CN114776841A - Fluid control valve - Google Patents

Abstract

The invention discloses a fluid control valve, which comprises a water inlet chamber, wherein the water inlet chamber is provided with at least one water inlet; the water outlet chamber is provided with at least one water outlet, and each water inlet or each water outlet is communicated with at least one water outlet or water inlet; and the cam valve mechanism controls the opening or closing of the passage between the water inlet chamber and the water outlet chamber. The cam valve mechanism can generate fixed-mode height difference reciprocating motion to control the closing of a flow channel in the valve body and further open or close a water outlet on the water outlet chamber, one cam can control a plurality of valve cores simultaneously, the control is flexible and changeable, and the size of the mechanism is greatly reduced. Meanwhile, the mechanism also has the function of adjusting the water flow according to the height difference of the valve core, or the size and the number of the channel ports are increased, and the mechanism is matched with the corresponding valve core. The water inlet and outlet can be arranged axially, radially, horizontally or at other angles with angular inclination and the like, and the mechanism is flexible and changeable.

Description

Fluid control valve

Technical Field

The invention relates to the technical field of automobile electric water valves, in particular to a fluid control valve.

Background

In the automotive industry, air conditioning assemblies create a comfortable environment within a vehicle by mixing and conditioning air cooled in an evaporator and air heated in a heater core and delivering appropriate air into the vehicle. The electric water valve is an important component of the air conditioning system assembly.

In the prior art, a water flow control structure of an electric water valve generally realizes the communication or cut-off of a pipeline by controlling the opening and closing of the water valve. Traditional control water valve, a port can only be controlled alone, when needing a plurality of ports in new energy automobile thermal management system especially, need correspond and set up the water valve in every export the place ahead, therefore there is the use quantity of water valve many, and the space occupies too big, is difficult to arrange and problem with high costs.

Disclosure of Invention

In view of the above-mentioned problems, the present invention provides a fluid control valve, which can control multi-port and multi-directional water flow by one mechanism, and has a small volume and low cost.

In order to solve the technical problem, the invention adopts the following technical scheme: a fluid control valve comprising an inlet chamber having at least one inlet opening therein; the water outlet chamber is provided with at least one water outlet, and the water inlet chamber is communicated with the water outlet chamber through at least one channel port, so that each water inlet or each water outlet is communicated with at least one water outlet or each water inlet; and the cam valve mechanism controls the opening or closing of the passage between the water inlet chamber and the water outlet chamber.

Further, the cam valve mechanism comprises a cam, a valve core and an elastic component; the valve core part is arranged in a channel opening between the water inlet chamber and the water outlet chamber; the cam is provided with a wave-shaped contact surface, the elastic component keeps applying force to the valve core, when the cam rotates for a certain angle according to a set value, the bottom end surface of the valve core is contacted with the contact surface of the cam, the valve core is driven to generate linear reciprocating motion, and the opening and closing of a channel opening in the water chamber are controlled.

Further, the water inlet chamber and the water outlet chamber can be mutually switched.

Furthermore, a water storage chamber is arranged between the water inlet chamber and the water outlet chamber; a water storage cavity is formed in the water storage chamber, the water inlet end of the water storage cavity is in butt joint with the water inlet chamber, and the water outlet end is provided with at least one passage port communicated with the water outlet chamber; the cam valve mechanism controls the opening or closing of the passage opening on the water storage chamber.

The invention further discloses a shaft shoulder is formed in the middle of the valve core, the part above the shaft shoulder penetrates through a passage opening of the water storage chamber and is positioned in the water storage chamber, a sealing ring is arranged at the joint of the passage opening, and a spring is arranged between the shaft shoulder and the water inlet chamber; the bottom end of the valve core penetrates through the bottom of the water inlet chamber, and a sealing ring is arranged at the joint; the blunt bottom of the valve core forms a contact angle with the contact surface of the cam, and the angle of the contact surface of the valve core and the cam is larger than 0 degree and smaller than 45 degrees.

Furthermore, the water flow in the water outlet chamber is adjusted through the number and the size of the passage openings in the water storage chamber and the height difference of the positions of the valve cores.

The invention further discloses that the water storage chamber is internally provided with an annular partition plate, the water storage chamber is divided into two independent cavities which are a first water storage chamber and a second water storage chamber respectively, and the first water storage chamber and the second water storage chamber are respectively provided with at least one passage port communicated with the water outlet chamber; the upper end of the water inlet chamber is provided with two water inlets, the first water storage chamber is communicated with the first water inlet, and the second water storage chamber is communicated with the second water inlet; 3 channel ports are respectively and annularly distributed on the first water storage chamber and the second water storage chamber, the 3 channel ports in the first water storage chamber are respectively connected with the first valve core, the third valve core and the fifth valve core, and the 3 channel ports in the second water storage chamber are respectively connected with the second valve core, the fourth valve core and the sixth valve core; the water outlet chamber is divided into 3 mutually independent sector areas with the same size, each area is provided with a water outlet, and the 3 areas are respectively communicated with a channel port where the first second valve core is positioned, a channel port where the third fourth valve core is positioned and a channel port where the fifth sixth valve core is positioned; 3 water outlets are radially distributed on the water outlet chamber and are respectively communicated with 3 areas in the water outlet chamber; the number of the water inlets multiplied by the water outlet amount is less than or equal to the number of the valve cores.

The cam is further provided with an inner annular contact surface and an outer annular contact surface, the inner annular contact surface is in contact with the bottom ends of the first valve core, the third valve core and the fifth valve core, and the outer annular contact surface is in contact with the bottom ends of the second valve core, the fourth valve core and the sixth valve core.

Furthermore, the elastic component is a spring, a support column is arranged on the upper end face inside the water inlet chamber, one end of the spring is connected and supported, and the other end of the spring is connected to a valve core shaft shoulder.

Furthermore, a water dividing chamber is arranged between the water inlet chamber and the water outlet chamber; the water inlet chamber is divided into a plurality of independent water inlet cavities, and each independent water inlet cavity is communicated with a water inlet; the water diversion chamber is divided into a plurality of independent water diversion cavities, and each water diversion cavity is provided with at least one passage opening communicated with the water inlet chamber; the water outlet chamber is divided into a plurality of independent water outlet cavities, each water outlet cavity is provided with at least one channel port communicated with the water distribution chamber, and each water outlet cavity is communicated with a water outlet; the cam valve mechanism controls the opening or closing of the passage port in the water distributing chamber.

