CN105545909A - Core bar self-locking type blind rivet - Google Patents
Core bar self-locking type blind rivet Download PDFInfo
- Publication number
- CN105545909A CN105545909A CN201610093542.7A CN201610093542A CN105545909A CN 105545909 A CN105545909 A CN 105545909A CN 201610093542 A CN201610093542 A CN 201610093542A CN 105545909 A CN105545909 A CN 105545909A
- Authority
- CN
- China
- Prior art keywords
- core bar
- self
- locking type
- nail cover
- plugging rivet
- 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
- 230000010354 integration Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/04—Rivets; Spigots or the like fastened by riveting
- F16B19/08—Hollow rivets; Multi-part rivets
- F16B19/10—Hollow rivets; Multi-part rivets fastened by expanding mechanically
- F16B19/1027—Multi-part rivets
Abstract
The invention initiatively provides a core bar self-locking type blind rivet. The core bar self-locking type blind rivet comprises a core bar and a rivet sleeve, wherein the core bar is divided into a bar part and a riveting part by a breaking slot, the bar part is sleeved with the rivet sleeve, the outer diameter of the portion, from the end part to the inside, of the riveting part or the outer diameter of the whole riveting part is larger than the inner diameter of the rivet sleeve, and a hollow groove extends inwards from the center of the end part of the riveting part. The core bar self-locking type blind rivet has high integration degree, doesn't require a lock ring and can be locked only through the structure of the core bar.
Description
Technical field
The invention belongs to anchor design and manufacturing technology field, particularly relates to core bar self-locking type self-plugging rivet.
Background technique
Self-plugging rivet is a kind of fastening piece that can carry out one side installation, is widely used in the connection of aerospace vehicle.The application of self-plugging rivet can improve the internal structure design of aircraft, need not for installing reserved too much state space; Simple and fast installed by self-plugging rivet, has special riveting gun, and in installation process, noise and vibrations all greatly reduce.Self-plugging rivet can be used for metallic material and connects, and also have specialized designs to be applied to the self-plugging rivet of composite material connection, can bear larger tension and shearing resistance, self-plugging rivet is widely used in the occasions such as one side installation, maintenance.General Aero-Space self-plugging rivet is made up of accessory parts such as core bar, nail cover and lock rings, after field riveting, carries out mechanical interlocking by parts such as lock rings.But these self-plugging rivet when mounted, lock ring has installs failed risk; When this type of self-plugging rivet is used for high vibration area or the time of installing and using is more of a specified duration, lock ring has the risk come off.As the self-plugging rivet applying band lock ring just forbidden by aircraft engine intake.
Summary of the invention
The invention is for solving the problems of the prior art, and provide a kind of core bar self-locking type self-plugging rivet, structure-integrated degree is high, without the need to by lock ring, can lock by means of only core bar self structure.
A kind of core bar self-locking type self-plugging rivet that the invention provides, comprises core bar and nail cover; Described core bar is divided into bar portion and caulking part two-part by cut-off neck slot, bar portion is set with described nail cover, and the part or all of external diameter inside from end of described caulking part is greater than the internal diameter of described nail cover, and described caulking part to have extended internally groove from end center.
Wherein, the external diameter of the caulking part tail portion at described groove place is slightly larger than the described internal diameter following closely cover; The external diameter not being extended with the riveted joint size section part of described groove, with described to follow closely the internal diameter overlapped substantially identical, is provided with intermediate incline between the tail portion of described caulking part and head section part.
Wherein, importing inclined-plane is also provided with inside described nail cover tail end.
Wherein, described nail cover head is round table-like supporting structure.Further, the end face of described supporting structure inwardly offers step.
Wherein, the rivet of the invention also comprises riveted joint pad, to be set on described core bar and to be positioned at the supporting structure side of described nail cover, described riveted joint pad protrudes to described supporting structure side and is extended with a boss, the external diameter of described boss mates with described large radial direction of following closely the step overlapped, and preferably equals or slightly larger than the large footpath of step of described nail cover.
