CN204149099U - A kind of antioverloading spanner - Google Patents
A kind of antioverloading spanner Download PDFInfo
- Publication number
- CN204149099U CN204149099U CN201420612367.4U CN201420612367U CN204149099U CN 204149099 U CN204149099 U CN 204149099U CN 201420612367 U CN201420612367 U CN 201420612367U CN 204149099 U CN204149099 U CN 204149099U
- Authority
- CN
- China
- Prior art keywords
- fixed block
- collet head
- bolt
- nut
- spring
- 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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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model relates to a kind of antioverloading spanner, comprises handle, fixed block, circular hole, screw hole, trip bolt, spring, collet head, annular groove.The utility model structure is simple, easy to use, when dismantling bolt, nut and being fastening, when spanner reaches certain limit to bolt, nut applied force square, collet head just can skid in fixed block, thus can effectively prevent because moment is excessive and cause bolt, nut to damage, and the size of the maximum moment of its load can be changed, so not only can reduce use cost, and the labour intensity of workmen can be reduced, be conducive to increasing work efficiency.
Description
Technical field
The utility model relates to a kind of spanner, and specifically a kind of antioverloading spanner, belongs to machine tool technical field.
Background technology
Often need to use spanner to dismantle bolt, nut in machine work and fastening.In production and life, widely used bolt, nut are mostly regular regular polygon structure at present, because workmen dismantles at use spanner bolt, nut and is difficult to control moment exactly in fastening process, often easily exceed bolt, maximum moment that nut can carry, the corner angle on bolt, nut outer wall are caused to damage, cause spanner to skid, bring unnecessary trouble to machine work.
Although at present the digital torque spanner produced and use in life can measure exactly and read bolt, moment that nut carries, due to the expensive and poor reliability of digital torque spanner, cannot use in machine work on a large scale.Therefore can effectively prevent moment excessive in the urgent need to a kind of and cause the spanner that bolt, nut damage.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of structure simple, easy to use, and the antioverloading spanner that can effectively prevent moment excessive and cause 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 spanner, comprise handle, fixed block, circular hole, screw hole, trip bolt, spring, collet head, annular groove, it is characterized in that: one end of described handle is provided with fixed block, one end of handle is fixedly connected with the side of fixed block, circular hole is provided with in fixed block, fixed block is provided with screw hole, trip bolt is provided with in screw hole, spring and collet head is provided with in circular hole, the outer wall of collet head is provided with annular groove, spring and collet head embedding are arranged on after in the circular hole in fixed block, trip bolt is through the screw hole be arranged on fixed block and embedding is arranged in the annular groove on collet head outer wall, spring and collet head are fixed in fixed block.
The drift of described spring is greater than the height of described fixed block.
The height of described fixed block is greater than the height of described collet head.
Described handle, circular hole, collet head are cylindrical structural.
The width of described annular groove is greater than the diameter of the screw rod of described trip bolt.
The height of described collet head is greater than the width of described annular groove.
The quantity of described screw hole is 3, and the quantity of trip bolt is 3.
Described spring is cylindrical helical spring.
The diameter of described circular hole is greater than the external diameter of described spring.
The diameter of described circular hole is greater than the external diameter of described collet head.
Compared with prior art, the utility model has following beneficial effect: structure is simple, easy to use, when dismantling bolt, nut and being fastening, when spanner reaches certain limit to bolt, nut applied force square, collet head just can skid in fixed block, thus can effectively prevent because moment is excessive and cause bolt, nut to damage, and the size of the maximum moment of its load can be changed, so not only use cost can be reduced, and the labour intensity of workmen can be reduced, be conducive to increasing work efficiency.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is stereochemical structure exploded perspective view of the present utility model.
In figure: 1-handle, 2-fixed block, 3-circular hole, 4-screw hole, 5-trip bolt, 6-spring, 7-collet head, 8-annular groove.
