Ventilation device for gas prevention and ventilation method thereof

Abstract

The application discloses a ventilation device for gas prevention and control and a ventilation method thereof, and belongs to the technical field of ventilation, which comprises a supporting assembly for supporting a ventilation assembly; the ventilation assembly is used for ventilation work; a dust filtering assembly is used for filtering dust in air; a lifting assembly is used for lifting and supporting the dust filtering assembly; and an extrusion assembly is used for extruding the dust filtering assembly to open the dust filtering assembly and cooperate with the ventilation assembly to perform ventilation work. When the dust in the dust filtering box is collected to the full capacity, the motor is started to drive the rotating rod to rotate, the rotating rod drives the gear to rotate, the gear drives the rack to move, the rack drives the connecting frame to move, the moving ring slides on the supporting column, and the dust filtering box is lowered, the main extrusion block is away from the auxiliary extrusion block, the first spring is reset, and the guide ring slides on the guide rod.

Description

Technical Field

[0001] This invention relates to a ventilation device, and more particularly to a ventilation device and ventilation method for gas control, belonging to the field of ventilation technology. Background Technology

[0002] A mine shaft is the collective term for the shafts, chambers, equipment, surface buildings, and structures that form an underground coal mine production system. Located deep underground, mine shafts contain a large amount of toxic gases such as methane and have a low oxygen concentration, which can easily threaten the lives of workers during construction and pose significant safety hazards. In order to dilute and remove toxic and harmful gases and dust from the mine shaft and ensure the safe production of workers, it is necessary to improve the underground environment through methane control equipment.

[0003] Existing ventilation systems used for gas control require disassembly when the dust collection box is full. Disassembly is inconvenient as it requires workers to use specialized tools to remove multiple bolts. Furthermore, the disassembled dust collection box needs to be transported to a dust collection point to empty the dust. During this process, dust can easily escape from the dust collection box and be inhaled by workers, potentially causing harm to their health. Summary of the Invention

[0004] The main objective of this invention is to solve the problems of inconvenient disassembly of the dust filter box and inconvenient sealed storage of dust, and to provide a ventilation device and ventilation method for gas control.

[0005] The objective of this invention can be achieved by adopting the following technical solution: A ventilation device and ventilation method for gas control, comprising: Support components are used to support the ventilation components; Ventilation components, used for ventilation operations; Dust filter assembly, used to filter dust in the air; The lifting assembly is used to lift and support the dust filter assembly; The squeezing assembly is used to squeeze the dust filter assembly to open it, so that the dust filter assembly can work in conjunction with the ventilation assembly to perform ventilation. A sealing component is used to seal the bottom of the dust filter assembly; Driver components are used to drive moving components; The moving component, driven by the extrusion component, opens the dust filter component.

[0006] Preferably, the support assembly includes a base plate, a support column, a support frame, and an electromagnet; A support column is installed on the base plate, a support frame is installed at one end of the support column, and an electromagnet is installed on the base plate.

[0007] Preferably, the ventilation assembly includes a ventilation box and a fan; A ventilation box is installed on the support frame, and a fan is installed on the ventilation box.

[0008] Preferably, the lifting assembly includes a connecting frame, a side bar, a mounting frame, a first connecting post, and a movable ring; A movable ring is slidably mounted on the support column, a first connecting column is mounted on the movable ring, an installation frame is mounted on one end of the first connecting column, a side rod is mounted on the installation frame, and the connecting frame is mounted on the side rod.

[0009] Preferably, the dust filtration assembly includes a dust filtration box, a plug block, a retaining ball, a sealing plate, a main extrusion block, a bottom rod, a first support rod, a guide ring, a first spring, a guide rod, a connecting plate, a mounting block, a second spring, and a filter screen; A dust filter box is detachably mounted on the connecting frame. A guide rod is mounted on the dust filter box. A connecting plate is mounted on one end of the guide rod. An installation block is mounted on the connecting plate. An installation groove that mates with the installation block is opened on the mounting frame. A guide ring is slidably mounted on the guide rod. A first support rod is mounted on the guide ring. A closing plate is mounted on one end of the first support rod. A bottom rod is mounted on the guide ring. A main extrusion block is mounted on one end of the bottom rod. The guide ring is connected to the guide rod by a first spring. An insertion block is mounted at the bottom of the dust filter box. A cavity is opened on the insertion block. A second spring is installed inside the cavity. A retaining ball is mounted on one end of the second spring. A through hole is opened at the bottom of the dust filter box. A filter screen, which is a V-shaped filter screen, is installed inside the dust filter box.

