Pneumatic diaphragm pump convenient to clean

Abstract

The utility model relates to the technical field of pneumatic diaphragm pumps, and discloses a pneumatic diaphragm pump convenient to clean, which comprises a pump body, diaphragm sheets are arranged on two sides of the pump body, storage chambers are arranged on two sides of the pump body, a sleeve is slidably connected to the middle of one side of each storage chamber, an axial seal is arranged between each sleeve and the corresponding storage chamber, and the axial seal is connected with the pump body. An electric push rod for driving the sleeve to move is arranged on one side of the storage chamber, a supporting shaft is rotationally connected to the interior of the sleeve, and a telescopic rod of the electric push rod is connected with a motor for driving the supporting shaft to rotate; the sleeve is driven by the electric push rod to enable the supporting shaft to move horizontally, the cleaning disc can be attached to the diaphragm piece, the supporting shaft is driven by the motor to drive the cleaning disc to rotate, the surface of the diaphragm piece can be cleaned, manual operation is not needed, manpower and time are saved, the sleeve is pulled by the electric push rod to reset, and the cleaning disc can be stored in the storage chamber.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic diaphragm pumps, in particular to a pneumatic diaphragm pump which is easy to clean. Background Art

[0002] Pneumatic diaphragm pump is a new type of conveying machinery and the most innovative type of pump in China. It uses compressed gas as its power source and can pump out all kinds of corrosive liquids, liquids with particles, high viscosity, volatile, flammable and highly toxic liquids. Pneumatic diaphragm pumps are made of four materials: plastic, aluminum alloy, cast iron and stainless steel. Pneumatic diaphragm pumps use nitrile rubber, chloroprene rubber, fluororubber, polytetrafluoroethylene and polytetrafluoroethylene according to different liquid media.

[0003] Its application number "201922244477.5" discloses "a pneumatic diaphragm pump that is easy to clean", which "includes a pneumatic diaphragm pump body, a liquid inlet and a liquid outlet, the upper and lower ends of the pneumatic diaphragm pump body are respectively provided with a liquid outlet and a liquid inlet, two diaphragms are arranged in the pneumatic diaphragm pump body, the hole cross-section of the liquid inlet is arranged as a circular structure, one end of a liquid guide tube is arranged on both sides of the liquid inlet, the other end of the liquid guide tube is connected to a rubber block, the rubber block is inserted into the pneumatic diaphragm pump body, the liquid guide tube is connected with the liquid storage cavity through the liquid inlet hole, and a plurality of liquid outlet holes are opened at one end of the rubber block located in the pneumatic diaphragm pump body, and the liquid outlet holes are connected with the liquid storage cavity." In the utility model, a combination structure of a sealing mechanism, a rotating rod, a crank handle, a support plate and a cleaning brush is added to the pneumatic diaphragm pump body. The arrangement of the combination structure does not require opening the pneumatic diaphragm pump body when cleaning the diaphragm, thereby effectively avoiding the problem of weak sealing performance during reinstallation. At the same time, the combination structure is reasonably designed and simple to operate, and can achieve the effect of convenient operation. Therefore, it has high practical value in actual applications.

[0004] However, the above method still has the following defects: the cleaning brush at one end of the support plate can clean the diaphragm only by rotating the rotating rod through the crank handle, which is relatively labor-intensive, and the setting of the support plate will hinder the reciprocating motion of the diaphragm, making it inconvenient to shrink the support plate, which will reduce the performance of the diaphragm pump. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a pneumatic diaphragm pump that is easy to clean, has the advantages of saving manpower and not hindering the reciprocating motion of the diaphragm, and solves the problems raised by the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: an air-operated diaphragm pump which is easy to clean, comprising a pump body, diaphragms are provided on both sides of the pump body, storage chambers are provided on both sides of the pump body, a sleeve is slidably connected to the middle of one side of the storage chamber, an axial seal is provided between the sleeve and the storage chamber, an electric push rod for driving the sleeve to move is provided on one side of the storage chamber, a support shaft is rotatably connected to the inside of the sleeve, a telescopic rod of the electric push rod is connected to a motor for driving the support shaft to rotate, a radial seal is provided between the support shaft and the sleeve, a cleaning disk is provided inside the storage chamber, a connecting assembly for supporting the cleaning disk is provided at one end of the support shaft, and a support assembly is provided at the bottom end of the pump body.

[0007] As a preferred technical solution of the utility model, support rings are welded on both sides of the pump body, an end cover is welded on the other side of the storage chamber, a connecting ring is welded on one side of the end cover, and one side of the connecting ring is fixedly connected to one side of the support ring by bolts.

