A rail transit maintenance tool

Abstract

The utility model discloses a track traffic is overhauled with tool, include: holding rod, adjusting assembly and operation subassembly, adjusting assembly fixed setting at one end of holding rod, adjusting assembly be used for adjusting the length of tool, operation subassembly fixed setting at one end of adjusting assembly away from holding rod, operation subassembly be used for changing the operation function of tool. Compared with prior art, through the adjusting assembly that sets up, realized the flexible adjustment of tool length, can adapt to the overhauling site of different depth, and locking piece can convert the axial movement of threaded drive into the radial tightening force of elastic locking piece, and lock firm and adjust convenient, through the operation subassembly that sets up, adopt replaceable operation head design, can switch bolt dismounting and clearance cleaning function fast, avoid frequently replacing tool, improve the overhauling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of rail transit maintenance equipment technology, and in particular to a maintenance tool for rail transit. Background Technology

[0002] As a high-capacity and high-efficiency public transportation mode, the operational safety of rail transit is of paramount importance, and regular maintenance of rail transit equipment is a key link in ensuring operational safety. The maintenance of rail transit equipment often requires the disassembly and assembly of connecting parts such as bolts and nuts, as well as the cleaning of dust and debris from equipment gaps, thus necessitating the use of various maintenance tools.

[0003] The length of existing rail transit maintenance tools is mostly fixed and cannot be adjusted according to the depth of the maintenance location. For hidden or deep maintenance parts, operation is inconvenient and may even require additional extensions, which reduces maintenance efficiency.

[0004] Therefore, we propose a new type of maintenance tool for rail transit. Utility Model Content

[0005] The main purpose of this utility model is to provide a maintenance tool for rail transit, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a maintenance tool for rail transit, comprising:

[0007] Grip;

[0008] An adjustment component is fixedly mounted at one end of the handle, and the adjustment component is used to adjust the length of the tool;

[0009] A working component is fixedly disposed at the end of the adjusting component away from the handle, and the working component is used to change the working function of the tool;

[0010] The adjustment assembly includes a telescopic sleeve fixedly disposed at one end of the grip, the telescopic sleeve being composed of at least two coaxially sleeved sleeve units, and adjacent sleeve units being fixed in position by a locking member;

[0011] The locking component includes a locking ring and an elastic locking component. The locking ring is sleeved on the end of the outer sleeve unit, and the elastic locking component is fixedly disposed at one end of the outer sleeve unit. The inner wall of the elastic locking component abuts against the outer surface of the inner sleeve unit. The inner surface of the locking ring is provided with an internal thread, and the outer surface of one end of the outer sleeve unit is provided with an external thread. The locking ring is threadedly connected to the outer sleeve unit to drive the elastic locking component to tighten.

[0012] As a further description of the above technical solution, the working component includes a mounting base and a working head. The mounting base is fixedly connected to the end of the telescopic sleeve away from the handle. The side of the mounting base away from the telescopic sleeve is provided with a polygonal slot. One end of the working head is provided with a plug-in part adapted to the polygonal slot. The side wall of the mounting base is provided with a positioning hole. A positioning bolt is threaded into the positioning hole. The end of the positioning bolt abuts against the plug-in part to fix the working head.

[0013] As a further description of the above technical solution, the working head includes a bolt removal and installation head and a gap cleaning head, wherein a flat scraper is provided at the end of the gap cleaning head away from the insertion part.

[0014] As a further description of the above technical solution, the grip bar has a hollow cavity inside, and a storage battery is installed in the hollow cavity. A lamp ring is embedded on the side wall of the grip bar near the telescopic sleeve. A switch for controlling the opening and closing of the lamp ring is provided on the outer surface of the grip bar. The switch, the storage battery and the lamp ring are connected in series to form a circuit.

[0015] As a further description of the above technical solution, two symmetrically distributed sliders are fixedly connected to the outer side wall of the inner sleeve unit, and two sliding grooves adapted to the sliders are opened on the inner side wall of the outer sleeve unit.

[0016] As a further description of the above technical solution, the elastic locking member has a conical structure.

