Efficient pressurization type electric diaphragm pump

Abstract

The utility model discloses an efficient pressurization type electric diaphragm pump which comprises a frame which is designed in an L-shaped step mode, the outer surface of a pump shell is penetrated by the output end of a driving motor, an inlet pipe is fixedly installed on the outer surface of the pump shell, and a discharge pipe is fixedly installed at the end, away from the inlet pipe, of the pump shell. A rotating pulling mechanism is arranged in the pump shell, the diaphragm works in a reciprocating mode through the rotating pulling mechanism, and liquid entering the pump shell can be pressed out. According to the efficient pressurization type electric diaphragm pump, power is replaced by the driving motor, the torque of the diaphragm pump can be increased, the diaphragm pump can bear higher pressure, meanwhile, the cam can be driven to rotate through rotation of the driving motor, the sliding rods attached to the cam are made to move, and the sliding rods on the two sides of the pump shell work at the same time; the liquid pumped out from the two sides is discharged together through the discharge pipe, the pressure of the liquid discharged by the discharge pipe is increased, and meanwhile, the diaphragm pump can bear higher pressure through increased torque.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm pumps, in particular to a high-efficiency pressurized electric diaphragm pump. Background Art

[0002] The diaphragm pump is an important conveying equipment in the liquid flow conveying process. It is mainly used to convey and transfer highly corrosive liquids and liquids with high impurities. The reciprocating motion of the diaphragm inside the pump sucks in and discharges the liquid in the pump chamber. However, most traditional diaphragm pumps use gas compressed by an air compressor to perform reciprocating motion. The torque of the diaphragm pump is small and cannot bear high pressure. There are also requirements for the sealing of the diaphragm movement chamber, which makes it impossible for the diaphragm pump to pressurize and discharge the liquid at a high torque. Utility Model Content

[0003] The purpose of the utility model is to provide a high-efficiency pressurized electric diaphragm pump to solve the problem in the above background technology that the diaphragm pump driven by gas has low torque and low pressure.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency pressurized electric diaphragm pump, comprising a frame, the frame being an L-shaped stepped design, and a driving motor being fixedly mounted on the outer surface of one high end of the frame, and a pump casing being fixedly mounted on the outer surface of the output end of the driving motor, the outer surface of the pump casing being penetrated by the output end of the driving motor, and a sealing ring being provided between the output end of the driving motor and the pump casing, an inlet pipe being fixedly mounted on the outer surface of the pump casing, and a discharge pipe being fixedly mounted on the end of the pump casing away from the inlet pipe, and a rotating and pulling mechanism being provided inside the pump casing, which causes the diaphragm to work reciprocatingly through the rotating and pulling mechanism, so that the liquid entering the pump casing can be pressed out.

[0005] Preferably, the rotating and pulling mechanism includes: a cam, which is fixedly mounted on the outer surface of the output end of the driving motor, and the driving motor and the cam are concentrically designed, and a T-shaped groove is provided on the side surface of the cam, and a side partition is opened inside the pump casing, and the side partitions are respectively located on both sides of the pump casing, a sliding rod is snap-fitted into the groove of the cam, and the outer surface of the sliding rod is fitted with the groove of the cam, the outer surface of the sliding rod passes through the outer surface of the side partition, and the side partition and the sliding rod are concentrically designed, and a diaphragm pad is fixedly mounted on one end of the sliding rod.

[0006] By adopting the above technical solution, the cam can be driven to rotate by the driving motor, and the rotation of the cam can drive the sliding rods at both ends of the pump casing to move together, so that the diaphragm pad moves together to draw the liquid into the pump casing and discharge it outward at the same time. The torque of the diaphragm pump is increased by the rotation of the driving motor, so that the pump body can generate greater pressure. At the same time, the diaphragm pads on both sides move together to generate a greater flow rate, so that the pumped liquid can be discharged under pressure.

[0007] Preferably, an oil filling port is threadedly installed on the outer surface of the pump housing, and the oil filling port passes through the outer surface of the pump housing, a sealing gasket is provided between the side partition and the sliding rod, an oil discharge port is opened at one end of the pump housing away from the oil filling port, and the oil discharge port of the pump housing is located at the bottom end.

