Maintenance aid

Abstract

The application relates to an overhaul auxiliary device. The overhaul auxiliary device comprises a support frame, a lifting assembly, a plurality of clamping units and a counterweight assembly. The lifting assembly comprises a lifting piece and a lifting support. The lifting support is slidingly arranged on the support frame. The lifting piece is connected with the lifting support and is used for driving the lifting support to lift relative to the support frame. The plurality of clamping units are arranged on the lifting support and are located on the same side of the support frame. The plurality of clamping units are sequentially and spacedly arranged along the lifting direction of the lifting support. The counterweight assembly is arranged on the side of the support frame away from the clamping units. The counterweight assembly is used for increasing the weight of the overhaul auxiliary device. The overhaul auxiliary device provided by the application has the advantages of compact structure, normal use in a narrow area, stable clamping of a submarine cable oil pump station pressure accumulator during use and improved use safety.

Description

Technical Field

[0001] This application relates to the field of equipment maintenance technology, and in particular to a maintenance auxiliary device. Background Technology

[0002] Submarine cable oil pumping stations are a crucial component of oil-filled submarine cable systems. The pressure accumulator within the station's control cabinet is primarily used to store and provide oil pressure to maintain stable operation of the pumping system and ensure stable oil flow and pressure balance during power transmission. Over time, when the pressure accumulator malfunctions—for example, failing to store pressure or exhibiting substandard pressure storage—it needs to be lifted for repair or removed from the control cabinet and replaced entirely. However, the pressure accumulator's weight, size, and smooth surface make manual labor inefficient and pose numerous safety hazards.

[0003] With technological advancements, handling and installation auxiliary equipment is widely used in various scenarios requiring handling. Common examples include cranes and trolleys, which improve handling efficiency and reduce manpower burden. However, typical handling and installation auxiliary equipment is usually quite large, while the pressure accumulator is installed inside the cabinet of the submarine cable oil pump station, where the working space is limited, making it impossible to use typical handling and installation auxiliary equipment properly. Summary of the Invention

[0004] Therefore, it is necessary to provide a maintenance auxiliary device to address the problem of narrow working space and the inability to properly use the aforementioned handling and installation auxiliary equipment.

[0005] A maintenance auxiliary device, the maintenance auxiliary device comprising:

[0006] support frame

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

[0008] Multiple clamping units are all mounted on the lifting bracket and located on the same side of the support frame. These clamping units are arranged at intervals along the lifting direction of the lifting bracket.

[0009] A counterweight assembly is disposed on the 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 embodiment, the maintenance auxiliary device further includes a first mounting bracket, which is detachably disposed on the side of the lifting bracket away from the support frame; multiple clamping units are disposed on the side of the first mounting bracket away from the lifting bracket.

[0011] In one embodiment, the clamping unit includes two clamping members arranged opposite to each other to form a clamping area between the two clamping members; the clamping member includes a second connector, a clamping arm, and a telescopic member, the second connector is disposed on the first mounting frame, one end of the clamping arm is hinged to the second connector, the telescopic member is disposed 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 disposed opposite to each other. The first end is close to the second connector relative to the second end and is hinged to the second connector. The clamping portion is connected to the second end and is used to contact the item to be clamped.

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

[0014] In one embodiment, the clamping member further includes a connecting bracket disposed on the first mounting bracket; the 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, the support legs being disposed at the bottom of the frame body and located on the same side of the frame body along with a plurality of clamping units.

[0016] In one embodiment, the support foot includes a support member and a support wheel, the support member being fixedly connected to the frame body, and the support wheel being detachably mounted on the support member.

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

[0018] In one embodiment, the receiving frame includes a receiving frame body and a limiting member, the receiving frame body being detachably disposed on the second mounting bracket, and the limiting member being disposed at the end of the receiving frame body away from the second mounting bracket.

