Drawer type submodule base assembly and operation and maintenance mechanism thereof

Abstract

The invention provides a drawer type submodule base assembly and an operation and maintenance mechanism thereof. The drawer type submodule base assembly comprises a rectangular frame and first rails, wherein rolling assemblies are arranged on the two sides of the rectangular frame, and the first rails are arranged on the two outer sides of the rectangular frame respectively. During use, the first track is fixedly connected with a valve tower; a sub-module component is fixed on the rectangular frame, and the rolling assembly drives the sub-module component fixed on the rectangular frame to move in the first track; the rectangular frame rolls in the first track through the rolling assembly, so that the action of moving the sub-module component from the valve tower to the operation and maintenance mechanism or moving the sub-module component from the operation and maintenance mechanism to the valve tower is completed, and disassembly and maintenance of the sub-module component are achieved. The efficiency of replacing sub-module components in the valve tower and the safety of workers are improved, and meanwhile the insulation safety risk caused by the fact that small metal pieces falling accidentally fall into the valve tower in the working process can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible direct current power transmission, and in particular to a drawer-type submodule base assembly and an operation and maintenance mechanism thereof. Background Art

[0002] When a submodule on a valve tower fails and needs to be repaired, most of the time, manual entry is used to disassemble and repair the valve tower. This method is not only time-consuming and labor-intensive, but also has great safety hazards. If parts accidentally fall into the valve tower during maintenance, it will also threaten the insulation safety of the valve tower. Another method is to make the submodule base assembly into a guide rail slide mechanism, then connect the submodule base assembly with a docking device, and then connect the transfer platform hoisted in the air to the docking device, and remove the submodule through the transmission system of the transfer platform. Although this method can remove the submodule as a whole for replacement, the process is relatively complicated. At the same time, the docking accuracy is poor when hoisted in the air, and the guide rail slide mechanism has high precision requirements. Therefore, when the submodule moves from its own guide rail to the transfer platform guide rail, it will become stuck, and even damage the slide and guide rail. Summary of the invention

[0003] In order to solve the problems of personnel safety and low efficiency caused by entering the valve tower to replace submodule components in the prior art, the present invention proposes a drawer-type submodule base assembly, comprising: a rectangular frame with rolling assemblies on both sides and the first tracks respectively arranged on the two outer sides of the rectangular frame;

[0004] When in use, the first track is fixedly connected to the valve tower; the submodule components are fixed on the rectangular frame, and the rolling assembly drives the submodule components fixed on the rectangular frame to move in the first track.

[0005] Preferably, the rolling assembly comprises:

[0006] Walking rollers are installed on two outer sides of the rectangular frame, the walking rollers are embedded and rollingly connected in the first track, and a plurality of the walking rollers are arranged at intervals;

[0007] The guide rollers are installed on the two outer sides of the rectangular frame. The guide rollers are embedded and rollingly connected in the first track, and the axes of the guide rollers and the axes of the travel rollers are perpendicular to each other.

[0008] Preferably, a limit pin and a first hinge assembly are respectively provided at one end of the rectangular frame;

[0009] The limit pins are located at two sides of the end of the rectangular frame, and the first hinge seat assembly is located in the middle of the end of the rectangular frame.

[0010] On the other hand, the present invention further provides a drawer-type submodule operation and maintenance mechanism, which is connected to an end of a drawer-type submodule base assembly as described above away from the valve tower, and the operation and maintenance mechanism comprises:

[0011] A fixed frame, one end of which is connected to the first track;

[0012] The transmission system is mounted on the fixed frame, and the transmission direction of the transmission system is parallel to the fixed frame.

[0013] Preferably, the fixed frame comprises: an upper rectangular frame and a lower rectangular frame;

[0014] The upper rectangular frame is stacked on the lower rectangular frame, and a second track that docks with the first track is arranged on the upper rectangular frame.

[0015] Preferably, the upper rectangular frame comprises: a cross beam and a first longitudinal beam;

[0016] The first longitudinal beams are provided with two parallel ones, and the second rails are installed above the first longitudinal beams;

[0017] Two ends of the cross beam are respectively connected to two of the first longitudinal beams, a plurality of cross beams are arranged at intervals, and the transmission system is mounted on the cross beams.

