An air purification and deodorization structure in an elevator car integrated with internet of things technology

CN224479788UActive Publication Date: 2026-07-10PUTIAN BRANCH OF FUJIAN SPECIAL EQUIP INSPECTION & RES INST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PUTIAN BRANCH OF FUJIAN SPECIAL EQUIP INSPECTION & RES INST
Filing Date
2025-04-21
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Traditional elevator car filters are prone to clogging, difficult to maintain, and have low fresh air exchange efficiency, making them unable to effectively remove odors.

Method used

It adopts a multi-layer filtration component (filter plate, HEPA filter, activated carbon plate) combined with a blower and exhaust system, and uses an IoT camera to detect the number of people for intelligent control, so as to achieve air circulation and efficient purification.

Benefits of technology

It improves air purification efficiency, simplifies the replacement process of filter components, reduces maintenance costs, and achieves energy conservation and a comfortable and healthy elevator environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to air purification technical field especially, it is a kind of elevator car inner air purification and deodorization structure of integrated internet of things technology, the filter screen of existing inconvenient replacement is not simultaneously, the problem of low efficiency of fresh air extruding original air in car, present and propose following scheme, it includes the top frame of being arranged in car top end, the top wall of top frame is equipped with top plate by bolt fixing, two air blowing systems are equipped on the top plate, the bottom of top frame is equipped with the filter assembly corresponding with air blowing system, still be equipped with the joint piece in filter assembly, filter assembly is fixed in top frame using joint piece;Air circulation flow is realized by air blowing system and exhaust fan, in combination with multilayer filter assembly (filter plate, HEPA filter screen, activated carbon plate) high-efficiency purification and deodorization, joint piece design is convenient for filter assembly quick installation and replacement, improves maintenance efficiency, internet of things camera real-time detection number, intelligent control equipment start-stop, energy saving and consumption reduction.
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Description

Technical Field

[0001] This utility model relates to the field of air purification technology, and in particular to an air purification and deodorization structure for elevator cars that integrates Internet of Things (IoT) technology. Background Technology

[0002] In modern buildings, elevators are widely used as vertical transportation tools, and the air quality inside their cars has a significant impact on passenger comfort and health. However, traditional elevator cars have many problems. To address this, utility model patent CN213569018U discloses a residential community-specific air-purifying and deodorizing elevator car. However, this car still has the following drawbacks during use:

[0003] Filters can become clogged after prolonged use, making them difficult to replace and increasing maintenance complexity.

[0004] At the same time, fresh air is used to squeeze out the original air in the car. This ventilation method is inefficient and cannot effectively remove odors when there are many people. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as filter clogging after prolonged use, which makes replacement difficult and increases maintenance complexity; and the inefficiency of using fresh air to expel the existing air from the elevator car, which fails to effectively remove odors when there are many people. Therefore, this invention proposes an elevator car air purification and deodorization structure that integrates Internet of Things (IoT) technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An air purification and deodorization structure for elevator cars integrating Internet of Things (IoT) technology is used in elevator cars to purify the air inside the cars. It includes a top frame installed at the top of the car, a top plate fixed to the top wall of the top frame by bolts, two blowing systems on the top plate, and a filter assembly corresponding to the blowing system at the bottom of the top frame. The filter assembly also has a snap-fit ​​component, which is used to fix the filter assembly in the top frame.

[0008] Rectangular holes are provided on both sides of the car. A first filter frame is embedded in one side of the rectangular hole. An installation plate is fixed on one side of the first filter frame. An exhaust fan is provided on the installation plate. The air circulation inside the car is achieved by exhausting the air from the exhaust fan and supplying air from the blowing system.

[0009] In one possible design, the filter assembly is formed by welding a sealing frame to the bottom wall of the top frame, into which a second filter frame is inserted. The inner top wall of the sealing frame is fixed by welding a limiting plate for limiting the position of the second filter frame. The second filter frame has three first insertion holes on one side, into which a filter plate, a HEPA filter, and an activated carbon plate for air filtration are respectively inserted.

[0010] In one possible design, the snap-fit ​​component includes a sleeve rod fixedly disposed on the inner wall of the bottom end of the second filter frame. A limiting groove is formed on the outer wall of the sleeve rod. Two insert rods located in the limiting groove are slidably disposed inside the sleeve rod. The outer ends of the insert rods extend to the outer side of the second filter frame. A spring is provided inside the sleeve rod. The two ends of the spring are respectively fixedly connected to the adjacent sides of the two insert rods. Second insertion holes for insertion of the insert rods are formed on both inner walls of the sealing frame.

