A fresh air purifier for an elevator car and an elevator car
By designing limiting and sound insulation mechanisms, the problem of inconvenient filter removal and installation in elevator car air purifiers has been solved, enabling quick filter replacement and noise reduction, thus improving purification efficiency and passenger comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUZHOU XINQU ELEVATOR TECH CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-10
AI Technical Summary
The filters in existing elevator car air purifiers are difficult to disassemble and install, making regular cleaning difficult and affecting the purification effect.
A limiting mechanism is designed, including a fixing block, a fixing rod, a limiting rod, a spring, and a lever. Through the cooperation of these components, the filter plate can be quickly disassembled and replaced. Combined with a sound insulation mechanism, noise is reduced to ensure the purification effect.
The filter plates can be quickly disassembled and cleaned, improving the practicality of the air purifier. The sound insulation mechanism reduces noise, enhancing passenger comfort and purification effect.
Smart Images

Figure CN224479791U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air purification technology, and in particular to a fresh air purifier for elevator cars and an elevator car. Background Technology
[0002] Chinese document CN212619007U discloses a fresh air purifier for elevator cars and an elevator car. The fresh air purifier includes a housing, a filter mounting bracket, a filter device, and a ventilator. By adding a filter device to the air purifier used in the elevator car, the fresh air in the elevator shaft is purified before being discharged into the car, ensuring the cleanliness of the discharged fresh air and making it safe to use. This solves the technical problem in the prior art that "if the fresh air in the elevator shaft is polluted or very turbid and dirty, the fresh air delivered by this ventilator will pose a great risk of poisoning to the human body and a significant safety hazard." By designing the filter mounting bracket as a first frame, a second frame, a first connecting plate, and a second connecting plate, the fresh air entering from the air inlet outside the car is divided into left and right paths, which enter the filter devices in each frame for purification, greatly improving the purification efficiency and air intake speed.
[0003] However, the filters in the aforementioned fresh air purifiers are inconvenient to disassemble and install, and the filtered air needs to be cleaned regularly, otherwise it will cause blockage and affect the purification effect. Therefore, we propose a fresh air purifier for elevator cars and an elevator car. Utility Model Content
[0004] The purpose of this utility model is to provide a fresh air purifier for elevator cars and an elevator car, which can solve the problem that some existing fresh air purifiers are inconvenient to replace.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fresh air purifier for elevator cars, comprising:
[0006] The filter box has a through slot at the top, and a filter plate is installed inside the filter box. The filter plate is attached to the inner wall of the filter box and the through slot and is flush with the top of the filter box.
[0007] The sound insulation mechanism is located on the front outer surface of the filter box and is used to silence the fresh air purifier.
[0008] The limiting mechanism is located at the top of the filter box. The limiting mechanism includes a fixed block, a fixed rod, and a limiting rod. Two sets of fixed blocks are fixedly installed on the top of the filter box. A set of fixed rods is fixedly installed on the outer surface of each of the two sets of fixed blocks. A set of limiting rods is movably sleeved on each of the two sets of fixed rods. The outer surface of each set of limiting rods is in contact with the top of the filter plate.
[0009] Preferably, the limiting mechanism further includes a spring, a lever, and a limiting sleeve. A set of springs is fitted on each of the two sets of fixed rods. One end of each set of springs is fixedly connected to the outer surface of the corresponding fixed block. The other end of each set of springs is fixedly connected to one end of the corresponding limiting rod. A set of levers is fixedly installed on the outer surface of each of the two sets of limiting rods. Two sets of limiting sleeves are fixedly installed on the top of the filter box. Both sets of limiting rods are inserted into the corresponding limiting sleeves.
[0010] Preferably, the sound insulation mechanism includes a rectangular sleeve and sound insulation cotton. The rectangular sleeve is fixedly installed on the outer surface of the front side of the filter box, and the sound insulation cotton is fixedly installed on the inner wall of the rectangular sleeve.
[0011] Preferably, an exhaust fan is fixedly installed on the front outer surface of the filter box. The exhaust fan is located inside the rectangular sleeve, and the input end of the exhaust fan is connected to the inside of the filter box.
[0012] Preferably, a diversion grid is fixedly installed on the front outer surface of the induced draft fan, and the output end of the induced draft fan communicates with the interior of the diversion grid.
