Modularized high-low voltage power distribution cabinet and use method thereof

Abstract

The invention discloses a modularized high-low voltage power distribution cabinet and a use method thereof, and relates to the technical field of power distribution cabinets, the modularized high-low voltage power distribution cabinet comprises a power distribution cabinet body, two side walls of the power distribution cabinet body are provided with support assemblies, the support assemblies are slidably connected in a limiting mechanism, the limiting mechanism is arranged on an adjusting mechanism, and the adjusting mechanism is arranged on the power distribution cabinet body. The two sets of adjusting mechanisms are symmetrically arranged, and the bottom end of the power distribution cabinet body is placed on a transportation plate trailer to be transported. A gap in the bottom end of a traditional power distribution cabinet is small, dust and impurities are easy to accumulate in the gap, and heat dissipation of equipment in the cabinet is affected, and according to the design of the device, through cooperation of the adjusting mechanism and the supporting assembly, the bottom end of the power distribution cabinet body can be lifted, enough space is provided, and a worker can conveniently use a conventional cleaning tool to conduct thorough cleaning.

Description

Technical Field

[0001] The invention relates to a modular high and low voltage power distribution cabinet and a use method thereof. Background Art

[0002] Modular high and low voltage distribution cabinet is a kind of distribution equipment with standardized and detachable design. It integrates the functional units of traditional distribution cabinets (such as incoming line, outgoing line, protection, monitoring, etc.) into independent modules to achieve flexible combination and rapid deployment. Only a small gap is reserved when the bottom end of the existing modular high and low voltage distribution cabinet is in contact with the ground. Although this design may be for stability or moisture-proof considerations, the narrow gap between the bottom and the ground brings the following significant disadvantages: when the distribution cabinet is in operation, the internal equipment will generate heat, and the bottom gap is an important channel for air convection. However, if the gap is too small, dust, fiber and other impurities will easily accumulate here to form a "dust layer". The thermal conductivity of dust is low, which will hinder the air circulation at the bottom air inlet, resulting in the inability to effectively dissipate the heat in the cabinet, thereby causing the temperature of the equipment to rise. Long-term high-temperature operation may accelerate the aging of electronic components, reduce the life of the equipment, and even cause faults such as overload or tripping. The bottom gap is usually only a few millimeters, and conventional cleaning tools (such as brooms and vacuum cleaners) are difficult to penetrate deeply. Manual cleaning requires disassembling the distribution cabinet or using special tools, which is time-consuming and labor-intensive. In view of this, the present invention proposes a modular high and low voltage distribution cabinet to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a modular high and low voltage distribution cabinet and a method of using the same, so as to solve the problem in the background technology that the internal equipment of the distribution cabinet will generate heat when it is running, and the bottom gap is an important channel for air convection. However, if the gap is too small, impurities such as dust and fiber will easily accumulate there.

[0004] To achieve the above object, the present invention provides the following technical solutions: a modular high and low voltage power distribution cabinet, comprising a power distribution cabinet body, support components are installed on both side walls of the power distribution cabinet body, the support components are slidably connected in a limit mechanism, the limit mechanism is installed on an adjustment mechanism, and the adjustment mechanism is symmetrically arranged in two groups, and the bottom end of the power distribution cabinet body is placed on a transport flatbed truck for transportation; The support assembly includes a plurality of groups of support rods fixed on the side walls of the power distribution cabinet body, and the support rods are all rotatably connected with rollers, and the rollers and support rods are movably connected in a limiting mechanism.

[0005] As an improvement of the above technical solution, the adjusting mechanism includes bases symmetrically arranged on both sides of the power distribution cabinet body. A driving motor is arranged inside the base. The output end of the driving motor is connected to a lead screw. A nut sleeve is threadedly connected to the lead screw. A guide rod is connected inside the base. A sliding sleeve is sleeved on the guide rod. A moving plate is sleeved on the nut sleeve and the sliding sleeve. A first slot and a second slot for inserting the nut sleeve and the sliding sleeve are formed inside the moving plate.

[0006] As an improvement of the above technical solution, an external switch is arranged on the outer wall of the base. The output end of the external switch is electrically connected to the input end of the driving motor through a wire.

[0007] As an improvement of the above technical solution, two groups of guide rods are symmetrically arranged inside the base. The lead screw is rotatably connected to the base. The base and the two groups of guide rods are on the same straight line. A limiting mechanism is installed on the outer wall of the moving plate.

