CN201155518Y - Antitheft unidirectional screw nail - Google Patents
Antitheft unidirectional screw nail Download PDFInfo
- Publication number
- CN201155518Y CN201155518Y CNU2007201715204U CN200720171520U CN201155518Y CN 201155518 Y CN201155518 Y CN 201155518Y CN U2007201715204 U CNU2007201715204 U CN U2007201715204U CN 200720171520 U CN200720171520 U CN 200720171520U CN 201155518 Y CN201155518 Y CN 201155518Y
- Authority
- CN
- China
- Prior art keywords
- screw
- bolt
- spring
- protection tube
- protecting casing
- 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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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model provides an anti-theft one-way bolt, mainly consisting of a support protecting casing 1, a bolt 2, an internal ratchet circular plate 3, a spring 4 and a protecting casing 5. The utility model is characterized in that the bolt 2 is arranged inside the support protecting casing 1; the internal ratchet circular plate 3 is arranged in the central bore of the support protecting casing 1, and is in interference fit with the central bore of the support protecting casing; the internal ratchet circular plate 3 matches with the cross teeth 21 of the bolt 2; the spring 4 is sheathed around the threaded segment of the bolt 2; the protecting casing 5 is sheathed around the spring 4. After the assembly, the opening end of the support protecting casing 1 is processed into a conical shape through special technology, wherein, the bolt 2 consists of cross teeth 21, a fixing circular plate 22, a bolt 23 and a spring 24; the nut end of the bolt 23 is provided with a lug boss structure 25; one end of the cross teeth 21 is sheathed on the spring 24 and is inserted in the hole of the bolt 23; the fixing circular plate 22 is sheathed on the bolt 23, and is sheathed on the cross teeth 21 at the same time.
Description
Technical field
The utility model relates to a kind of screw, especially a kind of antitheft One-way screw.
Background technique
Along with the continuous progress of science and technology, various fastening screw trip bolts are widely used in fastening related components, but existing screw is can freely tighten with pine to unload mostly, have the amphicheirality, do not need to adopt special tool(s) can realize disassemble or assemble, be convenient for people to use, at some special dimensions, requirement, easy dress and not readily removable is in when dismounting, require to adopt special tool to realize, therefore, existing screw can not satisfy the particularity application need usually, has certain defective.
Summary of the invention
The purpose of this utility model is a kind of addressing the above problem of development, the antitheft One-way screw of compact structure.
The utility model is mainly by an overfill protection tube; screw; inner ratchet ring flat spring and protection tube are formed; it is characterized in that: screw is arranged in the overfill protection tube; the inner ratchet ring sheet is arranged on the middle part internal diameter of an overfill protection tube; with an overfill protection tube middle part internal diameter interference fit; " ten " word tooth of inner ratchet ring sheet and screw cooperates; spring housing is at the helical thread portion of screw; the protection jacket casing is on spring; after assembling is finished; adopt the opening end that special process will prop up the overfill protection tube and make taper; wherein, screw comprises " ten " word tooth; fixed ring piece; the body of screw and spring, the nut end of the body of screw has boss structure; " ten " word tooth one end is enclosed within on the spring; and insert in the hole of the body of screw, fixed ring piece is enclosed within on the body of screw, is enclosed within simultaneously on " ten " word tooth; in use; adopt normal screws the Knife tool can tighten screw, adopt the normal screws cutter then can not draw off screw, reach purpose of design.
This reality is novel to have following advantage:
1, via enforcement of the present utility model, adopt normal screws the Knife tool, screw can be easily tightened, and screw can not be drawn off, safe antitheft.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an assembling schematic representation of the present utility model.
Fig. 3 is the structural representation of the sectional view of of the present utility model overfill protection tube.
Fig. 4 is the structural representation of of the present utility model overfill protection tube opening end after special process is handled.
Fig. 5 is the schematic representation of the plan view of the utility model inner ratchet ring sheet.
Fig. 6 is the structural representation of the partial sectional view of the utility model screw.
Among the figure, 1 overfill protection tube, 2 screws, 21 " ten " word teeth, 22 fixed ring pieces, 23 bodies of screw, 24 springs, 25 boss structures, 3 inner ratchet ring sheets, 4 springs, 5 are protected tube
Embodiment
The utility model shown in the figure is mainly by an overfill protection tube 1; screw 2; inner ratchet ring sheet 3; spring 4 and protection tube 5 are formed; it is characterized in that: screw 2 is arranged in the overfill protection tube 1; inner ratchet ring sheet 3 is arranged on the middle part internal diameter of an overfill protection tube 1; with overfill protection tube 1 a middle part internal diameter interference fit; " ten " word tooth 21 of inner ratchet ring sheet 3 and screw 2 cooperates; spring 4 is enclosed within the helical thread portion of screw 2; protection tube 5 is enclosed within on the spring 4; after assembling is finished; adopt the opening end that special process will prop up overfill protection tube 1 and make taper; wherein; screw 2 comprises " ten " word tooth 21; fixed ring piece 22; the body of screw 23 and spring 24; the nut end of the body of screw 23 has boss structure 25; " ten " word tooth 21 1 ends are enclosed within on the spring 24, and insert in the hole of the body of screw 23, and fixed ring piece 22 is enclosed within on the body of screw 23; be enclosed within simultaneously on " ten " word tooth 21, reach purpose of design.
The utility model is simple in structure, easily tighten not quick detachable, reliable performance, effective, adult is low, is widely used in needing antitheft screw field.
Claims (2)
1, the utility model provides antitheft One-way screw; mainly form by an overfill protection tube (1), screw (2), inner ratchet ring sheet (3), spring (4) and protection tube (5); it is characterized in that: screw (2) is arranged in the overfill protection tube (1); inner ratchet ring sheet (3) is arranged on the middle part internal diameter of an overfill protection tube (1); with overfill protection tube (a 1) middle part internal diameter interference fit; " ten " word tooth (21) of inner ratchet ring sheet (3) and screw (2) cooperates; spring (4) is enclosed within the helical thread portion of screw (2), and protection tube (5) is enclosed within on the spring (4).
2, antitheft One-way screw according to claim 1, it is characterized in that described screw (2) comprises " ten " word tooth (21), fixed ring piece (22), the body of screw (23) and spring (24), the nut end of the body of screw (23) has boss structure (25), " ten " word tooth (21) one ends are enclosed within on the spring (24), and insert in the hole of the body of screw (23), fixed ring piece (22) is enclosed within on the body of screw (23), is enclosed within simultaneously on " ten " word tooth (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201715204U CN201155518Y (en) | 2007-12-11 | 2007-12-11 | Antitheft unidirectional screw nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201715204U CN201155518Y (en) | 2007-12-11 | 2007-12-11 | Antitheft unidirectional screw nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201155518Y true CN201155518Y (en) | 2008-11-26 |
Family
ID=40103301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201715204U Expired - Fee Related CN201155518Y (en) | 2007-12-11 | 2007-12-11 | Antitheft unidirectional screw nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201155518Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112612140A (en) * | 2020-12-29 | 2021-04-06 | 重庆蓝岸通讯技术有限公司 | Noiseless two-way ratchet structure |
-
2007
- 2007-12-11 CN CNU2007201715204U patent/CN201155518Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112612140A (en) * | 2020-12-29 | 2021-04-06 | 重庆蓝岸通讯技术有限公司 | Noiseless two-way ratchet structure |
| CN112612140B (en) * | 2020-12-29 | 2022-10-18 | 重庆蓝岸科技股份有限公司 | Noiseless two-way ratchet structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20100111 |