CN215806495U

CN215806495U - Adjustable flow valve

Info

Publication number: CN215806495U
Application number: CN202122384591.5U
Authority: CN
Inventors: 张克海; 徐智洋
Original assignee: Zhejiang Kebo Electrical Appliances Co ltd
Current assignee: Zhejiang Kebo Electrical Appliances Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-02-11
Anticipated expiration: 2031-09-28

Abstract

The utility model belongs to the technical field of fluid control, and particularly relates to an adjustable flow valve which comprises a valve body assembly, a flow regulating assembly, an electric driving mechanism and a transmission mechanism, wherein a first fluid port, a second fluid port and a third fluid port are arranged on the valve body assembly; the fixed seat is provided with a first fluid channel, a second fluid channel and a third fluid channel, a first adjusting flow channel and a second adjusting flow channel are arranged on the surface of one side, which is attached to the rotating disc, of the fixed seat, a radial communicating flow channel is arranged on the rotating disc, and in at least part of paths, which rotate towards the first direction relative to the fixed seat, of the rotating disc, the overlapping area of the radial communicating flow channel and the first adjusting flow channel gradually changes from small to small and the overlapping area of the radial communicating flow channel and the second adjusting flow channel gradually changes from small to large. The flow control that two runners are converged or shunted into two runners is realized through the cooperation of the fixed seat and the rotating disc, and the structure is simple.

Description

Adjustable flow valve

Technical Field

The utility model belongs to the technical field of fluid control, and particularly relates to an adjustable flow valve.

Background

In the field of fluid control, two fluids in different states or two different media are mixed, for example, in devices such as water dispensers and water heaters which need a function of adjusting water temperature, the position of a handle is adjusted by hands in the prior art so as to control the opening and closing ratio of a hot water channel and a cold water channel, thereby adjusting the water temperature. Patent CN 201910372659.2 discloses a constant-temperature and constant-flow water mixing valve, which includes a hot water inlet channel, a cold water inlet channel, and a mixed water outlet channel, wherein the water outlet ends of the hot water inlet channel and the cold water inlet channel are intersected with the water inlet end of the mixed water outlet channel, and a switch valve capable of communicating or closing the three channels is arranged at the intersection. The hot water inlet channel is provided with a hot water outlet regulating valve and a hot water flow meter, the cold water inlet channel is provided with a cold water outlet regulating valve and a cold water flow meter, and the mixed water outlet channel is provided with a third temperature sensor; the constant-temperature constant-flow water mixing valve also comprises a control panel; after the switch valve is opened, the control panel controls the opening degrees of the hot water outlet regulating valve and the cold water outlet regulating valve according to the temperature detected by the third temperature sensor to realize the constancy of the outlet water temperature of the mixed water outlet channel, and meanwhile, the control panel controls the opening degrees of the hot water outlet regulating valve and the cold water outlet regulating valve according to the sum of the flow detected by the hot water flow meter and the cold water flow meter to realize the constancy of the outlet water flow of the mixed water outlet channel. The above control method involves a plurality of devices such as a regulating valve and a flow meter, and is complicated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide an adjustable flow valve.

The technical scheme adopted by the utility model is as follows: an adjustable flow valve comprises a valve body assembly, a flow regulating assembly arranged in the valve body assembly, an electric driving mechanism arranged on the valve body assembly and a transmission mechanism between the flow regulating assembly and the electric driving mechanism, wherein a first fluid through hole, a second fluid through hole and a third fluid through hole are formed in the valve body assembly;

the fixed seat is provided with a first fluid channel communicated with the first fluid port, a second fluid channel communicated with the second fluid port and a third fluid channel communicated with the third fluid port, a first adjusting flow passage communicated with the second fluid passage and a second adjusting flow passage communicated with the third fluid passage are arranged on the surface of one side, which is attached to the rotating disc, of the fixed seat, the outlet of the first fluid channel is arranged at the rotating shaft center of the rotating disc, a radial communicating flow channel with one end positioned at the rotating shaft center is arranged on the surface of one side of the rotating disc, which is jointed with the fixed seat, in at least part of the path of the rotating disc rotating relative to the fixed seat in the first direction, the area of the area formed by overlapping the radial communication flow passage and the first adjusting flow passage gradually changes from small to small, and the area of the area formed by overlapping the radial communication flow passage and the second adjusting flow passage gradually changes from small to large.

