CN111336311A

CN111336311A - Waste water valve and water purifier

Info

Publication number: CN111336311A
Application number: CN201811561233.3A
Authority: CN
Inventors: 桂鹏; 刘梦薇; 郑跃东; 谈菲; 李杨敏
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Priority date: 2018-12-19
Filing date: 2018-12-19
Publication date: 2020-06-26

Abstract

The invention discloses a waste water valve and a water purifier, wherein the waste water valve comprises a valve body, a valve core assembly and a filter screen, the valve body is provided with a water inlet flow channel and a water outlet flow channel, a waste water cavity and a flushing cavity are arranged in the valve body, the valve core assembly is movably arranged in the valve body so as to be switched between a first position and a second position, when the valve core assembly is positioned at the first position, the water inlet flow channel, the waste water cavity and the water outlet flow channel are communicated, and when the valve core assembly is positioned at the second position, the water inlet flow channel, the flushing cavity and the water outlet flow channel are communicated. When the valve core assembly is located at the first position, the filter screen is located in the wastewater cavity, so that impurities or foreign matters in water can be filtered and intercepted by the filter screen, and the blockage of a wastewater valve can be avoided; when the case subassembly was in the second position, the filter screen was located and washes the intracavity, and the hydroenergy that washes the intracavity can be washed the filter screen, consequently can avoid the filter screen scale deposit to block up.

Description

Waste water valve and water purifier

Technical Field

The invention relates to the field of water purifiers, in particular to a waste water valve and a water purifier.

Background

The waste water valve has two functions, namely flushing the reverse osmosis membrane and discharging waste water generated by the reverse osmosis membrane. The existing waste water valve has the waste water hole easily blocked by impurities or foreign matters in waste water, and after the waste water hole is blocked, waste water cannot be discharged, so that the waste water valve loses functions, and a reverse osmosis membrane of a water purifier is scrapped under the more serious condition.

In order to avoid the blockage of a waste water hole, the prior art with the application number of 201721168416.X and the name of a normally closed pilot-operated combined electromagnetic valve discloses a scheme of arranging a filter mesh at a water inlet, however, as the filter mesh is arranged at the water inlet, the filter mesh is easy to scale and block after the filter mesh is used for a certain time.

Disclosure of Invention

The invention mainly aims to provide a waste water valve, which aims to realize filtering and intercepting of foreign matters in waste water and avoid blockage of a filter screen by the foreign matters.

In order to achieve the above object, the present invention provides a waste valve, comprising: the valve body is provided with a water inlet flow passage and a water outlet flow passage, and a wastewater cavity and a flushing cavity are arranged in the valve body; the valve core assembly is movably arranged in the valve body so as to be switched between a first position and a second position, when the valve core assembly is located at the first position, the water inlet flow channel, the waste water cavity and the water outlet flow channel are communicated, and when the valve core assembly is located at the second position, the water inlet flow channel, the flushing cavity and the water outlet flow channel are communicated; and the filter screen is provided with an intercepting surface for intercepting foreign matters, when the valve core assembly is positioned at the first position, the intercepting surface is positioned in the wastewater cavity to intercept the foreign matters, and when the valve core assembly is positioned at the second position, the intercepting surface is positioned in the flushing cavity to flush the interception surface.

Preferably, the waste water cavity with it has the capillary to go out to communicate between the water flow channel, the filter screen includes the filter screen body, the filter screen body with the water inlet of capillary sets gradually in the rivers direction.

Preferably, a water inlet end is formed at one end of the capillary tube, the water inlet end is provided with the water inlet, and the filter screen body and the outer peripheral surface of the water inlet end are arranged at intervals; the side surface of the filter screen body deviating from the water inlet end forms the intercepting section.

Preferably, the interception surface is arranged in an arc-shaped curved surface which is convex outwards in the direction away from the capillary tube.

Preferably, a plurality of filtering holes are arranged on the filter screen body in a penetrating mode, and the cross section of each filtering hole is in a polygonal arrangement.

Preferably, the filter screen still includes certainly the last filter screen that the tip of filter screen body extended to one side, go up the filter screen and be located the waste water chamber with wash between the chamber.

Preferably, the valve body is provided with a mounting groove, and the filter screen is detachably mounted in the mounting groove.

Preferably, the valve body is provided with a mounting groove, and the filter screen is detachably mounted in the mounting groove; the side of filter screen body is equipped with the inserted block, still be equipped with the confession on the valve body the slot that the inserted block adaptation was pegged graft.

Preferably, go up the filter screen and keep away from one side of filter screen body is equipped with the reference column, still be equipped with the confession on the valve body the fixed constant head tank of reference column adaptation.