[0010] Preferably, the extrusion assembly includes an auxiliary extrusion block, a second connecting column, and a top rod; A top rod is installed on the support frame, and an auxiliary extrusion block is installed at one end of the top rod. The top rod is installed on the auxiliary extrusion block.

[0011] Preferably, the enclosure assembly includes a blocking plate and an iron block; A blocking plate is installed on the base plate, and an iron block that cooperates with the electromagnet is installed at the bottom of the blocking plate. A slot that cooperates with the insert block is opened on the blocking plate, and a slot that cooperates with the locking ball is opened on the inner wall of the slot.

[0012] Preferably, the drive assembly includes a motor, an outer frame, and a base column; A base column is mounted on the base plate, an outer frame is mounted on one end of the base column, and a motor is mounted on the outer frame.

[0013] Preferably, the moving assembly includes a rack, a second support rod, a gear, a support ring, a base leg, and a rotating rod; A base leg is mounted on the base plate, a support ring is mounted on one end of the base leg, a rotating rod is rotatably mounted on the support ring, one end of the rotating rod is connected to the output end of the motor, a gear is mounted on the rotating rod, a second support rod is mounted on the connecting frame, and a rack that meshes with the gear is mounted on one end of the second support rod.

[0014] A ventilation method for a ventilation device used for gas control includes the following steps: Step 1: The electromagnet is activated to attract and fix the blocking plate. The motor starts and drives the rotating rod to rotate. When the rotating rod rotates, it drives the gear to rotate. When the gear rotates, it drives the rack to move. When the rack moves, it drives the connecting frame to move. The moving ring slides on the support column, which in turn drives the dust box to rise. When the auxiliary extrusion block contacts the main extrusion block, the dust box continues to rise. The auxiliary extrusion block squeezes the main extrusion block, which in turn drives the guide ring to slide on the guide rod, which in turn drives the sealing plate to move and open the dust box. At this time, the dust box continues to rise and connects to the bottom of the ventilation box. Step 2: The fan starts to draw outside air into the ventilation box, which then transports it to the dust filter box. After being filtered through the filter screen, the air is discharged through the through-hole at the bottom of the dust filter box, thus circulating the air and providing ventilation. Step 3: When the dust collection box is full, the motor starts and drives the rotating rod to rotate. The rotating rod drives the gear to rotate, which in turn drives the rack to move. The rack moves and drives the connecting frame to move. The moving ring slides on the support column, which in turn drives the dust collection box to descend. At this time, the main extrusion block moves away from the auxiliary extrusion block, the first spring returns to its original position, and the guide ring slides on the guide rod, which in turn drives the sealing plate to return to its original position and close the dust collection box. The dust collection box continues to descend, inserting the insert block into the slot on the blocking plate. The locking ball is inserted into the slot, closing the through hole at the bottom of the dust collection box. At this time, the electromagnet turns off, and the worker lifts the dust collection box, slides the mounting block out of the mounting slot, and disassembles and moves the full dust collection box.

[0015] Beneficial technical effects of the present invention: 1. According to the ventilation device and ventilation method for gas control of the present invention, by setting a sealing plate, when the dust in the dust filter box is full, the motor starts and drives the rotating rod to rotate. When the rotating rod rotates, it drives the gear to rotate. When the gear rotates, it drives the rack to move. When the rack moves, it drives the connecting frame to move. The moving ring slides on the support column, which in turn drives the dust filter box to descend. At this time, the main extrusion block moves away from the auxiliary extrusion block, the first spring returns to its original position, which in turn drives the guide ring to slide on the guide rod, which in turn drives the sealing plate to return to its original position and close the dust filter box. The dust filter box continues to descend, inserting the insert block into the slot on the blocking plate. The locking ball is locked into the slot, closing the through hole at the bottom of the dust filter box. At this time, the electromagnet is turned off, and the dust filter box can be sealed when it is moved, which can prevent dust from floating out and causing harm to the workers. Moreover, the dust filter box does not need to be manually closed by the workers, which reduces the workload of the workers.

