CN104956084A - Piston body construction of air compressor - Google Patents
Piston body construction of air compressor Download PDFInfo
- Publication number
- CN104956084A CN104956084A CN201380069835.6A CN201380069835A CN104956084A CN 104956084 A CN104956084 A CN 104956084A CN 201380069835 A CN201380069835 A CN 201380069835A CN 104956084 A CN104956084 A CN 104956084A
- Authority
- CN
- China
- Prior art keywords
- air
- piston head
- piston
- piston body
- buffering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
- F04B39/0016—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons with valve arranged in the piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
- F04B39/041—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod
- F04B39/042—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod sealing being provided on the piston
Abstract
A piston body construction of an air compressor, comprising a piston head (61). The piston head (61) is provided thereon with a cushioning air-accommodating indentation (60) that has an opening formed from the top, is inwardly indented, and has formed a bottom wall and a sidewall. This allows a piston body (6), while moving reciprocatively in a cylinder of the air compressor, to be kept in a safe pressure value range with respect to an object being inflated, and obviates the need for a pressure valve to be provided additionally.
Description
The present invention relates to a kind of piston body structure of air compressor, the buffering that referring in particular to a kind of piston body of air compressor can allow the compressed air that is exported of compressor in action to be positively retained in the range of safe pressure value with one receives air drain, this kind design can allow existing air compressor to set up pressure safety valve again, can reduce manufacturing cost.
Air compressor is a kind of equipment that can be inflated object to be inflatable product, the general inflation purposes for being widely used in air cushion, tire etc., because air compressor small volume is easy to be carried placement, by portable DC power supply or it can also be connected to simultaneously at automobile cigarette lighter socket, the electrical source of power of air compressor can be provided, upper suitable simple and convenient is being operated and using.In general, existing air compressor, Figure 14 be refer to Figure 16, its main basic building block includes cylinder 81, piston body 82, power motor 93 and gear wheel 94 as transmission mechanism, little gear 95, motor 93 drives gear wheel 94 after starting by the little gear 95 installed on axle center, and piston body 82 is interlocked by the crank-pin 96 in gear wheel 94, oscillating rectilinear motion is carried out in cylinder 81 or the interior room of cylinder 91, the pressure-air produced by such a action can be via path 97（Refer to Figure 16）Export and be connected in object to be inflatable product, to reach the purpose of inflation.Another path 98（Refer to Figure 16）It then can directly or indirectly link a pressure gauge（Not shown in figure）The pressure value of inflation is visually understood with convenient use person.With continued reference to Figure 14 and Figure 15, in cylinder 81, the piston head 821 of existing piston body 82 is provided with the vent cap 822 run through, and the piston body 92 such as Figure 16 in cylinder 91, its piston head 921 is solid state and does not have the vent cap run through, however, being piston body 82 or piston body 92 is all installed in cylinder 81 or cylinder 91, a pressure safety valve 84 and safety valve are additionally provided with the grade blowing plant（Another angle in figure 16 thus fail to show）If the pressure value of produced pressure-air has gone beyond the safe pressure value set by object to be inflatable product, the pressure safety valve 84 can be driven and discharge the pressure-air inside air storage chamber 85 outside machine, not further into object to be inflatable, to safeguard the security of blowing plant and object to be inflatable, so also due to setting up such a pressure safety valve, therefore dealer is increased manufacturing cost, be not inconsistent economic benefit.
The present inventor has the missing of increase manufacturing cost in view of additonal pressure safety valve in blowing plant; also need to be classified as the protective effect of pressure safety valve into indispensable Consideration thoughts in manufacture blowing plant again; it is meticulous R ＆ D design for this; finally develop and a kind of be required for pressure safety valve but with as existing product adds the blowing plant of the protecting effect of pressure safety valve, this case is produced therefrom.
The technical problems to be solved by the invention are to provide a kind of piston body structure of air compressor, and it can make air compressor to set pressure safety valve, you can with safeguard protection effect.
