Wrench

Abstract

The utility model discloses a wrench, which relates to the technical field of wrenches and comprises a movable wrench, a wrench head body is fixed at the handle end of the movable wrench, a movable part is slidably arranged in a limit sliding groove on the wrench head body, a worm is rotatably arranged in a square groove on the wrench head body, the movable part is rotatably meshed with the worm, and the movable part is fixedly connected with the movable part. A square driving head is fixed to one end of the movable part, a U-shaped groove is formed in the side, located on the square driving head, of the wrench head body, and the square driving head penetrates through the through groove to be elastically connected with the connecting end of the sleeve in a clamped mode. The tool has the advantages that lifting eye nuts, conventional hexagon nuts, inner hexagon bolts and outer hexagon bolts can be disassembled and used, and hexagon nuts or bolts of different models can be disassembled or assembled by installing sleeves of different models; the worm is rotated to adjust the position of the square driving head so as to dismount or mount the lifting ring nut; and the injury to people caused by slipping and separation of the wrench during rotation is avoided.

Description

Technical field:

[0001] The utility model relates to the technical field of wrenches, in particular to a wrench. Background technology:

[0002] A wrench is a commonly used installation and disassembly tool. It is a hand tool that uses the principle of leverage to twist bolts, screws, nuts and other threaded fastening bolts or nuts to open or socket the openings or holes of the hardware.

[0003] At present, in the chemical production process, a security filter is used. The cylinder of the security filter and the sealing cover are clamped by a plurality of eye bolts and eye nuts through threaded connection;

[0004] The existing wrenches have the following defects: due to the special shape of the eye nut, it is relatively tight when connected, so the common wrenches cannot quickly rotate the eye nut, so usually one end of the crowbar is inserted into the ring at the top of the eye nut, and the eye nut is disassembled by rotating the crowbar; however, due to the relatively smooth surface of the crowbar, the crowbar is easy to slip out of the ring at the top of the eye nut during rotation, causing injuries to the operator. Therefore, the present application proposes a new wrench to solve the existing technical defects. Utility model content:

[0005] The purpose of the utility model is to provide a wrench to solve the problems raised in the above background technology.

[0006] The utility model is implemented by the following technical solutions:

[0007] A wrench comprises an adjustable wrench, a wrench body is fixed at the handle end of the adjustable wrench, a movable part is slidably arranged in a limiting sliding groove on the wrench body, a worm is rotatably arranged in a square groove on the wrench body, the movable part is rotatably engaged with the worm, a square driving head is fixed to one end of the movable part, a U-shaped groove is provided on one side of the wrench body located on the square driving head, and the square driving head passes through the through groove and is elastically clamped with the connecting end of the sleeve.

[0008] Preferably, a limiting sliding groove is provided at the outer end of the wrench body, a square groove is further provided at the middle of the groove bottom of the limiting sliding groove, and a through groove is provided in the U-shaped groove along the sliding direction of the square driving head.

[0009] Preferably, a limiting block is fixed on the top of the movable part, one end of the limiting block close to the square driving head is movably abutted against the upper end surface of the wrench body, and a tooth groove meshing with the worm is provided at the bottom of the movable part.

[0010] Preferably, the width of the U-shaped groove is greater than the thickness of the circular ring at the top of the ring nut, and when the circular ring at the top of the ring nut is placed in the U-shaped groove, the square drive head passes through the circular ring at the top of the ring nut.

[0011] Preferably, the used end of the sleeve has an inner hexagonal groove and an outer surface of a regular hexagonal prism.

[0012] The beneficial effects of the utility model include: being able to dismantle and use eye nuts, conventional hexagonal nuts, internal hexagonal bolts and external hexagonal bolts; by installing sleeves of different types, different types of hexagonal nuts or bolts can be dismantled or installed; the eye nuts can be dismantled or installed by adjusting the position of the square drive head by rotating the worm; and the wrench can be prevented from slipping and coming off during rotation to cause injury to people. Description of the drawings:

[0013] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 for Figure 1 The main view;

[0015] Figure 3 for Figure 2 A partial structural cross-sectional view;

[0016] Figure 4 It is a partial structural schematic diagram of the utility model;

[0017] Figure 5 for Figure 4 The changing state diagram;

[0018] Figure 6 Schematic diagram of the sleeve structure Figure 1 ;

[0019] Figure 7 Schematic diagram of the sleeve structure Figure 2 ;

[0020] Figure 8 This is a diagram of the use state of the utility model;

[0021] Fig. 9 for Figure 8 A top view of

[0022] Fig.10 for Fig. 9 Enlarged view of point A in the middle.

