Maintenance tooling and maintenance tooling assembly

Abstract

A maintenance tooling (100), comprising a tooling body (10) and a limiting assembly (20), wherein the tooling body (10) comprises a support platform (11), the support platform (11) being provided with a support portion (12); and the limiting assembly (20) is arranged on the support platform (11), the limiting assembly (20) comprises a limiting pin (21), an elastic member (22) and a traction member (23), the limiting pin (21) being movably connected to the tooling body (10) in a first direction, the traction member (23) being connected to the limiting pin (21), and the elastic member (22) being arranged in the first direction and the elastic member (22) abutting against the space between the limiting pin (21) and the tooling body (10). The maintenance tooling has a simple structure and may be easily mounted and dismounted. The present application further relates to a maintenance tooling assembly.

Description

Maintenance tooling and maintenance tooling components

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on December 8, 2023, with application number 202311690782.1, and invention name “Maintenance tooling and maintenance tooling components”, all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to a maintenance tool for a valve tower, and in particular to a maintenance tool and a maintenance tool assembly. Background Art

[0003] Currently, high-tower operations are common in fields like power generation and construction. When operators are working at height, they need to secure maintenance tooling to the tower to support the operator. Traditional maintenance tooling is complex and inconvenient to install and remove. Summary of the Invention

[0004] In view of this, an embodiment of the present application provides a maintenance tool and a maintenance tool assembly, which solves the problem that the maintenance tool has a complex structure and is inconvenient to install and disassemble.

[0005] The embodiment of the first aspect of the present application provides a maintenance tool, comprising:

[0006] The tooling body comprises a support platform and a support portion provided on the support platform;

[0007] A limiting assembly is provided on the tooling body, and the limiting assembly includes a limiting pin, an elastic member and a traction member. The limiting pin is movably connected to the tooling body along a first direction, the traction member is connected to the limiting pin, and the elastic member is provided along the first direction and is held between the limiting pin and the tooling body.

[0008] The maintenance tool provided in the embodiment of the present application includes a tool body and a limiting assembly provided on the tool body, wherein the tool body includes a support platform and a support portion provided on the support platform, wherein the support portion can be supported on the part to be fixed and the support platform can support an operator; the limiting assembly includes a limiting pin, an elastic member, and a pulling member, wherein the limiting pin can be pulled by the pulling member toward a direction away from the part to be fixed so that the limiting pin can avoid position when the maintenance tool is installed; the limiting pin can also be moved toward the part to be fixed to connect to the part to be fixed under the elastic force of the elastic member; and the limiting pin can also be driven by the pulling member to separate from the part to be fixed. The maintenance tool can be conveniently supported on the part to be fixed by the tool body and stably connected to the part to be fixed by the limiting pin, thereby reducing the probability of displacement and shaking of the maintenance tool; the maintenance tool uses the elastic member to apply elastic force to the limiting pin, thereby improving the connection stability between the limiting pin and the part to be fixed, and uses the pulling member to drive the limiting pin to move, thereby improving the convenience of operation and realizing rapid installation and removal of the maintenance tool. The maintenance tool provided in the embodiment of the present application can adapt to various equipment that require high-altitude maintenance, such as valve towers. The maintenance tool can be stably installed on the equipment using the tool body and limit components, solving the problem of complex structure and inconvenient installation and disassembly of traditional maintenance tool. It has the advantages of simple structure, small size, easy to carry, and easy to install and disassemble.

[0009] In some embodiments, the tooling body further includes a limit bracket provided on the support platform, and a guide hole is provided on the limit bracket; the limit pin is movably inserted into the guide hole, and the elastic member is supported between the limit pin and the limit bracket.

[0010] By adopting the above technical solution, the maintenance tool can use the limit bracket to install the limit pin, which facilitates the movement of the limit pin on the tool body.

[0011] In some embodiments, the limit pin includes a head and a rod that are connected, and a stop member fixed on the rod. The rod is movably inserted into the guide hole. The head and the stop member are respectively arranged on opposite sides of the guide hole along the first direction. The traction member is fixed to the head. The elastic member is sleeved on the rod and the two ends of the elastic member are respectively in contact with the limit bracket and the stop member.

[0012] By adopting the above technical solution, the limit pin can move back and forth on the limit bracket under the action of the traction part and the elastic part, so that the limit pin can limit the maintenance tooling; the control method of the limit pin is simple and convenient, easy to operate, which improves the convenience of installation and disassembly and can adapt to the requirements of high-altitude operations.

[0013] In some embodiments, the tooling body includes a support platform and a support portion, the support portion and the limit pin are arranged on the same side of the support platform, the limit pin can move along the first direction, and the limit pin and the support portion jointly limit the movement of the support platform in the first direction.

[0014] By adopting the above technical solution, both the support part and the limit pin can limit the movement of the support platform in the first direction, so as to reduce the probability of the support platform falling off from the part to be fixed, and improve the installation stability of the maintenance tooling.

[0015] In some embodiments, the tooling body includes two support portions, and the two support portions are respectively disposed at opposite ends of the support platform along the first direction.

[0016] By setting up two support parts, the two support parts can jointly limit the movement of the support platform in opposite directions, playing a role of rough positioning; the limit pin can move back and forth relative to the tooling body, playing a role of fine positioning; in this way, the maintenance tooling can be limited by the two support parts and the limit pin at the same time, and has better stability.

[0017] In some embodiments, the maintenance tool includes a plurality of the limiting components, and the plurality of limiting components are respectively arranged at opposite ends of the tool body along the first direction.

[0018] By adopting the above technical solution, the limit pins at both ends of the support platform can limit the movement of the tooling body in opposite directions, further improving the installation stability of the maintenance tooling and reducing the probability of the maintenance tooling moving and falling off; multiple limit pins provide multiple fixed points for the maintenance tooling, which can reduce the probability of the maintenance tooling flipping or shifting.

[0019] In some embodiments, the maintenance tool further includes a guide assembly, which includes a centralizing piece fixed to the tool body, wherein a centralizing hole is provided in the centralizing piece; the traction piece extends from the end of the corresponding limit pin and passes through the centralizing hole.

[0020] By adopting the above technical solution, the central part can integrate the traction parts in multiple limit assemblies into a bundle to facilitate the user to pull the traction parts; the user only needs one operation to pull the traction parts in multiple limit assemblies at the same time, thereby moving multiple limit pins at the same time, improving the convenience of operation, realizing single-person operation, and reducing labor costs.

[0021] In some embodiments, the guide assembly further includes a handle, and one end of the traction member passing through the central member is connected to the handle.

[0022] By adopting the above technical solution and providing a handle and a central part, the user can conveniently pull multiple traction parts, thereby improving the operational convenience of the maintenance tool and achieving rapid installation of the maintenance tool.

[0023] In some embodiments, the guide assembly further includes a steering member fixedly connected to the tooling body, the steering member being disposed between the concentrating member and the limiting assembly, and the steering member being used to steer the traction member.

[0024] By adopting the above technical solution, the steering part can turn the traction part so that the traction parts in multiple directions can be extended to the traction part concentration part for bundling. The maintenance tooling can concentrate the pulling force of the traction parts in multiple directions on one point for control, which greatly reduces the installation difficulty and installation time and realizes the rapid installation of the maintenance tooling.

[0025] In some embodiments, the steering member includes a base fixed on the tooling body and a pin shaft provided on the base. The pin shaft is spaced apart from the surface of the base to form a rope threading gap. The traction member abuts against the pin shaft to make the traction member turn.

[0026] By providing the steering member, the steering member can guide the extension direction of the traction member, so that the traction member extends from the limit pin to the central member for clustering.

