CN2881185Y - Concentric variable thread high strength loose-proof antitheft bolt - Google Patents
Concentric variable thread high strength loose-proof antitheft bolt Download PDFInfo
- Publication number
- CN2881185Y CN2881185Y CN 200520144478 CN200520144478U CN2881185Y CN 2881185 Y CN2881185 Y CN 2881185Y CN 200520144478 CN200520144478 CN 200520144478 CN 200520144478 U CN200520144478 U CN 200520144478U CN 2881185 Y CN2881185 Y CN 2881185Y
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- China
- Prior art keywords
- bolt
- self
- movable cam
- lock rod
- high strength
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- Expired - Fee Related
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Abstract
The utility model discloses a concentric variable thread high strength loose-proof antitheft bolt, which comprises a shank of bolt and a nut, a through-hole is installed in the centre of the shank of bolt; a step-like groove is installs on the plate of the shank of the bolt, wherein a thread sleeve, a pressure spring, a movable cam and a tight concave wheel are installed in orders from top to down; a self-lock disk is installed at one end of the self-lock rod, a left-arm folding thread is installed on the self-lock rod, the cooperative threads are installed in the through-hole of the shank of bolt and on the inner wall of the thread sleeve, then a special tool is used to press the movable cam to make the boss on the movable cam be separated from the corresponding groove on the tight concave wheel and rotate 20 degrees to 45 degrees angle in clockwise, so that the utility model do not loosen by the occlusion of the concave-convex gear and realize the self-lock function absolutely, also realize the secondary anti-looseness under the action of the action of the thread sleeve.
Description
Technical field
The utility model relates to a kind of fastening piece, the especially a kind of concentric change button high strength loosing and theft preventing bolt that can discharge under concentric.
Background technique
In fastening piece commonly used, bolt is a kind of purposes fastening piece very widely.As aspect the railway transport, continuous speed-raising along with railway locomotive, locomotive and compartment are in operation and often are in a kind of strong vibration, particularly when compartment goods heavy service, the gear-box of locomotive and the clamping bolt of traction electric machine are because weight and strong vibration meeting constantly take place loosening, spindle nose bolt on the vehicle, often come off especially, seriously influenced the normal operation in locomotive and compartment, increase potential safety hazard, often caused the replacing of auxiliary material, wasted material widely, increase maintenance workload, reduced the economic benefit of railway and relevant departments.The stolen situation of the field equipment of electric power system also happens occasionally in addition, stolen as transformer, the stolen of high voltage line iron tower angle bar and link happens occasionally especially, and cable robbery accident hidden danger such as oil field, municipal administration, Tie Tong, Netcom, the communication of telecommunications army are more serious.Mostly there is this type of problem in other all trades and professions.So far, also there are not fine or quite reasonable locking, anti-theft bolt.
Summary of the invention
It is more reasonable that the purpose of this utility model provides a kind of structure, and easily manufactured, performance becomes button high strength loosing and theft preventing bolt more reliably with one heart.It has overcome the deficiency that prior art exists.
The purpose of this utility model is achieved in that it includes the body of bolt and nut, described body of bolt center is provided with through hole, on the unwarranted charge of the body of bolt, be provided with the ladder-type groove, swivel nut is installed in it from bottom to top successively, pressure spring, movable cam and anchor wheel, described self-lock rod passes above-mentioned parts successively and stretches out outside the body of bolt, one end of self-lock rod is provided with from lock collar, described self-lock rod is provided with left side button screw thread, on the inwall of the through hole of the body of bolt and swivel nut, be respectively equipped with screw thread with left side button threads engaged, circumferentially be provided with groove on the surface of contact of described anchor wheel and movable cam, movable cam is provided with the boss that matches with above-mentioned groove.
Described self-lock rod and its end integrally manufactured from lock collar forms the self-locking gap between the lock collar and the body of bolt.
Described anchor wheel in be provided with through hole in the heart, the movable cam center is provided with interior hexagonal hole, the diameter of anchor wheel is greater than the diameter of movable cam.