Wherein, the end in the bar portion of described core bar is provided with clamping structure.
The core bar self-locking type self-plugging rivet of the invention, structure-integrated degree is high, bulk-breaking is few, lock without the need to relying on additional part (as lock ring), avoid because lock ring exists the installation failure brought or the risk come off, can lock by means of only core bar self structure, improve the reliability of self-plugging rivet.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of mode of execution of the invention;
Fig. 2 is the structural representation of the invention core bar;
Fig. 3 is the structural representation of the invention nail cover;
Fig. 4 is the structural representation of the invention riveting stake sheet;
Fig. 5 is the structural representation after the invention is installed;
Fig. 6 is the partial enlarged drawing of circled portion in Fig. 5 (locking mechanism).
Wherein, 1-core bar; 11-cut-off neck slot; 12-bar portion; 121-clamping structure; 13-caulking part; 131-tail portion; 132-head section part; 133-intermediate incline; 14-groove; 2-follows closely cover; 21-imports inclined-plane; 22-supporting structure; 23-step; 3-rivets pad; 31-boss.
Embodiment
Below by being further described the invention by reference to the accompanying drawings.
A kind of embodiment of the invention structure as Figure 1-4, comprises core bar 1 and nail cover 2; Described core bar 1 is divided into bar portion 12 and caulking part 13 two-part by cut-off neck slot 11, bar portion 12 is set with described nail cover 2, the part or all of external diameter inside from end of described caulking part 13 is greater than the internal diameter of described nail cover 2, and described caulking part 13 to have extended internally groove 14 from end center.
Wherein, the setting of the described groove 14 that described caulking part 13 is inside from end and external diameter makes in installation process, caulking part 13 attenuates when entering in nail cover 2, follow closely cover 2 to expand simultaneously, thus the end of the caulking part 13 at groove 14 place is easy to deform and forms blind die structure, realize the self-locking effect of self-plugging rivet.In order to further facilitate the realization of self-locking effect, preferably, the internal diameter of external diameter slightly larger than described nail cover 2 of caulking part 13 tail portion 131 at described groove 14 place is made; The external diameter not being extended with caulking part 13 section parts 132 of described groove 14 is substantially identical with the internal diameter of described nail cover 2, is provided with intermediate incline 133 between the tail portion 131 of described caulking part 13 and head section part 132.
Wherein, entering nail cover 2 in order to further facilitate described caulking part 13 in installation process, reducing intake resistance, being also provided with inside described nail cover 2 tail end and importing inclined-plane 21.
Wherein, described nail cover 2 head is round table-like supporting structure 22, for carrying the active force being connected matrix and rivet.Further, the end face of described supporting structure 22 inwardly offers step 23, install when the caulking part 13 of core bar 1 and draw in after nail cover 2 completes, caulking part 13 can deform under the effect at bearing pressure near the end of cut-off neck slot 11, and engage with the step 23 of described nail cover 2, form a locking mechanism, core bar 1 can not be come off.
Wherein, the rivet of the invention also comprises riveted joint pad 3, to be set on described core bar 1 and to be positioned at supporting structure 22 side of described nail cover 2, described riveted joint pad 3 protrudes to described supporting structure 22 side and is extended with a boss 31, the external diameter of described boss 31 mates with the large radial direction of the step 23 of described nail cover 2, preferably equals or the large footpath of step 23 slightly larger than described nail cover 2.The setting of riveted joint pad 3 and boss 31 thereof, the caulking part 13 of core bar 1 is installed and after drawing in nail cover 2 completing, be more vulnerable to the power of boss 31 transmission of riveted joint pad 3 at caulking part 13 near the end of cut-off neck slot 11, thus more easily deform and form locking mechanism, complete and engage and lock.
Wherein, the end in the bar portion 12 of described core bar 1 is provided with clamping structure 121, as the conocave plane of symmetrically arranged inside processing, is convenient to setting tool (as hand riveter) gripping core bar 1.
