A power distribution cabinet facilitating maintenance

Abstract

The application discloses a power distribution cabinet convenient to overhaul, and relates to the technical field of large-scale power grid safety guarantee, which comprises a cabinet body, a plurality of drawer units, two air pumps fixedly installed on the cabinet body, a plurality of positioning racks fixedly installed on the inner wall of the cabinet body, a plurality of rollers fixedly installed on the drawer units and slidably installed on the corresponding positioning racks, a lifting assembly arranged in the cabinet body, a driving assembly arranged between the rollers, and a cleaning assembly arranged between the drawer units. The power distribution cabinet has the advantages that the drawer units can be moved to a specified height according to the needs of the overhaul personnel through the cooperation of the lifting assembly and the driving assembly, which helps to improve the convenience of the overhaul personnel in overhaul, and the cleaning assembly can realize the cleaning of the inside of the drawer units through the combination of suction and pumping, which helps to further improve the effect and efficiency of the overhaul personnel in overhaul.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of large-scale power grid security, and particularly relates to a power distribution cabinet convenient to overhaul. BACKGROUND

[0002] In the power supply scene of large-scale power grid security and defense system, a power distribution cabinet is equipped to realize reasonable distribution and precise control of power, which can effectively improve the safety, reliability and flexibility of the power system. With the continuous development and improvement of power distribution cabinet technology, in order to further enhance the use flexibility and improve the overhaul convenience, a power distribution cabinet with multiple functional drawers emerges as the times require. The functional drawers of the Schneider Blokset power distribution cabinet can be individually plugged, replaced and overhauled, greatly facilitating the operation and maintenance work. Therefore, such power distribution cabinets are gradually widely used in various fields.

[0003] However, the overall height of the existing power distribution cabinet with multiple functional drawers is usually about 2200mm. When the staff needs to overhaul the functional drawers at the upper end of the equipment, they often need to use climbing auxiliary tools. When the staff needs to overhaul the functional drawers at the lower end of the equipment, they need to frequently or for a long time maintain the posture of bending or squatting, which increases the inconvenience of the staff's overhaul work. Therefore, we propose a power distribution cabinet convenient to overhaul to solve the above problems. SUMMARY

[0004] The purpose of the present application is to solve the problems raised in the background art, and a power distribution cabinet convenient to overhaul is proposed.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0006] A power distribution cabinet convenient to overhaul, comprising a cabinet body, a plurality of drawer units, two air pumps are fixedly installed on the cabinet body, a plurality of positioning frames are fixedly installed on the inner wall of the cabinet body, a plurality of rollers are fixedly installed on the drawer units, and the rollers are slidingly installed on the corresponding positioning frames, a lifting assembly is arranged in the cabinet body, a driving assembly is arranged between the rollers, and a cleaning assembly is arranged between the drawer units.

[0007] The lifting assembly comprises two boxes fixedly installed on the bottom wall in the cabinet body, a lead screw is rotatably installed on each of the two boxes, a force transmission part is arranged between the two lead screws and the two air pumps, a sliding block is installed on each of the two lead screws through a ball nut, a bearing frame is fixedly installed on each of the two sliding blocks, and a lifting part is arranged between the two bearing frames.

[0008] The driving assembly includes a plurality of roller shafts rotatably mounted on the drawer units respectively, and the roller shafts are all sealed and penetrated and rotatably mounted on the corresponding rollers, a driving mechanism is installed between the roller shafts and the rollers, and a positioning mechanism is installed between the roller shafts.

[0009] Compared with the existing technology, the advantages of the present invention are:

[0010] 1: The present invention controls the size of the operating power of the air pump and the coordination of the lifting assembly and the driving assembly, thereby achieving the effect of driving the carrier to move the drawer unit up and down according to the maintenance needs of the maintenance staff, which helps to improve the convenience of the staff in repairing the drawer unit. In addition, when the staff is repairing the drawer unit, the coordination of the positioning mechanism and the lifting component can help to improve the stability of the drawer unit position, which helps to improve the maintenance effect of the drawer unit by the staff to a certain extent.

[0011] 2: The present invention can automatically drive the drawer unit to be removed and reset as needed through the cooperation of the air pump, the drive component and the adjustment component, which helps to further improve the convenience of maintenance staff in its maintenance, and at the same time can also improve the safety of maintenance staff to a certain extent.

[0012] 3: In the process of the present invention driving the drawer unit to move by gas, the cleaning component can improve the cleanliness of the inside of the drawer unit by combining blowing cleaning on one side and vacuuming cleaning on the other side, which helps to further improve the convenience of maintenance personnel in internal maintenance. While improving the maintenance effect, it can also increase the life of the electronic components inside the drawer unit to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a power distribution cabinet that is easy to maintain, as proposed by the present invention;

[0014] Figure 2 for Figure 1 Schematic diagram of the structure of the internal components of the cabinet;

[0015] Figure 3 for Figure 2 Schematic diagram of the structure of the middle lifting component;

[0016] Figure 4 for Figure 3 Schematic diagram of the connection structure between the middle box and the supporting frame;

[0017] Figure 5 for Figure 4 Schematic cross-sectional view of the middle box;

[0018] Figure 6 for Figure 5Structure diagram of the structure after rotating a certain angle and removing the air pump;

[0019] Figure 7 For Figure 2 Structure diagram of the structure of the middle cabinet body;

[0020] Figure 8 For Figure 3 Structure diagram of the structure after rotating a certain angle;

[0021] Figure 9 For Figure 2 Structure diagram of the structure of the driving assembly in the middle;

[0022] Figure 10 For Figure 9 Structure diagram of the structure of the bearing frame and the positioning frame in the middle;

