An easy-to-install wall-mounted air purifier
The quick-installation component design simplifies the installation process of wall-mounted air purifiers, solving the problem of complex traditional installations and enabling convenient and efficient installation and disassembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG XIANGHAI PURIFICATION ENG CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-03
AI Technical Summary
The installation process of existing wall-mounted air purifiers is complicated, requiring multiple steps including drilling, installing expansion plugs and screws, which makes installation inconvenient.
It adopts quick-installation components, including a limiting back plate, a rectangular frame, and a type 7 elastic hook. The ventilation pipe is initially fixed by the horn rubber sleeve and external thread. The design of the rectangular frame and the slot simplifies the installation process of the main unit.
It enables convenient installation of unidirectional flow fresh air units, eliminating the drilling step, improving installation efficiency, and supports easy disassembly, simplifying the operation process.
Smart Images

Figure CN224454782U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wall-mounted fresh air system technology, specifically a wall-mounted air purification device that is easy to install. Background Technology
[0002] There are many types of wall-mounted air purification equipment, including wall-mounted air purifiers, wall-mounted fresh air systems, wall-mounted dehumidifiers, air sterilizers, and fume purification equipment.
[0003] Among them, the wall-mounted fresh air system introduces fresh outdoor air filtered by filters (usually pre-filter + medium-high efficiency or HEPA) without opening windows, while expelling stale indoor air.
[0004] There is a wall-mounted unidirectional airflow fresh air system on the market. During installation, holes are drilled in the wall, and then the ventilation duct extends outdoors through the holes. The gap between the ventilation duct and the holes is filled and sealed with foam. Then, the filter is installed inside the ventilation duct. The suction tube of the main unit is inserted into the ventilation duct, and the main unit is made to fit against the wall. Finally, mounting holes are drilled in the wall for the main unit to be installed and fixed, and expansion plugs and screws are used for fixing.
[0005] The above installation process involves multiple steps, including measurement, positioning, drilling, installing expansion plugs, and installing screws, when drilling the mounting holes of the main unit. The installation process needs to be further simplified. Therefore, a wall-mounted air purification device that is easy to install is provided. Utility Model Content
[0006] The purpose of this utility model is to provide a wall-mounted air purification device that is easy to install, in order to solve the problems mentioned above.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a wall-mounted air purification device that is easy to install, including a ventilation component and a unidirectional flow fresh air unit. The ventilation component includes a ventilation pipe, a horn rubber sleeve, and an external thread. The horn rubber sleeve is fixed to the outer side of one end of the air inlet of the ventilation pipe, and the external thread is integrally formed on the outer side of one end of the air outlet of the ventilation pipe. The ventilation pipe is connected to a quick-installation component through the external thread. The quick-installation component is used to facilitate the installation of the unidirectional flow fresh air unit.
[0008] The quick-installation component includes a limiting back plate, a rectangular frame, and a type 7 elastic hook; the unidirectional flow fresh air unit includes a main unit and a card slot.
[0009] The limiting back plate is threaded to the external thread. When the ventilation pipe is inserted into and passes through the wall hole, the limiting back plate and the horn rubber sleeve are respectively attached to the inner and outer surfaces of the wall to achieve the initial fixation of the ventilation pipe position.
[0010] The rectangular frame is fixed to the end of the limiting back plate away from the ventilation pipe. The upper and lower ends of the rectangular frame are formed with notches and grooves. The type 7 elastic hooks are distributed in the middle of the notches and grooves and are fixedly connected to the end face of the limiting back plate.
[0011] The card slot is symmetrically formed at the top and bottom of the main unit shell and close to the rear end of the main unit. When the main unit is inserted into the inner side of the rectangular frame, it is engaged with the inner side of the card slot by the type 7 elastic hook, which is used to realize the installation and fixation of the main unit.
[0012] As a further improvement of this utility model: the outer diameter of the ventilation pipe is smaller than the inner diameter of the wall hole, and the limiting back plate has multiple filling ports arranged in a ring around the ventilation pipe, and the filling ports are connected to the wall hole.
[0013] As a further embodiment of this utility model: a first ring seat is fixed at one end of the air outlet of the ventilation pipe, and a second ring seat is fixed in the middle of the inner side of the ventilation pipe. A first sealing element is installed between the first ring seat and the second ring seat, and a filter screen is installed on the inner side of the first sealing element. One end of the filter screen is fitted with the second ring seat, and the inner ring diameter of the second ring seat is larger than the outer diameter of the filter screen.