[0016] 2. By setting up the installation block, the staff can lift the dust filter box and slide the installation block out of the installation slot, which allows for the disassembly and transportation of the full dust filter box without the need for manual disassembly by the staff. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the rack structure of the present invention; Figure 3 This is a schematic diagram of the auxiliary extrusion block structure of the present invention; Figure 4 This is a schematic diagram of the insert structure of the present invention; Figure 5 This is a schematic diagram of the closed plate structure of the present invention; Figure 6 This is a schematic diagram of the motor structure of the present invention; Figure 7 This is a schematic diagram of the mounting block structure of the present invention; Figure 8 This is a schematic diagram of the iron block structure of the present invention; Figure 9 This is a schematic diagram of the second spring structure of the present invention; Figure 10 This is a schematic diagram of the filter structure of the present invention; Figure 11 This is a schematic diagram of the electromagnet structure of the present invention; Figure 12 This is a schematic diagram of the dust filter box structure of the present invention.

[0018] In the diagram: 1. Base plate; 11. Support column; 12. Support frame; 13. Electromagnet; 2. Ventilation box; 21. Fan; 3. Dust filter box; 31. Insert block; 32. Ball clamp; 33. Sealing plate; 34. Main extrusion block; 35. Bottom rod; 36. First support rod; 37. Guide ring; 38. First spring; 39. Guide rod; 391. Connecting plate; 392. Mounting block; 393. Second spring; 394. Filter screen; 4. Connecting frame; 41. Side rod; 42. Mounting frame; 43. First connecting column; 44. Moving ring; 5. Auxiliary extrusion block; 51. Second connecting column; 52. Top rod; 6. Blocking plate; 61. Iron block; 7. Motor; 71. Outer frame; 72. Bottom column; 8. Rack; 81. Second support rod; 82. Gear; 83. Support ring; 84. Bottom leg; 85. Rotating rod. Detailed Implementation

[0019] To enable those skilled in the art to understand the technical solution of the present invention more clearly, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0020] like Figures 1-11 As shown, the ventilation device and ventilation method for gas control provided in this embodiment include a support assembly for supporting the ventilation assembly; a ventilation assembly for performing ventilation; a dust filter assembly for filtering dust in the air; a lifting assembly for supporting the dust filter assembly; a squeezing assembly for squeezing the dust filter assembly to open the dust filter assembly to cooperate with the ventilation assembly for ventilation; a sealing assembly for sealing the bottom of the dust filter assembly; a driving assembly for driving the moving assembly; and a moving assembly that drives the moving assembly to cooperate with the squeezing assembly to open the dust filter assembly. The support assembly includes a base plate 1, a support column 11, a support frame 12, and an electromagnet 13. The support column 11 is mounted on the base plate 1, and the support frame 12 is mounted at one end of the support column 11. The electromagnet 13 is mounted on the base plate 1. The support column 11 and support frame 12 facilitate support for the ventilation box 2. The ventilation assembly includes a ventilation box 2 and a fan 21. The ventilation box 2 is mounted on the support frame 12, and the fan 21 is mounted on the ventilation box 2. The fan 21, when activated, facilitates ventilation. The lifting assembly includes... The system includes a connecting frame 4, a side rod 41, a mounting frame 42, a first connecting column 43, and a moving ring 44. A moving ring 44 is slidably mounted on the support column 11, and a first connecting column 43 is mounted on the moving ring 44. A mounting frame 42 is mounted on one end of the first connecting column 43, a side rod 41 is mounted on the mounting frame 42, and a connecting frame 4 is mounted on the side rod 41. By setting the moving ring 44 to slide in connection with the support column 11, it is easy to guide and limit the connecting frame 4. By setting the side rod 41 and the mounting frame 42, it is easy to support the dust filter box 3.

