Low-voltage power distribution cabinet with switch convenient to replace

Abstract

The invention discloses a low-voltage power distribution cabinet with a switch convenient to replace, and belongs to the technical field of power distribution cabinet equipment. A low-voltage power distribution cabinet convenient to replace a switch comprises a cabinet body, an installation assembly is arranged on the inner wall of the cabinet body, an installation part is movably connected to the outer side of the installation assembly, an installation hole is formed in the outer side of the installation part, the installation part is connected with the installation assembly in a clamped mode through the installation hole, and the installation part is used for installing the air switch. A heat dissipation assembly is arranged in an inner cavity of the cabinet body, and heat dissipation openings are formed in the outer side of the cabinet body. According to the low-voltage power distribution cabinet convenient to replace the switch, the installation assembly is arranged, so that when the air switch is replaced, the air switch needing to be replaced can be disassembled by pressing a limiting shaft, and therefore the situation that all the air switches on one side need to be disassembled to be disassembled is avoided; the maintenance and replacement efficiency of the device on the air switch is improved, and the practical performance of the device is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinet equipment, and more specifically, to a low-voltage power distribution cabinet for convenient switch replacement. Background Art

[0002] A power distribution cabinet is a common electrical equipment, which includes a cabinet body. When in use, it is necessary to install components such as air switches in the power distribution cabinet. There is a horizontal slide groove on the back of the air switch. The existing installation structure is to install a slide rail type mounting plate on the side wall of the cabinet body, and the horizontal slide groove corresponding to the air switch is mounted on one side of the slide rail type mounting plate, and then moved to a predetermined position to complete the installation. However, in the prior art, it is usually necessary to install multiple air switches on a slide rail type mounting plate. Therefore, when disassembling the air switch that needs to be replaced, all the air switches on one side of it need to be disassembled before it can be disassembled, which results in low replacement efficiency of the air switch and reduced practical performance. Based on this, the present invention designs a low-voltage power distribution cabinet that is convenient for replacing switches to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a low-voltage distribution cabinet for convenient switch replacement, so as to solve the problems raised in the above-mentioned background technology.

[0004] A low-voltage power distribution cabinet for convenient switch replacement comprises a cabinet, an inner wall of the cabinet is provided with a mounting assembly, the outer side of the mounting assembly is movably connected with a mounting piece, the outer side of the mounting piece is provided with a mounting hole, and the mounting piece is clamped with the mounting assembly through the mounting hole, the mounting piece is used to install an air switch, the inner cavity of the cabinet is provided with a heat dissipation assembly, and the outer side of the cabinet is provided with a heat dissipation port, the inner cavity of the heat dissipation port is provided with a dustproof assembly, and the dustproof assembly is connected to the heat dissipation assembly, the inner cavity is located above the mounting assembly and is fixedly connected with an outgoing busbar, the upper part of the outgoing busbar is fixedly connected with a frame switch, the upper part of the frame switch is fixedly connected with an incoming busbar, the side of the incoming busbar is fixedly connected with a metering watt-hour meter, and the lower part of the metering watt-hour meter is fixedly connected with a lighting switch.

[0005] Preferably, the mounting assembly comprises a U-shaped frame fixedly connected to the inner wall of the cabinet, a spring 1 is arranged on the inner side of the U-shaped frame, both ends of the spring 1 are fixedly connected to a limiting plate, and the side of the limiting plate away from the spring 1 is fixedly connected to the limiting axis.

[0006] Preferably, the diameter of the limiting shaft is equal to the diameter of the mounting hole, and the limiting shaft passes through the U-shaped frame and is slidably connected to the mounting hole.

[0007] Preferably, the heat dissipation assembly includes a partition fixedly connected to the inner wall of the cabinet, the outer side of the partition is rotatably connected to two rotating rods, one end of the rotating rod is fixedly connected to a fan blade, and the other end of one of the rotating rods is fixedly connected to a driven wheel, and the other end of the other rotating rod is fixedly connected to a driving wheel, a belt is provided between the driven wheel and the driving wheel, and a driving assembly is provided on the side of the driving wheel away from the rotating rod.