[0008] By adopting the above technical solution, lubricating oil can be injected into the interior of the pump housing to reduce the friction generated by the rotation between the cam and the sliding rod, so that the sliding rod can move more smoothly.

[0009] Preferably, a clamping and squeezing mechanism is provided on both sides of the pump housing, and the diaphragm pad is clamped by the clamping and squeezing mechanism, which facilitates the replacement of the diaphragm pad and makes the diaphragm pump easy to maintain.

[0010] By adopting the above technical solution, when the sealing performance of the pump body is poor, the side pump inspection cover can be easily removed to perform maintenance and replacement on the diaphragm pad.

[0011] Preferably, the locking and extrusion mechanism includes: a side pump inspection cover, which is fixedly mounted on the outer surfaces of both ends of the pump casing, and the side surfaces of the pump casing are fitted with the outer surfaces of the side pump inspection cover, the outer surface of the pump casing and the outer surface of the side pump inspection cover are respectively fitted with the diaphragm pad, and the diaphragm pad is concentrically designed with the side pump inspection cover, the center of the diaphragm pad is penetrated by the sliding rod, and the outer surface of the side surface of the sliding rod is threaded with a screw, and a clamping gasket is provided between the screw and the diaphragm pad, and the clamping gasket is tightly fitted with the outer surface of the diaphragm pad, and the outer surface of the clamping gasket is penetrated by the sliding rod.

[0012] By adopting the above technical solution, when replacing the diaphragm pad, the diaphragm pad can be fixed to the sliding rod by means of the clamping gasket and the screw, so that the side surface of the sliding rod and the clamping gasket can clamp the diaphragm pad and ensure sealing. At the same time, the diaphragm pad is positioned so that it is located in the center of the pump casing, so that the diaphragm pad does not need to be adjusted when the side pump inspection cover is pressed on and tightened.

[0013] Preferably, the outer surface of the inlet pipe is in contact with the outer surface of the frame, and the frame is engaged with the inlet pipe. An elastic pushing mechanism is provided between the inlet pipe, the discharge pipe and the side pump inspection cover. The elastic pushing mechanism seals the inlet pipe, the discharge pipe and the side pump inspection cover, so that a pressure chamber is formed in the cavity between the pump casing and the side pump inspection cover when the diaphragm pump is working, so that the liquid can be sucked into the cavity between the pump casing and the side pump inspection cover and pressed out, making it easy to maintain.

[0014] The above technical solution makes it easy to remove the inlet pipe, outlet pipe and side pump inspection cover separately, and replace and repair the consumable parts.

[0015] Preferably, a sealing gasket is mounted on one end of the side pump inspection cover, and a ball is fitted inside the sealing gasket, and the ball is located inside the side pump inspection cover, a spring is provided between the ball and the inlet pipe, and one end of the spring is fitted with the ball, a spring is provided at the end of the side pump inspection cover away from the inlet pipe, and one end of the spring is fitted with the ball, and the ball and the spring are located inside the side pump inspection cover, a sealing gasket is mounted on the inside of the discharge pipe, and the outer surface of the sealing gasket is fitted with the ball.

[0016] By adopting the above technical solution, the liquid can be pushed open by the contraction of the diaphragm pad, and the ball connected to the inlet pipe is pushed open, while the ball in the discharge pipe remains fixed, and the liquid is drawn into between the pump casing and the side pump inspection cover. The ball in the discharge pipe is pushed open by the diaphragm pad, and the ball in the inlet pipe remains sealed with the sealing gasket, squeezing the liquid out of the cavity of the pump casing and the side pump inspection cover, so that the liquid can be pumped into and out of the diaphragm pump through the contraction and push out of the diaphragm pad. The communication between the inlet pipe, discharge pipe and side pump inspection cover is controlled by the balls, sealing gasket and spring, so that the liquid can have greater pressure when it is pushed out.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the high-efficiency pressurized electric diaphragm pump:

[0018] 1. Replacing the diaphragm pump's power with a drive motor can increase the diaphragm pump's torque, allowing the diaphragm pump to carry higher pressures. At the same time, the rotation of the drive motor drives the cam to rotate, moving the sliding rod that fits the cam. This causes the sliding rods on both sides of the pump housing to work simultaneously, discharging the liquid pumped out of both sides through the discharge pipe together, increasing the pressure of the liquid discharged from the discharge pipe. At the same time, the increased torque enables the diaphragm pump to carry higher pressures.

