A multifunctional modular integrated maintenance device

By designing a multifunctional modular integrated maintenance device, the problems of single function and low integration of traditional railway maintenance tools have been solved, realizing the efficient integration and flexible use of maintenance tools, and improving maintenance efficiency and quality.

CN122353518APending Publication Date: 2026-07-10HUNAN TECHN COLLEGE OF RAILWAY HIGH SPEED

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN TECHN COLLEGE OF RAILWAY HIGH SPEED
Filing Date
2026-05-28
Publication Date
2026-07-10

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Abstract

This invention relates to the field of railway maintenance technology and discloses a multifunctional modular integrated maintenance device, including a handheld lever module and at least one inspection module. The handheld lever module includes a hollow lever, and the inspection module is detachably installed at the end and / or outer periphery of the hollow lever. A light source module is detachably installed inside the hollow lever. The light source module is used to provide working illumination for the inspection module, or to provide warning light when the inspected object malfunctions, or to provide interactive guidance for inspection work. The light source module does not occupy extra space, and its installation position can adaptively provide working illumination, supplementary lighting, or guidance for the inspection module, improving maintenance quality. The inspection module includes various types, and various types of inspection modules can be freely combined and quickly replaced according to inspection needs. In addition, the inspection module is an independent unit and can be upgraded or repaired and replaced individually. This maintenance device can significantly improve the operator's inspection and maintenance efficiency and quality.
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Description

Technical Field

[0001] This invention relates to the field of railway maintenance technology, and in particular to a multifunctional modular integrated maintenance device. Background Technology

[0002] To reduce costs and increase efficiency in railway system maintenance operations, the primary consideration is to transform single, independent work scenarios into complex, interconnected integrated task scenarios. Maintenance personnel must become multi-skilled, which means a significant increase in workload, complexity of work scenarios, and the variety of tools required. Under this new working environment, traditional railway system maintenance tools reveal numerous shortcomings:

[0003] 1. Due to the low integration and single function of various tools, maintenance personnel usually need to carry a variety of maintenance tools, such as inspection hammers, pin splitters, and flashlights. The large number of tools they carry takes up a lot of space, making their workload heavy.

[0004] 2. In the same maintenance scenario, multiple types of tools operate independently, requiring a significant amount of time to search for and switch between them, which seriously affects work efficiency and quality.

[0005] 3. It is difficult for a single person to hold and use multiple tools at the same time, requiring multiple people to work together, which increases the cost of maintenance and reduces the cost-effectiveness ratio.

[0006] 4. Existing low-integration multi-functional tools do not have a modular design, which makes it impossible to freely combine, flexibly replace, expand and update functional modules to cope with changing maintenance scenarios and work tasks. Moreover, a single functional failure can cause the entire tool to be scrapped, resulting in high usage costs.

[0007] Although modular design concepts have been gradually applied in the railway maintenance tool industry, efficient integration and modular design of core maintenance functions have not yet been achieved, making it difficult to meet the development needs of railway operation and maintenance towards standardization and efficiency. Therefore, developing a comprehensive railway maintenance device that combines multi-functional integration and modularity has become key to solving the current pain points in the industry. Summary of the Invention

[0008] This invention provides a multifunctional modular integrated maintenance device suitable for daily inspection and fault repair operations in rail transit maintenance scenarios. It can provide light source support for inspection and / or maintenance processes, and can support free combination and rapid replacement of functional modules, thereby reducing maintenance costs, reducing workload, and improving maintenance efficiency.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0010] A multifunctional modular integrated maintenance device includes a handheld lever module and at least one inspection module. The handheld lever module includes a hollow lever. The inspection module is detachably installed at the end of the hollow lever and / or on the outer periphery of the hollow lever. A light source module is detachably installed inside the hollow lever. The light source module is used to provide working lighting for the inspection module, or to provide warning lighting when the inspected object malfunctions, or to provide interactive guidance for inspection work.

[0011] Furthermore, the light emitted by the light source module can be dispersed or concentrated from the hollow end of the hollow rod toward the inspection object of the inspection module.

[0012] Furthermore: the inspection module is an inspection hammer module, which includes a hammer head and a hammer tail. The hammer head has a columnar structure, and the hammer tail has a conical structure.

[0013] Furthermore: the inspection module is a sleeve module, which includes a sleeve seat and a sleeve.

