CN201559149U - Fast adjustment anti-skid monkey spanner - Google Patents
Fast adjustment anti-skid monkey spanner Download PDFInfo
- Publication number
- CN201559149U CN201559149U CN200920216610XU CN200920216610U CN201559149U CN 201559149 U CN201559149 U CN 201559149U CN 200920216610X U CN200920216610X U CN 200920216610XU CN 200920216610 U CN200920216610 U CN 200920216610U CN 201559149 U CN201559149 U CN 201559149U
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- CN
- China
- Prior art keywords
- key
- eccentric key
- eccentric
- spanner
- cambered surface
- 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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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to an anti-skid monkey spanner, the top end of a key slot is semi-circular; an eccentric key is arranged in the key slot, one end of the eccentric key is in the shape of a semi-circular cambered surface, the non-adjacent end is in the shape of a cambered surface, two surfaces between the two cambered surfaces are mutually parallel, a spring is arranged between the eccentric key and the key slot, an adjustable spanner head and a spanner body adopt the concave-convex connection way, the key slot is formed in the adjustable spanner head, the eccentric key and a pressure spring are embedded in the key slot, and a bulge is arranged on the outer side of the eccentric key. When the bulge is stirred to the direction which is reverse to that of the spring tension, a jaw can be opened, when the adjustable spanner head is pushed to the direction of a fixed spanner head, the adjustable spanner head is closed to the direction of the fixed spanner head. When wrenching and rotating a workpiece, the greater the stress of the adjustable spanner head, the stronger the force of the cambered surface of the eccentric key and the top end of a boss of the eccentric key acted on two walls of a concave track, the self-locking is formed, and then the adjustable spanner head can not be far away from the fixed spanner head absolutely. The anti-skid monkey spanner has the advantages of simple and reasonable structural design and rapid regulation, opening and closing, and can fundamentally avoid the slip phenomenon of the monkey spanner and improve the safety of the operation.
Description
Technical field
The utility model belongs to a kind of manual hardware ﹠ tools, relates in particular to a kind of adjustable wrench.
Background technology
Adjustable wrench is one of a kind of instrument that the most generally uses in the hand-operated tools, and the operator can regulate use within the specific limits according to the nut of different specification size.The most modes that adopt tooth bar to cooperate of existing adjustable wrench with worm gear, need screw worm gear frequently to regulate the jaw folding with the adjustable wrench of this fit system manufacturing when the bolt of twisting different size or the nut, governing speed is slow, skid easily, operate dangerously, and be bound to be subjected in various degree damage by the bolt after the twisting or nut angle.
Summary of the invention
In order to overcome the deficiency of existing adjustable wrench, the utility model provides a kind of anti-skidding adjustable wrench, this adjustable wrench has not only kept all functions of existing adjustable wrench, and can carry out opening apace and regulate, loose skidding can not take place back in movable jaw when switching bolt or nut, clamping is firm, can not damage bolt or nut, and handling safety is reliable.
For achieving the above object, the utility model has adopted following technical scheme: movable jaw adopts concavo-convex mode to be connected cooperation with pulling between the body, movable jaw can move freely at the concave groove that is positioned at wrench body, this concave groove has three faces, it is open away from a fixing end of spanner, on movable jaw, be provided with an open keyway, the distance of two end points of the open end of keyway is greater than 2 times of the semicircle end radius length of keyway, keyway is embedded in eccentric key and a stage clip, and the cooperation between the three makes movable jaw have eccentric auto-lock function when the switching nut.Its structural feature is: keyway is open, is fan-shaped, top semicircular in shape face; Eccentric key has an end semicircular in shape cambered surface, an end non-conterminous with it is cambered surface, two faces between two cambered surfaces are parallel to each other, the semicircle cambered surface of eccentric key is identical with the radius of the semicircle face of keyway, make an end of eccentric key cambered surface can be in keyway be central movable with the center of circle of the semicircle face of keyway, eccentric key cambered surface one end rises between its semicircle face a boss, eccentric key boss and the corresponding one side of eccentric key cambered surface are convex surface, and the ultimate range between eccentric key cambered surface and this convex surface summit is greater than the width of concave groove; Be the cambered surface one end outside at close eccentric key and be provided with a projection, the open place of keyway has a breach to be mated simultaneously, stirs this projection and can make eccentric key mobile function with the eccentric self-locking of releasing activity spanner in keyway.
The anti-skidding adjustable wrench of the utility model is compared with existing up-to-date adjustable wrench technology, have simple in structure, processing is convenient, it is accurate rapidly to regulate folding, fundamentally solved the skidding of adjustable wrench, increased the service life of nut or bolt, improved the safety of operation, adjustable wrench can both be acted on applied force above the workpiece in maximum opening and minimum aperture scope efficiently.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the movable jaw structural representation.
Among the figure: 1. pull body; 2. fixing spanner; 3. movable jaw; 4. handle; 5. eccentric key; 6. stage clip; 7. keyway; 8. concave groove; 9. the semicircle face of keyway; 10. eccentric key boss; 11. eccentric key semicircular in shape face; 12. eccentric key cambered surface; 13. eccentric key boss top; 14. eccentric key spring hole; 15. be positioned at the spring eye of movable jaw boss; 16. movable jaw boss; 17. concave groove upper wall; 18. concave groove lower wall; 19. be positioned at the projection above the eccentric key; 20. breach.
