Efficient ventilation device for household elevator

Abstract

The invention discloses an efficient ventilation device for a home elevator, and belongs to the technical field of elevator ventilation, the efficient ventilation device comprises a main body module and a rapid replacement module, the main body module comprises two ventilation cylinders, a plurality of ventilation holes are formed in the top of one ventilation cylinder, and a plurality of ventilation holes are formed in the bottom of the other ventilation cylinder; a draught fan is arranged in one ventilation cylinder, a hollow disc is fixedly connected between the outer surfaces of the two ventilation cylinders, and the hollow disc is fixedly installed at the position of a through groove formed in the top in the elevator through bolts. Through the arrangement of the center rotating column, the cross plate, the mounting assembly, the filter screens, the movable steering assembly, the sealing assembly and the driving assembly, the device can achieve rapid switching of the filter screens, the device does not need to stop and wait for a long time, the situation that use of the device is seriously affected is avoided, meanwhile, switching operation is convenient and rapid, the problem of tedious operation is solved, and the working efficiency is improved. And the user can operate conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator ventilation, and more specifically, to an efficient ventilation device for a household elevator. Background Art

[0002] An elevator refers to a permanent transportation device that serves several specific floors in a building, and its car moves on at least two rigid tracks perpendicular to the horizontal plane or with an inclination angle less than 15° with respect to the plumb line. A vertical lift elevator has a car that moves between at least two vertical or inclined rigid guide rails with an inclination angle less than 15°. An elevator ventilation device is installed inside the elevator car to make the air inside the elevator more comfortable.

[0003] Currently, in the process of using the elevator ventilation device in the prior art, the filter screen is usually installed inside the ventilation device to purify the air. However, in the actual use process, since the filter screen is inside the ventilation device, it takes a lot of time to disassemble, replace, and clean it, resulting in the machine needing to stop for a long time. When the ventilation device needs to be used continuously, the replacement of the filter screen will affect the normal use of the ventilation device, and the replacement of the filter screen is too cumbersome. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides an efficient ventilation device for a household elevator, and adopts the following technical solutions:

[0005] An efficient ventilation device for a household elevator includes a main body module and a quick replacement module. The main body module includes two ventilation cylinders. A plurality of ventilation holes are opened at the top of one of the ventilation cylinders, and a plurality of ventilation holes are opened at the bottom of the other ventilation cylinder. A fan is arranged 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 fixedly installed at a through groove opened at the top inside the elevator by bolts. A disassembly and installation door is hinged on the outer surface of the hollow disc. The quick replacement module includes a central rotating column rotatably connected between the top and the bottom of the hollow disc. A cross plate is fixedly connected to the outer surface of the central rotating column. Four installation components are arranged at equal intervals in a ring shape on the outer surface of the cross plate. Filter screens are arranged inside all four installation components. A limiting component is arranged between the bottom of the inner wall of the hollow disc and the four installation components. An active steering component is arranged at the bottom end of the central rotating column. A sealing component is arranged between the outer surfaces of the two ventilation cylinders and the inside of the hollow disc. The sealing component is connected to one of the installation components. One of the filter screens is located between the two ventilation cylinders. A driving component is arranged at the bottom of the hollow disc. The driving component is connected to the sealing component and is adapted to the active steering component.

[0006] Further, the movable steering assembly includes a ninety-degree grooved wheel fixedly connected to the bottom end of the central rotating column. A rotating shaft is rotatably connected to the bottom of the hollow disc. A driving wheel disc is fixedly connected to the bottom end of the rotating shaft. The outer surface of the driving wheel disc is movably connected to the outer surface of the ninety-degree grooved wheel. A limiting ratchet tooth is fixedly connected to the outer surface of the rotating shaft. A limiting ratchet wheel is movably connected to the bottom of the hollow disc. One end of the limiting ratchet wheel is movably connected to the outer surface of the limiting ratchet tooth.