[0023] In the figure: 1. adjustable wrench, 2. wrench body, 2.1. limit slide groove, 2.2. square groove, 2.3. U-shaped groove, 2.4. through groove, 2.5. upper end surface, 3. movable part, 3.1. limit block, 3.2. tooth groove, 4. worm, 5. square drive head, 6. sleeve, 6.1. hexagonal groove, 7. ring, 8. safety filter. Specific implementation method:

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-10 The utility model provides a wrench technical solution: based on the improvement of the existing adjustable wrench 1, it can meet the use requirements.

[0026] A wrench comprises an adjustable wrench 1, a wrench head body 2 is fixed to the handle end of the adjustable wrench 1, a limiting slide groove 2.1 is provided at the outer end of the wrench head body 2, a square groove 2.2 is further provided at the middle of the groove bottom of the limiting slide groove 2.1, and a through groove 2.4 is provided in the U-shaped groove 2.1 along the sliding direction of the square drive head 5.

[0027] A movable part 3 is slidably arranged in the limiting slide groove 2.1 on the spanner body 2, and a worm 4 is rotatably arranged in the square groove 2.2 on the spanner body 2. A limiting block 3.1 is fixed on the top of the movable part 3, and one end of the limiting block 3.1 close to the square driving head 5 is movably abutted against the upper end surface 2.5 of the spanner body 2. A tooth groove 3.2 meshing with the worm 4 is provided at the bottom of the movable part 3, and the movable part 3 is rotatably engaged with the worm 4.

[0028] A square drive head 5 is fixed to one end of the movable part 3, and a U-shaped groove 2.3 is provided on one side of the wrench body 2 located at the square drive head 5. The two side walls of the U-shaped groove 2.3 are used to apply force to the circular ring 7 at the top of the eye nut during the rotation process, thereby increasing the friction force on the circular ring 7. The groove width of the U-shaped groove 2.3 is greater than the thickness of the circular ring 7 at the top of the eye nut. When the circular ring 7 at the top of the eye nut is placed in the U-shaped groove 2.3, the square drive head 5 passes through the circular ring 7 at the top of the eye nut, thereby locking the circular ring 7 at the top of the eye nut to prevent accidental detachment when the wrench is rotated.

[0029] The square drive head 5 and the sleeve 6 can be purchased on the shopping platform. The square drive head 5 passes through the through slot 2.4 and is elastically connected to the connecting end of the sleeve 6. One end of the purchased sleeve 6 has an internal hexagonal groove 6.1 and a cylindrical outer surface. The outer surface of the purchased sleeve 6 needs to be cut into a regular hexagonal prism.

[0030] like Figure 8-10 The working principle is as follows: when removing the eye nut on the cylinder of the safety filter 8, first place the wrench horizontally, and place the circular ring 7 on the top of the eye nut in the U-shaped groove 2.3, and rotate the worm 4 to make the square drive head 5 pass through the circular ring 7 on the top of the eye nut to lock the circular ring 7 on the top of the eye nut to prevent accidental detachment when the wrench is turned. Then, the eye nut can be quickly removed by turning the wrench to avoid the wrench slipping and detaching during rotation to cause harm to people; at the same time, it can also be connected to the sleeve 6, which is convenient for disassembling and using different types of nuts or bolts.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wrench, comprising an adjustable wrench (1); characterized in that: A spanner body (2) is fixed at the handle end of the movable spanner (1), a movable part (3) is slidably arranged in a limiting sliding groove (2.1) on the spanner body (2), a worm (4) is rotatably arranged in a square groove (2.2) on the spanner body (2), the movable part (3) is rotatably engaged with the worm (4), a square driving head (5) is fixed at one end of the movable part (3), a U-shaped groove (2.3) is provided on one side of the spanner body (2) located on the square driving head (5), and the square driving head (5) passes through the through groove (2.4) and is elastically clamped with the connecting end of the sleeve (6).

2. A wrench according to claim 1, characterized in that: A limiting sliding groove (2.1) is provided at the outer end of the spanner body (2), a square groove (2.2) is also provided at the middle of the groove bottom of the limiting sliding groove (2.1), and a through groove (2.4) is provided in the U-shaped groove (2.3) along the sliding direction of the square driving head (5).

3. A wrench according to claim 1, characterized in that: A limit block (3.1) is fixed on the top of the movable part (3), and one end of the limit block (3.1) close to the square drive head (5) is movably abutted against the upper end surface (2.5) of the wrench body (2). A tooth groove (3.2) meshing with the worm (4) is provided at the bottom of the movable part (3).

4. A wrench according to claim 1, characterized in that: The groove width of the U-shaped groove (2.3) is greater than the thickness of the circular ring (7) at the top of the eye nut. When the circular ring (7) at the top of the eye nut is placed in the U-shaped groove (2.3), the square drive head (5) passes through the circular ring (7) at the top of the eye nut.

5. A wrench according to claim 1, characterized in that: The used end of the sleeve (6) has an inner hexagonal groove (6.1) inside and an outer surface of a regular hexagonal prism.

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