CN203809474U - Anti-disengaging bolt assembly for bridge - Google Patents
Anti-disengaging bolt assembly for bridge Download PDFInfo
- Publication number
- CN203809474U CN203809474U CN201420201081.7U CN201420201081U CN203809474U CN 203809474 U CN203809474 U CN 203809474U CN 201420201081 U CN201420201081 U CN 201420201081U CN 203809474 U CN203809474 U CN 203809474U
- Authority
- CN
- China
- Prior art keywords
- rod
- bolt assembly
- nut
- screw
- bridge
- 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 - Lifetime
Links
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Connection Of Plates (AREA)
Abstract
The utility model relates to an anti-disengaging bolt assembly for a bridge. The bolt assembly has the advantages that the bolt assembly does not disengage easily, the structure is simple, and using is convenient. According to the technical scheme, the anti-disengaging bolt assembly for the bridge comprises a head and a screw, and a nut is fixed on the screw. The bolt assembly is characterized in that an anti-disengaging rod is fixed to the end of the screw through threads, the end of the anti-disengaging rod abuts against the end face of the nut, and a threaded hole connected with the anti-disengaging rod is formed in the end of a bolt and is arranged along the axis of the bolt; the anti-disengaging rod is provided with a threaded rod, a cross rod and a long rod which are formed integrally, the threaded rod is matched with and connected with the threaded hole, the long rod is located outside the screw, one end of the long rod is connected with the threaded rod through the cross rod, the other end of the long rod abuts against the end face of the nut, the long rod abuts against the end face of the nut through a disc, and the thread direction of the threaded hole is identical with the thread direction of the threaded rod, and is identical with or opposite to the thread direction of the screw.
Description
Technical field
The utility model relates to bolt technical field, is specifically related to the Anti-loose bolt assembly that a kind of bridge is used.
Background technique
In great majority application, bolt is all used in break-through screw, and the pretightening force that relies on fastening piece to tighten generation plays the effect that keeps structural integrity.If fastening piece is from loosening, pretightening force will weaken or disappear, and this will directly cause structure to connect inefficacy.In bridge works, due to reasons such as the vehicle dealing of bridge floor and surface subsidence, shake comparatively frequently, can produce larger axial force and shearing force, thus between bolts and nuts, easily occur loosening, the generation of the accident causing, this problem waits to solve.
Model utility content
The purpose of this utility model is the deficiency overcoming in above-mentioned background technology, the Anti-loose bolt assembly that provides a kind of bridge to use, this bolt assembly should have be difficult for getting loose, feature simple in structure, easy to use.
For realizing above object, the utility model has adopted following technological scheme:
The Anti-loose bolt assembly that bridge is used, comprises head and screw rod, is fixed wtih nut on screw rod, it is characterized in that: the end of described screw rod is fixed with an anti-drop rod by screw thread, and the end of this anti-drop rod is resisted against the end face of nut.
The end of described bolt offers the tapped hole being connected with anti-drop rod, and tapped hole is along the axis arranged of bolt.
Described anti-drop rod has integrated threaded stem, cross bar and stock, and described threaded stem and tapped hole are connected, and stock is positioned at the outside of screw rod, and one end of stock is connected with threaded stem by described cross bar, and the other end is resisted against the end face of described nut.
Described stock is resisted against the end face of described nut by disk.
Described tapped hole is identical with the hand of spiral of threaded stem, identical with screw flight direction or contrary.
The beneficial effects of the utility model are: the utility model is fixed with anti-drop rod in the end of screw rod, by anti-drop rod, push against nut, prevent that nut is axially being subjected to displacement, thereby can effectively avoid nut and bolt to get loose, during use, only anti-drop rod need be tightened on to the end of screw rod, easy to use, simple in structure, fabricating cost is also cheaper.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model is not limited to following examples.
As shown in Figure 1, the Anti-loose bolt assembly that a kind of bridge is used, comprises head 1 and screw rod 2, is fixed wtih nut 3 on screw rod, and the end of described screw rod is fixed with an anti-drop rod by screw thread, and the end of this anti-drop rod is resisted against nut away from the end face of head.