[0019] The aforementioned maintenance auxiliary device utilizes multiple clamping units to securely hold the subsea cable oil pump station accumulator, enabling it to remain firmly in place even in confined spaces. Driven by a lifting mechanism, the accumulator is raised relative to the support frame for subsequent maintenance or complete replacement operations, simplifying operation. Furthermore, a counterweight assembly is positioned on the side of the support frame away from the clamping units, resulting in a compact overall structure that allows for normal operation in narrow areas. The counterweight also increases the device's weight, preventing tilting or instability due to insufficient weight during the lifting of the accumulator, thus enhancing safety during use. Attached Figure Description

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

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

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

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

[0024] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0025] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0026] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, 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 possible implementation.

[0030] Please see Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of a maintenance auxiliary device according to an embodiment of this application is shown. Figure 2 A partial structural schematic diagram of a maintenance auxiliary device according to an embodiment of this application is shown. The maintenance auxiliary device provided in one embodiment of this application can be used for clamping and lifting operations in narrow working spaces, for example, for clamping and lifting the accumulator of a submarine cable oil pump station located in the cabinet of a submarine cable oil pump station, so as to subsequently repair or replace the faulty accumulator.

[0031] An embodiment of this application provides a maintenance auxiliary device including 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 element 21 and a lifting bracket 22. The lifting bracket 22 is slidably disposed on the support frame 11. The lifting element 21 is disposed on the support frame 11 and connected to the lifting bracket 22. The lifting bracket 22 can rise and fall relative to the support frame 11 under the drive of the lifting element 21. The clamping assembly 3 is disposed on the lifting bracket 22 and is used to clamp items, such as clamping the pressure accumulator of a submarine cable oil pump station. The clamping assembly 3 includes multiple clamping units 32, all of which are disposed on the lifting bracket 22 and located on the same side of the support frame 11. The multiple clamping units 32 are sequentially and spaced apart on the lifting bracket 22 along the lifting direction of the lifting bracket 22. The counterweight assembly 4 is disposed on the side of the support frame 11 away from the clamping assembly 3 and is used to increase the weight of the maintenance auxiliary device.

[0032] Understandably, when the pressure accumulator of the submarine cable oil pumping station malfunctions and requires repair, the multiple clamping units 32 of the maintenance auxiliary device can jointly clamp the pressure accumulator. The pressure accumulator can then be smoothly lifted relative to the support frame 11 under the action of the lifting component 21, facilitating subsequent maintenance or overall replacement operations. The operation is simple. By placing the multiple clamping units 32 on the same side of the support frame 11 and placing the counterweight component 4 on the side of the support frame 11 away from the clamping component 3, the maintenance auxiliary device can avoid tilting due to insufficient weight during the lifting of the pressure accumulator. Furthermore, the compact overall structure of the maintenance auxiliary device allows it to be used normally in confined spaces.

[0033] In some embodiments, the support frame 11 includes a frame body 111 and support feet 112. The support feet 112 are disposed 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. This not only helps to improve the stability of the maintenance auxiliary device and increase its load-bearing capacity, but also reduces unnecessary space waste, making the overall structure of the maintenance auxiliary device more compact, and enabling the maintenance auxiliary device to be used normally in narrow spaces.

[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 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. Especially when the maintenance auxiliary device needs to be moved frequently, the support foot 112 simplifies the handling 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, allowing workers to more easily move the maintenance auxiliary device to different work areas, improving operational safety and work efficiency.

[0035] In some embodiments, the lifting component 21 is disposed at the bottom of the frame body 111, and the output end of the lifting component 21 faces the lifting bracket 22. In this embodiment, the lifting component 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 component 21 may also be an electric cylinder or other devices, and is not limited thereto.

