CN203566575U - Anti-overload socket spanner - Google Patents
Anti-overload socket spanner Download PDFInfo
- Publication number
- CN203566575U CN203566575U CN201320689180.XU CN201320689180U CN203566575U CN 203566575 U CN203566575 U CN 203566575U CN 201320689180 U CN201320689180 U CN 201320689180U CN 203566575 U CN203566575 U CN 203566575U
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- CN
- China
- Prior art keywords
- connecting rod
- bolt
- nut
- spanner
- annular groove
- 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-overload socket spanner. The anti-overload socket spanner comprises a hand shank, a connecting rod, a socket head, a spring, a fastening screw and an annular groove, wherein the connecting rod is provided with a cylindrical hollow structure, one end of the connecting rod is vertically and fixedly connected with the middle of the hand shank, the socket head and the spring are arranged in the connecting rod, the outside of the socket head is provided with the annular groove, the width of the annular groove is larger than the diameter of a threaded rod of the fastening screw, and the free length of the spring is larger than the length of the connecting rod. The anti-overload socket spanner is simple in structure and convenient to use, in the process of detaching or fastening a bolt and a nut, when the moment exerted on the bolt and the nut by the spanner reaches to a certain limit, the socket head will slip in the connecting rod, so that it is effectively avoided that the bolt and the nut are damaged due to the overlarge moment, in this way, not only can use cost be reduced, but also labor intensity of constructors can be reduced, and the anti-overload socket spanner is beneficial for improving working efficiency.
Description
Technical field
The utility model relates to a kind of spanner, and specifically a kind of antioverloading box spanner, belongs to machine tool technical field.
Background technology
In machine work, often need to use box spanner bolt, nut to be dismantled and fastening.In producing and living, widely used bolt, nut are mostly regular regular polygon structure at present, due to workmen use box spanner bolt, nut are dismantled and fastening process in be difficult to control moment exactly, often easily exceed the maximum moment that bolt, nut can carry, cause the corner angle on bolt, nut outer wall to damage, cause spanner to skid, to machine work, bring unnecessary trouble.
Although at present produce and life in the digital torque spanner that uses can measure exactly and read the moment that bolt, nut carry, because digital torque spanner is expensive and poor reliability, cannot in machine work, use on a large scale.Therefore in the urgent need to a kind of box spanner that can effectively prevent that moment is excessive and cause bolt, nut to damage.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of simple in structure, easy to use, and can effectively prevent that moment is excessive and the antioverloading box spanner that causes bolt, nut to damage.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of antioverloading box spanner, comprise handle, connecting rod, collet head, spring, trip bolt, annular groove, described connecting rod is provided with cylindrical hollow configuration, vertical being fixedly connected with in middle part of one end and handle, inside is provided with collet head and spring, and the outside of described collet head is provided with annular groove.
The width of described annular groove is greater than the diameter of the screw rod of described trip bolt.
The drift of described spring is greater than the length of described connecting rod.
Compared with prior art, the utlity model has following beneficial effect: simple in structure, easy to use, bolt, nut are dismantled and fastening in, when spanner reaches certain limit to bolt, nut applied force square, collet head just can skid in connecting rod, thereby can effectively prevent from causing because moment is excessive bolt, nut to damage, so not only can reduce use cost, and can reduce workmen's labour intensity, be conducive to increase work efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is STRUCTURE DECOMPOSITION schematic diagram of the present utility model.
In figure: 1-handle, 2-connecting rod, 3-collet head, 4-spring, 5-trip bolt, 6-annular groove.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of antioverloading box spanner, comprise handle 1, connecting rod 2, collet head 3, spring 4, trip bolt 5, annular groove 6, described connecting rod 2 is provided with cylindrical hollow configuration, vertical being fixedly connected with in middle part of one end and handle 1, inside is provided with collet head 3 and spring 4, and the outside of described collet head 3 is provided with annular groove 6.
The width of described annular groove 6 is greater than the diameter of the screw rod of described trip bolt 5.
The drift of described spring 4 is greater than the length of described connecting rod 2.
When needs are dismantled bolt, nut and are fastening, by collet head 3 aim at and be inserted in need to be disassembled with fastening bolt, nut in, then turning handle 1 pair of bolt, nut is dismantled and is fastening, when moment is greater than the frictional force of 4 pairs of collet heads 3 of spring, collet head 3 just can skid in connecting rod 2, now increase in any case that moment all can not be dismantled bolt, nut and fastening again, thereby can effectively prevent from causing because moment is excessive bolt, nut to damage.
The above is preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (3)
1. an antioverloading box spanner, comprise handle (1), connecting rod (2), collet head (3), spring (4), trip bolt (5), annular groove (6), it is characterized in that: the outside of described collet head (3) is provided with annular groove (6).
2. a kind of antioverloading box spanner according to claim 1, is characterized in that: the width of described annular groove (6) is greater than the diameter of the screw rod of described trip bolt (5).
3. a kind of antioverloading box spanner according to claim 1, is characterized in that: the drift of described spring (4) is greater than the length of described connecting rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689180.XU CN203566575U (en) | 2013-10-26 | 2013-10-26 | Anti-overload socket spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689180.XU CN203566575U (en) | 2013-10-26 | 2013-10-26 | Anti-overload socket spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203566575U true CN203566575U (en) | 2014-04-30 |
Family
ID=50534333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320689180.XU Expired - Fee Related CN203566575U (en) | 2013-10-26 | 2013-10-26 | Anti-overload socket spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203566575U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196244A (en) * | 2015-11-03 | 2015-12-30 | 南岳电控(衡阳)工业技术有限公司 | Tool for replacing air plug of mold |
| CN106737354A (en) * | 2015-11-24 | 2017-05-31 | 中国人民解放军军械工程学院 | Overload failure type pinch bar |
-
2013
- 2013-10-26 CN CN201320689180.XU patent/CN203566575U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196244A (en) * | 2015-11-03 | 2015-12-30 | 南岳电控(衡阳)工业技术有限公司 | Tool for replacing air plug of mold |
| CN106737354A (en) * | 2015-11-24 | 2017-05-31 | 中国人民解放军军械工程学院 | Overload failure type pinch bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140430 Termination date: 20141026 |
|
| EXPY | Termination of patent right or utility model |