Brush plating waste gas suction, collection and filtration device

Abstract

The invention discloses a brush plating waste gas suction collecting and filtering device which comprises a mounting frame fixedly mounted on brush plating equipment, a suction device is fixedly mounted below the mounting frame, a filtering box is fixedly mounted on the upper surface of the mounting frame, and a conveying pump is fixedly mounted on the upper surface of the mounting frame. The conveying pump is connected with the air suction device through a first connecting pipe, the conveying pump is connected with the filter box through a second connecting pipe, an air outlet pipe is fixedly mounted on the upper surface of the filter box, a mounting cylinder is fixedly mounted in the filter box, and a filter screen is fixedly mounted in the middle of the mounting cylinder. According to the brush plating waste gas air suction collecting and filtering device, the novel structural design is adopted, in the waste gas filtering process, a chemical agent in a storage cylinder below a piston plate is sprayed out of an atomization spray head through a supply mechanism, the sprayed chemical agent is adsorbed into filtering cotton, and the follow-up filtering effect of the filtering cotton is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of waste gas filtration technology, specifically to a brush plating waste gas suction collection and filtration device. Background Technology

[0002] Brush plating, also known as electroplating, selective electroplating, or tankless electroplating, is a localized, rapid, and mobile electrochemical metal deposition technology. Similar to traditional electroplating (tank plating), it uses the principle of electrolysis to deposit a metal coating on the surface of parts. During the brush plating process, waste gas is generated, and a filtration device is needed to filter out particulate impurities in the waste gas to prevent the waste gas from affecting the surrounding environment.

[0003] As in the prior art, Chinese Patent Application No. CN202220462308.8 discloses an electroplating waste gas adsorption device, which addresses the problem that the filter cartridge in the adsorption treatment tank easily accumulates a large amount of dust and impurities after long-term use, requiring repeated disassembly and cleaning, which is inconvenient. The present invention proposes the following solution, which includes an adsorption treatment tank shell, and a cleaning mechanism connected to the end of the gas supply pipe b away from the gas pump is set between the adsorption treatment tank shell and the filter cartridge. A drive mechanism is rotatably connected to the support frame. In this utility model, gas with a certain pressure in the cleaning mechanism is injected into the surface of the filter cartridge to quickly clean the filter cartridge. At the same time, the gas in the cleaning mechanism is injected through the gas supply pipe a to the drive mechanism to drive the connecting plate to rotate the brush plate. The soft brush part of the brush plate is in contact with the side of the filter cartridge and rotates, thereby further cleaning the surface of the filter cartridge and fully removing solid impurities from the surface of the filter cartridge.

[0004] For example, in the prior art, Chinese patent application number CN201620020706.9 discloses a micro-galvanized waste gas filtration device, including a closed shell with two interconnected cavities. A first filter element and a second filter element are installed in the two cavities respectively. An air inlet and an air outlet are provided on the shell. The first filter element and the second filter element divide their respective cavities into inner cavities and outer cavities. The air inlet is connected to the outer cavity of the cavity containing the first filter element, the inner cavity of the cavity containing the first filter element is connected to the outer cavity of the cavity containing the second filter element, and the inner cavity of the cavity containing the second filter element is connected to the air outlet. A first differential pressure gauge is installed between the inner cavity and the outer cavity of the cavity containing the first filter element, and a second differential pressure gauge is installed between the inner cavity and the outer cavity of the cavity containing the second filter element.

[0005] For example, in the prior art, Chinese patent application number CN202310234707.8 discloses a circulating system for treating electroplating waste gas, including a spray tower. A dry filter is provided on one side of the spray tower, an activated carbon filter is provided on the other side of the dry filter, and a catalytic combustion furnace is provided on the other side of the activated carbon filter. A chimney is connected to the front end of the catalytic combustion furnace. The dry filter includes a housing, and a primary filter plate, a medium-efficiency filter plate, and a high-efficiency filter plate are slidably connected inside the housing. A first reciprocating screw, a second reciprocating screw, and a third reciprocating screw are respectively provided at one end of the housing, and the first reciprocating screw, the second reciprocating screw, and the third reciprocating screw are respectively connected to the primary filter plate, the medium-efficiency filter plate, and the high-efficiency filter plate.