[0011] In one possible design, two guide strips are welded to the bottom of the top frame, and the two guide strips are connected to the top frame by the same air outlet plate for concealing and protecting the plug rod.

[0012] In one possible design, the limiting groove is I-shaped, using the grooves at both ends to limit the insertion rod.

[0013] In one possible design, a camera is bolted to the bottom of the top frame. The camera is connected to an external controller via a wire to detect the number of people in the car and to control the start and stop of the two sets of blowing systems and exhaust fans based on the number of people.

[0014] In this invention, an elevator car air purification and deodorization structure integrating Internet of Things (IoT) technology is described. By incorporating a filter plate, a HEPA filter, and an activated carbon plate in the filter assembly, it can perform multi-layer filtration and purification of the air entering the car. The filter plate can initially intercept large particles of dust and other impurities in the air; the HEPA filter can effectively filter fine particulate matter such as PM2.5; and the activated carbon plate can adsorb odors and harmful gases such as formaldehyde and benzene, greatly improving the cleanliness and freshness of the air inside the car, providing passengers with a healthy and comfortable elevator environment. Combined with the air supply from the blower system and the exhaust from the fan, it achieves air circulation within the car. This air circulation mechanism accelerates the air renewal speed, ensuring that the air in every corner of the car is effectively purified and deodorized, avoiding localized air pollution and further enhancing the air purification effect.

[0015] In this invention, an elevator car air purification and deodorization structure integrating Internet of Things (IoT) technology is described. The filter assembly is fixed to the top frame using snap-fit ​​components, which include a sleeve rod, a plug rod, and a spring. During installation, simply insert the second filter frame into the sealing frame. The plug rod automatically inserts into the second insertion holes on both sides of the sealing frame under the action of the spring, thus fixing the filter assembly. The installation process is simple and quick, requiring no complex tools or professional skills. When the filter assembly needs to be replaced, simply press the plug rod inward to pull it out of the second insertion hole, then remove the second filter frame from the sealing frame. After replacing the filter plate, HEPA filter, and activated carbon plate, reinsert it into the sealing frame. This shortens the replacement time of the filter assembly, reduces maintenance costs, and improves the availability of the equipment.

[0016] In this invention, an elevator car air purification and deodorization structure integrating Internet of Things (IoT) technology features a camera at the bottom of the top frame that can detect the number of people in the car in real time and transmit the information to an external controller. The controller automatically controls the start and stop of two sets of blowing systems and exhaust fans based on the number of people, achieving intelligent management of the air purification and deodorization equipment. When there are many people in the car, the operating power of the equipment is automatically increased to enhance the air purification and deodorization effect; when there are few people in the car, the operating power of the equipment is appropriately reduced to save energy and reduce operating costs.

[0017] In this invention, air circulation is achieved through a blower system and an exhaust fan. Combined with a multi-layer filtration system (filter plate, HEPA filter, activated carbon plate), it efficiently purifies and deodorizes the air. The snap-fit ​​design facilitates quick installation and replacement of the filtration system, improving maintenance efficiency. An IoT camera monitors the number of passengers in real time, and intelligently controls the start and stop of the equipment, saving energy and reducing consumption, thus providing passengers with a comfortable and healthy elevator environment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an elevator car air purification and deodorization structure integrating Internet of Things technology proposed in this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of an elevator car air purification and deodorization structure integrating Internet of Things technology proposed in this utility model, from another perspective.

[0020] Figure 3 A schematic diagram of the installation structure of the top frame and sealing frame of an elevator car air purification and deodorization structure integrating Internet of Things technology proposed in this utility model.

[0021] Figure 4 This is an exploded structural diagram of the filter frame of an elevator car air purification and deodorization structure integrating Internet of Things technology proposed in this utility model.

[0022] Figure 5 A cross-sectional view of the filter frame of an elevator car air purification and deodorization structure integrating Internet of Things technology proposed in this utility model.

[0023] Figure 6 This is a schematic diagram of the sleeve and plug installation structure of an elevator car air purification and deodorization structure integrating Internet of Things technology proposed in this utility model.

[0024] In the diagram: 1. Car; 2. Top plate; 3. Air blowing system; 4. Top frame; 5. Rectangular hole; 6. First filter frame; 7. Mounting plate; 8. Exhaust fan; 9. Camera; 10. Sealing frame; 11. Filter plate; 12. Limiting plate; 13. Second filter frame; 14. First insertion hole; 15. HEPA filter; 16. Activated carbon plate; 17. Guide strip; 18. Air outlet plate; 19. Insert rod; 20. Second insertion hole; 21. Sleeve rod; 22. Limiting groove; 23. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] In modern buildings, elevators are widely used as vertical transportation tools, and the air quality inside the elevator car has a significant impact on the comfort and health of passengers. However, in the existing treatment methods, the filters are not easy to replace, and the ventilation method of using fresh air to squeeze out the original air in the car is inefficient. To address this problem, this solution designs an air purification and deodorization structure.