[0008] As a preferred technical solution of the utility model, a bracket is welded on one side of the storage chamber, one side of the electric push rod is fixedly connected to the middle part of one side of the bracket, the telescopic rod of the electric push rod is fixedly connected to a slide plate, the middle part of one side of the slide plate is fixedly connected to one end of the motor, the output shaft of the motor is connected to the support shaft, one end of the sleeve is fixedly connected to the baffle plate, and the middle part of the baffle plate is rotatably connected to the support shaft.

[0009] As a preferred technical solution of the utility model, the four corners of the slide are fixed with sliding sleeves, the sliding sleeves are slidably connected to a support rod, one end of the support rod is welded to the bracket, and the other end of the support rod is welded to one side of the storage chamber.

[0010] As a preferred technical solution of the utility model, the connecting assembly includes a mounting plate and a connecting plate, the middle part of one side of the mounting plate is fixedly connected to one end of the support shaft, the other side of the mounting plate is fixedly connected to one side of the connecting plate by screws, and a plurality of pillars are fixedly provided on the other side of the connecting plate, and one end of the pillars is fixedly connected to the cleaning plate.

[0011] As a preferred technical solution of the utility model, a plurality of through holes are opened in the middle of the cleaning disk, and a cleaning strip is fixedly provided on the surface of the cleaning disk.

[0012] As a preferred technical solution of the utility model, the support assembly includes a base plate, support plates are welded on both sides of the top of the base plate, a curved groove is opened on the top of the support plate, the top of the support plate is welded to the bottom end of the pump body through the curved groove, and the four corners of the bottom end of the base plate are fixedly connected with rubber shock-absorbing pads by bolts.

[0013] As a preferred technical solution of the utility model, a limiting groove is provided on one side of the connecting ring, a sealing gasket is provided inside the limiting groove, and the sealing gasket is located between the supporting ring and the connecting ring.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The sleeve is driven by an electric push rod to make the support shaft move horizontally, and the cleaning disk can fit the diaphragm. The support shaft is driven by a motor to drive the cleaning disk to rotate, so that the surface of the diaphragm can be cleaned without manual operation, saving manpower and time. The sleeve is pulled by the electric push rod to reset it, and the cleaning disk can be stored in the storage room without taking up space, avoiding interference with the diaphragm, and maintaining the reciprocating motion of the diaphragm.

[0016] 2. The pneumatic diaphragm pump, which is easy to clean, can seal between the sleeve and the storage chamber through axial sealing, thereby preventing fluid leakage when the sleeve slides, and can provide sealing between the support shaft and the sleeve through radial sealing, thereby preventing fluid leakage through the inside of the sleeve when the support shaft rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the end cover of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the interior of the storage room of the utility model;

[0021] Figure 5 It is a schematic diagram of the explosion structure of the storage room of the utility model;

[0022] Figure 6 It is a schematic diagram of the exploded structure of the connection assembly of the utility model.

[0023] In the figure: 1. pump body; 2. diaphragm; 3. support ring; 4. end cover; 5. connecting ring; 6. storage chamber; 7. cleaning plate; 8. cleaning strip; 9. bracket; 10. electric push rod; 11. axial seal; 12. slide plate; 13. connecting assembly; 1301. mounting plate; 1302. connecting plate; 1303. pillar; 14. supporting assembly; 1401. bottom plate; 1402. supporting plate; 1403. rubber shock-absorbing pad; 15. motor; 16. sliding sleeve; 17. support rod; 18. baffle plate; 19. sleeve; 20. support shaft; 21. radial seal; 22. through hole; 23. sealing gasket. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 6 , a pneumatic diaphragm pump that is easy to clean, includes a pump body 1, diaphragms 2 are provided on both sides of the pump body 1, storage chambers 6 are provided on both sides of the pump body 1, a sleeve 19 is slidably connected to the middle of one side of the storage chamber 6, an axial seal 11 is provided between the sleeve 19 and the storage chamber 6, an electric push rod 10 for driving the sleeve 19 to move is provided on one side of the storage chamber 6, a support shaft 20 is rotatably connected inside the sleeve 19, a telescopic rod of the electric push rod 10 is connected to a motor 15 for driving the support shaft 20 to rotate, a radial seal 21 is provided between the support shaft 20 and the sleeve 19, a cleaning disk 7 is provided inside the storage chamber 6, and a connecting assembly 13 for supporting the cleaning disk 7 is provided at one end of the support shaft 20, the support shaft 20 is driven horizontally by the electric push rod 10, so that the cleaning disk 7 can be attached to the diaphragm 2, and the support shaft 20 is driven by the motor 15 to drive the cleaning disk 7 to rotate, so that the surface of the diaphragm 2 can be cleaned, and a supporting assembly 14 is provided at the bottom end of the pump body 1;