[0006] Based on the above information, it can be seen that in order to purify harmful chemicals in exhaust gas, existing exhaust gas filtration devices can reach saturation after prolonged use, which affects the effectiveness of subsequent use. Summary of the Invention

[0007] The purpose of this invention is to provide a brush plating waste gas suction collection and filtration device to solve the problem of poor filtration effect after long-term use mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a brush plating waste gas suction collection and filtration device, comprising a mounting frame fixedly installed on a brush plating equipment, a suction device fixedly installed below the mounting frame, a filter box fixedly installed on the upper surface of the mounting frame, and a delivery pump fixedly installed on the upper surface of the mounting frame. The delivery pump is connected to the suction device through a first connecting pipe and to the filter box through a second connecting pipe. The delivery pump draws the suction device into the filter box, where the waste gas is initially filtered using a filter screen located in the middle of the mounting cylinder. The upper surface of the filter box is fixedly equipped with... Equipped with an air outlet duct, the filter box has an installation cylinder fixedly installed inside, and a filter screen fixedly installed in the middle of the installation cylinder. A storage box is fixedly installed at the bottom inside the installation cylinder, and filter cotton with equal spacing is fixedly installed on the upper surface of the storage box. The filter cotton inside the installation cylinder filters the exhaust gas again. A horizontally arranged piston plate is installed at the upper end inside the installation cylinder, and a supply mechanism is provided below the piston plate. The supply mechanism sprays the chemical agent in the storage cylinder below the piston plate from the atomizing nozzle, and the sprayed chemical agent is adsorbed into the filter cotton to ensure the subsequent filtration effect of the filter cotton.

[0009] Preferably, a limiting roller that rotatably abuts against the outer surface of the mounting cylinder is rotatably installed at the lower end of the filter box, and a drive roller that abuts against the outer surface of the mounting cylinder is rotatably installed at the upper end of the filter box. The drive roller is driven to rotate by a servo motor fixedly installed on the upper surface of the filter box, and a cleaning scraper that contacts the outer surface of the filter screen is fixedly installed on the inner side wall of the filter box. The servo motor drives the drive roller to rotate, and the friction between the drive roller and the outer surface of the mounting cylinder drives the mounting cylinder to rotate. At this time, the filter screen in the middle position of the mounting cylinder moves relative to the cleaning scraper, and the cleaning scraper cleans the surface of the filter screen.

[0010] Preferably, the supply mechanism includes a storage cylinder fixedly installed on the lower surface of the piston plate, and a lifting pipe is fixedly installed on the lower surface of the storage cylinder. The lower end of the lifting pipe extends into the storage tank. Under negative pressure, the chemical agent in the storage tank is lifted into the storage cylinder through the lifting pipe. Both the atomizing nozzle and the lifting pipe are equipped with a one-way valve structure, so that the chemical agent can only flow in one direction.

[0011] Preferably, the lower surface of the storage cylinder is fixedly equipped with atomizing nozzles arranged at equal intervals, and the atomizing nozzles correspond one-to-one with the filter cotton, so that the chemical agents in the storage cylinder are discharged through the atomizing nozzles under air pressure.

[0012] Preferably, a squeezing plate is fixedly installed on the lower surface of the piston plate, and the squeezing plate corresponds to the filter cotton. During the downward movement of the piston plate, the squeezing plate moves downward synchronously. At this time, the squeezing plate squeezes the filter cotton to squeeze out the used chemical agents in the filter cotton. The piston plate has a groove structure on its side, and the groove on the side of the piston plate slides in contact with the sealing block fixedly installed on the inner wall of the mounting cylinder. The upper surface of the mounting cylinder has a connecting groove corresponding to the air outlet pipe.

[0013] Preferably, a blower airbag is fixedly installed at the middle position of the upper surface of the piston plate, and the blower airbag is connected to the storage cylinder. A connecting spring is fixedly installed between the upper surface of the piston plate and the inside of the top of the mounting cylinder. The piston plate squeezes the blower airbag to expel the air in the blower airbag into the storage cylinder.

