CN116292206A - Self-cleaning pneumatic diaphragm pump - Google Patents

Abstract

The invention discloses a self-cleaning pneumatic diaphragm pump which comprises a middle shell, a pneumatic mechanism, a diaphragm mechanism, a communication mechanism and a self-cleaning mechanism, wherein outer shells are arranged on two sides of the middle shell, the middle shell is detachably connected with the outer shells, annular mounting grooves are formed in the side walls of the outer shells, a flow inlet pipe is arranged at the bottom of the outer shells in a communicating manner, a flow outlet pipe is arranged at the top of the outer shells in a communicating manner, the pneumatic mechanism is arranged in the middle shell and is used for transmitting the diaphragm mechanism, and the diaphragm mechanism is arranged between the middle shell and the outer shells. According to the self-cleaning device, the self-cleaning mechanism is arranged, and the supporting rod drives the self-cleaning mechanism when the starting mechanism starts the operation of the diaphragm, so that fluid adhered to the surface of the diaphragm can be automatically cleaned through the cleaning strip which is rotated to be attached to the surface of the rod, a diaphragm pump is not required to be manually detached, further, the labor force is saved, and the service life of the device is prolonged.

Description

Self-cleaning pneumatic diaphragm pump

Technical Field

The invention relates to the field of diaphragm pumps, in particular to a self-cleaning pneumatic diaphragm pump.

Background

Currently, in the industries of chemical industry, petroleum, printing and dyeing, medicine, food, electroplating and the like, pneumatic diaphragm pumps are widely applied to conveying liquids such as petroleum, chemistry and the like, and various characteristics of the mediums require corrosion resistance, abrasion resistance and zero leakage of the pneumatic diaphragm pumps; the pneumatic diaphragm pump is mainly used for conveying toxic and harmful, strong acid, strong alkali, strong corrosion, inflammable and explosive, high viscosity and medium containing particles in the production flow of enterprises such as petroleum, chemical industry, pharmacy, printing and dyeing, electroplating, food, environmental protection and the like. The pneumatic diaphragm pump mainly comprises a transmission part and a diaphragm cylinder head. The transmission part is a driving mechanism for driving the diaphragm to return and drum, and the transmission modes of the driving part comprise mechanical transmission, hydraulic transmission, pneumatic transmission and the like. The pneumatic diaphragm pump cylinder head is mainly characterized by that a diaphragm is used for separating the transferred liquid from working liquid, when the diaphragm is moved toward one side of the driving mechanism, the interior of the pump cylinder is used for sucking liquid by means of negative pressure, and when the diaphragm is moved toward another side, the liquid is discharged.

The invention discloses a Chinese patent with publication number of CN214366651U, relates to the technical field of pneumatic diaphragm pumps, and discloses a pneumatic diaphragm pump device convenient to clean, which comprises a pump body and two cover plates, wherein grooves are formed in the top and the bottom of the pump body, two connecting plates are fixedly connected with the left sides of the cover plates, sliding grooves are formed in the front sides of the connecting plates, shafts are fixedly connected with the inner walls of the grooves, the surfaces of the shafts are movably connected with the inner walls of the sliding grooves respectively, first annular grooves are formed in the inner walls of the cover plates, second annular grooves are formed in the inner walls of the first annular grooves, and the inner walls of the second annular grooves are movably connected with the inner walls of the tooth rings respectively.

However, the above patent suffers from the following disadvantages:

1. the problems that the pneumatic diaphragm pump is complicated to clean and low in working efficiency due to the fact that a plurality of bolts are required to be screwed in the process of disassembling and installing the end cover of the pneumatic diaphragm pump in common use are solved by arranging the cover plate, the pump body, the pull rod and the arc-shaped inclined plate, but the end cover still needs to be disassembled to clean the diaphragm when the diaphragm is cleaned;

2. the existing pneumatic diaphragm pump lacks a component convenient to move, so that the device is inconvenient to move, and the normal installation of the device can be influenced by the random installation and movement structure.

