CN103982508A - Antiskid anti-theft screw - Google Patents
Antiskid anti-theft screw Download PDFInfo
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- CN103982508A CN103982508A CN201410152002.2A CN201410152002A CN103982508A CN 103982508 A CN103982508 A CN 103982508A CN 201410152002 A CN201410152002 A CN 201410152002A CN 103982508 A CN103982508 A CN 103982508A
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- screw
- screw head
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- end surface
- cavity
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Abstract
The invention discloses an antiskid anti-theft screw which comprises a screw head, wherein the lower end surface of the screw head is vertically provided with a screw shank; the screw shank and the screw head are integrally arranged; the upper end surface of the screw head is provided with a groove for installation and detachment; the lower end surface of the screw head is provided with a plurality of anti-loose chamfered teeth; the chamfered teeth are obliquely arranged along the screwing-out direction of the screw; the groove is a linear groove; the stress surface, used for screwing out the screw, of the linear groove is an arc-shaped surface; the screw head is internally provided with a cylindrical cavity; the cavity is extended upward so as to be communicated with the linear groove; the cavity is also internally provided with two stress bosses used for providing stress surfaces for screwing out the screw. The screw provided by the invention has the characteristics of strong fastening performance, less loosening possibility, anti-theft capability and detachable function, and is simple in structure, low in production cost and convenient in operation.
Description
Technical field
The present invention relates to a kind of screw, particularly a kind of anti-skid anti-theft screw.
Background technique
Screw is one of the most frequently used secure component, in all application to some extent of the numerous areas such as mechanical engineering, electrical equipment, medical apparatus.In prior art, the screw head with groove and a threaded cylinder or conical metallic screw bar form by one for common screw, and screw head and screw rod are generally and are wholely set.When this type of screw uses on the stronger workpiece of vibration, be conventionally prone to loosening or come off, having potential safety hazard, staff needs regularly screw one by one to tighten up for this reason.In addition; while use on the workpiece of safety protection particular importance; this kind of screw do not possess anti-theft feature; although people have developed multiple anti-theft screw in prior art; but all have generally higher problem of complex structure, cost of production, and most screw causes larger difficulty in order to strengthen anti-theft feature to normal demolition and maintenance.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, provide a kind of fastening performance strong, be difficult for getting loose, antitheft but possess the screw of dismountable function.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of anti-skid anti-theft screw, include screw head, and on the lower end surface of described screw head, be vertically installed with screw rod, described screw rod and screw head are wholely set; The upper-end surface of screw head is provided with the groove that installing/dismounting uses, and the lower end surface of described screw head is provided with some anti-loose chamfered teeths, and described chamfered teeth screws out direction along screw and is obliquely installed.
Described groove is yi word pattern groove, and the stress surface screwing out for screw of described yi word pattern groove is arc shaped surface; Described screw head inside offers cylindrical cavity, and described cavity upwards extends with yi word pattern groove and is connected; In described cavity, be also provided with two and provide the stressed boss of stress surface for screw screws out.
Described stressed boss is that interior angle is the fan-shaped boss of 90 degree, and described in two, fan-shaped boss diagonal angle arranges.
The present invention in use, use slotted point screwdriver of the prior art can realize screwing of screw, in the time that screw need to screw out, use the inverted T shape screw-driver supporting with screw to insert yi word pattern groove rotation, the both wings of inverted T shape screw-driver are affiliated on the upper wall of cavity, firmly upwards lift the chamfered teeth that embeds workpiece surface is hauled out, more firmly rotate inverted T shape screw-driver, stressed boss provides stress surface for screw screws out, and screw is screwed out.Compared with prior art, the invention has the beneficial effects as follows: the lower end surface of screw head is provided with chamfered teeth, under the larger power that tightens, chamfered teeth embeds workpiece surface, make between screw and workpiece to produce larger frictional force, and chamfered teeth screws out direction along screw and be obliquely installed, form larger resistance to getting loose of screw, significantly improve the fastening performance of screw, effectively avoided the get loose generation of phenomenon of screw; The stress surface screwing out for screw of yi word pattern groove is arc shaped surface, common slotted point screwdriver because losing Point of Strength, back-out screw cannot be screwed out screw, in screw head, be provided with cavity, in cavity, be provided with stressed boss, make screw in playing anti-theft function, possess dismountable function, simple in structure, low production cost and simple operation.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is that the B of Fig. 1 is to view.
Fig. 3 is the sectional view of A-A in Fig. 1.
In figure: 1, screw head; 2, screw rod; 3, yi word pattern groove; 4, chamfered teeth; 5, arc shaped surface; 6, vertical wall; 7, cavity; 8, stressed boss.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples are only for technological scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, anti-skid anti-theft screw, includes screw head 1, is vertically installed with screw rod 2 on the lower end surface of screw head 1, and screw rod 2 is wholely set with screw head 1.The upper-end surface of screw head 1 is provided with the yi word pattern groove 3 that installing/dismounting uses, and the lower end surface of screw head 1 is provided with some anti-loose chamfered teeths 4, and chamfered teeth 4 screws out direction along screw and is obliquely installed.
