CN218518456U - Screw thread formula locking pliers - Google Patents
Screw thread formula locking pliers Download PDFInfo
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- CN218518456U CN218518456U CN202222482323.1U CN202222482323U CN218518456U CN 218518456 U CN218518456 U CN 218518456U CN 202222482323 U CN202222482323 U CN 202222482323U CN 218518456 U CN218518456 U CN 218518456U
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- 230000000670 limiting effect Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 6
- 241000251468 Actinopterygii Species 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
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Abstract
The utility model discloses a screw thread formula locking pliers relates to the clamping tool, has solved present locking pliers clamping process inefficiency and has caused the technical problem of fish tail to the surface of work piece easily. Comprises an upper clamp rod, a lower handle, a lower clamp rod, an upper handle, a screw rod, an upper puller nut and a lower puller nut; a strip-shaped through groove is formed in the screw rod, and the tail ends of the upper handle and the lower handle are movably inserted in the through groove; the upper tightening nut is screwed at one end of the screw rod and is used for tightening the upper handle so as to limit one side of the upper handle, which is far away from the lower handle; and the lower tightening nut is screwed at the other end of the screw rod and is used for tightly tightening the lower handle so as to limit one side of the lower handle, which is far away from the upper handle. The utility model is simple in operation convenient, need not to adjust self-lock device's adjusting bolt many times at the centre gripping in-process, improved clamping efficiency greatly, reduced fish tail work piece surface's risk.
Description
Technical Field
The utility model relates to a clamping tools, more specifically says that it relates to a screw thread formula locking pliers.
Background
The locking pliers are used for clamping a workpiece or two separated workpieces. The self-locking device is arranged on the traditional locking pliers, so that the locking of the pliers rod can be realized after the handles of the locking pliers are pressed back, and the articles are clamped. The locking pliers require two adjustment steps before use. Firstly, adjusting an adjusting bolt on the locking pliers according to the thickness of the workpiece so that the pliers opening can be inserted into the workpiece; secondly, after the workpiece is inserted into the jaw, the handle of the locking pliers is tried to be pressed, whether the workpiece can be clamped or not is tested, and the adjusting bolt is continuously adjusted according to the tightness degree of clamping. For example, if the clamping is over-loose or over-tight, the self-locking device is opened, so that the locking pliers are loosened from the workpiece; and continuing to rotate the adjusting bolt, and then performing the clamping test again until the clamping force is proper. However, the clamping mode is time-consuming, labor-consuming and low in efficiency; and multiple clamping tests are carried out, so that the surface of the workpiece is easily scratched.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is not enough to prior art, a screw thread formula locking pliers is provided, has solved present locking pliers clamping process inefficiency and has caused the problem of fish tail to the surface of work piece easily.
The technical scheme of the utility model lies in: a screw thread type locking pliers comprises an upper pliers rod and a lower handle which are connected in an integrated manner, and a lower pliers rod and an upper handle which are connected in an integrated manner; the upper handle and the lower handle are rotatably connected through a connecting part, and the upper handle and the lower handle also comprise a screw rod, an upper puller nut and a lower puller nut; a strip-shaped through groove is formed in the screw rod, and the tail ends of the upper handle and the lower handle are movably inserted in the through groove; the upper tightening nut is screwed at one end of the screw rod and is used for tightening the upper handle so as to limit one side of the upper handle, which is far away from the lower handle; and the lower tightening nut is screwed at the other end of the screw rod and is used for tightly tightening the lower handle so as to limit one side of the lower handle, which is far away from the upper handle.
An upper locking nut is screwed on the screw rod on one side of the upper locking nut, which is far away from the through groove; and the screw rod on one side of the lower tightening nut, which is far away from the through groove, is screwed with a lower locking nut.
The upper locking nut and the lower locking nut are both butterfly nuts.
Go up the handle and the end of handle down all runs through logical groove, just go up the handle and run through the one end that leads to the groove and the equal fixed mounting in one end that the handle runs through logical groove down and have the stopper.
And a rebound assembly is arranged between the two limiting blocks.
The rebounding assembly comprises a spring and a movable rod; one end of the movable rod is fixedly arranged on one limiting block, and the other end of the movable rod is movably inserted into the other limiting block; the spring is sleeved on the movable rod between the two limiting blocks; and when the upper handle and the lower handle are respectively contacted with the two ends of the through groove, the spring is in a compressed state.
