Quick release structure for movable claw insert of electric wrench

Abstract

The utility model relates to the technical field of electric wrenches, in particular to an electric wrench movable claw insert quick release structure which comprises a movable claw, an insert containing groove is formed in the inner surface of the movable claw, a protruding and sinking part is arranged on the inner surface of the movable claw and located above the insert containing groove, and the protruding and sinking part is communicated with the insert containing groove. A movable claw insert is inserted into the insert containing groove, a boss part is integrally poured on the top of the movable claw insert, and the boss part is located in the convex concave part when the movable claw insert is inserted into the insert containing groove. And the surface of the movable claw is connected with a quick release assembly, and the quick release assembly is matched with the boss part and the convex part to be used for quick release or fixing work of the movable claw insert. According to the utility model, through the arrangement of the quick release assembly, the problem that a bolt needs to be rotated when the existing movable claw insert is disassembled and assembled is solved, the labor intensity when the movable claw insert is disassembled and assembled is reduced, and the convenience in the disassembly and assembly process of the movable claw insert is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wrenches, in particular to a quick-release structure for movable claw inserts of an electric wrench. Background Technique

[0002] When an electric wrench is in use, the reinforcing bar sleeve and other parts to be turned are clamped by the cooperation of the movable claw insert and the fixed claw insert to realize disassembly and assembly. Therefore, both the movable claw insert and the fixed claw insert are consumables and are prone to wear, and users often need to disassemble and replace them by themselves.

[0003] At present, most of the existing movable claw inserts are fixed by bolts during installation. This fixing method makes the disassembly and replacement of the movable claw insert not convenient enough. It not only increases the labor intensity of installing the movable claw insert, but also reduces the work efficiency during the replacement process. At the same time, a disassembly tool is needed when screwing the bolts; moreover, the bolts are prone to looseness, and are prone to slipping teeth and breaking after being disassembled and assembled multiple times. Small things such as bolt gaskets are easy to fall off and get lost during disassembly and assembly, which brings great troubles to people's use. Therefore, a quick-release structure for movable claw inserts of an electric wrench is needed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a quick-release structure for movable claw inserts of an electric wrench to solve the problem that the disassembly and replacement of the movable claw insert are not convenient enough as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A quick-release structure for movable claw inserts of an electric wrench, including a movable claw, an insert placement groove is arranged on the inner surface of the movable claw, a concave part is arranged above the insert placement groove on the inner surface of the movable claw, and the concave part is communicated with the insert placement groove; a movable claw insert is inserted into the insert placement groove, and a convex platform part is integrally cast at the top of the movable claw insert, and when the movable claw insert is inserted into the insert placement groove, the convex platform part is located inside the concave part; a quick-release assembly is connected to the surface of the movable claw, and the quick-release assembly cooperates with the convex platform part and the concave part to perform quick-release or fixing work on the movable claw insert.

[0006] Preferably, a positioning pin is inserted into the surface of the movable claw, and the positioning pin facilitates the hinge connection between the movable claw and the gear ring.

[0007] Preferably, a pin hole is arranged on the surface of the movable claw, and a torsion spring bottom hole is arranged on one side of the pin hole on the surface of the movable claw.

[0008] Preferably, the quick-release assembly is composed of an insert pressing block, an equal-height pin and a pressing block torsion spring. The insert pressing block is placed on the surface of the movable claw, and in the original state, the top of the movable claw insert is pressed by the insert pressing block.

[0009] Preferably, the top of the insert block is provided with a pin of equal height, and the bottom end of the pin of equal height passes through the insert block and is plugged and fastened with the pin hole, and a torsion spring top hole is opened on the inner wall of the insert block.

