Large-flow pneumatic diaphragm pump with filtering function

Abstract

The invention relates to the technical field of pneumatic diaphragm pumps, and discloses a large-flow pneumatic diaphragm pump with a filtering function, the large-flow pneumatic diaphragm pump comprises a pneumatic diaphragm pump body, the pneumatic diaphragm pump body is communicated with a filtering mechanism, and a damping mechanism is arranged on the surface of the pneumatic diaphragm pump body; the filtering mechanism comprises a filtering assembly and a cleaning assembly; the cleaning assembly is located on the surface of the filtering assembly. Through the filtering mechanism and the filtering assembly, liquid entering the filtering tank is filtered for the first time through a filtering net plate, the liquid is filtered for the second time through a filtering cylinder, it is avoided that a diaphragm is damaged by impurities in the liquid, and the cleaning assembly uses a second rotating rod to drive a scraper to rotate to clean the impurities attached to the filtering net plate; and meanwhile, when the gear ring drives the filter cartridge to rotate, a first cleaning brush and a second cleaning brush clean impurities attached to the surface of the filter cartridge, the situation that the impurities block the filter screen plate and filter holes of the filter cartridge and affect the filtering effect is avoided, and the filtering effect of the large-flow pneumatic diaphragm pump is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pneumatic diaphragm pumps, in particular to a large-flow pneumatic diaphragm pump with a filtering function. Background Art

[0002] The pneumatic diaphragm pump is a new type of conveying machinery that uses compressed air as a power source. It is suitable for various corrosive liquids, liquids with particles, high viscosity, volatile, flammable, and highly toxic liquids. The pneumatic diaphragm pump has a variety of material options, including engineering plastics, aluminum alloys, stainless steel, cast iron, etc., which enables it to work in various harsh environments. The design principle of this pump is to use compressed air to push the diaphragm back and forth to do work, thereby achieving the purpose of conveying various media. The structure of the pneumatic diaphragm pump includes a gas distribution valve and a connecting shaft. Through the synergistic effect of these components, continuous suction and discharge of liquids are achieved.

[0003] The existing pneumatic diaphragm pumps will transport sewage or other liquids with impurities when they are actually used, but because the pneumatic diaphragm pumps do not have the function of removing impurities, the impurities are likely to damage the diaphragm. Therefore, a large flow pneumatic diaphragm pump with a filtering function is proposed. Summary of the invention

[0004] The object of the present invention is to provide a large flow pneumatic diaphragm pump with filtering function to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a large flow pneumatic diaphragm pump with filtering function, comprising a pneumatic diaphragm pump body, the pneumatic diaphragm pump body is connected to a filtering mechanism, and a shock absorbing mechanism is arranged on the surface of the pneumatic diaphragm pump body; The filtering mechanism comprises a filtering component and a cleaning component; The cleaning component is located on the surface of the filter component; The shock absorbing mechanism comprises a connecting component and a shock absorbing component; The shock absorbing component is located on the surface of the connecting component.

[0006] Preferably, the filter assembly includes a filter tank, which is provided with a filter mesh plate and a filter cartridge inside the filter tank, the filter cartridge is located below the filter mesh plate, the side surface of the filter mesh plate is fixedly connected to the inner side surface of the filter tank, a feed pipe is provided above the filter mesh plate, the top end surface of the feed pipe is fixedly penetrated through the inner top surface of the filter tank and extends to the top of the filter tank, two discharge pipes are provided inside the filter cartridge, the outer end surface of the discharge pipe penetrates through the inner side surface of the filter cartridge and the inner side surface of the filter tank and extends to the outside of the filter tank, the surface of the discharge pipe is rotatably connected to the inner wall of the filter cartridge through a bearing seat, the surface of the discharge pipe is fixedly connected to the inside of the filter tank, the filter mesh plate and the filter cartridge can filter out impurities in the water.

