Dustproof low-voltage control cabinet

Abstract

The invention discloses a dustproof low-voltage control cabinet, relates to the technical field of control cabinets, and solves the problems that carbon dioxide and hydrogen sulfide cannot be filtered out by a dust filter plate, so that in a humid environment, carbon dioxide and hydrogen sulfide enter the control cabinet and corrode electronic components in the control cabinet to a certain extent. A plurality of air outlets are formed in the outer side, close to the upper end, of the control cabinet body, side covers are fixedly installed on the left side and the right side of the control cabinet body, first guide pipes are fixedly embedded in the left side wall and the right side wall of the control cabinet body, and second guide pipes are fixedly embedded in the positions, corresponding to the first guide pipes, of the outer sides of the side covers; according to the control cabinet, the filtering mechanism is installed, and an activated carbon filtering box in the filtering mechanism is located between the first guide pipe and the second guide pipe, so that carbon dioxide and hydrogen sulfide in gas entering the control cabinet body can be adsorbed, and the carbon dioxide and hydrogen sulfide are prevented from entering the control cabinet body to corrode electronic components in a humid environment.

Description

Technical Field

[0001] The invention relates to the technical field of control cabinets, in particular to a dustproof low-voltage control cabinet. Background Art

[0002] A control cabinet is a device that assembles switchgear, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to electrical wiring requirements. Its layout should meet the requirements for normal operation of the power system, facilitate maintenance, and not endanger the safety of people and surrounding equipment.

[0003] In the process of using the existing low-voltage control cabinet for oil wells, in order to prevent dust from affecting the normal operation of the electronic components inside the control cabinet, a filter plate is installed at the ventilation port of the control cabinet to filter the dust in the gas and prevent the dust from entering the control cabinet. However, during the drilling of oil wells, carbonaceous layers and coal layers are encountered. The carbon elements in these strata will release carbon dioxide during the oxidation process, and in the underground oil and gas layers, organic sulfur compounds will undergo pyrolysis under high temperature and high pressure conditions to generate hydrogen sulfide, which causes the gas around the oil well to contain carbon dioxide and hydrogen sulfide. Carbon dioxide and hydrogen sulfide cannot be filtered out by the dust filter plate, resulting in carbon dioxide and hydrogen sulfide entering the control cabinet in a humid environment, which will corrode the electronic components inside the control cabinet to a certain extent. Summary of the invention

[0004] The object of the present invention is to provide a dustproof low-voltage control cabinet to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A dustproof low-voltage control cabinet comprises a control cabinet body, wherein a plurality of air outlets are provided on the outer side of the control cabinet body near its upper end, side covers are fixedly installed on the left and right sides of the control cabinet body, a conduit 1 is fixedly embedded on the left and right side walls of the control cabinet body, a conduit 2 is fixedly embedded on the outer side of the side cover corresponding to one of the conduits, a fan is fixedly installed inside the conduit 1, a filter plate for easy removal is installed on one end of the conduit 2 located on the outer side of the side cover, a sealing door is installed on the outer side of the side cover near its lower end, a gas detection sensor is fixedly installed inside the control cabinet body, and also comprises a filtering mechanism for filtering carbon dioxide and hydrogen sulfide in the gas entering the inner side of the control cabinet body, the filtering mechanism is installed between the conduit 1 and the conduit 2, and the filtering mechanism comprises an activated carbon filter box; a blocking component for preventing the activated carbon filter box from falling, the blocking component is installed on the filtering mechanism; an ejection component for extruding the activated carbon filter box, the ejection component is installed on the side of the filtering mechanism close to the control cabinet body.

[0006] Preferably, the filtering mechanism also includes a motor fixedly mounted on the inner wall of the control cabinet body, and the driving shaft of the motor passes through the side wall of the control cabinet body, the connection between the motor, the fan and the gas detection sensor is an electrical connection, a connecting plate is fixedly sleeved on the outer side of the motor driving shaft, both ends of the connecting plate are fixedly connected with a seat, the seat is circular in shape, and the outer ring diameter of the seat is respectively larger than the outer ring diameter of the conduit one and the conduit two, a retaining ring is provided on the side of the seat close to the control cabinet body, and the retaining ring and the seat are an integrally formed structure.

