WO2018103691A1

WO2018103691A1 - Water suction pump and washing machine

Info

Publication number: WO2018103691A1
Application number: PCT/CN2017/114985
Authority: WO
Inventors: 吕佩师; 田云; 张刚金; 徐雯婷; 赵会杰
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2016-12-07
Filing date: 2017-12-07
Publication date: 2018-06-14
Also published as: CN108167199B; CN108167199A

Abstract

Provided are a water suction pump and a washing machine. The water suction pump comprises an impeller (4), a water suction cavity cover (5) and a pump body cover (2), wherein one side of the water suction cavity cover (5) is provided with an impeller chamber (12) accommodating the impeller (4), the other side thereof cooperates with the pump body cover (2) and forms a water suction chamber (13); the impeller chamber (12) is communicated with the water suction chamber (13); the pump body cover (2) is provided with a water suction port (8) and a water discharge port (9); a flow guide mechanism (7) and a one-way check mechanism (6) are provided in the water suction chamber (13), the flow guide mechanism (7) being in communication with the water suction port (8), and the one-way check mechanism (6) depending on its own gravity to be fitted with the flow guide mechanism (7) in a sealing manner, such that water flow unidirectionally enters the water suction chamber (13) through the water suction port (8). The water suction pump has a simple structure, a miniaturized volume, low noise and high reliability, and can avoid reverse water leakage. The water suction pump can be mounted on a washing machine, can use bath water or other reusable water resource, effectively saving water, and also can be used alone, applying the reused water to other uses such as watering flowers or irrigating fields, fully and effectively using the water resource.

Description

Water suction pump and washing machine

Technical field

The invention belongs to the field of water pumps, and in particular to a water suction pump and a washing machine.

Background technique

With the waste of global resources, energy-saving and emission reduction of various household appliances is also increasingly concerned by users of various businesses. The popularity of the washing machine greatly facilitates the user and also consumes a relatively large amount of water. How to reduce water consumption or recycle water in order to achieve water conservation has become an important research topic in the field of washing machines.

When the user washes the laundry using the washing machine, the user can reuse the larger amount of bathing water in the bathtub to achieve the purpose of saving water. At this point, it is necessary to draw the bath water into the washing machine with a suitable water pump. When the water pressure of the tap water is low, the water output is small, which also causes the water injection time of the washing machine to prolong, which affects the service life of the water inlet valve of the washing machine. The water pump can be used to inject the low-level water into the fully automatic washing machine, such as bath water, to achieve the functions of washing and rinsing, which can be conveniently used, and can also achieve the effect of recycling the washing water and saving water.

However, the ordinary water suction pump is bulky and complicated in structure, and has a mismatch with the washing machine. The water suction pump is provided with a water inlet, a water suction port and a water outlet, and the water inlet of the water suction pump installed on the washing machine is connected with the water inlet valve of the washing machine. When the water inlet valve of the washing machine is opened, the water flow can enter the suction pump through the water inlet regardless of whether the water suction pump is started or not. When the water flow is rapid, the turbulent flow is likely to occur, which may cause deformation of the one-way valve piece, resulting in a gap at the sealing portion. The seal is poor, and the water suction port may cause reverse water leakage. Therefore, there is a need for a water suction pump that is suitable for a washing machine and that has a simple structure, a small volume, and is safe and reliable.

Chinese Patent Application No. CN201521089002.9 discloses a water suction pump comprising: a casing, a volute, a fan blade, a motor and a one-way check valve, wherein the casing is formed with a suction port and a water outlet a nozzle, the volute is disposed in the housing, the volute defines a water inlet channel and a water outlet channel in the housing, the water inlet channel is connected with the water suction port, the water outlet channel is connected with the water outlet, and the volute is formed with a receiving groove. The bottom wall of the accommodating groove forms an inlet communicating with the water inlet passage, and the side wall of the accommodating groove forms an outlet communicating with the water outlet passage, and the fan blade is rotatably disposed in the accommodating groove to drive the water flow from the inlet to the outlet, and the motor is provided On the housing, and the motor shaft of the motor is connected to the fan blade, the one-way check valve is used to make the water pass through the water inlet passage in one direction in the water inlet direction, and the one-way check valve is connected to the water inlet passage. However, the structure of the water suction pump is complicated, and the sealing performance of the one-way check valve cannot be guaranteed, and there is a possibility of reverse backflow and water leakage. .

