CN204041682U - A kind of captive screw blind rivet - Google Patents
A kind of captive screw blind rivet Download PDFInfo
- Publication number
- CN204041682U CN204041682U CN201420464341.XU CN201420464341U CN204041682U CN 204041682 U CN204041682 U CN 204041682U CN 201420464341 U CN201420464341 U CN 201420464341U CN 204041682 U CN204041682 U CN 204041682U
- Authority
- CN
- China
- Prior art keywords
- blind rivet
- threaded stem
- diameter
- screw
- polished rod
- 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
- 230000002262 irrigation Effects 0.000 claims abstract 2
- 238000003973 irrigation Methods 0.000 claims abstract 2
- 238000005728 strengthening Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Insertion Pins And Rivets (AREA)
Abstract
The utility model discloses a kind of captive screw blind rivet, comprise blind rivet body, its drip irrigation device is: described blind rivet body comprises blind rivet head, the first threaded stem, polished rod, the second threaded stem and blind rivet tail from top to bottom successively, described first threaded stem diameter equals the second threaded stem diameter, described polished rod diameter is less than the first threaded stem diameter, and the diameter of described screw head and the first threaded stem joint is less than the first threaded stem diameter.The utility model by arranging one section of screw thread below the screw head of captive screw, and the advantage of realization is: the blind rivet head intensity strengthening captive screw; Improve the connective stability of captive screw.
Description
Technical field
The utility model relates to fastening connection piece field, and more particularly, it relates to a kind of captive screw blind rivet.
Background technique
Screw is as a kind of fastening connection piece of extensive practicality, especially captive screw, in the industrial production, captive screw is a kind of component be in daily use, the connection between workpiece is carried out by captive screw, captive screw is otherwise known as panel screw, so be widely used in casing, fixing of the workpiece such as panel, the blind rivet of captive screw is main linkage function parts, under normal circumstances, captive screw blind rivet is half tooth screw, blind rivet tail is being provided with one section of threaded stem, it is polished rod between blind rivet head and screw thread, reach polished rod diameter at polished rod place be less than the core diameter of thread by rolling, when screw precession tapped hole, the screw thread of tapped hole can be threaded to polished rod place, even if ensure that screw does not coordinate with tapped hole also can not drop, reach the object that pine is not de-, but, because polished rod diameter is less than the diameter of thread, what cause polished rod is not so good as threaded stem by force intensity, easily occur that stress is concentrated at polished rod and blind rivet head joint, cause blind rivet fracture of root, or the fracture of polished rod bend portions, simultaneously, when connecting thread hole depth is too large, polished rod diameter is less than tapped hole diameter, polished rod cannot contact with hole, cause screw can rock in tapped hole, connect unstable.Therefore, need a kind of intensity that both can improve captive screw, the not de-blind rivet of pine of the connective stability of captive screw can be strengthened again.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of intensity that both can improve captive screw, can strengthen again the captive screw blind rivet of the connective stability of captive screw.
For achieving the above object, the utility model provides following technological scheme: a kind of captive screw blind rivet, comprise blind rivet body, described blind rivet body comprises blind rivet head, the first threaded stem, polished rod, the second threaded stem and blind rivet tail from top to bottom successively, described first threaded stem diameter equals the second threaded stem diameter, described polished rod diameter is less than the first threaded stem diameter, and the diameter of described screw head and the first threaded stem joint is greater than the first threaded stem diameter, and described blind rivet tail axial cross section is triangle.
By adopting technique scheme, the blind rivet of captive screw arranges two ends screw thread of a size, and one section is connected with blind rivet head, another section is function screw thread, connected by polished rod between two sections of screw threads, and, the diameter of screw head and the first threaded stem joint is greater than the first threaded stem diameter, thus improve the bulk strength of captive screw blind rivet, when connecting thread hole depth is larger, the screw thread be connected with blind rivet head also can screw in tapped hole, and screw would not rock in tapped hole, enhances the connective stability of captive screw; Meanwhile, the design of blind rivet tail makes core core body more easily enter the tapped hole of connection.
The utility model is set to further: described blind rivet head and the first curved fillet in threaded stem joint, described blind rivet head, the first threaded stem, polished rod, the second threaded stem and the one-body molded connection of screw tail.
By adopting technique scheme, because polished rod diameter is less than the diameter of thread, what cause polished rod is not so good as threaded stem by force intensity, easily occur that stress is concentrated at polished rod and blind rivet head joint, cause blind rivet fracture of root, or the fracture of polished rod bend portions, be connected with screw head by adopting threaded stem, because the diameter of threaded stem is greater than polished rod diameter, so add the intensity of screw blind rivet, simultaneously, threaded stem and the joint of blind rivet head are that arc transition is connected, the stress reducing screw blind rivet root is concentrated, thus decrease the risk of captive screw blind rivet fracture of root, improve working life.