[0007] Further, the movable steering assembly further includes a hollow gear rotatably connected to the bottom of the driving wheel disc. An inner wheel located inside the hollow gear is fixedly connected to the bottom of the driving wheel disc. A plurality of boosting ratchet teeth are movably connected to the bottom of the inner wheel. A limiting ratchet groove is formed in the inner wall of the hollow gear. One end of each of the plurality of boosting ratchet teeth is movably connected to the inside of the limiting ratchet groove. A plurality of elastic sheets are fixedly connected to the bottom of the inner wheel. The outer surfaces of the plurality of elastic sheets are respectively in contact with the outer surfaces of the plurality of boosting ratchet teeth.

[0008] Further, the sealing assembly includes two sealing cylinders respectively movably inserted into the bottoms and tops of the two ventilation cylinders. Connecting grooves are formed on the outer surfaces of the two ventilation cylinders. Fixed blocks are fixedly connected to the outer surfaces of the two ventilation cylinders. A bidirectional screw rod is rotatably connected between the outer surfaces of the two fixed blocks. The bidirectional screw rod penetrates through the hollow disc. Two connecting pieces are threadedly connected to the outer surface of the bidirectional screw rod. The two connecting pieces are respectively fixedly connected to the two sealing cylinders through the two connecting grooves.

[0009] Further, the sealing assembly further 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. Transmission rollers are fixedly connected to the lower part of the outer surface of the bottom end of the first connecting shaft and the outer surface of the bidirectional screw rod respectively. A transmission belt is connected in a transmission manner between the outer surfaces of the two transmission rollers.

[0010] Further, the driving assembly includes two second connecting shafts rotatably connected to the bottom of the hollow disc. A first sector gear and a driving gear are fixedly connected to the outer surface of one of the second connecting shafts. The first sector gear meshes with the connecting gear and is adapted to the hollow gear. A second sector gear and a hollow bar are fixedly connected to the outer surface of the other second connecting shaft. The outer surface of the second sector gear meshes with the driving gear.

[0011] Further, the driving assembly further includes a driving motor fixedly connected to the bottom inner wall of the hollow disc. The output shaft of the driving motor extends to the bottom of the hollow disc and is fixedly connected to a driving disc. A driving shaft is fixedly connected to the bottom of the driving disc. The driving shaft is movably connected to the inside of the hollow bar.

[0012] Further, the installation component includes a slot formed on the outer surface of the cross plate. A square metal insertion rod is movably inserted into the slot. A magnetic block magnetically connected to one end of the square metal insertion rod is fixedly connected inside the slot. The other end of the square metal insertion rod is fixedly connected to a mounting plate. Annular sealing grooves are formed at the top and bottom of the mounting plate. One of the filter nets is fixedly connected inside the mounting plate. The adjacent ends of the two sealing cylinders are respectively movably inserted into the two annular sealing grooves.

[0013] Further, the limiting component includes four L-shaped rods. The top ends of the L-shaped rods are 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. The notch is located on one side of the disassembly and assembly door. The bottom ends of the four L-shaped rods are all movably connected with balls. Three of the balls are in contact with the inner wall of the annular piece, and the other ball is close to the notch.

[0014] Further, the main body module further includes a control panel installed on the outer wall of the hollow disc for manual touch. The control panel is electrically connected to the fan and the driving motor. A support plate is fixedly connected to the bottom of the hollow disc. An opening is formed on the outer wall of the support plate, and a matching opening door is provided at the opening.

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

[0016] (1) Through the settings of the central rotating column, cross plate, installation component, filter net, movable steering component, sealing component and driving component, the present invention enables the device to quickly switch the filter net without the device stopping for a long time, avoiding seriously affecting the use of the device. At the same time, the switching operation is convenient and fast, solving the problem of cumbersome operation and facilitating the user to operate.

[0017] (2) Through the settings of the limiting component, installation component and disassembly and assembly door, the limiting component can limit the position of the installation component, improving the stability of the installation component. At the same time, the installation component enables the filter net to be conveniently disassembled, thus facilitating the operation of the staff and improving the convenience of the operation.