The invention further provides a water inlet chamber which is divided into 2 same rectangular water inlet cavities by a partition plate, a water dividing chamber which is divided into 3 same rectangular water dividing cavities by a partition plate, six passage openings are formed in the water dividing chamber, and two passage openings are formed in each water dividing cavity and are respectively communicated with the two water inlet cavities; the water outlet chamber is divided into three independent water outlet cavities by a partition plate, the three independent water outlet cavities are two L-shaped cavities and a rectangular cavity from top to bottom, and each water outlet cavity is respectively provided with a passage port communicated with one water distribution cavity; the water inlets are provided with two water outlets which are horizontally arranged on the same side of the water outlet chamber, and the number of the water outlets is 3, and the water outlets are parallel to the water outlets and horizontally arranged on the same side of the water outlet chamber; the number of the water inlets multiplied by the water outlet amount is less than or equal to the number of the valve cores.

The invention further discloses that the elastic component is a spring, a shaft shoulder is formed in the middle of the valve core, the part above the shaft shoulder penetrates through a channel port of the water diversion chamber and is positioned in the water diversion chamber, a sealing ring is arranged at the joint of the channel port, and the spring is arranged between the shaft shoulder and the water outlet chamber; the bottom end of the valve core penetrates through the bottom of the water inlet chamber, and a sealing ring is arranged at the joint; the valve core bottom end round blunt and the cam contact surface form a contact angle, and the angle of the contact surface is larger than 0 degree and smaller than 45 degrees.

Furthermore, a plurality of adjusting grooves for adjusting water flow are axially distributed on the shaft shoulder of the valve core, and when the channel opening in the water diversion chamber is opened, water flows through the adjusting grooves.

Further, a spring mounting groove is formed in the top of the valve core, a spring fixing column is arranged at the bottom of the water outlet chamber, the spring is mounted on the spring fixing column, and the bottom of the spring fixing column is arranged in the spring mounting groove.

Furthermore, six channel openings on the water distribution chamber are respectively provided with a first valve core, a second valve core, a third valve core, a fourth valve core, a fifth valve core and a sixth valve core, the six channel openings are annularly distributed, and the six valve cores are driven by an annular contact surface of one cam.

The invention further provides that the water outlet chamber is of an annular structure, and the water outlet chamber is axially provided with at least one water outlet; the water inlet chamber is of an annular cylinder structure and is connected to the inside of the water outlet chamber, a hollow column is formed in the center of the water inlet chamber, a water storage area is formed between the hollow column and the outer wall of the water inlet chamber and is divided into a plurality of water storage cavities by partition plates, each water storage cavity is axially communicated with a water inlet, and at least one channel port is radially communicated with the external water outlet chamber; and the cam valve mechanism is arranged in the hollow column of the water inlet chamber, and an upper valve core of the cam valve mechanism penetrates through the water inlet chamber to control the opening or closing of a channel between the water inlet chamber and the water outlet chamber.

Furthermore, the center of the cam is provided with a driving shaft, and the radial outer profile of the cam is a wave-shaped contact surface; the inner end of the valve core keeps contact with the outer contour of the cam, and the outer end of the valve core forms a plug which penetrates through the water inlet chamber to block a channel opening on the outer wall of the water inlet chamber; the contact point at the inner end of the valve core is round and blunt, and contacts with the outer contour of the cam to form a contact angle, and the angle of the contact surface of the valve core and the cam is larger than 0 degree and smaller than 45 degrees.

The invention further discloses that the water inlet chamber is internally equally divided into four water storage chambers, each water storage chamber is radially and vertically arranged with four passage ports, and each water storage chamber is communicated with four water outlet chambers from top to bottom through four rows of vertically arranged passage ports; the four cams are vertically arranged from top to bottom and sequentially correspond to the first water outlet chamber, the second water outlet chamber, the third water outlet chamber and the fourth water outlet chamber, the four cams are driven by the same driving shaft, and each cam drives four valve cores of corresponding channel ports.

Furthermore, the flow of the water outlet is adjusted through the number and the size of the channel ports between the water inlet chamber and the water outlet chamber.

Furthermore, the top of the water inlet chamber is provided with a water tank cover, the water tank cover covers the water inlet chamber and the first water outlet chamber, and the water tank cover is provided with four water inlets which are respectively communicated with four water storage cavities in the water inlet chamber.

Furthermore, the elastic component is a spring, and a shaft shoulder for mounting the spring is formed in the middle of the valve core.

Furthermore, the water inlet chamber and the water outlet chamber are formed by separating a water chamber to form two water inlet chambers and three water outlet chambers which are mutually independent cavities; the upper part and the lower part of each of the three water outlet chambers are respectively provided with at least one passage port which is respectively communicated with the first water inlet chamber and the second water outlet chamber, and the three water outlet chambers are respectively provided with a first water outlet, a second water outlet and a third water outlet; the first water inlet chamber and the second water outlet chamber are respectively provided with a first water inlet and a second water inlet.

Furthermore, the valve core comprises a push rod, a core and a guide rod; the elastic component is a spring, and the spring is arranged on the guide rod; one end of the guide rod is fixed on the side wall of the first water inlet chamber, and the other end of the guide rod is assembled with a shaft hole above the core; one end of the push rod is arranged on the shaft hole below the core, and the other end of the push rod passes through the second water inlet chamber and contacts with the end face of the cam; plugs are formed at the upper end and the lower end of the core to plug the channel ports of the water outlet chamber, the push rod is driven by the aid of height difference of a wave contact surface of the cam, the core is driven by the push rod to apply spring acting force, the core simultaneously controls opening and closing of the upper channel port and the lower channel port of the water outlet chamber, and the channel port on one side is closed corresponding to the channel port on the other side when the channel port on the other side is opened.

Furthermore, 2 channel ports are respectively arranged above and below the three water outlet chambers and are respectively communicated with the first water inlet chamber and the second water inlet chamber; the valve core and the springs are six correspondingly and are arranged at an equal interval of 60 degrees on the circumference, and the six push rods are driven by one cam end face.

The two water inlet chambers and the three water outlet chambers are sealed by a water chamber cover.