[0014] As a further improvement of this utility model, the unidirectional flow fresh air unit also includes a suction pipe and a second sealing element;
[0015] The suction tube is fixed to the rear end of the main unit housing and communicates with the inner cavity of the main unit; the second sealing element is fixed to the rear end of the main unit housing and distributed on the outside of the suction tube.
[0016] The inner diameter of the suction tube matches the outer diameter of the ventilation tube. When the suction tube is inserted into the ventilation tube, the second sealing element is sleeved on the outside of the part of the ventilation tube that protrudes to the front end of the limiting back plate to achieve sealing protection.
[0017] As a further improvement of this utility model: the inner diameter of the first sealing element is slightly smaller than the inner diameter of the first ring seat, and the outer diameter of the suction tube and the filter screen matches the inner diameter of the first ring seat.
[0018] As a further improvement of this utility model: multiple card slots are evenly arranged in the horizontal direction, and the outer wall dimension of the rear end of the main unit housing matches the inner wall dimension of the rectangular frame.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] By setting up quick-installation components, the one-way fresh air unit can be installed conveniently. Compared with the traditional installation operation, it eliminates the step of drilling installation holes in the wall for the one-way fresh air unit, making the installation more convenient and efficient. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a schematic diagram showing the disassembled unidirectional flow fresh air unit and quick-installation components of this utility model;
[0023] Figure 3 This is another perspective view of the unidirectional flow fresh air unit and quick-installation components of this utility model disassembled;
[0024] Figure 4 This is an exploded sectional view of the quick-installation component and the ventilation component of this utility model.
[0025] In the diagram: 1. Ventilation assembly; 101. Ventilation duct; 102. Horn rubber sleeve; 103. External thread; 104. First ring seat; 105. Second ring seat; 106. First seal; 2. Quick-release assembly; 201. Limiting back plate; 202. Rectangular frame; 203. Type 7 elastic hook; 204. Filling port; 3. Unidirectional flow fresh air unit; 301. Main unit; 302. Suction pipe; 303. Second seal; 304. Slot; 4. Filter screen. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figures 1-4 In this embodiment of the utility model, a wall-mounted air purification device that is easy to install includes a ventilation component 1 and a unidirectional flow fresh air unit 3. The ventilation component 1 includes a ventilation pipe 101, a horn rubber sleeve 102, and an external thread 103. The horn rubber sleeve 102 is fixed to the outside of one end of the air inlet of the ventilation pipe 101, and the external thread 103 is integrally formed on the outside of one end of the air outlet of the ventilation pipe 101. The ventilation pipe 101 is threadedly connected to a quick-installation component 2 through the external thread 103. The quick-installation component 2 is used to realize the convenient installation of the unidirectional flow fresh air unit 3.
[0028] The quick-installation component 2 includes a limiting back plate 201, a rectangular frame 202, and a type 7 elastic hook 203; the unidirectional flow fresh air unit 3 includes a main unit 301 and a slot 304.
[0029] The limiting back plate 201 is threaded to the external thread 103. When the ventilation pipe 101 is inserted into and passes through the wall hole, the limiting back plate 201 and the horn rubber sleeve 102 are respectively attached to the inner and outer surfaces of the wall to achieve the initial fixation of the position of the ventilation pipe 101.
[0030] A rectangular frame 202 is fixed to the end of the limiting back plate 201 away from the ventilation pipe 101. The upper and lower ends of the rectangular frame 202 are formed with notches and grooves. Type 7 elastic hooks 203 are distributed in the middle of the notches and grooves and are fixedly connected to the end face of the limiting back plate 201.
[0031] The card slot 304 is symmetrically formed with the upper and lower ends of the main body 301 shell and close to the rear end of the main body 301. When the main body 301 is inserted into the inner side of the rectangular frame 202, it is engaged with the inner side of the card slot 304 by the hook part of the type 7 elastic hook 203, which is used to realize the installation and fixation of the main body 301.
[0032] The unidirectional flow fresh air unit 3 also includes a suction pipe 302 and a second sealing element 303;
[0033] The suction tube 302 is fixed to the rear end of the housing of the main unit 301 and communicates with the inner cavity of the main unit 301. The second sealing member 303 is fixed to the rear end of the housing of the main unit 301 and distributed on the outside of the suction tube 302.
