Power distribution cabinet convenient to overhaul

Abstract

The invention discloses a power distribution cabinet convenient to overhaul, and relates to the technical field of large-scale power grid safety guarantee, the power distribution cabinet comprises a cabinet body and a plurality of drawer units, the cabinet body is fixedly provided with two air pumps, the inner wall of the cabinet body is fixedly provided with a plurality of positioning frames, each drawer unit is fixedly provided with a plurality of rollers, and the rollers are fixedly arranged on the cabinet body. The rollers are installed on the corresponding positioning frames in a sliding mode, a lifting assembly is arranged in the cabinet body, a driving assembly is jointly arranged between the rollers, and a cleaning assembly is jointly arranged between the drawer units. The device has the advantages that through cooperation of the lifting assembly and the driving assembly, the drawer unit can be moved to the specified height according to the needs of maintainers, the maintenance convenience of the maintainers on the drawer unit can be improved, meanwhile, through the cleaning assembly, the interior of the drawer unit can be cleaned in a suction and suction combined mode, and the maintenance efficiency is improved. And the maintenance effect and the maintenance efficiency of the maintenance personnel can be further improved.

Description

Technical Field

[0001] The invention relates to the technical field of large-scale power grid security, and in particular to a power distribution cabinet that is easy to maintain. Background Art

[0002] In power supply scenarios such as large-scale power grid security and defense systems, power distribution cabinets are equipped to achieve 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 its flexibility of use and improve the convenience of maintenance, distribution cabinets with multiple functional drawers have emerged. For example, Schneider Blokset power distribution cabinets have functional drawers that can be plugged in, replaced and repaired separately, which greatly facilitates operation and maintenance. For this reason, this type of distribution cabinet is gradually being widely used in various industries.

[0003] However, the overall height of the current power distribution cabinet with multiple functional drawers is usually around 2200mm. When the staff needs to inspect the functional drawers at the upper end of the equipment, they often need to use climbing auxiliary tools. When the functional drawers at the middle and lower ends of the equipment need to be inspected, the staff need to bend over or squat for a long time, which increases the inconvenience of the staff's maintenance work. For this reason, we propose a power distribution cabinet that is easy to maintain to solve the above problems. Summary of the invention

[0004] The purpose of the invention is to solve the problems raised in the background technology and to provide a power distribution cabinet which is easy to maintain.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A power distribution cabinet convenient for maintenance, comprising a cabinet body and a plurality of drawer units, wherein two air pumps are fixedly mounted on the cabinet body, a plurality of positioning frames are fixedly mounted on the inner wall of the cabinet body, a plurality of rollers are fixedly mounted on the drawer units, and the rollers are slidably mounted on the corresponding positioning frames, a lifting assembly is arranged in the cabinet body, a driving assembly is commonly arranged between the rollers, and a cleaning assembly is commonly arranged between the drawer units;

[0007] The lifting assembly comprises two boxes fixedly mounted on the bottom wall of the cabinet, a screw rod is passed through and rotatably mounted on the two boxes, a force transmission component is installed between the two screw rods and the two air pumps, a sliding block is installed on the two screw rods through a ball nut, a bearing frame is fixedly mounted on the two sliding blocks, and a lifting component is installed 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 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 prior art, the present invention has the following advantages:

[0010] 1: The present invention controls the size of the air pump operating power and the coordination of the lifting assembly and the driving assembly, so as to achieve the effect of driving the support frame 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 to a certain extent.

[0011] 2: The present invention can automatically drive the drawer unit to be moved out and reset as needed through the cooperation of the air pump, the driving component and the adjusting component, which helps to further improve the convenience of maintenance staff for maintenance, and at the same time can also improve the safety of maintenance staff for maintenance 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 be used to improve the cleanliness of the inside of the drawer unit by combining air blowing cleaning on one side and dust extraction cleaning on the other side, which helps to further improve the convenience of maintenance personnel to inspect the inside of the drawer unit. 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 A schematic diagram of the structure of a power distribution cabinet that is easy to maintain proposed by the present invention;

[0014] Figure 2 for Figure 1 A schematic diagram of the structure of the components inside the middle cabinet;

[0015] Figure 3 for Figure 2 A schematic diagram of the structure of the middle lifting assembly;

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

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

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

[0019] Figure 7 for Figure 2 A schematic cross-sectional view of the middle cabinet;