[0014] Preferably, a connecting sleeve is fixedly installed at the lower end of the filter cotton, and a piston rod is fixedly installed at the upper end of the filter cotton. The piston rod is slidably connected to the inside of the connecting sleeve in a piston-like manner. The side wall of the connecting sleeve has through holes arranged at equal intervals. When the piston plate moves upward, the filter cotton resets. At this time, the piston plate in the filter cotton moves upward relative to the connecting sleeve, so that the connecting sleeve forms a negative pressure. Under the action of negative pressure, the adsorption effect of the filter cotton on chemical agents is improved.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the brush plating waste gas suction collection and filtration device adopts a novel structural design, the specific details of which are as follows: 1. The suction device draws the air into the filter box through the delivery pump. The filter screen in the middle of the installation cylinder performs preliminary filtration of the exhaust gas. Then, the filter cotton inside the installation cylinder filters the exhaust gas again. At this time, the chemical agents in the filter cotton neutralize the acidic substances in the exhaust gas, thereby purifying the exhaust gas. Finally, the filtered exhaust gas is discharged from the exhaust pipe. During the filtration process, the chemical agents in the storage cylinder below the piston plate are sprayed from the atomizing nozzle by the supply mechanism. The sprayed chemical agents are adsorbed into the filter cotton to ensure the subsequent filtration effect of the filter cotton. Furthermore, during the exhaust gas filtration process, the air pressure in the installation cylinder pushes the piston plate upward. At this time, the piston plate compresses the blower airbag, forcing the air in the blower airbag into the storage cylinder. Under the action of air pressure, the chemical agent in the storage cylinder is discharged through the atomizing nozzle. When filtration stops, the piston plate is pushed downward by the connecting spring, thereby causing the blower airbag to expand. Under the action of negative pressure, the chemical agent in the storage box is lifted into the storage cylinder through the riser pipe.

[0016] 2. As the piston plate moves downward, it drives the extrusion plate to move downward synchronously. At this time, the extrusion plate squeezes the filter cotton to squeeze out the used chemical agents in the filter cotton. Furthermore, when the piston plate moves upward, the filter cotton resets. At this time, the piston plate in the filter cotton moves upward relative to the connecting sleeve, causing the connecting sleeve to form a negative pressure. Under the action of negative pressure, the adsorption effect of the filter cotton on chemical agents is improved.

[0017] 3. During the process of filtering exhaust gas, turn on the servo motor above the filter box. The servo motor drives the drive roller to rotate. The friction between the drive roller and the outer surface of the mounting cylinder drives the mounting cylinder to rotate. At this time, the filter screen in the middle of the mounting cylinder moves relative to the cleaning scraper. The cleaning scraper cleans the surface of the filter screen. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the filter box of the present invention; Figure 3 This is a schematic diagram of the mounting cylinder structure of the present invention; Figure 4 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the internal structure of the filter cartridge of the present invention; Figure 6 This is a schematic diagram of the filter cotton structure of the present invention; Figure 7 This is a schematic diagram of the upper surface structure of the piston plate of the present invention; Figure 8 This is a schematic diagram of the lower surface structure of the piston plate of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point B; Figure 10 This is a schematic diagram of the connection structure between the blower airbag and the storage cylinder of the present invention; Figure 11 This is a schematic diagram showing the relationship between the lifting pipe and the storage tank connecting pipe of the present invention; Figure 12 These are schematic diagrams of the internal structure of the filter cotton in Embodiments 1 and 2 of the present invention; Figure 13 This is a schematic diagram of the internal structure of the filter cotton in Embodiment 3 of the present invention.

