CN215371137U

CN215371137U - Waterway structure and water purification system

Info

Publication number: CN215371137U
Application number: CN202120076069.8U
Authority: CN
Inventors: 聂姣; 张�杰; 刘玲建
Original assignee: Shenzhen Angel Drinking Water Equipment Co Ltd
Current assignee: Shenzhen Angel Drinking Water Equipment Co Ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-12-31
Anticipated expiration: 2031-01-12

Abstract

The application provides a waterway structure and a water purification system, wherein the water purification system comprises a water purifier, a pipeline machine and the waterway structure; the waterway structure comprises a water pipe, the water pipe is provided with a first water inlet and a first water outlet, the first water inlet is connected with the water purifier, and the first water outlet is connected with the pipeline machine; the dynamic pressure reducing valve can reduce the water pressure in the water pipe to be lower than a first pressure preset value when the water flow of the first water inlet is larger than a flow preset value, and the switch device can be switched on when the inlet pressure of the switch device is reduced to be smaller than a second pressure preset value; the dynamic pressure reducing valve can be used for directly passing water when the water flow of the first water inlet is smaller than a preset flow value, the pressure difference between the two ends is zero, and the switching device can be used for disconnecting the water pipe when the inlet pressure of the switching device is increased to be larger than a third preset pressure value; the first pressure preset value is greater than the second pressure preset value and less than the third pressure preset value. The application of the water route structure, pipeline machine are when using, and the water purifier can not frequently start.

Description

Waterway structure and water purification system

Technical Field

The application belongs to the technical field of water purifiers, and more specifically relates to a waterway structure and a water purification system.

Background

With the development of industrialization, the problem of water pollution is becoming more serious, and in order to ensure healthy and safe domestic water, water purifiers have become an indispensable part of life. In actual use scenes, the pipeline machine is often used as terminal water to be directly connected with a water purifier.

At present, most of water purifiers in the market are controlled by pressure switches, and pipeline machines are generally controlled by floating ball valves. In the use of pipeline machine, as long as pipeline machine flow is less than the play water flow of water purifier, the water purifier will cause frequent start because of pressure variation, and the solenoid valve of water purifier and the life-span of water pump will receive very big influence, and work can also lead to pipeline machine's work unstability moreover like this.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a waterway structure to solve the technical problems that a water purifier is frequently started and a pipeline machine works unstably in the prior art.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: providing a waterway structure, which is used for being connected between a water purifier and a pipeline machine, wherein the waterway structure comprises a water pipe, the water pipe is provided with a first water inlet and a first water outlet, the first water inlet is used for being connected with the water purifier, and the first water outlet is used for being connected with the pipeline machine; a dynamic pressure reducing valve and a switching device are arranged in the water pipe, and the switching device is positioned between the dynamic pressure reducing valve and the first water outlet; the dynamic pressure reducing valve can reduce the water pressure in the water pipe to be lower than a first pressure preset value when the water flow of the first water inlet is larger than a flow preset value, and the switch device can conduct the water pipe when the inlet pressure of the switch device is reduced to be smaller than a second pressure preset value; the dynamic pressure reducing valve can be used for directly passing water when the water flow of the first water inlet is smaller than a preset flow value, the pressure difference between two ends of the dynamic pressure reducing valve is zero, and the switching device can be used for disconnecting the water pipe when the inlet pressure of the switching device is increased to be larger than a third preset pressure value; wherein the first pressure preset value is greater than the second pressure preset value and less than the third pressure preset value.

In a possible embodiment, the dynamic pressure reducing valve comprises:

the method comprises the following steps:

the shell is internally provided with a first cavity and a second cavity which are communicated through a connecting hole; the shell is also provided with a second water inlet and a second water outlet, the second water inlet is communicated with the second cavity, and the second water outlet is communicated with the first cavity;

the sealing element is movably arranged in the first cavity;

the first elastic piece is elastically adjustable and is abutted between the sealing piece and the shell;

the valve core comprises a valve plug and a guide pillar, the valve plug is arranged in the second cavity, and the valve plug can close the connecting hole; the guide post is extendable into the first cavity to abut the seal; a first area of the seal for contact with water in the first chamber is greater than a second area of the valve plug for contact with water in the first chamber;

the second elastic piece is abutted between the valve plug and the shell;

and the pressure relief channel is communicated between the second water inlet and the second water outlet and is used for supplying water with the flow rate lower than the preset flow rate to flow from the second water inlet to the second water outlet when the connecting hole is closed.

