Flushing control valve group

Abstract

The invention discloses a flushing control valve group, and belongs to the technical field of sanitary products. The flushing valve comprises a shell and a valve assembly contained in the shell, the valve assembly comprises a flushing valve body integrally formed in an injection molding mode, an inlet and an outlet are formed in the two opposite end faces of the flushing valve body, and the flushing valve body comprises a first cavity close to the inlet and a second cavity close to the outlet; the first cavity and the second cavity are communicated with each other and are respectively provided with mounting ports facing the same direction; the separator is mounted on the mounting port of the first cavity and divides the first cavity into a first half cavity and a second half cavity which are independent from each other; the stop valve and the throttle valve are respectively mounted on the mounting port of the first cavity, the stop valve is communicated with the first half cavity, and the throttle valve is communicated with the second half cavity; and the movable membrane, the movable piece and the electromagnetic valve are respectively arranged on the second cavity. The device is convenient to assemble and maintain in the later period, and has small influence on water quality.

Description

Technical Field

[0001] This invention relates to the field of water consumption control technology for bathroom products, and in particular to a flush valve assembly for controlling water output. Background Technology

[0002] The toilet flushing control valve assembly is used to control the flushing volume of the toilet. It includes functional components such as a solenoid valve for automatically controlling the water flow in and out and the water volume, a one-way valve to prevent water backflow, a throttling valve to balance the water flow under different inlet pressures, and a shut-off valve to control the water flow in and out of the entire water circuit.

[0003] Currently, the various control valves that make up the flushing control valve assembly are usually connected separately and then installed in a housing, which is quite complicated to disassemble and assemble. During maintenance, the entire flushing control valve assembly usually needs to be replaced. At the same time, the valve bodies of the control valve assembly are usually made of copper alloy casting, which will cause water pollution and affect water consumption after long-term use. Summary of the Invention

[0004] Therefore, this invention proposes a flushing control valve assembly that is easy to maintain and has minimal impact on water quality.

[0005] To address the aforementioned technical problems, the present invention provides the following technical solution:

[0006] A flushing control valve assembly includes a housing and a valve assembly housed therein. The valve assembly includes: an integrally injection-molded flushing valve body, with an inlet and an outlet on opposite end faces; the flushing valve body includes a first cavity near the inlet and a second cavity near the outlet, the first cavity and the second cavity communicating with each other and each having an mounting port facing the same direction; a separator installed on the mounting port of the first cavity and dividing the first cavity into an independent first half-cavity and a second half-cavity; a shut-off valve and a throttle valve, respectively installed on the mounting port of the first cavity, the shut-off valve communicating with the first half-cavity and the throttle valve communicating with the second half-cavity; a moving diaphragm and a solenoid valve, respectively installed on the second cavity.

[0007] In some embodiments of the present invention, the first cavity and the second cavity are connected by a one-way valve.

[0008] In some embodiments of the present invention, the mounting port of the first cavity has an annular mounting wall, and the partition is provided with an annular mounting portion. The annular mounting portion is sealed to the annular mounting wall. The partition is also provided with an isolation protrusion, and the isolation protrusion is sealed to the inner wall of the first cavity through a sealing member.

[0009] In some embodiments of the present invention, the separator has a first annular portion and a second annular portion on the side surface away from the first cavity, a portion of the shut-off valve is disposed within the first annular portion, and the throttle valve is disposed within the second annular portion.

[0010] In some embodiments of the present invention, the shut-off valve is mounted on the first cavity via a first mounting base, the first mounting base being provided with a first limiting sleeve, and a portion of the shut-off valve being disposed within the first limiting sleeve.

[0011] In some embodiments of the present invention, the first mounting base is further provided with a second limiting sleeve, and a filter screen assembly is installed on the second limiting sleeve. The filter screen assembly includes a filter screen cover plate sealed and connected to the second limiting sleeve and a filter screen located between the filter screen cover plate and the throttle valve.

[0012] In some embodiments of the present invention, a water inlet connector and a water outlet connector are respectively connected to the two oppositely disposed shell walls of the outer shell. The water inlet connector and the water outlet connector each include: a first connector fixedly connected to the side wall of the outer shell and a second connector connected to the flushing valve body. The first connector and the second connector are slidably sealed together.

[0013] In some embodiments of the present invention, the sliding distance between the first connector and the second connector is greater than the length of the portion of the second connector connected to the flushing valve body.