[0007] Preferably, the cleaning assembly includes a scraper, a first cleaning brush and a second cleaning brush, the right side surface of the filter tank is fixedly connected to a motor, the left end surface of the motor output rod penetrates the surface of the filter tank and extends to the inside of the filter tank, the left end surface of the motor output rod is fixedly connected to a first rotating rod, a first bevel gear and a gear are fixedly sleeved on the surface of the first rotating rod, a second rotating rod is arranged above the first rotating rod, a second bevel gear is fixedly sleeved on the surface of the second rotating rod, the inclined surface of the first bevel gear and the inclined surface of the second bevel gear are meshed, the top end surface of the second rotating rod penetrates the bottom surface of the filter screen plate and extends above the filter screen plate, the surface of the second rotating rod is connected to the inner wall of the filter screen plate and the top surface of the inner part of the filter tank through a bearing seat The filter element is connected in a rotating manner, and the surface of the second rotating rod is fixedly connected with a connecting plate, the bottom surface of the connecting plate is fixedly connected to the top surface of the scraper, the bottom surface of the scraper is slidably connected to the top surface of the filter screen plate, the surface of the filter cartridge is fixedly sleeved with a gear ring, the side surface of the gear is meshed with the tooth surface of the gear ring, a support plate is provided on the rear side of the filter cartridge, the bottom surface of the support plate is fixedly connected to the bottom surface of the inner part of the filter tank, the first cleaning brush and the second cleaning brush are respectively located on the left and right sides of the gear ring, the rear side surface of the first cleaning brush and the rear side surface of the second cleaning brush are both fixedly connected to the front side surface of the support plate, the front side surface of the first cleaning brush and the front side surface of the second cleaning brush are both slidably connected to the surface of the filter cartridge, and the scraper is used to clean impurities attached to the filter screen plate.

[0008] Preferably, the two discharge pipes are configured as hard pipes, and the two discharge pipes are symmetrically arranged, so that the filter cartridge is supported by the discharge pipes.

[0009] Preferably, a drain groove is provided on the top surface of the filter screen plate, and drain frames are provided on the left and right sides of the filter tank. The inner end surface of the drain frame is fixedly passed through the surface of the filter tank and extends to the inside of the drain groove. A baffle is hinged on the outer end surface of the drain frame, and impurities cleaned off the filter screen plate are discharged into the drain frame through the drain groove.

[0010] Preferably, a collection frame is provided below the filter tank, the top surface of the collection frame is fixed through the bottom surface of the filter tank and extends to the inside of the filter tank, the collection frame is located below the filter cylinder, and a sewage door is hinged on the bottom surface of the collection frame, and the impurities cleaned from the filter tank can be collected through the collection frame.

[0011] Preferably, a first inclined plate and a second inclined plate are provided inside the collection frame, the first inclined plate and the second inclined plate are staggered up and down, and the first inclined plate and the second inclined plate are symmetrically arranged, the left side of the first inclined plate and the right side of the second inclined plate are respectively fixedly connected to the left and right sides inside the collection frame, and the first inclined plate and the second inclined plate can reduce the backflow of cleaned impurities into the filter tank.

[0012] Preferably, the connecting assembly includes two support blocks, the two support blocks are symmetrically arranged, the inner walls of the two support blocks are threadedly connected to the inner wall of the pneumatic diaphragm pump body by bolts, the right side of the support block is fixedly connected to a fixing plate, a bottom plate is arranged under the fixing plate, the top surface of the bottom plate is provided with two sliding grooves, a push block is arranged inside the sliding groove, the bottom surface of the push block is slidably connected to the bottom surface of the inner bottom surface of the sliding groove, the top surface of the push block is hinged with a push rod, the top end surface of the push rod is hinged to the bottom surface of the fixing plate, and the bottom surface of the bottom plate is fixedly connected with a plurality of protrusions, and the protrusions can be used to increase the contact area between the bottom plate and the placement location, so that the structural stability of the entire device when placed is stronger.