Disclosure of Invention

The invention aims to provide a self-cleaning pneumatic diaphragm pump, which is provided with a self-cleaning mechanism, and can drive the self-cleaning mechanism through a supporting rod when the diaphragm is started to operate by the starting mechanism, so that fluid adhered to the surface of the diaphragm can be automatically cleaned through a cleaning strip on the surface of a rotating attaching rod, the diaphragm pump is not required to be manually disassembled, and further, the labor force is saved, so that the defects in the technology are overcome.

In order to achieve the above object, the present invention provides the following technical solutions: a self-cleaning pneumatic diaphragm pump comprises a middle shell, a pneumatic mechanism, a diaphragm mechanism, a communication mechanism and a self-cleaning mechanism;

the two sides of the middle shell are respectively provided with an outer shell, the middle shell is detachably connected with the outer shells, the side wall of each outer shell is provided with an annular mounting groove, the bottom of each outer shell is communicated with a flow inlet pipe, and the top of each outer shell is communicated with a flow outlet pipe;

the pneumatic mechanism is arranged in the middle shell and is used for driving the diaphragm mechanism;

the diaphragm mechanism is arranged between the middle shell and the outer shell, and is used for dividing the space between the outer shell and the middle shell and controlling the volume change in the outer shell;

the communication mechanism is arranged on the outer side of the middle shell and is used for connecting the device and equipment;

the self-cleaning mechanism is arranged inside the outer shell and is used for cleaning fluid adhered to the surface of the diaphragm.

Preferably, the diaphragm mechanism comprises two diaphragms, the number of the two diaphragms is two, the two diaphragms are respectively arranged in the two outer shell bodies, the outer side of the diaphragm corresponds to the annular mounting groove, one side of the diaphragm is fixedly connected with an outer pressing plate, the other side of the diaphragm is fixedly connected with an inner pressing plate, the side wall of the outer pressing plate is fixedly connected with an abutting shaft, a connecting shaft is fixedly connected between the two inner pressing plates, and the connecting shaft corresponds to the pneumatic mechanism;

the pneumatic mechanism is a pneumatic structure of an existing pneumatic diaphragm pump in the market, the connecting shaft can be driven to move left and right by starting the pneumatic mechanism, and meanwhile, the two ends of the connecting shaft can reciprocally squeeze diaphragms at the two ends, so that the diaphragms deform, and the volume inside the outer shell can change in the deformation process.

Preferably, the communication mechanism comprises a first communication pipe, a second communication pipe, a first one-way ball valve and a second one-way ball valve, wherein two ends of the first communication pipe are detachably connected with two inflow pipes respectively, a feeding pipe is arranged in the middle of the first communication pipe in a communication mode, two ends of the second communication pipe are detachably connected with two outflow pipes respectively, and a discharging pipe is arranged in the middle of the second communication pipe in a communication mode;

the number of the first one-way ball valves is two, the two first one-way ball valves are respectively arranged in the two inflow pipes, the number of the second one-way ball valves is two, and the two second one-way ball valves are respectively arranged in the two outflow pipes;

when the volume in the outer shell is reduced, negative pressure is generated in the outer shell, the first one-way ball valve is opened, the second one-way ball valve is closed, and fluid in the first communication pipe enters the outer shell through the inflow pipe;

when the volume in the outer shell increases, the pressure in the outer shell increases, at this time, the first one-way ball valve is closed and the second one-way ball valve is opened, and at this time, the fluid in the outer shell can enter the second communicating pipe through the outflow pipe.

Preferably, the number of the self-cleaning mechanisms is two, the two self-cleaning mechanisms are respectively arranged in the two outer shell bodies, and each self-cleaning mechanism comprises a flow storage part, a transmission part and a cleaning part.

