CN214838517U - Drain valve and water treatment equipment - Google Patents

Abstract

The application relates to the technical field of water treatment, discloses a drain valve, includes: a valve seat comprising a cylindrical interior cavity; a water inlet is formed in one end of the inner cavity, and a positioning groove is formed in the side cavity wall of the inner cavity; the valve core is movably inserted in the inner cavity and comprises a sealing part and a drainage part; the sealing part is arranged at one end of the valve core inserted into the inner cavity; the drainage part is provided with a drainage channel, one end of the drainage channel is communicated with the inner cavity, and the other end of the drainage channel is communicated with the external environment; the positioning bulge is arranged on the surface of the drainage part, and when the positioning bulge moves to the positioning groove, the sealing part blocks the inner cavity. During rivers got into the inner chamber of disk seat from the water inlet, when pushing the case to the direction that is close to the water inlet, and the protruding positioning groove who removes to the inner chamber in location on drainage portion surface, sealing portion shutoff inner chamber and case can't continue to remove, and rivers can't flow external environment, realize the function of shutoff rivers. The application also discloses a water treatment device.

Description

Drain valve and water treatment equipment

Technical Field

The application relates to the technical field of water treatment, for example, relate to a drain valve, a water treatment facilities.

Background

The drain valve plays an indispensable role in various water storage and drainage devices, and various drain valves with complex functional structures are widely applied to the technical fields of industry, machinery and the like. But due to the consideration of cost and application environment, the water discharge valve which has a simple structure and is convenient to install and replace also has huge market demand.

The prior art discloses a drain valve, sets up the bolt in connecting the outside, sets up the spout in the disk seat outside, connects and inserts the disk seat and through the bolt slide in the spout and drive the joint and remove in the disk seat, play the effect of shutoff and discharge rivers.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: the bolt and the chute of the drain valve are both arranged outside the joint and the valve seat, so that the drain valve is bulky and cannot be applied to small drainage pipelines, and the bolt and the chute are complex in structure and high in manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a drain valve and water treatment equipment, which aim to solve the problem that the traditional drain valve is large in size and cannot be applied to a small drain pipeline.

In some embodiments, the drain valve comprises:

a valve seat comprising a cylindrical interior cavity; a water inlet is formed in one end of the inner cavity, and a positioning groove is formed in the side cavity wall of the inner cavity;

the valve core is movably inserted in the inner cavity and comprises a sealing part and a drainage part; the sealing part is arranged at one end of the valve core inserted into the inner cavity; the drainage part is provided with a drainage channel, one end of the drainage channel is communicated with the inner cavity, and the other end of the drainage channel is communicated with the external environment;

the positioning bulge is arranged on the surface of the drainage part, and when the positioning bulge moves to the positioning groove, the sealing part blocks the inner cavity.

Optionally, the positioning groove is configured to have a U-shaped, triangular or rectangular cross section, and the positioning groove is disposed around the cavity wall of the inner cavity.

Optionally, the positioning protrusion has a circular arc, triangle or rectangle cross section, and is disposed around the surface of the valve core corresponding to the positioning groove.

Optionally, the positioning protrusion is an elastic plastic or rubber member.

Optionally, the positioning groove and the positioning protrusion are connected in an interference fit manner.

Optionally, a stopping portion is further disposed on a side cavity wall of the inner cavity, and the stopping portion is disposed on one side of the positioning groove away from the water inlet and used for stopping the positioning protrusion from moving in a direction away from the water inlet.

Optionally, the drain part includes:

and the pushing and pulling ring is arranged outside the inner cavity and connected with the drainage part.

Optionally, the valve core further includes:

one or more first sealing rings are sleeved on the sealing part; and/or the presence of a gas in the gas,

and one or more second sealing rings are sleeved on the drainage part.

Optionally, the valve seat further comprises:

the mounting thread is arranged on the surface of the valve seat;

the mounting disc is sleeved on the valve seat and is positioned on one side, close to the water inlet, of the mounting thread or on one side, far away from the water inlet, of the mounting thread.

In some embodiments, the water treatment apparatus comprises the above-described drain valve.

