Maintenance auxiliary device

Abstract

The invention relates to a maintenance auxiliary device. The maintenance auxiliary device comprises a supporting frame and a lifting assembly, the lifting assembly comprises a lifting part and a lifting support, the lifting support is arranged on the supporting frame in a sliding mode, and the lifting part is connected with the lifting support and used for driving the lifting support to ascend and descend relative to the supporting frame; the multiple sets of clamping units are all arranged on the lifting support and located on the same side of the supporting frame, and the multiple sets of clamping units are sequentially arranged at intervals in the lifting direction of the lifting support; and the counterweight assembly is arranged on the side, away from the clamping unit, of the supporting frame, and the counterweight assembly is used for increasing the weight of the maintenance auxiliary device. The maintenance auxiliary device provided by the invention is compact in structure and can be normally used in a narrow area; in addition, the submarine cable oil pump station pressure storage device can be stably clamped in the using process, and the using safety is improved.

Description

Technical Field

[0001] The present application relates to the technical field of equipment maintenance, and in particular to a maintenance auxiliary device. Background Art

[0002] The submarine cable oil pump station is an important part of the oil-filled submarine cable system. The pressure accumulator in the submarine cable oil pump station is installed in the submarine cable oil pump station cabinet. It is mainly used to store and provide oil pressure to maintain the stable operation of the oil pump system and ensure the stability of the oil flow and pressure balance during power transmission. As time goes by, when the pressure accumulator fails, such as being unable to store pressure or the pressure storage function does not meet the standard, the pressure accumulator needs to be lifted for maintenance, or the pressure accumulator needs to be directly moved out of the submarine cable oil pump station cabinet and replaced as a whole. However, the pressure accumulator is heavy, large in size and has a smooth surface. Manual operation is not only inefficient, but also has many safety hazards.

[0003] With the advancement of technology, handling and installation auxiliary equipment is widely used in various scenarios that require handling. Common handling and installation auxiliary equipment include cranes, handling carts, etc., which can improve handling efficiency and reduce the burden of manpower. However, general handling and installation auxiliary equipment is usually large in size, and the pressure accumulator is installed in the panel cabinet of the submarine cable oil pump station, and the working space is narrow, so general handling and installation auxiliary equipment cannot be used normally. Summary of the invention

[0004] Based on this, it is necessary to provide a maintenance auxiliary device to address the problem that the above-mentioned working space is narrow and the handling and installation auxiliary equipment cannot be used normally.

[0005] A maintenance auxiliary device, comprising:

[0006] Support frame,

[0007] A lifting assembly, comprising a lifting member and a lifting bracket, wherein the lifting bracket is slidably disposed on the support frame, and the lifting member is connected to the lifting bracket and is used to drive the lifting bracket to rise and fall relative to the support frame;

[0008] A plurality of groups of clamping units are all arranged on the lifting bracket and located on the same side of the support frame, and the plurality of groups of clamping units are sequentially spaced apart along the lifting direction of the lifting bracket; and,

[0009] A counterweight assembly is arranged on a side of the support frame away from the clamping unit, and the counterweight assembly is used to increase the weight of the maintenance auxiliary device.

[0010] In one of the embodiments, the maintenance auxiliary device further comprises a first mounting frame, which is detachably arranged on a side of the lifting bracket away from the support frame; and a plurality of groups of clamping units are arranged on a side of the first mounting frame away from the lifting bracket.

[0011] In one embodiment, the clamping unit includes two clamping members, which are arranged opposite to each other to form a clamping area located between the two clamping members; the clamping member includes a second connecting member, a clamping arm and a telescopic member, the second connecting member is arranged on the first mounting frame, one end of the clamping arm is hinged to the second connecting member, the telescopic member is arranged on the first mounting frame, and the output shaft of the telescopic member is connected to the clamping arm.

[0012] In one embodiment, the clamping arm includes a connecting portion and a clamping portion, the connecting portion has a first end and a second end that are oppositely arranged, the first end is close to the second connecting member relative to the second end, the first end is hinged to the second connecting member, and the clamping portion is connected to the second end for contacting the object to be clamped.

[0013] In one embodiment, a side of the clamping portion facing the clamping area is an arc-shaped surface.

[0014] In one of the embodiments, the clamping member further comprises a connecting bracket, and the connecting bracket is disposed on the first mounting frame; and one end of the telescopic member away from the clamping arm is detachably connected to the connecting bracket.