[0018] (3) Through the settings of the limiting ratchet and limiting ratchet wheel, the present invention can limit the rotation direction of the driving wheel disc, avoiding the driving wheel disc from being driven to rotate in the reverse direction, thereby improving the stability of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the present invention;

[0020] Figure 2 is the sectional structural schematic diagram of the present invention;

[0021] Figure 3 This is the schematic diagram of the upward view of the 90-degree grooved wheel of the present invention;

[0022] Figure 4 For the present invention Figure 3 The enlarged schematic diagram of the structure at position A in it;

[0023] Figure 5 For the present invention Figure 4 The enlarged schematic diagram of the structure at position B in it;

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

[0025] Figure 7 This is the sectional view schematic diagram of the installation component of the present invention;

[0026] Figure 8 This is the position schematic diagram of the limiting ratchet wheel and the limiting ratchet teeth of the present invention.

[0027] Explanation of the reference numerals in the figure:

[0028] 100, main body module; 110, ventilation cylinder; 120, ventilation hole; 140, fan; 150, hollow disc; 160, support plate; 170, disassembly and installation door;

[0029] 200, quick replacement module; 210, central rotating column; 220, cross plate; 230, installation component; 231, magnetic block; 232, square metal insertion rod; 233, installation plate; 234, annular sealing groove; 240, filter screen; 250, limiting component; 251, annular sheet; 252, L-shaped rod; 253, ball; 260, movable steering component; 261, 90-degree grooved wheel; 262, driving wheel disc; 263, hollow gear; 264, inner wheel; 265, elastic sheet; 266, boosting ratchet tooth; 267, limiting ratchet tooth; 268, limiting ratchet wheel; 270, sealing component; 271, sealing cylinder; 272, connecting piece; 273, fixed block; 274, bidirectional screw; 275, first connecting shaft; 276, connecting gear; 277, transmission roller; 278, transmission belt; 280, driving component; 281, second connecting shaft; 282, first sector gear; 283, driving gear; 284, second sector gear; 285, hollow strip; 286, driving motor; 287, driving disc; 288, driving shaft. Detailed implementation manners

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The following will further elaborate on the present invention in conjunction with the attached Figure 1-8 Drawings.

[0034] Please refer to Figure 1-8, A highly efficient ventilation device for a household elevator. The main body module 100 includes two ventilation cylinders 110. A plurality of ventilation holes 120 are provided at the top of one of the ventilation cylinders 110, and a plurality of ventilation holes 120 are provided at the bottom of the other ventilation cylinder 110. A fan 140 is provided 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 fixedly installed at the through groove provided at the top of the elevator by bolts. A disassembly and installation door 170 is hinged on the outer surface of the hollow disc 150. The quick replacement module 200 includes a central rotating column 210 rotatably connected between the top and the bottom of the hollow disc 150. A cross plate 220 is fixedly connected to the outer surface of the central rotating column 210. Four installation components 230 are arranged at equal intervals in a circular shape on the outer surface of the cross plate 220. Filter nets 240 are arranged inside the four installation components 230. A limiting component 250 is arranged between the bottom of the inner wall of the hollow disc 150 and the four installation components 230. An active steering component 260 is arranged at the bottom end of the central rotating column 210. A sealing component 270 is arranged between the outer surfaces of the two ventilation cylinders 110 and the inside of the hollow disc 150. The sealing component 270 is connected to one of the installation components 230. One of the filter nets 240 is located between the two ventilation cylinders 110. A driving component 280 is arranged at the bottom of the hollow disc 150. The driving component 280 is connected to the sealing component 270 and is adapted to the active steering component 260.

