A spring-loaded distribution valve

Abstract

The present invention relates to the technical field of water flow control, in particular to a spring-type distribution valve. When the water pressure at the second water outlet drops to a first preset value, that is, when an externally connected faucet is opened, the water pressure at the second water outlet is lower than the water pressure in the water flow channel. At this time, the float valve core is opened due to the pressure difference at both ends, and the water in the water flow channel can be discharged from the second water outlet. Since the float is movably installed in the water outlet pipe through a float spring, when the externally connected faucet is closed or partially closed, that is, when the water pressure at the second water outlet drops to a second preset value, the float can be reset under the action of the float spring, and the pressure change at the second water outlet will not cause the float to vibrate frequently. Therefore, the service life of the float valve core is relatively long.

Description

Technical Field

[0001] The present invention relates to the technical field of water flow control, and particularly to a spring-type distribution valve. Background Art

[0002] At present, for the pipeline machine with a water tank on the market, it is difficult to clean the inside of its pipeline, and there is long-term stored stale water in the water tank, which is prone to secondary pollution after a long time. The floating ball and air holes in the water tank of the pipeline machine are also prone to breeding bacteria after long-term use. Moreover, the pipeline machine with a water tank occupies a large area. Therefore, in recent years, a pipeline machine without a water tank has emerged on the market. This pipeline machine without a water tank can be directly hung on the wall, reducing the occupied area. At the same time, the inside of the machine is directly connected to the pipeline, providing healthy water that can be used immediately without worrying about the problem of secondary pollution.

[0003] Due to the power problem of the pipeline machine without a water tank itself, when the water supply of the pipeline is greater than the water output of the pipeline machine without a water tank, in order to prevent the pressure inside the pipeline from being too high and causing the phenomenon of pipe bursting, at this time, the pipeline machine without a water tank will stop operating. After the pressure inside the pipeline decreases, the pipeline machine without a water tank will work again. This repeated process causes the pipeline machine without a water tank to repeatedly start and stop, which is likely to reduce the service life of the pipeline machine without a water tank.

[0004] To solve the above problems, a distribution valve has emerged on the market. A Chinese patent with the publication number CN114857302A discloses a diaphragm type distribution valve, which includes a housing. A raw water inlet connected to tap water, a pure water outlet connected to a pipeline machine, a pure water inlet connected to the water outlet end of a pure water machine, and a pressure reducing outlet connected to the water inlet end of the pure water machine are provided on the housing. A water flow channel for connecting the raw water inlet and the pressure reducing outlet is arranged inside the housing. It also includes a pressure reducing valve assembly. The pressure reducing valve assembly is normally open to conduct the raw water inlet and the water flow channel, and the pressure reducing valve assembly can gradually reduce or cut off the water supply from the raw water inlet to the water flow channel. A negative pressure chamber connected to the pure water outlet and a water outlet chamber connected to the pure water inlet are arranged inside the housing. A return port for connecting the water outlet chamber and the water flow channel is arranged inside the housing. A one-way valve assembly for restricting tap water from flowing from the water flow channel to the water outlet chamber is provided at the return port of the housing. A first valve port for connecting the negative pressure chamber and the water outlet chamber is arranged inside the housing. It also includes a negative pressure valve assembly. The negative pressure valve assembly is normally closed to close the first valve port. When the pure water outlet sucks water under negative pressure, the negative pressure valve assembly opens the first valve port. Its characteristics are as follows: An overflow diaphragm is arranged in the water outlet chamber of the housing. The overflow diaphragm can divide the water outlet chamber into a first water outlet chamber and a second water outlet chamber. The first water outlet chamber is connected to the first valve port, and the second water outlet chamber is respectively connected to the return port and the pure water inlet. A first water passing hole for connecting the first water outlet chamber and the second water outlet chamber is arranged on the overflow diaphragm. When there is no negative pressure suction at the pure water outlet, the overflow diaphragm blocks the return port; when there is negative pressure suction at the pure water outlet, the pressure in the first water outlet chamber decreases, and the overflow diaphragm expands and moves in the direction away from the return port under the action of water pressure, opening the return port; when the water inlet flow rate at the pure water inlet increases, the overflow diaphragm moves away from the return port under the action of pressure, the opening degree of the return port increases, and the return flow rate increases; when the water inlet flow rate at the pure water inlet decreases, the overflow diaphragm moves closer to the return port under the action of pressure, the opening degree of the return port decreases, and the return flow rate decreases.

