CN208487057U - A kind of water pump - Google Patents

Abstract

The utility model discloses a kind of water pumps, including pump cover, impeller and the motor for driving wheel rotation, pump cover is provided with water inlet pipe and accommodates the first chamber of impeller, water inlet pipe is provided with the first snorkel, first snorkel is provided with the first pipe portion towards the extension of the inside of water inlet pipe, and the first pipe portion extends towards the direction close to first chamber.A kind of water pump of the utility model is by being provided with the first snorkel towards the first pipe portion extended in water inlet pipe, and extend the first pipe portion towards the direction close to first chamber, so that the free end of the first pipe portion is closer to first chamber, improve the water velocity at the first snorkel nozzle, the resistance that water flow generates the first snorkel nozzle is reduced, and then promotes intake negative-pressure in the first snorkel pipe, to increase the air capacity introduced in water, it enables water body oxygen-containing sufficiently, improves massage and relaxation effect.

Description

A kind of water pump

Technical field

The utility model relates to fluid device more particularly to a kind of water pumps.

Background technique

The sanitary bath equipments such as existing bathtub, foot-washing basin generally use installation water pump to realize that water flow jet is massaged, in order to increase Add the oxygen content in massage current, can be provided with the first snorkel at the water inlet pipe of water pump, the first snorkel and water inlet pipe it is interior Portion's connection.

Under the impeller-driven of water pump, the flowing of water makes to generate intake negative-pressure in water inlet pipe, and in turn, outside air is in atmosphere It is entered in water inlet pipe under the action of pressure via the first snorkel.In water inlet pipe, air and water are mixed to form with bubble Water flow.Finally, the water flow with bubble flows into the water container of bathtub, foot-washing basin etc..

Because the water body in water container contains bubble, the oxygen-containing abundance of water body, even if human body is impregnated or is pressed for a long time in water It rubs, fatigue will not be generated because of skin anoxic, thus human skin can be made sufficiently to be loosened.

However, because there is the stiction to water flow in the tube wall of water inlet pipe, close to the water velocity of the tube wall of water inlet pipe Small, hydraulic pressure rises, thus, the intake negative-pressure generated at the tube wall of water inlet pipe is small, finally, the air for causing the first snorkel to introduce Measure it is extremely limited, influence massage and relaxation effect.

Utility model content

The utility model aims to solve the problem that above-mentioned mentioned technical problem, provides a kind of water pump, makes in the first snorkel pipe Negative pressure increases, to increase the air capacity introduced in water, enables water body oxygen-containing sufficiently, improves massage and relaxation effect.

The utility model is realized through the following technical scheme:

A kind of water pump, including pump cover, impeller and the motor for driving wheel rotation, pump cover is provided with water inlet pipe and accommodating impeller First chamber, water inlet pipe is provided with the first snorkel, and the first snorkel is provided with the first pipe towards the extension of the inside of water inlet pipe Portion, the first pipe portion extend towards the direction close to first chamber.

Preferably, first chamber is provided with the inlet opening of connection water inlet pipe, and the free end of the first pipe portion is set to inlet opening It is interior.

Further, the center-biased setting of the free end and inlet opening of the first pipe portion.

Further, the axis direction of the first pipe portion and the axis direction of impeller are arranged in parallel.

Preferably, the free end of the first pipe portion is arranged towards the direction close to impeller.

Preferably, pump cover is provided with the outlet pipe of connection first chamber and the second snorkel for being connected to outlet pipe.

Further, the cross-sectional area of the inner surface of outlet pipe is less than the cross-sectional area of the inner surface of water inlet pipe.

Further, the second snorkel is set to the one end of outlet pipe close to first chamber.

Further, the axis of water inlet pipe is overlapped with the axis of outlet pipe, and outlet pipe is set in water inlet pipe.

Further, first chamber is provided with the mounting portion for installing motor, and it is close that the second snorkel is set to pump cover The side of mounting portion.