As shown in Figure 2, the stress surface screwing out for screw of yi word pattern groove 3 is arc shaped surface 5, and the left and right sides cell wall of yi word pattern groove 3 forms by arc shaped surface 5 and vertical wall 6.Rotary screw is example for screwing in tightening direction in a clockwise direction, vertical wall 6 is arranged in the front portion of the left side cell wall of yi word pattern groove 3, arc shaped surface 5 is arranged at rear portion, the front portion part relative with the vertical wall 6 of left side cell wall of the right side cell wall of yi word pattern groove 3 is arranged to arc shaped surface, and the vertical wall relative with left side cell wall arc shaped surface 5 is arranged at rear portion.The common slotted point screwdriver that is arranged so that of arc shaped surface 5 loses Point of Strength in the time screwing out screw, thereby cannot screw out screw.
As shown in Figure 3, screw head 1 inside offers cylindrical cavity 7, and cavity 7 upwards extends with yi word pattern groove 3 and is connected; In cavity 7, be also provided with two for screw screws out the stressed boss 8 that stress surface is provided, stressed boss 8 is that interior angle is the fan-shaped boss of 90 degree, and two fan-shaped boss diagonal angles arrange.Stressed boss 8 is not limited to fan-shaped boss structure, and interior angle is also not limited to 90 degree, and the object that stressed boss 8 arranges is to provide stress surface for screw screws out.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (3)
1. an anti-skid anti-theft screw, includes screw head, on the lower end surface of described screw head, is vertically installed with screw rod, and described screw rod and screw head are wholely set; The upper-end surface of screw head is provided with the groove that installing/dismounting uses, and it is characterized in that, the lower end surface of described screw head is provided with some anti-loose chamfered teeths, and described chamfered teeth screws out direction along screw and is obliquely installed.
2. anti-skid anti-theft screw according to claim 1, is characterized in that, described groove is yi word pattern groove, and the stress surface screwing out for screw of described yi word pattern groove is arc shaped surface; Described screw head inside offers cylindrical cavity, and described cavity upwards extends with yi word pattern groove and is connected; In described cavity, be also provided with two and provide the stressed boss of stress surface for screw screws out.
3. anti-skid anti-theft screw according to claim 2, is characterized in that, described stressed boss is that interior angle is the fan-shaped boss of 90 degree, and described in two, fan-shaped boss diagonal angle arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410152002.2A CN103982508A (en) | 2014-04-16 | 2014-04-16 | Antiskid anti-theft screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410152002.2A CN103982508A (en) | 2014-04-16 | 2014-04-16 | Antiskid anti-theft screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103982508A true CN103982508A (en) | 2014-08-13 |
Family
ID=51274615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410152002.2A Pending CN103982508A (en) | 2014-04-16 | 2014-04-16 | Antiskid anti-theft screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103982508A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937537A (en) * | 2016-06-27 | 2016-09-14 | 无锡迪奥机械有限公司 | Fixing bolt for wooden product |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57149315U (en) * | 1981-03-16 | 1982-09-20 | ||
| CN2234524Y (en) * | 1994-06-16 | 1996-09-04 | 顾志明 | One-way self-locking screw |
| CN2359515Y (en) * | 1999-03-12 | 2000-01-19 | 韩兆法 | Anti-theft screw and its speical operation tool |
| CN2690651Y (en) * | 2003-11-11 | 2005-04-06 | 上海晨远科技发展有限公司 | Anti-loose screw |
| CN101659044A (en) * | 2009-08-24 | 2010-03-03 | 成都峻峰科技开发有限公司 | Rotary clamp type screwdriver and screw |
| CN203051368U (en) * | 2013-02-20 | 2013-07-10 | 宁波中斌紧固件制造有限公司 | Square-head bolt |
| CN204239415U (en) * | 2014-04-16 | 2015-04-01 | 国家电网公司 | A kind of anti-skid anti-theft screw |
-
2014
- 2014-04-16 CN CN201410152002.2A patent/CN103982508A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57149315U (en) * | 1981-03-16 | 1982-09-20 | ||
| CN2234524Y (en) * | 1994-06-16 | 1996-09-04 | 顾志明 | One-way self-locking screw |
| CN2359515Y (en) * | 1999-03-12 | 2000-01-19 | 韩兆法 | Anti-theft screw and its speical operation tool |
| CN2690651Y (en) * | 2003-11-11 | 2005-04-06 | 上海晨远科技发展有限公司 | Anti-loose screw |
| CN101659044A (en) * | 2009-08-24 | 2010-03-03 | 成都峻峰科技开发有限公司 | Rotary clamp type screwdriver and screw |
| CN203051368U (en) * | 2013-02-20 | 2013-07-10 | 宁波中斌紧固件制造有限公司 | Square-head bolt |
| CN204239415U (en) * | 2014-04-16 | 2015-04-01 | 国家电网公司 | A kind of anti-skid anti-theft screw |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937537A (en) * | 2016-06-27 | 2016-09-14 | 无锡迪奥机械有限公司 | Fixing bolt for wooden product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140813 |