[0008] Preferably, the drive assembly includes a fixed sleeve fixedly connected to the inner wall of the cabinet, the inner cavity of the fixed sleeve is provided with mercury, a conductive plate 1 is placed on the liquid surface of the mercury, the outer side of the conductive plate 1 is electrically connected to a power supply, a conductive plate 2 is fixedly connected to the top wall of the fixed sleeve, the outer side of the conductive plate 2 is electrically connected to a motor, the power supply and the motor are both fixedly mounted on the inner wall of the cabinet, and an active bevel wheel 1 is fixedly connected to the output shaft of the motor, a driven bevel wheel 1 is meshed with the outer side of the active bevel wheel 1, a drive shaft is meshed with the outer side of the driven bevel wheel 1, and the drive shaft is fixedly connected to the active wheel.

[0009] Preferably, the dustproof component includes a turntable rotatably connected to the outside of the heat dissipation port, a transmission component is provided on the side close to the inner cavity of the cabinet, and a guide groove is opened on the outer side of the turntable, the inner cavity of the guide groove is slidably connected with a movable shaft, one end of the movable shaft is fixedly connected to a limiting block, and the other end of the movable shaft is fixedly connected to a baffle, the outer side of the baffle is fixedly connected to a spring 2, the end of the spring 2 away from the baffle is fixedly connected to a sliding seat, and the sliding seat is slidably connected to the cabinet.

[0010] Preferably, the transmission assembly includes a connecting frame fixedly connected to the inner wall of the cabinet, a transmission rod is rotatably connected to the outer side of the connecting frame, one end of the transmission rod is fixedly connected to the guide groove, and the other end of the transmission rod is fixedly connected to a driven bevel gear 2, the outer side of the driven bevel gear 2 is meshed with an active bevel gear 2, the outer side of the active bevel gear 2 is fixedly connected to a linkage rod, one end of the linkage rod away from the active bevel gear 2 is fixedly connected to the fan blade, and the outer side of the linkage rod is rotatably connected to a bearing frame, and the bearing frame is fixedly connected to the cabinet.

[0011] Preferably, a door panel is rotatably connected to the outer side of the cabinet, and a handle is fixedly connected to the outer side of the door panel.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] 1) In the present invention, by setting up the installation component, when the device replaces the air switch, the air switch to be replaced can be disassembled by pressing the limit shaft, thereby avoiding the need to disassemble all the air switches on one side before removing it, thereby improving the maintenance and replacement efficiency of the device for the air switch, and further improving the practical performance of the device.

[0014] 2) In the present invention, by providing a heat dissipation component, when the temperature of the inner cavity of the cabinet reaches the warning temperature, the device can automatically control the contact between the conductive plate 1 and the conductive plate 2, so that the power supply supplies power to the motor, so that the fan blades discharge the hot air in the inner cavity of the cabinet to the outside through the heat dissipation port, thereby avoiding the device from reducing the service life of internal parts due to excessive temperature, and further improving the practical performance of the device.

[0015] 3) In the present invention, by providing a dustproof component, the device can automatically control the baffle to separate from the guide groove when the hot air in the cabinet cavity is discharged outward through the heat dissipation port by the fan blades, thereby facilitating the discharge of the hot air. Moreover, when the temperature is lowered to a safe temperature, the device can automatically control the guide groove to overlap with the baffle, thereby preventing external dust from entering the inner cavity of the cabinet, further improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the internal structure of the cabinet of the present invention;

[0018] Figure 3 For the present invention Figure 2 A magnified view of the structure at center;

[0019] Figure 4 It is a schematic diagram of the structure of the heat dissipation assembly of the present invention;

[0020] Figure 5 It is a cross-sectional view of the fixed sleeve structure of the present invention;

[0021] Figure 6 It is a schematic diagram of the structure of the dustproof component of the present invention;

[0022] Figure 7 It is a schematic diagram of the installation component structure of the present invention.