In order to solve the above technical problems, the technical solution of the present invention is：
A kind of piston body structure of air compressor, the piston body includes a piston head, the horizontal-extending faces of XY that the piston head extends from its highest top tabular surface institute dummy level, piston head below the XY horizontal planes virtually extended physically receives air drain at least formed with a buffering, the buffering receives air drain and possesses and have opening, by the opening is towards sunken inside and forms bottom wall and perisporium, the buffering, which receives air drain, to be made piston body carry out the air pressure that oscillating rectilinear motion persistently produces in the cylinder of air compressor will not to go beyond the safe pressure value of inflated article, allow air compressor that the pressure safety valve with protective effect need not be additionally set.
It is described buffering receive air drain its periphery be open piston head top formation one tabular surface top end wall, down extend the base end wall for forming the piston head by top end wall, it is additionally provided with the ring groove of a depression on periphery wall between the top end wall and base end wall of piston head, the ring groove and buffering are received air drain and be not communicated with；The first end of a piston rod is connected to by the base end wall of piston head, the second end of the piston rod is simultaneously provided with a pivoted hole；One gas-tight ring, it is installed in the ring groove of foregoing piston head.
The piston head have it is several be not attached to logical described buffering and receive air drain, each buffering receives air drain has different shape, the construction of different depth respectively.
The piston head is provided with one by the extraneous air inlet for running through the base end wall that piston head is received in air drain to buffering, the base end wall is additionally provided with a projection and fixes a reed, reed occlusion air inlet when stroke is rushed on, the reed is elapsed by outside air during undershoot stroke opens, and allows outside air to enter cylinder interior room.
After such scheme, because the piston head of piston body of the present invention does not have the vent cap run through, and be provided with buffering and receive air drain, the safe pressure value of inflated article will not be gone beyond by piston body is carried out the air pressure that oscillating rectilinear motion persistently produces in the cylinder of air compressor, therefore air compressor need not additionally set the pressure safety valve with protective effect, inflated article can be made to be maintained in safe range of pressure values, not only there is safety in utilization, in it need not additionally add the design of pressure safety valve, there is the economic benefit of reduction manufacturing cost again.
Fig. 1 is the three-dimensional exploded view of inventive piston body；
Fig. 2 is the sectional axonometric drawing of inventive piston body；
Fig. 3 is the box body stereogram of blowing plant of the present invention；
Fig. 4 is another angle level schematic diagram of box body of the present invention；
The extraneous air of air compressor is sucked circulation schematic diagram by Fig. 5 for the piston body backward travel of the present invention；
Compressed air circulation schematic diagram when Fig. 6 acts for the piston body forward stroke of the present invention；
The extraneous air of air compressor is sucked circulation schematic diagram by Fig. 7 for the piston body backward travel of the present invention by air intake；
Compressed air circulation schematic diagram when Fig. 8 acts for the piston body forward stroke of the present invention；
Fig. 9 is another angular profile schematic diagram of the invention；
Figure 10 is air compressor stereogram of the invention；
Figure 11 is that buffering of the inventive piston head provided with different shaping, construction receives the floor map of air drain；
Figure 12 is another construction three-dimensional exploded view of inventive piston body；
Figure 13 is another construction sectional axonometric drawing of inventive piston body；
Figure 14 is that the extraneous air of air compressor is sucked circulation schematic diagram by existing piston body backward travel；
Figure 15 is compressed air circulation schematic diagram when existing piston body forward stroke is acted；
Figure 16 is another angle schematic diagram when existing piston body forward stroke is acted.