In a path of the rotating disc rotating towards the first direction relative to the fixed seat, the rotating disc is provided with a first position where the radial communication flow channel is located at an outlet of the second fluid port and forms a flow area with the second adjusting flow channel and forms a flow area with the third fluid port, and a second position where the radial communication flow channel is located at an outlet of the third fluid port and forms a flow area with the first adjusting flow channel and forms a flow area with the second fluid port, wherein the flow area is zero.

The boundary of the first adjusting flow channel consists of a first constant-diameter circular arc line and a first reducing spiral line which take the rotating shaft center of the rotating disc as the circle center, one ends of the first constant-diameter circular arc line and the first reducing spiral line are connected with the outlet of the second fluid port and separated by a certain distance, and the other ends of the first constant-diameter circular arc line and the first reducing spiral line are intersected or connected through a transition line; and/or the boundary of the second adjusting flow channel consists of a second equal-diameter circular arc line and a second reducing spiral line which take the rotating shaft center of the rotating disc as the circle center, one ends of the second equal-diameter circular arc line and the second reducing spiral line are connected with the outlet of the second fluid port and are separated by a certain distance, and the other ends of the second equal-diameter circular arc line and the second reducing spiral line are intersected or connected through a transition line.

The boundary of the first adjusting flow channel consists of a first constant-diameter circular arc line and a first reducing spiral line which take the rotating shaft center of the rotating disc as the circle center, one ends of the first constant-diameter circular arc line and the first reducing spiral line are connected with the outlet of the second fluid port and separated by a certain distance, and the other ends of the first constant-diameter circular arc line and the first reducing spiral line are intersected or connected through a transition line;

the boundary of the second adjusting flow channel consists of a second equal-diameter circular arc line and a second reducing spiral line which take the rotating shaft center of the rotating disc as the circle center, one ends of the second equal-diameter circular arc line and the second reducing spiral line are connected with the outlet of the second fluid port and separated by a certain distance, and the other ends of the second equal-diameter circular arc line and the second reducing spiral line are intersected or connected through a transition line;

the radius of the first equal-diameter arc line is larger than that of the second equal-diameter arc line, and the maximum radius of the first reducing spiral line is larger than that of the second reducing spiral line.

The minimum radius of the second reducing spiral line is equal to or larger than the radius of the second equal-diameter circular arc line, and the maximum radius of the first reducing spiral line is smaller than or equal to the radius of the first equal-diameter circular arc line.

The valve body subassembly includes the valve body, goes out the water stand, the valve body links to each other with a water stand and forms the valve pocket, the flow control subassembly sets up in the valve pocket between the two, first fluid port, second fluid port and third fluid port set up in the one end of going out the water stand and keeping away from the valve body, a side terminal surface that the rolling disc was kept away from to the fixing base and go out to be equipped with first sealing member between the water stand and make the fixing base and go out to form the three closed cavity of first fluid port and first fluid passage, second fluid port and second fluid passage, third fluid port and third fluid passage of intercommunication respectively of phase separation between the water stand.

The water outlet seat is internally provided with a sealing element limiting rib, the first sealing element is respectively provided with three grooves corresponding to the three closed cavities, and the sealing element limiting rib is positioned on the inner sides of the three grooves to limit the first sealing element.

The electric driving mechanism is provided with an output shaft for rotating output, the transmission mechanism comprises an eccentric wheel which is in linkage fit with the circumferential direction of the output shaft, a microswitch is fixed on the valve body assembly, and in the process that the electric driving mechanism outputs driving force and enables the rotating disc to rotate through transmission of the transmission mechanism, the eccentric wheel rotates and the cam part of the eccentric wheel touches the microswitch at partial position.

The transmission mechanism comprises a rotating shaft, a second linkage hole for the rotating shaft to penetrate through is formed in the eccentric wheel, and a third linkage hole for the rotating shaft to penetrate through is formed in one end, far away from the fixed seat, of the rotating disc;

one end of the rotating shaft extends into the second linkage hole to be in linkage fit with the circumferential direction of the eccentric wheel, the other end of the rotating shaft penetrates through the valve body to extend into the third linkage hole to be in linkage fit with the circumferential direction of the rotating disc, and an O-shaped sealing ring is arranged between the rotating shaft and the valve body;

the valve body assembly comprises a motor base connected with the valve body, the electric driving mechanism is arranged on the motor base, the eccentric wheel is arranged between the motor base and the valve body, and the output shaft penetrates through the motor base and is connected with the eccentric wheel;

and a compressed compression spring is arranged between the eccentric wheel and the rotating shaft.

