Self-supporting hydraulic wrench

Abstract

The utility model discloses a self-supporting hydraulic wrench which comprises a wrench body, a locking hole is formed in the wrench body, a supporting arm is fixedly connected to the side wall of the rear end of the wrench body, a vacuum pump is fixedly installed at the upper end of the supporting arm, and a suction cup communicated with the vacuum pump is arranged at the lower end of the supporting arm. According to the hydraulic wrench, through the unique structural design, when the hydraulic wrench is used in the environment without external support, the supporting arm is adsorbed to a working face through the action of the vacuum pump and the suction cup, and the supporting arm is fixed to the working face through the suction cup. Therefore, reverse supporting force is provided for twisting force generated when the hydraulic wrench works, the self-supporting purpose is achieved, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic wrenches, in particular to a self-supporting hydraulic wrench. Background Art

[0002] A hydraulic wrench is a bolt tightening tool capable of outputting and setting torque. It's a high-pressure hydraulic tool widely used in equipment maintenance and installation across various heavy chemical industries. Hydraulic torque wrenches come in two types: drive shaft and hollow.

[0003] When a hydraulic wrench is in operation, its locking nut generates a certain reaction twisting force when turning the nut. The side wall of the hydraulic wrench's support arm needs to be pressed against an external support to provide support for this twisting force. However, in some working environments, the lack of external support makes the use of the hydraulic wrench inconvenient. To address this problem, a self-supporting hydraulic wrench is proposed. Utility Model Content

[0004] The purpose of the present utility model is to provide a self-supporting hydraulic wrench to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a self-supporting hydraulic wrench, comprising a wrench body, a locking hole being provided on the wrench body, a support arm being fixedly connected to the rear end side wall of the wrench body, a vacuum pump being fixedly installed on the upper end of the support arm, a suction cup connected to the vacuum pump being provided at the lower end of the support arm, and the suction cup being fixedly connected to the support arm via a detachable fixing mechanism.

[0006] As a further preferred embodiment of the present technical solution, the detachable fixing mechanism consists of a mounting plate, a connecting column and an air pipe, the suction cup is fixedly connected to the mounting plate at one end close to the support arm, the other end of the mounting plate is fixedly connected to the connecting column, the other end of the connecting column is fixedly connected to the air pipe, an air hole that passes through the air pipe, the connecting column, the mounting plate and the suction cup is opened at the axial position of the air pipe, a mounting groove for accommodating the mounting plate is opened at the bottom of the support arm, a threaded hole that cooperates with the thread of the connecting column is opened at the center position of the mounting groove, a connecting hole connected to the vacuum pump is opened at the center position of the threaded hole, and the connecting hole and the air pipe are adapted to each other.

[0007] As a further preferred embodiment of the present technical solution, the inner diameter of the mounting groove is larger than the diameter of the mounting plate.

[0008] As a further preferred embodiment of the present technical solution, a plurality of anti-slip slots are provided on the outer ring side wall of the mounting plate.

[0009] As a further preferred embodiment of the present technical solution, the anti-slip slits are distributed along the axial direction of the mounting plate, and a plurality of the anti-slip slits are in an annular array.

[0010] As a further preferred embodiment of the present technical solution, a locking hole for accommodating a nut is provided on the wrench body, and a locking screw sleeve for locking the nut is provided in the locking hole.

[0011] As a further preferred embodiment of the present technical solution, a plurality of tooth grooves are provided on the inner wall of the locking screw sleeve, and the plurality of tooth grooves are arranged in a ring array.

[0012] The utility model provides a self-supporting hydraulic wrench, which has the following beneficial effects:

[0013] The utility model adopts a unique structural design, so that when the hydraulic wrench is used in an environment without external support, the support arm is adsorbed on the working surface through the action of the vacuum pump and the suction cup, thereby providing reverse support force for the twisting force generated when the hydraulic wrench is working, thereby achieving the purpose of self-support and having a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 A schematic diagram of the overall structure of the utility model from another perspective;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the splitting;

[0017] Figure 4 For this utility model Figure 3 Schematic diagram of the structure of A;

[0018] Figure 5 This is a schematic diagram of the structure of the wrench body in the utility model;

[0019] In the figure: 1. Wrench body; 2. Support arm; 3. Locking hole; 4. Vacuum pump; 5. Suction cup; 6. Air hole; 7. Mounting plate; 8. Anti-slip groove; 9. Connecting column; 10. Air pipe; 11. Mounting groove; 12. Threaded hole; 13. Connecting hole; 14. Locking screw sleeve; 15. Tooth groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figures 1 to 5As shown, in this embodiment, a self-supporting hydraulic wrench includes a wrench body 1, a locking hole 3 is opened on the wrench body 1, a support arm 2 is fixedly connected to the rear end side wall of the wrench body 1, a vacuum pump 4 is fixedly installed on the upper end of the support arm 2, and a suction cup 5 connected to the vacuum pump 4 is provided at the lower end of the support arm 2, and the suction cup 5 is fixedly connected to the support arm 2 through a detachable fixing mechanism.