[0017] As a further description of the above technical solution, the end of the grip rod away from the adjustment assembly is threadedly connected to an end cap for sealing the hollow cavity.

[0018] As a further description of the above technical solution, a protective sleeve is provided on the outer surface of the grip.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The adjustable components enable flexible adjustment of the tool length, which can be adapted to maintenance parts of different depths. The locking components can convert the axial movement of the threaded drive into the radial tightening force of the elastic locking components, which is secure and easy to adjust.

[0021] 2. With its customizable work components and replaceable work head design, the system allows for quick switching between bolt removal / installation and gap cleaning functions, avoiding frequent tool changes and improving maintenance efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a maintenance tool for rail transit according to the present invention;

[0023] Figure 2 This is a cross-sectional view of a maintenance tool for rail transit according to the present invention;

[0024] Figure 3 This is a schematic diagram of the locking component structure of a maintenance tool for rail transit according to the present invention;

[0025] Figure 4 This is a schematic diagram of the working component structure of a maintenance tool for rail transit according to this utility model.

[0026] In the diagram: 1. Handle; 2. Adjustment assembly; 3. Working assembly; 21. Telescopic sleeve; 23. Locking ring; 24. Elastic locking element; 22. External thread; 31. Mounting base; 35. Working head; 32. Polygonal slot; 36. Insertion part; 33. Positioning hole; 34. Positioning bolt; 351. Bolt removal and installation head; 352. Gap cleaning head; 11. Battery; 12. Light ring. Detailed Implementation

[0027] To make the technical means, creative features, and objectives of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0030] Please see Figures 1-4This utility model provides a maintenance tool for rail transit, including: a handle 1, an adjustment component 2, and a working component 3. These three components are sequentially and fixedly connected to form a complete working link. The adjustment component 2 is the core of length adjustment; its telescopic sleeve 21 consists of at least two coaxially fitted sleeve units. The coaxial design ensures the straightness of the tool during telescopic movement, preventing offset from affecting working accuracy. The locking component, as the fixing mechanism for the sleeve unit, includes a locking ring 23 and an elastic locking component 24. The locking ring 23 is fitted onto the end of the outer sleeve unit, and the internal thread on its inner surface precisely matches the external thread 22 on the outer surface of the outer sleeve unit. The elastic locking component 24 is fixed to one end of the outer sleeve unit. Initially, its inner wall is slightly abutting against the outer surface of the inner sleeve unit. Through the threaded connection between the locking ring 23 and the outer sleeve unit, rotating the locking ring 23 generates an axial driving force, forcing the elastic locking component 24 to tighten radially, thereby firmly clamping the inner sleeve unit and achieving length fixation. By setting up the above structure, the tool length can be adjusted, solving the problem that existing tools cannot be adapted to different depths of maintenance parts.

[0031] Further explanation: the working component 3 consists of a mounting base 31 and a working head 35. The mounting base 31 is fixedly connected to the end of the telescopic sleeve 21 away from the handle 1, serving as the mounting carrier for the working head 35. A polygonal slot 32 is formed on the side of the mounting base 31 away from the telescopic sleeve 21. The insertion part 36 at one end of the working head 35 is perfectly matched in shape and size to the polygonal slot 32. The polygonal structure effectively prevents the insertion part 36 from rotating within the slot during operation, ensuring operational stability. A positioning hole 33 is provided through the side wall of the mounting base 31. The inner wall of the positioning hole 33 has internal threads, which are threaded to a positioning bolt 34. When the insertion part 36 is inserted into the polygonal slot 32, the positioning bolt 34 is tightened, and its end will tightly abut against the outer surface of the insertion part 36. Through friction, the working head 35 is firmly fixed to the mounting base 31, preventing it from falling off during operation. Through the above-described structure, the working component 3 can be quickly replaced, providing a basis for switching between different operational needs, avoiding frequent replacement of the entire tool, and improving maintenance efficiency.

