A high efficiency ventilation device for a home elevator

Abstract

The application discloses a kind of high-efficiency ventilation devices for household elevator, belong to elevator ventilation technical field, including main module and quick replacement module, the main module includes two air cylinders, the top of one of the air cylinder is provided with a plurality of air holes, the bottom of another air cylinder is provided with a plurality of air holes, the inside of one air cylinder is provided with a fan, the outer surface between two air cylinders is fixedly connected with hollow disc, the hollow disc is fixedly installed at the air slot opened at the top of elevator by bolt, by the setting of center rotating column, cross plate, mounting assembly, filter screen, movable steering assembly, sealing assembly and driving assembly, the device can realize the quick switching of filter screen, without waiting for a long time when the device is stopped, avoid seriously affecting the use of device, at the same time, switching operation is convenient and fast, solve the problem of complicated operation, convenient for user to operate.

Description

Technical Field

[0001] This invention relates to the field of elevator ventilation technology, and more specifically, to a high-efficiency ventilation device for home elevators. Background Technology

[0002] An elevator is a permanent transportation device that serves several specific floors within a building. Its car moves on at least two rigid rails that are perpendicular to the horizontal plane or have an inclination angle of less than 15° from the vertical. A vertical elevator has a car that runs between at least two rigid guide rails that are vertical or have an inclination angle of less than 15°. An elevator car is equipped with an elevator ventilation system to make the air inside the elevator more comfortable.

[0003] In current elevator ventilation systems, filters are typically installed inside the system to purify the air. However, because the filters are inside the system, disassembling, replacing, and cleaning them takes a lot of time, causing the machine to be shut down for extended periods. When the ventilation system needs to be used continuously, replacing the filters can disrupt its normal operation, and the process is too cumbersome. Summary of the Invention

[0004] To address the above problems, this invention provides a high-efficiency ventilation device for home elevators, employing the following technical solution:

[0005] A high-efficiency ventilation device for home elevators includes a main module and a quick-replacement module. The main module includes two ventilation cylinders, one of which has multiple ventilation holes at its top, and the other has multiple ventilation holes at its bottom. A fan is installed inside one of the ventilation cylinders. A hollow disc is fixedly connected between the outer surfaces of the two ventilation cylinders. The hollow disc is bolted to a slot in the top of the elevator interior. A hinged door is attached to the outer surface of the hollow disc. The quick-replacement module includes a central rotating column rotatably connected between the top and bottom of the hollow disc. A cross plate is fixedly connected to the outer surface of the disc. Four mounting components are arranged in a ring at equal intervals on the outer surface of the cross plate. Each of the four mounting components has a filter screen inside. A limit component is provided between the bottom of the inner wall of the hollow disc and the four mounting components. A movable steering component is provided at the bottom of the central rotating column. A sealing component is provided between the outer surfaces of the two vents and the interior of the hollow disc. The sealing component is connected to one of the mounting components. One of the filter screens is located between the two vents. A drive component is provided at the bottom of the hollow disc. The drive component is connected to the sealing component and is adapted to the movable steering component.

[0006] Furthermore, the movable steering assembly includes a 90-degree grooved wheel fixedly connected to the bottom end of the central rotating column, a rotating shaft rotatably connected to the bottom of the hollow disc, a drive wheel fixedly connected to the bottom end of the rotating shaft, the outer surface of the drive wheel movably connected to the outer surface of the 90-degree grooved wheel, a limiting ratchet fixedly connected to the outer surface of the rotating shaft, a limiting ratchet movably connected to the bottom of the hollow disc, and one end of the limiting ratchet movably connected to the outer surface of the limiting ratchet.

[0007] Furthermore, the movable steering assembly also includes a hollow gear rotatably connected to the bottom of the drive wheel disk. An inner wheel located inside the hollow gear is fixedly connected to the bottom of the drive wheel disk. Multiple boosting ratchet teeth are movably connected to the bottom of the inner wheel. A limiting ratchet groove is formed on the inner wall of the hollow gear. One end of each of the multiple boosting ratchet teeth is movably connected to the inside of the limiting ratchet groove. Multiple elastic plates are fixedly connected to the bottom of the inner wheel. The outer surfaces of the multiple elastic plates respectively contact the outer surfaces of the multiple boosting ratchet teeth.