[0023] Explanation of the reference numerals in the figure: 1. cabinet; 2. mounting assembly; 21. U-shaped frame; 22. stop plate; 23. spring 1; 24. stop shaft; 3. mounting member; 4. heat dissipation assembly; 41. partition; 42. rotating rod; 43. fan blade; 44. driven wheel; 45. belt; 46. fixed sleeve; 47. conductive plate 1; 48. conductive plate 2; 49. power supply; 410. motor; 411. driving cone wheel 1; 412. driven cone wheel 1; 413. drive shaft; 414. driving wheel; 5 , dustproof component; 51, turntable; 52, guide groove; 53, movable shaft; 54, limit block; 55, baffle; 56, spring 2; 57, sliding seat; 58, connecting frame; 59, transmission rod; 510, driven bevel wheel 2; 511, driving bevel wheel 2; 512, linkage rod; 513, bearing frame; 6, door panel; 7, handle; 8, mounting hole; 9, heat dissipation port; 10, outgoing busbar; 11, frame switch; 12, incoming busbar; 13, metering electric meter; 14, lighting switch. DETAILED DESCRIPTION

[0024] Example: See Figure 1-7 A low-voltage power distribution cabinet for convenient switch replacement includes a cabinet 1, an inner wall of the cabinet 1 is provided with a mounting assembly 2, the outer side of the mounting assembly 2 is movably connected with a mounting member 3, the outer side of the mounting member 3 is provided with a mounting hole 8, and the mounting member 3 is clamped with the mounting assembly 2 through the mounting hole 8, the mounting member 3 is used to install the air switch, the inner cavity of the cabinet 1 is provided with a heat dissipation assembly 4, and the outer side of the cabinet 1 is provided with a heat dissipation port 9, the inner cavity of the heat dissipation port 9 is provided with a dustproof assembly 5, the dustproof assembly 5 and the heat dissipation assembly 4 are connected. The inner cavity of the cabinet 1 is located above the mounting assembly 2 and is fixedly connected to an outgoing busbar 10, a frame switch 11 is fixedly connected to the top of the outgoing busbar 10, an incoming busbar 12 is fixedly connected to the top of the frame switch 11, a metering watt-hour meter 13 is fixedly connected to the side of the incoming busbar 12, and a lighting switch 14 is fixedly connected to the bottom of the metering watt-hour meter 13. In order to facilitate the installation and removal of the air, a door panel 6 is rotatably connected to the outside of the cabinet 1, and a handle 7 is fixedly connected to the outside of the door panel 6.

[0025] The mounting assembly 2 includes a U-shaped frame 21 fixedly connected to the inner wall of the cabinet 1, a spring 23 is arranged on the inner side of the U-shaped frame 21, both ends of the spring 23 are fixedly connected to a limit plate 22, a side of the limit plate 22 away from the spring 23 is fixedly connected to a limit shaft 24, the limit shaft 24 passes through the U-shaped frame 21 and is slidably connected to the mounting hole 8, wherein, in order to facilitate the installation of 3 on 21, the diameter of the limit shaft 24 is equal to the diameter of the mounting hole 8, and the limit shaft 24 passes through the U-shaped frame 21 and is slidably connected to the mounting hole 8.

[0026] When disassembling the air switch that needs to be replaced, first, press the limit shafts 24 on both sides so that the limit shafts 24 drive the limit plates 22 fixedly connected thereto to move toward the inner side of the U-shaped frame 21. When the limit plate 22 moves, it will compress the spring 23 fixedly connected thereto, thereby disengaging the limit shaft 24 from the mounting hole 8. Then, disassemble the mounting member 3 and the air switch mounted on the mounting member 3. Repeat the above steps and install the new air switch on the U-shaped frame 21.