[0032] To further explain, the working head 35 includes a bolt removal / installation head 351 and a gap cleaning head 352. The bolt removal / installation head 351 is designed according to the specifications of commonly used bolts in rail transit equipment and can be matched with bolts and nuts of different sizes to achieve removal and installation operations. The gap cleaning head 352, at the end furthest from the insertion part 36, is designed as a flat scraper. This flat structure allows it to penetrate deep into the gaps in the equipment. The scraper's edge is smooth and has a certain degree of hardness, effectively removing dust and debris from the gaps while avoiding scratching the equipment surface. Through the above structural design, the two core needs most commonly encountered in rail transit maintenance—bolt removal / installation and gap cleaning—are met.

[0033] To further explain, the handle 1 has an internal hollow cavity designed specifically to house the battery 11, providing power for the lighting. A light ring 12 is embedded in the side wall of the handle 1 near the telescopic sleeve 21, surrounding the handle 1 to provide 360° omnidirectional lighting and eliminate blind spots. A switch on the outer surface of the handle 1 allows for easy one-handed operation. The switch, battery 11, and light ring 12 are connected in series via wires to form a complete circuit. Pressing the switch connects the circuit, illuminating the light ring 12. Releasing the switch disconnects the circuit and stops the lighting. The circuit design is simple and reliable, ensuring stable lighting functionality. This mechanism adds a lighting system, solving the problem of visibility during maintenance in concealed areas and dimly lit environments, improving maintenance accuracy and safety.

[0034] To further explain, two symmetrically distributed sliders are fixedly connected to the outer wall of the inner sleeve unit, and two corresponding sliding grooves adapted to the sliders are opened on the inner wall of the outer sleeve unit. The sliders and sliding grooves are fitted with a clearance, which allows the inner sleeve unit to freely extend and retract along the axial direction of the outer sleeve unit, and also prevents relative rotation of adjacent sleeve units during the extension and retraction process through the limiting effect of the sliders and sliding grooves, ensuring the coaxiality of the adjustment assembly 2 as a whole, and preventing the operation accuracy from being affected by the rotation of the sleeve during operation.

[0035] To further explain, the elastic locking element 24 adopts a conical structure, with its small end fixed to the end of the outer sleeve unit and its large end extending towards the inner sleeve unit. The elastic locking element 24 is made of spring steel, possessing high elastic limit and fatigue strength, and is not prone to plastic deformation during long-term use, ensuring reliable locking. When the locking ring 23 moves towards the elastic locking element 24 via threaded transmission, the conical structure can uniformly convert the axial pressure of the locking ring 23 into radial tightening force, making the contact between the inner wall of the elastic locking element 24 and the outer surface of the inner sleeve unit tighter and the locking more secure.

[0036] To further explain, the end of the grip 1 furthest from the adjustment component 2 is fitted with an end cap via a threaded connection. The end cap is tightly connected to the grip 1, effectively preventing dust and moisture from entering the hollow cavity and avoiding moisture damage to the battery 11. When the battery 11 needs to be replaced, it can be easily removed by rotating the end cap. After replacement, rotating the end cap in the opposite direction will reseal the cavity, ensuring a reliable seal.

[0037] To further explain, a protective sleeve made of rubber is fitted onto the outer surface of the grip 1. The surface of the protective sleeve has anti-slip textures to further increase the friction between the hand and the grip 1, ensuring a firm grip even when the hands are sweaty.