The drain valve and the water treatment device provided by the embodiment of the disclosure can realize the following technical effects:

when the valve core is pushed towards the direction close to the water inlet and the positioning bulge on the surface of the drainage part moves to the positioning groove of the inner cavity, the sealing part blocks the inner cavity, the valve core cannot move continuously, water cannot flow out of the external environment, and the function of blocking the water flow is realized; when the valve core is pulled in the direction far away from the water inlet, and after the positioning protrusion is separated from the positioning groove and the sealing part does not block the inner cavity, water flows out of the external environment through the drainage channel, so that the drainage function is realized. The drain valve provided by the embodiment of the disclosure has the advantages of small volume and simple structure, and is suitable for small drainage pipelines.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is an external view of an overall structure of a drain valve provided in an embodiment of the present disclosure;

fig. 2 is a sectional view of a water discharge state of the water discharge valve provided in the embodiment of the present disclosure;

fig. 3 is a partially enlarged view of a drain state of the drain valve according to the embodiment of the present disclosure;

fig. 4 is a sectional view of a blocking state of the drain valve provided by the embodiment of the present disclosure;

fig. 5 is a partially enlarged view of a blocking state of the drain valve according to the embodiment of the present disclosure.

Reference numerals:

1: a valve seat; 111: a first lumen; 112: a second lumen; 12: a water inlet; 13: a positioning groove; 14: a stop projection; 15: mounting a disc; 2: a valve core; 21: a sealing part; 22: a water discharge section; 221: positioning the projection; 222: a drainage channel; 223: a push-pull disc; 224: a rib; 225: connecting columns; 31: first seal ring 32: and a second seal ring.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

As shown in fig. 1 to 5, an embodiment of the present disclosure provides a drain valve including a valve seat 1, a valve element 2, and a positioning protrusion 221. The valve seat 1 comprises a cylindrical inner cavity; one end of the inner cavity is provided with a water inlet 12, and the side cavity wall of the inner cavity is provided with a positioning groove 13; the valve core 2 is movably inserted in the inner cavity and comprises a sealing part 21 and a drainage part 22; the sealing part 21 is arranged at one end of the valve core 2 inserted into the inner cavity; the drainage part 22 is provided with a drainage channel 222, one end of the drainage channel 222 is communicated with the inner cavity, and the other end is communicated with the external environment; the positioning projection 221 is provided on the surface of the drain portion 22, and the sealing portion 21 blocks the inner cavity when moving to the positioning groove 13.

When water flow enters the inner cavity of the valve seat 1 from the water inlet 12, the valve core 2 is pushed towards the direction close to the water inlet 12, and the positioning protrusion 221 on the surface of the drainage part 22 moves to the positioning groove 13 of the inner cavity, the sealing part 21 blocks the inner cavity, the valve core 2 cannot move continuously, the water flow cannot flow out of the external environment, and the function of blocking the water flow is realized; when the valve core 2 is pulled in a direction away from the water inlet 12, and after the positioning protrusion 221 is separated from the positioning groove 13 and the sealing part 21 no longer blocks the inner cavity, water flows out to the external environment through the drainage channel 222, so that a drainage function is realized. The drain valve provided by the embodiment of the disclosure has the advantages of small volume and simple structure, and is suitable for small drainage pipelines.

Optionally, the inner cavities include a first inner cavity 111 and a second inner cavity 112, and the bottom area of the second inner cavity 112 is larger than that of the first inner cavity 111; the head end of the first inner cavity 111 is communicated with the water inlet 12, and the tail end of the first inner cavity 111 is communicated with the second inner cavity 112; the sealing portion 21 is a cylinder, and the bottom area of the sealing portion 21 is equal to the bottom area of the first cavity 111, or is larger than the bottom area of the first cavity 111 and smaller than the bottom area of the second cavity 112. Thus, when the bottom area of the sealing portion 21 is equal to the bottom area of the first inner cavity 111, and the valve element 2 is moved and the positioning protrusion 221 on the surface of the drain portion 22 is moved to the positioning groove 13 of the inner cavity, the sealing portion 21 extends into the first inner cavity 111 and blocks the first inner cavity 111, and the water flow cannot continue to flow out of the external environment from the water flow passage of the drain portion 22. When the bottom area of the sealing portion 21 is larger than the bottom area of the first inner cavity 111 and smaller than the bottom area of the second inner cavity 112, and the valve element 2 is moved and the positioning protrusion 221 on the surface of the water discharging portion 22 is moved to the positioning groove 13 of the inner cavity, the sealing portion 21 is located in the second inner cavity 112 and blocks the first inner cavity 111, and water cannot flow out of the water flow passage external environment of the water discharging portion 22.