The present invention has been made in view of the above.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a water absorbing pump and a washing machine. The water absorbing pump of the present invention has a simple structure, a small size, low noise, and high reliability. The water suction pump can be installed on the washing machine, and can utilize the bath water or other water resources that can be reused twice to save water. It can also be used alone, and the secondary water can be used for watering, watering and other purposes. Use water resources.

In order to solve the above technical problems, the basic idea of adopting the technical solution of the present invention is:

A first object of the present invention is to provide a water suction pump including an impeller, a suction chamber cover and a pump body cover. One side of the suction chamber cover is provided with an impeller chamber for accommodating the impeller, and the other side is coupled with the pump body cover to form a suction chamber. a chamber, the impeller chamber is in communication with the water absorption chamber, the pump body cover is provided with a water suction port and a water outlet port, the water absorption chamber is provided with a flow guiding mechanism and a one-way check mechanism, and the flow guiding mechanism is connected with the water suction port, the one-way The non-return mechanism relies on its own gravity to seal and cooperate with the flow guiding mechanism, so that the water flow is unidirectionally entered into the water absorbing chamber by the water suction port.

In a further aspect, the flow guiding mechanism includes a guiding tube, one end of the guiding tube is connected to the water suction port, and the other end is a water outlet; the water outlet is upward, and the one-way check mechanism is disposed at the water outlet. It relies on its own gravity to seal contact with the water outlet.

In a further aspect, the water outlet is vertically upward, and the one-way check mechanism is horizontally disposed on the water outlet and in sealing contact with the water outlet.

In a further aspect, the upper portion of the suction chamber cover has a protrusion, the protrusion portion and the pump body cover enclose a receiving chamber, and the guiding tube and the one-way non-return mechanism are disposed in the receiving chamber, and The upper wall of the accommodating chamber is spaced apart; the one-way check mechanism is opened toward the space, and the water flows through the draft tube to enter the absorbing chamber unidirectionally.

In a further aspect, the one-way check mechanism includes a valve piece and a tail portion, and the valve piece is in sealing contact with the water outlet of the draft tube, and the tail portion is connected to the air guiding tube.

In a further aspect, the outer circumference of the water outlet of the draft tube is provided with an annular positioning platform, and the valve piece is embedded in the annular positioning platform and sealed on the water outlet.

In a further aspect, the outer side wall of the draft tube is provided with a connecting portion, and the one-way non-return mechanism is fixedly connected or rotatably connected through a connecting portion of the tail portion and the draft tube.

In a further aspect, the connecting portion is provided with a groove, and one side of the groove is provided with a notch, and the tail portion of the one-way non-return mechanism cooperates with the groove and the notch and is embedded in the groove to realize the one-way check mechanism and the guide. Fixation of the flow tube;

Alternatively, the tail of the one-way check mechanism is hingedly connected to the connecting portion of the draft tube.

In a further aspect, the pump body cover is further provided with a water inlet, and the water inlet end of the water inlet and/or the water outlet of the water inlet is provided with a water flow buffering mechanism for slowing the water flow intensity.

A second object of the present invention is to provide a washing machine having the suction pump.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

1. The water absorbing pump of the invention has the advantages of simple structure, small volume, low noise and high reliability. The water suction pump can be installed in a washing machine or other household appliances, and can utilize water from bath water or other water resources that can be reused twice to save water. It can also be used alone, and secondary water (such as water in a fish tank) can be used for Watering, watering and other uses to fully and effectively use water resources.

2. The water absorbing chamber of the water absorbing pump of the present invention has a flow guiding mechanism and a one-way check mechanism, and the guiding mechanism changes the direction of the water flow, and the one-way stopping mechanism utilizes its own gravity, one-way water pressure and one-way stop. The valve plate of the return mechanism and the water outlet of the draft tube are sealed and sealed to prevent water, and no elastic member is needed, the structure is more reliable, the sealing effect is better, and the problem of reverse water leakage of the water suction port can be completely solved.

