Ventilation air conditioner pipeline with purification filter screen structure
By introducing a removable purification filter structure into the ventilation and air conditioning ducts, the problem of equipment performance degradation caused by prolonged lack of filter cleaning is solved, enabling rapid filter replacement and stable air quality assurance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-03
AI Technical Summary
If the air purifier filter is not disassembled and cleaned for a long time, the equipment performance will decline, the air circulation will be poor, the air quality will be reduced, respiratory health will be affected, and energy consumption will increase.
A ventilation and air conditioning duct with a purification filter structure was designed. The filter can be easily disassembled and installed through a structure such as handle bolts, fixing plates and fixing rods. The rotating shaft and rubber block are used to ensure the stable fixing and easy replacement of the filter.
It improves the speed of filter installation and removal, prevents filter clogging, ensures smooth air circulation, reduces indoor pollution, lowers energy consumption, and protects respiratory health.
Smart Images

Figure CN224080345U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ventilation duct improvement technology, specifically a ventilation and air conditioning duct with a purification filter structure. Background Technology
[0002] As people pay more attention to indoor air health, their requirements for the purification capabilities of products are also increasing. The design and application of purification structures are becoming more diversified. Air conditioners are generally used to regulate the ambient temperature. In order to meet people's high requirements for air quality, purification screens are installed at the air outlet of the air conditioner to filter and purify the air coming out of the air conditioner, thereby improving the quality of the air coming out.
[0003] However, if the air purifier filter is not disassembled and cleaned for a long time during use, the performance of the device will be affected. A clogged filter will lead to poor air circulation and a decline in air quality, resulting in indoor pollution, affecting respiratory health, increasing the energy consumption of the air purifier, and even causing motor overload. Utility Model Content
[0004] The purpose of this utility model is to provide a ventilation and air conditioning duct with a purification filter structure to solve the problems mentioned in the background art, such as the equipment performance being affected by the long-term failure to disassemble and clean the purification filter, the filter blockage leading to poor air circulation and reduced air quality, thereby causing indoor pollution, affecting respiratory health, and bringing serious safety hazards.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a ventilation and air conditioning duct with a purification filter structure, comprising a ventilation duct, a first protective shell sleeved inside the ventilation duct, a fixing plate penetrating through the surface of the ventilation duct, a fixing rod penetrating through the surface of the fixing plate, a handle bolt rotatably connected to the surface of the first protective shell, a second protective shell sleeved inside the ventilation duct, a filter screen sleeved inside the first protective shell, a connecting block fixedly connected to the surface of the second protective shell, a rotating shaft rotatably connected to the surface of the connecting block, a fixing plate fixedly connected to the surface of the rotating shaft, a fixing block fixedly connected to the surface of the first protective shell, and a rubber block fixedly connected inside the fixing plate.
[0006] Preferably, the surface of the ventilation duct has a groove, and the surface of the groove has a through hole, through which the fixing plate is connected to the ventilation duct.
[0007] Preferably, the fixing rod is in the shape of a round rod, and the surface of the fixing plate has a recessed hole, through which the fixing rod is connected to the fixing plate.
[0008] Preferably, the surface of the first protective shell is provided with a screw hole, and the handle bolt is threadedly connected to the first protective shell through the screw hole.
[0009] Preferably, the connecting blocks are arranged in two opposing groups on both sides of the second protective shell, and the surface of the connecting blocks is provided with a second recessed hole, through which the rotating shaft is rotatably connected to the connecting blocks.
[0010] Preferably, the fixing block is square-shaped, and the surface of the fixing plate has a second through hole, through which the fixing block is connected to the fixing plate.
[0011] Preferably, the rubber block is arc-shaped, and the rubber block abuts against the fixed block through a fixed plate and a rotating shaft.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. A connecting block is fixedly connected to the surface of the second protective shell. A rotating shaft is rotatably connected to the connecting block through the second recess of the connecting block. A fixing plate is fixedly connected to the surface of the rotating shaft. The fixing plate is connected to the fixing block through the second through hole. The rotating shaft rotates through the second recess of the connecting block to make the fixing block fit the rubber block, so that the second protective shell and the first protective shell wrap around the filter screen, thereby achieving further protection for the filter screen. When the filter screen needs to be replaced or cleaned after long-term use, the first and second protective shells can be disassembled by rotating the fixing plate driven by the rotating shaft, thereby improving the installation and disassembly speed.