[0021] The dust filtration assembly includes a dust box 3, an insert block 31, a retaining ball 32, a sealing plate 33, a main extrusion block 34, a bottom rod 35, a first support rod 36, a guide ring 37, a first spring 38, a guide rod 39, a connecting plate 391, a mounting block 392, a second spring 393, and a filter screen 394. The dust box 3 is detachably mounted on the connecting frame 4. A guide rod 39 is mounted on the dust box 3. A connecting plate 391 is mounted on one end of the guide rod 39. A mounting block 392 is mounted on the connecting plate 391. The mounting frame 42 has openings that cooperate with the mounting block 392. The dust filter box 3 has a mounting groove, a guide ring 37 is slidably mounted on the guide rod 39, a first support rod 36 is mounted on the guide ring 37, a closing plate 33 is mounted on one end of the first support rod 36, a bottom rod 35 is mounted on the guide ring 37, a main extrusion block 34 is mounted on one end of the bottom rod 35, the guide ring 37 is connected to the guide rod 39 through a first spring 38, an insert block 31 is mounted at the bottom of the dust filter box 3, the insert block 31 has a cavity, a second spring 393 is mounted inside the cavity, a retaining ball 32 is mounted on one end of the second spring 393, and the bottom of the dust filter box 3 has an opening... The dust collection box 3 has a through hole and a filter screen 394 is installed inside. The filter screen 394 is a V-shaped filter screen. By setting the guide rod 39, the connecting plate 391 can be easily supported. By setting the locking ball 32 to engage with the locking groove, the block plate 6 after installation can be easily limited. By setting the filter screen 394 as V-shaped, dust can be easily accumulated on both sides, so as not to affect the exhaust of the through hole. By setting the bottom rod 35, the main extrusion block 34 can be easily supported. The extrusion assembly includes an auxiliary extrusion block 5, a second connecting column 51 and a top rod 52. A top rod 52 is installed on the support frame 12. An auxiliary extrusion block 5 is installed at one end of the top rod 52. The top rod 52 is installed on the auxiliary extrusion block 5. By setting the top rod 52, the auxiliary extrusion block 5 can be supported. The sealing component includes a blocking plate 6 and an iron block 61. A blocking plate 6 is installed on the bottom plate 1. An iron block 61 that cooperates with the electromagnet 13 is installed at the bottom of the blocking plate 6. A slot that cooperates with the insertion block 31 is opened on the blocking plate 6. A slot that cooperates with the locking ball 32 is opened on the inner wall of the slot. By setting the blocking plate 6, it is easy to seal the through hole. The drive assembly includes a motor 7, an outer frame 71, and a base column 72. The base column 72 is mounted on the base plate 1, and the outer frame 71 is mounted on one end of the base column 72. The motor 7 is mounted on the outer frame 71. By setting the base column 72 and the outer frame 71 to cooperate with each other, the motor 7 can be easily supported. The moving assembly includes a rack 8, a second support rod 81, a gear 82, a support ring 83, a base leg 84, and a rotating rod 85. The base leg 84 is mounted on the base plate 1, and the support ring 83 is mounted on one end of the base leg 84. The rotating rod 85 is rotatably mounted on the support ring 83. One end of the rotating rod 85 is connected to the output end of the motor 7. The gear 82 is mounted on the rotating rod 85. The second support rod 81 is mounted on the connecting frame 4. The rack 8, which meshes with the gear 82, is mounted on one end of the second support rod 81. By setting the second support rod 81, the rack 8 can be easily supported. By setting the support ring 83 and the base leg 84, the rotating rod 85 can be easily supported. By setting the sealing plate 33, when the dust in the dust filter box 3 is full, the motor 7 starts and drives the rotating rod 85 to rotate. When the rotating rod 85 rotates, it drives the gear 82 to rotate. When the gear 82 rotates, it drives the rack 8 to move. When the rack 8 moves, it drives the connecting frame 4 to move. The moving ring 44 slides on the support column 11, which in turn drives the dust filter box 3 to descend. At this time, the main extrusion block 34 moves away from the auxiliary extrusion block 5, the first spring 38 returns to its original position, which in turn drives the guide ring 37 to slide on the guide rod 39, which in turn drives the sealing plate 33 to return to its original position and close the dust filter box 3. As the filter descends, the insert block 31 is inserted into the slot on the blocking plate 6, and the locking ball 32 is engaged in the slot, closing the through hole at the bottom of the dust filter box 3 with the blocking plate 6. At this time, the electromagnet 13 is turned off, and the dust filter box 3 can be sealed when it is moved, which can prevent dust from floating out and causing harm to the workers. Moreover, the dust filter box 3 does not need to be manually sealed by the workers, reducing the workload of the workers. By setting the mounting block 392, the workers can lift the dust filter box 3 and slide the mounting block 392 out of the mounting slot, which can disassemble and move the full dust filter box 3 without the need for manual disassembly by the workers.

