CN209056841U - Permanent torque thread clamping mechanism - Google Patents
Permanent torque thread clamping mechanism Download PDFInfo
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- CN209056841U CN209056841U CN201822010338.1U CN201822010338U CN209056841U CN 209056841 U CN209056841 U CN 209056841U CN 201822010338 U CN201822010338 U CN 201822010338U CN 209056841 U CN209056841 U CN 209056841U
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- bolt
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- bolt head
- torque
- attachment base
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Abstract
The utility model relates to electric power tool fields, specifically permanent torque thread clamping mechanism, including U-shaped attachment base, sliding block and hold-down mechanism, the opening opposite sides of attachment base is equipped with the guiding straight trough being inserted into for sliding block, hold-down mechanism includes bolt and dynamic pressure block, the back side of dynamic pressure block and the end of bolt are rotatably connected, bolt passes through sliding block and is threadedly coupled therewith, dynamic pressure block is opposite with attachment base and cooperatively forms thread clamping mechanism, bolt is equipped with the first bolt head and the second bolt head, and fracture is equipped between the first bolt head and the second bolt head.The beneficial effects of the utility model are: setting fracture and two bolt heads, it can according to need the maximum receiving torque for being pre-designed fracture, when to make to screw subassembly of lock bolt, reach fracture it is maximum bear torque when be broken and make the disengaging of the first bolt head, will not because screw torque it is excessive due to damage cable or thread clamping mechanism by pressure.
Description
Technical field
The utility model relates to electric power tool field, specifically permanent torque thread clamping mechanism.
Background technique
Thread clamping mechanism is used to electric power tool being fixedly mounted on cable, to be grounded to cable, the maintenance such as electrical verification
Operation, is the important component of electric power tool.Currently, thread clamping mechanism will be electric usually using the bolt of cooperation thread clamping mechanism ontology
Cable presses against on thread clamping mechanism ontology, to realize the fixation of thread clamping mechanism and cable.But current thread clamping mechanism spiral shell
Bolt usually can damage cable or thread clamping mechanism by pressure because screw-down torque is excessive when tightening, although at present there are also
Permanent torque wrench can preset the peak torque for tightening bolt, to solve the above problems, but that structure is complicated is expensive.
Utility model content
To solve the above-mentioned problems, the task of the utility model is to provide permanent torque thread clamping mechanism.
The utility model task is achieved through the following technical solutions:
The opening opposite sides of permanent torque thread clamping mechanism, including U-shaped attachment base, sliding block and hold-down mechanism, attachment base is set
There is guiding straight trough, sliding block can be from one end insertion of guiding straight trough to be embedded on attachment base, and the bottom of attachment base is first
Pressuring line groove, sliding block are equipped with screw hole, and hold-down mechanism includes bolt and dynamic pressure block, and the back side of dynamic pressure block and the end of bolt carry out can
Rotation connection, the front of dynamic pressure block are equipped with the second pressuring line groove, and bolt passes through the screw hole of sliding block and is threadedly coupled therewith, dynamic pressure
Second pressuring line groove of block and the first pressuring line groove of attachment base are opposite and cooperatively form thread clamping mechanism for clamping cable, the spiral shell
The rear end of bolt is successively arranged the first bolt head and the second bolt head along axial direction, is equipped between the first bolt head and the second bolt head disconnected
Portion is split, the peak torque that the fracture is able to bear is less than the peak torque that bolt other parts are able to bear, when the first spiral shell
When the torque that bolt head is born is greater than the peak torque that fracture is able to bear, fracture can be broken to make the first bolt head from spiral shell
It is detached from bolt.
It is preferred that the structure of the fracture is that the annular groove of the bolt outer surface is arranged in and/or is arranged in bolt
Internal inner hole.
The beneficial effects of the utility model are: setting fracture and two bolt heads, can according to need be pre-designed it is disconnected
It splits the maximum of portion and bears torque, thus when making to screw subassembly of lock bolt, it is i.e. disconnected in the maximum receiving torque for reaching fracture
Split and make the first bolt head be detached from, will not because screw torque it is excessive due to damage cable or thread clamping mechanism by pressure, and can need tear open
When unloading bolt, bolt can be unscrewed by the second bolt head counter force, avoid bolt that from can not dismantling and cause maintenance inconvenient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model perseverance torque thread clamping mechanism.
Wherein, hold-down mechanism 1, bolt 11, the first bolt head 111, the second bolt head 112, fracture 113, annular groove
1131, inner hole 1132, dynamic pressure block 12, the second pressuring line groove 121, attachment base 2, guiding straight trough 21, the first pressuring line groove 22, sliding block 3, spiral shell
Hole 31.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that saying that the specific embodiment of description is used only for explaining herein
The utility model is not used to limit the utility model.
As shown in Figure 1, permanent torque thread clamping mechanism, including U-shaped attachment base 2, sliding block 3 and hold-down mechanism 1, attachment base 2 are opened
Opposite sides is equipped with guiding straight trough 21 at mouthful, and sliding block 3 can be inserted into be embedded in attachment base 2 from one end of guiding straight trough 21
On, the bottom of attachment base 2 is the first pressuring line groove 22, and sliding block 3 is equipped with screw hole 31, and hold-down mechanism 1 includes bolt 11 and dynamic pressure block
12, the back side of dynamic pressure block 12 and the end of bolt 11 are rotatably connected, and the front of dynamic pressure block 12 is equipped with the second pressuring line groove
121, bolt 11 passes through the screw hole 31 of sliding block 3 and is threadedly coupled therewith, the second pressuring line groove 121 and attachment base of dynamic pressure block 12
2 the first pressuring line groove 22 is opposite and cooperatively forms thread clamping mechanism for clamping cable, and the rear end of bolt 11 is successively set along axial direction
There are the first bolt head 111 and the second bolt head 112, fracture 113 be equipped between the first bolt head 111 and the second bolt head 112,
The peak torque that fracture 113 is able to bear is less than the peak torque that 11 other parts of bolt are able to bear, when the first bolt head
When 111 torques born are greater than the peak torque that fracture 113 is able to bear, fracture 113 can be broken to make the first bolt
First 111 are detached from from bolt 11.
The structure of fracture 113 is that the annular groove 1131 of 11 outer surface of bolt is arranged in and is arranged in inside bolt 11
Inner hole 1132 certainly, may be otherwise to keep the wall thickness at fracture 113 smaller and be broken at first when bearing torque
Irregular shrinkage pool, fracture lines etc. are set at fracture 113, so that fracture 113 is broken at first when bearing torque.
First bolt head 111, the second bolt head 112 and fracture 113 are set, can according to need and be pre-designed fracture
The maximum receiving torque in portion 113 is reaching fracture in use, can first pass through the first bolt head 111 screws hold-down mechanism 1
It is broken from fracture 113 when 113 maximum receiving torque and is detached from the first bolt head 111, will not turned round in this way because screwing
Square is excessive and damages cable or thread clamping mechanism by pressure, so that torque when hold-down mechanism 1 screws tight is controllable, and can need to dismantle pressure
When tight mechanism 1, hold-down mechanism 1 can be unscrewed by 112 counter force of the second bolt head, avoid hold-down mechanism 1 can not dismantle and
Cause maintenance inconvenient.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that utility model range involved in the application, however it is not limited to made of the specific combination of above-mentioned technical characteristic
Technical solution, at the same should also cover do not depart from the utility model design in the case where, by above-mentioned technical characteristic or its be equal
Feature carries out any combination and other technical solutions for being formed.Such as features described above and (but being not limited to) disclosed herein have
The technical solution for thering is the technical characteristic of similar functions to be replaced mutually and being formed.
Claims (2)
1. permanent torque thread clamping mechanism, which is characterized in that including U-shaped attachment base, sliding block and hold-down mechanism, the opening phase of attachment base
Guiding straight trough is equipped with to two sides, sliding block can be inserted into be embedded on attachment base from one end of guiding straight trough, the bottom of attachment base
Portion is the first pressuring line groove, and sliding block is equipped with screw hole, and hold-down mechanism includes bolt and dynamic pressure block, the back side of dynamic pressure block and the end of bolt
Portion is rotatably connected, and the front of dynamic pressure block is equipped with the second pressuring line groove, and bolt passes through the screw hole of sliding block and carries out screw thread therewith
Connection, the second pressuring line groove of dynamic pressure block and the first pressuring line groove of attachment base are opposite and cooperatively form wire holding machine for clamping cable
The rear end of structure, the bolt is successively arranged the first bolt head and the second bolt head, the first bolt head and the second bolt head along axial direction
Between be equipped with fracture, what the peak torque that the fracture is able to bear was less than that bolt other parts are able to bear maximum turns round
Square, when the torque that the first bolt head is born is greater than the peak torque that fracture is able to bear, fracture can be broken to make the
One bolt head is detached from from bolt.
2. permanent torque thread clamping mechanism according to claim 1, which is characterized in that the structure of the fracture is to be arranged described
The annular groove of bolt outer surface and/or the inner hole being arranged in inside bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822010338.1U CN209056841U (en) | 2018-11-30 | 2018-11-30 | Permanent torque thread clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822010338.1U CN209056841U (en) | 2018-11-30 | 2018-11-30 | Permanent torque thread clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209056841U true CN209056841U (en) | 2019-07-02 |
Family
ID=67054680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822010338.1U Active CN209056841U (en) | 2018-11-30 | 2018-11-30 | Permanent torque thread clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209056841U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390871A (en) * | 2018-11-30 | 2019-02-26 | 广州勇艺邦电子科技有限公司 | A kind of perseverance torque thread clamping mechanism |
-
2018
- 2018-11-30 CN CN201822010338.1U patent/CN209056841U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390871A (en) * | 2018-11-30 | 2019-02-26 | 广州勇艺邦电子科技有限公司 | A kind of perseverance torque thread clamping mechanism |
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