CN215891128U - Hydraulic control valve and water supply system - Google Patents

Abstract

The utility model provides a hydraulic control valve, which relates to the technical field of sanitary products and comprises a valve body and a piston arranged in the valve body, wherein the valve body is provided with a water inlet end and a water outlet end, and the water inlet end is communicated with the water outlet end to form a water passing channel; the piston is configured to be driven to move along the water inlet channel by the pressure of the water outlet end so as to control the opening degree of the water inlet channel by matching with a sealing piece arranged at the water inlet end; when the water outlet end is in a closed state, the piston is in abutting seal with the sealing piece and is closed corresponding to the water inlet channel. Therefore, when the water outlet end is closed, the water outlet pipe or the water outlet component arranged on the downstream side of the water inlet channel cannot be influenced by the water pressure or the water hammer impact on the upstream side of the water inlet end, and the problems that a hose or other components connected with the water outlet component are exploded when the water outlet component is closed are avoided. The present application further provides a water supply system.

Description

Hydraulic control valve and water supply system

Technical Field

The utility model relates to the technical field of bathroom products, in particular to a hydraulic control valve and a water supply system.

Background

A spray gun for cleaning a toilet or a toilet floor is generally installed beside a toilet in a toilet. The spray gun is normally connected directly to the wall inlet angle valve by a hose, and the angle valve is normally open because it shares an angle valve with the toilet, which supplies water to both the toilet tank and the spray gun. However, in use it has been found that when the gun is in the off condition, the hose will be under high pressure for a prolonged period of time due to the high tap water pressure. In addition, the water hammer impact exists in the tap water pipe, so that the service life of the hose is shortened suddenly in the past, and even the risk of pipe explosion exists.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a hydraulic control valve, aiming at solving the problems that the service life of a hose is reduced easily and the risk of pipe explosion exists easily due to the connection of the existing pipeline.

The utility model adopts the following scheme:

a hydraulic control valve comprises a valve body and a piston arranged in the valve body, wherein the valve body is provided with a water inlet end and a water outlet end, and the water inlet end is communicated with the water outlet end to form a water passing channel; the piston is configured to be driven to move along the water inlet channel by the pressure of the water outlet end so as to control the opening degree of the water inlet channel by matching with a sealing piece arranged at the water inlet end; when the water outlet end is in a closed state, the piston is in abutting seal with the sealing element and is closed corresponding to the water inlet channel.

As a further improvement, the piston has a pressure-bearing face disposed adjacent the outlet end and a sealing face for sealing engagement with the seal and valve body.

As a further improvement, an air cavity is formed between the piston and the valve body, and air enters or is discharged through the vent hole of the valve body when the piston moves.

As a further improvement, an elastic element is sleeved on the piston and is arranged in the air cavity; the piston is configured to move in a direction away from the sealing element when the elastic force of the elastic element is greater than the pressure of the water outlet end, and the opening degree of the water inlet channel is gradually increased; or when the elastic force of the elastic piece is smaller than the pressure of the water outlet end, the elastic piece moves towards the direction close to the sealing piece, and the opening degree of the water inlet channel is gradually reduced.

As a further improvement, the water inlet device further comprises a water inlet base arranged on the water inlet end side, and the sealing member is arranged on the water inlet base.

As a further improvement, a flow dividing part is arranged at the center of the water inlet base, the sealing element is embedded on the flow dividing part and is pressed tightly through a fixing element, and a water inlet is formed in the circumferential direction of the fixing element.

As a further improvement, a water inlet groove is arranged along the peripheral side of the water inlet base and communicated with the water inlet, so that water flow enters the water inlet from the peripheral side of the water inlet base.

As a further improvement, the piston is provided with a water through hole for communicating the water inlet channel with the water outlet end.

As a further improvement, the number of the water outlet ends is two, namely a first water outlet end and a second water outlet end, and the piston is arranged in a first water passing channel formed by the water inlet end and the first water outlet end.

In addition, a water supply system is provided, which comprises a waterway pipeline and a hydraulic control valve which is in adaptive connection with the waterway pipeline, wherein the hydraulic control valve is the hydraulic control valve.

