CN111719643A

CN111719643A - Drain valve for cleaning machine

Info

Publication number: CN111719643A
Application number: CN202010553337.0A
Authority: CN
Inventors: 马世起
Original assignee: Foshan Shengya Technology Co ltd
Current assignee: Foshan Shengya Technology Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2020-09-29

Abstract

The invention discloses a drain valve for a cleaning machine, which comprises a three-way valve body, a drain pipe and a piston pump, wherein the three-way valve body is provided with a water inlet pipe and a water outlet pipe; the three-way valve body is respectively provided with a first port, a second port and a third port, the first port is positioned at the top of the three-way valve body, and the second port and the third port are positioned on the same axis; the drain pipe is arranged at the second port; the piston pump is arranged at the third port, a drainage piston is arranged on the piston pump, and the drainage piston reciprocates towards the drainage pipe; when the drainage, the internal drainage piston of three-way valve is reciprocating motion towards the drain pipe under the effect of piston pump, makes waste water constantly pushed the drain pipe by force, makes debris such as vegetable leaf in the continuous impact drain pipe of rivers, avoids piling up of debris such as vegetable leaf, causes the jam of drain pipe, improves the smooth and easy degree of drain valve drainage.

Description

Drain valve for cleaning machine

Technical Field

The invention relates to the technical field of washing electric appliances, in particular to a drain valve for a cleaning machine.

Background

People often carry out the washing of fruit vegetables or bowl dish through manual among the daily life, for can thoroughly clear away fruit vegetables or bowl dish, consequently people use the cleaning machine to accomplish the washing of daily fruit vegetables or bowl dish, have sundries such as vegetable leaves in the sewage after the washing easily mixed of current cleaning machine, block up the drain pipe easily when the drainage, influence and use experience.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the drain valve for the cleaning machine, which can ensure the smooth drainage of the drain valve.

The drain valve for the cleaning machine comprises a three-way valve body, a drain pipe and a piston pump, wherein the three-way valve body is provided with a water inlet and a water outlet; the three-way valve body is provided with a first port, a second port and a third port respectively, the first port is positioned at the top of the three-way valve body, and the second port and the third port are positioned on the same axis; the drain pipe is arranged at the second port; the piston pump is arranged at the third port, a drainage piston is arranged on the piston pump, and the drainage piston reciprocates towards the drainage pipe.

The drain valve for the cleaning machine has at least the following advantages:

when the drainage, the internal drainage piston of three-way valve is reciprocating motion towards the drain pipe under the effect of piston pump, makes waste water constantly pushed the drain pipe by force, makes debris such as vegetable leaf in the continuous impact drain pipe of rivers, avoids piling up of debris such as vegetable leaf, causes the jam of drain pipe, improves the smooth and easy degree of drain valve drainage.

According to some embodiments of the invention, the drain piston is spherical, and an inner side wall of the three-way valve body located at the outer edge of the second port is spherical.

According to some embodiments of the invention, the first port is provided with a fixing portion, and the fixing portion is provided with a water inlet passage leading to the inner cavity of the three-way valve body.

According to some embodiments of the invention, a waterproof ring gasket is mounted on the fixing portion, a water inlet is formed in the waterproof ring gasket and is matched with the water inlet channel, the water inlet extends downwards to form a sealing ring block, and an annular sealing groove is formed in the outer edge of the water inlet channel and is used for accommodating the sealing ring block.

According to some embodiments of the invention, a sealing sleeve is mounted on the piston rod of the piston pump, and a spring is sleeved on the piston rod of the piston pump.

According to some embodiments of the invention, the drain pipe branches off an overflow pipe.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a schematic longitudinal sectional view of the drain valve body;

fig. 3 is a schematic view of an exploded state of the drain valve body;

FIG. 4 is a schematic cross-sectional view of the drain valve body;

FIG. 5 is a schematic view of a waterproof ring;

FIG. 6 is a schematic cross-sectional view of a three-way valve body;

FIG. 7 is a schematic side view of a drain piston.