Preferably, the flow accumulating part comprises a flow accumulating bin, the flow accumulating bin is arranged in the outer shell, a piston bin is arranged in the middle of the flow accumulating bin, a flow passage bin is communicated between the piston bin and the flow accumulating bin, and the flow passage bin is fixedly connected with the inner wall of the outer shell;

the piston bin is internally provided with a piston column in a sliding manner, the bottom of the piston column is provided with a return spring, the top of the return spring is propped against the piston column, and the bottom of the return spring is propped against the piston bin;

the top of the flow storage bin is provided with a first drainage tube and a second drainage tube, the first drainage tube is communicated with the flow storage bin, the number of the first drainage tubes is two, the second drainage tubes are communicated with the flow storage bin, the number of the second drainage tubes is two, the second drainage tubes are communicated with the flow storage bin, and a third one-way ball valve is arranged inside the second drainage tubes;

when the piston column slides into the piston bin under the extrusion, the reset spring is compressed, meanwhile, the pressure in the piston bin is increased, the third one-way ball valve is closed, fluid in the piston bin enters the flow storage bin through the flow passage bin, and the fluid in the flow storage bin is discharged through the first drainage tube;

when the piston column is not pressed any more, the compressed reset spring can squeeze the piston column, so that the piston column slides out of the piston bin, negative pressure can be generated in the piston bin at the moment, meanwhile, the third one-way ball valve is opened, fluid can enter the flow storage bin through the second drainage tube, and meanwhile, the fluid in the flow storage bin can enter the piston bin through the flow passage bin, and therefore the piston bin is filled.

Preferably, the transmission part comprises an annular bin, the annular bin is arranged at the top of the flow storage bin, two sides of the annular bin are respectively and eccentrically communicated with the two first drainage tubes, the top of the annular bin is rotatably provided with a rotating ring, the bottom of the rotating ring is fixedly connected with a plurality of blades, the blades correspond to the inner wall of the annular bin, the inner wall of the annular bin is fixedly connected with a limiting ring, and the limiting ring corresponds to the piston column;

the fluid discharged from the first drainage tube enters the annular bin, and the annular bin can impact the blades, so that the blades and the rotating ring can be driven to rotate.

Preferably, the cleaning component comprises a plurality of connecting rods, the plurality of connecting rods are fixedly connected with the rotating ring, and the plurality of connecting rods are distributed around the center of the rotating ring;

the end part of the connecting rod is fixedly connected with a jointing rod, the jointing rod is arc-shaped and made of elastic plastic materials, the surface of the jointing rod is provided with a cleaning strip, and the cleaning strip corresponds to the surface of the diaphragm;

the rotating ring can drive the laminating pole to rotate through the connecting rod when rotating, when laminating pole surface cleaning strip and diaphragm laminating mutually, drive the cleaning strip through the laminating pole and rotate, can strike off the clearance with the fluid of diaphragm surface adhesion.

Preferably, the bottom of the first communication pipe is fixedly connected with two fixing seats, fixing holes are formed in the surface of each fixing seat, the number of the fixing holes is multiple, the fixing holes are uniformly distributed, one side of each base is hinged with a hinge rod, the middle of each hinge rod is provided with a mounting hole, one side of each hinge rod is provided with a first threaded hole, the other side of each hinge rod is provided with a second threaded hole, the first threaded holes and the second threaded holes are formed in the surface of each fixing seat, the first threaded holes and the second threaded holes are matched with the mounting holes, and moving wheels are rotatably arranged at the ends of the hinge rods;

the device can be conveniently fixed on the supporting surface by arranging the fixing seat, so that the device is convenient to install, the hinge rod can be fixed at the top of the hinge point by inserting the bolt into the installation hole and being in threaded connection with the first threaded hole, and the moving wheel is not contacted with the ground at the moment;

through bolt insertion mounting hole and with second screw hole threaded connection, can fix the pin joint side with the pin joint, remove the wheel and contact with ground this moment to the convenience removes the device.

In the technical scheme, the invention has the technical effects and advantages that:

1. by arranging the self-cleaning mechanism, the self-cleaning mechanism can be driven by the supporting rod when the diaphragm is started to operate by the starting mechanism, so that fluid adhered to the surface of the diaphragm can be automatically cleaned by the cleaning strip on the surface of the rotating attaching rod, a diaphragm pump is not required to be manually disassembled, and further, the manual labor force is saved;

2. through the fixed angle who changes articulated pole, can adjust the position of removing the wheel to can conveniently remove the device when not influencing the device installation.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic diagram of an explosive structure according to the present invention;

FIG. 3 is a schematic view of the outer housing structure of the present invention;

FIG. 4 is a schematic diagram of a diaphragm mechanism according to the present invention;

FIG. 5 is a schematic view of a self-cleaning structure of the present invention;

FIG. 6 is an exploded schematic view of the self-cleaning structure of the present invention;

FIG. 7 is a cross-sectional view of a flow cartridge of the present invention;

fig. 8 is an enlarged view of the part structure of fig. 1 according to the present invention.