[0027] In some embodiments, the guide assembly includes a plurality of steering members, and the plurality of steering members include a first steering member and a second steering member. The pin shaft of the first steering member is horizontally arranged, and each of the traction members extends from the limit pin and passes through the first steering member to change the height of the traction member; the pin shaft of the second steering member is vertically arranged, and several of the traction members pass through the second steering member to change the extension direction of the traction member, so that the traction member extends toward the concentrating member.

[0028] By adopting the above technical solution, the maintenance tooling uses multiple steering parts to flexibly adjust the steering of the traction parts, so that multiple traction parts can be concentrated on the central part, thereby concentrating the pulling force in multiple directions on one point, thereby realizing the rapid installation of the maintenance tooling.

[0029] In some embodiments, the limiting assembly further includes a directional member fixedly connected to the tooling body, the directional member is provided with a positioning hole, and the positioning hole is a circular hole opposite to and coaxially arranged with the limiting pin to enable the limiting pin to move in the horizontal direction.

[0030] By adopting the above technical solution, the directional member plays a directional role, so that the traction member can drive the limit pin to move horizontally, which is conducive to smoothly pulling the limit pin and avoiding the limit pin from being stuck in the positioning hole or stuck on the part to be fixed.

[0031] In some embodiments, the orientation member can turn the traction member, and the inner wall surface of the positioning hole away from the hole opening of the limiting pin is an arc surface or a chamfered surface.

[0032] By adopting the above technical solution, the positioning hole can make the traction member turn, and the inner wall surface of the hole is an arc surface or a chamfered surface, which can reduce the wear of the traction member and increase the service life of the traction member.

[0033] In some embodiments, the support portion includes a support foot and a limiting foot provided on one side of the support foot along a first direction; along a direction away from the support platform, an end of the limiting foot protrudes from an end of the support foot.

[0034] By adopting the above technical solution, the support part can not only support the part to be fixed, but also limit the maintenance tool in the first direction, preventing the maintenance tool from sliding too far in the first direction and leaving the part to be fixed.

[0035] In some embodiments, the support legs are detachably connected to the support platform, and the position of the support legs on the support platform is adjustable; and / or

[0036] The limiting foot is detachably connected to the supporting platform, and the position of the limiting foot on the supporting platform is adjustable.

[0037] By adopting the above technical solution, the maintenance tool can easily remove the support legs and / or limit legs to facilitate adjustment of their positions. The maintenance tool can also replace the support legs or limit legs with different heights according to usage requirements, and the height of the support legs can be adjusted to avoid obstacles on the part to be fixed. Therefore, the maintenance tool can be adapted to different usage scenarios, improving its versatility.

[0038] In some embodiments, the support portion includes two support feet spaced apart along a second direction, the second direction intersects with the first direction, and the support feet extend along a vertical direction; the support portion also includes a support beam connected between the two support feet, and the support beam extends along the second direction; the end surface of the support beam facing away from the support platform is flush with the end surface of the support foot facing away from the support platform.

[0039] By adopting the above technical solution, both the support beam and the support legs are used to support the part to be fixed, thereby increasing the contact area between the maintenance tool and the part to be fixed, thereby improving the installation stability of the maintenance tool.

[0040] In some embodiments, the limiting foot and the limiting assembly are both disposed on the inner side of the supporting foot.

[0041] By adopting the above technical solution, the two limiting feet respectively limit the movement of the maintenance tool along the first direction, and the limiting pin also limits the movement of the maintenance tool along the first direction.

[0042] In some embodiments, the support platform includes a fixing frame and a support plate provided on the fixing frame; the fixing frame includes a plurality of beams and fixing members, and adjacent beams are fixedly connected via the fixing members.

[0043] By adopting the above technical solution, the structure of the supporting platform is simple and easy to assemble.

[0044] In some embodiments, one or more of the fixing frame, the support plate, the support legs, and the limiting legs are made of hollow aluminum alloy profiles.

[0045] By adopting the above technical solution, the maintenance tooling has good structural strength and is light in weight, making it convenient for one person to carry.

[0046] An embodiment of the second aspect of the present application proposes a maintenance tool assembly, comprising a plurality of maintenance tools as described in the first aspect, wherein the plurality of maintenance tools are arranged in parallel.

[0047] The maintenance tool assembly provided in the embodiment of the present application can be assembled into multiple maintenance tools according to usage needs to adapt to operating spaces of different widths.

[0048] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or conventional technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0050] FIG1 is a perspective schematic diagram of a maintenance tool provided in one embodiment of the present application;

[0051] FIG2 is a partial enlarged schematic diagram of section A of the maintenance tool shown in FIG1 ;

[0052] FIG3 is a partial enlarged schematic diagram of part B of the maintenance tool shown in FIG2 ;

[0053] FIG4 is a perspective schematic diagram of the limit assembly in the maintenance tool shown in FIG1 ;

[0054] FIG5 is a perspective schematic diagram of the limit assembly shown in FIG4 in another state;

[0055] FIG6 is a perspective schematic diagram of the maintenance tool shown in FIG1 from another angle;

[0056] FIG7 is a partial enlarged schematic diagram of section C of the maintenance tool shown in FIG6;

[0057] FIG8 is a partial enlarged schematic diagram of portion D of the maintenance tool shown in FIG6;

[0058] FIG9 is a perspective schematic diagram of the steering member in the maintenance tool shown in FIG6;

[0059] FIG10 is a perspective schematic diagram of the tool body of the maintenance tool shown in FIG1 ;

[0060] FIG11 is a partial enlarged schematic diagram of portion E of the tooling body shown in FIG10 ;

[0061] FIG12 is a schematic diagram of a maintenance tool provided in some embodiments of the present application in use;

[0062] FIG13 is a partial enlarged schematic diagram of portion F in FIG12;

[0063] FIG14 is a schematic diagram of a maintenance tool provided in other embodiments of the present application in use;

[0064] FIG15 is a partial enlarged schematic diagram of portion G in FIG14;

[0065] FIG16 is a schematic diagram of a maintenance tool provided in some other embodiments of the present application in use;

[0066] FIG17 is a partially enlarged schematic diagram of portion H in FIG16 .

[0067] The meanings of the marks in the figure are:

[0068] 100, maintenance tool; 10, tool body; 11, support platform; 111, fixed frame; 1111, beam; 1112, reinforcement beam; 1113, 1. fixing member; 112. support plate; 12. support portion; 121. support foot; 122. limiting foot; 123. support beam; 20. limiting assembly; 21. limiting pin; 211. head; 2111. fixing hole; 212. rod; 213. stopper; 22. elastic member; 23. traction member; 24. limiting bracket; 241. guide hole; 25. orientation member; 251. fixing portion; 252. orientation portion; 2521. positioning hole; 30. guide assembly; 31. central member; 32. handle; 33. steering member; 33a. first steering member; 33b. second steering member; 331. base; 332. pin shaft; 333. open retaining ring; 200. valve tower; 210. crossbeam; 2101. connecting hole; X, first direction; Y, second direction; Z, third direction. Modes for Carrying Out the Invention

[0069] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0070] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0071] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0072] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0073] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0074] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0075] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0076] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0077] Currently, high-tower operations are in demand in fields such as power generation and construction. When operators perform these tasks, they need to secure maintenance tooling to the tower, using the tooling to support the operator. Traditional maintenance tooling often uses an electric lift platform, which consists of a drive mechanism, a sliding frame, and a lifting platform. The drive mechanism drives the lifting platform up and down on the sliding frame. However, this type of maintenance tooling is complex and bulky, making it difficult to carry, install, and disassemble.