[0008] Furthermore, the sealing assembly includes two sealing cylinders that are movably inserted into the bottom and top of the two vent cylinders, respectively. The outer surfaces of the two vent cylinders are provided with connecting grooves, and the outer surfaces of the two vent cylinders are fixedly connected with fixing blocks. A bidirectional screw is rotatably connected between the outer surfaces of the two fixing blocks. The bidirectional screw passes through the hollow disc, and the outer surface of the bidirectional screw is threaded with two connecting pieces. The two connecting pieces are fixedly connected to the two sealing cylinders through the two connecting grooves, respectively.

[0009] Furthermore, the sealing assembly also includes a first connecting shaft rotatably connected to the bottom of the hollow disc. A connecting gear is fixedly connected to the outer surface of the first connecting shaft. A transmission roller is fixedly connected to the bottom end of the first connecting shaft and the lower part of the outer surface of the bidirectional screw. A transmission belt is drivingly connected between the outer surfaces of the two transmission rollers.

[0010] Furthermore, the drive assembly includes two second connecting shafts rotatably connected to the bottom of the hollow disk. One of the second connecting shafts has a first sector gear and a drive gear fixedly connected to its outer surface. The first sector gear meshes with the connecting gear and is adapted to the hollow gear. The other second connecting shaft has a second sector gear and a hollow bar fixedly connected to its outer surface. The outer surface of the second sector gear meshes with the drive gear.

[0011] Furthermore, the drive assembly also includes a drive motor fixedly connected to the bottom of the inner wall of the hollow disc. The output shaft of the drive motor extends to the bottom of the hollow disc and is fixedly connected to a drive disk. A drive shaft is fixedly connected to the bottom of the drive disk, and the drive shaft is movably connected inside the hollow strip.

[0012] Furthermore, the mounting assembly includes a slot formed on the outer surface of the cross plate, a square metal rod is movably inserted into the slot, a magnetic block is fixedly connected to one end of the square metal rod, and a mounting plate is fixedly connected to the other end of the square metal rod. The top and bottom of the mounting plate are provided with annular sealing grooves, one of the filter screens is fixedly connected inside the mounting plate, and the adjacent ends of the two sealing cylinders are movably inserted into the two annular sealing grooves respectively.

[0013] Furthermore, the limiting component includes four L-shaped rods, the top of which is fixedly connected to the bottom of the mounting plate. An annular piece is fixedly connected to the bottom of the inner wall of the hollow disc. A notch is provided on the annular piece, which is located on one side of the disassembly door. A ball bearing is movably connected to the bottom of each of the four L-shaped rods. Three of the ball bearings are cut off from the inner wall of the annular piece, and the other ball bearing is close to the notch.

[0014] Furthermore, the main module also includes a control panel that is installed on the outer wall of the hollow disc and is touchable. The control panel is electrically connected to the fan and the drive motor. A support plate is fixedly connected to the bottom of the hollow disc. An opening is provided on the outer wall of the support plate, and a matching opening door is provided at the opening.

[0015] In summary, the present invention has the following beneficial technical effects:

[0016] (1) The present invention enables the device to quickly switch the filter screen by setting up a central rotating column, cross plate, mounting components, filter screen, movable steering components, sealing components and driving components, without the need for the device to stop and wait for a long time, thus avoiding serious impact on the use of the device. At the same time, the switching operation is convenient and quick, solving the problem of cumbersome operation and making it easy for users to operate.

[0017] (2) The present invention, through the setting of limiting components, installation components and disassembly doors, enables the limiting components to restrict the position of the installation components, thereby improving the stability of the installation components. At the same time, the installation components allow the filter screen to be easily disassembled, thereby facilitating the operation of the staff and improving the ease of operation.

[0018] (3) By setting the limiting ratchet and the limiting ratchet, the present invention enables the device to limit the rotation direction of the drive wheel, avoid the drive wheel from being rotated in the opposite direction by the transmission, thereby improving the stability of the device during use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the 90-degree grooved wheel structure from below in this invention;

[0022] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B;

[0024] Figure 6 This is an exploded structural diagram of the driving component of the present invention;

[0025] Figure 7 This is a cross-sectional schematic diagram of the mounting components of the present invention;

[0026] Figure 8 This is a schematic diagram showing the positions of the limiting ratchet and the limiting ratchet teeth of the present invention.