Reference numerals illustrate:

1. a middle shell; 11. an outer housing; 12. an annular mounting groove; 13. a flow inlet pipe; 14. a outflow pipe;

2. a pneumatic mechanism;

3. a diaphragm mechanism; 31. a diaphragm; 32. an outer pressure plate; 33. an inner pressure plate; 34. a shaft is abutted; 35. a connecting shaft;

4. a communication mechanism; 41. a first communication pipe; 42. a second communicating pipe; 43. a first one-way ball valve; 44. a second one-way ball valve; 45. a feed pipe; 46. a discharge pipe;

5. a self-cleaning mechanism;

51. a flow accumulating part; 511. a flow storage bin; 512. a piston bin; 513. a runner bin; 514. a piston column; 515. a return spring; 516. a first drainage tube; 517. a second drainage tube;

52. a transmission member; 521. an annular bin; 522. a rotating ring; 523. a blade; 524. limiting device

Ring(s)

53. Cleaning the component; 531. a connecting rod; 532. a bonding rod; 533. cleaning the strip;

6. a fixing seat; 61. a fixing hole; 62. a hinge rod; 63. a mounting hole; 64. a first threaded hole; 65. a second threaded hole; 66. and (5) moving the wheel.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The invention provides a self-cleaning pneumatic diaphragm pump as shown in figures 1-8, which comprises a middle shell 1, a pneumatic mechanism 2, a diaphragm mechanism 3, a communication mechanism 4 and a self-cleaning mechanism 5;

the two sides of the middle shell 1 are respectively provided with an outer shell 11, the middle shell 1 is detachably connected with the outer shells 11, the side wall of each outer shell 11 is provided with an annular mounting groove 12, the bottom of each outer shell 11 is communicated with a flow inlet pipe 13, and the top of each outer shell 11 is communicated with a flow outlet pipe 14;

the pneumatic mechanism 2 is arranged in the middle shell 1, and the pneumatic mechanism 2 is used for driving the diaphragm mechanism 3;

the diaphragm mechanism 3 is arranged between the middle shell 1 and the outer shell 11, and the diaphragm mechanism 3 is used for dividing the space between the outer shell 11 and the middle shell 1 and controlling the volume change inside the outer shell 11;

the communication mechanism 4 is arranged outside the middle shell 1, and the communication mechanism 4 is used for connecting a device and equipment;

the self-cleaning mechanism 5 is arranged inside the outer shell 11, and the self-cleaning mechanism 5 is used for cleaning the fluid adhered on the surface of the diaphragm 31.

Further, in the above technical solution, the diaphragm mechanism 3 includes two diaphragms 31, the number of the diaphragms 31 is set to two, the two diaphragms 31 are respectively disposed in the two outer shells 11, the outer sides of the diaphragms 31 correspond to the annular mounting groove 12, one side of the diaphragms 31 is fixedly connected with an outer pressing plate 32, the other side of the diaphragms 31 is fixedly connected with an inner pressing plate 33, the side wall of the outer pressing plate 32 is fixedly connected with an abutment shaft 34, a connecting shaft 35 is fixedly connected between the two inner pressing plates 33, and the connecting shaft 35 corresponds to the pneumatic mechanism 2.

Further, in the above technical solution, the communication mechanism 4 includes a first communication pipe 41, a second communication pipe 42, a first unidirectional ball valve 43, and a second unidirectional ball valve 44, where two ends of the first communication pipe 41 are detachably connected with the two inflow pipes 13, a feeding pipe 45 is disposed in the middle of the first communication pipe 41, two ends of the second communication pipe 42 are detachably connected with the two outflow pipes 14, and a discharging pipe 46 is disposed in the middle of the second communication pipe 42;

the number of the first one-way ball valves 43 is two, the two first one-way ball valves 43 are respectively arranged in the two inflow pipes 13, the number of the second one-way ball valves 44 is two, and the two second one-way ball valves 44 are respectively arranged in the two outflow pipes 14.

