CN219673451U - Valve body assembly and water using equipment - Google Patents

Abstract

The utility model discloses a valve body assembly and water consumption equipment, and relates to the field of bathroom equipment. When the piston valve faces to the open water outlet, the regulating switch can be abutted with the regulating rod so as to drive the water passing part to move through the regulating rod, so that the cross-sectional area of a water passing gap between the water passing part and the water passing cavity is controlled, the speed of the piston valve for closing the water outlet can be changed, the effect of water outlet regulation is realized, and the regulating rod of the valve body assembly is not required to be arranged at the water outlet, so that the reliability of the valve body assembly is high.

Description

Valve body assembly and water using equipment

Technical Field

The utility model relates to the field of bathroom equipment, in particular to a valve body assembly and water equipment.

Background

Different requirements are made on the water yield of the valve body such as the flushing valve by different areas and users, for example, when the flushing valve is used on a urinal, the users hope to adjust the water yield when the urinal is flushed automatically, for example, the water yield is reduced on the premise of being flushed cleanly, so that the water saving resource is met. Therefore, in the related art, a flow limiting valve can be added at the water outlet of the flushing valve to control the water yield. However, in use, the water flow impacts the flow limiting valve for a long time, so that the flow limiting valve is easy to misplace or deform, and the conditions of functional failure and the like are caused.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the valve body assembly provided by the utility model can conveniently adjust the water yield, and is high in working reliability and good in stability.

The utility model also provides water equipment with the valve body assembly.

A valve body assembly according to an embodiment of the first aspect of the present utility model includes:

the shell is provided with a water inlet and a water outlet, a pressure maintaining cavity is formed in the shell, and the pressure maintaining cavity and the water outlet are arranged at intervals;

an adjusting switch connected to the housing and capable of adjusting a position in an up-down direction;

the piston valve is arranged in the shell and positioned between the pressure maintaining cavity and the water outlet, the piston valve is used for opening or sealing the water outlet, the piston valve comprises a main body, an adjusting piece and a first elastic piece, the main body is provided with a water through cavity, the water inlet is communicated with the pressure maintaining cavity through the water through cavity, the adjusting piece comprises an adjusting rod and a water passing part, the water passing part is arranged in the water through cavity, a water passing gap is formed between the water passing part and the water through cavity, the water passing part can slide along the up-down direction to adjust the cross-sectional area of the water passing gap, one end of the adjusting rod is connected with the water passing part, the other end of the adjusting rod penetrates through the water outlet end of the water through cavity, and the first elastic piece is used for elastically resetting the adjusting piece;

when the piston valve moves towards the pressure maintaining cavity, the piston valve opens the water outlet, the water inlet is communicated with the water outlet, and the adjusting rod is abutted with the adjusting switch so as to control the cross-sectional area of the water passing gap.

The valve body assembly provided by the embodiment of the utility model has at least the following beneficial effects:

the regulating switch is connected with the shell, and the regulating switch can regulate the position of the regulating switch along the up-down direction. The piston valve is installed in the shell and used for opening or closing the water outlet, the main body of the piston valve is provided with a water passing cavity, the adjusting piece comprises a water passing portion and an adjusting rod which are connected, the adjusting rod penetrates through the first water passing hole, and the water passing portion is arranged in the water passing cavity in a sliding mode along the up-down direction. The speed of closing the water outlet of the piston valve is influenced by the pressure difference between the pressure maintaining cavity and the water inlet, and the greater the pressure difference is, the faster the speed of closing the water outlet of the piston valve is; the smaller the pressure difference is, the slower the speed of the piston valve closing the water outlet is, so the closing speed of the piston valve can be controlled by adjusting the pressure difference between the pressure maintaining cavity and the water inlet, and the water yield of the water outlet is adjusted. When the piston valve moves towards the pressure maintaining cavity to open the water outlet, the regulating switch can move towards the regulating rod and is abutted against the regulating rod, so that the water passing part is driven to move through the regulating rod, and the cross-sectional area of the water passing gap is regulated. For example, when the water passing area is increased, the water supplementing speed in the pressure maintaining cavity is higher, and the water pressure increasing speed is also higher, so that the piston valve can rapidly move towards the water outlet under the pressure action of the pressure maintaining cavity, and finally the water outlet is sealed. For example, when the water passing area is reduced, the water supplementing speed in the pressure maintaining cavity is low, the water pressure increasing speed is also low, and therefore the piston valve can be closed slowly. Therefore, the water passing area between the water passing part and the water passing cavity is regulated by regulating the switch, and the speed of closing the water outlet of the piston valve can be changed, so that the effect of regulating the water yield is realized. The adjusting piece does not need to be arranged at the water outlet, and the situation that dislocation, deformation and the like occur due to flushing of water flow of the adjusting piece does not need to be worried about, so that the working stability of the valve body assembly is high, and the reliability is good.

According to some embodiments of the utility model, the side wall of the water passage cavity is provided with a water passing groove, and the width of the water passing groove is gradually reduced or gradually increased along the direction approaching to the pressure maintaining cavity.