In a possible embodiment, the pressure relief channel is a first through hole sequentially penetrating through the valve plug and the guide post.

In a possible embodiment, the sealing element is provided with a first groove and a second groove which are communicated with each other, one end of the guide pillar is inserted into the first groove, the second groove is communicated with the first through hole, and the second groove is communicated with the first cavity.

In a possible embodiment, the pressure relief channel is a second through hole which is arranged beside the connecting hole and is communicated with the first cavity and the second cavity.

In a possible embodiment, the pressure relief channel is a third through hole extending from the water inlet to the water outlet directly on the housing;

or the pressure relief channel is a fourth through hole which is formed in the outer shell and is directly connected to the water outlet through the water inlet.

In a possible embodiment, the valve cartridge comprises:

the inner core is made of a hard material and comprises a blocking section and a guiding section, and the blocking section and the guiding section are integrally connected;

the outer bag is made of soft rubber materials and is coated outside the blocking section; the outer package and the blocking section together form the valve core, and the guide section forms the guide post.

In a possible embodiment, the outer skin is formed outside the inner core by two-shot moulding.

In a possible embodiment, the switching device is a pressure relay or a pressure switch.

The application provides a waterway structure's beneficial effect lies in: the waterway structure that this application embodiment provided, through adorning dynamic relief pressure valve and switching device back to the water pipe in, when the pipeline machine needs large-traffic water supply, the water flow is greater than the flow default in the water pipe, and dynamic relief pressure valve carries out the decompression function, decompresses the pressure of the second delivery port of dynamic relief pressure valve to being less than first pressure default, then switching device's inlet pressure also reduces to being less than second pressure default, and switching device is in the on-state, and the water pipe is the normal water supply of pipeline machine. When the pipeline machine only needs small flow of water, when the water purifier is not needed for supplying water, the flow of water in the water pipe is lower than a preset flow value, the dynamic pressure reducing valve does not perform the pressure reducing function, the pressure difference between two ends of the dynamic pressure reducing valve is zero, water slowly accumulates in the switching device after passing through the dynamic pressure reducing valve, and the switching device is disconnected until the inlet pressure of the switching device is greater than a third preset pressure value. Also be when pipeline machine low discharge water, switching device closes first delivery port, then the pressure of water purifier can not change, so the water purifier just can not frequently start, and the life-span of solenoid valve in the water purifier and water pump also can not receive the influence, simultaneously because be connected between pipeline machine and the water purifier and cut off, the work of pipeline machine also can be more stable.

The application also provides a water purification system, which comprises a water purifier, a pipeline machine and the waterway structure; the water purifier with first water inlet is connected, pipeline machine with first delivery port is connected.

The application provides a water purification system's beneficial effect lies in: the water purification system that this application embodiment provided through the setting of above-mentioned waterway structure for this water inlet system operates steadily, can not appear the problem of frequent start-up.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a water purification system provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of the configuration of the dynamic pressure reducing valve of FIG. 1;

fig. 3 is a partially enlarged schematic view of a portion of the valve core of fig. 2.

Wherein, in the figures, the respective reference numerals:

100. a water purifier; 200. a pipeline machine; 300. a dynamic pressure reducing valve; 310. a valve body; 311. a first chamber; 312. a second chamber; 313. connecting holes; 314. a second water inlet; 315. a second water outlet; 320. a first valve cover; 330. a second valve cover; 331. a convex column; 340. a first elastic member; 350. a second elastic member; 360. a valve core; 361. a valve plug; 362. a guide post; 363. a first through hole; 364. an inner core; 3641. a blocking section; 3642. a guide section; 3643. an external connection section; 365. outsourcing; 370. a seal member; 371. a seal body; 3711. a first groove; 3712. a second groove; 372. a connecting section; 380. a sealing cover; 390. an adjusting block; 391. a pipe claw; 392. a gland; 400. a switching device; 500. a water pipe; 510. a first water inlet; 520. a first water outlet.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

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

Referring to fig. 1, a waterway structure provided in an embodiment of the present application will now be described. The waterway structure is used for connecting between the purified water outlet end of the water purifier 100 and the pipeline machine 200, so as to solve the problem that the water purifier 100 is frequently started when the pipeline machine 200 is used, and the problem that the pipeline machine 200 is unstable in operation.