[0018] Preferably, the lower rectangular frame comprises:

[0019] Two second longitudinal beams are provided opposite to each other, and the two second longitudinal beams are connected to the bottom of the upper rectangular frame;

[0020] Limiting plates are respectively arranged at both ends of the second longitudinal beam and are used to fix the upper rectangular frame.

[0021] Preferably, the transmission system comprises:

[0022] A transmission track is mounted on the upper rectangular frame;

[0023] A second hinge assembly is installed on the transmission track and connected to the first hinge assembly of the rectangular frame through a connecting rod;

[0024] The driving mechanism is connected to the transmission track and is used to drive the transmission track to rotate so as to drive the rectangular frame connected to the second hinge seat assembly to move to the upper rectangular frame.

[0025] Preferably, the bottom end of the fixed frame is connected with a lifting mechanism and a universal caster;

[0026] The fixed end of the jacking mechanism is fixedly mounted on the lower rectangular frame, and the jacking end abuts against the upper rectangular frame.

[0027] Preferably, the lifting mechanism comprises: a threaded sleeve and a screw;

[0028] The threaded sleeve is fixed in the lower rectangular frame.

[0029] One end of the screw rod is threadedly connected to the threaded sleeve, and the other end is connected to the upper rectangular frame.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The present invention provides a drawer-type submodule base assembly, comprising: a rectangular frame with rolling assemblies on both sides and first tracks respectively arranged on both outer sides of the rectangular frame; when in use, the first track is fixedly connected to the valve tower; submodule components are fixed on the rectangular frame, and the rolling assembly drives the submodule components fixed on the rectangular frame to move in the first track. The rectangular frame rolls in the first track through the rolling assembly, the first track is fixed on the valve tower, and the first track is connected to the second track of the operation and maintenance mechanism to form a transportation channel, so that the submodule components enter the valve tower from the operation and maintenance mechanism or are transported from the valve tower to the operation and maintenance mechanism, completing the replacement of submodule components. The mechanism has strong adaptability, is easy to operate, and the operation and maintenance work is fast and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 An exploded schematic diagram of a submodule base assembly provided in an embodiment of the present invention;

[0033] Figure 2 A schematic diagram of a submodule operation and maintenance mechanism provided in an embodiment of the present invention;

[0034] Figure 3 A schematic diagram of an upper rectangular frame provided in an embodiment of the present invention;

[0035] Figure 4 A schematic diagram of a lower rectangular frame provided in an embodiment of the present invention;

[0036] Figure 5 A schematic diagram of a transmission system, a connecting rod, and a hinge seat assembly provided in an embodiment of the present invention;

[0037] Figure 6 It is an implementation effect diagram provided in the embodiment of the present invention;

[0038] Among them, 1.1-rectangular frame, 1.2-travel roller, 1.3-guide roller, 1.4-first track, 1.5-limit pin, 1.6-first hinge assembly, 1.7-pin seat, 2.1-upper rectangular frame, 2.1.1-second track, 2.1.2-crossbeam, 2.1.3-first longitudinal beam, 2.1.4-pressure plate, 2.1.5-locating pin, 2.2-lower rectangular frame, 2.2.1-second longitudinal beam, 2.2.2-limit plate, 2.3-universal caster, 3-transmission system, 3.1-transmission track, 3.2-second hinge assembly, 3.3-connecting rod, 4-lifting mechanism. DETAILED DESCRIPTION

[0039] Embodiment 1:

[0040] A drawer-type submodule base assembly, such as Figure 1 The device shown comprises: a rectangular frame 1.1 with rolling assemblies on both sides and first rails 1.4 respectively arranged on both outer sides of the rectangular frame 1.1;

[0041] When in use, the first track 1.4 is fixedly connected to the valve tower; the submodule components are fixed on the rectangular frame 1.1, and the rolling assembly drives the submodule components fixed on the rectangular frame 1.1 to move in the first track 1.4.