[0015] In one embodiment, the support frame includes a frame body and support legs, wherein the support legs are disposed at the bottom of the frame body and are located on the same side of the frame body as the plurality of clamping units.

[0016] In one embodiment, the support leg includes a support member and a support wheel, the support member is fixedly connected to the frame body, and the support wheel is detachably disposed on the support member.

[0017] In one embodiment, the counterweight assembly includes a second mounting frame, a steering support wheel, a accommodating frame and a storage box. The second mounting frame is connected to the side of the support frame facing away from the clamping unit. The accommodating frame is detachably arranged on the second mounting frame and has a accommodating cavity. The storage box is arranged in the accommodating cavity for storing the pressure carrier. The steering support wheel is arranged on the side of the second mounting frame facing away from the accommodating frame.

[0018] In one embodiment, the accommodating frame includes a accommodating frame body and a limiting member. The accommodating frame body is detachably disposed on the second mounting frame, and the limiting member is disposed at an end of the accommodating frame body away from the second mounting frame.

[0019] In the above-mentioned maintenance auxiliary device, multiple groups of clamping units jointly clamp the submarine cable oil pump station accumulator, so that the maintenance auxiliary device can still firmly clamp the submarine cable oil pump station accumulator in a small space, and lift it relative to the support frame under the drive of the lifting member, so as to carry out subsequent maintenance or overall replacement operations, and the operation is simple. At the same time, the counterweight assembly is arranged on the side of the support frame away from the clamping unit, and the overall structure of the maintenance auxiliary device is compact and can be used normally in a narrow area; in addition, the counterweight assembly increases the weight of the maintenance auxiliary device, avoiding the maintenance auxiliary device from tilting or becoming unstable due to insufficient weight during the process of lifting the submarine cable oil pump station accumulator, thereby improving the safety of the maintenance auxiliary device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a maintenance auxiliary device according to an embodiment of the present application.

[0021] Figure 2 This is a partial structural diagram of a maintenance auxiliary device according to an embodiment of the present application.

[0022] Figure 3 This is a schematic structural diagram of a clamping assembly of a maintenance auxiliary device according to an embodiment of the present application.

[0023] 1. Support assembly; 11. Support frame; 111. Frame body; 112. Support foot; 1121. Support member; 1122. Support wheel; 12. Handle; 2. Lifting assembly; 21. Lifting member; 22. Lifting bracket; 221. Bracket body; 222. Sliding member; 223. First connecting member; 3. Clamping assembly; 31. First mounting frame; 32. Clamping unit; 321. Clamping member; 3211. Second connecting member; 3212. Clamping arm; 32125. Connecting part; 32126. Clamping part; 3213. Connecting bracket; 3214. Telescopic member; 4. Counterweight assembly; 41. Second mounting frame; 411. First mounting member; 412. Second mounting member; 42. Steering support wheel; 43. Container frame; 431. Container frame body; 432. Limiting member; 44. Storage box; 5. Control box. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0025] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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 the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0028] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0030] See also Figure 1 and Figure 2 , Figure 1 The structure diagram of the maintenance auxiliary device according to one embodiment of the present application is shown. Figure 2 A partial structural schematic diagram of an overhaul auxiliary device according to an embodiment of the present application is shown. The overhaul auxiliary device provided by an embodiment of the present application can be used to perform clamping and lifting work in a narrow working space, for example, to clamp and lift a pressure accumulator of a submarine cable oil pump station located in a panel cabinet of a submarine cable oil pump station, so as to subsequently repair or replace the faulty pressure accumulator as a whole.

[0031] An auxiliary maintenance device provided in an embodiment of the present application includes a support assembly 1, a lifting assembly 2, a clamping assembly 3 and a counterweight assembly 4. The support assembly 1 includes a support frame 11, the lifting assembly 2 includes a lifting member 21 and a lifting bracket 22, the lifting bracket 22 is slidably arranged on the support frame 11, the lifting member 21 is arranged on the support frame 11 and is connected to the lifting bracket 22, and the lifting bracket 22 can be lifted and lowered relative to the support frame 11 under the drive of the lifting member 21; the clamping assembly 3 is arranged on the lifting bracket 22, and is used to clamp objects, such as clamping a submarine cable oil pump station accumulator; the clamping assembly 3 includes a plurality of clamping units 32, the plurality of clamping units 32 are all arranged on the lifting bracket 22 and are located on the same side of the support frame 11, and the plurality of clamping units 32 are arranged on the lifting bracket 22 in sequence along the lifting direction of the lifting bracket 22; the counterweight assembly 4 is arranged on the side of the support frame 11 away from the clamping assembly 3, and the counterweight assembly 4 is used to increase the weight of the auxiliary maintenance device.

