CN2584645Y - Bolt with expansion pin - Google Patents
Bolt with expansion pin Download PDFInfo
- Publication number
- CN2584645Y CN2584645Y CN 02224965 CN02224965U CN2584645Y CN 2584645 Y CN2584645 Y CN 2584645Y CN 02224965 CN02224965 CN 02224965 CN 02224965 U CN02224965 U CN 02224965U CN 2584645 Y CN2584645 Y CN 2584645Y
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- CN
- China
- Prior art keywords
- screw rod
- expansion
- utility
- bolt
- model
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- 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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- Pivots And Pivotal Connections (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model provides an expansion pin screw bolt. The utility model comprises a screw rod, an elastic expansion sleeve, a screw nut, etc. The utility model is characterized in that the screw rod 1 is provided with conicity, an inner hole of the elastic expansion sleeve 2 is also provided with conicity, the conicity is the same as the conicity of the screw rod 1, a round platform 6 which protrudes outwards is arranged on the conical top end face of the expansion sleeve 2, three notches 7 are arranged on the expansion sleeve 2. The three notches all pass through one end of the round platform, wherein, one notch is a through notch. Work pieces can be tightly locked by an alignment after the expansion pin screw bolt is tightly screwed in a work piece connecting hole, any gap is arranged between the work piece connecting hole and the expansion pin screw bolt, dynamic hidden troubles can be eliminated, and the utility model has the advantages of simple structure, convenient operation and high installation work efficiency.
Description
The utility model relates to a kind of bolt, is specifically related to a kind of anti-spacious Bolt with expansion pin.
In daily life, plain bolt is a kind of the most common workpiece connector.But in position that has or occasion, for example on railway,, make spacious the moving of tie point of workpiece and workpiece, be prone to accidents because long-term and strong vibration can make the nut loosening of bolt.There is a kind of " anti-spacious pin " to solve this problem basically.This anti-spacious pin as shown in Figure 3, it mainly is made up of screw rod, nut, resilient bushing and top cap, screw rod 1 ' the bottom one section frustum is arranged, resilient bushing 2 ' two ends are the conical surfaces that have " ten " font mouth, its conical surface respectively with screw rod 1 ' the frustum face and top cap 3 ' the conical surface match.When an anti-spacious pin being inserted in the workpiece connecting hole tight moving nut, lining 3 ' two ends outside distending just, be adjacent to the hole wall of workpiece, make behind the location to be fastenedly connected between workpiece and the workpiece, eliminated spacious degree.Yet find in actual use, this anti-spacious pin after being subjected to the long period vibration, expansion set 2 ' with top cap 3 ' break away from, produced loosening gap, it is not so good to put spacious effect.
In order to solve the deficiency that prior art exists, fundamentally eliminate the loosening gap that bolt is shaken and afterwards produces, the utility model proposes a kind of Bolt with expansion pin, its critical piece comprises screw rod, elastic expansion sleeve and nut etc., the light face bar section of described screw rod 1 is the bar of a band tapering, at the end of thread pinned hole is arranged, the endoporus of elastic expansion sleeve 2 also is the band tapering, its tapering is identical with the tapering of screw rod 1, the vertex of a cone end face of expansion set 2 has a round platform 6 that outwards protrudes, three notches 7 are arranged on the expansion set 2, and these three notches all pass through its round platform end 6, and one of them notch is the groove mouth.
The utility model has the advantages that 1, after Bolt with expansion pin is tightened in the workpiece connecting hole, workpiece can be by stator locking, and between workpiece connecting hole and the Bolt with expansion pin without any the gap, eliminated spacious moving hidden danger; 2, simple in structure, easy to operate, can improve installation efficiency.
The utility model will be further described below in conjunction with accompanying drawing:
Fig. 1 is the axle side schematic diagram of each parts of the utility model:
Fig. 2 is a front section view of the present utility model:
Fig. 3 is the structural representation of anti-spacious pin.
