Clamp hinge limiting device
By introducing a limiting unit at the hinge of the clamp, the serious wear of the clamp hinge of the clamp is solved, the stability of the clamp body and the smoothness of the opening and closing are achieved, and the service life and efficiency of the clamp are improved.
Patent Information
- Application Number
- CN202422468764.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-12
AI Technical Summary
Traditional pliers wear severely at the hinge, resulting in poor stability when picking up the pliers, especially when the clamp rod is long, the distal pliers body is prone to slip sideways.
The limiting unit is adopted, including limiting bolts, limiting gaskets and limiting cylinders. The limiting bolts are fitted to the limiting nuts through the limiting cylinder sleeve, and the limiting bolts are meshed and connected to the limiting nuts to prevent the clamping body from contacting the limiting bolts, reduce wear, and adjust the tightness of the hinging point through the limiting cylinder as the rotation shaft.
It effectively prevents wear of the clamp body, improves the stability of the clamp and the silky smoothness of the opening and closing, extends the service life, and enhances the structural rationality and efficiency of the clamp body.
Smart Images
Figure CN223251441U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pliers, in particular to a hinged limiting device for pliers. Background Art
[0002] Pliers are tools for gripping solid objects. They are often used in rural families for cooking and adding firewood for heating in winter. They are also used for gripping coal or honeycomb coal and for outdoor barbecues. Street cleaners now also use them to pick up garbage on the ground, pick up objects in small holes or gaps, and grip shrimp, crabs, eels, loaches, etc. that are inconvenient to grab with bare hands. Traditional pliers have one end for hand grip and a straight clamping rod on the other end. During long-term use, the hinge of the two clamps will wear severely, causing the hinge to loosen. When the clamping rod is long, the distal ends of the two clamping rods will slide sideways (not run relative to each other) when clamping objects, and the clamping stability is poor. Summary of the Invention
[0003] The purpose of the utility model is to provide a self-adjustable clamp hinge limit device with reasonable structure, high use efficiency and low wear rate.
[0004] To achieve the above-mentioned purpose, the technical solution provided by the utility model is: a hinged limit device for pliers, which includes a first pliers body and a second pliers body, and the first pliers body and the second pliers body are provided with opposite reaming holes, and the first pliers body and the second pliers body on one side of the reaming hole are provided with a handle, and the first pliers body and the second pliers body on the other side extend to form a clamping rod, and a limit unit is provided at the reaming hole; the limit unit includes a limit bolt, a first limit gasket, a limit cylinder, a second limit gasket, and a limit nut, wherein the reaming holes of the first pliers body and the second pliers body are both mounted on the outer circumferential surface of the limit cylinder; one end of the limit cylinder is provided with a first limit gasket, and the other end is provided with a second limit gasket, and the limit bolt passes through the first limit gasket, the limit cylinder, and the second limit gasket and engages with the limit nut.
[0005] An internal thread is provided on the inner wall of the limiting cylinder, and the internal thread is engaged with the limiting bolt.
[0006] The inner wall of the limiting cylinder is not provided with an internal thread, and is a simple style. The cylinder is a through hole and is directly sleeved on the bolt.
[0007] After the above scheme is adopted in the present invention, after the hinged parts of the first and second caliper bodies are limited by the limiting unit, the limiting gasket limits the limiting cylinder, which is locked by the limiting nut, thereby preventing the limiting nut of the traditional hinged method from directly contacting the caliper body and causing jamming. The limiting cylinder is set in the reaming hole, effectively preventing the caliper body at the reaming hole from directly contacting the limiting bolt and causing wear, and preventing the limiting bolt from being worn. The length of the limiting cylinder is slightly greater than or approximately equal to the thickness of the two caliper bodies, thereby reducing the wear rate of the outer wall of the caliper body and the limiting gasket. The structure after adopting this scheme is reasonable, the use efficiency is high, and the tightness of the hinge point of the caliper body can be effectively adjusted, which not only ensures the stability of the combined part of the first and second caliper bodies, but also ensures the smoothness of the opening and closing between the first and second caliper bodies during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0009] Figure 2 This is a schematic diagram of the disassembly of the present utility model.
[0010] Figure 3 This is a schematic diagram of the disassembly of the limit unit of the utility model.