[0028] Reference Figures 1-6 An air purification and deodorization structure includes: a top frame 4 (6063-T5 aluminum alloy profile, anodized surface) installed at the top of an elevator car 1, with a top plate 2 fixedly mounted on the top wall of the top frame 4 by bolts. Two mounting holes are provided on the top plate 2 for installing two air blowing systems 3. The air blowing systems 3 can be existing fan equipment, with their outlets facing the interior of the car 1 for supplying air into the car 1.

[0029] The filter assembly is located at the bottom of the top frame 4, corresponding to the blowing system 3. The specific structure is as follows: a sealing frame 10 (304 stainless steel sheet metal) is welded to the bottom wall of the top frame 4, and a second filter frame 13 is inserted into the sealing frame 10. A limiting plate 12 is welded and fixed to the inner wall of the top of the sealing frame 10, which limits the second filter frame 13 and prevents it from moving excessively upwards. Three first insertion holes 14 are opened on one side of the second filter frame 13, for inserting a filter plate 11, a HEPA filter 15, and an activated carbon plate 16, respectively. The filter plate 11 can be a pre-filter made of polyester fiber, used to filter large dust particles in the air; the HEPA filter 15 is used to filter fine particulate matter in the air; the activated carbon plate 16 is used to adsorb odors and harmful gases in the air, ensuring that the air supplied to the car 1 is clean and odorless. After installation, one side of the filter plate 11, the HEPA filter 15, and the activated carbon plate 16 all abut against one side of the inner wall of the sealing frame 10.

[0030] It also includes a snap-fit ​​connector, which is used to fix the second filter frame 13 inside the sealing frame 10. The specific structure is as follows: A sleeve rod 21 (304 stainless steel) is fixedly installed on the inner wall of the bottom end of the second filter frame 13, and a limiting groove 22 is opened on the outer wall of the sleeve rod 21. Two insert rods 19 located in the limiting groove 22 are slidably installed inside the sleeve rod 21, and the outer ends of the insert rods 19 extend to the outside of the second filter frame 13. A spring 23 (304 stainless steel compression spring, preload 8N) is installed inside the sleeve rod 21, and the two ends of the spring 23 are fixedly connected to the adjacent sides of the two insert rods 19, respectively. Second insertion holes 20 are opened on both sides of the inner wall of the sealing frame 10 for insertion of the insert rods 19. During installation, press the two insert rods 19 inward to compress the spring 23 and insert the second filter frame 13 into the sealing frame 10. When the insert rods 19 reach the position of the second insertion hole 20, release the two insert rods 19. At this time, the spring 23 returns to its original shape and pushes the insert rods 19 into the second insertion hole 20, thereby fixing the second filter frame 13.

[0031] Rectangular holes 5 are made on both sides of the car 1, and a first filter frame 6 is embedded in one side of the rectangular hole 5. A mounting plate 7 is fixedly installed on one side of the first filter frame 6, and an exhaust fan 8 is installed on the mounting plate 7. The exhaust fan 8 can be an existing exhaust fan device, with its air inlet facing the inside of the car 1, for exhausting the air inside the car 1, and the rectangular holes 5 are located at the bottom of both sides of the car 1, which can increase the travel distance of the airflow.

[0032] This application can be used in the field of air purification, or in other fields applicable to this application.

[0033] Example 2

[0034] refer to Figures 1-6An improvement upon Embodiment 1: An elevator car air purification and deodorization structure integrating Internet of Things (IoT) technology, applied to the field of air purification, is described. Two guide strips 17 are welded and fixed to the bottom of the top frame 4, with an air outlet plate 18 inserted between the guide strips 17 and the top frame 4. Multiple air outlet holes are provided on the air outlet plate 18 to evenly discharge the air from the blowing system 3 into the car 1. Simultaneously, the air outlet plate 18 can conceal and protect the insert rod 19, preventing damage from external impacts. Furthermore, to enhance the secure installation of the air outlet plate 18, bolts are threaded onto the guide strips 17, with the top of the bolts abutting against the air outlet plate 18, thus firmly fixing the air outlet plate 18.