According to some embodiments of the present utility model, a first water passing hole is formed in an end wall of the water passing cavity facing one end of the pressure maintaining cavity, the adjusting rod penetrates through the first water passing hole, an annular protrusion is formed on one side of the water passing portion facing the first water passing hole, a notch is formed in the annular protrusion, the annular protrusion can be in abutting fit with the end wall under the elastic action of the first elastic piece, the annular protrusion is arranged around the first water passing hole, the water passing cavity is communicated with the first water passing hole through the notch, and a water passing cross section area between the adjusting rod and a side wall of the first water passing hole is larger than that of the notch.

According to some embodiments of the present utility model, the housing is further provided with a water outlet channel communicated with the water outlet, the valve body assembly further comprises a valve and a pressure relief pipeline which are connected, the pressure relief pipeline is connected to the housing, the pressure relief pipeline is provided with a pressure relief channel, two ends of the pressure relief channel are respectively communicated with the pressure maintaining cavity and the water outlet channel, the valve is used for opening or closing the pressure relief channel, when the valve opens the pressure relief channel, the piston valve moves towards the pressure maintaining cavity, the water outlet is opened, and the water inlet is communicated with the water outlet channel through the water outlet; and when the valve closes the pressure release channel, the piston valve seals the water outlet.

According to some embodiments of the utility model, the housing is further provided with a water storage cavity, the piston valve further comprises a fixing seat, a supporting seat, a plug and a second elastic piece, the main body, the fixing seat and the supporting seat are sequentially connected, a water passing channel is formed between the fixing seat and the supporting seat, the plug and the second elastic piece are both arranged in the water passing channel, the plug can seal the water passing channel under the elastic action of the second elastic piece, and the plug can move under the action of water pressure, so that the water inlet, the water storage cavity, the water passing channel and the water outlet are sequentially communicated.

According to some embodiments of the utility model, the water passing channel comprises a first cavity and a second cavity which are both cylindrical, the inner diameter of the first cavity is smaller than that of the second cavity, the plug is provided with a first sealing ring, and the first sealing ring is used for being in sealing fit with the side wall of the first cavity; when the first sealing ring moves to the second cavity under the action of water pressure, the first cavity is communicated with the second cavity.

According to some embodiments of the utility model, the side wall of the second cavity is provided with a plurality of diversion trenches, and the diversion trenches are arranged at intervals along the circumferential direction of the water passing channel.

According to some embodiments of the utility model, the piston valve further comprises a gasket, a fixing seat and a supporting seat, wherein the fixing seat is connected with the supporting seat, the gasket is sleeved on the fixing seat and is positioned between the fixing seat and the supporting seat, and the gasket can be in sealing fit with the inner wall of the shell so as to seal the water outlet.

According to some embodiments of the utility model, a side of the fixing base facing the gasket and a side of the supporting base facing the gasket are respectively provided with a first locking rib, and the first locking rib is abutted against the gasket.

An embodiment of a water service device according to a second aspect of the present utility model comprises a valve body assembly as described in the above embodiments.

The water using device provided by the embodiment of the utility model has at least the following beneficial effects:

the regulating switch is connected with the shell, and the regulating switch can regulate the position of the regulating switch along the up-down direction. The piston valve is installed in the shell and used for opening or closing the water outlet, the main body of the piston valve is provided with a water passing cavity, the adjusting piece comprises a water passing portion and an adjusting rod which are connected, the adjusting rod penetrates through the first water passing hole, and the water passing portion is arranged in the water passing cavity in a sliding mode along the up-down direction. When the piston valve moves towards the pressure maintaining cavity to open the water outlet, the regulating switch can move towards the regulating rod and is abutted against the regulating rod, so that the water passing part is driven to move through the regulating rod, and the cross-sectional area of the water passing gap is regulated. For example, when the water passing area is increased, the water supplementing speed in the pressure maintaining cavity is higher, and the water pressure increasing speed is also higher, so that the piston valve can rapidly move towards the water outlet under the pressure action of the pressure maintaining cavity, and finally the water outlet is sealed. For example, when the water passing area is reduced, the water supplementing speed in the pressure maintaining cavity is low, the water pressure increasing speed is also low, and therefore the piston valve can be closed slowly. Therefore, the water passing area between the water passing part and the water passing cavity is regulated by regulating the switch, and the speed of closing the water outlet of the piston valve can be changed, so that the effect of regulating the water yield is realized. The adjusting piece does not need to be arranged at the water outlet, and the situation that dislocation, deformation and the like occur due to flushing of water flow of the adjusting piece does not need to be worried about, so that the working stability of the valve body assembly is high, and the reliability is good.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic illustration of the structure of a valve body assembly according to one embodiment of the present utility model;

FIG. 2 is an exploded view of a valve body assembly according to one embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a plug according to one embodiment of the present utility model in a first position;

FIG. 4 is a cross-sectional view of a plug according to one embodiment of the utility model in a second position;

FIG. 5 is a cross-sectional view of a piston valve opening a water outlet according to one embodiment of the present utility model;

FIG. 6 is a cross-sectional view of a piston valve according to one embodiment of the present utility model;

FIG. 7 is a side view of a piston valve according to one embodiment of the present utility model;

FIG. 8 is a cross-sectional view at A-A in FIG. 7;

FIG. 9 is a schematic view of the structure of an adjusting member according to an embodiment of the present utility model;

FIG. 10 is a schematic cross-sectional view of an adjustment seat according to one embodiment of the present utility model;

FIG. 11 is a cross-sectional view of a plug and spring according to one embodiment of the utility model;

FIG. 12 is an exploded view of a piston valve according to one embodiment of the present utility model;

FIG. 13 is an exploded view of the piston valve of FIG. 12 from another perspective;

fig. 14 is a cross-sectional view of a holder according to an embodiment of the present utility model.