[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 disposed on the frame body 111 and connected to the bracket body 221 of the lifting bracket 22. The first connecting member 223 is disposed on the side of the bracket body 221 away from the clamping assembly 3 and 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 refer to the following: Figure 3 , Figure 3 A schematic diagram of the clamping assembly 3 of a maintenance auxiliary device according to an embodiment of this application is shown. In some embodiments, the clamping assembly 3 further includes a first mounting frame 31, which is detachably mounted on the side of the lifting bracket 22 opposite to the support frame 11. Multiple clamping units 32 are all mounted on the side of the first mounting frame 31 opposite to the lifting bracket 22. When the clamping assembly 3 is damaged and needs maintenance, it can be quickly removed from the lifting bracket 22. 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 them. The clamping area is used to clamp items, such as the pressure accumulator of a submarine cable oil pump station. 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 disposed on the side of the first mounting frame 31 opposite to the lifting bracket 22. One end of the clamping arm 3212 is hinged to the second connecting member 3211. The telescopic member 3214 is disposed on the side of the first mounting frame 31 opposite to the lifting bracket 22, and the output shaft of the telescopic member 3214 is connected to the clamping arm 3212. By extending and retracting the telescopic member 3214, the clamping arm 3212 can expand outward or retract inward within a certain range, enabling the clamping unit 32 to achieve precise clamping actions. The telescopic component 3214 can adjust the clamping angle and clamping force according to the actual situation, so that the clamping unit 32 can adapt to items of different sizes and improve the clamping effect.

[0039] In some embodiments, the telescopic member 3214 is an electric actuator, which provides precise displacement control, thereby making the clamping action of the clamping unit 32 more sensitive. In other embodiments, the telescopic member 3214 may also be a hydraulic actuator, and is not limited thereto.

[0040] In some embodiments, the clamping member 321 further includes a connecting bracket 3213, which is disposed on the side of the first mounting bracket 31 opposite to the lifting bracket 22; the 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 repair or replacement, it 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 disposed opposite to each other. The first end is close to the second connector 3211 relative to the second end and is hinged to the second connector 3211. The clamping portion 32126 is connected to the second end and is used to contact the item to be clamped, for example, the clamping portion 32126 is used to contact the outer surface of the pressure accumulator of the submarine cable oil pump station. In some embodiments, the connecting portion 32125 is inclined relative to the first mounting bracket 31.

[0042] In some embodiments, the side of the clamping part 32126 facing the clamping area is an arc-shaped surface. Compared with flat contact, the arc-shaped surface can distribute the clamping force over a larger range, thereby effectively reducing the slippage or swaying of the item during clamping and increasing the stability and firmness of the clamping. In addition, the arc-shaped surface can make relatively gentle contact with the surface of the item, avoiding direct pressure contact between sharp edges and the item, reducing the risk of the clamping part 32126 scratching the surface of the item during clamping, and improving the safety of the maintenance auxiliary device during use. Especially when the maintenance auxiliary device is used to clamp the pressure vessel of the submarine cable oil pump station, which is a cylindrical bottle, the arc-shaped surface of the clamping part 32126 can closely fit the outer surface of the submarine cable oil pump station pressure vessel, 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 support frame 11 on the side opposite to the clamping assembly 3. The receiving frame 43 is detachably mounted on the second mounting frame 41 and has a receiving cavity. The storage box 44 is disposed in the receiving cavity for storing the pressure carrier. The steering support wheel 42 is disposed on the side of the second mounting frame 41 opposite to the receiving frame 43. When the maintenance auxiliary device lifts the pressure accumulator of the submarine cable oil pump station, a torque is generated. By setting the counterweight assembly 4, the weight of the maintenance auxiliary device is increased, which generates a reverse torque, 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 pressure carrier may be a liquid, including but not limited to water and oil. The liquid counterweight is highly adjustable; the amount of liquid can be adjusted by simple control valves or pump systems, thereby precisely adjusting the counterweight of the maintenance auxiliary device. The counterweight can be dynamically adjusted according to actual needs, ensuring optimal balance of the maintenance auxiliary device, and operation is simple.

[0045] In some embodiments, the second mounting bracket 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 opposite to the clamping assembly 3. The first mounting member 411 has a third end and a fourth end disposed opposite to each other, with the third end close 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 receiving frame 43 near the second mounting member 412 abuts against the inner sidewall of the second mounting member 412, which can prevent the receiving frame 43 and the storage box 44 from falling off the second mounting bracket 41 during movement.