The beneficial effect of adopting above-mentioned technical scheme is: the cam valve mechanism can generate fixed-mode height difference reciprocating motion to control the closing of a flow channel in the valve body and further open or close a water outlet on the water outlet chamber, one cam can control a plurality of valve cores simultaneously, the control is flexible and changeable, and the size of the mechanism is greatly reduced. Meanwhile, the mechanism also has the function of adjusting the water flow according to the height difference of the valve core, or the size and the number of the channel ports are increased, and the mechanism is matched with the corresponding valve core. The water inlet and outlet can be arranged axially, radially, horizontally or at other angles with angular inclination and the like, and the mechanism is flexible and changeable. Different water inlets are provided with corresponding independent flow channels in the water inlet chamber, water flow is controlled by the valve core to enter the water outlet chamber, the water outlet chamber is also provided with independent flow channels corresponding to different water outlets, water enters from a single water inlet, and water can be discharged from any water outlet by the control of the valve core.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is an assembly view of the first embodiment of the present invention;

FIG. 3 is a schematic view of a water storage chamber according to a first embodiment of the present invention;

FIG. 4 is a schematic illustration of the operation of the cam valve mechanism of the first embodiment of the present invention;

FIG. 5 is a sectional view showing the internal structure of the first embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 7 is an assembled view of a second embodiment of the present invention;

FIG. 8 is a schematic structural view of a water outlet chamber according to a second embodiment of the present invention;

FIG. 9 is a schematic structural view of a water diversion chamber of a second embodiment of the present invention;

fig. 10 is a schematic view showing a valve core structure of a cam valve mechanism according to a second embodiment of the present invention;

FIG. 11 is a sectional view showing the internal structure of a second embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a third embodiment of the present invention;

FIG. 13 is an assembled view of the third embodiment of the present invention;

FIG. 14 is a schematic structural view of an intake chamber of a third embodiment of the present invention;

FIG. 15 is a schematic structural view of a cam valve mechanism according to a third embodiment of the present invention;

FIG. 16 is a schematic structural view of a first outlet chamber according to a third embodiment of the present invention;

FIG. 17 is a schematic view of a second outlet chamber according to a third embodiment of the present invention;

FIG. 18 is a schematic view of a third outlet chamber according to a third embodiment of the present invention;

FIG. 19 is a schematic view of a fourth outlet chamber according to a third embodiment of the present invention;

FIG. 20 is a schematic structural view of a valve cartridge according to a third embodiment of the present invention;

FIG. 21 is an assembly view of the fourth embodiment of the present invention;

FIG. 22 is a sectional view showing the internal structure of a fourth embodiment of the present invention;

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention discloses a fluid control valve, which comprises a water inlet chamber, wherein the water inlet chamber is provided with at least one water inlet; the water outlet chamber is provided with at least one water outlet, and the water inlet chamber is communicated with the water outlet chamber through at least one channel port, so that each water inlet or each water outlet is communicated with at least one water outlet or each water inlet; and the cam valve mechanism controls the opening or closing of the passage between the water inlet chamber and the water outlet chamber. The cam valve mechanism comprises a cam, a valve core and an elastic component; the valve core part is arranged in a channel opening between the water inlet chamber and the water outlet chamber; the cam is provided with a wave-shaped contact surface, the elastic component keeps applying force to the valve core, when the cam rotates for a certain angle according to a set value, the bottom end surface of the valve core is contacted with the contact surface of the cam, the valve core is driven to generate linear reciprocating motion, and the opening and closing of a channel opening in the water chamber are controlled. It should be noted that the water inlet chamber and the water outlet chamber can be switched to use according to the requirements of working conditions. The intake chamber is used for going out water promptly, it is used for intaking to go out the hydroecium, and is nimble changeable, can deal with the multiple condition. Four examples are given below for illustration. It should be noted that the elastic component in the four embodiments given below is a spring, and the spring has the characteristics of good elasticity, strong adaptability, flexible use, etc., but the present invention is not limited to only using a spring, and other suitable elastic components such as a rubber elastic pad, an elastic membrane, etc. may be used instead according to actual situations.

A first embodiment of the present invention is given with reference to fig. 1 to 5: as shown in fig. 1 and 2, a fluid control valve comprises an inlet chamber 1, wherein the inlet chamber 1 is provided with at least one inlet; the water storage chamber is internally provided with a water storage cavity, the water inlet end of the water storage cavity is butted with the water inlet chamber 1, and the water outlet end is provided with at least one passage port communicated with the water outlet chamber 6; the water outlet chamber 6 is provided with at least one water outlet; and a cam valve mechanism 7, wherein the cam valve mechanism 7 controls the opening or closing of the passage opening on the water storage chamber. The cam valve mechanism 7 includes a cam 708, a spool, and a spring 707; a shaft shoulder is formed in the middle of the valve core, the part above the shaft shoulder penetrates through a passage opening of the water storage chamber and is positioned in the water storage chamber, a sealing ring is arranged at the joint of the passage opening, and a spring 707 is arranged between the shaft shoulder and the water inlet chamber; the cam 708 is provided with an annular contact surface which is in a wave shape, and the valve core is under the action of the spring 707, when the cam rotates for a certain angle according to a set value, the bottom end surface of the valve core is in contact with the contact surface of the cam, so that the valve core is driven to generate linear reciprocating motion, and the opening and closing of a passage opening in the water storage chamber are controlled.

