CN210317783U

CN210317783U - Self-suction centrifugal pump

Info

Publication number: CN210317783U
Application number: CN201921011094.7U
Authority: CN
Inventors: 胡学刚
Original assignee: Fuzhou Runtai Pharmaceutical Co Ltd
Current assignee: Fuzhou Runtai Pharmaceutical Co Ltd
Priority date: 2019-06-29
Filing date: 2019-06-29
Publication date: 2020-04-14
Anticipated expiration: 2029-06-29

Abstract

The utility model discloses a self-priming centrifugal pump, a connecting rod is arranged in a pump body and a cavity, one end of the connecting rod, which is far away from a motor set, is fixedly connected with a rotating shaft A, the edge of the rotating shaft A is fixedly connected with an impeller A, the surface of the connecting rod is fixedly connected with a baffle plate, the lower surface in the pump body is fixedly connected with a rotating shaft B, the edge of the rotating shaft B is fixedly connected with an impeller B, and the diameters of the rotating shaft A and the impeller A are longer than those of the rotating shaft; has the advantages that: the effect by impeller A and pivot A inhales water from the outside with the air of taking out together, water and air drive impeller A through pivot A, pivot B drive impeller B and rotate, two rotation directions are different completely for reach the effect of complete mixing after the high-speed rotation, afterwards, because the velocity of flow of water reduces suddenly, the air is that the gas that will be lighter than water can go upward, gas will be followed from the gas-water mixture and is discharged, later through air outlet B, air outlet A's effect is discharged.

Description

Self-suction centrifugal pump

Technical Field

The utility model relates to a centrifugal pump technical field particularly, relates to a from inhaling formula centrifugal pump.

Background

Self-priming centrifugal pump belongs to one kind of centrifugal pump. The centrifugal pump is characterized in that the pump does not need to be filled before the first start, and the pump does not need to be filled when the centrifugal pump is started again, and the gas in the suction pipe can be automatically pumped out to normally convey liquid.

The pump is additionally provided with a suction chamber at the inlet, a suction pipe is arranged above the central line of an impeller, a part of liquid is remained in the suction chamber after the pump is stopped, when the pump is started again, the liquid remained in the suction chamber circulates in the pump, gas in a suction pipeline is sucked into the impeller, the liquid enters a gas-liquid separation chamber additionally arranged at the outlet after the liquid is mixed in the impeller (internal mixing type) or at the impeller outlet (external mixing type) to separate the gas from the liquid, the gas is discharged out of the pump, the liquid flows back to the suction chamber until the suction pipe is full of the liquid, and the liquid is normally conveyed. The self-suction process can be completed within tens of seconds, and the self-suction capacity reaches more than 9m of water column.

And the common self-suction centrifugal pump has low efficiency and long time consumption when in use.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a self-priming centrifugal pump to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a self-suction centrifugal pump comprises a motor group, a telescopic rod, a fixing plate, a pump body, an air outlet A, a water suction port, a water stop plate, a switch, an air outlet B, a cavity, a rotating shaft A, an impeller B, a rotating shaft B and a connecting rod, wherein the connecting rod is arranged in the pump body and the cavity, one end of the connecting rod, far away from the motor group, is fixedly connected with the rotating shaft A, the edge of the rotating shaft A is fixedly connected with the impeller A, the surface of the connecting rod is fixedly connected with a partition plate, the lower surface in the pump body is fixedly connected with the rotating shaft B, the edge of the rotating shaft B is fixedly connected with the impeller B, the diameter of the rotating shaft A and the impeller A is longer than that of the rotating shaft B and the impeller B, the upper surface of the cavity is provided with, and a water suction port is arranged below the air outlet A and is communicated with the pump body.

Preferably, the lower surface of the motor set is fixedly connected with a telescopic rod, and one end of the telescopic rod, far away from the motor set, is fixedly connected with a sucker.

Preferably, the upper surface of the motor set is fixedly connected with a connecting plate, and one side of the connecting plate is connected with a fixing plate.

Preferably, one side of the fixing plate is fixedly connected with a pump body, the upper surface of the pump body is fixedly communicated with a cavity, and the pump body is communicated with the inside of the cavity.