The end of described bolt offers the tapped hole 8 being connected with anti-drop rod, and tapped hole is along the axis arranged of bolt.Described anti-drop rod has integrated threaded stem 7, cross bar 6 and stock 5, and described threaded stem and tapped hole are connected, and stock is positioned at the outside of screw rod, and one end of stock is connected with threaded stem by described cross bar, and the other end is resisted against the end face of described nut.
Described stock is resisted against the end face (enlarge active surface increases stability) of described nut by disk 4, this disk and stock are one-body molded, and disk, stock, cross bar, threaded stem can adopt metal to make, for example stainless steel.
Described tapped hole is identical with the hand of spiral of threaded stem, identical with screw flight direction or contrary; Be that screw rod is plus thread, screw and threaded stem are plus thread or are left-hand thread.
During use, can be according to nut the position at threaded stem, decide the threaded stem of anti-drop rod to screw in the length in tapped hole, guarantee that the end of stock is resisted against the end face of nut.
Claims (5)
1. the Anti-loose bolt assembly that bridge is used, comprise head (1) and screw rod (2), on screw rod, be fixed wtih nut (3), it is characterized in that: the end of described screw rod is fixed with an anti-drop rod by screw thread, the end of this anti-drop rod is resisted against the end face of nut.
2. the Anti-loose bolt assembly that a kind of bridge according to claim 1 is used, is characterized in that: the end of described bolt offers the tapped hole (8) being connected with anti-drop rod, and tapped hole is along the axis arranged of bolt.
3. the Anti-loose bolt assembly that a kind of bridge according to claim 2 is used, it is characterized in that: described anti-drop rod has integrated threaded stem (7), cross bar (6) and stock (5), described threaded stem and tapped hole are connected, stock is positioned at the outside of screw rod, one end of stock is connected with threaded stem by described cross bar, and the other end is resisted against the end face of described nut.
4. the Anti-loose bolt assembly that a kind of bridge according to claim 2 is used, is characterized in that: described stock is resisted against the end face of described nut by disk (4).
5. the Anti-loose bolt assembly that a kind of bridge according to claim 4 is used, is characterized in that: described tapped hole is identical with the hand of spiral of threaded stem, identical with screw flight direction or contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201081.7U CN203809474U (en) | 2014-04-21 | 2014-04-21 | Anti-disengaging bolt assembly for bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201081.7U CN203809474U (en) | 2014-04-21 | 2014-04-21 | Anti-disengaging bolt assembly for bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809474U true CN203809474U (en) | 2014-09-03 |
Family
ID=51448231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420201081.7U Expired - Lifetime CN203809474U (en) | 2014-04-21 | 2014-04-21 | Anti-disengaging bolt assembly for bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809474U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482022A (en) * | 2014-12-19 | 2015-04-01 | 苏州市淞舜五金有限公司 | Novel automatic lock bolt |
| CN108194485A (en) * | 2018-01-15 | 2018-06-22 | 瑞安市友邦标准件有限公司 | A kind of fastening locking mechanism |
| CN114542577A (en) * | 2022-02-28 | 2022-05-27 | 杭州嘉翔高强螺栓股份有限公司 | High-strength type curved bar anti-loosening fastener |
-
2014
- 2014-04-21 CN CN201420201081.7U patent/CN203809474U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482022A (en) * | 2014-12-19 | 2015-04-01 | 苏州市淞舜五金有限公司 | Novel automatic lock bolt |
| CN108194485A (en) * | 2018-01-15 | 2018-06-22 | 瑞安市友邦标准件有限公司 | A kind of fastening locking mechanism |
| CN114542577A (en) * | 2022-02-28 | 2022-05-27 | 杭州嘉翔高强螺栓股份有限公司 | High-strength type curved bar anti-loosening fastener |
| CN114542577B (en) * | 2022-02-28 | 2023-12-08 | 杭州嘉翔高强螺栓股份有限公司 | High-strength type bent rod anti-loosening fastener |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311251, Zhejiang province Hangzhou city Xiaoshan District evolution Town Wang Village Patentee after: HANGZHOU JIAXIANG GAOQIANG BOLTS CO.,LTD. Address before: 311251, Zhejiang province Hangzhou city Xiaoshan District evolution Town Wang Village Patentee before: HANGZHOU JIAXIANG HIGH STRENGTH BOLTS CO.,LTD. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
|
| CX01 | Expiry of patent term |