3. The invention increases the buffer net at the water inlet end of the water inlet and the water outlet end of the water inlet of the pump body cover, which can slow the water flow intensity when the water is introduced into the water, and avoid the vortex water flow impinging on the valve plate, resulting in poor sealing, further The sealing effect is enhanced, and the problem of reverse water leakage of the suction port is avoided.

The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are intended to be illustrative of the invention. It is apparent that the drawings in the following description are only some embodiments, and other drawings may be obtained from those skilled in the art without departing from the drawings. In the drawing:

Figure 1 is a side view of the suction pump of the present invention;

Figure 2 is a cross-sectional view of the water absorbing pump of the present invention;

Figure 3 is a front elevational view of the pump body cover of the present invention;

Figure 4 is a front perspective view of the pump body cover of the present invention;

Figure 5 is a rear perspective view of the pump body cover of the present invention;

Figure 6 is a perspective view of the flow guiding mechanism and the one-way check mechanism of the present invention;

Figure 7 is a perspective view of the flow guiding mechanism of the present invention;

Figure 8 is a front perspective view of the one-way check mechanism of the present invention;

Figure 9 is a rear perspective view of the one-way check mechanism of the present invention;

Figure 10 is a rear perspective view of the flow guiding mechanism and the one-way check mechanism of the present invention;

Figure 11 is a cross-sectional view of a suction pump with a positioning mechanism;

Figure 12 is a perspective view of the water flow buffer mechanism.

In the picture: 1 pump body, 2 pump body cover, 3 motor, 4 impeller, 5 suction chamber cover, 6 one-way check mechanism, 7 flow guiding mechanism, 8 suction port, 9 drain port, 10 water inlet, 11 valve piece , 12 impeller chamber, 13 suction chamber, 14 positioning mechanism, 15 housing chamber, 16 projections, 17 water flow buffer mechanism, 18 annular positioning table, 19 tail, 701 diversion tube, 702 connection, 703 groove , 704 outlet.

It is to be understood that the drawings and the written description are not intended to limit the scope of the present invention in any way.

detailed description

The embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. The orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplified description, rather than indicating or implying that the device or component referred to has a specific orientation, in a specific orientation. The construction and operation are therefore not to be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

As shown in FIG. 1 to FIG. 12, the present invention provides a water suction pump comprising an impeller 4, a suction chamber cover 5 and a pump body cover 2, one side of the suction chamber cover 5 is provided with an impeller chamber 12 for accommodating the impeller, and the other is The side cooperates with the pump body cover 2 to form a water absorbing chamber 13, and the impeller chamber 12 communicates with the water absorbing chamber 13. The pump body cover 2 is provided with a water absorbing port 8 and a water discharge port 9, and the water absorbing chamber 13 is provided with a flow guiding mechanism. 7 and the one-way check mechanism 6, the flow guiding mechanism 7 is in communication with the water suction port 8, the one-way check mechanism 6 is sealed and fitted with the flow guiding mechanism 7 by its own gravity, so that the water flow is unidirectionally entered into the water absorption chamber 13 from the water suction port. .

The water suction pump includes a pump body and a pump body cover, and the pump body cover is provided with a water suction port and a water discharge port. The pump body cover is installed to cover one side of the pump body; the pump body is provided with a motor, and the motor is connected with the impeller to drive the impeller to rotate. The side of the suction chamber cover facing the pump body is provided with an impeller chamber for accommodating the impeller, and the suction chamber cover cooperates with the pump body cover toward the pump body cover to form a water absorption chamber, and the water absorption chamber communicates with the water suction port. The impeller chamber communicates with the water absorption chamber. After the impeller rotates to take away the water flow and the air, a negative pressure is formed in the impeller chamber and the suction chamber, which provides conditions for the water suction pump to absorb water from the external water source.

A flow guiding mechanism and a one-way non-return mechanism are arranged in the water absorbing chamber for unidirectionally entering the water absorbing chamber in the water absorbing pump from the water absorbing port, preventing the water in the water absorbing pump from leaking back through the water absorbing port, and avoiding the water absorbing pump Or the components of the appliance that installs the suction pump cause adverse effects, and at the same time, the suction pump is required to draw water every time, and the suction pump can work normally.

