CN202622649U - Wrench special for antitheft fasteners - Google Patents
Wrench special for antitheft fasteners Download PDFInfo
- Publication number
- CN202622649U CN202622649U CN 201220231047 CN201220231047U CN202622649U CN 202622649 U CN202622649 U CN 202622649U CN 201220231047 CN201220231047 CN 201220231047 CN 201220231047 U CN201220231047 U CN 201220231047U CN 202622649 U CN202622649 U CN 202622649U
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- Prior art keywords
- clamping face
- decide
- fastening piece
- special spanner
- binding clip
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- Withdrawn - After Issue
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Abstract
The utility model discloses a wrench special for antitheft fasteners. The wrench comprises a pipe tongs handle (3) and a movable tongs head (4) which form a pipe tongs structure, wherein a threaded rod (4.1) is arranged on the movable tongs head (4); the threaded rod (4.1) of the movable tongs head (4) is movably inserted in a mounting hole in the pipe tongs handle (3) and is provided with an adjusting nut (5); inclined conical planes are arranged on a fixed clamping surface (3.1) of the pipe tongs handle (3) and a movable clamping surface (4.2) of the movable tongs head (4); and an inclined taper angle (beta) between the inclined conical plane arranged on the fixed clamping surface (3.1) or the movable clamping surface (4.2) and the horizontal plane is 45 degrees to 85 degrees. The wrench has the advantages of good antitheft effect, simple structure, easiness in manufacturing, low manufacturing cost, convenience in use and the like.
Description
Technical field
The utility model relates to a kind of special spanner of anti-theft fastening piece, belongs to the anti-theft fastening piece technical field.
Background technology
On the infrastructure of communication, electric power, railway, it is fastening to use screw, nut to carry out in a large number, because common nut is easy to turn on, therefore the incident that adopts plain screw, the facility of nut locking to steal is often taken place.For addressing this problem; Many securing members that prevent have been proposed in the prior art by the technical scheme of pirate of the open; As the disclosed application number of Chinese patent document be 2010202667407, the utility model name is called the technical scheme of " a kind of antitheft heterotypic bolt "; In this technical scheme, nut or bolt head are made as frustum formula structure, a part that is about to the side of nut or bolt head is made into continuous taper seat, and its remainder is made into the continuous icicle face that the plural conical surface forms; Adopt common pipe wrench just can not open this antitheft heterotypic bolt like this, and can only could open through special spanner.Though the heterotypic bolt of this structure has certain anti-theft feature, the problem that exist complex structure, make difficulty, cost of manufacture is high, particularly its patent spanner adopts and the diverse structure of conventional pipe wrench, so its cost of manufacture is higher; And because the continuous icicle face structure that existing this heterotypic bolt adopted; There is Ling Jiao in junction at its conical surface and the conical surface; This icepro angular position is easy to impacted, thereby it is loosening that bolt or nut are produced, and therefore the anti-theft effect of existing this structural fasteners neither be fine.So the result of use of existing existing anti-theft fastening piece still is not ideal enough.
Summary of the invention
The purpose of the utility model is: the special spanner of a kind of good anti-theft effect and anti-theft fastening piece simple in structure, that cost of manufacture is lower, easy to use is provided, to overcome the deficiency of prior art.
The utility model is achieved in that the special spanner of a kind of anti-theft fastening piece of the utility model does; This special spanner comprises pipe wrench handle and the movable binding clip of forming the pipe wrench shape; On movable binding clip, be provided with threaded rod; The threaded rod activity of movable binding clip is plugged in the installing hole on the pipe wrench handle; On the threaded rod of movable binding clip, adjusting nut is housed, the pipe wrench handle decide on the clamping face and the moving clamping face of movable binding clip is provided with scalene cone, and be arranged on and decide on the clamping face or the oblique cone angle of scalene cone on the moving clamping face and horizontal plane is 45 °～85 °.
Above-mentioned be arranged on decide on the clamping face with moving clamping face on scalene cone all be the symmetrically arranged diclinic conical surface; Promptly deciding all to be respectively arranged with two symmetrical scalene cones on the clamping face He on the moving clamping face, and the scalene cone of these two symmetries all is 45 °～85 ° with the oblique cone angle of horizontal plane respectively.
Above-mentioned special spanner decide on the clamping face with moving clamping face on scalene cone on all be provided with friction teeth.
Above-mentioned decide clamping face and moving clamping face is the clamping face of circular arc, and to decide clamping face be the dome arc, moving clamping face is a concave arc shape.
The dome radius of the above-mentioned dome arc of deciding clamping face is more than or equal to the recessed radius of circle of the concave arc shape of moving clamping face.