[0008] As an improvement of the above technical solution, the limiting mechanism includes a fixing plate fixedly installed on the inner outer wall of the moving plate. An inner slot is formed inside the fixing plate. A roller is slidably connected inside the inner slot. An installation plate is arranged at the top of the fixing plate. A chute is formed inside the installation plate. A slider is slidably connected inside the chute. The inner end of the slider is fixed to a movable rod. The movable rod is inserted into the installation plate. A return spring is wound around the outer wall of the movable rod. The bottom end of the movable rod is connected to a limiting plate. The bottom end of the limiting plate penetrates through the fixing plate into the inner slot. The top end of the movable rod is connected to a pull rod.

[0009] As an improvement of the above technical solution, the shape of the inner slot is convex. A roller and a support rod are slidably connected inside the inner slot.

[0010] As an improvement of the above technical solution, one end of the return spring is connected to the outer wall of the slider, and the other end of the return spring is connected to the inner wall of the installation plate.

[0011] As an improvement of the above technical solution, the shape of the limiting plate is rectangular. A rectangular through hole for the limiting plate to insert into the inner slot is formed inside the fixing plate.

[0012] As an improvement of the above technical solution, the shape of the pull rod is circular. Anti-slip lines are arranged on the outer wall of the pull rod.

[0013] The present invention also adopts the following technical solution: A use method of a modular high and low voltage power distribution cabinet, including the following steps: Step 1. The power distribution cabinet body is connected to the limit mechanism through the support components on both sides. The roller on the support rod is embedded in the inner groove of the limit mechanism. The limit plate is pressed by the reset spring to ensure that the roller slides stably in the inner groove to prevent accidental disengagement. The bottom of the power distribution cabinet is supported by the transport flatbed truck to form a fixed state. Step 2: Press the external switch on the outer wall of the base to start the drive motor. The drive motor drives the screw to rotate, and the nut sleeve rises vertically along the screw, pushing the movable plate to move up synchronously. The movable plate slides along the guide rod through the sliding sleeve to ensure the stability of the lifting process, driving the limit mechanism to lift as a whole, and the power distribution cabinet body rises to a suitable height from the ground along with the support assembly, and the drive motor is turned off to complete the suspension of the power distribution cabinet; Step 3: Clean or maintain the bottom and floor of the power distribution cabinet. After completion, start the drive motor again to reverse, the nut sleeve drives the movable plate to descend, and the power distribution cabinet body slowly falls back to the original position of the transport cart; Step 4. Remove the power distribution cabinet to the transport cart. Lift the power distribution cabinet to a sufficient height through the adjustment mechanism to ensure that the transport cart can be inserted between the two sets of bases. Pull the pull rod at the top of the limit mechanism upwards. The pull rod drives the movable rod to move upwards. The slider slides along the slide groove, compresses the reset spring, and the limit plate withdraws from the rectangular through hole of the inner groove. The limit on the roller is released, and the transport cart is pushed to the bottom of the power distribution cabinet. Push the power distribution cabinet body forward, and the roller slides along the inner groove until it is completely separated from the fixed plate. The power distribution cabinet falls smoothly onto the transport cart. Step 5. Install the power distribution cabinet to the adjustment mechanism, push the transport cart between the two sets of bases, align the inner groove of the limit mechanism, push the power distribution cabinet body backward, the roller slides into the inner groove, release the pull rod, the reset spring rebounds, drives the limit plate to reinsert the inner groove, lock the roller, and adjust the power distribution cabinet to the working height through the adjustment mechanism; Step 6: Transport the distribution cabinet as a whole. The transport cart carries the distribution cabinet body and moves it to the target location. It is necessary to ensure that the rollers are separated from the inner groove during transportation to avoid stress on the limit mechanism.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The gap at the bottom of the traditional distribution cabinet is small, which makes it easy for dust and impurities to accumulate here, affecting the heat dissipation of the equipment in the cabinet. The design of this device can raise the bottom of the distribution cabinet body through the coordination of the adjustment mechanism and the support component, providing sufficient space for the staff to use conventional cleaning tools for thorough cleaning. The raised bottom space eliminates the limitation of the narrow gap, making the air circulation smoother, which helps to remove dust and other impurities, thereby reducing the problem of dust accumulation and heat accumulation.