【Symbol description】
The motor of 1 unit, 10 machine plate 11
The cam pin of 12 little gear, 13 gear wheel 15
The roof of 2 cylinder, 21 cylinder interior room 22
The air intake of 23 passage, 24 inner peripheral wall 26
The gas storage of 27 reed 3 31 manifolds of seat
The valve seat of 32 manifold, 33 manifold 34
The box body of 35 air storage chamber, 36 spring 4
The pressure display table 45 of 41 flexible pipe 42 switching switch
The open-close cover of 46 touch switch, 461 push rod 47
The 5 soft bolts of lid 52 of the discouraged shape for hat of valve group 51
6 piston bodies 60 buffering is received air drain 601 and is open
The piston head of 602 bottom wall, 603 perisporium 61
The piston rod of 611 top end wall, 612 base end wall 62
The pivoted hole of 621 622 second end of first end 63
The air inlet of 64 ring groove, 65 gas-tight ring 66
The cylinder of 67 projection, 68 reed 81
The vent cap of 82 piston body, 821 piston head 822
The air storage chamber of 83 gas bleeder valve, 84 safety valve 85
The piston head of 91 cylinder, 92 piston body 921
The little gear of 93 motor, 94 gear wheel 95
The path of 96 crank-pin, 97 path 98
901 gas bleeder valves
In order to further disclose the technological means of the present invention, now with specific embodiment, the present invention will be described in detail.
It please refer to Fig. 1 and Fig. 2, for the piston body structure of air compressor of the present invention, the piston body 6 includes piston head 61 and piston rod 62, by the horizontal-extending faces of XY of 61 highest top tabular surface institutes of piston head dummy level extension, piston head 61 below the XY horizontal planes virtually extended physically possesses at least formed with one to be had opening 601 and towards sunken inside and is formed the buffering of bottom wall 602 and perisporium 603 by the opening 601 and receive air drain 60, the buffering receive air drain 60 its be open 601 periphery the top of piston head 61 formed a tabular surface top end wall 611, down extend the base end wall 612 for forming the piston head 61 by top end wall 611, the ring groove 64 of a depression is additionally provided with periphery wall between the top end wall 611 and base end wall 612 of piston head 61, the ring groove 64 receives air drain 60 to be not communicated with state with buffering.The first end 621 of a piston rod 62 with certain length is connected to by the base end wall 612 of piston head 61, the tail end of the piston rod 62, i.e. the second end 622 are provided with a pivoted hole 63 simultaneously.One gas-tight ring 65, it acts on the function of similar o-ring, and it can be installed in the ring groove 64 of foregoing piston head 61.
The actual use of the whole unit 1 of air compressor of the present invention see shown in Fig. 3 to Fig. 6 and Figure 10, the wherein state as shown in Figure 10 of unit 1, the unit 1 has a machine plate 10, in fixing a motor 11 on machine plate 10 and provided with a cylinder 2, the cam pin 15 that little gear 12 in transmission mechanism links on gear wheel 13, gear wheel 13 is then linked to the pivoted hole 63 of the tail end of piston rod 62 of piston body 6.Cylinder 2 has a roof 22 in the top of cylinder interior room 21, the roof 22 have a passage 23 can insertion to the gas storage seat 3 of the top of cylinder 2, be provided with several manifolds 31,32,33 in gas storage seat 3.Provided with a valve seat 34 and the spring 36 being butted on above the valve seat 34 at the passage 23 in gas storage seat 3.Manifold 31 on gas storage seat 3 can link a flexible pipe 41, and manifold 32 links a pressure display table 42, and manifold 33 then installs a discouraged valve group 5, the soft lid 51 of a shape for hat is provided with the inner terminal for valve group 5 of losing heart.Whole unit 1 can be assembled within a box body, wherein the box body 4 is physically being provided with a switching switch 45 as the action for starting or closing air compressor, and the pressure display table 42 of unit 1 can be emerging in the outer surface of box body 1, the push rod 461 of another inner side of touch switch 46 then may pass through a bolt 52 and contradict the soft lid 51 of shape for hat of the discouraged valve group 5 on air compressor, in the state of higher pressure force value is obviously presented in inflated thing, the soft lid 51 of shape for hat that user can press touch switch 46 easily to press discouraged valve group 5, the soft lid 51 of the shape for hat can by compression and allow inflated thing overpressure by install this lose heart valve group 5 manifold 33 release.The flexible pipe 41 that manifold 31 is linked can be incorporated in box body 4, and is closed by an open-close cover 47, reach the aesthetic property of collection.Foregoing unit 1 is installed in box body 4, and the state of its apparent condition and internal associated can be with reference to Fig. 3,4 and Fig. 9.