[0078] In view of this, the present application provides a maintenance tool, including a tool body and a limit assembly, the tool body including a support platform, the support platform having a support part; the limit assembly includes a limit pin, an elastic member and a traction member, the limit pin is movably connected to the tool body along a first direction, the traction member is connected to the limit pin, the elastic member is arranged along the first direction and the elastic member is held between the limit pin and the tool body, so that the support platform can be supported on the part to be fixed by the support part, the limit pin can move back and forth to connect to or away from the part to be fixed, the traction member is used to drive the limit pin to move, and the elastic member can apply elastic force to the limit pin so that the limit pin can be stably connected to the part to be fixed. The maintenance tool provided in the embodiment of the present application utilizes the support part on the support platform to conveniently support the part to be fixed and utilizes the limit pin to stably connect to the part to be fixed, thereby reducing the probability of displacement and shaking of the maintenance tool; the maintenance tool utilizes the elastic part to apply elastic force to the limit pin, thereby improving the connection stability between the limit pin and the part to be fixed, and utilizes the traction part to drive the limit pin to move, thereby improving the convenience of operation and realizing the rapid installation and disassembly of the maintenance tool; the maintenance tool has a simple structure and is easy to carry.

[0079] The maintenance tool provided in the embodiments of the present application is suitable for a variety of equipment requiring maintenance in the power, construction, and other fields, particularly equipment requiring high-altitude work. The maintenance tool utilizes a tool body and a position-limiting assembly to stably mount on the part to be fixed. This solves the problems of traditional maintenance tooling, which is complex and inconvenient to install and remove. It offers the advantages of a simple structure, easy installation and removal, a compact size, and portability.

[0080] The maintenance tooling provided in the embodiment of the present application can be used to maintain a variety of equipment. This application uses the valve tower as an example of the equipment to be maintained. The maintenance tooling has good versatility and can also be used to install and maintain equipment in various industries.

[0081] Referring to Figures 1 to 4, an embodiment of the first aspect of the present application provides a maintenance tool 100, comprising a tool body 10 and a limiting assembly 20. The tool body 10 comprises a support platform 11, on which a support portion 12 is provided. The limiting assembly 20 is disposed on the tool body 10, and comprises a limiting pin 21, an elastic member 22, and a pulling member 23. The limiting pin 21 is movably connected to the tool body 10 along a first direction, the pulling member 23 is connected to the limiting pin 21, and the elastic member 22 is disposed along the first direction and abuts between the limiting pin 21 and the tool body 10.

[0082] The tool body 10 is the main body of the maintenance tool 100. The support platform 11 can be in a frame, plate, or other form to facilitate support on the part to be fixed and to support the operator. The tool body 10 can be constructed of a hollow aluminum alloy profile, which is lightweight and easily portable by one person. The tool body 10 can also be constructed of steel, wood, or other materials. The support portion 12 is the portion of the support platform that provides support. The support portion 12 can be protruding from the support platform 11, flush with the surface of the support platform 11, or recessed into the surface of the support platform 11. Any suitable design is sufficient as long as the support portion 12 can be easily supported on the part to be fixed.

[0083] The limiting assembly 20 is provided on the tool body 10 and is capable of limiting the position of the tool body 10, preventing the tool body 10 from shifting relative to the fixed portion and failing to stably support the operator. The limiting assembly 20 can be one or more. When there are multiple limiting assemblies 20, the multiple limiting assemblies 20 work together to limit the position of the tool body 10.

[0084] The limiting pin 21 can be cylindrical, square, hexagonal or other shapes. The limiting pin 21 can move back and forth relative to the tool body 10 along the first direction.

[0085] When in use, the tooling body 10 is used to support the portion to be fixed, and the limit pin 21 is used to move toward the portion to be fixed to connect with the portion to be fixed, or away from the portion to be fixed to separate from the portion to be fixed. The portion to be fixed is the part of the equipment to be maintained that is used to fix the maintenance tool 100. Referring to Figures 12 and 14, taking the equipment to be maintained as a valve tower 200 as an example, the portion to be fixed can be the beam 210 in the valve tower 200, and the tooling body 10 is supported on two portions to be fixed, that is, the tooling body 10 is supported on two beams 210. In other embodiments, the portion to be fixed can also be a support platform or other structure capable of supporting the tooling body 10.

[0086] The stop pin 21 can be moved toward the portion to be fixed to connect with it, thereby fixing the maintenance tool 100 to the portion to be fixed. The stop pin 21 can be connected to the portion to be fixed in a variety of ways. For example, the stop pin 21 can be abutted against the surface of the portion to be fixed to be fixedly connected to it. The stop pin 21 can also be clamped to the portion to be fixed, such as a connection hole or clamping flange on the portion to be fixed. The stop pin 21 can also be moved away from the portion to be fixed to facilitate detachment of the maintenance tool 100 from the portion to be fixed.

[0087] The limit pin 21 can reciprocate in the horizontal direction and also in the vertical direction. In this embodiment, the limit pin 21 can reciprocate along the extension direction (first direction X) of the tooling body 10, the first direction X is the horizontal direction, and the third direction Z is the vertical direction.

[0088] The traction member 23 is connected to the limit pin 21 and is used to drive the limit pin 21 to move. Specifically, when the traction member 23 is pulled by force, the traction member 23 drives the limit pin 21 to move in a direction away from the part to be fixed, causing the limit pin 21 to compress the elastic member 22. At this time, the limit pin 21 does not have a limiting effect and can be moved out of position, so that the maintenance tool 100 can be placed on or removed from the equipment to be maintained; when the traction member 23 is not under force, the elastic member 22 recovers its elastic deformation and provides elastic force to the limit pin 21, so that the limit pin 21 can move toward the part to be fixed until the limit pin 21 tightly abuts against the part to be fixed. At this time, the maintenance tool 100 can be stably connected to the part to be fixed.

[0089] In some embodiments, the traction member 23 is a rope. In other embodiments, the traction member can also be a chain, a cylinder, or the like, as long as it can drive the limit pin 21 to move. Since maintenance operations are usually performed at height, by providing a traction member 23 connected to the limit pin 21, the limit pin 21 can be driven to move by the traction member 23, thereby improving the convenience of operation, enabling rapid installation and removal of the maintenance tool 100, and solving the problem of difficult installation and removal of traditional maintenance tools.

[0090] The elastic member 22 is held between the limiting pin 21 and the tool body 10 . The elastic member 22 is arranged along the moving direction of the limiting pin 21 . The elastic member 22 is used to provide an elastic force to move the limiting pin 21 toward the portion to be fixed.

[0091] The elastic member 22 can be a spring, elastic foam, or other elastic element. The elastic member 22 abuts against the stop pin 21, providing elastic force to the stop pin 21, causing it to move toward the portion to be secured. This elastic force allows the stop pin 21 to firmly abut the portion to be secured, preventing it from retracting and improving the stability of the connection between the stop pin 21 and the portion to be secured.

[0092] During use, the stop pin 21 can be driven by the traction member 23 to move away from the part to be fixed, so that the stop pin 21 can avoid the position when the maintenance tool 100 is installed. The stop pin 21 can also be moved toward the part to be fixed under the elastic force of the elastic member 22 to connect to the part to be fixed. Moreover, the stop pin 21 can also be driven by the traction member 23 to move away from the part to be fixed to separate from the part to be fixed. In this way, the maintenance tool 100 can be conveniently supported on the part to be fixed using the tool body 10 and stably connected to the part to be fixed using the stop pin 21, reducing the possibility of displacement and shaking of the maintenance tool 100. When the maintenance work is completed, the stop pin 21 is moved away from the part to be fixed, releasing the lock of the stop pin 21 on the part to be fixed, and the maintenance tool 100 can be detached from the part to be fixed.