[0014] In some embodiments of the present invention, the second connector is inserted into the inner wall of the first connector on the side near the first connector and sealed by a sealing ring located between the two.

[0015] In some embodiments of the present invention, a main valve port is provided on the second cavity, the moving diaphragm is mounted on the main valve port, the solenoid valve is mounted on the second cavity via a second mounting base, a control cavity is formed between the second mounting base and the moving diaphragm, a reset member is provided in the control cavity, and the reset member applies a force suitable for closing the main valve port to the moving diaphragm.

[0016] The technical solution of the present invention has the following technical effects compared with the prior art:

[0017] In the flushing control valve assembly provided by this invention, by setting an integrally injection-molded flushing valve body, each functional component can be installed on the same mounting port of the flushing valve body, which facilitates the installation and maintenance of each functional component; by setting a separator, the first cavity of the flushing valve body is divided into two independent cavities, and the water flow is guided from the first half cavity through the shut-off valve and the throttle valve into the second half cavity, which facilitates the isolated installation of the shut-off valve and the throttle valve, and realizes the multi-purpose use of the functional cavities of the flushing valve body; in addition, the integrally injection-molded flushing valve body is usually a non-metallic part, which will not have the risk of corrosion, ensuring the stability of the water quality and the water flow rate. Attached Figure Description

[0018] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which will help to understand the purpose and advantages of the present invention, wherein:

[0019] Figure 1 This is a schematic diagram of a specific embodiment of the flushing control valve assembly of the present invention;

[0020] Figure 2 A top view of a specific embodiment of the flushing control valve assembly of the present invention after removing the cover;

[0021] Figure 3 An exploded view of a specific embodiment of the flushing control valve assembly of the present invention;

[0022] Figure 4 This is a cross-sectional view of the flushing control valve assembly of the present invention when the water circuit is initially connected and the solenoid valve is closed, according to a specific embodiment of the present invention.

[0023] Figure 5 This is a cross-sectional view of the solenoid valve in the closed and held state in a specific embodiment of the flushing control valve assembly of the present invention.

[0024] Figure 6 This is a cross-sectional view of the solenoid valve in its initial open state in a specific embodiment of the flushing control valve assembly of the present invention.

[0025] Figure 7 This is a cross-sectional view of the solenoid valve in the open and held state in one specific embodiment of the flushing control valve assembly of the present invention. Detailed Implementation

[0026] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] like Figures 1-3 The image shows a specific embodiment of the flushing control valve assembly provided by the present invention. This flushing control valve assembly is applied to a toilet and is used for flushing control of the toilet.

[0031] The flushing control valve assembly includes a housing 100 and a valve assembly 200 housed therein. The valve assembly 200 includes an integrally injection-molded flushing valve body 201. The flushing valve body 201 has a water flow channel and inlet 201a and outlet 201b on opposite end faces. The flushing valve body 201 includes a first cavity 2011 near the inlet 201a and a second cavity 2012 near the outlet 201b. The first cavity 2011 and the second cavity 2012 are interconnected and each has a mounting port facing the same direction. For example... Figure 3The image shows that the mounting ports of both the first cavity 2011 and the second cavity 2012 face upwards. The flushing control valve assembly also includes a separator 202 installed on the mounting port of the first cavity 2011, dividing the first cavity 2011 into two independent half-cavities 2011-1 and 2011-2. A shut-off valve 203 and a throttle valve 204 are respectively installed on the mounting ports of the first cavity 2011. The shut-off valve 203 controls the flow of water throughout the valve assembly, facilitating future maintenance and replacement of the filter and other parts. During operation, the shut-off valve 203 remains normally open. The throttle valve 204 is used to stabilize the flow and reduce and control the impact of pressure difference on the water output of the pipe cross-section under high and low water pressure. The shut-off valve 203 is located on the upper side of the separator 202 and communicates with the first half-cavity 2011-1 through the through hole on the separator 202. The throttle valve 204 is located on the separator 202 and communicates with the second half-cavity 2011-2 through the through hole on the separator 202. It also includes a moving diaphragm plate 205 and a solenoid valve 206 installed on the second cavity 2012. The solenoid valve 206 and the moving diaphragm plate 205 are linked to control the water flow and the flushing volume.