Can be with reference to Fig. 5 and Fig. 6 in the operating state that cylinder interior room 21 is compressed air about piston body 6.The piston body 6 of air compressor can carry out oscillating rectilinear motion in cylinder 2, can be pushed to the air of cylinder interior room 21 in the air storage chamber 35 of gas storage seat 3 when rushing stroke on piston body 6（As shown in Figure 6）, and then can be exported by the flexible pipe 41 of manifold 31 to object to be inflatable；The undershoot stroke of piston body 6 can then allow gap of the outside air between the inner peripheral wall 24 of piston body 6 and cylinder 2 to enter cylinder interior room 21（As shown in Figure 5）, so going round and beginning again can be by object to be inflatable top off.Because inventive piston first 61 provided with a buffering receives air drain 60, when rushing stroke to top dead-centre on piston body 6, although the top end wall 611 of piston head 61 has been butted on the roof 22 on the top of cylinder interior room 21, but it can allow to be equal to and receive the compressed air of air drain volume and exist in cylinder interior room 21 because buffering receives the presence of air drain 60, such a design not only can allow piston body 6 more to increase the smoothness of running because of drag reduction, it can be also maintained at simultaneously to being inflated thing in safe range of pressure values in gas replenishment process, with safety in utilization, for that reason, the present invention may not necessarily add one pressure safety valve of setting.Certainly, piston body 6 of the invention also can be applicable to the cylinder 2 for being provided with an air intake 26 and reed 27（As shown in Figure 7）, when rushing stroke on piston body 6, the inaccessible air intake 26 of reed 27；In 6 undershoot stroke of piston body, outside air elapses reed 27 and enters cylinder interior room 21 by air intake 26, refers to Fig. 7 and Fig. 8, the piston body 6 applied to such a cylinder 2 still can reach identical benefit.
As shown in FIG. 12 and 13, inventive piston body 6 carries out rushing the action of stroke and undershoot stroke on shuttle in cylinder 2, if entering cylinder interior room 21 by the use of piston head 61 as outside air is provided in undershoot stroke, then the piston head 61 can be provided with one by the extraneous air inlet 66 for being through to the base end wall 612 that buffering is received in air drain 60, the base end wall 612 is additionally provided with a projection 67 to fix a reed 68, the reed 68 is by inaccessible air inlet 66 when stroke is rushed on, the reed 68 is then elapsed by outside air during undershoot stroke opens, outside air is allowed to enter cylinder interior room 21.
It refer to Figure 11, inventive piston first 61 can have several bufferings out of the ordinary receive air drain P1, P2, P3, it is to be not attached to design that is logical and being different depth that these bufferings, which receive air drain P1, P2, P3,.
Discussed before overall view, the piston body 6 of the present invention receives air drain 60 on its piston head 61 provided with buffering, whole air compressor is set to add pressure safety valve in addition, manufacturing cost can not only be reduced and there is economic benefit, piston body 6 is allowed to have more smoothness and security in running stroke, the present invention is real to have novelty and progressive.
Claims (4)
1st, a kind of piston body structure of air compressor, it is characterised in that：The piston body includes a piston head, the horizontal-extending faces of XY that the piston head extends from its highest top tabular surface institute dummy level, piston head below the XY horizontal planes virtually extended physically receives air drain at least formed with a buffering, the buffering receives air drain and possesses and have opening, by the opening is towards sunken inside and forms bottom wall and perisporium, the buffering, which receives air drain, to be made piston body carry out the air pressure that oscillating rectilinear motion persistently produces in the cylinder of air compressor will not to go beyond the safe pressure value of inflated article, allow air compressor that the pressure safety valve with protective effect need not be additionally set.