[0023] Figure 11 For Figure 10 Structure diagram of the structure of the bearing frame and the positioning frame in the middle;

[0024] Figure 12 For Figure 10 Structure diagram of the structure of the driving mechanism in the middle;

[0025] Figure 13 For Figure 12 Structure diagram of the structure of the roller in the middle;

[0026] Figure 14 For Figure 13 Structure diagram of the structure after rotating a certain angle;

[0027] Figure 15 For Figure 13 Structure diagram of the structure of the positioning mechanism in the middle;

[0028] Figure 16 For Figure 14 Structure diagram of the connection between the roller shaft and the rotating shaft in the middle

[0029] Figure 17 For Figure 16 Structure diagram of the structure of the adjusting assembly in the middle;

[0030] Figure 18 For Figure 9 Structure diagram of the structure of the drawer unit in the middle;

[0031] Figure 19 For Figure 18 Structure diagram of the structure of the cleaning assembly in the middle;

[0032] Figure 20 For Figure 19 Structure diagram of the structure of the A part in the middle.

[0033] In the figure:

[0034] 1, cabinet; 2, air pump; 3, mounting frame; 4, drawer unit;

[0035] 5, lifting assembly; 51, box; 52, screw rod; 53, sliding block; 54, bearing frame; 55, support plate; 56, fan blade; 57, guide pipe; 58, air delivery pipe; 59, air blowing pipe; 510, spring valve; 511, air gathering groove; 512, elastic module; 513, support frame; 514, air injection pipe;

[0036] 6, drive assembly; 61, pipe body one; 62, hose; 63, air injection pipe; 64, air supply pipe; 65, elastic pipe; 66, pipe body two; 67, roller shaft; 68, air guide baffle; 69, elastic baffle; 610, protrusion one; 611, fixed frame; 612, torsion spring; 613, friction plate; 614, rotating shaft; 615, air turbine; 616, straight gear; 617, rotating gear one; 618, rotating gear two;

[0037] 7, roller;

[0038] 8, adjustment assembly; 81, pusher; 82, round roller; 83, protrusion two; 84, protrusion three;

[0039] 9, cleaning assembly; 91, air exhaust pipe; 92, air injection pipe; 93, air gathering pipe; 94, flow guide pipe; 95, one-way air suction pipe; 96, connecting pipe;

[0040] 10, positioning frame. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0042] REFERENCE Figures 1-20 A power distribution cabinet convenient to overhaul includes a cabinet 1, a plurality of drawer units 4, a mounting frame 3 fixedly installed in the cabinet 1, two air pumps 2 fixedly installed on the cabinet 1, a plurality of positioning frames 10 fixedly installed on the inner wall of the cabinet 1, a plurality of rollers 7 fixedly installed on the drawer units 4, the rollers 7 being slidably installed on the corresponding positioning frames 10, a lifting assembly 5 arranged in the cabinet 1, a drive assembly 6 arranged between the rollers 7, and a cleaning assembly 9 arranged between the drawer units 4.

[0043] When the device needs to run, the drawer unit 4 is inserted into the designated position, and the cabinet 1 is started, so that the power supply of the drawer unit 4 is realized through the cooperation of the main bus and the branch bus in the cabinet 1 (this part is a mechanical structure, which is not shown in the drawings), and when the drawer unit 4 starts to run, the various functional units are connected with the external power equipment through the cable, so that the power supply of other facilities is realized, and when the drawer unit 4 needs to be repaired, the cabinet 1 is first powered off, and then the drawer unit 4 is removed in turn for separate repair (the drawer unit 4 cooperates with the cabinet 1 to realize power distribution, which is similar to the working principle of the existing "Schneider Blokset power distribution cabinet").

[0044] In the initial state, the multiple plate bodies provided on the mounting frame 3 can support the bottoms of the multiple drawer units 4 (as can be seen from Figure 2 ), and the cooperation of the relative two positioning frames 10 and the corresponding multiple rollers 7 and positioning mechanisms can realize the positioning of the drawer units 4, which helps to improve the stability of the drawer units 4 during static operation or storage.

[0045] Referring to Figures 1-10 , the lifting assembly 5 includes two boxes 51 fixedly installed on the inner bottom wall of the cabinet 1, two lead screws 52 are rotatably installed on the two boxes 51, a force transmission component is commonly installed between the two lead screws 52 and the two air pumps 2, a sliding block 53 is installed on each of the two lead screws 52 through a ball nut, a bearing frame 54 is fixedly installed on each of the two sliding blocks 53, and a lifting component is commonly installed between the two bearing frames 54.

[0046] The force transmission component includes two air supply pipes 58 fixedly installed on the inner walls of the two boxes 51, an electric valve one (drawn but not labeled in the figure, as can be seen from Figure 6 ) is installed on each of the two air supply pipes 58, a conduit 57 is fixedly and communicatively connected between each of the two air supply pipes 58 and the corresponding air pump 2, a partition plate (drawn but not labeled in the figure, as can be seen from Figure 6 ) is fixedly installed in each of the two boxes 51, two air blowing pipes 59 are sealingly and fixedly installed on each of the two partition plates, a spring valve 510 is installed in each of the air blowing pipes 59, and a fan blade 56 evenly distributed in a ring is fixedly installed on each of the two lead screws 52.

[0047] The existing power distribution cabinet has multiple functional drawers (i.e., drawer units 4), most of which are vertically distributed and have a height of usually 2200 mm. When the staff needs to inspect the functional drawers at the upper end of the existing power distribution cabinet, they often need to use auxiliary tools (such as stools, etc.) to pull them out. In this process, if the angle of the manually applied pulling force is incorrect, it is easy to increase the wear of the equipment and reduce the service life of the equipment. At the same time, when the staff needs to inspect the functional drawers at the lower end of the existing power distribution cabinet, they usually need to bend back and forth or squat for a long time, which can easily increase the muscle fatigue and injury of the staff. Therefore, when the maintenance personnel inspect the functional drawers at the upper and lower ends of the existing power distribution cabinet, there are cumbersome and inconvenient operations.