[0034] The inner diameter of the suction tube 302 matches the outer diameter of the ventilation tube 101. When the suction tube 302 is inserted into the ventilation tube 101, the second sealing element 303 is sleeved on the outside of the part of the ventilation tube 101 that protrudes to the front end of the limiting back plate 201 to achieve sealing protection.
[0035] Multiple card slots 304 are evenly arranged in the horizontal direction, and the outer wall dimension of the rear end of the main unit 301 shell matches the inner wall dimension of the rectangular frame 202.
[0036] The outer diameter of the ventilation duct 101 is smaller than the inner diameter of the wall hole. The limiting back plate 201 has multiple filling ports 204 arranged in a ring around the ventilation duct 101, and the filling ports 204 are connected to the wall hole.
[0037] In this embodiment, the installation steps for this unidirectional flow fresh air unit 3 are as follows:
[0038] First, connect the limiting back plate 201 to the through pipe 101 by thread (at this time, the limiting back plate 201 is not fully tightened). Then, align the air inlet of the ventilation pipe 101 with the pre-drilled hole on the wall and insert it. The horn rubber sleeve 102 will be squeezed and contracted during this process. When the horn rubber sleeve 102 completely passes through the hole to the outside, it will return to its original position due to its own elasticity. Then, pull the ventilation pipe 101 towards the inside so that the horn opening of the horn rubber sleeve 102 fits tightly against the outer surface of the wall. At the same time, twist the limiting back plate 201 so that the limiting back plate 201 fits against the inner surface of the wall. During this process, the limiting back plate 201 and the through pipe 101 can be adjusted at a certain angle so that the two 7-type elastic hooks 203 on the limiting back plate 201 are vertically distributed.
[0039] Then, foam is used to fill the gap between the ventilation pipe 101 and the hole through the filling hole 204 to fix and reinforce the ventilation pipe 101.
[0040] Once the foaming agent has completely solidified, the unidirectional fresh air unit 3 can be installed. Simply insert the suction pipe 302 into the ventilation pipe 101. As the suction pipe 302 is inserted deeper, the second seal 303 engages with the protruding part of the ventilation pipe 101. Simultaneously, the rear end of the main unit 301 housing is inserted into the rectangular frame 202 and contacts the hook of the type 7 elastic hook 203. The hook of the type 7 elastic hook 203 deforms under force. When the hook of the type 7 elastic hook 203 aligns with the slot 304, the hook of the type 7 elastic hook 203 will reset and engage inside the slot 304 under its own elastic force, thus achieving unidirectional locking of the main unit 301. Finally, the second seal 303 fits tightly against the limiting back plate 201, completing the installation and fixing of the unidirectional fresh air unit 3. (It should be noted that the power connection cable of the unidirectional fresh air unit 3 is located outside the rectangular frame 202 and does not interfere with the rectangular frame 202.)
[0041] The unidirectional fresh air unit 3 can be easily installed by combining the above-mentioned parts. Compared with the traditional installation operation, it eliminates the step of drilling installation holes in the wall for the unidirectional fresh air unit 3, making the installation more convenient and efficient. At the same time, when it is necessary to disassemble the unidirectional fresh air unit 3, the locking can be released by manually moving the type 7 elastic hook 203, which can be easily disassembled. The type 7 elastic hook 203 has good reset elasticity and can maintain stable use for a long time. (It should also be noted that the unidirectional fresh air unit 3 is a common through-wall unidirectional flow fresh air unit on the market, and its operating principle is exactly the same. Therefore, the operating principle will not be described in detail here.)
[0042] Please refer to this carefully. Figures 2-4 A first ring seat 104 is fixed at one end of the air outlet of the ventilation pipe 101, and a second ring seat 105 is fixed in the middle of the inner side of the ventilation pipe 101. A first sealing element 106 is installed between the first ring seat 104 and the second ring seat 105, and a filter screen 4 is installed on the inner side of the first sealing element 106. One end of the filter screen 4 is in contact with the second ring seat 105, and the inner ring diameter of the second ring seat 105 is larger than the outer diameter of the filter screen 4.
[0043] The inner diameter of the first seal 106 is slightly smaller than the inner diameter of the first ring seat 104, and the outer diameters of the suction tube 302 and the filter screen 4 are matched with the inner diameter of the first ring seat 104.
