Pneumatic wrench with positioning mechanism

Abstract

The utility model discloses a pneumatic wrench with a positioning mechanism, which comprises a pneumatic wrench body, a handle is fixedly mounted at the bottom of the pneumatic wrench body, and a lithium battery is arranged in the handle. According to the pneumatic wrench, the pneumatic wrench body, the handle, the wrench head, the button, the balance weight base, the movable groove, the limiting groove, the movable plate, the limiting block, the supporting block, the positioning opening, the positioning block, the mounting groove, the vertical rod, the stop block, the lifting plate and the sleeve spring are matched with one another, the effect that the balance weight base can be conveniently disassembled without other tools is achieved, operation is easy, time and labor are saved, and the working efficiency is improved. And actual requirements of users can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic wrenches, in particular to a pneumatic wrench with a positioning mechanism. Background Art

[0002] A pneumatic wrench is an electric tool for tightening and loosening bolts and nuts. It is a tool for tightening high-strength bolts. It is used for the initial tightening and final tightening of large hexagonal head high-strength bolts installed in steel structure bridges, factory buildings, chemical industry, and power generation equipment, as well as the initial tightening of torsion shear type high-strength bolts, and in situations where there are strict requirements on the torque or axial force of bolt fasteners.

[0003] After searching, the patent with application number CN202323058642.0 discloses a pneumatic wrench, including a pneumatic wrench body, a handle at the bottom of the pneumatic wrench body, a counterweight seat at the bottom of the handle, the output shaft of the pneumatic wrench body is connected to a rotating shaft, a wrench mounting structure is provided at the end of the rotating shaft, the wrench mounting structure includes a wrench head, a clamping seat is coaxially connected to the end of the rotating shaft, a clamping seat is provided at the end of the clamping seat, a fixing hole connected to the clamping slot is provided on the outer wall of the clamping seat, a connecting column is provided at one end of the wrench head, and a second screw hole is provided on the connecting column corresponding to the fixing hole; the pneumatic wrench increases the stability of the independent vertical placement of the pneumatic wrench body by setting a counterweight seat.

[0004] However, in actual use, the above patent has the following defects: it is inconvenient to disassemble the counterweight seat without the help of other tools, and it is difficult to meet the actual needs of users. Therefore, we propose a pneumatic wrench with a positioning mechanism. Utility Model Content

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

[0006] To achieve the above-mentioned purpose, the present utility model provides the following technical solution: a pneumatic wrench with a positioning mechanism, comprising a pneumatic wrench body, a handle fixedly mounted at the bottom of the pneumatic wrench body, a lithium battery arranged inside the handle, an output shaft of the pneumatic wrench body coaxially connected to a transmission shaft, a wrench head being mounted at the end of the transmission shaft, a button being arranged on the handle, a lithium battery charging socket being arranged on the left side of the handle, and a counterweight seat being detachably arranged at the bottom of the handle.

[0007] Furthermore, a movable groove is provided on the top of the counterweight seat, a limiting groove is provided on the right bottom of the movable groove, and the limiting groove and the movable groove are communicated with each other.

[0008] Furthermore, a movable plate is movably connected to the right side of the movable groove, the top of the movable plate is fixedly connected to the bottom of the handle, the bottom right side of the movable plate is fixedly connected to a limiting block, the right side of the limiting block passes through the limiting groove and extends to the inside of the limiting groove, and the limiting block is movably engaged with the limiting groove.

[0009] Furthermore, a support block is fixedly connected to the bottom right side of the handle, a positioning opening is provided at the bottom of the support block, and a positioning block that can move up and down is clamped inside the positioning opening.

[0010] Furthermore, the top and bottom of the positioning block both pass through the positioning opening and extend to the outside of the positioning opening, and a mounting groove is provided on the right side of the top of the counterweight seat.

[0011] Furthermore, two vertical rods are fixedly connected to the bottom of the inner wall of the installation groove, and a stopper is fixedly connected to the top of the vertical rod. The top between the two vertical rods is slidably connected through a lifting plate, and the top of the lifting plate is in active contact with the bottom of the stopper.

[0012] Furthermore, the top of the lifting plate is fixedly connected to the bottom of the positioning block, and a sleeve spring is sleeved on the bottom of the surface of the vertical rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The utility model achieves the effect of facilitating the disassembly of the counterweight seat without the aid of other tools through the mutual cooperation of the pneumatic wrench body, handle, wrench head, button, counterweight seat, movable groove, limit groove, movable plate, limit block, support block, positioning port, positioning block, installation groove, vertical rod, stop block, lifting plate and sleeve spring, and is simple to operate, saving time and effort, thereby meeting the actual needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural diagram of the utility model;

[0016] Figure 2 This is a side structural diagram of the present utility model;

[0017] Figure 3 This is a side structural diagram of the counterweight seat of the utility model;

[0018] Figure 4 This is a structural cross-sectional view of the counterweight seat of the utility model;

[0019] Figure 5 This is a schematic structural diagram of the handle of the utility model.