Referring to fig. 2 and 3, a drain process of the drain valve according to the embodiment of the present disclosure is as follows: the valve core 2 is moved towards the direction far away from the water outlet by pulling the push-pull disc 223, after the positioning protrusion 221 is separated from the positioning groove 13, the valve core 2 is continuously pulled until the sealing part 21 is separated from the first inner cavity 111 or the sealing part 21 is separated from the first inner cavity 111 under the water pressure action of the water inlet 12, at this moment, the sealing part 21 does not block the inner cavity any more, and water flows out to the external environment through the water drainage channel 222, so that the water drainage function is realized.

With reference to fig. 4 and 5, a process of blocking water flow of the drain valve provided by the embodiment of the present disclosure is as follows: the valve core 2 is moved towards the direction close to the water outlet by pushing the push-pull disc 223, the sealing part 21 gradually enters the first inner cavity 111 and blocks the first inner cavity 111, the valve core 2 is continuously pushed until the positioning protrusion 221 enters the positioning groove 13, and at the moment, the valve core 2 is fixed to be clamped by the positioning groove 13, so that the function of blocking water flow is realized.

Optionally, the drain 22 is cylindrical, with one end extending into the cavity and being provided with an opening and a plurality of connecting rods, and the other end extending out of the cavity. The drain part 22 is connected to the sealing part 21 through a connecting rod, and the water flow passage is communicated with the inner cavity through an opening. Since the drain part 22 is connected to the sealing part 21 by the connecting rod, the sealing part 21 is moved in synchronization when the drain part 22 is moved in a direction away from the drain port by pulling the portion of the drain part 22 extending out of the cavity. After the positioning protrusion 221 is separated from the positioning groove 13, the part of the drainage portion 22 extending out of the inner cavity is continuously pulled until the sealing portion 21 is separated from the first inner cavity 111 or the sealing portion 21 is separated from the first inner cavity 111 under the action of the water pressure of the water inlet 12, at this time, the sealing portion 21 no longer blocks the inner cavity, and water flows out to the external environment through the drainage channel 222, so that the drainage function is realized. When the part of the drainage part 22 extending out of the inner cavity is pushed to enable the drainage part 22 to move towards the direction close to the drainage port, the sealing part 21 moves synchronously, the sealing part 21 gradually enters the first inner cavity 111 and blocks the first inner cavity 111, the valve core 2 is continuously pushed until the positioning bulge 221 enters the positioning groove 13, and at the moment, the valve core 2 is determined to be clamped as a groove, so that the function of blocking water flow is realized.

Optionally, the sealing portion 21 may further include a guiding pillar, the guiding pillar is disposed at an end of the sealing portion 21 close to the water inlet 12, and the guiding pillar is a cylinder and has a bottom area not larger than that of the first inner cavity 111. Therefore, when the valve core 2 is pushed and the valve core 2 moves towards the direction close to the water outlet, the guide column firstly enters the first inner cavity 111, then the sealing part 21 enters the first inner cavity 111 and blocks the first inner cavity 111, the valve core 2 is continuously pushed until the positioning protrusion 221 enters the positioning groove 13, and at the moment, the valve core 2 is determined to be clamped by the positioning groove 13, so that the function of blocking water flow is realized. Thus, the positioning of the valve element can be assisted by the provision of the guide post, and the seal portion 21 can be guided into the first inner cavity 111.

Alternatively, the positioning groove 13 is configured to have a U-shaped, triangular or rectangular cross section, and the positioning groove 13 is disposed around the wall of the second inner cavity 112. Thus, because the positioning groove 13 is arranged around the cavity wall of the second inner cavity 112, even if the valve core 2 rotates circumferentially in the moving process, the positioning protrusion 221 on the surface of the drainage part 22 can still be clamped with the positioning groove 13, and at this time, the sealing part 21 of the valve core 2 blocks the inner cavity, so that water cannot flow out of the external environment.