[0022] In this embodiment, as Figures 1-11 As shown in the figure, the working process of the ventilation method of the ventilation device for gas control provided in this embodiment is as follows: Step 1: Electromagnet 13 is activated to attract and fix the blocking plate 6. Motor 7 is activated to drive the rotating rod 85 to rotate. When the rotating rod 85 rotates, it drives the gear 82 to rotate. When the gear 82 rotates, it drives the rack 8 to move. When the rack 8 moves, it drives the connecting frame 4 to move. The moving ring 44 slides on the support column 11, thereby driving the dust box 3 to rise. When the auxiliary extrusion block 5 contacts the main extrusion block 34, the dust box 3 continues to rise. The auxiliary extrusion block 5 extrudes the main extrusion block 34, thereby driving the guide ring 37 to slide on the guide rod 39, thereby driving the sealing plate 33 to move and open the dust box 3. At this time, the dust box 3 continues to rise and connects to the bottom of the ventilation box 2. Step 2: The fan 21 starts to draw outside air into the ventilation box 2, which then transports it to the dust filter box 3. After being filtered by the filter screen 394, the air is discharged through the through hole at the bottom of the dust filter box 3, thus circulating the air and providing ventilation. Step 3: When the dust collection box 3 is full, the motor 7 starts and drives the rotating rod 85 to rotate. When the rotating rod 85 rotates, it drives the gear 82 to rotate. When the gear 82 rotates, it drives the rack 8 to move. When the rack 8 moves, it drives the connecting frame 4 to move. The moving ring 44 slides on the support column 11, which in turn drives the dust collection box 3 to descend. At this time, the main extrusion block 34 moves away from the auxiliary extrusion block 5, the first spring 38 returns to its original position, and then drives the guide ring 37 to slide on the guide rod 39, which in turn drives the sealing plate 33 to return to its original position and close the dust collection box 3. The dust collection box 3 continues to descend, inserting the insert block 31 into the slot on the blocking plate 6. The locking ball 32 is inserted into the slot, closing the through hole at the bottom of the dust collection box 3 with the blocking plate 6. At this time, the electromagnet 13 is turned off. The operator lifts the dust collection box 3 and slides the mounting block 392 out of the mounting slot to disassemble and transport the full dust collection box 3.