The present invention also provides a water purifier comprising a waste valve, the waste valve comprising:

the valve body is provided with a water inlet flow passage and a water outlet flow passage, and a wastewater cavity and a flushing cavity are arranged in the valve body; the valve core assembly is movably arranged in the valve body so as to be switched between a first position and a second position, when the valve core assembly is located at the first position, the water inlet flow channel, the waste water cavity and the water outlet flow channel are communicated, and when the valve core assembly is located at the second position, the water inlet flow channel, the flushing cavity and the water outlet flow channel are communicated; and the filter screen is provided with an intercepting surface for intercepting foreign matters, when the valve core assembly is positioned at the first position, the intercepting surface is positioned in the wastewater cavity to intercept the foreign matters, and when the valve core assembly is positioned at the second position, the intercepting surface is positioned in the flushing cavity to flush the interception surface.

The invention provides a waste water valve, when a valve core assembly is positioned at a first position, a water inlet flow passage, a waste water cavity and a water outlet flow passage are sequentially communicated, and a filter screen is positioned in the waste water cavity, so that the filter screen can filter and intercept impurities or foreign matters in water, and the blockage of the waste water valve can be avoided; when the case subassembly was in the second position, the runner that intakes, washed the chamber and go out the water runner and communicate in proper order, and the filter screen is located and washes the intracavity, and the hydroenergy that washes the intracavity can be enough washed the filter screen, consequently can avoid the filter screen scale deposit to block up.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic top view of an embodiment of a waste valve according to the present invention;

FIG. 2 is a schematic sectional view taken along line II-II in FIG. 1;

FIG. 3 is a schematic sectional view taken along the direction III-III in FIG. 1;

fig. 4 is a schematic structural diagram of the filter screen in fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Valve body	210	Iron core
200	Valve core assembly	220	Sealing rubber
				300	Filter screen	230	Water retaining disc
400	Capillary tube	310	Filter screen body
				110	Water inlet flow passage	320	Upper filter screen
120	Water outlet flow passage	311	Plug block
				130	Waste water cavity	321	Positioning column
140	Flushing cavity

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a waste water valve which can intercept impurities and foreign matters in waste water and prevent the foreign matters from blocking a filter screen.

In an embodiment of the present invention, as shown in fig. 1 to 3, the waste water valve includes a valve body 100, a valve core assembly 200 and a filter screen 300, wherein the valve body 100 has a water inlet channel 110 and a water outlet channel 120, a waste water chamber 130 and a flushing chamber 140 are provided in the valve body 100, the valve core assembly 200 is movably provided in the valve body 100 to switch between a first position and a second position, as shown in fig. 2, when the valve core assembly 200 is in the first position, the water inlet channel 110, the waste water chamber 130 and the water outlet channel 120 are communicated, as shown in fig. 3, when the valve core assembly 200 is in the second position, the water inlet channel 110, the flushing chamber 140 and the water outlet channel 120 are communicated; the filter screen 300 has an intercepting surface for intercepting foreign matters, the intercepting surface is located in the waste water chamber 130 to intercept foreign matters when the valve core assembly 200 is in the first position, and the blocking section is located in the flushing chamber 140 to flush the blocking section when the valve core assembly 200 is in the second position.

Specifically, the valve core assembly 200 includes an iron core 210, a sealing rubber 220 and a water retaining disc 230, the water retaining disc 230 is provided with a pressure boosting hole and a pressure relief hole, the pressure boosting hole is communicated with the water inlet channel 110, water enters the interior of the waste water valve from the pressure boosting hole, when the waste water valve is in a non-energized state, the iron core 210 enables the sealing rubber 220 and the pressure relief hole to be arranged in a close fit manner under the action of a spring (as shown in fig. 2, the valve core assembly 200 is in a first position), the pressure in the water inlet channel 110 and the pressure in the waste water valve are greater than the pressure in the water outlet channel 120, and thus, the water inlet channel 110, the waste water cavity 130 and the;

when the waste water valve is in the power-on state, the iron core 210 drives the sealing rubber 220 to move upwards (as shown in fig. 3, the valve core assembly 200 is in the second position), and the aperture of the pressure relief hole is larger than that of the pressure boosting hole, so the water outlet flow velocity is larger than the water inlet flow velocity, the waste water valve discharges water from the pressure relief hole, after the pressure relief is completed, the internal pressure of the waste water valve is lower than the water inlet pressure, the water retaining disc 230 is lifted upwards under the action of the water inlet pressure, and thus the water inlet flow channel 110, the flushing cavity 140 and the water outlet flow channel 120 are sequentially communicated.