[0005] The problems existing in the prior art are: when there is no negative pressure suction at the pure water outlet, the pressure in the first water outlet chamber will increase instantaneously, and the edge of the overflow diaphragm will deform at a high frequency, resulting in the easy failure of the overflow diaphragm.

[0006] Therefore, the distribution valve in the prior art still needs to be further improved. Summary of the Invention

[0007] To solve the above technical problems, the purpose of the present invention is to provide a spring type distribution valve, which has a simple structure and a long service life.

[0008] The technical solution adopted by the present invention to solve the problem is: a spring-type distribution valve, including a valve body. A mixing chamber, a water flow channel and a pressure relief channel are arranged in the valve body. A water return port is provided on the valve body. The pressure relief channel connects the water flow channel and the water return port. The water return port communicates with the mixing chamber. A first water inlet and a first water outlet connected to the mixing chamber are arranged on the valve body. A second water inlet and a second water outlet connected to the water flow channel are also arranged on the valve body. The first water outlet is connected to the second water inlet. A one-way valve core is provided at the water return port. When the water pressure at the second water outlet rises to a second preset value, the one-way valve core opens, and the water in the water flow channel can be discharged from the water return port to the mixing chamber. A float valve core is provided at the second water outlet. When the water pressure at the second water outlet drops to a first preset value, the float valve core opens, and the water in the water flow channel can be discharged from the second water outlet. The float valve core includes a float spring and a float. The float is movably installed in the second water outlet through the float spring. The float is in dynamic seal with the second water outlet. Due to the setting of the one-way valve core, when the external faucet discharges water, under the negative pressure effect of the water flow channel, the one-way valve core will be blocked more tightly, and a large amount of water can flow out from the external faucet, and the water output will not be reduced due to water return.

[0009] As a further improvement of the above technical solution, the pressure relief channel includes a first water outlet hole, a pressure relief chamber and a second water outlet hole that are connected in sequence. A pressure relief valve core is arranged in the pressure relief chamber. The pressure relief valve core is in dynamic seal with the pressure relief chamber. The first water outlet hole is connected to the water flow channel. The second water outlet hole is connected to the water return port. When the water pressure at the second water outlet is lower than the second preset value, the pressure relief valve core is sealed with the second water outlet hole. When the water pressure at the second water outlet rises to the second preset value, the pressure relief valve core can be disengaged from the seal with the second water outlet hole.

[0010] As a further improvement of the above technical solution, when the water pressure at the water outlet rises to the second preset value, the bottom of the float can abut against the bottom surface of the water flow channel and block the first water outlet hole. The float blocking the first water outlet hole can protect the pressure relief valve core and extend the service life of the pressure relief valve core.

[0011] As a further improvement of the above technical solution, the float valve core further includes a cut-off pad. The cut-off pad is fixedly installed in the water outlet and is used for installing the float spring. The upper and lower parts of the float are a plugging part for plugging the second water outlet and a support leg for plugging the first water outlet hole respectively. A pillar with a size smaller than the second water outlet is arranged between the plugging part and the support leg. When the external faucet is quickly closed, the support leg at the bottom of the float can quickly push the water in the water flow channel towards the first water outlet hole, reducing the water pressure in the water flow channel.

[0012] As a further improvement of the above technical solution, the bottom surface of the water flow channel is a plane, and the plane of the water flow channel uses a support leg to block the first water outlet hole.

[0013] As a further improvement of the above technical solution, a protrusion is provided on the outer edge of the cut-off pad, a mounting groove adapted to the protrusion is provided on the inner side wall of the second water outlet, and a plurality of openings are provided on the cut-off pad.

