A dustproof low-pressure cabinet with a quick-release filter

Abstract

This invention discloses a dustproof low-pressure cabinet with a quickly removable filter, comprising a cabinet body, a protective shell on the side of the cabinet body, ventilation holes on the protective shell, and a filter section inside the protective shell. An air inlet and a latch are provided on the side wall of the cabinet body corresponding to the protective shell. A cooling fan is provided inside the air inlet. The filter section includes a first filter, a second filter, a transmission mechanism, and a cleaning mechanism. In this invention, by setting up a filter section with interchangeable first and second filters, the filters can be quickly replaced. Furthermore, used filters can be directly removed without tools, thereby improving the efficiency of filter replacement and preventing dust from entering the low-pressure cabinet during filter replacement, thus ensuring the stable dustproof effect of the low-pressure cabinet.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and in particular to a dustproof low-voltage switchgear with a quick-release filter. Background Technology

[0002] A switchgear is an electrical device. External power lines first enter the main control switch inside the cabinet, then the branch control switches, with each branch circuit configured according to its needs. These include instruments, automatic control systems, motor magnetic switches, various AC contactors, etc. Some switchgear also have high-voltage and low-voltage compartments. The main function of switchgear is to open, close, control, and protect electrical equipment during the power generation, transmission, distribution, and energy conversion processes in a power system. Traditional low-voltage switchgear, especially those used for traffic lights and streetlights along highways, tends to generate significant heat over long periods. A heat dissipation device is needed to remove this heat. To reduce damage from roadside dust, filters are required. However, over time, dust accumulates on these filters, severely affecting airflow and thus the cooling effect. Therefore, the filters need to be replaced. Summary of the Invention

[0003] The purpose of this invention is to provide a dustproof low-pressure cabinet with a quickly detachable filter screen in order to solve the above-mentioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A dustproof low-pressure cabinet with a quickly removable filter includes a cabinet body. A protective shell is provided on the side of the cabinet body, and the protective shell has ventilation holes. A filter section is located inside the protective shell. An air inlet and a latch are provided on the side wall of the cabinet body corresponding to the protective shell. A cooling fan is provided inside the air inlet. The filter section includes a first filter, a second filter, a transmission mechanism, and a cleaning mechanism. The transmission mechanism includes a drive assembly, a horizontal movement assembly, and a vertical movement assembly. The drive assembly includes a drive element and a transmission shaft. The drive element has two output ends, each with a drive shaft. Worms are provided at the end of the drive shaft furthest from the drive element and at both ends of the transmission shaft. The drive shaft and transmission shaft are equipped with... The drive shaft and transmission shaft each have a rotating wheel, and a transmission belt is provided between two corresponding rotating wheels. The horizontal moving component includes a slide rod and a first slide rail. The slide rod passes through the first slide rail, and the first filter screen is slidably connected to the first slide rail. Both ends of the first slide rail are provided with racks, and the racks are meshed with gears. A worm gear is coaxially provided on one side of the gear, and the worm gear and worm mesh with each other. The vertical moving component includes a second slide rail, an elastic telescopic member, and a winding shaft. A slide block is slidably provided on the second slide rail, and the slide block is fixedly connected to the telescopic end of the elastic telescopic member. The winding shaft is coaxially provided with the gear, and a traction rope is wound on the winding shaft. Both ends of the traction rope are fixedly connected to the winding shaft and the slide block, respectively.

[0006] Preferably, both the first filter and the second filter include a mesh surface and an outer frame. The outer frame of the second filter is provided with a groove, and a first elastic element and a locking block are provided in the groove. The slide is provided with a locking groove that cooperates with the locking block.

[0007] Preferably, there are two horizontal moving components and two vertical moving components. The first filter is located between the two horizontal moving components, and the second filter is located between the two vertical moving components. There are two second filters, which are respectively located on the upper and lower sides of the first filter.

[0008] Preferably, the slide rod is arranged horizontally, the first slide rail, the second slide rail, and the elastic telescopic member are all arranged vertically, the slide rod, the second slide rail, the elastic telescopic member, and the driving member are all fixedly connected to the cabinet, the gear is fixedly connected to the winding shaft and the worm gear, and the worm gear is rotatably connected to the cabinet.

[0009] Preferably, the card block is slidably connected to the groove, and the contact surfaces of the card block and the groove are both arc-shaped structures.

[0010] Preferably, the cleaning mechanism includes a fixed base, a guide groove is provided on the fixed base, a guide rod is provided through the guide groove, and a connecting plate and a cleaning brush are respectively provided at both ends of the guide rod.