A second sealing element is arranged between the valve body and the water outlet seat, an annular groove for placing the second sealing element is formed in the valve body, an annular convex seat for extruding the second sealing element is arranged on the water outlet seat, and the surfaces of two sides of the second sealing element are respectively in sealing fit with the bottom of the annular groove and the outer end face of the annular convex seat; the second sealing element is used for forming a deformation convex ring by respectively protruding the surfaces of two sides in sealing fit.

The utility model has the following beneficial effects: the utility model provides an adjustable flow valve with a simple structure, which realizes the control of the flow rate of converging or dividing two flow channels into two flow channels through the matching of a fixed seat and a rotating disc, and has a simple structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.

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

FIG. 2 is a cross-sectional view of one embodiment of the present invention;

FIG. 3 is a top view (a) of the fixing base and a bottom view (b) of the rotating disk according to an embodiment of the present invention;

FIGS. 4 (a) - (c) are schematic views of states of three positions of the rotating disc in the process of rotating relative to the fixing seat, wherein the upper view is a cross-sectional view and the lower view is an overlapping schematic view;

FIG. 5 is a schematic view of the structure of the water outlet base (a) and the first sealing member (b) according to an embodiment of the present invention;

FIG. 6 is a schematic view of the structure of the valve body (a) and the second sealing member (b) in one embodiment of the present invention;

FIG. 7 is a cross-sectional view of a second seal;

FIG. 8 is a schematic structural diagram of an eccentric wheel;

in the figure, 101, the first fluid port; 102, a second fluid port; 103, a third fluid port; 2, fixing a base; 201, a first fluid channel; 202, a second fluid channel; 203, a third fluid passage; 204, a first regulating flow channel; 205, a second regulating flow channel; 3, rotating the disc; 301, radially communicating the flow channels; 302, a third linkage aperture; 4, a valve body; 401, a ring groove; 5, a water outlet seat; 501, limiting ribs of a sealing element; 502, an annular boss; 6, a first seal; 601, slotting; 7, a rotating shaft; 8, an eccentric wheel; 801, a first linkage hole; 802, a second linkage hole; 9, an output shaft; 10, a microswitch; 11, an O-shaped sealing ring; 12, a compression spring; 13, a second seal; 1301, deforming the convex ring; and 14, a motor base.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, which are not described in any more detail in the following embodiments.

The terms of direction and position of the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the present invention.

As shown in fig. 1 and 2, an adjustable flow valve includes a valve body assembly, a flow rate adjusting assembly disposed in the valve body assembly, an electric driving mechanism disposed on the valve body assembly, and a transmission mechanism between the flow rate adjusting assembly and the electric driving mechanism, wherein the valve body assembly is provided with a first fluid port 101, a second fluid port 102, and a third fluid port 103, the flow rate adjusting assembly includes a fixed seat 2 fixed with respect to the valve body assembly and a rotating disc 3 attached to the fixed seat 2 and capable of rotating with respect to the fixed seat 2, and the electric driving mechanism outputs a driving force and rotates the rotating disc 3 through transmission of the transmission mechanism;

as shown in fig. 3 (a), the fixed seat 2 is provided with a first fluid passage 201 communicated with the first fluid port 101, a second fluid passage 202 communicated with the second fluid port 102, and a third fluid passage 203 communicated with the third fluid port 103, as shown in fig. 3 (b), a first regulation flow passage 204 communicated with the second fluid passage 202 and a second regulation flow passage 205 communicated with the third fluid passage 203 are provided on one side surface of the fixed seat 2 attached to the rotary disk 3, an outlet of the first fluid passage 201 is provided at the rotation axis of the rotary disk 3, a radial communication flow passage 301 provided in a radial direction with one end positioned at the rotation axis of the rotary disk 3 is provided on one side surface of the rotary disk 3 attached to the fixed seat 2, so that the radial communication flow passage 301 and the first fluid passage 201 are always communicated and have a constant flow area, as shown in fig. 4, in at least a part of a path of the rotary disk 3 rotating in a first direction relative to the fixed seat 2, the area of the region formed by overlapping the radial communication flow passage 301 and the first adjustment flow passage 204 gradually changes from small to small, and the area of the region formed by overlapping the radial communication flow passage 301 and the second adjustment flow passage 205 gradually changes from small to large, and when the radial communication flow passage and the second adjustment flow passage rotate in opposite directions, the area changes in the opposite directions. Therefore, the flow control that the two flow passages are converged or divided into the two flow passages can be realized through the matching of the fixed seat and the rotating disc, and the structure is simple.