The flow guiding mechanism may be a draft tube, one is for changing the direction of the water flow entering the suction chamber from the suction port, and the other is to cooperate with the one-way check mechanism to make the installation position and the sealing direction of the one-way check mechanism A choice in order to achieve a good sealing effect. The draft tube is in communication with the water suction port, and the water flow can enter the draft tube through the water suction port, and enter the water absorption chamber through the water outlet of the draft tube. A curved portion may be provided in the draft tube to change the direction of the water flow in the draft tube. Preferably, the draft tube is arranged as a right angle bend.

The one-way check mechanism may be a one-way valve or a one-way valve piece that cooperates with the draft tube. The one-way check mechanism relies on its own gravity to seal and cooperate with the flow guiding mechanism, so that no additional elastic member is required to provide pressure to seal the one-way check mechanism and the flow guiding mechanism, thereby avoiding factors such as misalignment or deformation of the elastic member. The resulting problem of poor sealing can also reduce costs. The one-way check mechanism may be disposed in the draft tube. Preferably, the one-way check mechanism may be disposed on the water outlet to achieve a compact structure within the pump. The one-way non-return mechanism uses its own gravity, water pressure, etc. to achieve sealing contact with the water outlet.

Embodiment 1

As shown in FIG. 1-10, the flow guiding mechanism 7 of the present embodiment includes a guiding tube 701. One end of the guiding tube 701 is connected to the water suction port 8, and the other end is a water outlet 704. The water outlet 704 is upward. The one-way check mechanism 6 is disposed on the water outlet 704 and is in sealing contact with the water outlet by its own gravity.

At present, the suction port of the existing suction pump is generally disposed at the upper end or the side of the suction pump. When the suction port of the suction pump is set up vertically At the time of setting, an opening is provided on the side wall of the suction port, and after the water pump absorbs water, the water flows through the side wall of the suction port and horizontally enters the water absorption chamber. When the suction port of the water suction pump is on one side of the suction pump and horizontally disposed, the water flows through the suction port and enters the water absorption chamber horizontally. Some of the suction pump's check valves are placed in the suction port, and the one-way valve is in sealing contact with the suction port to allow the water to flow in one direction. However, in this mode, the check valve must be set according to the structure of the suction port, and the impact pressure of the water to be received is large, deformation is likely to occur, and the sealing property is liable to occur.

The guiding tube of the embodiment is matched and connected with the water suction port, such as a screw connection, and the connection is convenient and reliable, and at the same time, a sealing ring can be arranged at the joint of the two to enhance the sealing property. The draft tube is connected to the suction port, and then the direction of the water flow is changed. The bending direction of the draft tube can be set as needed to facilitate the installation of the one-way check mechanism at a suitable position.

One end of the draft tube is connected to the water suction port for connecting the draft tube and the water suction port, and the other end is a water outlet. The one-way check mechanism is arranged in cooperation with the water outlet of the draft tube for unidirectionally entering the water flow chamber from the draft tube. On the one hand, it can slow down the impact of the one-way check mechanism, on the other hand, it can also use the guide tube to change the direction of the water flow, change the position of the one-way check mechanism and the sealing direction, thereby obtaining a better sealing effect. The guiding tube cooperates with the one-way non-return mechanism to realize a way of unidirectionally entering the water absorbing chamber from the water absorbing port, and the versatility is better.

The water outlet of the draft tube is upwards, and can be vertically upward or inclined at a certain angle upward; thus, the one-way check mechanism can be placed on the water outlet to seal and contact the water outlet by its own gravity, thereby realizing one-way flow. Enter the suction chamber. The one-way check mechanism can be embedded in the water outlet or covered on the water outlet, and can be sealed by the gravity of the water outlet.

In a further embodiment, the upper portion of the suction chamber cover 5 has a protrusion 16 that encloses a receiving chamber 15, and the draft tube 701 and the one-way check mechanism 6 are disposed. In the accommodating chamber 15, and spaced from the upper wall of the accommodating chamber 15, the one-way check mechanism 6 is opened toward the space, and water flows through the draft tube 701 to enter the absorbing chamber 13 in one direction.