[0019] In the diagram: 1. Mounting bracket; 2. Suction device; 3. Filter box; 4. Delivery pump; 5. First connecting pipe; 6. Second connecting pipe; 7. Air outlet pipe; 8. Mounting cylinder; 9. Filter screen; 10. Connecting groove; 11. Limiting roller; 12. Drive roller; 13. Servo motor; 14. Cleaning scraper; 15. Storage box; 16. Filter cotton; 17. Piston plate; 18. Extrusion plate; 19. Sealing block; 20. Blower airbag; 21. Connecting spring; 22. Storage cylinder; 23. Lifting pipe; 24. Atomizing nozzle; 25. Connecting sleeve; 26. Piston rod; 27. Through hole. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figures 1-4In order to achieve the purpose of filtering the waste gas from brush plating, this embodiment provides the following technical solution, which specifically discloses: a mounting frame 1 fixedly installed on the brush plating equipment, a suction device 2 fixedly installed below the mounting frame 1, a filter box 3 fixedly installed on the upper surface of the mounting frame 1, a delivery pump 4 fixedly installed on the upper surface of the mounting frame 1, the delivery pump 4 being connected to the suction device 2 through a first connecting pipe 5, and the delivery pump 4 being connected to the filter box 3 through a second connecting pipe 6, and an exhaust pipe 7 fixedly installed on the upper surface of the filter box 3, an installation cylinder 8 fixedly installed inside the filter box 3, and a filter screen 9 fixedly installed in the middle of the installation cylinder 8, a limiting roller 11 rotatably installed at the lower end of the filter box 3 that abuts against the outer surface of the installation cylinder 8, and a driving roller 12 rotatably installed at the upper end of the filter box 3 that abuts against the outer surface of the installation cylinder 8, the driving roller 12 being driven to rotate by a servo motor 13 fixedly installed on the upper surface of the filter box 3, and a cleaning scraper 14 that contacts the outer surface of the filter screen 9 fixedly installed on the inner side wall of the filter box 3.

[0022] When using the device, first, fix the mounting bracket 1 in the brush plating equipment. At this time, align the suction device 2 below the mounting bracket 1 with the brush plating position. Then, turn on the delivery pump 4 above the mounting bracket 1. The suction device 2 will transport the brush plating exhaust gas through the first connecting pipe 5 and the second connecting pipe 6 into the filter box 3. At this time, the filter screen 9 in the middle of the mounting cylinder 8 inside the filter box 3 will perform preliminary filtration on the exhaust gas, removing particulate impurities. The pre-filtered exhaust gas will then enter the mounting cylinder 8, where the filter cotton 16 inside the mounting cylinder 8 will perform a second filtration. The filter cotton 16 contains chemical agents, and the alkali will be used to further filter the exhaust gas. The chemical agents neutralize the acidic substances in the exhaust gas, thereby purifying the exhaust gas. The purified exhaust gas is then discharged from the exhaust pipe 7 through the connecting groove 10 above the mounting cylinder 8. During the filtration process, the servo motor 13 above the filter box 3 is activated, which drives the drive roller 12 to rotate. The friction between the drive roller 12 and the outer surface of the mounting cylinder 8 drives the mounting cylinder 8 to rotate. At this time, the limiting roller 11 inside the filter box 3 limits the mounting cylinder 8. Meanwhile, the filter screen 9 moves relative to the cleaning scraper 14 on the inner wall of the filter box 3, and the cleaning scraper 14 cleans the outer surface of the filter screen 9.

[0023] Example 2: Please refer to Figures 5-12To ensure the subsequent filtration effect, this embodiment provides the following technical solution, which is suitable for applications where there are relatively few acidic harmful substances in the exhaust gas. In this case, it mainly filters particulate impurities in the exhaust gas. Specifically, a storage box 15 is fixedly installed at the bottom of the installation cylinder 8. Filter cotton 16 with equal spacing is fixedly installed on the upper surface of the storage box 15. A horizontally arranged piston plate 17 is installed at the upper end of the installation cylinder 8, and a supply mechanism is provided below the piston plate 17. The supply mechanism adds reagent to the filter cotton 16. The supply mechanism includes a storage cylinder 22 fixedly installed on the lower surface of the piston plate 17. A lift pipe 23 is fixedly installed on the lower surface of the storage cylinder 22, and the lower end of the lift pipe 23 extends into the storage box 15. Atomizing nozzles 24 with equal spacing are fixedly installed on the lower surface of the storage cylinder 22. The filter cotton 16 corresponds one-to-one. The piston plate 17 has a compression plate 18 fixedly installed on its lower surface, and the compression plate 18 corresponds to the filter cotton 16. The piston plate 17 has a groove structure on its side. The groove on the side of the piston plate 17 slides in contact with the sealing block 19 fixedly installed on the inner wall of the mounting cylinder 8. The upper surface of the mounting cylinder 8 has a connecting groove 10 corresponding to the air outlet pipe 7. The blower air bag 20 is fixedly installed in the middle of the upper surface of the piston plate 17 and is connected to the storage cylinder 22. A connecting spring 21 is fixedly installed between the upper surface of the piston plate 17 and the inside of the top of the mounting cylinder 8. A connecting sleeve 25 is fixedly installed at the lower end of the filter cotton 16. A piston rod 26 is fixedly installed at the upper end of the filter cotton 16. The piston rod 26 is piston-slidably connected to the inside of the connecting sleeve 25. The side wall of the connecting sleeve 25 has through holes 27 arranged at equal intervals.

