CN217952720U

CN217952720U - Pipe valve device capable of automatically adapting to pressure conditions and preventing cold water and hot water from being connected in series

Info

Publication number: CN217952720U
Application number: CN202121407122.4U
Authority: CN
Inventors: 王强
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-12-02
Anticipated expiration: 2031-06-23

Abstract

The utility model relates to an automatic pressure condition's pipe valve device of preventing cold and hot water cluster each other, include: the water pressure sensing transmission device and the water flow stopping device; the hydraulic pressure sensing transmission device comprises: the hydraulic control system comprises a pressure pipe barrel, a piston type hydraulic sensing rod and a hydraulic water flow linkage rod; the pressure pipe barrel is provided with a first opening, one end of the piston type water pressure sensing rod is provided with a sealing piston, and the sealing piston is slidably arranged in the pressure pipe barrel; one end of the hydraulic water flow linkage rod is slidably arranged on the piston type hydraulic pressure sensing rod; the water flow stopping device comprises: the water flow passage stop valve plate is slidably arranged in the first transverse pipe; the water heater can ensure that the circulating water flow of the zero-cold-water heater normally passes through, can block the interference water flow generated by using cold water, eliminates the phenomenon of mistakenly igniting a burner of the water heater, and more importantly, can automatically adapt to the individual pressure condition of the pipeline environment.

Description

Pipe valve device capable of automatically adapting to pressure conditions and preventing cold water and hot water from being connected in series

Technical Field

The utility model relates to a zero cold water heater technical field, in particular to automatic pipe valve device of cold-proof hot water of adaptation pressure condition cluster each other.

Background

When the zero-cold water heater in the prior art is installed and applied in a pipeline environment without a hot water return pipe, the most universal method for establishing the water flow circulation condition is to install an H-shaped cold and hot water pipeline connecting piece in the prior art at a water consumption point which is farthest away from the water heater in the pipeline environment, and connect the cold water pipe and the hot water pipe of the water consumption point in series to ensure that normal-temperature water stored in the hot water pipeline can flow back to a cold water inlet of the water heater through the cold water pipe under the driving of a circulating device of the zero-cold water heater, and the normal-temperature water is heated by the water heater and then is conveyed to the water consumption point communicated with the H-shaped cold and hot water pipeline connecting piece in the prior art through the hot water pipeline again so as to achieve the aim of circularly heating the water stored in the hot water pipeline. (see FIG. 19)

The 'H-shaped cold and hot water pipe connecting piece' in the prior art is composed of a transverse pipe with a built-in one-way valve in the prior art and two tee joints (see figure 22), the built-in one-way valve in the prior art mainly aims to ensure the unidirectional flow of water flow in a hot water pipe and prevent the water flow in a cold water pipe from flowing into the hot water pipe, and simultaneously has the function of preventing the water flow with smaller flow from one side of the hot water pipe from entering the cold water pipe.

In practical application, various types of cold and hot water using points such as kitchens, toilets and flushing toilets generally exist in the environment of water pipelines governed by a zero-cold water heater, and an 'H-shaped cold and hot water pipeline connecting piece' in the prior art has the following problem in compatibility with the zero-cold water heater in use, namely when a user uses the flushing toilet at any water using point or opens a cold water faucet to use cold water, water flow in a hot water pipeline on one side of the 'H-shaped cold and hot water pipeline connecting piece' generally flushes a check valve to be communicated with a cold water pipeline on the other side, so that a phenomenon of mistakenly igniting a burner of the water heater occurs, and the use experience of the user is influenced. (see FIG. 20)

In the pipeline environment without a hot water return pipe, the water flow flowing from one side of the hot water pipe to one side of the cold water pipe through the H-shaped cold and hot water pipe connecting piece is divided into the following two types:

firstly, circulating water flow generated by the driving of a circulating device of a zero-cold water heater flows from one side of a hot water pipe to one side of a cold water pipe through a valve body of an H-shaped cold and hot water pipe connecting piece; in the prior art, the flow rate of circulating water flow passing through an H-shaped cold and hot water pipe connector driven by a circulating device of a zero-cold water heater is usually about 4L-6L per minute. It should be noted that the water heater burner can be ignited only when a certain flow rate is reached, and the gas water heater in the prior art usually needs a flow rate of more than 2L per minute or higher to ignite the burner, that is, the water flow of the water stream below 2L per minute does not ignite the water heater burner.

Secondly, when the cold water faucet is opened or the toilet flushes and other cold water using actions are carried out in the water heater pipeline environment by using water, a part of water flow in the water yield of the opened cold water faucet or the flushed toilet is in series flow from one side of the hot water pipe to one side of the cold water pipe through an H-shaped cold and hot water pipe connector in the prior art, the maximum interference water cross flow can reach or exceed 6L/min in actual detection, and the size of the interference water cross flow is in direct proportion to the pipeline environment pressure and the water yield of the opened cold water faucet. (see FIG. 20)

Because the circulating water flow of the zero-cold water heater and the interference water flow after the flushing toilet is used or the cold water faucet is opened to use cold water are in the same direction, the H-shaped cold and hot water pipe connecting piece in the prior art cannot distinguish the circulating water flow from the interference water flow and cannot prevent the interference water flow, and therefore, the phenomenon that the burner of the water heater is ignited by mistake due to the large cold water actions of the flushing toilet, the cold water faucet is opened and the like is always a common difficult problem of zero-cold water heater products in the prior art.

Through experimental research and analysis, the two water flows flowing through the H-shaped cold and hot water pipe connecting piece have an important condition difference, namely: when the circulating water flow of the zero-cold water heater occurs, the condition that all cold and hot water taps in the environment of the water pipeline are in a closed state is taken as the condition, namely the pressure born by the H-shaped cold and hot water pipe connecting piece is not reduced when the circulating water flow occurs. When the interference water current flows through the valve body, the original pressure in the H-shaped cold and hot water pipe connector can be reduced to different degrees according to the outlet flow of the opened faucet. The change of the pressure condition creates necessary working conditions for the pipe valve device which can automatically adapt to the pressure condition and prevent cold water and hot water from being connected in series.

However, in practical application, especially from the aspect of field installation procedures, a real and troublesome problem needs to be faced, namely that the pressure standard of the domestic tap water pipeline is usually in the range of 0.1mpa to 0.4mpa, different water consumption point pressures at different positions are different due to various factors such as different distances between buildings with different heights in different regions, even different lengths of pipelines between water consumption points and water heaters, or the number of turns, and the like, and complicated pressure measurement and debugging processes need to be carried out according to the individual pressure conditions of field pipeline environments in a targeted manner.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cold and hot water cross-connection prevention pipe valve device capable of automatically adapting to pressure conditions, which can automatically adapt to various pressure conditions in the pipeline environment governed by a zero-cold-water heater, automatically identify and distinguish the instant water flow source passing through the valve body according to the dynamic pressure change, not only can allow the circulating water flow of the zero-cold-water heater to normally pass, but also can prevent the water flow cross-connection caused by the cold water using actions such as using a flushing toilet or opening a cold water tap and the like, eliminate the phenomenon of mistakenly igniting a water heater burner and ensure that a user is more comfortable; more importantly, the cold and hot water cross-connection prevention pipe valve device capable of automatically adapting to the pressure conditions can automatically adapt to individual pressure conditions of the pipeline environment of thousands of households, omits complex manual actions such as pressure test detection, calibration debugging, repeated disassembly and assembly and the like in the field installation process, and obviously improves the field installation work efficiency; the utility model provides a pair of prevent the pipe valve device of cold and hot water cluster each other of automatic adaptation pressure condition is the same with "the cold and hot water pipe connection spare of H type" mounted position, mounting method under the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