[0044] In this embodiment: Before installing the unidirectional flow fresh air unit 3, the filter screen 4 is first installed inside the ventilation duct 101. At this time, the filter screen 4 contacts the first sealing member 106 and squeezes the first sealing member 106 to deform. Finally, the filter screen 4 fits into the second ring seat 105.
[0045] When the suction tube 302 is inserted into the ventilation tube 101, it will also squeeze the first seal 106. Finally, the suction tube 302 and the other end of the filter screen 4 are attached, thus completing the assembly. The first seal 106 can be tightly attached to the outside of the suction tube 302 and the filter screen 4 to achieve a good sealing effect.
[0046] 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. A wall-mounted air purification device for easy installation, comprising a ventilation assembly (1), a one-way flow fresh air fan (3), characterized in that, The ventilation assembly (1) includes a ventilation pipe (101), a horn rubber sleeve (102), and an external thread (103). The horn rubber sleeve (102) is fixed to the outside of the air inlet end of the ventilation pipe (101). The external thread (103) is integrally formed on the outside of the air outlet end of the ventilation pipe (101). The ventilation pipe (101) is threadedly connected to a quick-installation assembly (2) through the external thread (103). The quick-installation assembly (2) is used to facilitate the installation of the unidirectional flow fresh air unit (3). The quick-installation component (2) includes a limiting back plate (201), a rectangular frame (202), and a type 7 elastic hook (203); the unidirectional flow fresh air unit (3) includes a main unit (301) and a card slot (304). The limiting back plate (201) is threaded to the external thread (103). When the ventilation pipe (101) is inserted into and passes through the wall hole, the limiting back plate (201) and the horn rubber sleeve (102) are respectively attached to the inner and outer surfaces of the wall to achieve the initial fixation of the position of the ventilation pipe (101). The rectangular frame (202) is fixed to the end of the limiting back plate (201) away from the ventilation pipe (101). The rectangular frame (202) has notches formed in the middle of the upper and lower ends. The type 7 elastic hooks (203) are distributed in the middle of the notches and are fixedly connected to the end face of the limiting back plate (201). The slot (304) is symmetrically formed with the upper and lower ends of the main body (301) shell and close to the rear end of the main body (301). When the main body (301) is inserted into the inner side of the rectangular frame (202), it is engaged with the inner side of the slot (304) by the hook part of the type 7 elastic hook (203) to realize the installation and fixation of the main body (301).
2. The wall-mounted air purification device of claim 1, wherein, The outer diameter of the ventilation pipe (101) is smaller than the inner diameter of the wall hole. The limiting back plate (201) has multiple filling ports (204) arranged in a ring around the ventilation pipe (101). The filling ports (204) are connected to the wall hole.
3. The wall-mounted air purification device of claim 1, wherein, A first ring seat (104) is fixed at one end of the air outlet of the ventilation pipe (101), and a second ring seat (105) is fixed in the middle of the inner side of the ventilation pipe (101). A first sealing element (106) is installed between the first ring seat (104) and the second ring seat (105), and a filter screen (4) is installed on the inner side of the first sealing element (106). One end of the filter screen (4) is attached to the second ring seat (105), and the inner ring diameter of the second ring seat (105) is larger than the outer diameter of the filter screen (4).
4. The wall-mounted air purification device of claim 3, wherein, The unidirectional flow fresh air unit (3) also includes a suction pipe (302) and a second sealing element (303); The suction tube (302) is fixed to the rear end of the main unit (301) housing and communicates with the inner cavity of the main unit (301); the second sealing member (303) is fixed to the rear end of the main unit (301) housing and distributed on the outside of the suction tube (302); The inner diameter of the suction tube (302) matches the outer diameter of the ventilation tube (101). When the suction tube (302) is inserted into the ventilation tube (101), the second sealing element (303) is sleeved on the outside of the ventilation tube (101) protruding to the front end of the limiting back plate (201) to achieve sealing protection.
5. The wall-mounted air purification device of claim 4, wherein, The inner diameter of the first seal (106) is slightly smaller than the inner diameter of the first ring seat (104), and the outer diameters of the suction tube (302) and the filter screen (4) are matched with the inner diameter of the first ring seat (104).
6. The wall-mounted air purification device of claim 1, wherein, The card slots (304) are evenly arranged in multiple horizontal directions, and the outer wall size of the rear end of the main unit (301) shell matches the inner wall size of the rectangular frame (202).