Lithium battery impact wrench for railway

By designing the bending structure and support rod in the railway lithium battery impact wrench, the force problem when removing the fastening nut and the inconvenience of disassembly of the transverse nut is solved, and more labor-saving operation and higher convenience are achieved.

CN222857840UActive Publication Date: 2025-05-13HUNAN SANXIN RAILWAY ENG EQUIP CO LTD
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Patent Information

Application Number
CN202421748786.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-05-13
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

When disassembling tighter nuts for existing railway lithium battery impact wrench, staff need to spend a lot of effort to maintain the balance of the wrench, and it is not convenient to disassemble the nuts arranged horizontally.

Method used

A lithium-ion impact wrench for railways including a bent structure and a support rod is designed. The bending structure allows the wrench to remain in a transverse state, making it easier to remove the nuts arranged in transversely, and the support rod can assist in supporting the ground when removing the nuts, reducing the pressure on staff.

Benefits of technology

By adding bending structure and support rods, the strength problem when disassembling the fastening nut is solved, and the disassembly of the transverse nut is simplified, improving the operation convenience and effort saving of staff.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of impact wrenches for railways, in particular to a lithium battery impact wrench for railways, which comprises a wrench body, the wrench body is divided into a grip section and a wrench section, a bending structure is arranged between the grip section and the wrench section and comprises a first connecting plate fixed at the bottom end of the grip section, a first hinge seat is fixed on the lower side of the first connecting plate, and a second hinge seat is fixed on the lower side of the second connecting plate. A second connecting plate is fixed to the upper side of the wrench section, second hinge seats are fixed to the positions, located on the two sides of the first hinge seat, of the upper side of the second connecting plate, a supporting table is fixed to one side of each second hinge seat, threaded holes are formed in the side faces of the first hinge seats and the side faces of the second hinge seats, threaded screwing rods are rotationally arranged in the threaded holes, and screwing buttons are rotationally arranged at one ends of the threaded screwing rods. Supporting rods are hinged to the side faces of the wrench sections, and supporting legs are hinged to the bottom ends of the supporting rods. According to the lithium battery impact wrench for the railway, the problems that when an existing lithium battery impact wrench for the railway is used for disassembling a fastened nut, a worker needs to spend large effort to keep balance of the wrench, and the nut which is transversely arranged is inconvenient to disassemble are solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of railway impact wrenches, in particular to a railway lithium battery impact wrench. Background Art

[0002] The railway lithium battery impact wrench is a tool specially used for railway track maintenance and repair. It is powered by lithium batteries and has the characteristics of high efficiency, portability, and easy operation. It is widely used in the installation, maintenance and repair of railway tracks and is one of the necessary professional tools for railway workers.

[0003] When using an existing lithium-ion impact wrench to remove a nut, the worker needs to hold the handle with his hand to prevent the wrench from rotating so as to better remove the nut. However, when encountering a nut that is severely corroded, the worker sometimes needs to use a lot of force to keep the wrench balanced, which is quite laborious. In addition, when removing a horizontally fixed nut, the entire wrench needs to be placed horizontally, which is extremely inconvenient to use. Utility Model Content

[0004] The technical problem to be solved by the utility model is that when the existing lithium-electric impact wrench for railways is used to dismantle relatively tight nuts, the staff needs to spend a lot of effort to keep the wrench balanced, and it is not convenient to dismantle the nuts arranged horizontally.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is a lithium-ion impact wrench for railways, including a wrench body, which is divided into a grip section and a wrench means, and a bending structure is provided between the grip section and the wrench means, the bending structure including a connecting plate 1 fixed to the bottom end of the grip section, a hinge seat 1 is fixed on a lower side of the connecting plate, a connecting plate 2 is fixed on an upper side of the wrench means, a hinge seat 2 is fixed on both sides of the upper side of the connecting plate 2, a support platform is fixed on one side of the hinge seat 2, threaded holes are provided on the side surfaces of the hinge seat 1 and the hinge seat 2, a threaded tightening rod is rotatably provided in the threaded hole, a tightening button is rotatably provided at one end of the threaded tightening rod, a support rod is hinged on the side surface of the wrench means, and a supporting foot is hinged on the bottom end of the support rod.