Advantageous effects
The utility model has the advantages that:
1. the tail end of the handle of the locking pliers is provided with a screw rod movably connected with the handle, and a jacking bolt capable of driving the handle to move is screwed on the screw rod. When the clamping is carried out on a workpiece, the clamping of the locking pliers to the workpiece can be realized only by rotating the jacking nut, the operation is simple and convenient, the adjusting bolt of the self-locking device is not required to be adjusted for many times in the clamping process, the clamping efficiency is greatly improved, and the risk of scratching the surface of the workpiece is reduced.
2. Connect the locking bolt soon on the screw rod of the looks aside of puller bolt to it is spacing to lock the puller bolt, can reduce the locking pliers in the use because of the puller bolt appears becoming flexible the not hard up problem of centre gripping that leads to the work piece.
Drawings
Fig. 1 is a schematic view of the locking pliers of the present invention with the jaws in a closed state;
FIG. 2 is a schematic view of the locking pliers of the present invention with the jaws in an open position;
fig. 3 is a schematic structural view of the screw of the present invention.
Wherein: 1-upper clamp rod, 2-lower handle, 3-lower clamp rod, 4-upper handle, 5-connecting part, 6-screw rod, 7-upper top tightening nut, 8-lower top tightening nut, 9-through groove, 10-upper locking nut, 11-lower locking nut, 12-limiting block, 13-spring and 14-movable rod.
Detailed Description
The present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention, and any modifications made by anyone within the scope of the claims of the present invention will still fall within the scope of the claims of the present invention.
Referring to fig. 1-3, the present invention relates to a pair of screw-thread locking pliers, which comprises an upper pliers rod 1 and a lower handle 2 connected in an integrated manner, and a lower pliers rod 3 and an upper handle 4 connected in an integrated manner. The upper handle 4 and the lower handle 2 are rotatably connected by a connecting portion 5. The upper/lower clamp rod, the upper/lower handle and the connecting part 5 are the structures inherent in the existing locking pliers, and the utility model discloses do not improve it, so do not do more to discuss.
The locking pliers of the embodiment further comprise a screw 6, an upper tightening nut 7 and a lower tightening nut 8. A strip-shaped through groove 9 is formed in the screw rod 6, and the tail ends of the upper handle 4 and the lower handle 2 are movably inserted in the through groove 9. Go up tight nut 7 and connect soon in the one end of screw rod 6 for push up tight handle 4, it is spacing to keep away from one side of lower handle 2 to go up handle 4. And the lower tightening nut 8 is screwed at the other end of the screw rod 6 and is used for tightening the lower handle 2 so as to limit one side of the lower handle 2, which is far away from the upper handle 4.
When two jam nuts rotate along the screw rod 6 and are close to each other, the distance between the tail ends of the two handles is reduced, so that the tail end distance between the two clamp rods is also reduced, and the workpiece between the two clamp rods is clamped. And conversely, loosening the workpiece positioned between the two clamp rods. The clamping device is simple and convenient to operate, the clamping of the locking pliers on the workpiece can be realized only by rotating any one or two tightening nuts, the adjusting bolt of the self-locking device is not required to be adjusted for multiple times in the clamping process, the clamping efficiency is greatly improved, and the risk of scratching the surface of the workpiece is reduced.
In a further improvement, an upper locking nut 10 is screwed on the screw rod 6 at one side of the upper locking nut 7 far away from the through groove 9. The screw 6 at one side of the lower tightening nut 8 far away from the through groove 9 is screwed with a lower locking nut 11. The two screw rods 6 on the opposite sides of the top tightening nuts are respectively screwed with the locking nuts, so that the top tightening nuts are limited, and the problem that clamping is unstable due to movement of the top tightening nuts in the using process of the locking pliers is solved.
Wherein, the upper locking nut 10 and the lower locking nut 11 are both butterfly nuts, so as to facilitate the rotating operation of the locking nuts.
Go up handle 4 and lower handle 2's end and all run through logical groove 9, and go up handle 4 and run through the one end that leads to groove 9 and the equal fixed mounting in one end that leads to groove 9 of lower handle 2 has stopper 12. The problem that the handle falls off from the through groove 9 can be avoided through the limiting effect of the limiting block 12.
In addition, a rebound assembly is arranged between the two limiting blocks 12, so that the handle is pushed to the end part of the through groove 9 or is in contact with the locking bolt, and the clamp rods of the locking clamp are always in an open state when the locking clamp does not clamp a workpiece, so that the locking clamp can be used next time.