[0048] like Figure 6 In the direction shown, the open and closed states of the two spring valves 510 are set in opposite states, that is, in the initial state, the left spring valve 510 is in the open state and the right spring valve 510 is in the closed state. When the operating power of the air pump 2 is relatively low, when air is supplied to the corresponding two blowing pipes 59 by cooperating with the guide tube 57 and the air supply pipe 58, the impact force generated by the smaller wind force at this time is difficult to cause sufficient deformation of the corresponding two spring valves 510, that is, at this time, the left and right spring valves 510 are still in the initial state, and the gas output by the air supply pipe 58 will be blown out by the left blowing pipe 59.

[0049] On the contrary, if the operating power of the air pump 2 is large and the impact force generated by the gas blown out from the corresponding air duct 58 is large, the airflow can compress the corresponding two spring valves 510, so that the left spring valve 510 is closed and the right spring valve 510 is opened. At this time, the gas blown out from the air duct 58 will be blown out from the right blowing pipe 59. At the same time, when the air pump 2 stops running, the corresponding two spring valves 510 will move to their original position under the action of their own elastic force.

[0050] If the staff needs to inspect the drawer unit 4 at the upper end of the cabinet 1, they first drive the two air pumps 2 to run at a lower power and start the two electric valves 1 (the electric valves 2 on the two pipe bodies 1 61 are in the closed state at this time). At this time, air can be supplied to the corresponding two blowing pipes 59 through the corresponding conduits 57 and the air supply pipes 58. However, since the impact force generated by the air flow is relatively small at this time, according to the above principle, the gas will be blown from the left blowing pipe 59 to the multiple fan blades 56. When the left blowing pipe 59 blows air evenly to the corresponding multiple fan blades 56, the corresponding multiple fan blades 56 will cooperate to drive the corresponding screw rods 52 to Figure 6 In the direction shown, the two screw rods 52 rotate counterclockwise, and the two carriers 54 can be driven to move upward (as shown in FIG. Figure 4 direction shown).

[0051] When the two carriers 54 move to the position where the drawer unit 4 to be repaired is exactly opposite to the two positioning frames 10, the operation of the two air pumps 2 is stopped first, and then the drive assembly 6 is used to drive the drawer unit 4 to be repaired to automatically move to the upper end of the two carriers 54. After it stops, the two air pumps 2 are restarted. At this time, the two air pumps 2 need to run at a higher power. At this time, according to the above principle, only the right blowing pipe 59 will be driven to blow air to the corresponding multiple fan blades 56. At this time, the corresponding multiple fan blades 56 will cooperate with the drive of the corresponding screw rod 52 to change the blowing direction. Figure 6 In the direction shown, the two screw rods 52 rotate clockwise, and the two supporting frames 54 and the support plate 55 can cooperate to drive the drawer unit 4 to be repaired to move downward (as shown in FIG. Figure 9 until the drawer unit 4 moves down to a height convenient for maintenance by the staff.

[0052] At the same time, when the staff needs to inspect the drawer unit 4 at the lower end, the above-mentioned operating principle can be used to first drive the two carriers 54 downward, and then drive the two carriers 54 upward to move the drawer unit 4 to a suitable height. This can facilitate the adjustment of the height of the drawer unit 4 according to the needs of the staff, which helps to improve the convenience of the staff in inspecting the drawer unit 4 in the equipment.

[0053] Reference Figures 1-10 The lifting component includes a support plate 55 fixedly installed between two supporting frames 54. Two wind collecting grooves 511 are provided on the cabinet 1. Elastic molds 512 are fixedly installed on the two wind collecting grooves 511. Support frames 513 are sealed and slidably installed in the two wind collecting grooves 511. The two support frames 513 are sealed and penetrated and fixedly installed on the corresponding elastic molds 512. The two support frames 513 are fixedly connected to the corresponding supporting frames 54. There are two air injection pipes 514 fixedly connected between the two boxes 51 and the corresponding wind collecting grooves 511.

[0054] When the air pump 2 is running, the air is blown through the corresponding left or right blowpipe 59 (such as Figure 6 During the process of blowing air above the partition, that is, the upper end of the box body 51 (in the direction shown), the gas inside the box body 51 will gradually increase. At this time, the excess gas will flow into the corresponding wind gathering groove 511 along the corresponding two air injection pipes 514.

[0055] When the two carriers 54 are forced to move up and down, they will drive the corresponding support frames 513 to move together (the two elastic molds 512 can seal the corresponding wind collecting grooves 511, and when the support frames 513 are forced to move up and down, they can be compressed and stretched by the elasticity of the corresponding elastic molds 512). When the gas inside the wind collecting grooves 511, that is, the gas at the lower ends of the two support frames 513, gradually increases (such as Figure 7When the gas in the two wind collecting grooves 511 continuously increases (for example, when the drawer unit 4 is moved to the appropriate height, as shown by the arrow), the gas can generate an upward lifting force on the corresponding bearing frame 54 through the two support frames 513, which can help to improve the stability of the two bearing frames 54 and the support plate 55 during the cooperation of the two bearing frames 54 and the support plate 55 in moving the drawer unit 4 to the appropriate height, and the maintenance effect of the maintenance personnel on the drawer unit 4.

[0056] In addition, the indirect support of the two bearing frames 54 and the drawer unit 4 thereon by the gas can also reduce the mechanical wear between the corresponding sliding block 53 and the lead screw 52 of the bearing frame 54 due to the increase in the weight of the bearing frame 54, which can help to improve the service life of the equipment to a certain extent.