[0032] In the aforementioned flushing control valve assembly, by setting an integrally injection-molded flushing valve body 201, each functional component, such as the shut-off valve 203, the throttle valve 204, the solenoid valve 206, and the moving diaphragm plate 205, is respectively installed on the flushing valve body 201 facing the same mounting port. This allows each functional component to be disassembled and assembled along one side of the housing, facilitating the installation and maintenance of each functional component. By setting a separator 202, the first cavity 2011 of the flushing valve body 201 is divided into two independent cavities. The water flow is guided from the first half-cavity 2011-1 through the shut-off valve 203 and the throttle valve 204 into the second half-cavity 2011-2, which facilitates the isolated installation of the shut-off valve 203 and the throttle valve 204. In addition, the integrally injection-molded flushing valve body 201 is usually made of non-metallic parts such as plastic, which will not have the risk of corrosion, ensuring stable water quality and flow rate.

[0033] Specifically, in one optional embodiment, the first cavity 2011 and the second cavity 2012 are connected by a one-way valve 207 to maintain the one-way flow of water and prevent the water from flowing back and damaging the pipeline.

[0034] Specifically, in one optional embodiment, the separator 202 is sealed to the first cavity 2011 to divide the first cavity 2011 into two independent half-cavities, namely the first half-cavity 2011-1 and the second half-cavity 2011-2. The first cavity 2011 has an annular mounting wall 2011a at its mounting opening, and the separator 202 has a corresponding annular mounting portion 202a. The annular mounting portion 202a is sealed to the annular mounting wall 2011a by a sealing ring. The lower side of the separator 202 also has an isolation protrusion 202b that matches the inner wall of the first cavity 2011, and the isolation protrusion 202b is sealed to the inner wall of the first cavity 2011 by a sealing ring.

[0035] More specifically, to prevent the partition 202 from moving relative to the first cavity 2011 under water pressure, the partition 202 is fixedly connected to the first cavity 2011 by fastening screws 213a. The first cavity 2011 has at least one integrally formed connecting post, and the partition 202 has a connecting hole. The partition 202 is connected to the connecting post by fastening screws 213a passing through the connecting hole.

[0036] Specifically, in one optional embodiment, the separator 202 has a first annular portion 202c and a second annular portion 202d on the surface away from the first cavity 2011. A portion of the shut-off valve 203 is disposed within the first annular portion 202c, and the throttle valve 204 is disposed within the second annular portion 202d. More specifically, the shut-off valve 203 and the annular protrusion, and the throttle valve 204 and the second annular portion 202d, are connected and fixed by a rotational insertion method.

[0037] Specifically, in one optional embodiment, the shut-off valve 203 is mounted on the first cavity 2011 via a first mounting base 208. The flushing valve body 201 has four threaded holes around the first cavity 2011, and the first mounting base 208 has four corresponding connecting holes. The first mounting base 208 and the flushing valve body 201 are connected by fastening screws 213b passing through the connecting holes and threaded holes. The first mounting base 208 is provided with a first limiting sleeve 208a and a second limiting sleeve 208b. The lower surface of 08a abuts against the upper surface of the first annular portion 202c of the separator 202. A portion of the shut-off valve 203 is disposed within the first limiting sleeve 208a. Specifically, the valve body of the shut-off valve 203 is located within the first mounting base 208 and the first annular portion 202c of the separator 202. The control part of the shut-off valve 203 is located on the upper side of the first mounting base 208. During normal operation, the shut-off valve 203 is in the normally open state. When maintenance is required, the water flow channel can be closed by rotating the control part of the shut-off valve 203.

[0038] Specifically, in one optional embodiment, the flushing control valve assembly further includes a filter screen assembly mounted on the second limiting sleeve 208b. The filter screen assembly includes a filter screen cover 209 sealed to the second limiting sleeve 208b and a filter screen 210 located between the filter screen cover 209 and the throttle valve 204. The filter screen cover 209 is threadedly connected to the first mounting base 208. Water flowing through the shut-off valve 203 is filtered by the filter screen 210 before entering the throttle valve 204. The filter screen 210 filters impurities in the water, preventing large particles or dirt from flowing into the water path, affecting the water flow, and polluting the water source. When cleaning the filter screen 210 or the throttle valve 204 is required, after closing the shut-off valve 203, simply loosen the fastening screws on the filter screen cover 209 and open the filter screen cover 209 to remove the filter screen 210 and the throttle valve 204 for easy maintenance.