As shown in fig. 4, the operation of the cam valve mechanism 7: firstly, the cam 708 is connected with a driving device (such as a motor and a motor), the valve core keeps closing the passage port or opening part of the passage port in an initial state, the cam 708 is driven by the device to start rotating, the valve core makes linear reciprocating motion due to the waveform contact surface, when the valve core descends, the part blocking the passage port is opened to be in a circulating state, and when the valve core ascends, the passage port returns to a closed state. The water flow in the water outlet chamber 6 is adjusted through the number and the size of the channel ports in the water storage chamber, and the water flow in the water outlet chamber is adjusted through the number and the size of the channel ports in the water storage chamber and the height difference of the position of the valve core. Theoretically, the larger the channel opening in the water storage chamber is, the more the channel opening is, the larger the water flow is, and the flow of the water storage chamber can be controlled in such a way. Meanwhile, the rotating speed of the cam 708 has certain influence on the flow rate and can be set according to actual working conditions. As shown in fig. 5, the contact surface angle between the bottom end of the valve core and the cam 708 is greater than 0 degree and less than 45 degrees. In this preferable angle range, friction can be reduced while ensuring sufficient driving force. As shown in fig. 2 and 3, the water inlet chamber 1, the water storage chamber and the water outlet chamber 6 are all cylindrical structures; the water storage chamber is internally provided with an annular partition plate, the water storage chamber is divided into two independent cavities, namely a first water storage chamber 2 and a second water storage chamber 3, and the first water storage chamber 2 and the second water storage chamber 3 are respectively provided with at least one passage port communicated with a water outlet chamber 6; there are two water inlets in intake chamber 1 upper end, first reservoir 2 and first water inlet 101 intercommunication, second reservoir 3 and second water inlet 103 intercommunication. As shown in fig. 2, 3 passage ports are annularly distributed on the first water storage chamber 2 and the second water storage chamber 3, the 3 passage ports in the first water storage chamber 2 are connected to the first valve core 701, the third valve core 703 and the fifth valve core 705, respectively, and the 3 passage ports in the second water storage chamber are connected to the second valve core 702, the fourth valve core 704 and the sixth valve core 706, respectively; 3 fan-shaped areas which are the same in size and are independent mutually are divided in the water outlet chamber 6, each area is provided with a water outlet, and the 3 areas are respectively communicated with a channel port where the first valve core and the second valve core are located, a channel port where the third valve core and the sixth valve core are located and a channel port where the fifth valve core and the sixth valve core are located; 3 water outlets are radially distributed on the water outlet chamber 6 and are respectively communicated with 3 areas in the water outlet chamber 6. The embodiment provides a radial water inlet and outlet mode, and water inlet and outlet in different directions can be realized according to different arrangement directions of the water outlets, such as horizontal, vertical and angle inclination modes. As shown in fig. 2, the cam 708 has inner and outer annular contact surfaces, the inner annular contact surface is in contact with the bottom ends of the first valve core 701, the third valve core 703 and the fifth valve core 705, and the outer annular contact surface is in contact with the bottom ends of the second valve core 702, the fourth valve core 704 and the sixth valve core 706. One cam can control a plurality of valve cores simultaneously, the control is flexible and changeable, and the volume of the mechanism is greatly saved.

In the embodiment, the water inlet chamber 1 and the water outlet chamber 6 are respectively provided with corresponding channel ports for communication, water enters the water storage chamber from the water inlet chamber 1, then passes through the channel ports controlled by the valve core and then is gathered in the water outlet chamber 6, and the water outlet chamber is internally provided with a corresponding amount of water outlet partitions for separating different water outlets. When the valve core moves to the height set by the rotating angle, the closing, opening and flow regulation control functions of the channel port can be correspondingly realized. The working mode is as follows: when the first water inlet 101 feeds water, the first valve core 701 is opened, and the third water outlet 601 discharges water; the third valve element 703 is opened singly, and the second water outlet 602 discharges water; the fifth valve core 705 is opened only, and the third water outlet 603 discharges water. When water enters the second water inlet 102, the second valve core 702 is opened, the first water outlet 601 discharges water, the fourth valve core 704 is opened, the second water outlet 602 discharges water, the sixth valve core 706 is opened, and the third water outlet 603 discharges water. The above is a scheme provided by the embodiment, and the number of the water inlets and the water outlets can be increased according to actual conditions, so that the control of the multi-channel waterway can be met only by ensuring that the number of the water inlets is multiplied by the number of the water outlets and is less than or equal to the number of the valve cores. In addition, as shown in fig. 2 on the basis of the above embodiment, a first sealing ring 4 and a second sealing ring 5 are respectively installed between the first water storage chamber 2, the second water storage chamber 3 and the water inlet chamber 6, a third sealing ring 8 is installed between the water outlet chamber 6 and the water storage chamber, and the third sealing ring 8 is matched with the partition board in the water outlet chamber 6 in shape, so that the sealing performance among the independent areas is ensured. As shown in FIG. 5, a resisting column 103 is arranged on the upper end surface inside the water inlet chamber 1, one end of a spring 707 is connected to the resisting column 103, and the other end is connected to the valve core shaft shoulder. Since the inlet chamber 1 is far from the valve core, the support 103 is arranged in the inlet chamber 1, so that the spring 707 is more convenient to install.

A second embodiment of the invention is given below with reference to fig. 6 to 11: a fluid control valve comprises a water inlet chamber 23, wherein the interior of the water inlet chamber 23 is divided into a plurality of independent water inlet cavities, and each independent water inlet cavity is communicated with a water inlet; the water diversion chamber 22 is divided into a plurality of independent water diversion cavities in the water diversion chamber 22, and each water diversion cavity is provided with at least one passage opening communicated with the water inlet chamber 23; the water outlet chamber 21 is divided into a plurality of independent water outlet cavities in the water outlet chamber 21, each water outlet cavity is provided with at least one channel port communicated with the water distribution chamber 22, and each water outlet cavity is communicated with a water outlet; and a cam valve mechanism 25, wherein the cam valve mechanism 25 controls the opening and closing of the passage port in the water distribution chamber 22. The water diversion chamber 22 merges and separates the fluid from the water inlet chamber 23 and then flows through the water outlet chamber. As shown in fig. 6, 7 and 8, the water inlet chamber 23, the water dividing chamber 22 and the water outlet chamber 21 are all rectangular structures; the water inlet chamber 1 is internally divided into 2 same rectangular water inlet cavities by a partition plate, the water diversion chamber 22 is internally divided into 3 same rectangular water diversion cavities by the partition plate, six channel ports are arranged on the water diversion chamber 22, and two channel ports on each water diversion cavity are respectively communicated with the two water inlet cavities; the inside of the water outlet chamber 3 is divided into three independent water outlet cavities by a partition plate, wherein the three independent water outlet cavities are two L-shaped cavities and a rectangular cavity from top to bottom, and each water outlet cavity is respectively provided with a passage port communicated with one water distribution cavity; the water inlet has two levels and arranges the same side at the play water room, the delivery port has 3 and is parallel with the delivery port, and the level is arranged in the same side of play water room 3. Through the shape setting of the water inlet cavity, the water dividing cavity and the water outlet cavity, water can be fed from 2 water inlets, water can be discharged from 3 water outlets, the water inlets and the water outlets can be kept parallel in the same plane, and the L-shaped cavity is arranged to guide fluid to flow out from the same direction, so that the water inlet and outlet structure is suitable for the layout of the whole electric water valve. The control in multichannel water route just can be satisfied in water inlet quantity product delivery port volume be less than or equal to case quantity. As shown in fig. 11, the cam valve mechanism 25 includes a cam 2510, a spool, and a spring 2507; a shaft shoulder is formed in the middle of the valve core, the part above the shaft shoulder penetrates through a channel opening of the water diversion chamber 22 and is positioned in the water diversion chamber 22, a sealing ring is arranged at the joint of the channel opening, and a spring 2507 is arranged between the shaft shoulder and the water outlet chamber 3; the cam 2510 is provided with an annular contact surface which is in a wave shape, the bottom end of the valve core penetrates through the bottom of the water inlet chamber 23, a sealing ring is arranged at the joint, the bottom end of the valve core is always in contact with the contact surface of the cam 2510 under the action of a spring 2507, and when the cam 2510 rotates for a certain angle according to a set value, the valve core is driven to generate linear reciprocating motion to control the closing and opening of a channel opening in the water diversion chamber 22. The blunt and cam contact surface of case bottom forms the contact angle, and both contact surface angles are greater than 0 degree and are less than 45 degrees. In this preferable angle range, friction can be reduced while ensuring sufficient driving force.