[0057] Meanwhile, the two wind collecting grooves 511 are fixedly connected with exhaust pipes, and the two exhaust pipes are provided with pressure relief valves (not shown in the figure). When the gas in the two wind collecting grooves 511 continuously increases (for example, when the drawer unit 4 is moved to the appropriate height, as shown by the arrow), the two pressure relief valves are opened automatically when the pressure relief value is reached (which can be set according to the needs of the user), which can prevent a series of safety accidents caused by the continuous increase of the gas in the two wind collecting grooves 511, and prevent the subsequent displacement of the corresponding bearing frame 54 caused by the excessive amount of gas at the lower end of the two support frames 513. Figure 7

[0058] Referring to Figure 4 , Figure 6 , Figures 9-17 The driving assembly 6 comprises a plurality of roller shafts 67 rotatably installed on the drawer unit 4, and the roller shafts 67 are rotatably installed in the corresponding rollers 7. The driving mechanism is installed between the roller shafts 67 and the rollers 7, and the positioning mechanism is installed between the roller shafts 67.

[0059] The positioning mechanism comprises a round rod fixedly installed on the air guide baffle 68, two fixed frames 611 rotatably installed on the round rod, a friction plate 613 fixedly installed on the fixed frame 611 and matched with the corresponding roller shaft 67, a torsion spring 612 fixedly installed between the two fixed frames 611, and a trigger component installed between the rollers 7.

[0060] The trigger component comprises an elastic baffle 69 fixedly installed on the inner side wall of the roller 7 (as can be seen from Figure 15 The elastic baffles 69 are composed of a plate body and two reset springs), and the elastic baffles 69 are sealingly and slidingly installed in the corresponding air guide baffles 68. The left side of the elastic baffle 69 (as Figure 15 ​The two fixed frames 611 are fixedly installed with protrusions 610 which are matched with the two fixed frames 611.

[0061] As shown in the initial state, the two fixed frames 611 are matched with the two friction plates 613 to clamp and position the corresponding roller shaft 67, so as to indirectly fix the position of the drawer unit 4 through the position fixing of the plurality of roller shafts 67, thereby improving the stability of the position of the drawer unit 4 in the stationary state. Figure 15

[0062] When the drawer unit 4 needs to be repaired, the air pump 2 is matched with the air conveying component to convey air into the corresponding roller 7 through the pipe body 66. The impact force of the air acts on the corresponding elastic baffle 69 (as shown in the arrow direction) and drives the elastic baffle 69 to move the protrusion 610 to the left side (as shown in the arrow direction). Figure 14 Figure 15 The driving force of the protrusion 610 to the left side drives the two fixed frames 611 to rotate outward and expand, so that the two friction plates 613 gradually move away from each other, thereby releasing the corresponding roller shaft 67, so as to drive the roller shaft 67 to drive the corresponding drawer unit 4 to automatically move through the subsequent driving mechanism.

[0063] When the drawer unit 4 is moved to the appropriate position or is reset, the air pump 2 and the driving mechanism stop driving the air into the corresponding roller 7. Under the action of the elastic baffle 69 and the self-elastic force of the corresponding torsion spring 612, the elastic baffle 69 drives the corresponding protrusion 610 to move to the left side (as shown in the arrow direction). The two fixed frames 611 are forced to rotate inward and reset, so that the two friction plates 613 clamp and position the corresponding roller shaft 67. Through the timely positioning of the plurality of roller shafts 67, the stability of the position of the drawer unit 4 in the stationary state is ensured. Figure 15

[0064] Referring to Figure 4 , Figure 6 , Figures 9-17 ​​​The driving mechanism includes an air induced baffle 68 fixedly mounted on the inner wall of the drum 7, a rotating shaft 614 is rotatably mounted in the drum 7, an air turbine 615 is fixedly mounted on the rotating shaft 614, a spur gear 616 is fixedly mounted on the rotating shaft 614, two sliding grooves are provided on the roller shaft 67, a rotating gear 1 617 is slidably mounted between the corresponding two sliding grooves, a rotating gear 2 618 is slidably mounted between the corresponding two sliding grooves, and the rotating gear 2 618 is fixedly connected to the corresponding rotating gear 1 617, and the rotating gear 2 618 and the rotating gear 1 617 are matched with the corresponding spur gear 616, and an air delivery component is installed between the drum 7 and the two ducts 57.

[0065] The air delivery component includes a pipe body 61 fixedly connected to the duct 57, and the two pipe bodies 61 are both passed through and fixedly installed on the cabinet 1. The two pipe bodies 61 are both equipped with an electric valve 2 (not shown in the figure but not marked). Figure 6 As can be seen in the figure), the two carriers 54 are penetrated and fixedly installed with an air injection pipe 63, and the two air injection pipes 63 are fixedly connected to the corresponding pipe body 61 with a hose 62, and the lower ends of the two hoses 62 are fixedly connected to the cabinet 1 (as shown in the figure). Figure 4 In the direction shown, when the supporting frame 54 drives the corresponding air injection pipe 63 to move up and down, the corresponding hose 62 can be compressed or stretched by the elasticity of the corresponding hose 62 itself), the positioning frame 10 is penetrated and fixedly installed with an air supply pipe 64, and the air supply pipe 64 is fixedly connected to two elastic tubes 65, and the roller 7 is fixedly connected to a tube body 2 66 that matches the corresponding elastic tube 65.

