Backflush air filter muffler

Abstract

The utility model provides a backwash air filter type muffler relates to muffler technical field, include: filter drum, the inner wall surface fixed mounting of filter drum has filter core, the one end surface of filter drum is provided with and is connected with the muffling cylinder, the one side surface of muffling cylinder is equipped with control terminal, the inner wall between muffling cylinder is fixed with first baffle, second baffle and third baffle, the first baffle is connected with main air pipe, first trachea and second trachea and is passed in between second baffle, the inside of third baffle is equipped with switching assembly, the outer wall surface of switching assembly is equipped with intercommunication component, switching assembly includes two vertical grooves, two vertical grooves correspond and set up in the inside of third baffle and the inside of muffling cylinder one side inner wall. The utility model, the intercommunication pipe cooperation two sealing strips ensure that the pipeline is closed and is connected through, the phenomenon of air leakage appears when pipeline intercommunication, leads to air pressure drop, leads to backwash effect to be not good.

Description

Technical Field

[0001] This utility model relates to the field of silencer technology, and in particular to a backwashing air filter silencer. Background Technology

[0002] The main function of an air filtration system is to filter particulate matter, pollutants, and other harmful substances from the air to provide cleaner, healthier indoor air. Air handling equipment generates noise during operation. In places where maintaining fresh and quiet indoor air is crucial, such as hospital operating rooms, laboratories, and factory workshops, air filter silencers that combine air purification and noise control functions are required.

[0003] In the prior art, such as CN221788525U, a backwashing air filter silencer is disclosed, including a hollow filter cylinder and a silencer cylinder. Multiple filter elements are installed in the filter cylinder, and the filter cylinder and the silencer cylinder are connected by a main vent pipe. It also includes an airflow recirculation channel located inside the silencer cylinder and connected to the exhaust end of the main vent pipe; a switching pipe, one end of which is connected to the outside of the silencer cylinder, and the other end is connected to both the main vent pipe and the airflow recirculation channel; and a switching assembly installed in the silencer cylinder, which adjusts the position of the switching pipe to adapt to switching between silencer mode and backwashing mode. This invention achieves the purpose of silencer operation after air filtration and before exhaust, and allows for backwashing and recycling of the filter elements after dust accumulation, reducing operating costs.

[0004] However, during use, the patent lacks a connection structure between the switching pipe and the second air pipe and the main air pipe, which cannot ensure that the two are sealed and connected. This can lead to air leakage during ventilation, reducing the noise reduction effect and even causing a drop in air pressure, thus affecting the backwashing effect. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a backwashing air filter silencer, comprising: a filter cylinder, wherein a filter element is fixedly installed on the inner wall surface of the filter cylinder, a silencer is connected to one end surface of the filter cylinder, a control terminal is provided on one side surface of the silencer, a first partition, a second partition, and a third partition are fixedly installed sequentially between the inner walls of the silencer, the second partition is located between the first partition and the third partition, a main vent pipe, a first air pipe, and a second air pipe are fixedly connected through the first partition and the second partition, the second air pipe is located between the first air pipe and the main vent pipe, one end of the main vent pipe is embedded through one side of the silencer and is connected to one end of the filter cylinder, a switching component is provided inside the third partition, a connecting component is provided on the outer wall surface of the switching component, the switching component includes two vertical grooves, the two vertical grooves are correspondingly opened inside the third partition and inside one side inner wall of the silencer, and through grooves are opened on the inner wall surfaces of both the third partition and the silencer, the two through grooves correspondingly opening through the two vertical grooves.

[0007] Furthermore, movable plates are movably fitted inside both vertical grooves, and the two side surfaces of the two movable plates are movably fitted to the two side inner wall surfaces of the two vertical grooves. A switching tube is fixedly installed between the two movable plates, and two rings are fixedly sleeved on the outer wall surface of the switching tube.

[0008] Furthermore, multiple vertical rods are symmetrically fixedly installed between the upper and lower inner walls of the silencer. Two horizontal plates are fixedly installed between each pair of vertical rods. A first threaded rod is connected between each pair of horizontal plates via a bearing. A first motor is fixedly installed on the top surface of each of the two horizontal plates. The output ends of the two first motors movably pass through the two horizontal plates and are fixedly installed on the top surface of the two first threaded rods.