[0023] In summary, in this embodiment, the ventilation device and method for gas control, by providing the support column 11 and support frame 12, facilitates the support of the ventilation box 2; by providing the fan 21, ventilation is facilitated when the fan 21 is started; by providing the movable ring 44, which is slidably connected to the support column 11, the connecting frame 4 is easily guided and limited; by providing the side rod 41 and mounting frame 42, the dust filter box 3 is easily supported; by providing the guide rod 39, the connecting plate 391 is easily supported; and by providing the locking ball 32, it is connected to the locking groove. The system facilitates the limiting of the installed blocking plate 6. By designing the filter screen 394 in a V-shape, dust can be easily accumulated on both sides without affecting the venting of the through-hole. The base rod 35 provides support for the main extrusion block 34, and the top rod 52 provides support for the auxiliary extrusion block 5. The blocking plate 6 facilitates the sealing of the through-hole. The base column 72 and the outer frame 71 work together to support the motor 7. The second support rod 81 provides support for the rack 8. The support ring 83 and the base leg 84 facilitate the... The rotating rod 85 provides support. With the sealing plate 33 in place, when the dust collection box 3 is full, the motor 7 starts, driving the rotating rod 85 to rotate. The rotation of the rotating rod 85 drives the gear 82 to rotate, which in turn drives the rack 8 to move. The rack 8's movement drives the connecting frame 4 to move, and the moving ring 44 slides on the support column 11, causing the dust collection box 3 to descend. At this point, the main extrusion block 34 moves away from the auxiliary extrusion block 5, the first spring 38 resets, and the guide ring 37 slides on the guide rod 39, which in turn resets the sealing plate 33, closing the dust collection box 3. As the dustbin 3 descends, the insert block 31 is inserted into the slot on the blocking plate 6, and the locking ball 32 is engaged in the slot, closing the through hole at the bottom of the dustbin 3 with the blocking plate 6. At this time, the electromagnet 13 is turned off, and the dustbin 3 can be sealed when it is being moved, preventing dust from flying out and causing harm to the workers. Moreover, the dustbin 3 does not need to be manually sealed by the workers, reducing their workload. By setting the mounting block 392, the workers can lift the dustbin 3 and slide the mounting block 392 out of the mounting slot, allowing the full dustbin 3 to be disassembled and moved without the need for manual disassembly.

[0024] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A ventilation device for gas control, characterized in that include Support components are used to support the ventilation components; Ventilation components, used for ventilation operations; Dust filter assembly, used to filter dust in the air; The lifting assembly is used to lift and support the dust filter assembly; The squeezing assembly is used to squeeze the dust filter assembly to open it, so that the dust filter assembly can work in conjunction with the ventilation assembly to perform ventilation. A sealing component is used to seal the bottom of the dust filter assembly; Driver components are used to drive moving components; The moving component, driven by the extrusion component, opens the dust filter component.

2. A ventilation device for gas control according to claim 1, characterized in that The support assembly includes a base plate (1), a support column (11), a support frame (12), and an electromagnet (13). A support column (11) is installed on the base plate (1), a support frame (12) is installed at one end of the support column (11), and an electromagnet (13) is installed on the base plate (1).

3. A ventilation device for gas control according to claim 2, characterized in that, The ventilation assembly includes a ventilation box (2) and a fan (21); A ventilation box (2) is installed on the support frame (12), and a fan (21) is installed on the ventilation box (2).

4. A ventilation device for gas control according to claim 3, characterized in that, The lifting assembly includes a connecting frame (4), a side bar (41), a mounting frame (42), a first connecting post (43), and a moving ring (44). A movable ring (44) is slidably installed on the support column (11), a first connecting column (43) is installed on the movable ring (44), an installation frame (42) is installed at one end of the first connecting column (43), a side rod (41) is installed on the installation frame (42), and the connecting frame (4) is installed on the side rod (41).

5. A ventilation device for gas control according to claim 4, characterized in that, The dust filtration assembly includes a dust filtration box (3), an insert block (31), a retaining ball (32), a sealing plate (33), a main extrusion block (34), a bottom rod (35), a first support rod (36), a guide ring (37), a first spring (38), a guide rod (39), a connecting plate (391), a mounting block (392), a second spring (393), and a filter screen (394). A dust filter box (3) is detachably installed on the connecting frame (4). A guide rod (39) is installed on the dust filter box (3). A connecting plate (391) is installed on one end of the guide rod (39). An mounting block (392) is installed on the connecting plate (391). An mounting groove that cooperates with the mounting block (392) is provided on the mounting frame (42). A guide ring (37) is slidably installed on the guide rod (39). A first support rod (36) is installed on the guide ring (37). A closing plate (33) is installed on one end of the first support rod (36). 7) A bottom rod (35) is installed on the top. A main extrusion block (34) is installed at one end of the bottom rod (35). The guide ring (37) is connected to the guide rod (39) through a first spring (38). An insert block (31) is installed at the bottom of the dust filter box (3). A cavity is opened on the insert block (31). A second spring (393) is installed inside the cavity. A retaining ball (32) is installed at one end of the second spring (393). A through hole is opened at the bottom of the dust filter box (3). A filter screen (394) is installed inside the dust filter box (3). The filter screen (394) is a V-shaped filter screen.