Reference numerals:

a valve body assembly 1000;

a housing 100; a water inlet 110; a water storage chamber 120; a water outlet 130; a pressure maintaining chamber 140; a water outlet passage 150; an adjustment switch 160;

a piston valve 200; an adjustment seat 201; a main body 210; a water passing cavity 211; a water inlet passage 212; a second seal ring 213; a second locking rib 214; a water through hole 215; a water passage chamber 216; an end wall 2161; a first water passing hole 217; a water passing groove 218; positioning the protrusions 219; a fixing base 220; a water passing passage 221; a first cavity 2211; a second cavity 2212; a diversion trench 2213; a second water passing hole 222; the first locking rib 223; a locking groove 224; a support base 230; a third water passing hole 231; a guide rib 232; a plug 240; a first seal ring 241; a first column 242; a second column 243; a limit groove 244; a second elastic member 250; a spacer 260; a screen 270; an adjusting member 280; an adjusting lever 281; a water passing portion 282; an annular protrusion 283; notch 284; a first elastic member 290;

a pressure relief line 400; a pressure relief channel 410; and a valve 420.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 and 2, a valve body assembly 1000 according to an embodiment of the present utility model may be used in a valve body such as a flush valve, which may be used in a water appliance such as a squatting pan, urinal, etc. The valve body assembly 1000 provided by the embodiment of the utility model can conveniently adjust the water yield, and has high working reliability and good stability.

Referring to fig. 3 and 5, in the embodiment of the present utility model, a valve body assembly 1000 includes a housing 100, an adjusting switch 160, a piston valve 200, a valve 420 and a pressure release pipe 400, wherein the housing 100 is provided with a water inlet 110, a pressure maintaining chamber 140, a water outlet 130 and a water outlet channel 150, the pressure maintaining chamber 140 and the water outlet 130 are arranged at intervals, and the water outlet 130 is communicated with the water outlet channel 150. The adjusting switch 160 is rotatably connected to the housing 100, and one end of the adjusting switch 160 can enter the pressure maintaining cavity 140, and the distance that the adjusting switch 160 extends into the pressure maintaining cavity 140 can be adjusted by rotating the adjusting switch 160. The pressure release pipeline 400 is connected with the shell 100, the pressure release pipeline 400 is provided with a pressure release channel 410, two ends of the pressure release channel 410 are respectively communicated with the pressure maintaining cavity 140 and the water outlet channel 150, a valve 420 is connected with the pressure release pipeline 400, and the valve 420 is used for opening or closing the pressure release channel 410. A piston valve 200 is installed inside the housing 100 between the pressure maintaining chamber 140 and the water outlet 130, and the piston valve 200 is used to open or seal the water outlet 130.

Referring to fig. 6, 9 and 10, the piston valve 200 includes a main body 210, an adjusting member 280 and a first elastic member 290, the main body 210 includes an adjusting seat 201, the adjusting seat 201 is formed with a water passing cavity 216, and an end wall 2161 of the water passing cavity 216 near one end of the pressure maintaining cavity 140 is provided with a first water passing hole 217. The water inlet 110, the water through cavity 216, the first water through hole 217 and the pressure maintaining cavity 140 are sequentially communicated, that is, water sequentially passes through the water through cavity 216 and the first water through hole 217 from the water inlet 110 and enters the pressure maintaining cavity 140. The adjusting member 280 includes an adjusting lever 281 and a water passing portion 282, wherein one end of the adjusting lever 281 is connected to the water passing portion 282, the other end of the adjusting lever 281 is inserted through the first water passing hole 217, the water passing portion 282 is slidably disposed in the water passing cavity 216 along the up-down direction, a water passing gap is formed between the water passing portion 282 and the water passing cavity 216, and when the water passing portion 282 moves along the up-down direction, the cross-sectional area of the water passing gap between the water passing portion 282 and the water passing cavity 216 is changed. The first elastic member 290 is connected to the water passing portion 282, and the first elastic member 290 is used to elastically restore the adjusting member 280. The first elastic member 290 may be a spring, rubber having elasticity, a silicone member, or the like.

For ease of description, the valve body assembly 1000 is used in a urinal and the valve 420 is a solenoid valve. When the induction electromagnetic valve detects that the user approaches the urinal, the induction electromagnetic valve opens the pressure relief channel 410, starts automatic flushing, and automatically closes the pressure relief channel 410 after a preset time.

Wherein, the speed of opening and closing the water outlet 130 of the piston valve 200 is influenced by the pressure difference between the pressure maintaining chamber 140 and the water inlet 110, the greater the pressure difference, the faster the speed of opening or closing the water outlet 130 of the piston valve 200; the smaller the pressure difference, the slower the speed at which the piston valve 200 opens or closes the water outlet 130, so the opening or closing speed of the piston valve 200 can be controlled by adjusting the pressure difference between the pressure maintaining chamber 140 and the water inlet 110, thereby adjusting the water output of the water outlet 130.