Detailed description of the invention
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 spanner, comprise handle 1, fixed block 2, circular hole 3, screw hole 4, trip bolt 5, spring 6, collet head 7, annular groove 8, it is characterized in that: one end of described handle 1 is provided with fixed block 2, one end of handle 1 is fixedly connected with the side of fixed block 2, circular hole 3 is provided with in fixed block 2, fixed block 2 is provided with screw hole 4, trip bolt 5 is provided with in screw hole 4, spring 6 and collet head 7 is provided with in circular hole 3, the outer wall of collet head 7 is provided with annular groove 8, spring 6 and collet head 7 embedding are arranged on after in the circular hole 3 in fixed block 2, trip bolt 5 is through the screw hole 4 be arranged on fixed block 2 and embedding is arranged in the annular groove 8 on collet head 7 outer wall, spring 6 and collet head 7 are fixed in fixed block 2.
The drift of described spring 6 is greater than the height of described fixed block 2.
The height of described fixed block 2 is greater than the height of described collet head 7.
Described handle 1, circular hole 3, collet head 7 are cylindrical structural.
The width of described annular groove 8 is greater than the diameter of the screw rod of described trip bolt 5.
The height of described collet head 7 is greater than the width of described annular groove 8.
The quantity of described screw hole 4 is 3, and the quantity of trip bolt 5 is 3.
Described spring 6 is cylindrical helical spring.
The diameter of described circular hole 3 is greater than the external diameter of described spring 6.
The diameter of described circular hole 3 is greater than the external diameter of described collet head 7.
When needs to be dismantled bolt, nut and are fastening, being aimed at by collet head 7 and being inserted in needs to be disassembled with in fastening bolt or nut, then turning handle 1 pair of bolt, nut are dismantled and fastening, when moment is greater than the frictional force at spring 6 pairs of collet head 7 tops, collet head 7 just can skid in fixed block 2, now increase moment in any case all can not to dismantle bolt, nut again and fastening, thus can effectively prevent because moment is excessive and cause 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, under the prerequisite not departing from 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 (2)
1. an antioverloading spanner, comprise handle (1), fixed block (2), circular hole (3), screw hole (4), trip bolt (5), spring (6), collet head (7), annular groove (8), it is characterized in that: one end of described handle (1) is provided with fixed block (2), one end of handle (1) is fixedly connected with the side of fixed block (2), circular hole (3) is provided with in fixed block (2), fixed block (2) is provided with screw hole (4), trip bolt (5) is provided with in screw hole (4), spring (6) and collet head (7) is provided with in circular hole (3), the outer wall of collet head (7) is provided with annular groove (8), spring (6) and collet head (7) embedding are arranged on after in the circular hole (3) in fixed block (2), trip bolt (5) is through the screw hole (4) be arranged on fixed block (2) and embedding is arranged in the annular groove (8) on collet head (7) outer wall, spring (6) and collet head (7) are fixed in fixed block (2).
2. a kind of antioverloading spanner according to claim 1, is characterized in that: the drift of described spring (6) is greater than the height of described fixed block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420612367.4U CN204149099U (en) | 2014-10-22 | 2014-10-22 | A kind of antioverloading spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420612367.4U CN204149099U (en) | 2014-10-22 | 2014-10-22 | A kind of antioverloading spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204149099U true CN204149099U (en) | 2015-02-11 |
Family
ID=52507251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420612367.4U Expired - Fee Related CN204149099U (en) | 2014-10-22 | 2014-10-22 | A kind of antioverloading spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204149099U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747670A (en) * | 2015-04-08 | 2015-07-01 | 广西玉柴机器股份有限公司 | Assisting device for adjusting belt tension |
-
2014
- 2014-10-22 CN CN201420612367.4U patent/CN204149099U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747670A (en) * | 2015-04-08 | 2015-07-01 | 广西玉柴机器股份有限公司 | Assisting device for adjusting belt tension |
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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: 20150211 Termination date: 20151022 |
|
| EXPY | Termination of patent right or utility model |