CN205350005U - Take self -locking function's bolt - Google Patents
Take self -locking function's bolt Download PDFInfo
- Publication number
- CN205350005U CN205350005U CN201620037492.6U CN201620037492U CN205350005U CN 205350005 U CN205350005 U CN 205350005U CN 201620037492 U CN201620037492 U CN 201620037492U CN 205350005 U CN205350005 U CN 205350005U
- Authority
- CN
- China
- Prior art keywords
- screw thread
- external screw
- thread
- externally threaded
- bolt
- 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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Abstract
The utility model discloses a take self -locking function's bolt, including the screw rod body that sets up the external screw thread, its characterized in that: screw rod body lower part sets up first external screw thread, upper portion sets up the second external screw thread, and first, second external screw thread sets up in succession and has the same pitch, and first external screw thread has the thread size of standard, and the second external screw thread has the thread size bigger than standard thread size, and the screw that the outer cylinder of second external screw thread was offered in the same direction as the hand of spiral cuts off the groove, and the degree of depth that the screw cut off the groove is the same with the tooth height of second external screw thread. The utility model discloses a deformation of second external screw thread realizes bolted connection's self -locking function, guarantees bolted connection's fastening reliability, makes the structure of reliable fastening connection become simpler.
Description
Technical field
This utility model relates to a kind of securing member, is specifically related to a kind of bolt product.
Background technology
In fastener products, the consumption of bolt is maximum, purposes is also the most widely.At present, in bolted fastening occasion, a kind of mode is that bolt is thread directly into screwed hole, and another way is that bolts and nuts coordinate.The available self-locking nut of the connected mode that bolts and nuts coordinate realizes bolted fastening reliability, and the connected mode that bolt is thread directly into screwed hole is difficulty with self-locking, other measure can only be relied on to ensure bolted fastening reliability, and its structure can become complicated.
Summary of the invention
Deficiency in view of background technology, technical problem to be solved in the utility model is to provide one and realizes bolted auto-lock function by the second externally threaded deformation, ensure bolted fastening reliability, make the structure being reliably fastenedly connected become simpler band auto-lock function bolt.
For this, this utility model adopts following scheme to realize:
Bolt with auto-lock function, including arranging externally threaded screw body, it is characterized in that: screw body bottom arranges the first external screw thread, top arranges the second external screw thread, first, second external screw thread arranges continuously and has identical pitch, first external screw thread has the thread size of standard, second external screw thread has the thread size bigger than standard thread size, and the second externally threaded outer cylinder offers the screw thread cutting groove along the hand of spiral, and the degree of depth of screw thread cutting groove is identical with the second externally threaded tooth height.
Adopt the bolt of said structure, when being fastenedly connected, first the first external screw thread passes through screwed hole, then the second external screw thread passes through screwed hole, owing to the second externally threaded thread size is a bit larger tham standard thread size, so the gap between the second external screw thread and screwed hole is substantially free of or a small amount of interference, and the setting due to screw thread cutting groove, the intensity making the second externally threaded ridge becomes more weak, such second external screw thread is when being screwed into screwed hole, extruding due to screwed hole, second externally threaded crest (i.e. Major Diam) there will be suitable deformation, distortion allowance can enter screw thread cutting groove space, so after bolt is tightened, bolt connection will very reliably not have loosening, thus realizing bolted auto-lock function, ensure bolted fastening reliability, and make the structure being reliably fastenedly connected become simpler.It addition, the suitable hand of spiral of screw thread cutting groove is arranged, the second externally threaded crest can be made more yielding, improve deformability, reach better auto-lock function.
As preferably, the second externally threaded Major Diam is sized larger than the first externally threaded Major Diam size, and first, second externally threaded diameter of thread is equivalently-sized.
Accompanying drawing explanation
This utility model has drawings described below:
Fig. 1 is the three-dimensional structure diagram with auto-lock function bolt.
Detailed description of the invention
As shown in the figure, bolt with auto-lock function of the present utility model, including arranging externally threaded screw body, screw body material is mild steel, screw body bottom arranges the first external screw thread 1, top arranges the second external screw thread 3, first, second external screw thread arranges continuously and has identical pitch, first external screw thread 1 has the thread size of standard, second external screw thread 3 has the thread size bigger than standard thread size, concrete structure is: the Major Diam of the second external screw thread 3 is sized larger than the Major Diam size of the first external screw thread 1, and first, second externally threaded diameter of thread is equivalently-sized.The outer cylinder of the second external screw thread 3 offers a plurality of screw thread cutting groove 2 along the hand of spiral, and screw thread cutting groove 2 makes the ridge of the second external screw thread 3 become independent fritter of being separated by, and the degree of depth of screw thread cutting groove 2 is identical with the tooth height of the second external screw thread 3.
Bolt with auto-lock function of the present utility model, when being fastenedly connected, first the first external screw thread passes through screwed hole, then the second external screw thread passes through screwed hole, owing to the second externally threaded thread size is more than standard thread size, so the gap between the second external screw thread and screwed hole is substantially free of or a small amount of interference, and the setting due to screw thread cutting groove, the intensity making the second externally threaded ridge becomes more weak, such second external screw thread is when being screwed into screwed hole, extruding due to screwed hole, second externally threaded crest (i.e. Major Diam) there will be suitable deformation, distortion allowance can enter screw thread cutting groove space, so after bolt is tightened, bolt connection will very reliably not have loosening, thus realizing bolted auto-lock function.
Claims (2)
1. the bolt with auto-lock function, including arranging externally threaded screw body, it is characterized in that: screw body bottom arranges the first external screw thread, top arranges the second external screw thread, first, second external screw thread arranges continuously and has identical pitch, first external screw thread has the thread size of standard, second external screw thread has the thread size bigger than standard thread size, and the second externally threaded outer cylinder offers the screw thread cutting groove along the hand of spiral, and the degree of depth of screw thread cutting groove is identical with the second externally threaded tooth height.
2. the bolt with auto-lock function as claimed in claim 1, it is characterised in that: the second externally threaded Major Diam is sized larger than the first externally threaded Major Diam size, and first, second externally threaded diameter of thread is equivalently-sized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620037492.6U CN205350005U (en) | 2016-01-15 | 2016-01-15 | Take self -locking function's bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620037492.6U CN205350005U (en) | 2016-01-15 | 2016-01-15 | Take self -locking function's bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205350005U true CN205350005U (en) | 2016-06-29 |
Family
ID=56175237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620037492.6U Expired - Fee Related CN205350005U (en) | 2016-01-15 | 2016-01-15 | Take self -locking function's bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205350005U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485139A (en) * | 2016-01-15 | 2016-04-13 | 瑞安市威孚标准件有限公司 | Bolt with self-locking function |
| CN108661572A (en) * | 2018-07-24 | 2018-10-16 | 江苏拓创科研仪器有限公司 | A kind of connection fastening type oil drill rocker |
| KR102116721B1 (en) * | 2019-03-28 | 2020-05-29 | 주식회사 와이비지테크 | Anchor for insert |
-
2016
- 2016-01-15 CN CN201620037492.6U patent/CN205350005U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485139A (en) * | 2016-01-15 | 2016-04-13 | 瑞安市威孚标准件有限公司 | Bolt with self-locking function |
| CN108661572A (en) * | 2018-07-24 | 2018-10-16 | 江苏拓创科研仪器有限公司 | A kind of connection fastening type oil drill rocker |
| KR102116721B1 (en) * | 2019-03-28 | 2020-05-29 | 주식회사 와이비지테크 | Anchor for insert |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20190115 |