When the induction solenoid valve closes the pressure release passage 410, the piston valve 200 seals the water outlet 130 under the action of the water pressure in the pressure maintaining chamber 140, and the adjusting switch 160 and the adjusting lever 281 are separated, so that the water passing portion 282 abuts against the end wall 2161 under the action of the elastic force of the first elastic member 290. The water in the water passage chamber 216 can still enter the pressure maintaining chamber 140 from the first water passage hole 217. Therefore, when the pressure relief channel 410 is opened by the induction solenoid valve, the water in the pressure maintaining cavity 140 can pass through the pressure relief and enter the water outlet channel 150, and finally is discharged to the urinal.

When the piston valve 200 opens the water outlet 130, the adjustment switch 160 may be rotated to bring the adjustment switch 160 into contact with the adjustment lever 281, thereby adjusting the relative position between the water passing portion 282 and the water passing chamber 216. For example, after the water passing portion 282 moves, the cross-sectional area of the water passing gap between the water passing portion 282 and the water passing cavity 216 is larger than the cross-sectional area of the water passing gap at the original position, at this time, the water supplementing speed in the pressure maintaining cavity 140 is higher, and the water pressure increasing speed is also higher, so that the piston valve 200 can rapidly move towards the water outlet 130 under the pressure action of the pressure maintaining cavity 140, and finally the water outlet 130 is sealed, so that the water yield of the water outlet 130 is reduced, and the water yield adjusting effect is realized. Or, after the water passing portion 282 moves, the cross-sectional area of the water passing gap between the water passing portion 282 and the water passing cavity 216 is smaller than that of the water passing gap at the original position, at this time, the water supplementing speed in the pressure maintaining cavity 140 is slower, and the water pressure increasing speed is also slower, so that the piston valve 200 can move towards the water outlet 130 at a slower speed under the pressure action of the pressure maintaining cavity 140, and finally the water outlet 130 is sealed, so that the water yield of the water outlet 130 can be increased.

By adopting the above scheme, the water outlet flow can be adjusted by rotating the adjusting switch 160, so that the water outlet flow can be adjusted conveniently. And the adjusting piece 280 does not need to be arranged at the water outlet 130, and the situation that dislocation, deformation and the like occur due to flushing of water flow of the adjusting piece 280 does not need to be worried about, so that the valve body assembly 1000 is high in working stability and good in reliability.

Referring to fig. 7, 8, 9 and 10, in the embodiment of the present utility model, the sidewall of the water passing cavity 216 is provided with the water passing groove 218, and the width of the water passing groove 218 gradually decreases from bottom to top, that is, from the direction close to the pressure maintaining cavity 140. It will be appreciated that the water passing portion 282 may be slidably engaged with the side wall of the water passage chamber 216 to provide a guide, and water may be introduced into the pressure maintaining chamber 140 through the water passing groove 218. For example, when the water passing portion 282 moves from top to bottom, the cross-sectional area of the water passing gap between the water passing portion 282 and the water passing chamber 216 gradually increases, the water inflow amount in the pressure maintaining chamber 140 gradually increases, and the pressure rising speed also gradually increases, so that the speed at which the piston valve 200 closes the water outlet 130 can be gradually increased, thereby gradually reducing the water outflow rate. Therefore, by adopting the scheme, the stepless adjustment of the water yield can be realized, the water yield of each urinal can be determined by stopping the water passing part 282 at a proper position through the adjusting switch 160, and the water consumption requirements of different users are met. It should be noted that, in another embodiment of the present utility model, the width of the water passing trough 218 may also be gradually increased from bottom to top, and a suitable scheme is selected according to practical situations.

Referring to fig. 8 and 10, in the embodiment of the present utility model, a plurality of water passing grooves 218 are provided, and the plurality of water passing grooves 218 are spaced apart along the circumference of the water passing chamber 216. It will be appreciated that the use of multiple water passing tanks 218 can enhance water passing efficiency. When some of the water passing grooves 218 are blocked by impurities, other water passing grooves 218 can also play a role in water passing, so that the reliability of the valve body assembly 1000 is improved.

Referring to fig. 9, in the embodiment of the present utility model, an annular protrusion 283 is provided on a side of the water passing portion 282 facing the first water passing hole 217, and the annular protrusion 283 is further provided with a notch 284. The water passing sectional area between the adjusting lever 281 and the sidewall of the first water passing hole 217 is greater than the water passing sectional area of the notch 284, so that the water outlet amount can be adjusted by changing the sectional area of the water passing gap when the water passing portion 282 moves. When the piston valve 200 seals the water outlet 130, the regulating switch 160 and the regulating lever 281 are separated, the annular protrusion 283 can be in abutting engagement with the end wall 2161 of the water passing chamber 216 under the elastic force of the first elastic member 290, and the annular protrusion 283 is disposed around the first water passing hole 217. Wherein the water passage cavity 216 is communicated with the first water passage hole 217 through the notch 284. Therefore, the water in the water passing cavity 216 enters the first water passing hole 217 through the notch 284, and then enters the pressure maintaining cavity 140 through the first water passing hole 217. Therefore, when the annular protrusion 283 abuts against the end wall 2161 of the water passage chamber 216, water in the water passage chamber 216 enters the first water passing hole 217 through the notch 284, and the water passing sectional area is minimized. When the piston valve 200 is required to open the water outlet 130, the water in the pressure maintaining cavity 140 is the slowest in supplementing speed and the pressure is reduced faster, so that the piston valve 200 can rapidly open the water outlet 130, and the requirement of flushing at the first time when the piston valve is used by a user is met.