The concise and to the point working procedure of the invention is, being inserted by the rivet of the invention is connected in the mounting hole of matrix, setting tool (as hand riveter) clamps the clamping structure 121 of core bar 1, and drawing is carried out to core bar 1, simultaneously, another structure of setting tool props up riveted joint pad 3, and acts on the head of nail cover 2.So, the caulking part 13 of core bar 1 draws in nail cover 2 gradually, while core bar 1 caulking part 13 enters nail cover 2, because the tail portion 131 of core bar 1 caulking part 13 is larger than nail cover 2 internal diameter, so core bar 1 caulking part 13 can attenuate when drawing in, follow closely cover 2 can expand simultaneously, form a blind die outward at mounting hole.After core bar 1 drawing puts in place, the power of riveting stake sheet 3 can act on the caulking part 13 of core bar 1 near the end of cut-off neck slot 11, makes it distortion, forms radial projection, and may be stuck on nail cover 2 step 23, forms locking mechanism (Fig. 6).After completing locking, core bar 1 can be broken by from cut-off neck slot 11, completes riveted joint (Fig. 5).
The foregoing is only the preferred embodiment of the invention; not in order to limit the invention; within all spirit in the invention and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in the invention.
Claims (7)
1. a core bar self-locking type self-plugging rivet, comprises core bar and nail cover; Described core bar is divided into bar portion and caulking part two-part by cut-off neck slot, bar portion is set with described nail cover, and the part or all of external diameter inside from end of described caulking part is greater than the internal diameter of described nail cover, and described caulking part to have extended internally groove from end center.
2. a kind of core bar self-locking type self-plugging rivet according to claim 1, is characterized in that, the external diameter of the caulking part tail portion at described groove place is slightly larger than the described internal diameter following closely cover; The external diameter not being extended with the riveted joint size section part of described groove, with described to follow closely the internal diameter overlapped substantially identical, is provided with intermediate incline between the tail portion of described caulking part and head section part.
3. a kind of core bar self-locking type self-plugging rivet according to claim 1, is characterized in that, is also provided with importing inclined-plane inside described nail cover tail end.
4. a kind of core bar self-locking type self-plugging rivet according to claim 1, is characterized in that, described nail cover head is round table-like supporting structure.
5. a kind of core bar self-locking type self-plugging rivet according to claim 4, is characterized in that, the end face of described supporting structure inwardly offers step.
6. a kind of core bar self-locking type self-plugging rivet according to claim 5, it is characterized in that, the rivet of the invention also comprises riveted joint pad, to be set on described core bar and to be positioned at the supporting structure side of described nail cover, described riveted joint pad protrudes to described supporting structure side and is extended with a boss, the external diameter of described boss mates with described large radial direction of following closely the step overlapped.
7. a kind of core bar self-locking type self-plugging rivet according to claim 1, it is characterized in that, the end in the bar portion of described core bar is provided with clamping structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610093542.7A CN105545909A (en) | 2016-02-18 | 2016-02-18 | Core bar self-locking type blind rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610093542.7A CN105545909A (en) | 2016-02-18 | 2016-02-18 | Core bar self-locking type blind rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105545909A true CN105545909A (en) | 2016-05-04 |