[0020] In the figure: 1. Pneumatic wrench body; 2. Handle; 4. Wrench head; 5. Button; 6. Counterweight seat; 7. Movable slot; 8. Limit slot; 9. Movable plate; 10. Limit block; 11. Support block; 12. Positioning port; 13. Positioning block; 14. Mounting slot; 15. Vertical rod; 16. Stop block; 17. Lifting plate; 18. Sleeve spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] See also Figure 1-5A pneumatic wrench with a positioning mechanism includes a pneumatic wrench body 1, a handle 2 fixedly mounted at the bottom of the pneumatic wrench body 1, a lithium battery arranged inside the handle 2, an output shaft of the pneumatic wrench body 1 coaxially connected to a transmission shaft, a wrench head 4 is mounted at the end of the transmission shaft, a button 5 is arranged on the handle 2, a lithium battery charging socket is arranged on the left side of the handle 2, and a counterweight seat 6 is detachably arranged at the bottom of the handle 2.

[0025] Specifically, a movable groove 7 is provided on the top of the counterweight seat 6 , and a limiting groove 8 is provided on the right bottom of the movable groove 7 , and the limiting groove 8 and the movable groove 7 are communicated with each other.

[0026] During specific implementation, a movable plate 9 is movably connected to the right side of the movable groove 7, the top of the movable plate 9 is fixedly connected to the bottom of the handle 2, and the bottom right side of the movable plate 9 is fixedly connected to a limiting block 10. The right side of the limiting block 10 passes through the limiting groove 8 and extends to the inside of the limiting groove 8, and the limiting block 10 is movably clamped with the limiting groove 8.

[0027] Specifically, a support block 11 is fixedly connected to the bottom right side of the handle 2 , a positioning opening 12 is provided at the bottom of the support block 11 , and a positioning block 13 that can move up and down is clamped inside the positioning opening 12 .

[0028] During specific implementation, the top and bottom of the positioning block 13 both pass through the positioning opening 12 and extend to the outside of the positioning opening 12 , and a mounting groove 14 is provided on the right side of the top of the counterweight seat 6 .

[0029] Specifically, two vertical rods 15 are fixedly connected to the bottom of the inner wall of the installation groove 14, and a stopper 16 is fixedly connected to the top of the vertical rod 15. The top between the two vertical rods 15 is slidably connected through a lifting plate 17, and the top of the lifting plate 17 is in active contact with the bottom of the stopper 16.

[0030] During specific implementation, the top of the lifting plate 17 is fixedly connected to the bottom of the positioning block 13 , and a sleeve spring 18 is sleeved on the bottom of the surface of the vertical rod 15 .

[0031] In actual application: when the counterweight seat 6 needs to be disassembled, just push the lifting plate 17 downward to drive the positioning block 13 to move downward, and at the same time compress the sleeve spring 18, so that the positioning block 13 is disengaged from the positioning port 12, and then pull the handle 2 to the left, thereby driving the movable plate 9 and the limit block 10 to move to the left, thereby disengaging the limit block 10 from the limit slot 8, and then pull the handle 2 upward, thereby driving the movable plate 9 and the limit block 10 to move upward, thereby disengaging the movable plate 9 and the limit block 10 from the movable slot 7, so that the counterweight seat 6 can be removed.

[0032] 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 pneumatic wrench with a positioning mechanism, comprising a pneumatic wrench body (1), characterized in that: The pneumatic wrench body (1) is fixedly mounted with a handle (2) at the bottom, and a counterweight seat (6) is detachably provided at the bottom of the handle (2). A movable groove (7) is provided at the top of the counterweight seat (6). A limiting groove (8) is provided at the right bottom of the movable groove (7). A movable plate (9) is movably connected to the right side of the movable groove (7). The top of the movable plate (9) is fixedly connected to the bottom of the handle (2). A limiting block (10) is fixedly connected to the right bottom of the movable plate (9). The right side of the limiting block (10) passes through the limiting groove (8) and extends to the inside of the limiting groove (8). A support block (11) is fixedly connected to the bottom of the right side of the handle (2). A positioning opening (12) is provided at the bottom of the support block (11). A positioning block (13) that can move up and down is clamped inside the positioning port (12), and the top and bottom of the positioning block (13) both pass through the positioning port (12) and extend to the outside of the positioning port (12). A mounting groove (14) is provided on the right side of the top of the counterweight seat (6), and two vertical rods (15) are fixedly connected to the bottom of the inner wall of the mounting groove (14), and a stopper (16) is fixedly connected to the top of the vertical rod (15). The top of the two vertical rods (15) is slidably connected through a lifting plate (17), and the top of the lifting plate (17) is in active contact with the bottom of the stopper (16). The top of the lifting plate (17) is fixedly connected to the bottom of the positioning block (13), and a sleeve spring (18) is sleeved on the bottom of the surface of the vertical rod (15).

2. The pneumatic wrench with a positioning mechanism according to claim 1, characterized in that: The limiting groove (8) and the movable groove (7) are communicated with each other.

3. The pneumatic wrench with a positioning mechanism according to claim 2, characterized in that: The limiting block (10) and the limiting groove (8) are movably engaged with each other.

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