One end of described self-lock rod is provided with little six square toes, the other end be provided with the screw thread identical from lock collar with body of bolt outside thread.
Because the utility model adopted said structure, compared with prior art have the following advantages: structure is more reasonable, and is easily manufactured, performance is more reliable; Have compensate function under the situation that axle power reduces, the gap of discharging between the bolts and nuts under concentric reaches locking, the antitheft purpose of self-locking; Do not need to increase axle power during installation and can realize lockingly, load and unload easy to usely freely, guarantee in judder, can not become flexible; Safe and reliable, and can reuse.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a body of bolt structural representation of the present utility model;
Fig. 2 is that the body of bolt of the present utility model is locked the back structural representation in nut.
Among the figure: 1. the body of bolt; 2. nut; 3. movable cam; 4. swivel nut; 5. pressure spring; 6. from lock collar; 7. self-locking gap; 8. screw thread is detained on a left side; 9. ladder-type groove; 10. anchor is taken turns; 11. groove; 12. boss; 13. self-lock rod.
Embodiment
Bolt of the present utility model includes: the body of bolt 1, self-lock rod 13 and with from lock collar 6, be axially arranged with concentric screw in the body of bolt 1, to be left side button fine thread be used for adjusting self-locking and release with self-lock rod 13 corresponding positions from lock collar 6 one have also that fine thread is complementary to the screw thread in the screw.In order to realize that double insurance has added a swivel nut 4 that is complementary with self-lock rod left side button screw thread 8 on self-lock rod 13 bodies of rod, be used for realizing that secondary is locking.
Anchor wheel 10 is provided with through hole, and movable cam 3 slides up and down with the little six sides coupling of self-lock rod 13.Closely-pitched left side button swivel nut 4, pressure spring 5 and self-lock rod 13 and connecting body from lock collar 6.The top of self-lock rod 13 be provided with little hexahedron and fine thread and from lock collar 6 for being made into integration.Fine thread is a left side button, and in ladder-type groove 9, pressure spring communicates with screw is coaxial, and anchor wheel 10 and movable cam 3 are provided with hexagon ring at the center of cam, and the external diameter of movable cam 3 is less than the diameter of anchor wheel 10.The closely-pitched left side button screw thread that also is provided with on the body of bolt 1 inwall on left side button fine thread and the self-lock rod 13 is complementary, have self-lock rod 13 spinnings from lock collar 6 like this in the body of bolt 1, pack into successively swivel nut 4, pressure spring 5, movable cam 3, refill anchor wheel 10, their all coaxial being installed together, adjust self-locking gap 7 after installing, make self-locking screw.
Be tightened on nut or the equipment with the same axle power of plain bolt in use, pressing movable cam 3 with special tool then makes the boss 12 on it take turns corresponding groove 11 disengagements on 10 with anchor, by 20 °-45 ° of dextrorotation gyrations, take out special tool, movable cam 3 is got back to the home position under the effect of pressure spring 5, groove 11 on boss 12 on it and the anchor wheel 10 interlock is mutually realized self-locking, like this will never Hui Song under the interlock of concavo-convex gear wheel, realized under the effect of swivel nut 4 that again second road is locking.Using same special tool to depress movable cam 3 along little six square toes of self-lock rod 13 upper ends when needing release twists go back to the home position with self-lock rod 13 and unloads the king-bolt body, realization release purpose.Discharge the gap of the body of bolt 1 and nut 2 one sides when when 2 lockings of the body of bolt 1 and nut, mainly being screwed into nut 2 by the body of bolt 1, simultaneously again self-lock rod 13 with under the effect of lock collar 6 between the discharge body of bolt 1 and the nut 2 gap of opposite side realize the purpose of self-locking.Little six square toes of self-lock rod 13 are made nonstandard side's body when needs are antitheft, must realize antitheft purpose completely with the release of nonstandard spanner ability like this.