The arrangement of the intervals satisfies that when the one-way check mechanism 6 is opened, the water flow can be unidirectionally entered into the water absorbing chamber 13 by the water suction port 8 via the draft tube 701.

The lower part of the suction chamber cover is provided with an impeller chamber, and the upper portion has a protruding portion protruding from the impeller chamber. The projection and the pump body cover enclose a receiving chamber that is part of the suction chamber for providing a mounting draft tube and a one-way check mechanism. The first setting is to facilitate the fixing of the draft tube and the one-way check mechanism, so that the entire suction pump has a compact structure and is convenient for miniaturizing the volume of the water suction pump. Second, the one-way check mechanism can make the water flow from the water suction port into the water absorption chamber one-way, and prevent the water in the water absorption chamber from flowing back into the water suction port to leak out, causing adverse effects.

In the accommodating chamber, the water outlet of the draft tube faces upward, and the one-way check mechanism is disposed at the water outlet. When the suction pump is not working, the single The sealing mechanism is in sealing contact with the water outlet; when the water suction pump absorbs water, the water flow enters through the water suction port, and the one-way non-return mechanism is pushed upward, and then enters the water absorption chamber to be discharged. Therefore, in order to ensure the efficiency of the water absorption pump, the one-way check mechanism and the upper wall of the accommodating chamber need to have a certain interval, and the interval needs to be satisfied: when the one-way check mechanism is opened, the water flow can be guided by the water absorbing port. The flow tube enters the suction chamber in one direction.

The size of the interval is affected by the way the one-way check mechanism is connected to the deflector. When the one-way check mechanism is a flexible valve piece, such as an elastic sheet, and is fixedly connected with the draft tube, the opening and closing of the valve piece depends on the deformation of the valve piece itself, the displacement is relatively small, and the valve piece and the receiving chamber The spacing of the upper walls can be set according to the deformation of the sheet. When the one-way non-return mechanism is rotatably connected with the draft tube, the displacement of the one-way check mechanism is large when the upward rotation mechanism is turned upward, and the interval between the valve piece and the upper wall of the accommodating chamber can be set according to the magnitude of the rotation and the size of the valve piece. .

Embodiment 2

As shown in FIG. 1-10, the water outlet 704 of the draft tube 701 of the present embodiment is vertically upward, and the one-way check mechanism 6 is horizontally disposed on the water outlet 704 and is in sealing contact with the water outlet.

The draft tube is a right angle bend, and the water outlet of the draft tube is vertically upward. The one-way check mechanism relies on its own gravity to seal contact with the water outlet. The one-way check mechanism can be disposed in the water outlet, and is sealed and contacted with the water outlet by its own gravity and the adhesion of the side wall and the inner wall of the water outlet; or it can be covered on the water outlet and sealed with the water outlet by its own gravity.

plan 1:

The one-way check mechanism includes a valve plate 11, and an outer circumference of the water outlet of the draft tube is provided with an annular positioning table 18, and the valve piece 11 is embedded in the annular positioning table 18 and sealed on the water outlet 704. Regardless of whether the outlet of the draft tube faces upward or downward, an annular positioning table can be provided on the outer circumference of the water outlet. The diameter of the valve plate is larger than the diameter of the water outlet and smaller than the inner diameter of the annular positioning table. In this way, the valve piece can be embedded in the annular positioning table, fits to the outer peripheral upper end surface of the water outlet, and is sealed on the water outlet. The sealing contact between the valve plate and the water outlet can be realized, and the valve piece can be prevented from being excessively deformed into the water outlet under the action of water pressure. In this way, by using the gravity of the valve piece itself, the annular positioning table, the side wall of the valve plate and the water outlet are sealed, the sealing effect is better, and the reverse water leakage effect is better.