[0007] Preferably, an activated carbon filter box is movably embedded inside the seat, and the connection between the activated carbon filter box and the retaining ring is a movable abutment, the activated carbon filter box can adsorb carbon dioxide and hydrogen sulfide in the gas, and a sealing assembly is installed on the outer side of one end of the conduit one and the conduit two close to the seat, the sealing assembly includes a sealing ring movably sleeved on the outer side of the conduit one or the conduit two, a rubber sleeve is fixedly connected to the side of the sealing ring away from the seat, and the inner ring diameter of the rubber sleeve is larger than the outer ring diameter of the sealing ring or the rubber sleeve.

[0008] Preferably, a positioning ring is fixedly connected to one end of the rubber sleeve away from the sealing ring, and the positioning ring is fixedly connected to the conduit one or the conduit two, a plurality of magnetic blocks one distributed equidistantly in a circle are fixedly embedded inside the sealing ring, and magnetic blocks two equal in number to the magnetic blocks one are fixedly embedded on both sides of the insert seat, and the connection between the magnetic blocks one and the magnetic blocks two is active magnetic attraction, and the mutual adsorption of the magnetic blocks one and the magnetic blocks two can make the sealing ring fit with the insert seat.

[0009] Preferably, the blocking assembly includes a pin plate movably embedded in the outer side of the seat, and the connection between the pin plate and the activated carbon filter box is a movable abutment, the side of the pin plate away from the control cabinet body is movably abutted against a limit plate, and the connection between the limit plate and the seat is a fixed connection, the limit plate can prevent the activated carbon filter box from detaching from the seat, the side profile of the limit plate is L-shaped, and two symmetrically distributed protrusions are fixedly installed on the outer side of the pin plate.

[0010] Preferably, a pin is fixedly embedded at the center of one side of the protrusion close to the limit plate, a limit straight groove is provided on the limit plate corresponding to the pin, and the pin is slidably connected to the limit plate through the limit straight groove, a spring is fixedly installed at the center of one side of the protrusion away from the activated carbon filter box, and one end of the spring away from the protrusion is fixedly connected to the limit plate, and the spring is used to drive the limit plate to move.

[0011] Preferably, a positioning shaft is fixedly embedded on one side of the pin plate close to the control cabinet body, and the positioning shaft is located on the outside of the embedding seat, a roller is movably sleeved on the outside of the positioning shaft, an arc-shaped baffle is fixedly installed on the outside of the control cabinet body, and the arc-shaped baffle is close to the lower end of the control cabinet body, both ends of the arc-shaped baffle are provided with a bevel portion 1, and the roller is in rolling contact with the edge of the arc-shaped baffle through the bevel portion 1, and the roller is used to reduce the friction resistance between the positioning shaft and the arc-shaped baffle.

[0012] Preferably, the ejection assembly is installed on the retaining ring, and the number of ejection assemblies installed on the retaining ring is two groups, and they are symmetrically distributed. The ejection assembly is located on the outside of the conduit one, and the ejection assembly includes a spline rod pluggably connected to the retaining ring, the spline rod cannot rotate in the retaining ring, and a ball is movably embedded in one end of the spline rod close to the control cabinet body.

[0013] Preferably, a washer is fixedly sleeved on the outer side of the spline rod, and the washer is close to the ball, a spring 2 is movably sleeved on the outer side of the spline rod, and the two ends of the spring 2 are respectively movably abutted against the retaining ring and the ball, and two symmetrically distributed limit blocks are fixedly installed on the outer side of the spline rod, and the limit blocks are used to prevent the spline rod from detaching from the retaining ring.