[0042] A plurality of grid plates are arranged in the middle of the rectangular frame 1.1, so as to facilitate the placement of the submodule components on the rectangular frame 1.1. Roller assemblies are fixed on both sides of the rectangular frame 1.1, and the roller assemblies are moved by rolling in the first track 1.4. The first track 1.4 is fixedly connected to the valve tower. One end of the first track 1.4 is closed and used to limit the travel roller 1.2. The other end of the first track 1.4 is open. The open end of the first track 1.4 is connected to the operation and maintenance mechanism and docked with the second track 2.1.1 of the operation and maintenance mechanism.

[0043] By means of the coordinated connection between the square frame 1.1 with the rolling assembly and the first track 1.4, the submodule components are transported from the valve tower to the operation and maintenance mechanism, or the submodule components are transported from the operation and maintenance mechanism to the valve tower, thereby realizing the disassembly and assembly of the submodule components; improving the efficiency of replacing the submodule components in the valve tower and the safety of the staff, and at the same time reducing the insulation safety risks caused by small metal parts accidentally falling into the valve tower during work.

[0044] Preferably, the rolling assembly comprises:

[0045] Walking rollers 1.2 are installed on two outer sides of the rectangular frame 1.1. The walking rollers 1.2 are embedded and rollingly connected in the first track 1.4. A plurality of the walking rollers 1.2 are arranged at intervals.

[0046] The guide rollers 1.3 are installed on both outer sides of the rectangular frame 1.1. The guide rollers 1.3 are embedded and rollingly connected in the first track 1.4, and the axis of the guide rollers 1.3 is perpendicular to the axis of the travel rollers 1.2.

[0047] The guide roller 1.3 and the walking roller 1.2 are embedded and rollingly connected in the first track 1.4. There is a gap between the walking roller 1.2 and the first track 1.4, which can ensure that the walking roller 1.2 can roll unimpeded in the first track 1.4. Such a design can ensure that the walking roller 1.2 can still pass smoothly when the docking accuracy between the sub-module base assembly and the operation and maintenance mechanism is low.

[0048] The guide rollers 1.3 are installed at both ends of the rectangular frame 1.1. The axes of the guide rollers 1.3 and the travel rollers 1.2 are perpendicular to each other and connected to the inner wall of the first track 1.4, so as to prevent the submodule base assembly from shifting in direction when moving in the first track 1.4.

[0049] A pin seat 1.7 is provided at one end of the first track 1.4 away from the valve tower. The pin seat 1.7 is installed above the first track 1.4 and cooperates with the positioning pin 2.1.5 corresponding to the operation and maintenance mechanism to achieve docking between the base assembly and the operation and maintenance mechanism.

[0050] Preferably, a limit pin 1.5 and a first hinge assembly 1.6 are respectively provided at one end of the rectangular frame 1.1;

[0051] The limiting pins 1.5 are located at both sides of the end of the rectangular frame 1.1, and the first hinge seat assembly 1.6 is located in the middle of the end of the rectangular frame 1.1.

[0052] The limiting pin 1.5 can be quickly plugged in and out, and the rectangular frame 1.1 is connected to the fixed crossbeam of the valve tower through the limiting pin 1.5.

[0053] The first hinge assembly 1.6 is connected to the second hinge assembly 3.2 corresponding to the operation and maintenance mechanism, and the submodule components can be transmitted from the base assembly to the operation and maintenance mechanism through the connection between the first hinge assembly 1.6 and the second hinge assembly 3.2.

[0054] Embodiment 2:

[0055] The present invention based on the same inventive concept also provides a submodule operation and maintenance mechanism, which is connected to the end of the drawer-type submodule base assembly away from the valve tower, such as Figure 2 As shown, the operation and maintenance organization includes:

[0056] A fixed frame, one end of which is connected to the first track 1.4;

[0057] The transmission system 3 is mounted on the fixed frame, and the transmission direction of the transmission system 3 is parallel to the fixed frame.

[0058] The fixed frame is connected to the first track 1.4, and the transmission system 3 is connected to the rectangular frame 1.1. The transmission system 3 drives the rectangular frame 1.1 to roll in the fixed frame, so that the rectangular frame 1.1 rolls from the first track 1.4 into the second track 2.1.1 of the fixed frame; through the docking of the second track 2.1.1 and the first track 1.4, the transmission system 3 outputs the rotational motion as a linear motion, driving the sub-module components to move in the through track, thereby completing the transfer of the sub-module components.