The operation of the cam valve mechanism 25 is shown in fig. 11: firstly, the cam 2510 is connected with a driving device (such as a motor and a motor), the valve core keeps closing the passage port in an initial state, the cam 2510 is driven by the device to start rotating, the valve core makes linear reciprocating motion due to a waveform contact surface, when the valve core rises, the part blocking the passage port is opened to be in a circulation state, and when the valve core falls, the passage port returns to a closed state. As shown in fig. 10, a plurality of adjusting grooves 2509 for adjusting water flow are axially distributed on the shaft shoulder of the valve core, and when the opening of the passage in the water dividing chamber is opened, water flows from the adjusting grooves 2509. The larger the number of the adjustment grooves 2509, the larger the water flow rate, and the water flow rate of the mechanism can be controlled by setting the number and size of the adjustment grooves. As shown in fig. 7, six passages of the diversion chamber 22 are respectively provided with a first valve core 2501, a second valve core 2502, a third valve core 2503, a fourth valve core 2504, a fifth valve core 2505 and a sixth valve core 2506, the six passages are annularly distributed, and the six valve cores are driven by an annular contact surface of one cam. All the channels of the mechanism can be controlled by one cam and one contact surface, the control is flexible and changeable, and the volume of the mechanism is greatly saved. As shown in fig. 10 and fig. 11, a spring installation groove 2508 is provided at the top of the valve core, a spring fixing post 2105 is provided at the bottom of the water outlet chamber 21, the spring is installed on the spring fixing post 2105, and the bottom is in the spring installation groove 2508.

In the embodiment, the water inlet chamber 23 and the water outlet chamber 21 are respectively provided with corresponding channel ports for communication, water enters each water distribution area of the water distribution chamber 22 through the channel ports controlled by the valve core of the water inlet chamber 23, and is communicated to each area of the water outlet chamber 21 from each area, and each area corresponds to different water outlets and is discharged from a plurality of water outlets. When the valve core is in work, the actuating driving device rotates the driving cam 2510 according to a set rotating angle, and when the valve core moves to a height set according to the set rotating angle, the functions of closing, opening and flow regulation and control of the channel port can be correspondingly realized. The basic mode of operation is given here as follows: when water enters the first water inlet 2301, the first valve core 2501 is opened singly, water exits from the second water outlet 2102, the third valve core 2503 is opened singly, water exits from the first water outlet 2101, the fifth valve core 2505 is opened singly, and water exits from the third water outlet 2103. When water enters the second water inlet 2302, the second valve core 2502 is opened, water exits from the second water outlet 2102, the fourth valve core 2504 is opened, water exits from the first water outlet 2101, the sixth valve core 2506 is opened, and water exits from the third water outlet 2103. By analogy, various water inlet modes and water outlet modes can be combined according to actual requirements, and the number of the water inlets multiplied by the number of the water outlets is less than or equal to that of the valve cores, so that the control of a multi-channel water channel can be met.

On the basis of the embodiment, as shown in fig. 2, the top of the water outlet chamber 21 is provided with a groove cover 2104 which is sealed by a sealing ring 24, sealing rings 4 are respectively arranged between the water inlet chamber 23 and the water outlet chamber 22 and between the water outlet chamber 21 and the water outlet chamber 22, and the sealing rings 24 are matched with the partition plates of each area in shape, so that the sealing performance between each independent area is ensured. In addition, the water inlet and the water outlet can be interchanged, the water inlet and the water outlet are limited to water inlet from the lower part and water outlet from the upper part, the water inlet from the upper part and the water outlet from the lower part can be realized as long as the water source is connected from the water outlet, and the structure flexibility is improved.