[0024] During the exhaust gas filtration process, the air pressure in the mounting cylinder 8 continuously increases. Under the action of air pressure, the piston plate 17 is pushed upward. When the piston plate 17 disengages from the sealing block 19, the exhaust gas is smoothly discharged through the connecting groove 10. When the piston plate 17 moves upward, it squeezes the blower bladder 20 above it. At this time, the air in the blower bladder 20 is discharged into the storage cylinder 22. The air pressure is used to atomize and spray the chemical agent in the storage cylinder 22 through the atomizing nozzle 24. The sprayed chemical agent is absorbed by the filter cotton 16, ensuring the effectiveness of the filter cotton 16. When the exhaust gas filtration is stopped, the delivery pump 4 is turned off. At this time, under the elastic action of the connecting spring 21, the piston plate 17 is pushed downward. The piston plate 17 resets the blower bladder 20. At this time, the blower bladder 20 expands and produces A negative pressure is generated, and under the action of the negative pressure, the chemical agent in the storage tank 15 is lifted into the storage cylinder 22 through the riser pipe 23 for the next use. Both the atomizing nozzle 24 and the riser pipe 23 are equipped with a one-way valve structure, so that the chemical agent can only flow in one direction. When the piston plate 17 moves downward, it drives the extrusion plate 18 to move downward synchronously, thereby using the extrusion plate 18 to squeeze the filter cotton 16 and squeeze out the used chemical agent in the filter cotton 16. After the piston plate 17 moves upward, the filter cotton 16 returns to its original position. At this time, the piston rod 26 in the filter cotton 16 moves upward relative to the connecting sleeve 25. The upward movement of the piston rod 26 creates a negative pressure inside the connecting sleeve 25. Under the adsorption effect, air is adsorbed through the through hole 27, increasing the adsorption effect of the filter cotton 16 on the chemical agent.

[0025] Example 3: Please refer to Figures 5-11 and Figure 13 This embodiment provides the following technical solution, which is applicable to the centralized treatment of waste gas that has been collected by the collection device. Specifically, the installation frame 1 is fixedly installed on the waste gas collection device, such as the waste gas collection tank. At this time, the suction device 2 extends into the inside of the waste gas collection tank, and the filter cotton 16 has a uniformly arranged large hole structure inside.

[0026] When using the device under this condition, firstly, the delivery pump 4 is turned on to draw the concentrated waste gas in the collection tank into the filter box 3 through the suction device 2. When the piston plate 17 is pushed upward by the air pressure, referring to the principle in Embodiment 2, the chemical agent in the storage cylinder 22 is discharged through the atomizing nozzle 24. When the piston plate 17 moves to the critical position of contacting the sealing block 19, the delivery pump 4 is turned off. When the delivery pump 4 is not working, the gas can flow in reverse. At this time, under the elastic compression of the connecting spring 21, the piston plate 17 is pushed downward. Referring to the principle in Embodiment 2, the lifting pipe 23 is used to... The chemical agent in storage tank 15 is drawn into storage cylinder 22. This process is repeated, causing piston plate 17 to move up and down continuously, thereby spraying the chemical agent multiple times using atomizing nozzle 24. This thoroughly filters the exhaust gas entering the installation cylinder 8. During this process, piston rod 26 in filter cotton 16 moves back and forth with connecting sleeve 25 multiple times. The negative pressure is used to better adsorb the chemical agent into filter cotton 16 (the filter cotton 16 has a large pore structure to improve its adsorption effect). Furthermore, when exhausting through hole 27, it can agitate the exhaust gas inside the device, making the exhaust gas distribution more uniform and achieving a better purification effect.