[0014] Preferably, the limit block is located at one end of the spline rod away from the control cabinet body, and arc stop block 1 and arc stop block 2 are also fixedly installed on the outside of the control cabinet body, and the upper ends of arc stop block 1 and arc stop block 2 are both provided with bevel portion 2, and the ball rollingly contacts arc stop block 1 and arc stop block 2 respectively through bevel portion 2, and arc stop block 1 and arc stop block 2 are used to drive the spline rod to move.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention installs a filtering mechanism, in which an activated carbon filter box is located between the first conduit and the second conduit, and can absorb carbon dioxide and hydrogen sulfide in the gas entering the internal gas of the control cabinet body, so as to prevent carbon dioxide and hydrogen sulfide from entering the internal gas of the control cabinet body and corroding electronic components in a humid environment. In addition, the motor can drive the two inserts to rotate, so that the activated carbon filter box can be replaced in time when the activated carbon filter box reaches a saturated state.

[0016] 2. The present invention installs a blocking component, and the pin plate in the blocking component can block the activated carbon filter box under the drive of the compression force of the spring to prevent the activated carbon filter box from escaping from the seat. When the seat rotates to the arc-shaped baffle and the roller rolls and contacts with the edge of the arc-shaped baffle, the pin plate can be moved away from the activated carbon filter box, thereby facilitating personnel to install a new activated carbon filter box.

[0017] 3. The present invention installs an ejector assembly. When the roller in the blocking assembly rolls with the edge of the arc-shaped baffle, the balls in the two ejector assemblies on the baffle roll with the arc-shaped baffle block 1 and the arc-shaped baffle block 2 respectively, which can drive the spline rod to move and eject the activated carbon filter cartridge from the seat, which is beneficial for the activated carbon filter cartridge that has reached a saturated state to automatically detach from the seat, so that personnel can intuitively see whether the activated carbon filter cartridge has been replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the present invention; Figure 2 It is a side sectional schematic diagram of the present invention; Figure 3 This is a schematic diagram of the assembly of the filter mechanism and the control cabinet body of the present invention; Figure 4 This is a schematic diagram of the control cabinet body of the present invention being removed; Figure 5 It is a schematic cross-sectional view of two sides of the catheter of the present invention; Figure 6 It is a schematic diagram of the rear side of the filtering mechanism of the present invention; Figure 7 It is a side cross-sectional schematic diagram of the filtering mechanism of the present invention; Figure 8 For the present invention Figure 6 Schematic diagram of the enlarged side section at A in the middle.

[0019] In the figure: 1. control cabinet body; 2. air outlet; 3. side cover; 4. duct 1; 5. duct 2; 6. fan; 7. filter plate; 8. sealing door; 9. motor; 10. connecting plate; 11. seat; 12. retaining ring; 13. activated carbon filter box; 14. sealing ring; 15. rubber sleeve; 16. positioning ring; 17. magnetic block 1; 18. magnetic block 2; 19. pin plate; 20. limit plate; 21. bump; 22. pin column; 23. limit straight groove; 24. spring 1; 25. positioning shaft; 26. roller; 27. arc stopper; 28. bevel part 1; 29. ​​spline rod; 30. ball; 31. washer; 32. spring 2; 33. limit block; 34. arc stopper 1; 35. arc stopper 2; 36. bevel part 2; 37. gas detection sensor. DETAILED DESCRIPTION

[0020] 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.

[0021] Example 1: Please refer to Figure 1-Figure 5 A dustproof low-voltage control cabinet shown in the figure includes a control cabinet body 1, a plurality of air outlets 2 are provided on the outer side of the control cabinet body 1 near its upper end, side covers 3 are fixedly installed on the left and right sides of the control cabinet body 1, a conduit 1 4 is fixedly embedded on the left and right side walls of the control cabinet body 1, a conduit 2 5 is fixedly embedded on the outer side of the side cover 3 corresponding to the conduit 1 4, a fan 6 is fixedly installed inside the conduit 1 4, a filter plate 7 for easy disassembly is installed on the conduit 2 5 located at one end of the outer side of the side cover 3, a sealing door 8 is installed on the outer side of the side cover 3 near its lower end, a gas detection sensor 37 is fixedly installed inside the control cabinet body 1, and also includes a filtering mechanism for filtering carbon dioxide and hydrogen sulfide in the gas entering the internal gas of the control cabinet body 1, the filtering mechanism is installed between the conduit 1 4 and the conduit 2 5, and the filtering mechanism includes an activated carbon filter box 13; a blocking component for preventing the activated carbon filter box 13 from falling, the blocking component is installed on the filtering mechanism; an ejection component for extruding the activated carbon filter box 13, and the ejection component is installed on the side of the filtering mechanism close to the control cabinet body 1.