[0013] Preferably, the shock absorbing assembly includes a first spring and a damper, the bottom surface of the damper and the top surface of the first spring are both fixedly connected to the top surface of the bottom plate, the top end surface of the damper output rod and the top end surface of the first spring are both fixedly connected to the bottom surface of the fixed plate, the first spring is sleeved on the surface of the damper, a sliding rod is provided on the rear side of the push block, the front end surface of the sliding rod slides through the rear side surface of the push block and extends to the front side of the push block, the front and rear end surfaces of the sliding rod are respectively fixedly connected to the inner wall of the slide groove, the surface of the sliding rod is sleeved with a second spring, the front and rear end surfaces of the second spring are respectively fixedly connected to the rear side surface of the push block and the inner wall of the slide groove, the second spring, the first spring force and the damping property of the damper itself have a shock absorbing effect on the fixed plate, thereby reducing the vibration of the pneumatic diaphragm pump.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The large-flow pneumatic diaphragm pump with filtering function uses a filtering mechanism. The filtering component uses a filter screen to perform the first filtration on the liquid entering the filter tank, and the filter cartridge performs the second filtration on the liquid to prevent the impurities in the liquid from damaging the diaphragm. The cleaning component uses a second rotating rod to drive the scraper to rotate to clean the impurities attached to the filter screen. At the same time, when the ring gear drives the filter cartridge to rotate, the first cleaning brush and the second cleaning brush clean the impurities attached to the surface of the filter cartridge to prevent the impurities from clogging the filter screen and the filter holes of the filter cartridge and affecting the filtering effect, thereby improving the filtering effect of the large-flow pneumatic diaphragm pump.

[0015] 2. The large-flow pneumatic diaphragm pump with filtering function can collect and discharge impurities cleaned from the surface of the filter screen plate and the filter cartridge through the sewage trough, sewage frame, baffle, collection frame, first inclined plate, second inclined plate and sewage door. At the same time, the first inclined plate and the second inclined plate can reduce the backflow of impurities collected by the collection frame into the filter tank.

[0016] 3. The large-flow pneumatic diaphragm pump with filtering function uses a shock-absorbing mechanism and a connecting assembly to fix the support block on the pneumatic diaphragm pump body using bolts. The shock-absorbing assembly uses the action of the first spring and the second spring and the damping property of the damper itself to achieve a shock-absorbing effect on the fixed plate, thereby achieving a shock-absorbing effect on the pneumatic diaphragm pump body and improving the stability of the large-flow pneumatic diaphragm pump.

[0017] 4. The large-flow pneumatic diaphragm pump with filtering function can increase the contact area between the bottom plate and the installation location through the convex block, so that the structural stability of the pneumatic diaphragm pump body is stronger when it is installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall main stereoscopic diagram of the present invention; Figure 2 This is a front perspective view of the filter tank of the present invention; Figure 3 This is a front cutaway perspective view of the filter tank of the present invention; Figure 4 This is a front perspective view of the filter cartridge of the present invention; Figure 5 It is a top-side sectional stereoscopic view of the filter cartridge of the present invention; Figure 6 This is a front perspective view of the filter screen plate of the present invention; Figure 7 It is a right side stereoscopic view of the damper of the present invention; Figure 8 It is a right side sectional stereoscopic view of the slide bar of the present invention.

[0019] In the figure: pneumatic diaphragm pump body 1, filtering mechanism 2, filter tank 201, feed pipe 202, filter screen plate 203, sewage frame 204, baffle 205, motor 206, first rotating rod 207, first bevel gear 208, second rotating rod 209, second bevel gear 210, filter cartridge 211, discharge pipe 213, gear ring 214, gear 215, support plate 216, first cleaning brush 217, second cleaning brush 218, collecting frame 219, first inclined plate 220, second inclined plate 221, sewage door 222, connecting plate 223, scraper 224, shock absorbing mechanism 3, support block 301, fixing plate 302, bottom plate 303, damper 304, first spring 305, push rod 306, push block 307, slide bar 308, second spring 309, protrusion 310. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0021] See also Figure 1 - Figure 8 The present invention provides a technical solution: a large flow pneumatic diaphragm pump with filtering function, comprising a pneumatic diaphragm pump body 1, the pneumatic diaphragm pump body 1 is connected with a filtering mechanism 2, and a shock absorbing mechanism 3 is arranged on the surface of the pneumatic diaphragm pump body 1; The filtering mechanism 2 includes a filtering component and a cleaning component; The cleaning component is located on the surface of the filter component; The filter assembly includes a filter tank 201, wherein a filter screen plate 203 and a filter cartridge 211 are arranged inside the filter tank 201, the filter cartridge 211 is located below the filter screen plate 203, the side of the filter screen plate 203 is fixedly connected to the inner side of the filter tank 201, a feed pipe 202 is arranged above the filter screen plate 203, the top end surface of the feed pipe 202 is fixedly penetrated through the inner top surface of the filter tank 202 and extends to the top of the filter tank 202, two discharge pipes 213 are arranged inside the filter cartridge 211, the outer end surface of the discharge pipe 213 penetrates through the inner side surface of the filter cartridge 211 and the inner side surface of the filter tank 201 and extends to the outside of the filter tank 201, the surface of the discharge pipe 213 is rotatably connected to the inner wall of the filter cartridge 211 through a bearing seat, and the surface of the discharge pipe 213 is fixedly connected to the inside of the filter tank 201, the filter assembly uses the filter screen plate 203 to perform the first filtration on the liquid entering the filter tank 201, and the filter cartridge 211 performs the second filtration on the liquid to prevent impurities in the liquid from damaging the diaphragm.