[0035] Finally, a camera 9 is fixed to the bottom of the top frame 4 with bolts. The camera 9 is connected to an external controller via wires. The camera 9 can be a high-definition camera from the prior art, used to detect the number of people in the car 1. Based on the number of people in the car 1, the activation of the two sets of blowing systems 3 and exhaust fans 8 can be selectively controlled to achieve energy-saving effects. For example, if the car 1 can carry a maximum of 10 people, when the number of people in the car 1 is less than 5, only one side of the blowing system 3 and exhaust fan 8 will be activated. When the number of people in the car 1 is greater than 5, both sets of blowing systems 3 and exhaust fans 8 will be activated simultaneously.

[0036] When in use, the blower system 3 is turned on, which can blow external air into the car 1. As the air blows into the car 1, it can be filtered in sequence through the filter plate 11, the HEPA filter 15, and the activated carbon plate 16, which can filter impurities and odors in the air and ensure that the air entering the car 1 is clean.

[0037] At the same time, the exhaust fan 8 is started to extract the air from the car 1, so that the air in the car 1 can circulate.

[0038] When it is necessary to clean or replace the filter plate 11, HEPA filter 15, and activated carbon plate 16, push the air outlet plate 18 to one side to disengage it from the two guide strips 17. Then, pull down the insertion rod 19 to turn it within the sleeve rod 21 so that the bottom end of the insertion rod 19 corresponds to the straight part of the limiting groove 22. Then, squeeze the two insertion rods 19 together to bring them closer together, so that one end of the insertion rod 19 disengages from the second insertion hole 20. At this time, the second filter frame 13 can be pulled down to disengage the filter plate 11, HEPA filter 15, and activated carbon plate 16 from the sealing frame 10. Then, pull the filter plate 11, HEPA filter 15, and activated carbon plate 16 out of the second filter frame 13 for cleaning and replacement.

[0039] However, as is well known to those skilled in the art, the working principles and wiring methods of the blower system 3, the exhaust fan 8 and the camera 9 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An air purification and deodorization structure for an elevator car integrating Internet of Things (IoT) technology, used inside an elevator car for purifying the air inside the car (1), characterized in that, Includes a top frame (4) set at the top of the car (1), the top wall of the top frame (4) is fixed with a top plate (2) by bolts, the top plate (2) is provided with two blowing systems (3), the bottom end of the top frame (4) is provided with a filter assembly corresponding to the blowing system (3), the filter assembly is also provided with a snap-fit ​​component, and the filter assembly is fixed in the top frame (4) by the snap-fit ​​component; The car (1) has rectangular holes (5) on both sides. A first filter frame (6) is embedded in one side of the rectangular hole (5). A mounting plate (7) is fixedly installed on one side of the first filter frame (6). An exhaust fan (8) is installed on the mounting plate (7). The air flow in the car (1) is realized by exhausting the exhaust fan (8) and blowing the air through the blowing system (3). The filter assembly is welded to the sealing frame (10) on the bottom wall of the top frame (4). A second filter frame (13) is inserted into the sealing frame (10). A limiting plate (12) for limiting the second filter frame (13) is fixedly installed on the top inner wall of the sealing frame (10) by welding. Three first insertion holes (14) are opened on one side of the second filter frame (13). A filter plate (11), a HEPA filter (15), and an activated carbon plate (16) for air filtration are respectively inserted into the three first insertion holes (14).

2. The elevator car air purification and deodorization structure integrating Internet of Things technology according to claim 1, characterized in that, The snap-fit ​​component includes a sleeve rod (21) fixedly installed on the inner wall of the bottom end of the second filter frame (13). A limiting groove (22) is provided on the outer wall of the sleeve rod (21). Two insert rods (19) located in the limiting groove (22) are slidably provided in the sleeve rod (21). The outer ends of the insert rods (19) extend to the outside of the second filter frame (13). A spring (23) is provided in the sleeve rod (21). The two ends of the spring (23) are fixedly connected to the two insert rods (19) on their respective adjacent sides. The inner walls on both sides of the sealing frame (10) are provided with second insertion holes (20) for insertion into the insert rods (19).

3. The elevator car air purification and deodorization structure integrating Internet of Things technology according to claim 2, characterized in that, The bottom of the top frame (4) is fixedly welded with two guide strips (17), and the two guide strips (17) are connected to the top frame (4) with the same air outlet plate (18) for hiding and protecting the plug rod (19).

4. The elevator car air purification and deodorization structure integrating Internet of Things technology according to claim 3, characterized in that, The limiting groove (22) is I-shaped and uses the grooves at both ends to limit the insertion rod (19).

5. The elevator car air purification and deodorization structure integrating Internet of Things technology according to any one of claims 1-4, characterized in that, A camera (9) is fixed to the bottom of the top frame (4) by bolts. The camera (9) is connected to an external controller by wires to detect the number of people in the car (1) and control the start and stop of the two sets of blowing systems (3) and exhaust fans (8) according to the number of people.