In particular, the rebound assembly comprises a spring 13 and a movable rod 14. One end of the movable rod 14 is fixedly arranged on one of the limit blocks 12, and the other end of the movable rod 14 is movably inserted into the other limit block 12. More specifically, a through hole for inserting the movable rod 14 is formed in the limiting block 12 movably connected with the movable rod 14, and the diameter of the through hole is larger than that of the movable rod 14. The spring 13 is sleeved on the movable rod 14 between the two limit blocks 12. And the spring 13 is in a compressed state when the upper handle 4 and the lower handle 2 are respectively in contact with both ends of the through groove 9. I.e. the maximum distance between the two handle ends, the spring 13 is still in a compressed state, so that the rebound assembly acts on the handle with a rebound force.
The utility model discloses a theory of operation is: when the clamp is used, the opening degree of the clamp rods is ensured, so that a workpiece can be clamped between the two clamp rods and then inserted between the two clamp rods. Then, one of the tightening bolts is rotated or two tightening bolts are simultaneously rotated, so that the distance between the two tightening bolts is reduced. When the distance between the two puller bolts is reduced, the distance between the two handles is also reduced, so that the distance between the tail ends of the two clamp rods is also reduced, and finally, a workpiece positioned between the two clamp rods is clamped. After clamping, the locking bolt is rotated to make the locking bolt contact with the corresponding puller bolt so as to carry out limiting locking on the puller bolt.
What has been described above is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make a plurality of modifications and improvements without departing from the structure of the present invention, and these will not affect the effect of the present invention and the practicability of the patent.
Claims (6)
1. A screw thread type locking pliers comprises an upper pliers rod (1) and a lower handle (2) which are connected in an integrated manner, and a lower pliers rod (3) and an upper handle (4) which are connected in an integrated manner; the upper handle (4) is rotatably connected with the lower handle (2) through a connecting part (5), and is characterized by further comprising a screw rod (6), an upper puller nut (7) and a lower puller nut (8); a strip-shaped through groove (9) is formed in the screw rod (6), and the tail ends of the upper handle (4) and the lower handle (2) are movably inserted into the through groove (9); the upper tightening nut (7) is screwed at one end of the screw rod (6) and is used for tightening the upper handle (4) so as to limit one side of the upper handle (4) far away from the lower handle (2); and the lower tightening nut (8) is screwed at the other end of the screw rod (6) and is used for tightening the lower handle (2) so as to limit one side of the lower handle (2) far away from the upper handle (4).
2. A screw-type locking pliers as claimed in claim 1, wherein the upper tightening nut (10) is screwed on the screw (6) on the side of the upper tightening nut (7) far from the through slot (9); and a lower locking nut (11) is screwed on the screw rod (6) on one side of the lower jacking nut (8) far away from the through groove (9).
3. A threaded locking pliers according to claim 2, characterized in that the upper locking nut (10) and the lower locking nut (11) are wing nuts.
4. The screw-type locking pliers according to claim 1, wherein the ends of the upper handle (4) and the lower handle (2) extend through the through groove (9), and a limiting block (12) is fixedly mounted at one end of the upper handle (4) extending through the through groove (9) and one end of the lower handle (2) extending through the through groove (9).
5. A screw-type locking pliers according to claim 4, wherein a rebound assembly is provided between the two limit blocks (12).
6. A screw-type locking pliers according to claim 5, wherein said rebound assembly comprises a spring (13) and a movable rod (14); one end of the movable rod (14) is fixedly arranged on one limiting block (12), and the other end of the movable rod (14) is movably inserted into the other limiting block (12); the spring (13) is sleeved on the movable rod (14) between the two limit blocks (12); and when the upper handle (4) and the lower handle (2) are respectively contacted with two ends of the through groove (9), the spring (13) is in a compressed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222482323.1U CN218518456U (en) | 2022-09-19 | 2022-09-19 | Screw thread formula locking pliers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222482323.1U CN218518456U (en) | 2022-09-19 | 2022-09-19 | Screw thread formula locking pliers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218518456U true CN218518456U (en) | 2023-02-24 |
Family
ID=85247122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222482323.1U Active CN218518456U (en) | 2022-09-19 | 2022-09-19 | Screw thread formula locking pliers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218518456U (en) |
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2022
- 2022-09-19 CN CN202222482323.1U patent/CN218518456U/en active Active
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