[0013] Preferably, an air inlet pipe communicating with the interior of the filter box is fixedly installed on the rear outer surface of the filter box, and a handle is fixedly installed on the top of the filter plate.
[0014] An elevator car includes a fresh air purifier for an elevator car as described in any of the preceding claims.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] The new air purifier for elevator cars and the elevator car, through the cooperation of filter plates and limiting mechanisms, allow for the regular disassembly, cleaning or replacement of the filter plates during use. The operation is quick and solves the problem in some existing air purifiers where the filters are inconvenient to disassemble and install, and the filtered air needs to be cleaned regularly to avoid blockage and affect the purification effect. This improves the practicality of the new air purifier.
[0017] The elevator car uses a fresh air purifier and an elevator car. Through the sound insulation mechanism, the noise of the exhaust fan can be isolated. At the same time, under the action of the diversion grille, the air blown by the fresh air purifier can be evenly distributed to ensure the comfort of passengers in the car and ensure the effectiveness of the fresh air purifier. This is conducive to the promotion and use of the device. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0019] Figure 1 This is a frontal perspective view of the present invention;
[0020] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;
[0021] Figure 3 This is a front perspective view of the partial filter box and its upper related components of this utility model;
[0022] Figure 4 This is a schematic diagram of the sound insulation mechanism of this utility model.
[0023] Reference numerals in the attached drawings: 1. Filter box; 2. Filter plate; 3. Limiting mechanism; 31. Fixing block; 32. Fixing rod; 33. Limiting rod; 34. Spring; 35. Toggle lever; 36. Limiting sleeve; 4. Sound insulation mechanism; 41. Rectangular sleeve; 42. Sound insulation cotton; 5. Exhaust fan; 6. Diverter grille; 7. Air inlet pipe; 8. Handle. Detailed Implementation
[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0025] Please see Figure 1-4 This utility model provides a technical solution: a fresh air purifier for elevator cars, including a filter box 1, a sound insulation mechanism 4 and a limiting mechanism 3. The top of the filter box 1 is provided with a through groove, and a filter plate 2 is provided inside the filter box 1. The filter plate 2 is attached to the filter box 1 and the inner wall of the through groove and is flush with the top of the filter box 1. The sound insulation mechanism 4 is provided on the front outer surface of the filter box 1. The sound insulation mechanism 4 is used to silence the fresh air purifier. A diversion grille 6 is fixedly installed on the front outer surface of the blower 5. The output end of the blower 5 is connected to the interior of the diversion grille 6. An air inlet pipe 7 connected to the interior of the filter box 1 is fixedly installed on the rear outer surface of the filter box 1. A handle 8 is fixedly installed on the top of the filter plate 2.
[0026] The limiting mechanism 3 is located on the top of the filter box 1. The limiting mechanism 3 includes a fixing block 31, a fixing rod 32 and a limiting rod 33. Two sets of fixing blocks 31 are fixedly installed on the top of the filter box 1. A set of fixing rods 32 are fixedly installed on the outer surface of each of the two sets of fixing blocks 31. A set of limiting rods 33 is movably sleeved on each of the two sets of fixing rods 32. The outer surface of each set of limiting rods 33 is in contact with the top of the filter plate 2.
[0027] The limiting mechanism 3 also includes a spring 34, a lever 35, and a limiting sleeve 36. A set of springs 34 is fitted on each of the two sets of fixed rods 32. One end of each set of springs 34 is fixedly connected to the outer surface of the corresponding fixed block 31, and the other end of each set of springs 34 is fixedly connected to one end of the corresponding limiting rod 33. A set of levers 35 is fixedly installed on the outer surface of each set of limiting rods 33. Two sets of limiting sleeves 36 are fixedly installed on the top of the filter box 1. The two sets of limiting rods 33 are inserted into the corresponding limiting sleeves 36. Through the cooperation of the filter plate 2 and the limiting mechanism 3, the filter plate 2 can be disassembled, cleaned, or replaced periodically during use. The operation is quick and solves the problem that the filters in some existing fresh air purifiers are inconvenient to disassemble and install, and the filtered air needs to be cleaned regularly to avoid blockage and affect the purification effect. This improves the practicality of the fresh air purifier.