[0038] It should be noted that this utility model is a maintenance tool for rail transit. When using it, select the appropriate working head 35 according to the maintenance needs. If bolts need to be disassembled or assembled, select the bolt disassembly / assembly head 351; if gaps need to be cleaned, select the gap cleaning head 352. Align the insertion part 36 of the working head 35 with the polygonal slot 32 of the mounting base 31 and insert it forcefully to the bottom. Then tighten the positioning bolt 34 on the side wall of the mounting base 31 until the end of the positioning bolt 34 tightly abuts against the insertion part 36, ensuring the working head 35 is firmly fixed. Rotate the locking ring 23 to move it away from the elastic locking member 24 along the external thread 22 of the outer sleeve unit. The elastic locking member 24 is released from its tightened state. At this time, the inner sleeve unit can be pulled according to the depth of the maintenance area. Through the guiding action of the slider and the groove, the telescopic sleeve 21 can be adjusted to a suitable length. After adjustment, rotate the locking ring 23 in the opposite direction to move it towards the elastic locking member 24 and apply pressure. The conical elastic locking member 24 tightens radially, firmly clamping the inner sleeve unit to achieve length fixation. If the area under maintenance is dimly lit or obscured, press the switch on the outer surface of the handle 1 to connect the circuit between the battery 11 and the lamp ring 12. The lamp ring 12 illuminates, ensuring the operator can clearly observe the area under maintenance. After the work is completed, press the switch again to disconnect the circuit and turn off the lighting. During operation, the operator holds the protective sleeve on the outer surface of the handle 1 to keep the tool stable and performs the corresponding operations through the working head 35. When using the bolt removal and installation head 351, align it with the bolt or nut and rotate the handle 1 to remove or install it. When using the crevice cleaning head 352, insert the flat scraper into the equipment crevice and scrape back and forth to remove debris. To switch operating functions, first loosen the positioning bolt 34, pull the connector 36 of the current operating head 35 out of the polygonal slot 32, then insert the connector 36 of the replaced operating head 35, and retighten the positioning bolt 34. The switching process is quick and convenient.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A maintenance tool for rail transit, characterized in that, include: Grip (1); Adjustment component (2), which is fixedly disposed at one end of the handle (1), is used to adjust the length of the tool; The working component (3) is fixedly disposed at the end of the adjusting component (2) away from the handle (1), and the working component (3) is used to change the working function of the tool; The adjustment assembly (2) includes a telescopic sleeve (21) fixedly disposed at one end of the handle (1). The telescopic sleeve (21) is composed of at least two sleeve units that are coaxially connected. The adjacent sleeve units are fixed in position by locking components. The locking component includes a locking ring (23) and an elastic locking component (24). The locking ring (23) is sleeved on the end of the outer sleeve unit. The elastic locking component (24) is fixedly disposed at one end of the outer sleeve unit, and the inner wall of the elastic locking component (24) abuts against the outer surface of the inner sleeve unit. The inner surface of the locking ring (23) is provided with an internal thread, and the outer surface of one end of the outer sleeve unit is provided with an external thread (22). The locking ring (23) is threadedly connected to the outer sleeve unit to drive the elastic locking component (24) to tighten.

2. The maintenance tool for rail transit according to claim 1, characterized in that, The working component (3) includes a mounting base (31) and a working head (35). The mounting base (31) is fixedly connected to the end of the telescopic sleeve (21) away from the handle (1). The side of the mounting base (31) away from the telescopic sleeve (21) is provided with a polygonal slot (32). One end of the working head (35) is provided with a plug-in part (36) adapted to the polygonal slot (32). The side wall of the mounting base (31) is provided with a positioning hole (33). The positioning hole (33) is internally threaded with a positioning bolt (34). The end of the positioning bolt (34) abuts against the plug-in part (36) to fix the working head (35).

3. A maintenance tool for rail transit according to claim 2, characterized in that, The working head (35) includes a bolt removal head (351) and a crevice cleaning head (352), wherein the crevice cleaning head (352) has a flat scraper at one end away from the insertion part (36).

4. A maintenance tool for rail transit according to claim 1, characterized in that, The grip (1) has a hollow cavity inside, and a storage battery (11) is installed inside the hollow cavity. A lamp ring (12) is embedded on the side wall of the grip (1) near the telescopic sleeve (21). A switch for controlling the opening and closing of the lamp ring (12) is provided on the outer surface of the grip (1). The switch, the storage battery (11) and the lamp ring (12) are connected in series by wires to form a circuit.

5. A maintenance tool for rail transit according to claim 1, characterized in that, Two symmetrically distributed sliders are fixedly connected to the outer side wall of the inner sleeve unit, and two sliding grooves adapted to the sliders are opened on the inner side wall of the outer sleeve unit.

6. A maintenance tool for rail transit according to claim 1, characterized in that, The elastic locking element (24) has a conical structure.

7. A maintenance tool for rail transit according to claim 4, characterized in that, The end of the grip (1) away from the adjustment assembly (2) is threaded with an end cap for sealing the hollow chamber.

8. A maintenance tool for rail transit according to claim 1, characterized in that, The outer surface of the grip (1) is covered with a protective sleeve.

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