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

[0021] Fig. 9 for Figure 2 Schematic diagram of the structure of the middle drive assembly;

[0022] Fig.10 for Fig. 9 Structural schematic diagram of the middle bearing frame and the positioning frame;

[0023] Fig.11 for Fig.10 Schematic cross-sectional view of the middle load-bearing frame and the positioning frame;

[0024] Fig.12 for Fig.10 A schematic diagram of the structure of the middle driving mechanism;

[0025] Fig.13 for Fig.12 A schematic cross-sectional view of the middle drum;

[0026] Fig.14 for Fig.13 Schematic diagram of the structure after rotating a certain angle;

[0027] Fig.15 for Fig.13 The structural diagram of the positioning mechanism;

[0028] Fig.16 for Fig.14 Schematic diagram of the connection structure between the middle roller shaft and the rotating shaft

[0029] Fig.17 for Fig.16 The structural diagram of the middle regulating component;

[0030] Fig.18 for Fig. 9 a schematic cross-sectional view of a middle drawer unit;

[0031] Fig.19 for Fig.18 A schematic diagram of the structure of the cleaning component;

[0032] Fig. 20 for Fig.19 Schematic diagram of the enlarged structure of part A.

[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. Carrier; 55. Support plate; 56. Fan blade; 57. Conduit; 58. Air pipe; 59. Blowing pipe; 510. Spring valve; 511. Air collecting slot; 512. Elastic mold; 513. Support frame; 514. Air injection pipe;

[0036] 6. driving assembly; 61. tube body 1; 62. hose; 63. air injection tube; 64. air supply tube; 65. elastic tube; 66. tube body 2; 67. roller shaft; 68. air induction baffle; 69. elastic baffle; 610. protrusion 1; 611. fixing frame; 612. torsion spring; 613. friction plate; 614. rotating shaft; 615. gas turbine; 616. spur gear; 617. rotating gear 1; 618. rotating gear 2;

[0037] 7. Roller;

[0038] 8. Adjustment assembly; 81. Push frame; 82. Round roller; 83. Bump 2; 84. Bump 3;

[0039] 9. Cleaning assembly; 91. Exhaust pipe; 92. Air spray 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 following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Reference Figure 1-Figure 20 A power distribution cabinet that is easy to maintain includes a cabinet body 1 and multiple drawer units 4. A mounting frame 3 is fixedly installed in the cabinet body 1. Two air pumps 2 are fixedly installed on the cabinet body 1. Multiple positioning frames 10 are fixedly installed on the inner wall of the cabinet body 1. Multiple rollers 7 are fixedly installed on the drawer units 4, and the rollers 7 are slidably installed on the corresponding positioning frames 10. A lifting component 5 is arranged in the cabinet body 1, a driving component 6 is commonly arranged between the rollers 7, and a cleaning component 9 is commonly arranged between the drawer units 4.

[0043] When the equipment is running when needed, by inserting the drawer unit 4 into the specified position and starting the cabinet 1, the drawer unit 4 can be powered by the cooperation of the main bus and the branch bus in the cabinet 1 (this part is the existing mechanical structure and is not shown in the drawings of the specification). At the same time, when the drawer unit 4 starts to run, the various functional units are connected to the external electrical equipment through cables, so that other facilities can be powered on. When the drawer unit 4 needs to be inspected, the cabinet 1 is first powered off, and then the drawer units 4 are removed one by one for separate inspection (the drawer unit 4 cooperates with the cabinet 1 to realize the distribution of electricity, which is similar to the working principle of the existing "Schneider Blokset power distribution cabinet").

[0044] In the initial state, a plurality of plates (from Figure 2 As can be seen in the figure, the bottom of multiple drawer units 4 can be supported. At the same time, through the cooperation of two relative positioning frames 10 with corresponding multiple rollers 7 and positioning mechanisms, the drawer units 4 can be positioned, which helps to improve the stability of the drawer units 4 during stationary operation or storage.

[0045] Reference Figure 1-Figure 10 The lifting assembly 5 includes two boxes 51 fixedly mounted on the inner bottom wall of the cabinet 1, and screw rods 52 are penetrated and rotatably mounted on the two boxes 51. A force transmission component is installed between the two screw rods 52 and the two air pumps 2. Sliding blocks 53 are installed on the two screw rods 52 through ball nuts, and supporting frames 54 are fixedly mounted on the two sliding blocks 53. A lifting component is installed between the two supporting frames 54.