[0006] As a further solution of the utility model: a clamping rod is fixed at the bottom end of the support rod at the hinge of the support foot, and a clamping groove is opened on the side of the handle section at the support rod, which can clamp the support rod when it is not in use.

[0007] As a further solution of the utility model: handles are fixed on both sides of the top of the grip section, and a lithium battery is arranged inside the grip section.

[0008] As a further solution of the utility model: a nut wrench is fixed to the lower side of the wrench means by bolts for removing the nut, and a motor structure is arranged inside the wrench means.

[0009] As a further solution of the utility model: the length of the threaded tightening rod is greater than the sum of the widths of the hinge seat 1 and the hinge seat 2, so as to facilitate the adjustment of the tightness between the hinge seat 1 and the hinge seat 2.

[0010] As a further solution of the utility model: a turntable is fixed at one end of the threaded tightening rod, and a plurality of anti-slip grooves are provided on the sides of the turntable and the tightening knob to facilitate the rotation of the threaded tightening rod.

[0011] Compared with the prior art, the utility model has the following advantages: 1. The utility model adds a bending structure, which can keep the lever in a horizontal position, so as to facilitate the removal of the nut arranged horizontally;

[0012] 2. The support rod structure is added to assist in supporting the nut on the ground when removing it, reducing the pressure on the workers and making them more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 The utility model is a three-dimensional overall structure of a lithium battery impact wrench for railway use. Figure 1 .

[0015] Figure 2 The utility model is a three-dimensional overall structure of a lithium battery impact wrench for railway use. Figure 2 .

[0016] Figure 3 This is a partial structural section of a lithium battery impact wrench for railway use in the utility model. Figure 1 .

[0017] Figure 4 This is a partial structural section of a lithium battery impact wrench for railway use in the utility model. Figure 2 .

[0018] In the attached figure:

[0019] 1. Grip section; 2. Wrench means; 3. Bending structure; 4. Support rod; 5. Support foot; 6. Nut wrench 1.1. Snap-in groove; 1.2. Handle; 3.1. Connecting plate 1; 3.2. Articulated seat 1; 3.3. Connecting plate 2; 3.4. Articulated seat 2; 3.5. Support platform; 3.6. Threaded tightening rod; 3.7. Tightening knob. DETAILED DESCRIPTION

[0020] 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 in 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.

[0021] The utility model provides a technical solution to solve the existing problems raised in the background technology.

[0022] Combined with Figure 2 , 4 It can be known that the device includes a wrench body, which is divided into a grip section 1 and a wrench means 2. A bending structure 3 is provided between the grip section 1 and the wrench means 2. The bending structure 3 includes a connecting plate 1 3.1 fixed to the bottom end of the grip section 1, a hinge seat 1 3.2 is fixed to the lower side of the connecting plate 1 3.1, a connecting plate 2 3.3 is fixed to the upper side of the wrench means 2, an hinge seat 2 3.4 is fixed to the upper side of the connecting plate 2 3.3 on both sides of the hinge seat 1 3.2, a support platform 3.5 is fixed to one side of the hinge seat 2 3.4, and the sides of the hinge seat 1 3.2 and the hinge seat 2 3.4 are fixed. A threaded hole is provided in each of them, a threaded tightening rod 3.6 is rotatably provided in the threaded hole, a tightening button 3.7 is rotatably provided at one end of the threaded tightening rod 3.6, a clamping rod is fixed at the bottom end of the support rod 4 at the hinge of the support foot 5, a clamping groove 1.1 is provided at the side of the grip section 1 at the support rod 4, which can clamp the support rod 4 when it is not in use; handles 1.2 are fixed on both sides of the top of the grip section 1, and a lithium battery is provided inside the grip section 1; a nut wrench 6 is fixed to the lower side of the wrench means 2 by bolts for removing nuts, and a motor structure is provided inside the wrench means 2;