[0027] By setting up the installation component 2, when the device replaces the air switch, the air switch to be replaced can be disassembled by pressing the limit shaft 24, thereby avoiding the need to disassemble all the air switches on one side before removing it, thereby improving the maintenance and replacement efficiency of the device for the air switch, and further improving the practical performance of the device.

[0028] The heat dissipation assembly 4 includes a partition 41 fixedly connected to the inner wall of the cabinet 1, and the outer side of the partition 41 is rotatably connected to two rotating rods 42, one end of the rotating rod 42 is fixedly connected to a fan blade 43, and the other end of one of the rotating rods 42 is fixedly connected to a driven wheel 44, and the other end of the other rotating rod 42 is fixedly connected to a driving wheel 414, a belt 45 is sleeved between the driven wheel 44 and the driving wheel 414, and a driving assembly is arranged on the side of the driving wheel 414 away from the rotating rod 42, and the driving assembly includes a fixed sleeve 46 fixedly connected to the inner wall of the cabinet 1, and the inner cavity of the fixed sleeve 46 is arranged There is mercury, and a conductive plate 47 is placed on the liquid surface of the mercury. The outer side of the conductive plate 47 is electrically connected to a power supply 49. A conductive plate 2 48 is fixedly connected to the top wall of the fixed sleeve 46. The outer side of the conductive plate 2 48 is electrically connected to a motor 410. The power supply 49 and the motor 410 are both fixedly installed on the inner wall of the cabinet 1, and a driving bevel wheel 411 is fixedly connected to the output shaft of the motor 410. The outer side of the driving bevel wheel 411 is meshed with a driven bevel wheel 412. The outer side of the driven bevel wheel 412 is meshed with a driving shaft 413, and the driving shaft 413 is fixedly connected to the driving wheel 414.

[0029] When the temperature of the inner cavity of the cabinet 1 rises, the mercury in the inner cavity of the fixed sleeve 46 will expand due to the heat, so that the conductive plate 1 47 moves upward due to the rise of the mercury liquid level. When the temperature of the inner cavity of the cabinet 1 reaches the warning temperature, the conductive plate 1 47 will contact the conductive plate 2 48. At this time, the power supply 49 will supply power to the motor 410, so that the motor 410 drives the active bevel wheel 1 411 fixedly connected to its output shaft to rotate. When the active bevel wheel 1 411 rotates, it will drive the driven bevel wheel 1 412 meshed with it to rotate, so that the driven bevel wheel 1 412 drives the driven bevel wheel 1 412 meshed with it to rotate. The driving shaft 413 fixedly connected thereto rotates, and when the driving shaft 413 rotates, it will drive the driving wheel 414 fixedly connected thereto to rotate, so that the driving wheel 414 drives the driven wheel 44 to rotate through the belt 45, and then the driven wheel 44 and the driving wheel 414 rotate at the same time. When the driven wheel 44 and the driving wheel 414 rotate, they will respectively drive the rotating rod 42 fixedly connected thereto to rotate, so that the two rotating rods 42 respectively drive the two fan blades 43 fixedly connected thereto to rotate, and when the fan blades 43 rotate, they will discharge the hot air from the inner cavity of the cabinet 1 through the heat dissipation port 9.

[0030] By setting up the heat dissipation component 4, when the temperature of the inner cavity of the cabinet 1 reaches the warning temperature, the device can automatically control the contact between the conductive plate 1 47 and the conductive plate 2 48, so that the power supply 49 supplies power to the motor 410, so that the fan blades 43 discharge the hot air in the inner cavity of the cabinet 1 to the outside through the heat dissipation port 9, thereby avoiding the device from reducing the service life of internal parts due to excessive temperature, and further improving the practical performance of the device.