[0046] The power transmission component includes air delivery pipes 58 fixedly mounted on the inner walls of the two boxes 51, and the two air delivery pipes 58 are each equipped with an electric valve (not shown in the figure but not marked). Figure 6 As can be seen in the figure, the two air delivery pipes 58 are fixedly connected to the corresponding air pumps 2 by a conduit 57, and the two boxes 51 are fixedly installed with partitions (drawn in the figure but not marked, from Figure 6 As can be seen in the figure, two blowing pipes 59 are sealed and fixedly installed on the two partitions, and spring valves 510 are installed in the blowing pipes 59. Fan blades 56 evenly distributed in a ring are fixedly installed on the two screw rods 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. During 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 over or squat for a long time, which is easy to 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 operations and inconveniences.

[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 small, when air is supplied to the corresponding two blowing pipes 59 by cooperating with the duct 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 relatively large and the impact force generated by the gas blown out from the corresponding air supply pipe 58 is relatively 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 supply pipe 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 reset 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, first drive the two air pumps 2 to run at a relatively low power, and start the two electric valves 1 (at this time, the electric valves 2 on the two pipe bodies 1 61 are in a closed state). At this time, air can be supplied to the corresponding two blowing pipes 59 through the corresponding ducts 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 bearing frames 54 are 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 inspected 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 inspected to automatically move to the upper end of the two carriers 54, and after it stops, the two air pumps 2 are restarted. At this time, the two air pumps 2 need to operate at a higher power. At this time, according to the above principle, only the right blowing pipe 59 will drive the corresponding multiple fan blades 56 to blow air. At this time, the corresponding multiple fan blades 56 will cooperate with the corresponding screw rod 52 to drive the corresponding multiple fan blades 56 to change the blowing direction. Figure 6 In the direction shown, the two screw rods 52 rotate clockwise, and at this time, the two bearing frames 54 and the support plate 55 can cooperate to drive the drawer unit 4 to be repaired to move downward (such as Fig. 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 support frames 54 downward, and then drive the two support frames 54 upward to move the drawer unit 4 to a suitable height. This makes it easy to adjust 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 Figure 1-Figure 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, and 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, and the two support frames 513 are sealed and penetrated and fixedly installed on the corresponding elastic molds 512, and the two support frames 513 are fixedly connected to the corresponding supporting frames 54, and two air injection pipes 514 are fixedly connected between the two boxes 51 and the corresponding wind collecting grooves 511.

[0054] When the air pump 2 is running, the corresponding left or right blow pipe 59 (such as Figure 6 During the process of blowing air above the partition, i.e., 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 bearing frames 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). Figure 7In the direction shown), the gas can generate an upward lifting force on the corresponding carrier frame 54 through the two support frames 513, which can help improve the stability of the two carrier frames 54 and the support plate 55 when they cooperate to move the drawer unit 4 to be repaired to a suitable height. During the process of the staff repairing the drawer unit 4, the two carrier frames 54 and the support plate 55 cooperate to support it, which helps to improve the maintenance effect of the maintenance personnel to a certain extent.

[0056] Moreover, by indirectly supporting the two supporting frames 54 and the drawer units 4 thereon with gas, the mechanical wear between the corresponding sliding blocks 53 of the supporting frames 54 and the screw rods 52 which is aggravated by the increase in weight on the supporting frames 54 can be alleviated to a certain extent, which can help to improve the service life of the equipment to a certain extent.

[0057] At the same time, the two wind collecting grooves 511 are fixedly connected with exhaust pipes, and the two exhaust pipes are installed with pressure relief valves (not shown in the figure). When the gas inside the two wind collecting grooves 511, that is, the gas at the lower ends of the two support frames 513, continues to increase (such as Figure 7 When the pressure relief value of the two pressure relief valves is reached (which can be set according to the needs of the user), the two pressure relief valves will automatically open to relieve the pressure inside the two wind gathering grooves 511, thereby preventing a series of safety accidents caused by the continuous increase of gas inside the two wind gathering grooves 511, and preventing the subsequent displacement of the corresponding support frame 54 from being hindered when there is too much gas at the lower ends of the two support frames 513.

[0058] Reference Figure 4 , Figure 6 , Figure 9-Figure 17 The driving assembly 6 includes a plurality of roller shafts 67 rotatably mounted on the drawer units 4 respectively, and the roller shafts 67 are sealed and penetrated 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.