Shown in Fig. 1-2, a kind of Bolt with expansion pin described in the utility model is made up of conical screw 1, elastic expansion sleeve 2, nut 3, cottor pin 4 and elastic washer 5.The light face bar section of conical screw 1 is the bar of a band tapering, at the end of thread pinned hole is arranged, and a round platform is arranged at the bottom of screw rod 1; The endoporus of elastic expansion sleeve 2 also is the band tapering, and its tapering is identical with the tapering of screw rod 1, and the vertex of a cone end face of expansion set 2 has a round platform 6 that outwards protrudes, this round platform and elastic washer 5 are inconsistent, three notches 7 are arranged on the expansion set, and these three notches all pass through its round platform end, and one of them notch is the groove mouth.
During use tapering screw rod 1 and elastic expansion sleeve 2 inserted in the connecting hole of workpiece separately, put on elastic washer 5 tight moving nuts 3 then, after nut is tightened to the position, again cottor pin is inserted in the topped hole of screw rod and get final product.
When tight moving nut 3, elastic expansion sleeve 2 axially loadeds are subjected to the expansive force of screw rod 1 conical surface and the elasticity distending simultaneously, its conical surface inwall is close to the conical surface outer wall of screw rod 1, its outer wall and workpiece hole wall are close to gradually, and when nut 3 was tightened to, whole Bolt with expansion pin and workpiece connecting hole were combined closely.At this moment workpiece is just by stator locking, and all eliminated the gap between workpiece connecting hole and the Bolt with expansion pin.
Claims (1)
1, a kind of Bolt with expansion pin, it comprises screw rod, elastic expansion sleeve and nut, the light face bar section that it is characterized in that described screw rod (1) is the bar of a band tapering, at the end of thread pinned hole is arranged, the endoporus of elastic expansion sleeve (2) also is to be with tapering, and its tapering is identical with the tapering of screw rod (1), the vertex of a cone end face of expansion set (2) has a round platform (6) that outwards protrudes, three notches (7) are arranged on the expansion set (2), and these three notches are all by the round platform end, and one of them notch is the groove mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224965 CN2584645Y (en) | 2002-06-03 | 2002-06-03 | Bolt with expansion pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224965 CN2584645Y (en) | 2002-06-03 | 2002-06-03 | Bolt with expansion pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2584645Y true CN2584645Y (en) | 2003-11-05 |
Family
ID=33702276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02224965 Expired - Fee Related CN2584645Y (en) | 2002-06-03 | 2002-06-03 | Bolt with expansion pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2584645Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192446A (en) * | 2013-03-29 | 2013-07-10 | 佛山市科达石材机械有限公司 | Anti-loosing loop bar connection device |
| CN103817549A (en) * | 2014-03-13 | 2014-05-28 | 南车戚墅堰机车有限公司 | Fixture for milling driving disc |
| CN104289847A (en) * | 2014-10-17 | 2015-01-21 | 昆山韦德机械设备有限公司 | Internal-expanding type bodywork welding clamping fixture |
| CN108857351A (en) * | 2018-09-12 | 2018-11-23 | 北京好运达智创科技有限公司 | Sleeper sleeve intelligence lock pays system |
-
2002
- 2002-06-03 CN CN 02224965 patent/CN2584645Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192446A (en) * | 2013-03-29 | 2013-07-10 | 佛山市科达石材机械有限公司 | Anti-loosing loop bar connection device |
| CN103192446B (en) * | 2013-03-29 | 2016-05-25 | 佛山市科达石材机械有限公司 | Anti-slip cover rod connecting device |
| CN103817549A (en) * | 2014-03-13 | 2014-05-28 | 南车戚墅堰机车有限公司 | Fixture for milling driving disc |
| CN104289847A (en) * | 2014-10-17 | 2015-01-21 | 昆山韦德机械设备有限公司 | Internal-expanding type bodywork welding clamping fixture |
| CN108857351A (en) * | 2018-09-12 | 2018-11-23 | 北京好运达智创科技有限公司 | Sleeper sleeve intelligence lock pays system |
| CN108857351B (en) * | 2018-09-12 | 2023-10-13 | 北京好运达智创科技有限公司 | Intelligent locking system for sleeper sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Xiuwen Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |