CN212429462U - Quick bolt - Google Patents
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- CN212429462U CN212429462U CN202020629717.3U CN202020629717U CN212429462U CN 212429462 U CN212429462 U CN 212429462U CN 202020629717 U CN202020629717 U CN 202020629717U CN 212429462 U CN212429462 U CN 212429462U
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- wall
- mandrel
- limiting
- limiting ring
- outer tube
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Abstract
The utility model relates to a quick bolt, including outer tube, dabber and reset spring, establish at the inner wall of outer tube inwards that the arch forms first spacing ring and second spacing ring, be equipped with two at least radial through-holes along the circumference interval at the pipe wall of outer tube, correspond each radial through-hole in the outer tube and inlay respectively and establish a spacing ball, outwards protruding establishing the spacing portion of formation at the first end outer wall of outer tube. The mandrel can be axially and slidably sleeved in the outer tube, the first end of the mandrel can penetrate through the first limiting ring and extend to the outside of the outer tube, and the outer wall of the mandrel is outwards convexly provided to form a third limiting ring. The side wall of the second end of the mandrel can abut against the inner side end of the limiting ball, an annular groove is formed in the outer wall of the mandrel along the circumferential direction, and the limiting balls can be embedded in the annular groove. Two ends of the reset spring are respectively propped between the third limiting ring and the second limiting ring. The utility model discloses a quick bolt can make dismouting reaction torque arm become labour saving and time saving more, has improved power tap's operating efficiency.
Description
Technical Field
The utility model relates to an installation technical field of reaction torque arm especially relates to a quick bolt.
Background
The reaction torque arm on the power tap is a device for connecting the power tap and the steel wire rope, and the reaction torque arm is inserted at one side or two sides of the power tap. As shown in fig. 1 and 2, a part of a general reaction torque arm 01 is a solid structure, the other part is a hollow pipe structure 011, a solid shaft 02 extends outwards from a power tap, and bolt holes are arranged on the pipe wall of the hollow pipe structure 011 and on the solid shaft 02. When the reaction torque arm 01 is fixed with the power faucet, the hollow tube structure 011 of the reaction torque arm 01 is sleeved on the solid shaft 02 of the power faucet, and then the bolt 03 is inserted into the bolt hole and then fixed through the nut 04. During use, it is necessary to tighten both ends of the bolt 03 simultaneously.
At present, the mounting and dismounting of the reaction torque arm mainly use an adjustable wrench or a dead wrench, but only one third of the torque arm can be screwed at each time, and the reaction torque arm needs to be repeatedly dismounted and mounted, so that the labor intensity of workers is increased, the working time of the workers is prolonged, the working cost is improved, and the working efficiency of the power faucet is influenced.
Therefore, the inventor provides a quick bolt by virtue of experience and practice of related industries for many years so as to overcome the defects in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a quick bolt can make dismouting reaction torque arm become labour saving and time saving more, has improved power tap's operating efficiency.
The utility model aims at realizing like this, a quick bolt, include:
the inner wall of the first end of the outer pipe is inwards convexly provided with a first limiting ring, and the position of the inner wall of the outer pipe, which is close to the second end of the outer pipe, is inwards convexly provided with a second limiting ring; at least two radial through holes are formed in the wall of the outer pipe between the second limiting ring and the second end of the outer pipe at intervals along the circumferential direction, a limiting ball is embedded in the outer pipe corresponding to each radial through hole, and the diameter of each limiting ball is larger than the aperture of each radial through hole; the outer wall of the first end of the outer pipe is outwards convexly provided with a limiting part;
the mandrel can be axially sleeved in the outer tube in a sliding manner, the first end of the mandrel can penetrate through the first limiting ring and extend to the outside of the outer tube, a third limiting ring is formed on the outer wall of the mandrel in a protruding manner at a position close to the first end of the mandrel, and the third limiting ring is positioned between the first limiting ring and the second limiting ring and can abut against the first limiting ring; the side wall of the second end of the mandrel can abut against the inner side end of the limiting ball, an annular groove is formed in the outer wall of the mandrel and in the position close to the second end of the mandrel along the circumferential direction, and the limiting balls can be embedded in the annular groove;
and the reset spring is sleeved between the outer wall of the mandrel and the inner wall of the outer pipe, and two ends of the reset spring respectively abut against the third limiting ring and the second limiting ring.
In a preferred embodiment of the present invention, the limiting ball is a metal ball, and the bottom of the annular groove is a magnetized surface.
In a preferred embodiment of the present invention, a tapered surface tapering from the second end to the first end is formed on the outer wall of the mandrel adjacent to the second end, and the tapered surface forms the bottom of the annular groove.
In a preferred embodiment of the present invention, the hole wall of the radial through hole is an arc-shaped surface, and the radial through hole is in the shape of a horn gradually expanding inwards.
In a preferred embodiment of the present invention, the outer tube includes a cap and a casing, the first limiting ring is formed on an inner wall of a first end of the cap, and a second end of the cap is fixed to the first end of the casing; the second limiting ring is formed on the inner wall of the protective cylinder, the radial through hole is formed in the pipe wall of the protective cylinder, and the limiting part is formed on the outer side of the cap.
In a preferred embodiment of the present invention, the outer diameter of the cap is larger than the outer diameter of the casing, and the part of the cap protruding outward from the casing constitutes the limiting portion.
In a preferred embodiment of the present invention, a handle is formed on the outer wall of the cap and extends radially outward, and the handle constitutes the above-mentioned limiting portion.
In a preferred embodiment of the present invention, the second end of the cap is screwed to the first end of the casing.
In a preferred embodiment of the present invention, the second end of the cap is welded to the first end of the casing.
The utility model discloses an in the preferred embodiment, the material of outer tube and dabber is high strength alloy steel, and reset spring's material is high strength spring steel.
From the above, the rapid bolt in the utility model can realize the radial movement of the limiting ball through the axial sliding of the mandrel, when the limiting ball is retracted to the inside of the outer tube radially and completely, the whole outer tube can be inserted or pulled out in the bolt hole of the reactive torque arm smoothly; when the limiting ball extends outwards in the radial direction, the reaction torque arm and the power tap can be locked and fixed through the limiting effect of the limiting ball and the limiting part. Adopt monkey wrench or dead spanner to carry out the installation of reaction torque arm and the mode of dismantlement among the prior art to compare, the utility model provides a quick bolt can make dismouting reaction torque arm become labour saving and time saving more, has improved power tap's operating efficiency, and whole instrument simple structure, and is easy and simple to handle.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
FIG. 1: the structure schematic diagram of the reaction torque arm and the solid shaft of the power tap in the prior art is shown.
FIG. 2: a partial cross-sectional view of a prior art reaction torque arm fixed to a solid shaft of a power swivel.
FIG. 3: do the utility model provides a front view of quick bolt.
FIG. 4: do the utility model provides a side view of quick bolt.
FIG. 5: do the utility model provides a cross-sectional view of quick bolt.
FIG. 6: do the utility model provides a cross-sectional view of dabber.
FIG. 7: do the utility model provides a cross-sectional view of block.
The reference numbers illustrate:
01. a reaction torque arm; 011. a hollow pipe structure; 02. a solid shaft; 03. a bolt; 04. a nut;
1. an outer tube; 11. capping; 111. a first limit ring; 112. a handle; 12. protecting the cylinder; 121. a second stop collar;
2. a limiting ball;
3. a mandrel; 31. a third limit ring; 32. an annular groove;
4. a return spring.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 3 to 6, the present embodiment provides a quick bolt, which includes an outer tube 1, a mandrel 3 and a return spring 4.
A first limiting ring 111 is formed on the inner wall of the first end of the outer tube 1 in an inward protruding manner, and a second limiting ring 121 is formed on the inner wall of the outer tube 1 in an inward protruding manner and at a position adjacent to the second end thereof. At least two radial through holes are formed in the wall of the outer pipe 1 and between the second limiting ring 121 and the second end of the outer pipe, the limiting ball 2 is embedded in the outer pipe 1 corresponding to each radial through hole, the diameter of each limiting ball 2 is larger than the diameter of each radial through hole, and the limiting ball 2 is prevented from falling. The outer wall of the first end of the outer tube 1 is provided with a limiting part in an outward protruding mode.
The mandrel 3 can be axially slidably sleeved in the outer tube 1, the first end of the mandrel 3 can pass through the first limiting ring 111 and extend to the outside of the outer tube 1, a third limiting ring 31 is formed at the outer wall of the mandrel 3 and at the position adjacent to the first end of the mandrel 3 in an outward protruding mode, and the third limiting ring 31 is located between the first limiting ring 111 and the second limiting ring 121 and can abut against the first limiting ring 111. The side wall of the second end of the mandrel 3 can abut against the inner side end of the limiting ball 2, an annular groove 32 is formed in the outer wall of the mandrel 3 and in the position close to the second end of the mandrel along the circumferential direction, and the limiting balls 2 can be embedded in the annular groove 32. The reset spring 4 is sleeved between the outer wall of the mandrel 3 and the inner wall of the outer tube 1, and two ends of the reset spring 4 respectively prop against between the third limiting ring 31 and the second limiting ring 121.
Specifically, at the initial position, the return spring 4 is always in a compressed state, the third limit ring 31 abuts against the first limit ring 111 under the action of the elastic force of the return spring 4, the first end of the mandrel 3 extends outwards for the maximum displacement, and the second end side wall of the mandrel 3 abuts against the inner end side of the limit ball 2 at the moment, so that the limit ball 2 extends outwards and is located at the radial maximum displacement. When the reaction torque arm 01 is fixed by the quick bolt, the hollow tube structure 011 of the reaction torque arm 01 is sleeved on the solid shaft 02 of the power tap, then an operator presses the first end of the mandrel 3 inwards, the mandrel 3 slides towards the direction close to the second end of the outer tube 1, and until the annular groove 32 is just opposite to the position of the limiting ball 2, the limiting ball 2 is embedded in the annular groove 32, so that the limiting ball 2 is completely retracted into the outer tube 1.
The outer tube 1 is then inserted into the hollow tube structure 011 of the torque reacting arm 01 and the latch hole of the solid shaft 02 of the power swivel until the stop ball 2 passes completely through the latch hole. Then the staff loosens the pressure to dabber 3 first end, and under the effect of reset spring 4, dabber 3 slides towards the direction of keeping away from outer tube 1 second end, returns initial position, and limiting ball 2 radially outwards stretches out maximum displacement. At the moment, each limiting ball 2 is abutted against one side of the hollow tube structure 011 of the reaction torque arm 01, which is equivalent to the action of a nut 04, and the limiting part at the first end of the outer tube 1 is abutted against the other side of the hollow tube structure 011 of the reaction torque arm 01, which is equivalent to the head part of a bolt 03, so that the locking of the reaction torque arm 01 and the power tap is realized.
When the quick bolt needs to be pulled out, an operator presses the first end of the mandrel 3 inwards, and the mandrel 3 slides towards the direction close to the second end of the outer tube 1 until the limiting ball 2 is completely retracted into the outer tube 1. Then pull out the bolt hole with outer tube 1 is whole, the staff can loosen the press to 3 first ends of dabber, under reset spring 4's effect, dabber 3 slides towards the direction of keeping away from 1 second end of outer tube, gets back to initial position, realizes pulling out smoothly of quick bolt.
Therefore, the rapid bolt in the embodiment can realize the radial movement of the limiting ball 2 through the axial sliding of the mandrel 3, and when the limiting ball 2 is completely retracted into the outer tube 1 radially inwards, the whole outer tube 1 can be smoothly inserted into or pulled out of the bolt hole of the torque reflecting arm 01; when the limiting ball 2 extends outwards in the radial direction, the reaction torque arm 01 and the power tap can be locked and fixed through the limiting effect of the limiting ball 2 and the limiting part. Compare with the mode that adopts monkey wrench or dead spanner to carry out the installation of anti-torque arm 01 and dismantle among the prior art, quick bolt in this embodiment can make dismouting anti-torque arm 01 become labour saving and time saving more, has improved power tap's operating efficiency, and whole instrument simple structure, and is easy and simple to handle.
It should be noted that the quick bolt in this embodiment may be applied to fixing the reaction torque arm 01 and the power faucet, and may also be applied to fixing the hollow tube structure and the solid shaft structure with other bolt holes in an inserting manner, which is only an example.
In a specific implementation manner, in order that the limiting ball 2 can be quickly retracted into the outer tube 1 when the mandrel 3 slides towards the direction close to the second end of the outer tube 1, the limiting ball 2 is a metal ball, and the bottom of the annular groove 32 is a magnetized surface. The metal ball can be an iron ball, and other metal materials can be adopted according to the requirement. The number of the limiting balls 2 can be determined according to actual needs, for example, two limiting balls 2 are symmetrically arranged in the embodiment. The magnetized surface is formed by magnetizing the bottom of the annular groove 32, and the specific magnetizing process is the prior art and is not described herein again.
Like this, when operating personnel inwards pressed the first end of dabber 3 and made dabber 3 slide towards the direction that is close to outer tube 1 second end, the metal ball is attracted by the magnetization face, takes place radial displacement fast and withdraws in outer tube 1 completely, and whole quick bolt just can insert or extract in the bolt hole more fast more easily.
In order to ensure the strength of the mandrel 3 and simultaneously ensure the complete retraction and smooth extension of the stop ball 2, in practical applications, as shown in fig. 5 and 6, a tapered surface which is tapered from the second end to the first end is formed on the outer wall of the mandrel 3 at a position adjacent to the second end, and the tapered surface forms the groove bottom of the annular groove 32.
The cross section of the groove bottom of the annular groove 32 may be a right triangle, and the inclined plane of the right triangle is formed by the projection of the above conical surface. The right triangle has a long right-angle side and a short right-angle side, the short right-angle side forms a step part facing the second end of the mandrel 3, and the width of the step part is less than or equal to the diameter of the limiting ball 2. The tapered surface is formed by turning a portion of the mandrel 3 directly on the outer wall thereof adjacent the second end thereof during machining and magnetizing the same. Of course, the annular groove 32 may take other shapes as needed, and this embodiment is merely illustrative.
Further, in order to better clamp the limiting ball 2 and enable the limiting ball to radially extend out more at the same time, so as to ensure the limiting effect, as shown in fig. 5, the hole wall of the radial through hole is an arc-shaped surface, and the radial through hole is in a horn shape gradually expanding inwards.
For convenience of processing and installation, as shown in fig. 3 to 5 and 7, the outer tube 1 includes a cap 11 and a casing 12, the first limiting ring 111 is formed on the inner wall of the first end of the cap 11, the second end of the cap 11 is fixed to the first end of the casing 12, the second limiting ring 121 is formed on the inner wall of the casing 12, the radial through hole is opened on the tube wall of the casing 12, and the limiting portion is formed on the outer side of the cap 11.
Specifically, the above-mentioned stopper portion may be formed in two ways:
first, the outer diameter of the cap 11 is larger than that of the casing 12, and the portion of the cap 11 protruding outward from the casing 12 constitutes the above-mentioned stopper. Second, a handle 112 is formed on the outer wall of the cap 11 to extend radially outward, and the handle 112 constitutes the above-mentioned stopper. At this time, the operator can hold the handle 112 with his hand and press the first end of the mandrel 3 with his thumb during operation, which is more convenient for operation. Of course, the above-mentioned limiting portion may be formed in other manners as long as it can perform the limiting function, and the present invention does not limit this.
As for the fixing manner of the cap 11 and the first end of the casing 12, the second end of the cap 11 and the first end of the casing 12 may be screwed, the second end of the cap 11 and the first end of the casing 12 may be welded, or other fixing manners may be adopted, and this embodiment is merely an example.