[0009] Furthermore, each of the two first threaded rods is threaded with a U-shaped connecting plate. The two ends of the top surfaces of the two U-shaped connecting plates are movably fitted onto the outer wall surfaces of the multiple vertical rods, and the two ends of the two U-shaped connecting plates are fixedly installed on the outer wall surfaces of the two rings.

[0010] Furthermore, the connecting component includes a U-shaped plate, which is fixedly installed on the outer wall surface of one of the rings. A second threaded rod is connected between the inner walls of the upper and lower ends of the U-shaped plate via a bearing. A second motor is fixedly installed on the top surface of the U-shaped plate, and the output end of the second motor movably passes through the top surface of the U-shaped plate and is fixedly installed on the top surface of the second threaded rod.

[0011] Furthermore, the outer wall surface of the second threaded rod is threaded with a movable block, and a rectangular groove is opened through one side of the inner wall surface of the U-shaped plate. The movable block moves through the interior of the rectangular groove, and the two sides of the movable block are correspondingly and movably attached to the two sides of the inner wall surface of the rectangular groove.

[0012] Furthermore, an arc-shaped groove is formed through the outer wall surface of the switching tube, and a connecting tube is movably fitted inside the switching tube. Sealing strips are fixedly installed around both ends of the connecting tube. A limiting block is fixedly installed on the outer wall surface of the connecting tube. The two sides of the limiting block correspond to the two sides of the inner wall surface of the arc-shaped groove. A hinge plate is hinged to the top surface of the limiting block, and the other end of the hinge plate is hinged to one side surface of the movable block.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] Connect one end of the filter cartridge to the air pump beforehand and run the air pump. The air pump will discharge air into the interior of the filter cartridge and filter it through the filter element. Then the air will enter the interior of the silencer through the main air pipe and be discharged into the interior of the silencer chamber through the first air pipe and the second air pipe. The air moves in the silencer chamber, the first air pipe and the second air pipe, and the noise cancels each other out, effectively reducing the noise emitted and achieving the purpose of noise reduction.

[0015] The second motor is operated by the control terminal. The second motor drives the second threaded rod to rotate, which in turn moves the movable block. The movable block moves the hinge plate, which in turn moves the limit block inside the arc groove. The limit block moves the connecting pipe inside the switching pipe. When the connecting pipe is completely inside the switching pipe, the two first motors are operated by the control terminal. The two first motors drive the two first threaded rods to rotate, which in turn moves the two U-shaped connecting plates on the surface of multiple vertical rods. The movement of the two U-shaped plates moves the two rings, which in turn moves the switching pipe. When the two U-shaped connecting plates move to the bottom, the center of the switching pipe is aligned with the center of the main vent pipe. Then, the second motor is operated again, so that the connecting pipe is inserted into the main vent pipe. With the help of two sealing strips, the main vent pipe and the switching pipe are sealed together. Then, one end of the switching pipe is connected to the air pump to deliver high-pressure gas. The high-pressure gas directly enters the filter cartridge through the switching pipe to backwash the filter element to remove the dust attached to it, making it easy to reuse.

[0016] With the above structure in place, the connecting pipe and two sealing strips ensure a closed and continuous connection between the pipes. When the pipes are connected, air leakage occurs, which leads to a drop in air pressure and poor backwashing effect. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a backwashing air filter silencer provided by this utility model;

[0018] Figure 2 A cross-sectional structural diagram of a backwashing air filter silencer provided by this utility model;

[0019] Figure 3 A cross-sectional plan view of a backwashing air filter silencer provided by this utility model;

[0020] Figure 4 A cross-sectional view of the silencer cylinder of a backwashing air filter silencer provided by this utility model;

[0021] Figure 5 A schematic diagram of the structure of a backwashing air filter silencer switching assembly provided by this utility model;

[0022] Figure 6 This utility model provides a backwashing air filter silencer. Figure 5 A partial structural diagram;

[0023] Figure 7 This utility model provides a backwashing air filter silencer. Figure 6 A cross-sectional structural diagram.