By adopting the technical scheme, the utility model can obtain the following technical effects:

the hydraulic control valve is characterized in that a piston is arranged in the water outlet channel to control the opening degree of the water inlet channel. When the water outlet end is in a closed state, the piston moves to the water inlet channel to be closed, so that the water outlet pipe or the water outlet component arranged on the downstream side of the water inlet channel cannot be influenced by the water pressure or the water hammer impact on the upstream side of the water inlet end, and the problems that a hose or other water outlet components connected with the water outlet component are exploded when the water outlet component is closed are avoided. The advantages of the present application are apparent compared to the prior art.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

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

FIG. 2 is a schematic structural view of an embodiment of the present invention with an open water inlet channel (wherein the line with arrows indicates the water flow direction);

FIG. 3 is a schematic structural view of a closed water inlet channel according to an embodiment of the present invention (wherein the line with arrows indicates the water flow direction);

FIG. 4 is a schematic structural diagram of a piston according to one embodiment of the present invention;

FIG. 5 is a schematic structural view of a seal according to one embodiment of the present invention;

FIG. 6 is a cross-sectional view of a seal according to one embodiment of the present invention;

FIG. 7 is an exploded view of a hydraulic control valve according to one embodiment of the present invention;

FIG. 8 is a schematic view of the construction of a water supply system according to one embodiment of the present invention with the spray gun shut off;

FIG. 9 is a schematic view of the structure of the water supply system of one embodiment of the present invention with the spray gun open;

FIG. 10 is a schematic view of a spray gun in a water supply system according to yet another embodiment of the present invention in a closed configuration;

fig. 11 is a schematic view showing a structure when a spray gun is turned on in a water supply system according to still another embodiment of the present invention.

Icon:

1-a valve body; 11-water inlet end; 12-water outlet end; 121-first water outlet end; 122-second outlet end; 13-a water passage; 14-a water inlet channel; 15-air cavity; 16-a vent hole; 17-a limiting surface;

2-a piston; 21-a pressure bearing face; 22-sealing face; 23-a boss; 231-a seal groove; 24-an assembly surface; 25-ribs; 26-water through holes;

3-a seal;

4-V-shaped ring;

5-a clamp spring;

6-an elastic member;

7-a water inlet base; 71-a flow splitting section; 72-a water inlet tank;

8-a fixing piece; 81-water inlet;

a 9-angle valve;

10-spray gun.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

With reference to fig. 1 to 7, the present embodiment provides a hydraulic control valve, which includes a valve body 1 and a piston 2 disposed in the valve body 1. Wherein, the valve body 1 has a water inlet end 11 and at least one water outlet end 12, the water inlet end 11 is used for connecting with a water inlet pipe, the water outlet end 12 is used for connecting with a water outlet pipe (e.g. a hose), the water inlet end 11 is communicated with the at least one water outlet end 12 to form a water passage 13, so that the external water flow can flow in from the water inlet end 11 and flow out from the water outlet end 12. The piston 2 is arranged in the water passage 13 and is configured to move along the water passage 13 driven by the pressure of the water outlet end 12 so as to control the opening degree of the water inlet passage 14 in cooperation with the sealing member 3 arranged at the water inlet end 11. The closer the piston 2 is to the sealing element 3, the smaller the opening of the water inlet channel 14, the maximum pressure at the water outlet end 12 when the water outlet end 12 is in the closed state drives the piston 2 to move to abut against the sealing element 3 for sealing, and the corresponding water inlet channel 14 is closed. It should be noted that in the present context, the outlet end 12 is in an open or closed state, which means that the outlet tube or outlet member connected to the outlet end 12 is in an open state when water is discharged and in a closed state when water is not discharged. It will be readily appreciated that the pressure generated against the piston 2 at the outlet end 12 is greatest when the outlet end 12 is in the closed position, i.e. when no water is present in the outlet tube or outlet member connected to the outlet end 12.

In summary, in the present embodiment, when the water outlet end 12 is in the closed state, the water inlet channel 14 is closed, so as to ensure that the water outlet pipe or the water outlet component disposed at the downstream of the water inlet channel 14 is not affected by the water pressure or the water hammer impact at the upstream side of the water inlet end 11, and further avoid the problem of tube burst and the like occurring in the hose or other water outlet components connected to the water outlet end 12.

In an alternative embodiment of the present invention, based on the above-mentioned embodiments, the piston 2 has a pressure-bearing surface 21 and a sealing surface 22. The pressure-bearing surface 21 is disposed adjacent to the water outlet end 12, and when the water outlet end 12 is closed or the opening degree of the water outlet on the water outlet component is reduced, the pressure applied by the water outlet end 12 on the pressure-bearing surface 21 is increased, which correspondingly drives the piston 2 to move toward the direction close to the sealing member 3. The further the sealing surface 22 is from the seal 3, the greater the opening of the water inlet channel 14. The sealing surface 22 of the piston 2 is always in sealing engagement with the valve body 1 when the piston is in a moving or stationary state, and for example, a seal ring may be attached to the valve body 1 and may be in contact with the sealing surface 22 to seal the piston.

