An elevator car air purification and circulation device

Abstract

This utility model discloses an air purification and circulation device for an elevator car, belonging to the field of air purification technology. It includes a purification box with an air inlet on one side and an air outlet on the other side. A first air inlet pipe is fixedly connected inside the air inlet, and a first air outlet pipe is fixedly connected inside the air outlet. A fan is fixedly connected to one end of the first air outlet pipe. This utility model utilizes a worm gear transmission structure, where the worm meshes with two worm gears. By employing transmission synchronization, the two worm gears rotate at the same speed, enabling a single drive assembly to synchronously control two sets of cleaning mechanisms. This reduces the need for drive motors, lowers costs, and reduces energy consumption. The worm gears are coaxially fixed with a threaded rod, converting the rotation of the worm gears into the rotation of the threaded rod, providing a stable driving force for the bidirectional scraper. This simultaneously cleans impurities from the surface of the interceptor and activated carbon filter, effectively reducing internal air resistance and ensuring air circulation and purification efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of air purification technology, specifically relating to an air purification and circulation device for elevator cars. Background Technology

[0002] An elevator car air purification and circulation device is an air purification device installed on an elevator car. It effectively removes dust, bacteria and other harmful substances from the air, improves the air quality inside the car, and provides passengers with a healthy and comfortable riding environment.

[0003] During operation, the internal multi-layer filter of the existing elevator car air purification and circulation device is easily clogged by dust and other impurities, which increases the airflow resistance. This not only leads to a decrease in purification efficiency, but also causes problems such as increased energy consumption and maintenance frequency. Therefore, an elevator car air purification and circulation device is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an air purification and circulation device for elevator cars to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an elevator car air purification and circulation device, comprising a purification box, an air inlet on one side surface of the purification box, an air outlet on the other side surface of the purification box, a first air inlet pipe fixedly connected inside the air inlet, a first air outlet pipe fixedly connected inside the air outlet, a fan fixedly connected to one end of the first air outlet pipe, a support base fixedly connected to the bottom of the fan, a second air outlet pipe fixedly connected to one end of the fan, an elevator car fixedly connected to one end of the second air outlet pipe, an interception net inserted inside the purification box, and an activated carbon filter inserted inside the purification box. An ultraviolet germicidal lamp is fixedly connected inside the purification chamber. A worm gear is rotatably connected inside the purification chamber, and a drive motor is fixedly connected to one end of the worm gear. Two worm wheels are meshed with the surface of the worm gear. Two conical guide rings are fixedly connected inside the purification chamber. Each of the two conical guide rings has a limiting groove inside. A limiting screw hole slip ring is slidably connected to the inner wall of each of the two limiting grooves. A threaded rod is threadedly connected to the inner wall of each of the two limiting screw hole slip rings. A guide groove is provided inside each of the two conical guide rings. A guide plate is slidably connected to the inner wall of each of the two guide grooves. A bidirectional scraper is fixedly connected to the other end of each of the two guide plates.

[0006] By setting up the above structure, the worm gear meshes with the double worm wheels, and the transmission synchronization makes the two worm wheels rotate at the same speed. This allows one drive component to synchronously control two sets of cleaning mechanisms, reducing the need for drive motors, reducing costs and energy consumption. The worm wheel and the threaded rod are fixed coaxially, converting the rotation of the worm wheel into the rotation of the threaded rod, providing a stable driving force for the bidirectional scraper. This simultaneously cleans impurities on the surface of the interception net and activated carbon filter, effectively reducing the air resistance inside the purification chamber, ensuring air circulation and purification efficiency. At the same time, the conical design of the conical guide ring can guide the air drawn into the purification chamber and protect the transmission structure composed of the threaded rod and the limiting screw hole slip ring, effectively preventing impurities in the air from entering the conical guide ring and avoiding affecting the normal operation of the transmission structure.

[0007] As a preferred embodiment, the top of the elevator car is fixedly connected to the bottom of the purification box, the top of the elevator car is fixedly connected to one end of the first air outlet pipe, and the top of the elevator car is fixedly connected to the bottom of the support base.