[0031] The dustproof component 5 includes a turntable 51 rotatably connected to the outside of the heat dissipation port 9, a transmission component is provided on the side close to the inner cavity of the cabinet 1, and a guide groove 52 is provided on the outer side of the turntable 51, and a movable shaft 53 is slidably connected to the inner cavity of the guide groove 52, one end of the movable shaft 53 is fixedly connected to a limit block 54, and the other end of the movable shaft 53 is fixedly connected to a baffle 55, the outer side of the baffle 55 is fixedly connected to a spring 2 56, and the end of the spring 2 56 away from the baffle 55 is fixedly connected to a sliding seat 57, and the sliding seat 57 is slidably connected to the cabinet 1, and the transmission component includes a fixed connection A connecting frame 58 is arranged on the inner wall of the cabinet 1, and a transmission rod 59 is rotatably connected to the outer side of the connecting frame 58. One end of the transmission rod 59 is fixedly connected to the guide groove 52, and the other end of the transmission rod 59 is fixedly connected to a driven bevel wheel 2 510. The outer side of the driven bevel wheel 2 510 is meshed with a driving bevel wheel 2 511. The outer side of the driving bevel wheel 2 511 is fixedly connected to a linkage rod 512. One end of the linkage rod 512 away from the driving bevel wheel 2 511 is fixedly connected to the fan blade 43, and the outer side of the linkage rod 512 is rotatably connected to a bearing frame 513, and the bearing frame 513 is fixedly connected to the cabinet 1.

[0032] When the fan blade 43 rotates, it will drive the linkage rod 512 fixedly connected thereto to rotate, so that the linkage rod 512 drives the active cone wheel 2 511 fixedly connected thereto to rotate. When the active cone wheel 2 511 rotates, it will drive the driven cone wheel 2 510 meshing therewith to rotate, so that the driven cone wheel 2 510 drives the transmission rod 59 fixedly connected thereto to rotate. When the transmission rod 59 rotates, it will drive the turntable 51 fixedly connected thereto to rotate, so that the turntable 51 drives the guide groove 52 to rotate synchronously. At this time, the movable shaft 53 will be separated from the movable shaft 53. Under the action of centrifugal force, the baffle 55 fixedly connected thereto is driven to move outward, thereby causing the baffle 55 to disengage from the guide groove 52. At this time, the hot air in the inner cavity of the cabinet 1 will be discharged through the guide groove 52. When the temperature in the inner cavity of the cabinet 1 drops to a safe temperature, the conductive plate 1 47 will disengage from the conductive plate 2 48, thereby causing the motor 410 to stop working. At this time, the baffle 55 will move to the initial position under the elastic force of the spring 2 56, thereby causing the baffle 55 to overlap with the guide groove 52 to prevent external dust from entering the inner cavity of the cabinet 1.

[0033] By providing the dustproof component 5, when the device discharges the hot air in the inner cavity of the cabinet 1 through the heat dissipation port 9 through the fan blades 43, the baffle 55 can be automatically controlled to separate from the guide groove 52, thereby facilitating the discharge of the hot air. Moreover, when the temperature is lowered to a safe temperature, the device can automatically control the guide groove 52 to overlap with the baffle 55, thereby preventing external dust from entering the inner cavity of the cabinet 1, further improving the service life of the device.

[0034] Working principle of the present invention:

[0035] When disassembling the air switch to be replaced, first, press the limit shafts 24 on both sides so that the limit shafts 24 drive the limit plates 22 fixedly connected thereto to move toward the inner side of the U-shaped frame 21. When the limit plates 22 move, they compress the spring 1 23 fixedly connected thereto, thereby disengaging the limit shaft 24 from the mounting hole 8. Then, disassemble the mounting member 3 and the air switch mounted on the mounting member 3. Repeat the above steps to install the new air switch on the U-shaped frame 21.