[0059] like Figure 3 As shown, the fixed frame includes: an upper rectangular frame 2.1 and a lower rectangular frame 2.2;

[0060] The upper rectangular frame 2.1 is stacked on the lower rectangular frame 2.2, and a second track 2.1.1 is provided on the upper rectangular frame 2.1 to dock with the first track 1.4.

[0061] The upper rectangular frame 2.1 is stacked on the lower rectangular frame 2.2, and a limiting plate 2.2.2 is provided on the lower rectangular frame 2.2, by which the upper rectangular frame 2.1 and the lower rectangular frame 2.2 are limited; pressure plates 2.1.4 are respectively provided at the stacking positions of the upper rectangular frame 2.1 and the lower rectangular frame 2.2, and when there is no need to adjust the height, the pressure plates 2.1.4 on the upper rectangular frame 2.1 and the lower rectangular frame 2.2 are in contact with each other.

[0062] Preferably, the upper rectangular frame 2.1 comprises: a cross beam 2.1.2 and a first longitudinal beam 2.1.3;

[0063] The first longitudinal beams 2.1.3 are provided with two parallel ones, and the second rails 2.1.1 are installed above the first longitudinal beams 2.1.3;

[0064] The two ends of the cross beam 2.1.2 are respectively connected to two of the first longitudinal beams 2.1.3, and a plurality of cross beams 2.1.2 are arranged at intervals, and the transmission system 3 is mounted on the cross beams 2.1.2.

[0065] The second rail 2.1.1 is installed on the upper side of the first longitudinal beam 2.1.3, the second rail 2.1.1 is butted with the first rail 1.4, the first rail 1.4 and the second rail 2.1.1 have the same cross-section, and the pin seat 1.7 at the top of the first rail 1.4 is connected with the positioning pin 2.1.5 at the top of the second rail 2.1.1;

[0066] When moving from the valve tower to the operation and maintenance mechanism, the rectangular frame 1.1 moves from the first track 1.4 to the second track 2.1.1, completing the transportation of the submodule components placed on the rectangular frame 1.1;

[0067] There are also multiple cross beams 2.1.2 connected between the two parallel first longitudinal beams 2.1.3. The cross beams 2.1.2 are used to fix the two parallel first longitudinal beams 2.1.1 so that they do not deform. At the same time, the transmission system 3 is mounted on the cross beams 2.1.2. The transmission direction of the transmission system 3 is the same as that of the first longitudinal beams 2.1.3. One end of the transmission system 3 is connected to the rectangular frame 1.1, driving the rectangular frame 1.1 to be transported from one end of the transmission system 3 to the other end.

[0068] like Figure 4 As shown, the lower rectangular frame 2.2 includes:

[0069] Two second longitudinal beams 2.2.1 are provided opposite to each other, and the two second longitudinal beams 2.2.1 are connected to the bottom of the upper rectangular frame 2.1;

[0070] Limiting plates 2.2.2 are respectively arranged at both ends of the second longitudinal beam and are used to fix the upper rectangular frame 2.1.

[0071] The second longitudinal beam 2.2.1 and the first longitudinal beam 2.1.3 are correspondingly arranged below the first longitudinal beam 2.1.3, and a pressure plate 2.1.4 connected to the second longitudinal beam 2.2.1 and the first longitudinal beam 2.1.3 is arranged between the second longitudinal beam 2.2.1 and the first longitudinal beam 2.1.3 respectively. When height adjustment is not required, the pressure plates 2.1.4 on the first longitudinal beam 2.1.3 of the upper rectangular frame 2.1 and the second longitudinal beam 2.2.1 of the lower rectangular frame 2.2 fit each other;

[0072] The two ends of the second longitudinal beam 2.1.2 are respectively provided with a limit plate 2.2.2, and the limit plate 2.2.2 is an H-shaped structure. The lower end of the H-shaped structure is fixed on the second longitudinal beam 2.1.2, and the upper end of the H-shaped structure is clamped on the first longitudinal beam 2.1.3, so that the first longitudinal beam 2.1.3 will not be offset when the height is adjusted.