[0035] During the use process, turn on the fan 140. The fan 140 will draw air, so that the air enters through the ventilation holes 120 on the ventilation cylinder 110 and is filtered by one of the filter nets 240. After the filtration is completed, the air will enter the elevator, thus completing the filtration step. When the filter net 240 needs to be replaced after long-term use, turn on the driving component 280. The driving component 280 will first drive the sealing component 270. The sealing component 270 will disconnect from one of the installation components 230. Subsequently, the driving component 280 will disengage from the sealing component 270 and drive the active steering component 260. The active steering component 260 will rotate idly. When the driving component 280 resets, it will first drive the active steering component 260. The active steering component 260 drives the central rotating column 210 to rotate by 90 degrees. The central rotating column 210 drives the cross plate 220 and the four installation components 230 to rotate by 90 degrees, so that another installation component 230 and the filter net 240 will be displaced between the two ventilation cylinders 110. When the driving component 280 resets and drives the sealing component 270, the sealing component 270 will be hermetically connected to another installation component 230, so as to complete the quick switching of the filter net 240, thus eliminating the need for the machine to stop for a long time. At the same time, the overall switching step is convenient and fast, facilitating the operation of the staff and improving the convenience of the machine during use.

[0036] The active steering assembly 260 includes a ninety-degree grooved wheel 261 fixedly connected to the bottom end of the central rotating column 210. A rotating shaft is rotatably connected to the bottom of the hollow disc 150. The bottom end of the rotating shaft is fixedly connected to a driving wheel disc 262. The outer surface of the driving wheel disc 262 is movably connected to the outer surface of the ninety-degree grooved wheel 261. A limiting ratchet tooth 267 is fixedly connected to the outer surface of the rotating shaft. A limiting ratchet wheel 268 is movably connected to the bottom of the hollow disc 150. One end of the limiting ratchet wheel 268 is movably connected to the outer surface of the limiting ratchet tooth 267. The active steering assembly 260 further includes a hollow gear 263 rotatably connected to the bottom of the driving wheel disc 262. An inner wheel 264 is fixedly connected to the bottom of the driving wheel disc 262 and is located inside the hollow gear 263. A plurality of boosting ratchet teeth 266 are movably connected to the bottom of the inner wheel 264. A limiting ratchet groove is formed in the inner wall of the hollow gear 263. One end of each of the plurality of boosting ratchet teeth 266 is movably connected to the inside of the limiting ratchet groove. A plurality of elastic sheets 265 are fixedly connected to the bottom of the inner wheel 264. The outer surfaces of the plurality of elastic sheets 265 are respectively in contact with the outer surfaces of the plurality of boosting ratchet teeth 266. The sealing assembly 270 includes two sealing cylinders 271 respectively movably inserted into the bottoms and tops of the two ventilation cylinders 110. Connecting grooves are formed in the outer surfaces of the two ventilation cylinders 110. Fixing blocks 273 are fixedly connected to the outer surfaces of the two ventilation cylinders 110. A bidirectional screw 274 is rotatably connected between the outer surfaces of the two fixing blocks 273. The bidirectional screw 274 penetrates through the hollow disc 150. Two connecting pieces 272 are threadedly connected to the outer surface of the bidirectional screw 274. The two connecting pieces 272 are respectively fixedly connected to the two sealing cylinders 271 through the two connecting grooves. 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. Transmission rollers 277 are fixedly connected to the lower part of the outer surface of the bottom end of the first connecting shaft 275 and the outer surface of the bidirectional screw 274. A transmission belt 278 is connected in transmission between the outer surfaces of the two transmission rollers 277. The driving assembly 280 includes two second connecting shafts 281 rotatably connected to the bottom of the hollow disc 150. A first sector gear 282 and a driving gear 283 are fixedly connected to the outer surface of one of the second connecting shafts 281. The first sector gear 282 meshes with the connecting gear 276 and is adapted to the hollow gear 263. A second sector gear 284 and a hollow bar 285 are fixedly connected to the outer surface of the other second connecting shaft 281. The outer surface of the second sector gear 284 meshes with the driving gear 283. The driving assembly 280 further includes a driving motor 286 fixedly connected to the bottom inner wall of the hollow disc 150. The output shaft of the driving motor 286 extends to the bottom of the hollow disc 150 and is fixedly connected to a driving disc 287. A driving shaft 288 is fixedly connected to the bottom of the driving disc 287. The driving shaft 288 is movably connected to the inside of the hollow bar 285.