[0010] Preferably, a pressure block torsion spring is installed inside the insert pressure block, and the top end of the pressure block torsion spring is plugged and fixed to the inside of the top hole of the torsion spring, and the bottom end of the pressure block torsion spring is plugged and fixed to the inside of the bottom hole of the torsion spring. At the same time, the pressure block torsion spring pushes one end of the insert pressure block to the top of the movable claw insert in its original state.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the quick-release structure of the movable claw insert of the electric wrench is provided with a quick-release component, and the insert pressure block is pulled so that one end of the insert pressure block is completely offset from the recessed portion, and then the movable claw insert is inserted into the insert groove. After the insertion, the boss portion and the recessed portion will be interlocked with each other, and the insert pressure block will be loosened after the interlocking, and the pressure block torsion spring will drive the insert pressure block to press the insert groove, thereby realizing the restriction of the vertical degree of freedom and completing the quick installation of the movable claw insert; when disassembly is required, the insert pressure block is pulled so that one end of the insert pressure block is completely offset from the recessed portion, and the movable claw insert can be removed from the insert groove, which solves the problem that the existing movable claw insert needs to rotate the bolt during disassembly and assembly, reduces the labor intensity during disassembly and assembly of the movable claw insert, and improves the convenience during the disassembly and assembly process of the movable claw insert. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional upright state structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the three-dimensional inverted state structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the explosion structure of the utility model in a normal state;

[0015] Figure 4 This is a schematic diagram of the structure of the utility model in which the insert is in a separated state;

[0016] Figure 5 It is a schematic diagram of the explosion structure of the utility model in an inverted state.

[0017] In the figure: 1. movable claw; 11. positioning pin; 12. insert slot; 13. pin hole; 14. bottom hole of torsion spring; 15. recessed part; 2. movable claw insert; 21. boss part; 3. quick release assembly; 31. insert pressure block; 311. torsion spring top hole; 32. equal height pin; 33. pressure block torsion spring. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. In addition, the terms "first", "second", "third", "upper, lower, left, right", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0019] The structure of the quick-release structure of the movable jaw insert of the electric wrench provided by the present utility model is as Figure 1 and Figure 4 shown, including a movable jaw 1. A positioning pin 11 is inserted into the surface of the movable jaw 1. This positioning pin 11 facilitates the hinged installation of the movable jaw 1 and the gear ring. An insert groove 12 is provided on the inner surface of the movable jaw 1. A concave portion 15 is provided on the inner surface of the movable jaw 1 and above the insert groove 12, and the concave portion 15 communicates with the insert groove 12. A pin hole 13 is provided on the surface of the movable jaw 1, and a torsion spring bottom hole 14 is provided on the surface of the movable jaw 1 on one side of the pin hole 13; A detachable movable jaw insert 2 is inserted into the insert groove 12. A convex portion 21 is integrally cast on the top of the movable jaw insert 2, and when the movable jaw insert 2 is inserted into the insert groove 12, the convex portion 21 is located inside the concave portion 15.

[0020] During implementation, the movable jaw insert 2 is inserted into the insert groove 12. After insertion, the convex portion 21 will be inserted and combined with the concave portion 15.

[0021] Furthermore, as Figure 2 、 Figure 3 and Figure 5As shown, the surface of the movable claw 1 is connected with a quick release assembly 3, and the quick release assembly 3 cooperates with the boss portion 21 and the recessed portion 15 to quickly release or fix the movable claw insert 2. The quick release assembly 3 is composed of an insert pressing block 31, a height pin 32 and a pressing block torsion spring 33. The insert pressing block 31 is placed on the surface of the movable claw 1, and in the original state, the top of the movable claw insert 2 is pressed by the insert pressing block 31, and the top of the insert pressing block 31 is provided with a height pin 32, and the height of the height pin 32 is The bottom end passes through the insert block 31 and is plugged and fastened with the pin hole 13. A torsion spring top hole 311 is opened on the inner wall of the insert block 31. A block torsion spring 33 is installed inside the insert block 31, and the top end of the block torsion spring 33 is plugged and fixed to the inside of the torsion spring top hole 311, and the bottom end of the block torsion spring 33 is plugged and fixed to the inside of the torsion spring bottom hole 14. At the same time, the block torsion spring 33 pushes one end of the insert block 31 to the top of the movable claw insert 2 to compact it in its original state.