[0008] As a preferred embodiment, one side surface of the drive motor is fixedly connected to one side surface of the purification chamber.

[0009] As a preferred embodiment, the two worm gears rotate inside the purification chamber.

[0010] As a preferred embodiment, one end of each of the two threaded rods is fixedly connected to one side surface of the worm gear, and the other end of each of the two threaded rods rotates inside the purification chamber.

[0011] As a preferred embodiment, the two guide grooves are respectively connected to the limiting groove, and one end of the two guide slides is respectively fixedly connected to the surface of the limiting screw hole slip ring.

[0012] As a preferred embodiment, one of the bidirectional scrapers is attached to the surface of the interception mesh, and the other bidirectional scraper is attached to the surface of the activated carbon filter mesh.

[0013] By setting a limiting screw hole slip ring and a limiting slide groove, the limiting screw hole slip ring slides precisely within the limiting slide groove, allowing it to move linearly along the axis of the threaded rod. In conjunction with the guide slide groove and guide slide plate, it not only ensures that the bidirectional scraper always adheres to the surface of the interception net and activated carbon filter screen during movement, guaranteeing the cleaning effect, but also achieves precise guidance of the bidirectional scraper's movement through the double limiting structure, preventing the scraper from deviating or shaking during reciprocating sliding, and ensuring the accuracy of the bidirectional scraper's movement.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes a worm gear transmission structure where the worm meshes with two worm gears. By leveraging the synchronicity of the transmission, the two worm gears rotate at the same speed, enabling a single drive assembly to synchronously control two cleaning mechanisms. This reduces the need for a drive motor, lowering costs and energy consumption. The worm gears are coaxially fixed with the threaded rod, converting the worm gear rotation into threaded rod rotation, providing a stable driving force for the bidirectional scraper. This simultaneously cleans impurities from the surface of the interceptor and activated carbon filter, effectively reducing air resistance inside the purification chamber and ensuring airflow and purification efficiency. Furthermore, the conical design of the conical guide ring guides the air drawn into the purification chamber and protects the transmission structure composed of the threaded rod and the limiting screw hole slip ring, effectively preventing airborne debris from entering the conical guide ring and affecting the normal operation of the transmission structure.

[0016] This invention, by setting a limiting screw hole slip ring and a limiting slide groove, allows the limiting screw hole slip ring to slide precisely within the limiting slide groove, enabling it to move linearly along the axis of the threaded rod. Combined with the guide slide groove and guide slide plate, this not only ensures that the bidirectional scraper remains in contact with the surface of the interception mesh and activated carbon filter mesh during movement, guaranteeing cleaning effectiveness, but also achieves precise guidance of the bidirectional scraper's movement through the double limiting structure, preventing the scraper from shifting or wobbling during reciprocating sliding and ensuring the accuracy of the bidirectional scraper's movement. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the purification box of this utility model;

[0019] Figure 3 This is a schematic diagram of the worm gear of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Purification box; 2. Air inlet; 3. Air outlet; 4. First air inlet pipe; 5. First air outlet pipe; 6. Fan; 7. Support base; 8. Second air outlet pipe; 9. Elevator car; 10. Interception net; 11. Activated carbon filter; 12. Ultraviolet germicidal lamp; 13. Worm gear; 14. Drive motor; 15. Worm wheel; 16. Conical guide ring; 17. Limiting slide groove; 18. Limiting screw hole slip ring; 19. Threaded rod; 20. Guide slide groove; 21. Guide slide plate; 22. Two-way scraper. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments.

[0023] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the concept of the present invention are all within the scope of protection claimed by the present invention.