[0028] The sound insulation mechanism 4 includes a rectangular sleeve 41 and sound insulation cotton 42. The rectangular sleeve 41 is fixedly installed on the front outer surface of the filter box 1, and the sound insulation cotton 42 is fixedly installed on the inner wall of the rectangular sleeve 41. The exhaust fan 5 is fixedly installed on the front outer surface of the filter box 1. The exhaust fan 5 is located inside the rectangular sleeve 41, and the input end of the exhaust fan 5 is connected to the inside of the filter box 1. Through the sound insulation mechanism 4, the noise of the exhaust fan 5 during operation can be isolated. At the same time, under the action of the diversion grille 6, the air blown out by the fresh air purifier can be evenly dispersed to ensure the comfort of passengers in the car and ensure the effectiveness of the fresh air purifier. This is conducive to the promotion and use of the device.
[0029] An elevator car includes a fresh air purifier for an elevator car as described in any of the preceding claims.
[0030] Working principle: When the induced draft fan 5 is started, it draws outside air into the filter box 1 through the air inlet pipe 7. After being filtered by the filter plate 2, the air is dispersed into the car through the diversion grille 6. When it is necessary to disassemble, clean or replace the filter plate 2, move the two sets of levers 35 to move the two sets of limit rods 33. The two sets of limit rods 33 slide on each fixed rod 32 and compress each spring 34 until the two sets of limit rods 33 no longer limit the filter plate 2. Then the filter plate 2 can be lifted out by the handle 8 for cleaning or replacement.
[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An air purifier for elevator cars, characterized in that, include: The filter box (1) has a through groove on its top. The filter box (1) is equipped with a filter plate (2). The filter plate (2) is attached to the inner wall of the filter box (1) and the through groove and is flush with the top of the filter box (1). The sound insulation mechanism (4) is located on the front outer surface of the filter box (1). The sound insulation mechanism (4) is used to silence the fresh air purifier. The limiting mechanism (3) is located on the top of the filter box (1). The limiting mechanism (3) includes a fixing block (31), a fixing rod (32) and a limiting rod (33). Two sets of fixing blocks (31) are fixedly installed on the top of the filter box (1). A set of fixing rods (32) are fixedly installed on the outer surface of each of the two sets of fixing blocks (31). A set of limiting rods (33) is movably sleeved on each of the two sets of fixing rods (32). The outer surface of each set of limiting rods (33) is in contact with the top of the filter plate (2).
2. The fresh air purifier for elevator cars according to claim 1, characterized in that: The limiting mechanism (3) also includes a spring (34), a lever (35) and a limiting sleeve (36). A set of springs (34) is sleeved on each of the two sets of fixed rods (32). One end of each set of springs (34) is fixedly connected to the outer surface of the corresponding fixed block (31). The other end of each set of springs (34) is fixedly connected to one end of the corresponding limiting rod (33). A lever (35) is fixedly installed on the outer surface of each set of limiting rods (33). Two sets of limiting sleeves (36) are fixedly installed on the top of the filter box (1). Both sets of limiting rods (33) are inserted into the corresponding limiting sleeves (36).
3. The fresh air purifier for elevator cars according to claim 2, characterized in that: The sound insulation mechanism (4) includes a rectangular sleeve (41) and sound insulation cotton (42). The rectangular sleeve (41) is fixedly installed on the outer front surface of the filter box (1), and the sound insulation cotton (42) is fixedly installed on the inner wall of the rectangular sleeve (41).
4. The fresh air purifier for elevator cars according to claim 3, characterized in that: A blower (5) is fixedly installed on the front outer surface of the filter box (1). The blower (5) is located inside the rectangular sleeve (41), and the input end of the blower (5) is connected to the inside of the filter box (1).
5. The fresh air purifier for elevator cars according to claim 4, characterized in that: A diversion grid (6) is fixedly installed on the front outer surface of the induced draft fan (5), and the output end of the induced draft fan (5) is connected to the interior of the diversion grid (6).
6. The fresh air purifier for elevator cars according to claim 5, characterized in that: An air inlet pipe (7) communicating with the interior of the filter box (1) is fixedly installed on the rear outer surface of the filter box (1), and a handle (8) is fixedly installed on the top of the filter plate (2).
7. An elevator car, characterized in that: Including a fresh air purifier for elevator cars according to any one of claims 1-6.