[0032] It is understandable that when the submarine cable oil pump station accumulator fails and needs to be repaired, the multiple groups of clamping units 32 of the maintenance auxiliary device can clamp the submarine cable oil pump station accumulator together, and the submarine cable oil pump station accumulator can be smoothly lifted relative to the support frame 11 under the drive of the lifting member 21, so as to carry out subsequent maintenance or overall replacement operations, and the operation is simple. By arranging the multiple groups of clamping units 32 on the same side of the support frame 11, and arranging the counterweight assembly 4 on the side of the support frame 11 away from the clamping assembly 3, the maintenance auxiliary device can be prevented from tilting due to insufficient weight during the lifting process of the submarine cable oil pump station accumulator. At the same time, the overall structure of the maintenance auxiliary device is compact, so that it can be used normally in a narrow area.

[0033] In some embodiments, the support frame 11 includes a frame body 111 and support feet 112, the support feet 112 are arranged at the bottom of the frame body 111, and the support feet 112 and the clamping assembly 3 are located on the same side of the frame body 111, which is not only conducive to improving the stability of the maintenance auxiliary device and the carrying capacity, but also reduces unnecessary space waste, making the overall structure of the maintenance auxiliary device more compact, and the maintenance auxiliary device can be used normally in a narrow space.

[0034] In some embodiments, the support foot 112 includes a support member 1121 and a support wheel 1122. The support member 1121 is disposed at the bottom of the frame body 111 and is fixedly connected to the frame body 111. The support wheel 1122 is detachably disposed on the support member 1121. Such a support foot 112 not only provides stability, but also facilitates the movement and positioning of the maintenance auxiliary device. In particular, when the maintenance auxiliary device needs to be moved frequently, the support foot 112 can simplify the transportation process. In some embodiments, the support frame 11 also includes a handle 12, which is fixedly disposed on the side of the support frame 11 away from the clamping assembly 3, so that the staff can more easily move the maintenance auxiliary device to different work areas, thereby improving operational safety and work efficiency.

[0035] In some embodiments, the lifting member 21 is disposed at the bottom of the frame body 111, and the output end of the lifting member 21 is disposed toward the lifting bracket 22. In this embodiment, the lifting member 21 is a hydraulic lifting cylinder, which has a strong load-bearing capacity and can provide sufficient lifting force to safely and reliably support the smooth lifting of heavy objects. In other embodiments, the lifting member 21 can also use an electric cylinder or other device, so it is not limited to this.

[0036] In some embodiments, the lifting bracket 22 includes a bracket body 221, a sliding member 222 and a first connecting member 223. The bracket body 221 and the clamping assembly 3 are located on the same side of the support frame 11. The sliding member 222 is slidably arranged on the frame body 111 and is connected to the bracket body 221 of the lifting bracket 22. The first connecting member 223 is arranged on the side of the bracket body 221 away from the clamping assembly 3 and is connected to the output end of the lifting member 21, so that the lifting bracket 22 can slide smoothly on the support frame 11 under the drive of the lifting member 21.

[0037] Please also read Figure 3 , Figure 3 The schematic diagram of the structure of the clamping assembly 3 of the maintenance auxiliary device of an embodiment of the present application is shown. In some embodiments, the clamping assembly 3 further includes a first mounting frame 31, which is detachably arranged on the side of the lifting bracket 22 away from the support frame 11, and the plurality of clamping units 32 are all arranged on the side of the first mounting frame 31 away from the lifting bracket 22. When the clamping assembly 3 is damaged and needs to be repaired, the clamping assembly 3 can be quickly disassembled from the lifting bracket 22, and the disassembly operation is simple, saving time and labor costs.

[0038] In some embodiments, the clamping unit 32 includes two clamping members 321, which are arranged opposite to each other to form a clamping area between the two clamping members 321, and the clamping area is used to clamp objects, such as a submarine cable oil pump station accumulator. In some embodiments, the clamping member 321 includes a second connecting member 3211, a clamping arm 3212, and a telescopic member 3214. The second connecting member 3211 is arranged on the side of the first mounting frame 31 away from the lifting bracket 22; one end of the clamping arm 3212 is hinged to the second connecting member 3211; the telescopic member 3214 is arranged on the side of the first mounting frame 31 away from the lifting bracket 22, and the output shaft of the telescopic member 3214 is connected to the clamping arm 3212. Through the extension and retraction of the telescopic member 3214, the clamping arm 3212 can be expanded outward or contracted inward within a certain range, so that the clamping unit 32 can achieve precise clamping action. The telescopic member 3214 can adjust the clamping angle and the clamping force according to actual conditions, so that the clamping unit 32 can adapt to objects of different sizes and improve the clamping effect.