a cold and hot water cross-connection prevention pipe valve device automatically adapting to pressure conditions comprises: the water pressure sensing transmission device and the water flow stopping device;

the hydraulic pressure sensing transmission device comprises: the device comprises a pressure pipe barrel 1, a piston type water pressure sensing rod 2 and a water pressure water flow linkage rod 3;

the pressure pipe barrel 1 is provided with a first opening 4, one end of the piston type water pressure sensing rod 2 is provided with a sealing piston 5, the sealing piston 5 is slidably arranged in the pressure pipe barrel 1, and the other end of the piston type water pressure sensing rod 2 extends out of the first opening 4;

one end of the hydraulic water flow linkage rod 3 is slidably arranged on the piston type hydraulic pressure sensing rod 2, and the diameter of the hydraulic water flow linkage rod 3 is larger than that of the first opening 4;

the water flow stopping device comprises: a first horizontal pipe 6 and a water flow channel stop valve plate 7;

the first transverse pipe 6 is provided with a second opening 8 and a third opening 9;

the water flow channel stop valve plate 7 is slidably arranged in the first transverse pipe 6.

Preferably, the water flow stopping device further comprises: a valve plate stroke control spring 10;

the valve plate stroke control spring 10 is arranged in the first transverse pipe 6, one end of the valve plate stroke control spring 10 is connected with one side, facing the third opening 9, of the water flow channel stop valve plate 7, and the other end of the valve plate stroke control spring is connected with the hydraulic water flow linkage rod 3.

Preferably, the water flow stopping device further comprises: a valve plate stroke control rod 11;

the valve plate stroke control rod 11 is arranged in the first transverse pipe 6 and on one side of the third opening 9, the water pressure water flow linkage rod 3 is connected with the water flow channel stop valve plate 7, one end of the valve plate stroke control rod 11 is connected with one side of the water flow channel stop valve plate 7, and the other end of the valve plate stroke control rod is connected with the water pressure water flow linkage rod 3.

Preferably, the hydraulic water flow linkage rod 3 is provided with a first magnet 12, and the water flow channel stop valve plate 7 is provided with a second magnet 13.

Preferably, the water flow path shutoff valve plate 7 is larger than the third opening 9.

Preferably, the water flow passage shutoff valve plate 7 is larger than the second opening 8.

Preferably, the hydraulic pressure sensing transmission device further comprises: a water pressure sensing spring 14;

the water pressure induction spring 14 is arranged in the pressure pipe barrel 1, one end of the water pressure induction spring is connected with the barrel wall of the pressure pipe barrel 1, and the other end of the water pressure induction spring is connected with one end, provided with the sealing piston 5, of the piston type water pressure induction rod 2.

Preferably, the method further comprises the following steps: a second cross tube 15, a first tee 16 and a second tee 17;

the second cross tube 15 is provided with a fourth opening 18 and a fifth opening 19;

the first tee 16 is provided with a sixth opening 20, a seventh opening 21 and an eighth opening 22;

the second tee 17 is provided with a ninth opening 23, a tenth opening 24 and an eleventh opening 25;

the fourth opening 18 is connected with the sixth opening 20, and the fifth opening 19 is connected with the ninth opening 23;

the hydraulic pressure sensing transmission device and the water flow stopping device are arranged in the second transverse pipe 15;

through implementing above technical scheme, have following technological effect: except having the basic function of "H type cold and hot water pipe connection piece" under the prior art, the utility model provides an automatic adaptation pressure condition's cold and hot water of preventing pipe valve device that clusters each other, various pressure conditions in the pipeline environment under jurisdiction of zero cold water heater can automatic adaptation, and pass through the rivers source in the valve body immediately according to pressure dynamic change automatic identification, differentiation valve body, can permit zero cold water heater circulation rivers and normally pass through, can prevent to use the interference cluster rivers that the cold water actions such as toilet bowl or other opening cold water taps produced, eliminate the phenomenon that the mistake ignites the water heater combustor, make the user more comfortable; more importantly the utility model provides a pair of automatic adaptation pressure condition's cold-proof hot water is each other's pipe valve device of cluster can automatic adaptation thousands of families pipeline environment's individual character pressure condition, has saved loaded down with trivial details manual action such as pressure testing detection, calibration debugging, repeated dismouting in the field installation process, is showing and has improved field installation work efficiency.

Drawings

Fig. 1 shows the position relationship between the piston type water pressure sensing rod 2 and the water pressure and water flow linkage rod 3, the first opening 4 and the third opening 9 under normal pressure and under the state that the water is not introduced and the pressure is not applied when the water pressure sensing device is installed in a pipeline environment; the position relation between the water flow channel stop valve plate 7 and the valve plate stroke control spring 10 and the position relation between the second opening 8 and the third opening 9 are schematic;

fig. 2 shows the positional relationship among the piston type water pressure sensing rod 2, the water pressure and water flow linkage rod 3, the first opening 4 and the third opening 9 in a constant pressure state after water is introduced into a pipeline environment; the position relation between the water flow channel stop valve plate 7 and the valve plate stroke control spring 10 and the position relation between the second opening 8 and the third opening 9 are schematic;

fig. 3 shows the positional relationship between the piston type water pressure sensing rod 2 and the water pressure and water flow linkage rod 3 and the first opening 4 and the third opening 9 when the circulating water flow occurs; the position relation between the water flow channel stop valve plate 7 and the valve plate stroke control spring 10 and the position relation between the second opening 8 and the third opening 9 are schematic;

fig. 4, when an interfering water current is generated, the piston type water pressure sensing rod 2 and the water pressure and water current linkage rod 3 are in a position relation with the first opening 4 and the third opening 9; the position relation between the water flow channel stop valve plate 7 and the valve plate stroke control spring 10 and the position relation between the second opening 8 and the third opening 9 are schematic;

fig. 5 shows the positional relationship between the piston type water pressure sensing rod 2 and the water pressure and water flow linkage rod 3 and the first opening 4 and the third opening 9 when the interference water flow disappears; a schematic diagram of the position relationship between the water flow channel stop valve plate 7 and the valve plate stroke control spring 10 and the position relationship between the second opening 8 and the third opening 9;

