CN201973050U - Stop screw - Google Patents
Stop screw Download PDFInfo
- Publication number
- CN201973050U CN201973050U CN2011200360776U CN201120036077U CN201973050U CN 201973050 U CN201973050 U CN 201973050U CN 2011200360776 U CN2011200360776 U CN 2011200360776U CN 201120036077 U CN201120036077 U CN 201120036077U CN 201973050 U CN201973050 U CN 201973050U
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- CN
- China
- Prior art keywords
- hole section
- screw
- cone shape
- shape hole
- center
- 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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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
A stop screw belongs to a fastener, is mostly used for fastening and comprises a screw body. The screw body is provided with an inner cavity consisting of a threaded hole section and a conical hole section, the conical hole section is located at the tail of the screw body, a plurality of axial slots are uniformly distributed on the peripheral wall of the conical hole section, the threaded hole section is located at the top of the conical hole section and is coaxial with the conical hole section, a center rod is connected into the threaded hole section in an upward and downward moving manner, a recess is arranged at the top of the center rod, a wrench can be inserted into the recess, and a conical head which matches with the conical hole section is disposed at the bottom of the center rod. The stop screw is better in stop effect.
Description
Technical field:
The utility model relates to a kind of fastening piece, specifically is a kind of backing-up screw.
Background technique:
Screw is used for fastening occasion, and what at first will solve is exactly the locking problem of moving back.It is locking in addition that existing screw relies on plain cushion and spring pad usually, in other words, before the tapped hole on screw is packed part into, at first need plain cushion and spring pad are nested on the screw rod of screw, be screwed into screw rod then, after treating that screw rod is screwed in the through hole fully, screw head will the extrusion spring pad, make spring pad produce distortion, thereby reach the purpose that prevents that the screw pine from moving back, though above-mentioned plain cushion and spring pad have the effect that prevents that the screw pine from moving back, but in actual application, the locking effect of moving back of plain cushion and spring pad still is not very desirable, and when being subjected to than strong vibration for a long time when screw, screw still exists the risk that pine moves back takes place.
The model utility content:
The technical problems to be solved in the utility model is that a kind of locking backing-up screw that moves back better effects if is provided.
Technical solution of the present utility model is, provide a kind of backing-up screw: comprise screw body with following structure, wherein, screw body is by the inner chamber of being made up of tapped hole section and cone shape hole section, the cone shape hole section is positioned at the screw body afterbody, be evenly equipped with a plurality of axially grooved on the cone shape hole section perisporium, the tapped hole section is positioned at cone shape hole section top and coaxial with the cone shape hole section, the center-pole that is connected with moving up and down in the tapped hole section, central post top portion is provided with the shrinkage pool that inserts for spanner, and the center-pole bottom is provided with the conical head that matches with the cone shape hole section.
Backing-up screw described in the utility model, wherein, axially grooved quantity can be 2～8.
Backing-up screw described in the utility model, wherein, axially grooved quantity can be 3 or 4 or 5 or 6.
After adopting above structure, compared with prior art, the utility model backing-up screw has the following advantages: unlike the prior art, the utility model screw body inner chamber is made up of tapped hole section and cone shape hole section, and be evenly equipped with a plurality of axially grooved on the cone shape hole section perisporium, the center-pole bottom is provided with the conical head that matches with the cone shape hole section, therefore, after in the through hole on the utility model backing-up screw is packed part into, the user can pass through spanner center of rotation bar, center-pole is moved up along axis, in the process that center-pole moves, conical head also can and then move, and radial expansion takes place under the effect of conical head the cone shape hole Duan Zehui of this moment, in other words, the diameter of cone shape hole section can become big under the effect of conical head, by this locking structure of moving back, move back even the utility model backing-up screw when being subjected to than strong vibration for a long time pine can't be taken place also, thereby reach the comparatively ideal locking effect of moving back.
Description of drawings:
Fig. 1 is the stereochemical structure profile schematic representation of the utility model backing-up screw;
Fig. 2 is the sectional structure schematic representation along " A-A " line among Fig. 1.