[0024] Legend:

[0025] 1. Filter cartridge; 101. Filter element; 2. Silencer; 201. First partition; 202. Second partition; 203. Third partition; 204. Main vent pipe; 205. First air pipe; 206. Second air pipe; 3. Switching assembly; 301. Vertical groove; 302. Through groove; 303. Movable plate; 304. Switching pipe; 305. Vertical rod; 306. Circular ring; 307. U-shaped connecting plate; 308. Horizontal plate; 309. First threaded rod; 310. First motor; 4. Connecting assembly; 401. U-shaped plate; 402. Second threaded rod; 403. Second motor; 404. Rectangular groove; 405. Movable block; 406. Arc groove; 407. Connecting pipe; 408. Sealing strip; 409. Limiting block; 410. Hinge plate; 5. Control terminal. 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 Figure 1-7 This utility model provides a technical solution: a backwashing air filter silencer, comprising: a filter cylinder 1, a filter element 101 fixedly installed on the inner wall surface of the filter cylinder 1, a silencer 2 connected to one end surface of the filter cylinder 1, a control terminal 5 provided on one side surface of the silencer 2, a first partition 201, a second partition 202 and a third partition 203 sequentially fixedly installed between the inner walls of the silencer 2, the second partition 202 being located between the first partition 201 and the third partition 203, and a main vent pipe 204, a first air pipe 205 and a third air pipe 203 being fixedly and continuously connected between the first partition 201 and the second partition 202. The second air pipe 206 is located between the first air pipe 205 and the main air pipe 204. One end of the main air pipe 204 is embedded in one side of the silencer 2 and is connected to one end of the filter cylinder 1. The interior of the third partition 203 is provided with a switching component 3. The outer wall surface of the switching component 3 is provided with a connecting component 4. The switching component 3 includes two vertical grooves 301. The two vertical grooves 301 are respectively opened inside the third partition 203 and inside the inner wall of one side of the silencer 2. The inner wall surfaces of the third partition 203 and the silencer 2 are both provided with through grooves 302. The two through grooves 302 are respectively opened through the two vertical grooves 301.

[0028] Specifically: the device can be used by connecting to an external power source via a line; the control terminal 5 controls the operation of the two first motors 310 and the second motor 403; the filter element 101 filters dust from the air; and the silencer 2 is made of sound-insulating material, which can play a certain role in sound insulation.

[0029] In one embodiment, movable plates 303 are movably fitted inside both vertical grooves 301, and the two side surfaces of the two movable plates 303 are movably fitted to the two side inner wall surfaces of the two vertical grooves 301. A switching tube 304 is fixedly installed between the two movable plates 303, and two rings 306 are fixedly sleeved on the outer wall surface of the switching tube 304.

[0030] Specifically, such as Figure 4-6 As shown: When the switching tube 304 is moved to its extreme at both ends, the two movable plates 303 always seal the two through slots 302 to ensure that the silencer 2 does not leak air.

[0031] In one embodiment, multiple vertical rods 305 are symmetrically fixedly installed between the upper and lower inner walls of the muffler 2. Two horizontal plates 308 are fixedly installed between each pair of vertical rods 305. A first threaded rod 309 is connected between each pair of horizontal plates 308 via a bearing. A first motor 310 is fixedly installed on the top surface of each of the two horizontal plates 308. The output ends of the two first motors 310 movably pass through the two horizontal plates 308 and are fixedly installed on the top surface of the two first threaded rods 309.

[0032] Specifically, such as Figure 4-5 As shown: the two first motors 310 are forward and reverse rotating motors, which drive the two first threaded rods 309 to rotate forward and reverse.

[0033] In one embodiment, the surfaces of the two first threaded rods 309 are threadedly connected with U-shaped connecting plates 307. The two ends of the top surfaces of the two U-shaped connecting plates 307 are correspondingly and movably fitted onto the outer wall surfaces of the multiple vertical rods 305. The two ends of the two U-shaped connecting plates 307 are correspondingly and fixedly installed on the outer wall surfaces of the two rings 306.

[0034] Specifically, such as Figure 5-6 As shown: the two U-shaped connecting plates 307 move with the help of two first threaded rods 309 and multiple vertical rods 305, and the two U-shaped connecting plates 307 drive the two rings 306 to move.