[0027] Explanation of the labels in the diagram:

[0028] 100. Main module; 110. Ventilation cylinder; 120. Ventilation hole; 140. Fan; 150. Hollow disc; 160. Support plate; 170. Disassembly door;

[0029] 200. Quick Replacement Module; 210. Central Rotary Column; 220. Cross Plate; 230. Mounting Assembly; 231. Magnetic Block; 232. Square Metal Insert; 233. Mounting Plate; 234. Annular Sealing Groove; 240. Filter Screen; 250. Limiting Assembly; 251. Annular Plate; 252. L-Shaped Rod; 253. Ball Bearing; 260. Movable Steering Assembly; 261. Ninety-Degree Grooved Wheel; 262. Drive Wheel; 263. Hollow Gear; 264. Inner Wheel; 265. Elastic Plate; 266. Assist Ratchet; 267. Limiting ratchet; 268. Limiting ratchet wheel; 270. Sealing assembly; 271. Sealing cylinder; 272. Connecting piece; 273. Fixing block; 274. Bidirectional screw; 275. First connecting shaft; 276. Connecting gear; 277. Transmission roller; 278. Transmission belt; 280. Drive assembly; 281. Second connecting shaft; 282. First sector gear; 283. Drive gear; 284. Second sector gear; 285. Hollow bar; 286. Drive motor; 287. Drive disc; 288. Drive shaft. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] The following is in conjunction with the appendix Figure 1-8 The present invention will be described in further detail below.

[0034] Please see Figure 1-8A high-efficiency ventilation device for home elevators includes a main module 100 comprising two ventilation cylinders 110. One ventilation cylinder 110 has multiple ventilation holes 120 at its top, and the other ventilation cylinder 110 has multiple ventilation holes 120 at its bottom. A fan 140 is installed inside one of the ventilation cylinders 110. A hollow disc 150 is fixedly connected between the outer surfaces of the two ventilation cylinders 110. The hollow disc 150 is bolted to a slot at the top of the elevator interior. A disassembly door 170 is hinged to the outer surface of the hollow disc 150. A quick-replacement module 200 includes a central rotating column 210 rotatably connected between the top and bottom of the hollow disc 150. A cross plate 22 is fixedly connected to the outer surface of the central rotating column 210. 0. Four mounting components 230 are arranged in a ring at equal intervals on the outer surface of the cross plate 220. Each of the four mounting components 230 has a filter screen 240 inside. A limit component 250 is provided between the bottom of the inner wall of the hollow disc 150 and the four mounting components 230. A movable steering component 260 is provided at the bottom of the central rotating column 210. A sealing component 270 is provided between the outer surface of the two vents 110 and the interior of the hollow disc 150. The sealing component 270 is connected to one of the mounting components 230. One of the filter screens 240 is located between the two vents 110. A drive component 280 is provided at the bottom of the hollow disc 150. The drive component 280 is connected to the sealing component 270 and is adapted to the movable steering component 260.

[0035] During operation, when the fan 140 is turned on, it draws air in through the vent 120 on the vent 110 and filters it through one of the filters 240. The filtered air then enters the elevator, completing the filtration process. When the filter 240 needs replacement after prolonged use, the drive assembly 280 is turned on. The drive assembly 280 first drives the sealing assembly 270, disengaging it from one of the mounting components 230. Subsequently, the drive assembly 280 disengages from the sealing assembly 270 and drives the movable steering assembly 260, which then idles. The drive assembly 280 then resumes operation. When the machine is in position, the movable steering component 260 will be driven first. The movable steering component 260 will drive the central rotating column 210 to rotate 90 degrees. The central rotating column 210 will drive the cross plate 220 and the four mounting components 230 to rotate 90 degrees, so that another mounting component 230 and the filter screen 240 will be moved between the two vents 110. When the drive component 280 resets the transmission sealing component 270, the sealing component 270 will be sealed and connected with the other mounting component 230, so as to complete the quick switching of the filter screen 240. This eliminates the need for the machine to stop for a long time. At the same time, the overall switching procedure is convenient and quick, making it easy for operators to operate and improving the convenience of machine use.