[0015] 2. The device is designed such that the bottom of the power distribution cabinet body can be easily lifted and lowered. Workers can easily disassemble the power distribution cabinet from the limiting mechanism or install it onto the transport trolley, avoiding the cumbersome steps in the traditional disassembly and installation processes. By means of the adjusting mechanism, the bottom end of the power distribution cabinet is raised. Workers only need to operate the pull rod to drive the movable rod and the limiting plate to move, and then they can easily disassemble or install the power distribution cabinet. This design greatly improves the efficiency of disassembly and installation, saving manpower and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a three-dimensional moving state structural schematic diagram of the present invention; Figure 3 is of the present invention Figure 2 enlarged three-dimensional structural schematic diagram of part A; Figure 4 is a three-dimensional exploded structural schematic diagram of the adjusting mechanism of the present invention; Figure 5 is a three-dimensional state schematic diagram of the structural limiting mechanism of the present invention; Figure 6 is a side view sectional schematic diagram of the partial structure of the limiting mechanism of the present invention.

[0017] In the figure: 1, power distribution cabinet body; 2, support assembly; 21, support rod; 22, roller; 3, adjusting mechanism; 31, base; 32, drive motor; 33, lead screw; 34, nut sleeve; 35, guide rod; 36, sliding sleeve; 37, moving plate; 38, first slot; 39, second slot; 4, limiting mechanism; 41, fixing plate; 42, inner groove; 43, mounting plate; 44, chute; 45, slider; 46, movable rod; 47, limiting plate; 48, return spring; 49, pull rod; 5, transport trolley. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment: As Figures 1-6As shown in the figure, this embodiment proposes a modular high and low voltage power distribution cabinet, which includes a power distribution cabinet body 1. Support components 2 are installed on both side walls of the power distribution cabinet body 1. The support components 2 are slidably connected in a limiting mechanism 4. The limiting mechanism 4 is installed on an adjusting mechanism 3. Two groups of adjusting mechanisms 3 are symmetrically arranged. The bottom end of the power distribution cabinet body 1 is placed on a transport trolley 5 for transportation. The support component 2 includes several groups of support rods 21 fixed on the side wall of the power distribution cabinet body 1. Rolling wheels 22 are rotatably connected to the support rods 21. The rolling wheels 22 and the support rods 21 are movably connected in the limiting mechanism 4; The adjusting mechanism 3 includes bases 31 symmetrically arranged on both sides of the power distribution cabinet body 1. A driving motor 32 is arranged in the base 31. The output end of the driving motor 32 is connected to a lead screw 33. A nut sleeve 34 is threadedly connected to the lead screw 33. A guide rod 35 is connected in the base 31. A sliding sleeve 36 is sleeved on the guide rod 35. A moving plate 37 is sleeved on the nut sleeve 34 and the sliding sleeve 36. A first slot 38 and a second slot 39 for inserting the nut sleeve 34 and the sliding sleeve 36 are formed in the moving plate 37; When the staff needs to clean the bottom end of the power distribution cabinet body 1, they only need to press the external switch on the base 31 to start the driving motor 32. The driving motor 32 drives the lead screw 33 to rotate, so that the nut sleeve 34 moves upward on the lead screw 33. The nut sleeve 34 drives the moving plate 37 to move upward synchronously. Both sides of the moving plate 37 stably slide on the guide rod 35 through the sliding sleeve 36. The moving plate 37 thus drives the limiting mechanism 4 to move upward. Then, through the support component 2, the connected power distribution cabinet body 1 is driven to move upward. After the power distribution cabinet body 1 moves upward an appropriate distance, the bottom ground can be cleaned; It should be noted that an external switch is arranged on the outer wall of the base 31. The external switch is installed on the outer wall of the base, which is convenient for the staff to directly control the driving motor without entering the cabinet body or complex wiring, reducing the operation difficulty. The output end of the external switch is electrically connected to the input end of the driving motor 32 through a wire; Two groups of guide rods 35 are symmetrically arranged in the base 31. The lead screw 33 is rotatably connected to the base 31. The base 31 and the two groups of guide rods 35 are on the same straight line. The two symmetrically arranged guide rods cooperate with the lead screw to balance the force on the moving plate 37, prevent it from tilting or shifting during the lifting process, and ensure the stable lifting of the power distribution cabinet body. The lead screw is rotatably connected to the base, reducing the rotation resistance, improving the transmission efficiency of the driving motor, and reducing energy consumption. The limiting mechanism 4 is installed on the outer wall of the moving plate 37.