The waterway structure comprises a water pipe 500, the water pipe 500 is provided with a first water inlet 510 and a first water outlet 520, the first water inlet 510 is used for being connected with the water purifier 100, and the first water outlet 520 is used for being connected with the pipeline machine 200; the water pipe 500 is provided with a dynamic pressure reducing valve 300 and a switching device 400, the dynamic pressure reducing valve 300 is disposed near the water purifier 100, and the switching device 400 is disposed between the dynamic pressure reducing valve 300 and the first water outlet 520.

The dynamic pressure reducing valve 300 can reduce the water pressure in the water pipe 500 to be lower than a first pressure preset value when the water flow rate of the first water inlet 510 is greater than a flow preset value; the water flow rate of the dynamic pressure reducing valve 300 at the first water inlet 510 is smaller than the preset flow rate value, so that water can directly pass through the dynamic pressure reducing valve 300, and the pressure difference between two ends of the dynamic pressure reducing valve 300 is zero. The switching device 400 can conduct the water pipe 500 when the inlet pressure thereof is reduced to be less than a second pressure preset value; the switching device 400 is capable of disconnecting the water pipe 500 when its inlet pressure rises above a third pressure preset value, the first pressure preset value being greater than the second pressure preset value and less than the third pressure preset value. In the present application, the preset flow rate is 200ml/min, the preset second pressure is 0.12MPa, and the preset third pressure is 0.3MPa, that is, when the inlet pressure of the switching device 400 is reduced to less than 0.12MPa, the switching device 400 is in the on state, and when the inlet pressure of the switching device 400 is increased to more than 0.3MPa, the switching device 400 is in the off state. The first pressure preset value is 0.12MPa-0.3MPa, namely when the water flow of the first water inlet 510 is more than 200ml/min, the dynamic pressure reducing valve 300 is a common pressure reducing valve, has a pressure reducing effect, and can reduce the pressure of the second water outlet 315 of the dynamic pressure reducing valve 300 to be lower than 0.12MPa-0.3 MPa; when the water flow rate of the first water inlet 510 is lower than 200ml/min, the dynamic pressure reducing valve 300 has no pressure reducing effect, the dynamic pressure reducing valve 300 is a simple connecting pipe, water directly passes through the dynamic pressure reducing valve 300, and the pressure difference between two ends of the dynamic pressure reducing valve 300 is zero. It is understood that, in other embodiments of the present application, the above-mentioned preset flow rate value may also be changed according to a change of an actual water consumption of the pipeline machine 200, for example, the preset flow rate value may be 150ml/min, 180ml/min, 220ml/min, or 250ml/min, and further, according to an actual pressure setting of the switch device 400, the second preset pressure value may also be 0.08MPa, 0.1MPa, 0.14MPa, or 0.18MPa, and the third preset pressure value may also be 0.22MPa, 0.26MPa, or 0.34MPa, and is not limited herein.

The utility model provides a waterway structure, through adorning dynamic relief pressure valve 300 and switching device 400 in water pipe 500, when pipeline machine 200 needs large-traffic water supply, water flow is greater than 200ml/min in water pipe 500, dynamic relief pressure valve 300 carries out the decompression function, decompress the pressure of second delivery port 315 of dynamic relief pressure valve 300 to be less than 0.12MPa-0.3MPa, then switching device 400's inlet pressure also reduces to be less than 0.12MPa, switching device 400 is in the on-state, water pipe 500 normally supplies water for pipeline machine 200. When the pipeline machine 200 only needs a small flow of water, and the water purifier 100 is not needed to supply water, the flow of water in the water pipe 500 is lower than 200ml/min, the dynamic pressure reducing valve 300 does not perform the pressure reducing function, the pressure difference between two ends of the dynamic pressure reducing valve 300 is zero, water slowly accumulates in the switch device 400 after passing through the dynamic pressure reducing valve 300 until the inlet pressure of the switch device 400 is increased to be more than 0.3MPa, and the switch device 400 is switched off. That is, when the pipeline machine 200 uses water at a small flow rate, the switching device 400 closes the first water outlet 520, so that the pressure of the water purifier 100 is not changed, the water purifier 100 is not frequently started, the service lives of the electromagnetic valve and the water pump in the water purifier 100 are not affected, and the pipeline machine 200 is more stable in operation because the pipeline machine 200 is disconnected from the water purifier 100.