In a path along which the rotating disc 3 rotates in the first direction with respect to the fixed seat 2, the rotating disc 3 has a first position at which the radial communication flow passage 301 is located at the outlet of the second fluid port 102 and the flow area formed by the second regulation flow passage 205 and the flow area formed by the third fluid port 103 are both zero, and a second position at which the radial communication flow passage 301 is located at the outlet of the third fluid port 103 and the flow area formed by the first regulation flow passage 204 and the flow area formed by the second fluid port 102 are both zero.

Further, as shown in fig. 3 (a), the boundary of the first adjusting flow channel 204 is composed of a first constant diameter arc line and a first reducing helix line, which use the rotation axis of the rotating disc 3 as the center of circle, one end of the first constant diameter arc line and one end of the first reducing helix line are connected with the outlet of the second fluid port 102 and separated by a certain distance, and the other ends are connected with each other by a crossing line or a transition line, in the figure, the first adjusting flow channel is connected by a fillet transition line, which is more convenient for processing; the boundary of the second adjusting flow channel 205 is composed of a second equal-diameter circular arc line and a second reducing spiral line, which use the rotation axis of the rotating disc 3 as the center of circle, one end of the second equal-diameter circular arc line and one end of the second reducing spiral line are connected with the outlet of the second fluid port 102 and separated by a certain distance, and the other ends are connected with each other through a fillet transition line in a connection diagram, namely, the second equal-diameter circular arc line and the second reducing spiral line are connected through the fillet transition line, so that the processing is more convenient.

Furthermore, the radius of the first equal-diameter arc line is larger than that of the second equal-diameter arc line, and the maximum radius of the first reducing spiral line is larger than that of the second reducing spiral line.

Furthermore, the minimum radius of the second reducing spiral line is equal to or larger than the radius of the second equal-diameter arc line, and the maximum radius of the first reducing spiral line is smaller than or equal to the radius of the first equal-diameter arc line.

As shown in fig. 2, the valve body assembly includes a valve body 4, a water outlet seat 5, and a motor seat 14, the valve body 4 is connected to the water outlet seat 5 to form a valve cavity, the flow rate adjusting assembly is disposed in the valve cavity between the two, the first fluid port 101, the second fluid port 102, and the third fluid port 103 are disposed at an end of the water outlet seat 5 away from the valve body 4, and a first sealing member 6 is disposed between an end surface of the fixing seat 2 away from the rotating disk 3 and the water outlet seat 5 to form three closed cavities which are separated and respectively communicated with the first fluid port 101 and the first fluid passage 201, the second fluid port 102 and the second fluid passage 202, and the third fluid port 103 and the third fluid passage 203, between the fixing seat 2 and the water outlet seat 5. The valve body 4 and the water outlet seat 5 are connected and fastened through a threaded fastener.

As shown in fig. 5, a sealing element limiting rib 501 is arranged in the water outlet base 5, three grooves 601 are respectively arranged on the first sealing element 6 corresponding to the three closed cavities, and the sealing element limiting rib 501 is located inside the three grooves 601 to limit the first sealing element 6.

As shown in fig. 2, the electric driving mechanism is provided with an output shaft 9 for outputting rotation, the transmission mechanism comprises an eccentric wheel 8 which is in linkage fit with the output shaft 9 in the circumferential direction, the structure of the eccentric wheel 8 is as shown in fig. 8, a micro switch 10 is fixed on the valve body assembly, in the process that the electric driving mechanism outputs driving force and the rotating disc 3 rotates through transmission of the transmission mechanism, the eccentric wheel 8 rotates and touches the micro switch 10 at a cam part of the position, and the micro switch 10 can be connected with a control device, so that electric automatic control of some functions can be realized.

The transmission mechanism comprises a rotating shaft 7, a first linkage hole 801 for an output shaft 9 to penetrate through and a second linkage hole 802 for the rotating shaft 7 to penetrate through are arranged on the eccentric wheel 8, and a third linkage hole 302 for the rotating shaft 7 to penetrate through is arranged at one end, far away from the fixed seat 2, of the rotating disc 3;

one end of the rotating shaft 7 extends into the second linkage hole 802 to be in linkage fit with the eccentric wheel 8 in the circumferential direction, the other end of the rotating shaft passes through the valve body 4 to extend into the third linkage hole 302 to be in linkage fit with the rotating disc 3 in the circumferential direction, and an O-shaped sealing ring 11 is arranged between the rotating shaft 7 and the valve body 4;

the valve body assembly comprises a motor base 14 connected with the valve body 4, the electric driving mechanism is arranged on the motor base 14, the eccentric wheel 8 is arranged between the motor base 14 and the valve body 4, and the output shaft 9 penetrates through the motor base 14 and is connected with the eccentric wheel 8;

a compressed compression spring 12 is arranged between the eccentric wheel 8 and the rotating shaft 7. The tight fit of the rotating shaft 7, the rotating disc 3, the fixed seat 2 and the water outlet seat 5 can be realized through the compression spring 12, and the whole assembly structure is simple and convenient to assemble.