[0093] The maintenance tool 100 provided in the embodiment of the present application includes a tool body 10 and a limiting assembly 20. The limiting assembly 20 includes a limiting pin 21, an elastic member 22, and a pulling member 23. The limiting pin 21 is used to connect to the part to be fixed. The limiting pin 21 is movably connected to the tool body 10 along a first direction. The pulling member 23 is connected to the limiting pin 21, so that the limiting pin 21 can move relative to the tool body 10 under the drive of the pulling member 23. The elastic member 22 is arranged along the first direction and abuts against the limiting pin 21, so that the elastic member 23 can apply an elastic force to the limiting pin 21. In this way, when in use, the limiting pin 21 can be moved away from the part to be fixed under the drive of the pulling member 23, so that the limiting pin 21 can avoid the position when the maintenance tool is installed. The limiting pin 21 can also move toward the part to be fixed under the elastic force of the elastic member 22 to connect to the part to be fixed. Moreover, the limiting pin 21 can also be moved away from the part to be fixed under the drive of the pulling member 23 to separate from the part to be fixed. The maintenance tool 100 can be conveniently supported on the part to be fixed using the tool body 10 and stably connected to the part to be fixed using the limit pin 21, reducing the probability of displacement and shaking of the maintenance tool 100. The maintenance tool 100 can also carry an operator, making it easier for the operator to maintain the equipment. The maintenance tool 100 uses an elastic member 22 to apply elastic force to the limit pin 21, improving the stability of the connection between the limit pin 21 and the part to be fixed. The traction member 23 drives the limit pin 21 to move, improving operational convenience and enabling rapid installation and removal of the maintenance tool 100.

[0094] The maintenance tool 100 provided in the embodiment of the present application is adaptable to various equipment to be maintained, such as valve towers. The maintenance tool 100 can be stably installed on the part to be fixed using the tool body 10 and the limit assembly 20, solving the problem of traditional maintenance tool structures being complex and inconvenient to install and disassemble. It has the advantages of simple structure, small size, easy portability, and convenient installation and disassembly. Compared with traditional support plates, the limit pins 21 in the above-mentioned maintenance tool 100 improve the installation stability of the maintenance tool; compared with traditional hanging baskets, the above-mentioned maintenance tool 100 can adapt to various installation environments, is less restricted by the environment, and can be installed in small and complex environments.

[0095] 2 to 5 , the limit assembly 20 further includes a limit bracket 24 fixed to the support platform 11 , and a guide hole 241 is defined on the limit bracket 24 ; the limit pin 21 is movably inserted into the guide hole 241 , and the elastic member 22 is supported between the limit pin 21 and the limit bracket 24 .

[0096] The limiting bracket 24 is used to mount the limiting pin 21. The guide hole 241 on the limiting bracket 24 is a through hole, and the limiting pin 21 is movably inserted into the guide hole 241. The guide hole 241 can guide the movement of the limiting pin 21. The limiting bracket 24 can be connected to the support portion 12 or the support platform 11. The limiting bracket 24 can have various shapes, for example, a flat plate, an L shape, a U shape, etc.

[0097] By adopting the above technical solution, the maintenance tool 100 can use the limiting bracket 24 to install the limiting pin 21, which facilitates the movement of the limiting pin 21 on the tool body 10.

[0098] The limit pin 21 includes a head 211 and a rod 212 connected to each other, and a stopper 213 fixed on the rod 212. The rod 212 is movably inserted into the guide hole 241. The head 211 and the stopper 213 are respectively arranged on opposite sides of the guide hole 241 along the first direction. The traction member 23 is fixed to the head 211. The elastic member 22 is sleeved on the rod 212 and the two ends of the elastic member 22 are respectively in contact with the limit bracket 24 and the stopper 213.

[0099] Specifically, the head 211 and the stopper 213 are respectively located on opposite sides of the guide hole 241 , so that the limiting pin 21 can move on the limiting bracket 24 without falling off.

[0100] The head portion 211 is provided with a fixing hole 2111 for receiving and securing the pulling member 23. One end of the pulling member 23 passes through the fixing hole 2111 and is secured therein, thereby enabling the limiting pin 21 to be pulled by the pulling member 23. Optionally, the head portion 211 is larger than the rod portion 212 and the guide hole 241. Thus, the head portion 211 can abut against the limiting bracket 24, preventing the limiting pin 21 from being pulled away from the limiting bracket 24 by the pulling member 23. In other embodiments, a stopper 213 can also be provided on the side of the rod portion 212 near the head portion 211 to similarly prevent the limiting pin 21 from being pulled away from the guide hole 241.

[0101] In some embodiments, the head 211 and the rod 212 are an integrally formed structure, and the stopper 213 is an annular retaining ring fixedly mounted on the rod 212. In other embodiments, the head 211 and the rod 212 can be detachably connected, and the stopper 213 can also be a stop flange protruding from the rod 212 or other element capable of stopping the elastic member 22.

[0102] The elastic member 22 is sleeved on the rod portion 212 and located between the limiting bracket 24 and the stopper 213 . Thus, the elastic member 22 elastically abuts against the stopper 213 to apply elastic force to the limiting pin 21 through the stopper 213 .

[0103] By adopting the above-mentioned technical solution, the limit assembly 20 includes a limit bracket 24, a traction member 23, a limit pin 21 and an elastic member 22. The limit pin 21 can move back and forth on the limit bracket 24 under the action of the traction member 23 and the elastic member 22, so that the limit pin 21 can limit the maintenance tool 100; the control method of the limit pin 21 is simple and convenient, easy to operate, which improves the convenience of installation and disassembly and can adapt to the requirements of high-altitude operations.

[0104] Please refer to Figures 1 to 7. In some embodiments, the support portion 12 and the limit pin 21 are arranged on the same side of the support platform 11. The limit pin 21 can move along the first direction X. The limit pin 21 and the support portion 12 can jointly limit the movement of the support platform 11 in the first direction X.

[0105] The support portion 12 and the limit pin 21 are arranged on the same side of the support platform 11 in the vertical direction. The limit pin 21 can move back and forth along the first direction X to connect the part to be fixed, so that the limit pin 21 can limit the support platform 11 in the first direction X; the support portion 12 can support the part to be fixed along the first direction X, so that the support portion 12 can also limit the support platform 11 in the first direction X; wherein, the limit pin 21 and the support portion 12 jointly limit the support platform 11 from moving in opposite directions in the first direction X.

[0106] Taking the perspective shown in FIG. 1 as an example, in some embodiments, the support portion 12 is located on the left side of the tool body 10, and the limit pin 21 is located on the right side of the tool body 10. The support portion 12 can abut the portion to be fixed to limit movement of the maintenance tool 100 to the left; the limit pin 21 can abut the portion to be fixed to limit movement of the maintenance tool 100 to the right. Thus, the support portion 12 and the limit pin 21 jointly limit the range of movement of the maintenance tool 100 along the first direction X. It is understood that the support portion 12 and the limit pin 21 can also be located at the same end of the tool body 10 along the first direction X, as long as they can limit movement of the support platform 11 in opposite directions. For example, the limit pin 21 is located on the left side of the beam 210, and the support portion 12 is located on the right side of the beam 210. The limit pin 21 abuts the beam 210 to limit movement of the maintenance tool 100 to the right relative to the beam 210, and the support portion 12 abuts the beam 210 to limit movement of the maintenance tool 100 to the left relative to the beam 210.

[0107] By adopting the above technical solution, the support portion 12 and the limit pin 21 can limit the movement of the support platform 11 in the first direction X, thereby reducing the probability of the support platform 11 falling off from the part to be fixed and improving the installation stability of the maintenance tool 100.