Referring to fig. 2 and 3, the dynamic pressure reducing valve 300 includes a housing, a first elastic member 340, a sealing member 370, a second elastic member 350, and a valve element 360.

A first cavity 311 and a second cavity 312 are formed inside the shell, and the first cavity 311 is communicated with the second cavity 312 through a connecting hole 313; the shell is also provided with a second water inlet 314 and a second water outlet 315, the second water inlet 314 is communicated with the second cavity 312, and the second water outlet 315 is communicated with the first cavity 311.

The sealing member 370 is movably arranged in the first cavity 311, the elasticity of the first elastic member 340 is adjustable, two ends of the first elastic member 340 are respectively abutted between the sealing member 370 and the shell, and the sealing member 370 can slide in the first cavity 311 under the elastic driving of the first elastic member 340; the valve plug 360 includes a valve plug 361 and a guide post 362, the valve plug 361 is disposed in the second chamber 312, two ends of the second elastic member 350 are abutted between the valve plug 361 and the housing, and the valve plug 361 can close the connection hole 313 under the abutting of the second elastic member 350; the guide post 362 can extend through the connection hole 313 into the first cavity 311 to abut the seal 370. Wherein a first area of the seal 370 for contact with water in the first chamber 311 is greater than a second area of the valve plug 361 for contact with water in the first chamber 311.

It should be noted that, after the adjustment, the first elastic force of the first elastic member 340 is greater than the second elastic force of the second elastic member 350, and then the first elastic force of the first elastic member 340 acting on the valve core 360 through the sealing member 370 is greater than the second elastic force of the second elastic member 350 on the valve core 360, and the valve plug 361 opens the connection hole 313 to a certain degree; after the water in the second chamber 312 enters the first chamber 311, because the first area of the sealing member 370, which is used for contacting the water in the first chamber 311, is larger than the second area of the valve plug 361, which is used for contacting the water in the first chamber 311, the pressure of the water on the sealing member 370 can counteract part of the first elastic force, so that the valve plug 361 moves upwards under the action of the second elastic force, and the opening degree of the connecting hole 313 is reduced; when the opening degree of the connection hole 313 is decreased, the flow of water from the second chamber 312 into the first chamber 311 is decreased, the pressure of the water on the sealing member 370 is decreased, and the opening degree of the valve plug 361 is slowly increased by the first elastic force and the second elastic force, so that the opening degree of the connection hole 313 is maintained in a dynamic balance, and the pressure difference between the second water inlet 314 and the second water outlet 315 is also in the dynamic balance. In addition, since the elasticity of the first elastic member 340 is adjustable, the first elastic force is adjustable, so that the balance opening degree of the connection hole 313 is adjustable, and further, the pressure difference between the second water inlet 314 and the second water outlet 315 is adjustable.

In this application, the dynamic pressure reducing valve 300 further includes a pressure relief channel, the pressure relief channel is communicated between the second water inlet 314 and the second water outlet 315, and the pressure relief channel is used for supplying water with a flow rate lower than the preset flow rate to flow from the second water inlet 314 to the second water outlet 315 when the connection hole 313 is closed. When the second water outlet 315 of the dynamic pressure reducing valve 300 is closed, the pressure of the water in the first chamber 311 is low, so that the valve plug 361 closes the connection hole 313, and the water in the second chamber 312 cannot enter the first chamber 311.

In practical applications, when the pipeline machine 200 opens a large flow of water, the dynamic pressure reducing valve 300 works normally, and the dynamic pressure reducing valve 300 functions to reduce the water pressure output by the water purifier 100 to the closing pressure of the switching device 400, so that the switching device 400 is normally opened, and the water in the water purifier 100 is normally supplied to the pipeline machine 200; when the pipeline machine 200 opens water with small flow, the pressure at the outlet end of the dynamic pressure reducing valve 300 is too small, and the connecting hole 313 is closed, so that the switching device 400 is frequently started; this application is through setting up the pressure release passageway between second water inlet 314 and second delivery port 315, when connecting hole 313 closes, still there is the water of low discharge to flow to second delivery port 315 from second water inlet 314, water accumulates the disconnection value that reaches switching device 400 until the pressure of switching device 400 department in switching device 400 department, then switching device 400 disconnection, also be the water purification delivery port of water purifier 100 in the off-state, thereby avoid the problem of water purifier 100 frequent start-up, make pipeline machine 200's use can not exert an influence to the life-span of solenoid valve and water pump in the water purifier, and can also guarantee pipeline machine 200 job stabilization.