[0019] 2. The oil filling port can be opened to inject lubricating oil into the pump housing. The lubricating oil reduces the friction and loss generated by the cam, sliding rod and side baffle during operation, making the cam and sliding rod able to rotate more smoothly. At the same time, it can increase the service life of the cam, sliding rod and side baffle. After a period of use, the waste oil can be discharged through the oil drain port at the lower end of the pump housing for replacement;

[0020] 3. When the sealing of the diaphragm pump decreases due to long-term use, resulting in a decrease in power, the diaphragm gasket in the pump casing can be inspected and replaced by opening the side pump inspection cover. Then, the clamping gasket and screws are installed back on the sliding rod and tightened so that the clamping gasket and the sliding rod clamp the diaphragm gasket to ensure sealing. At the same time, the side pump inspection cover, inlet pipe, and discharge pipe can be disassembled and separated, and the internal ball bearings, sealing washers, springs and other consumable parts can be replaced, which is convenient for maintenance and replacement of the consumable parts of the diaphragm pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the frame and pump casing of the utility model;

[0022] Figure 2 This is a schematic diagram of the cross-sectional three-dimensional structure of the pump casing and side partition of the utility model;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the drive motor and pump casing of the utility model;

[0024] Figure 4 This is a schematic diagram of the sectional three-dimensional structure of the cam and the sliding rod of the utility model;

[0025] Figure 5 This is a schematic diagram of the exploded three-dimensional structure of the side pump inspection cover and diaphragm pad of the utility model;

[0026] Figure 6 This is a schematic diagram of the cross-sectional three-dimensional structure of the pump casing and diaphragm pad of the utility model.

[0027] In the figure: 1. Frame; 2. Drive motor; 3. Pump housing; 4. Side pump inspection cover; 5. Inlet pipe; 6. Discharge pipe; 7. Ball; 8. Sealing gasket; 9. Spring; 10. Cam; 11. Sliding rod; 12. Side partition; 13. Diaphragm pad; 14. Clamping gasket; 15. Screw; 16. Oil filling port. DETAILED DESCRIPTION

[0028] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-6 The utility model provides a technical solution: a high-efficiency pressurized electric diaphragm pump, comprising a frame 1, the frame 1 is an L-shaped stepped design, and a driving motor 2 is fixedly mounted on the outer surface of one high end of the frame 1, and a pump casing 3 is fixedly mounted on the outer surface of the output end of the driving motor 2, the outer surface of the pump casing 3 is penetrated by the output end of the driving motor 2, and a sealing ring is provided between the output end of the driving motor 2 and the pump casing 3, an inlet pipe 5 is fixedly mounted on the outer surface of the pump casing 3, and a discharge pipe 6 is fixedly mounted on the end of the pump casing 3 away from the inlet pipe 5, and a rotating and pulling mechanism is provided inside the pump casing 3, which causes the diaphragm to work reciprocatingly through the rotating and pulling mechanism, so that the liquid entering the pump casing 3 can be pressed out.

[0030] The sealing of the pump housing 3 is ensured by a sealing ring between the drive motor 2 and the pump housing 3, so that the lubricating oil injected into the pump housing 3 will not flow out. At the same time, the L-shaped step design of the frame 1 can more conveniently install the drive motor 2 and the pump housing 3.