[0014] Furthermore: the inspection module is a pin-pulling module, which includes a pin-pulling hook and a pin-pulling body. The pin-pulling hook is rotatably connected to the pin-pulling body. The ends of the hand-held lever module and the pin-pulling body away from the hand-held lever module respectively provide a force application point and a force support point when the pin-pulling hook pulls the pin.

[0015] Furthermore: the inspection module is a split pin module, the split pin module includes a split pin head, and the split pin head has a flat structure.

[0016] Furthermore: the inspection module is a splitting module, which includes a pin hook, a pin body, and a splitting head. The pin hook is rotatably connected to the pin body, and the splitting head is installed at the end of the pin body away from the handheld lever module. The splitting head has a flat structure. The handheld lever module and the splitting head provide the force application point and the force support point, respectively, when the pin hook pulls the pin.

[0017] Furthermore: the pull pin hook is riveted to the pull pin body, and the pull pin body is provided with a first limiting baffle that limits the maximum angle at which the pull pin hook rotates to the working state angular position.

[0018] Furthermore, the pin body is also provided with a second limiting baffle to limit the angle position of the pin hook when it is rotated to the storage state.

[0019] Furthermore: the second limiting baffle is provided with a magnetic block, which is used to magnetically attract and pull the pin hook.

[0020] The beneficial effects of this invention are as follows:

[0021] 1) The handheld pole module is set with a hollow pole, and a light source module is installed inside the hollow pole. The inspection module is installed at the end of the hollow pole. The light source module does not occupy extra space, and its installation position can adaptively provide working lighting, supplementary lighting or inspection interaction guidance for the inspection module, thereby improving the quality and efficiency of maintenance.

[0022] 2) Inspection modules include various types, and the various types of inspection modules can be freely combined and quickly replaced according to inspection needs. In addition, the inspection modules are independent units and can be upgraded or repaired and replaced individually.

[0023] 3) Based on the handheld lever module, the inspection module is installed on the outer periphery of the handheld lever module or coaxially installed on the end of the handheld lever module. The resulting multi-functional modular integrated inspection device is compact in structure and about the same size as a regular railway inspection hammer. It can be used for multiple purposes during operation, is easy to hold, and can significantly improve the operator's inspection and maintenance efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the integrated maintenance device described in Example 1;

[0025] Figure 2 for Figure 1 Exploded view;

[0026] Figure 3 for Figure 1 A schematic diagram showing the pin hook in the open position in the integrated maintenance device;

[0027] Figure 4 This is a schematic diagram of the splitting module described in Example 1;

[0028] Figure 5 for Figure 4 A schematic diagram of the splitting module from another perspective;

[0029] Figure 6 for Figure 4 A cross-sectional schematic diagram of the splitting module shown;

[0030] Figure 7 for Figure 3 Another view from this angle.

[0031] Legend:

[0032] Handheld module 1; Hollow rod 11; Switch hole 111; Mounting expansion module 12; Inspection module 2; Inspection hammer module 21; Hammer tail 211; Hammer body 212; Hammer head 213; Splitting module 22; Pulling pin hook 221; Hook head 2211; Pulling pin body 222; Storage cavity 2221; First limit baffle 2222; Second limit baffle 2223; Magnetic block 2224; Hook removal notch 2225; Splitting pin head 223; Rivet 224; Light source module 3; Light source switch 31; Fastening screw 34. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1

[0035] like Figure 1 The multifunctional modular integrated maintenance device shown includes a handheld lever module 1 and an inspection module 2. The handheld lever module 1 includes a hollow lever 11. The number of inspection modules 2 is configured according to maintenance needs. The inspection modules 2 can be detachably installed at the end and / or the outer periphery of the hollow lever 11 in advance or when formal use is required. A light source module 3 is detachably installed inside the hollow lever 11 of the handheld lever module 2. The light source module 3 is used to provide working lighting for the inspection module 2, or to provide a warning light when the inspected object malfunctions, or to provide interactive guidance for the inspection work.

[0036] The central axis of the light source module 3 coincides with the central axis of the hollow rod 11. The light emitted by the light source module 3 can be diffused or concentrated outward from the hollow end of the hollow rod 11. When the inspection device 2 performs inspection operations, the light emitted by the light source module 3 is concentrated towards the inspection object of the inspection module 2; when a warning light source is needed, the light emitted by the light source module 3 is directed towards the object that needs to be warned; when multiple people are working together on inspection and maintenance, the light emitted by the light source module 3 can also assist in interaction and facilitate communication and guidance between inspection personnel. The light source of the light source module is selected according to the conventional light source requirements. Specifically, the detachable installation method of the light-diffusing end of the light source module of the hollow rod 11 and the inspection module 2 is as follows: the inspection module 2 is sleeved on the outer periphery of the end of the hollow rod 11.

