Medium efficiency filter convenient to disassemble and assemble

Abstract

The medium efficiency filter comprises a mounting frame, the top end of the mounting frame is fixedly connected with a rotating motor, the output end of the rotating motor is fixedly connected with a threaded rod, the surface of the threaded rod is in threaded connection with a movable plate, and the interior of the movable plate is slidably connected with a limiting rod; a cleaning brush is fixedly connected to the back face of the moving plate, an air inlet is formed in the middle of the mounting frame, a filter screen is fixedly connected to the inner wall of the air inlet, and a collecting box is fixedly connected to the inner wall of the mounting frame. The rotating motor is started, the output shaft of the rotating motor drives the threaded rod to rotate, the movable plate moves, the movable plate moves up and down in a reciprocating mode through the limiting effect of the limiting rod, the cleaning brush makes contact with the filter screen, and foreign matter or dust blocked in meshes of the filter screen is separated in the moving process of the movable plate; therefore, the ventilation effect of the filter screen is ensured, and the filter screen dismounting frequency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medium-efficiency filter technology, specifically a medium-efficiency filter that is easy to disassemble and assemble. Background Technology

[0002] Medium-efficiency filters are air purification devices, primarily used as intermediate-stage filters in central air conditioning and centralized air supply systems. They can filter out dust particles larger than 1-5 microns, protecting downstream filters and the system itself. Medium-efficiency filters are widely used in central air conditioning ventilation systems, pharmaceuticals, hospitals, electronics, food, and other industrial purification applications. They can also serve as pre-filters for high-efficiency filters, reducing the load on the high-efficiency filters and extending their lifespan.

[0003] According to CN221906286U, a medium-efficiency filter that is easy to install and remove is described. During operation, the filter assembly is first snapped into the slot, and then the fixing post at the bottom of the sealing cover is aligned with the groove and inserted. When the snap block is squeezed by the fixing post, the snap block retracts into the groove. When the fixing post is fully inserted into the groove, the snap block loses the squeezing force and is pushed by the spring to snap the snap block into the fixing post, thus completing the fixation. When disassembly is required, it is only necessary to pull the pull buckle and the pull bolt to separate the snap block from the fixing post, thereby completing the disassembly of the sealing cover.

[0004] The aforementioned filter components and other structures can achieve a filtration effect, but when the dustproof plate is used, dust and foreign objects are easily attached to its surface, which increases the frequency of cleaning and can easily cause the mesh to become clogged, affecting the normal flow of air. Utility Model Content

[0005] The purpose of this invention is to provide a medium-efficiency filter that is easy to install and disassemble, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a medium-efficiency filter that is easy to assemble and disassemble, comprising an installation frame, a rotary motor fixedly connected to the top of the installation frame, a threaded rod fixedly connected to the output end of the rotary motor, a movable plate threadedly connected to the surface of the threaded rod, a limit rod slidably connected inside the movable plate, a cleaning brush fixedly connected to the back of the movable plate, an air inlet provided in the middle of the installation frame, a filter screen fixedly connected to the inner wall of the air inlet, a collection box fixedly connected to the inner wall of the installation frame, and a filter bag fixedly connected to the side of the installation frame away from the collection box.

[0007] As a further preferred embodiment of this technical solution, the threaded rod and the mounting frame are rotatably connected, the limiting rod and the mounting frame are fixedly connected, the number of filter screens is set to multiple, the multiple filter screens are in contact with the cleaning brush, and the number of filter bags and filter screens corresponds to each other.

[0008] As a further preferred embodiment of this technical solution, the back of the mounting frame is provided with an outer shell, and an mounting plate is fixedly connected to the inner wall of the outer shell. The mounting plate has a slot on the side near the filter screen, and movable grooves are provided on the upper and lower sides of the mounting plate.

[0009] As a further preferred embodiment of this technical solution, a return spring is fixedly connected to the inner wall of the movable groove, a fixing plate is fixedly connected to the end of the return spring away from the movable groove, a hook is provided on the side of the fixing plate away from the return spring, and a pressing plate is provided on the side of the fixing plate away from the return spring.

[0010] As a further preferred embodiment of this technical solution, the fixing plate is located inside the movable groove, the hook is located inside the slot, the hook and the mounting frame are fixedly connected, and the pressing plate penetrates the outer shell and extends to its exterior.

[0011] As a further preferred embodiment of this technical solution, the inner wall of the outer shell is fixedly connected to an installation groove, an activated carbon layer is slidably connected inside the installation groove, a top plate is fixedly connected to the top of the activated carbon layer, sealing gaskets are fixedly connected to the front and rear sides of the top plate, a storage groove is opened on the top of the top plate, and a handle is rotatably connected inside the storage groove.

[0012] As a further preferred embodiment of this technical solution, two mounting slots are provided, the sealing gasket is made of rubber, and the sealing gasket is in contact with the outer casing.

