A flat plate type air conditioner filter
By designing the pre-filter assembly and the pull assembly, the problems of easy damage to the filter element and difficulty in disassembly and assembly were solved, realizing convenient disassembly and assembly of the pre-filter and stable installation of the filter element, thus improving the performance of the air conditioning filter.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN TONGCHI AUTO PARTS MFG CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-06-26
AI Technical Summary
Existing air conditioner filters have filter elements that come into direct contact with dust, making them easily damaged and difficult to disassemble and assemble.
The design incorporates a pre-filter assembly and a pull assembly. The pre-filter screen can be easily disassembled and assembled using countersunk bolts and a spring structure, while the filter element is stably installed using a rotating clamping mechanism and a pull block structure.
It enables convenient disassembly and assembly of the pre-filter, reduces the workload of the filter element, ensures stable installation of the filter element, and improves the efficiency of the air conditioning filter.
Smart Images

Figure CN224404655U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of air conditioner filter technology, and specifically relates to a flat-plate air conditioner filter. Background Technology
[0002] An air conditioning filter is a device used to filter dust, particulate matter, and other pollutants from the air. It is mainly installed at the air inlet of the air conditioner and can intercept particles in the air entering the air conditioning system, ensuring air cleanliness, thereby improving indoor air quality and protecting people's health.
[0003] Chinese patent application number 202220359821.4 discloses a flat-plate filter for use in central air conditioning ventilation ducts, including a filter element and a mounting frame. The filter element is disposed inside the mounting frame, and a rotating clamp is inserted into the upper end of the mounting frame. A support spring is disposed on the outside of the mounting frame, and an outer frame plate is disposed on the outside of the support spring. Rubber sealing layers are disposed at the front and rear ends of the support spring. The flat-plate filter is also disposed on the outside of the support spring, and an outer frame plate is disposed on the outside of the support spring. Rubber sealing layers are disposed at the front and rear ends of the support spring. To a certain extent, the outer frame size of the flat-plate filter can be adjusted according to actual usage requirements. When installing a central air conditioning ventilation duct, the outer frame plate can be squeezed, and then the outer frame plate will squeeze the support spring, thereby squeezing and adjusting the outer frame size of the flat-plate filter, so that the flat-plate filter can adapt to central air conditioning ventilation ducts of different sizes.
[0004] In the aforementioned patent, the filter element is directly inserted into the mounting frame, allowing dust and other impurities to come into direct contact with the filter element, increasing its workload and making it prone to damage. In addition, the filter element is pressed using a rotating clamp, but it is difficult for operators to pull the rotating clamp to install or remove the filter element. Utility Model Content
[0005] To address the problems mentioned in the background section, this invention provides a flat-plate air conditioning filter that features pre-filtration and easy rotation.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a flat-plate air conditioner filter, comprising an installation frame, with reinforcing frames fixedly connected to both sides of the installation frame, a filter element inserted inside the installation frame, a rotating pressing mechanism provided at both ends of the installation frame and above the filter element, a primary filter assembly provided inside the reinforcing frame, and a pulling assembly provided on the side wall of the rotating pressing mechanism.
[0007] Preferably, the primary filter assembly includes a primary filter screen, an outer frame, a support frame, and a clamping member. The support frame is fixedly connected to the inner wall of the reinforcing frame. The outer frame is provided inside the reinforcing frame and on one side of the support frame. The clamping member is provided inside the reinforcing frame and on the side of the outer frame away from the support frame. The primary filter screen is fixedly connected to the inner wall of the outer frame.
[0008] Preferably, the clamping component includes a second spring, a clamping groove, a countersunk bolt, and a clamping plate. The clamping groove is provided inside the reinforcing frame, and the clamping plate is slidably connected inside the clamping groove. The second spring is fixedly connected between the clamping groove and the clamping plate. The countersunk bolt is threadedly connected inside the reinforcing frame and on one side of the clamping plate.
[0009] Preferably, the primary filter assembly further includes a positioning hole and a positioning post. The positioning post is fixedly connected to the side of the outer frame near the support frame, and the positioning hole is provided inside the support frame at the position corresponding to the positioning post.
[0010] Preferably, the pulling assembly includes a pulling block, a pulling plate, and a through hole. The pulling block is fixedly connected to the inner wall of the rotating pressing mechanism, and the pulling plate is fixedly connected to the side wall of the pulling block. The pulling plate has a through hole.