In another embodiment, an air chamber 15 is formed between the piston 2 and the valve body 1, and air is introduced or discharged through a vent hole 16 of the valve body 1 when the piston 2 moves. For example, the piston 2 is rod-shaped, has an end portion with a pressure receiving surface 21, and has a boss 23 extending along an outer side surface thereof, a space for the boss 23 to move is provided in the valve body 1, and an air chamber 15 is formed between the stopper surface 17 of the valve body 1 and a surface of the boss 23 opposite to the stopper surface 17. A seal groove 231 is provided along the outer surface of the boss 23, and the V-ring 4 is accommodated in the seal groove 231. One end of the air chamber 15 is sealed with the valve body 1 by the V-ring 4 on the boss 23, and the other end is sealed with the sealing surface 22 of the piston 2 by the sealing ring arranged on the valve body 1. The clamp spring 5 is arranged on the side of the water outlet end 12, and when the water outlet end 12 is in an open state, the pressure bearing surface 21 is abutted to the clamp spring 5 to limit the piston 2 to move between the clamp spring 5 and the limiting surface 17. When the piston 2 moves towards the direction close to the sealing member 3, the space in the air cavity 15 is gradually reduced, and the air is discharged from the vent hole 16; alternatively, as the piston 2 moves away from the seal 3, the space within the air chamber 15 gradually increases and gas enters through the vent hole 16. Thereby avoiding the piston 2 from being affected by the negative pressure of the gas during the movement.

Further, the piston 2 is fitted with an elastic member 6 (e.g., a spring), and the elastic member 6 is disposed in the air chamber 15. The piston 2 is provided with a mounting surface 24 facing the pressure receiving surface 21, and the elastic member 6 is disposed between the mounting surface 24 and the stopper surface 17 of the valve body 1. The piston 2 is provided with a plurality of ribs 25 at the end near the mounting surface 24 to enable the elastic member 6 to be tightly fitted with the piston 2, thereby preventing the elastic member 6 from generating noise during movement with the piston 2. In this embodiment, when the elastic force of the elastic member 6 is larger than the pressure of the water outlet end 12, the piston 2 moves away from the sealing member 3, and the opening degree of the water inlet passage 14 gradually increases. Alternatively, when the elastic force of the elastic member 6 is smaller than the pressure of the water outlet end 12, the piston 2 moves towards the direction of the sealing member 3, and the opening degree of the water inlet passage 14 gradually decreases.

On the basis of the above embodiment, in an optional embodiment of the present invention, the water inlet base 7 is configured at the water inlet end 11 side of the valve body 1, and the water inlet base 7 is in sealing fit with the valve body 1. For example, the water inlet base 7 is provided with a seal ring for sealing with the valve body 1, but not limited thereto. The sealing member 3 is mounted on the water inlet base 7, and the sealing member 3 is preferably made of rubber or silica gel. When the outlet end 12 is open, water flows from the inlet end 11 and then through the inlet base 7 from the inlet channel 14 to the outlet end 12.

Preferably, the center of the water inlet base 7 is provided with a shunt part 71, and the sealing member 3 is embedded on the shunt part 71 and pressed by the fixing member 8. For example, the water inlet base 7 is provided with a first clamping portion, the fixing member 8 is provided with a second clamping portion, and after the sealing member 3 is placed in the assembling groove of the water inlet base 7, the fixing member 8 is pressed in along the assembling direction, so that the first clamping portion and the second clamping portion are buckled and correspondingly press the sealing member 3.

Furthermore, a water inlet 81 is provided along the circumference of the fixing member 8, and the water inlet 81 can be opened along the whole circumference, half circumference, or one third circumference of the fixing member 8, preferably two symmetrical half circumferences. The water inlet groove 72 is provided along the periphery of the water inlet base 7, and the water inlet groove 72 is communicated with the water inlet 81, so that water flows into the water inlet 81 from the periphery of the water inlet base 7. For example, when the outlet end 12 is in the open position, water flows out of the inlet end 11, then from the inlet channel 72 of the inlet base 7 into the inlet 81, and then from the inlet 81 into the inlet channel 14. Wherein, the intake antrum 72 has laid a plurality ofly along the base 7 circumference equidistance of intaking to make rivers from the middle part to reposition of redundant personnel all around, thereby reduce the impact of rivers to valve body 1.

During the assembly, put into water base 7 earlier sealing member 3, then assemble mounting 8 on water base 7, put into the water passageway 13 of valve body 1 water inlet base 7 that is equipped with sealing member 3 and mounting 8 again, the inlet tube passes through the isobaric water base 7 of packing piece for water base 7 is spacing in valve body 1.