Scenario 2:

The guiding tube is a right angle elbow, the water inlet is connected with the water suction port and communicates with each other, the water outlet of the guiding tube is vertically upward, the one-way non-return mechanism is a valve piece, the valve piece is an elastic sheet, and the guiding tube The outer side wall is fixedly connected or rotatably connected. The valve piece is located above the water outlet of the draft tube, and has a downwardly protruding annular rib on a side facing the water outlet, the inner diameter of the annular rib being matched with the outer diameter of the water outlet of the draft tube. When the valve cover covers the water outlet, the inner wall of the annular rib is fitted to the outer wall of the water outlet to seal, so that the water in the water absorption chamber is prevented from leaking through the water suction port. This way the structure is simpler and does not require water It can be realized by transforming the inside of the mouth.

Embodiment 3

As shown in FIG. 6-10, the embodiment is further defined by the first embodiment and the second embodiment. The one-way check mechanism 6 includes a valve piece 11 and a tail portion 19, and the valve piece 11 and the air guiding tube 701 The water outlet 704 is in sealing contact, and the tail portion 19 is connected to the draft tube 701.

The one-way check mechanism can be connected to the draft tube for easy installation and fixing. The one-way check mechanism may be connected to the inside of the draft tube or to the outside of the draft tube. The valve plate acts as a seal and the tail serves as a connection. The valve piece is a circular sheet, one side of the valve piece is provided with a tail portion, and the tail portion is protruded from the outer edge of the valve piece. When the valve piece is horizontally placed, the tail portion is provided with a protrusion for mounting and fixing in the vertical direction. The tail of the valve piece and the draft tube can be connected to the draft tube by means of plugging, hinged or the like.

Further, the outer side wall of the draft tube 701 is provided with a connecting portion 702, and the one-way non-return mechanism is fixedly connected or rotatably connected to the connecting portion 702 of the draft tube through the tail portion 19.

The guiding tube is installed in the accommodating chamber of the upper part of the suction chamber cover, and the outer side wall of the guiding tube is provided with a connecting portion extending outward and upward, and the connecting portion is upwardly higher than the water outlet of the guiding tube for connection with the valve piece . The valve plate is connected with the outer side wall of the draft tube to ensure the sealing effect of the valve plate and also to open or close the valve plate.

Solution 1: The connecting portion 702 is provided with a groove 703, and one side of the groove is provided with a notch. The tail portion 19 of the one-way check mechanism cooperates with the groove 703 and is embedded in the groove to realize the one-way check mechanism and Fixation of the draft tube.

The connecting portion of the draft tube is provided with a groove, and one side of the groove is provided with a notch; the protrusion on one side of the valve piece is inserted into the groove in the vertical direction, and the tail portion protrudes outward along the outer edge of the valve piece. Partially embedded in the notch, such that the one-way non-return mechanism and the flow guiding mechanism are assembled, and are installed in the accommodating chamber of the suction chamber cover, which is safe and reliable, and has a good fixing effect. The opening and closing of the valve plate is accomplished by the deformation of the valve plate itself after being subjected to water pressure.

Preferably, a groove is formed between the tail portion of the valve piece and the valve plate, and the thickness of the groove is smaller than the thickness of the valve piece, which reduces the opening and closing force of the valve piece, and the sealing effect is better. Solution 2: The tail of the one-way check mechanism is hingedly connected to the connecting portion of the draft tube. The connecting portion of the draft tube is provided with a pin shaft, and the tail portion of the one-way check mechanism is hingedly connected with the connecting portion, and the valve piece and the tail portion are rotatable relative to the connecting portion to realize opening and closing of the valve piece.

Embodiment 4

As shown in FIG. 7 and FIG. 11 , the guiding mechanism 7 of the embodiment is further provided with a positioning mechanism 14 for positioning the one-way non-return mechanism 6 , and one end of the positioning mechanism 14 is fixedly connected with the guiding mechanism. The other end is supported on the one-way check mechanism 6 to prevent the one-way check mechanism 6 from being excessively displaced toward the water outlet under water pressure.

In order to prevent the water in the suction pump from flowing back through the suction port, it is necessary to ensure a good sealing performance of the one-way check mechanism. When the water stored in the water suction pump is large, the water pressure of the one-way check mechanism is large. In order to avoid excessive depression of the valve piece of the one-way check mechanism, a positioning mechanism for supporting the valve piece is provided in the draft tube.