[0039] Specifically, to facilitate the installation and maintenance of the flushing valve body 201, the aforementioned flushing control valve assembly further includes an inlet connector 300a and an outlet connector 300b respectively connected to the opposite side walls of the housing 100. The inlet connector 300a is connected to the inlet 201a of the flushing valve body 201, and the outlet connector 300b is connected to the outlet 201b of the flushing valve body 201. The inlet connector 300a and the outlet connector 300b each include a first connector 301 fixedly connected to the side wall of the housing 100 and a second connector 302 connected to the flushing valve body 201. More specifically, the first connector 301 is connected to the side wall of the housing 100 via a fastening assembly, and the second connector 302 is threadedly connected to the inlet 201a / outlet 201b of the flushing valve body 201. The first connector 301 and the second connector 302 are slidably sealed together to facilitate the disassembly and assembly of the flushing valve body 201. More specifically, the second connector 302 is inserted into the inner wall of the first connector 301 on the side near the first connector 301 and can slide axially. A sealing ring is provided between the first connector 301 and the second connector 302 to achieve a sealed connection.

[0040] Specifically, the sliding distance between the first connector 301 and the second connector 302 is greater than the length of the portion of the second connector 302 connected to the flushing valve body 201. Thus, when performing maintenance on the flushing valve body 201, after shutting off the water supply, the threaded connection between the second connector 302 and the flushing valve body 201 can be loosened, and the second connector 302 can be slid towards the first connector 301, axially isolating the second connector 302 from the flushing valve body 201, allowing for complete replacement of the flushing valve body 201. This is particularly convenient for installing and maintaining the flushing control valve assembly inside walls or cabinets.

[0041] Specifically, in one optional embodiment, the second cavity 2012 is provided with a main valve port 2012a, the moving diaphragm plate 205 is mounted on the main valve port 2012a, and the solenoid valve 206 is mounted on the second cavity 2012 via a second mounting base 211. A control cavity A is formed between the second mounting base 211 and the moving diaphragm plate 205. A reset member 212 is provided in the control cavity A, and the reset member 212 applies a force to the moving diaphragm plate 205 suitable for closing the main valve port 2012a. In the initial state, the moving diaphragm plate 205 is positioned to close the main valve port 2012a under the action of the reset member 212.

[0042] More specifically, the control chamber A is connected to the valve chamber of the solenoid valve 206. The second mounting base 211 is provided with a control part 2111, which has a first connecting hole 2111a. One end of the first connecting hole 2111a is connected to the valve chamber of the solenoid valve 206, and the other end is connected to the outlet chamber 2013 of the flushing valve body 201. When the valve core of the solenoid valve 206 is activated, the first connecting hole 2111a can be opened or closed. The moving diaphragm plate 205 is also provided with a second connecting hole 205a for connecting the control chamber A and the outlet chamber 2013 of the flushing valve body 201.

[0043] Specifically, the outer casing 100 is formed into a rectangular shell, which is formed by a box body with an opening on one side and a cover body that closes the box body. The wiring part 2061 of the solenoid valve 206 is installed on the cover body of the outer casing 100.

[0044] The working process of the above-mentioned flushing control valve assembly is as follows:

[0045] like Figure 4 As shown, after the waterway is initially connected, the water flow ( Figure 4 As indicated by the dashed arrow, when the water enters the second chamber 2012 after passing through the shut-off valve 203, filter screen 210, throttle valve 204, and check valve 207, the moving diaphragm plate 205 deforms due to water pressure, and its center is lifted upwards. Water briefly flows from the main valve port 2012a to the outlet port 2013 of the flushing valve body 201. At this time, the water flows through the second connecting hole 205a into the control chamber A to replenish water. Since the solenoid valve 206 is closed, the water quickly fills the control chamber A. Figure 5 As shown, the moving diaphragm 205 is pressed back to its initial position under the action of the liquid gravity in the control chamber A and the reset member 212, and the flushing valve body 201 is immediately kept closed after a brief drainage.

[0046] like Figure 6 As shown, when the solenoid valve 206 receives an electrical signal and opens, the water flow ( Figure 6 (As indicated by the dashed arrow) it passes through the first connecting hole 2111a to the outlet 2013 of the flushing valve body 201. Due to the decrease in water pressure inside the control chamber, the moving diaphragm plate 205 is pushed upward under the action of water pressure, as... Figure 7 As shown, water flow ( Figure 7 (As indicated by the dashed arrow) the water then enters the outlet 2013 of the flushing valve through the main valve port 2012a, forming a normal flow of water.