[0014] As a further improvement of the above technical solution, a groove is provided at the top of the plugging portion, a support rod extending downward is provided at the bottom of the cut-off pad, the upper part of the float spring is sleeved on the support rod, and the lower part of the float spring is installed in the groove.

[0015] As a further improvement of the above technical solution, the pressure relief valve core includes a pressure relief mounting seat, a pressure relief spring and a pressure relief piston connected in sequence. The pressure relief mounting seat is fixedly installed on the valve body. The pressure relief piston is in dynamic seal with the pressure relief cavity, and the pressure relief piston is used to block the second water outlet. The pressure relief piston adjusts the pressure of the pressure relief cavity by cooperating with the pressure relief spring.

[0016] As a further improvement of the above technical solution, the one-way valve core includes a check mounting seat, a check spring and a check plug connected in sequence. The check mounting seat is fixedly installed on the valve body. The check plug is used to block the second water outlet. A plurality of openings are provided on the check mounting seat, and the check plug is used to prevent water flow from flowing back.

[0017] As a further improvement of the above technical solution, a pressure stabilizing valve core is provided at the first water inlet. The pressure stabilizing valve core includes a pressure stabilizing mounting seat, a pressure stabilizing spring and a pressure stabilizing valve plate connected in sequence. The pressure stabilizing mounting seat is fixedly installed on the valve body. The pressure stabilizing valve plate is in dynamic seal with the first water inlet. A plurality of openings are provided on the pressure stabilizing valve plate. By the cooperation of the pressure stabilizing valve plate and the pressure stabilizing spring, the water pressure in the mixing cavity can be stabilized to prevent the internal pressure from increasing and causing the cylinder to burst.

[0018] The beneficial effects of the present invention are as follows: When the water pressure at the second water outlet drops to the first preset value, that is, when the externally connected faucet is opened, the water pressure at the second water outlet is lower than the water pressure in the water flow channel. At this time, the float valve core is opened due to the pressure difference at both ends, and the water in the water flow channel can be discharged from the second water outlet. Since the float is movably installed in the water outlet pipe through the float spring, when the externally connected faucet is closed or partially closed, that is, when the water pressure at the second water outlet drops to the second preset value, the float can reset under the action of the float spring, and the pressure change at the second water outlet will not cause the float to vibrate frequently. Therefore, the service life of this float valve core is relatively long. Description of the Drawings

[0019] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0020] Figure 1 is the front view of the present invention;

[0021] Figure 2 is the right view of the present invention;

[0022] Figure 3 is Figure 2 the sectional view of the A-A part of

[0023] Figure 4 is Figure 2 the partial enlarged view of part B of

[0024] Figure 5 is the sectional view when the water pressure at the second water outlet of the present invention drops to the first preset value;

[0025] Figure 6 is the sectional view when the water pressure at the second water outlet of the present invention rises to the second preset value;

[0026] Figure 7 is the schematic diagram of the usage scenario of the pressure reducing valve of the present invention.

[0027] In the figure: 1-valve body, 11-mixing chamber, 12-water flow channel, 13-pressure relief channel, 131-first water outlet hole, 132-pressure relief chamber, 133-second water outlet hole, 14-water return port, 15-first water inlet, 16-first water outlet, 17-second water inlet, 18-second water outlet, 181-mounting groove, 2-one-way valve core, 21-check valve mounting seat, 22-check valve spring, 23-check valve plug, 3-pressure stabilizing valve core, 31-pressure stabilizing valve mounting seat, 32-pressure stabilizing spring, 33-pressure stabilizing valve plate, 4-float valve core, 41-float spring, 42-float, 421-stop portion, 422-supporting feet, 423-supporting column, 424-groove, 43-cut-off pad, 431-protrusion, 432-supporting rod, 5-pressure relief valve core, 51-pressure relief valve mounting seat, 52-pressure relief spring, 53-pressure relief piston. Specific Embodiments

[0028] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be construed as a limitation on the protection scope of the present invention.

[0029] In the description of the present invention, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0030] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more. Understandings such as "greater than", "less than", "exceeding", etc. do not include the recited number, and understandings such as "above", "below", "within", etc. include the recited number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features. In the description of the present invention, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0031] In a preferred embodiment, the first water outlet 16 and the second water inlet 17 can be interconnected through external water purification equipment, heating equipment and other devices. The first water inlet 15 is used for introducing tap water, and the second water outlet 18 is used for discharging purified water or hot water.