[0031] The rotating and pulling mechanism includes: a cam 10, which is fixedly mounted on the outer surface of the output end of the driving motor 2, and the driving motor 2 and the cam 10 are concentrically designed, and the side surface of the cam 10 is provided with a T-shaped groove, and a side partition 12 is opened inside the pump casing 3, and the side partitions 12 are respectively located on both sides of the pump casing 3, a sliding rod 11 is snap-fitted into the groove of the cam 10, and the outer surface of the sliding rod 11 is fitted with the groove of the cam 10, the outer surface of the sliding rod 11 passes through the outer surface of the side partition 12, and the side partition 12 and the sliding rod 11 are concentrically designed, and a diaphragm pad 13 is fixedly mounted on one end of the sliding rod 11.

[0032] The rotation of the drive motor 2 drives the cam 10 to rotate, so that the sliding rod 11 engaged with the cam 10 slides with the side partition 12 as the fulcrum. When the cam 10 rotates to the lowest point, the sliding rods 11 on both sides will be pushed out to drive the diaphragm pad 13 to be pushed out. When the cam 10 rotates to the highest point, the sliding rods 11 on both sides will be pulled back to drive the diaphragm pad 13 to contract. The rotation of the cam 10 drives the sliding rods 11 on both sides to move together. Since the sliding rods 11 are arranged on both sides of the cam 10, the rotation of the cam 10 is more balanced and reduces resistance. At the same time, the use of the drive motor 2 significantly increases the torque, and cooperates with the simultaneous work of the diaphragm pads 13 on both sides to make the pumped liquid have greater pressure.

[0033] An oil filling port 16 is threadedly installed on the outer surface of the pump housing 3, and the oil filling port 16 passes through the outer surface of the pump housing 3. A sealing gasket is provided between the side partition 12 and the sliding rod 11. An oil drain port is provided at one end of the pump housing 3 away from the oil filling port 16, and the oil drain port of the pump housing 3 is located at the bottom end.

[0034] By unscrewing the oil filling port 16, lubricating oil can be injected into the interior of the pump housing 3, reducing the friction generated by the operation of the cam 10, the sliding rod 11 and the side partition 12, reducing the wear between the cam 10, the sliding rod 11 and the side partition 12, making the diaphragm pump run more smoothly, and the spent oil can be discharged outward through the oil drain port at the bottom of the pump housing 3 for replacement.

[0035] The pump casing 3 is provided with a snap-fitting and squeezing mechanism on both sides, which clamps the diaphragm gasket 13 through the snap-fitting and squeezing mechanism, making it convenient to replace the diaphragm gasket 13 and making the diaphragm pump easy to maintain. The snap-fitting and squeezing mechanism includes: a side pump inspection cover 4, which is fixedly mounted on the outer surfaces of both ends of the pump casing 3, and the side surfaces of the pump casing 3 are fitted with the outer surfaces of the side pump inspection cover 4, and the outer surfaces of the pump casing 3 and the side pump inspection cover 4 are respectively fitted with the diaphragm gasket 13, and the diaphragm gasket 13 is concentric with the side pump inspection cover 4. The center of the diaphragm gasket 13 is penetrated by the sliding rod 11, and the outer surface of the side surface of the sliding rod 11 is threadedly installed with a screw 15, and a clamping gasket 14 is provided between the screw 15 and the diaphragm gasket 13, and the clamping gasket 14 is tightly fitted with the outer surface of the diaphragm gasket 13, and the outer surface of the clamping gasket 14 is penetrated by the sliding rod 11.

[0036] When there is a problem with the sealing between the pump casing 3, the diaphragm gasket 13 and the side pump inspection cover 4, the side pump inspection cover 4 can be removed to check the diaphragm gasket 13 installed in the pump casing 3. When the diaphragm gasket 13 is damaged or the sealing is poor, the clamping gasket 14 and the screw 15 can be unscrewed to replace the diaphragm gasket 13. Then, the clamping gasket 14 is inserted and the screw 15 is screwed back so that the clamping gasket 14 and the sliding rod 11 tightly clamp the diaphragm gasket 13, and at the same time, the diaphragm gasket 13 is accurately stuck in the pump casing 3. After that, the side pump inspection cover 4 can be buckled back and tightened without adjusting the diaphragm gasket 13, so that the sealing between the diaphragm gasket 13 and the pump casing 3 and the side pump inspection cover 4 is maintained, and the diaphragm gasket 13 is convenient to replace and maintain.