[0022] The filtering mechanism also includes a motor 9 fixedly mounted on the inner wall of the control cabinet body 1, and the driving shaft of the motor 9 passes through the side wall of the control cabinet body 1. The connection between the motor 9, the fan 6 and the gas detection sensor 37 is an electrical connection. A connecting plate 10 is fixedly sleeved on the outer side of the driving shaft of the motor 9, and both ends of the connecting plate 10 are fixedly connected with a seat 11. The seat 11 is circular in shape, and the outer ring diameter of the seat 11 is larger than the outer ring diameter of the conduit 1 4 and the conduit 2 5 respectively. A retaining ring 12 is provided on the side of the seat 11 close to the control cabinet body 1, and the retaining ring 12 and the seat 11 are an integrally formed structure.

[0023] An activated carbon filter box 13 is movably embedded inside the seat 11, and the connection between the activated carbon filter box 13 and the retaining ring 12 is a movable abutment. The activated carbon filter box 13 can adsorb carbon dioxide and hydrogen sulfide in the gas. A sealing assembly is installed on the outer side of one end of the conduit 1 4 and the conduit 2 5 close to the seat 11. The sealing assembly includes a sealing ring 14 movably sleeved on the outer side of the conduit 1 4 or the conduit 2 5. A rubber sleeve 15 is fixedly connected to the side of the sealing ring 14 away from the seat 11, and the inner ring diameter of the rubber sleeve 15 is larger than the outer ring diameter of the sealing ring 14 or the rubber sleeve 15.

[0024] One end of the rubber sleeve 15 away from the sealing ring 14 is fixedly connected with a positioning ring 16, and the positioning ring 16 is fixedly connected to the conduit 1 4 or the conduit 2 5, and a plurality of magnetic blocks 17 equidistantly distributed in a circle are fixedly embedded inside the sealing ring 14, and both sides of the inserting seat 11 are fixedly embedded with a number of magnetic blocks 18 equal to the number of magnetic blocks 17, and the connection method between the magnetic blocks 17 and the magnetic blocks 18 is active magnetic attraction, and the mutual adsorption of the magnetic blocks 17 and the magnetic blocks 2 18 can make the sealing ring 14 fit the inserting seat 11.

[0025] Working principle: When the control cabinet body 1 is running, the fan 6 inside the conduit 1 4 is running to draw the gas into the control cabinet body 1. The gas entering the control cabinet body 1 will first be filtered by the filter plate 7, and the filter plate 7 will filter out the dust in the gas. The gas filtered by the filter plate 7 will be further filtered by the activated carbon filter box 13. The activated carbon filter box 13 can absorb carbon dioxide and hydrogen sulfide in the gas to prevent carbon dioxide and hydrogen sulfide from entering the control cabinet body 1 in a humid environment and corroding electronic components; When the activated carbon filter box 13 between duct one 4 and duct two 5 reaches a saturated state, and the gas detection sensor 37 detects that the content of carbon dioxide and hydrogen sulfide in the gas in the control cabinet body 1 is high, the fan 6 receives the signal from the gas detection sensor 37 to stop running, and the motor 9 receives the signal from the gas detection sensor 37 to start running, and the motor 9 drives the two seats 11 to rotate 180° through the connecting plate 10, so that the activated carbon filter box 13 that has reached a saturated state rotates away from duct one 4 and duct two 5, and the unused activated carbon filter box 13 will rotate to between duct one 4 and duct two 5, and continue to filter the gas entering the control cabinet body 1, so that the activated carbon filter box 13 can be replaced in time when it reaches a saturated state. Example 2: Please refer to Figure 4 , Figure 8 The present embodiment further explains the first embodiment, the blocking component includes a pin plate 19 movably embedded in the outer side of the embedding seat 11, and the connection between the pin plate 19 and the activated carbon filter box 13 is a movable abutment, the side of the pin plate 19 away from the control cabinet body 1 is movably abutted with a limit plate 20, and the connection between the limit plate 20 and the embedding seat 11 is a fixed connection, the limit plate 20 can prevent the activated carbon filter box 13 from escaping from the embedding seat 11, the side section of the limit plate 20 is L-shaped, and two symmetrically distributed protrusions 21 are fixedly installed on the outer side of the pin plate 19.