[0037] The hollow rod 11 is also equipped with a limiting block (not shown) for the light source module. The limiting block is used to limit the installation depth of the light source module 3. The light source module 3 is equipped with a light source switch 31 for user operation. A switch hole 111 is opened on the wall of the hollow rod 11. After the light source module 3 enters the hollow rod 11 with the light source switch 31 aligned with the corner of the switch hole 111, it contacts the limiting block. A fastening hole for the light source module is also opened on the wall of the hollow rod 11. A fastening screw 34 is screwed into the fastening hole. The fastening screw 34 abuts against the light source module 3 and applies a pre-tightening force, thereby fastening the light source module 3.

[0038] Hollow rod 11 is made of high-strength, lightweight alloy material, and has an overall round rod structure, such as... Figure 2 As shown, the hollow rod 11 is designed with threaded structures at both ends so as to form a threaded connection with the inspection module 2.

[0039] As mentioned earlier, the number of inspection modules 2 is configured according to inspection requirements. Specifically, the inspection modules can be inspection hammer modules, pin pulling modules, pin splitting modules, splitting and pulling modules, sleeve modules, or any other modules that can be used for inspection and maintenance of the railway system.

[0040] Figure 1 and Figure 2 The two ends of the hollow rod 11 shown are the inspection hammer module 21 and the splitting module 22, respectively. The inspection hammer module 21 includes a hammer tail 211, a hammer body 212 and a hammer head 213. The hammer tail 211 has a conical structure and the hammer head 213 has a columnar structure. The hammer body 212 has a through hole with internal threads in the middle. The hollow rod 11 has an external thread structure at the end that is connected and fixed to the through hole. The inspection hammer module 21 is made of alloy steel. The hollow rod 11 at this time serves as the operating handle of the inspection hammer module 21.

[0041] like Figure 3 and Figure 4 As shown, the splitting module 22 includes a splitting hook 221, a splitting body 222, and a splitting head 223. The splitting hook 221 is rotatably connected to the splitting body 222. The splitting hook 221 is riveted to the splitting body 222 by a rivet 224. The rivet 224 has a clearance fit with the splitting hook 221 and an interference fit with the splitting body 222. The splitting hook 221 can rotate around the rivet 224 within a certain range, causing a relative positional change with the splitting body 222, thus opening the splitting module. There are two states: the open position and the closed position. The splitting head 223 is installed at the end of the puller body 222 away from the hand lever module. The splitting head 223 has a flat structure and is curved as a whole. The puller body 222 is cylindrical as a whole. The non-riveted end of the puller hook 221 is provided with a hook head 2211. The hook head 2211 is a pointed hook with an inward curve, which is convenient to hook the cotter pin. The hand lever module 1 and the splitting head 223 provide the force application point and the force support point respectively when the puller hook 221 pulls out the cotter pin.

[0042] The hollow rod 11 has an internal thread at the end where the splitting module 22 is installed, and the corresponding end of the pull pin 222 has an external thread that connects with the internal thread of the hollow rod.

[0043] The width of the pin-pulling hook 221 gradually increases from the hook head 2211 towards the riveting end to ensure working strength during pin-pulling. When the pin-pulling hook 221 is in the open position, the bending direction of its hook head 2211 is opposite to the bending direction of the pin-splitting head 22.

[0044] like Figure 4 and Figure 5 As shown, the pin-pulling body 222 has a storage cavity 2221 for storing the pin-pulling hook 221 in its retracted position. The storage cavity 2221 also includes a first limiting baffle 2222 that limits the maximum angle at which the pin-pulling hook rotates to its working position (i.e., the open position), and a second limiting baffle 2223 that limits the angle at which the pin-pulling hook rotates to its retracted position (i.e., the closed position). The first limiting baffle 2222 and the second limiting baffle 2223 respectively cooperate with the two sides of the pin-pulling hook 221 to limit the maximum opening angle and the minimum retracting angle of the pin-pulling hook. Figure 5 and Figure 6 As shown, the second limiting baffle 2223 is provided with a magnetic block 2224. The magnetic block 2224 is used to magnetically attract the pull pin 221 to prevent the pull pin 221 from leaving the storage cavity 2221 when it is in the closed state. Specifically, the second limiting baffle 2223 is provided with a mounting hole for installing the magnetic block. The magnetic block 2224 is installed in the mounting hole with an interference fit. The surface of the magnetic block coincides with the surface of the second limiting baffle. The magnetic block can be made of magnet.