[0036] When the temperature of the inner cavity of the cabinet 1 rises, the mercury in the inner cavity of the fixed sleeve 46 will expand due to the heat, so that the conductive plate 1 47 moves upward due to the rise of the mercury liquid level. When the temperature of the inner cavity of the cabinet 1 reaches the warning temperature, the conductive plate 1 47 will contact the conductive plate 2 48. At this time, the power supply 49 will supply power to the motor 410, so that the motor 410 drives the active bevel wheel 1 411 fixedly connected to its output shaft to rotate. When the active bevel wheel 1 411 rotates, it will drive the driven bevel wheel 1 412 meshed with it to rotate, so that the driven bevel wheel 1 412 drives the driven bevel wheel 1 412 meshed with it to rotate. The driving shaft 413 fixedly connected thereto rotates, and when the driving shaft 413 rotates, it drives the driving wheel 414 fixedly connected thereto to rotate, so that the driving wheel 414 drives the driven wheel 44 to rotate through the belt 45, and then the driven wheel 44 and the driving wheel 414 rotate simultaneously, and when the driven wheel 44 and the driving wheel 414 rotate, they respectively drive the rotating rod 42 fixedly connected thereto to rotate, so that the two rotating rods 42 respectively drive the two fan blades 43 fixedly connected thereto to rotate, and when the fan blades 43 rotate, the hot air in the inner cavity of the cabinet 1 is discharged through the heat dissipation port 9;

[0037] When the fan blade 43 rotates, it will drive the linkage rod 512 fixedly connected thereto to rotate, so that the linkage rod 512 drives the active cone wheel 2 511 fixedly connected thereto to rotate. When the active cone wheel 2 511 rotates, it will drive the driven cone wheel 2 510 meshing therewith to rotate, so that the driven cone wheel 2 510 drives the transmission rod 59 fixedly connected thereto to rotate. When the transmission rod 59 rotates, it will drive the turntable 51 fixedly connected thereto to rotate, so that the turntable 51 drives the guide groove 52 to rotate synchronously. At this time, the movable shaft 53 will be separated from the movable shaft 53. Under the action of centrifugal force, the baffle 55 fixedly connected thereto is driven to move outward, thereby causing the baffle 55 to disengage from the guide groove 52. At this time, the hot air in the inner cavity of the cabinet 1 will be discharged through the guide groove 52. When the temperature in the inner cavity of the cabinet 1 drops to a safe temperature, the conductive plate 1 47 will disengage from the conductive plate 2 48, thereby causing the motor 410 to stop working. At this time, the baffle 55 will move to the initial position under the elastic force of the spring 2 56, thereby causing the baffle 55 to overlap with the guide groove 52 to prevent external dust from entering the inner cavity of the cabinet 1.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A low-voltage power distribution cabinet for convenient switch replacement, comprising a cabinet body (1), characterized in that: The inner wall of the cabinet (1) is provided with a mounting assembly (2), the outer side of the mounting assembly (2) is movably connected with a mounting piece (3), the outer side of the mounting piece (3) is provided with a mounting hole (8), and the mounting piece (3) is snap-connected with the mounting assembly (2) through the mounting hole (8), and the mounting piece (3) is used to install the air switch, the inner cavity of the cabinet (1) is provided with a heat dissipation assembly (4), and the outer side of the cabinet (1) is provided with a heat dissipation port (9), and the inner cavity of the heat dissipation port (9) is provided with a dustproof assembly The dustproof component (5) is connected to the heat dissipation component (4), the inner cavity of the (1) is located above the mounting component (2) and is fixedly connected to an outgoing busbar (10), a frame switch (11) is fixedly connected above the outgoing busbar (10), an incoming busbar (12) is fixedly connected above the frame switch (11), a metering watt-hour meter (13) is fixedly connected to the side of the incoming busbar (12), and a lighting switch (14) is fixedly connected below the metering watt-hour meter (13).

2. A low-voltage power distribution cabinet for convenient switch replacement according to claim 1, characterized in that: The mounting assembly (2) comprises a U-shaped frame (21) fixedly connected to the inner wall of the cabinet (1), a spring (23) being arranged on the inner side of the U-shaped frame (21), both ends of the spring (23) being fixedly connected to a limit plate (22), and a side of the limit plate (22) away from the spring (23) being fixedly connected to a limit axis (24).