[0011] Preferably, the pulling assembly further includes a clamping block, a first spring, and a moving groove. The moving groove is provided inside the pulling block, and the clamping block is slidably connected inside the moving groove. The first spring is fixedly connected between the clamping block and the moving groove.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model features a pre-filter assembly. The outer frame is moved and placed inside the reinforcing frame, fitting against the side wall of the supporting frame. The positioning pin is then inserted into the positioning hole. The countersunk bolt is then rotated and screwed into the reinforcing frame. The rotation and movement of the countersunk bolt causes the clamping plate to move within the clamping groove. The movement of the clamping plate causes the second spring to stretch. When the clamping plate moves and fits against the side wall of the outer frame, the countersunk bolt enters the reinforcing frame, facilitating the disassembly and assembly of the pre-filter. During subsequent use, the gas can be pre-filtered under the action of the pre-filter, reducing the workload of the filter element.
[0014] 2. This utility model is equipped with a pull assembly. The filter element is inserted into the mounting frame, and then the finger is inserted into the through hole on the pull plate. Force is applied to drive the pull plate to rotate. The rotation of the pull plate drives the rotating pressing mechanism to rotate, which is convenient for the operator to rotate. After the rotating pressing mechanism rotates and fits against the side wall of the filter element, the pressing block is squeezed by the filter element and moves into the moving groove. The moving pressing block squeezes the first spring. Under the action of the pressing block, the filter element can be pressed, ensuring the stability of the filter element installation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a cross-sectional view of the connection between the reinforcing frame and the primary filter assembly of this utility model;
[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0018] Figure 4 This is a cross-sectional view of the pull block of this utility model.
[0019] In the diagram: 1. Mounting frame; 2. Pulling assembly; 21. Pulling block; 22. Pressing block; 23. Pulling plate; 24. Perforation; 25. First spring; 26. Moving groove; 3. Filter element; 4. Rotating pressing mechanism; 5. Reinforcing frame; 6. Primary filter assembly; 61. Primary filter screen; 62. External frame; 63. Positioning hole; 64. Positioning post; 65. Support frame; 66. Clamping element; 661. Second spring; 662. Clamping groove; 663. Countersunk bolt; 664. Clamping plate. Detailed Implementation
[0020] 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.
[0021] Example 1
[0022] Please see Figure 1-4 The present invention provides the following technical solution: a flat-plate air conditioner filter, including a mounting frame 1, with reinforcing frames 5 fixedly connected to both sides of the mounting frame 1, a filter element 3 inserted inside the mounting frame 1, a rotating pressing mechanism 4 provided at both ends inside the mounting frame 1 and above the filter element 3, a primary filter assembly 6 provided inside the reinforcing frame 5, and a pulling assembly 2 provided on the side wall of the rotating pressing mechanism 4.
[0023] Specifically, the primary filter assembly 6 includes a primary filter screen 61, an outer frame 62, a support frame 65, and a clamping member 66. The support frame 65 is fixedly connected to the inner wall of the reinforcing frame 5. The outer frame 62 is located inside the reinforcing frame 5 and on one side of the support frame 65. The clamping member 66 is located inside the reinforcing frame 5 and on the side of the outer frame 62 away from the support frame 65. The primary filter screen 61 is fixedly connected to the inner wall of the outer frame 62.
[0024] By adopting the above technical solution, the outer frame 62 is moved and placed inside the reinforcing frame 5 and made to fit against the side wall of the support frame 65. Then, the clamping member 66 is used to clamp and fix the outer frame 62. In this way, the primary filter 61 can be installed inside the reinforcing frame 5. In subsequent use, the gas can be pre-filtered under the action of the primary filter 61, reducing the workload of the filter element 3.
[0025] Specifically, the clamping component 66 includes a second spring 661, a clamping groove 662, a countersunk bolt 663, and a clamping plate 664. The clamping groove 662 is provided inside the reinforcing frame 5, and the clamping plate 664 is slidably connected inside the clamping groove 662. The second spring 661 is fixedly connected between the clamping groove 662 and the clamping plate 664. The countersunk bolt 663 is threadedly connected inside the reinforcing frame 5 and on one side of the clamping plate 664.
[0026] By adopting the above technical solution, the outer frame 62 is moved and placed inside the reinforcing frame 5, and then it is made to fit against the side wall of the support frame 65. Then, the countersunk bolt 663 is rotated and screwed into the reinforcing frame 5. The rotation and movement of the countersunk bolt 663 causes the abutment plate 664 to move inside the abutment groove 662. The movement of the abutment plate 664 causes the second spring 661 to stretch. When the abutment plate 664 moves and fits against the side wall of the outer frame 62, the countersunk bolt 663 enters into the reinforcing frame 5. This facilitates the disassembly and assembly of the primary filter screen 61 and ensures the normal operation of the entire device.
