CN219197717U - Water pump connecting flow passage structure and water pump - Google Patents

Abstract

The utility model relates to a water pump connecting flow passage structure, which comprises a pump body, wherein one side of the pump body is connected with a motor cover through a plurality of connecting pieces, a shaft hole is formed in the center of the motor cover, a second connecting hole is formed in the position, corresponding to the shaft hole, of the pump body, the second connecting hole is internally communicated with a second flow passage, the second flow passage is arranged at the bottom of the second connecting hole, a second rotating groove for placing a secondary impeller is formed in the other side of the pump body, one side of the second connecting hole, which faces the second rotating groove, is a water flow passage water outlet, one side, far away from the water flow passage water outlet, of the second rotating groove is provided with a pump head, a first flow passage communicated with the second flow passage is formed in the bottom of the pump head, and a water through hole is formed in the top of the first flow passage. The structure is characterized in that the first flow passage is positioned at the bottom of the pump body, when the pump body runs, water can naturally enter the first flow passage by means of the gravity effect, and then is sprayed out after being pressurized by the second-stage impeller in the second flow passage, and the function of pumping the water can be realized only by the second-stage impeller.

Description

Water pump connecting flow passage structure and water pump

Technical Field

The utility model relates to the technical field of water pumps, in particular to a water pump connecting flow passage structure and a water pump.

Background

A water pump is a machine that delivers or pressurizes a liquid. The mechanical energy or other external energy of the prime mover is transmitted to the liquid, so that the energy of the liquid is increased, the liquid is mainly used for conveying the liquid including water, oil, acid-alkali liquor, emulsion, suspension emulsion, liquid metal and the like, and can also be used for conveying liquid, gas mixture and liquid containing suspended solids.

The current technology has the following disadvantages: the water flow passage connecting part of the electric pump is too high, so that excessive resistance can be generated on water flow, kinetic energy loss is caused, and the conversion efficiency of water inflow of the primary impeller can be reduced. Since the water flow passage is located higher than the water inlet, the secondary impeller must rely on the pressurized supply of the primary impeller, which reduces the conversion efficiency of the kinetic energy of the secondary impeller. In addition, if the primary impeller flow path is blocked, the secondary impeller flow will also decrease because the secondary impeller is more loaded through the flow path to absorb Cheng Gonglv, which limits the overall pump water absorption efficiency.

Disclosure of Invention

In order to solve the problems, the utility model provides a water pump connecting flow passage structure and a water pump, which can reduce the kinetic energy loss of an impeller and improve the suction stroke of a pump body.

In order to achieve the above purpose, the water pump connecting flow passage structure comprises a pump body, one side of the pump body is connected with a motor cover through a plurality of connecting pieces, a shaft hole is formed in the center of the motor cover, a second connecting hole is formed in the position, corresponding to the shaft hole, of the pump body, the second connecting hole is internally communicated with a second flow passage, the second flow passage is arranged at the bottom of the second connecting hole, a second rotating groove for placing a secondary impeller is formed in the other side of the pump body, one side, facing the second rotating groove, of the second connecting hole is a water flow passage water outlet, a pump head is assembled on one side, far away from the water flow passage water outlet, of the second rotating groove, a first flow passage communicated with the second flow passage is formed in the bottom of the pump head, and a water through hole is formed in the top of the first flow passage. The structure is characterized in that the first flow passage is positioned at the bottom of the pump body, when the pump body runs, water can naturally enter the first flow passage by means of the gravity effect, and then is pressurized by the second-stage impeller in the second flow passage and then sprayed out, and the second-stage impeller can realize a certain water pumping function without the pressurized supply of the first-stage impeller.

The first flow channel and the second flow channel are communicated to form a water flow channel, and the whole water flow channel is arranged in a J-shaped shape; the pump head is provided with a drain hole at the bottom, and the drain hole is communicated with the water flow passage. The water flow passage can realize the function of conveying water into the second rotary groove, and can drain the residual water in the water flow passage by using the drain hole at the bottom after the conveying is completed.

Still further scheme is be equipped with the baffle between pump head and the pump body, set up first connecting hole on the baffle, first connecting hole is connected with the second groove that changes, first connecting hole connects the inside first groove that changes that is used for placing one-level impeller of pump head, first groove and limbers intercommunication, first groove has been seted up the water inlet on one side that first connecting hole was kept away from to first groove. The structure is characterized in that the baffle is arranged between the pump body and the pump head, the space in the pump body is divided into two pump cavities by the baffle, the two pump cavities correspond to the first rotating groove and the second rotating groove respectively, and the pump is provided with and only has one water flow passage as a fluid path when in operation, so that the purpose of increasing the flow velocity of water in the water flow passage is realized, and the operation efficiency of the pump body is ensured.

The further scheme is that the top of the pump head is provided with a water injection hole and an exhaust hole. The water injection hole and the exhaust hole arranged on the pump head can be matched with the water flow passage at the bottom to empty the air in the pump body.

The utility model also provides a water pump, which comprises the water pump connecting flow passage structure.