[0013] This utility model provides a medium-efficiency filter that is easy to install and disassemble, and has the following beneficial effects:

[0014] (1) This utility model starts a rotary motor, whose output shaft drives the threaded rod to rotate, the moving plate moves, and the moving plate moves up and down through the limiting action of the limiting rod, the cleaning brush contacts the filter screen, and the foreign objects or dust blocking the filter screen mesh are removed during the movement of the moving plate, thereby ensuring the ventilation effect of the filter screen and reducing the frequency of filter screen disassembly.

[0015] (2) This utility model adds an activated carbon layer inside the outer shell. After the gas is filtered, the gas passes through the activated carbon layer to remove the odor or harmful gas contained in the gas, thereby improving the filtration effect of the filter. After the activated carbon layer has been used for a period of time, the handle can be pulled upward to remove it from the storage slot. Pulling the handle will remove the top plate and activated carbon layer for replacement, thereby ensuring the filtration effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the outer shell of this utility model;

[0018] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the filter bag and hook structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the movable plate and cleaning brush structure of this utility model.

[0021] In the diagram: 1. Mounting frame; 2. Rotary motor; 3. Threaded rod; 4. Moving plate; 5. Limiting rod; 6. Cleaning brush; 7. Air inlet; 8. Filter screen; 9. Collection box; 10. Filter bag; 11. Outer shell; 12. Mounting plate; 13. Slot; 14. Movable slot; 15. Return spring; 16. Fixing plate; 17. Hook; 18. Pressing plate; 19. Mounting slot; 20. Activated carbon layer; 21. Top plate; 22. Sealing gasket; 23. Storage slot; 24. Handle. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] This utility model provides a technical solution: such as Figure 1 and Figure 5 As shown in this embodiment, a medium-efficiency filter that is easy to assemble and disassemble includes a mounting frame 1. A rotary motor 2 is fixedly connected to the top of the mounting frame 1. A threaded rod 3 is fixedly connected to the output end of the rotary motor 2. A movable plate 4 is threadedly connected to the surface of the threaded rod 3. A limit rod 5 is slidably connected inside the movable plate 4. A cleaning brush 6 is fixedly connected to the back of the movable plate 4. An air inlet 7 is opened in the middle of the mounting frame 1. A filter screen 8 is fixedly connected to the inner wall of the air inlet 7. A collection box 9 is fixedly connected to the inner wall of the mounting frame 1. A filter bag 10 is fixedly connected to the side of the mounting frame 1 away from the collection box 9.

[0024] By starting the rotary motor 2, its output shaft drives the threaded rod 3 to rotate, causing the moving plate 4 to move. The moving plate 4 moves up and down repeatedly due to the limiting action of the limiting rod 5, so that the cleaning brush 6 contacts the filter screen 8. During the movement of the moving plate 4, foreign objects or dust blocking the mesh of the filter screen 8 are removed, thereby ensuring the ventilation effect of the filter screen 8 and reducing the frequency of disassembly of the filter screen 8.

[0025] The threaded rod 3 is rotatably connected to the mounting frame 1, the limiting rod 5 is fixedly connected to the mounting frame 1, and the number of filter screens 8 is set to be multiple. Multiple filter screens 8 are in contact with the cleaning brush 6, and the number of filter bags 10 corresponds to the number of filter screens 8.

[0026] The back of the mounting frame 1 is provided with an outer shell 11, and an mounting plate 12 is fixedly connected to the inner wall of the outer shell 11. The mounting plate 12 has a slot 13 on the side near the filter screen 8, and movable grooves 14 are provided on the upper and lower sides of the mounting plate 12.

[0027] A reset spring 15 is fixedly connected to the inner wall of the movable groove 14. A fixing plate 16 is fixedly connected to the end of the reset spring 15 away from the movable groove 14. A hook 17 is provided on the side of the fixing plate 16 away from the reset spring 15. A pressing plate 18 is provided on the side of the fixing plate 16 away from the reset spring 15.

[0028] By inserting the hook 17 into the slot 13 and pushing the mounting frame 1 inward, the hook 17 and the fixing plate 16, both having sloped surfaces, slide relative to each other and press the fixing plate 16. The return spring 15 is compressed and retracted, and the fixing plate 16 slides inward in the movable groove 14. When the mounting frame 1 contacts the mounting plate 12, the fixing plate 16 moves back under the elastic force of the return spring 15 and engages with the hook 17, thus fixing the position of the mounting frame 1. When the mounting frame 1 needs to be disassembled, the pressing plate 18 is pressed inward, causing the fixing plate 16 to press the return spring 15 inward, separating the hook 17 from the fixing plate 16. The mounting frame 1 can then be pulled outward to remove it, thereby improving the convenience of filter installation and disassembly.

[0029] The fixed plate 16 is located inside the movable groove 14, the hook 17 is located inside the slot 13, the hook 17 is fixedly connected to the mounting frame 1, and the pressing plate 18 passes through the outer shell 11 and extends to its exterior.

[0030] An installation groove 19 is fixedly connected to the inner wall of the outer shell 11. An activated carbon layer 20 is slidably connected inside the installation groove 19. A top plate 21 is fixedly connected to the top of the activated carbon layer 20. Sealing gaskets 22 are fixedly connected to the front and rear sides of the top plate 21. A storage groove 23 is opened on the top of the top plate 21. A handle 24 is rotatably connected inside the storage groove 23.