[0024] Please see Figure 1-4 This utility model provides an air purification and circulation device for an elevator car, including a purification box 1. An air inlet 2 is provided on one side of the purification box 1, and an air outlet 3 is provided on the other side. A first air inlet pipe 4 is fixedly connected inside the air inlet 2, and a first air outlet pipe 5 is fixedly connected inside the air outlet 3. A fan 6 is fixedly connected to one end of the first air outlet pipe 5, and a support base 7 is fixedly connected to the bottom of the fan 6. A second air outlet pipe 8 is fixedly connected to one end of the fan 6, and an elevator car 9 is fixedly connected to one end of the second air outlet pipe 8. A connecting... An interceptor net 10 is connected to the inside of the purification chamber 1. An activated carbon filter 11 is inserted and connected inside the purification chamber 1. An ultraviolet germicidal lamp 12 is fixedly connected inside the purification chamber 1. A worm gear 13 is rotatably connected inside the purification chamber 1. A drive motor 14 is fixedly connected to one end of the worm gear 13. Two worm wheels 15 are meshed on the surface of the worm gear 13. Two conical guide rings 16 are fixedly connected inside the purification chamber 1. Limiting grooves 17 are respectively opened inside the two conical guide rings 16. Limiting screw hole slip rings 18 are slidably connected to the inner walls of the two limiting grooves 17. The internal parts of the 18 are threaded with threaded rods 19. Two conical guide rings 16 have guide grooves 20 inside. Guide slide plates 21 are slidably connected to the inner walls of the two guide grooves 20. Two bidirectional scrapers 22 are fixedly connected to the other ends of the two guide slide plates 21. A worm gear 15 and worm 13 transmission structure are used, with the worm 13 meshing with the two worm gears 15. By utilizing the transmission synchronization, the two worm gears 15 rotate at the same speed, achieving synchronous control of two cleaning mechanisms with one drive assembly. This reduces the configuration of the drive motor 14, lowering costs and reducing consumption. The worm gear 15 and threaded rods 19... The worm gear 15 is fixed coaxially, which converts the rotation of the worm gear 15 into the rotation of the threaded rod 19, providing a stable driving force for the bidirectional scraper 22. It simultaneously cleans the impurities on the surface of the interception net 10 and the activated carbon filter 11, effectively reducing the air resistance inside the purification box 1 and ensuring air circulation and purification efficiency. At the same time, the conical design of the conical guide ring 16 can guide the air drawn into the purification box 1 and can also protect the transmission structure composed of the threaded rod 19 and the limiting screw hole slip ring 18, effectively preventing impurities in the air from entering the conical guide ring 16 and avoiding affecting the normal operation of the transmission structure.

[0025] The top of the elevator car 9 is fixedly connected to the bottom of the purification box 1, the top of the elevator car 9 is fixedly connected to one end of the first air outlet pipe 5, and the top of the elevator car 9 is fixedly connected to the bottom of the support seat 7.

[0026] One side surface of the drive motor 14 is fixedly connected to one side surface of the purification box 1.

[0027] The two worm gears 15 rotate inside the purification chamber 1 respectively.

[0028] One end of each of the two threaded rods 19 is fixedly connected to one side surface of the worm gear 15, and the other ends of the two threaded rods 19 rotate inside the purification chamber 1.

[0029] The two guide grooves 20 are respectively connected to the limiting groove 17, and one end of the two guide slides 21 are respectively fixedly connected to the surface of the limiting screw hole slip ring 18.

[0030] One bidirectional scraper 22 is attached to the surface of the interceptor mesh 10, and the other bidirectional scraper 22 is attached to the surface of the activated carbon filter 11. By setting a limiting screw hole slip ring 18 and a limiting slide groove 17, the limiting screw hole slip ring 18 slides precisely within the limiting slide groove 17, allowing it to move linearly along the axis of the threaded rod 19. In conjunction with the guide slide groove 20 and the guide slide plate 21, not only can the bidirectional scraper 22 always be attached to the surfaces of the interceptor mesh 10 and the activated carbon filter 11 during movement, ensuring the cleaning effect, but the double limiting structure can also achieve precise guidance of the movement of the bidirectional scraper 22, preventing the scraper from deviating or shaking during reciprocating sliding, and ensuring the accuracy of the movement of the bidirectional scraper 22.