[0022] The cleaning assembly includes a scraper 224, a first cleaning brush 217 and a second cleaning brush 218. The right side of the filter tank 201 is fixedly connected to a motor 206. The left end face of the output rod of the motor 206 penetrates the surface of the filter tank 201 and extends to the inside of the filter tank 201. The left end face of the output rod of the motor 206 is fixedly connected to a first rotating rod 207. The surface of the first rotating rod 207 is fixedly sleeved with a first bevel gear 208 and a gear 215. A second rotating rod 209 is arranged above the first rotating rod 207. The surface of the second rotating rod 209 is fixedly sleeved with a first bevel gear 208 and a gear 215. The fixed sleeve is provided with a second bevel gear 210, the inclined surface of the first bevel gear 208 is meshed with the inclined surface of the second bevel gear 210, the top surface of the second rotating rod 209 penetrates the bottom surface of the filter screen plate 203 and extends to the top of the filter screen plate 203, the surface of the second rotating rod 209 is rotatably connected to the inner wall of the filter screen plate 203 and the top surface of the filter tank 201 through the bearing seat, the surface of the second rotating rod 209 is fixedly connected to a connecting plate 223, the bottom surface of the connecting plate 223 is fixedly connected to the top surface of the scraper 224, and the bottom surface of the scraper 224 is fixedly connected to the filter screen plate 203 The top surface is slidably connected, a gear ring 214 is fixedly sleeved on the surface of the filter cartridge 211, and the side of the gear 215 is meshed with the tooth surface of the gear ring 214. A support plate 216 is provided on the rear side of the filter cartridge 211, and the bottom surface of the support plate 216 is fixedly connected to the bottom surface of the filter tank 201. The first cleaning brush 217 and the second cleaning brush 218 are respectively located on the left and right sides of the gear ring 214, and the rear side of the first cleaning brush 217 and the rear side of the second cleaning brush 218 are fixedly connected to the front side of the support plate 216. The front side surfaces of the brush 218 are slidably connected to the surface of the filter cartridge 211. The cleaning assembly utilizes the second rotating rod 209 to drive the scraper 224 to rotate to clean the impurities attached to the filter screen plate 203. At the same time, when the ring gear 214 drives the filter cartridge 211 to rotate, the first cleaning brush 217 and the second cleaning brush 218 clean the impurities attached to the surface of the filter cartridge 211 to prevent the impurities from clogging the filter holes of the filter screen plate 203 and the filter cartridge 211 and affecting the filtering effect, thereby improving the filtering effect of the large-flow pneumatic diaphragm pump.

[0023] The two discharge pipes 213 are configured as hard pipes, and the two discharge pipes 213 are symmetrically arranged.

[0024] A drain groove is formed on the top surface of the filter screen plate 203 , and drain frames 204 are provided on the left and right sides of the filter tank 201 . The inner end surface of the drain frame 204 is fixedly passed through the surface of the filter tank 201 and extends to the inside of the drain groove. A baffle 205 is hinged on the outer end surface of the drain frame 204 .