6. A ventilation device for gas control according to claim 5, characterized in that, The extrusion assembly includes an auxiliary extrusion block (5), a second connecting column (51), and a top rod (52). A top rod (52) is installed on the support frame (12), and an auxiliary extrusion block (5) is installed on one end of the top rod (52). The top rod (52) is installed on the auxiliary extrusion block (5).

7. A ventilation device for gas control according to claim 6, characterized in that, The enclosure assembly includes a blocking plate (6) and an iron block (61). A blocking plate (6) is installed on the base plate (1). An iron block (61) that cooperates with the electromagnet (13) is installed at the bottom of the blocking plate (6). A slot that cooperates with the insert block (31) is opened on the blocking plate (6). A slot that cooperates with the ball (32) is opened on the inner wall of the slot.

8. A ventilation device for gas control according to claim 7, characterized in that, The drive assembly includes a motor (7), an outer frame (71), and a base column (72). A base column (72) is installed on the base plate (1), and an outer frame (71) is installed at one end of the base column (72). A motor (7) is installed on the outer frame (71).

9. A ventilation device for gas control according to claim 8, characterized in that, The moving component includes a rack (8), a second support rod (81), a gear (82), a support ring (83), a bottom leg (84), and a rotating rod (85). A base leg (84) is installed on the base plate (1). A support ring (83) is installed at one end of the base leg (84). A rotating rod (85) is rotatably installed on the support ring (83). One end of the rotating rod (85) is connected to the output end of the motor (7). A gear (82) is installed on the rotating rod (85). A second support rod (81) is installed on the connecting frame (4). A rack (8) that meshes with the gear (82) is installed at one end of the second support rod (81).

10. A ventilation method for a ventilation device for gas control according to claims 1-9, characterized in that, Includes the following steps: Step 1: The electromagnet (13) is activated to attract and fix the blocking plate (6). The motor (7) is activated to drive the rotating rod (85) to rotate. When the rotating rod (85) rotates, it drives the gear (82) to rotate. When the gear (82) rotates, it drives the rack (8) to move. When the rack (8) moves, it drives the connecting frame (4) to move. The moving ring (44) slides on the support column (11), which in turn drives the dust box (3) to rise. When the auxiliary extrusion block (5) contacts the main extrusion block (34), the dust box (3) continues to rise. The auxiliary extrusion block (5) extrudes the main extrusion block (34), which in turn drives the guide ring (37) to slide on the guide rod (39), which in turn drives the closing plate (33) to move and open the dust box (3). At this time, the dust box (3) continues to rise and connects to the bottom of the ventilation box (2). Step 2: The fan (21) starts to draw outside air into the ventilation box (2), and then transports it to the dust filter box (3) through the ventilation box (2). After being filtered by the filter screen (394), the air is discharged through the through hole at the bottom of the dust filter box (3), so that the air circulates and is ventilated. Step 3: When the dust collection box (3) is full, the motor (7) starts and drives the rotating rod (85) to rotate. When the rotating rod (85) rotates, it drives the gear (82) to rotate. When the gear (82) rotates, it drives the rack (8) to move. When the rack (8) moves, it drives the connecting frame (4) to move. The moving ring (44) slides on the support column (11), which in turn drives the dust collection box (3) to descend. At this time, the main extrusion block (34) moves away from the auxiliary extrusion block (5), the first spring (38) resets, and then drives the main extrusion block (3) to descend. The guide ring (37) slides on the guide rod (39), thereby driving the sealing plate (33) to reset and close the dust box (3). The dust box (3) continues to descend, inserting the insert block (31) into the slot on the blocking plate (6), and the locking ball (32) is inserted into the slot, closing the through hole at the bottom of the dust box (3) with the blocking plate (6). At this time, the electromagnet (13) is turned off, and the staff lifts the dust box (3), slides the mounting block (392) out of the mounting slot, and disassembles and transports the full dust box (3).

Images