Beneficial effect is: compared with prior art, a kind of water pump of the utility model is by being provided with the first snorkel The first pipe portion extended in towards water inlet pipe, and extend the first pipe portion towards the direction close to first chamber, so that the first pipe portion Free end improves the water velocity at the first snorkel nozzle closer to first chamber, reduces water flow to the first snorkel The resistance that nozzle generates, and then promote intake negative-pressure in the first snorkel pipe and to increase the air capacity introduced in water enable water body It is oxygen-containing abundant, improve massage and relaxation effect.

Detailed description of the invention

It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used briefly describes.

Obviously, described attached drawing is a part of the embodiment of the utility model, rather than whole embodiments, this field Technical staff without creative efforts, can also be obtained according to these attached drawings other design schemes and attached Figure.

Fig. 1 is the structural schematic diagram of pump cover in a kind of water pump of the utility model；

Fig. 2 is the cut-away illustration of Fig. 1 pump cover.

Specific embodiment

It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.

Obviously, described embodiment is a part of the embodiment of the utility model, rather than whole embodiments, is based on The embodiments of the present invention, those skilled in the art's other implementations obtained without creative efforts Example, belongs to the protection scope of the utility model.

In addition, all connection relationships being previously mentioned in text, not singly refer to that component directly connects, and referring to can be according to specific reality Situation is applied, by adding or reducing connection auxiliary, to form more preferably connection structure.Each technology in the utility model is special Sign, can be with combination of interactions under the premise of not conflicting conflict.

As shown in Figure 1 and Figure 2, a kind of water pump, including pump cover 1, impeller and the motor for driving wheel rotation, pump cover 1 is provided with The first chamber 3 of water inlet pipe 2 and accommodating impeller, water inlet pipe 2 are provided with the first snorkel 4.Impeller and motor are not drawn into.

Under the driving of the impeller of water pump, water flow can generate intake negative-pressure when passing through water inlet pipe 2, in turn, the first snorkel 4 It introduces external air into water inlet pipe 2.

Intake negative-pressure is determined that hydraulic pressure is smaller or atmospheric pressure is bigger by the difference of atmospheric pressure and hydraulic pressure, the first ventilation The air capacity that pipe 4 introduces is more.

Air is mixed to form bubble with water flow in water inlet pipe 2, flows into the containers such as bathtub, foot-washing basin then as water flow It is interior, finally, water impact human body massaged and bubble make water body it is oxygen-containing sufficiently, human body for a long time impregnate in water will not be tired Labor, and then loosen human body sufficiently.

However, due to the stiction of fluid, the water velocity close to the tube wall of water inlet pipe 2 is small, in water inlet pipe 2 The water velocity of the heart is big.

Meanwhile according to hydrodynamics Bernoulli's theorem " flow velocity is faster, fluid generate pressure with regard to smaller ", thus, water inlet Hydraulic pressure at the tube wall of pipe 2 is larger.

Add, the first conventional snorkel 4 be the aperture on water inlet pipe 2, intake negative-pressure depend on atmospheric pressure with The difference of hydraulic pressure, when hydraulic pressure pressure is larger, intake negative-pressure is smaller, thus, it is only logical in the tube wall aperture connection first of water inlet pipe 2 Tracheae 4, the air capacity that the first snorkel 4 can introduce are extremely limited.

To improve the intake negative-pressure at the first snorkel 4, the first snorkel 4 is provided with towards the extension of the inside of water inlet pipe 2 First pipe portion 6, the first pipe portion 6 extend towards the direction close to first chamber 3.

First pipe portion 6 extends towards the direction close to first chamber 3, air stream can be made to along water (flow) direction, and then make First snorkel 4 can introduce air into water pump, and water is avoided to spray from the first snorkel 4.

First pipe portion 6 is towards extending in water inlet pipe 2, so that the free end of the first pipe portion 6 is close to the center of water inlet pipe 2, that is, It is located proximate to the free end of the first pipe portion 6 towards flow velocity in water inlet pipe 2 is big.