[0026] A pin 22 is fixedly embedded at the center of one side of the protrusion 21 close to the limit plate 20, and a limit straight groove 23 is opened on the limit plate 20 corresponding to the pin 22, and the pin 22 is slidably connected to the limit plate 20 through the limit straight groove 23. A spring 24 is fixedly installed at the center of one side of the protrusion 21 away from the activated carbon filter box 13, and the end of the spring 24 away from the protrusion 21 is fixedly connected to the limit plate 20, and the spring 24 is used to drive the limit plate 20 to move.

[0027] A positioning shaft 25 is fixedly embedded on one side of the pin plate 19 close to the control cabinet body 1, and the positioning shaft 25 is located on the outside of the embedding seat 11. A roller 26 is movably sleeved on the outside of the positioning shaft 25. An arc-shaped baffle 27 is fixedly installed on the outside of the control cabinet body 1, and the arc-shaped baffle 27 is close to the lower end of the control cabinet body 1. Both ends of the arc-shaped baffle 27 are provided with a bevel portion 28, and the roller 26 rolls in contact with the edge of the arc-shaped baffle 27 through the bevel portion 28. The roller 26 is used to reduce the friction resistance between the positioning shaft 25 and the arc-shaped baffle 27.

[0028] In the present embodiment: when the seat 11 drives the activated carbon filter box 13 to rotate away from the conduit 1 4 and the conduit 2 5, the roller 26 will contact the bevel portion 1 28 of the arc-shaped baffle 27 and roll along the bevel portion 1 28. During this process, the roller 26 will drive the pin plate 19 to move away from the activated carbon filter box 13. During the process of the roller 26 rolling through the bevel portion 1 28 and the outer edge of the arc-shaped baffle 27, the end of the pin plate 19 away from the roller 26 is flush with the inner wall of the seat 11, that is, the pin plate 19 will not prevent the activated carbon filter box 13 from leaving the seat 11, thereby facilitating personnel to install a new activated carbon filter box 13. Example 3: Please refer to Figure 6-Figure 8 This embodiment further explains the first embodiment. The ejection assembly is installed on the retaining ring 12. There are two groups of ejection assemblies installed on the retaining ring 12, and they are symmetrically distributed. The ejection assembly is located on the outside of the conduit 4. The ejection assembly includes a spline rod 29 that is pluggable and connected to the retaining ring 12. The spline rod 29 cannot rotate in the retaining ring 12. A ball 30 is movably embedded at one end of the spline rod 29 close to the control cabinet body 1.

[0029] A washer 31 is fixedly sleeved on the outer side of the spline rod 29, and the washer 31 is close to the ball 30. A spring 2 32 is movably sleeved on the outer side of the spline rod 29, and the two ends of the spring 2 32 are movably abutted against the retaining ring 12 and the ball 30 respectively. Two symmetrically distributed limit blocks 33 are fixedly installed on the outer side of the spline rod 29, and the limit blocks 33 are used to prevent the spline rod 29 from escaping from the retaining ring 12.

[0030] The limit block 33 is located at one end of the spline rod 29 away from the control cabinet body 1, and an arc-shaped stopper 34 and an arc-shaped stopper 35 are also fixedly installed on the outer side of the control cabinet body 1, and the upper ends of the arc-shaped stopper 34 and the arc-shaped stopper 35 are both provided with a bevel portion 36, and the ball 30 is in rolling contact with the arc-shaped stopper 34 and the arc-shaped stopper 35 through the bevel portion 36 respectively, and the arc-shaped stopper 34 and the arc-shaped stopper 35 are used to drive the spline rod 29 to move.