[0037] When the filter screen 240 needs to be replaced after long-term use, turn on the drive motor 286. The drive motor 286 will drive the drive disk 287 and the 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 push 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 two connecting pieces 272 to drive 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 wheel disk 262 is restricted by the limit ratchet teeth 267 and the limit ratchet wheel 268, the hollow gear 263 will idle at the bottom of the drive wheel disk 262. During the idling process, the limit ratchet groove will push the boost ratchet tooth 266 to move, and the elastic piece 265 will make the boost ratchet tooth 266 closely adhere to the limit ratchet groove. Subsequently, the first sector gear 282 will be reset, and thus the boost ratchet tooth 266 will be pushed through the hollow gear 263 and the limit ratchet groove. The boost ratchet tooth 266 will drive the inner wheel 264 and the drive wheel disk 262 to rotate. The drive wheel disk 262 will drive the ninety-degree grooved wheel 261 to rotate by ninety degrees, so that the central rotating column 210 will drive the cross plate 220 and the four mounting components 230 to rotate by ninety degrees, thereby displacing another mounting component 230 and the filter screen 240 between the two ventilation cylinders 110. Subsequently, the first sector gear 282 will drive the connecting gear 276 in the reverse direction, so that the two sealing cylinders 271 will approach 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 that there is no need for the machine to stop for a long time, and at the same time, the overall switching steps are convenient and fast.

[0038] The installation component 230 includes a slot formed on the outer surface of the cross-shaped plate 220. A square metal insertion rod 232 is movably inserted into the slot. A magnetic block 231 magnetically connected to one end of the square metal insertion rod 232 is fixedly connected inside the slot. The other end of the square metal insertion rod 232 is fixedly connected to a mounting plate 233. Annular sealing grooves 234 are formed at both the top and bottom of the mounting plate 233. One of the filter nets 240 is fixedly connected inside the mounting plate 233. Adjacent ends of two sealing cylinders 271 are respectively movably inserted into the two annular sealing grooves 234. The limiting component 250 includes four L-shaped rods 252. The top ends of the L-shaped rods 252 are 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, and the notch is located on one side of the disassembly and assembly door 170. Ball bearings 253 are movably connected to the bottom ends of the four L-shaped rods 252. The inner walls of the annular piece 251 are cut off by three of the ball bearings 253, and the other ball bearing 253 is close to the notch.

[0039] When the mounting plate 233 moves, the ball bearings 253 will roll on the inner wall of the annular piece 251, thereby restricting the positions of the ball bearings 253. For the mounting plate 233 located at the notch, the staff can open the disassembly and assembly door 170, and then pull the mounting plate 233 outwards. The mounting plate 233 will drive the square metal insertion rod 232 to separate from the magnetic block 231, and take it out through the disassembly and assembly door 170 to complete the disassembly. Subsequently, the new installation component 230 or the cleaned installation component 230 can be installed by reverse operation, making the disassembly of the filter net 240 convenient and fast, and improving the convenience of machine use.

[0040] The main body module 100 further includes a control panel installed on the outer wall of the hollow disc 150 for manual touch. The control panel is electrically connected to the blower 140 and the drive motor 286. A support plate 160 is fixedly connected to the bottom of the hollow disc 150. An opening is formed on the outer wall of the support plate 160, and a matching opening door is provided at the opening.