[0036] The movable steering assembly 260 includes a 90-degree grooved wheel 261 fixedly connected to the bottom of the central rotating column 210. A rotating shaft is rotatably connected to the bottom of the hollow disc 150, and a drive wheel 262 is fixedly connected to the bottom of the rotating shaft. The outer surface of the drive wheel 262 is movably connected to the outer surface of the 90-degree grooved wheel 261. A limiting ratchet 267 is fixedly connected to the outer surface of the rotating shaft. A limiting ratchet 268 is movably connected to the bottom of the hollow disc 150, and one end of the limiting ratchet 268 is movably connected to the outer surface of the limiting ratchet 267. The movable steering assembly 260 also includes a hollow gear 263 rotatably connected to the bottom of the drive wheel 262. An inner wheel 264 located inside the hollow gear 263 is fixedly connected to the bottom of the drive wheel 262. Multiple pusher ratchet teeth 266 are movably connected to the bottom of the inner wheel 264. A limiting ratchet groove is formed on the inner wall of the hollow gear 263. One end of each pusher ratchet tooth 266 is movably connected inside the limiting ratchet groove. Multiple elastic plates 265 are fixedly connected to the bottom of the inner wheel 264. The outer surfaces of the elastic plates 265 contact the outer surfaces of the pusher ratchet teeth 266 respectively. The sealing assembly 270 includes two sealing cylinders 271 that are movably inserted into the bottom and top of the two vent cylinders 110 respectively. Connecting grooves are formed on the outer surfaces of both vent cylinders 110. Fixing blocks 273 are fixedly connected to the outer surfaces of both vent cylinders 110. A bidirectional screw 274 is rotatably connected between the outer surfaces of the two fixing blocks 273. The bidirectional screw 274 passes through the inner wheel 264. The hollow disc 150 has two connecting pieces 272 threadedly connected to the outer surface of the bidirectional screw 274. The two connecting pieces 272 are fixedly connected to two sealing cylinders 271 via two connecting grooves. The sealing assembly 270 also includes a first connecting shaft 275 rotatably connected to the bottom of the hollow disc 150. A connecting gear 276 is fixedly connected to the outer surface of the first connecting shaft 275. A transmission roller 277 is fixedly connected to the bottom end of the first connecting shaft 275 and the lower part of the outer surface of the bidirectional screw 274. A transmission belt 278 drives between the outer surfaces of the two transmission rollers 277. The drive assembly 280 includes two second connecting shafts 281 rotatably connected to the bottom of the hollow disc 150. The outer surface of one of the second connecting shafts 281 is fixedly connected to... The drive assembly 280 is connected to a first sector gear 282 and a drive gear 283. The first sector gear 282 meshes with a connecting gear 276 and is adapted to a hollow gear 263. The outer surface of another second connecting shaft 281 is fixedly connected to a second sector gear 284 and a hollow bar 285. The outer surface of the second sector gear 284 meshes with the drive gear 283. The drive assembly 280 also includes a drive motor 286 fixedly connected to the bottom of the inner wall of the hollow disk 150. The output shaft of the drive motor 286 extends to the bottom of the hollow disk 150 and is fixedly connected to a drive disk 287. The bottom of the drive disk 287 is fixedly connected to a drive shaft 288, which is movably connected inside the hollow bar 285.