[0059] The positioning mechanism includes round rods respectively fixedly mounted on the air induced baffle 68, on which two fixing frames 611 are rotatably mounted, on which friction plates 613 matching the corresponding roller shafts 67 are fixedly mounted, between which a torsion spring 612 is fixedly mounted, and between which the two fixing frames 611 are respectively mounted a trigger component.

[0060] The triggering component includes elastic baffles 69 respectively fixedly mounted on the inner side wall of the drum 7 (from Fig.15 As can be seen in the figure, the elastic baffles 69 are composed of a plate body and two return springs, and the elastic baffles 69 are sealed and slidably installed in the corresponding air baffles 68. Fig.15A protrusion 610 matching with two corresponding fixing frames 611 is fixedly installed on each of the two fixing frames 611.

[0061] like Fig.15 In the state shown, in the initial state, the corresponding roller shaft 67 can be clamped and positioned through the cooperation of the corresponding two fixing frames 611 and the two friction plates 613, so that the position of the corresponding drawer unit 4 can be indirectly fixed by fixing the position of multiple roller shafts 67, which helps to improve the position stability of the drawer unit 4 in a static state.

[0062] When the drawer unit 4 needs to be repaired, the air pump 2 cooperates with the air delivery component to deliver air to the corresponding drum 7 through the pipe body 2 66. The impact force generated by this part of the gas will first act on the corresponding elastic baffle 69 (from Fig.14 ), and drives the elastic baffle 69 to drive the corresponding protrusion 610 to move to the left (as shown in Fig.15 As shown in the direction, the protrusion 1 610 moves to the left, and the driving force applied to the corresponding two fixing frames 611 can drive the corresponding two fixing frames 611 to rotate outward and expand, so that the corresponding two friction plates 613 gradually move away from each other, thereby releasing the corresponding roller shaft 67, so that the driving mechanism can drive the roller shaft 67 to drive the corresponding drawer unit 4 to automatically move.

[0063] At the same time, when the drawer unit 4 is forced to move to a suitable position or to reset, the air pump 2 and the driving mechanism stop driving to deliver air to the inside of the corresponding drum 7. At this time, under the elastic force of the elastic baffle 69 and the corresponding torsion spring 612, the elastic baffle 69 can drive the corresponding protrusion 610 to move to the left and reset (such as Fig.15 As shown in the direction, the corresponding two fixing frames 611 are forced to rotate inward to reset, so that the two friction plates 613 re-clamp and position the corresponding roller shafts 67. In this way, the stability of the position of the drawer unit 4 when it is stationary can be ensured by timely positioning the corresponding multiple roller shafts 67.

[0064] Reference Figure 4 , Figure 6 , Figure 9-Figure 17The driving mechanism includes air 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 the rotating shaft 614, a spur gear 616 is fixedly mounted on the rotating shaft 614, two slide grooves are provided on the roller shaft 67, a rotating gear 1 617 is slidably mounted between the corresponding two slide grooves, a rotating gear 2 618 is slidably mounted between the corresponding two slide 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 which is fixedly connected to the duct 57, and the two pipe bodies 61 are both penetrated and fixedly installed on the cabinet 1. The two pipe bodies 61 are both installed with an electric valve 2 (drawn but not marked in the figure, from Figure 6 As can be seen in the figure, the two carriers 54 are both penetrated and fixedly installed with gas injection pipes 63, and the two gas 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 FIG. 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, the air supply pipe 64 is fixedly connected to two elastic tubes 65, and the roller 7 is fixedly connected to a tube body 66 that matches the corresponding elastic tube 65.

[0066] A sealing ring is installed at the air outlet port of the air injection pipe 63. When the above-mentioned lifting assembly 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 inspected, 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 directly opposite to the corresponding air supply pipe 64 (such as Fig.12 In the state shown in the figure, the two air pumps 2 are started, the electric valve one is closed, and the electric valve two on the two tube bodies 1 61 are opened. At this time, during the operation of the air pump 2, the inhaled gas will go along the corresponding conduit 57, the tube body 1 61, the hose 62, and 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 drum 7 is blown toward the corresponding gas turbine 615 under the guidance of the corresponding air 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 is rotated by force, the corresponding rotating shaft 614, the spur gear 616, and the rotating gear 617 can be used to cooperate (from Fig.16 As can be seen in the figure, in the initial state, the spur gear 616 is meshed with the corresponding rotating gear 617), driving the roller shaft 67 to rotate and displace to the left until the corresponding plurality of roller shafts 67 drive the corresponding drawer unit 4 to completely move out of the corresponding two positioning frames 10, and after the two carrier frames 54 stop steadily, the operation of the air pump 2 can be stopped (such as Fig.10 In the direction shown, the air pump 2 needs to run at a higher power at this time to ensure that the gas impact force input by the tube body 66 into the inside of the drum 7 can cooperate with the positioning mechanism to release the corresponding roller shaft 67, and drive the roller shaft 67 to roll and displace by cooperating with the driving mechanism).

[0069] At the same time from Fig.15 It can be seen that a limit plate is fixedly installed between the elastic tube 65 and the corresponding positioning frame 10, and at the same time, both ends of the elastic tube 65 are made of hard materials, the middle part is made of elastic materials, and the corresponding elastic tube 65 and the tube body 2 66 are specifically connected in a sealed and snap-fit ​​manner. The purpose is to ensure that when the corresponding multiple air turbines 615 are forced to drive the corresponding drawer units 4 and the multiple rollers 7 to displace, the tube body 2 66 can be connected to the corresponding elastic tube 65 through the snap-fit ​​connection, and the elastic tube 65 can ensure the stability of the air supply to the corresponding tube body 2 66 during the stretching or compression process.

[0070] The upper and lower elastic tubes 65 in the cabinet 1 are arranged in opposite positions to the corresponding tube bodies 66. Fig.15 As shown, the elastic tube 65 at the upper end of the cabinet 1 is located at the upper end of the corresponding tube body 2 66, while the positional relationship between the elastic tube 65 and the corresponding tube body 2 66 at the lower end of the cabinet 1 is opposite to that of the corresponding tube body 2 66. The purpose is that, if the drawer unit 4 at the upper end needs to be inspected and repaired, the support frame 54 needs to drive the drawer unit 4 and the multiple rollers 7 and the tube body 2 66 thereon to move downward. At this time, the positional relationship between the corresponding elastic tube 65 and the corresponding tube body 2 66 can facilitate the separation of the two, and when the subsequent tube body 2 66 is forced to move upward and reset, the tube body 2 66 can be quickly engaged and fixed with the corresponding elastic tube 65.

[0071] Reference Figure 9-11 , Fig.16 , Fig.17The two carriers 54 and the positioning frame 10 are provided with an adjustment assembly 8, which includes a push frame 81 which is sealed and penetrated and slidably mounted on the roller 7, and one end of the push frame 81 is rotatably connected to the corresponding rotating gear 2 618, and the other end of the push frame 81 is penetrated and fixedly mounted with a round roller 82 (the one end and the other end here refer to Fig.17 , Fig.17 The position of the turbine 615 in the figure is one end, and the position of the roller shaft 67 in the figure is the other end), two protrusions 83 are fixedly installed on the positioning frame 10, and two protrusions 84 are fixedly installed on the two supporting frames 54.

[0072] When the drawer unit 4 and the corresponding plurality of rollers 7 are located in the middle of the corresponding two positioning frames 10, the spur gears 616 are meshed with the corresponding rotating gear 1 617, and the corresponding air turbine 615 is rotated by force to drive the corresponding roller shaft 67 to move to the left (such as Fig.17 The driving roller shaft 67 drives the corresponding drawer unit 4 to enter the two carrier 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 drum 7 gradually approaches the corresponding protrusion 3 84, the protrusion 3 84 exerts a driving force on the corresponding round roller 82 by its own upward tilt angle (as shown in FIG. Fig.17 The corresponding round roller 82 can drive the corresponding push frame 81 to move the rotating gear 2 618 and the rotating gear 1 617 upward until the rotating gear 2 618 is engaged with the corresponding spur gear 616 (the tooth directions of the rotating gear 2 618 and the corresponding rotating gear 1 617 and the spur gear 616 are opposite).

[0073] When the rotating gear 2 618 is meshed with the corresponding spur gear 616, the corresponding round roller 82 is limited by the left side of the protrusion 3 84 (such as Fig.17 In the direction shown), the corresponding drawer unit 4 can be positioned by cooperating with the corresponding round roller 82 and the roller 7. At the same time, when the drawer unit 4 needs to be moved and reset later, the drawer unit 4 is moved to the original height through the above operation, and the air pump 2 cooperates with the driving mechanism to drive the air turbine 615 to rotate again. At this time, the air turbine 615 will drive the roller shaft 67 to rotate in the opposite direction through the corresponding spur gear 616 and the rotating gear 2 618, and the corresponding multiple roller shafts 67 can drive the corresponding drawer unit 4 to move to the right and reset on one side (such as Fig.10 direction shown).