[0108] In some embodiments, referring to FIG. 6 and FIG. 7 , the support platform 11 is provided with two support portions 12 , and the two support portions 12 are respectively provided at opposite ends of the support platform 11 along the first direction X.

[0109] The first direction X is the longitudinal direction of the support platform 11. The two support portions 12 are provided on the same vertical side of the support platform 11 and at opposite ends of the support platform 11 along the first direction X. The two support portions 12 jointly support the support platform 11. The support portions 12 are detachably connected to the support platform 11 to facilitate manufacturing and assembly; the support portions 12 can also be integrally connected to the support platform 11.

[0110] 6 , 7 , and 10 to 15 , the two support portions 12 are respectively supported on the tops of the two parts to be fixed and abut against the sides of the parts to be fixed along the first direction X. In this way, the two support portions 12 can restrict the support platform 11 from moving in the first direction X. It is understood that the support portions 12 may also only abut against the sides of the parts to be fixed along the first direction X.

[0111] During use, the two support parts 12 can respectively abut against the side of the part to be fixed to limit the support platform 11 from moving forward and backward along the first direction X; move the limit pin 21 toward the part to be fixed so that the limit pin 21 is connected to the part to be fixed, and the maintenance tool 100 can be fixed on the part to be fixed.

[0112] By setting two support parts 12, the two support parts 12 can jointly limit the support platform 11 from moving in opposite directions, playing a role of rough positioning; the limit pin 21 can be movably connected to the tooling body 10, playing a role of fine positioning; in this way, the maintenance tooling 100 can be limited by the two support parts 12 and the limit pin 21 at the same time, and has better stability.

[0113] 1 and 6 to 8 , in some embodiments, the maintenance tool 100 includes a plurality of position-limiting components 20 , which are respectively disposed at opposite ends of the tool body 10 along the first direction X.

[0114] Optionally, the limiting assemblies 20 are all located on the inner side of the support portion 12, and the limiting pins 21 can move toward the outer side of the maintenance tool 100 to connect to the part to be fixed. The limiting pins 21 located at both ends of the support platform 11 have opposite movement directions. In this way, multiple limiting assemblies 20 can jointly limit the movement of the support platform 11 in opposite directions.

[0115] In some embodiments, the number of the limiting components 20 is four, and a limiting component 20 is provided at each of the four corners of the support platform 11; it can be understood that the number of the limiting components 20 can also be two, three, six, eight, etc.

[0116] By adopting the above-mentioned technical solution, the limit pins 21 at both ends of the support platform 11 can limit the movement of the support platform 11 in opposite directions, further improving the installation stability of the maintenance tooling 100 and reducing the probability of the maintenance tooling 100 moving and falling off; multiple limit pins 21 provide multiple fixed points for the maintenance tooling 100, which can reduce the probability of the maintenance tooling 100 flipping or shifting.

[0117] Because the maintenance tool 100 includes multiple limiter assemblies 20, this embodiment of the present application also includes a guide assembly 30 to facilitate operation of the pull members 23 within the multiple limiter assemblies 20. Referring to Figures 6 to 8 , the guide assembly 30 includes a centralizing member 31 secured to the tool body 10. The centralizing member 31 defines a centralizing hole 311. The pull members 23 extend from the ends of corresponding limiter pins 21 and pass through the centralizing holes 311.

[0118] Optionally, the centralizing member 31 is fixed to the middle of the support platform 11. It is understood that the centralizing member 31 may also be provided at one end of the support platform 11. A centralizing hole 311 is provided in the centralizing member 31, through which the plurality of traction members 23 pass. This allows the ends of the plurality of traction members 23 to be brought together, making it easier for the user to pull the traction members 23.

[0119] By adopting the above technical solution, the concentrating piece 31 can integrate the traction pieces 23 in multiple limit assemblies 20 into a bundle, so as to facilitate the user to pull the traction pieces 23; the user only needs one operation to simultaneously pull the traction pieces 23 in multiple limit assemblies 20, thereby moving multiple limit pins 21 at the same time, thereby improving the convenience of operation, realizing single-person operation, and reducing labor costs.

[0120] 1 to 6 , in some embodiments, the guide assembly 30 further includes a handle 32 , and one end of the traction member 23 extending from the central member 31 is connected to the handle 32 . The handle 32 can be forced to move downward to simultaneously drive multiple traction members 23 to move.

[0121] Specifically, the handle 32 is provided with a rope threading hole. The pulling member 23 is passed through the central hole 311 and then tied to the rope threading hole of the handle 32, thereby achieving a fixed connection between the pulling member 23 and the handle 32. In this way, the operator can grasp the handle 32 and move it downward, thereby simultaneously driving the multiple pulling members 23 to move. The pulling members 23 drive the limiting pin 21 to move and compress the elastic member 22. The operator can then release the handle 32, and the elastic member 22 provides elastic force to the limiting member, pushing the limiting pin 21 toward the portion to be fixed.

[0122] By adopting the above technical solution and providing the handle 32 and the central member 31 , the user can conveniently pull the multiple traction members 23 , thereby improving the operational convenience of the maintenance tool 100 and achieving rapid installation of the maintenance tool 100 .

[0123] In some embodiments, the guide assembly 30 further includes a steering member 33 fixedly connected to the tooling body. The steering member 33 is disposed between the central member 31 and the limiting assembly 20 . The steering member 33 is used to redirect the traction member 23 .

[0124] Since the plurality of limit pins 21 are provided in different directions of the support platform 11 and the plurality of traction members 23 need to be concentrated on the concentration member 31 , the embodiment of the present application provides a steering member 33 for steering the traction members 23 .

[0125] Specifically, the steering member 33 is fixedly connected to the supporting platform 11 , and the steering member 33 is disposed between the centralizing member 31 and the limiting assembly 20 . The traction member 23 changes its extension direction after passing through the steering member 33 .

[0126] By adopting the above technical solution, the steering member 33 can steering the traction member 23, so that the traction members 23 in multiple directions can be extended to the central member 31 for bundling, and the maintenance tool 100 can concentrate the pulling force of the traction members 23 in multiple directions on one point for control, which greatly reduces the installation difficulty and installation time, and realizes the rapid installation of the maintenance tool 100.

[0127] In some embodiments, the steering member 33 includes a base 331 fixed on the tooling body and a pin 332 provided on the base 331. The pin 332 is spaced apart from the surface of the base 331 to form a rope threading gap. The traction member 23 abuts against the pin 332 to make the traction member 23 turn.

[0128] The pulling member 23 extends from the end of the limiting pin 21 to the deflection member 33 , and the pulling member 23 passes through the rope threading gap to change the extending direction.

[0129] Specifically, the base 331 is fixed on the supporting platform 11 , both ends of the pin 332 are connected to the base 331 , and the outer peripheral surface of the pin 332 is circular to reduce the friction on the traction member 23 ; the pin 332 can be fixed on the base 331 or rotatably arranged on the base 331 .

[0130] Optionally, the base 331 includes a base body and two mounting parts provided on one side of the base body, the two ends of the pin shaft 332 are respectively connected to the two mounting parts, the pin shaft 332 is spaced apart from the surface of the base body and forms a rope threading gap; the end of the pin shaft 332 is covered with an open retaining ring 333, and the open retaining ring 333 can stop the pin shaft 332 to prevent the pin shaft 332 from falling off the base 331.

[0131] By providing the steering member 33 , the steering member 33 can guide the extension direction of the traction member 23 , so that the traction member 23 extends from the limiting pin 21 to the concentrating member 31 for clustering.