In an alternative embodiment of the present invention, on the basis of the above-mentioned embodiment, the piston 2 is provided with a water through hole 26 for communicating the water inlet channel 14 and the water outlet end 12. The water through hole 26 is formed along the axial direction of the piston 2, so that water flows through the water inlet 81, the water inlet channel 14 and the water through hole 26 in sequence to the water outlet end 12.

Another embodiment of the present invention provides a water supply system, which includes a waterway pipeline and a hydraulic control valve adaptively connected to the waterway pipeline, wherein the hydraulic control valve is the hydraulic control valve described in any of the above embodiments.

Referring to fig. 8 and 9, the water inlet end 11 of the hydraulic control valve is connected with the angle valve 9 through a water inlet pipe, and the water outlet end 12 of the hydraulic control valve is connected with a hose of the spray gun 10. The opening and closing of the spray gun 10 are controlled through a handle or a button, when the spray gun 10 is opened, the pressure bearing surface 21 of the piston 2 is abutted against the clamp spring 5, and at the moment, the water inlet channel 14 is fully opened; when the spray gun 10 is closed, the water pressure at the water outlet end 12 drives the pressure-bearing surface 21 to move the piston 2 in the direction of approaching the sealing member 3 until the water inlet passage 14 is closed. The hose is not impacted by the pressure of tap water after the water inlet passage 14 is closed, thereby improving the service life and safety of the hose.

Referring to fig. 10 and 11, the outlet end 12 has two, namely a first outlet end 121 and a second outlet end 122, and the piston 2 is disposed in the first water passage 13 formed by the first outlet end 121 and the inlet end 11. Wherein, the opening and closing of the second water outlet end 122 has no influence on the first water outlet end 121. For example, the first outlet end 121 is connected to the spray gun 10, and the second outlet end 122 is connected to the toilet bowl end, so that the toilet bowl flushing can be turned on or off without affecting the movement of the piston 2. Thereby ensuring that the hose connected to the spray gun 10 is not impacted by the water hammer when the toilet is flushed.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention.

Claims (10)

1. A hydraulic control valve comprises a valve body and a piston arranged in the valve body,

the valve body is provided with a water inlet end and a water outlet end, and the water inlet end is communicated with the water outlet end to form a water passing channel;

the piston is configured to be driven to move along the water inlet channel by the pressure of the water outlet end so as to control the opening degree of the water inlet channel by matching with a sealing piece arranged at the water inlet end; when the water outlet end is in a closed state, the piston is in abutting seal with the sealing element and is closed corresponding to the water inlet channel.

2. The hydraulic control valve of claim 1, wherein the piston has a pressure bearing surface disposed proximate the outlet end and a sealing surface configured to sealingly engage the seal and the valve body.

3. The hydraulic control valve of claim 1, wherein an air chamber is formed between the piston and the valve body, and air is introduced or discharged through a vent hole of the valve body when the piston moves.

4. The hydraulic control valve as claimed in claim 3, wherein the piston is sleeved with an elastic member disposed in the air chamber;

the piston is configured to move in a direction away from the sealing element when the elastic force of the elastic element is greater than the pressure of the water outlet end, and the opening degree of the water inlet channel is gradually increased; or when the elastic force of the elastic piece is smaller than the pressure of the water outlet end, the elastic piece moves towards the direction close to the sealing piece, and the opening degree of the water inlet channel is gradually reduced.

5. The hydraulic control valve as recited in claim 1, further comprising a water inlet base disposed on the water inlet end side, the seal being mounted on the water inlet base.

6. The hydraulic control valve as claimed in claim 5, wherein the water inlet base is provided at a center thereof with a flow dividing portion, the sealing member is embedded in the flow dividing portion and pressed by a fixing member, and a water inlet is provided along a circumferential direction of the fixing member.

7. The hydraulic control valve of claim 6, wherein a water inlet groove is formed along a peripheral side of the water inlet base, the water inlet groove being in communication with the water inlet to allow water to enter the water inlet from the peripheral side of the water inlet base.

8. The hydraulic control valve as claimed in claim 1, wherein the piston is provided with a water through hole for communicating the water inlet passage with the water outlet end.

9. The hydraulic control valve as claimed in claim 1, wherein the outlet ends are provided with two, respectively a first outlet end and a second outlet end, and the piston is disposed in a first water passage formed by the inlet end and the first outlet end.

10. A water supply system, comprising a waterway pipeline and a hydraulic control valve adapted to be connected to the waterway pipeline, wherein the hydraulic control valve is the hydraulic control valve according to any one of claims 1 to 9.

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