A second sealing element 13 is arranged between the valve body 4 and the water outlet seat 5, an annular groove 401 for placing the second sealing element 13 is arranged on the valve body 4, an annular convex seat 502 for extruding the second sealing element 13 is arranged on the water outlet seat 5, and the two side surfaces of the second sealing element 13 are respectively in sealing fit with the bottom of the annular groove 401 and the outer end surface of the annular convex seat 502; the two side surfaces of the second sealing element 13 for forming sealing fit are respectively protruded to form a deformation convex ring 1301. The deformation convex ring 1301 deforms under the extrusion of the valve body 4 and the water outlet seat 5, so that the sealing effect is better.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the utility model is not limited by the scope of the appended claims.

Claims

1. The utility model provides an adjustable flow valve, includes the valve body subassembly, sets up flow control assembly in the valve body subassembly, sets up the electric drive mechanism on the valve body subassembly and the drive mechanism between flow control assembly and electric drive mechanism, be equipped with first fluid port (101), second fluid port (102) and third fluid port (103) on the valve body subassembly, its characterized in that: the flow regulating assembly comprises a fixed seat (2) fixed relative to the valve body assembly and a rotating disc (3) which is attached to the fixed seat (2) and can rotate relative to the fixed seat (2), and the electric driving mechanism outputs driving force and drives the rotating disc (3) to rotate through transmission of a transmission mechanism;

a first fluid channel (201) communicated with the first fluid port (101), a second fluid channel (202) communicated with the second fluid port (102) and a third fluid channel (203) communicated with the third fluid port (103) are arranged on the fixed seat (2), a first adjusting flow channel (204) communicated with the second fluid channel (202) and a second adjusting flow channel (205) communicated with the third fluid channel (203) are arranged on one side surface of the fixed seat (2) jointed with the rotating disc (3), an outlet of the first fluid channel (201) is arranged at the rotating shaft center of the rotating disc (3), a radial communicating flow channel (301) with one end positioned at the rotating shaft center is arranged on one side surface of the rotating disc (3) jointed with the fixed seat (2), and in at least part of paths of the rotating disc (3) rotating towards the first direction relative to the fixed seat (2), the area of the area formed by overlapping the radial communication flow passage (301) and the first adjusting flow passage (204) is gradually changed from small to small, and the area of the area formed by overlapping the radial communication flow passage (301) and the second adjusting flow passage (205) is gradually changed from small to large.

2. The adjustable flow valve of claim 1 wherein: in the path that the rotating disc (3) rotates towards the first direction relative to the fixed seat (2), the rotating disc (3) is provided with a first position where the radial communication flow channel (301) is located at the outlet of the second fluid port (102), the flow area formed by the radial communication flow channel and the second adjusting flow channel (205) is zero, and a second position where the radial communication flow channel (301) is located at the outlet of the third fluid port (103), the flow area formed by the radial communication flow channel and the first adjusting flow channel (204) is zero, and the flow area formed by the radial communication flow channel and the second fluid port (102) is zero.

3. The adjustable flow valve of claim 2 wherein: the boundary of the first adjusting flow channel (204) is composed of a first constant-diameter circular arc line and a first reducing spiral line which take the rotating shaft center of the rotating disc (3) as the circle center, one ends of the first constant-diameter circular arc line and the first reducing spiral line are connected with the outlet of the second fluid port (102) and are separated by a certain distance, and the other ends of the first constant-diameter circular arc line and the first reducing spiral line are intersected or connected through a transition line; and/or the boundary of the second adjusting flow channel (205) is composed of a second equal-diameter arc line and a second reducing spiral line which take the rotating shaft center of the rotating disc (3) as the center of a circle, one ends of the second equal-diameter arc line and the second reducing spiral line are connected with the outlet of the second fluid port (102) and are separated by a certain distance, and the other ends of the second equal-diameter arc line and the second reducing spiral line are crossed or connected with a transition line.