A third embodiment of the present invention is given below with reference to fig. 12 to 20: as shown in fig. 12 and 13, a fluid control valve comprises an outlet chamber, wherein the outlet chamber is of an annular structure and is provided with at least one water outlet in the axial direction; the water inlet chamber 37 is of an annular cylinder structure and is connected to the inside of the water outlet chamber, a hollow column is formed in the center of the water inlet chamber 37, a water storage area is formed between the hollow column and the outer wall 3703 of the water inlet chamber, the water storage area is divided into a plurality of water storage cavities 3701 by partition plates, each water storage cavity 3701 is axially communicated with a water inlet, and at least one channel port is radially communicated with the external water outlet chamber; the cam valve mechanism 38, the cam valve mechanism 38 is installed in the hollow column of the water inlet chamber, and the valve core of the cam valve mechanism 38 penetrates through the water inlet chamber 37 to control the opening or closing of the passage between the water inlet chamber 37 and the water outlet chamber. Through the shape setting of intake chamber and play hydroecium, water inlet and delivery port can keep parallel in the coplanar, realize that the device vertical direction goes out water, and cam valve mechanism hides in intake chamber center department, reduces the volume of device, saves space, is adapted to the overall arrangement of whole electronic water valve. As shown in fig. 13 and 15, the cam valve mechanism 38 includes a cam 3801, a spool 3802, and a spring 3803; the center of the cam 3801 is provided with a driving shaft 3804, and the radial outer profile of the cam 3801 is a wave-shaped contact surface; the inner end of the valve core 3802 keeps contact with the outer contour of the cam 3801, the outer end of the valve core 3802 forms a plug which penetrates through the water inlet chamber 37 to block a passage opening on the outer wall of the water inlet chamber, the spring 3803 is arranged on the valve core 3802, the inner end of the valve core 3802 keeps contact with the contact surface of the cam 3801 all the time under the application force of the spring 3803, and when the cam 3801 rotates at a certain angle according to a set value, the valve core 3802 is driven to generate linear reciprocating motion to control the closing or opening of the passage opening in the water inlet chamber 37. As shown in fig. 13 and 14, four water storage cavities 3701 are equally divided in the water inlet chamber 37, four passage ports are radially and vertically arranged in each water storage cavity 3701, and each water storage cavity 3701 is respectively communicated with four water outlet chambers from top to bottom through four rows of vertically arranged passage ports. As shown in fig. 13 and 15, there are four cams 3801, which are vertically arranged from top to bottom and sequentially correspond to the first water outlet chamber 33, the second water outlet chamber 34, the third water outlet chamber 35 and the fourth water outlet chamber 36, the four cams 3801 are driven by the same driving shaft 3804, and each cam 3801 drives a valve core 3802 with four corresponding ports. The contact point of the inner end of the valve core 3802 is round and contacts with the outer contour of the cam 3801 to form a contact angle, and the angle of the contact surface of the valve core 3802 and the cam 3801 is larger than 0 degree and smaller than 45 degrees. In this preferable angle range, friction can be reduced while ensuring sufficient driving force.

In this embodiment, the inlet chamber 37 and each outlet chamber are respectively provided with a corresponding channel port for communication, and water enters the water storage cavity in the inlet chamber 37 from the water inlet, then enters each outlet chamber through the channel port controlled by the valve core, and is discharged from the corresponding outlet port of each outlet chamber. With reference to the above embodiments, the operation mode is as shown in fig. 16 to fig. 19, the driving shaft 3804 is connected to a power device (e.g. an electric motor, a motor), and the driving device is executed to rotate the driving cam 3708 according to a set rotation angle, so that when the valve core moves to a set height, the functions of closing, opening and controlling the flow rate of the passage port can be correspondingly realized. When the first water inlet 3101 is filled with water, the water flow enters the corresponding water storage cavity 3701 in the water inlet chamber 37, and the water flow in the water storage cavity 3701 respectively enters the first water outlet chamber 33, the second water outlet chamber 34, the third water outlet chamber 35 and the fourth water outlet chamber 36 through the four passage ports from top to bottom under the control of the valve core. Similarly, the water flows entering from the second water inlet 3102, the third water inlet 3103 and the fourth water inlet 3104 can respectively enter the four water outlet chambers controlled by the valve core, and are discharged from the first water outlet 3301, the second water outlet 3401, the third water outlet 3501 and the fourth water outlet 3601. Above be the rivers control scheme of basis, on the basis once more, can realize the combination of multiple rivers control according to actual conditions, should guarantee that water inlet quantity multiplies delivery port volume less than or equal to case quantity, just can satisfy the control in multichannel water route. The flow of the water outlet is adjusted by the quantity and the size of the channel ports between the water inlet chamber and the water outlet chamber. The adaptability is strong, and the flow of the device is flexibly controlled.

In this embodiment, as shown in fig. 13, a water tank cover 31 is disposed on the top of the water inlet chamber 37, the water tank cover 31 covers the water inlet chamber 37 and the first water outlet chamber 33, and four water outlets are disposed on the water tank cover 31 and respectively communicate with four water storage cavities 3701 in the water inlet chamber. As shown in fig. 12, sealing rings 32 are installed between the water tank cover 3101 and the water inlet chamber 37 and between the four water outlet chambers 33, the sealing rings 32 are installed between every two water outlet chambers, and the sealing rings 32 are matched with the partition plates of each area in shape, so that the sealing performance between each independent area is ensured. As shown in fig. 20, a shoulder for mounting the spring 3803 is formed in the middle of the valve body 3802, and this structure facilitates the mounting of the spring.

A fourth embodiment of the present invention is given below with reference to fig. 20 and 21: a fluid control valve comprises a water inlet chamber, a water outlet chamber and a cam valve mechanism; the water inlet chamber and the water outlet chamber are formed by separating a water chamber to form two water inlet chambers and three water outlet chambers which are mutually independent cavities; the upper and lower parts of the three water outlet chambers 42 are respectively provided with at least one passage port which is respectively communicated with the interior of the first water inlet chamber 41 and the second water outlet chamber 43, and the three water outlet chambers 42 are respectively provided with a first water outlet 4201, a second water outlet 4202 and a third water outlet 4203; the first inlet chamber 41 and the second outlet chamber 43 are provided with a first inlet 4101 and a second inlet 4201, respectively. The cam valve mechanism 45 includes a cam 4501, a valve spool including a push rod 4502, a core 4503, and a guide rod 4504, and a spring 4505; a spring 4505 is mounted on the guide rod 4504; one end of the guide rod 4504 is fixed on the side wall of the first water inlet chamber 41, and the other end is assembled with a shaft hole above the core 4503; one end of the push rod 4502 is installed on the shaft hole below the core, and the other end of the push rod passes through the second water inlet chamber 43 and contacts with the end face of the cam 4501; the upper and lower ends of the core 4503 are provided with core sealing rings 4506 to form plugs to block the passage ports of the water outlet chamber, the height difference of the wave contact surface of the cam 4501 is used for driving the push rod 4502, the push rod drives the core to apply the action force of a spring, so that one core simultaneously controls the opening and closing of the upper and lower passage ports of the water outlet chamber, and the passage port on one side is closed corresponding to the passage port on the other side when the passage port on the other side is opened. In this embodiment, two inlet chambers and three outlet chambers are covered by a single chamber cover 44.