[0035] In one embodiment, the connecting component 4 includes a U-shaped plate 401, which is fixedly installed on the outer wall surface of one of the rings 306. A second threaded rod 402 is connected between the inner walls of the upper and lower ends of the U-shaped plate 401 through a bearing. A second motor 403 is fixedly installed on the top surface of the U-shaped plate 401. The output end of the second motor 403 movably passes through the top surface of the U-shaped plate 401 and is fixedly installed on the top surface of the second threaded rod 402.

[0036] Specifically, such as Figure 6 As shown: The second motor 403 is a forward and reverse rotating motor, which drives the second threaded rod 402 to rotate forward and reverse.

[0037] In one embodiment, the outer wall surface of the second threaded rod 402 is threaded with a movable block 405, and a rectangular groove 404 is opened through one side of the inner wall surface of the U-shaped plate 401. The movable block 405 moves through the interior of the rectangular groove 404, and the two sides of the movable block 405 are correspondingly and movably attached to the two sides of the inner wall surface of the rectangular groove 404.

[0038] Specifically, such as Figure 6As shown: the two side surfaces of the movable block 405 correspond to the two side inner wall surfaces of the rectangular groove 404, which ensures the stable movement of the movable block 405. The movable block 405 moves with the help of the second threaded rod 402 and the rectangular groove 404.

[0039] In one embodiment, an arc-shaped groove 406 is provided through the outer wall surface of the switching tube 304, and a connecting tube 407 is movably fitted inside the switching tube 304. Sealing strips 408 are fixedly installed around both ends of the connecting tube 407. Limiting blocks 409 are fixedly installed on the outer wall surface of the connecting tube 407. The two side surfaces of the limiting blocks 409 correspond to the two side inner wall surfaces of the arc-shaped groove 406. A hinge plate 410 is hinged to the top surface of the limiting blocks 409, and the other end of the hinge plate 410 is hinged to one side surface of the movable block 405.

[0040] Specifically, such as Figure 6-7 As shown: the hinge plate 410 plays the role of driving the connecting pipe 407 to move inside the switching pipe 304, and the two sealing strips 408 play the role of ensuring the sealed and continuous connection between the pipes.

[0041] Working principle:

[0042] When using this backwashing air filter silencer, one end of the filter cylinder 1 is connected to the air pump beforehand and the air pump is run. The air pump runs and discharges air into the interior of the filter cylinder 1, where it is filtered by the filter element 101. Then, the air enters the interior of the silencer cylinder 2 through the main air pipe 204 and is discharged into the interior of the silencer chamber through the first air pipe 205 and the second air pipe 206. The air moves in the silencer chamber, the first air pipe 205, and the second air pipe 206, and the noise cancels each other out, effectively reducing the noise emitted and achieving the purpose of silencing.

[0043] When it is necessary to clean the dust in the filter element 101, the second motor 403 is activated via the control terminal 5. The second motor 403 drives the second threaded rod 402 to rotate, which in turn moves the movable block 405. The movable block 405 then moves the hinge plate 410, which in turn moves the limiting block 409 within the arc-shaped groove 406. The limiting block 409 then moves the connecting pipe 407 within the switching pipe 304. When the connecting pipe 407 is fully inside the switching pipe 304, the two first motors 310 are activated via the control terminal 5. The two first motors 310 drive the two first threaded rods 309 to rotate, which in turn move the two U-shaped connecting plates 3... 07 moves on the surface of multiple vertical rods 305. The movement of two U-shaped plates 401 drives the movement of two rings 306. The movement of the two rings 306 drives the movement of the switching tube 304. When the two U-shaped connecting plates 307 move to the bottom, the center of the switching tube 304 is flush with the center of the main vent pipe 204. Then the second motor 403 is run again, so that the connecting tube 407 is inserted into the inside of the main vent pipe 204. With the help of two sealing strips 408, the main vent pipe 204 and the switching tube 304 are self-sealed. Then one end of the switching tube 304 is connected to the air pump to deliver high-pressure gas. The high-pressure gas directly enters the filter cartridge 1 through the switching tube 304 to backwash the filter element to remove the dust attached to it, so that it can be reused.