[0011] Preferably, a sliding sleeve is fitted on the guide rod, a second elastic element is provided on the sliding sleeve, and the end of the second elastic element away from the sliding sleeve is fixedly connected to the fixed seat. A first magnet is provided on the connecting plate, and a plurality of second magnets are provided on the inner wall of the protective shell. The plurality of second magnets are arranged at equal intervals along the horizontal direction, and the plurality of second magnets are all located above the first magnet.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0013] 1. This application incorporates a filter section with a first and a second filter that can be replaced alternately. This allows for quick filter replacement, and used filters can be directly removed without tools, thereby improving filter replacement efficiency and preventing dust from easily entering the low-pressure cabinet during filter replacement, thus ensuring the stable dustproof performance of the low-pressure cabinet.

[0014] 2. This application incorporates a cleaning mechanism mounted on a transmission belt. The transmission belt moves with the drive component, thereby moving the cleaning mechanism. The cleaning mechanism is equipped with a cleaning brush that can scrape against the surface of the filter screen, removing some of the dust adhering to the filter screen. Simultaneously, the cleaning mechanism is equipped with a first magnet and a second magnet, which cause the cleaning brush to vibrate up and down under magnetic attraction. By increasing the direction of movement of the cleaning brush, the dust on the filter screen is more easily removed. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of the low-voltage switchgear provided according to an embodiment of the present invention is shown;

[0016] Figure 2 A schematic diagram of the internal structure of the protective shell provided according to an embodiment of the present invention is shown;

[0017] Figure 3 A schematic diagram of the filter section structure provided according to an embodiment of the present invention is shown;

[0018] Figure 4 A schematic diagram of the first and second filter structures provided according to an embodiment of the present invention is shown;

[0019] Figure 5 A schematic diagram of the connection structure between the slide and the second filter screen according to an embodiment of the present invention is shown;

[0020] Figure 6 A schematic diagram of a cleaning mechanism structure provided according to an embodiment of the present invention is shown;

[0021] Figure 7 It shows Figure 6 A magnified structural diagram of point A in the middle.

[0022] Legend:

[0023] 1. Cabinet; 2. Protective shell; 3. Ventilation hole; 4. Air inlet; 5. Cooling fan; 6. Buckle; 7. Slide rod; 8. First slide rail; 9. First filter screen; 10. Rack; 11. Gear; 12. Second slide rail; 13. Slide base; 14. Elastic telescopic component; 15. Second filter screen; 16. Groove; 17. First elastic component; 18. Locking block; 19. Locking slot; 20. Winding shaft; 21. Traction rope; 22. Drive component; 23. Drive shaft; 24. Worm gear; 25. Worm wheel; 26. Rotary wheel; 27. Transmission belt; 28. Fixed base; 29. ​​Guide groove; 30. Guide rod; 31. Connecting plate; 32. First magnet; 33. Second magnet; 34. Sliding sleeve; 35. Second elastic component; 36. Cleaning brush; 37. Transmission shaft. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-7 The present invention provides a technical solution:

[0026] A dustproof low-pressure cabinet with a quick-release filter includes a cabinet body 1. A protective shell 2 is provided on the side of the cabinet body 1. The protective shell 2 has ventilation holes 3 and a filter section is located inside the protective shell 2. Air inlets 4 and clips 6 are provided on the side walls of the cabinet body 1 corresponding to the protective shell 2. A cooling fan 5 is located inside the air inlet 4. The filter section includes a first filter 9, a second filter 15, a transmission mechanism, and a cleaning mechanism. The transmission mechanism includes a drive assembly, a horizontal movement assembly, and a vertical movement assembly. The drive assembly includes a drive component 22 and a transmission shaft 37. The drive component 22 has two output ends, each with a drive shaft 23. Worms 24 are provided at the end of the drive shaft 23 furthest from the drive component 22 and at both ends of the transmission shaft 37. Rotary wheels 26 are provided on both the drive shaft 23 and the transmission shaft 37. A transmission belt 27 is provided between two corresponding rotating wheels 26 on shaft 23 and transmission shaft 37; the horizontal moving assembly includes a slide rod 7 and a first slide rail 8, the slide rod 7 passes through the first slide rail 8, the first filter screen 9 is slidably connected to the first slide rail 8, both ends of the first slide rail 8 are provided with racks 10, the racks 10 are meshed with gears 11, one side of the gear 11 is coaxially provided with a worm gear 25, and the worm gear 25 is meshed with the worm 24; the vertical moving assembly includes a second slide rail 12, an elastic telescopic member 14 and a winding shaft 20, a slide seat 13 is slidably provided on the second slide rail 12, the slide seat 13 is fixedly connected to the telescopic end of the elastic telescopic member 14, the winding shaft 20 is coaxially provided with the gear 11, and a traction rope 21 is wound on the winding shaft 20, the two ends of the traction rope 21 are fixedly connected to the winding shaft 20 and the slide seat 13 respectively.