[0073] like Figure 5 As shown, the transmission system 3 includes:

[0074] Transmission track 3.1, mounted on the upper rectangular frame 2.1;

[0075] A second hinge assembly 3.2, mounted on the transmission track 3.1, connected to the first hinge assembly 1.6 of the rectangular frame 1.1 via a connecting rod 3.3;

[0076] The driving mechanism is connected to the transmission track 3.1 and is used to drive the transmission track 3.1 to rotate so as to drive the rectangular frame 1.1 connected to the second hinge assembly 3.2 to move to the upper rectangular frame 2.1.

[0077] The transmission system 3 is driven by external force to convert the rotational motion into linear motion.

[0078] The second hinge assembly 3.2 installed on the transmission track 3.1 of the transmission system 3 is connected to the first hinge assembly 1.6 installed on the base assembly through a connecting rod 3.3.

[0079] When the driving mechanism is started, the transmission track 3.1 starts to rotate, and the connecting rod 3.3 drives the rectangular frame 1.1 on which the submodule components are placed to move from the first track 1.4 to the second track 2.1.2 or from the second track 2.1.1 to the first track 1.4.

[0080] Preferably, the bottom end of the fixed frame is connected with a lifting mechanism 4 and a universal caster 2.3;

[0081] The fixed end of the lifting mechanism 4 is fixedly mounted on the lower rectangular frame 2.2, and the lifting end abuts against the upper rectangular frame 2.1.

[0082] The operation and maintenance mechanism is also provided with a jacking mechanism 4 and a movable support assembly, which can adjust its own position and height so that the second track 2.1.1 is completely docked with the first track 1.4 corresponding to the base assembly to form a through track.

[0083] The support frame of the universal caster 2.3 is connected to the four corners of the lower rectangular frame 2.2. The universal caster 2.3 has a braking function for adjusting the position of the operation and maintenance mechanism to facilitate docking.

[0084] Preferably, the lifting mechanism 4 comprises: a threaded sleeve and a screw;

[0085] The threaded sleeve is fixed in the lower rectangular frame 2.2.

[0086] One end of the screw rod is threadedly connected to the threaded sleeve, and the other end is connected to the upper rectangular frame 2.1.

[0087] The lifting mechanism 4 adopts the principle of thread self-locking. The screw cooperates with the threaded sleeve fixed in the lower rectangular frame 2.2. The upper rectangular frame 2.1 is lifted or lowered by rotating the screw, which helps to achieve accurate docking of the second track 2.1.1 with the first track 1.4.

[0088] Embodiment 3:

[0089] The present invention proposes a drawer-type submodule base assembly and its operation and maintenance mechanism, such as Figure 6 Taking the removal of the submodule as an example, the specific implementation is as follows:

[0090] When sub-module components need maintenance and replacement, the sub-module maintenance mechanism is placed in a lifting vehicle and lifted to the valve tower sub-module that needs to be replaced. By operating the lifting mechanism 4 and the universal caster 2.3, the positioning pin 2.1.5 of the sub-module maintenance mechanism is fully inserted into the pin seat 1.7 of the sub-module base assembly, and the first rail 1.4 and the second rail 2.1.1 are docked.

[0091] The second hinge assembly 3.2 installed on the transmission track 3.1 of the transmission system 3 is connected to the first hinge assembly 1.6 installed on the rectangular frame 1.1 of the base assembly through a connecting rod 3.3. Pull out the limit pin 1.5 of the limit base assembly, and then drive the transmission system 3 of the operation and maintenance mechanism to move, drive the base assembly to move forward into the second track 2.1.1 of the operation and maintenance mechanism, so as to remove the submodule components.

[0092] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0093] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0094] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0095] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0096] The above are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of the claims of the present invention to be approved.

Claims

1. A drawer-type submodule base assembly, characterized in that: include: A rectangular frame (1.1) with rolling assemblies on both sides and first tracks (1.4) respectively arranged on both outer sides of the rectangular frame (1.1); When in use, the first track (1.4) is fixedly connected to the valve tower; the submodule components are fixed on the rectangular frame (1.1), and the rolling assembly drives the submodule components fixed on the rectangular frame (1.1) to move in the first track (1.4).