Further, in the above technical solution, the number of the self-cleaning mechanisms 5 is two, the two self-cleaning mechanisms 5 are respectively disposed inside the two outer shells 11, and the self-cleaning mechanism 5 includes a flow accumulating component 51, a transmission component 52 and a cleaning component 53.

Further, in the above technical solution, the flow accumulating component 51 includes a flow accumulating bin 511, the flow accumulating bin 511 is disposed inside the outer casing 11, a piston bin 512 is disposed in the middle of the flow accumulating bin 511, a flow channel bin 513 is disposed between the piston bin 512 and the flow accumulating bin 511 in a communicating manner, and the flow channel bin 513 is fixedly connected with an inner wall of the outer casing 11;

a piston column 514 is slidably arranged in the piston bin 512, a return spring 515 is arranged at the bottom of the piston column, the top of the return spring 515 is propped against the piston column 514, and the bottom of the return spring 515 is propped against the piston bin 512;

the top of the storage bin 511 is provided with a first drainage tube 516 and a second drainage tube 517, the first drainage tube 516 is communicated with the storage bin 511, the number of the first drainage tubes 516 is two, the second drainage tubes 517 are communicated with the storage bin 511, the number of the second drainage tubes 517 is two, the second drainage tubes 517 are communicated with the storage bin 511, and a third one-way ball valve 518 is arranged inside the second drainage tubes 517.

Further, in the above technical solution, the transmission member 52 includes an annular bin 521, the annular bin 521 is disposed at the top of the storage bin 511, two sides of the annular bin 521 are respectively disposed in eccentric communication with the two first drainage tubes 516, a rotating ring 522 is rotatably disposed at the top of the annular bin 521, a plurality of blades 523 are fixedly connected to the bottom of the rotating ring 522, the blades 523 correspond to the inner wall of the annular bin 521, a limiting ring 524 is fixedly connected to the inner wall of the annular bin 521, and the limiting ring 524 corresponds to the piston column 514.

Further, in the above technical solution, the cleaning member 53 includes a plurality of connecting rods 531, where the number of connecting rods 531 is set to be plural, the plurality of connecting rods 531 are fixedly connected to the rotating ring 522, and the plurality of connecting rods 531 are distributed around the center of the rotating ring 522;

the connecting rod 531 tip fixedly connected with laminating pole 532, laminating pole 532 sets up to the arc, laminating pole 532 is made by elastic plastic material, laminating pole 532 surface is equipped with the clearance strip 533, clearance strip 533 is corresponding with diaphragm 31 surface.

Further, two fixing bases 6 are fixedly connected to the bottom of the first communication pipe 41, fixing holes 61 are formed in the surface of the fixing base 6, the number of the fixing holes 61 is multiple, the fixing holes 61 are evenly distributed, a hinge rod 62 is hinged to one side of the base, a mounting hole 63 is formed in the middle of the hinge rod 62, a first threaded hole 64 is formed in one side of the hinge rod 62, a second threaded hole 65 is formed in the other side of the hinge rod 62, the first threaded hole 64 and the second threaded hole 65 are formed in the surface of the fixing base 6, the first threaded hole 64 and the second threaded hole 65 are matched with the mounting hole 63, and a moving wheel 66 is arranged at the end of the hinge rod 62 in a rotating mode.

The working principle of the invention is as follows:

referring to fig. 1-8 of the specification, when the device is in use, the pneumatic mechanism 2 is started to drive the connecting shaft 35 to move left and right, and meanwhile, two ends of the connecting shaft 35 can reciprocally squeeze the diaphragms 31 at two ends, so that the diaphragms 31 deform, the volume inside the outer shell 11 can be changed in the deformation process of the diaphragms 31, and meanwhile, the outer pressing plate 32 can drive the supporting shaft 34 to reciprocally squeeze the piston column 514;