Family
ID=55825343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610093542.7A Pending CN105545909A (en) | 2016-02-18 | 2016-02-18 | Core bar self-locking type blind rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105545909A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015243A (en) * | 2016-07-05 | 2016-10-12 | 任宝全 | Manufacturing method of gradual thinning structure riveting nail for blind hole |
| CN106122215A (en) * | 2016-09-14 | 2016-11-16 | 航天精工股份有限公司 | A kind of one side is installed and is tapped rivet |
| CN107013545A (en) * | 2017-06-16 | 2017-08-04 | 航天精工股份有限公司 | A kind of self-plugging rivet |
| CN107061456A (en) * | 2017-06-16 | 2017-08-18 | 航天精工股份有限公司 | A kind of high-clamping force Self-locking blind rivet |
| CN107061459A (en) * | 2017-06-16 | 2017-08-18 | 航天精工股份有限公司 | A kind of lock ring internally-arranged type self-plugging rivet |
| CN107202057A (en) * | 2017-06-16 | 2017-09-26 | 航天精工股份有限公司 | A kind of pair of countersunk head blind riveting pumping nail |
| CN110227791A (en) * | 2019-06-25 | 2019-09-13 | 浙江汇聚自动化设备有限公司 | A kind of drift bolt guide frame of straight tube rivet |
| CN111894956A (en) * | 2020-07-15 | 2020-11-06 | 常金华 | High-strength sealing rivet |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2120741A (en) * | 1982-05-21 | 1983-12-07 | Avdel Ltd | Blind rivets |
| GB2124317B (en) * | 1982-07-16 | 1985-08-14 | George Siebol | Blind rivet assembly |
| US4784551A (en) * | 1985-05-24 | 1988-11-15 | Huck Manufacturing Company | Fastening system and method for flush and protruding head blind fasteners with common pin and particularly such fasteners constructed of exotic material |
| CN1320197A (en) * | 1998-09-25 | 2001-10-31 | 米拉戴尔有限公司 | Blind rivet and method of making the same |
| CN202646283U (en) * | 2012-06-12 | 2013-01-02 | 吴洪学 | Drum-shaped rivet |
| CN203285810U (en) * | 2013-04-22 | 2013-11-13 | 刘晓之 | Penetrating and cutting rivet |
-
2016
- 2016-02-18 CN CN201610093542.7A patent/CN105545909A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2120741A (en) * | 1982-05-21 | 1983-12-07 | Avdel Ltd | Blind rivets |
| GB2124317B (en) * | 1982-07-16 | 1985-08-14 | George Siebol | Blind rivet assembly |
| US4784551A (en) * | 1985-05-24 | 1988-11-15 | Huck Manufacturing Company | Fastening system and method for flush and protruding head blind fasteners with common pin and particularly such fasteners constructed of exotic material |
| CN1320197A (en) * | 1998-09-25 | 2001-10-31 | 米拉戴尔有限公司 | Blind rivet and method of making the same |
| CN202646283U (en) * | 2012-06-12 | 2013-01-02 | 吴洪学 | Drum-shaped rivet |
| CN203285810U (en) * | 2013-04-22 | 2013-11-13 | 刘晓之 | Penetrating and cutting rivet |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015243A (en) * | 2016-07-05 | 2016-10-12 | 任宝全 | Manufacturing method of gradual thinning structure riveting nail for blind hole |
| CN106122215A (en) * | 2016-09-14 | 2016-11-16 | 航天精工股份有限公司 | A kind of one side is installed and is tapped rivet |
| CN107013545A (en) * | 2017-06-16 | 2017-08-04 | 航天精工股份有限公司 | A kind of self-plugging rivet |
| CN107061456A (en) * | 2017-06-16 | 2017-08-18 | 航天精工股份有限公司 | A kind of high-clamping force Self-locking blind rivet |
| CN107061459A (en) * | 2017-06-16 | 2017-08-18 | 航天精工股份有限公司 | A kind of lock ring internally-arranged type self-plugging rivet |
| CN107202057A (en) * | 2017-06-16 | 2017-09-26 | 航天精工股份有限公司 | A kind of pair of countersunk head blind riveting pumping nail |
| CN110227791A (en) * | 2019-06-25 | 2019-09-13 | 浙江汇聚自动化设备有限公司 | A kind of drift bolt guide frame of straight tube rivet |
| CN110227791B (en) * | 2019-06-25 | 2024-02-09 | 浙江汇聚自动化设备有限公司 | Penetrating nail guiding structure of straight pipe rivet |
| CN111894956A (en) * | 2020-07-15 | 2020-11-06 | 常金华 | High-strength sealing rivet |
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Application publication date: 20160504 |
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| RJ01 | Rejection of invention patent application after publication |