Maintenance tool special for electric switch machine

The T-shaped structure design, which integrates the equipment key, socket, and open-end wrench, solves the inconvenience caused by the diversity of tools in the maintenance of the ZD6 electric switch machine, and realizes efficient and convenient maintenance operations.

CN223617658UActive Publication Date: 2025-12-02TIANJIN IRON WORKS CO LTD
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Patent Information

Application Number
CN202423004895.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-12-02
Estimated Expiration
2034-12-05

AI Technical Summary

Technical Problem

The existing ZD6 electric switch machine requires a variety of tools during maintenance, which makes operation inconvenient, difficult to carry, and prone to loss, especially affecting the efficiency of emergency repairs.

Method used

Design a multi-functional maintenance tool that integrates equipment key, socket, open-end wrench and testing steel plate into one unit. It adopts a T-shaped structure and uses the socket and key as lever arms for operation, simplifying the tool replacement and usage process.

Benefits of technology

It improves maintenance efficiency and convenience, reduces the risk of tool loss, ensures operational accuracy and safety, and is suitable for both routine and emergency maintenance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223617658U_ABST
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Abstract

The utility model discloses a special maintenance tool for an electric switch machine, which comprises a detection steel sheet with a rectangular structure, the width of the detection steel sheet is 20mm, and the thickness of the detection steel sheet is 4mm; the equipment key is used for opening a machine cover of the electric switch machine; the sleeve and the solid wrench are used for adjusting the adjusting screw at the tail part of the indication rod; the equipment key is fixed on the upper surface of the detection steel sheet, the sleeve is fixed on the lower surface of the detection steel sheet, and the sleeve and the equipment key are located at the same end of the detection steel sheet; the solid wrench is a groove arranged on the side wall of the detection steel sheet. According to the electric switch machine maintenance tool, the functions of four common maintenance tools in the maintenance operation of the electric switch machine are ingeniously integrated, the tool is convenient to carry, and the working efficiency can be remarkably improved in actual operation. The integral design of the tool is of a T-shaped structure, so that the transverse pen part and the vertical pen part of the tool can be used as a force arm handle during operation, and the convenience of operation is greatly enhanced.
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Description

Technical Field

[0001] This utility model belongs to the field of switch machine maintenance technology, and in particular relates to a special maintenance tool for electric switch machines. Background Technology

[0002] The ZD6 electric switch machine is one of the most widely used pieces of equipment in metallurgical enterprises and the national railway transportation industry. It is primarily responsible for changing the direction of railway turnouts, thereby controlling the train's trajectory. This equipment is an indispensable and crucial railway signaling device in the modernization and automation of railway transportation. For the railway signaling field, the maintenance and upkeep of the ZD6 electric switch machine has always been a critical task. During maintenance work, workers need to use a variety of tools and instruments, including equipment keys, adjustable wrenches, socket wrenches, electrician's tools, electrical instruments, and testing tools—more than ten different types in total. This complexity brings many inconveniences to maintenance work, especially during emergency repairs, causing significant difficulties for personnel in carrying and using tools. Therefore, developing a multi-functional maintenance tool to reduce the burden on workers and improve maintenance efficiency has become an urgent need.

[0003] In the maintenance process of the ZD6 electric switch machine, several key steps are essential. For example, the first step is to open the machine cover, which involves inserting the key into the lock hole and turning the key 90 degrees to open the cover. Secondly, the switch machine indicator rod needs to be adjusted. This requires loosening the fixing screws of the indicator rod with a wrench, then adjusting the adjusting screw at the end of the indicator rod with a socket wrench to ensure the indicated parameters are normal before tightening. Finally, after adjustment, a 20mm wide and 4mm thick steel plate is used to check the "4mm unlocked" status of the turnout. In practice, some specific problems arise when performing these steps. First, when turning the key, because the machine lock is relatively tight, and the equipment is usually installed outdoors, it is susceptible to rust due to weather conditions. Furthermore, the key itself is thin and has low torque. Therefore, when turning the key, workers often need to insert a tool such as a screwdriver into a special hole at the end of the key, using leverage to turn the key smoothly. Secondly, two wrenches are needed when loosening or tightening the indicator rod fixing screws. One wrench is used to hold the fixing screw in place to prevent it from turning, while the other wrench is used to loosen or tighten the nut. Thirdly, since the adjusting screw at the end of the indicator rod is embedded inside the indicator rod, only a 16mm socket wrench can be used for adjustment. Finally, although the steel plate used to check for "4mm non-locking" is an essential tool, its simple structure makes it easy to lose. As can be seen from the above three steps, these steps alone require six tools: the equipment key, a screwdriver, two adjustable wrenches, a socket wrench, and a steel plate for testing. Frequent tool changes are not only inconvenient for operation and carrying but also easily lead to tool loss, causing many inconveniences for maintenance work. Therefore, developing a multi-functional maintenance tool is particularly necessary. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a special maintenance tool for electric switch machines, which can realize the task of maintenance and repair of electric switch machines.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A special maintenance tool for electric switch machines includes:

[0007] A rectangular detection steel sheet, the width of which is 20mm and the thickness of which is 4mm;

[0008] Equipment key, used to open the cover of the electric switch machine;

[0009] A socket and an open-end wrench are used to adjust the adjusting screw at the end of the indicator lever; wherein:

[0010] The device key is fixed to the upper surface of the detection steel sheet, the sleeve is fixed to the lower surface of the detection steel sheet, and the sleeve and the device key are located at the same end of the detection steel sheet; the open-end wrench is a groove formed in the side wall of the detection steel sheet.

[0011] Preferably, the electric switch machine is a ZD6 type electric switch machine.

[0012] Preferably, the inner diameter of the sleeve is 16 mm.

[0013] Preferably, the open-end wrench is an 8mm open-end wrench.

[0014] Compared with the prior art, the advantages and positive effects of this application are:

[0015] 1. This utility model features a unique T-shaped structure, which is not only sturdy and durable but also naturally creates a torque handle effect during use. This eliminates the need for traditional screwdrivers or other specialized tools, as well as complex socket wrenches. With the included key and socket wrench, users can easily open the machine cover and conveniently adjust the screws, greatly simplifying the operation process and improving work efficiency.

[0016] 2. The process of opening the fixing screw of the indicator rod using this utility model is also very simple. First, the user can use a wrench to firmly hold the fixing screw, and then use the vertical lever arm to hold the indicator rod in place. This design can effectively prevent unnecessary rotation of the screw shaft during operation, thereby ensuring the accuracy and safety of the operation.

[0017] 3. One end of this utility model is specially designed with a steel plate detection function. This function makes the device not only more comprehensive in terms of functionality, but also more convenient in terms of carrying and use. The design of the steel plate detection allows users to easily perform various testing tasks, whether on-site testing or routine maintenance, which can be completed quickly, greatly improving work efficiency and convenience.

[0018] 4. This utility model combines multifunctionality and portability in its design, resulting in a very compact size that is easy for users to carry. Furthermore, by integrating multiple functions, users can enjoy one-stop service without needing to carry multiple tools, making operation more convenient. This design not only improves work efficiency but also greatly enhances the user experience. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of this application;

[0021] Figure 2 This is a front view of a preferred embodiment of this application;

[0022] Figure 3 This is a right view of a preferred embodiment of this application;

[0023] Figure 4 This is a top view of a preferred embodiment of this application.

[0024] The items include: 1. Equipment key; 2. Socket; 3. Open-end wrench; 4. Inspection steel plate. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; and it can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figures 1 to 4 A special maintenance tool for electric switch machines includes an equipment key 1, a socket 2, an open-end wrench 3, and a testing steel plate 4; wherein:

[0028] The detection steel sheet 4 has a rectangular structure, with a width of 20mm and a thickness of 4mm;

[0029] Equipment key 1 is mainly used to open the cover of the electric switch machine;

[0030] Socket 2 and open-end wrench 3 are mainly used to adjust the adjusting screw at the end of the indicator lever; wherein:

[0031] The device key 1 is fixed to the upper surface of the detection steel sheet 4, the sleeve 2 is fixed to the lower surface of the detection steel sheet 4, and the sleeve 2 and the device key 1 are located at the same end of the detection steel sheet 4; the open-end wrench 3 is a groove formed on the side wall of the detection steel sheet 4.

[0032] The electric switch machine is a ZD6 type electric switch machine.

[0033] Open-end wrenches are also commonly known as open-end wrenches.