[0025] A collecting frame 219 is provided below the filter tank 201. The top surface of the collecting frame 219 is fixedly passed through the bottom surface of the filter tank 201 and extends to the inside of the filter tank 201. The collecting frame 219 is located below the filter cartridge 211. A sewage discharge door 222 is hingedly connected to the bottom surface of the collecting frame 219. A first inclined plate 220 and a second inclined plate 221 are provided inside the collecting frame 219. The first inclined plate 220 and the second inclined plate 221 are staggered up and down, and the first inclined plate 220 and the second inclined plate 221 are symmetrically arranged. The left side surface of the filter screen 203 and the right side surface of the second inclined plate 221 are fixedly connected to the left and right sides of the collecting frame 219 respectively. The impurities cleaned from the surfaces of the filter screen 203 and the filter cartridge 211 can be collected and discharged through the sewage trough, the sewage frame 204, the baffle 205, the collecting frame 219, the first inclined plate 220, the second inclined plate 221 and the sewage door 222. At the same time, the first inclined plate 220 and the second inclined plate 221 can reduce the backflow of impurities collected by the collecting frame 219 into the filter tank 201. Embodiment 2

[0026] On the basis of the first embodiment, a preferred embodiment of a large flow pneumatic diaphragm pump with filtering function provided by the present invention is as follows Figure 1 , Figure 7 and Figure 8 As shown: the shock absorbing mechanism 3 includes a connecting component and a shock absorbing component; The shock absorbing component is located on the surface of the connecting component; The connecting assembly includes two supporting blocks 301, which are symmetrically arranged. The inner walls of the two supporting blocks 301 are threadedly connected to the inner wall of the pneumatic diaphragm pump body 1 through bolts. A fixing plate 302 is fixedly connected to the right side of the supporting block 301. A bottom plate 303 is arranged below the fixing plate 302. Two slide grooves are formed through the top surface of the bottom plate 303. A push block 307 is arranged inside the slide groove. The bottom surface of the push block 307 is slidably connected to the bottom surface of the slide groove. A push rod 306 is hinged on the top surface of the push block 307. The top surface of the push rod 306 is hinged to the bottom surface of the fixing plate 302. The connecting assembly uses bolts to install and fix the supporting block 301 on the pneumatic diaphragm pump body 1; A plurality of protrusions 310 are fixedly connected to the bottom surface of the bottom plate 303 . The protrusions 310 can increase the contact area between the bottom plate 303 and the placement location, so that the pneumatic diaphragm pump body 1 has stronger structural stability when placed.

[0027] The shock absorbing assembly includes a first spring 305 and a damper 304. The bottom surface of the damper 304 and the top surface of the first spring 305 are both fixedly connected to the top surface of the bottom plate 303. The top surface of the output rod of the damper 304 and the top surface of the first spring 305 are both fixedly connected to the bottom surface of the fixed plate 302. The first spring 305 is sleeved on the surface of the damper 304. A sliding rod 308 is provided at the rear side of the push block 307. The front end surface of the sliding rod 308 slides through the rear side surface of the push block 307 and extends to the front side of the push block 307. The front and rear end faces of the rod 308 are respectively fixedly connected to the inner wall of the slide groove, and a second spring 309 is sleeved on the surface of the slide rod 308. The front and rear end faces of the second spring 309 are respectively fixedly connected to the rear side surface of the push block 307 and the inner wall of the slide groove. The shock absorbing assembly utilizes the action force of the first spring 305 and the second spring 309 and the damping property of the damper 304 itself to achieve a shock absorbing effect on the fixed plate 302, thereby achieving a shock absorbing effect on the pneumatic diaphragm pump body 1 and improving the stability of the large-flow pneumatic diaphragm pump.