when the piston column 514 is pressed to slide into the piston bin 512, the return spring 515 is compressed, the pressure in the piston bin 512 is increased, the third one-way ball valve 518 is closed, fluid in the piston bin 512 enters the fluid storage bin 511 through the flow passage bin 513, and the fluid in the fluid storage bin 511 is discharged through the first drainage tube 516;

when the piston rod 514 is not pressed any more, the compressed return spring 515 presses the piston rod 514, so that the piston rod slides out of the piston chamber 512, negative pressure is generated in the piston chamber 512, meanwhile, the third one-way ball valve 518 is opened, fluid can enter the storage chamber 511 through the second drainage tube 517, and meanwhile, fluid in the storage chamber 511 can enter the piston chamber 512 through the flow passage chamber 513, so that the piston chamber 512 is filled;

the fluid discharged from the first drainage tube 516 enters the annular bin 521, and the annular bin 521 impacts the blades 523, so that the blades 523 and the rotating ring 522 can be driven to rotate, the rotating ring 522 can drive the attaching rod 532 to rotate through the connecting rod 531 while rotating, when the surface cleaning strip 533 of the attaching rod 532 is attached to the diaphragm 31, the cleaning strip 533 is driven to rotate through the attaching rod 532, and the fluid adhered to the surface of the diaphragm 31 can be scraped and cleaned

Referring to the accompanying drawings 1-8 of the specification, when the device is used, the device can be conveniently fixed on a supporting surface by arranging the fixing seat 6, so that the device is convenient to install, the hinging rod 8 can be fixed on the top of a hinging point by inserting a bolt into the mounting hole 9 and connecting the bolt with the first threaded hole 10 in a threaded manner, and the movable wheel 12 is not contacted with the ground at the moment;

the hinge rod 8 can be fixed on the side of the hinge point by inserting the bolt into the mounting hole 9 and being in threaded connection with the second threaded hole 11, and the moving wheel 12 is in contact with the ground at the moment, so that the device can be conveniently moved.

Standard parts used in the invention can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the details are not described.

Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.

Claims (8)

1. A self-cleaning pneumatic diaphragm pump is characterized in that: comprises a middle shell (1), a pneumatic mechanism (2), a diaphragm mechanism (3), a communication mechanism (4) and a self-cleaning mechanism (5);

the two sides of the middle shell (1) are respectively provided with an outer shell (11), the middle shell (1) is detachably connected with the outer shells (11), annular mounting grooves (12) are formed in the side walls of the outer shells (11), inflow pipes (13) are communicated with the bottoms of the outer shells (11), and outflow pipes (14) are communicated with the tops of the outer shells (11);

the pneumatic mechanism (2) is arranged in the middle shell (1), and the pneumatic mechanism (2) is used for driving the diaphragm mechanism (3);

the diaphragm mechanism (3) is arranged between the middle shell (1) and the outer shell (11), and the diaphragm mechanism (3) is used for dividing the space between the outer shell (11) and the middle shell (1) and controlling the volume change inside the outer shell (11);

the communication mechanism (4) is arranged at the outer side of the middle shell (1), and the communication mechanism (4) is used for connecting a device and equipment;

the self-cleaning mechanism (5) is arranged inside the outer shell (11), and the self-cleaning mechanism (5) is used for cleaning fluid adhered to the surface of the diaphragm (31).

2. A self-cleaning pneumatic diaphragm pump according to claim 1, wherein: the diaphragm mechanism (3) comprises diaphragms (31), the number of the diaphragms (31) is two, the two diaphragms (31) are respectively arranged inside the two outer shells (11), the outer sides of the diaphragms (31) are corresponding to the annular mounting grooves (12), one side of each diaphragm (31) is fixedly connected with an outer pressing plate (32), the other side of each diaphragm (31) is fixedly connected with an inner pressing plate (33), the side walls of the outer pressing plates (32) are fixedly connected with supporting shafts (34), connecting shafts (35) are fixedly connected between the inner pressing plates (33), and the connecting shafts (35) correspond to the pneumatic mechanism (2).