In cold environment, water in a water storage cavity of a valve body such as a flushing valve is easy to freeze, and when the water freezes, the volume of the water expands, so that the shell can be cracked. In the related art, the risk of cracking can be reduced by increasing the strength of the outer shell, such as increasing the wall thickness of the outer shell and adding reinforcing ribs, but the effect is limited and the risk of cracking is still high. In another scheme, an expansion cavity can be arranged in the flushing valve, and after water freezes, the spring in the expansion cavity is pushed to compress and deform, so that the storage volume in the flushing valve is increased. By adopting the scheme of the capacity expansion cavity, the larger the water storage cavity is, the larger the space required by the capacity expansion cavity is, which is influenced by the size of the water storage cavity. This results in an increased size of the flush valve, which increases the production costs and the manufacturing difficulties.

In order to solve the above ice cracking problem, referring to fig. 3 and 4, in the embodiment of the present utility model, the piston valve 200 further includes a fixing seat 220, a supporting seat 230, a stopper 240, and a second elastic member 250. The main body 210 is connected with the fixing seat 220, a water passing cavity 211 is formed between the main body 210 and the fixing seat 220, and the water storage cavity 120 is communicated with the water passing cavity 211. The fixing base 220 is connected with the supporting base 230, a water passing channel 221 is arranged between the fixing base 220 and the supporting base 230, a second water passing hole 222 is arranged at one end, facing the main body 210, of the fixing base 220, a third water passing hole 231 is arranged at one end, facing away from the fixing base 220, of the supporting base 230, and the water passing cavity 211 can be communicated with the water outlet 130 through the second water passing hole 222, the water passing channel 221, the third water passing hole 231 and the water outlet 130 in sequence. Wherein, the plug 240 and the second elastic member 250 are both disposed in the water passage 221. For example, the second elastic member 250 may be a spring, rubber having elasticity, silicone, or the like. The plug 240 can seal the water channel 221 under the elastic force of the second elastic member 250, and the plug 240 can move in a direction away from the second water passing hole 222, so that the water storage cavity 120, the second water passing hole 222, the water channel 221 and the water outlet 130 are sequentially communicated.

For example, the stopper 240 has a first position and a second position, and the switching of the stopper 240 between the first position and the second position may be achieved by the elastic force of the second elastic member 250 and the pressure of water. In normal use of the valve body assembly 1000, i.e., without freezing of water in the water storage chamber 120, the stopper 240 is moved to a first position, such as the position shown in fig. 3, by the elastic force of the second elastic member 250, and the dashed arrow indicates the flow direction of water. And the plug 240 can seal the second water passing hole 222 so that water cannot enter the water outlet 130 through the water passing channel 221. And the pressure of the water is insufficient and overcomes the elastic force of the second elastic member 250 when the water is not frozen, so that the stopper 240 can maintain a state of sealing the water passage 221. When the air temperature is reduced, the water in the water storage chamber 120 is frozen, which causes the water pressure in the water storage chamber 120 to increase, and the pressure is greater than that in normal use, so that the stopper 240 can be moved to a second position, such as the position shown in fig. 4, in which the dotted arrow indicates the flow direction of the water, against the elastic force of the second elastic member 250. At this time, the water passing cavity 211 is sequentially communicated with the water outlet 130 through the second water passing hole 222, the water passing channel 221, the third water passing hole 231, so that a part of water in the water storage cavity 120 is discharged through the water outlet 130.

By adopting the scheme, after a part of water is discharged, the expansion cracking risk caused by water ice formation can be effectively reduced, the valve body assembly 1000 is not influenced by the size of the water storage cavity 120, the structure of the piston valve 200 does not need to be redesigned according to the size of the water storage cavity 120, the universality of the valve body assembly 1000 is improved, and therefore the production cost and the manufacturing difficulty are reduced.

Referring to fig. 3, in the embodiment of the present utility model, when the plug 240 is in the first position, the upper end surface of the plug 240 can block the second water through hole 222. For example, the upper end surface of the plug 240 may be provided with a rubber member, which may have a tapered structure, and the rubber member is inserted into the second water passing hole 222 and is in sealing engagement with a sidewall of the second water passing hole 222, thereby sealing the second water passing hole 222. Or, the rubber member on the upper end surface of the plug 240 abuts against the upper end surface of the water passing channel 221, so as to seal the second water passing hole 222, and a proper scheme is specifically selected according to practical situations.

