CN103372831B - A kind of cam self-locking monkey wrench - Google Patents
A kind of cam self-locking monkey wrench Download PDFInfo
- Publication number
- CN103372831B CN103372831B CN201210139269.9A CN201210139269A CN103372831B CN 103372831 B CN103372831 B CN 103372831B CN 201210139269 A CN201210139269 A CN 201210139269A CN 103372831 B CN103372831 B CN 103372831B
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- CN
- China
- Prior art keywords
- lip
- guide rod
- handle
- removable guide
- cam
- 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 present invention relates to a kind of cam self-locking monkey wrench, mainly comprise Flexible spanner lip (1), fixedly pull lip (2), removable guide rod (3), spring (4), bearing pin (5), circular arc end cap (6), handle (7), bearing pin (8), torque spring (9), bolt (10), bolt (11).The upper end of fixedly pulling lip (2) and removable guide rod (3) is provided with can intermeshing tooth-shape structure region, the upper end of handle (7) is provided with a cam structure, cam structure top is provided with a protruding arc structure, the bottom of removable guide rod (3) is provided with an arcs of recesses structure, and the protruding arc structure of handle (7) can be embedded in the arcs of recesses structure of removable guide rod (3).The present invention can Automatic adjusument spanner pull a mouthful size, the effect can passing through handle (7) upper end cam mechanism realizes pulling the self-locking of mouth.
Description
Technical field:
The present invention relates to a kind of spanner, particularly relate to a kind of cam self-locking monkey wrench.
Background technology:
At present, in mechanical field, the application of spanner widely, especially tighten with loose unloading bolt, nut impact extensively.The spanner of normal use has combination wrenches, two open-end wrench, single-end spanner, hook spanner etc., suffer from the difference by bolt, nut size specification all the time, have to change according to the size of bolt, nut the spanner of different model, cause spanner of a great variety, also bring inconvenience to operation.Along with the development of spanner, there is adaptable normal activity spanner.Although its openings of sizes of normal activity spanner can regulate, but need when operating first to regulate according to the size of actual bolt, nut and pull a mouthful size, be difficult to be adjusted to correct size during working expenditure, and there is gap owing to regulating between the screw mechanism of wrench opening and movable spanner, operate very dumb.
Summary of the invention:
The present invention is the deficiency existed to solve above-mentioned technical background, can be pinned pull a mouthful size by the cam mechanism self adaptation of handle upper end, easy to operate, has wide range of applications.The present invention is achieved by the following technical solutions:
A kind of cam self-locking monkey wrench of the present invention content Description: whole monkey wrench, by Flexible spanner lip 1, fixedly pulls lip 2, removable guide rod 3, spring 4, bearing pin 5, circular arc end cap 6, handle 7, bearing pin 8, torque spring 9, and bolt 10, bolt 11 forms.Flexible spanner lip 1 can around bearing pin 8 with fixedly pull lip 2 and relatively rotate, fixedly pull on lip 2 and be provided with tooth-shape structure region, handle 7 can rotate around bearing pin 5, removable guide rod 3 can in the cylindrical slideway of Flexible spanner lip 1 resilient movement, in cylindrical slideway, be provided with spring 4, the tension force of spring 4 is greater than the tension force of torque spring 9.The top of removable guide rod 3 is provided with tooth-shape structure, there is a very little arcs of recesses structure bottom, the top of removable guide rod 3 can be engaged with the tooth-shape structure region of fixed head lip 2, the upper end of handle 7 is provided with a cam structure, be provided with a very little protruding arc structure in the top of cam structure, the protruding arc structure of handle 7 can be embedded in the bottom arcs of recesses structure of removable guide rod 3.There is an opening lower end of circular arc end cap 6, and the two ends of circular arc end cap 6 are fixed on Flexible spanner lip 1 by bolt 10, bolt 11.In monkey wrench, the material in the tooth-shape structure region contacted easy to wear is the alloy that intensity is higher.
The invention has the beneficial effects as follows: the present invention can Automatic adjusument monkey wrench pull a mouthful size, and arc-shaped convex structural embeddedness in handle 7 upper end to the arcs of recesses structure of removable guide rod 3 time, the tooth-shape structure of removable guide rod 3 upper end just in time engages with the tooth-shape structure region of fixedly pulling lip 1, the mouth of pulling of monkey wrench is fixed, the lockup state quite stable of Flexible spanner lip 1, locking and loose unloading process flexible, can meet the bolt of different size, nut.
Accompanying drawing illustrates:
Fig. 1 is the top view of structure open mode of the present invention.
Fig. 2 is A-A sectional view.
In figure:
1-Flexible spanner lip, 2-fixedly pulls lip, the removable guide rod of 3-, 4-spring, 5-bearing pin, 6-circular arc end cap, 7-handle, 8-bearing pin, 9-torque spring, 10-bolt, 11-bolt
Fig. 3 is the sectional view of mechanism's closure state.
Fig. 4 is overall structure schematic diagram of the present invention.
Fig. 5 is the structural representation of Flexible spanner lip.
Fig. 6 is the structural representation of removable guide rod.