[0023] Combined with Figure 1 , 3 It can be seen that the length of the threaded tightening rod 3.6 is greater than the sum of the widths of the hinge seat 1 3.2 and the hinge seat 2 3.4, which is convenient for adjusting the tightness between the hinge seat 1 3.2 and the hinge seat 2 3.4; a turntable is fixed at one end of the threaded tightening rod 3.6, and a plurality of anti-slip grooves are provided on the sides of the turntable and the tightening knob 3.7, which are convenient for rotating the threaded tightening rod 3.6, and a support rod 4 is hinged on the side of the lever 2, and a support foot 5 is hinged on the bottom end of the support rod 4;

[0024] The working principle of the present application is as follows: when removing nuts on railways, when removing vertically fixed nuts, the support rod 4 can be first taken out from the clamping groove 1.1, and then it can be supported obliquely on the ground, and then the nut spanner 6 can be aligned with the nut to remove it. During the removal process, if the nut is difficult to remove, the support rod 4 can provide auxiliary support for the staff, saving the staff's physical strength;

[0025] When removing the transverse nut, first loosen the tightening button 3.7 to create a gap between the articulated seat 1 3.2 and the articulated seat 2 3.4, so that it can rotate relative to the threaded tightening rod 3.6 until an angle of about ninety degrees is formed between the grip section 1 and the lever section 2, and the support platform 3.5 is set on the ground, and then tighten the tightening button 3.7 to increase the friction between the articulated seat 1 3.2 and the articulated seat 2 3.4, and then the nut can be removed.

[0026] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A lithium battery impact wrench for railway use, comprising a wrench body, characterized in that: The wrench body is divided into a grip section (1) and a lever means (2), a bending structure (3) is provided between the grip section (1) and the lever means (2), the bending structure (3) comprises a connecting plate 1 (3.1) fixed at the bottom end of the grip section (1), a hinge seat 1 (3.2) is fixed at the lower side of the connecting plate 1 (3.1), a connecting plate 2 (3.3) is fixed at the upper side of the lever means (2), and the upper side of the connecting plate 2 (3.3) is located between the two hinge seats 1 (3.2). A hinge seat 2 (3.4) is fixed on the side, a support platform (3.5) is fixed on one side of the hinge seat 2 (3.4), threaded holes are provided on the sides of the hinge seat 1 (3.2) and the hinge seat 2 (3.4), a threaded tightening rod (3.6) is rotatably provided in the threaded hole, a tightening knob (3.7) is rotatably provided at one end of the threaded tightening rod (3.6), a support rod (4) is hingedly connected to the side of the lever means (2), and a support foot (5) is hingedly connected to the bottom end of the support rod (4).

2. A lithium battery impact wrench for railway use according to claim 1, characterized in that: A clamping rod is fixed to the bottom end of the support rod (4) at the hinged position of the support foot (5), and a clamping groove (1.1) is provided on the side of the handle section (1) at the support rod (4).

3. A lithium battery impact wrench for railway use according to claim 1, characterized in that: Handles (1.2) are fixed on both sides of the top of the grip section (1), and a lithium battery is arranged inside the grip section (1).

4. A lithium battery impact wrench for railway use according to claim 1, characterized in that: A nut spanner (6) is fixed to the lower side of the spanner means (2) via bolts, and a motor structure is provided inside the spanner means (2).

5. The lithium battery impact wrench for railway use according to claim 1, characterized in that: The length of the threaded tightening rod (3.6) is greater than the sum of the widths of the first hinge seat (3.2) and the second hinge seat (3.4).

6. A lithium battery impact wrench for railway use according to claim 1, characterized in that: A turntable is fixed to one end of the threaded tightening rod (3.6), and a plurality of anti-slip grooves are provided on the sides of the turntable and the tightening knob (3.7).