[0074] At the same time, when the corresponding multiple roller shafts 67 are driven by force to move and reset the corresponding drawer units 4, 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 618, and the rotating gear 617 to move downward and reset (such as Fig.17 In the direction shown), until the rotating gear 1 617 is meshed with the corresponding spur gear 616 again, so that the corresponding roller shaft 67 can be driven to drive the corresponding drawer unit 4 to move back and forth through the above operation.

[0075] Reference Figure 18-Figure 20 The cleaning assembly 9 includes exhaust pipes 91 respectively 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, and a wind collecting pipe 93 is fixedly connected between the two exhaust pipes 91 on the other side (the one side and the other side are referred to as Fig.18 , Fig.18 The exhaust duct 91 in the figure is located on one side, and the air collecting duct 93 in the figure is located on the other side), and the air collecting ducts 93 are fixedly installed on the corresponding drawer units 4, and the air collecting ducts 93 are fixedly connected with flow guide ducts 94, and the flow guide ducts 94 and the corresponding air spray ducts 92 are fixedly connected with two connecting pipes 96, and the flow guide ducts 94 are fixedly connected with linearly evenly distributed one-way air suction ducts 95.

[0076] Since a large amount of heat energy is generated during the operation of the existing power distribution cabinet, it is usually necessary to add a heat dissipation device to the equipment to ensure the normal and stable operation of its internal components. 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. 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 inspecting the inside of the drawer unit 4, thereby reducing the staff's inspection efficiency and the accuracy of the inspection 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 corresponding two rollers 7 on the left (such as Fig.18Excess gas inside the drawer unit 4 (in the direction shown) will enter the spray pipe 92 along the corresponding exhaust pipe 91 and be finally sprayed out by the corresponding spray 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 inspections.

[0078] At the same time, combined Fig.19 and Fig. 20 It can be seen that the guide tube 94 is composed of a plurality of pipes similar to a "Venturi tube", and the plurality of pipes are all set to be wide at both ends and narrow in the middle. When the gas enters the subsequent air collecting tube 93 and the gas flows from the middle to both ends of the guide tube 94, for example, when the gas in the guide tube 94 flows to the upper left side (such as Fig. 20 When the gas flows through the middle part of the pipeline, i.e. the contraction section, the cross-sectional area of ​​the pipeline 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 pipeline 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 tube 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, the air pressure is lower than the surrounding environment. Therefore, 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, dust inside 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 the airflow inside the guide tube 94.

[0080] At the same time, the excess gas (such as Fig.19 The air will be injected into the air collecting duct 93 through the corresponding exhaust duct 91 and enter the corresponding guide duct 94 along the air collecting duct 93. At this time, through the above principle, the dust and other smaller impurities inside the corresponding drawer unit 4 can be sucked into the guide duct 94 through multiple one-way suction ducts 95, so as to further improve the cleaning effect of the interior of the corresponding drawer unit 4, which is helpful to further improve the maintenance efficiency and effect of subsequent staff.

[0081] At the same time, the gas flowing inside the guide tube 94 will eventually enter the corresponding air jet pipe 92 along the corresponding two connecting pipes 96, and finally be ejected from the air jet pipe 92, which can help to further improve the air jet force of the air jet pipe 92, improve the cleaning effect of the air jet pipe 92 on the inside of the corresponding drawer unit 4, and further improve the cleaning effect of the drawer unit 4. Fig. 20As can be seen in the figure, the gas entering the guide tube 94 can be cleaned to ensure the cleanliness of the gas finally ejected from the air injection pipe 92.

[0082] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0083] In the present invention, 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 its position. When the drawer unit 4 at the upper or lower end of the cabinet 1 needs to be repaired, the two bearing frames 54 are driven to move upward or downward to a specified height (such as 1 / 4") by controlling the operating power of the air pump 2 and cooperating with the lifting assembly 5. Figure 4 The air pump 2 cooperates with the air delivery component to input gas into the corresponding plurality of rollers 7. At this time, the gas will first act on the corresponding elastic baffle 69, and cooperate with the corresponding positioning mechanism to release the corresponding roller shaft 67. 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 (as shown in the figure). Fig.10 direction shown).

