CN204739072U - Auto -lock screw - Google Patents
Auto -lock screw Download PDFInfo
- Publication number
- CN204739072U CN204739072U CN201520427966.3U CN201520427966U CN204739072U CN 204739072 U CN204739072 U CN 204739072U CN 201520427966 U CN201520427966 U CN 201520427966U CN 204739072 U CN204739072 U CN 204739072U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- nut
- screw
- self
- locking
- 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 an auto -lock screw, which comprises a screw cap and a screw rod, the screw rod surface is equipped with the external screw thread through the tapping mode, the nut front end is equipped with tight setting device, be connected through the connecting block between nut and the screw rod, flexible piece is all welded at the both ends of screw rod, the inboard fixed mounting spring of elasticity piece, and the spring is fixed and the surface of screw rod, the screw rod end is equipped with sharp tail, the surface of point tail is equipped with the screw thread through the tapping mode, the nut edge is square structure, nut all around surface be protruding column structure, and the nut middle part be recessed shape, and this auto -lock screw through setting up the elasticity piece on the screw rod surface, sets up the spring in the inboard of elasticity piece, rotatoryly enters easily in rotatory screw like this, and the setting of elasticity piece makes the screw rotation difficult landing in back of entering, and it is dead to reach the automatic locking.
Description
Technical field
The utility model relates to link technical field, is specially a kind of Self-locking screw.
Background technique
In the assembling of various equipment, all screw will be used, large screw can be placed on screw hole easily, use screw the instrument such as to criticize and carry out locking work, some product needed screw lock, if discontinuity is little, screw is scrapped, large then cause whole product rejection due to screw hole stripped thread, also have conventional screw opposite house, window in life to be fixed, many times use swell fixture, but swell fixture volume ratio is larger, be not easy to throw body of wall into, also easily fracture sometimes, for this reason, we propose a kind of Self-locking screw.
Model utility content
The purpose of this utility model is to provide a kind of Self-locking screw, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technological scheme: a kind of Self-locking screw, comprise nut and screw rod, described screw rod outer surface is provided with outside thread by tapping mode, described nut front end is provided with locking apparatus, described nut is connected by contiguous block with between screw rod, the two ends of described screw rod are all welded with elastomer block, the inner side fixed installation spring of described elastomer block, and the surface with screw rod fixed by spring, described screw rod end is provided with fine stern, and the outer surface of described fine stern is provided with screw thread by tapping mode.
Preferably, described nut edge is square structure, and described nut surrounded surface is convex structure, is concave shape in the middle part of nut.
Preferably, described locking apparatus is positioned at nut front center, and described locking apparatus is female groove structures.
Preferably, described contiguous block is truncated cone shape structure, and the end of contiguous block is identical with the front end radial diameter of screw rod.
Preferably, described fine stern basal diameter is greater than screw rod radial diameter and is less than outside thread radial diameter.
Preferably, the center line of described nut, contiguous block, screw rod and fine stern is all on same straight line.
Preferably, the overall diameter of described screw rod, spring and elastomer block is less than the diameter of nut.
Preferably, described elastomer block is set to arcuate stream line shape structure.
Compared with prior art, the beneficial effects of the utility model are: this Self-locking screw, by arranging elastomer block in screw surface, in the inner side of elastomer block, spring is set, easily rotate into when rotary screw like this, the setting of elastomer block, after screw rotation is entered, be not easy landing, can reach and be automatically locked, arrange screw thread at the outer surface of fine stern, easily screw precession interior of articles, screw rod is set to cylindrical body, like this can uniform force in the process rotated, avoid breakage phenomenon.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model nut structure schematic diagram.