Specifically, referring to fig. 2, the housing includes a valve body 310, a first valve cap 320 and a second valve cap 330. The first chamber 311, the second chamber 312, the connection hole 313, the second water inlet 314 and the second water outlet 315 are formed on the valve body 310, the first chamber 311 penetrates through a first end of the valve body 310, and the second chamber 312 penetrates through a second end of the valve body 310. Specifically, the first chamber 311 is located above the second chamber 312, the first end is the upper end of the valve body 310, the second end is the lower end of the valve body 310, and the second water inlet 314 and the second water outlet 315 are located on the left side and the right side of the valve body 310, respectively. The first bonnet 320 is installed at a first end of the valve body 310, the first elastic member 340 is disposed inside the first bonnet 320, the sealing member 370 is disposed in the first cavity 311 and has one end extending into the first bonnet 320 to be connected with the first elastic member 340; the second bonnet 330 is sealingly mounted to the second end of the valve body 310, and the second resilient member 350 is disposed within the second bonnet 330.

Referring to fig. 2, a sealing cover 380 is further connected between the first bonnet 320 and the valve body 310, and a center hole is formed in the center of the sealing cover 380. The sealing member 370 includes a sealing body 371 and a connecting section 372, the sealing body 371 is slidably disposed in the first cavity 311 and located inside the sealing cover 380, the connecting section 372 is connected to the sealing body 371, and the connecting section 372 penetrates through the central hole from the first cavity 311 and extends into the first valve cover 320 to be connected to the first elastic member 340.

The first valve cap 320 is further provided with an adjusting block 390, the periphery of the adjusting block 390 is provided with external threads, the inner wall of the first valve cap 320 is provided with internal threads, the adjusting block 390 is connected to the first valve cap 320 through threads, and two ends of the first elastic member 340 are respectively connected with the adjusting block 390 and the connecting section 372. When the position of the adjusting block 390 is fixed, the first elastic force of the first elastic member 340 is a determined value, and when the position of the adjusting block 390 in the first valve cover 320 is adjusted by rotating the adjusting block 390, the compressed length of the first elastic member 340 is changed, so that the purpose of adjusting the first elastic force of the first elastic member 340 is achieved, and the pressure reduction value of the dynamic pressure reduction valve 300 is further adjusted.

Referring to fig. 2, the second valve cover 330 is connected to the valve body 310 via a sealing ring. The second valve cover 330 is provided with a convex column 331, and the convex column 331 is inserted into the valve body 310 to form a plug-in fit with the valve body 310. A receiving groove is formed in the center of the protruding pillar 331, one end of the second elastic member 350 is received in the receiving groove and fixed in the receiving groove, and the other end of the second elastic member 350 is connected with the valve plug 361.

Specifically, the first elastic member 340 and the second elastic member 350 are both springs.

Referring to fig. 2, a pipe claw 391 and a gland 392 are respectively disposed at the second water inlet 314 and the second water outlet 315 of the valve body 310, the pipe claw 391 is used for connecting with an external water pipe, and the gland 392 is used for sealing the pipe claw 391 on the valve body 310.

In a specific embodiment, when the water flow at the second water inlet 314 of the dynamic pressure reducing valve 300 is less than 200ml/min, the water pressure in the first cavity 311 is low, the pressure of the water pressure acting on the sealing member 370 plus the second elastic force of the second elastic member 350 is balanced with the first elastic force of the first elasticity, the connection hole 313 is closed, at this time, the water at the second water inlet 314 can only flow to the second water outlet 315 through the pressure relief channel, and the pressure difference between the second water inlet 314 and the second water outlet 315 is zero. It is understood that, in other embodiments of the present application, when the first elastic force of the first elastic element 340 and the second elastic force of the second elastic element 350 are changed, the closing threshold of the connection hole 313 is different, and the range of the preset flow rate value is different.