On the basis of the embodiment, the upper part and the lower part of each of the three water outlet chambers 42 are respectively provided with 2 passage ports which are respectively communicated with the inside of the first water inlet chamber 41 and the second water inlet chamber 43; the number of the valve cores and the springs is six, and the six valve cores and the springs are circumferentially arranged at 60-degree intervals, and the six push rods 4502 are driven by the end face of one cam 4501. The purpose is to integrate the control on a cam, which corresponds to an operating mode for every 60 degrees of rotation of the cam. The working process of the embodiment is as follows: when water enters from the first water inlet 41 and the second water inlet 43, the motor is executed to control the cam to rotate according to a fixed 60-degree angle, and when the cam rotates 60 degrees, the end face height difference is utilized to drive the push rod 4502, the push rod 4502 drives the valve core to add the acting force of the spring 4505, so that the valve core reciprocates, the corresponding core can open the corresponding channel port on the water outlet chamber 42, and when the channel port on one side is opened, the channel port on the other side is closed. Then flows out from the water outlet of the water outlet chamber.

The water inlet and outlet chambers are arranged axially, radially and horizontally, and the water inlet and outlet chambers are cylindrical or rectangular, but the invention is not limited thereto, and the water inlet and outlet chambers in other directions (such as inclined angle) and the water inlet and outlet chambers in various shapes can be extended in quantity, and the water inlet and outlet chambers can be used interchangeably, that is, the water inlet is changed into the water outlet, and the water outlet is changed into the water inlet, such as 2 in 3 out or 3 in 2 out, 3 in 3 out, 2 in 4 or 4 in 2 out, and so on.

It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the main technical scheme of the invention are covered in the protection scope of the invention.

Claims (25)

1. A fluid control valve, comprising

The water inlet chamber is provided with at least one water inlet;

the water outlet chamber is provided with at least one water outlet;

at least one channel port is arranged between the water inlet chamber and the water outlet chamber for communication, so that each water inlet or water outlet is communicated with at least one water outlet or water inlet;

and the cam valve mechanism controls the opening or closing of the passage between the water inlet chamber and the water outlet chamber.

2. The fluid control valve of claim 1, wherein said cam valve mechanism comprises a cam, a spool and a resilient member; the valve core part is arranged in a channel opening between the water inlet chamber and the water outlet chamber; the cam is provided with a wave-shaped contact surface, the elastic component keeps applying force to the valve core, when the cam rotates for a certain angle according to a set value, the bottom end surface of the valve core is contacted with the contact surface of the cam, the valve core is driven to generate linear reciprocating motion, and the opening and closing of a channel opening in the water chamber are controlled.

3. A fluid control valve according to claim 1 or claim 2, wherein the inlet and outlet chambers are switchable with respect to each other.

4. A fluid control valve according to claim 3, wherein a reservoir chamber is provided between said inlet chamber and said outlet chamber; a water storage cavity is formed in the water storage chamber, the water inlet end of the water storage cavity is in butt joint with the water inlet chamber, and the water outlet end is provided with at least one passage port communicated with the water outlet chamber; the cam valve mechanism controls the opening or closing of the passage opening on the water storage chamber.

5. The fluid control valve of claim 3, wherein a shaft shoulder is formed in the middle of the valve core, the part above the shaft shoulder penetrates through a passage port of the water storage chamber and is positioned in the water storage chamber, a sealing ring is arranged at the joint of the passage port, and a spring is arranged between the shaft shoulder and the water inlet chamber; the bottom end of the valve core penetrates through the bottom of the water inlet chamber, and a sealing ring is arranged at the joint; the valve core bottom end round blunt and the cam contact surface form a contact angle, and the angle of the contact surface is larger than 0 degree and smaller than 45 degrees.

6. The fluid control valve of claim 3, wherein the flow rate of water in the outlet chamber is adjusted by the number and size of the passage openings in the storage chamber and the height difference of the position of the valve core.

7. A fluid control valve according to claim 3 wherein the water storage chamber is divided into two separate chambers, namely a first water storage chamber and a second water storage chamber, by an annular partition plate, and the first water storage chamber and the second water storage chamber are respectively provided with at least one passage port communicated with the water outlet chamber; the upper end of the water inlet chamber is provided with two water inlets, the first water storage chamber is communicated with the first water inlet, and the second water storage chamber is communicated with the second water inlet; 3 channel openings are respectively and annularly distributed on the first water storage chamber and the second water storage chamber, the 3 channel openings in the first water storage chamber are respectively connected with the first valve core, the third valve core and the fifth valve core, and the 3 channel openings in the second water storage chamber are respectively connected with the second valve core, the fourth valve core and the sixth valve core; the water outlet chamber is divided into 3 fan-shaped areas which are the same in size and are independent of each other, each area is provided with a water outlet, and the 3 areas are respectively communicated with a channel port where the first valve core and the second valve core are located, a channel port where the third valve core and the fourth valve core are located and a channel port where the fifth valve core and the sixth valve core are located; 3 water outlets are radially distributed on the water outlet chamber and are respectively communicated with 3 areas in the water outlet chamber.

8. The fluid control valve of claim 7, wherein the cam has inner and outer annular contact surfaces, the inner annular contact surface contacting the bottom ends of the first, third and fifth spools, and the outer annular contact surface contacting the bottom ends of the second, fourth and sixth spools.

9. The fluid control valve of claim 7, wherein the resilient member is a spring, and the inlet chamber has a support post on an upper surface thereof, one end of the spring is connected to the support post, and the other end of the spring is connected to the valve core shoulder.

10. A fluid control valve according to claim 3, wherein a water diversion chamber is provided between said inlet chamber and said outlet chamber, said inlet chamber is divided into a plurality of independent inlet chambers, each of said independent inlet chambers is connected to a water inlet; the water diversion chamber is divided into a plurality of independent water diversion cavities, and each water diversion cavity is provided with at least one passage opening communicated with the water inlet chamber; the water outlet chamber is divided into a plurality of independent water outlet cavities, each water outlet cavity is provided with at least one channel port communicated with the water distribution chamber, and each water outlet cavity is communicated with a water outlet; the cam valve mechanism controls the opening and closing of the passage opening on the water distributing chamber.