[0032] When the water pressure at the second water outlet drops to a first preset value, that is, when the externally connected water outlet faucet at the second water outlet 18 is opened; when the water pressure at the second water outlet rises to a second preset value, that is, when the externally connected water outlet faucet at the second water outlet 18 is closed or the opening degree decreases. Under the condition that the externally connected faucet can be normally opened and closed, those skilled in the art can measure the first preset value and the second preset value according to the actual use scenario, or can also preset the first preset value and the second preset value in advance, and design the opening pressures of the one-way valve core 2, the float valve core 4 and the pressure relief valve core 5 according to the first preset value and the second preset value.

[0033] Refer to Figures 1-4, including a valve body 1, a mixing chamber 11, a water flow channel 12 and a pressure relief channel 13 are arranged inside the valve body 1, a water return port 14 is provided on the valve body 1, the pressure relief channel 13 connects the water flow channel 12 and the water return port 14, the other end of the water return port 14 communicates with the mixing chamber 11, a one-way valve core 2 is provided at the water return port 14, a first water inlet 15 and a first water outlet 16 communicating with the mixing chamber 11 are arranged on the valve body 1, a pressure stabilizing valve core 3 is provided at the first water inlet 15, a second water inlet 17 and a second water outlet 18 communicating with the water flow channel 12 are further arranged on the valve body 1. When the water pressure at the second water outlet 18 rises to a second preset value, the one-way valve core 2 opens, and the water in the water flow channel 12 can be discharged from the water return port 14 to the mixing chamber 11. A float valve core 4 is provided at the second water outlet 18. When the water pressure at the second water outlet 18 drops to a first preset value, the float valve core 4 opens, and the water in the water flow channel 12 can be discharged from the second water outlet 18. The float valve core 4 includes a float spring 41 and a float 42. The float 42 is movably installed in the second water outlet 18 through the float spring 41, and the float 42 is in dynamic seal with the second water outlet 18.

[0034] In a preferred embodiment, referring to Figure 6 , the pressure relief channel 13 includes a first water outlet hole 131, a pressure relief chamber 132 and a second water outlet hole 133 that are connected in sequence. A pressure relief valve core 5 is arranged in the pressure relief chamber 132. The pressure relief valve core 5 is in dynamic seal with the pressure relief chamber 132. The first water outlet hole 131 is connected to the water flow channel 12, and the second water outlet hole 133 is connected to the water return port 14. When the water pressure at the second water outlet 18 is lower than the second preset value, the pressure relief valve core 5 seals with the second water outlet hole 133. When the water pressure at the second water outlet 18 rises to the second preset value, the pressure relief valve core 5 can be disengaged from the second water outlet hole 133 for sealing.

[0035] In an alternative embodiment, referring to Figure 3 , when the water pressure at the second water outlet 18 rises to the second preset value, the bottom of the float 42 can abut against the bottom surface of the water flow channel 12 and block the first water outlet hole 131.

[0036] In some embodiments, referring to Figure 4 , the float valve core 4 further includes a cut-off pad 43. The cut-off pad 43 is fixedly installed in the second water outlet 18. The cut-off pad 43 is used for installing the float spring 41. The upper and lower parts of the float 42 are a plug portion 421 for plugging the second water outlet 18 and a support leg 422 for plugging the first water outlet hole 131 respectively. A pillar 423 with a size smaller than the second water outlet 18 is arranged between the plug portion 421 and the support leg 422.

[0037] In other embodiments, referring to Figure 4 , the bottom surface of the water flow channel 12 is a flat surface. A protrusion 431 is provided on the outer edge of the cut-off pad 43, and a mounting groove 181 adapted to the protrusion 431 is provided on the inner side wall of the second water outlet 18. A plurality of openings are provided on the cut-off pad 43. A groove 424 is provided at the top of the stopper portion 421, and a support rod 432 extending downward is provided at the bottom of the cut-off pad 43. The upper part of the float spring 41 is sleeved on the support rod 432, and the lower part of the float spring 41 is installed in the groove 424.