The utility model is set to further: described blind rivet head is cross recess coiled hair shape, and described blind rivet tail axial cross section is equilateral right-angled triangle.
By adopting technique scheme, captive screw is more easily screwed into link, connects more convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of captive screw blind rivet of the utility model;
Fig. 2 is that the axle of a kind of captive screw blind rivet of the utility model measures intention.
Accompanying drawing illustrates: 1, blind rivet body; 2, blind rivet head; 3, the first threaded stem; 4, polished rod 5, second threaded stem; 6, blind rivet tail.
Embodiment
Referring to figs. 1 through Fig. 2, a kind of captive screw blind rivet of the utility model embodiment is described further.
The utility model is achieved in that a kind of captive screw blind rivet, comprise blind rivet body 1, blind rivet body 1 comprises blind rivet 2 from top to bottom successively, first threaded stem 3, polished rod 4, second threaded stem 5 and blind rivet tail 6, simultaneously, blind rivet 2, first threaded stem 3, polished rod 4, second threaded stem 5 and the one-body molded connection of screw tail, preferably, first threaded stem 3 is consistent with the diameter of the second threaded stem 5, and one section is connected with blind rivet 2, another section is function screw thread, connected by polished rod 4 between two sections of threaded stems, preferably, polished rod 4 diameter is less than the diameter of thread, blind rivet tail 6 axial cross section is triangular in shape, two ends screw thread and polished rod 4 are arranged at the position relationship on blind rivet body 1 and size excessively together, improve the bulk strength of captive screw blind rivet, when connecting thread hole depth is larger, also can screw in tapped hole with blind rivet 2 screw thread be connected, screw would not rock in tapped hole, enhance the connective stability of captive screw.
Further, because polished rod 4 diameter is less than the diameter of thread, what cause polished rod 4 is not so good as threaded stem by force intensity, easily occur that stress is concentrated in polished rod 4 and blind rivet 2 joint, cause blind rivet fracture of root, or the fracture of polished rod 4 bend portions, in order to reduce blind rivet root in working order time stress concentrate, the diameter of screw head and the first threaded stem joint is greater than the first threaded stem diameter, and curved fillet is set in blind rivet 2 and the first threaded stem 3 joint, the stress reducing screw blind rivet root is concentrated, thus decrease the risk of captive screw blind rivet fracture of root, improve working life.
Further, easy to use in order to captive screw, is more easily screwed into link, and preferably, blind rivet 2 is set to cross recess coiled hair shape, and blind rivet tail 6 is set to taper shape, and captive screw is more easily screwed into link, connects more convenient.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a captive screw blind rivet, comprise blind rivet body, its drip irrigation device is: described blind rivet body comprises blind rivet head, the first threaded stem, polished rod, the second threaded stem and blind rivet tail from top to bottom successively, described first threaded stem diameter equals the second threaded stem diameter, described polished rod diameter is less than the first threaded stem diameter, the diameter of described blind rivet head and the first threaded stem joint is greater than the first threaded stem diameter, described blind rivet tail axial cross section tail triangle.
2. the adjustable captive screw of one according to claim 1, its technical characteristics is: described blind rivet head and the first curved fillet in threaded stem joint, described blind rivet head, the first threaded stem, polished rod, the second threaded stem and the one-body molded connection of screw tail.
3. the adjustable captive screw of one according to claim 1 and 2, its technical characteristics is: described blind rivet head is cross recess coiled hair shape, and described blind rivet tail is set to taper shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420464341.XU CN204041682U (en) | 2014-08-16 | 2014-08-16 | A kind of captive screw blind rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420464341.XU CN204041682U (en) | 2014-08-16 | 2014-08-16 | A kind of captive screw blind rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204041682U true CN204041682U (en) | 2014-12-24 |
Family
ID=52242351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420464341.XU Expired - Fee Related CN204041682U (en) | 2014-08-16 | 2014-08-16 | A kind of captive screw blind rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204041682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465126A (en) * | 2016-01-05 | 2016-04-06 | 昆山恩都照明有限公司 | Connecting structure capable of preventing screw from falling off |
-
2014
- 2014-08-16 CN CN201420464341.XU patent/CN204041682U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465126A (en) * | 2016-01-05 | 2016-04-06 | 昆山恩都照明有限公司 | Connecting structure capable of preventing screw from falling off |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151022 Address after: 310018, No. 1, No. 15, No. 30, main street, Hangzhou economic and Technological Development Zone, Zhejiang, A Patentee after: Hangzhou tongna Hardware Manufacturing Co. Ltd. Address before: 310018 M14-11-2 block, Hangzhou economic and Technological Development Zone, Hangzhou, Zhejiang Patentee before: ESSENCE ELECTROMECHANICAL MANUFACTURING (HANGZHOU) CO., LTD. |
|
| 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: 20141224 Termination date: 20160816 |