When the valve core assembly 200 is in the first position, the water inlet channel 110, the waste water cavity 130 and the water outlet channel 120 are sequentially communicated, and the filter screen 300 is positioned in the waste water cavity 130, so that the filter screen 300 can filter and intercept impurities or foreign matters in water, and the waste water valve can be prevented from being blocked; in addition, when the valve core assembly 200 is located at the second position, the water inlet channel 110, the flushing cavity 140 and the water outlet channel 120 are sequentially communicated, the filter screen 300 is located in the flushing cavity 140, and water in the flushing cavity 140 can flush the filter screen 300, so that the filter screen 300 can be prevented from being blocked due to scaling.

Preferably, the inlet channel 110 and the outlet channel 120 are disposed on the same side of the valve body 100, so that the waste water valve has a more compact structure.

Further, referring to fig. 2 and 4, the structure of the filter screen 300 will now be described. The waste water cavity 130 and the water outlet flow passage 120 are communicated with a capillary 400, the filter screen 300 comprises a filter screen body 310, and the filter screen body 310 and a water inlet of the capillary 400 are sequentially arranged in the water flow direction. Thus, after entering from the water inlet channel 110, water firstly passes through the filter screen 300 body, then enters the capillary tube 400, and finally is discharged through the water outlet channel 120, and since the filter screen body 310 is arranged at the upstream of the water inlet of the capillary tube 400, impurities and foreign matters can be filtered, so that the capillary tube 400 can be prevented from being blocked by the impurities and the foreign matters.

It should be noted that, in the present embodiment, the capillary 400 can be replaced, so that when the capillary 400 with different inner diameters is used, the inner hole of the capillary 400 has different sizes, so that the amount of wastewater can be adjusted by adjusting the size of the inner hole of the capillary 400, and thus, the stability of wastewater discharge is higher.

Further, referring to fig. 1, fig. 2 and fig. 4, the arrangement position of the filter screen body 310 is now described, wherein one end of the capillary 400 forms a water inlet end, an end surface of the water inlet end is provided with the water inlet, and the filter screen body 310 and the outer peripheral surface of the water inlet end are arranged at an interval; the side surface of the filter screen body 310 facing away from the water inlet end forms the intercepting section. Thus, the filter screen body 310 is located inside the valve body 100, and when the waste water chamber 130 is communicated, the filter screen body 310 can filter waste water entering the capillary tube 400, so as to prevent the capillary tube 400 from being blocked; when the flushing cavity 140 is conducted, water can flow into the flushing cavity 140 preferentially and quickly, and the process has an obvious flushing effect on foreign matters on the filter screen body 310, so that the filter screen body 310 is prevented from being blocked and prevented from scaling.

It should be noted that, the scheme of the present application is completely different from the scheme of disposing the filter screen 300 at the water inlet, and as for the scheme of disposing the filter screen 300 at the water inlet, the filter screen 300 only has the function of intercepting foreign matters; in the present application, the filter screen 300 is disposed in the valve body 100, and particularly, the filter screen 300 is disposed between the waste water chamber 130 and the flushing chamber 140, so that the filter screen 300 has not only an effect of intercepting foreign matters but also an effect of being flushed to prevent clogging due to scaling.

Further, in order to promote the impurities and the foreign materials to be separated from the filter screen 300, in an embodiment of the present application, the blocking section is disposed in an arc-shaped curved surface (not shown) which is convex outward in a direction away from the capillary 400. Thus, when the washing cavity 140 is communicated with the water inlet channel 110 and the water outlet channel 120, water is washed on the intercepting surface, the contact area of impurities and the convex arc-shaped curved surface is small, the adhesive force is small, and therefore the impurities and foreign matters can be promoted to be washed cleanly.

Further, referring to fig. 4, in order to improve the effect of preventing the filter screen 300 from being blocked by scales, in an embodiment of the present application, a plurality of filter holes are formed through the filter screen body 310, and the cross sections of the filter holes are arranged in a polygon shape. Thus, the cross section of the filtering hole has edges and corners, and impurities and foreign matters are difficult to fill the filtering hole, in other words, the edges and corners of the impurities and the foreign matters and the filtering hole have gaps, so that the impurities and the foreign matters are more easily washed away when the washing chamber 140 is communicated with the water inlet flow passage 110 and the water outlet flow passage 120, and thus the effect of preventing the filter screen 300 from being blocked by scales can be improved.

In a preferred embodiment, the cross section of the filtering hole is rectangular, and more preferably, the cross section of the filtering hole is square. However, the design of the present application is not limited thereto, and in other embodiments, the cross section of the filtering holes may also be pentagonal, hexagonal, octagonal, and the like.