[0031] Working principle and usage process of this utility model:

[0032] When the air purification and circulation device of the elevator car 9 is working, the fan 6 starts and draws in air from the air inlet 2 through the first air inlet pipe 4. The air is then intercepted by the interception net 10, disinfected by the ultraviolet germicidal lamp 12, and adsorbed and filtered by the activated carbon filter 11. The purified air is then sent back to the car through the first air outlet pipe 5, the fan 6, and the second air outlet pipe 8. At the same time, the drive motor 14 drives the worm gear 13 to rotate at regular intervals. The two meshing worm wheels 15 rotate accordingly, driving the threaded rod 19 fixed on the worm wheel 15 to rotate. This causes the limiting screw hole slip ring 18 to move along the guide groove 20 in the limiting groove 17 of the conical guide ring 16. Through the guide slide plate 21, the bidirectional scraper 22 slides back and forth on the surfaces of the interception net 10 and the activated carbon filter 11, respectively, to remove impurities from both surfaces and effectively prevent blockage. This ensures that the purification box 1 can effectively guarantee air circulation and purification efficiency during use.

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

Claims

1. An elevator car air purification and circulation device, comprising a purification box (1), characterized in that: The purification box (1) has an air inlet (2) on one side surface and an air outlet (3) on the other side surface. A first air inlet pipe (4) is fixedly connected inside the air inlet (2), and a first air outlet pipe (5) is fixedly connected inside the air outlet (3). A fan (6) is fixedly connected to one end of the first air outlet pipe (5), and a support base (7) is fixedly connected to the bottom of the fan (6). A second air outlet pipe (8) is fixedly connected to one end of the fan (6), and an elevator car (9) is fixedly connected to one end of the second air outlet pipe (8). An intercepting net (10) is inserted and connected inside the purification box (1), an activated carbon filter (11) is inserted and connected inside the purification box (1), and an ultraviolet germicidal lamp (12) is fixedly connected inside the purification box (1). The internal rotating connection is a worm gear (13), one end of which is fixedly connected to a drive motor (14). Two worm wheels (15) are meshed on the surface of the worm gear (13). The internal connection of the purification box (1) is two conical guide rings (16). The internal connection of the two conical guide rings (16) is respectively provided with a limiting groove (17). The inner walls of the two limiting grooves (17) are respectively slidably connected with limiting screw hole slip rings (18). The internal connection of the two limiting screw hole slip rings (18) is respectively threaded with a threaded rod (19). The internal connection of the two conical guide rings (16) is respectively provided with a guide groove (20). The inner walls of the two guide grooves (20) are respectively slidably connected with guide slide plates (21). The other end of the two guide slide plates (21) is respectively fixedly connected with a bidirectional scraper (22).

2. The elevator car air purification and circulation device according to claim 1, characterized in that: The top of the elevator car (9) is fixedly connected to the bottom of the purification box (1), the top of the elevator car (9) is fixedly connected to one end of the first air outlet pipe (5), and the top of the elevator car (9) is fixedly connected to the bottom of the support seat (7).

3. The elevator car air purification and circulation device according to claim 1, characterized in that: One side surface of the drive motor (14) is fixedly connected to one side surface of the purification box (1).

4. The elevator car air purification and circulation device according to claim 1, characterized in that: The two worm gears (15) rotate inside the purification chamber (1).

5. The elevator car air purification and circulation device according to claim 1, characterized in that: One end of each of the two threaded rods (19) is fixedly connected to one side surface of the worm gear (15), and the other end of each of the two threaded rods (19) rotates inside the purification box (1).

6. The elevator car air purification and circulation device according to claim 1, characterized in that: The two guide grooves (20) are respectively connected to the limiting groove (17), and one end of the two guide slides (21) is respectively fixedly connected to the surface of the limiting screw hole slip ring (18).

7. The elevator car air purification and circulation device according to claim 1, characterized in that: One of the bidirectional scrapers (22) is attached to the surface of the interceptor mesh (10), and the other bidirectional scraper (22) is attached to the surface of the activated carbon filter mesh (11).

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