Referring to fig. 6 and 11, in the embodiment of the present utility model, the water passage 221 includes a first cavity 2211 and a second cavity 2212, each of which is cylindrical, the first cavity 2211 is located above the second cavity 2212, the first cavity 2211 is communicated with the second water passing hole 222, the second cavity 2212 is communicated with the third water passing hole 231, and the inner diameter of the first cavity 2211 is smaller than the inner diameter of the second cavity 2212. The plug 240 comprises a first sealing ring 241, a first cylinder 242 and a second cylinder 243, wherein the first cylinder 242 is connected to the upper end of the second cylinder 243, the diameter of the first cylinder 242 is smaller than that of the second cylinder 243, and the first sealing ring 241 is sleeved on the first cylinder 242. When the plug 240 is located at the first position, the first cylinder 242 is located in the first cavity 2211, and the first sealing ring 241 is in sealing fit with a side wall of the first cavity 2211. When the plug 240 is at the second position, the first sealing ring 241 is located in the second cavity 2212, so that the first cavity 2211 is communicated with the second cavity 2212, and therefore water can enter the second cavity 2212 through the first cavity 2211 and finally be discharged from the water outlet 130. By adopting the scheme, the plug 240 can plug or open the water channel 221 in a narrow space, so that the stroke required by the plug 240 is shorter, the volume of the piston valve 200 is smaller, and the structure is compact.

Referring to fig. 14, in the embodiment of the utility model, a side wall of the second cavity 2212 is provided with a diversion trench 2213, and the diversion trench 2213 is arranged along the up-down direction. After the water passes through the first cavity 2211, the water can flow to the water outlet 130 along the diversion trench 2213, so as to improve the water yield. Wherein, the flow guiding groove 2213 is provided with a plurality of, for example, four flow guiding grooves 2213 are arranged along the circumferential direction of the second cavity 2212 at intervals. By arranging the plurality of diversion trenches 2213, the water yield is further increased, and the risk of expansion cracking of the valve body assembly 1000 is effectively reduced.

Referring to fig. 11, in the embodiment of the present utility model, a limiting groove 244 is disposed at an end of the plug 240 facing the supporting seat 230, one end of the second elastic member 250 is installed in the limiting groove 244, and the other end of the second elastic member 250 is connected to the inner wall of the supporting seat 230, for example, may be in abutting contact. The limiting groove 244 is used for limiting the position of the second elastic member 250, so as to avoid the dislocation, the offset, and the like of the second elastic member 250, thereby improving the reliability of the piston valve 200 and reducing the failure rate. It should be noted that, in another embodiment of the present utility model, when the second elastic member 250 is a spring, a protruding column may be disposed at an end of the plug 240 facing the supporting seat 230, and the spring is sleeved on the protruding column, so that the position of the spring can be limited, and a suitable scheme can be selected according to practical situations.

Referring to fig. 5 and 6, in the embodiment of the present utility model, the housing 100 is further provided with a pressure maintaining chamber 140 and a water outlet channel 150, the pressure maintaining chamber 140 is located at one end of the piston valve 200 facing away from the water outlet 130, and the water outlet channel 150 is disposed below the piston valve 200 and is in communication with the water outlet 130. The main body 210 is provided with a water inlet channel 212, and the water storage cavity 120 is communicated with the pressure maintaining cavity 140 through the water inlet channel 212, so that water in the water storage cavity 120 can enter the pressure maintaining cavity 140 through the water inlet channel 212. The valve body assembly 1000 further comprises a pressure relief pipeline 400 and a valve 420, the pressure relief pipeline 400 is connected with the housing 100, the pressure relief pipeline 400 is provided with a pressure relief channel 410, two ends of the pressure relief channel 410 are respectively communicated with the pressure maintaining cavity 140 and the water outlet channel 150, so that water can enter the pressure relief channel 410 from the pressure maintaining cavity 140, and enter the water outlet channel 150 from the pressure relief channel 410. A valve 420 is connected to the pressure relief line 400, the valve 420 being used to control the opening and closing of the pressure relief channel 410.

When the valve body assembly 1000 is normally used, for example, as a flushing valve, the valve 420 may be an induction solenoid valve, and the pressure release passage 410 is opened when a person is detected, at this time, water in the pressure maintaining chamber 140 is discharged to the water outlet passage 150 through the pressure release passage 410, so that the water pressure in the pressure maintaining chamber 140 is reduced, and thus the piston valve 200 moves toward the pressure maintaining chamber 140, and further, the water outlet 130 originally sealed by the piston valve 200 is opened, for example, to a position shown in fig. 5, in which a dotted arrow indicates a flow direction of the water. At this time, the water in the water storage cavity 120 can be directly discharged through the water outlet 130, so that the water yield is large, and the urinal can be conveniently flushed. After a period of time, the solenoid valve automatically closes the pressure relief passage 410, so that the pressure in the pressure maintaining chamber 140 gradually increases, and the piston valve 200 descends to reseal the water outlet 130. By adopting the scheme, the piston valve 200 is simple and convenient to switch, and the problem of cross infection is reduced without manually touching the switch by a user.

Referring to fig. 6, in the embodiment of the present utility model, a second sealing ring 213 is disposed on a side wall of the main body 210, the second sealing ring 213 is disposed around a circumference of the main body 210, and the second sealing ring 213 is in sealing engagement with a side wall of the pressure maintaining chamber 140, so as to reduce water in the pressure maintaining chamber 140 from seeping along a gap between the piston valve 200 and the pressure maintaining chamber 140.