[0037] The outer surface of the inlet pipe 5 fits with the outer surface of the frame 1, and the frame 1 is engaged with the inlet pipe 5. An elastic pushing mechanism is provided between the inlet pipe 5, the discharge pipe 6 and the side pump inspection cover 4. The elastic pushing mechanism makes the inlet pipe 5, the discharge pipe 6 and the side pump inspection cover 4 airtight, so that when the diaphragm pump is working, a pressure chamber is formed in the cavity between the pump casing 3 and the side pump inspection cover 4, so that the liquid can be sucked into the cavity between the pump casing 3 and the side pump inspection cover 4 and pressed out, and maintenance can be facilitated.

[0038] When there is a problem with the seal of the diaphragm, the side pump inspection cover 4, the inlet pipe 5 and the discharge pipe 6 can be disassembled, cleaned and maintained, and the wearing parts such as the ball 7, the sealing gasket 8 and the spring 9 can be inspected and replaced.

[0039] A sealing gasket 8 is installed on one end of the side pump inspection cover 4, and a ball 7 is fitted inside the sealing gasket 8, and the ball 7 is located inside the side pump inspection cover 4, a spring 9 is provided between the ball 7 and the inlet pipe 5, and one end of the spring 9 is fitted with the ball 7, a spring 9 is provided at the end of the side pump inspection cover 4 away from the inlet pipe 5, and one end of the spring 9 is fitted with the ball 7, and the ball 7 and the spring 9 are located inside the side pump inspection cover 4, a sealing gasket 8 is installed on the inside of the discharge pipe 6, and the outer surface of the sealing gasket 8 is fitted with the ball 7.

[0040] When the cam 10 rotates to the highest point, the sliding rod 11 can be pulled back to drive the diaphragm gasket 13 to contract, and the liquid pushes the ball 7 open through the inlet pipe 5 and enters the cavity between the pump casing 3 and the side pump inspection cover 4. As for the side pump inspection cover 4 connected to the discharge pipe 6, the ball 7 is pushed out by the spring 9 and fits with the sealing gasket 8 to maintain the seal between the pump casing 3 and the side pump inspection cover 4, so that the discharge pipe 6 will not suck in the liquid when the liquid is sucked into the diaphragm pump. When the cam 10 rotates to the lowest point, the sliding rod 11 can be pushed out to drive the diaphragm gasket 13 to be pushed out, so that the liquid in the cavity of the pump casing 3 and the side pump inspection cover 4 is pressed out and the ball 7 is pushed out to be discharged from the discharge pipe 6, while the ball 7 on the side of the inlet pipe 5 is pushed out by the spring 9 and fits tightly with the sealing gasket 8 to ensure that the liquid will not leak from the inlet pipe 5 when pushed out, and to ensure the sealing of the cavity of the pump casing 3 and the side pump inspection cover 4 when the diaphragm gasket 13 moves.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency pressurized electric diaphragm pump, comprising a frame (1), wherein the frame (1) is of L-shaped stepped design, and a driving motor (2) is fixedly mounted on the outer surface of one upper end of the frame (1), and a pump housing (3) is fixedly mounted on the outer surface of the output end of the driving motor (2), the outer surface of the pump housing (3) is penetrated by the output end of the driving motor (2), and a sealing ring is provided between the output end of the driving motor (2) and the pump housing (3), an inlet pipe (5) is fixedly mounted on the outer surface of the pump housing (3), and a discharge pipe (6) is fixedly mounted on the end of the pump housing (3) away from the inlet pipe (5), characterized in that: A rotating and pulling mechanism is provided inside the pump housing (3), and the rotating and pulling mechanism causes the diaphragm to work reciprocatingly, so that the liquid entering the pump housing (3) can be pressed out.