[0038] Referring to Figure 6 , the pressure relief valve core 5 includes a pressure relief mounting seat 51, a pressure relief spring 52 and a pressure relief piston 53 connected in sequence. The pressure relief mounting seat 51 is fixedly installed on the valve body 1. The pressure relief piston 53 is in dynamic seal with the pressure relief chamber 132, and the pressure relief piston 53 is used to block the second water outlet hole 133. The one-way valve core 2 includes a check mounting seat 21, a check spring 22 and a check plug 23 connected in sequence. The check mounting seat 21 is fixedly installed on the valve body 1. The check plug 23 is used to block the second water outlet hole 133, and a plurality of openings are provided on the check mounting seat 21.

[0039] Referring to Figure 3 , the pressure stabilizing valve core 3 includes a pressure stabilizing mounting seat 31, a pressure stabilizing spring 32 and a pressure stabilizing valve plate 33 connected in sequence. The pressure stabilizing mounting seat 31 is fixedly installed on the valve body 1. The pressure stabilizing valve plate 33 is in dynamic seal with the first water inlet 15, and a plurality of openings are provided on the pressure stabilizing valve plate 33.

[0040] Use effect:

[0041] Referring to Figure 7 , the first water inlet 15 is externally connected to a water inlet pipe, the first water outlet 16 is externally connected to the water inlet of a water purifier or a heating device, the second water inlet 17 is externally connected to the water outlet of a water purifier or a heating device, and the second water outlet 18 is externally connected to a water outlet faucet.

[0042] When there is tap water supply, the water flow will impact the pressure stabilizing valve plate 33 and cause it to move to the right, thereby slowing down the impact of the water flow and maintaining the water pressure in the mixing chamber 11, avoiding the explosion of the cylinder due to excessive water pressure in the mixing chamber 11. Subsequently, the water flow flows from the first water outlet 16 to the water purifier or the heating device, and the purified or heated water flow will flow from the second water inlet 17 to the water flow channel 12;

[0043] Referring to Figure 5, when the water pressure at the second water outlet 18 drops to the first preset value, that is, when the water outlet faucet connected to the second water outlet 18 is opened, the float 42 will move upward, the stopper portion 421 will disengage from the first water outlet hole 131, and the water flow will flow from the water flow channel 1 to the second water outlet 18 and flow outwards;

[0044] Refer to Figure 6 , when the water pressure at the second water outlet 18 rises to the second preset value, the water output at the second water outlet 18 decreases to a certain extent or stops flowing out, the float 42 will move downward, and the pressure in the water flow channel 12 will increase. At this time, the water flow will flow through the first water outlet hole 131 to the pressure relief chamber 132 and push the pressure relief piston 53 to the right. The pressure relief piston 53 will disengage from the second water outlet hole 133, and then the water flow will push the check valve plug 23 to move leftward and pass through the second water outlet hole 133 to flow to the water return port 14. Finally, the water flow will flow from the water return port 14 to the mixing chamber 11 to achieve the effect of decompressing the water flow channel 12.

[0045] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or directly or indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A spring - type distribution valve, comprising a valve body (1). A mixing chamber (11), a water flow channel (12) and a pressure - relief channel (13) are arranged inside the valve body (1). A water return port (14) is provided on the valve body (1). The pressure - relief channel (13) communicates the water flow channel (12) and the water return port (14), and the water return port (14) communicates with the mixing chamber (11). A first water inlet (15) and a first water outlet (16) which are connected to the mixing chamber (11) are provided on the valve body (1); a second water inlet (17) and a second water outlet (18) which are connected to the water flow channel (12) are further provided on the valve body (1); the first water outlet (16) communicates with the second water inlet (17). It is characterized in that: A one - way valve core (2) is provided at the water return port (14). When the water pressure at the second water outlet (18) rises to a second preset value, the one - way valve core (2) opens, and the water in the water flow channel (12) can be discharged from the water return port (14) to the mixing chamber (11). A float valve core (4) is provided at the second water outlet (18); when the water pressure at the second water outlet (18) drops to a first preset value, the float valve core (4) opens, and the water in the water flow channel (12) can be discharged from the second water outlet (18). The float valve core (4) includes a float spring (41) and a float (42). The float (42) is movably installed in the second water outlet (18) through the float spring (41), and the float (42) is in dynamic seal with the second water outlet (18).