[0027] Specifically, the primary filter assembly 6 also includes a positioning hole 63 and a positioning post 64. The positioning post 64 is fixedly connected to the side of the outer frame 62 near the support frame 65, and the positioning hole 63 is provided inside the support frame 65 at the position corresponding to the positioning post 64.
[0028] By adopting the above technical solution, the outer frame 62 is moved and placed inside the reinforcing frame 5, and then it is made to fit against the side wall of the support frame 65. The positioning post 64 is then inserted into the positioning hole 63. Under the action of the positioning post 64 and the positioning hole 63, the positioning operation of the outer frame 62 and the support frame 65 can be performed to ensure the stability of the placement of the outer frame 62.
[0029] In this embodiment, the outer frame 62 is moved and placed inside the reinforcing frame 5, making it fit against the side wall of the supporting frame 65. The positioning post 64 is then inserted into the positioning hole 63. The countersunk bolt 663 is then rotated and screwed into the reinforcing frame 5. The rotation and movement of the countersunk bolt 663 causes the abutment plate 664 to move inside the abutment groove 662. The movement of the abutment plate 664 causes the second spring 661 to stretch. When the abutment plate 664 moves and fits against the side wall of the outer frame 62, the countersunk bolt 663 then enters the reinforcing frame 5. The mounting frame 1 is designed to facilitate the installation and removal of the primary filter 61. The filter element 3 is then inserted into the mounting frame 1 and the filter element 3 is pressed by the rotating clamping mechanism 4. The entire device is then moved to the desired location and the flat plate filter is installed and fixed inside the ventilation duct of the central air conditioning system using the mounting frame 1. The airflow passing through the central air conditioning ventilation duct will then be filtered through the primary filter 61 and then filtered again by the filter element 3, thus completing the airflow filtration of the central air conditioning ventilation duct.
[0030] Example 2
[0031] The difference between this embodiment and embodiment 1 is that the pulling assembly 2 includes a pulling block 21, a pulling plate 23, and a through hole 24. The pulling block 21 is fixedly connected to the inner wall of the rotating pressing mechanism 4, and the pulling plate 23 is fixedly connected to the side wall of the pulling block 21. The pulling plate 23 has a through hole 24.
[0032] Specifically, the pulling assembly 2 also includes a clamping block 22, a first spring 25, and a moving groove 26. The moving groove 26 is provided inside the pulling block 21, and the clamping block 22 is slidably connected inside the moving groove 26. The first spring 25 is fixedly connected between the clamping block 22 and the moving groove 26.
[0033] By adopting the above technical solution, after the rotating clamping mechanism 4 rotates to fit the side wall of the filter element 3, the clamping block 22 moves into the moving groove 26 under the squeezing action of the filter element 3. The moving clamping block 22 squeezes the first spring 25. Under the action of the clamping block 22, the filter element 3 can be clamped to ensure the stability of the filter element 3 installation.
[0034] In this embodiment, the filter element 3 is inserted into the mounting frame 1, and then the finger is inserted into the through hole 24 on the pull plate 23. Force is applied to rotate the pull plate 23. The rotation of the pull plate 23 drives the rotating pressing mechanism 4 to rotate, making it easy for the operator to rotate the rotating pressing mechanism 4. After the rotating pressing mechanism 4 rotates and fits against the side wall of the filter element 3, the pressing block 22 moves into the moving groove 26 under the squeezing action of the filter element 3. The moving pressing block 22 squeezes the first spring 25. Under the action of the pressing block 22, the filter element 3 can be pressed to ensure the stability of the filter element 3 installation.
[0035] The structure and principle of the rotating clamping mechanism 4, which consists of a clamping plate body, a rotating shaft, and a spring clamp head, in this utility model have been disclosed in a flat plate filter for central air conditioning ventilation ducts disclosed in Chinese patent application number 202220359821.4. Its working principle is as follows: clamping plate bodies are provided at both ends of the inner side of the mounting frame 1. The clamping plate bodies are rotatably connected to the mounting frame 1 through a rotating shaft. Spring clamp heads are connected to both sides of one end of the clamping plate body. The spring clamp heads and the clamping plate body are elastically connected by springs. A circular groove is provided on the inner side of the mounting frame 1 corresponding to the position of the spring clamp head. During operation, the filter element 3 can be fixed by the two clamping plate bodies, thereby installing the filter element 3 inside the mounting frame 1.
