CN203189454U - Elastic-clamp-type drop-proof expansion screw - Google Patents
Elastic-clamp-type drop-proof expansion screw Download PDFInfo
- Publication number
- CN203189454U CN203189454U CN 201320080382 CN201320080382U CN203189454U CN 203189454 U CN203189454 U CN 203189454U CN 201320080382 CN201320080382 CN 201320080382 CN 201320080382 U CN201320080382 U CN 201320080382U CN 203189454 U CN203189454 U CN 203189454U
- Authority
- CN
- China
- Prior art keywords
- screw
- draw
- elastic
- nail
- grooves
- 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
Links
Images
Landscapes
- Clamps And Clips (AREA)
Abstract
The utility model discloses an elastic-clamp-type drop-proof expansion screw which comprises a screw body and a screw sleeve. An expansion hole which allows the screw body to penetrate through is formed inside the screw sleeve, the lower portion of the expansion hole contracts towards the central position of the expansion hole to form a big-end-up conical hole, a plurality of arc-shaped clamping grooves are formed in the lateral wall of the screw body, a plurality of elastic clamps which correspond to the clamping grooves are arranged on the inner wall of the expansion hole, the elastic clamps are formed by elastic metal strips being bent, and the two ends of each metal strip are both fixedly connected with the inner wall of the screw sleeve. By the adoption of the technical scheme, the purpose of preventing the screw from loosening is realized through the mutual clamping matching of the elastic clamps and the clamping grooves, and therefore the expansion screw is longer in service life and better in fastening effect.
Description
Technical field
The utility model belongs to technical field of fastening, is specifically related to a kind of spring-gripping type anticreep expandable nail.
Background technique
Expandable nail in the market is to be made of screw and outside nail cover thereof, realize the change of nail cover volume by screw and the change of nail cover relative position, to reach fixing purpose, but existing expandable nail does not have locating function, after long-time the use, be easy to become flexible because of dislocation between screw and the nail cover, thereby make it lose the function of fastening location.
Summary of the invention
Technical problem to be solved in the utility model is at above-mentioned the deficiencies in the prior art, and a kind of spring-gripping type anticreep expandable nail is provided, and it can effectively prevent becoming flexible between screw and the nail cover.
The technological scheme that the utility model adopts is: a kind of spring-gripping type anticreep expandable nail, comprise screw and nail cover, be provided with the inflation port that penetrates for screw in the described nail cover, described inflation port bottom is shunk to its central position and is formed a up big and down small cone shape hole, the sidewall of described screw is provided with a plurality of circular-arc draw-in grooves, the corresponding only elasticity card of coupling of a plurality of and above-mentioned draw-in groove card that is provided with on the described inflation port inwall, this elasticity card is to be formed by the bending of rubber-like metal bar, all fixedlys connected with the inwall of described nail cover in the two ends of this metal bar.
As preferably, described screw sidewall is provided with three groups of draw-in grooves from top to bottom altogether, and each group draw-in groove all is along evenly distributed the forming of screw sidewall circumferencial direction by a plurality of draw-in grooves.
As preferably, described elasticity card is one-body molded with the nail cover.
The beneficial effects of the utility model are: because the utility model adopts such scheme, the mutual card by elasticity card and draw-in groove ends cooperating to be realized preventing the purpose of screw loosening, thereby makes the longer service life of expandable nail of the present utility model, fastening better effects if.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1, screw; 2, nail cover; 3, inflation port; 4, cone shape hole; 5, draw-in groove; 6, elasticity card.
Embodiment
Below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in further detail.
As shown in Figure 1, a kind of spring-gripping type anticreep expandable nail, comprise screw 1 and nail cover 2, be provided with the inflation port 3 that penetrates for screw 1 in the described nail cover 2, described inflation port 3 bottoms are shunk to its central position and are formed a up big and down small cone shape hole 4, the sidewall of described screw 1 is provided with a plurality of circular-arc draw-in grooves 5, described screw 1 sidewall is provided with three groups of draw-in grooves 5 from top to bottom altogether, each group draw-in groove 5 all is that the sidewall circumferencial direction is evenly distributed forms along screw 1 by a plurality of draw-in grooves 5, the corresponding only elasticity card 6 of coupling of a plurality of and above-mentioned draw-in groove 5 cards that is provided with on described inflation port 3 inwalls, described elasticity card 6 is one-body molded with nail cover 2, this elasticity card 6 is to be formed by the bending of rubber-like metal bar, all fixedlys connected with the inwall of described nail cover 2 in the two ends of this metal bar.