Alternatively, the positioning protrusion 221 is configured to have a circular arc, triangle, or rectangle cross-section, and is disposed around the surface of the drain part 22 corresponding to the positioning groove 13. Thus, since the positioning projection 221 is provided around the drain part 22, it is easier to position in cooperation with the positioning groove 13.

Alternatively, the positioning projection 221 is integrally formed with the drain portion 22. In this way, the structure is simpler and easier to manufacture.

Optionally, the positioning protrusion 221 is an elastic plastic or rubber member. Because the working state of the drain valve needs to be switched frequently, when the valve core 2 is moved towards the direction close to the water inlet 12 and the positioning bulge 221 on the surface of the drain part 22 is moved to the positioning groove 13 of the inner cavity, the sealing part 21 blocks the inner cavity and the valve core 2 cannot move continuously, water flow cannot flow out of the external environment, and the function of blocking the water flow is realized; when the valve core 2 is moved in a direction away from the water inlet 12, the positioning protrusion 221 on the surface of the drainage portion 22 is separated from the positioning groove 13, and the sealing portion 21 no longer blocks the inner cavity, water flows out to the external environment through the drainage channel 222, and a drainage function is realized. Therefore, the elastic plastic or rubber material has good elastic deformation characteristics, the positioning protrusion 221 made of the above materials can be suitable for the application environment of frequent switching, and the service life is long.

Optionally, the positioning groove 13 and the positioning protrusion 221 are connected by interference fit. Like this, through pushing away case 2 and moving to the direction that is close to the outlet, sealing 21 gets into first inner chamber 111 gradually and blocks off first inner chamber 111, continues to push away case 2 until location arch 221 gets into positioning groove 13, and case 2 is fixed as positioning groove 13 and blocks this moment, improves case 2's stability through the mode of interference fit connection, and case 2 remains stable then sealing 21 can block off the inner chamber better, makes rivers can't continue to flow external environment from drainage channel 222.

Optionally, a stopping portion is further disposed on a side cavity wall of the second inner cavity 112, and the stopping portion is disposed on a side of the positioning groove 13 away from the water inlet 12, so as to stop the positioning protrusion 221 from moving in a direction away from the water inlet 12. Therefore, the valve core 2 is pulled to move in the direction away from the water outlet, after the positioning protrusion 221 is separated from the positioning groove 13, the valve core 2 is pulled continuously until the sealing portion 21 is separated from the first inner cavity 111 or the sealing portion 21 is separated from the first inner cavity 111 under the water pressure of the water inlet 12, at this time, the sealing portion 21 no longer blocks the inner cavity, and water flows out to the external environment through the drainage channel 222. If the water pressure of water inlet 12 department is great, water pressure strikes case 2 easily and makes case 2 deviate from disk seat 1, under the effect of backstop portion, case 2 is to keeping away from the in-process that 12 directions of water inlet removed, when the protruding 221 in location on drainage portion 22 surface takes place to interfere with the backstop portion, case 2 can't continue to remove to the direction of keeping away from water inlet 12, can block like this that case 2 deviates from the inner chamber. Meanwhile, the valve core 2 can be prevented from being directly pulled out of the valve seat 1 by excessive force.

Optionally, the stopping portion is a stopping protrusion 14, and the stopping protrusion 14 is disposed around the cavity wall of the second inner cavity 112. Therefore, the valve core 2 is pulled to move in the direction away from the water outlet, after the positioning protrusion 221 is separated from the positioning groove 13, the valve core 2 is pulled continuously until the sealing portion 21 is separated from the first inner cavity 111 or the sealing portion 21 is separated from the first inner cavity 111 under the water pressure of the water inlet 12, at this time, the sealing portion 21 no longer blocks the inner cavity, and water flows out to the external environment through the drainage channel 222. If the water pressure at the water inlet 12 is high, the water pressure easily impacts the valve core 2 to enable the valve core 2 to be separated from the valve seat 1, under the action of the stopping protrusion 14, in the process that the valve core 2 moves towards the direction away from the water inlet 12, when the positioning protrusion 221 on the surface of the drainage part 22 interferes with the stopping protrusion 14, the valve core 2 cannot move towards the direction away from the water inlet 12 continuously, and therefore the valve core 2 can be prevented from being separated from the inner cavity. Meanwhile, the valve core 2 can be prevented from being directly pulled out of the valve seat 1 by excessive force.