[0037] When the filter screen 240 needs to be replaced after long-term use, the drive motor 286 is turned on. The drive motor 286 will drive the drive disc 287 and drive shaft 288 to rotate. The drive shaft 288 will move inside the hollow bar 285 and push the second sector gear 284 through the hollow bar 285. The second sector gear 284 will drive the second connecting shaft 281 and the first sector gear 282 to swing through the drive gear 283. The first sector gear 282 will drive the connecting gear 276. The connecting gear 276 will drive the bidirectional screw 274 to rotate through the linkage of the transmission belt 278. The bidirectional screw 274 will drive the two connecting plates 272 to drive the two sealing cylinders 271 to move away from each other and withdraw from the two annular sealing grooves 234. Subsequently, the first sector gear 282 will disengage from the connecting gear 276 and drive the hollow gear 263. Since the rotation direction of the drive disc 262 is restricted by the limiting ratchet 267 and the limiting ratchet 268, the hollow gear 263 will idle at the bottom of the drive disc 262. During idling, the limiting ratchet will push the assist ratchet 266 to move, and the elastic plate 265 will keep the assist ratchet 266 tightly against the limiting ratchet. Subsequently, the first sector gear 282 will be reset, thereby pushing the assist ratchet 266 through the hollow gear 263 and the limiting ratchet. The assist ratchet 266 will drive the inner wheel 264 and the drive wheel 262 to rotate. The drive wheel 262 will drive the 90-degree grooved wheel 261 to rotate 90 degrees, so that the central rotating column 210 drives the cross plate 220 and the four mounting components 230 to rotate 90 degrees, thereby displacing another mounting component 230 and the filter screen 240 between the two vents 110. Subsequently, the first sector gear 282 reverses the transmission to the connecting gear 276, so that the two sealing cylinders 271 move closer to each other and re-insert into the two annular sealing grooves 234 to complete the sealing connection, thereby completing the rapid switching of the filter screen 240, so as not to stop the machine for a long time, and the overall switching steps are convenient and quick.

[0038] Mounting assembly 230 includes a slot formed on the outer surface of cross plate 220. A square metal rod 232 is movably inserted into the slot. A magnetic block 231, magnetically connected to one end of the square metal rod 232, is fixedly connected inside the slot. A mounting plate 233 is fixedly connected to the other end of the square metal rod 232. Annular sealing grooves 234 are formed on both the top and bottom of the mounting plate 233. One filter screen 240 is fixedly connected inside the mounting plate 233. The adjacent ends of the two sealing cylinders 271 are movable. Inserted into the interior of two annular sealing grooves 234, the limiting assembly 250 includes four L-shaped rods 252. The top of the L-shaped rods 252 is fixedly connected to the bottom of the mounting plate 233. An annular piece 251 is fixedly connected to the bottom of the inner wall of the hollow disc 150. A notch is provided on the annular piece 251, which is located on one side of the disassembly door 170. The bottom ends of the four L-shaped rods 252 are movably connected to ball bearings 253. Three of the ball bearings 253 are cut off from the inner wall of the annular piece 251, and the other ball bearing 253 is close to the notch.

[0039] When the mounting plate 233 moves, the ball bearing 253 will roll on the inner wall of the annular plate 251, thereby restricting the position of the ball bearing 253. The operator can open the disassembly door 170 of the mounting plate 233 located at the notch, and then pull the mounting plate 233 outward. The mounting plate 233 will drive the square metal rod 232 to separate from the magnetic block 231, and remove it through the disassembly door 170 to complete the disassembly. Afterward, the new mounting component 230 or the cleaned mounting component 230 can be installed in reverse, making the filter screen 240 easy and quick to disassemble, improving the convenience of machine use.

[0040] The main module 100 also includes a control panel that is installed on the outer wall of the hollow disc 150 and is touchable. The control panel is electrically connected to the fan 140 and the drive motor 286. A support plate 160 is fixedly connected to the bottom of the hollow disc 150. An opening is provided on the outer wall of the support plate 160, and a matching opening door is provided at the opening.