[0026] In this embodiment, preferably, the connecting assembly 13 includes a mounting plate 1301 and a connecting plate 1302, the middle part of one side of the mounting plate 1301 is fixedly connected to one end of the support shaft 20, the other side of the mounting plate 1301 is fixedly connected to one side of the connecting plate 1302 by screws, the other side of the connecting plate 1302 is fixedly provided with a plurality of pillars 1303, one end of the pillar 1303 is fixedly connected to the cleaning plate 7, the connecting plate 1302 can be connected to the mounting plate 1301 by screws, the support shaft 20 can support the mounting plate 1301, and the mounting plate 1301 can support the cleaning plate 7 through the connecting plate 1302 and the pillar 1303;

[0027] In this embodiment, preferably, the support assembly 14 includes a bottom plate 1401, support plates 1402 are welded on both sides of the top of the bottom plate 1401, a curved groove is provided on the top of the support plate 1402, the top of the support plate 1402 is welded to the bottom of the pump body 1 through the curved groove, and the four corners of the bottom of the bottom plate 1401 are fixedly connected with rubber shock-absorbing pads 1403 by bolts, and the support plate 1402 can provide stable support between the bottom plate 1401 and the pump body 1, and the rubber shock-absorbing pads 1403 can improve the stability of the pump body 1 when it is working;

[0028] In this embodiment, preferably, support rings 3 are welded on both sides of the pump body 1, an end cover 4 is welded on the other side of the storage chamber 6, a connecting ring 5 is welded on one side of the end cover 4, one side of the connecting ring 5 is fixedly connected to one side of the support ring 3 by bolts, and the end cover 4 can be disassembled and assembled, a limiting groove is provided on one side of the connecting ring 5, a sealing gasket 23 is provided inside the limiting groove, and the sealing gasket 23 is located between the support ring 3 and the connecting ring 5, and the support ring 3 and the connecting ring 5 can be sealed by the sealing gasket 23;

[0029] In the present embodiment, preferably, a bracket 9 is welded to one side of the storage chamber 6, one side of the electric push rod 10 is fixedly connected to the middle part of one side of the bracket 9, the telescopic rod of the electric push rod 10 is fixedly connected to the slide plate 12, the middle part of one side of the slide plate 12 is fixedly connected to one end of the motor 15, the output shaft of the motor 15 is connected to the support shaft 20, one end of the sleeve 19 is fixedly connected to the baffle plate 18, the middle part of the baffle plate 18 is rotatably connected to the support shaft 20, the telescopic rod of the electric push rod 10 can support the motor 15 through the slide plate 12, and can drive the motor 15 to move horizontally, the motor 15 can drive the support shaft 20 to rotate, that is, the cleaning disk 7 can rotate, the four corners of the slide plate 12 are fixedly provided with a sliding sleeve 16, the sliding sleeve 16 is slidably connected to the support rod 17, one end of the support rod 17 is welded to the bracket 9, and the other end of the support rod 17 is welded to one side of the storage chamber 6, the support rod 17 and the sliding sleeve 16 can support and guide the slide plate 12, the slide plate 12 can be prevented from tilting, and the stability of the motor 15 can be maintained;

[0030] In this embodiment, preferably, a plurality of through holes 22 are opened in the middle of the cleaning disk 7, and the through holes 22 can increase the operating space, making it easier to disassemble and assemble the cleaning disk 7. A cleaning strip 8 is fixedly provided on the surface of the cleaning disk 7, and the surface of the diaphragm 2 can be cleaned through the cleaning strip 8.

[0031] When in use, firstly, the slide plate 12 is driven to move horizontally by the electric push rod 10, and the support rod 17 and the sliding sleeve 16 can support and guide the slide plate 12 to prevent the slide plate 12 from tilting. The slide plate 12 can push the sleeve 19 and the support shaft 20, so that the cleaning disk 7 can fit the diaphragm 2, and the axial seal 11 can seal between the sleeve 19 and the storage chamber 6. Then, the support shaft 20 is driven by the motor 15, and the radial seal 21 can provide a seal between the support shaft 20 and the sleeve 19. The support shaft 20 can drive the cleaning disk 7 to rotate, and the cleaning disk 7 can clean the surface of the diaphragm 2 through the cleaning strip 8 without manual operation. After the cleaning is completed, the sleeve 19 is pulled back to its original position by the electric push rod 10, so that the cleaning disk 7 can be stored in the storage chamber 6 without taking up space, avoiding interference with the diaphragm 2, and maintaining the reciprocating motion of the diaphragm 2.