[0036] The working principle and usage process of this utility model are as follows: The outer frame 62 is moved and placed inside the reinforcing frame 5, and made to fit against the side wall of the supporting frame 65. The positioning post 64 is then inserted into the positioning hole 63. The countersunk bolt 663 is then rotated and screwed into the reinforcing frame 5. The rotation and movement of the countersunk bolt 663 causes the clamping plate 664 to move within the clamping groove 662. The movement of the clamping plate 664 causes the second spring 661 to stretch. When the clamping plate 664 moves and fits against the side wall of the outer frame 62, the countersunk bolt 663 enters the reinforcing frame 5, facilitating the disassembly and assembly of the primary filter 61. The filter element 3 is then inserted into the mounting frame 1. Finally, the finger is inserted into the through hole 24 on the pull plate 23, and force is applied to rotate the pull plate 23. The pull plate 23 rotates, driving the rotating pressing mechanism 4 to rotate, making it easy for the operator to rotate the rotating pressing mechanism 4. After the rotating pressing mechanism 4 rotates and fits against the side wall of the filter element 3, the pressing block 22 is squeezed by the filter element 3 and moves into the moving groove 26. The moving pressing block 22 squeezes the first spring 25. Under the action of the pressing block 22, the filter element 3 can be pressed to ensure the stability of the filter element 3 installation. Then the entire device is taken to the position where it is needed, and the flat plate filter is installed and fixed inside the ventilation duct of the central air conditioning through the mounting frame 1. At this time, the airflow flowing through the central air conditioning ventilation duct will be filtered through the primary filter screen 61 and then filtered again through the filter element 3, thereby completing the airflow filtration of the central air conditioning ventilation duct.
[0037] 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. A flat-plate air conditioning filter, comprising a mounting frame (1), wherein reinforcing frames (5) are fixedly connected to both sides of the mounting frame (1), a filter element (3) is inserted into the interior of the mounting frame (1), and a rotating pressing mechanism (4) is provided at both ends of the interior of the mounting frame (1) and above the filter element (3), characterized in that: The interior of the reinforcing frame (5) is provided with a primary filter assembly (6), and the side wall of the rotating pressing mechanism (4) is provided with a pulling assembly (2).
2. The filter of claim 1, wherein: The primary filter assembly (6) includes a primary filter screen (61), an outer frame (62), a support frame (65), and a clamping member (66). The support frame (65) is fixedly connected to the inner wall of the reinforcing frame (5). The outer frame (62) is provided inside the reinforcing frame (5) and on one side of the support frame (65). The clamping member (66) is provided inside the reinforcing frame (5) and on the side of the outer frame (62) away from the support frame (65). The primary filter screen (61) is fixedly connected to the inner wall of the outer frame (62).
3. The filter of claim 2, wherein: The clamping member (66) includes a second spring (661), a clamping groove (662), a countersunk bolt (663), and a clamping plate (664). The clamping groove (662) is provided inside the reinforcing frame (5). The clamping plate (664) is slidably connected inside the clamping groove (662). The second spring (661) is fixedly connected between the clamping groove (662) and the clamping plate (664). The countersunk bolt (663) is threadedly connected inside the reinforcing frame (5) and on one side of the clamping plate (664).
4. The filter of claim 2, wherein: The primary filter assembly (6) also includes a positioning hole (63) and a positioning post (64). The positioning post (64) is fixedly connected to the side of the outer frame (62) near the support frame (65). The positioning hole (63) is provided inside the support frame (65) at the position corresponding to the positioning post (64).
5. The filter of claim 1, wherein: The pulling assembly (2) includes a pulling block (21), a pulling plate (23) and a through hole (24). The pulling block (21) is fixedly connected to the inner wall of the rotating pressing mechanism (4), and the pulling plate (23) is fixedly connected to the side wall of the pulling block (21). The through hole (24) is provided on the pulling plate (23).
6. The filter of claim 5, wherein: The pulling assembly (2) further includes a pressing block (22), a first spring (25) and a moving groove (26). The moving groove (26) is provided inside the pulling block (21). The pressing block (22) is slidably connected inside the moving groove (26). The first spring (25) is fixedly connected between the pressing block (22) and the moving groove (26).