Compared with the prior art, the water pump connecting flow passage structure has the advantages that the water flow passage is arranged at the whole position lower than the water inlet, water can naturally enter the water flow passage by means of the gravity effect, more importantly, the water flow passage, namely the communicating position of the second flow passage and the second connecting hole, is arranged at the bottom of the second connecting hole, and the second connecting hole is coaxial with the water inlet under the general arrangement condition, so that the water inlet is higher in horizontal position than the water flow passage and enters the structural design of the inlet of the second rotary groove, the water can naturally flow into the pump cavity corresponding to the second impeller by utilizing gravity, the second impeller can also convey the water without the pressurized supply of the first impeller, the technical effect of reducing the power consumption when the first impeller conveys the water is achieved, the water inflow amount can be increased by the arrangement of the first impeller, and the water conveying efficiency of the whole pump during operation is more efficient, and the water pump has the advantages of simple structure and high working efficiency.

Drawings

FIG. 1 is a schematic view of a pump body according to embodiment 1 of the present utility model;

FIG. 2 is a cross-sectional view of a pump body according to embodiment 1 of the present utility model;

FIG. 3 is an overall sectional view of embodiment 1 of the present utility model.

Wherein: the pump body 1, the motor cover 2, the shaft hole 3, the second connecting hole 4, the water flow passage 5, the secondary impeller 6, the second rotary groove 7, the pump head 8, the first connecting hole 9, the primary impeller 10, the first rotary groove 11, the first flow passage 12, the second flow passage 13, the water draining hole 14, the water injecting hole 15, the air exhausting hole 16, the water inlet 17, the connecting piece 18, the water flow passage water outlet 19, the water draining hole 20 and the baffle 21.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Example 1

As shown in fig. 1, fig. 2 and fig. 3, the water pump connection flow channel structure described in this embodiment includes a pump body 1, one side of the pump body 1 is connected with a motor cover 2 through a plurality of connecting pieces 18, a shaft hole 3 is provided at the center position of the motor cover 2, a second connection hole 4 is provided at the position corresponding to the shaft hole 3 on the pump body 1, the second connection hole 4 is internally communicated with a second flow channel 13, the second flow channel 13 is provided at the bottom of the second connection hole 4, a second rotating groove 7 for placing a secondary impeller 6 is provided at the other side of the pump body 1, one side of the second connection hole 4 facing the second rotating groove 7 is a water flow channel water outlet 19, one side of the second rotating groove 7 far away from the water flow channel water outlet 19 is provided with a pump head 8, a first flow channel 12 communicated with the second flow channel 13 is provided at the bottom of the pump head 8, and a water through hole 20 is provided at the top of the first flow channel 12.

As shown in fig. 2, the first flow passage 12 and the second flow passage 13 are communicated to form a water flow passage 5; the pump head 8 is provided with a drain hole 14 at the bottom, and the drain hole 14 is communicated with the water flow passage 5.

As shown in fig. 2, a baffle 21 is disposed between the pump head 8 and the pump body 1, a first connecting hole 9 is formed in the baffle 21, the first connecting hole 9 is connected with the second rotating groove 7, the first connecting hole 9 is connected with a first rotating groove 11 inside the pump head 8 for placing the primary impeller 10, the first rotating groove 11 is communicated with the water through hole 20, and a water inlet 17 is formed in one side, far away from the first connecting hole 9, of the first rotating groove 11.

As shown in fig. 3, the top of the pump head 8 is provided with a water injection hole 15 and an exhaust hole 16.

When the water pump is used, water enters the pump head 8 through the water inlet 17, the primary impeller 10 rotates, the water enters the water flow channel 5 through the water through hole 20 after being pressurized by the primary impeller 10, is sucked into the second rotary groove 7 by the secondary impeller 6, is pressurized by the secondary impeller 6 in the second rotary groove 7, and is sprayed out from the water outlet of the pump body.

Example 2

As shown in fig. 3, the present utility model provides a water pump, which includes the water pump connection flow channel structure described in embodiment 1.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. The utility model provides a runner structure is connected to water pump, includes pump body (1), its characterized in that, pump body (1) one side is connected with motor cover (2) through a plurality of connection piece (18), shaft hole (3) have been seted up to motor cover (2) central point put, and second connecting hole (4) have been seted up in the position corresponding with shaft hole (3) in pump body (1), inside intercommunication second runner (13) of second connecting hole (4), second runner (13) set up in the lower part of second connecting hole (4), and the opposite side of pump body (1) is equipped with second change groove (7) that are used for placing second impeller (6), and one side that second change groove (4) towards second change groove (7) is water runner delivery port (19), and one side that water runner delivery port (19) were kept away from to second change groove (7) is equipped with pump head (8), first runner (12) with second runner (13) intercommunication are seted up to pump head (8) bottom, first runner (12) top has seted up through hole (20).

2. The water pump connecting flow passage structure according to claim 1, characterized in that the first flow passage (12) and the second flow passage (13) are communicated as a water passing flow passage (5); the bottom of the pump head (8) is provided with a drain hole (14), and the drain hole (14) is communicated with the water flow passage (5).

3. The water pump connecting flow passage structure according to claim 1, characterized in that a baffle plate (21) is arranged between the pump head (8) and the pump body (1), a first connecting hole (9) is formed in the baffle plate (21), the first connecting hole (9) is connected with the second rotating groove (7), the first connecting hole (9) is connected with a first rotating groove (11) inside the pump head (8) for placing the primary impeller (10), the first rotating groove (11) is communicated with the water through hole (20), and a water inlet (17) is formed in one side, far away from the first connecting hole (9), of the first rotating groove (11).

4. A water pump connection flow passage structure according to claim 3, characterized in that the top of the pump head (8) is provided with a water injection hole (15) and an exhaust hole (16).

5. A water pump, characterized in that the water pump comprises a water pump connecting flow channel structure according to any one of the preceding claims 1-4.

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