Three-way valve body 100, first port 110, second port 120, third port 130; a water discharge pipe 200, an overflow pipe 210; piston pump 300, drain piston 310, gland 320, spring 330; a fixing portion 400, a water inlet passage 410, an annular seal groove 411; waterproof ring pad 500, water inlet 510, sealing washer piece 511.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

Referring to fig. 1 to 3, a drain valve for a washing machine, includes a three-way valve body 100, a drain pipe 200, a piston pump 300; the three-way valve body 100 is respectively provided with a first port 110, a second port 120 and a third port 130, the first port 110 is positioned at the top of the three-way valve body 100, and the second port 120 and the third port 130 are positioned on the same axis; a drain pipe 200 is arranged at the second port 120; the piston pump 300 is installed at the third port 130, the water discharging piston 310 is installed on the piston pump 300, the water discharging piston 310 reciprocates towards the water discharging pipe 200, when water is discharged, the water discharging piston 310 in the three-way valve body 100 reciprocates towards the water discharging pipe 200 under the action of the piston pump 300, so that waste water is continuously forced into the water discharging pipe 200, water flow continuously impacts sundries such as vegetable leaves in the water discharging pipe 200, accumulation of the sundries such as the vegetable leaves is avoided, blockage of the water discharging pipe 200 is avoided, and the smoothness of water discharging of the water discharging valve is improved.

Referring to fig. 6 and 7, the drainage piston 310 is a spherical surface, the inner side wall of the three-way valve body 100 located at the outer edge of the second port 120 is a spherical surface, the three-way valve body 100 avoids accumulation of the particulate waste residues through the inner side wall which is the spherical surface, when the drainage piston 310 reciprocates towards the drainage valve, the particulate waste residues can be discharged into the drainage pipe 200, and the drainage valve is prevented from being out of service due to the fact that the particulate waste residues are accumulated to weaken the thrust generated by the drainage piston 310.

The first port 110 is provided with a fixing part 400, when in operation, the three-way valve body 100 is fixedly arranged at the bottom of the water outlet of the water tank of the cleaning machine through the fixing part 400, the fixing part 400 is provided with a water inlet channel 410 leading to the inner cavity of the three-way valve body 100, and wastewater in the water tank of the cleaning machine sequentially passes through the water outlet and the water inlet channel 410 and enters the inner cavity of the three-way valve body 100.

Referring to fig. 3, 5 and 6, in order to avoid water leakage, the fixing portion 400 is provided with a waterproof ring pad 500, the waterproof ring pad 500 is provided with a water inlet 510, the water inlet 510 is matched with the water inlet channel 410, the water inlet 510 extends downwards to form a sealing ring block 511, the outer edge of the water inlet channel 410 is provided with an annular sealing groove 411, and the annular sealing groove 411 is used for being filled with the sealing ring block 511, so that waste water directly enters the water inlet channel 410 through the water inlet 510, and the waste water is prevented from leaking out.

Referring to fig. 4, a spring 330 is fitted over a piston rod of the piston pump 300, and the drain piston 310 is returned by the spring 330; in order to prevent the waste water from flowing out through the gap between the piston pump 300 and the drain valve body, a sealing sleeve 320 is installed on the piston rod of the piston pump 300.

To facilitate the connection with the overflow of the washer tank, an overflow pipe 210 is branched from the drain pipe 200.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A drain valve for a washing machine, comprising:

the three-way valve comprises a three-way valve body (100), wherein a first port (110), a second port (120) and a third port (130) are respectively arranged on the three-way valve body (100), the first port (110) is positioned at the top of the three-way valve body (100), and the second port (120) and the third port (130) are positioned on the same axis;

a drain pipe (200), the drain pipe (200) being provided at the second port (120);

the piston pump (300), the piston pump (300) is installed at the third port (130), a drainage piston (310) is installed on the piston pump (300), and the drainage piston (310) reciprocates towards the drainage pipe (200).

2. The drain valve for a washing machine according to claim 1, characterized in that the drain piston (310) is spherical, and the inner side wall of the three-way valve body (100) at the outer edge of the second port (120) is spherical.

3. The drain valve for the washing machine according to claim 1, characterized in that a fixing part (400) is arranged at the first port (110), and a water inlet channel (410) leading to the inner cavity of the three-way valve body (100) is arranged on the fixing part (400).

4. The drain valve for the cleaning machine according to claim 3, wherein the fixing portion (400) is provided with a waterproof ring pad (500), the waterproof ring pad (500) is provided with a water inlet (510), the water inlet (510) is matched with the water inlet channel (410) in position, the water inlet (510) extends downwards to form a sealing ring block (511), the outer edge of the water inlet channel (410) is provided with an annular sealing groove (411), and the annular sealing groove (411) is used for accommodating the sealing ring block (511).

5. The drain valve for washing machines according to claim 1, characterized in that the piston rod of the piston pump (300) is fitted with a gland (320), and the piston rod of the piston pump (300) is fitted with a spring (330).

6. A discharge valve for washing machines according to claim 1, characterized in that the discharge pipe (200) branches off from an overflow pipe (210).