[0032] During the operation of the pump body 1, the support plate 1402 can provide stable support between the bottom plate 1401 and the pump body 1, and the rubber shock-absorbing pad 1403 can improve the stability of the pump body 1 during operation. When the cleaning disk 7 is worn and needs to be replaced, the screws fixing the connecting disk 1302 can be loosened through the through hole 22 to separate the connecting disk 1302 from the mounting disk 1301, and the cleaning disk 7 can be disassembled.

[0033] 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 pneumatic diaphragm pump that is easy to clean, comprising a pump body (1), characterized in that: Diaphragms (2) are provided on both sides of the pump body (1), and storage chambers (6) are provided on both sides of the pump body (1). A sleeve (19) is slidably connected to the middle of one side of the storage chamber (6), and an axial seal (11) is provided between the sleeve (19) and the storage chamber (6). An electric push rod (10) for driving the sleeve (19) to move is provided on one side of the storage chamber (6), and a support shaft (20) is rotatably connected inside the sleeve (19). The telescopic rod of the electric push rod (10) is connected to a motor (15) for driving the support shaft (20) to rotate, and a radial seal (21) is provided between the support shaft (20) and the sleeve (19). A cleaning disk (7) is provided inside the storage chamber (6), and a connecting assembly (13) for supporting the cleaning disk (7) is provided at one end of the support shaft (20), and a supporting assembly (14) is provided at the bottom end of the pump body (1).

2. The pneumatic diaphragm pump that is easy to clean according to claim 1, characterized in that: Support rings (3) are welded to both sides of the pump body (1), an end cover (4) is welded to the other side of the storage chamber (6), a connecting ring (5) is welded to one side of the end cover (4), and one side of the connecting ring (5) is fixedly connected to one side of the support ring (3) by bolts.

3. The pneumatic diaphragm pump that is easy to clean according to claim 1, characterized in that: A bracket (9) is welded to one side of the storage chamber (6); one side of the electric push rod (10) is fixedly connected to the middle part of one side of the bracket (9); the telescopic rod of the electric push rod (10) is fixedly connected to a slide plate (12); the middle part of one side of the slide plate (12) is fixedly connected to one end of a motor (15); the output shaft of the motor (15) is connected to a support shaft (20); one end of the sleeve (19) is fixedly connected to a baffle plate (18); and the middle part of the baffle plate (18) is rotatably connected to the support shaft (20).

4. The easy-to-clean pneumatic diaphragm pump according to claim 3, characterized in that: The four corners of the slide plate (12) are all fixedly provided with sliding sleeves (16), the sliding sleeves (16) are slidably connected to a support rod (17), one end of the support rod (17) is welded to the bracket (9), and the other end of the support rod (17) is welded to one side of the storage chamber (6).

5. The easy-to-clean pneumatic diaphragm pump according to claim 1, characterized in that: The connection assembly (13) comprises a mounting plate (1301) and a connecting plate (1302); the middle portion of one side of the mounting plate (1301) is fixedly connected to one end of the support shaft (20); the other side of the mounting plate (1301) is fixedly connected to one side of the connecting plate (1302) via screws; a plurality of pillars (1303) are fixedly provided on the other side of the connecting plate (1302); one end of the pillar (1303) is fixedly connected to the cleaning plate (7).

6. The easy-to-clean pneumatic diaphragm pump according to claim 1, characterized in that: A plurality of through holes (22) are provided in the middle of the cleaning disk (7), and a cleaning strip (8) is fixedly provided on the surface of the cleaning disk (7).

7. The easy-to-clean pneumatic diaphragm pump according to claim 1, characterized in that: The support assembly (14) comprises a bottom plate (1401), support plates (1402) are welded to both sides of the top of the bottom plate (1401), a curved groove is provided at the top of the support plate (1402), the top of the support plate (1402) is welded to the bottom of the pump body (1) via the curved groove, and the four corners of the bottom of the bottom plate (1401) are fixedly connected to rubber shock-absorbing pads (1403) via bolts.

8. The easy-to-clean pneumatic diaphragm pump according to claim 2, characterized in that: A limiting groove is provided on one side of the connecting ring (5), a sealing gasket (23) is provided inside the limiting groove, and the sealing gasket (23) is located between the supporting ring (3) and the connecting ring (5).

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