11. The fluid control valve according to claim 10, wherein the inlet chamber is divided into 2 identical rectangular inlet chambers by a partition plate, the distribution chamber is divided into 3 identical rectangular distribution chambers by a partition plate, the distribution chamber is provided with six passage ports, and each distribution chamber is provided with two passage ports respectively communicated with the two inlet chambers; the water outlet chamber is divided into three independent water outlet cavities by a partition plate, the three independent water outlet cavities are two L-shaped cavities and a rectangular cavity from top to bottom, and each water outlet cavity is respectively provided with a passage port communicated with one water distribution cavity; the water inlets are provided with two water outlets which are horizontally arranged on the same side of the water outlet chamber, and the number of the water outlets is 3, and the water outlets are parallel to the water outlets and horizontally arranged on the same side of the water outlet chamber; the number of the water inlets multiplied by the water outlet amount is less than or equal to the number of the valve cores.

12. A fluid control valve as defined in claim 10 wherein said resilient member is a spring; a shaft shoulder is formed in the middle of the valve core, the part above the shaft shoulder penetrates through a channel port of the water diversion chamber and is positioned in the water diversion chamber, a sealing ring is arranged at the joint of the channel port, and a spring is arranged between the shaft shoulder and the water outlet chamber; the bottom end of the valve core penetrates through the bottom of the water inlet chamber, and a sealing ring is arranged at the joint; the blunt bottom of the valve core forms a contact angle with the contact surface of the cam, and the angle of the contact surface of the valve core and the cam is larger than 0 degree and smaller than 45 degrees.

13. The fluid control valve of claim 12, wherein a plurality of adjustment grooves are axially formed in a shoulder of the valve body for adjusting the flow of water, and the flow of water is communicated from the adjustment grooves when the opening of the passage in the distribution chamber is opened.

14. The fluid control valve of claim 12, wherein the top of the valve core is provided with a spring mounting groove, the bottom of the outlet chamber is provided with a spring fixing post, the spring is mounted on the spring fixing post, and the bottom of the outlet chamber is arranged in the spring mounting groove.

15. The fluid control valve of claim 12, wherein six passage openings in the branch chamber are respectively provided with a first valve core, a second valve core, a third valve core, a fourth valve core, a fifth valve core and a sixth valve core, the six passage openings are distributed in an annular shape, and the six valve cores are driven by an annular contact surface of one cam.

16. A fluid control valve as defined in claim 3 wherein said outlet chamber is of annular configuration, the outlet chamber having at least one outlet port axially; the water inlet chamber is of an annular cylinder structure and is connected to the inside of the water outlet chamber, a hollow column is formed in the center of the water inlet chamber, a water storage area is formed between the hollow column and the outer wall of the water inlet chamber, the water storage area is divided into a plurality of water storage cavities by partition plates, each water storage cavity is axially communicated with a water inlet, and at least one channel port is radially communicated with the external water outlet chamber; and the cam valve mechanism is arranged in the hollow column of the water inlet chamber, and an upper valve core of the cam valve mechanism penetrates through the water inlet chamber to control the opening or closing of a channel between the water inlet chamber and the water outlet chamber.

17. A fluid control valve according to claim 16, wherein the cam has a drive shaft at its centre and a radially outer cam profile with a wavy contact surface; the inner end of the valve core keeps contact with the outer contour of the cam, and the outer end of the valve core forms a plug which penetrates through the water inlet chamber to block a channel opening on the outer wall of the water inlet chamber; the contact point at the inner end of the valve core is round and blunt, and contacts with the outer contour of the cam to form a contact angle, and the angle of the contact surface of the valve core and the cam is larger than 0 degree and smaller than 45 degrees.

18. The fluid control valve according to claim 16, wherein the water inlet chamber is divided into four water storage chambers, each water storage chamber is radially and vertically arranged with four passage ports, and each water storage chamber is communicated with the four water outlet chambers from top to bottom through four rows of vertically arranged passage ports; the four cams are vertically arranged from top to bottom and sequentially correspond to the first water outlet chamber, the second water outlet chamber, the third water outlet chamber and the fourth water outlet chamber, the four cams are driven by the same driving shaft, and each cam drives the valve cores of the four corresponding channel ports.

19. A fluid control valve according to claim 16, wherein the outlet flow is regulated by the number and size of the ports between the inlet chamber and the outlet chamber.

20. The fluid control valve of claim 16, wherein a cover is disposed on the top of the inlet chamber, the cover covers the inlet chamber and the first outlet chamber, and the cover has four inlets respectively connected to four water storage chambers in the inlet chamber.

21. The fluid control valve of claim 17, wherein the resilient member is a spring, and the valve body has a shoulder formed in a middle portion thereof for receiving the spring.

22. The fluid control valve of claim 3, wherein the inlet chamber and the outlet chamber are separated by a water chamber to form two inlet chambers and three outlet chambers, which are independent cavities; the upper part and the lower part of each of the three water outlet chambers are respectively provided with at least one channel port which is respectively communicated with the first water inlet chamber and the second water outlet chamber, and the three water outlet chambers are respectively provided with a first water outlet, a second water outlet and a third water outlet; the first water inlet chamber and the second water outlet chamber are respectively provided with a first water inlet and a second water inlet.

23. The fluid control valve of claim 22 wherein said valve spool comprises a push rod, a core and a guide rod; the elastic component is a spring, and the spring is arranged on the guide rod; one end of the guide rod is fixed on the side wall of the first water inlet chamber, and the other end of the guide rod is assembled with the shaft hole above the core; one end of the push rod is arranged on the shaft hole below the core, and the other end of the push rod passes through the second water inlet chamber and contacts with the end face of the cam; plugs are formed at the upper end and the lower end of the core to plug the channel openings of the water outlet chamber, the push rod is driven by the aid of the height difference of the wavy contact surface of the cam, the core is driven by the push rod to exert the action force of the spring, the core simultaneously controls the opening and closing of the upper channel opening and the lower channel opening of the water outlet chamber, and the channel opening at one side is closed corresponding to the channel opening at the other side when the channel opening at the other side is opened.

24. A fluid control valve according to claim 23 wherein the three outlet chambers have 2 ports above and below each outlet chamber which communicate with the first inlet chamber and the second inlet chamber respectively; the valve core and the springs are correspondingly six and are circumferentially arranged at 60-degree intervals, and the six push rods are driven by one cam end face.

25. The fluid control valve of claim 22, wherein said two inlet chambers and said three outlet chambers are covered by a water chamber cover.

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