[0020] The limiting mechanism 4 includes a fixed plate 41 fixedly mounted on the inner outer wall of the movable plate 37, an inner groove 42 is provided in the fixed plate 41, a roller 22 is slidably connected in the inner groove 42, a mounting plate 43 is provided at the top of the fixed plate 41, a slide groove 44 is provided in the mounting plate 43, a slider 45 is slidably connected in the slide groove 44, the inner end of the slider 45 is fixed to a movable rod 46, the movable rod 46 is inserted in the mounting plate 43, a return spring 48 is wound around the outer wall of the movable rod 46, the bottom end of the movable rod 46 is connected to a limiting plate 47, the bottom end of the limiting plate 47 passes through the fixed plate 41 to the inner groove 42, and the top end of the movable rod 46 is connected to a pull rod 49; When the staff needs to remove the distribution cabinet body 1 from the limiting mechanism 4, they first raise the distribution cabinet body 1 to a height sufficient to insert the transport cart 5 between the two groups of bases 31 through the adjusting mechanism 3, and pull the pull rod 49 upwards, so that the pull rod 49 drives the movable rod 46 to move upwards, and the movable rod 46 slides upwards in the slide groove 44 through the slider 45. During the sliding process, the reset spring 48 is squeezed to produce deformation until the movable rod 46 drives the limiting plate 47 to be pulled upward from the inner groove 42, so that the limiting plate 47 moves into the mounting plate 43. At this time, the front end of the inner groove 42 is in a state of releasing the limit, and then the transport cart 5 is inserted between the two groups of bases 31. After the bottom end of the distribution cabinet body 1 is located on the transport cart 5, the distribution cabinet body 1 is pushed forward, so that the distribution cabinet body 1 slides forward in the inner groove 42 through the rollers 22, so that the distribution cabinet body 1 slides out of the inner groove 42 through the rollers 22 and falls on the transport cart 5 for placement. The disassembly and installation are convenient and quick, saving time and effort.

[0021] It is worth noting that the shape of the inner groove 42 is set to be convex, and the inner sliding connection of the inner groove 42 is provided with the roller 22 and the support rod 21. The convex inner groove provides a precise sliding track for the roller and the support rod to prevent them from lateral deviation, thereby ensuring that the distribution cabinet body maintains a stable posture during the movement; One end of the return spring 48 is connected to the outer wall of the slider 45, and the other end of the return spring 48 is connected to the inner wall of the mounting plate 43. When the pull rod 49 is released, the elastic force of the return spring can quickly return the movable rod 46 and the limit plate 47 without manual intervention, thereby improving the operating efficiency. The shape of the limiting plate 47 is set to be rectangular, and a rectangular through hole is provided in the fixing plate 41 for the limiting plate 47 to be inserted into the inner groove 42. The cooperation between the rectangular limiting plate and the rectangular through hole can provide reliable lateral limiting to prevent the roller or the support rod from coming out of the inner groove 42, thereby ensuring the stability of the power distribution cabinet body in a fixed state; The pull rod 49 is shaped like a ring, and the outer wall of the pull rod 49 is provided with anti-slip patterns. The ring-shaped pull rod is convenient for operators to hold, especially when a larger pulling force is required, the ring structure can evenly disperse the hand strength and reduce fatigue.