[0066] The air outlet port of the air injection pipe 63 is installed with a sealing ring. When the above-mentioned lifting component 5 cooperates with the air pump 2 to drive the two supporting frames 54 to move to a suitable height, the air injection pipe 63 is directly opposite to the corresponding air supply pipe 64, and the air injection pipe 63 and the corresponding air supply pipe 64 ports are in contact with each other. At this time, the sealing ring can effectively improve the sealing of the connection between the two air injection pipes 63 and the corresponding air supply pipes 64, which helps to improve the air tightness when air is subsequently transported to the inside of the corresponding air supply pipe 64 through the air injection pipe 63.

[0067] When the drawer unit 4 needs to be repaired, the lifting assembly 5 cooperates with the air pump 2 to drive the two carriers 54 to move to a suitable height, and the air injection pipe 63 is opposite to the corresponding air supply pipe 64 (such as Figure 12 In the state shown), the two air pumps 2 are started, the electric valve 1 is closed, and the electric valve 2 on the two tube bodies 1 61 is opened. At this time, during the operation of the air pump 2, the inhaled gas will follow the corresponding conduit 57, the tube body 1 61, the hose 62, the air injection pipe 63, enter the corresponding air supply pipe 64, and finally be input into the drum 7 through the cooperation of the corresponding elastic tube 65 and the tube body 2 66.

[0068] The gas entering the inside of the drum 7 will be blown to the corresponding gas turbine 615 under the guidance of the corresponding air guide baffle 68. At this time, the impact force of the gas on the gas turbine 615 can drive the gas turbine 615 to rotate. When the gas turbine 615 rotates under force, it can drive the corresponding rotating shaft 614, the straight gear 616, and the rotating gear one 617 through cooperation (from the initial state, the straight gear 616 is engaged with the corresponding rotating gear one 617). Figure 16 As can be seen from the figure, the initial state is that the straight gear 616 is engaged with the corresponding rotating gear one 617), which drives the roller shaft 67 to rotate and displace to the left side until the corresponding multiple drawer units 4 are completely removed from the corresponding two positioning frames 10, and after the two bearing frames 54 are stopped, the operation of the air pump 2 can be stopped (as shown by the arrow direction. At this time, the air pump 2 needs to operate at a higher power to ensure that the impact force of the gas input into the inside of the drum 7 by the pipe body two 66 can cooperate with the positioning mechanism to release the corresponding roller shaft 67 and drive the roller shaft 67 to roll and displace through cooperation with the driving mechanism). Figure 10 As can be seen from the figure, the elastic tube 65 and the corresponding positioning frame 10 are both fixedly installed with a limiting plate, and the two ends of the elastic tube 65 are both made of hard material, the middle part is made of elastic material, and the corresponding elastic tube 65 and the pipe body two 66 are both connected in a sealing and clamping manner. The purpose is to ensure that when the corresponding multiple gas turbines 615 drive the corresponding drawer units 4 and the multiple drums 7 to displace, the pipe body two 66 can be stretched or compressed through the clamping connection between the corresponding elastic tube 65 and the pipe body two 66, and the stability of the air input into the inside of the corresponding pipe body two 66 by the elastic tube 65.

[0069] As can be seen from the figure, the elastic tube 65 and the corresponding positioning frame 10 are both fixedly installed with a limiting plate, and the two ends of the elastic tube 65 are both made of hard material, the middle part is made of elastic material, and the corresponding elastic tube 65 and the pipe body two 66 are both connected in a sealing and clamping manner. The purpose is to ensure that when the corresponding multiple gas turbines 615 drive the corresponding drawer units 4 and the multiple drums 7 to displace, the pipe body two 66 can be stretched or compressed through the clamping connection between the corresponding elastic tube 65 and the pipe body two 66, and the stability of the air input into the inside of the corresponding pipe body two 66 by the elastic tube 65. Figure 15 As can be seen from the figure, the elastic tube 65 and the corresponding positioning frame 10 are both fixedly installed with a limiting plate, and the two ends of the elastic tube 65 are both made of hard material, the middle part is made of elastic material, and the corresponding elastic tube 65 and the pipe body two 66 are both connected in a sealing and clamping manner. The purpose is to ensure that when the corresponding multiple gas turbines 615 drive the corresponding drawer units 4 and the multiple drums 7 to displace, the pipe body two 66 can be stretched or compressed through the clamping connection between the corresponding elastic tube 65 and the pipe body two 66, and the stability of the air input into the inside of the corresponding pipe body two 66 by the elastic tube 65.

[0070] Figure 15 As can be seen from the figure, the elastic tube 65 and the corresponding positioning frame 10 are both fixedly installed with a limiting plate, and the two ends of the elastic tube 65 are both made of hard material, the middle part is made of elastic material, and the corresponding elastic tube 65 and the pipe body two 66 are both connected in a sealing and clamping manner. The purpose is to ensure that when the corresponding multiple gas turbines 615 drive the corresponding drawer units 4 and the multiple drums 7 to displace, the pipe body two 66 can be stretched or compressed through the clamping connection between the corresponding elastic tube 65 and the pipe body two 66, and the stability of the air input into the inside of the corresponding pipe body two 66 by the elastic tube 65.

[0071] As can be seen from the figure, the elastic tube 65 and the corresponding positioning frame 10 are both fixedly installed with a limiting plate, and the two ends of the elastic tube 65 are both made of hard material, the middle part is made of elastic material, and the corresponding elastic tube 65 and the pipe body two 66 are both connected in a sealing and clamping manner. The purpose is to ensure that when the corresponding multiple gas turbines 615 drive the corresponding drawer units 4 and the multiple drums 7 to displace, the pipe body two 66 can be stretched or compressed through the clamping connection between the corresponding elastic tube 65 and the pipe body two 66, and the stability of the air input into the inside of the corresponding pipe body two 66 by the elastic tube 65. Figures 9-11 Figure 16 Figure 17 ​​​, two bearing frames 54 and positioning frame 10 are jointly provided with an adjusting assembly 8, the adjusting assembly 8 includes a pusher 81 respectively sealed through and slidingly installed on the roller 7, and one end of the pusher 81 is rotationally connected with the corresponding rotating gear two 618, and the other end of the pusher 81 is through and fixedly installed with a round roller 82 (herein, one end and the other end refer to Figure 17 , Figure 17 the position of the air turbine 615 is one end, and the position of the roller shaft 67 is the other end), the positioning frame 10 is fixedly installed with two protrusions two 83, and the two bearing frames 54 are fixedly installed with two protrusions three 84.