[0014] 2. The fixing plate passes through the ventilation duct through the through hole one, and the fixing rod passes through the fixing plate through the through recess one, thereby fixing the fixing plate at the position of the through hole one in the ventilation duct. The handle bolt is rotatably connected through the screw hole of the first protective shell, so that when the first protective shell and the second protective shell and the filter screen need to be disassembled, the handle bolt can be pulled out. The handle bolt and the first protective shell, which are connected to the fixing plate and the ventilation duct by the handle bolt, restrict the position of the first protective shell in the ventilation duct. Attached Figure Description
[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;
[0016] Figure 2 This is a three-dimensional rear view of the structure of this utility model;
[0017] Figure 3 This utility model Figure 2 Exploded three-dimensional diagram of the connection structure between the fixing plate and the fixing rod;
[0018] Figure 4 This utility model Figure 1 A three-dimensional schematic diagram of the first protective shell connection structure;
[0019] Figure 5 This utility model Figure 4 An exploded three-dimensional schematic diagram of the connection structure between the first and second protective shells in the image.
[0020] Figure 6 This utility model Figure 4 A magnified structural diagram of point A in the middle.
[0021] In the diagram: 1. Ventilation duct; 2. First protective shell; 3. Fixing plate; 4. Fixing rod; 5. Handle bolt; 6. Second protective shell; 7. Filter screen; 8. Connecting block; 9. Rotating shaft; 10. Fixing plate; 11. Fixing block; 12. Rubber block. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-6 One embodiment provided by this utility model:
[0024] A ventilation and air conditioning duct with a purification filter structure includes a ventilation duct 1, a first protective shell 2 sleeved inside the ventilation duct 1, a fixing plate 3 penetrating the surface of the ventilation duct 1, a fixing rod 4 penetrating the surface of the fixing plate 3, a handle bolt 5 rotatably connected to the surface of the first protective shell 2, a second protective shell 6 sleeved inside the ventilation duct 1, a filter screen 7 sleeved inside the first protective shell 2, a connecting block 8 fixedly connected to the surface of the second protective shell 6, a rotating shaft 9 rotatably connected to the surface of the connecting block 8, a fixing plate 10 fixedly connected to the surface of the rotating shaft 9, a fixing block 11 fixedly connected to the surface of the first protective shell 2, a rubber block 12 fixedly connected inside the fixing plate 10, and a fixing plate 3 penetratingly connected to the ventilation duct 1 through a through hole. Under the action of the fixing plate 3, the handle bolt 5 is connected to the first protective shell 2 through a screw hole. The ventilation duct 1 uses a handle bolt 5 to restrict the position of the first protective shell 2, preventing the first protective shell 2, the second protective shell 6, and the filter screen 7 from falling down inside the ventilation duct 1 and affecting air purification. The fixing rod 4 is round, and the surface of the fixing plate 3 has a recessed hole. The fixing rod 4 is connected to the fixing plate 3 through the recessed hole. Under the action of the fixing rod 4, the fixing plate 3 is prevented from slipping out of the through hole of the ventilation duct 1, which would prevent the first protective shell 2, the second protective shell 6, and the filter screen 7 from being fixed in the ventilation duct 1. The surface of the first protective shell 2 has a screw hole, and the handle bolt 5 is threadedly connected to the first protective shell 2 through the screw hole. Under the action of the handle bolt 5, when the filter screen 7 needs to be replaced and cleaned, it can be replaced and cleaned by pulling out the fixing plate 3 and the fixing rod 4 and then pulling out the handle bolt 5, thereby improving the convenience of installation and disassembly.
[0025] Furthermore, the surface of the ventilation duct 1 is provided with a groove, and the surface of the groove is provided with a through hole. The fixing plate 3 is connected to the ventilation duct 1 through the through hole. Under the action of the fixing plate 3, the handle bolt 5 is connected to the first protective shell 2 through the screw hole of the first protective shell 2. The fixing plate 3 and the ventilation duct 1 can restrict the position of the first protective shell 2 through the handle bolt 5, so as to prevent the first protective shell 2, the second protective shell 6, and the filter screen 7 from falling down in the ventilation duct 1, thereby affecting the purification of air.
[0026] Furthermore, the fixing rod 4 is in the shape of a round rod, and a recessed hole is provided on the surface of the fixing plate 3. The fixing rod 4 is connected to the fixing plate 3 through the recessed hole. Under the action of the fixing rod 4, the fixing plate 3 is prevented from slipping out of the through hole of the ventilation duct 1, thereby making it impossible to fix the position of the first protective shell 2, the second protective shell 6, and the filter screen 7 inside the ventilation duct 1.
[0027] Furthermore, the surface of the first protective shell 2 is provided with screw holes, and the handle bolt 5 is threadedly connected to the first protective shell 2 through the screw holes. Under the action of the handle bolt 5, when the filter screen 7 needs to be replaced and cleaned, it can be replaced and cleaned by pulling out the fixing plate 3 and fixing rod 4 and then pulling out the handle bolt 5, thereby improving the convenience of installation and disassembly.
[0028] Furthermore, the connecting blocks 8 are arranged in two opposing groups on both sides of the second protective shell 6. The surface of the connecting block 8 is provided with a second recess. The rotating shaft 9 is rotatably connected to the connecting block 8 through the second recess. Under the action of the rotating shaft 9, the fixing piece 10 rotates and engages with the fixing block 11, so that the second protective shell 6 and the first protective shell 2 wrap around the filter screen 7, thereby protecting the filter screen 7.