That is, the water flow velocity of 4 oral area of the first snorkel can be improved in the case where not needing to promote pump power Degree, and then hydraulic pressure is reduced, finally reduce the difference of atmospheric pressure and hydraulic pressure, improves intake negative-pressure, meanwhile, flow direction is again Air is not flowed to and generate obstruction, ultimately increases the air capacity of the first snorkel 4 introducing.

In addition, the free end of the first pipe portion 6 improves the water flow velocity at 4 nozzle of the first snorkel closer to first chamber 3 Degree, and then intake negative-pressure in the first snorkel pipe is promoted, to increase the air capacity introduced in water, enables water body oxygen-containing sufficiently, mention Height massage and relaxation effect.

For the air capacity for further increasing the introducing of the first snorkel 4, first chamber 3 can be made to be provided with connection water inlet pipe 2 Inlet opening 5, the free end of the first pipe portion 6 is set in inlet opening 5.

Inlet opening 5 is that water is usually uniquely also not excluded for because of it certainly by the channel that water inlet pipe 2 enters first chamber 3 He needs to be arranged additional hole, but diameter can be significantly less than the diameter of inlet opening 5.

Since the cross-sectional area of inlet opening 5 is less than the cross-sectional area of the inner surface of water inlet pipe 2, and the flow in water inlet pipe 2 It is equal with the flow of inlet opening 5, thus, the water velocity at inlet opening 5 is bigger than the water velocity of water inlet pipe 2, inlet opening 5 It is big to locate intake negative-pressure of the intake negative-pressure generated also than generating at water inlet pipe 2, is conducive to the first snorkel 4 and introduces more skies Gas improves massage and the relaxation effect of water pump.

Meanwhile first pipe portion 6 free end be arranged in inlet opening 5, air is shredded by impeller, form more bubbles, Meets the needs of containers such as bathtub or foot-washing basin are to more bubble.

To extend the retention time of bubble in water, the free end of the first pipe portion 6 can be made to set towards the direction close to impeller It sets.

The air of introducing is shredded rapidly by impeller, generates more tiny bubbles, tiny bubble in water when retaining Between it is longer, improve the rate of oxygen of water, human body impregnate for a long time in water will not fatigue, loosen human body sufficiently.

Meanwhile first the free end of pipe portion 6 be arranged towards the direction close to impeller so that the air that first snorkel 4 introduces Flow direction is identical as water (flow) direction or only exists lesser angle, and the flow direction of air does not need to change, reduce into Atmidometer.

Since the impeller of water pump is to drive water flow to flow by rotating, the flow velocity close to impeller center is lower, is into one Step improves the intake negative-pressure of the free end of the first pipe portion 6, that is, in order to improve the water of the free end by the first pipe portion 6 The center-biased of flow velocity degree, the free end and inlet opening 5 that can make the first pipe portion 6 is arranged.

For the height for reducing the prominent containers such as bathtub or foot-washing basin of water pump, the axis direction and impeller of water inlet pipe 2 can be made Axis direction bias setting, be arranged that is, the axis direction of the axis direction of water inlet pipe 2 and inlet opening 5 biases.

For the air capacity for further increasing the introducing of the first snorkel 4, the axis direction and impeller of first pipe portion 6 can be made Axis direction is arranged in parallel, that is, water (flow) direction is identical as air approach axis.

Water (flow) direction is identical as air approach axis, after air is mixed with water flow, does not need the flow direction of transformation air, Be conducive to introduce more air.

In general, water flow can enter first chamber 3 behind inlet opening 5, in first chamber 3, water flow is mentioned by impeller propelled The kinetic energy of high water flow can be the speed of water flow, be also possible to the pressure of water flow.

To increase the air capacity for entering water pump, pump cover 1 can also be made to be provided with the outlet pipe 7 of connection first chamber 3 and connect Second snorkel 8 of pass-out water pipe 7.