[0027] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A brush plating exhaust gas suction collection and filtration device, comprising a mounting frame (1) fixedly installed on a brush plating equipment, a suction device (2) fixedly installed below the mounting frame (1), and a filter box (3) fixedly installed on the upper surface of the mounting frame (1), characterized in that, Also includes: A delivery pump (4) is fixedly installed on the upper surface of the mounting bracket (1). The delivery pump (4) is connected to the suction device (2) through the first connecting pipe (5), and the delivery pump (4) is connected to the filter box (3) through the second connecting pipe (6). An air outlet pipe (7) is fixedly installed on the upper surface of the filter box (3). The filter box (3) is fixedly installed with an installation cylinder (8), and a filter screen (9) is fixedly installed in the middle of the installation cylinder (8). A storage box (15) is fixedly installed at the bottom of the installation cylinder (8). Filter cotton (16) with equal spacing is fixedly installed on the upper surface of the storage box (15). A piston plate (17) is installed horizontally at the upper end of the installation cylinder (8), and a supply mechanism is provided below the piston plate (17) to add medicine to the filter cotton (16).

2. The brush plating waste gas suction collection and filtration device according to claim 1, characterized in that: The filter box (3) is rotatably mounted with a limiting roller (11) that abuts against the outer surface of the mounting cylinder (8) at its lower end, and the filter box (3) is rotatably mounted with a driving roller (12) that abuts against the outer surface of the mounting cylinder (8) at its upper end.

3. The brush plating waste gas suction collection and filtration device according to claim 2, characterized in that: The drive roller (12) is driven to rotate by a servo motor (13) fixedly installed on the upper surface of the filter box (3), and a cleaning scraper (14) that contacts the outer surface of the filter screen (9) is fixedly installed on the inner side wall of the filter box (3).

4. The brush plating waste gas suction collection and filtration device according to claim 1, characterized in that: The supply mechanism includes a storage cylinder (22) fixedly installed on the lower surface of the piston plate (17), and a lifting pipe (23) is fixedly installed on the lower surface of the storage cylinder (22), and the lower end of the lifting pipe (23) extends into the storage box (15).

5. The brush plating waste gas suction collection and filtration device according to claim 4, characterized in that: The storage cylinder (22) is fixedly installed with atomizing nozzles (24) arranged at equal intervals on its lower surface, and the atomizing nozzles (24) correspond one-to-one with the filter cotton (16).

6. The brush plating waste gas suction collection and filtration device according to claim 5, characterized in that: A compression plate (18) is fixedly installed on the lower surface of the piston plate (17), and the compression plate (18) corresponds to the filter cotton (16), and the piston plate (17) has a groove structure on its side.

7. The brush plating waste gas suction collection and filtration device according to claim 6, characterized in that: The groove on the side of the piston plate (17) slides in contact with the sealing block (19) fixedly installed on the inner wall of the mounting cylinder (8), and the upper surface of the mounting cylinder (8) is provided with a connecting groove (10) corresponding to the air outlet pipe (7).

8. The brush plating waste gas suction collection and filtration device according to claim 7, characterized in that: A blower airbag (20) is fixedly installed at the middle position of the upper surface of the piston plate (17), and the blower airbag (20) is connected to the storage cylinder (22). A connecting spring (21) is fixedly installed between the upper surface of the piston plate (17) and the inside of the top of the mounting cylinder (8).

9. The brush plating waste gas suction collection and filtration device according to claim 8, characterized in that: A connecting sleeve (25) is fixedly installed at the lower end of the filter cotton (16), and a piston rod (26) is fixedly installed at the upper end of the filter cotton (16).

10. The brush plating waste gas suction collection and filtration device according to claim 9, characterized in that: The piston rod (26) is slidably connected to the inside of the connecting sleeve (25) in a piston-like manner, and the side wall of the connecting sleeve (25) is provided with through holes (27) arranged at equal intervals.

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