2. A high-efficiency pressurized electric diaphragm pump according to claim 1, characterized in that: The rotating and pulling mechanism includes: a cam (10), the cam (10) is fixedly mounted on the outer surface of the output end of the driving motor (2), and the driving motor (2) and the cam (10) are concentrically designed, and the side surface of the cam (10) is provided with a T-shaped groove, the inside of the pump housing (3) is provided with a side partition (12), and the side partitions (12) are respectively located on both sides of the pump housing (3), a sliding rod (11) is snap-fitted and mounted in the groove of the cam (10), and the outer surface of the sliding rod (11) is fitted with the groove of the cam (10), the outer surface of the sliding rod (11) passes through the outer surface of the side partition (12), and the side partition (12) and the sliding rod (11) are concentrically designed, and a diaphragm pad (13) is fixedly mounted on one end of the sliding rod (11).

3. A high-efficiency pressurized electric diaphragm pump according to claim 2, characterized in that: An oil filling port (16) is threadedly mounted on the outer surface of the pump housing (3), and the oil filling port (16) penetrates the outer surface of the pump housing (3). A sealing gasket is provided between the side partition plate (12) and the sliding rod (11). An oil discharge port is provided at one end of the pump housing (3) away from the oil filling port (16), and the oil discharge port of the pump housing (3) is located at the bottom end.

4. A high-efficiency pressurized electric diaphragm pump according to claim 3, characterized in that: The pump housing (3) is provided with a clamping and squeezing mechanism on both sides, and the diaphragm pad (13) is clamped by the clamping and squeezing mechanism, making it convenient to replace the diaphragm pad (13) and making the diaphragm pump easy to maintain.

5. A high-efficiency pressurized electric diaphragm pump according to claim 4, characterized in that: The engaging and squeezing mechanism includes: a side pump inspection cover (4), the side pump inspection cover (4) is fixedly mounted on the outer surfaces of both ends of the pump housing (3), and the side surface of the pump housing (3) fits in with the outer surface of the side pump inspection cover (4), the outer surface of the pump housing (3) and the outer surface of the side pump inspection cover (4) respectively fit with the diaphragm pad (13), and the diaphragm pad (13) and the side pump inspection cover (4) are designed to be concentric, the center of the diaphragm pad (13) is penetrated by the sliding rod (11), and the outer surface of the side surface of the sliding rod (11) is threadedly installed with a screw (15), and a clamping gasket (14) is provided between the screw (15) and the diaphragm pad (13), and the clamping gasket (14) is tightly fitted with the outer surface of the diaphragm pad (13), and the outer surface of the clamping gasket (14) is penetrated by the sliding rod (11).

6. The high-efficiency pressurized electric diaphragm pump according to claim 1, characterized in that: The outer surface of the inlet pipe (5) is in contact with the outer surface of the frame (1), and the frame (1) is engaged with the inlet pipe (5). An elastic pushing mechanism is provided between the inlet pipe (5), the discharge pipe (6) and the side pump inspection cover (4). The elastic pushing mechanism seals the inlet pipe (5), the discharge pipe (6) and the side pump inspection cover (4), so that a pressure chamber is formed in the cavity between the pump housing (3) and the side pump inspection cover (4) when the diaphragm pump is working, so that liquid can be sucked into the cavity between the pump housing (3) and the side pump inspection cover (4) and pressed out, and maintenance can be facilitated.

7. A high-efficiency pressurized electric diaphragm pump according to claim 6, characterized in that: One end of the side pump inspection cover (4) is fitted with a sealing gasket (8), and the interior of the sealing gasket (8) is fitted with a ball (7), and the ball (7) is located inside the side pump inspection cover (4), a spring (9) is provided between the ball (7) and the inlet pipe (5), and one end of the spring (9) is fitted with the ball (7), the end of the side pump inspection cover (4) away from the inlet pipe (5) is provided with a spring (9), and one end of the spring (9) is fitted with the ball (7), and the ball (7) and the spring (9) are located inside the side pump inspection cover (4), the interior of the discharge pipe (6) is fitted with a sealing gasket (8), and the outer surface of the sealing gasket (8) is fitted with the ball (7).

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