CN202612352U - Bolt and nut of anti-disassembly thread connection device - Google Patents
Bolt and nut of anti-disassembly thread connection device Download PDFInfo
- Publication number
- CN202612352U CN202612352U CN 201220154991 CN201220154991U CN202612352U CN 202612352 U CN202612352 U CN 202612352U CN 201220154991 CN201220154991 CN 201220154991 CN 201220154991 U CN201220154991 U CN 201220154991U CN 202612352 U CN202612352 U CN 202612352U
- Authority
- CN
- China
- Prior art keywords
- nut
- bolt
- bolt body
- connection device
- groove
- 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.)
- Expired - Fee Related
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model provides a bolt and a nut of an anti-disassembly thread connection device. The bolt comprises a bolt body, threads are installed on the outer surface of the bolt body, and an axial groove is installed on the outer surface of the bolt body. The nut comprises a nut body, threads of a screw hole in the nut body correspond to the threads on the outer surface of the bolt body, a blocking piece is hinged with a position of the bolt body, wherein the position is inside the bolt body and close to the screw hole, and a spring is installed between the inner side of the blocking piece and the nut body. According to the bolt and the nut, the nut is rotated reversely to be disassembled, the blocking piece bounces to be clamped inside the groove on the bolt body, the nut cannot be rotated reversely, so that the nut cannot be unscrewed down, reliability of connection is improved, and automatic loosening cannot occur even in bad conditions of long-time shake and the like. Besides, the facts that the nut can be unscrewed down through a wrench to enable equipment or supplies inside facilities to be stolen cannot occur, safe accidents are prevented from occurring, and the bolt and the nut are quite suitable for being used for the equipment or the facilities which have anti-thief and safety requirements and do not need disassembling for a long time after being installed.
Description
Technical field
The utility model provides a kind of coupling, bolt, the nut used on especially a kind of threaded connection device.
Background technique
The threaded connection device of being made up of bolt, nut has advantages such as processing is easy, cost of production is low, easy to use, thereby is used widely.But because the detachability of scyewed joint is used it and has also been received certain limitation.As on long-time unserviced field equipment facility, this device is easy to by the human spanner nut backed out or unscrewed from bolt, thereby causes the stolen of goods and materials in equipment or the facility or security incident takes place.Under certain condition such as long-term vibration, nut gets loose easily automatically, thereby security incident and other adverse consequences also can take place.
Summary of the invention
The utility model technical problem to be solved is, bolt, nut on a kind of threaded connection device of anti-dismounting is provided, reliability and Security when using to improve it.
The utility model is achieved in that the bolt on a kind of threaded connection device of anti-dismounting, and it has the body of bolt, and the outer surface of the body of bolt has screw thread, and the outer surface of the body of bolt also has axial groove.
Nut on a kind of threaded connection device of anti-dismounting, it has nut body, and the screw thread of the screw on the nut body is corresponding with the screw thread of body of bolt outer surface, and the position near screw in the body of bolt is hinged with catch, between catch inboard and the nut body spring is installed.
This bolt, nut during use, can be installed together nut body and body of bolt rotation through screw thread.And when desiring the counterrotating nut it being dismantled, catch is upspring, and is stuck in the groove on the body of bolt, makes the nut can not backward rotation, so nut can not be backed out.So just improved the reliability that connects, under mal-conditions such as long-term vibration, also can not get loose automatically.Can be because of can nut not being backed out with spanner yet, and cause the stolen of goods and materials in equipment or the facility, prevented the generation of security incident.Be highly suitable on antitheft, the long-time equipment that no longer need dismantle of safety requirement or installation back or the facility and use.And take off after utilizing the special-purpose disrumpent feelings instrument of nut that nut is destroyed, can accomplish the dismounting of this coupling arrangement.
Description of drawings
Fig. 1 is the schematic representation of the utility model structure.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is the B-B sectional drawing of Fig. 2.
Embodiment
The embodiment who provides below in conjunction with accompanying drawing explains the concrete structure of the utility model.
Shown in accompanying drawing, the bolt on the threaded connection device that a kind of tamper of the utility model is unloaded, it has the body of bolt (1), and the outer surface of the body of bolt has screw thread, and the outer surface of the body of bolt also has axial groove (2).
Groove can have two, is symmetricly set on body of bolt outer surface.
Nut on a kind of threaded connection device of anti-dismounting; It has nut body (3); The screw thread of the screw on the nut body is corresponding with the screw thread of the body of bolt (1) outer surface, and the position near screw in the body of bolt is hinged with catch (4), and spring (5) is installed between catch inboard and the nut body.
The screw thread of the screw on the nut body is corresponding with the screw thread of body of bolt outer surface, and rotation direction, pitch and the helical pitch etc. that are exactly both are all identical.
The shape of groove, the installation form of catch should guarantee that catch is stuck in the groove when the nut backward rotation.Screw thread be generally dextrorotation to, clockwise rotate nut when promptly installing, rotate counterclockwise nut during dismounting, therefore, be used on the groove stop that side of catch is positioned at the right side.Show on the A-A sectional drawing of Fig. 1; The groove profile of screw rod body front is
shape, but not
shape.Certainly, groove also can be the groove of " V " shape or other suitable shapes.Catch, spring are installed in the cavity near screw, the upper and lower projected claw respectively in the left side of catch, and corresponding to the recessed one-tenth shrinkage pool in the position of pawl, catch is that hinge rotates with the pawl on the body of bolt.
When nut forward was rotated (as installing), the non-groove position of body of bolt outer surface overcame the elastic force of spring with catch jack-up, rotates unaffected.But the counterrotating nut, when catch moved to groove, catch was outwards upspring under the effect of spring, was stuck in the groove on the body of bolt, made the nut can not backward rotation.The This move principle of catch, groove is similar with the operating principle of ratchet, detent mechanism.
Claims (2)
1. the bolt on the threaded connection device of an anti-dismounting is characterized in that it has the body of bolt (1), and the outer surface of the body of bolt has screw thread, and the outer surface of the body of bolt also has axial groove (2).
2. the nut on the threaded connection device of an anti-dismounting; It is characterized in that; It has nut body (3); The screw thread of the screw on the nut body is corresponding with the screw thread of the body of bolt (1) outer surface, and the position near screw in the body of bolt is hinged with catch (4), and spring (5) is installed between catch inboard and the nut body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220154991 CN202612352U (en) | 2012-04-06 | 2012-04-06 | Bolt and nut of anti-disassembly thread connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220154991 CN202612352U (en) | 2012-04-06 | 2012-04-06 | Bolt and nut of anti-disassembly thread connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612352U true CN202612352U (en) | 2012-12-19 |
Family
ID=47346054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220154991 Expired - Fee Related CN202612352U (en) | 2012-04-06 | 2012-04-06 | Bolt and nut of anti-disassembly thread connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737128A (en) * | 2019-02-19 | 2019-05-10 | 国家电网有限公司 | Antitheft tightening assembly and removal tool special |
-
2012
- 2012-04-06 CN CN 201220154991 patent/CN202612352U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737128A (en) * | 2019-02-19 | 2019-05-10 | 国家电网有限公司 | Antitheft tightening assembly and removal tool special |
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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: 20121219 Termination date: 20140406 |