[0011] Figure 4 This is a schematic diagram of the assembly of the limit unit of the present utility model. DETAILED DESCRIPTION
[0012] The present invention will be further described below in conjunction with all the accompanying drawings. The preferred embodiments of the present invention are as follows: Figure 1 To the attached Figure 4 ,
[0013] The embodiments described in this embodiment with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be understood as limiting this patent.
[0014] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.
[0015] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.
[0016] The present embodiment describes a hinged limiting device for a pliers, which includes a first pliers body 1 and a second pliers body 2, wherein the first pliers body 1 and the second pliers body 2 are provided with opposite reaming holes, and the first pliers body 1 and the second pliers body 2 on one side of the reaming hole are provided with a handle, and the first pliers body 1 and the second pliers body 2 on the other side extend to form a clamping rod, and a limiting unit is provided at the reaming hole; the limiting unit includes a limiting bolt 6, a first limiting gasket 7, a limiting tube 8, a second limiting gasket 10, and a limiting nut 9, wherein the reaming holes of the first pliers body 1 and the second pliers body 2 are both mounted on the outer circumferential surface of the limiting tube 8; one end of the limiting tube 8 is provided with a first limiting gasket 7, and the other end is provided with a second limiting gasket 10, and the limiting bolt 6 passes through the first limiting gasket 7, the limiting tube 8, and the second limiting gasket 10 and is engaged with the limiting nut 9. The inner wall of the limiting cylinder 8 is provided with an internal thread, which engages with the limiting bolt 6; the inner wall of the limiting cylinder 8 has no internal thread, which is a simple style. The limiting cylinder 8 is a through hole and is directly sleeved on the bolt.
[0017] After adopting the above scheme, after the hinged parts of the first caliper body and the second caliper body are limited by the limiting unit, the limiting gasket limits the outside of the caliper body, and at the same time prevents the limiting nut from directly contacting the caliper body and causing jamming. The limiting cylinder sleeve is inserted into the reamed hole, and the limiting cylinder sleeve serves as the pivot rotation axis of the caliper bodies on both sides, effectively preventing the caliper body at the reamed hole from directly contacting the limiting bolt and causing wear, and also preventing the limiting bolt from being worn. The length of the limiting cylinder is slightly greater than or approximately equal to the thickness of the two caliper bodies. In this way, the wear rate of the outer wall of the caliper body and the limiting gasket is also reduced. While ensuring the stability of the caliper body structure combination, the smoothness of the opening and closing of the two caliper bodies is also guaranteed. The structure after adopting this scheme is reasonable, the use efficiency is high, and the comfort of the caliper body when used can be effectively adjusted.
[0018] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any changes made based on the shape and principle of the present invention should be included in the scope of protection of the present invention.
Claims
1. A clamp articulated limit device, comprising a first clamp body (1) and a second clamp body (2), characterized in that: The first pliers body (1) and the second pliers body (2) are provided with reaming holes that penetrate each other, and the first pliers body (1) and the second pliers body (2) on one side of the reaming holes are provided with a handle, and the first pliers body (1) and the second pliers body (2) on the other side extend to form a clamping rod, and a limiting unit is provided at the reaming hole; the limiting unit comprises a limiting bolt (6), a first limiting gasket (7), a limiting cylinder (8), a limiting nut (9), and a second limiting gasket (10), wherein the reaming holes of the first pliers body (1) and the second pliers body (2) are both sleeved on the outer circumference of the limiting cylinder (8); the limiting cylinder (8) also acts as a rotating shaft, and one end thereof is provided with a first limiting gasket (7), and the other end is provided with a second limiting gasket (10).
2. A clamp hinge limit device according to claim 1, characterized in that: The limiting bolt (6) passes through the first limiting washer (7), the limiting cylinder (8), and the second limiting washer (10) and is engaged with the limiting nut (9).
3. The hinged limit device for pliers according to claim 1, characterized in that: An internal thread is provided on the inner wall of the limiting cylinder (8), and the internal thread is engaged with the limiting bolt (6).
4. The hinged limit device for pliers according to claim 1, characterized in that: The inner wall of the limiting cylinder (8) is not provided with an internal thread, and the limiting cylinder (8) is a through hole directly sleeved on the bolt.