Optionally, the drain 22 includes a push-pull disc 223, the push-pull disc 223 being disposed outside the inner cavity and connected to the drain 22. Like this, drive case 2 and remove to the direction of keeping away from the outlet through pulling push-and-pull dish 223, after location arch 221 breaks away from positioning groove 13, continue to pull push-and-pull dish 223 until sealing 21 breaks away from first inner chamber 111 or sealing 21 breaks away from first inner chamber 111 under the water pressure effect of water inlet 12, sealing 21 no longer blocks up the inner chamber this moment, and rivers realize the drainage function through drainage channel 222 outflow to external environment. When the push-pull disc 223 is pushed to drive the valve core 2 to move towards the direction close to the water outlet, the sealing part 21 moves synchronously, the sealing part 21 gradually enters the first inner cavity 111 and blocks the first inner cavity 111, the push-pull disc 223 is continuously pushed until the positioning protrusion 221 enters the positioning groove 13, and the valve core 2 is determined to be clamped as a groove at the moment, so that the function of blocking water flow is realized. By providing the push-pull plate 223 in this way, the user can move the valve element 2 easily.

Optionally, the surface of the push-pull plate 223 is provided with a rib 224. Thus, the sliding can be prevented when the push-pull plate 223 is pushed or pulled.

Optionally, the valve core 2 further comprises a first sealing ring 31 and/or a second sealing ring 32. One or more first sealing rings 31 are sleeved on the sealing part 21; one or more second sealing rings 32 are sleeved on the drain part 22. Therefore, the first sealing ring 31 is sleeved on the sealing part 21, the valve core 2 is pushed to enable the valve core 2 to move towards the direction close to the water outlet, the sealing part 21 gradually enters the first inner cavity 111 and blocks the first inner cavity 111, the valve core 2 is continuously pushed until the positioning protrusion 221 enters the positioning groove 13, at the moment, the valve core 2 is positioned to be clamped by the positioning groove 13, water flow is prevented from flowing into a water flow channel from the space between the sealing part 21 and the cavity wall of the first inner cavity 111 under the action of the first sealing ring 31, and the sealing performance of the sealing part 21 is improved; through locating drain portion 22 with second sealing washer 32 cover, pulling case 2 makes case 2 remove to the direction of keeping away from the outlet, after location arch 221 breaks away from positioning groove 13, continue to pull case 2 until sealing 21 breaks away from first inner chamber 111 or sealing 21 breaks away from first inner chamber 111 under the water pressure effect of water inlet 12, sealing 21 no longer blocks the inner chamber this moment, and under the effect of second sealing washer 32, prevent that rivers from flowing out to the external environment between the chamber wall of drain portion 22 and second inner chamber 112, increased drain portion 22's leakproofness.

Optionally, the first sealing ring 31 and the second sealing ring 32 are both made of natural rubber. It is suitable for drinking water, hot water and other fluid medium.

Optionally, the first sealing ring 31 and the second sealing ring 32 are both nitrile rubber members. It is suitable for fluid medium such as petroleum, vegetable oil and mineral oil.

Optionally, the sealing portion 21 includes a first sealing groove disposed around a surface of the sealing portion 21 to cover the first sealing ring 31. Thus, by arranging the first sealing groove for sleeving the first sealing ring 31 on the surface of the sealing part 21, in the process of pushing the valve core 2 to enable the valve core 2 to move towards the direction close to the water outlet, the sealing part 21 gradually enters the first inner cavity 111 and blocks the first inner cavity 111, the first sealing ring 31 moves synchronously with the sealing part 21 under the action of the first sealing groove, the valve core 2 is continuously pushed until the positioning protrusion 221 enters the positioning groove 13, at the moment, the valve core 2 is positioned to be clamped by the positioning groove 13, the first sealing groove can effectively prevent the first sealing ring 31 from sliding, the sealing ring sleeved on the sealing part 21 is prevented from being separated from the sealing part 21, and the sealing performance of the first sealing ring 31 is improved.