Furthermore, the outer pipe 1 and the mandrel 3 are made of alloy steel, and preferably made of high-strength alloy steel, so that the whole quick bolt cannot be sheared to lose efficacy in the operation process of the power faucet, and the operation safety of the power faucet is guaranteed; reset spring 4's material is the spring steel, preferably adopts high strength spring steel to guarantee that whole quick bolt can not become invalid and withdraw from, guarantee its effective locking effect.
The above are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.
Claims (10)
1. A quick bolt, comprising:
the inner wall of the first end of the outer pipe is inwards convexly provided with a first limiting ring, and the position of the inner wall of the outer pipe, which is close to the second end of the outer pipe, is inwards convexly provided with a second limiting ring; at least two radial through holes are formed in the wall of the outer pipe between the second limiting ring and the second end of the outer pipe at intervals along the circumferential direction, a limiting ball is embedded in the outer pipe corresponding to each radial through hole, and the diameter of each limiting ball is larger than the aperture of each radial through hole; the outer wall of the first end of the outer pipe is outwards convexly provided with a limiting part;
the mandrel can be axially sleeved in the outer tube in a sliding manner, the first end of the mandrel can penetrate through the first limiting ring and extend to the outside of the outer tube, a third limiting ring is formed on the outer wall of the mandrel in a protruding manner at a position close to the first end of the mandrel, and the third limiting ring is positioned between the first limiting ring and the second limiting ring and can abut against the first limiting ring; the side wall of the second end of the mandrel can abut against the inner side end of the limiting ball, an annular groove is formed in the outer wall of the mandrel and in the position close to the second end of the mandrel along the circumferential direction, and the limiting balls can be embedded in the annular groove;
and the reset spring is sleeved between the outer wall of the mandrel and the inner wall of the outer pipe, and two ends of the reset spring respectively abut against the third limiting ring and the second limiting ring.
2. The quick bolt of claim 1,
the limiting ball is a metal ball, and the bottom of the annular groove is a magnetized surface.
3. The quick bolt of claim 2,
and a conical surface which is tapered from the second end to the first end is formed on the outer wall of the mandrel and is adjacent to the second end of the mandrel, and the conical surface forms the groove bottom of the annular groove.
4. The quick bolt of claim 1,
the hole wall of the radial through hole is an arc-shaped surface, and the radial through hole is in a horn shape which is gradually expanded inwards.
5. The quick bolt of claim 1,
the outer tube comprises a cover cap and a protective tube, the first limiting ring is formed on the inner wall of the first end of the cover cap, and the second end of the cover cap is fixed with the first end of the protective tube;
the second limiting ring is formed on the inner wall of the protective cylinder, the radial through hole is formed in the pipe wall of the protective cylinder, and the limiting part is formed on the outer side of the cover cap.
6. The quick bolt of claim 5,
the outer diameter of the cap is larger than that of the protective cylinder, and the part of the cap, which protrudes outwards from the protective cylinder, forms the limiting part.
7. The quick bolt of claim 5,
the outer wall of the cover cap extends outwards in the radial direction to form a handle, and the handle forms the limiting part.
8. The quick bolt of claim 5,
the second end of the cap is in threaded fixation with the first end of the casing.
9. The quick bolt of claim 5,
and the second end of the cover cap is fixedly welded with the first end of the protective cylinder.
10. The quick bolt of claim 1,
the outer tube and the mandrel are made of alloy steel, and the reset spring is made of spring steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020629717.3U CN212429462U (en) | 2020-04-23 | 2020-04-23 | Quick bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020629717.3U CN212429462U (en) | 2020-04-23 | 2020-04-23 | Quick bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212429462U true CN212429462U (en) | 2021-01-29 |
Family
ID=74294435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020629717.3U Active CN212429462U (en) | 2020-04-23 | 2020-04-23 | Quick bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212429462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113800187A (en) * | 2021-08-13 | 2021-12-17 | 奇瑞汽车股份有限公司 | Special tool for steering knuckle |
-
2020
- 2020-04-23 CN CN202020629717.3U patent/CN212429462U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113800187A (en) * | 2021-08-13 | 2021-12-17 | 奇瑞汽车股份有限公司 | Special tool for steering knuckle |
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