[0027] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, both the first filter screen 9 and the second filter screen 15 include a mesh surface and an outer frame. A groove 16 is provided inside the outer frame of the second filter screen 15, and a first elastic element 17 and a locking block 18 are provided inside the groove 16. A slot 19 that mates with the locking block 18 is provided on the slide block 13. Two horizontal and two vertical moving components are provided. The first filter screen 9 is located between the two horizontal moving components, and the second filter screen 15 is located between the two vertical moving components. There are two second filter screens 15, respectively located on the upper and lower sides of the first filter screen 9. The slide rod 7 is arranged horizontally, while the first slide rail 8, the second slide rail 12, and the elastic telescopic element 14 are all arranged vertically. The slide rod 7, the second slide rail 12, the elastic telescopic element 14, and the driving element 22 are all fixedly connected to the cabinet body 1. The gear 11 is fixedly connected to the winding shaft 20 and the worm gear 25, and the worm gear 25 is rotatably connected to the cabinet body 1. The locking block 18 is slidably connected to the groove 16, and the contact surfaces of the locking block 18 and the groove 19 are both arc-shaped structures. The first filter 9 and the second filter 15 can be switched between each other. The first filter 9 can slide out from the first slide rail 8, and the second filter 15 is installed on the slide block 13 through the cooperation of the locking block 18 and the groove 19. In summary, the first filter 9 and the second filter 15 are easy to disassemble, clean, and replace, and at the same time, it is not easy for dust to enter the cabinet 1 when switching.

[0028] Specifically, such as Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the cleaning mechanism includes a fixed base 28, on which a guide groove 29 is provided. A guide rod 30 is inserted through the guide groove 29. A connecting plate 31 and a cleaning brush 36 are respectively provided at both ends of the guide rod 30. A sliding sleeve 34 is fitted on the guide rod 30. A second elastic element 35 is provided on the sliding sleeve 34, and the end of the second elastic element 35 away from the sliding sleeve 34 is fixedly connected to the fixed base 28. A first magnet 32 ​​is provided on the connecting plate 31. A plurality of second magnets 33 are provided on the inner wall of the protective shell 2. The plurality of second magnets 33 are equally spaced in the horizontal direction, and all of the plurality of second magnets 33 are located above the first magnet 32. When the drive unit 22 is running, the fixed base 28 moves horizontally via the transmission belt 27. The cleaning brush 36 scrapes along the surface of the filter screen, removing the attached dust. Simultaneously with the horizontal movement, the first magnet 32 ​​and the second magnet 33 attract each other, allowing the guide rod 30 to move along the guide groove 29, causing the cleaning brush 36 to vibrate up and down. The second elastic element 35 assists in the vibration of the cleaning brush 36. The guide rod 30 can move along the sliding sleeve 34, allowing the cleaning brush 36 to adhere to the first filter screen 9 and the second filter screen 15. Therefore, this device can clean the filter screens.

[0029] In summary, the dustproof low-pressure cabinet with a quickly removable filter provided in this embodiment allows for disassembly by removing the protective shell 2, activating the drive unit 22, which drives the worm gear 24 to rotate, further driving the worm wheel 25 to rotate. The gear 11 and the winding shaft 20 rotate synchronously, and the gear 11 drives the rack 10 to move, causing the first slide rail 8 to move along the slide rod 7, moving the first filter 9 away from the air inlet 4. The winding shaft 20 winds up the traction rope 21, which pulls the slide block 13, causing the upper and lower second filters to move. The two second filters 15 move closer together until they merge and cover the air inlet 4. The first filter 9 can then slide off the first slide rail 8 for replacement. Next, the drive component 22 reverses, which causes the gear 11 to reverse, the traction rope 21 to loosen, and the elastic telescopic component 14 to drive the slide block 13 to move along the second slide rail 12, causing the two second filters 15 to separate from each other until the first filter 9 covers the air inlet 4. In summary, the first filter 9 and the second filter 15 can be switched quickly to ensure smooth heat dissipation and ventilation of the cabinet 1.