Optionally, the drain portion 22 includes a second sealing groove disposed around the surface of the sealing portion 21 for sleeving the second sealing ring 32. Like this, through set up the second seal groove that is used for the cover to establish second sealing washer 32 on drainage portion 22 surface, in the in-process that pulling case 2 made case 2 to the direction removal of keeping away from the outlet, after location arch 221 breaks away from positioning groove 13, continue to pull case 2 until sealing 21 breaks away from first inner chamber 111 or sealing 21 breaks away from first inner chamber 111 under the water pressure effect of water inlet 12, sealing 21 no longer blocks the inner chamber this moment, and under the effect of second seal groove, the second seal groove can prevent effectively that second sealing washer 32 from taking place to slide, the sealing washer of avoiding the cover to locate drainage portion 22 breaks away from drainage portion 22, the sealing performance of second sealing washer 32 has been improved.

Optionally, the valve seat 1 further comprises mounting threads and a mounting disk 15. The mounting thread is arranged on the surface of the valve seat 1; the mounting plate 15 is sleeved on the valve seat 1 and is located on one side of the mounting thread close to the water inlet 12 or one side far away from the water inlet 12. The head end intercommunication water source of drain pipe, the end-to-end connection of drain pipe in disk seat 1 and with water inlet 12 intercommunication, the end of drain pipe is equipped with the internal thread that corresponds with the mounting thread of disk seat 1, and the mounting thread through disk seat 1 surface and the terminal internal thread of drain pipe are each other the spiro union be used for installing disk seat 1 like this, and is simple effective. Meanwhile, the valve seat 1 can be conveniently rotated by holding the mounting plate 15, and the valve seat 1 can be quickly mounted through mounting threads.

The embodiment of the disclosure provides a water treatment device, which comprises the above drain valve.

Optionally, the water treatment apparatus comprises a filter screen, which is arranged at the water inlet 12. Through setting up the filter screen at water inlet 12, when pulling case 2 to the direction of keeping away from water inlet 12, after locating protrusion 221 breaks away from positioning groove 13 and sealing portion 21 no longer blocks up the inner chamber, rivers flow into the inner chamber from water inlet 12 to flow out to external environment through drainage channel 222, filter some impurity of aquatic under the effect of filter screen, avoid impurity to get into the inner chamber, prevent that impurity from depositing or leading to the rivers passageway of drainage 22 to block up in the inner chamber.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A drain valve, comprising:

a valve seat comprising a cylindrical interior cavity; a water inlet is formed in one end of the inner cavity, and a positioning groove is formed in the side cavity wall of the inner cavity;

the valve core is movably inserted in the inner cavity and comprises a sealing part and a drainage part; the sealing part is arranged at one end of the valve core inserted into the inner cavity; the drainage part is provided with a drainage channel, one end of the drainage channel is communicated with the inner cavity, and the other end of the drainage channel is communicated with the external environment;

the positioning bulge is arranged on the surface of the drainage part, and when the positioning bulge moves to the positioning groove, the sealing part blocks the inner cavity.

2. The drain valve of claim 1, wherein the detent recess is configured to be U-shaped, triangular, or rectangular in cross-section, the detent recess being disposed around a wall of the internal chamber.

3. The drain valve according to claim 2, wherein the positioning projection is configured to have a circular arc, a triangular or a rectangular cross section and is provided around the surface of the drain part corresponding to the positioning groove.

4. The drain valve according to claim 1, wherein the positioning projection is an elastic plastic member or a rubber member.

5. The drain valve according to claim 1, wherein the positioning groove and the positioning protrusion are connected by interference fit.

6. The drain valve according to claim 1, wherein the side chamber wall of the inner chamber is further provided with a stopping portion, and the stopping portion is disposed at a side of the positioning groove away from the water inlet to stop the positioning protrusion from moving in a direction away from the water inlet.

7. The drain valve of claim 1, wherein the drain portion comprises a push-pull disk disposed outside the interior chamber and connected to the drain portion.

8. The drain valve according to claim 1, wherein the valve cartridge further comprises:

one or more first sealing rings are sleeved on the sealing part; and/or the presence of a gas in the gas,

and one or more second sealing rings are sleeved on the drainage part.

9. The drain valve of claim 1, wherein the valve seat further comprises:

the mounting thread is arranged on the surface of the valve seat;

the mounting disc is sleeved on the valve seat and is positioned on one side, close to the water inlet, of the mounting thread or on one side, far away from the water inlet, of the mounting thread.

10. A water treatment apparatus comprising a drain valve according to any one of claims 1 to 9.

Images