Fig. 7 is the structural representation of handle.
Fig. 8 is the structural representation of circular arc end cap.
Detailed description of the invention:
Be described further referring to accompanying drawing 2 pairs of embodiments of the present invention:
As shown in Figure 2, the present invention, by Flexible spanner lip 1, fixedly pulls lip 2, removable guide rod 3, spring 4, bearing pin 5, circular arc end cap 6, handle 7, bearing pin 8, torque spring 9, and bolt 10, bolt 11 forms.Before using, Flexible spanner lip 1 is in open configuration under the tension force of torque spring 9, and handle 7 is positioned at the position, end top of circular arc end cap 6 lower ending opening.When carrying out operation to bolt or nut, tension force due to spring 4 is greater than the tension force of torque spring 9, Flexible spanner lip 1 first rotates around bearing pin 8 under the effect of handle 7, when Flexible spanner lip 1 turn to contact with bolt or nut time, Flexible spanner lip 1 stops operating, now, continue the active force increasing handle 7, handle 7 starts to rotate and Compress Spring 4 promotes removable guide rod 3 and moving upward around bearing pin 5, when the protruding arc-shaped structure on handle 7 top mutually to embed with the arcs of recesses structure of removable guide rod 3 bottom and just in time make the tooth-shape structure of removable guide rod 3 upper end with fixedly pull lip 2 engage time, Flexible spanner lip 1 is in locking state completely, just operation can be carried out to bolt or nut.When if desired unclamping Flexible spanner lip 1, apply a reverse active force to handle 7, spring 4 can rotate backward by driving handle 7, and removable guide rod 3 is just separated with the profile of tooth mesh regional fixedly pulling lip 2, lockup state is eliminated, and Flexible spanner lip 1 is in releasing orientation again under the effect of torque spring 9.
Claims (3)
1. a cam self-locking monkey wrench, by Flexible spanner lip (1), fixedly pull lip (2), removable guide rod (3), spring (4), bearing pin (5), circular arc end cap (6), handle (7), bearing pin (8), torque spring (9), bolt (10), bolt (11) forms, it is characterized in that: described Flexible spanner lip (1) by bearing pin (8) with fixedly pull lip (2) and be connected, Flexible spanner lip (1) is embedded into fixedly to be pulled in lip (2), removable guide rod (3) is in the cylindrical slideway of Flexible spanner lip (1), the lower end of circular arc end cap (6) is provided with an opening.
2. a kind of cam self-locking monkey wrench according to claim 1, is characterized in that: the upper end of described removable guide rod (3) is provided with tooth-shape structure, and the lower end of removable guide rod (3) is provided with an arcs of recesses structure.
3. a kind of cam self-locking monkey wrench according to claim 1, is characterized in that: the upper end of described handle (7) is provided with a cam structure, and the top of cam structure is provided with the arc-shaped structure of a projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210139269.9A CN103372831B (en) | 2012-04-28 | 2012-04-28 | A kind of cam self-locking monkey wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210139269.9A CN103372831B (en) | 2012-04-28 | 2012-04-28 | A kind of cam self-locking monkey wrench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103372831A CN103372831A (en) | 2013-10-30 |
| CN103372831B true CN103372831B (en) | 2015-07-29 |
Family
ID=49458988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210139269.9A Expired - Fee Related CN103372831B (en) | 2012-04-28 | 2012-04-28 | A kind of cam self-locking monkey wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103372831B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109551411A (en) * | 2019-01-14 | 2019-04-02 | 中国电子科技集团公司第三十八研究所 | A kind of torque spanner with regulation handle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB256668A (en) * | 1925-04-16 | 1926-08-16 | Arthur William Smith | An improved adjustable spanner or wrench |
| US2112873A (en) * | 1936-11-07 | 1938-04-05 | Wright Jerauld | Tool |
| US2475866A (en) * | 1946-08-02 | 1949-07-12 | B M C Mfg Corp | Cam lever actuated pivoted jaw wrench |
| GB1013636A (en) * | 1962-12-12 | 1965-12-15 | Jean Allegraud | Adjustable spanner |
| CN202528100U (en) * | 2012-04-28 | 2012-11-14 | 山东科技大学 | Cam self-locking monkey wrench |
-
2012
- 2012-04-28 CN CN201210139269.9A patent/CN103372831B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB256668A (en) * | 1925-04-16 | 1926-08-16 | Arthur William Smith | An improved adjustable spanner or wrench |
| US2112873A (en) * | 1936-11-07 | 1938-04-05 | Wright Jerauld | Tool |
| US2475866A (en) * | 1946-08-02 | 1949-07-12 | B M C Mfg Corp | Cam lever actuated pivoted jaw wrench |
| GB1013636A (en) * | 1962-12-12 | 1965-12-15 | Jean Allegraud | Adjustable spanner |
| CN202528100U (en) * | 2012-04-28 | 2012-11-14 | 山东科技大学 | Cam self-locking monkey wrench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103372831A (en) | 2013-10-30 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20150729 Termination date: 20180428 |
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| CF01 | Termination of patent right due to non-payment of annual fee |