2. A spring - type distribution valve according to claim 1, characterized in that: The pressure - relief channel (13) includes a first water outlet hole (131), a pressure - relief chamber (132) and a second water outlet hole (133) which are connected in sequence. A pressure - relief valve core (5) is arranged in the pressure - relief chamber (132), and the pressure - relief valve core (5) is in dynamic seal with the pressure - relief chamber (132). The first water outlet hole (131) communicates with the water flow channel (12), and the second water outlet hole (133) communicates with the water return port (14). When the water pressure at the second water outlet (18) is lower than the second preset value, the pressure - relief valve core (5) seals with the second water outlet hole (133). When the water pressure at the second water outlet (18) rises to the second preset value, the pressure - relief valve core (5) can be disengaged from the seal with the second water outlet hole (133).

3. A spring - type distribution valve according to claim 2, characterized in that: When the water pressure at the second water outlet (18) rises to the second preset value, the bottom of the float (42) can abut against the bottom surface of the water flow channel (12) and block the first water outlet hole (131).

4. A spring - type distribution valve according to claim 3, characterized in that: The float valve core (4) further includes a cut - off pad (43). The cut - off pad (43) is fixedly installed in the second water outlet (18), and the cut - off pad (43) is used for installing the float spring (41). The upper and lower parts of the float (42) are respectively a stopper part (421) for blocking the second water outlet (18) and a support leg (422) for blocking the first water outlet hole (131), and a pillar (423) with a size smaller than that of the second water outlet (18) is arranged between the stopper part (421) and the support leg (422).

5. A spring-type distribution valve according to claim 4, characterized in that: The bottom surface of the water flow channel (12) is a plane.

6. A spring-type distribution valve according to claim 5, characterized in that: A protrusion (431) is arranged on the outer edge of the cut-off gasket (43), a mounting groove (181) adapted to the protrusion (431) is arranged on the inner side wall of the second water outlet (18), and a plurality of openings are arranged on the cut-off gasket (43).

7. A spring-type distribution valve according to claim 6, characterized in that: A groove (424) is arranged at the top of the stopper part (421), a support rod (432) extending downward is arranged at the bottom of the cut-off gasket (43), the upper part of the float spring (41) is sleeved on the support rod (432), and the lower part of the float spring (41) is installed in the groove (424).

8. A spring-type distribution valve according to claim 2, characterized in that: The pressure relief valve core (5) comprises a pressure relief mounting seat (51), a pressure relief spring (52) and a pressure relief piston (53) which are connected in sequence, the pressure relief mounting seat (51) is fixedly installed on the valve body (1), the pressure relief piston (53) is in dynamic seal with the pressure relief cavity (132), and the pressure relief piston (53) is used for blocking the second water outlet hole (133).

9. A spring-type distribution valve according to claim 2, characterized in that: The one-way valve core (2) comprises a check mounting seat (21), a check spring (22) and a check plug (23) which are connected in sequence, the check mounting seat (21) is fixedly installed on the valve body (1), the check plug (23) is used for blocking the second water outlet hole (133), and a plurality of openings are arranged on the check mounting seat (21).

10. A spring-type distribution valve according to claim 1, characterized in that: A voltage stabilizing valve core (3) is arranged at the first water inlet (15), the voltage stabilizing valve core (3) comprises a voltage stabilizing mounting seat (31), a voltage stabilizing spring (32) and a voltage stabilizing valve plate (33) which are connected in sequence, the voltage stabilizing mounting seat (31) is fixedly installed on the valve body (1), the edge of the voltage stabilizing valve plate (33) is in dynamic seal with the inner wall of the first water inlet (15), and a plurality of openings are arranged on the voltage stabilizing valve plate (33).

Images