CN203892336U - Anti-theft screw - Google Patents
Anti-theft screw Download PDFInfo
- Publication number
- CN203892336U CN203892336U CN201420212075.1U CN201420212075U CN203892336U CN 203892336 U CN203892336 U CN 203892336U CN 201420212075 U CN201420212075 U CN 201420212075U CN 203892336 U CN203892336 U CN 203892336U
- Authority
- CN
- China
- Prior art keywords
- nut
- screw rod
- screw
- ring block
- fixed tray
- 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 anti-theft screw, which comprises a screw rod and a nut, wherein a fixed disc is arranged on the end portion of the screw rod, a column body is arranged on the fixed disc, an inner hole is arranged in the nut, a plurality of sawteeth are arranged on the inner wall of the nut, a ring-shaped block is arranged on the bottom portion of the nut, the ring-shaped block is sleeved outside the screw rod, and is used to limit the fixed disc to move toward the tail direction of the screw rod, a plurality of grooves or lugs are arranged on the ring-shaped block at intervals, lugs or grooves are correspondingly arranged on the bottom portion of the fixed disc, and the ring-shaped block is matched and connected with the fixed disc. The anti-theft screw is excellent anti-theft effect, can separate the screw rod and the nut, and is convenient to change.
Description
Technical field
The utility model relates to technical field of fastening, is specifically related to a kind of anti-theft screw.
Background technique
Traditional screw generally can supply cross, yi word pattern or the locking of quincunx screwdriver or turn on, and the structure of coping screw is comparatively general, belongs to standard piece, and the corresponding bottle opener using has general character.Therefore, a lot of vitals are easily usurped by people, particularly, in some outdoor products, due to managerial drawback, can cause unnecessary trouble.Easily be unscrewed and the adverse consequences that causes for fear of coping screw, in prior art, anti-theft screw rises gradually.
But in prior art, anti-theft screw mostly is hexagonal structure, need to could open with corresponding bottle opener or spanner.And Hexagon belongs to regular shape, in actual application, anti-theft function is not outstanding.And in prior art, the nut of anti-theft screw and screw rod are overall structure, in the time that wherein a part is damaged, need entirety to abandon, cause the wasting of resources.
Model utility content
The purpose of this utility model is to overcome above shortcoming, and a kind of good anti-theft effect is provided, and screw rod can separate with nut, changes anti-theft screw easily.
The technical solution of the utility model is:
A kind of anti-theft screw, comprises screw rod and nut, and the end of described screw rod is provided with a fixed tray, is provided with a cylinder on described fixed tray; In described nut, be provided with an endoporus, described nut inwall is provided with several sawtooth, the bottom of described nut is provided with a ring block, described ring block is set in outside described screw rod, described ring block is for limiting the caudal directions motion of described fixed tray towards described screw rod, on described ring block, be arranged at intervals with multiple grooves or projection, the bottom correspondence of described fixed tray is provided with projection or groove, and described ring block and described fixed tray are connected.
Further, the upper surface of described cylinder is lower than the upper surface of described nut.
Further, described nut entirety is frustoconic shape.
Further, the tooth depth of described sawtooth is 2-3mm.
Further, the cross section of described cylinder is circle, ellipse or polygonal.
The anti-theft screw that the utility model provides, tool has the following advantages:
1, the anti-theft screw that the utility model provides, good anti-theft effect.The anti-theft screw that the utility model provides, the end of screw rod is provided with a fixed tray, is provided with a cylinder on fixed tray; In nut, be provided with an endoporus, nut inwall is provided with several sawtooth, the bottom of nut is provided with a ring block, ring block is set in outside screw rod, ring block is for limiting the caudal directions motion of fixed tray towards screw rod, on ring block, be arranged at intervals with multiple grooves or projection, the bottom correspondence of fixed tray is provided with projection or groove, states ring block and fixed tray is connected.By changing the structure of nut, nut inwall arranges several sawtooth, and in actual applications, the screw opening tool kind of saw tooth structure is less, can effectively prevent that screw from being turned on by other people, makes object stolen.
Particularly, in the time that nut entirety is frustoconic shape, adopt spanner to be difficult to turn nut, further improved the theftproof performance of screw.
2, the anti-theft screw that the utility model provides, screw rod can separate with nut, and it is convenient to change, the user cost that can save screw.The anti-theft screw that the utility model provides, by spaced multiple grooves or projection, makes ring block and fixed tray by being connected, the screw rod being connected can separate with nut, when wherein a part of when impaired, change impaired part, and change convenient.By changing impaired parts, can reduce the user cost of screw.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment's technological scheme, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the utility model anti-theft screw;
Fig. 2 is the left TV structure schematic diagram of Fig. 1;
Reference character: 1-nut, 2-screw rod, 3-fixed tray, 4-cylinder, 5-endoporus, 6-sawtooth, 7-ring block, 8-projection.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, 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 who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment
A kind of anti-theft screw, comprises screw rod 2 and nut 1, and the end of screw rod 1 is provided with a fixed tray 3, is provided with a cylinder 4 on fixed tray 3; In nut 1, be provided with an endoporus 5, nut 1 inwall is provided with several sawtooth 6, the bottom of nut 1 is provided with a ring block 7, ring block 7 is set in outside screw rod 2, ring block 7 is for limiting the caudal directions motion of fixed tray 3 towards screw rod, on ring block 7, be arranged at intervals with multiple grooves or projection, the bottom correspondence of fixed tray 3 is provided with projection 8 or groove, and ring block 7 is connected with fixed tray 3.