To ensure that water flow has enough dynamic impact human bodies, the cross-sectional area of the inner surface of outlet pipe 7 can be made to be less than The cross-sectional area of the inner surface of water inlet pipe 2.

That is, making the cross-sectional area of the inner surface of outlet pipe 7 be less than the interior table of water inlet pipe 2 in the case where flow is equal The cross-sectional area in face increases the kinetic energy of water flow so that the flow rate of water flow of outlet pipe 7 increases, and makes human body stress's detail.

Clearly as impeller increases the kinetic energy of water flow, so that the speed and pressure of water flow increase simultaneously, the second snorkel 8 air inlet effect is unobvious.

Air to enable the second snorkel 8 to introduce is sufficiently mixed with water flow, generates more bubbles, can make the Two snorkels 8 are set to outlet pipe 7 close to one end of first chamber 3.

For the installation for simplifying water pump, the axis of water inlet pipe 2 and the axis of outlet pipe 7 can be made to be overlapped, outlet pipe 7 is set to In water inlet pipe 2, that is, the containers such as bathtub or foot-washing basin only need to be arranged the mounting hole of an accommodating water inlet pipe 2, so that it may meet The needs of water pump are installed.

In general, first chamber 3 is provided with the mounting portion for installing motor.

For convenience of the manufacturing of pump cover 1, the second snorkel 8 is set to pump cover 1 close to the side of mounting portion.Due to pump cover 1 is usually injection molding or compression molding, and the second snorkel 8 is set to pump cover 1 close to the side of mounting portion, need to only be taken off using original Mould direction does not need individually to increase stripping direction for the second snorkel 8, and it is convenient to manufacture.

Above embodiments are not limited to the technical solution of the embodiment itself, can be incorporated between embodiment new Embodiment.Above embodiments are only to illustrate the technical solution of the utility model and are not intended to limit it, all without departing from this Any modification of utility model spirit and scope or equivalent replacement should all cover the range in technical solutions of the utility model It is interior.

Claims (10)

1. a kind of water pump, including pump cover (1), impeller and the motor for driving wheel rotation, pump cover (1) be provided with water inlet pipe (2) and The first chamber (3) of impeller is accommodated, water inlet pipe (2) is provided with the first snorkel (4), which is characterized in that the first snorkel (4) is set It is equipped with the first pipe portion (6) towards the extension of the inside of water inlet pipe (2), the first pipe portion (6) is prolonged towards the direction close to first chamber (3) It stretches.

2. a kind of water pump according to claim 1, which is characterized in that the first chamber (3) is provided with connection water inlet pipe (2) inlet opening (5), the free end of the first pipe portion (6) are set in inlet opening (5).

3. a kind of water pump according to claim 2, which is characterized in that the free end and inlet opening of first pipe portion (6) (5) center-biased setting.

4. a kind of water pump according to claim 2 or 3, which is characterized in that the axis direction and leaf of first pipe portion (6) The axis direction of wheel is arranged in parallel.

5. a kind of water pump according to claim 2, which is characterized in that the free end of first pipe portion (6) is towards close to leaf The direction of wheel is arranged.

6. a kind of water pump according to claim 1, which is characterized in that the pump cover (1) is provided with connection first chamber (3) Outlet pipe (7) and the second snorkel (8) for being connected to outlet pipe (7).

7. a kind of water pump according to claim 6, which is characterized in that the cross-sectional area of the inner surface of the outlet pipe (7) Less than the cross-sectional area of the inner surface of water inlet pipe (2).

8. a kind of water pump according to claim 6, which is characterized in that second snorkel (8) is set to outlet pipe (7) Close to the one end of first chamber (3).

9. a kind of water pump according to claim 6, which is characterized in that the axis of the water inlet pipe (2) and outlet pipe (7) Axis is overlapped, and outlet pipe (7) is set in water inlet pipe (2).

10. a kind of water pump according to claim 9, which is characterized in that the first chamber (3) is provided with for installing electricity The mounting portion of machine, the second snorkel (8) are set to the side of pump cover (1) close to mounting portion.