[0072] When the drawer unit 4 and the corresponding plurality of rollers 7 are located at the middle position of the corresponding two positioning frames 10, at this time the spur gear 616 is engaged with the corresponding rotating gear one 617, at this time the corresponding air turbine 615 is forced to rotate to drive the corresponding roller shaft 67 to move to the left (as shown by the arrow Figure 17 direction), that is, to drive the roller shaft 67 to drive the corresponding drawer unit 4 to enter the two bearing frames 54, and when the drawer unit 4 is completely removed from the corresponding two positioning frames 10, and the round roller 82 on the corresponding roller 7 gradually approaches the corresponding protrusion three 84, at this time the protrusion three 84 drives the corresponding round roller 82 to move up (as shown by the arrow Figure 17 direction) through the driving force of the upward inclination angle of the protrusion three 84, which can drive the corresponding round roller 82 to move the rotating gear two 618 and the rotating gear one 617 upward, until the rotating gear two 618 is engaged with the corresponding spur gear 616 (the tooth direction of the rotating gear two 618 and the corresponding rotating gear one 617 and the spur gear 616 are opposite).

[0073] When the rotating gear two 618 is engaged with the corresponding spur gear 616, at this time the movement of the corresponding round roller 82 is limited to the left (as shown by the arrow Figure 17 direction) through the protrusion three 84, that is, the positioning of the corresponding drawer unit 4 is realized through the cooperation of the corresponding round roller 82 and the roller 7, and when the drawer unit 4 needs to be moved back to the original position, at this time the drawer unit 4 is moved to the original height through the above operation, and the air turbine 615 is driven to rotate through the cooperation of the air pump 2 and the driving mechanism, at this time the air turbine 615 drives the roller shaft 67 to rotate in the opposite direction through the corresponding spur gear 616 and the rotating gear two 618, one side, which can realize the effect of moving the corresponding plurality of roller shafts 67 to the right (as shown by the arrow Figure 10 direction) to drive the corresponding drawer unit 4 to move back to the right.

[0074] At the same time, when the corresponding multiple roller shafts 67 are driven by force to move the corresponding drawer units 4 to reset, the multiple round rollers 82 thereon gradually approach the corresponding protrusion 83. At this time, the driving force generated by the downward slope of the protrusion 83 itself on the corresponding round roller 82 can drive the round roller 82 to drive the corresponding push frame 81, the rotating gear 2 618, and the rotating gear 1 617 to move downward and reset (as shown in FIG. Figures 18-20 As shown in the direction), until the rotating gear 617 is re-engaged with the corresponding spur gear 616, it is convenient to drive the corresponding roller shaft 67 to drive the corresponding drawer unit 4 to move back and forth through the above operation.

[0075] Reference Figure 18 The cleaning assembly 9 includes exhaust pipes 91 fixedly connected to the drum 7, and a spray pipe 92 is fixedly connected between the two exhaust pipes 91 on one side, and the spray pipes 92 are fixedly installed on the corresponding drawer unit 4. The two exhaust pipes 91 on the other side are fixedly connected with a gathering pipe 93 (one side and the other side are referred to here). Figure 18 , Figure 18 The exhaust duct 91 is located on one side, and the air collecting duct 93 is located on the other side), and the air collecting ducts 93 are fixedly installed on the corresponding drawer units 4. The air collecting ducts 93 are fixedly connected to the guide ducts 94. The guide ducts 94 and the corresponding air injection ducts 92 are fixedly connected with two connecting pipes 96. The guide ducts 94 are fixedly connected to one-way suction ducts 95 that are linearly and evenly distributed.

[0076] Because the existing power distribution cabinet generates a large amount of heat energy during operation, in order to ensure the normal and stable operation of its internal components, it is usually necessary to add a heat dissipation device to the equipment. Although some equipment has added filtering equipment compatible with the heat dissipation device to purify the heat dissipation gas, there will still be a small amount of dust in the air that will adhere to the electronic components stored inside the drawer unit 4, and when the interior of the cabinet 1 is regularly cleaned, external dust will also adhere to the electronic components inside the drawer unit 4. If the dust is not cleaned regularly, it will not only reduce the heat dissipation effect of the electronic components stored inside the drawer unit 4, but also hinder the staff from repairing the inside of the drawer unit 4, reducing the staff's maintenance efficiency and the accuracy of the maintenance judgment.

[0077] When the drawer unit 4 is driven to move by injecting gas into the corresponding plurality of rollers 7 through the above operation, the amount of gas inside the corresponding plurality of rollers 7 will gradually increase. At this time, the two corresponding rollers 7 on the left (such as Figure 19The excess gas inside the drawer unit 4 will enter the blower pipe 92 along the corresponding exhaust pipe 91 and will eventually be ejected from the corresponding blower pipe 92 to blow and clean the inside of the corresponding drawer unit 4, which can help improve the cleanliness of the inside of the drawer unit 4 and help further improve the convenience and efficiency of subsequent maintenance personnel in conducting internal maintenance.