[0046] In some embodiments, the receiving frame 43 includes a receiving frame body 431 and a limiting member 432. The receiving frame body 431 is detachably mounted on the second mounting bracket 41, and the limiting member 432 is located at one end of the receiving frame body 431 away from the second mounting bracket 41. When the maintenance auxiliary device is overturned or otherwise accidentally damaged, the limiting member 432 can prevent the storage box 44 from falling out of the receiving frame 43, thus avoiding damage to the storage box 44.

[0047] In some embodiments, the maintenance auxiliary device further includes a control box 5, which is disposed 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 movement of the telescopic member 3214 in order to control the movement of the clamping arm 3212.

[0048] In use, multiple clamping units 32 can jointly clamp the submarine cable oil pump station accumulator. Driven by the lifting component 21, the accumulator is raised relative to the support frame 11, allowing for subsequent maintenance or complete replacement work. Operation is simple. The maintenance auxiliary device provided in this application has a compact overall structure, can be used normally in narrow areas, and offers good safety during use.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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 embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An inspection aid, characterized in that The maintenance assisting device comprises: a support frame, a lifting assembly comprising a lifting member and a lifting support, the lifting support being slidingly arranged on the support frame, the lifting member being connected with the lifting support and used to drive the lifting support to lift relative to the support frame; a clamping assembly comprising a plurality of clamping units, each of which is arranged on the lifting support and located on the same side of the support frame, and the plurality of clamping units are sequentially and spacedly arranged along the lifting direction of the lifting support; and a counterweight assembly arranged on the side of the support frame away from the clamping units, the counterweight assembly being used to increase the weight of the maintenance assisting device. The clamping assembly further comprises a first mounting frame, which is detachably arranged on the side of the lifting support away from the support frame; and the plurality of clamping units are arranged on the side of the first mounting frame away from the lifting support. The clamping unit comprises two clamping members oppositely arranged to form a clamping area between the two clamping members; the clamping member comprises a second connecting member, a clamping arm and an extension member, the second connecting member being arranged on the first mounting frame, one end of the clamping arm being hingedly connected to the second connecting member, and the extension member being arranged on the first mounting frame, the output shaft of the extension member being connected with the clamping arm. The clamping arm comprises a connecting portion and a clamping portion, the connecting portion having a first end and a second end oppositely arranged, the first end being closer to the second connecting member relative to the second end, the first end being hingedly connected to the second connecting member, and the clamping portion being connected with the second end and used to contact the article to be clamped. The support frame comprises a frame body, the lifting support comprises a support body, a sliding member and a first connecting member, the support body and the clamping assembly being located on the same side of the support frame, the sliding member being slidingly arranged on the frame body and connected with the support body, and the first connecting member being arranged on the side of the support body away from the clamping assembly and connected with the output end of the lifting member.

2. The servicing aid according to claim 1, characterized in that The side of the clamping portion facing the clamping area is an arc surface.

3. The servicing aid of claim 1, wherein, The clamping member further comprises a connecting support arranged on the first mounting frame; and one end of the extension member away from the clamping arm is detachably connected with the connecting support.

4. The tool according to claim 1, wherein The support frame further comprises a support leg arranged at the bottom of the frame body and located on the same side of the frame body as the plurality of clamping units.

5. The servicing aid according to claim 4, characterized in that The support leg comprises a support member fixedly connected with the frame body and a support wheel detachably arranged on the support member.

6. The tool according to claim 1, wherein The counterweight assembly comprises a second mounting frame, a turning support wheel, a containing frame and a storage box, the second mounting frame being connected to the side of the support frame away from the clamping units, the containing frame being detachably arranged on the second mounting frame and having a containing cavity, the storage box being arranged in the containing cavity and used to store ballast, and the turning support wheel being arranged on the side of the second mounting frame away from the containing frame.

7. The servicing aid according to claim 6, characterized in that The accommodating frame comprises an accommodating frame body and a limiting piece, the accommodating frame body is detachably arranged on the second mounting frame, and the limiting piece is arranged at one end of the accommodating frame body away from the second mounting frame.

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