Owing to adopted technique scheme; The special spanner of the anti-theft fastening piece of the utility model is mainly used in bolt or the nut anti-theft fastening piece of tightening or unclamping the circular cone post shapes; This anti-theft fastening piece can only be tightened or open through the special spanner of the utility model; Because the special spanner of the utility model is special spanner, has only the client who has grasped this special spanner just can tighten and unclamp the anti-theft fastening piece of the utility model.What the drive mechanism of the special spanner of the utility model and operating principle adopted is the structure of pipe wrench formula of the prior art; Just when making clamping face, slightly change; So when producing the special spanner of the utility model; Can directly adopt current production devices to produce, not need to drop into again new equipment, save production capital greatly.Therefore, the utility model compared with prior art, the utility model not only has the advantage of good anti-theft effect, but also have simple in structure, make easily, advantage such as cost of manufacture is low, easy to use.
Description of drawings
Fig. 1 is that the special spanner of the utility model is opened the structural representation when being connected the nut on the bolt;
Fig. 2 analyses and observe the partial structurtes sketch map for the A-A of Fig. 1;
Fig. 3 is the bolt arrangement sketch map in the utility model anti-theft fastening piece;
Fig. 4 is the nut structure sketch map in the utility model anti-theft fastening piece.
Description of reference numerals: 1-bolt, 1.1-screw rod, 1.2-bolt head, 2-nut; 3-pipe wrench handle, 3.1-decides clamping face, the movable binding clip of 4-, 4.1-threaded rod; 4.2-moving clamping face, 5-adjusting nut, α-cone angle, β-oblique cone angle; The radius of R-radiused edges, R1-dome radius, the recessed radius of circle of R2-.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
The embodiment of the utility model: the utility model is constructed by the method for pirate of the open according to following a kind of securing member that prevents; This method is in advance the shape fabricating of the bolt head 1.2 of the bolt of being made up of screw rod 1.1 and bolt head 1.2 1 in the securing member to be become the circular cone post shapes, and the profile of the nut in the securing member 2 also is made into the circular cone post shapes; To be used to tighten or open the planform that this special spanner that has the bolt 1 of circular cone post profile bolt head 1.2 or have a nut 2 of circular cone post profile is made into the pipe wrench formula then; Simultaneously when the special spanner of this pipe wrench formula of making; The clamping face of using it for the clamped firmware is made into the clamping face of oblique cone face-type structural; Make the oblique cone angle of this scalene cone identical with the cone angle of nut 2 or bolt head 1.2 circular cone posts; In the time of can making the bolt head 1.2 of clamping face bolt 1 in the clamped firmware of scalene cone formula like this or when clamping nut 2; This clamping face can fit together with the conical surface of the circular cone post profile of bolt head 1.2 or nut 2, can bolt 1 or nut 2 tightened or unclamps like this, adopts this method; Can or tighten this securing member that has the bolt 1 of circular cone post profile bolt head 1.2 or have the nut 2 of circular cone post profile through this special spanner unlatching, prevent that securing member is by the purpose of pirate of the open thereby reach.
Structural representation such as Fig. 3 and shown in Figure 4 of a kind of anti-theft fastening piece of making according to said method; This anti-theft fastening piece comprises nut 2 in the conventional fastener and the bolt of being made up of screw rod 1.1 and bolt head 1.2 1; During making, the profile of the bolt head 1.2 of bolt 1 and the profile of nut 2 all are made into the circular cone post shapes; The cone angle of the conical surface of the circular cone post of the nut 2 of bolt head of circular cone post profile 1.2 and circular cone post profile and horizontal plane is controlled at 45 °～85 ° scope; For the circular cone post that makes bolt head 1.2 or nut 2 can be adjacent to workpiece in use better; Reach better result of use; Can be with bolt head 1.2 or/and the edge that the conical surface of the circular cone post of nut 2 is connected with the major diameter plane of its circular cone post be made into the edge of circular arc; Make bolt head 1.2 or/and the conical surface of the circular cone post of nut 2 is connected with its major diameter plane through radiused edges respectively, the radius R of its radiused edges is controlled at 4～10 millimeters scopes and gets final product.