Claims (4)
1. the concentric button high strength that becomes is loosened anti-theft bolt, include the body of bolt (1) and nut (2), it is characterized in that: the described body of bolt (1) center is provided with through hole, on the unwarranted charge of the body of bolt (1), be provided with ladder-type groove (9), swivel nut (4) is installed in it from bottom to top successively, pressure spring (5), movable cam (3) and anchor wheel (10), described self-lock rod (13) passes above-mentioned parts successively and stretches out outside the body of bolt (1), one end of self-lock rod (13) is provided with from lock collar (6), described self-lock rod (13) is provided with left side button screw thread (8), on the inwall of the through hole of the body of bolt (1) and swivel nut (4), be respectively equipped with the screw thread that matches with left side button screw thread (8), circumferentially be provided with groove (11) on the surface of contact of described anchor wheel (10) and movable cam (3), movable cam (3) is provided with the boss (12) that matches with above-mentioned groove (11).
2. concentric change button high strength according to claim 1 is loosened anti-theft bolt, it is characterized in that: described self-lock rod (13) is integrally manufactured from lock collar (6) with its end, forms self-locking gap (7) between the lock collar (6) and the body of bolt (1).
3. concentric change button high strength according to claim 1 is loosened anti-theft bolt, it is characterized in that: be provided with through hole in the heart in the described anchor wheel (10), movable cam (3) center is provided with interior hexagonal hole, and the diameter of anchor wheel (10) is greater than the diameter of movable cam (3).
4. concentric change button high strength according to claim 1 is loosened anti-theft bolt, and it is characterized in that: an end of described self-lock rod (13) is provided with little six square toes, being provided with and the identical screw thread of the body of bolt (1) outside thread from lock collar (6) of the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520144478 CN2881185Y (en) | 2005-12-19 | 2005-12-19 | Concentric variable thread high strength loose-proof antitheft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520144478 CN2881185Y (en) | 2005-12-19 | 2005-12-19 | Concentric variable thread high strength loose-proof antitheft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2881185Y true CN2881185Y (en) | 2007-03-21 |
Family
ID=37881025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520144478 Expired - Fee Related CN2881185Y (en) | 2005-12-19 | 2005-12-19 | Concentric variable thread high strength loose-proof antitheft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2881185Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088379A (en) * | 2018-08-08 | 2018-12-25 | 扬州鑫宝利金属制品有限公司 | Pre-hinged catenarian cable cleat |
| CN109268377A (en) * | 2018-11-27 | 2019-01-25 | 贵州航太精密制造有限公司 | A kind of Self-locking screw nut and its connection bolt |
| CN109707722A (en) * | 2019-02-28 | 2019-05-03 | 海盐嘉海五金有限公司 | A kind of automotive hub connection bolt |
| CN112664540A (en) * | 2020-12-24 | 2021-04-16 | 浙江天元金属制品股份有限公司 | Multifunctional screw |
-
2005
- 2005-12-19 CN CN 200520144478 patent/CN2881185Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088379A (en) * | 2018-08-08 | 2018-12-25 | 扬州鑫宝利金属制品有限公司 | Pre-hinged catenarian cable cleat |
| CN109268377A (en) * | 2018-11-27 | 2019-01-25 | 贵州航太精密制造有限公司 | A kind of Self-locking screw nut and its connection bolt |
| CN109707722A (en) * | 2019-02-28 | 2019-05-03 | 海盐嘉海五金有限公司 | A kind of automotive hub connection bolt |
| CN109707722B (en) * | 2019-02-28 | 2023-12-26 | 海盐嘉海五金有限公司 | Automobile hub connecting bolt |
| CN112664540A (en) * | 2020-12-24 | 2021-04-16 | 浙江天元金属制品股份有限公司 | Multifunctional screw |
| CN112664540B (en) * | 2020-12-24 | 2022-07-01 | 浙江天元金属制品股份有限公司 | Multifunctional screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070321 Termination date: 20100119 |