[0078] At the same time, combined Figure 20 and Figure 20 It can be seen that the guide tube 94 is composed of multiple pipes similar to "Venturi tubes", and the multiple pipes are all set to be wide at both ends and narrow in the middle. When the subsequent air collecting pipe 93 enters the inside of the guide tube 94, and the gas flows from the middle to the two ends, such as when the gas inside the guide tube 94 flows to the upper left side (such as Figure 19 As shown in the direction, when the gas flows through the middle part of the pipe, that is, the contraction section, the cross-sectional area of ​​the pipe gradually becomes smaller. At this time, according to the law of conservation of energy, when the gas flow rate remains unchanged, the cross-sectional area of ​​the pipe decreases, and the speed of the gas flowing through it will inevitably increase, thereby forming a high-speed airflow inside the multiple contraction sections on the guide pipe 94.

[0079] When the gas flow rate increases, its pressure will decrease accordingly. Therefore, at this time, the multiple contraction sections on the guide tube 94 will produce a pressure difference with the outside world. Since the gas flow rate in the multiple contraction sections of the guide tube 94 is faster and the air pressure is lower than the surrounding environment, under the action of the pressure difference at this time, multiple one-way suction pipes 95 connected to the contraction end of the guide tube 94 can be used to suck smaller impurities such as dust from the outside world, that is, the inside of the corresponding drawer unit 4, into the guide tube 94, and flow to both ends of the guide tube 94 along with the flow of air inside the guide tube 94.

[0080] At the same time, the excess gas inside the two corresponding rollers 7 on the right (such as Figure 20 The air will be sucked into the air collecting pipe 93 through the corresponding exhaust pipe 91 and into the corresponding guide pipe 94 along the air collecting pipe 93. At this time, through the above principle, the dust and other smaller impurities in the interior of the corresponding drawer unit 4 can be sucked into the guide pipe 94 through multiple one-way suction pipes 95, thereby further improving the cleaning effect of the interior of the corresponding drawer unit 4 and helping to further improve the maintenance efficiency and effect of subsequent staff.

[0081] At the same time, the gas flowing inside the guide pipe 94 will eventually enter the corresponding air injection pipe 92 along the corresponding two connecting pipes 96, and finally be ejected from the air injection pipe 92, which can help to further improve the air injection force of the air injection pipe 92, improve the cleaning effect of the air blowing from the air injection pipe 92 on the inside of the corresponding drawer unit 4, and further improve the cleaning effect of the drawer unit 4. Figure 4As can be seen from the above, the gas entering the inside of the flow guide pipe 94 can be cleaned to ensure the cleanliness of the gas finally sprayed by the air blowing pipe 92.

[0082] Further, the fixed connection described above should be understood in a broad sense unless otherwise specified and limited, for example, it can be welding, or gluing, or integrally formed, and other conventional means familiar to those skilled in the art.

[0083] In the initial state, the position of the corresponding drawer unit 4 can be fixed by the cooperation of the positioning mechanism and the corresponding two positioning frames 10, thereby improving the stability of the position. When the drawer unit 4 at the upper end or the lower end of the cabinet 1 needs to be maintained, the size of the operating power of the air pump 2 is controlled, and the cooperation with the lifting assembly 5 drives the two bearing frames 54 to move upward or downward to a specified height (such as Figure 10 As shown in the direction), and then the air pump 2 cooperates with the air conveying part to input gas into the inside of the corresponding plurality of rollers 7. At this time, the part of the gas acts on the corresponding elastic baffle 69, and is released from the corresponding roller shaft 67 through the cooperation with the corresponding positioning mechanism. Then, the gas cooperates with the driving mechanism to drive the corresponding plurality of roller shafts 67 to rotate and drive the corresponding drawer unit 4 to move to the left (such as ​ As shown in the direction).

[0084] After the drawer unit 4 is completely moved to the upper end of the two bearing frames 54, the bearing frame 54 drives the drawer unit 4 to move to a suitable maintenance height through the cooperation of the air pump 2 and the lifting assembly 5. In this way, the convenience of the maintenance personnel for the maintenance of the drawer unit 4 can be improved, and the stability of the maintenance personnel for the maintenance of the drawer unit 4 can be effectively improved through the cooperation of the lifting part and the positioning mechanism.

[0085] At the same time, when the corresponding drawer unit 4 is moved by the corresponding plurality of roller shafts 67 driven by the gas, the dust adhering to the inside of the corresponding drawer unit 4 can be cleaned by the cooperation of the left two rollers 7 and the air blowing pipe 92. At the same time, the inside of the corresponding drawer unit 4 can be cleaned by the cooperation of the right two rollers 7, the flow guide pipe 94, and the plurality of one-way air suction pipes 95. In this way, the cleanliness of the inside of the drawer unit 4 can be improved, and the convenience of the subsequent maintenance personnel for the maintenance of the inside of the drawer unit 4 can be further improved.

