Wrench sleeve for railway line
By designing a wrench socket for railway lines, the problems of difficult nut removal and idling are solved, fast and safe nut removal is achieved, and operational convenience and safety are improved.
Patent Information
- Application Number
- CN202422928807.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing railway line nuts are difficult to remove and are prone to idling, resulting in operational inconvenience and personal injury.
A wrench socket for railway lines is designed, including a socket body and a locking piece. One end of the socket body is provided with a joint hole, and the other end is a polygonal working hole. The side wall of the working hole is provided with a locking hole. The locking piece is installed in the locking hole to increase the force-bearing area of the nut and prevent the socket from idling.
The convenience and safety of nut disassembly are improved, idling of the sleeve is avoided, and operational efficiency and safety are improved.
Smart Images

Figure CN223477520U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field, specifically to a wrench sleeve for railway lines. Background Technology
[0002] A bolt wrench is a railway tool used for railway line maintenance. It is primarily used for tightening and loosening railway connecting nuts and for maintaining the nuts on concrete sleepers. In routine railway line maintenance, due to years of disrepair and inadequate lubrication of fasteners, many railway connecting nuts are severely corroded, making them difficult to remove with ordinary bolt wrenches. Furthermore, the wrench is prone to spinning freely during removal, which can damage the nuts and cause injuries to operators. Utility Model Content
[0003] This utility model addresses existing technical problems by providing a wrench sleeve for railway lines.
[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A wrench sleeve for railway lines includes a sleeve body and a locking member. One end of the sleeve body is provided with a connector hole and the other end is provided with a working hole. The working hole is polygonal. A locking hole is provided on the side wall of the working hole. The locking hole communicates with the working hole. The locking member is installed in the locking hole.
[0005] Based on the above technical solution, the present invention can be further improved as follows:
[0006] Preferably, the working hole is square or regular hexagonal.
[0007] Preferably, the locking hole is located on the inner edge of the working hole.
[0008] Preferably, the locking hole is disposed on the inner side of the working hole.
[0009] Preferably, the connector hole is square.
[0010] Preferably, the locking element is a locking screw or a locking bolt.
[0011] Preferably, the locking element is made of carbon steel.
[0012] The beneficial effects of this utility model are as follows: the sleeve body is connected to the wrench connector through the connector hole, and is fitted onto the nut to be tightened or loosened through the working hole. By installing a locking member on the side of the sleeve body, the end of the locking member is pressed against the nut to be tightened or loosened, increasing the force-bearing area of the nut to be tightened or loosened, strengthening the nut to be tightened or loosened, preventing the sleeve body from spinning freely, quickly completing the nut disassembly work, improving work efficiency and operation convenience, and avoiding damage to operators and nuts. Attached Figure Description
[0013] Figure 1 This is a cross-sectional schematic diagram of the wrench sleeve of this utility model;
[0014] Figure 2 This is a top view of the wrench sleeve of this utility model.
[0015] The attached diagram is labeled as follows: 1. Sleeve body; 1.1. Connector hole; 1.2. Working hole; 2. Locking element. Detailed Implementation
[0016] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0017] like Figure 1 and Figure 2 As shown, this utility model discloses a wrench socket for railway lines, including a socket body 1 and a locking component 2. One end of the socket body 1 is provided with a connector hole 1.1 for connecting to a wrench connector, and the other end is provided with a working hole 1.2 for connecting to a nut to be tightened or loosened. By operating the wrench, the nut to be tightened or loosened can be disassembled or installed, improving the convenience of operation. The working hole 1.2 is polygonal, and a locking hole is provided on the side wall of the working hole 1.2, which communicates with the working hole 1.2. The locking component 2 is installed in the locking hole, and the locking component 2 locks the nut to be tightened or loosened, preventing the socket body 1 from spinning freely and improving the convenience and safety of nut disassembly.
[0018] The shape of the working hole 1.2 can be set according to the shape of the nut to be tightened or loosened. The working hole 1.2 can be square or regular hexagonal. In this embodiment, the working hole 1.2 is regular hexagonal, which is used to disassemble the hexagonal nut and ensure that the sleeve body 1 can be smoothly fitted onto the hexagonal nut.
[0019] Furthermore, the locking hole is located on the inner edge of the working hole 1.2. In use, the end of the locking member 2 abuts against the outer edge of the nut to be tightened or loosened, increasing the force between the locking member 2 and the nut, increasing friction, ensuring rapid tightening or loosening of the nut, further improving the efficiency of tightening or loosening the nut, and improving the convenience of operation.
[0020] Optionally, the locking hole is located on the inner side of the working hole 1.2. In use, the end of the locking member 2 abuts against the outer side of the nut to be tightened or loosened, increasing the contact area and friction of the nut, thus achieving rapid tightening or loosening of the nut.
[0021] The locking component 2 is made of carbon steel and can be either a locking screw or a locking bolt. It is threaded into the locking hole, and the locking screw can be an internal hexagonal locking screw. In this embodiment, the locking component 2 is an M24×80mm grade 8.8 carbon steel hexagonal bolt to ensure its structural strength and the locking effect on the tightened / loosened nut.
[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A wrench sleeve for railway lines, characterized in that, The sleeve body (1) includes a sleeve body (1) and a locking member (2). One end of the sleeve body (1) is provided with a connector hole (1.1) and the other end is provided with a working hole (1.2). The working hole (1.2) is polygonal. A locking hole is provided on the side wall of the working hole (1.2). The locking hole communicates with the working hole (1.2). The locking member (2) is installed in the locking hole.
2. The wrench socket for railway lines according to claim 1, characterized in that, The working hole (1.2) is square or regular hexagonal.
3. The wrench sleeve for railway lines according to claim 1 or 2, characterized in that, The locking hole is located on the inner edge of the working hole (1.2).
4. The wrench sleeve for railway lines according to claim 1 or 2, characterized in that, The locking hole is located on the inner side of the working hole (1.2).
5. The wrench socket for railway lines according to claim 1, characterized in that, The connector hole (1.1) is square.
6. The wrench socket for railway lines according to claim 1, characterized in that, The locking component (2) is a locking screw or a locking bolt.
7. The wrench socket for railway lines according to claim 6, characterized in that, The locking component (2) is made of carbon steel.