[0031] In this embodiment: during the rolling contact between the roller 26 and the outer edge of the arc-shaped stopper 27, the balls 30 at the ends of the two spline rods 29 respectively roll with the arc-shaped stopper 1 34 and the arc-shaped stopper 2 35 through the second bevel portion 36. During the rolling of the balls 30 along the second bevel portion 36, the spline rod 29 moves toward the activated carbon filter cartridge 13, so that during the rotation of the seat 11 to the lowermost side, the two spline rods 29 push the activated carbon filter cartridge 13 out of the seat 11, so that the activated carbon filter cartridge 13 that has reached a saturated state automatically detaches from the seat 11, so that when opening the sealing door 8, the personnel can intuitively see whether the activated carbon filter cartridge 13 has been replaced, and it is also convenient to take out the activated carbon filter cartridge 13 that has reached a saturated state from the side cover 3; When the ball 30 rotates through the straight edge of arc block 1 34 or arc block 2 35 and disengages from arc block 1 34 or arc block 2 35, the spline rod 29 will move back and reset under the drive of the compression force of spring 2 32, avoiding the spline rod 29 from blocking the activated carbon filter box 13 when personnel install a new activated carbon filter box 13.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dustproof low-voltage control cabinet, comprising a control cabinet body (1), a plurality of air outlets (2) are provided on the outer side of the control cabinet body (1) near its upper end, side covers (3) are fixedly installed on both the left and right sides of the control cabinet body (1), a conduit 1 (4) is fixedly embedded on both the left and right side walls of the control cabinet body (1), a conduit 2 (5) is fixedly embedded on the outer side of the side cover (3) corresponding to the conduit 1 (4), a fan (6) is fixedly installed inside the conduit 1 (4), a filter plate (7) that is easy to disassemble is installed on one end of the conduit 2 (5) located on the outer side of the side cover (3), a sealing door (8) is installed on the outer side of the side cover (3) near its lower end, and a gas detection sensor (37) is fixedly installed inside the control cabinet body (1), characterized in that: Also includes: A filter mechanism, used for filtering carbon dioxide and hydrogen sulfide in the gas entering the control cabinet body (1), the filter mechanism being installed between the first conduit (4) and the second conduit (5), the filter mechanism comprising an activated carbon filter box (13); A blocking component, used to prevent the activated carbon filter cartridge (13) from falling, the blocking component being mounted on the filtering mechanism; An ejector assembly is used to extrude the activated carbon filter box (13), and the ejector assembly is installed on a side of the filter mechanism close to the control cabinet body (1).

2. A dustproof low-voltage control cabinet according to claim 1, characterized in that: The filtering mechanism further comprises a motor (9) fixedly mounted on the inner wall of the control cabinet body (1), and the drive shaft of the motor (9) passes through the side wall of the control cabinet body (1); the motor (9), the fan (6) and the gas detection sensor (37) are connected in an electrical manner; a connecting plate (10) is fixedly sleeved on the outer side of the drive shaft of the motor (9); both ends of the connecting plate (10) are fixedly connected with a seat (11); and the outer diameter of the seat (11) is larger than the outer diameter of the conduit 1 (4) and the outer diameter of the conduit 2 (5); a retaining ring (12) is provided on a side of the seat (11) close to the control cabinet body (1), and the retaining ring (12) and the seat (11) are an integrally formed structure.

3. A dustproof low-voltage control cabinet according to claim 2, characterized in that: An activated carbon filter cartridge (13) is movably embedded in the interior of the insert (11), and the activated carbon filter cartridge (13) is connected to the retaining ring (12) in a movable abutment manner. A sealing assembly is installed on the outer side of one end of the conduit 1 (4) and the conduit 2 (5) close to the insert (11), and the sealing assembly comprises a sealing ring (14) movably sleeved on the outer side of the conduit 1 (4) or the conduit 2 (5). A rubber sleeve (15) is fixedly connected to the side of the sealing ring (14) away from the insert (11), and the inner diameter of the rubber sleeve (15) is larger than the outer diameter of the sealing ring (14) or the rubber sleeve (15).

