CN204828251U - Purpose -built screw - Google Patents
Purpose -built screw Download PDFInfo
- Publication number
- CN204828251U CN204828251U CN201520602693.1U CN201520602693U CN204828251U CN 204828251 U CN204828251 U CN 204828251U CN 201520602693 U CN201520602693 U CN 201520602693U CN 204828251 U CN204828251 U CN 204828251U
- Authority
- CN
- China
- Prior art keywords
- groove
- draw
- lug
- screw
- projection
- 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
- 238000000926 separation method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000005474 detonation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- Steering Controls (AREA)
Abstract
The utility model discloses a purpose -built screw, its technical scheme main points are, including key and bolt cap, set up the recess on the terminal surface of bolt cap, set up the draw -in groove of following the setting of inside wall circumference on the inside wall of recess and extend to the outer guiding groove of recess, the draw -in groove switches on with the guiding groove, set up and recess complex lug in the recess, set up on the lug and be used for sinking the groove with the opener complex, the lug still includes with the draw -in groove complex protrudingly, it is protruding through guiding groove and draw -in groove cooperation, by adopting the above technical scheme, main fixed through draw -in groove and bellied cooperation (frictional force) between lug and the recess, when rotating the lug (when twisting the screw go into), the inner wall of protruding butt draw -in groove when twisting the back with this screw, is dismantled the arch get off, rotates the lug this moment in the other direction, the protruding back of coming out to the guiding groove in, the lug with tie the cap separation because the setting of heavy groove is on the lug, therefore instrument such as opener can not be back -outed the screw.
Description
Technical field
The utility model relates to a kind of special screw.
Background technique
Screw is a kind of common fastening piece, can play the effect of connection according to the structural feature of himself well.
Existing screw is screwed into fixing by opener, need also to be back-outed by opener when dismounting, but does not need screw to back-out in some occasion, and screw also will be prevented on the contrary to be screwed out.More such as placed the box of important thing, in order to prevent other people from plagiarizing, if screw can not be screwed out, if want the thing taken in box to destroy, box is just easy to be found once destruction.
Model utility content
For the deficiency that prior art exists, the utility model provides a kind of special screw, does not take out after screw is screwed into by instruments such as openers.
For achieving the above object, the utility model provides following technological scheme: a kind of special screw, comprise key and bolt cap, the end face of described bolt cap arranges groove, the madial wall of described groove is offered the draw-in groove arranged along madial wall circumference and the steering channel extended to outside groove, described draw-in groove and steering channel conducting, projection with groove fit is set in described groove, described projection is offered the deep gouge for coordinating with opener, described projection also comprises the projection coordinated with draw-in groove, and described projection coordinates with draw-in groove through steering channel.
By adopting technique scheme, fix mainly through draw-in groove and protruding coordinate (frictional force) between projection with groove, when rotation projection (when being screwed into by screw), the protruding inwall abutting draw-in groove, after being screwed into this screw, projection is disassembled, now counter-rotation projection, to be raised in steering channel out, projection is separated with bolt cap, because deep gouge is arranged on projection, therefore screw can not be back-outed by the instrument such as opener.
The utility model is set to further, and described groove is circular groove.
By adopting technique scheme, circular groove, the cylindrical body matched with it, can relatively rotate with circular groove when cylindrical body rotates time, therefore screw can not be taken out, when for rectangular recess, although adopt opener screw can not be taken out, but adopt and can not relatively rotate with when the instrument of cuboid and groove fit, therefore screw can be taken out.
The utility model is set to further, described projection is also provided with the block of taking of conveniently taking.
By adopting technique scheme, conveniently projection is taken out.
Accompanying drawing explanation
Fig. 1 is the detonation configuration schematic diagram one of a kind of special spiral shell of the utility model;
Fig. 2 is the detonation configuration schematic diagram two of a kind of special spiral shell of the utility model;
Fig. 3 is the detonation configuration schematic diagram three of a kind of special spiral shell of the utility model;
Fig. 4 is the plan view of a kind of special spiral shell of the utility model.
Reference character: 1, key; 2, bolt cap; 21, groove; 22, draw-in groove; 23, steering channel; 3, projection; 31, protruding; 32, deep gouge; 4, to take block.
Embodiment
Referring to figs. 1 through Fig. 4, a kind of special screw embodiment of the utility model is described further.