2nd, the piston body structure of air compressor as claimed in claim 1, it is characterised in that：It is described buffering receive air drain its periphery be open piston head top formation one tabular surface top end wall, down extend the base end wall for forming the piston head by top end wall, it is additionally provided with the ring groove of a depression on periphery wall between the top end wall and base end wall of piston head, the ring groove and buffering are received air drain and be not communicated with；The first end of a piston rod is connected to by the base end wall of piston head, the second end of the piston rod is simultaneously provided with a pivoted hole；One gas-tight ring, it is installed in the ring groove of foregoing piston head.
3rd, the piston body structure of air compressor as claimed in claim 1, it is characterised in that：The piston head have it is several be not attached to logical described buffering and receive air drain, each buffering receives air drain has different shape, the construction of different depth respectively.
4th, the piston body structure of air compressor as claimed in claim 1, it is characterised in that：The piston head is provided with one by the extraneous air inlet for running through the base end wall that piston head is received in air drain to buffering, the base end wall is additionally provided with a projection and fixes a reed, reed occlusion air inlet when stroke is rushed on, the reed is elapsed by outside air during undershoot stroke opens, and allows outside air to enter cylinder interior room.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/071530 WO2014121495A1 (en) | 2013-02-07 | 2013-02-07 | Piston body construction of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104956084A true CN104956084A (en) | 2015-09-30 |
Family
ID=51299202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380069835.6A Pending CN104956084A (en) | 2013-02-07 | 2013-02-07 | Piston body construction of air compressor |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP2955382B1 (en) |
| JP (1) | JP6067143B2 (en) |
| KR (1) | KR20150109343A (en) |
| CN (1) | CN104956084A (en) |
| DK (1) | DK2955382T3 (en) |
| HU (1) | HUE040224T2 (en) |
| PL (1) | PL2955382T3 (en) |
| WO (1) | WO2014121495A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5266015A (en) * | 1992-02-13 | 1993-11-30 | Tecumseh Products Company | Compressor suction and discharge valve assembly |
| US5655887A (en) * | 1996-09-11 | 1997-08-12 | Chou; Wen-San | Valved Piston arrangement for an electric motor driven air compressor |
| US6213725B1 (en) * | 1998-03-30 | 2001-04-10 | Wen San Chou | Compressor having an improved piston |
| JP2004190625A (en) * | 2002-12-13 | 2004-07-08 | Bunsan Shu | Piston for air compressor |
| CN101240784A (en) * | 2007-02-05 | 2008-08-13 | 周文三 | Air compressor piston body structure |
| CN101429935A (en) * | 2007-11-07 | 2009-05-13 | 周文三 | Piston body structure of air compressor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB145864A (en) * | 1919-03-31 | 1920-06-30 | Morris Henry Petigor | Improvements in and relating to dispensing pumps |
| ES268273A1 (en) * | 1961-06-15 | 1961-10-01 | Gemez Martinez Martin | Compressors |
| JPS56145683U (en) * | 1980-03-05 | 1981-11-02 | ||
| JPH0219598Y2 (en) * | 1987-05-30 | 1990-05-30 | ||
| ES2308726T3 (en) * | 2005-02-16 | 2008-12-01 | Basf Se | 5-ALCOXIAQUIL-6-ALQUIL-7-AMINO-AZOLOPIRIMIDINAS, PROCEDURE FOR ITS OBTAINING AND ITS EMPLOYMENT FOR THE FIGHT AGAINST DAMAGING FUNGES AS WELL AS AGENTS CONTAINING THEM. |
| US20080237510A1 (en) * | 2005-08-16 | 2008-10-02 | Wen San Chou | Valve device for air compressor |