4. A dustproof low-voltage control cabinet according to claim 3, characterized in that: The end of the rubber sleeve (15) away from the sealing ring (14) is fixedly connected to a positioning ring (16), and the positioning ring (16) is fixedly connected to the conduit one (4) or the conduit two (5), and a plurality of magnetic blocks one (17) distributed equidistantly in a circle are fixedly embedded inside the sealing ring (14), and the two sides of the embedding seat (11) are fixedly embedded with a number of magnetic blocks two (18) equal to the number of magnetic blocks one (17), and the connection between the magnetic blocks one (17) and the magnetic blocks two (18) is active magnetic attraction.

5. The dustproof low-voltage control cabinet according to claim 2, characterized in that: The blocking assembly comprises a pin plate (19) movably embedded in the outer side of the embedding seat (11), and the connection between the pin plate (19) and the activated carbon filter box (13) is a movable abutment, the side of the pin plate (19) away from the control cabinet body (1) is movably abutted against a limit plate (20), and the connection between the limit plate (20) and the embedding seat (11) is a fixed connection, the side section of the limit plate (20) is L-shaped, and two symmetrically distributed protrusions (21) are fixedly installed on the outer side of the pin plate (19).

6. A dustproof low-voltage control cabinet according to claim 5, characterized in that: A pin column (22) is fixedly embedded at the center of one side of the protrusion (21) close to the limiting plate (20), a limiting straight groove (23) is provided on the limiting plate (20) corresponding to the pin column (22), and the pin column (22) is slidably connected to the limiting plate (20) through the limiting straight groove (23), and a spring 1 (24) is fixedly installed at the center of one side of the protrusion (21) away from the activated carbon filter box (13), and one end of the spring 1 (24) away from the protrusion (21) is fixedly connected to the limiting plate (20).

7. A dustproof low-voltage control cabinet according to claim 6, characterized in that: A positioning shaft (25) is fixedly embedded on one side of the pin plate (19) close to the control cabinet body (1), and the positioning shaft (25) is located on the outside of the embedding seat (11). A roller (26) is movably sleeved on the outside of the positioning shaft (25). An arc-shaped baffle (27) is fixedly installed on the outside of the control cabinet body (1), and the arc-shaped baffle (27) is close to the lower end of the control cabinet body (1). Both ends of the arc-shaped baffle (27) are provided with a bevel portion (28), and the roller (26) is in rolling contact with the edge of the arc-shaped baffle (27) through the bevel portion (28).

8. The dustproof low-voltage control cabinet according to claim 2, characterized in that: The ejector assembly is mounted on the retaining ring (12). The number of ejector assemblies mounted on the retaining ring (12) is two and they are symmetrically distributed. The ejector assembly is located outside the conduit 1 (4). The ejector assembly comprises a spline rod (29) pluggably connected to the retaining ring (12). A ball (30) is movably embedded at one end of the spline rod (29) close to the control cabinet body (1).

9. A dustproof low-voltage control cabinet according to claim 8, characterized in that: A washer (31) is fixedly sleeved on the outer side of the spline rod (29), and the washer (31) is close to the ball (30). A second spring (32) is movably sleeved on the outer side of the spline rod (29), and the two ends of the second spring (32) are movably abutted against the retaining ring (12) and the ball (30) respectively. Two symmetrically distributed limit blocks (33) are fixedly mounted on the outer side of the spline rod (29).

10. A dustproof low-voltage control cabinet according to claim 9, characterized in that: The limit block (33) is located at one end of the spline rod (29) away from the control cabinet body (1), and an arc-shaped stopper 1 (34) and an arc-shaped stopper 2 (35) are fixedly mounted on the outer side of the control cabinet body (1), and the upper ends of the arc-shaped stopper 1 (34) and the arc-shaped stopper 2 (35) are both provided with a second bevel portion (36), and the ball (30) is in rolling contact with the arc-shaped stopper 1 (34) and the arc-shaped stopper 2 (35) respectively through the second bevel portion (36).

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