[0041] The implementation principle of this invention is as follows: Air enters through the vent 120 on the vent cylinder 110 and is filtered by one of the filters 240. After filtration, the air enters the elevator, thus completing the filtration process. When the filter 240 needs to be replaced after prolonged use, the drive motor 286 is turned on via the control panel. The drive motor 286 will drive the drive disc 287 and drive shaft 288 to rotate. The drive shaft 288 will move inside the hollow bar 285 and push the second sector gear 284 through the hollow bar 285. The second sector gear 284 pushes the second connecting shaft 281 and the first sector gear 282 to swing through the drive gear 283. The first sector gear 282 will then drive the connecting gear. The connecting gear 276 will drive the bidirectional screw 274 to rotate via the transmission belt 278. The bidirectional screw 274 drives the two connecting plates 272, causing the two sealing cylinders 271 to move away from each other and retract from the two annular sealing grooves 234. Subsequently, the first sector gear 282 disengages from the connecting gear 276 and drives the hollow gear 263. Because the rotation direction of the drive wheel 262 is restricted by the limiting ratchet 267 and the limiting ratchet wheel 268, the hollow gear 263 will idle at the bottom of the drive wheel 262. During the idle rotation, the limiting ratchet groove will push the assisting ratchet 266 to move, and the elastic plate 265 will keep the assisting ratchet 266 tightly against the limiting ratchet groove. Subsequently, the first sector gear 282 will reset, thus... The hollow gear 263 and the limiting ratchet groove drive the booster ratchet 266, which in turn drives the inner wheel 264 and the drive wheel 262 to rotate. The drive wheel 262 then drives the 90-degree grooved wheel 261 to rotate 90 degrees, causing the central rotating column 210 to drive the cross plate 220 and the four mounting components 230 to rotate 90 degrees. This allows another mounting component 230 and the filter screen 240 to be displaced between the two vents 110. Subsequently, the first sector gear 282 drives the gear 276 in the reverse direction, causing the two sealing cylinders 271 to move closer to each other and re-insert into the two annular sealing grooves 234 to complete the sealing connection. This enables the rapid switching of the filter screen 240, thus eliminating the need for frequent machine downtime. Meanwhile, the overall switching steps are convenient and quick, making it easy for staff to operate and improving the convenience of machine use. When the mounting plate 233 moves, the ball bearing 253 will roll on the inner wall of the annular plate 251, thereby restricting the position of the ball bearing 253. The staff can open the disassembly door 170 of the mounting plate 233 located at the notch, and then pull the mounting plate 233 outward. The mounting plate 233 will drive the square metal rod 232 to separate from the magnetic block 231, and remove it through the disassembly door 170 to complete the disassembly. Afterward, the new mounting component 230 or the cleaned mounting component 230 can be installed in reverse, making the filter screen 240 easy and quick to disassemble, improving the convenience of machine use.

[0042] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency ventilation device for home elevators, comprising a main module (100) and a quick-replacement module (200), characterized in that: The main module (100) includes two ventilation cylinders (110). One of the ventilation cylinders (110) has multiple ventilation holes (120) at its top, and the other ventilation cylinder (110) has multiple ventilation holes (120) at its bottom. One of the ventilation cylinders (110) is equipped with a fan (140). A hollow disc (150) is fixedly connected between the outer surfaces of the two ventilation cylinders (110). The hollow disc (150) is fixedly installed in a slot at the top of the elevator by bolts. A disassembly door (170) is hinged to the outer surface of the hollow disc (150). The rapid replacement module (200) includes a central rotating column (210) rotatably connected between the top and bottom of a hollow disc (150). A cross plate (220) is fixedly connected to the outer surface of the central rotating column (210). Four mounting components (230) are arranged in a ring at equal intervals on the outer surface of the cross plate (220). A filter screen (240) is provided inside each of the four mounting components (230). A limit component (250) is provided between the bottom of the inner wall of the hollow disc (150) and the four mounting components (230). A movable steering assembly (260) is provided at the bottom of (210), a sealing assembly (270) is provided between the outer surfaces of the two vents (110) and the interior of the hollow disc (150), the sealing assembly (270) is connected to one of the mounting assemblies (230), one of the filters (240) is located between the two vents (110), and a driving assembly (280) is provided at the bottom of the hollow disc (150), the driving assembly (280) is connected to the sealing assembly (270) and is adapted to the movable steering assembly (260); The movable steering assembly (260) includes a 90-degree grooved wheel (261) fixedly connected to the bottom end of the central rotating column (210), a rotating shaft rotatably connected to the bottom of the hollow disc (150), a drive wheel (262) fixedly connected to the bottom end of the rotating shaft, the outer surface of the drive wheel (262) being movably connected to the outer surface of the 90-degree grooved wheel (261), a limiting ratchet (267) fixedly connected to the outer surface of the rotating shaft, a limiting ratchet (268) movably connected to the bottom of the hollow disc (150), and one end of the limiting ratchet (268) being movably connected to the outer surface of the limiting ratchet (267); The movable steering assembly (260) also includes a hollow gear (263) rotatably connected to the bottom of the drive wheel (262). The bottom of the drive wheel (262) is fixedly connected to an inner wheel (264) located inside the hollow gear (263). The bottom of the inner wheel (264) is movably connected to a plurality of boosting ratchet teeth (266). The inner wall of the hollow gear (263) is provided with a limiting ratchet groove. One end of each of the plurality of boosting ratchet teeth (266) is movably connected to the inside of the limiting ratchet groove. The bottom of the inner wheel (264) is fixedly connected to a plurality of elastic plates (265). The outer surfaces of the plurality of elastic plates (265) respectively contact the outer surfaces of the plurality of boosting ratchet teeth (266). The mounting assembly (230) includes a slot formed on the outer surface of the cross plate (220), a square metal rod (232) is movably inserted into the slot, a magnetic block (231) is fixedly connected to one end of the square metal rod (232) and a mounting plate (233) is fixedly connected to the other end of the square metal rod (232). The limiting component (250) includes four L-shaped rods (252), the top of the L-shaped rods (252) is fixedly connected to the bottom of the mounting plate (233), and an annular piece (251) is fixedly connected to the bottom of the inner wall of the hollow disc (150). The annular piece (251) has a notch located on one side of the disassembly door (170). The bottom ends of the four L-shaped rods (252) are movably connected to ball bearings (253), three of which are in contact with the inner wall of the annular piece (251), and the other ball bearing (253) is close to the notch.