Preferably, one side of the water suction opening is fixedly connected with a hinge, the water suction opening is connected with a water stop plate through the hinge, and the edge of the water stop plate is fixedly connected with a waterproof strip.

Preferably, a switch is arranged below the water suction port, and the lower surface of the pump body is fixedly connected with a supporting plate through screws and nuts.

Preferably, the switch is electrically connected with the motor set, and the motor set is connected with the rotating shaft A and the rotating shaft B through couplers.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) when the air-water mixing device is used, water and pumped air are sucked together from the outside under the action of the impeller A and the rotating shaft A, the water and the air drive the impeller A and the rotating shaft B to drive the impeller B to rotate through the rotating shaft A, the two rotating directions are completely different, so that a completely mixing effect is achieved after the water and the air rotate at high speed, and then, because the flow rate of the water is suddenly reduced, the air which is lighter than the water can go upwards, the air can be discharged from the air-water mixture, and then the air is discharged through the action of the air outlet B and the air outlet A;

(2) when the air is discharged, the water stop plate is closed under the action of the hinge, and the cavity and the water inside the pump body are prevented from flowing out under the action of the waterproof strip and the water stop plate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a self-priming centrifugal pump according to an embodiment of the present invention;

fig. 2 is a schematic diagram of the internal structure of a self-priming centrifugal pump according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a rotating shaft B in the self-priming centrifugal pump according to the embodiment of the present invention.

Reference numerals: 1. a motor unit; 2. a telescopic rod; 3. a suction cup; 4. a connecting plate; 5. a fixing plate; 6. a pump body; 7. a cavity; 8. an air outlet A; 9. a water suction port; 10. a hinge; 11. a water stop plate; 12. a waterproof strip; 13. a switch; 14. a support plate; 15. a partition plate; 16. an air outlet B; 17. a rotating shaft A; 18. an impeller A; 19. an impeller B; 20. a rotating shaft B; 21. a connecting rod.

Detailed Description

The following description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings:

referring to fig. 1-3, a self-priming centrifugal pump according to an embodiment of the present invention includes a motor assembly 1, a telescopic rod 2, a fixing plate 5, a pump body 6, an air outlet A8, a water suction port 9, a water stop plate 11, a switch 13, an air outlet B16, a cavity 7, a rotating shaft a17, an impeller a18, an impeller B19, a rotating shaft B20, and a connecting rod 21, wherein a connecting rod 21 is disposed inside the pump body 6 and the cavity 7, one end of the connecting rod 21 away from the motor assembly 1 is fixedly connected with a rotating shaft a17, an edge of the rotating shaft a17 is fixedly connected with an impeller a18, a surface of the connecting rod 21 is fixedly connected with a partition 15, a lower surface inside the pump body 6 is fixedly connected with a rotating shaft B20, an edge of the rotating shaft B20 is fixedly connected with an impeller B19, the rotating shaft a17 and the impeller a18 are longer than diameters of the rotating shaft B20 and the impeller B19, an integrally, an integrally formed air outlet A8 is formed in one side, away from the fixed plate 5, of the cavity 7, a water suction port 9 is formed below the air outlet A8, and the water suction port 9 is communicated with the pump body 6.

Through the above technical scheme of the utility model, when using, inhale water from the outside with the air of taking out together by impeller A18 and pivot A17's effect, water and air are driving impeller A18 through pivot A17, pivot B20 drives impeller B19 and rotates, two rotation directions are different completely, make to reach the effect of complete mixing after the high-speed rotation, afterwards, because the velocity of flow of water reduces suddenly, the air is that the gas that will be lighter than water can upwards walk, gas will be followed the air-water mixture and is discharged out, afterwards, through air outlet B16, the effect of air outlet A8 is discharged, and when the exhaust air, close sealing plate 11 through hinge 10's effect, through the effect of waterproof strip 12 with sealing plate 11, prevent cavity 7 and the inside rivers play of the pump body 6.