[0031] By adding an activated carbon layer 20 inside the outer casing 11, after the gas is filtered, the odor or harmful gases contained in the gas are removed through the activated carbon layer 20, thereby improving the filtration effect of the filter. After the activated carbon layer 20 has been used for a period of time, the handle 24 can be pulled upward to remove it from the storage slot 23. Pulling the handle will remove the top plate 21 and the activated carbon layer 20 for replacement, thus ensuring the filtration effect.

[0032] There are two mounting slots 19. The sealing gasket 22 is made of rubber and is in contact with the outer casing 11.

[0033] This utility model provides a medium-efficiency filter that is easy to install and disassemble. The specific working principle is as follows:

[0034] In use, the mounting frame 1 is inserted into the slot 13 via the hook 17. Pushing the mounting frame 1 inward causes the hook 17 to press against the fixing plate 16, compressing the return spring 15. The fixing plate 16 slides inward within the movable groove 14 until the mounting frame 1 contacts the mounting plate 12. Under the elastic force of the return spring 15, the fixing plate 16 moves back and engages with the hook 17, thus fixing the position of the mounting frame 1. When the filter is working, the filter screen 8 can block larger foreign objects and dust. Simultaneously, the rotary motor 2 is started, and its output shaft drives the threaded rod 3 to rotate, causing the moving plate 4 to move and be limited by a stop. The limiting action of rod 5 causes the moving plate 4 to move up and down reciprocally, cleaning the brush 6 to contact the filter screen 8, and during the movement of the moving plate 4, foreign objects or dust blocking the mesh of the filter screen 8 are removed and collected into the collection box 9. Small particles are captured by the filter bag 10, and odors or harmful gases in the gas are removed by the activated carbon layer 20, thereby improving the filtration effect. When it is necessary to disassemble the mounting frame 1, press the pressing plate 18 inward to make the fixing plate 16 press the return spring 15 inward, the hook 17 separates from the fixing plate 16, and the mounting frame 1 can be removed by pulling it outward.

[0035] 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 medium-efficiency filter that is easy to install and disassemble, comprising a mounting frame (1), characterized in that: A rotary motor (2) is fixedly connected to the top of the mounting frame (1), and a threaded rod (3) is fixedly connected to the output end of the rotary motor (2). A movable plate (4) is threadedly connected to the surface of the threaded rod (3). A limit rod (5) is slidably connected inside the movable plate (4). A cleaning brush (6) is fixedly connected to the back of the movable plate (4). An air inlet (7) is opened in the middle of the mounting frame (1). A filter screen (8) is fixedly connected to the inner wall of the air inlet (7). A collection box (9) is fixedly connected to the inner wall of the mounting frame (1). A filter bag (10) is fixedly connected to the side of the mounting frame (1) away from the collection box (9).

2. The medium-efficiency filter that is easy to install and disassemble according to claim 1, characterized in that: The threaded rod (3) and the mounting frame (1) are rotatably connected, the limiting rod (5) and the mounting frame (1) are fixedly connected, the number of filter screens (8) is set to multiple, the multiple filter screens (8) are in contact with the cleaning brush (6), and the number of filter bags (10) corresponds to the number of filter screens (8).

3. The medium-efficiency filter that is easy to install and disassemble according to claim 1, characterized in that: The mounting frame (1) has an outer shell (11) on its back. An mounting plate (12) is fixedly connected to the inner wall of the outer shell (11). The mounting plate (12) has a slot (13) on the side near the filter screen (8). Movable grooves (14) are provided on the upper and lower sides of the mounting plate (12).

4. A medium-efficiency filter that is easy to install and disassemble according to claim 3, characterized in that: A reset spring (15) is fixedly connected to the inner wall of the movable groove (14). A fixing plate (16) is fixedly connected to the end of the reset spring (15) away from the movable groove (14). A hook (17) is provided on the side of the fixing plate (16) away from the reset spring (15). A pressing plate (18) is provided on the side of the fixing plate (16) away from the reset spring (15).

5. A medium-efficiency filter that is easy to install and disassemble according to claim 4, characterized in that: The fixing plate (16) is located inside the movable groove (14), the hook (17) is located inside the slot (13), the hook (17) is fixedly connected to the mounting frame (1), and the pressing plate (18) penetrates the outer shell (11) and extends to its exterior.

6. A medium-efficiency filter that is easy to install and disassemble according to claim 3, characterized in that: The inner wall of the outer shell (11) is fixedly connected to an installation groove (19), and an activated carbon layer (20) is slidably connected inside the installation groove (19). A top plate (21) is fixedly connected to the top of the activated carbon layer (20), and sealing gaskets (22) are fixedly connected to the front and rear sides of the top plate (21). A storage groove (23) is opened on the top of the top plate (21), and a handle (24) is rotatably connected inside the storage groove (23).

7. A medium-efficiency filter that is easy to install and disassemble according to claim 6, characterized in that: The number of mounting slots (19) is set to two, the sealing gasket (22) is made of rubber, and the sealing gasket (22) is in contact with the outer shell (11).

Images