FIG. 6 shows the position relationship between the piston type hydraulic pressure sensing rod 2 and the hydraulic water flow linkage rod 3 and the first opening 4 and the third opening 9 when a hot water tap is opened in the pipeline environment; the position relation between the water flow channel stop valve plate 7 and the valve plate stroke control rod 11, and the position relation between the second opening 8 and the third opening 9 are schematic;

fig. 7 shows the position relationship among the piston type water pressure sensing rod 2, the water pressure and water flow linkage rod 3, the first opening 4 and the third opening 9 under normal pressure and under the non-water-flowing and non-pressure state when the water pressure sensing device is installed in a pipeline environment; a schematic diagram of the position relationship between the water flow channel stop valve plate 7 and the valve plate stroke control rod 11, and between the second opening 8 and the third opening 9;

fig. 8 shows the positional relationship between the piston type water pressure sensing rod 2 and the water pressure and flow linkage rod 3, and the first opening 4 and the third opening 9 when the piston type water pressure sensing rod and the water pressure and flow linkage rod are installed in a pipeline environment in a constant pressure state after water is introduced; the position relation between the water flow channel stop valve plate 7 and the valve plate stroke control rod 11, and the position relation between the second opening 8 and the third opening 9 are schematic;

fig. 9, when the circulating water flow occurs, the piston type water pressure sensing rod 2 and the water pressure water flow linkage rod 3 are in a position relation with the first opening 4 and the third opening 9; the position relation between the water flow channel stop valve plate 7 and the valve plate stroke control rod 11, and the position relation between the second opening 8 and the third opening 9 are schematic;

fig. 10, the piston type water pressure sensing rod 2 and the water pressure and water flow linkage rod 3 are in position relation with the first opening 4 and the third opening 9 when the interference water flow is generated; the position relation between the water flow channel stop valve plate 7 and the valve plate stroke control rod 11, and the position relation between the second opening 8 and the third opening 9 are schematic;

fig. 11 shows the positional relationship between the piston-type water pressure sensing rod 2 and the water pressure and water flow linkage rod 3, the first opening 4 and the third opening 9 when the interfering water flow disappears; the position relation between the water flow channel stop valve plate 7 and the valve plate stroke control rod 11, and the position relation between the second opening 8 and the third opening 9 are schematic;

FIG. 12, when a hot water faucet is opened in a pipeline environment, the piston type water pressure sensing rod 2 and the water pressure and water flow linkage rod 3 are in a position relation with the first opening 4 and the third opening 9; the position relation between the water flow channel stop valve plate 7 and the valve plate stroke control rod 11, and the position relation between the second opening 8 and the third opening 9 are schematic;

fig. 13 shows the position relationship among the piston type water pressure sensing rod 2, the water pressure and flow linkage rod 3, the first opening 4 and the third opening 9 under normal pressure and under the non-water-flowing and non-pressure state when the water pressure sensing device is installed in a pipeline environment; a schematic diagram of the position relationship between the water flow passage stop valve plate 7 and the second and

third openings

8 and 9 under the action of the repulsive force between the first magnet 12 and the second magnet 13;

fig. 14 shows the positional relationship between the piston type water pressure sensing rod 2 and the water pressure and flow linkage rod 3, and the first opening 4 and the third opening 9 when the piston type water pressure sensing rod and the water pressure and flow linkage rod are installed in a constant pressure state after water is introduced into a pipeline environment; a schematic diagram of the position relationship between the water flow passage stop valve plate 7 and the second and

third openings

fig. 15, when the circulating water flow occurs, the piston type water pressure sensing rod 2 and the water pressure water flow linkage rod 3 are in a position relation with the first opening 4 and the third opening 9; a schematic diagram of the position relationship between the water flow passage stop valve plate 7 and the second and

third openings

fig. 16, the piston type water pressure sensing rod 2 and the water pressure and water flow linkage rod 3 are in position relation with the first opening 4 and the third opening 9 when the interference water flow is generated; a schematic diagram of the position relationship between the water flow passage stop valve plate 7 and the second and

third openings

fig. 17 shows the positional relationship between the piston-type water pressure sensing rod 2 and the water pressure and water flow linkage rod 3, the first opening 4 and the third opening 9 when the interfering water flow disappears; a schematic diagram of the position relationship between the water flow passage stop valve plate 7 and the second and

third openings

FIG. 18, when a hot water tap is opened in the pipeline environment, the piston type water pressure sensing rod 2 and the water pressure and water flow linkage rod 3 are in a position relation with the first opening 4 and the third opening 9; a schematic diagram of the position relationship between the water flow passage stop valve plate 7 and the second and

third openings

FIG. 19 is a schematic view of an "H-shaped cold and hot water pipeline connecting piece" in the prior art and the same installation position and pipeline environment circulating water flow path of the present invention;

fig. 20 is a schematic diagram of a route of an interfering water flow when a cold water faucet is opened or a toilet flushing action occurs in a pipeline environment in which an H-shaped cold and hot water pipeline connector of the prior art is installed (the interfering water flow occurs in a valve body);

fig. 21 is a schematic diagram of a flow path in a pipeline environment (where non-interfering water flow in a valve body occurs) when a cold water faucet is opened or a toilet flushing action occurs in the pipeline environment of a water heater after a pipe valve device for preventing cold and hot water from being connected in series and automatically adapting to a pressure condition is installed;

FIG. 22 is a schematic view of a prior art "H-style hot and cold water connection" configuration;

description of the main element symbols: a is the water point cold water inlet pipe mouth, and B is the cold water import of mixing the water valve with the water point, and C is the water point hot water inlet pipe mouth, and D is the hot water import of mixing the water valve with the water point, and the zero cold water heater's of E mounted position, F are the hot water export of water heater, and G is the cold water import of water heater, and H is the cold water house steward of registering one's residence, and I is the cold water pipe, and J is the hot-water line, and K is the installation the utility model discloses or prior art "the cold and hot water piping connection spare of H type" mounted position, L are other water points in the same pipeline environment, and M is the check valve, and N is the closestool place position.

Detailed Description

For better understanding of the technical solutions of the present invention, the following detailed description of the embodiments provided in the present invention is provided with reference to fig. 1 to 22.

The first embodiment is as follows: a cold and hot water cross-connection prevention pipe valve device automatically adapting to pressure conditions comprises: the water pressure sensing transmission device and the water flow stopping device;

the water flow channel stop valve plate 7 is arranged in the first transverse pipe 6 in a sliding manner;

in this embodiment, the third opening 9 may be in the form of a bayonet which is arranged in the first transverse tube 6 and is smaller than the inner diameter of the first transverse tube 6, or in the form of a closed tube section which is smaller than the inner diameter of the first transverse tube 6; the first opening is arranged at the same side as the third opening 9 of the second opening 4;

in practical application, the second opening 8 leads to the direction of a hot water pipe, and the third opening 9 leads to the direction of a cold water pipe; when the water flow channel stop valve plate 7 is impacted by water flow from one side of the second opening 8, the water flow channel stop valve plate can slide towards the third opening 9 to be close to the third opening 9 so as to greatly reduce the water passing amount or completely close the third opening 9; when water flow impact is received from the third opening 9 side, the water flow channel stop valve plate 7 can slide towards the second opening 8 to close the second opening; the hydraulic water flow linkage rod 3 is larger than the first opening 4, the hydraulic water flow linkage rod 3 cannot enter the pressure pipe barrel 1 from the first opening 4 under the action of external pressure, and the area of the hydraulic water flow linkage rod 3 corresponding to the third opening 9 is in a grid shape, so that the water flow of the third opening 9 cannot be blocked; the hydraulic water flow linkage rod 3 is arranged on the piston type hydraulic pressure sensing rod 2 in a sliding structure mode and has certain mutual friction resistance, and the position of the hydraulic water flow linkage rod 3 on the piston type hydraulic pressure sensing rod 2 cannot be changed due to water flow impact from any direction of the second opening 8 or the third opening 9 under the action of the friction resistance;

the utility model relates to an automatic adaptation pressure condition's pipe valve device that cold and hot water of preventing is from bunching mutually can automatic adaptation pipeline environment individual character pressure condition's technical principle be: because the hydraulic water flow linkage rod 3 and the piston type hydraulic pressure sensing rod 2 are combined in a sliding structural mode and have certain frictional resistance, when the piston type hydraulic pressure sensing rod 2 slides into the pressure pipe barrel 1 under pressure (the pressure is different and the penetration distance is different), the hydraulic water flow linkage rod 3 is prevented by the first opening 4 and is always kept at a position which is jointed with the first opening 4 of the pressure pipe barrel 1; when the pressure is reduced, the piston type water pressure sensing rod 2 slides outwards for a corresponding distance due to the expansion effect of the gas in the pressure pipe barrel 1, and at the moment, the water pressure and water flow linkage rod 3 moves back and forth synchronously under the action of the frictional resistance between the water pressure and water flow linkage rod and the piston type water pressure sensing rod 2 and is separated from the first opening 4 for a certain distance; the frictional resistance between the hydraulic water flow linkage rod 3 and the piston type hydraulic pressure sensing rod 2 is larger than the impact force of water flow which can be applied to the hydraulic pressure water flow linkage rod, and the position of the hydraulic pressure water flow linkage rod on the piston type hydraulic pressure sensing rod 2 cannot be changed due to the impact of the water flow;

the utility model relates to an automatic pipe valve device of cold and hot water of preventing of adaptation pressure condition cluster is automatic distinguishes, discerns zero cold water heater circulation rivers and the technical principle of interference nature cluster rivers and is: the condition that each cold and hot water faucet in the pipeline environment is closed is required for forming a complete circulating loop by the circulating water flow of the zero cold water heater, namely, the pipeline environment and the pressure in the valve body of the utility model cannot be reduced when the circulating water flow occurs; when the water flow with interference is generated, a cold water faucet with a certain water using point in the pipeline environment is opened or a flushing closestool is used, and the pipeline environment and the pressure born by the valve body of the utility model can be reduced to some extent; the utility model makes a targeted reaction action to the water flow from two different sources according to the characteristic of pressure change in the valve body and the linkage relation among the piston type water pressure sensing rod 2, the water pressure water flow linkage rod 3 and the water flow channel stop valve plate 7; in this embodiment, the first horizontal pipe 6 is arranged parallel to the pressure pipe barrel 1, and in other embodiments, the first horizontal pipe 6 and the pressure pipe barrel 1 may also be arranged longitudinally;

the following is respectively to the pipe valve device of the present invention, which is capable of automatically adapting to pressure conditions and preventing cold and hot water from crossing each other, in "normal pressure state, including installing the present invention in water pipeline, when the present invention is installed in constant pressure state after water is passed through, when the zero cold water heater circulating device starts to operate, when circulating water flow occurs, when cold water tap is opened in pipeline environment or when cold water action such as toilet flushing is used to generate interference water flow, when cold water tap opened in pipeline environment is closed, after the interference water flow disappears, and when hot water tap is opened in pipeline environment and under various pressures or when pressure conditions change, the linkage relationship between the pressure pipe 1, the piston type water pressure sensing rod 2, the water pressure water flow linkage rod 3 and the water flow channel stop valve plate 7 and the corresponding position relationship between the above components are specifically explained;

under the normal pressure state, including installing the utility model in the water pipeline after the no water no pressure state, the piston water pressure induction rod 2 is not stressed by pressure, the sealing piston 5 is in the pressure pipe barrel 1 the first opening 4 port position, the piston water pressure induction rod 2 other parts are in the pressure pipe barrel 1 outside the first opening 4, the water pressure water flow linkage rod 3 is in the initial position near or clinging to the first opening 4, the water flow channel stop valve plate 7 is in the initial standby position which keeps a certain distance with the third opening 9, near or clings to the second opening 8, the third opening 9 is unblocked; (see FIG. 1)

When the pipe valve device capable of automatically adapting to pressure conditions and preventing cold and hot water from being connected in series is installed in a pipeline environment and is under a water-through pressure bearing state, but no water flow occurs, the piston type water pressure sensing rod 2 is pressed and compresses gas in the pressure pipe barrel 1 to slide deeply into the pressure pipe barrel 1, meanwhile, because the pressure is greater than the friction resistance between the water pressure flow linkage rod 3 and the piston type water pressure sensing rod 2, and because of the limiting and blocking effect of the first opening 4, when the piston type water pressure sensing rod 2 is pressed and slides deeply into the pressure pipe barrel 1, the water pressure flow linkage rod 3 is forced to slide and move back on the piston type water pressure sensing rod 2 and is always kept at a position tightly jointed with the first opening 4, and because the water pressure flow rod 3 is greater than the first opening 4 and partially covers the third opening 9, the pipe valve device is also kept at a position directly or indirectly jointed with the third opening 9; at this time, the water flow channel stop valve plate 7 is at an initial standby position which keeps a certain distance from the third opening 9, is close to or closely attached to the second opening 8, and the third opening 9 is unblocked; (see FIG. 2)

When the circulating device of the zero-cold water heater starts to operate and circulating water flows, because all cold and hot water taps in the pipeline environment are in a closed state at the moment, the pressure condition in the pipeline environment is not changed, the valve body of the utility model is still in a constant-pressure pressed state, the hydraulic pressure water flow linkage rod 3 is still in a position close to the first opening 4, the water flow channel stop valve plate 7 can not close the third opening 9 and can not block the water flow channel of the first transverse pipe 6, and the circulating water flow of the zero-cold water heater can enter the first transverse pipe 6 from the second opening 8 communicated with the hot water pipe of the water heater and flow out to the third opening 9 communicated with the cold water pipe of the water heater; (see FIG. 3)

When a cold water faucet is opened or cold water actions such as flushing by using a toilet bowl and the like occur in a pipeline environment to generate an interference water flow, the pipeline environment and the pressure born by the cold and hot water inter-series prevention pipe valve device automatically adapting to a pressure condition are reduced (the reduction range of water pressure is related to the interference water flow), the compressed gas in the pressure pipe barrel 1 expands to push the sealing piston 5 to enable the piston type water pressure sensing rod 2 to slide outwards for a corresponding distance, the water pressure and water flow linkage rod 3 synchronously moves along with the piston type water pressure sensing rod 2 under the action of friction force and is separated from the first opening 4 and the third opening 9, so that the water flow channel stop valve plate 7 can slide towards the third opening 9 to be close or completely closed under the impact of the interference water flow, and the interference water flow is greatly reduced or completely blocked; (see FIG. 4)

When the cold water tap opened in the pipeline environment is closed, the utility model discloses after the internal interference nature cluster rivers of valve body disappear, in the pipeline environment with the utility model discloses an automatic pressure condition's cold and hot water of preventing cluster's pipe valve device recovers to bearing the constant voltage state, piston water pressure sensing rod 2 is pressed and is deepened again pressure pipe barrel 1, water pressure rivers gangbar 3 recovers to laminating first opening 4 and directly or indirectly laminating third opening 9's position again, rivers passageway stop valve plate 7 recovers to keep a certain distance with third opening 9, is close to or pastes tight the initial standby position of second opening 8, third opening 9 recovers unblocked; (see FIG. 5)

When a hot water faucet is opened in a pipeline environment, under the impact of water flow from one side of the third opening 9, the water flow channel stop valve plate 7 at a position close to or close to the second opening 8 closes the second opening 8, so that water on one side of a cold water pipe communicated with the third opening 9 is prevented from flowing to one side of a hot water pipe through the second opening 8; at the moment, the sliding of the water flow channel stop valve plate 7 to the second opening 8 is irrelevant to the pressure condition in the valve body of the utility model; (see FIG. 6)

The utility model relates to a cold and hot water inter-series prevention pipe valve device automatically adapting to pressure conditions can automatically realize automatic identification and distinguish instant water flow sources according to the dynamic change of the pressure conditions in the pipeline environment controlled by a zero-cold water heater, can allow the circulating water flow of the zero-cold water heater to normally pass, can prevent the water flow of interference cross water flow generated by using a flushing toilet or opening other cold water actions such as a cold water faucet, and eliminate the phenomenon of mistakenly igniting a water heater burner, so that a user is more comfortable; more importantly, the utility model can automatically adapt to individual pressure conditions of the pipeline environment of thousands of households, omits complex manual actions such as pressure test detection, calibration and debugging and the like in the installation process, and obviously improves the working efficiency of field installation; the utility model provides a pair of prevent the pipe valve device of cold and hot water cluster each other of automatic adaptation pressure condition is the same with "the cold and hot water pipe connection spare of H type" mounted position, mounting method under the prior art.

On the basis of the first embodiment, in the second embodiment, more specifically, the water flow shutoff device further includes: a valve plate stroke control spring 10;

the valve plate stroke control spring 10 is arranged in the first transverse pipe 6, one end of the valve plate stroke control spring 10 is connected with one side, facing the third opening 9, of the water flow channel stop valve plate 7 and is fixedly connected with the water pressure water flow linkage rod 3, and the other end of the valve plate stroke control spring is connected with the water pressure water flow linkage rod 3; (see FIG. 1)

In the present embodiment, one end of the valve plate stroke control spring 10 may be fixedly connected to a side of the water flow passage shutoff valve plate 7 facing the third opening 9; in other embodiments, the valve plate stroke control spring 10 can also be fixedly connected to the hydraulic water flow linkage rod 3;

in the embodiment, the valve plate stroke control spring 10 is used for establishing a linkage relation between the hydraulic water flow linkage rod 3 and the water flow channel stop valve plate 7; controlling and maintaining the positional relationship of the water flow passage cut-off valve plate 7 with the second opening 8 and the third opening 9, controlling the sliding stroke of the water flow passage cut-off valve plate 7;

when the pipe valve device is in a normal pressure state, the pipe valve device which automatically adapts to pressure conditions and prevents cold and hot water from being connected in series is installed in a water pipeline and then is in a non-pressure state without water passing through, the water pressure and water flow linkage rod 3 attached to the first opening 4 and the third opening 9 ensures that the water flow channel stop valve plate 7 is positioned at an initial standby position which keeps a certain distance from the third opening 9, is close to or is tightly attached to the second opening 8 through the valve plate stroke control spring 10; (see FIG. 1)

When the pipe valve device capable of automatically adapting to pressure conditions and preventing cold and hot water from being connected in series is installed in a constant pressure state after water is introduced into a pipeline environment, the water pressure and water flow linkage rod 3 attached to the first opening 4 and the third opening 9 enables the water flow channel stop valve plate 7 to be located at an initial standby position which keeps a certain distance from the third opening 9, is close to or is tightly attached to the second opening 8 through the valve plate stroke control spring 10, and the third opening 9 is unblocked; (see FIG. 2)

When the circulating device of the zero-water-cooling water heater starts to operate and circulating water flows occur, the pipeline environment is kept, and the pressure born by the pipe valve device which automatically adapts to pressure conditions and prevents cold and hot water from being connected in series is not reduced, the hydraulic water flow linkage rod 3 is still kept at the position attached to the first opening 4 and the third opening 9, although the hydraulic water flow linkage rod is impacted by the circulating water flow from the outer side of the second opening 8, the water flow channel stop valve plate 7 is separated from the second opening 8 and slides towards the third opening 9, at the moment, because the position of the hydraulic water flow linkage rod 3 is not retreated, the impulsive force of the circulating water flow is not enough to overcome the resistance of the valve plate stroke control spring 10 to push the water flow channel stop valve plate 7 to the position for closing the third opening 9, and the circulating water flow can continuously pass through; (see FIG. 3)

When a cold water faucet in the pipeline environment is opened or cold water actions such as flushing by using a toilet bowl and the like are performed to generate interference water flow, the pipeline environment and the pressure born by the cold and hot water inter-series prevention pipe valve device automatically adapting to the pressure condition are reduced, the water pressure and water flow linkage rod 3 is separated from the first opening 4 and the third opening 9 under the action of gas expansion in the pressure pipe barrel 1, and at the moment, the water flow channel stop valve plate 7 under the impact of the interference water flow can overcome the resistance of the valve plate stroke control spring 10 to slide to a position close to or close the third opening 9, so that the interference water flow can be greatly reduced or completely blocked; (see FIG. 4)

When the cold water tap opened in the pipeline environment is closed, the utility model discloses after the internal interference nature cluster rivers of valve body disappear, in the pipeline environment with the utility model discloses a prevent that cold and hot water of automatic adaptation pressure condition from bunching pipe valve device resumes to originally bearing original constant voltage state, water pressure rivers gangbar 3 resumes to the position of laminating first opening 4 with third opening 9, water pressure rivers gangbar 3 passes through valve plate stroke control spring 10 and acts on rivers passageway stop valve plate 7, makes it resume to keep a certain distance with third opening 9, be in near or paste tight the initial standby position of second opening 8, third opening 9 resumes unblocked; (see FIG. 5)

When the hot water tap is opened in the pipe environment, the water flow from the side of the third opening 9 impacts the water flow channel stop valve plate 7 in the initial standby position to slide towards the second opening 8 and close the same, so as to prevent the water flow from flowing out of the second opening 8 (see fig. 6), and the sliding of the water flow channel stop valve plate 7 towards the second opening 8 is independent of the pipe environment and the pressure condition in the valve body and the resistance of the valve plate stroke control spring 10; the utility model relates to a cold and hot water inter-series prevention pipe valve device automatically adapting to pressure conditions can automatically realize automatic identification and distinguish instant water flow sources according to the dynamic change of the pressure conditions in the pipeline environment controlled by a zero-cold water heater, can allow the circulating water flow of the zero-cold water heater to normally pass, can prevent the water flow of interference cross water flow generated by using a flushing toilet or opening other cold water actions such as a cold water faucet, and eliminate the phenomenon of mistakenly igniting a water heater burner, so that a user is more comfortable; more importantly, the utility model can automatically adapt to individual pressure conditions of the pipeline environment of thousands of households, omits complex manual actions such as pressure test detection, calibration and debugging and the like in the installation process, and obviously improves the working efficiency of field installation; the utility model provides a pair of prevent the pipe valve device of cold and hot water cluster each other of automatic adaptation pressure condition is the same with "the cold and hot water pipe connection spare of H type" mounted position, mounting method under the prior art.

On the basis of the first embodiment, in the third embodiment, more specifically, the water flow shutoff device further includes: a valve plate stroke control rod 11;

the valve plate stroke control rod 11 is arranged at one side of the third opening 9 in the first transverse pipe 6, the hydraulic water flow linkage rod 3 is arranged between the water flow channel stop valve plate 7, one end of the valve plate stroke control rod 11 is connected with one side, facing the third opening 9, of the water flow channel stop valve plate 7, and the other end of the valve plate stroke control rod is connected with the hydraulic water flow linkage rod 3 (see fig. 7);

in this embodiment, the valve plate stroke control rod 11 may be fixedly connected to a side of the water flow passage shutoff valve plate 7 facing the third opening 9;

the valve plate stroke control rod 11 is used for establishing a linkage relation between the hydraulic water flow linkage rod 3 and the water flow channel stop valve plate 7; controlling and maintaining the positional relationship of the water flow passage cut valve plate 7 with the second opening 8 and the third opening 9, controlling the stroke of the water flow passage cut valve plate 7;

the normal pressure state, including the non-pressure state that the pipe valve device of the cold and hot water preventing series connection of the utility model which automatically adapts to the pressure condition is installed in the water pipeline and is not communicated with the water, the water pressure and water flow linkage rod 3 which is jointed with the first opening 4 and the third opening 9, and the valve plate stroke control rod 11 make the water flow channel stop valve plate 7 be at the initial standby position which keeps a certain distance with the third opening 9, is close to or is tightly jointed with the second opening 8; (see FIG. 7)

When the pipe valve device capable of automatically adapting to pressure conditions and preventing cold and hot water from being connected in series is installed in a pipeline environment in a constant pressure state after water passes through, the water pressure and water flow linkage rod 3 attached to the first opening 4 and the third opening 9 enables the water flow channel stop valve plate 7 to be located at an initial standby position which is at a certain distance from the third opening 9 and close to the second opening 8 through the valve plate stroke control rod 11, and the third opening 9 keeps unblocked; (see FIG. 8)

When the circulating device of the zero-water-cooling water heater starts to operate and circulating water flows occur, the pipeline environment is kept, and the pressure born by the pipe valve device which is used for preventing cold water and hot water from being connected in series and automatically adapting to the pressure condition is not reduced, the water pressure water flow linkage rod 3 is still kept at the position attached to the first opening 4 and the third opening 9, although the impact of the circulating water flow from the outside of the second opening 8 is received, the water flow channel stop valve plate 7 slides towards the direction of the third opening 9, at the moment, the position of the water pressure water flow linkage rod 3 does not move backwards under the action of the water pressure water flow linkage rod 3, the impulsive force of the circulating water flow is not enough to overcome the resistance of the valve plate stroke control rod 11 to push the water flow channel stop valve plate 7 to the position for closing the third opening 9, and the circulating water flow can continuously pass through; (see FIG. 9)

When a cold water faucet is opened or cold water using actions such as flushing by using a toilet bowl and the like are performed in the pipeline environment to generate interference water flow, the pipeline environment and the pressure in the valve body of the water pressure and water flow linkage rod 3 are reduced to cause the water pressure and water flow linkage rod 3 to be separated from the first opening 4 and the third opening 9, at the moment, the valve plate stroke control rod 11 does not prevent the water flow channel stop valve plate 7 from sliding to the third opening 9, and the water flow channel stop valve plate 7 under the impact of the interference water flow can slide to a position close to or close the third opening 9 to reduce or completely block the passage of the interference water flow; (see FIG. 10)

When the cold water tap opened in the pipeline environment is closed, the utility model discloses after the internal interference nature cluster rivers of valve body disappear, in the pipeline environment with the utility model discloses an automatic pressure condition's cold and hot water of preventing cluster's pipe valve device resumes to bear original constant voltage state, water pressure rivers gangbar 3 resumes to the position of laminating first opening 4 with third opening 9, water pressure rivers gangbar 3 passes through valve plate stroke control lever 11 and acts on rivers passageway stop valve plate 7, makes it resume to keep a certain distance with third opening 9, be close to the initial standby position of second opening 8, third opening 9 resumes unblocked; (see FIG. 11)

When the hot water faucet is opened in the pipeline environment, the water flow from the third opening 9 side can impact the water flow channel stop valve plate 7 in the initial standby position to slide towards the second opening 8 and close the same, so as to prevent the water flow from the third opening 9 side from flowing out of the second opening 8 (see fig. 12), and at the moment, the sliding of the water flow channel stop valve plate 7 towards the second opening 8 is not closed with the change of the pipeline environment and the pressure condition in the valve body and the valve plate stroke control rod 11; the utility model relates to a cold and hot water inter-series prevention pipe valve device automatically adapting to pressure conditions can automatically realize automatic identification and distinguish instant water flow sources according to the dynamic change of the pressure conditions in the pipeline environment controlled by a zero-cold water heater, can allow the circulating water flow of the zero-cold water heater to normally pass, can prevent the water flow of interference cross water flow generated by using a flushing toilet or opening other cold water actions such as a cold water faucet, and eliminate the phenomenon of mistakenly igniting a water heater burner, so that a user is more comfortable; more importantly, the utility model can automatically adapt to individual pressure conditions of the pipeline environment of thousands of households, omits complex manual actions such as pressure test detection, calibration and debugging and the like in the installation process, and obviously improves the working efficiency of field installation; the pipe valve device which is provided by the utility model and can automatically adapt to the pressure condition and prevent cold and hot water from being connected in series is the same as the mounting position and the mounting method of the H-shaped cold and hot water pipe connecting piece in the prior art;

in this embodiment, the valve plate stroke control rod 11 may be fixedly connected to one side of the water flow passage stop valve plate 7, and in other embodiments, the valve plate stroke control rod 11 may be made of a flexible material that can be bent and deformed when a pressure exceeds a certain limit.

On the basis of the first embodiment, in the fourth embodiment, more specifically, the hydraulic water flow linkage rod 3 is provided with a first magnet 12, and the water flow channel stop valve plate 7 is provided with a second magnet 13;

in this embodiment, the first magnet 12 and the second magnet 13 are arranged to face each other in like polarity, and the purpose of utilizing the repulsive force between the two magnets is to: the hydraulic pressure water flow linkage rod 3 and the water flow channel stop valve plate 7 are in linkage relation; controlling and maintaining the positional relationship of the water flow passage cut-off valve plate 7 with the second opening 8 and the third opening 9, controlling the sliding stroke of the water flow passage cut-off valve plate 7;

under the normal pressure state, the pipe valve device which automatically adapts to the pressure condition and prevents cold and hot water from being connected in series is installed in the pipeline environment and then is in a non-pressure state without water passing, the water pressure and water flow linkage rod 3 is in an initial standby position tightly attached to the first opening 4, under the action of the repulsive force between the first magnet 12 and the second magnet 13, the water flow channel stop valve plate 7 is in an initial standby position keeping a certain distance from the third opening 9, and the third opening 9 is unblocked; (see FIG. 13)

When the valve body of the utility model is installed in a pipeline environment in a constant pressure state after water is introduced, the water pressure and water flow linkage rod 3 is always kept at a position closely attached to the first opening 4, at the moment, under the action of repulsive force between the first magnet 12 and the second magnet 13, the water flow channel stop valve plate 7 is at an initial standby position which keeps a certain distance from the third opening 9, and the third opening 9 is unblocked; (see FIG. 14)

When the circulating device of the zero-cold water heater starts to operate, the pressure born by the pipe valve device for preventing cold and hot water from being connected in series in the valve body is not reduced due to the pipeline environment, the water pressure water flow linkage rod 3 provided with the first magnet 12 does not move backward, the circulating water flow from one side of the second opening 8 is not enough to overcome the repulsive force of the first magnet 12 and the second magnet 13, the water flow channel stop valve plate 7 cannot be attached to close the third opening 9, and the circulating water flow can continuously pass through; (see FIG. 15)

When a cold water faucet is opened or interference water flow is generated by cold water actions such as flushing by using a closestool in the pipeline environment, the pipeline environment reduces the pressure born by the pipe valve device capable of preventing cold water and hot water from flowing in series, the compressed gas in the pressure pipe barrel 1 expands to enable the piston type water pressure induction rod 2 provided with the first magnet 12 to slide and retreat to be separated from the first opening 4 and the third opening 9, the effective interval of repulsive force of the first magnet 12 and the second magnet 13 retreats along with the piston type water pressure induction rod, and the water flow channel stop valve plate 7 can slide to the position for closing the third opening 9 under the impulsive force of the interference water flow from one side of the second opening 8, so that the interference water flow is blocked; (see FIG. 16)

When the opened cold water faucet in the pipeline environment is closed, and after the water flow is mixed in an interference manner, the pipeline environment is neutralized, the pipe valve device which automatically adapts to the pressure condition and prevents cold and hot water from mixing with each other recovers to bear the original constant pressure state, the piston type water pressure sensing rod 2 is pressed to penetrate into the pressure pipe barrel 1 again, the water pressure water flow linkage rod 3 provided with the first magnet 12 recovers to the position of being attached to the first opening 4 and the third opening 9, the water flow channel stop valve plate 7 recovers to the initial standby position keeping a certain distance with the third opening 9 under the action of the repulsive force between the first magnet 12 and the second magnet 13, and the third opening 9 recovers to be unblocked; (see FIG. 17)

When the hot water tap is opened in the pipe environment, the water flow from the side of the third opening 9 impacts the water flow channel stop valve plate 7 provided with the second magnet 13 in the initial standby position to slide towards the second opening 8 and close it, so as to prevent the water flow from flowing out of the second opening 8 (see fig. 18), and the sliding of the water flow channel stop valve plate 7 towards the second opening 8 is independent of the pressure condition and the repulsive force between the first magnet 12 and the second magnet 13; the utility model relates to a cold and hot water inter-series prevention pipe valve device automatically adapting to pressure conditions can automatically realize automatic identification and distinguish instant water flow sources according to the dynamic change of the pressure conditions in the pipeline environment controlled by a zero-cold water heater, can allow the circulating water flow of the zero-cold water heater to normally pass, can prevent the water flow of interference cross water flow generated by using a flushing toilet or opening other cold water actions such as a cold water faucet, and eliminate the phenomenon of mistakenly igniting a water heater burner, so that a user is more comfortable; more importantly, the utility model can automatically adapt to individual pressure conditions of the pipeline environment of thousands of households, omits complex manual actions such as pressure test detection, calibration and debugging and the like in the installation process, and obviously improves the working efficiency of field installation; the utility model provides a pair of prevent the pipe valve device of cold and hot water cluster each other of automatic adaptation pressure condition is the same with "the cold and hot water pipe connection spare of H type" mounted position, mounting method under the prior art.

In an embodiment five, more specifically, the water flow passage shutoff valve plate 7 is larger than the third opening 9;

the function of the water flow channel stop valve plate 7 being larger than the third opening 9 is to facilitate the water flow channel stop valve plate 7 to completely close the third opening 9 when being impacted by water flow from the side of the second opening 8; the utility model relates to a cold and hot water cross-connection prevention pipe valve device automatically adapting to pressure conditions, which can automatically realize automatic identification and distinguish instant through water flow sources according to the dynamic change of the pressure conditions in the pipeline environment governed by a zero cold water heater, can allow the circulating water flow of the zero cold water heater to normally pass, can prevent the interference cross water flow caused by using a flushing toilet or opening a cold water faucet and other cold water actions from passing, eliminates the phenomenon of mistakenly igniting a water heater burner, and makes a user more comfortable; the utility model has the more important characteristics that the pressure device can automatically adapt to the individual pressure conditions of the pipeline environment of thousands of households, thereby omitting complex manual actions such as pressure test detection, calibration and debugging and the like in the installation process and obviously improving the working efficiency of field installation; the utility model provides a pair of prevent the pipe valve device of cold and hot water cluster each other of automatic adaptation pressure condition is the same with "the cold and hot water pipe connection spare of H type" mounted position, mounting method under the prior art.

On the basis of the first embodiment, in the sixth embodiment, more specifically, the water flow passage shutoff valve plate 7 is larger than the second opening 8;

the function of the water flow channel stop valve plate 7 being larger than the second opening 8 is to facilitate the water flow channel stop valve plate 7 to completely close the second opening 8 when being impacted by water flow from the side of the third opening 9; therefore, the instant water flow source can be automatically identified and distinguished, the circulating water flow of the zero-cold water heater can be allowed to normally pass, the interference water flow caused by other cold water using actions such as using a flushing closestool or opening a cold water faucet can be prevented from passing, the phenomenon of mistakenly igniting a burner of the water heater is eliminated, and a user is more comfortable; more importantly, the utility model can automatically adapt to individual pressure conditions of the pipeline environment of thousands of households, omits complex manual actions such as pressure test detection, calibration and debugging and the like in the installation process, and obviously improves the working efficiency of field installation; the utility model provides a pair of prevent the pipe valve device of cold and hot water cluster each other of automatic adaptation pressure condition is the same with "the cold and hot water pipe connection spare of H type" mounted position, mounting method under the prior art.

On the basis of the first embodiment, in a seventh embodiment, the hydraulic pressure sensing transmission device further includes: a water pressure sensing spring 14;

the water pressure sensing spring 14 is arranged in the pressure pipe barrel 1, one end of the water pressure sensing spring is connected with the barrel wall of the pressure pipe barrel 1, and the other end of the water pressure sensing spring is connected with one end of the piston type water pressure sensing rod 2, which is provided with the sealing piston 5; (see FIG. 1)

In this embodiment, the hydraulic pressure induction spring 14 is used to effectively utilize the length space of the pressure tube 1 and make the pressure tube 1 more sensitive to the response of the pressure being pressed and released;

in practical application, the hydraulic pressure sensing spring 14 may be formed by combining a plurality of sections of springs with different resistance values, such as 1kg, 2kg, 3kg, 4kg, and the like; for example: when the utility model discloses a pressure in the valve body is 2kg, 1 kg's spring can be compressed to the limit, and 3kg, 4kg resistance value's spring is not influenced by pressure, and the spring that takes 2kg resistance value to be responsible for making at this moment makes the pertinence reaction to corresponding pressure change, analogizes to so as can the pipeline environment of the different pressure conditions of automatic adaptation, the utility model relates to a cold and hot water of preventing of automatic adaptation pressure condition is strikeed each other's pipe valve device can realize automatic identification, distinguish instant water flow source that passes through according to the dynamic change of pressure condition in the pipeline environment that the zero cold water heater belongs to independently, can both permit zero cold water heater circulation rivers and normally pass through, can prevent again because of using the bath closestool or opening the interference cluster rivers that other cold water activities produced to pass through, eliminate the phenomenon that the mistake ignites the water heater combustor, let the user more comfortable; more importantly, the utility model can automatically adapt to the individual pressure conditions of the pipeline environment of thousands of households, thereby omitting complex manual actions such as pressure test detection, calibration and debugging and the like in the installation process, and obviously improving the working efficiency of field installation; the utility model provides a pair of prevent the pipe valve device of cold and hot water cluster each other of automatic adaptation pressure condition is the same with "the cold and hot water pipe connection spare of H type" mounted position, mounting method under the prior art.