3. A low-voltage power distribution cabinet for convenient switch replacement according to claim 2, characterized in that: The diameter of the limiting shaft (24) is equal to the diameter of the mounting hole (8), and the limiting shaft (24) passes through the U-shaped frame (21) and is slidably connected to the mounting hole (8).

4. A low-voltage power distribution cabinet for convenient switch replacement according to claim 1, characterized in that: The heat dissipation assembly (4) comprises a partition (41) fixedly connected to the inner wall of the cabinet (1); two rotating rods (42) are rotatably connected to the outer side of the partition (41); one end of the rotating rod (42) is fixedly connected to a fan blade (43); the other end of one of the rotating rods (42) is fixedly connected to a driven wheel (44); the other end of the other rotating rod (42) is fixedly connected to a driving wheel (414); a belt (45) is sleeved between the driven wheel (44) and the driving wheel (414); and a driving assembly is provided on the side of the driving wheel (414) away from the rotating rod (42).

5. A low-voltage power distribution cabinet for convenient switch replacement according to claim 4, characterized in that: The driving assembly comprises a fixed sleeve (46) fixedly connected to the inner wall of the cabinet (1); the inner cavity of the fixed sleeve (46) is provided with mercury; a conductive plate 1 (47) is placed on the liquid surface of the mercury; the outer side of the conductive plate 1 (47) is electrically connected to a power source (49); a conductive plate 2 (48) is fixedly connected to the top wall of the fixed sleeve (46); the outer side of the conductive plate 2 (48) is electrically connected to a motor (410); the power source (49) and the motor (410) are both fixedly mounted on the inner wall of the cabinet (1); and a driving bevel wheel 1 (411) is fixedly connected to the output shaft of the motor (410); the outer side of the driving bevel wheel 1 (411) is meshed with a driven bevel wheel 1 (412); the outer side of the driven bevel wheel 1 (412) is meshed with a driving shaft (413); and the driving shaft (413) is fixedly connected to the driving wheel (414).

6. A low-voltage power distribution cabinet for convenient switch replacement according to claim 1, characterized in that: The dustproof component (5) comprises a turntable (51) rotatably connected to the outside of the heat dissipation port (9); a transmission component is provided on the side close to the inner cavity of the cabinet (1); a guide groove (52) is provided on the outer side of the turntable (51); a movable shaft (53) is slidably connected to the inner cavity of the guide groove (52); one end of the movable shaft (53) is fixedly connected to a limit block (54); and the other end of the movable shaft (53) is fixedly connected to a baffle (55); a second spring (56) is fixedly connected to the outer side of the baffle (55); and an end of the second spring (56) away from the baffle (55) is fixedly connected to a sliding seat (57); and the sliding seat (57) is slidably connected to the cabinet (1).

7. A low-voltage power distribution cabinet for convenient switch replacement according to claim 6, characterized in that: The transmission assembly comprises a connecting frame (58) fixedly connected to the inner wall of the cabinet (1); a transmission rod (59) is rotatably connected to the outer side of the connecting frame (58); one end of the transmission rod (59) is fixedly connected to the guide groove (52); and the other end of the transmission rod (59) is fixedly connected to a driven cone wheel (510); the outer side of the driven cone wheel (510) is meshed with a driving cone wheel (511); the outer side of the driving cone wheel (511) is fixedly connected to a linkage rod (512); one end of the linkage rod (512) away from the driving cone wheel (511) is fixedly connected to the fan blade (43); and the outer side of the linkage rod (512) is rotatably connected to a bearing frame (513); and the bearing frame (513) is fixedly connected to the cabinet (1).

8. The low-voltage power distribution cabinet for convenient switch replacement according to claim 1, characterized in that: The outer side of the cabinet (1) is rotatably connected to a door panel (6), and the outer side of the door panel (6) is fixedly connected to a handle (7).

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