[0022] Among them, the detachable fixing mechanism consists of a mounting plate 7, a connecting column 9 and an air pipe 10. The suction cup 5 is fixedly connected to the mounting plate 7 at one end close to the support arm 2, and the other end of the mounting plate 7 is fixedly connected to the connecting column 9. The other end of the connecting column 9 is fixedly connected to the air pipe 10. An air hole 6 that passes through the air pipe 10, the connecting column 9, the mounting plate 7 and the suction cup 5 is opened at the axial position of the air pipe 10. A mounting groove 11 for accommodating the mounting plate 7 is opened at the bottom of the support arm 2. A threaded hole 12 that is threadedly matched with the connecting column 9 is opened at the center position of the mounting groove 11. A connecting hole 13 that is connected to the vacuum pump 4 is opened at the center position of the threaded hole 12, and the connecting hole 13 and the air pipe 10 are adapted to each other.

[0023] The inner diameter of the mounting groove 11 is larger than the diameter of the mounting plate 7 .

[0024] This arrangement ensures that there is enough space to accommodate the user's fingers when the mounting plate 7 is rotated.

[0025] A plurality of anti-slip slits 8 are provided on the outer ring side wall of the mounting plate 7 . The anti-slip slits 8 are distributed along the axial direction of the mounting plate 7 , and the plurality of anti-slip slits 8 form a ring array.

[0026] The anti-slip groove 8 can increase the friction between the user's hand and the mounting plate 7.

[0027] Among them, a locking hole 3 for accommodating a nut is provided on the wrench body 1, and a locking screw sleeve 14 for locking the nut is provided in the locking hole 3 (the working principle of the locking screw sleeve 14 is the existing technology and is not described here in detail), and a plurality of tooth grooves 15 are provided on the inner wall of the locking screw sleeve 14, and the plurality of tooth grooves 15 are in a ring array.

[0028] The structural design of the locking screw sleeve 14 enables the hydraulic wrench to be applicable to locking various polygonal nuts, and is not limited to a single conventional hexagonal nut, and has a wider range of applications.

[0029] The utility model provides a self-supporting hydraulic wrench, the specific working principle of which is as follows:

[0030] When in use, when it is used in an environment where there is no external support, the suction cup 5 at the bottom of the support arm 2 can be attached to the work surface, and the air between the suction cup 5 and the work surface can be evacuated by the vacuum pump 4, so that the suction cup 5 is adsorbed on the work surface, and then the support arm 2 is fixed on the work surface, providing a reverse support force for the twisting force generated when the hydraulic wrench is working, thereby achieving the purpose of self-support. When there is a supportable object in the working environment, the conventional method can be used to directly press the support arm 2 against the support object to provide a reverse support force for the twisting force generated when the hydraulic wrench is working.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-supporting hydraulic wrench, comprising a wrench body (1), characterized in that: A locking hole (3) is provided on the wrench body (1); a support arm (2) is fixedly connected to the rear end side wall of the wrench body (1); a vacuum pump (4) is fixedly installed on the upper end of the support arm (2); a suction cup (5) connected to the vacuum pump (4) is provided at the lower end of the support arm (2); and the suction cup (5) is fixedly connected to the support arm (2) via a detachable fixing mechanism.

2. A self-supporting hydraulic wrench according to claim 1, characterized in that: The detachable fixing mechanism is composed of a mounting plate (7), a connecting column (9) and an air pipe (10); one end of the suction cup (5) close to the support arm (2) is fixedly connected to the mounting plate (7); the other end of the mounting plate (7) is fixedly connected to the connecting column (9); the other end of the connecting column (9) is fixedly connected to the air pipe (10); an air hole (6) penetrating the air pipe (10), the connecting column (9), the mounting plate (7) and the suction cup (5) is provided at the axial center position; a mounting groove (11) for accommodating the mounting plate (7) is provided at the bottom of the support arm (2); a threaded hole (12) threadedly matched with the connecting column (9) is provided at the center position of the mounting groove (11); a connecting hole (13) connected to the vacuum pump (4) is provided at the center position of the threaded hole (12); the connecting hole (13) and the air pipe (10) are adapted to each other.

3. A self-supporting hydraulic wrench according to claim 2, characterized in that: The inner diameter of the mounting groove (11) is greater than the diameter of the mounting plate (7).

4. A self-supporting hydraulic wrench according to claim 2, characterized in that: A plurality of anti-slip slits (8) are provided on the outer ring side wall of the installation plate (7).

5. The self-supporting hydraulic wrench according to claim 4, characterized in that: The anti-slip slits (8) are distributed along the axial direction of the mounting plate (7), and a plurality of the anti-slip slits (8) are arranged in a ring array.

6. The self-supporting hydraulic wrench according to claim 1, characterized in that: The wrench body (1) is provided with a locking hole (3) for accommodating a nut, and a locking screw sleeve (14) for locking the nut is arranged in the locking hole (3).

7. The self-supporting hydraulic wrench according to claim 6, characterized in that: A plurality of tooth grooves (15) are provided on the inner wall of the locking screw sleeve (14), and the plurality of tooth grooves (15) are arranged in a ring array.

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