[0039] In some embodiments, the telescopic member 3214 is an electric push rod, which can provide precise displacement control, thereby making the clamping action of the clamping unit 32 more sensitive. In other embodiments, the telescopic member 3214 can also be a hydraulic push rod, so it is not limited to this.

[0040] In some embodiments, the clamping member 321 further includes a connecting bracket 3213, which is disposed on a side of the first mounting frame 31 away from the lifting bracket 22; an end of the telescopic member 3214 away from the clamping arm 3212 is detachably connected to the connecting bracket 3213. When the telescopic member 3214 is damaged and needs to be repaired or replaced, the telescopic member 3214 can be quickly removed from the connecting bracket 3213, and the disassembly operation is simple.

[0041] In some embodiments, the clamping arm 3212 includes a connecting portion 32125 and a clamping portion 32126. The connecting portion 32125 has a first end and a second end that are arranged opposite to each other. The first end is close to the second connecting member 3211 relative to the second end, and the first end is hinged to the second connecting member 3211. The clamping portion 32126 is connected to the second end. The clamping portion 32126 is used to contact the object to be clamped, for example, the clamping portion 32126 is used to contact the outer surface of the accumulator of the submarine cable oil pump station. In some embodiments, the connecting portion 32125 is tilted relative to the first mounting frame 31.

[0042] In some embodiments, the side of the clamping portion 32126 facing the clamping area is an arc-shaped surface. Compared with flat contact, the arc-shaped surface can disperse the clamping force over a larger range, thereby effectively reducing the sliding or swinging of the object during the clamping process and increasing the stability and firmness of the clamping. In addition, the arc-shaped surface can relatively gently contact the surface of the object, avoiding direct pressure contact between the sharp edge and the object, reducing the risk of the clamping portion 32126 scratching the surface of the object during the clamping process, and improving the safety of the maintenance auxiliary device during use. In particular, when the maintenance auxiliary device is used to clamp the submarine cable oil pump station accumulator, the submarine cable oil pump station accumulator is a cylindrical bottle body, and the arc-shaped surface of the clamping portion 32126 can fit tightly to the outer surface of the submarine cable oil pump station accumulator, greatly improving the stability of the clamping.

[0043] In some embodiments, the counterweight assembly 4 includes a second mounting frame 41, a steering support wheel 42, a receiving frame 43 and a storage box 44. The second mounting frame 41 is connected to the side of the support frame 11 away from the clamping assembly 3; the receiving frame 43 is detachably arranged on the second mounting frame 41 and has a receiving cavity; the storage box 44 is arranged in the receiving cavity for storing the pressure carrier; the steering support wheel 42 is arranged on the side of the second mounting frame 41 away from the receiving frame 43. When the maintenance auxiliary device lifts the submarine cable oil pump station accumulator, a torque is generated; by setting the counterweight assembly 4, the weight of the maintenance auxiliary device is increased, and a reverse torque can be generated, thereby preventing the maintenance auxiliary device from tipping over and enhancing the safety of the maintenance auxiliary device during use.

[0044] In some embodiments, the ballast body may be liquids including but not limited to water, oil, etc. The liquid counterweight has flexible adjustability, and the amount of liquid can be adjusted by a simple control valve or pump system, so as to accurately adjust the counterweight of the maintenance auxiliary device. The counterweight can be dynamically adjusted according to actual needs, so that the maintenance auxiliary device maintains a better balance and is easy to operate.

[0045] In some embodiments, the second mounting frame 41 includes a first mounting member 411 and a second mounting member 412. The first mounting member 411 is connected to the side of the support frame 11 away from the clamping assembly 3. The first mounting member 411 has a third end and a fourth end that are arranged opposite to each other. The third end is closer to the support frame 11 relative to the fourth end, and the third end is connected to the support frame 11. The second mounting member 412 is connected to the fourth end of the first mounting member 411 and forms an angle with the first mounting member 411. The side of the accommodating frame 43 close to the second mounting member 412 abuts against the inner side wall of the second mounting member 412, which can prevent the accommodating frame 43 and the storage box 44 from falling off the second mounting frame 41 during movement.