[0084] After the drawer unit 4 is completely moved to the upper end of the two supporting frames 54, the air pump 2 and the lifting assembly 5 can be used to drive the supporting frames 54 to move the drawer unit 4 to a suitable maintenance height, thereby improving the convenience of the staff in its maintenance. In this process, the cooperation between the lifting components and the positioning mechanism can effectively improve the stability of the maintenance personnel in inspecting the drawer unit 4.

[0085] At the same time, when gas is used to drive the corresponding multiple roller shafts 67 to move the corresponding drawer unit 4, the dust attached to the inside of the corresponding drawer unit 4 can be blown clean through the cooperation of the corresponding two rollers 7 on the left and the air blower pipe 92. At the same time, the corresponding two rollers 7 on the right cooperate with the guide pipe 94 and multiple one-way suction pipes 95 to vacuum 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 to further improve the convenience of subsequent maintenance personnel in inspecting the inside of the drawer unit 4.

[0086] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power distribution cabinet that is easy to maintain, 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 arranged in the cabinet (1), a driving assembly (6) is arranged between the rollers (7), and a cleaning assembly (9) is arranged 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) passing through and rotatably mounted on each of the two boxes (51), a force transmission component being commonly mounted between the two screw rods (52) and the two air pumps (2), a sliding block (53) being commonly mounted on each of the two screw rods (52) via a ball nut, a bearing frame (54) being fixedly mounted on each of the two sliding blocks (53), and a lifting component being commonly mounted between the two bearing frames (54); The driving assembly (6) comprises a plurality of roller shafts (67) which are rotatably mounted on the drawer units (4) respectively, 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 is characterized in that: The force delivery component comprises air delivery pipes (58) respectively fixedly mounted on the inner walls of the two boxes (51), the two air delivery pipes (58) are each mounted with an electric valve 1, 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 penetrated 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 1 is characterized in that: The lifting component comprises a support plate (55) fixedly mounted between two supporting frames (54); two air collecting grooves (511) are provided on the cabinet (1); elastic molds (512) are fixedly mounted on the two air collecting grooves (511); support frames (513) are sealed and slidably mounted in the two air collecting grooves (511); the two support frames (513) are sealed and penetrated through and fixedly mounted on the corresponding elastic molds (512); the two support frames (513) are fixedly connected to the corresponding supporting 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 mounted in the cabinet (1).

4. The power distribution cabinet that is easy to maintain according to claim 2 is 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 the rotating shaft (614); and a spur gear (616) is fixedly mounted on the rotating shaft (614); The roller shaft (67) is provided with two slide grooves, and a rotating gear 1 (617) is slidably installed between the two corresponding slide grooves, and a rotating gear 2 (618) is slidably installed between the two corresponding slide 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).

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

6. The power distribution cabinet that is easy to maintain according to claim 4 is characterized in that: The positioning mechanism comprises round rods respectively fixedly mounted on the air induced baffles (68), two fixing frames (611) being rotatably mounted on the round rods, friction plates (613) matching with corresponding roller shafts (67) being fixedly mounted on the fixing frames (611), a torsion spring (612) being fixedly mounted between the two corresponding fixing frames (611), and a trigger component being commonly mounted between the rollers (7).

7. The power distribution cabinet convenient for maintenance according to claim 6, characterized in that: The triggering components include elastic baffles (69) respectively 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), and the elastic baffles (69) are fixedly mounted with protrusions (610) that match the corresponding two fixing frames (611).

8. The power distribution cabinet that is easy to maintain according to claim 1 is characterized in that: An adjustment assembly (8) is commonly provided between the two bearing frames (54) and the positioning frame (10), and the adjustment assembly (8) comprises a push frame (81) which is respectively sealed and penetrated and 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).

9. 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 drum (7); two corresponding exhaust pipes (91) on one side are fixedly connected to each other with an air spray pipe (92), and the air spray pipes (92) are fixedly mounted on the corresponding drawer units (4); The two corresponding exhaust pipes (91) on the other side 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), and the flow guide pipe (94) and the corresponding air injection pipe (92) are fixedly connected to two connecting pipes (96), and the flow guide pipe (94) is fixedly connected to a linearly evenly distributed one-way air suction pipe (95).

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