[0041] The implementation principle of the embodiment of the present invention is as follows: Air is made to enter through the ventilation holes 120 on the ventilation cylinder 110 and pass through one of the filter nets 240 for filtration. After the filtration is completed, the air will enter the elevator, thus completing the filtration step. When the filter net 240 needs to be replaced after long-term use, the drive motor 286 is turned on through the control panel. The drive motor 286 will drive the drive disk 287 and the 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 push 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 two connecting pieces 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 disengages from the connecting gear 276 and drives the hollow gear 263. Since the rotation direction of the drive wheel disk 262 is restricted by the limit ratchet teeth 267 and the limit ratchet wheel 268, the hollow gear 263 will rotate idly at the bottom of the drive wheel disk 262. During the idling process, the limit ratchet groove will push the boost ratchet tooth 266 to move, and the elastic piece 265 will make the boost ratchet tooth 266 closely adhere to the limit ratchet groove. Subsequently, the first sector gear 282 will be reset, and thus the boost ratchet tooth 266 will be pushed through the hollow gear 263 and the limit ratchet groove. The boost ratchet tooth 266 will drive the inner wheel 264 and the drive wheel disk 262 to rotate. The drive wheel disk 262 will drive the ninety-degree cam 261 to rotate by ninety degrees, so that the central rotating column 210 will drive the cross plate 220 and the four mounting components 230 to rotate by ninety degrees, so that another mounting component 230 and the filter net 240 are displaced between the two ventilation cylinders 110. Subsequently, the first sector gear 282 drives the connecting gear 276 in the reverse direction, so that the two sealing cylinders 271 approach each other and are inserted back into the two annular sealing grooves 234 to complete the sealing connection, thereby completing the rapid switching of the filter net 240, so that there is no need for the machine to stop for a long time. At the same time, the overall switching step is convenient and fast, facilitating the operation of the staff and improving the convenience of using the machine. When the mounting plate 233 moves, the ball 253 will roll on the inner wall of the annular piece 251, thereby restricting the position of the ball 253. For the mounting plate 233 located at the notch, the staff can open the disassembly and assembly door 170, and then pull the mounting plate 233 outwards. The mounting plate 233 will drive the square metal insertion rod 232 to separate from the magnetic block 231, and take it out through the disassembly and assembly door 170 to complete the disassembly. Subsequently, the new mounting component 230 or the cleaned mounting component 230 can be installed by reverse operation, so that the filter net 240 can be disassembled conveniently and quickly, improving the convenience of using the machine.

[0042] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. An efficient ventilation device for a household elevator, comprising a main body module (100) and a rapid replacement module (200), characterized in that: The main body module (100) includes two ventilation cylinders (110). A plurality of ventilation holes (120) are provided at the top of one of the ventilation cylinders (110), and a plurality of ventilation holes (120) are provided at the bottom of the other ventilation cylinder (110). A fan (140) is arranged 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 fixedly installed at a through groove opened at the top inside the elevator by bolts. A disassembly and installation door (170) is hinged to the outer surface of the hollow disc (150); The quick replacement module (200) includes a central rotating column (210) rotatably connected between the top and the bottom of the hollow disc (150). A cross plate (220) is fixedly connected to the outer surface of the central rotating column (210). Four installation components (230) are arranged on the outer surface of the cross plate (220) at equal intervals in a circular shape. Filter nets (240) are arranged inside the four installation components (230). A limiting component (250) is arranged between the bottom of the inner wall of the hollow disc (150) and the four installation components (230). A movable steering component (260) is arranged at the bottom end of the central rotating column (210). A sealing component (270) is arranged between the outer surfaces of the two ventilation cylinders (110) and the inside of the hollow disc (150). The sealing component (270) is connected to one of the installation components (230). One of the filter nets (240) is located between the two ventilation cylinders (110). A driving component (280) is arranged at the bottom of the hollow disc (150). The driving component (280) is connected to the sealing component (270) and is adapted to the movable steering component (260).

2. The highly efficient ventilation device for a household elevator according to claim 1, characterized in that: The movable steering component (260) includes a ninety-degree grooved wheel (261) fixedly connected to the bottom end of the central rotating column (210). A rotating shaft is rotatably connected to the bottom of the hollow disc (150). A driving wheel disc (262) is fixedly connected to the bottom end of the rotating shaft. The outer surface of the driving wheel disc (262) is movably connected to the outer surface of the ninety-degree grooved wheel (261). A limiting ratchet tooth (267) is fixedly connected to the outer surface of the rotating shaft. A limiting ratchet wheel (268) is movably connected to the bottom of the hollow disc (150). One end of the limiting ratchet wheel (268) is movably connected to the outer surface of the limiting ratchet tooth (267).