In the utility model, the afterbody of screw rod refers to one end that opposite direction is set with cylinder.In accompanying drawing, groove is set on ring block, in accompanying drawing, does not mark, fixed tray bottom arranges projection, and projection is connected with groove fit.By changing the structure of nut, nut inwall arranges several sawtooth, and in actual applications, nut inwall arranges several sawtooth, adopts general purpose tool to be difficult to make nut to rotate; And the screw opening tool kind of saw tooth structure is less, can effectively prevent that screw from being turned on by other people, make object stolen.
In the utility model, nut 1 entirety is frustoconic shape, and nut top is not identical with the size of bottom, adopts spanner or other instruments to be difficult to turn nut and rotates, and has further improved the theftproof performance of this screw.
In the utility model, the tooth depth of sawtooth 6 is 2-3mm, can be 2mm, 2.5mm, 3mm equidimension.In this dimensional range, can prevent that general purpose tool from rotating rotary nut, ensures the theftproof performance of screw.
In the utility model, the cross section of cylinder 4 is circle, ellipse or polygonal, can be also other shapes.
The anti-theft screw that uses the utility model to provide, need to support the use opener, and the appearance of this opener is made up of several zigzag fashion equally, coincide with the structure of nut inwall; The center of opener arranges a hole matching with cylinder, and when rotating opener, nut rotates; Because nut and screw rod are connected, nut drives bolt rotary when rotation, realizes the unlatching of anti-theft screw and tightens.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all any amendments of doing, be equal to replacement etc., within all should being included in protection domain of the present utility model in protection domain of the present utility model.
Claims (5)
1. an anti-theft screw, comprises screw rod and nut, it is characterized in that, the end of described screw rod is provided with a fixed tray, is provided with a cylinder on described fixed tray; In described nut, be provided with an endoporus, described nut inwall is provided with several sawtooth, the bottom of described nut is provided with a ring block, described ring block is set in outside described screw rod, described ring block is for limiting the caudal directions motion of described fixed tray towards described screw rod, on described ring block, be arranged at intervals with multiple grooves or projection, the bottom correspondence of described fixed tray is provided with projection or groove, and described ring block and described fixed tray are connected.
2. anti-theft screw according to claim 1, is characterized in that, the upper surface of described cylinder is lower than the upper surface of described nut.
3. anti-theft screw according to claim 1, is characterized in that, described nut entirety is frustoconic shape.
4. anti-theft screw according to claim 1, is characterized in that, the tooth depth of described sawtooth is 2-3mm.
5. according to the anti-theft screw described in any one in claim 1 to 4, it is characterized in that, the cross section of described cylinder is circle, ellipse or polygonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420212075.1U CN203892336U (en) | 2014-04-28 | 2014-04-28 | Anti-theft screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420212075.1U CN203892336U (en) | 2014-04-28 | 2014-04-28 | Anti-theft screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203892336U true CN203892336U (en) | 2014-10-22 |
Family
ID=51718744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420212075.1U Expired - Fee Related CN203892336U (en) | 2014-04-28 | 2014-04-28 | Anti-theft screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203892336U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840625A (en) * | 2016-06-02 | 2016-08-10 | 常州市金海珑机械制造有限公司 | Bolt with adjustable bolt head |
| WO2018023850A1 (en) * | 2016-08-02 | 2018-02-08 | 上海圣享科技股份有限公司 | Anti-theft screw |
| WO2018023848A1 (en) * | 2016-08-02 | 2018-02-08 | 上海圣享科技股份有限公司 | Threaded connection device, and controller and control method thereof |
-
2014
- 2014-04-28 CN CN201420212075.1U patent/CN203892336U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840625A (en) * | 2016-06-02 | 2016-08-10 | 常州市金海珑机械制造有限公司 | Bolt with adjustable bolt head |
| WO2018023850A1 (en) * | 2016-08-02 | 2018-02-08 | 上海圣享科技股份有限公司 | Anti-theft screw |
| WO2018023848A1 (en) * | 2016-08-02 | 2018-02-08 | 上海圣享科技股份有限公司 | Threaded connection device, and controller and control method thereof |
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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 |
Granted publication date: 20141022 Termination date: 20160428 |