[0022] A method of using a modular high and low voltage distribution cabinet is as follows: Step 1, the power distribution cabinet body 1 is connected to the limit mechanism 4 through the support components 2 on both sides, the roller 22 on the support rod 21 is embedded in the inner groove 42 of the limit mechanism 4, and the limit plate 47 is pressed by the return spring 48 to ensure that the roller 22 slides stably in the inner groove 42 to prevent accidental escape, and the bottom of the power distribution cabinet is supported by the transport flatbed 5 to form a fixed state; Step 2, press the external switch on the outer wall of the base 31 to start the drive motor 32, the drive motor 32 drives the screw rod 33 to rotate, the nut sleeve 34 rises vertically along the screw rod 33, and pushes the movable plate 37 to move up synchronously, the movable plate 37 slides along the guide rod 35 through the sliding sleeve 36 to ensure the stability of the lifting process, and drives the limit mechanism 4 to lift as a whole, the distribution cabinet body 1 rises to a suitable height from the ground along with the support assembly 2, and the drive motor 32 is turned off to complete the suspension of the distribution cabinet; Step 3: Clean or maintain the bottom and floor of the power distribution cabinet. After completion, start the drive motor 32 again to reverse, the nut sleeve 34 drives the moving plate 37 to descend, and the power distribution cabinet body 1 slowly falls back to the original position of the transport cart 5; Step 4, disassemble the power distribution cabinet to the transport cart 5, lift the power distribution cabinet to a sufficient height through the adjustment mechanism 3 to ensure that the transport cart 5 can be inserted between the two sets of bases 31, pull the pull rod 49 at the top of the limiting mechanism 4 upward, the pull rod 49 drives the movable rod 46 to move upward, the slider 45 slides along the slide groove 44, compresses the reset spring 48, and the limit plate 47 withdraws from the rectangular through hole of the inner groove 42, releases the limit on the roller 22, pushes the transport cart 5 to the bottom of the power distribution cabinet, pushes the power distribution cabinet body 1 forward, the roller 22 slides along the inner groove 42 until it is completely separated from the fixed plate 41, and the power distribution cabinet falls smoothly onto the transport cart 5; Step 5, install the power distribution cabinet to the adjustment mechanism 3, push the transport cart 5 between the two sets of bases 31, align the inner groove 42 of the limit mechanism 4, push the power distribution cabinet body 1 backward, the roller 22 slides into the inner groove 42, release the pull rod 49, the reset spring 48 rebounds, drives the limit plate 47 to reinsert the inner groove 42, locks the roller 22, and adjusts the power distribution cabinet to the working height through the adjustment mechanism 3; Step 6: The distribution cabinet is transported as a whole. The transport cart 5 carries the distribution cabinet body 1 and moves it to the target position. It is necessary to ensure that the rollers 22 are separated from the inner groove 42 during transportation to prevent the limiting mechanism 4 from being subjected to force.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modular high and low voltage distribution cabinet, characterized in that: It comprises a power distribution cabinet body (1), support assemblies (2) are installed on both side walls of the power distribution cabinet body (1), the support assemblies (2) are slidably connected in a limiting mechanism (4), the limiting mechanism (4) is installed on an adjustment mechanism (3), the adjustment mechanism (3) is symmetrically arranged in two groups, and the bottom end of the power distribution cabinet body (1) is placed on a transport flatbed truck (5) for transportation; The support assembly (2) comprises a plurality of groups of support rods (21) fixed on the side wall of the power distribution cabinet body (1), each of the support rods (21) being rotatably connected to a roller (22), and the roller (22) and the support rods (21) being movably connected in a limiting mechanism (4).

2. A modular high and low voltage distribution cabinet according to claim 1, characterized in that: The adjustment mechanism (3) comprises a base (31) symmetrically arranged on both sides of the power distribution cabinet body (1); a drive motor (32) is arranged in the base (31); an output end of the drive motor (32) is connected to a screw rod (33); a nut sleeve (34) is threadedly connected to the screw rod (33); a guide rod (35) is connected in the base (31); a sliding sleeve (36) is sleeved on the guide rod (35); a movable plate (37) is sleeved on the nut sleeve (34) and the sliding sleeve (36); a first slot (38) and a second slot (39) are provided in the movable plate (37) and are plugged with the nut sleeve (34) and the sliding sleeve (36).

3. A modular high and low voltage distribution cabinet according to claim 2, characterized in that: An external switch is provided on the outer wall of the base (31), and an output end of the external switch is electrically connected to an input end of a drive motor (32) via a wire.

4. A modular high and low voltage distribution cabinet according to claim 2, characterized in that: Two groups of guide rods (35) are symmetrically arranged in the base (31); the screw rod (33) is rotatably connected to the base (31); the base (31) and the two groups of guide rods (35) are on the same straight line; and a limiting mechanism (4) is installed on the outer wall of the movable plate (37).