With continued reference to fig. 6, in an embodiment of the present utility model, the piston valve 200 further includes an annular gasket 260, the gasket 260 is sleeved on the fixed seat 220, and the gasket 260 is located between the fixed seat 220 and the supporting seat 230. The gasket 260 may be made of silica gel, rubber, or the like, and the gasket 260 is used for abutting against a step inside the housing 100, thereby closing the water outlet 130. When the piston valve 200 moves upward, the gasket 260 is separated from the step to open the water outlet 130, allowing water to enter the water outlet channel 150 from the water storage chamber 120 through the water outlet 130. By adopting the gasket 260, the sealing effect of the water outlet 130 can be improved, and the water leakage and seepage conditions can be reduced.

Referring to fig. 12, in the embodiment of the present utility model, a plurality of guide ribs 232 are provided on a peripheral wall of the support base 230, and the plurality of guide ribs 232 are spaced apart along the circumferential direction of the support base 230. The guide rib 232 can be abutted against the side wall of the water outlet channel 150, so as to limit the position of the support base 230, and avoid the deflection, dislocation, etc. of the support base 230.

Referring to fig. 12 and 13, in the embodiment of the present utility model, the fixing base 220 and the supporting base 230 are fixed by screw connection. Therefore, the side of the fixing base 220 facing the gasket 260 and the side of the supporting base 230 facing the gasket 260 are respectively provided with the first locking ribs 223, and the first locking ribs 223 are abutted against the gasket 260, so that the relative rotation of the fixing base 220 and the supporting base 230 is limited, the loosening risk of the supporting base 230 and the fixing base 220 is reduced, and the reliability of the valve body assembly 1000 is improved. In another embodiment of the present utility model, a plurality of first locking ribs 223 may be disposed on each of the fixing base 220 and the supporting base 230. Taking the fixing base 220 as an example, the plurality of first locking ribs 223 are radially distributed on the end surface of the fixing base 220, so that the friction force between the fixing base 220 and the gasket 260 can be further increased, and the relative rotation between the fixing base 220 and the supporting base 230 is effectively limited. In another embodiment of the present utility model, the plurality of first locking ribs 223 may be connected to form a mesh structure, and a suitable scheme is selected according to practical situations.

With continued reference to fig. 12 and 13, in an embodiment of the present utility model, the body 210 and the holder 220 may be fastened by a threaded connection. The main part 210 is equipped with second locking rib 214 towards one side of fixing base 220, and fixing base 220 is equipped with locking recess 224 towards one side of main part 210, and when main part 210 and fixing base 220 connect, second locking rib 214 and locking recess 224 joint to restrict the relative rotation between main part 210 and the fixing base 220, can reduce the pine risk between main part 210 and the fixing base 220. In another embodiment of the present utility model, the main body 210 may be provided with two second locking ribs 214, where the two second locking ribs 214 are disposed opposite to each other, and the locking slots of the fixing base 220 are also provided with two locking slots, and the positions of the locking slots correspond to the positions of the second locking ribs 214. The stability of the connection of the body 210 and the holder 220 can be further increased. It should be noted that, in another embodiment of the present utility model, the side of the main body 210 facing the fixing seat 220 may also be provided with the anti-loosening groove 224, while the side of the fixing seat 220 facing the main body 210 is provided with the second anti-loosening rib 214, and the present utility model is not limited thereto.

Referring to fig. 6 and 12, in the embodiment of the present utility model, the sidewall of the main body 210 is provided with water through holes 215, one or more, for example, four, water through holes 215 may be provided, and the water storage chambers 120 may communicate with the water passing chamber 211 through the water through holes 215. The piston valve 200 further includes a filter screen 270, the filter screen 270 being disposed around the water outlet structure and covering the water through holes 215. The filter screen 270 is used for filtering impurities in the water, so as to reduce the situation that the impurities block the water outlet 130.

The water usage device according to an embodiment of the present utility model includes the valve body assembly 1000 of the above embodiment. The water-consuming device may be a toilet, urinal, etc. The water using apparatus according to the embodiment of the present utility model adopts the valve body assembly 1000 of the above embodiment, the adjusting switch 160 of the valve body assembly 1000 is connected to the housing 100, and the adjusting switch 160 can adjust its own position in the up-down direction. The piston valve 200 is installed inside the housing 100 and is used for opening or closing the water outlet 130, the main body 210 of the piston valve 200 is provided with a water passing cavity 216, the adjusting member 280 comprises a water passing portion 282 and an adjusting lever 281 which are connected, the adjusting lever 281 is arranged through the first water passing hole 217, and the water passing portion 282 is arranged in the water passing cavity 216 in a sliding manner along the up-down direction. When the piston valve 200 moves toward the pressure maintaining chamber 140 to open the water outlet 130, the adjusting switch 160 can move toward the adjusting lever 281 and abut against the adjusting lever 281 to drive the water passing portion 282 to move through the adjusting lever 281 to adjust the cross-sectional area of the water passing gap. For example, when the water passing area is increased, the water supplementing speed in the pressure maintaining cavity 140 is higher, and the water pressure increasing speed is also higher, so that the piston valve 200 can rapidly move towards the water outlet 130 under the pressure action of the pressure maintaining cavity 140, and finally the water outlet 130 is sealed. For example, when the water flow area is reduced, the water replenishment rate in the pressure maintaining chamber 140 is low, and the water pressure is also low, so that the piston valve 200 can be closed slowly. Therefore, the water passing area between the water passing portion 282 and the water passing chamber 216 is adjusted by adjusting the switch 160, so that the speed at which the piston valve 200 closes the water outlet 130 can be changed, thereby realizing the water output adjustment function. The adjusting member 280 does not need to be arranged at the water outlet 130, and the condition that the adjusting member 280 is dislocated, deformed and the like caused by flushing of water flow is not needed to be worried about, so that the valve body assembly 1000 has high working stability and good reliability.