[0047] When the solenoid valve 206 receives a closing signal, the first connecting hole 2111a is closed, and the water flows back into the control chamber A through the second connecting hole 205a; the moving diaphragm plate 205 is pressed back to its initial position under the action of the liquid gravity in the control chamber A and the reset member 212, the water flow channel is closed, and the flushing control valve body stops water supply operation.

[0048] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A flushing control valve assembly, characterized in that, Includes a housing (100) and a valve assembly (200) housed therein, the valve assembly (200) comprising: A flushing valve body (201) is integrally injection molded. The flushing valve body (201) has an inlet (201a) and an outlet (201b) on its two oppositely arranged end faces. The flushing valve body (201) includes a first cavity (2011) near the inlet (201a) and a second cavity (2012) near the outlet (201b). The first cavity (2011) and the second cavity (2012) are interconnected and each has a mounting port facing the same direction. A separator (202) is installed on the mounting port of the first cavity (2011) and divides the first cavity (2011) into two independent half-cavities (2011-1) and a second half-cavity (2011-2). The shut-off valve (203) and the throttle valve (204) are respectively installed on the mounting port of the first cavity (2011). The shut-off valve (203) is connected to the first half cavity (2011-1), and the throttle valve (204) is connected to the second half cavity (2011-2). The moving diaphragm plate (205) and the solenoid valve (206) are respectively installed on the second cavity (2012).

2. The flushing control valve assembly according to claim 1, characterized in that, The first cavity (2011) and the second cavity (2012) are connected by a one-way valve (207).

3. A flushing control valve assembly according to claim 1, characterized in that, The first cavity (2011) has an annular mounting wall (2011a) at its mounting port, and the partition (202) is provided with an annular mounting part (202a) corresponding to it. The annular mounting part (202a) is sealed to the annular mounting wall (2011a). The partition (202) is also provided with an isolation protrusion (202b), and the isolation protrusion (202b) is sealed to the inner wall of the first cavity (2011) by a sealing element.

4. A flushing control valve assembly according to claim 3, characterized in that, The separator (202) has a first annular portion (202c) and a second annular portion (202d) on the side surface away from the first cavity (2011). A portion of the shut-off valve (203) is disposed in the first annular portion (202c), and the throttle valve (204) is disposed in the second annular portion (202d).

5. A flushing control valve assembly according to claim 4, characterized in that, The shut-off valve (203) is mounted on the first cavity (2011) via the first mounting base (208). The first mounting base (208) is provided with a first limiting sleeve (208a), and a portion of the shut-off valve (203) is disposed within the first limiting sleeve (208a).

6. A flushing control valve assembly according to claim 5, characterized in that, The first mounting base (208) is also provided with a second limiting sleeve (208b), and a filter screen assembly is installed on the second limiting sleeve (208b). The filter screen assembly includes a filter screen cover plate (209) sealed and connected to the second limiting sleeve (208b) and a filter screen (210) located between the filter screen cover plate (209) and the throttle valve (204).

7. A flushing control valve assembly according to claim 1, characterized in that, It also includes a water inlet connector (300a) and a water outlet connector (300b) respectively connected to the opposite side walls of the housing (100). The water inlet connector (300a) and the water outlet connector (300b) respectively include: a first connector (301) fixedly connected to the side wall of the housing (100) and a second connector (302) connected to the flushing valve body (201). The first connector (301) and the second connector (302) are slidably sealed together.

8. A flushing control valve assembly according to claim 7, characterized in that, The sliding distance between the first connector (301) and the second connector (302) is greater than the length of the portion of the second connector (302) connected to the flushing valve body (201).

9. A flushing control valve assembly according to claim 7 or 8, characterized in that, The second connector (302) is inserted into the inner wall of the first connector (301) on the side near the first connector (301) and sealed by a sealing ring located between the two.

10. A flushing control valve assembly according to claim 1, characterized in that, The second cavity (2012) is provided with a main valve port (2012a), the moving diaphragm plate (205) is installed on the main valve port (2012a), and the solenoid valve (206) is installed on the second cavity (2012) through the second mounting base (211). The second mounting base (211) and the moving diaphragm plate (205) form a control cavity (A). The control cavity (A) is provided with a reset member (212), and the reset member (212) applies a force to the moving diaphragm plate (205) suitable for closing the main valve port (2012a).

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