Embodiment:
Below in conjunction with the drawings and specific embodiments the utility model backing-up screw is described in further detail:
As depicted in figs. 1 and 2, in this embodiment, the utility model backing-up screw comprises screw body 2, screw body 2 is by the inner chamber of being made up of tapped hole section 1 and cone shape hole section 5, cone shape hole section 5 is positioned at screw body 2 afterbodys, be evenly equipped with 3 axially grooved 3 on cone shape hole section 5 perisporiums, per 120 ° one, tapped hole section 1 is positioned at cone shape hole section 5 tops and coaxial with cone shape hole section 5, the center-pole 6 that is connected with moving up and down in the tapped hole section 1, in other words, center-pole 6 is provided with the outside thread that matches with tapped hole section 1, and center-pole 6 can move up and down with tapped hole section 1 by outside thread and be connected.Center-pole 6 tops are provided with the hexagonal shrinkage pool 7 that inserts for the hexagon wrench (not shown), and center-pole 6 bottoms are provided with the conical head 4 that matches with cone shape hole section 5, and conical head 4 is as a whole with center-pole 6.
The using method of the utility model backing-up screw is: after the through hole (not shown) on the utility model backing-up screw is packed part into, the user can come center of rotation bar 6 by hexagon wrench, center-pole 6 is moved up along axis, in the process that center-pole 6 moves, conical head 4 also can and then move up, radial expansion then can take place in the cone shape hole section 5 of this moment under the effect of conical head 4, in other words, the diameter of cone shape hole section 5 can become big under the effect of conical head 4, by this locking structure of moving back, the utility model backing-up screw has reached the comparatively ideal locking effect of moving back.
Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (3)
1. backing-up screw, comprise screw body (2), it is characterized in that: described screw body (2) has the inner chamber of being made up of tapped hole section (1) and cone shape hole section (5), described cone shape hole section (5) is positioned at screw body (2) afterbody, be evenly equipped with a plurality of axially grooved (3) on described cone shape hole section (5) perisporium, described tapped hole section (1) is positioned at cone shape hole section (5) top and coaxial with cone shape hole section (5), the center-pole (6) that is connected with moving up and down in the described tapped hole section (1), described center-pole (6) top is provided with the shrinkage pool (7) that inserts for spanner, and described center-pole (6) bottom is provided with the conical head (4) that matches with cone shape hole section (5).
2. backing-up screw according to claim 1 is characterized in that: the quantity of described axially grooved (3) is 2～8.
3. backing-up screw according to claim 2 is characterized in that: the quantity of described axially grooved (3) is 3 or 4 or 5 or 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200360776U CN201973050U (en) | 2011-01-28 | 2011-01-28 | Stop screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200360776U CN201973050U (en) | 2011-01-28 | 2011-01-28 | Stop screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201973050U true CN201973050U (en) | 2011-09-14 |
Family
ID=44578153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200360776U Expired - Fee Related CN201973050U (en) | 2011-01-28 | 2011-01-28 | Stop screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201973050U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410295A (en) * | 2011-11-17 | 2012-04-11 | 中铁十五局集团有限公司 | Pull-type self-locking bolt |
| CN106015265A (en) * | 2016-06-03 | 2016-10-12 | 河南科技大学 | Internal screw for check bolt, and check bolt assembly |
| CN106884848A (en) * | 2017-04-21 | 2017-06-23 | 绵竹市凯瑞机械加工有限公司 | Retaining element screw retention method |
| CN108119505A (en) * | 2016-11-29 | 2018-06-05 | 中车大同电力机车有限公司 | A kind of bolt connecting device |
| CN111306162A (en) * | 2018-12-12 | 2020-06-19 | 天津卓帛科技发展有限公司 | Automobile locking screw |
-
2011
- 2011-01-28 CN CN2011200360776U patent/CN201973050U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410295A (en) * | 2011-11-17 | 2012-04-11 | 中铁十五局集团有限公司 | Pull-type self-locking bolt |
| CN106015265A (en) * | 2016-06-03 | 2016-10-12 | 河南科技大学 | Internal screw for check bolt, and check bolt assembly |
| CN108119505A (en) * | 2016-11-29 | 2018-06-05 | 中车大同电力机车有限公司 | A kind of bolt connecting device |
| CN106884848A (en) * | 2017-04-21 | 2017-06-23 | 绵竹市凯瑞机械加工有限公司 | Retaining element screw retention method |
| CN111306162A (en) * | 2018-12-12 | 2020-06-19 | 天津卓帛科技发展有限公司 | Automobile locking screw |
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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 |
Granted publication date: 20110914 Termination date: 20130128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |