CN103894958A - High-strength nut wrench - Google Patents
High-strength nut wrench Download PDFInfo
- Publication number
- CN103894958A CN103894958A CN201210580776.6A CN201210580776A CN103894958A CN 103894958 A CN103894958 A CN 103894958A CN 201210580776 A CN201210580776 A CN 201210580776A CN 103894958 A CN103894958 A CN 103894958A
- Authority
- CN
- China
- Prior art keywords
- ratchet
- ratchet wheel
- wheel body
- high strength
- acute angle
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
- B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
- B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
- B25B13/465—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis a pawl engaging an internally toothed ring
Abstract
The invention relates to a manual tool, in particular to a high-strength nut wrench. The high-strength nut wrench comprises a ratchet wheel body and a wrench rod, the ratchet wheel body is arranged on the head of the wrench rod, a ratchet wheel is arranged in the ratchet wheel body and provided with teeth at the rim, tooth sockets are formed between the adjacent teeth, a middle through hole of the ratchet wheel is a square through hole, the tooth sockets are nested with one end of the top end of a pawl, the other end of the pawl is connected with one end of a spring, and the other end of the spring is connected with an adjusting screw. By the aid of projections and combination of the ratchet wheel and the tooth sockets nested with the projections on the pawl and by the aid of the spring connected with the other end of the pawl, unidirectional twisting can be realized. That is, the wrench rod is rotated along one direction and is rotated in the other direction without driving a workpiece to rotate together. Due to the design of acute projection, the pawl can bear high strength without damage, the problem that the nut wrench cannot generate sufficient torsion in the prior art is solved, and application range of the nut wrench is enlarged.
Description
Technical field
The present invention relates to a kind of hand-operated tools, be specifically related to a kind of high strength nut spanner.
Background technology
Spanner is a kind of instrument of current people extensive use in productive life, in prior art, nut spanner is generally made up of tommy bar and the ratchet wheel body that is arranged on tommy bar head, when use, the wrench body of holding with a firm grip afterbody, then rotary spanner body firmly, but in actual conditions due to the design problem of pawl-and-gearing, can not produce enough torsion and reach fastening requirement.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of high strength nut spanner and solves the problem that can not produce enough torsion in prior art due to the design problem of pawl-and-gearing.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of high strength nut spanner, comprise ratchet wheel body and tommy bar, described ratchet wheel body is arranged on the head of tommy bar, in described ratchet wheel body, be provided with ratchet, described ratchet edge is provided with the gear teeth, between described adjacent teeth, forms teeth groove, described ratchet intermediate throughholes is square through hole, one end, top tabling of described teeth groove and ratchet, one end of the other end linking springs of described ratchet, the other end of described spring is connected with adjustment screw.
The invention has the beneficial effects as follows: by using this projection, in conjunction with on ratchet with the teeth groove of described ratchet upper process tabling, and the spring of ratchet other end connection, can reach the object of unidirectional twisting, rotate after tommy bar along a direction, rotating tommy bar along the opposing party can not drive workpiece to rotate together, due to the design of acute angle projection, ratchet energy bearing high strength strength and can not damaging, solve the problem that nut spanner in prior art can not produce enough torsion, also increased the scope of application of nut spanner.
On the basis of technique scheme, the present invention can also do following improvement.
Further, the chimeric one end of described ratchet and teeth groove is provided with projection, described projection be acute angle shape projection;
Further, in described acute angle shape projection, limit of acute angle and tommy bar axis angle are less than 90 degree, and in described acute angle shape projection, another limit of acute angle and tommy bar axis angle are less than or equal to 90 degree.
Adopt the beneficial effect of above-mentioned further scheme to be: the object that can reach unidirectional twisting, rotate after tommy bar along a direction, rotating tommy bar along the opposing party can not drive workpiece to rotate together, due to the design of acute angle projection, ratchet energy bearing high strength strength and can not damaging, solve the problem that nut spanner in prior art can not produce enough torsion, also increased the scope of application of nut spanner.
Further, described via height is less than ratchet thickness;
Further, described ratchet wheel body is provided with cover plate;
Further, described cover plate is provided with sunk screw, and described cover plate and ratchet wheel body are fixed by sunk screw.
Adopt the beneficial effect of above-mentioned further scheme to be: attenuate the thickness of ratchet wheel body, in narrow occasion, also can use spanner, increased the scope of application of spanner, use sunk screw cover plate is fixed on ratchet wheel body, ratchet can not dropped out from ratchet wheel body.
Brief description of the drawings
Fig. 1 is apparatus of the present invention top view;
Fig. 2 is apparatus of the present invention front view;
Fig. 3 is the utility model side view.
In accompanying drawing, the list of parts of each label representative is as follows:
1, ratchet wheel body, 2, ratchet, 3, teeth groove, 4, the gear teeth, 5, ratchet, 6, spring, 7, adjustment screw, 8, tommy bar, 9, cover plate, 10, sunk screw.
Detailed description of the invention
Below in conjunction with accompanying drawing, principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, for apparatus of the present invention half sectional view, comprise ratchet wheel body 1 and tommy bar 8, described ratchet wheel body 1 is arranged on the head of tommy bar 8, in described ratchet wheel body 1, is provided with ratchet 2, described ratchet 2 edges are provided with the gear teeth 4, between described adjacent teeth 4, form teeth groove 3, described ratchet 2 intermediate throughholes are square through hole, one end, top tabling of described teeth groove 3 and ratchet 5, one end of the other end linking springs 6 of described ratchet 5, the other end of described spring 6 is connected with adjustment screw 7.