[0029] Furthermore, the fixing block 11 is square in shape, and the surface of the fixing plate 10 is provided with a through hole 2. The fixing block 11 is connected to the fixing plate 10 through the through hole 2. Under the action of the fixing plate 10, the second protective shell 6 and the first protective shell 2 are brought into contact.
[0030] Furthermore, the rubber block 12 is arc-shaped. The rubber block 12 abuts against the fixed block 11 through the fixed plate 10 and the rotating shaft 9. Under the action of the rubber block 12, when the fixed plate 10 is sleeved on the fixed block 11, the rubber block 12 abuts against the fixed block 11 through elasticity, preventing the fixed plate 10 from touching the fixed block 11 when it rotates, thus preventing it from being unable to be disassembled and installed.
[0031] Working principle: The ventilation duct 1 is fitted with a first protective shell 2, a second protective shell 6, and a filter screen 7. A fixing plate 3 is connected to the ventilation duct 1 through a through hole. A fixing rod 4 passes through the surface of the fixing plate 3. Under the action of the fixing rod 4, the fixing plate 3 is prevented from slipping out of the through hole of the ventilation duct 1, thus preventing the first protective shell 2, the second protective shell 6, and the filter screen 7 from being fixed in place inside the ventilation duct 1. The ventilation duct 1 is connected to a handle bolt 5 by threads. Under the action of the handle bolt 5, the first protective shell 2, the second protective shell 6, and the filter screen 7 inside the ventilation duct 1 can be pulled out, facilitating disassembly and installation. The second protective shell 6 is fixedly connected to the surface of the connecting block 8. The connecting block 8 is rotatably connected to the rotating shaft 9. Under the action of the rotating shaft 9, the fixing piece 10 rotates and engages with the fixing block 11, so that the second protective shell 6 and the first protective shell 2 wrap around the filter screen 7, thereby protecting the filter screen 7. The rubber block 12 abuts against the fixing block 11 through the fixing piece 10 and the rotating shaft 9. Under the action of the rubber block 12, when the fixing piece 10 is engaged with the fixing block 11, the rubber block 12 abuts against the fixing block 11 through elasticity, preventing the fixing piece 10 from touching the fixing block 11 when rotating, which would make it impossible to disassemble and install.
[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A ventilating and air conditioning duct with a purification screen structure, comprising a ventilation duct (1), characterized in that: The inside of the ventilation pipeline (1) is sleeved with a first protective shell (2), the surface of the ventilation pipeline (1) is penetrated through with a fixed plate (3), the surface of the fixed plate (3) is penetrated through with a fixed rod (4), the surface of the first protective shell (2) is rotatably connected with a handle bolt (5), the inside of the ventilation pipeline (1) is sleeved with a second protective shell (6), the inside of the first protective shell (2) is sleeved with a filter screen (7), the surface of the second protective shell (6) is fixedly connected with a connecting block (8), the surface of the connecting block (8) is rotatably connected with a rotating shaft (9), the surface of the rotating shaft (9) is fixedly connected with a fixed sheet (10), the surface of the first protective shell (2) is fixedly connected with a fixed block (11), and the inside of the fixed sheet (10) is fixedly connected with a rubber block (12).
2. The ventilating and air conditioning duct with the purification filter screen structure according to claim 1, characterized in that: The surface of the ventilation pipeline (1) is provided with a groove, and the groove is provided with a through hole.
3. The ventilating and air conditioning duct with the purification filter screen structure according to claim 1, characterized in that: The fixed plate (3) is connected with the ventilation pipeline (1) through the through hole.
4. The ventilating and air conditioning duct with the purification filter screen structure according to claim 1, characterized in that: The fixed rod (4) is in the shape of a round rod, and the surface of the fixed plate (3) is provided with a recess hole one.
5. The ventilating and air conditioning duct with the purification filter screen structure according to claim 1, characterized in that: The surface of the first protective shell (2) is provided with a screw hole, and the handle bolt (5) is threadedly connected with the first protective shell (2) through the screw hole.
6. The ventilating and air conditioning duct with the purification filter screen structure according to claim 1, characterized in that: The connecting block (8) is in the shape of two groups of opposite distribution on the two sides of the second protective shell (6), and the surface of the connecting block (8) is provided with a recess hole two.
7. The ventilating and air conditioning duct with the purification screen structure according to claim 1, characterized in that: The fixed block (11) is in the shape of a square block, and the surface of the fixed sheet (10) is provided with a through hole two. The rubber block (12) is in the shape of a circular arc, and the rubber block (12) is in contact with the fixed block (11) through the fixed sheet (10) and the rotating shaft (9).