[0028] When in use, liquid enters the filter tank 201 through the feed pipe 202, the filter screen plate 203 filters the liquid, impurities adhere to the filter screen plate 203, the motor 206 is turned on, and the output rod of the motor 206 drives the connected first rotating rod 207 to rotate, so that the first rotating rod 207 drives the connected first bevel gear 208 and gear 215 to rotate, and the second rotating rod 209 is rotated through the meshing transmission of the first bevel gear 208 and the second bevel gear 210, and the second rotating rod 209 drives the connecting plate 223 and the scraper 224 to rotate, and the scraper 224 cleans the impurities attached to the filter screen plate 203 into the sewage trough, and the impurities enter the sewage frame 204 through the sewage trough, and the baffle 205 is opened to discharge the impurities; the liquid after the first filtration enters the discharge pipe 213 after the secondary filtration of the filter cylinder 211, and the gear 205 rotates to drive the gear ring 214 to rotate, so that the filter cylinder 211 rotates, and the filter cylinder 211 rotates with the first A cleaning brush 217 is in contact with a second cleaning brush 218, so that the first cleaning brush 217 and the second cleaning brush 218 clean the impurities attached to the filter cartridge 211, and the cleaned impurities pass through the first inclined plate 220 and the second inclined plate 211 and fall on the bottom of the collecting frame 219. Since the impurities of the secondary filtration are less, when the pneumatic diaphragm pump body 1 is closed, the sewage discharge door 222 is opened to clean the collected impurities in the collecting frame 219; when the pneumatic diaphragm pump body 1 is working, vibration will be generated, so that the support block 301 drives the fixed plate 302 to vibrate, and the fixed plate 302 squeezes the damper 304, the first spring 305 and the push rod 306, and the push rod 306 pushes the push block 307 to slide on the slide rod 308, so that the push block 307 squeezes the second spring 309, and the first spring 305, the second spring 309 and the damping property of the damper 304 itself have a shock absorbing effect on the fixed plate 302, thereby reducing the vibration of the pneumatic diaphragm pump body 1.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large flow pneumatic diaphragm pump with filtering function, comprising a pneumatic diaphragm pump body (1), characterized in that: The pneumatic diaphragm pump body (1) is connected to a filtering mechanism (2), and a shock absorbing mechanism (3) is provided on the surface of the pneumatic diaphragm pump body (1); The filtering mechanism (2) comprises a filtering component and a cleaning component; The cleaning component is located on the surface of the filter component; The shock absorbing mechanism (3) comprises a connecting component and a shock absorbing component; The shock absorbing component is located on the surface of the connecting component.

2. A large flow pneumatic diaphragm pump with filtering function according to claim 1, characterized in that: The filter assembly comprises a filter tank (201), wherein a filter screen plate (203) and a filter cartridge (211) are arranged inside the filter tank (201), wherein the filter cartridge (211) is located below the filter screen plate (203), wherein the side surface of the filter screen plate (203) is fixedly connected to the side surface inside the filter tank (201), wherein a feed pipe (202) is arranged above the filter screen plate (203), wherein the top surface of the feed pipe (202) is fixedly penetrated through the top surface inside the filter tank (202) and extends to the top of the filter tank (202), wherein two discharge pipes (213) are arranged inside the filter cartridge (211), wherein the outer end surface of the discharge pipe (213) penetrates through the inner side surface of the filter cartridge (211) and the inner side surface of the filter tank (201) and extends to the outside of the filter tank (201), wherein the surface of the discharge pipe (213) is rotatably connected to the inner wall of the filter cartridge (211) via a bearing seat, and wherein the surface of the discharge pipe (213) is fixedly connected to the inside of the filter tank (201).

3. A large flow pneumatic diaphragm pump with filtering function according to claim 2, characterized in that: The cleaning assembly comprises a scraper (224), a first cleaning brush (217) and a second cleaning brush (218); the right side surface of the filter tank (201) is fixedly connected to a motor (206); the left end surface of an output rod of the motor (206) penetrates the surface of the filter tank (201) and extends into the interior of the filter tank (201); the left end surface of the output rod of the motor (206) is fixedly connected to a first rotating rod (207); a first bevel gear (208) and a gear (218) are fixedly sleeved on the surface of the first rotating rod (207) 215), a second rotating rod (209) is arranged above the first rotating rod (207), a second bevel gear (210) is fixedly sleeved on the surface of the second rotating rod (209), the inclined surface of the first bevel gear (208) is meshed with the inclined surface of the second bevel gear (210), the top end surface of the second rotating rod (209) passes through the bottom surface of the filter screen plate (203) and extends to the top of the filter screen plate (203), and the surface of the second rotating rod (209) is connected to the inner wall of the filter screen plate (203) through the bearing seat. , the filter tank (201) is rotatably connected to the internal top surface, the second rotating rod (209) is fixedly connected to a connecting plate (223) on the surface, the bottom surface of the connecting plate (223) is fixedly connected to the top surface of the scraper (224), the bottom surface of the scraper (224) is slidably connected to the top surface of the filter screen plate (203), the surface of the filter cartridge (211) is fixedly sleeved with a gear ring (214), the side surface of the gear (215) is meshed with the tooth surface of the gear ring (214), and the rear side of the filter cartridge (211) is provided with a support The support plate (216) has a bottom surface fixedly connected to the inner bottom surface of the filter tank (201); the first cleaning brush (217) and the second cleaning brush (218) are respectively located on the left and right sides of the gear ring (214); the rear side surface of the first cleaning brush (217) and the rear side surface of the second cleaning brush (218) are both fixedly connected to the front side surface of the support plate (216); and the front side surface of the first cleaning brush (217) and the front side surface of the second cleaning brush (218) are both slidably connected to the surface of the filter cartridge (211).