[0132] In some embodiments, the height of the limit pin 21 on the tooling body 10 is lower than the height of the concentrating member 31 on the tooling body 10; the guide assembly 30 includes a plurality of steering members 33, and the plurality of steering members 33 include a first steering member 33a and a second steering member 33b. The pin shaft 332 of the first steering member 33a is horizontally arranged, and each traction member 23 extends from the limit pin 21 and passes through the first steering member 33a to change the height of the traction member 23; the pin shaft 332 of the second steering member 33b is vertically arranged, and several traction members 23 extend from the limit pin 21 and pass through the second steering member 33b to change the extension direction of the traction member 23, so that the traction member 23 extends toward the concentrating member 31.

[0133] The concentrating piece 31 and the steering piece 33 are both fixed to the support platform 11, and the limit pin 21 is spaced apart from the support platform 11 in the vertical direction to facilitate the limit pin 21 to connect to the part to be fixed; on the one hand, the heights of the concentrating piece 31 and the limit pin 21 in the vertical direction are not equal; on the other hand, multiple limit pins 21 are respectively arranged in different directions of the concentrating piece 31, so it is necessary to use multiple steering pieces 33 to steer the traction piece 23 so that multiple traction pieces 23 can be concentrated on the concentrating piece 31.

[0134] Specifically, the multiple steering members 33 include a first steering member 33a and a second steering member 33b. The pin shaft 332 of the first steering member 33a is set horizontally. After the traction member 23 passes through the first steering member 33a from the limit pin 21, the distance between the traction member 23 and the support platform 11 becomes smaller; the pin shaft 332 of the second steering member 33b is set vertically. After the traction member 23 passes through the second steering member 33b, the extension direction of the traction member 23 in the horizontal plane is changed, which depends on the position of the second steering member 33b. Optionally, the angle range of the traction member 23 turned by the second steering member 33b can be 0-360 degrees. For example, the second steering member 33b turns the traction member 23 90 degrees. It can be understood that the second steering member 33b can also turn the traction member 23 more than 360 degrees. As shown in Figure 8, in some embodiments, the second steering member 33b is arranged in the middle of the tooling body and is arranged opposite to the concentrating member 31 along the second direction Y. The second steering member 33b can redirect the extension direction of the traction member 23 to the direction of the concentrating member 31.

[0135] In some embodiments, the centralizing member 31 is positioned in the middle of the support platform 11 along the first direction X and on a side of the support platform 11 along the second direction Y. Four limiting assemblies 20 are provided, one at each of the four corners of the support platform 11. Two limiting assemblies 20 are located at the same end as the centralizing member 31, with their pulling members 23 extending through a first deflection member 33a to the centralizing member 31. The other two limiting assemblies 20 are located on different sides of the centralizing member 31, with their pulling members 23 extending through a first deflection member 33a and a second deflection member 33b to the centralizing member 31. It will be appreciated that the number and position of the first deflection members 33a and the second deflection member 33b can be adjusted as needed, as long as the pulling member 23 can be guided from the limiting pin 21 to the centralizing member 31. The centralizing member 31 can also be positioned in the middle of the support platform 11 along the second direction Y, and is not limited to being positioned on a side of the support platform 11 along the second direction Y.

[0136] By adopting the above technical solution, the maintenance tool 100 uses multiple steering parts 33 to flexibly adjust the steering of the traction part 23, so that the multiple traction parts 23 can be concentrated on the central part 31, thereby concentrating the pulling force in multiple directions at one point, thereby realizing the rapid installation of the maintenance tool 100.

[0137] In some embodiments, the limiting assembly 20 also includes a directional member 25 fixed to the tooling body 10, and a positioning hole 2521 is provided on the directional member 25. The positioning hole 2521 is a circular hole opposite to and coaxially arranged with the limiting pin 21 to enable the limiting pin 21 to move in the horizontal direction.

[0138] The orienting member 25 is fixedly connected to the tooling body 10. In this embodiment, the traction member 23 positioning member is fixed to the limiting bracket 24 to facilitate alignment of the traction member 23 positioning member and the limiting bracket 24. In other embodiments, the orienting member 25 can also be directly fixed to the tooling body 10.

[0139] The orienting member 25 is provided with a positioning hole 2521, which is coaxial with the stop pin 21. That is, the central axis of the positioning hole 2521 and the central axis of the stop pin 21 are aligned, or at the same height. This allows one end of the pulling member 23 to pass through the positioning hole 2521 and connect to the stop pin 21, allowing the stop pin 21 to move horizontally under the pull member 23's influence. The other end of the pulling member 23 can extend along the tool body 10 and then vertically downward, facilitating manual operation.

[0140] By adopting the above technical solution, the orienting member 25 plays a orienting role, so that the traction member 23 can drive the limit pin 21 to move horizontally, which is conducive to smoothly pulling the limit pin 21 and preventing the limit pin 21 from being stuck in the positioning hole 2521 or stuck on the part to be fixed.

[0141] In some embodiments, the orienting member 25 can deflect the traction member 23 , and the inner wall surface of the positioning hole 2521 away from the hole of the limiting pin 21 is an arc surface or a chamfered surface.

[0142] The orienting member 25 can also redirect the traction member 23. The traction member 23 extends from the end of the limit pin 21 and passes through the positioning hole 2521. The traction member 23 can fit the curved surface or chamfered surface of the hole, and then turn and extend toward the central member 31. In some embodiments, the positioning hole 2521 runs through both ends of the orienting member 25. The orienting member 25 can redirect the traction member 23 at a steering angle of no more than 90 degrees. The inner wall surface of the positioning hole 2521 facing away from the hole of the limit pin 21 is a curved surface or a chamfered surface, which can cause the aperture of one end of the positioning hole 2521 to gradually increase in the direction away from the limit pin 21. In addition, by providing the curved surface or chamfered surface, the wear on the traction member 23 can be reduced.

[0143] By adopting the above technical solution, the positioning hole 2521 can make the traction member 23 turn, and the inner wall surface of the hole is an arc surface or a chamfered surface, which can reduce the wear of the traction member 23 and improve the service life of the traction member 23.

[0144] As shown in Figure 4, in some embodiments, the orienting member 25 includes a bent fixed portion 251 and an orienting portion 252, the fixed portion 251 is fixedly connected to the limiting bracket 24, the orienting portion 252 is opposite to the limiting bracket 24 and is spaced apart, and the head 211 of the limiting pin 21 moves between the orienting portion 252 and the limiting bracket 24.

[0145] The fixing portion 251 is connected to the side of the position-limiting bracket 24 facing away from the support platform 11. The orienting portion 252 is connected to the fixing portion perpendicularly or at another angle. By fixing the orienting member 25 to the position-limiting bracket 24, alignment between the orienting member 25 and the position-limiting bracket 24 is facilitated. It is understood that the orienting member 25 is also fixedly connected to the support platform 11 or the support portion 12.

[0146] 1 and 7 , in some embodiments, the tool body 10 includes a support platform 11 and two support portions 12 . The two support portions 12 are respectively disposed at opposite ends of the support platform 11 along the first direction X.

[0147] The support portion 12 includes a support leg 121 and a limiting leg 122 provided on one side of the support leg 121 along the first direction X; along the direction away from the support platform 11 , the end of the limiting leg 122 protrudes from the end of the support leg 121 .

[0148] Both the support leg 121 and the limiting leg 122 can be strip-shaped members, and can be made of hollow aluminum alloy to reduce weight. Limiting leg 122. Referring to Figures 12 and 13, during use, the support leg 121 is used to support the upper portion of the portion to be secured. The limiting leg 122 is provided on one side of the portion to be secured to limit the position of the maintenance tool 100, preventing the maintenance tool 100 from sliding off the portion to be secured. Optionally, the limiting leg 122 can abut against the side of the portion to be secured.