Because the utility model adopts such scheme, the mutual card by elasticity card 6 and draw-in groove 5 ends and cooperates the purpose that realizes preventing that screw 1 is loosening, thereby makes the longer service life of expandable nail of the present utility model, fastening better effects if.
The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented with this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (3)
1. spring-gripping type anticreep expandable nail, comprise screw (1) and nail cover (2), be provided with the inflation port (3) that penetrates for screw (1) in the described nail cover (2), described inflation port (3) bottom is shunk to its central position and is formed a up big and down small cone shape hole (4), it is characterized in that: the sidewall of described screw (1) is provided with a plurality of circular-arc draw-in grooves (5), correspondence is provided with the only elasticity card (6) of coupling of a plurality of and above-mentioned draw-in groove (5) card on described inflation port (3) inwall, this elasticity card (6) is to be formed by the bending of rubber-like metal bar, all fixedlys connected with the inwall of described nail cover (2) in the two ends of this metal bar.
2. spring-gripping type anticreep expandable nail according to claim 1, it is characterized in that: described screw (1) sidewall is provided with three groups of draw-in grooves (5) from top to bottom altogether, and each group draw-in groove (5) all is along evenly distributed the forming of screw (1) sidewall circumferencial direction by a plurality of draw-in grooves (5).
3. spring-gripping type anticreep expandable nail according to claim 1 is characterized in that: described elasticity card (6) is one-body molded with nail cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320080382 CN203189454U (en) | 2013-02-21 | 2013-02-21 | Elastic-clamp-type drop-proof expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320080382 CN203189454U (en) | 2013-02-21 | 2013-02-21 | Elastic-clamp-type drop-proof expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203189454U true CN203189454U (en) | 2013-09-11 |
Family
ID=49106316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320080382 Expired - Fee Related CN203189454U (en) | 2013-02-21 | 2013-02-21 | Elastic-clamp-type drop-proof expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203189454U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387610A (en) * | 2017-07-12 | 2017-11-24 | 浙江工贸职业技术学院 | A kind of automotive brake disc |
| CN109349942A (en) * | 2018-10-18 | 2019-02-19 | 陈姿璇 | A kind of anti-dropout hingle and its anti-dropout method |
-
2013
- 2013-02-21 CN CN 201320080382 patent/CN203189454U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387610A (en) * | 2017-07-12 | 2017-11-24 | 浙江工贸职业技术学院 | A kind of automotive brake disc |
| CN109349942A (en) * | 2018-10-18 | 2019-02-19 | 陈姿璇 | A kind of anti-dropout hingle and its anti-dropout method |
| CN109349942B (en) * | 2018-10-18 | 2021-11-02 | 陈姿璇 | Anti-falling pot handle and anti-falling method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203189454U (en) | Elastic-clamp-type drop-proof expansion screw | |
| CN205080323U (en) | Draw -in groove mounting formula glasses | |
| CN205716197U (en) | A kind of power plant's cigarette air channel rectangle fillet compensator | |
| CN204369884U (en) | Detachable label type Micro-Organism Culture Dish | |
| CN203986337U (en) | A kind of slippers of adjustable size | |
| CN203667163U (en) | Grid-type storage cover cylinder | |
| CN201792576U (en) | Clip | |
| CN204362726U (en) | The frame structure of cage | |
| CN203255437U (en) | Installation structure of side plate and base plate of packing case | |
| CN202843230U (en) | Magnetic clothes rack | |
| CN204231916U (en) | The fertilizer distributor of easy cleaning | |
| CN201741580U (en) | Positioning bracket for capacitor | |
| CN203348890U (en) | Edge sealing section material side plate | |
| CN200962022Y (en) | Delay turnover mould | |
| CN205345646U (en) | Many barbs bail | |
| CN203189450U (en) | Self-locking and anti-loosening expansion screw | |
| CN206185902U (en) | Joint lid of robot | |
| CN205406329U (en) | Switch on stabiliser | |
| CN205402226U (en) | Aluminum alloy edging | |
| CN204699681U (en) | A kind of height-adjustable reactor base | |
| CN204105039U (en) | A kind of assemblnig slider of zipper fastener | |
| CN204236943U (en) | With the bottle cap of function of telescope | |
| CN204526445U (en) | A kind of printer drum | |
| CN203078221U (en) | Suitcase trundle of turnup structure | |
| CN205499386U (en) | Take fuselage and unmanned helicopter of open battery compartment |
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: 20130911 Termination date: 20150221 |
|
| EXPY | Termination of patent right or utility model |