[0086] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacement or change within the technical range disclosed by the present application according to the technical solution and the inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A power distribution cabinet that is easy to repair, comprising a cabinet body (1) and a plurality of drawer units (4), wherein two air pumps (2) are fixedly mounted on the cabinet body (1), a plurality of positioning frames (10) are fixedly mounted on the inner wall of the cabinet body (1), a plurality of rollers (7) are fixedly mounted on each of the drawer units (4), and the rollers (7) are slidably mounted on the corresponding positioning frames (10), characterized in that: A lifting assembly (5) is provided in the cabinet (1), a driving assembly (6) is provided between the rollers (7), and a cleaning assembly (9) is provided between the drawer units (4); The lifting assembly (5) comprises two boxes (51) fixedly mounted on the inner bottom wall of the cabinet (1), a screw rod (52) is passed through and rotatably mounted on each of the two boxes (51), a force transmission component is commonly mounted between the two screw rods (52) and the two air pumps (2), a sliding block (53) is commonly mounted on each of the two screw rods (52) via a ball nut, a supporting frame (54) is fixedly mounted on each of the two sliding blocks (53), and a lifting component is commonly mounted between the two supporting frames (54); The lifting component includes a support plate (55) fixedly installed between two bearing frames (54); two air collecting grooves (511) are provided on the cabinet (1); elastic molds (512) are fixedly installed on the two air collecting grooves (511); support frames (513) are sealed and slidably installed in the two air collecting grooves (511); the two support frames (513) are sealed and penetrate and fixedly installed on the corresponding elastic molds (512); and the two support frames (513) are fixedly connected to the corresponding bearing frames (54); two air injection pipes (514) are fixedly connected between the two boxes (51) and the corresponding air collecting grooves (511); and a mounting frame (3) is fixedly installed in the cabinet (1); The driving assembly (6) comprises a plurality of roller shafts (67) rotatably mounted on the drawer units (4), and the roller shafts (67) are all sealed and penetrate and rotatably mounted on the corresponding rollers (7). A driving mechanism is installed between the roller shafts (67) and the rollers (7), and a positioning mechanism is installed between the roller shafts (67).

2. The power distribution cabinet that is easy to maintain according to claim 1, characterized in that: The power delivery component includes air delivery pipes (58) fixedly mounted on the inner walls of the two boxes (51), each of the two air delivery pipes (58) is equipped with an electric valve, and a conduit (57) is fixedly connected between the two air delivery pipes (58) and the corresponding air pump (2); A partition is fixedly installed in each of the two boxes (51), two blowing pipes (59) are sealed and fixedly installed on each of the two partitions, a spring valve (510) is installed in each of the blowing pipes (59), and fan blades (56) evenly distributed in a ring are fixedly installed on each of the two screw rods (52).

3. The power distribution cabinet that is easy to maintain according to claim 2, characterized in that: The driving mechanism comprises air induction baffles (68) respectively fixedly mounted on the inner wall of the drum (7); a rotating shaft (614) is rotatably mounted in the drum (7); an air turbine (615) is fixedly mounted on each of the rotating shafts (614); and a spur gear (616) is fixedly mounted on each of the rotating shafts (614); The roller shaft (67) is provided with two sliding grooves, and a rotating gear 1 (617) is slidably installed between the two corresponding sliding grooves, and a rotating gear 2 (618) is slidably installed between the two corresponding sliding grooves, and the rotating gear 2 (618) is fixedly connected to the corresponding rotating gear 1 (617), and the rotating gear 2 (618) and the rotating gear 1 (617) are matched with the corresponding spur gear (616), and an air delivery component is installed between the roller (7) and the two ducts (57).

4. The power distribution cabinet that is easy to maintain according to claim 3, characterized in that: The air delivery component comprises a pipe body (61) respectively fixedly connected to the duct (57), and the two pipe bodies (61) are both passed through and fixedly installed on the cabinet (1), the two pipe bodies (61) are both installed with an electric valve (2), the two support frames (54) are both passed through and fixedly installed with an air injection pipe (63), and a hose (62) is fixedly connected between the two air injection pipes (63) and the corresponding pipe body (61), and the lower ends of the two hoses (62) are both fixedly connected to the cabinet (1); An air supply pipe (64) is passed through and fixedly installed on the positioning frame (10), two elastic tubes (65) are fixedly connected to the air supply pipe (64), and two tube bodies (66) matching the corresponding elastic tubes (65) are fixedly connected to the roller (7).

5. The power distribution cabinet that is easy to maintain according to claim 3, characterized in that: The positioning mechanism comprises round rods respectively fixedly mounted on the air induced baffles (68); two fixing frames (611) are rotatably mounted on the round rods; friction plates (613) matched with corresponding roller shafts (67) are fixedly mounted on the fixing frames (611); a torsion spring (612) is fixedly mounted between the two fixing frames (611); and a trigger component is commonly mounted between the rollers (7).

6. The power distribution cabinet that is easy to maintain according to claim 5, characterized in that: The triggering components include elastic baffles (69) fixedly mounted on the inner side walls of the drum (7), and the elastic baffles (69) are sealed and slidably mounted in the corresponding air induction baffles (68). The elastic baffles (69) are fixedly mounted with protrusions (610) that match the corresponding two fixing frames (611).

7. The power distribution cabinet that is easy to maintain according to claim 1, characterized in that: An adjustment assembly (8) is commonly provided between the two carriers (54) and the positioning frame (10), and the adjustment assembly (8) includes a push frame (81) which is respectively sealed and penetrates and is slidably mounted on the roller (7), and one end of each push frame (81) is rotationally connected to a corresponding second rotating gear (618); A round roller (82) is passed through and fixedly mounted on the other end of the push frame (81), two second protrusions (83) are fixedly mounted on the positioning frame (10), and two third protrusions (84) are fixedly mounted on the two supporting frames (54).

8. The power distribution cabinet that is easy to maintain according to claim 1, characterized in that: The cleaning assembly (9) comprises exhaust pipes (91) respectively fixedly connected to the roller (7); a spray pipe (92) is fixedly connected between the two exhaust pipes (91) on one side, and the spray pipes (92) are fixedly installed on the corresponding drawer unit (4); On the other side, the two corresponding exhaust pipes (91) are fixedly connected to an air collecting pipe (93), and the air collecting pipe (93) is fixedly installed on the corresponding drawer unit (4). The air collecting pipe (93) is fixedly connected to a flow guide pipe (94). The flow guide pipe (94) and the corresponding air injection pipe (92) are fixedly connected to two connecting pipes (96). The flow guide pipe (94) is fixedly connected to a linearly evenly distributed one-way air suction pipe (95).

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