[0034] The design concept of this utility model lies in cleverly integrating the functions of four commonly used maintenance tools in the maintenance of ZD6 electric switch machines, forming a compact and flexible multi-functional maintenance tool. This tool is not only easy to carry, but also significantly improves work efficiency in actual operation. Its overall design presents a "T"-shaped structure, allowing both the horizontal and vertical sections of the tool to serve as lever handles during operation, thus greatly enhancing the convenience of operation.

[0035] Specifically, this multi-functional maintenance tool integrates four functions: an equipment key, a 16mm socket, an 8mm open-end wrench, and a 4mm non-locking test steel plate. The equipment key and socket wrench functions are cleverly arranged at both ends of the tool's horizontal axis, allowing the operator to easily grip the vertical axis as a lever handle for effective operation. The open-end wrench function is located slightly above the middle of the vertical axis. When the open-end wrench function is needed, the operator can lock the wrench portion that holds the screw in place on the indicator rod. During tightening or loosening of the nut, the horizontal axis rotates accordingly, ensuring smooth operation. When the key or socket end is engaged with the indicator rod, it also prevents the screw from rotating, further ensuring operational stability and safety.

[0036] Furthermore, the tool's vertical section is only 4mm thick, a perfectly designed feature that allows for easy testing of the "4mm non-locking" condition by simply inserting the end of the tool into the turnout switch rail. This design not only improves the accuracy of the test but also greatly simplifies the operation, making maintenance work more efficient and convenient.

[0037] In summary, this multi-functional maintenance tool, through its ingenious design, integrates four commonly used maintenance functions into one. It achieves not only a compact and portable structure but also demonstrates exceptional convenience and practicality in actual operation. Whether for routine maintenance tasks or rapid response in emergencies, this tool provides robust support, significantly improving work efficiency and safety.

[0038] Working principle:

[0039] 1. Detailed operating instructions for the equipment key function: First, insert the end of this special tool key into the lock hole of the switch machine. Next, firmly grasp the vertical end of the tool, using it as a lever arm. Then, forcefully rotate the tool, causing the mechanical structure inside the lock hole to rotate 90 degrees. After completing this action, the switch machine cover will open smoothly, allowing for subsequent maintenance or inspection work.

[0040] 2. Detailed Operating Instructions for the Open-End Wrench Function: When using an open-end wrench, first accurately engage the notch of the wrench with the fixing screw on the indicator rod. Next, use the adjustable wrench to turn the nut connected to the screw. When you observe the screw beginning to rotate, indicating it is starting to loosen or tighten, you can use the horizontal end of the open-end wrench to engage the indicator rod, making the vertical end an effective lever arm. This effectively prevents the screw from rotating, making the loosening or tightening process smoother and more convenient.

[0041] 3. Detailed Operating Instructions for the Socket Function: When using the socket, it needs to be placed over the adjusting screw on the indicator rod. Similarly, the vertical end of the socket can be used as a lever arm to adjust the screw's position by turning the socket. This method allows for precise screw adjustment to meet specific technical requirements.

[0042] 4. Detailed Operating Instructions for the Steel Plate Testing Function: When performing the "4mm Non-locking" test, the end of the vertical pen can be directly inserted into the gap between the switch rail and the stock rail. Then, operate the electric switch machine to perform normal operation. During this process, the end of the testing steel plate will move with the switch rail, thus accurately detecting whether the gap between the switch rail and the stock rail meets the 4mm standard. If the gap is too large or too small, it will affect the normal operation of the turnout; therefore, this test is very important.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A special maintenance tool for electric switch machines, characterized in that, include: A rectangular detection steel sheet (4) has a width of 20 mm and a thickness of 4 mm. Equipment key (1), used to open the cover of the electric switch machine; A socket (2) and a deadbolt (3) are used to adjust the adjusting screw at the end of the indicator rod; wherein: The equipment key (1) is fixed on the upper surface of the detection steel sheet (4), the sleeve (2) is fixed on the lower surface of the detection steel sheet (4), and the sleeve (2) and the equipment key (1) are located at the same end of the detection steel sheet (4); the open-end wrench (3) is a groove opened on the side wall of the detection steel sheet (4).

2. The special maintenance tool for electric switch machines according to claim 1, characterized in that, The electric switch machine is a ZD6 type electric switch machine.

3. The special maintenance tool for electric switch machines according to claim 1, characterized in that, The inner diameter of the sleeve (2) is 16 mm.

4. The special maintenance tool for electric switch machines according to claim 1, characterized in that, The open-end wrench (3) is an 8mm open-end wrench.