When the water pump is applied specifically, a telescopic rod 2 is fixedly connected to the lower surface of the motor group 1, a suction disc 3 is fixedly connected to one end, away from the motor group 1, of the telescopic rod 2, a connecting plate 4 is fixedly connected to the upper surface of the motor group 1, a fixing plate 5 is connected to one side of the connecting plate 4, a pump body 6 is fixedly connected to one side of the fixing plate 5, a cavity 7 is fixedly communicated with the upper surface of the pump body 6, the pump body 6 is communicated with the interior of the cavity 7, a hinge 10 is fixedly connected to one side of a water suction opening 9, the water suction opening 9 is connected with a water stop plate 11 through the hinge 10, a waterproof strip 12 is fixedly connected to the edge of the water stop plate 11, a switch 13 is arranged below the water suction opening 9, a support plate 14 is fixedly connected to the lower surface of the pump body 6 through, the motor group 1 is connected with the rotating shaft A17 and the rotating shaft B20 through couplings.

In summary, with the aid of the technical solution of the present invention, when in use, water is sucked from the outside together with the pumped air by the action of the impeller a18 and the rotating shaft a17, the water and the air drive the impeller a18 through the rotating shaft a17, the rotating shaft B20 drives the impeller B19 to rotate, the two rotating directions are completely different, so that the effect of complete mixing is achieved after high-speed rotation, and then, because the flow rate of water is suddenly reduced, the air is lighter than water and can go upwards, the air can be discharged from the air-water mixture, and then discharged through the action of the air outlet B16 and the air outlet A8, and when the air is discharged, the water stop plate 11 is closed through the action of the hinge 10, and the water inside the cavity 7 and the pump body 6 is prevented from flowing out through the action of the waterproof strip 12 and the water stop plate 11.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The self-suction centrifugal pump is characterized by comprising a motor group (1), a telescopic rod (2), a fixing plate (5), a pump body (6), an air outlet A (8), a water suction port (9), a water stop plate (11), a switch (13), an air outlet B (16), a cavity (7), a rotating shaft A (17), an impeller A (18), an impeller B (19), a rotating shaft B (20) and a connecting rod (21), wherein the connecting rod (21) is arranged inside the pump body (6) and the cavity (7), one end, far away from the motor group (1), of the connecting rod (21) is fixedly connected with the rotating shaft A (17), the edge of the rotating shaft A (17) is fixedly connected with the impeller A (18), the surface of the connecting rod (21) is fixedly connected with a partition plate (15), the lower surface inside the pump body (6) is fixedly connected with the rotating shaft B (20), and the edge of the rotating shaft B (20), the rotary shaft A (17) and the impeller A (18) are longer than the rotary shaft B (20) and the impeller B (19) in diameter, an integrally formed air outlet B (16) is formed in the upper surface of the cavity (7), an integrally formed air outlet A (8) is formed in one side, away from the fixed plate (5), of the cavity (7), a water suction port (9) is formed in the lower portion of the air outlet A (8), and the water suction port (9) is communicated with the pump body (6).

2. The self-priming centrifugal pump of claim 1, wherein a telescopic rod (2) is fixedly connected to the lower surface of the motor unit (1), and a suction cup (3) is fixedly connected to one end of the telescopic rod (2) far away from the motor unit (1).

3. The self-priming centrifugal pump of claim 1, wherein a connecting plate (4) is fixedly connected to the upper surface of the motor unit (1), and a fixing plate (5) is connected to one side of the connecting plate (4).

4. The self-priming centrifugal pump of claim 1, wherein a pump body (6) is fixedly connected to one side of the fixing plate (5), a cavity (7) is fixedly communicated with the upper surface of the pump body (6), and the pump body (6) is communicated with the inside of the cavity (7).

5. The self-priming centrifugal pump according to claim 1, wherein a hinge (10) is fixedly connected to one side of the water suction port (9), a water stop plate (11) is connected to the water suction port (9) through the hinge (10), and a waterproof strip (12) is fixedly connected to the edge of the water stop plate (11).

6. The self-priming centrifugal pump according to claim 1, characterized in that a switch (13) is arranged below the water suction port (9), and a supporting plate (14) is fixedly connected to the lower surface of the pump body (6) through a screw nut.

7. The self-priming centrifugal pump according to claim 1, wherein the switch (13) is electrically connected to the motor unit (1), and the motor unit (1) is connected to the rotating shaft a (17) and the rotating shaft B (20) through couplings.