| US20070264141A1 (en) * | 2006-05-09 | 2007-11-15 | Chou Wen S | Air compressor having improved valve device |
| DE102008061311A1 (en) * | 2008-12-11 | 2010-06-24 | Doukas Ag | Device for conveying a gas |
-
2013
- 2013-02-07 DK DK13874617.7T patent/DK2955382T3/en active
- 2013-02-07 WO PCT/CN2013/071530 patent/WO2014121495A1/en active Application Filing
- 2013-02-07 KR KR1020157017327A patent/KR20150109343A/en not_active Application Discontinuation
- 2013-02-07 EP EP13874617.7A patent/EP2955382B1/en active Active
- 2013-02-07 HU HUE13874617A patent/HUE040224T2/en unknown
- 2013-02-07 PL PL13874617T patent/PL2955382T3/en unknown
- 2013-02-07 CN CN201380069835.6A patent/CN104956084A/en active Pending
- 2013-02-07 JP JP2015555530A patent/JP6067143B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5266015A (en) * | 1992-02-13 | 1993-11-30 | Tecumseh Products Company | Compressor suction and discharge valve assembly |
| US5655887A (en) * | 1996-09-11 | 1997-08-12 | Chou; Wen-San | Valved Piston arrangement for an electric motor driven air compressor |
| US6213725B1 (en) * | 1998-03-30 | 2001-04-10 | Wen San Chou | Compressor having an improved piston |
| JP2004190625A (en) * | 2002-12-13 | 2004-07-08 | Bunsan Shu | Piston for air compressor |
| CN101240784A (en) * | 2007-02-05 | 2008-08-13 | 周文三 | Air compressor piston body structure |
| CN101429935A (en) * | 2007-11-07 | 2009-05-13 | 周文三 | Piston body structure of air compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6067143B2 (en) | 2017-01-25 |
| WO2014121495A1 (en) | 2014-08-14 |
| EP2955382B1 (en) | 2018-06-27 |
| EP2955382A1 (en) | 2015-12-16 |
| PL2955382T3 (en) | 2019-04-30 |
| HUE040224T2 (en) | 2019-03-28 |
| JP2016505113A (en) | 2016-02-18 |
| DK2955382T3 (en) | 2018-10-08 |
| EP2955382A4 (en) | 2016-09-07 |
| KR20150109343A (en) | 2015-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104956085A (en) | Air compressor construction | |
| CN105864691A (en) | Hidden type adjustable LED lamp device | |
| CN205533518U (en) | Two -stage gas cylinder | |
| CN104956084A (en) | Piston body construction of air compressor | |
| CN207113713U (en) | A kind of rescue line-throwing appliance of angle adjustable | |
| CN203412716U (en) | Bidirectional aerated high-pressure hand-pull inflator | |
| CN209038585U (en) | Vacuum absorption device and its big width shell | |
| CN204099160U (en) | A kind of low noise Portable air compressor | |
| CN106274311B (en) | Take turns side inflation/deflation control assembly | |
| CN204827875U (en) | Oil -free air compressor's cylinder cap | |
| CN103362776A (en) | Bi-directional aerating high pressure inflator | |
| CN201486595U (en) | Pneumatic machine | |
| CN113046245A (en) | Stem cell culture device with controllable internal environment | |
| CN2918875Y (en) | Breathing apparatus in spring brake cylinder | |
| CN106593811B (en) | A kind of mechanical air charging system | |
| CN2804429Y (en) | Electric two-piston air pump | |
| CN2804428Y (en) | Electric three-piston high pressure air pump | |
| CN203127207U (en) | Plano-convex packaging forming device of stretch film packaging machine | |
| CN202007764U (en) | Diaphragm compressor with detecting instrument box | |
| CN201386477Y (en) | Multifunctional double-glazed panel | |
| CN206299536U (en) | A kind of twin-tub double motor type inflator pump | |
| CN220415644U (en) | Built-in air pump | |
| CN201356334Y (en) | Inflatable screen | |
| CN206171053U (en) | Automobile tire alarm | |
| CN201356230Y (en) | Inflatable bed notebook computer desk |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150930 |
|
| WD01 | Invention patent application deemed withdrawn after publication |