Further, referring to fig. 2 to 4, in order to increase the filtering area of the filter screen 300, in an embodiment of the present invention, the filter screen 300 further includes an upper filter screen 320 extending from an end of the filter screen body 310 to one side, and the upper filter screen 320 is located between the waste water chamber 130 and the flushing chamber 140. In this way, when the valve core assembly 200 is located at the first position, the water inlet channel 110, the waste water cavity 130 and the water outlet channel 120 are communicated, and the filter screen 300 comprises the filter screen body 310 and the upper filter screen 320, so that the filter area is larger, and thus, foreign matters in water filtered by the filter screen 300 are filtered more thoroughly, and the blockage rate of the capillary tube 400 can be reduced; in addition, since the filtering area of the filtering net 300 is larger, the impurities and foreign matters intercepted on the filtering net 300 per unit area are less, and therefore, the filtering net 300 is easier to wash clean.

It should be noted that, because the upper filter screen 320 is located between the waste water chamber 130 and the flushing chamber 140, the upper filter screen has a certain blocking effect on the waste water chamber 130 and the flushing chamber 140, and therefore, when the valve core assembly 200 is located at the second position, the water inlet channel 110, the flushing chamber 140 and the water outlet channel 120 are communicated, and it is possible to promote most of the water to flow to the flushing chamber 140; therefore, the water quantity for washing the cross section of the filter screen 300 is large, and the cleaning effect of the filter screen 300 is good.

Further, referring to fig. 1 and 4, an installation structure of the filter screen 300 will now be described, in this embodiment, an installation groove (not shown) is provided on the valve body 100, and the filter screen 300 is detachably installed in the installation groove, so that the filter screen 300 can be conveniently installed and detached.

Specifically, in this embodiment, be equipped with the inserted block 311 on the side of filter screen body 310, still be equipped with the confession on the valve body 100 the slot (not shown) that the inserted block 311 adaptation was pegged graft, work as filter screen 300 with the mounting groove installation back that targets in place, inserted block 311 with the slot adaptation is pegged graft to can guarantee that filter screen 300 and valve body 100 are firmly connected.

As a preferable mode, one side of the upper filter screen 320, which is far away from the filter screen body 310, is provided with a positioning column 321, and the valve body 100 is further provided with a positioning groove for the positioning column 321 to be adapted and fixed, so that the filter screen 300 can be further stably fixed.

The present invention further provides a water purifier (not shown), which includes the waste water valve, and the specific structure of the waste water valve refers to the above embodiments, and since the water purifier provided by the present application adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are provided, and are not described herein again.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A waste valve, comprising:

the valve body is provided with a water inlet flow passage and a water outlet flow passage, and a wastewater cavity and a flushing cavity are arranged in the valve body;

the valve core assembly is movably arranged in the valve body so as to be switched between a first position and a second position, when the valve core assembly is located at the first position, the water inlet flow channel, the waste water cavity and the water outlet flow channel are communicated, and when the valve core assembly is located at the second position, the water inlet flow channel, the flushing cavity and the water outlet flow channel are communicated; and the number of the first and second groups,

the filter screen is provided with an intercepting surface for intercepting foreign matters, when the valve core assembly is located at the first position, the intercepting surface is located in the waste water cavity to intercept the foreign matters, and when the valve core assembly is located at the second position, the intercepting surface is located in the flushing cavity to flush the intercepting surface.

2. A waste valve as claimed in claim 1, wherein a capillary tube is connected between said waste chamber and said outlet channel, said strainer comprises a strainer body, and said strainer body and an inlet of said capillary tube are arranged in sequence in a water flow direction.

3. A waste water valve as claimed in claim 2, wherein one end of said capillary tube forms a water inlet end, said water inlet end being opened with said water inlet, said strainer body being spaced from an outer peripheral surface of said water inlet end; the side surface of the filter screen body deviating from the water inlet end forms the intercepting section.

4. A waste valve as claimed in claim 2, wherein said dam section is provided with an arcuate curved surface which is convex in a direction away from said capillary tube.

5. A waste valve as claimed in claim 2, wherein a plurality of filtering holes are formed through said screen body, said filtering holes having a polygonal cross-section.

6. A waste valve as claimed in claim 2, wherein said screen further comprises an upper screen extending to one side from an end of said screen body, said upper screen being located between said waste chamber and said flush chamber.

7. A waste valve as claimed in any of claims 1 to 6, wherein said valve body is provided with a mounting slot in which said filter screen is removably mounted.

8. A waste valve as claimed in claim 6, wherein said valve body is provided with a mounting slot, and said filter screen is removably mounted in said mounting slot;

the side of filter screen body is equipped with the inserted block, still be equipped with the confession on the valve body the slot that the inserted block adaptation was pegged graft.

9. A waste valve as claimed in claim 8, wherein a positioning column is disposed on a side of said upper screen remote from said screen body, and a positioning groove for said positioning column to be fitted and fixed is further disposed on said valve body.

10. A water purifier characterized in that it comprises a waste water valve according to any one of claims 1 to 9.