[0149] The supporting foot 121 and the limiting foot 122 are arranged adjacent to each other, and the ends of the two are stepped, so that the supporting part 12 can not only support the part to be fixed, but also limit the maintenance tool 100 in the first direction X, thereby preventing the maintenance tool 100 from sliding too far along the first direction X and separating from the part to be fixed.

[0150] It is understood that the support leg 121 and the limiting leg 122 fit together. In other embodiments, there may also be a certain gap between the support leg 121 and the limiting leg 122. Optionally, the limiting bracket 24 is fixed to the limiting leg 122.

[0151] In some embodiments, the support foot 121 is detachably connected to the support platform 11, and the position of the support foot 121 on the support platform 11 is adjustable; and / or the limit foot 122 is detachably connected to the support platform 11, and the position of the limit foot 122 on the support platform 11 is adjustable.

[0152] Because the tooling body 10 is provided with stopper assemblies 20 at opposite ends, two sets of stopper assemblies 20 can each connect to the two parts to be fixed. When the distance between the two parts to be fixed changes, the support legs 121 and stopper legs 122 are removed and reinstalled to adjust the distance between the two support parts 12. For example, if the equipment to be maintained is a valve tower, by adjusting the distance between the two support parts 12, it can adapt to different spans of inter-tower beams and intra-tower beams.

[0153] The supporting legs 121 and the limiting legs 122 can be connected to the supporting platform 11 via triangular fixing members 1113 for easy assembly. In other embodiments, the fixing members can also be screws or other fasteners.

[0154] By adopting the above technical solution, the maintenance tool 100 can easily remove the support legs 121 and the limiting legs 122 to adjust their positions, thereby adjusting the distance between the two support parts 12. The maintenance tool 100 can also replace the support legs 121 or the limiting legs 122 with different heights according to usage requirements, and can also avoid obstacles on the part to be fixed by adjusting the height of the support legs 121. Therefore, the maintenance tool 100 can adapt to different usage scenarios, improving its versatility.

[0155] As shown in Figures 6 and 7, in some embodiments, the support portion 12 includes two support feet 121 spaced apart along the second direction Y, the second direction Y intersects with the first direction X, and the support feet 121 extend along the vertical direction; the support portion 12 also includes a support beam 123 connected between the two support feet 121, and the support beam 123 extends along the second direction Y; the end surface of the support beam 123 facing away from the support platform 11 is flush with the end surface of the support foot 121 facing away from the support platform 11.

[0156] The second direction Y may be the width direction of the maintenance tool 100. Optionally, the support portion 12 includes two spaced support legs 121, two spaced limiting legs 122, and at least one support beam 123, with each limiting leg 122 positioned adjacent to a support leg 121. Referring to Figures 12 to 15, the support beams 123 and the support legs 121 are aligned with the end faces facing away from the support platform 11. Thus, both the support beams 123 and the support legs 121 are supported on the portion to be secured, thereby increasing the contact area between the maintenance tool 100 and the portion to be secured, thereby improving the installation stability of the maintenance tool 100.

[0157] In some embodiments, the limit foot 122 and the limit assembly 20 are both arranged on the inner side of the support foot 121, that is, the limit foot 122 and the limit assembly 20 are both arranged on the side of the support foot 121 close to the middle of the support platform 11. In this way, the two limit feet 122 respectively limit the movement of the maintenance tooling 100 along the first direction X, and the limit pin 21 also limits the movement of the maintenance tooling 100 along the first direction X.

[0158] In other embodiments, the limiting foot 122 and / or the limiting assembly 20 may also be disposed on the outside of the supporting foot 121 .

[0159] Optionally, the limiting assembly 20 is installed on the limiting foot 122 . It is understandable that the limiting assembly 20 can also be installed below the supporting platform 11 .

[0160] 1 and 10 , in some embodiments, the support platform 11 includes a fixing frame 111 and a support plate 112 disposed on the fixing frame 111 .

[0161] The fixing frame 111 includes multiple beams 1111 and fixing members 1113. Adjacent beams 1111 are fixedly connected by fixing members 1113. The multiple beams 1111 are connected end to end to form a frame structure. The support portion 12 is connected to the beams 1111. The fixing members 1113 can be triangular connecting members. This simplifies the assembly of the fixing frame 111 and facilitates modification.

[0162] The fixing frame 111 may also include a plurality of reinforcing beams 1112, which are disposed between two opposing beam bodies 1111 to enhance the structural strength of the fixing frame 111. The reinforcing beams 1112 are also connected to the beam bodies 1111 via fixing members 1113. A support plate 112 is fixedly connected to the side of the fixing frame 111 facing away from the support portion 12 and is capable of supporting maintenance personnel. The fixing frame 111 and support plate 112 may be made of aluminum alloy, which is lightweight and portable.

[0163] During assembly, multiple beams 1111 can be first fixedly connected through fixing members 1113 to form a fixing frame 111, and then the support plate can be fixed to one side of the fixing frame 111, and the support part 12 and the limiting assembly 20 can be fixed to the other side of the fixing frame 111.

[0164] By adopting the above technical solution, the supporting platform 11 has a simple structure, is easy to assemble and is lightweight.

[0165] In some embodiments, one or more of the fixing frame 111 , the supporting plate 112 , the supporting legs 121 and the limiting legs 122 are made of a hollow aluminum alloy profile.

[0166] Specifically, the beam body 1111 and the reinforcing beam 1112 in the fixed frame 111 can be made of hollow aluminum alloy profiles; the supporting feet 121 and the limiting feet 122 can also be made of hollow aluminum alloy profiles. In this way, the maintenance tool 100 has good structural strength and is light in weight, making it easy for one person to carry.

[0167] In addition, the fixing frame 111 and / or the support portion 12 are made of a hollow aluminum alloy profile, which can also facilitate the fixed connection between the fixing frame 111 and the support portion 12 .

[0168] It is understandable that the fixing frame 111 , the supporting plate 112 , the supporting legs 121 and the limiting legs 122 may also be made of other materials, such as wood or other metal materials. Please refer to Figures 1 to 17. Some embodiments of the present application provide a maintenance tool 100, including a tool body 10 and multiple limit assemblies 20. The tool body 10 includes a support platform, and the support platform has two support parts 12 spaced apart along the first direction X. The support part 12 includes a support foot 121 and a limit foot 122. The support foot 121 is used to support the part to be fixed and the limit foot 122 can limit the maintenance tool 100 in the first direction X; the limit assembly 20 includes a limit pin 21, an elastic member 22 and a traction member 23. The elastic member 22 elastically abuts against the limit pin 21. The limit pin 21 can move in a direction away from the part to be fixed under the drive of the traction member 23 and move toward the part to be fixed under the action of the elastic force of the elastic member 22, so that the limit pin 21 can be stably connected to the part to be fixed, so that the maintenance tool 100 can be stably installed on the equipment to be maintained.

[0169] Furthermore, the maintenance tool 100 also includes a guide assembly 30, which includes a central piece 31, a handle 32 and a steering piece 33. The traction pieces 23 of multiple limit assemblies 20 extend from the limit pin 21, and after being turned by at least one steering piece 33, pass through the central piece 31 to connect to the handle 32. The handle 32 can simultaneously control the movement of multiple limit pins 21, thereby realizing single-person operation of the maintenance tool 100 and improving the installation convenience of maintenance and installation.