In a specific embodiment, referring to fig. 2, the pressure relief channel is a first through hole 363 sequentially passing through the valve plug 361 and the guide post 362, the first through hole 363 is disposed at a central position of the guide post 362 and sequentially passing through the valve plug 361 and the guide post 362 along a vertical direction, the first through hole 363 can communicate the first cavity 311 with the second cavity 312, so that water with a flow rate lower than a preset flow rate in the second water inlet 314 can flow to the second water outlet 315 through the first through hole 363.

In a specific embodiment, referring to fig. 3, the sealing member 370 is formed with a first slot 3711 and a second slot 3712, the first slot 3711 is communicated with the second slot 3712, and the first slot 3711 and the second slot 3712 are both communicated with the first cavity 311. When the water-saving device is installed, one end of the guide pillar 362 is inserted into the first slot 3711, and the second slot 3712 is connected to the first through hole 363 of the guide pillar 362, so that the water flowing from the second water inlet 314 to the first through hole 363 via the second cavity 312 can flow into the first cavity 311 via the second slot 3712, and finally flows to the second water outlet 315.

Specifically, referring to fig. 3, the first slot 3711 and the second slot 3712 both extend from the sealing member 370 toward a side of the first cavity 311 toward the first elastic member 340, and the depth of the second slot 3712 is greater than that of the first slot 3711, so that the second slot 3712 can communicate with the first through hole 363 of the guide pillar 362 after the guide pillar 362 is inserted into the first slot 3711. It is understood that in other embodiments of the present application, when one end of the first through hole 363 is located at the side of the guide post 362, and one end of the first through hole 363 directly communicates with the first cavity 311, the second slot 3712 on the sealing member 370 is not required; or when one end of the first through hole 363 directly communicates with the first slot 3711, the outer diameter of the first slot 3711 may be set to be larger than the outer diameter of the guide pillar 362, which is not limited herein.

In another embodiment of the present application, the pressure relief channel is a second through hole disposed beside the connection hole 313 and communicating the first cavity 311 and the second cavity 312, that is, the second through hole may be located anywhere as long as the first cavity 311 is communicated with the second cavity 312.

In another embodiment of the present application, the pressure relief channel is a third through hole extending from the second water inlet 314 to the second water outlet 315 directly on the valve body 310, that is, the third through hole does not pass through the first cavity 311 and the second cavity 312, but a third through hole is formed at another position of the valve body 310, for example, at the front side or the rear side of the valve body 310, one end of the third through hole is communicated with the second water inlet 314, and the other end of the third through hole is communicated with the second water outlet 315, and similarly, when the connecting hole 313 is closed, a small flow of water from the second water inlet 314 can be guided to the second water outlet 315.

In addition, the pressure relief channel may be disposed outside the valve body 310, the pressure relief channel is a fourth through hole directly connected to the second water outlet 315 from the second water inlet 314 outside the valve body 310, that is, a connecting pipe is disposed outside the valve body 310, the fourth through hole penetrates through the connecting pipe, one end of the connecting pipe is communicated with the second water inlet 314, and the other end of the connecting pipe is communicated with the second water outlet 315, so that the effect of communicating the second water inlet 314 with the second water outlet 315 can be achieved.

In one embodiment, referring to FIG. 3, the valve plug 361 includes an inner core 364 and an outer cladding 365. The inner core 364 is made of hard material, the inner core 364 comprises a blocking section 3641 and a guiding section 3642, and the blocking section 3641 is integrally connected with the guiding section 3642; the outer bag 365 is made of a soft rubber material, the outer bag 365 is wrapped outside the blocking section 3641, the outer bag 365 and the blocking section 3641 together form a valve core 360, and the guide section 3642 forms the guide post 362. This application is through dividing into two parts of inner core 364 and outsourcing 365 with valve plug 361, and inner core 364 adopts hard material to make to can guarantee case 360 structural strength, do benefit to the butt between case 360 and the sealing member 370, outsourcing 365 adopts the flexible glue material to make, the terminal surface butt of the case 360 of being convenient for and connecting hole 313 is with sealed connecting hole 313.

Specifically, the inner core 364 may be made of hard materials such as metal or hard plastic, i.e., the blocking section 3641 and the guiding section 3642 are integrally formed of hard materials such as metal.

In a specific embodiment, the outer layer 365 is formed outside the inner core 364 by a two-shot molding method, that is, after the inner core 364 is integrally formed by a hard material, the inner core 364 is used as a mold core, and then the outer layer 365 is injection molded outside the inner core 364 by a two-shot molding method, so that the entire valve core 360 is an integral connecting structure. It is understood that, in other embodiments of the present application, the outer cover 365 may be wrapped around the inner core 364 by interference fit, fastening, or gluing, which is not limited herein.

In a specific embodiment, the inner core 364 further includes an external connection section 3643, the external connection section 3643 is connected to one end of the blocking section 3641 away from the guide section 3642, and the external connection section 3643, the blocking section 3641 and the guide section 3642 are sequentially connected and integrally formed. The outer layer 365 is respectively wrapped outside the blocking section 3641 and the external section 3643, and a portion of the outer layer 365 wrapped on the external section 3643 can be connected with the second elastic member 350.

In an exemplary embodiment, referring to fig. 1, the switch device 400 is a pressure relay. The pressure relay is a hydraulic electric conversion element which opens and closes an electric contact by using the pressure of liquid. When the pressure of the system reaches the set value of the pressure relay, an electric signal is sent out, so that electric elements (such as an electromagnet, a motor, a time relay, an electromagnetic clutch and the like) act, the oil circuit is decompressed and reversed, the execution elements realize sequential action (opening or closing the liquid circuit) or the motor is closed to stop the system to work, and the safety protection effect is achieved. It is understood that in other embodiments of the present application, the switch device 400 may also be a pressure switch, which is normally in a non-hydraulic state, and when the pressure rises to a certain area value or drops to a certain area value, the internal micro switch is turned on or off to send out an electrical signal.

Referring to fig. 1, the present application further provides a water purification system, which includes a water purifier 100, a pipeline machine 200 and the above waterway structure, wherein the waterway structure is connected between the water purifier 100 and the pipeline machine 200, specifically, the water purifier 100 is connected to the first water inlet 510, and the pipeline machine 200 is connected to the first water outlet 520. The water purification system of this application is through the setting of above-mentioned waterway structure for this system of intaking operates steadily, can not appear the problem of frequent start-up.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A waterway structure is used for being connected between a water purifier and a pipeline machine and is characterized by comprising a water pipe, wherein the water pipe is provided with a first water inlet and a first water outlet, the first water inlet is used for being connected with the water purifier, and the first water outlet is used for being connected with the pipeline machine; a dynamic pressure reducing valve and a switching device are arranged in the water pipe, and the switching device is positioned between the dynamic pressure reducing valve and the first water outlet; the dynamic pressure reducing valve can reduce the water pressure in the water pipe to be lower than a first pressure preset value when the water flow of the first water inlet is larger than a flow preset value, and the switch device can conduct the water pipe when the inlet pressure of the switch device is reduced to be smaller than a second pressure preset value; the dynamic pressure reducing valve can be used for directly passing water when the water flow of the first water inlet is smaller than a preset flow value, the pressure difference between two ends of the dynamic pressure reducing valve is zero, and the switching device can be used for disconnecting the water pipe when the inlet pressure of the switching device is increased to be larger than a third preset pressure value; the first pressure preset value is larger than the second pressure preset value and smaller than the third pressure preset value;

the dynamic pressure reducing valve includes:

the sealing element is movably arranged in the first cavity;

the second elastic piece is abutted between the valve plug and the shell;

2. The waterway structure of claim 1, wherein the pressure relief channel is a first through hole that sequentially penetrates through the valve plug and the guide post.

3. The waterway structure of claim 2, wherein the sealing member defines a first groove and a second groove that are in communication with each other, one end of the guide post is inserted into the first groove, the second groove is in communication with the first through hole, and the second groove is in communication with the first cavity.

4. The waterway structure of claim 1, wherein the pressure relief channel is a second through hole disposed beside the connection hole and communicating the first chamber and the second chamber.

5. The waterway structure of claim 1, wherein the pressure relief channel is a third through-hole extending from the inlet to the outlet directly on the housing;

6. The waterway structure of any of claims 1-5, wherein the valve cartridge comprises:

7. The waterway structure of claim 6, wherein the outer covering is formed over the inner core by a two-shot molding process.

8. The waterway structure of claim 1, wherein the switch device is a pressure relay or a pressure switch.

9. A water purification system comprising a water purifier, a pipeline machine and a waterway structure according to any one of claims 1 to 8; the water purifier with first water inlet is connected, pipeline machine with first delivery port is connected.