The positioning mechanism may be a positioning column disposed in the vertical outlet of the draft tube, one end is fixed in the draft tube, the other end is vertically upward, and is in contact with the lower end surface of the valve piece, and the valve piece is supported under the valve piece to avoid Excessive water pressure causes excessive sagging or excessive deformation of the valve plate to affect the sealing effect of the valve plate.

The positioning column is disposed in the water outlet of the draft tube, and the positioning column can be integrally formed with the draft tube, or can be formed as a separate component, and is detachably fixedly connected with the water outlet of the draft tube, such as plugging, screwing, etc. Wait. The positioning column can be cylindrical, or a flow tank for guiding the water flow can be arranged on the positioning column to increase the area of the water. Preferably, the outer peripheral surface of the positioning post forms a plurality of flow tanks extending in the axial direction, which reduces the volume of the intake duct and increases the amount of water. Embodiment 5

As shown in FIG. 11-12, the pump body cover 2 of the embodiment further includes a water inlet 10, and the water inlet end of the water inlet 10 and/or the water outlet of the water inlet is provided with a water flow buffer mechanism 17 for Slow down the intensity of the water.

The water suction pump is provided with a water inlet, a water suction port and a water outlet, and the water inlet of the water suction pump installed on the washing machine is connected with the water inlet valve of the washing machine. When the water inlet valve of the washing machine is opened, whether the water pump is activated or not, the water flow can enter the water suction pump through the water inlet. When the water flow is rapid, the turbulent flow is likely to occur, which may cause an impact on the valve piece of the one-way check mechanism, resulting in the valve piece. The deformation causes a gap at the seal, thereby causing a poor seal and a situation in which the water suction port leaks back.

The water flow buffering mechanism may be a buffer net. In this embodiment, one or more buffer nets are installed in the water inlet, the water inlet end of the water inlet or the water outlet end of the water inlet to reduce the intensity of the water flow and avoid impact and deformation on the valve piece. To ensure the sealing effect.

Option 1: Install a buffer net at the inlet end of the water inlet to buffer the water flow intensity entering the water inlet.

Option 2: Install a buffer net or a grid at the outlet end of the water inlet, that is, at the water intake opening on the inside of the pump cover, to buffer the intensity of the incoming water flow.

Solution 3: a first buffer net is arranged in the water inlet end of the water inlet, and a second buffer net is arranged at the water outlet end of the water inlet of the pump body cover, and the double water flow buffer structure is adopted to reduce the vortex of the water flow and reduce Or avoid impact and deformation on the valve plate to ensure the sealing effect.

Embodiment 6

The embodiment provides a washing machine, the washing machine has the water suction pump, the suction chamber cover of the water suction pump and the pump body cover form a water absorption chamber, and the water absorption chamber is provided with a flow guiding mechanism 7 and a one-way check mechanism 6 for guiding the flow. The mechanism 7 is connected to the water suction port 8 The one-way check mechanism 6 is sealingly engaged with the flow guiding mechanism 7 by its own gravity, so that the water flow is unidirectionally entered into the water absorbing chamber 13 by the water suction port 8.

The water suction port, the flow guiding mechanism and the water absorption chamber of the water suction pump form an inlet passage, and an inlet of the impeller chamber for accommodating the impeller in the suction chamber cover forms an inlet communicating with the water inlet passage, the impeller chamber An outlet communicating with the drain port is formed on the side wall.

work process:

When it is necessary to use water suction pump to absorb water, before use, it is necessary to introduce a certain amount of water into the water suction pump, and the water intake quantity needs to be able to flood the impeller, so that when the water suction pump is energized to start working, the water suction pump can ensure the external water source. Inhale into the inside of the suction pump and pump the pump to the specified position. In addition, the water inlet of the suction pump needs to be connected to the external water source through an external water pipe. Specifically, one end of the water pipe is inserted into the water suction port and sealed to prevent air leakage, and the other end of the water pipe is immersed in the external water source.