[0170] Taking the valve tower as an example, the maintenance tool 100 can be easily installed on the valve tower. Referring to Figures 12 and 13, the maintenance tool 100 can be installed between two valve towers 200, that is, the two supporting parts 12 of the maintenance tool 100 are respectively arranged on the adjacent beams 210 of the two valve towers 200. Referring to Figures 14 and 15, the maintenance tool 100 can be installed within the valve tower 200, that is, the two supporting parts 12 of the maintenance tool 100 are respectively arranged on two opposite beams 210 of the same valve tower 200. Referring to Figures 16 and 17, the maintenance tool 100 can be installed between two beams 210, and the beams 210 are provided with connecting holes 2101. The limiting pin 21 can move toward the beam 210 to pass through the connecting holes 2101, so that the maintenance tool 100 is stably installed on the beam 210. Among them, as shown in Figures 12 to 14, the limit pin 21 can be against the beam 210 and / or clamped on the flange on the beam 210. As shown in Figures 16 and 17, the limit pin 21 is clamped in the connecting hole 2101 of the beam 210. It can be understood that the limit pin 21 can also be connected to the beam 210 in other ways to wait for the fixing part.

[0171] The maintenance tool 100 provided in the embodiment of the present application can adapt to the use requirements of various scenarios, has a simple structure, and is easy to carry and install. The maintenance tool 100 can be lightweight, and optionally, a single tool does not exceed 25kg. Installation, disassembly and carrying can all be completed by one person, and are not restricted by environments that are inaccessible to manpower and transportation. The maintenance tool 100 includes a limit assembly 20, which can achieve rapid installation and disassembly; when there are multiple limit assemblies 20, the maintenance tool 100 has multiple fixed points after installation to prevent the maintenance tool 100 from flipping or shifting. The multiple fixed points are concentrated at one point for control by changing the direction of the force, which greatly reduces the difficulty and time of installation; the maintenance tool 100 has strong adaptability and can adapt to equipment with different spans by changing the foot spacing and height of the support feet 121 and / or the limit feet 122.

[0172] 1 to 15 , an embodiment of the second aspect of the present application provides a maintenance tool assembly, comprising a plurality of maintenance tools 100 as provided in the first aspect, wherein the plurality of maintenance tools 100 are arranged in parallel.

[0173] As shown in Figures 12 to 15 , multiple maintenance fixtures 100 are arranged side by side and can be spliced ​​together to form a support surface for maintenance personnel to step on. The maintenance fixture 100 assembly can be installed between adjacent devices or within a single device. For example, using a valve tower 200 as an example, the maintenance fixture assembly can be installed on the two beams 210 of two adjacent valve towers 200, or on the two beams 210 of a single valve tower 200.

[0174] The maintenance tool assembly provided in the embodiment of the present application can be assembled into multiple maintenance tools 100 according to usage needs to adapt to operating spaces of different widths. In addition, multiple maintenance tools 100 are arranged in sequence along the second direction Y, and the maintenance tool assembly is located within a space in the equipment along the second direction Y, so that the maintenance tool assembly is not easily shifted in the second direction Y.

[0175] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A maintenance tool, comprising: The tooling body comprises a support platform, and the support platform has a support portion; A limit assembly is arranged on the tooling body, and the limit assembly includes a limit pin, an elastic member and a traction member. The limit pin is movably connected to the tooling body along a first direction, the traction member is connected to the limit pin, and the elastic member is arranged along the first direction and is held between the limit pin and the tooling body.

2. The maintenance tool according to claim 1, wherein: The tooling body further comprises a limit bracket arranged on the support platform, and a guide hole is opened on the limit bracket; The limiting pin is movably arranged in the guide hole, and the elastic member is supported between the limiting pin and the limiting bracket.

3. The maintenance tool as claimed in claim 2, wherein: The limit pin includes a head and a rod connected to each other, and a stopper fixed on the rod, the rod is movably inserted into the guide hole, the head and the stopper are respectively arranged on opposite sides of the guide hole along the first direction, the traction member is fixed to the head, the elastic member is sleeved on the rod, and both ends of the elastic member are respectively in contact with the limit bracket and the stopper.

4. The maintenance tool according to any one of claims 1 to 3, wherein: The maintenance tool comprises a plurality of the limit assemblies, and the plurality of the limit assemblies are respectively arranged at two opposite ends of the tool body along the first direction.

5. The maintenance tool as claimed in claim 4, wherein: The maintenance tool also includes a guide assembly, which includes a centralizing piece fixed on the tool body, and a centralizing hole is provided in the centralizing piece; the traction piece extends from the end of each of the limit pins and passes through the centralizing hole.

6. The maintenance tool according to claim 5, wherein: The guide assembly further comprises a handle, and one end of the traction member passing through the central member is connected to the handle.

7. The maintenance tool according to claim 5 or 6, wherein: The guide assembly also includes a steering member fixedly connected to the tooling body, the steering member is arranged between the central member and the limiting assembly, and the traction member turns after passing through the steering member.

8. The maintenance tool according to claim 7, wherein: The steering member includes a base fixed on the support platform and a pin arranged on the base, the pin is spaced apart from the surface of the base to form a gap, the traction member abuts against the pin, and the traction member turns after passing through the gap.

9. The maintenance tool according to claim 8, wherein: The height of the limit pin on the tool body is lower than the height of the central part on the tool body; The guide assembly includes a plurality of steering members, the plurality of steering members include a first steering member and a second steering member, the pin shaft of the first steering member is horizontally arranged, and each of the traction members extends from the limit pin and passes through the first steering member; The pin shaft of the second steering member is vertically arranged, and a plurality of the traction members extend from the limiting pin and pass through the second steering member and then extend toward the concentrating member.

10. The maintenance tool according to any one of claims 1 to 9, wherein: The limiting assembly further comprises a directional member fixedly connected to the tooling body, the directional member is provided with a positioning hole, and the positioning hole is a circular hole opposite to and coaxially arranged with the limiting pin.

11. The maintenance tool according to claim 10, wherein: The inner wall surface of the positioning hole away from the hole opening of the limiting pin is an arc surface or a chamfered surface.

12. The maintenance tool according to any one of claims 1 to 11, wherein: The support platform is provided with two support parts, and the two support parts are respectively provided at two opposite ends of the support platform along the first direction.

13. The maintenance tool according to claim 12, wherein: The support portion includes a support foot and a limiting foot arranged on one side of the support foot along a first direction; along a direction away from the support platform, an end of the limiting foot protrudes from an end of the support foot.

14. The maintenance tool according to claim 12 or 13, wherein: The support foot is detachably connected to the support platform, and the position of the support foot on the support platform is adjustable; and / or The limiting foot is detachably connected to the supporting platform, and the position of the limiting foot on the supporting platform is adjustable.

15. The maintenance tool according to claim 13 or 14, wherein: The support portion includes two support feet arranged at intervals along a second direction, the second direction intersects with the first direction, and the support feet extend along a vertical direction; the support portion also includes a support beam connected between the two support feet, and the support beam extends along the second direction; the end surface of the support beam facing away from the support platform is flush with the end surface of the support foot facing away from the support platform.

16. The maintenance tool according to any one of claims 13 to 15, wherein: The limiting foot and the limiting assembly are both arranged on the inner side of the supporting foot.

17. The maintenance tool according to any one of claims 12 to 16, wherein: The support platform comprises a fixed frame and a support plate arranged on the fixed frame; The fixing frame includes a plurality of beams and fixing members, and adjacent beams are fixedly connected via the fixing members.

18. The maintenance tool according to claim 17, wherein: One or more of the fixing frame, the supporting plate, the supporting legs and the limiting legs are made of hollow aluminum alloy profiles.

19. A maintenance tool assembly, comprising a plurality of maintenance tools as claimed in any one of claims 1 to 18, wherein the plurality of maintenance tools are arranged in parallel.

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