4. The adjustable flow valve of claim 3 wherein: the boundary of the first adjusting flow channel (204) is composed of a first constant-diameter circular arc line and a first reducing spiral line which take the rotating shaft center of the rotating disc (3) as the circle center, one ends of the first constant-diameter circular arc line and the first reducing spiral line are connected with the outlet of the second fluid port (102) and are separated by a certain distance, and the other ends of the first constant-diameter circular arc line and the first reducing spiral line are intersected or connected through a transition line;

the boundary of the second adjusting flow channel (205) is composed of a second equal-diameter circular arc line and a second reducing spiral line which take the rotating shaft center of the rotating disc (3) as the center of a circle, one ends of the second equal-diameter circular arc line and the second reducing spiral line are connected with the outlet of the second fluid port (102) and are separated by a certain distance, and the other ends of the second equal-diameter circular arc line and the second reducing spiral line are intersected or connected through a transition line;

5. The adjustable flow valve of claim 4 wherein: the minimum radius of the second reducing spiral line is equal to or larger than the radius of the second equal-diameter circular arc line, and the maximum radius of the first reducing spiral line is smaller than or equal to the radius of the first equal-diameter circular arc line.

6. The adjustable flow valve of any of claims 1-5 wherein: the valve body subassembly includes valve body (4), goes out water stand (5), valve body (4) link to each other with play water stand (5) and form the valve pocket, the flow control subassembly sets up in the valve pocket between the two, first fluid port (101), second fluid port (102) and third fluid port (103) set up in the one end of going out water stand (5) and keeping away from valve body (4), fixing base (2) are kept away from one side terminal surface of rolling disc (3) and are gone out to be equipped with between water stand (5) first sealing member (6) and make fixing base (2) and go out to form the three closed cavity of phase separation intercommunication first fluid port (101) and first fluid passageway (201), second fluid port (102) and second fluid passageway (202), third fluid port (103) and third fluid passageway (203) respectively between water stand (5).

7. The adjustable flow valve of claim 6 wherein: it is equipped with sealing member spacing rib (501) in water outlet seat (5), it is equipped with three fluting (601) respectively to correspond three closed cavity on first sealing member (6), sealing member spacing rib (501) are located three fluting (601) inboard and form spacingly to first sealing member (6).

8. The adjustable flow valve of claim 6 wherein: the electric driving mechanism is provided with an output shaft (9) capable of rotating to output, the transmission mechanism comprises an eccentric wheel (8) which is in circumferential linkage fit with the output shaft (9), a microswitch (10) is fixed on the valve body assembly, the electric driving mechanism outputs driving force and enables the rotating disc (3) to rotate through transmission of the transmission mechanism, and the eccentric wheel (8) rotates and touches the microswitch (10) at the cam position of part of the eccentric wheel.

9. The adjustable flow valve of claim 8 wherein: the transmission mechanism comprises a rotating shaft (7), a second linkage hole (802) for the rotating shaft (7) to penetrate through is formed in the eccentric wheel (8), and a third linkage hole (302) for the rotating shaft (7) to penetrate through is formed in one end, far away from the fixed seat (2), of the rotating disc (3);

one end of the rotating shaft (7) extends into the second linkage hole (802) to be in linkage fit with the eccentric wheel (8) in the circumferential direction, the other end of the rotating shaft penetrates through the valve body (4) to extend into the third linkage hole (302) to be in linkage fit with the rotating disc (3) in the circumferential direction, and an O-shaped sealing ring (11) is arranged between the rotating shaft (7) and the valve body (4);

the valve body assembly comprises a motor base (14) connected with the valve body (4), the electric driving mechanism is arranged on the motor base (14), the eccentric wheel (8) is arranged between the motor base (14) and the valve body (4), and the output shaft (9) penetrates through the motor base (14) and is connected with the eccentric wheel (8);

a compressed compression spring (12) is arranged between the eccentric wheel (8) and the rotating shaft (7).

10. The adjustable flow valve of claim 6 wherein: a second sealing element (13) is arranged between the valve body (4) and the water outlet seat (5), an annular groove (401) for placing the second sealing element (13) is formed in the valve body (4), an annular convex seat (502) for extruding the second sealing element (13) is arranged on the water outlet seat (5), and the two side surfaces of the second sealing element (13) are respectively in sealing fit with the bottom of the annular groove (401) and the outer end surface of the annular convex seat (502); the two side surfaces of the second sealing piece (13) for forming sealing fit are respectively protruded to form deformation convex rings (1301).