[0046] In some embodiments, the accommodating frame 43 includes a accommodating frame body 431 and a limiting member 432. The accommodating frame body 431 is detachably disposed on the second mounting frame 41, and the limiting member 432 is disposed at one end of the accommodating frame body 431 away from the second mounting frame 41. When the maintenance auxiliary device is subject to accidents such as rollover, the limiting member 432 can prevent the storage box 44 from detaching from the accommodating frame 43, thereby avoiding damage to the storage box 44.

[0047] In some embodiments, the maintenance auxiliary device also includes a control box 5, which is arranged on the side of the support frame 11 away from the clamping assembly 3. The control box 5 is electrically connected to the telescopic member 3214 and is used to control the telescopic action of the telescopic member 3214 to control the movement of the clamping arm 3212.

[0048] When in use, multiple groups of clamping units 32 can clamp the submarine cable oil pump station accumulator together, and the submarine cable oil pump station accumulator is lifted relative to the support frame 11 under the drive of the lifting member 21, and then the subsequent maintenance or overall replacement operation can be continued, which is simple to operate. The overall structure of the maintenance auxiliary device provided by the present application is compact, can be used normally in a narrow area, and has good safety during use.

[0049] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A maintenance auxiliary device, characterized in that: The maintenance auxiliary device comprises: Support frame, A lifting assembly, comprising a lifting member and a lifting bracket, wherein the lifting bracket is slidably disposed on the support frame, and the lifting member is connected to the lifting bracket and is used to drive the lifting bracket to rise and fall relative to the support frame; A plurality of groups of clamping units are all arranged on the lifting bracket and located on the same side of the support frame, and the plurality of groups of clamping units are sequentially spaced apart along the lifting direction of the lifting bracket; and, A counterweight assembly is arranged on a side of the support frame away from the clamping unit, and the counterweight assembly is used to increase the weight of the maintenance auxiliary device.

2. The maintenance auxiliary device according to claim 1, characterized in that: The maintenance auxiliary device also includes a first mounting frame, which is detachably arranged on a side of the lifting bracket away from the support frame; multiple groups of clamping units are all arranged on a side of the first mounting frame away from the lifting bracket.

3. The maintenance auxiliary device according to claim 2, characterized in that: The clamping unit includes two clamping members, which are arranged opposite to each other to form a clamping area located between the two clamping members; the clamping member includes a second connecting member, a clamping arm and a telescopic member, the second connecting member is arranged on the first mounting frame, one end of the clamping arm is hinged to the second connecting member, the telescopic member is arranged on the first mounting frame, and the output shaft of the telescopic member is connected to the clamping arm.

4. The maintenance auxiliary device according to claim 3, characterized in that: The clamping arm includes a connecting portion and a clamping portion, the connecting portion has a first end and a second end arranged opposite to each other, the first end is close to the second connecting piece relative to the second end, the first end is hinged to the second connecting piece, and the clamping portion is connected to the second end for contacting the object to be clamped.

5. The maintenance auxiliary device according to claim 4, characterized in that: A side of the clamping portion facing the clamping area is an arc-shaped surface.

6. The maintenance auxiliary device according to claim 3, characterized in that: The clamping member further comprises a connecting bracket, and the connecting bracket is arranged on the first mounting frame; one end of the telescopic member away from the clamping arm is detachably connected to the connecting bracket.

7. The maintenance auxiliary device according to claim 1, characterized in that: The support frame includes a frame body and support legs. The support legs are arranged at the bottom of the frame body and are located on the same side of the frame body as the plurality of clamping units.

8. The maintenance auxiliary device according to claim 7, characterized in that: The support leg comprises a support member and a support wheel. The support member is fixedly connected to the frame body, and the support wheel is detachably arranged on the support member.

9. The maintenance auxiliary device according to claim 1, characterized in that: The counterweight assembly includes a second mounting frame, a steering support wheel, a accommodating frame and a storage box. The second mounting frame is connected to the side of the support frame facing away from the clamping unit. The accommodating frame is detachably arranged on the second mounting frame and has a accommodating cavity. The storage box is arranged in the accommodating cavity for storing the pressure carrier. The steering support wheel is arranged on the side of the second mounting frame facing away from the accommodating frame.

10. The maintenance auxiliary device according to claim 9, characterized in that: The containing frame comprises a containing frame body and a limiting member. The containing frame body is detachably arranged on the second mounting frame. The limiting member is arranged at one end of the containing frame body away from the second mounting frame.

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