Because the water using apparatus adopts all the technical solutions of the valve body assembly 1000 in the foregoing embodiments, at least the water using apparatus has all the beneficial effects brought by the technical solutions in the foregoing embodiments, and will not be described herein again.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. Valve body subassembly, its characterized in that includes:

the shell is provided with a water inlet and a water outlet, a pressure maintaining cavity is formed in the shell, and the pressure maintaining cavity and the water outlet are arranged at intervals;

an adjusting switch connected to the housing and capable of adjusting a position in an up-down direction;

the piston valve is arranged in the shell and positioned between the pressure maintaining cavity and the water outlet, the piston valve is used for opening or sealing the water outlet, the piston valve comprises a main body, an adjusting piece and a first elastic piece, the main body is provided with a water through cavity, the water inlet is communicated with the pressure maintaining cavity through the water through cavity, the adjusting piece comprises an adjusting rod and a water passing part, the water passing part is arranged in the water through cavity, a water passing gap is formed between the water passing part and the water through cavity, the water passing part can slide along the up-down direction to adjust the cross-sectional area of the water passing gap, one end of the adjusting rod is connected with the water passing part, the other end of the adjusting rod penetrates through the water outlet end of the water through cavity, and the first elastic piece is used for elastically resetting the adjusting piece;

when the piston valve moves towards the pressure maintaining cavity, the piston valve opens the water outlet, the water inlet is communicated with the water outlet, and the adjusting rod is abutted with the adjusting switch so as to control the cross-sectional area of the water passing gap.

2. The valve body assembly according to claim 1, wherein a water passing groove is formed in a side wall of the water passing cavity, and the width of the water passing groove is gradually reduced or gradually increased in a direction approaching the pressure maintaining cavity.

3. The valve body assembly according to claim 1, wherein the end wall of the water passing cavity facing one end of the pressure maintaining cavity is provided with a first water passing hole, the adjusting rod penetrates through the first water passing hole, one side of the water passing part facing the first water passing hole is provided with an annular bulge, the annular bulge is provided with a notch, the annular bulge can be in butt fit with the end wall under the elastic action of the first elastic piece and is arranged around the first water passing hole, the water passing cavity is communicated with the first water passing hole through the notch, and the water passing cross section area between the adjusting rod and the side wall of the first water passing hole is larger than that of the notch.

4. The valve body assembly according to claim 1, wherein the housing is further provided with a water outlet channel communicated with the water outlet, the valve body assembly further comprises a valve and a pressure relief pipeline which are connected, the pressure relief pipeline is connected to the housing, the pressure relief pipeline is provided with a pressure relief channel, two ends of the pressure relief channel are respectively communicated with the pressure maintaining cavity and the water outlet channel, the valve is used for opening or closing the pressure relief channel, when the valve opens the pressure relief channel, the piston valve moves towards the pressure maintaining cavity, the water outlet is opened, and the water inlet is communicated with the water outlet channel through the water outlet; and when the valve closes the pressure release channel, the piston valve seals the water outlet.

5. The valve body assembly according to claim 1, wherein the housing is further provided with a water storage cavity, the piston valve further comprises a fixing seat, a supporting seat, a plug and a second elastic member, the main body, the fixing seat and the supporting seat are sequentially connected, a water passing channel is formed between the fixing seat and the supporting seat, the plug and the second elastic member are both arranged in the water passing channel, the plug can seal the water passing channel under the action of the elastic force of the second elastic member, and the plug can move under the action of water pressure so that the water inlet, the water storage cavity, the water passing channel and the water outlet are sequentially communicated.

6. The valve body assembly of claim 5, wherein the water passage comprises a first cavity and a second cavity which are both cylindrical, the inner diameter of the first cavity is smaller than the inner diameter of the second cavity, the plug is provided with a first sealing ring, and the first sealing ring is used for sealing fit with the side wall of the first cavity; when the first sealing ring moves to the second cavity under the action of water pressure, the first cavity is communicated with the second cavity.

7. The valve body assembly of claim 6, wherein the sidewall of the second cavity is provided with a plurality of flow guide grooves, the plurality of flow guide grooves being disposed at intervals along the circumferential direction of the water passage.

8. The valve body assembly of claim 1, wherein the piston valve further comprises a gasket, a fixed seat and a supporting seat, the fixed seat is connected with the supporting seat, the gasket is sleeved on the fixed seat and is located between the fixed seat and the supporting seat, and the gasket can be in sealing fit with the inner wall of the shell so as to seal the water outlet.

9. The valve body assembly of claim 8, wherein a side of the fixed seat facing the gasket and a side of the support seat facing the gasket are each provided with a first locking rib, and the first locking rib abuts against the gasket.

10. Water-consuming device, characterized in that it comprises a valve body assembly according to any one of claims 1 to 9.