[0022] During implementation, the insert pressing block 31 is pulled so that one end of the insert pressing block 31 is completely offset from the convex portion 15, and the movable claw insert 2 can be removed from the insert slot 12, thereby solving the problem that the existing movable claw insert needs to rotate the bolt when disassembling.

[0023] Working principle: When in use, the insert pressing block 31 is pushed so that one end of the insert pressing block 31 is completely offset from the recessed portion 15, and then the movable claw insert 2 is inserted into the insert groove 12. After insertion, the boss portion 21 will be inserted into the recessed portion 15. After insertion, the insert pressing block 31 is relaxed, and the pressing block torsion spring 33 will drive the insert pressing block 31 to press the insert groove 12, thereby realizing the limitation of the vertical degree of freedom and completing the quick installation of the movable claw insert 2.

[0024] When disassembly is required, the insert pressing block 31 is pushed so that one end of the insert pressing block 31 is completely offset from the recessed portion 15, and the movable claw insert 2 can be removed from the insert groove 12, thereby solving the problem of the existing movable claw insert requiring the bolt to be rotated during disassembly and assembly, reducing the labor intensity during disassembly and assembly of the movable claw insert, and improving the convenience during the disassembly and assembly of the movable claw insert.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A quick-release structure for an electric wrench movable jaw insert, comprising a movable jaw (1), characterized in that: The inner surface of the movable claw (1) is provided with an insert groove (12), and a convex portion (15) is provided on the inner surface of the movable claw (1) and located above the insert groove (12), and the convex portion (15) and the insert groove (12) are communicated with each other; a movable claw insert (2) is inserted into the insert groove (12), and a boss portion (21) is integrally cast on the top of the movable claw insert (2), and when the movable claw insert (2) is inserted into the insert groove (12), the boss portion (21) is located inside the convex portion (15); a quick release assembly (3) is connected to the surface of the movable claw (1), and the quick release assembly (3) cooperates with the boss portion (21) and the convex portion (15) for quick release or fixing of the movable claw insert (2).

2. The quick-release structure of the movable jaw insert of an electric wrench according to claim 1, characterized in that: A positioning pin (11) is inserted into the surface of the movable claw (1), and the positioning pin (11) facilitates the mutual hinge connection between the movable claw (1) and the gear ring.

3. The quick-release structure of the movable jaw insert of an electric wrench according to claim 1, characterized in that: The surface of the movable claw (1) is provided with a pin hole (13), and the surface of the movable claw (1) is provided with a torsion spring bottom hole (14) on one side of the pin hole (13).

4. The quick-release structure of the movable jaw insert of an electric wrench according to claim 1, characterized in that: The quick-release assembly (3) is composed of an insert pressure block (31), an equal-height pin (32) and a pressure block torsion spring (33). The insert pressure block (31) is placed on the surface of the movable claw (1), and in the original state, the top of the movable claw insert (2) is pressed by the insert pressure block (31).

5. The quick-release structure of the movable jaw insert of an electric wrench according to claim 4, characterized in that: The top of the insert pressing block (31) is provided with a pin column (32) of equal height, and the bottom end of the pin column (32) penetrates the insert pressing block (31) and is plugged and fastened to the pin column hole (13), and a torsion spring top hole (311) is opened on the inner wall of the insert pressing block (31).

6. The quick-release structure of the movable jaw insert of an electric wrench according to claim 5, characterized in that: A pressing block torsion spring (33) is installed inside the insert pressing block (31), and the top end of the pressing block torsion spring (33) is plugged and fixed to the inside of the torsion spring top hole (311), and the bottom end of the pressing block torsion spring (33) is plugged and fixed to the inside of the torsion spring bottom hole (14), and at the same time, the pressing block torsion spring (33) pushes one end of the insert pressing block (31) to the top of the movable claw insert (2) in the original state.

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