A kind of special screw, comprise key 1 and bolt cap 2, the end face of described bolt cap 2 arranges groove 21, the madial wall of described groove 21 is offered the draw-in groove 22 arranged along madial wall circumference and the steering channel 23 extended to outside groove 21, described draw-in groove 22 and steering channel 23 conducting, in described groove 21, the projection 3 coordinated with groove 21 is set, described projection 3 is offered the deep gouge 32 for coordinating with opener, described projection 3 also comprises the projection 31 coordinated with draw-in groove 22, and described protruding 31 coordinate with draw-in groove 22 through steering channel 23.
Further, described groove 21 is circular groove 21; Circular groove 21, the cylindrical body matched with it, can relatively rotate with circular groove 21 when cylindrical body rotates time, therefore screw can not be taken out, when for rectangular recess 21 time, although adopt opener screw can not be taken out, adopt when coordinating with groove 21 with the instrument of cuboid and can not relatively rotate, therefore screw can be taken out.
Further, described projection 3 is also provided with the block 4 of taking of conveniently taking, projection 3, for cuboid, conveniently takes out by block 4 of taking.
The utility model advantage: fix mainly through coordinate (frictional force) of draw-in groove 22 and protruding 31 between projection 3 with groove 21, when rotation projection 3 (time screw is screwed into), the inwall of protruding 31 abutting draw-in grooves 22, after this screw is screwed into, projection 31 is disassembled, now counter-rotation projection 3, in protruding 31 to steering channel 23 out after, projection 3 is separated with bolt cap 2, and because deep gouge 32 is arranged on projection 3, therefore screw can not be back-outed by the instrument such as opener.
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 special screw, comprise key and bolt cap, it is characterized in that: the end face of described bolt cap arranges groove, the madial wall of described groove is offered the draw-in groove arranged along madial wall circumference and the steering channel extended to outside groove, described draw-in groove and steering channel conducting, arranging the projection with groove fit, described projection being offered the deep gouge for coordinating with opener in described groove, described projection also comprises the projection coordinated with draw-in groove, and described projection coordinates with draw-in groove through steering channel.
2. a kind of special screw according to claim 1, is characterized in that: described groove is circular groove.
3. a kind of special screw according to claim 1, is characterized in that: described projection is also provided with the block of taking of conveniently taking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520602693.1U CN204828251U (en) | 2015-08-12 | 2015-08-12 | Purpose -built screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520602693.1U CN204828251U (en) | 2015-08-12 | 2015-08-12 | Purpose -built screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204828251U true CN204828251U (en) | 2015-12-02 |
Family
ID=54685858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520602693.1U Expired - Fee Related CN204828251U (en) | 2015-08-12 | 2015-08-12 | Purpose -built screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204828251U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782207A (en) * | 2016-03-31 | 2016-07-20 | 南通康达鑫电子有限公司 | Isolating type screw assembly |
| CN105952760A (en) * | 2016-06-27 | 2016-09-21 | 无锡迪奥机械有限公司 | Fixedly-cooperated bolt and nut assembly |
| CN107524687A (en) * | 2017-08-25 | 2017-12-29 | 柳州市贵高物资有限责任公司 | Anti-theft screw |
| CN108869505A (en) * | 2018-09-13 | 2018-11-23 | 甘建国 | A kind of bolt with nut |
-
2015
- 2015-08-12 CN CN201520602693.1U patent/CN204828251U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782207A (en) * | 2016-03-31 | 2016-07-20 | 南通康达鑫电子有限公司 | Isolating type screw assembly |
| CN105952760A (en) * | 2016-06-27 | 2016-09-21 | 无锡迪奥机械有限公司 | Fixedly-cooperated bolt and nut assembly |
| CN107524687A (en) * | 2017-08-25 | 2017-12-29 | 柳州市贵高物资有限责任公司 | Anti-theft screw |
| CN108869505A (en) * | 2018-09-13 | 2018-11-23 | 甘建国 | A kind of bolt with nut |
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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: 20160504 Address after: 325603, Wenzhou, Zhejiang Province, Yueqing City, North White Deer Town Village Gate Patentee after: Wenzhou Guisheng Fastener Co., Ltd. Address before: 325603, 21, Sha Hong Road, North Bai Yue Ling industrial area, Wenzhou, Zhejiang, Yueqing Patentee before: WENZHOU JINYU FASTENER 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: 20151202 Termination date: 20180812 |