Fig. 2 is apparatus of the present invention top view, comprise ratchet wheel body 1 and tommy bar 8, described ratchet wheel body 1 is arranged on the head of tommy bar 8, described ratchet wheel body 1 is provided with cover plate 9, in described ratchet wheel body 1, be provided with ratchet 2, described cover plate 9 is provided with sunk screw 10, and described ratchet wheel body 1 is connected with ratchet 5, one end of described ratchet 5 linking springs 6, the other end of described spring 6 is connected with adjustment screw 10.
Fig. 3, is apparatus of the present invention front view, comprises ratchet wheel body 1, is arranged on cover plate 9 and the tommy bar 8 being connected with described ratchet wheel body on described ratchet wheel body 1.
The chimeric one end of described ratchet 5 and teeth groove 3 is provided with projection, described projection be acute angle shape projection; In described acute angle shape projection, limit of acute angle and tommy bar axis angle are less than 90 degree, in described acute angle shape projection, another limit of acute angle and tommy bar axis angle are less than or equal to 90 degree, described square via height is less than ratchet thickness, described ratchet wheel body 1 is provided with cover plate 9, described cover plate 9 is provided with sunk screw 10, and described cover plate 9 is fixing by sunk screw 10 with ratchet wheel body 1.
By using this projection, in conjunction with on ratchet 2 with the teeth groove 3 of described ratchet 5 upper process tablings, and the spring 6 of ratchet 5 other ends connections, can reach the object of unidirectional twisting, rotate after tommy bar 8 along a direction, rotate tommy bar 8 along the opposing party and can not drive workpiece to rotate together, due to the design of acute angle projection, ratchet 5 can bearing high strength strength and can not damage, and have solved nut spanner in prior art and can not produce the problem of enough torsion, have also increased the scope of application of nut spanner.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a high strength nut spanner, it is characterized in that: comprise ratchet wheel body and tommy bar, described ratchet wheel body is arranged on the head of tommy bar, in described ratchet wheel body, be provided with ratchet, described ratchet edge is provided with the gear teeth, between described adjacent teeth, forms teeth groove, described ratchet intermediate throughholes is square through hole, one end, top tabling of described teeth groove and ratchet, one end of the other end linking springs of described ratchet, the other end of described spring is connected with adjustment screw.
2. a kind of high strength nut spanner according to claim 1, is characterized in that: the chimeric one end of described ratchet and teeth groove is provided with projection, described projection be acute angle shape projection.
3. a kind of high strength nut spanner according to claim 2, is characterized in that: in described acute angle shape projection, limit of acute angle and tommy bar axis angle are less than 90 degree, and in described acute angle shape projection, another limit of acute angle and tommy bar axis angle are less than or equal to 90 degree.
4. a kind of high strength nut spanner according to claim 1, is characterized in that: described via height is less than ratchet thickness.
5. a kind of high strength nut spanner according to claim 1, is characterized in that: described ratchet wheel body is provided with cover plate.
6. a kind of high strength nut spanner according to claim 1, is characterized in that: described cover plate is provided with sunk screw, described cover plate and ratchet wheel body are fixed by sunk screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210580776.6A CN103894958A (en) | 2012-12-27 | 2012-12-27 | High-strength nut wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210580776.6A CN103894958A (en) | 2012-12-27 | 2012-12-27 | High-strength nut wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103894958A true CN103894958A (en) | 2014-07-02 |
Family
ID=50986698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210580776.6A Pending CN103894958A (en) | 2012-12-27 | 2012-12-27 | High-strength nut wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103894958A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652394A (en) * | 2016-03-25 | 2016-06-08 | 山东华光光电子股份有限公司 | Laser coaxial-coupling calendaring strength control device |
| CN107520788A (en) * | 2017-10-25 | 2017-12-29 | 重庆工业职业技术学院 | A kind of spanner of the knockout screw in Garden Engineering curtain wall gap |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4308769A (en) * | 1980-06-02 | 1982-01-05 | Bertha Rantanen | Reversing ratcheting wrench |
| CN2032532U (en) * | 1988-04-08 | 1989-02-15 | 徐瑞兴 | Two-way spanner |
| CN2179233Y (en) * | 1993-06-05 | 1994-10-12 | 宋鹏辉 | Spanner |
| US5957008A (en) * | 1998-04-30 | 1999-09-28 | Long; Paul S. | Adjustable ratchet wrench |
| CN203125399U (en) * | 2012-12-27 | 2013-08-14 | 重庆科众机械有限公司 | High-strength nut wrench |
-
2012
- 2012-12-27 CN CN201210580776.6A patent/CN103894958A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4308769A (en) * | 1980-06-02 | 1982-01-05 | Bertha Rantanen | Reversing ratcheting wrench |
| CN2032532U (en) * | 1988-04-08 | 1989-02-15 | 徐瑞兴 | Two-way spanner |
| CN2179233Y (en) * | 1993-06-05 | 1994-10-12 | 宋鹏辉 | Spanner |
| US5957008A (en) * | 1998-04-30 | 1999-09-28 | Long; Paul S. | Adjustable ratchet wrench |
| CN203125399U (en) * | 2012-12-27 | 2013-08-14 | 重庆科众机械有限公司 | High-strength nut wrench |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652394A (en) * | 2016-03-25 | 2016-06-08 | 山东华光光电子股份有限公司 | Laser coaxial-coupling calendaring strength control device |
| CN107520788A (en) * | 2017-10-25 | 2017-12-29 | 重庆工业职业技术学院 | A kind of spanner of the knockout screw in Garden Engineering curtain wall gap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140702 |