CN204186733U - Captive screw structure - Google Patents
Captive screw structure Download PDFInfo
- Publication number
- CN204186733U CN204186733U CN201420620345.2U CN201420620345U CN204186733U CN 204186733 U CN204186733 U CN 204186733U CN 201420620345 U CN201420620345 U CN 201420620345U CN 204186733 U CN204186733 U CN 204186733U
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- China
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- screw
- rod portion
- ring
- screw rod
- limiting stopper
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Abstract
The utility model relates to a kind of captive screw structure, comprise set screw and be socketed in the riveted part on set screw, described set screw comprises screw head and screw rod portion, described screw rod portion is provided with outwardly screw thread, be provided with in the middle part of described riveted part and pass for screw rod portion through hole, be provided with inwardly protruded ring-type limiting stopper through hole near the end of screw head described, the internal diameter of described ring-type limiting stopper is less than the external diameter of screw thread and is greater than the diameter in screw rod portion.After have employed said structure, composite structure is simple, and the time used is few, can improve the manufacturing efficiency of product, small volume, reduce cost of production, does not adopt colored tooth to rivet and riveting knot structure is turned in employing, can not destroy the structure of sheet material, can not affect its using function.
Description
Technical field
The utility model relates to five metals manufacturing technology industry, especially relates to a kind of captive screw structure.
Background technique
At present, make in industry at five metals, there is a kind of captive screw structure, can ensure that in unloading process screw and riveted part can not depart from, easy to use, this bolt structure is mainly socketed on screw by riveted part, between screw and riveted part, be provided with spring, screw is provided with annular knurl, by turning the object that annular knurl realizes connecting, but its complex structure of this screw, and the assembly time is relatively long, riveted part adopts flower tooth to carry out riveted, after flower tooth is entered aluminium sheet by riveting, the structure of sheet material can be destroyed, affect using function.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of structure and simply saves time and the captive screw structure can not destroying sheet material.
The technical scheme in the invention for solving the technical problem is: a kind of captive screw structure, comprise set screw and socket and the riveted part of movement on set screw, described set screw comprises screw head and screw rod portion, described screw rod portion is provided with outwardly screw thread, be provided with in the middle part of described riveted part and pass for screw rod portion through hole, be provided with inwardly protruded ring-type limiting stopper through hole near the end of screw head described, the internal diameter of described ring-type limiting stopper is less than the external diameter of screw thread and is greater than the diameter in screw rod portion.
Further, in order to sheet material can be protected to exempt from destruction, described riveted part turns over riveting limit away from the protruding ring-type in end of screw head.
Further, in order to protect the screw thread in screw rod portion to preserve from, described ring-type limiting stopper outer wall and riveted part axis are 45 ° of angles, and the inwall of ring-type limiting stopper and riveted part axis are 60 ° of angles.
Concrete further, described screw head is provided with interior plum blossom band post.
Concrete further, described screw head is provided with straight groove or cross recess.
The beneficial effects of the utility model are: after have employed said structure, composite structure is simple, time used is few, the manufacturing efficiency of product can be improved, small volume, reduces cost of production, does not adopt colored tooth to rivet and riveting knot structure is turned in employing, the structure of sheet material can not be destroyed, its using function can not be affected.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model riveted part.
In figure: 1, riveted part; 2, set screw; 11, ring-type limiting stopper; 12, ring-type turns over riveting limit; 21, interior plum blossom band post; 22, screw head; 23, screw rod portion; 24, screw thread.
Embodiment
Below in conjunction with accompanying drawing, the utility model is explained in detail.
A kind of captive screw structure as depicted in figs. 1 and 2, comprise set screw 2 and be socketed and the riveted part 1 of movement on set screw 2, described set screw 2 comprises screw head 22 and screw rod portion 23, described screw rod portion 23 is provided with outwardly screw thread 24, be provided with in the middle part of described riveted part 1 and pass for screw rod portion 23 through hole, inwardly protruded ring-type limiting stopper 11 is provided with through hole near the end of screw head 22 described, the internal diameter of described ring-type limiting stopper 11 is less than the external diameter of screw thread 24 and is greater than the diameter in screw rod portion 23, can ensure that set screw 2 can not drop from riveted part 1.
Riveted part 1 turns over riveting limit 12 away from the protruding ring-type in end of screw head 22, adopts and turns over the destruction of riveting knot structure minimizing to sheet material, can not affect the using function of sheet material.
Ring-type limiting stopper 11 outer wall and riveted part 1 axis are 45 ° of angles, and the inwall of ring-type limiting stopper 11 and riveted part 1 axis are 60 ° of angles, reduce the destruction of ring-type limiting stopper 11 double thread 24, increase the working life of captive screw structure.
Described screw head 22 is provided with interior plum blossom band post 21, realizes anti-theft feature; Described screw head 22 is provided with straight groove or cross recess.
The using process of captive screw structure: first, turning over riveting limit 12 by ring-type is riveted on sheet material by riveted part 1, the length of turning over riveting limit is lower than sheet material 0.2mm after riveted joint, after riveted joint outside not outstanding sheet material, tightening operation is carried out by the screw thread 24 in set screw bar portion 23, when dismounting, only need set screw 2 to unclamp, because the ring-type limiting stopper 11 on riveted part 1 can ensure that set screw 2 can not come off.
It is emphasized that: be only preferred embodiment of the present utility model above, not any pro forma restriction is done to the utility model, every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (5)
1. a captive screw structure, comprise set screw (2) and be socketed and the riveted part (1) of movement on set screw (2), it is characterized in that, described set screw (2) comprises screw head (22) and screw rod portion (23), described screw rod portion (23) is provided with outwardly screw thread (24), described riveted part (1) middle part is provided with to be passed for screw rod portion (23) through hole, inwardly protruded ring-type limiting stopper (11) is provided with through hole near the end of screw head (22) described, the internal diameter of described ring-type limiting stopper (11) is less than the external diameter of screw thread (24) and is greater than the diameter of screw rod portion (23).
2. captive screw structure according to claim 1, is characterized in that, described riveted part (1) turns over riveting limit (12) away from the protruding ring-type in end of screw head (22).
3. captive screw structure according to claim 1, is characterized in that, described ring-type limiting stopper (11) outer wall and riveted part (1) axis are 45 ° of angles, and the inwall of ring-type limiting stopper (11) and riveted part (1) axis are 60 ° of angles.
4. captive screw structure according to claim 1, is characterized in that, described screw head (22) is provided with interior plum blossom band post (21).
5. captive screw structure according to claim 1, is characterized in that, described screw head (22) is provided with straight groove or cross recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420620345.2U CN204186733U (en) | 2014-10-25 | 2014-10-25 | Captive screw structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420620345.2U CN204186733U (en) | 2014-10-25 | 2014-10-25 | Captive screw structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186733U true CN204186733U (en) | 2015-03-04 |
Family
ID=52618741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420620345.2U Active CN204186733U (en) | 2014-10-25 | 2014-10-25 | Captive screw structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358760A (en) * | 2014-10-25 | 2015-02-18 | 苏州工业园区新凯精密五金有限公司 | Captive screw structure |
-
2014
- 2014-10-25 CN CN201420620345.2U patent/CN204186733U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358760A (en) * | 2014-10-25 | 2015-02-18 | 苏州工业园区新凯精密五金有限公司 | Captive screw structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |