CN218236239U - Temp. regulating delay valve - Google Patents

Abstract

A temperature-regulating time-delay valve comprises a valve casing provided with a first water inlet, a second water inlet and a water outlet, wherein a piston cavity is arranged in the valve casing, and a valve port communicated with the water outlet is arranged in the piston cavity; the water mixing valve rod component can be rotatablely penetrated at the upper end of the valve shell around the axis of the water mixing valve rod component; the water mixing valve assembly and the water mixing valve rod assembly form a water mixing cavity communicated with the valve port, and the water mixing valve rod assembly is controlled to act so as to conduct the water mixing cavity and the first water inlet and/or the second water inlet; the piston assembly is slidably arranged in the piston cavity to open or close the valve port, the piston assembly and the piston cavity jointly define a water storage cavity, and the water volume in the water storage cavity can be reduced when the valve port is opened and increased when the valve port is closed; the switch operating rod is axially movably arranged in the valve shell, the upper end of the switch operating rod penetrates out of the valve shell, the lower end of the switch operating rod is inserted into the piston cavity, and the switch operating rod axially moves downwards to drive the piston assembly to axially move downwards; the first elastic piece enables the piston assembly to always have the tendency of moving upwards in the axial direction.

Description

Temp. -regulating delay valve

Technical Field

The utility model relates to a case specifically is a time delay valve adjusts temperature.

Background

The valve core is a valve part which realizes direction control, pressure control or flow control through the movement or rotation of a valve rod arranged in the valve body, and is widely used in a faucet. The valve core can be divided into three categories according to functions, wherein the first category is a switch valve core which is mainly used for realizing the opening and closing of a single water channel; the second type is a water mixing valve core which is used for controlling the water inlet flow of a cold water waterway and a hot water waterway so as to adjust the water temperature of mixed water; the third type is a water diversion valve core which is used for controlling the water flow direction and a water outlet channel for distributing the water flow. The time-delay valve core is one of the switch valve cores, has the characteristic of time-delay self-closing, can effectively save water, is not easy to produce cross contamination when being applied to a water tap, and is widely applied to public places such as a tap of a public toilet, a hotel or a station.

The mechanical type time delay self-closing water tap that uses at present adopts water or gas as damping medium mostly, utilizes fixed slot or aperture to form the passageway with time delay storage chamber intercommunication, through moving the valve rod, and drive the piston and remove, makes the fluid in the time delay storage chamber discharge fast, after the pressing effect that is exerted on the valve rod disappears, under the effect of spring and the water that is inhaled the time delay storage chamber through the passageway, the valve rod slowly moves and resets in order to close the valve port. However, the function of the time delay valve core is single, and the water temperature cannot be adjusted, so that the use is not convenient, especially in cold winter.

In order to solve the problems, a Chinese utility model patent with a patent number ZL201922044045.X (with an authorization publication number CN 211288855U) discloses a multifunctional time-delay valve core, which comprises a shell and a base; it is characterized in that a switch time delay component and a mediation component are arranged in the shell; the adjusting component comprises a still water valve plate and a moving water valve plate; the switch time-delay assembly is connected with the adjusting assembly through a clamping position to drive the moving water valve plate to rotate relative to the static water valve plate, so that the communicated water passing proportion of the first water passing hole, the second water passing hole and the third water passing hole is controlled; the static water valve plate is arranged on the fixed seat, and the shell is in relative static clamping connection with the fixed seat; the switch time-delay assembly comprises a valve body, a moving piece, a piston, a deformable sealing piece, a spring and hydraulic solution; the piston is fixed on the moving member, and the deformable sealing member is fixed in the piston groove.

Above-mentioned multi-functional time delay case is through mixing water valve piece subassembly and switch time delay subassembly integration, makes multi-functional time delay case have time delay case and water valve core's function concurrently, makes multi-functional time delay case convenient more that uses. However, because the valve body and the water mixing cavity of the switch delay assembly are mutually independent and isolated, the valve core needs to be additionally filled with hydraulic solution as a damping medium in the valve body of the switch delay assembly, the valve core is more complicated to process, the processed valve core is heavier, the packaging and transportation cost of the valve core is increased, and the delay function of the valve core is failed once the hydraulic solution in the valve body is lost due to leakage of the hydraulic solution. In addition, the piston cavity and the water mixing cavity in the valve core are distributed along the axial direction, so that the valve core is not compact in structure, and the valve core is large in size.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem that a processing is simpler, the quality is lighter, and the time delay function is difficult to the time delay valve that adjusts the temperature that became invalid is provided to foretell technical situation.

The second technical problem to be solved in the present invention is to provide a temperature-adjusting delay valve with a more compact structure and a smaller volume.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a temperature-adjusting time-delay valve, which comprises

The piston cavity is arranged in the valve shell, and a first water inlet, a second water inlet and a water outlet are formed in the valve shell;

the water mixing valve rod assembly is rotatably arranged in the valve shell around the axis of the water mixing valve rod assembly, and the upper end of the water mixing valve rod assembly extends upwards to the outside of the valve shell;

the water mixing valve assembly is connected to the lower part of the water mixing valve rod assembly, a water mixing cavity is defined by the water mixing valve assembly and/or the water mixing valve rod assembly, and the water mixing valve assembly is controlled by the water mixing valve rod assembly to act so as to conduct the water mixing cavity and the first water inlet and/or the second water inlet;

the method is characterized in that: a valve port communicated with the water mixing cavity and the water outlet is arranged in the piston cavity, and the piston further comprises

The piston assembly and the piston cavity jointly define a water storage cavity at least partially positioned below the piston assembly, the water storage cavity can be communicated with the water outlet to reduce the water amount in the water storage cavity in the process that the piston assembly moves axially downwards to open the valve port, and the water storage cavity can be communicated with the water mixing cavity to increase the water amount in the water storage cavity in the process that the piston assembly moves axially upwards to close the valve port;

the switch operating rod is axially movably arranged in the valve shell, the upper end of the switch operating rod extends upwards to the outside of the valve shell, the lower end of the switch operating rod extends downwards to the piston cavity, and the axial downward movement of the switch operating rod can drive the piston assembly to move downwards along the axial direction;

the first elastic piece enables the piston assembly to always have the tendency of moving upwards along the axial direction.

The valve port is opened or closed through the axial movement of the piston assembly, and the piston assembly is in the moving process of opening or closing the valve port, so that the water storage cavity can be communicated with the water mixing cavity or the water outlet, the water quantity in the water storage cavity is increased or reduced, the water in the water mixing cavity can be directly filled into the water storage cavity as a damping medium, a processing procedure of filling hydraulic solution is not required to be independently arranged in the production process of the valve core, the processing of the valve core is simplified, the quality of the processed valve core is lighter, the valve core is convenient to package and transport, the packaging and transportation cost of the valve core is saved, in addition, the water in the water mixing cavity can be periodically supplemented into the water storage cavity, and the condition that the water shortage caused time delay function fails is not easy to occur in the water storage cavity.

In order to make the inner structure of the valve core more compact, the water mixing valve rod component is hollow and sleeved outside the switch operating rod, and the piston cavity is arranged inside the water mixing valve rod component and is partially positioned below the switch operating rod.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: the water mixing cavity is at least partially arranged on the periphery of the piston cavity.

In order to make the structure of the mixing valve rod assembly simpler, the mixing valve rod assembly comprises

The water mixing valve rod can be rotatably arranged at the upper end of the valve shell in a penetrating way around the axis of the water mixing valve rod, and the upper end of the switch operating rod penetrates out of the water mixing valve rod;

the first core shell is fixedly connected with the lower part of the water mixing valve rod, and at least a partial piston cavity is arranged in the first core shell;

the second core shell is positioned on the periphery of the first core shell and fixedly connected with the first core shell, the lower end of the second core shell is connected with the water mixing valve piece assembly, and the water mixing cavity is defined by the second core shell, the water mixing valve piece assembly and the first core shell together.

In order to make muddy water valve block subassembly structure simpler, mix water valve block subassembly include with valve casing fixed connection's fixed valve block with stack in the top of fixed valve block, and with second core casing fixed connection's movable valve block, be equipped with on the fixed valve block with the first mouth of a river of crossing of first water inlet intercommunication and cross the mouth of a river with the second of second water inlet intercommunication, be equipped with on the movable valve block with the first opening of communicating of muddy water chamber intercommunication, just the rotation of mixing water valve block can drive the movable valve block rotates around self axis, thereby makes first opening with first mouth of a river and/or the second of crossing water mouth intercommunication.

In order to facilitate the valve port to communicate the water mixing cavity and the water outlet, a second communication port is arranged on the peripheral wall of the first core shell, and the valve port is communicated with the water mixing cavity through the second communication port; and a third communication port is arranged on the peripheral wall of the water mixing valve rod, and the valve port is communicated with the water outlet through the third communication port.

In order to facilitate sealing of the piston cavity, the water mixing valve rod and the first core shell jointly form a first inner cavity, a sealing ring assembly is arranged in the first inner cavity, the first inner cavity is divided into a second inner cavity and the piston cavity by the sealing ring assembly, and the switch operating rod penetrates through a center hole of the sealing ring assembly.

In order to reasonably set the water inlet rate and the water discharge rate of the water storage cavity, the piston assembly is provided with a through-flow hole and a valve hole which are communicated with the water storage cavity, in the process that the piston assembly moves downwards in the axial direction to open the valve port, the valve hole can be communicated with the water outlet so that water in the water storage cavity can flow to the water outlet through the valve hole, in the process that the piston assembly moves upwards in the axial direction to close the valve port, the through-flow hole can be communicated with the water mixing cavity so that water in the water mixing cavity can flow to the water storage cavity through the through-flow hole, the through-flow sectional area of the valve hole is larger than the sectional area of the through-flow hole, so that water in the water storage cavity is rapidly discharged in the process that the valve port is opened by the piston assembly, the water pressure in the water storage cavity is reduced, the upward reaction force of the switch operating rod when the piston assembly moves downwards in the axial direction can be smaller, and further the user can save more labor when the switch operating rod moves downwards in the axial direction, in the process that the through-flow hole of the piston assembly closes the water storage cavity, the water pressure can be slowly increased, the water pressure in the piston assembly can be moved upwards so as to reset, and the valve core can be automatically closed, so as to prolong the time of the valve core.

In a further development, the piston arrangement comprises

The piston body is in sliding fit with the piston cavity, the valve hole axially penetrates through the piston body, and the overflowing hole is axially formed in the lower part of the piston body;

the blocking piece is arranged on the piston body and is used for opening or closing the valve port, and the blocking piece is positioned between the upper end of the valve hole and the upper end of the overflowing hole;

the valve rod is axially movably arranged in the valve hole, the valve hole can be opened or closed, and the first elastic piece acts on the valve rod, so that the valve rod always has the tendency of moving upwards relative to the piston body along the axial direction;

and a second elastic piece is arranged in the valve shell, the switch operating rod always has a trend of moving upwards along the axial direction, and the valve rod can be driven to move downwards relative to the piston body by the axial downward movement of the switch operating rod so as to open the valve hole.

Move down through the axial of switch action bars and order about the valve rod axial and move down to open the valve opening, rather than with switch action bars and piston assembly fixed connection, not only can shorten the length of switch action bars, thereby can be convenient for process switch action bars, still be convenient for process piston assembly.

In order to avoid the blockage of the overflowing hole, the first elastic piece is a spring and is provided with a bent section and a straight section, the bent section acts on the valve rod, the straight section is inserted into the overflowing hole, an overflowing gap is formed between the peripheral wall of the straight section and the hole wall of the overflowing hole, and therefore the size of the overflowing gap can be adjusted by adjusting the diameter of the straight section, and the time delay of the valve core is adjusted.

In order to facilitate the valve core to stop water automatically when the valve core is detached, the first water inlet and the second water inlet are both arranged at the bottom of the valve shell, and check valve assemblies are arranged at the first water inlet and the second water inlet; the water outlet is arranged on the peripheral wall of the valve shell.

Compared with the prior art, the utility model has the advantages of: the valve port is opened or closed through the axial movement of the piston assembly, and the piston assembly enables the water storage cavity to be communicated with the water mixing cavity or the water outlet in the moving process of opening or closing the valve port, so that the water quantity in the water storage cavity is increased or reduced, and the water in the water mixing cavity can be directly filled into the water storage cavity as a damping medium, so that the processing procedure of filling hydraulic solution is not required to be independently arranged in the production process of the valve core, the processing of the valve core is simplified, the processed valve core is lighter in weight, the valve core is convenient to package and transport, the packaging and transportation cost of the valve core is saved, in addition, the water in the water mixing cavity can be periodically supplemented into the water storage cavity, and the condition that the time delay function caused by water shortage is not easy to occur in the water storage cavity.

Drawings

Fig. 1 is a first perspective view of an embodiment of the present invention;

FIG. 2 is a second perspective view of the embodiment of the present invention;

fig. 3 is an exploded perspective view of an embodiment of the present invention;

FIG. 4 is a cross-sectional view of an embodiment of the present invention (with both the valve port and the valve opening closed);

FIG. 5 is a sectional view of an embodiment of the present invention (with the valve port closed and the valve hole open);

FIG. 6 is a cross-sectional view of an embodiment of the present invention (with both the valve port and the valve opening open);

fig. 7 is a sectional view of the embodiment of the present invention (in a state where the valve port is opened and the valve hole is closed);

fig. 8 is a schematic structural view of a water mixing valve plate assembly according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 8, the preferred embodiment of the present invention is shown.

The temperature-adjusting time-delay valve in the embodiment comprises main parts such as a valve housing 1 (see fig. 1 and 2), a water mixing valve rod assembly 2 (see fig. 4), a water mixing valve rod assembly 3 (see fig. 6), a switch operating rod 4 (see fig. 1 and 2), a piston assembly 5 (see fig. 7), a first elastic member 61 (see fig. 7), a second elastic member 62 (see fig. 4), a sealing ring assembly 7 (see fig. 5) and a one-way valve assembly 8 (see fig. 1 and 3).

The valve housing 1 includes an upper housing 11 and a lower housing 12 which are engaged with each other, thereby facilitating the assembly of the valve cartridge. The peripheral wall of the upper housing 11 is provided with a plurality of water outlets 111 along the circumferential direction (see fig. 1 and 2). The bottom of the lower shell 12 is circumferentially provided with a first water inlet 121 and a second water inlet 122, and the first water inlet 121 and the second water inlet 122 are both provided with a check valve assembly 8 (see fig. 1 and 4).

The mixing valve rod assembly 2 is hollow inside and includes a mixing operation valve rod 21, a first core case 22 and a second core case 23. The mixing operation valve rod 21 is rotatably inserted through the upper end of the upper housing 11 about its axis (see fig. 4). The first core shell 22 is fixedly connected with the lower portion of the mixing operation valve rod 21, and forms a first inner cavity 20 together with the mixing operation valve rod 21, the sealing ring assembly 7 is accommodated in the first inner cavity 20, and the sealing ring assembly 7 divides the first inner cavity 20 into a second inner cavity 201 and a piston cavity 202 (see fig. 5). The second core shell 23 is located at the periphery of the first core shell 22 and is fixedly connected with the first core shell 22, the lower end of the second core shell 23 is connected with the mixing valve disc assembly 3, and the second core shell 23, the mixing valve disc assembly 3 and the first core shell 22 jointly define a water mixing chamber 100 (see fig. 6).

As shown in fig. 3 and 6, the mixing valve assembly 3 includes a fixed valve plate 31 and a movable valve plate 32. The fixed valve plate 31 is clamped with the lower housing 12 and is provided with a first water passing opening 311 and a second water passing opening 312, the first water passing opening 311 is communicated with the first water inlet 121, and the second water passing opening 312 is communicated with the second water inlet 122. The movable valve plate 32 is stacked above the fixed valve plate 31 and fixedly connected with the second core shell 23; the first communication port 321 communicated with the water mixing cavity 100 is arranged on the movable valve plate 32, so that the rotation of the water mixing operation valve rod 21 around the self axis can drive the movable valve plate 32 to rotate around the self axis, and further the first communication port 321 is communicated with the first water passing port 311 and/or the second water passing port 312 (see fig. 8), so as to adjust the water temperature. It can be understood that a limiting structure is provided between the mixing valve rod assembly 2 and the upper housing 11, the limiting structure includes two first convex portions provided on the inner peripheral wall of the upper housing 11 along the circumferential direction and a second convex portion (not shown in the figure) provided on the mixing valve rod assembly 2, and the second convex portion abuts against the first convex portion to limit the rotation range of the mixing valve rod assembly 2.

A valve port 203 (see fig. 6) is arranged inside the piston cavity 202, a second communication port 221 is arranged on the peripheral wall of the first core shell 22, and the valve port 203 is communicated with the mixing cavity 100 through the second communication port 221 (see fig. 3 and 6); the mixing operation valve stem 21 is provided with a third communication port 211 in a peripheral wall thereof, and the valve port 203 communicates with the water outlet 123 through the third communication port 211 (see fig. 3 and 6). The piston assembly 5 is accommodated in the piston cavity 202 and is in sliding fit with the piston cavity 202, so that the valve port 203 can be opened or closed to realize the opening and closing functions of the valve core.

As shown in fig. 6 and 7, the piston assembly 5 includes a piston body 51, a blocking member 52, a delay valve stem assembly 53, a locking member 54, and a packing 55. The piston body 51 is slidably engaged with the piston cavity 202 and defines a water storage cavity 202 together with the piston cavity 202, and the water storage cavity 202 is at least partially located below the piston body 51. The piston body 51 has a valve hole 511 axially penetrating therethrough and communicating with the water storage chamber 102, and in the process that the piston assembly 5 moves axially downward to open the valve port 203, the valve hole 511 can communicate with the water outlet 111, so that water in the water storage chamber 102 can flow to the water outlet 111 through the valve hole 511, thereby reducing the amount of water in the water storage chamber 102. The lower portion of the piston body 51 is axially provided with a through hole 512, and during the process that the piston assembly 5 axially moves upwards to close the valve port 203, the through hole 512 can communicate with the water mixing cavity 100, so that the water in the water mixing cavity 100 can flow to the water storage cavity 202 through the through hole 512, and the water amount in the water storage cavity 202 is increased.

As shown in fig. 6 and 7, the blocking member 52 is provided on the piston body 51 between the upper end of the valve hole 511 and the upper end of the overflowing hole 512, and the piston assembly 5 opens or closes the valve port 203 through the blocking member 52. The locking member 54 is threadedly coupled to the piston body 51 for limiting the position of the blocking member 52. The time-delay stem assembly 53 is axially movably disposed in the valve hole 511 to open or close the valve hole 511. The first elastic member 61 is a spring and has a curved section 611 and a straight section 612, the curved section 611 is disposed between the first core housing 22 and the delay valve stem assembly 53, so that the delay valve stem assembly 53 always has a tendency to move upward in the axial direction relative to the piston body 51; the straight section 612 is inserted into the overflowing hole 512, and an overflowing gap is formed between the peripheral wall of the straight section 612 and the hole wall of the overflowing hole 512, so that the overflowing hole 512 can be prevented from being blocked. The sealing ring 55 is sleeved on the piston body 51 and is located between the upper end and the lower end of the overflowing hole 512, so that the upper end and the lower end of the overflowing hole 512 are isolated, and water channeling is avoided.

In the temperature-regulating time-delay valve in the embodiment, the valve port 203 is opened or closed by the axial movement of the piston assembly 5, and the piston assembly 5 enables the water storage cavity 102 to be communicated with the water mixing cavity 100 or the water outlet 123 in the movement process of opening or closing the valve port 203, so that the amount of water in the water storage cavity 102 is increased or reduced, and therefore the water in the water mixing cavity 100 can be directly filled into the water storage cavity 202 as a damping medium, a processing procedure of filling a hydraulic solution is not required to be independently arranged in the valve core production process, the processing of the valve core is simplified, the processed valve core is lighter in weight, the valve core is convenient to package and transport, the packaging and transportation costs of the valve core are saved, in addition, the water in the water mixing cavity 100 can be periodically supplemented into the water storage cavity 202, and the water storage cavity 202 is not prone to delay function failure caused by water shortage.

As shown in fig. 4 and 5, the switch operating rod 4 is axially movably inserted into the second inner cavity 201, the upper end of the switch operating rod 4 passes through the mixing operating valve rod 21, the lower end of the switch operating rod 4 is inserted into the piston cavity 202 through the central hole of the sealing ring assembly 7, the axial downward movement of the switch operating rod 4 can drive the delay valve rod assembly 53 to axially move downward relative to the piston body 51, so as to open the valve hole 511, and the axial downward movement of the switch operating rod 4 can drive the piston body 51 to axially move downward relative to the valve hole 1, so as to open or close the valve hole 203 by the blocking piece 52. The second elastic member 62 is a spring provided between the seal ring assembly 7 and the switch operating lever 4, and the second elastic member 62 keeps the switch operating lever 4 always moving upward in the axial direction.

As shown in fig. 6, the through-flow cross-sectional area of the valve hole 511 is larger than that of the through-flow hole 512, so that water in the water storage cavity 202 is quickly discharged in the process that the piston assembly 5 opens the valve port 203 to reduce the water pressure in the water storage cavity 202, and the upward reaction force on the switch operating rod 4 when the piston assembly 5 moves axially downward can be smaller, so that a user can save more labor when operating the switch operating rod 4 to move axially downward, and water slowly enters the water storage cavity 102 in the process that the piston assembly closes the valve port 203 to slowly increase the water pressure in the water storage cavity 202, so that the piston assembly 5 slowly moves axially upward to reset, and the self-closing time of the valve core is prolonged.

The working principle of the temperature-regulating time-delay valve in the embodiment is as follows:

after the valve core is installed on the water tap, when the first water inlet 121 and the second water inlet 122 are filled with water, the check valve assembly 8 is in an open state. Before use, the mixing operation valve rod 21 is rotated, so that the first core shell 22, the second core shell 23 and the movable valve plate 32 rotate along with the mixing operation valve rod 21, and the movable valve plate 32 is rotated to the first communication port 321 to be communicated with the first water passing port 311 and/or the second water passing port 312 according to requirements, so that the valve core can discharge cold water, warm water or hot water (see fig. 8). At this time, since the overflowing hole 512 communicates the water mixing chamber 100 and the water storage chamber 202, the water storage chamber 202 is filled with water. The piston assembly 5 is in a state of closing the valve port 203 (see fig. 4) under the combined action of the first elastic member 61 and the water pressure of the water storage cavity 202.

When the valve is used, the switch operating rod 4 is pressed downwards, so that the switch operating rod 4 moves downwards in the axial direction until the upper end face of the delay valve rod assembly 53 is flush with the upper end face of the piston body 51, and the valve hole 511 is opened (see fig. 5). Subsequently, the switch operating rod 4 continues to move axially downwards, and drives the piston body 51 and the delay valve rod assembly 53 to synchronously move axially downwards, so that the blocking piece 52 opens the valve port 203, the water mixing cavity 100 is communicated with the water outlet 111, and water outlet is realized; meanwhile, the water storage cavity 202 is communicated with the water outlet 111 through the valve hole 511, and in the process that the piston assembly 5 moves downwards to the position where the lower end surface of the delay valve rod assembly 53 is abutted against the inner bottom wall of the first core shell 22, the overflowing hole 512 can be blocked from the water mixing cavity 100, so that water in the water mixing cavity 100 cannot enter the water storage cavity 202, and thus the water in the water storage cavity 202 is gradually discharged (see fig. 6).

After the use is finished, the switch operating lever 4 is released, the switch operating lever 4 is reset by the second elastic member 62, and the delay valve rod assembly 53 can move up and reset relative to the piston body 51 by the first elastic member 61 after being not pressed by the switch operating lever 4, so that the valve hole 511 is closed (see fig. 7). Subsequently, the piston assembly 5 moves axially upward to close the valve port 203 under the action of the first elastic member 61 to block the water mixing chamber 100 and the water outlet 111, so as to stop water outlet, and in the process, the overflowing hole 512 can be communicated with the water mixing chamber 100, so that water in the water mixing chamber 100 can slowly enter the water storage chamber 202 through the flowing hole 512 (see fig. 4), and due to the combined action of the damping action of the water and the first elastic member 61, the piston assembly 5 moves axially slowly to reset, so as to achieve the delayed closing function of the valve core.

Claims (10)

1. A temperature-adjusting time-delay valve, which comprises

The piston type water pump comprises a valve shell (1), wherein a piston cavity (202) is formed in the valve shell (1), and a first water inlet (121), a second water inlet (122) and a water outlet (111) are formed in the valve shell (1);

the water mixing valve rod assembly (2) is rotatably arranged in the valve shell (1) around the axis of the water mixing valve rod assembly, and the upper end of the water mixing valve rod assembly extends upwards to the outside of the valve shell (1);

the water mixing valve assembly (3) is connected to the lower part of the water mixing valve rod assembly (2), the water mixing valve assembly (3) and/or the water mixing valve rod assembly (2) define a water mixing cavity (100), and the water mixing valve assembly (3) is controlled by the water mixing valve rod assembly (2) to act so as to conduct the water mixing cavity (100) and the first water inlet (121) and/or the second water inlet (122);

the method is characterized in that: a valve port (203) which is communicated with the water mixing cavity (100) and the water outlet (111) is arranged in the piston cavity (202), and the piston cavity also comprises

The piston assembly (5) is accommodated in the piston cavity (202) and is in sliding fit with the piston cavity (202) to open or close the valve port (203), the piston assembly (5) and the piston cavity (202) jointly define a water storage cavity (202) which is at least partially positioned below the piston assembly (5), the water storage cavity (202) can be communicated with the water outlet (111) to reduce the water amount in the water storage cavity (202) in the process that the piston assembly (5) moves axially downwards to open the valve port (203), and the water storage cavity (202) can be communicated with the water mixing cavity (100) to increase the water amount in the water storage cavity (202) in the process that the piston assembly (5) moves axially upwards to close the valve port (203);

the switch operating rod (4) is axially movably arranged in the valve shell (1), the upper end of the switch operating rod (4) extends upwards to the outside of the valve shell (1), the lower end of the switch operating rod extends downwards to the piston cavity (202), and the axial downward movement of the switch operating rod (4) can drive the piston assembly (5) to move downwards along the axial direction;

a first elastic member (61) which makes the piston assembly (5) always have the tendency of moving upwards along the axial direction.

2. The temperature-regulating time-delay valve of claim 1, wherein: the water mixing valve rod assembly (2) is hollow and sleeved outside the switch operating rod (4), and the piston cavity (202) is arranged inside the water mixing valve rod assembly (2) and is partially located below the switch operating rod (4).

3. The tempering time delay valve of claim 2, wherein: the water mixing cavity (100) is at least partially arranged on the periphery of the piston cavity (202).

4. The temperature-regulating time-delay valve of claim 3, wherein: the water mixing valve rod component (2) comprises

The water mixing operation valve rod (21) can be rotatably arranged at the upper end of the valve shell (1) around the axis of the water mixing operation valve rod, and the upper end of the switch operation rod (4) penetrates out of the water mixing operation valve rod (21);

a first core shell (22) which is fixedly connected with the lower part of the mixed water operation valve rod (21) and is internally provided with at least a partial piston cavity (202);

the second core shell (23) is located on the periphery of the first core shell (22) and fixedly connected with the first core shell (22), the lower end of the second core shell (23) is connected with the water mixing valve piece assembly (3), and the second core shell (23), the water mixing valve piece assembly (3) and the first core shell (22) jointly define the water mixing cavity (100).

5. The temperature-regulating time-delay valve of claim 4, wherein: mix water valve block subassembly (3) include with valve casing (1) fixed connection's fixed valve piece (31) with stack in the top of fixed valve piece (31) and with second core casing (23) fixed connection's movable valve piece (32), be equipped with on fixed valve piece (31) with first water inlet (121) intercommunication first cross mouth of a river (311) and cross mouth of a river (312) with the second of second water inlet (122) intercommunication, be equipped with on movable valve piece (32) with first opening (321) of mixing water chamber (100) intercommunication, just the rotation of mixing water valve block subassembly (2) can drive movable valve piece (32) rotate around self axis, thereby make first opening (321) with first mouth of a river (311) and/or the second of crossing mouth of a river (312) intercommunication.

6. The temperature-regulating time-delay valve of claim 4, wherein: a second communication port (221) is formed in the peripheral wall of the first core shell (22), and the valve port (203) is communicated with the water mixing cavity (100) through the second communication port (221); a third communicating opening (211) is formed in the peripheral wall of the mixed water operation valve rod (21), and the valve port (203) is communicated with the water outlet (111) through the third communicating opening (211).

7. The temperature-regulating time-delay valve of claim 4, wherein: the water mixing operation valve rod (21) and the first core shell (22) jointly form a first inner cavity (20), a sealing ring assembly (7) is arranged in the first inner cavity (20), the first inner cavity (20) is divided into a second inner cavity (201) and a piston cavity (202) by the sealing ring assembly (7), and the switch operation rod (4) penetrates through a center hole of the sealing ring assembly (7).

8. A tempering time delay valve according to any of claims 1-7 wherein: the piston assembly (5) is provided with an overflowing hole (512) and a valve hole (511) which are communicated with the water storage cavity (202), in the process that the piston assembly (5) moves downwards in the axial direction to open the valve port (203), the valve hole (511) can be communicated with the water outlet (111) to enable water in the water storage cavity (202) to flow to the water outlet (111) through the valve hole (511), in the process that the piston assembly (5) moves upwards in the axial direction to close the valve port (203), the overflowing hole (512) can be communicated with the water mixing cavity (100) to enable the water in the water mixing cavity (100) to flow to the water storage cavity (202) through the overflowing hole (512), and the flow cross-sectional area of the valve hole (511) is larger than that of the overflowing hole (512).

9. The temperature-regulating time-delay valve of claim 8, wherein: the piston assembly (5) comprises

The piston body (51) is in sliding fit with the piston cavity (202), the valve hole (511) penetrates through the piston body (51) along the axial direction, and the overflowing hole (512) is arranged at the lower part of the piston body (51) along the axial direction;

a blocking piece (52) arranged on the piston body (51) and used for opening or closing the valve port (203), wherein the blocking piece (52) is positioned between the upper end of the valve hole (511) and the upper end of the overflowing hole (512);

the delay valve rod component (53) is axially movably arranged in the valve hole (511) and can open or close the valve hole (511), and the first elastic piece (61) acts on the delay valve rod component (53) so that the delay valve rod component (53) always has the tendency of moving upwards along the axial direction relative to the piston body (51);

and a second elastic piece (62) is further arranged in the valve shell (1), the switch operating rod (4) always has a tendency of moving upwards along the axial direction, and the axial downward movement of the switch operating rod (4) can drive the time delay valve rod assembly (53) to move downwards relative to the piston body (51) so as to open the valve hole (511).

10. A tempering time delay valve according to any of claims 1-7 wherein: the first water inlet (121) and the second water inlet (122) are both arranged at the bottom of the valve casing (1), and check valve assemblies (8) are arranged at the first water inlet (121) and the second water inlet (122); the water outlet (111) is arranged on the peripheral wall of the valve casing (1).

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