3. The high-efficiency ventilation device for a household elevator according to claim 2, wherein: The movable steering component (260) further includes a hollow gear (263) rotatably connected to the bottom of the driving wheel disc (262). The bottom of the driving wheel disc (262) is fixedly connected with an inner wheel (264) located inside the hollow gear (263). The bottom of the inner wheel (264) is movably connected with a plurality of boosting ratchet teeth (266). The inner wall of the hollow gear (263) is provided with a limiting ratchet groove, and one ends of the plurality of boosting ratchet teeth (266) are all movably connected inside the limiting ratchet groove. The bottom of the inner wheel (264) is fixedly connected with a plurality of elastic sheets (265), and the outer surfaces of the plurality of elastic sheets (265) are respectively in contact with the outer surfaces of the plurality of boosting ratchet teeth (266).

4. The high-efficiency ventilation device for a household elevator according to claim 3, characterized in that: The sealing component (270) includes two sealing cylinders (271) respectively movably inserted into the bottoms and tops of the two ventilation cylinders (110). The outer surfaces of the two ventilation cylinders (110) are both provided with connecting grooves. The outer surfaces of the two ventilation cylinders (110) are both fixedly connected with fixing blocks (273). A bidirectional screw (274) is rotatably connected between the outer surfaces of the two fixing blocks (273). The bidirectional screw (274) penetrates through the hollow disc (150). Two connecting pieces (272) are threadedly connected to the outer surface of the bidirectional screw (274), and the two connecting pieces (272) are respectively fixedly connected with the two sealing cylinders (271) through the two connecting grooves.

5. The high-efficiency ventilation device for a household elevator according to claim 4, wherein: The sealing component (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 in transmission between the outer surfaces of the two transmission rollers (277).

6. The efficient ventilation device for a household elevator according to claim 5, characterized in that: The driving component (280) includes two second connecting shafts (281) rotatably connected to the bottom of the hollow disc (150). A first sector gear (282) and a driving gear (283) are fixedly connected to the outer surface of one of the second connecting shafts (281). The first sector gear (282) meshes with the connecting gear (276), and the first sector gear (282) is adapted to the hollow gear (263). A second sector gear (284) and a hollow bar (285) are fixedly connected to the outer surface of the other second connecting shaft (281). The outer surface of the second sector gear (284) meshes with the driving gear (283).

7. The high-efficiency ventilation device for a household elevator according to claim 6, characterized in that: The driving component (280) further includes a driving motor (286) fixedly connected to the bottom inner wall of the hollow disc (150). The output shaft of the driving motor (286) extends to the bottom of the hollow disc (150) and is fixedly connected with a driving disc (287). A driving shaft (288) is fixedly connected to the bottom of the driving disc (287). The driving shaft (288) is movably connected inside the hollow bar (285).

8. The high-efficiency ventilation device for a household elevator according to claim 7, wherein: The installation component (230) includes a slot formed on the outer surface of the cross plate (220). A square metal insertion rod (232) is movably inserted into the slot. A magnetic block (231) magnetically connected to one end of the square metal insertion rod (232) is fixedly connected inside the slot. The other end of the square metal insertion rod (232) is fixedly connected to a mounting plate (233). Annular sealing grooves (234) are formed at the top and bottom of the mounting plate (233). One of the filter nets (240) is fixedly connected inside the mounting plate (233). The adjacent ends of the two sealing cylinders (271) are respectively movably inserted into the two annular sealing grooves (234).

9. The highly efficient ventilation device for a household elevator according to claim 8, characterized in that: The limiting component (250) includes four L-shaped rods (252). The top ends of the L-shaped rods (252) are 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). The notch is located on one side of the disassembly and assembly door (170). The bottom ends of the four L-shaped rods (252) are all movably connected with balls (253). The inner walls of the annular piece (251) are cut off by three of the balls (253). The other ball (253) is close to the notch.

10. The high-efficiency ventilation device for a household elevator according to claim 9, wherein: The main body module (100) further includes a control panel installed on the outer wall of the hollow disc (150) for manual touch. The control panel is electrically connected to the fan (140) and the driving motor (286). A support plate (160) is fixedly connected to the bottom of the hollow disc (150). An opening is formed on the outer wall of the support plate (160), and a matching opening door is provided at the opening.

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