[0045] The pin body 222 is also provided with a hook removal notch 2225, which makes it easier for the inspection operator to pull out the pin hook 221 from the storage cavity 2221.

[0046] Inspection module 2 can also be a pin-pulling module, which can be a module with only the relevant structural settings for pin-pulling operation in the above-mentioned splitting and pulling modules; inspection module can also be a pin-splitting module, which can be a module with only the relevant structural settings for pin-splitting operation in the above-mentioned splitting and pulling modules.

[0047] When bolt tightening operations are required in the railway system, the inspection module 2 can also use the sleeve module. The sleeve module includes a sleeve seat and a sleeve. The sleeve is installed on the sleeve seat. By selecting the sleeve module with the corresponding specification sleeve and sleeve seat and installing it on the end of the hollow rod, the bolts of the corresponding specification can be tightened accurately.

[0048] Figure 7The hollow rod 11 is shown to have an expansion mounting module 12 on its outer periphery. This expansion mounting module 12 provides mounting positions for more inspection modules 2. The aforementioned installation of inspection modules on the outer periphery of the hollow rod refers to mounting the inspection modules onto the expansion mounting module. The expansion mounting module 12 is generally designed as a universal mounting rail. The inclusion of the expansion mounting module further expands the application of the integrated maintenance device.

[0049] The following describes the operation of the maintenance device in this embodiment in conjunction with a specific application scenario:

[0050] 1. During routine inspections, install the inspection hammer module and light source module onto the handheld lever module. Hold the hollow lever module and use the hammer head to tap rail fasteners, locomotive and rolling stock braking components, etc., judging the tightness of the components based on the sound. In environments with insufficient lighting, activate the lighting function of the light source module by controlling the light source switch to improve the clarity of the inspection view, eliminating the need to carry an additional flashlight.

[0051] As a crucial auxiliary tool in railway system maintenance, the light source module typically requires separate holding to work with the main tool, consuming both hands. This innovative design cleverly integrates the light source module within the hollow rod of the handheld lever module, maximizing internal space without increasing the external size of the maintenance device. It also eliminates the need for the operator to free their hands, making inspection and maintenance operations convenient and quick. The light source module's illumination direction is aligned with the axis of the hollow rod, providing illumination, supplementary lighting, and guidance. The illuminated area corresponds to the module's position, the location of the object being inspected, and the inspector's line of sight, ensuring comprehensive visual, tactile, and verbal guidance, thus improving maintenance quality.

[0052] It should be noted that the inspection module can be installed as needed according to different maintenance operation scenarios. When there is sufficient light during inspection and maintenance, the light source module may not be required, which can reduce the weight of the maintenance equipment and reduce the workload.

[0053] 2. During cotter pin removal, the operator pulls out the pin hook through the notch, placing it in the open position. The hook head engages with the annular structure at the head of the cotter pin. The split pin head acts as a fulcrum for removal, forming a short lever arm between the hook and the split pin fulcrum, and a long lever arm between the hollow rod and the split pin fulcrum. The operator applies force along the long lever arm, using leverage to pull out the cotter pin. After removal, the hook is retracted into the storage cavity, where the magnetic block on the second limiting baffle attracts it, placing it in the closed position.

[0054] During the splitting operation, the pin hook is in the retracted position. The flat structure of the splitting head is used to split the tail of the cotter pin to prevent the cotter pin from loosening and being lost.

[0055] After the splitting and pulling module and the handheld lever module are installed, the overall structure is basically coaxial, which does not increase the space occupied by the maintenance device in the horizontal and vertical directions, making it easy to carry. The splitting head can be used as the splitting head for splitting pins and as a fulcrum for pulling pins. The pulling body can be used to store the pulling hook and as a short lever arm during the pulling operation. When the pulling hook is in the retracted position, the pulling body can also be used as an extension handle for the inspection hammer module, expanding the operating range of the inspection hammer module. The relevant components of the splitting and pulling module fully demonstrate their multi-functional roles.