On the basis of any one of the first to seventh embodiments, in an eighth embodiment, the method further includes: a second cross tube 15, a first tee 16 and a second tee 17;

in this embodiment, the pressure tube 1 is parallel to the first horizontal tube 6, and the first opening is on the same side as the third opening 9 of the pressure tube 4; the second opening 8 faces the fifth opening 19, and the third opening 9 faces the fourth opening 18; in other embodiments, the pressure tube 1 and the first cross tube 6 may be arranged longitudinally;

in practical application, the pipe valve device capable of automatically adapting to pressure conditions and preventing cold and hot water from being connected in series is arranged at a certain water consumption point (the mounting position and the mounting method are the same as those of an H-shaped cold and hot water pipe connecting piece in the prior art, and the pipe valve device is usually farthest away from a water heater) in a pipeline environment governed by a zero-cold water heater, the seventh opening 21 is connected with a cold water pipe leading to a cold water inlet of the zero-cold water heater, and the eighth opening 22 is connected with a cold water inlet of a water consumption point water mixing valve; the tenth opening 24 is connected with a hot water pipe leading to a hot water outlet of a zero-cold-water heater, and the eleventh opening 25 is connected with a hot water inlet of a water point mixing valve;

when the zero cold water heater circulating device operates, the circulating water flow flows from the hot water outlet of the water heater to the cold and hot water series-prevention pipe valve device automatically adapting to the pressure condition, enters the second transverse pipe 15 through the second tee joint 17, the tenth opening 24, the ninth opening 23 and the fifth opening 19, enters the first transverse pipe 6 through the second opening 8, flows out of the third opening 9, enters the first tee joint 16 through the fourth opening 18 and the sixth opening 20, and flows back to the water heater burner for circulating heating through the cold water pipe connected with the seventh opening 21 and leading to the cold water inlet of the water heater; (see FIG. 19)

The utility model relates to a cold and hot water of preventing of automatic adaptation pressure condition is cluster's pipe valve device can realize automatic identification, distinguish instant through water flow source according to the dynamic change of the pressure condition in the pipeline environment under jurisdiction of zero cold water heater independently, can both permit zero cold water heater circulating water to normally pass through, can prevent to use the interference that other cold water actions such as flush toilet or opening cold water tap produced to cluster the rivers and pass through again, eliminate the phenomenon that the mistake ignites the water heater combustor, let the user more comfortable (see figure 20); more importantly, the utility model can automatically adapt to individual pressure conditions of the pipeline environment of thousands of households, omits complex manual actions such as pressure test detection, calibration and debugging and the like in the installation process, and obviously improves the working efficiency of field installation; the pipe valve device which is capable of automatically adapting to pressure conditions and preventing cold and hot water from being connected in series provided by the utility model has the same installation position and installation method as the H-shaped cold and hot water pipe connecting piece in the prior art;

the above is to the pipe valve device that the automatic cold and hot water of preventing who adapts to the pressure condition that the embodiment of the utility model provides provided is cluster each other and has been introduced in detail, to the general technical personnel in this field, according to the utility model discloses the thought, all have the change part on concrete implementation mode and application scope, to sum up, this description content should not be understood as the restriction of the utility model.

Claims

1. A cold and hot water cross-connection prevention pipe valve device automatically adapting to pressure conditions is characterized by comprising: the water pressure sensing transmission device and the water flow stopping device;

the hydraulic pressure sensing transmission device comprises: the device comprises a pressure pipe barrel (1), a piston type water pressure sensing rod (2) and a water pressure water flow linkage rod (3);

the pressure pipe barrel (1) is provided with a first opening (4), one end of the piston type water pressure sensing rod (2) is provided with a sealing piston (5), the sealing piston (5) is slidably arranged in the pressure pipe barrel (1), and the other end of the piston type water pressure sensing rod (2) extends out of the first opening (4);

one end of the hydraulic water flow linkage rod (3) is slidably arranged on the piston type hydraulic pressure sensing rod (2), and the diameter of the hydraulic water flow linkage rod (3) is larger than that of the first opening (4);

the water flow stopping device comprises: the first transverse pipe (6) and the water flow channel stop valve plate (7);

the first transverse pipe (6) is provided with a second opening (8) and a third opening (9);

the water flow channel stop valve plate (7) is arranged in the first transverse pipe (6) in a sliding mode.

2. The pipe valve device for preventing hot and cold water from being connected in series according to claim 1, wherein the water flow stopping means further comprises: a valve plate stroke control spring (10);

the valve plate stroke control spring (10) is arranged in the first transverse pipe (6), one end of the valve plate stroke control spring (10) is connected with one side, facing the third opening (9), of the water flow channel stop valve plate (7), and the other end of the valve plate stroke control spring is connected with the hydraulic water flow linkage rod (3).

3. The pipe valve device for preventing hot and cold water from being connected in series according to claim 1, wherein the water flow stopping means further comprises: a valve plate stroke control rod (11);

the valve plate stroke control rod (11) is arranged in the first transverse pipe (6) and is arranged on one side of the third opening (9), the water pressure water flow linkage rod (3) is arranged between the water flow channel stop valve plates (7), one end of the valve plate stroke control rod (11) is connected with one side of the water flow channel stop valve plates (7), and the other end of the valve plate stroke control rod is connected with the water pressure water flow linkage rod (3).

4. The pipe valve device capable of preventing cold and hot water from being connected in series according to claim 1, wherein a first magnet (12) is arranged on the hydraulic water flow linkage rod (3), and a second magnet (13) is arranged on the water flow channel stop valve plate (7).

5. The tubular valve device for preventing hot and cold water cross-linking according to claim 1, characterized in that said water flow passage stop valve plate (7) is larger than said third opening (9).

6. The tubular valve device for preventing hot and cold water cross-linking according to claim 1, characterized in that said water flow passage stop valve plate (7) is larger than said second opening (8).

7. The pipe valve device for preventing cold and hot water from being connected in series according to claim 1, wherein the hydraulic pressure sensing transmission device further comprises: a water pressure sensing spring (14);

the water pressure sensing spring (14) is arranged in the pressure pipe barrel (1), one end of the water pressure sensing spring is connected with the wall of the pressure pipe barrel (1), and the other end of the water pressure sensing spring is connected with one end, provided with the sealing piston (5), of the piston type water pressure sensing rod (2).

8. The pipe valve device for preventing cold and hot water from being connected in series according to any one of claims 1 to 7, further comprising: a second transverse pipe (15), a first tee joint (16) and a second tee joint (17);

the second transverse pipe (15) is provided with a fourth opening (18) and a fifth opening (19);

the first tee joint (16) is provided with a sixth opening (20), a seventh opening (21) and an eighth opening (22);

the second tee joint (17) is provided with a ninth opening (23), a tenth opening (24) and an eleventh opening (25);

the fourth opening (18) is connected to the sixth opening (20), and the fifth opening (19) is connected to the ninth opening (23);

the hydraulic pressure sensing transmission device and the water flow stopping device are arranged in the second transverse pipe (15).