In figure: 1 nut, 2 screw rods, 3 locking apparatus, 4 outside threads, 5 fine sterns, 6 contiguous blocks, 7 springs, 8 elastomer block, 9 screw threads.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-2, the utility model provides a kind of technological scheme: a kind of Self-locking screw, comprise nut 1 and screw rod 2, screw rod 2 outer surface is provided with outside thread 4 by tapping mode, nut 1 front end is provided with locking apparatus 3, be connected by contiguous block 6 between nut 1 with screw rod 2, the two ends of screw rod 2 are all welded with elastomer block 8, the inner side fixed installation spring 7 of elastomer block 8, the setting of elastomer block 8, landing is not easy after screw rotation is entered, can reach and be automatically locked, and spring 7 is fixing and the surface of screw rod 2, screw rod 2 end is provided with fine stern 5, the outer surface of fine stern 5 is provided with screw thread 9 by tapping mode, screw thread 9 forms helix structure, rotate laborsaving, nut 1 edge is square structure, nut 1 surrounded surface is convex structure, it is concave shape in the middle part of nut 1, locking apparatus 3 is positioned at nut 1 front center, locking apparatus 3 is female groove structures, contiguous block 6 is truncated cone shape structure, the end of contiguous block 6 is identical with the front end radial diameter of screw rod, fine stern 5 basal diameter is greater than screw rod 2 radial diameter and is less than outside thread 4 radial diameter, nut 1, contiguous block 6, the center line of screw rod 2 and fine stern 5 is all on same straight line, the uniform force when twisting, avoid breakage phenomenon, screw rod 2, the overall diameter of spring 7 and elastomer block 8 is less than the diameter of nut 1, screw can be made so easily to rotate in object, elastomer block 8 is set to arcuate stream line shape structure, this screw is by screw-driver pretension, can be fixed further by foursquare marginal texture by other instruments in a special case.
Although illustrate and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and spirit, scope of the present utility model is by claims and equivalents thereof.
Claims (8)
1. a Self-locking screw, comprise nut (1) and screw rod (2), it is characterized in that: described screw rod (2) outer surface is provided with outside thread (4) by tapping mode, described nut (1) front end is provided with locking apparatus (3), be connected by contiguous block (6) between described nut (1) with screw rod (2), the two ends of described screw rod (2) are all welded with elastomer block (8), inner side fixed installation spring (7) of described elastomer block (8), and spring (7) is fixing and the surface of screw rod (2), described screw rod (2) end is provided with fine stern (5), the outer surface of described fine stern (5) is provided with screw thread (9) by tapping mode.
2. a kind of Self-locking screw according to claim 1, is characterized in that: described nut (1) edge is square structure, and described nut (1) surrounded surface is convex structure, and nut (1) middle part is concave shape.
3. a kind of Self-locking screw according to claim 1, is characterized in that: described locking apparatus (3) is positioned at nut (1) front center, and described locking apparatus (3) is female groove structures.
4. a kind of Self-locking screw according to claim 1, is characterized in that: described contiguous block (6) is truncated cone shape structure, and the end of contiguous block (6) is identical with the front end radial diameter of screw rod.
5. a kind of Self-locking screw according to claim 1, is characterized in that: described fine stern (5) basal diameter is greater than screw rod (2) radial diameter and is less than outside thread (4) radial diameter.
6. a kind of Self-locking screw according to claim 1, is characterized in that: the center line of described nut (1), contiguous block (6), screw rod (2) and fine stern (5) is all on same straight line.
7. a kind of Self-locking screw according to claim 1, is characterized in that: the overall diameter of described screw rod (2), spring (7) and elastomer block (8) is less than the diameter of nut (1).
8. a kind of Self-locking screw according to claim 1, is characterized in that: described elastomer block (8) is set to arcuate stream line shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520427966.3U CN204739072U (en) | 2015-06-21 | 2015-06-21 | Auto -lock screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520427966.3U CN204739072U (en) | 2015-06-21 | 2015-06-21 | Auto -lock screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204739072U true CN204739072U (en) | 2015-11-04 |
Family
ID=54420810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520427966.3U Expired - Fee Related CN204739072U (en) | 2015-06-21 | 2015-06-21 | Auto -lock screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204739072U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642535A (en) * | 2017-11-07 | 2018-01-30 | 陈小龙 | The mechanical or for building connecting bolt of fast and easy connection |
-
2015
- 2015-06-21 CN CN201520427966.3U patent/CN204739072U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642535A (en) * | 2017-11-07 | 2018-01-30 | 陈小龙 | The mechanical or for building connecting bolt of fast and easy connection |
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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: 20151104 Termination date: 20160621 |