When the suction pump starts to work, due to the action of the one-way check mechanism, the water introduced in advance in the suction pump can only flow into the inside of the suction pump without flowing out from the suction port. When the motor is energized and starts to rotate, the impeller rotates. Because the impeller is immersed in water, the water will flow through the outlet of the impeller chamber when rotating. After the water flows out, a low pressure zone is formed in the impeller chamber, and under the action of the pressure difference, the water will be absorbed. The air in the chamber is sucked into the impeller chamber. At this time, the impeller pumpes a mixture of water and vapor. Since the gas in the suction chamber is continuously sucked into the impeller chamber and pumped out, the external water source is along the external water tube under the action of external atmospheric pressure. And the suction port of the water suction pump and the draft tube advance, under the action of water pressure, the valve piece of the one-way check mechanism is opened upward, the water flows into the water suction pump, and when the gas inside the water absorption chamber is completely discharged, the water flow will external water pipe and absorb water. When the chamber is completely filled, the water flow begins to continuously enter the water suction pump; when the water outlet of the water suction pump is filled, the water flow flows out from the water outlet, thereby completing the water absorption process.

When the water suction pump is not working, when there is more water in the water suction pump, the one-way check mechanism seals the water outlet of the draft tube by its own gravity and one-way water pressure, and the water in the water suction pump does not leak back through the water suction port. To avoid accidental water leakage.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any technology that is familiar with the present patent. Those skilled in the art can make some modifications or modifications to equivalent embodiments by using the technical content of the above-mentioned hints without departing from the technical scope of the present invention, but the technology according to the present invention does not deviate from the technical solution of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments are still within the scope of the present invention.

Claims

A water suction pump comprises an impeller, a suction chamber cover and a pump body cover, one side of the suction chamber cover is provided with an impeller chamber for accommodating the impeller, and the other side is matched with the pump body cover to form a water absorption chamber, the impeller chamber and the water absorption The chamber is connected, and the pump body cover is provided with a water suction port and a water outlet port, wherein the water absorption chamber is provided with a flow guiding mechanism and a one-way non-return mechanism, and the flow guiding mechanism is connected with the water suction port, and the one-way non-return mechanism By means of its own gravity and the guiding mechanism, the water flow is unidirectionally entered into the suction chamber by the suction port.
A water suction pump according to claim 1, wherein the flow guiding mechanism comprises a draft tube, one end of which is connected to the water suction port, and the other end is a water outlet; the water outlet is upward The one-way non-return mechanism is disposed on the water outlet and is in sealing contact with the water outlet by its own gravity.
A water suction pump according to claim 2, wherein said water outlet is vertically upward, and said one-way check mechanism is horizontally disposed on the water outlet and in sealing contact with the water outlet.
A water suction pump according to claim 2 or 3, wherein the upper portion of the suction chamber cover has a projection, and the projection and the pump cover enclose a receiving chamber, the diversion The tube and the one-way check mechanism are disposed in the accommodating chamber and spaced apart from the upper wall of the accommodating chamber; the one-way check mechanism is opened toward the interval, and the water flows through the draft tube to enter the absorbing chamber unidirectionally.
A water suction pump according to any one of claims 2 to 4, wherein the one-way check mechanism includes a valve piece and a tail portion, and the valve piece is in sealing contact with the water outlet of the draft tube, The tail is connected to the draft tube.
A water absorbing pump according to claim 5, wherein an outer circumference of the water outlet of the draft tube is provided with an annular positioning table, and the valve piece is embedded in the annular positioning table and sealed on the water outlet.
A water absorbing pump according to claim 5, wherein the outer side wall of the draft tube is provided with a connecting portion, and the one-way check mechanism is fixedly connected or rotated through the connecting portion of the tail portion and the draft tube connection.
A water suction pump according to claim 7, wherein the connecting portion is provided with a groove, one side of the groove is provided with a notch, and the tail of the one-way check mechanism is matched with the groove and the notch and embedded In the groove, the one-way check mechanism and the guide tube are fixed;

Alternatively, the tail of the one-way check mechanism is hingedly connected to the connecting portion of the draft tube.
The water suction pump according to any one of claims 1 to 8, wherein the pump body cover is further provided with a water inlet, and the water inlet end of the water inlet and/or the water outlet end of the water inlet is provided. There is a water buffer mechanism to slow the flow of water.
A washing machine, characterized in that the washing machine has the suction pump according to any one of claims 1-9.