Jaw for auxiliary disassembly of nut
By designing the symmetrical structure of nut-assisted decomposition jaws, the problems of slipping and nut damage of fish mouth pliers are solved, and stable clamping and efficient decomposition are achieved, improving the convenience and safety of operation.
Patent Information
- Application Number
- CN202422586287.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-25
AI Technical Summary
Existing fish mouth pliers are prone to slip when decomposing the nut, resulting in damage to the nut surface and increasing the difficulty of operation, making it difficult to efficiently decompose the nut that damaged the thread.
A jaw for assisted decomposition of nuts is designed, with jaws A and jaw B with a symmetrical structure. Step-like grooves are provided on the front end and side to form three vertical notches to ensure that the jaws and nuts are firmly clamped and avoid slipping.
It improves the stability and efficiency of nut decomposition, avoids nut surface damage, and enhances the convenience and safety of operation.
Smart Images
Figure CN223301511U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aviation manufacturing and maintenance, in particular to a pair of jaws for auxiliary disassembly of nuts. Background Art
[0002] Aircraft often need to disassemble nuts during maintenance. When the thread of a nut is damaged, it is difficult to disassemble the nut from a fixed position. In this case, external force needs to be applied to the nut to increase the rotational torque and force the nut to disassemble. The tools used in the forced disassembly process are mainly fish-mouth pliers, but the jaws of such tools are all closed structures. When the jaws clamp a nut or screw, the handle end will open at the same opening angle as the jaw end, which increases the difficulty for the operator to grip. At the same time, since there is no groove design on the jaw end of the fish-mouth pliers, when the fish-mouth pliers clamp the hexagonal head of the screw or nut, the contact form is line contact. When applying torque to the nut, it is easy for the nut to slip, resulting in damage to the surface of the nut. Therefore, it is necessary to design a tool that can stably clamp the nut head to ensure the stability of the nut clamping and improve the efficiency of disassembling nuts with damaged threads. Utility Model Content
[0003] The utility model provides jaws for assisting in the disassembly of nuts, which can better clamp the head of the nut while ensuring the stability of the jaw structure. When the operator applies torque to the tool, the jaws will not slip off the nut to be disassembled, thereby improving the efficiency of the disassembly work and avoiding damage to the surface of the nut.
[0004] The technical solution of this utility model:
[0005] A pair of jaws for assisting in the disassembly of nuts, comprising jaws A and jaws B; jaws A and jaws B form a symmetrical structure with respect to a clamping plane in the middle when in a closed state; the front ends of jaws A and jaws B are both provided with grooves having a stepped structure, which are positioned opposite to each other; the front ends of jaws A and jaws B are also both provided with grooves having a stepped structure, which are positioned opposite to each other; when jaws A and jaws B are in a closed state, a total of three closed notches are formed, and the notch at the front end is perpendicular to the notch at the front end and the notches on both sides of the front end.
[0006] The width of the grooves at the ends of the jaws A and B is 6 mm, the side length of the stepped structure is 2 mm, the step difference of the stepped structure is 1 mm, and each notch is symmetrical on the left, right, top and bottom.
[0007] The beneficial effects of the present invention are as follows: the present invention adopts an integrated structural design, is easy to operate, and has a relatively strong clamping effect. When the operator applies torque to the jaws, jaws A and B can apply the torque to the nut without slipping between the jaws and the nut, thereby improving the force effect and thus improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 An isometric view of a pair of jaws for assisting in the disassembly of nuts.
[0009] Figure 2 This is a front view and size identification of a pair of jaws used to assist in disassembling nuts.
[0010] Figure 3 An isometric view of a nut with damaged threads being gripped by the end of a jaw used for auxiliary nut disassembly.
[0011] Figure 4 An isometric view of a nut with damaged threads being gripped from the side using jaws for auxiliary nut disassembly.
[0012] In the figure: 1-jaw A, 2-jaw B, 3-nut with damaged thread. DETAILED DESCRIPTION
[0013] The following further explains the specific implementation of the present invention in conjunction with the examples and drawings, but is not intended to limit the present invention.
[0014] This embodiment provides a jaw for assisting in the disassembly of nuts, such as Figure 1 As shown, it comprises two parts, jaw A1 and jaw B2. When jaws A1 and B2 are in the closed state, they form a symmetrical structure with respect to the clamping plane in the middle. When jaws A1 and B2 are in the closed state, a stepped groove design is provided at the front end, and a stepped groove design is also provided on the side. Specifically, the front ends of jaws A1 and B2 are both provided with stepped grooves, which are positioned opposite each other; the front ends of jaws A1 and jaw B2 are also provided with stepped grooves, which are positioned opposite each other; when jaws A1 and jaw B2 are in the closed state, a total of three closed grooves are formed, and the direction of the groove at the front end is perpendicular to the direction of the grooves on both sides of the front end.
[0015] Furthermore, according to the requirements of the operators on the job site, in order to ensure that the jaws can be more stable after clamping the nut, and after the jaws clamp the nut, the opening and closing angle of jaws A1 and jaws B2 should not be too large, so as to facilitate the operator's control of the jaws. Based on this idea, the width d of the grooves at the ends of jaws A1 and jaws B2 is set to 6mm (that is, the distance between the two farthest step structures), the side length e of the step structure is set to 2mm, the gap f of the step structure is set to 1mm, and the left, right, top and bottom are symmetrical structures, such as Figure 2 According to the same method, the same size design is also made on the side clamped by jaws A1 and B2.
[0016] In actual work, when the nut is damaged due to thread damage and cannot be disassembled by a wrench alone, the front end of the nut auxiliary disassembly jaws can be clamped on the nut 3 with damaged thread (such as Figure 3 As shown), then rotate the jaws. When the nut cannot be disassembled by the front end of the jaws through the nut auxiliary disassembly, the nut 3 with damaged thread can be clamped by the side of the jaws A1 and jaws B2 (as shown). Figure 4 As shown), apply more torque to the nut to break it down.
Claims
1. A jaw for assisting nut disassembly, characterized in that: The jaws for assisting in the disassembly of nuts include jaws A and jaws B; the jaws A and jaws B form a symmetrical structure with the clamping plane in the middle when in a closed state; the front ends of the jaws A and jaws B are each provided with a stepped groove, which is positioned relative to each other; the front ends of the jaws A and jaws B are also each provided with a stepped groove on both sides, which is positioned relative to each other; when the jaws A and jaws B are in a closed state, a total of three closed notches are formed, and the direction of the notch at the front end is perpendicular to the notches on both sides of the front end.
2. The jaws for assisting nut disassembly according to claim 1, characterized in that: The width of the grooves at the ends of the jaws A and B is 6 mm, the side length of the stepped structure is 2 mm, the step difference of the stepped structure is 1 mm, and each notch is symmetrical on the left, right, top and bottom.