5. A modular high and low voltage distribution cabinet according to claim 4, characterized in that: The limiting mechanism (4) comprises a fixed plate (41) fixedly mounted on the inner outer wall of the movable plate (37), an inner groove (42) being provided in the fixed plate (41), a roller (22) being slidably connected in the inner groove (42), a mounting plate (43) being provided at the top end of the fixed plate (41), a sliding groove (44) being provided in the mounting plate (43), a slider (45) being slidably connected in the sliding groove (44), an inner end of the slider (45) being fixed to a movable rod (46), the movable rod (46) being inserted in the mounting plate (43), a return spring (48) being wound around the outer wall of the movable rod (46), a bottom end of the movable rod (46) being connected to a limiting plate (47), a bottom end of the limiting plate (47) passing through the fixed plate (41) to the inner groove (42), and a pull rod (49) being connected to the top end of the movable rod (46).

6. A modular high and low voltage distribution cabinet according to claim 5, characterized in that: The shape of the inner groove (42) is set to be convex, and the inner part of the inner groove (42) is slidably connected with a roller (22) and a support rod (21).

7. A modular high and low voltage distribution cabinet according to claim 5, characterized in that: One end of the return spring (48) is connected to the outer wall of the slider (45), and the other end of the return spring (48) is connected to the inner wall of the mounting plate (43).

8. A modular high and low voltage distribution cabinet according to claim 5, characterized in that: The shape of the limiting plate (47) is set to be rectangular, and a rectangular through hole is provided in the fixing plate (41) for inserting the limiting plate (47) into the inner groove (42).

9. A modular high and low voltage distribution cabinet according to claim 5, characterized in that: The pull rod (49) is arranged in a circular ring shape, and an outer wall of the pull rod (49) is provided with anti-slip patterns.

10. A method for using a modular high and low voltage distribution cabinet according to any one of claims 1 to 9, characterized in that: Step 1: The power distribution cabinet body (1) is connected to the limit mechanism (4) through the support components (2) on both sides, the roller (22) on the support rod (21) is embedded in the inner groove (42) of the limit mechanism (4), and the limit plate (47) is pressed by the return spring (48) to ensure that the roller (22) slides stably in the inner groove (42) to prevent accidental escape, and the bottom of the power distribution cabinet is supported by the transport cart (5) to form a fixed state; Step 2, press the external switch on the outer wall of the base (31) to start the drive motor (32), the drive motor (32) drives the screw rod (33) to rotate, the nut sleeve (34) rises vertically along the screw rod (33), and pushes the movable plate (37) to move upward synchronously, the movable plate (37) slides along the guide rod (35) through the sliding sleeve (36), ensuring the stability of the lifting process, driving the limit mechanism (4) to lift as a whole, the distribution cabinet body (1) rises to a suitable height from the ground along with the support assembly (2), and the drive motor (32) is turned off, and the distribution cabinet is suspended; Step 3: Clean or maintain the bottom and floor of the power distribution cabinet. After completion, start the drive motor (32) again to reverse, the nut sleeve (34) drives the movable plate (37) to descend, and the power distribution cabinet body (1) slowly falls back to the original position of the transport cart (5); Step 4, disassemble the power distribution cabinet onto the transport cart (5), lift the power distribution cabinet to a sufficient height through the adjustment mechanism (3) to ensure that the transport cart (5) can be inserted between the two sets of bases (31), pull the pull rod (49) at the top of the limit mechanism (4) upward, the pull rod (49) drives the movable rod (46) to move upward, the slider (45) slides along the slide groove (44), compresses the return spring (48), the limit plate (47) withdraws from the rectangular through hole of the inner groove (42), releases the limit on the roller (22), pushes the transport cart (5) to the bottom of the power distribution cabinet, pushes the power distribution cabinet body (1) forward, the roller (22) slides along the inner groove (42) until it is completely separated from the fixed plate (41), and the power distribution cabinet falls smoothly onto the transport cart (5); Step 5, install the power distribution cabinet to the adjustment mechanism (3), push the transport cart (5) between the two sets of bases (31), align the inner groove (42) of the limit mechanism (4), push the power distribution cabinet body (1) backward, the roller (22) slides into the inner groove (42), release the pull rod (49), the reset spring (48) rebounds, drives the limit plate (47) to reinsert into the inner groove (42), locks the roller (22), and adjusts the power distribution cabinet to the working height through the adjustment mechanism (3); Step 6: The distribution cabinet is transported as a whole. The transport cart (5) carries the distribution cabinet body (1) and moves it to the target position. It is necessary to ensure that the rollers (22) are separated from the inner groove (42) during transportation to avoid stress on the limit mechanism (4).

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