The specific embodiment:
The utility model will be further described below in conjunction with accompanying drawing, but the utility model is not limited only to this embodiment:
As shown in Figure 1 and Figure 2, the utility model is by 1. wrench body; 2. fixing spanner; 3. movable jaw; 4. handle; 5. eccentric key; 6. stage clip and 19 is positioned at the projection composition above the eccentric key.Stage clip 6 one ends are injected the spring eye 15 that is arranged in movable jaw boss 16, the other end of stage clip 6 is inserted in the eccentric key spring hole 14, pushing eccentric key 5 makes stage clip 6 contractions that eccentric key 5 is embedded in the keyway 7, with movable jaw 3 and embed eccentric key 5 in its keyway 7 and stage clips 6 in the lump from the open concave groove 8 that pushes in concave groove 8 left sides, being pushed into fixedly, spanner 2 contacts with movable jaw 3, because the maximum distance between eccentric key boss top 13 and the eccentric key cambered surface 12 is greater than the distance between concave groove 8 upper walls 17 and the lower wall 18, as need open once more jaw then must be when pushing the projection 19 that is positioned at above the eccentric key with movable jaw 3 to stirring away from the fixing direction of spanner 2, because under the situation that does not have external force to exert pressure, because the tension force of stage clip makes eccentric key cambered surface 12 be against respectively on the upper wall 17 and lower wall 18 of concave groove 8 with eccentric key boss top 13, this moment, movable jaw 3 was with respect to fixedly forming self-locking between the spanner 2, movable jaw 3 is to away from fixedly spanner 2 directions are stressed big more, the active force that eccentric key cambered surface 12 and eccentric key boss top 13 act on concave groove 8 upper walls 17 and lower wall 18 is strong more, self-locking strength is big more, and movable jaw can not take place away from the fixing phenomenon of spanner; The back side that is positioned at eccentric key boss 10 is provided with a projection 19, adapt therewith, one breach 20 is arranged on the movable jaw, when when stirring this projection with stage clip tension force rightabout, make vertical range between eccentric key boss top 13 and the eccentric key cambered surface less than the vertical range between concave groove 8 upper walls 17 and the lower wall 18, this moment, movable jaw can be to moving away from fixing spanner 2 directions, when when the regular jaw direction promotes movable jaw 3, owing to be along the opposite direction application of force of stage clip tension force, be equal to and stir projection 19, eccentric key 5 can't be realized the function of its eccentric self-locking, this moment, movable jaw 3 was easy to be pushed to fixedly spanner 2 along concave groove 8, until when fixedly spanner 2 contacts only.
Claims (6)
1. the anti-skidding adjustable wrench of quick adjustment, by pulling body, fixing spanner, movable jaw, handle, eccentric key, spring is formed, and it is characterized in that: the movable jaw inboard is provided with keyway, the top semicircular in shape of keyway; One eccentric key is arranged in the keyway, and eccentric key has an end semicircular in shape cambered surface, and an end non-conterminous with it is cambered surface, and two faces between two cambered surfaces are parallel to each other, and are provided with spring between eccentric key and the keyway, and movable jaw adopts concavo-convex mode to be connected with pulling between the body.
2. the anti-skidding adjustable wrench of quick adjustment according to claim 1 is characterized in that: being between semicircle one end to it from eccentric key cambered surface one end has a boss.
3. the anti-skidding adjustable wrench of quick adjustment according to claim 2 is characterized in that: the ultimate range of eccentric key boss top and eccentric key cambered surface is greater than the distance of non-conterminous two faces of concave groove.
4. the anti-skidding adjustable wrench of quick adjustment according to claim 3 is characterized in that: concave groove has three faces.
5. the anti-skidding adjustable wrench of quick adjustment according to claim 1 is characterized in that: an end of keyway is open.
6. the anti-skidding adjustable wrench of quick adjustment according to claim 5 is characterized in that: the distance of two end points of the open end of keyway is greater than 2 times of the semicircle end radius length of keyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920216610XU CN201559149U (en) | 2009-09-14 | 2009-09-14 | Fast adjustment anti-skid monkey spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920216610XU CN201559149U (en) | 2009-09-14 | 2009-09-14 | Fast adjustment anti-skid monkey spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201559149U true CN201559149U (en) | 2010-08-25 |
Family
ID=42624295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920216610XU Expired - Fee Related CN201559149U (en) | 2009-09-14 | 2009-09-14 | Fast adjustment anti-skid monkey spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201559149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106363563A (en) * | 2016-10-18 | 2017-02-01 | 新昌县雄天机械有限公司 | Wrench capable of transforming jaw angle |
-
2009
- 2009-09-14 CN CN200920216610XU patent/CN201559149U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106363563A (en) * | 2016-10-18 | 2017-02-01 | 新昌县雄天机械有限公司 | Wrench capable of transforming jaw angle |
| CN106363563B (en) * | 2016-10-18 | 2018-09-11 | 新昌县雄天机械有限公司 | A kind of spanner of convertible jaw angle |
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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: 20100825 Termination date: 20110914 |