2. A drawer-type submodule base assembly as claimed in claim 1, characterized in that: The rolling assembly comprises: Walking rollers (1.2) are installed on two outer sides of the rectangular frame (1.1); the walking rollers (1.2) are embedded and rollingly connected in the first track (1.4); and a plurality of the walking rollers (1.2) are arranged at intervals; Guide rollers (1.3) are mounted on two outer sides of the rectangular frame (1.1); the guide rollers (1.3) are embedded and rollingly connected in the first track (1.4); and the axes of the guide rollers (1.3) and the axes of the travel rollers (1.2) are perpendicular to each other.

3. A drawer-type submodule base assembly as claimed in claim 1, characterized in that: A limit pin (1.5) and a first hinge seat assembly (1.6) are respectively provided at one end of the rectangular frame (1.1); The limit pins (1.5) are located on both sides of the end of the rectangular frame (1.1), and the first hinge seat assembly (1.6) is located in the middle of the end of the rectangular frame (1.1).

4. A submodule operation and maintenance mechanism, characterized in that: Connected to an end of a drawer-type submodule base assembly away from the valve tower as described in claims 1-3, the operation and maintenance mechanism includes: A fixed frame, one end of which is connected to the first track (1.4); The transmission system (3) is mounted on the fixed frame, and the transmission direction of the transmission system (3) is parallel to the fixed frame.

5. A submodule operation and maintenance mechanism as claimed in claim 4, characterized in that: The fixed frame comprises: an upper rectangular frame (2.1) and a lower rectangular frame (2.2); The upper rectangular frame (2.1) is stacked on the lower rectangular frame (2.2), and the upper rectangular frame (2.1) is provided with a second track (2.1.1) connected to the first track (1.4).

6. A submodule operation and maintenance mechanism as claimed in claim 5, characterized in that: The upper rectangular frame (2.1) comprises: a cross beam (2.1.2) and a first longitudinal beam (2.1.3); The first longitudinal beams (2.1.3) are provided with two parallel ones, and the second rails (2.1.1) are installed above the first longitudinal beams (2.1.3); Two ends of the cross beam (2.1.2) are respectively connected to two of the first longitudinal beams (2.1.3), a plurality of cross beams (2.1.2) are arranged at intervals, and the transmission system (3) is mounted on the cross beam (2.1.2).

7. A submodule operation and maintenance mechanism according to claim 5, characterized in that: The lower rectangular frame (2.2) comprises: Two second longitudinal beams (2.2.1) are provided opposite to each other, and the two second longitudinal beams (2.2.1) are connected to the bottom of the upper rectangular frame (2.1); Limiting plates (2.2.2) are respectively arranged at both ends of the second longitudinal beam and are used to fix the upper rectangular frame (2.1).

8. A submodule operation and maintenance mechanism as claimed in claim 5, characterized in that: The transmission system (3) comprises: A transmission track (3.1) is mounted on the upper rectangular frame (2.1); A second hinge assembly (3.2) is mounted on the transmission track (3.1) and connected to the first hinge assembly (1.6) of the rectangular frame (1.1) via a connecting rod (3.3); A driving mechanism is connected to the transmission track (3.1) and is used to drive the transmission track (3.1) to rotate, thereby driving the rectangular frame (1.1) connected to the second hinge seat assembly (3.2) to move to the upper rectangular frame (2.1).

9. A submodule operation and maintenance mechanism according to claim 4, characterized in that: The bottom end of the fixed frame is connected with a lifting mechanism (4) and a universal caster (2.3); The fixed end of the lifting mechanism (4) is fixedly mounted on the lower rectangular frame (2.2), and the lifting end abuts against the upper rectangular frame (2.1).

10. A submodule operation and maintenance mechanism according to claim 9, characterized in that: The lifting mechanism (4) comprises: a threaded sleeve and a screw; The threaded sleeve is fixed in the lower rectangular frame (2.2). One end of the screw rod is threadedly connected to the threaded sleeve, and the other end is connected to the upper rectangular frame (2.1).

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