[0044] With the cooperation of the above structures, the connecting pipe 407 and the two sealing strips 408 ensure a closed and continuous connection between the pipes. When the pipes are connected, air leakage occurs, which leads to a drop in air pressure and poor backwashing effect.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A backwashing air-filtered silencer, characterized in that, include: A filter cartridge (1) has a filter element (101) fixedly installed on its inner wall surface. A silencer (2) is connected to one end of the filter cartridge (1). A control terminal (5) is provided on one side of the silencer (2). A first partition (201), a second partition (202), and a third partition (203) are fixedly installed sequentially between the inner walls of the silencer (2). The second partition (202) is located between the first partition (201) and the third partition (203). A main vent pipe (204), a first air pipe (205), and a second air pipe (206) are fixedly connected through the first partition (201) and the second partition (202). The second air pipe (206) is located at... Between the first air pipe (205) and the main air pipe (204), one end of the main air pipe (204) is embedded in one side of the silencer (2) and is connected to one end of the filter (1). The interior of the third partition (203) is provided with a switching component (3). The outer wall surface of the switching component (3) is provided with a connecting component (4). The switching component (3) includes two vertical grooves (301). The two vertical grooves (301) are respectively opened inside the third partition (203) and inside the inner wall of one side of the silencer (2). The inner wall surfaces of the third partition (203) and the silencer (2) are both provided with through grooves (302). The two through grooves (302) are respectively opened through the two vertical grooves (301).

2. The backwashing air filter silencer according to claim 1, characterized in that: Movable plates (303) are movably fitted inside both vertical grooves (301). The two side surfaces of the two movable plates (303) are movably fitted to the inner side surfaces of the two vertical grooves (301). A switching tube (304) is fixedly installed between the two movable plates (303). Two rings (306) are fixedly sleeved on the outer wall surface of the switching tube (304).

3. The backwashing air filter silencer according to claim 1, characterized in that: Multiple vertical rods (305) are symmetrically fixed between the upper and lower inner walls of the silencer (2). Two horizontal plates (308) are fixedly installed between each pair of vertical rods (305). A first threaded rod (309) is connected between each pair of horizontal plates (308) via a bearing. A first motor (310) is fixedly installed on the top surface of each of the two horizontal plates (308). The output ends of the two first motors (310) movably pass through the two horizontal plates (308) and are fixedly installed on the top surface of the two first threaded rods (309).

4. A backwashing air filter silencer according to claim 3, characterized in that: Both of the first threaded rods (309) are threaded with U-shaped connecting plates (307). The two ends of the top surfaces of the two U-shaped connecting plates (307) are movably fitted onto the outer wall surfaces of the multiple vertical rods (305). The two ends of the two U-shaped connecting plates (307) are fixedly installed on the outer wall surfaces of the two rings (306).

5. A backwashing air filter silencer according to claim 1, characterized in that: The connecting component (4) includes a U-shaped plate (401), which is fixedly installed on the outer wall surface of one of the rings (306). A second threaded rod (402) is connected between the inner walls of the upper and lower ends of the U-shaped plate (401) through a bearing. A second motor (403) is fixedly installed on the top surface of the U-shaped plate (401). The output end of the second motor (403) movably passes through the top surface of the U-shaped plate (401) and is fixedly installed on the top surface of the second threaded rod (402).

6. A backwashing air filter silencer according to claim 5, characterized in that: The outer wall surface of the second threaded rod (402) is threaded with a movable block (405). A rectangular groove (404) is opened through one side of the inner wall surface of the U-shaped plate (401). The movable block (405) moves through the interior of the rectangular groove (404). The two sides of the movable block (405) are correspondingly and dynamically attached to the two sides of the inner wall surface of the rectangular groove (404).

7. A backwashing air filter silencer according to claim 2, characterized in that: An arc-shaped groove (406) is provided through the outer wall surface of the switching tube (304). A connecting tube (407) is movably fitted inside the switching tube (304). Sealing strips (408) are fixedly installed around both ends of the connecting tube (407). A limiting block (409) is fixedly installed on the outer wall surface of the connecting tube (407). The two side surfaces of the limiting block (409) correspond to the two side inner wall surfaces of the arc-shaped groove (406). A hinge plate (410) is hinged to the top surface of the limiting block (409). The other end of the hinge plate (410) is hinged to one side surface of the movable block (405).

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