[0030] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dustproof low-voltage cabinet with a quickly detachable filter screen, comprising a cabinet body (1), characterized in that, The side of the cabinet (1) is provided with a protective shell (2), the protective shell (2) is provided with air holes (3), and the inside of the protective shell (2) is provided with a filter part, the side wall of the cabinet (1) corresponding to the protective shell (2) is provided with an air inlet (4) and a buckle (6), the inner side of the air inlet (4) is provided with a cooling fan (5), and the filter part comprises a first filter screen (9), a second filter screen (15), a transmission mechanism and a cleaning mechanism. The transmission mechanism comprises a driving assembly, a horizontal moving assembly and a vertical moving assembly. The driving assembly comprises a driving member (22) and a transmission shaft (37), the driving member (22) is provided with two output ends, and driving shafts (23) are arranged on the two output ends, one end of the driving shaft (23) away from the driving member (22) and two ends of the transmission shaft (37) are provided with worms (24), rotating wheels (26) are arranged on the driving shaft (23) and the transmission shaft (37), and transmission belts (27) are arranged between the two rotating wheels (26) corresponding to the driving shaft (23) and the transmission shaft (37). The horizontal moving assembly comprises a sliding rod (7) and a first sliding rail (8), the sliding rod (7) penetrates through the first sliding rail (8), the first filter screen (9) is in sliding connection with the first sliding rail (8), both ends of the first sliding rail (8) are provided with racks (10), the racks (10) are in meshing connection with gears (11), one side of the gear (11) is coaxially provided with a worm wheel (25), and the worm wheel (25) and the worm (24) are mutually engaged. The vertical moving assembly comprises a second sliding rail (12), an elastic telescopic member (14) and a winding shaft (20), a sliding seat (13) is slidably arranged on the second sliding rail (12), the sliding seat (13) is fixedly connected with the telescopic end of the elastic telescopic member (14), the winding shaft (20) is coaxially arranged with the gear (11), and a traction rope (21) is wound on the winding shaft (20), and both ends of the traction rope (21) are fixedly connected with the winding shaft (20) and the sliding seat (13) respectively.

2. The dustproof low-voltage cabinet with quickly detachable filter screen according to claim 1, characterized in that, The first filter screen (9) and the second filter screen (15) both comprise a mesh surface and an outer frame, the outer frame of the second filter screen (15) is provided with a groove (16), the groove (16) is provided with a first elastic member (17) and a clamping block (18), and the sliding seat (13) is provided with a clamping groove (19) matched with the clamping block (18).

3. The dustproof low-voltage cabinet with quickly detachable filter screen according to claim 1, characterized in that, The horizontal moving assembly and the vertical moving assembly are both provided with two, the first filter screen (9) is located between the two horizontal moving assemblies, the second filter screen (15) is located between the two vertical moving assemblies, the second filter screen (15) is provided with two and is arranged on the upper and lower sides of the first filter screen (9) respectively.

4. The dustproof low-voltage cabinet with quickly detachable filter screen according to claim 1, characterized in that, The slide rod (7) is arranged along a horizontal direction, the first slide rail (8), the second slide rail (12) and the elastic telescopic piece (14) are all arranged along a vertical direction, the slide rod (7), the second slide rail (12), the elastic telescopic piece (14) and the driving piece (22) are all fixedly connected with the cabinet body (1), the gear (11) is fixedly connected with the bobbin (20) and the worm wheel (25), and the worm wheel (25) is rotationally connected with the cabinet body (1).

5. The dustproof low-voltage cabinet with quickly detachable filter screen according to claim 2, characterized in that, The clamping block (18) is slidably connected with the groove (16), and the abutting surfaces of the clamping block (18) and the clamping groove (19) are both in circular arc structures.

6. The dustproof low-voltage cabinet with quickly detachable filter screen according to claim 1, characterized in that, The cleaning mechanism comprises a fixing seat (28), a guide through slot (29) is arranged on the fixing seat (28), a guide rod (30) is penetratingly arranged in the guide through slot (29), and a connecting plate (31) and a cleaning brush (36) are respectively arranged at two ends of the guide rod (30).

7. The dustproof low-voltage cabinet with quickly detachable filter screen according to claim 6, characterized in that, A sliding sleeve (34) is sleeved on the guide rod (30), a second elastic piece (35) is arranged on the sliding sleeve (34), one end of the second elastic piece (35) away from the sliding sleeve (34) is fixedly connected with the fixing seat (28), a first magnet (32) is arranged on the connecting plate (31), a plurality of second magnets (33) are arranged on the inner wall of the protective shell (2), the plurality of second magnets (33) are equidistantly arranged along a horizontal direction, and the plurality of second magnets (33) are all located above the first magnet (32).

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