4. A large flow pneumatic diaphragm pump with filtering function according to claim 2, characterized in that: The two discharge pipes (213) are configured as hard pipes, and the two discharge pipes (213) are symmetrically arranged.

5. The large flow pneumatic diaphragm pump with filtering function according to claim 3, characterized in that: A drainage groove is provided through the top surface of the filter screen plate (203); drainage frames (204) are provided on the left and right sides of the filter tank (201); the inner end surface of the drainage frame (204) is fixedly passed through the surface of the filter tank (201) and extends into the drainage groove; and a baffle (205) is hingedly connected to the outer end surface of the drainage frame (204).

6. A large flow pneumatic diaphragm pump with filtering function according to claim 3, characterized in that: A collection frame (219) is provided below the filter tank (201); the top surface of the collection frame (219) is fixedly connected through the bottom surface of the filter tank (201) and extends into the interior of the filter tank (201); the collection frame (219) is located below the filter cartridge (211); and a sewage discharge door (222) is hingedly connected to the bottom surface of the collection frame (219).

7. A large flow pneumatic diaphragm pump with filtering function according to claim 6, characterized in that: A first inclined plate (220) and a second inclined plate (221) are arranged inside the collection frame (219); the first inclined plate (220) and the second inclined plate (221) are arranged alternately up and down, and the first inclined plate (220) and the second inclined plate (221) are arranged symmetrically; the left side surface of the first inclined plate (220) and the right side surface of the second inclined plate (221) are respectively fixedly connected to the left and right side surfaces inside the collection frame (219).

8. The large flow pneumatic diaphragm pump with filtering function according to claim 1, characterized in that: The connection assembly comprises two support blocks (301), the two support blocks (301) are symmetrically arranged, the inner walls of the two support blocks (301) are threadedly connected to the inner wall of the pneumatic diaphragm pump body (1) through bolts, the right side of the support block (301) is fixedly connected to a fixed plate (302), a bottom plate (303) is arranged below the fixed plate (302), the top surface of the bottom plate (303) is provided with two sliding grooves, a push block (307) is arranged inside the sliding groove, the bottom surface of the push block (307) is slidably connected to the bottom surface of the sliding groove, the top surface of the push block (307) is hinged to a push rod (306), the top end surface of the push rod (306) is hinged to the bottom surface of the fixed plate (302), and the bottom surface of the bottom plate (303) is fixedly connected to a plurality of protrusions (310).

9. A large flow pneumatic diaphragm pump with filtering function according to claim 8, characterized in that: The shock absorbing assembly comprises a first spring (305) and a damper (304); the bottom surface of the damper (304) and the top surface of the first spring (305) are both fixedly connected to the top surface of the bottom plate (303); the top surface of the output rod of the damper (304) and the top surface of the first spring (305) are both fixedly connected to the bottom surface of the fixed plate (302); the first spring (305) is sleeved on the surface of the damper (304); a sliding rod (308) is arranged on the rear side of the push block (307); the front end surface of the sliding rod (308) slides through the rear side surface of the push block (307) and extends to the front side of the push block (307); the front and rear end surfaces of the sliding rod (308) are respectively fixedly connected to the inner wall of the slide groove; the surface of the sliding rod (308) is sleeved with a second spring (309); the front and rear end surfaces of the second spring (309) are respectively fixedly connected to the rear side surface of the push block (307) and the inner wall of the slide groove.

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