[0056] 3. When tightening bolts, select the appropriate sleeve module and install it onto the hollow rod to achieve precise bolt tightening.

[0057] 4. In case of emergency requiring warning operations, such as emergency maintenance at night, the light source module can be selected with a strobe or warning function for on-site warning. Alternatively, this warning light source can be designed as an inspection module and installed at the end of the hollow pole.

[0058] This maintenance device, through a scientific and rational layout design, highly integrates multiple functional inspection modules onto a handheld lever module. Each inspection module, centered on the handheld lever module, can be quickly disassembled, replaced, and freely combined as needed, depending on the different maintenance scenarios. Furthermore, each inspection module is independent and can be replaced or upgraded individually. If one inspection module is damaged, only the damaged module needs to be replaced. Upgrading individual modules allows for greater functional integration and flexible expansion, eliminating the need to replace the entire maintenance device. This minimizes costs while maintaining optimal performance. The maintenance device is small in size and compact in structure, comparable in size to a standard railway inspection hammer. This saves space in the toolbox compared to traditional maintenance tools such as lighting and pin-pulling devices, and the inspection process is clean and efficient, eliminating the need to waste time searching for and replacing tools.

[0059] The multi-functional and highly integrated design of this maintenance device can effectively reduce labor intensity, improve operator efficiency, and enhance the quality of inspection and maintenance.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multifunctional modular integrated maintenance device, characterized in that: The device includes a handheld lever module (1) and at least one inspection module (2). The handheld lever module (1) includes a hollow lever (11). The inspection module (2) is detachably installed at the end of the hollow lever (11) and / or on the outer periphery of the hollow lever. A light source module (3) is detachably installed inside the hollow lever (11). The light source module (3) is used to provide working lighting for the inspection module (2), or to provide warning lighting when the inspected object malfunctions, or to provide interactive guidance for inspection work.

2. The multifunctional modular integrated maintenance device according to claim 1, characterized in that: The light emitted by the light source module (3) can be dispersed or concentrated from the hollow end of the hollow rod (11) toward the inspection object of the inspection module (2).

3. The multifunctional modular integrated maintenance device according to claim 1, characterized in that: The inspection module (2) is an inspection hammer module (21), which includes a hammer head (213) and a hammer tail (211). The hammer head (213) is a columnar structure, and the hammer tail (211) is a conical structure.

4. The multifunctional modular integrated maintenance device according to claim 1, characterized in that: The inspection module (2) is a sleeve module, which includes a sleeve seat and a sleeve.

5. The multifunctional modular integrated maintenance device according to claim 1, characterized in that: The inspection module (2) is a pin-pulling module. The pin-pulling module includes a pin-pulling hook and a pin-pulling body. The pin-pulling hook is rotatably connected to the pin-pulling body. The ends of the hand-held lever module and the pin-pulling body away from the hand-held lever module provide the force application point and the force support point respectively when the pin-pulling hook pulls the pin.

6. The multifunctional modular integrated maintenance device according to claim 1, characterized in that: The inspection module (2) is a splitting pin module, which includes a splitting pin head, which has a flat structure.

7. The multifunctional modular integrated maintenance device according to claim 1, characterized in that: The inspection module (2) is a splitting module, which includes a pin hook (221), a pin body (222), and a splitting head (223). The pin hook (221) is rotatably connected to the pin body (222). The splitting head (223) is installed at the end of the pin body (222) away from the hand lever module. The splitting head (223) has a flat structure. The hand lever module (1) and the splitting head (223) provide the force application point and the force support point respectively when the pin hook (221) pulls the pin.

8. The multifunctional modular integrated maintenance device according to claim 5 or 7, characterized in that: The pull pin hook (221) is riveted to the pull pin body (222), and the pull pin body (222) is provided with a first limiting baffle (2222) to limit the maximum angle of the pull pin hook to the working state angle position.

9. The multifunctional modular integrated maintenance device according to claim 5 or 7, characterized in that: The pull pin body (222) is also provided with a second limiting baffle (2223) to limit the angle position of the pull pin hook when it is rotated to the storage state.

10. The multifunctional modular integrated maintenance device according to claim 9, characterized in that: The second limiting baffle (2223) is provided with a magnetic block (2224), which is used to magnetically pull the pin hook.