3. A self-cleaning pneumatic diaphragm pump according to claim 1, wherein: the communication mechanism (4) comprises a first communication pipe (41), a second communication pipe (42), a first one-way ball valve (43) and a second one-way ball valve (44), wherein two ends of the first communication pipe (41) are detachably connected with two inflow pipes (13) respectively, a feed pipe (45) is arranged in the middle of the first communication pipe (41) in a communicating way, two ends of the second communication pipe (42) are detachably connected with two outflow pipes (14) respectively, and a discharge pipe (46) is arranged in the middle of the second communication pipe (42) in a communicating way;

the number of the first one-way ball valves (43) is two, the two first one-way ball valves (43) are respectively arranged in the two inflow pipes (13), the number of the second one-way ball valves (44) is two, and the two second one-way ball valves (44) are respectively arranged in the two outflow pipes (14).

4. A self-cleaning pneumatic diaphragm pump according to claim 1, wherein: the number of the self-cleaning mechanisms (5) is two, the two self-cleaning mechanisms (5) are respectively arranged inside the two outer shells (11), and the self-cleaning mechanisms (5) comprise a flow storage part (51), a transmission part (52) and a cleaning part (53).

5. A self-cleaning pneumatic diaphragm pump according to claim 4, wherein: the flow accumulating part (51) comprises a flow accumulating bin (511), the flow accumulating bin (511) is arranged inside the outer shell (11), a piston bin (512) is arranged in the middle of the flow accumulating bin (511), a flow passage bin (513) is communicated between the piston bin (512) and the flow accumulating bin (511), and the flow passage bin (513) is fixedly connected with the inner wall of the outer shell (11);

a piston column (514) is slidably arranged in the piston bin (512), a return spring (515) is arranged at the bottom of the piston, the top of the return spring (515) is propped against the piston column (514), and the bottom of the return spring (515) is propped against the piston bin (512);

the utility model discloses a drainage device for storing up and transporting water, including storage bin (511), drainage tube (511), first drainage tube (516), second drainage tube (517), first drainage tube (516) and storage bin (511) intercommunication setting, first drainage tube (516) quantity is established to two, second drainage tube (517) and storage bin (511) intercommunication setting, second drainage tube (517) inside is equipped with third one-way ball valve (518).

6. A self-cleaning pneumatic diaphragm pump according to claim 4, wherein: the transmission part (52) comprises an annular bin (521), the annular bin (521) is arranged at the top of the flow storage bin (511), two sides of the annular bin (521) are respectively and eccentrically communicated with the two first drainage tubes (516), a rotating ring (522) is rotatably arranged at the top of the annular bin (521), a plurality of blades (523) are fixedly connected to the bottom of the rotating ring (522), the blades (523) correspond to the inner wall of the annular bin (521), a limiting ring (524) is fixedly connected to the inner wall of the annular bin (521), and the limiting ring (524) corresponds to the piston column (514).

7. A self-cleaning pneumatic diaphragm pump according to claim 4, wherein: the cleaning component (53) comprises a plurality of connecting rods (531), the connecting rods (531) are fixedly connected with the rotating ring (522), and the connecting rods (531) are distributed around the center of the rotating ring (522);

connecting rod (531) tip fixedly connected with laminating pole (532), laminating pole (532) are established to the arc, laminating pole (532) are made by elastic plastic material, laminating pole (532) surface is equipped with clearance strip (533), clearance strip (533) is corresponding with diaphragm (31) surface.

8. A self-cleaning pneumatic diaphragm pump according to claim 4, wherein: the utility model discloses a fixed seat, including fixing base (6), fixed seat (6), connecting rod (62) and connecting rod (62), two fixing bases (6) are fixedly connected with bottom, fixed hole (61) have been seted up to fixing base (6) surface, fixed hole (61) quantity is established to a plurality of, a plurality of fixed hole (61) evenly distributed, base one side articulates and is provided with articulated rod (62), mounting hole (63) have been seted up at articulated rod (62) middle part, articulated rod (62) one side is equipped with first screw hole (64), articulated rod (62) opposite side is equipped with second screw hole (65), first screw hole (64) and second screw hole (65) all set up in fixing base (6) surface, first screw hole (64) and second screw hole (65) all match with mounting hole (63), articulated rod (62) tip rotation is provided with removal wheel (66).

Images