2. The high-efficiency ventilation device for a home elevator according to claim 1, characterized in that: The sealing assembly (270) includes two sealing cylinders (271) that are respectively movably inserted into the bottom and top of the two vent cylinders (110). The outer surfaces of the two vent cylinders (110) are provided with connecting grooves. The outer surfaces of the two vent cylinders (110) are fixedly connected with fixing blocks (273). The outer surfaces of the two fixing blocks (273) are rotatably connected with a bidirectional screw (274). The bidirectional screw (274) passes through the hollow disc (150). The outer surface of the bidirectional screw (274) is threaded with two connecting pieces (272). The two connecting pieces (272) are fixedly connected to the two sealing cylinders (271) through two connecting grooves respectively.

3. The high-efficiency ventilation device for a home elevator according to claim 2, characterized in that: The sealing assembly (270) further includes a first connecting shaft (275) rotatably connected to the bottom of the hollow disc (150). A connecting gear (276) is fixedly connected to the outer surface of the first connecting shaft (275). A transmission roller (277) is fixedly connected to the bottom end of the first connecting shaft (275) and the lower part of the outer surface of the bidirectional screw (274). A transmission belt (278) is connected between the outer surfaces of the two transmission rollers (277).

4. The high-efficiency ventilation device for a home elevator according to claim 3, characterized in that: The drive assembly (280) includes two second connecting shafts (281) rotatably connected to the bottom of the hollow disk (150). One of the second connecting shafts (281) has a first sector gear (282) and a drive gear (283) fixedly connected to its outer surface. The first sector gear (282) meshes with the connecting gear (276) and is adapted to the hollow gear (263). The other second connecting shaft (281) has a second sector gear (284) and a hollow bar (285) fixedly connected to its outer surface. The outer surface of the second sector gear (284) meshes with the drive gear (283).

5. A high-efficiency ventilation device for a home elevator according to claim 4, characterized in that: The drive assembly (280) further includes a drive motor (286) fixedly connected to the bottom of the inner wall of the hollow disk (150). The output shaft of the drive motor (286) extends to the bottom of the hollow disk (150) and is fixedly connected to a drive disk (287). The bottom of the drive disk (287) is fixedly connected to a drive shaft (288), which is movably connected inside the hollow strip (285).

6. A high-efficiency ventilation device for a home elevator according to claim 5, characterized in that: The mounting plate (233) has annular sealing grooves (234) at both the top and bottom. One of the filter screens (240) is fixedly connected inside the mounting plate (233), and the two sealing cylinders (271) are movably inserted into the two annular sealing grooves (234) at their adjacent ends.

7. A high-efficiency ventilation device for a home elevator according to claim 6, characterized in that: The main module (100) also includes a control panel that is touched by hand and installed on the outer wall of the hollow disc (150). The control panel is electrically connected to the fan (140) and the drive motor (286). A support plate (160) is fixedly connected to the bottom of the hollow disc (150). An opening is provided on the outer wall of the support plate (160), and a matching opening door is provided at the opening.

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