A kind of structural representation of special spanner of anti-theft fastening piece of the utility model that is used for said method is as depicted in figs. 1 and 2; This special spanner comprises the pipe wrench handle 3 and movable binding clip 4 of forming the pipe wrench shape; On movable binding clip 4, be provided with the threaded rod 4.1 of traditional pipe wrench; The threaded rod 4.1 of movable binding clip 4 is plugged in the installing hole on the pipe wrench handle 3 by traditional mode versatilely; Simultaneously on the threaded rod 4.1 of movable binding clip 4, adjusting nut 5 is housed by traditional approach; During making, pipe wrench handle 3 decide produce scalene cone on the clamping face 3.1 and on the moving clamping face 4.2 at movable binding clip 4, and the oblique cone angle beta between this scalene cone and the horizontal plane is controlled at 45 °～85 °; Making be arranged on decide on the clamping face 3.1 with moving clamping face 4.2 on scalene cone the time; Can with its be produced on pipe wrench handle 3 decide on the clamping face 3.1 and the scalene cone on the moving clamping face 4.2 of movable binding clip 4 is all only produced a scalene cone respectively; But it is convenient in order to use; Can be produced on pipe wrench handle 3 decide on the clamping face 3.1 and the scalene cone on the moving clamping face 4.2 of movable binding clip 4 all is made into the diclinic conical surface (as shown in Figure 2) respectively; Promptly deciding all to produce two symmetrical scalene cones respectively on the clamping face 3.1 He on the moving clamping face 4.2, and the scalene cone that makes these two symmetries respectively and the oblique cone angle beta between the horizontal plane all be 45 °～85 °; In order to have higher frictional force in use, can decide on the clamping face 3.1 with moving clamping face 4.2 on scalene cone on all produce the friction teeth that can increase frictional force, the planform of this friction teeth is identical with friction teeth planform on traditional pipe wrench; Simultaneously for; Increase chucking power; Can be with deciding the clamping face (as shown in Figure 1) that clamping face 3.1 and moving clamping face 4.2 are made into circular arc; And will decide clamping face 3.1 and be made into the dome arc, will move clamping face 4.2 and be made into concave arc shape, and the dome radius R 1 that makes the dome arc of deciding clamping face 3.1 is more than or equal to the recessed radius of circle R2 of the concave arc shape of moving clamping face 4.2.
Claims (5)
1. the special spanner of an anti-theft fastening piece; Comprise pipe wrench handle (3) and the movable binding clip (4) of forming the pipe wrench shape; On movable binding clip (4), be provided with threaded rod (4.1); Threaded rod (4.1) activity of movable binding clip (4) is plugged in the installing hole on the pipe wrench handle (3); On the threaded rod (4.1) of movable binding clip (4), adjusting nut (5) is housed; It is characterized in that: pipe wrench handle (3) decide that clamping face (3.1) is gone up and the moving clamping face (4.2) of movable binding clip (4) is provided with scalene cone, and be arranged on decide that clamping face (3.1) is gone up or moving clamping face (4.2) on scalene cone and the oblique cone angle (β) of horizontal plane be 45 °～85 °.
2. according to the special spanner of the said anti-theft fastening piece of claim 1; It is characterized in that: be arranged on decide that clamping face (3.1) is gone up and moving clamping face (4.2) on scalene cone all be the symmetrically arranged diclinic conical surface; Promptly deciding that clamping face (3.1) is gone up and moving clamping face (4.2) on all be respectively arranged with two symmetrical scalene cones, and the scalene cone of these two symmetries all is 45 °～85 ° with the oblique cone angle (β) of horizontal plane respectively.
3. according to the special spanner of the said anti-theft fastening piece of claim 1, it is characterized in that: deciding all to be provided with friction teeth on the clamping face (3.1) and on the scalene cone on the moving clamping face (4.2).
4. according to the special spanner of the said anti-theft fastening piece of claim 1, it is characterized in that: decide clamping face (3.1) and moving clamping face (4.2) is the clamping face of circular arc, and to decide clamping face (3.1) be the dome arc, moving clamping face (4.2) is a concave arc shape.
5. according to the special spanner of the said anti-theft fastening piece of claim 4, it is characterized in that: the dome radius (R1) of dome arc of deciding clamping face (3.1) is more than or equal to the recessed radius of circle (R2) of the concave arc shape of moving clamping face (4.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231047 CN202622649U (en) | 2012-05-22 | 2012-05-22 | Wrench special for antitheft fasteners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231047 CN202622649U (en) | 2012-05-22 | 2012-05-22 | Wrench special for antitheft fasteners |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202622649U true CN202622649U (en) | 2012-12-26 |
Family
ID=47375889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220231047 Withdrawn - After Issue CN202622649U (en) | 2012-05-22 | 2012-05-22 | Wrench special for antitheft fasteners |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202622649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705347A (en) * | 2012-05-22 | 2012-10-03 | 贵州大奥博科技开发有限公司 | Method for preventing fastening piece from being illegally opened, anti-theft fastening piece and special spanner |
-
2012
- 2012-05-22 CN CN 201220231047 patent/CN202622649U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705347A (en) * | 2012-05-22 | 2012-10-03 | 贵州大奥博科技开发有限公司 | Method for preventing fastening piece from being illegally opened, anti-theft fastening piece and special spanner |
| CN102705347B (en) * | 2012-05-22 | 2014-11-05 | 曾方泓 | Method for preventing fastening piece from being illegally opened, anti-theft fastening piece and special spanner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121226 Effective date of abandoning: 20141105 |
|
| RGAV | Abandon patent right to avoid regrant |