CN218845203U - Pneumatic control multi-path high-pressure water valve assembly - Google Patents

Abstract

The utility model discloses a pneumatic control multichannel high pressure water valve assembly, including pedestal and a plurality of control valve. The base body is provided with a water inlet channel. One end of the control valve is a water receiving port, and the other end of the control valve is a water outlet. The water receiving port is communicated with the water inlet channel. The control valve has a valve core, and the middle part of the valve core is provided with an outer convex ring. The inner cavity of the control valve is provided with a first inner convex ring and a second inner convex ring. The two ends of the valve core are seamlessly connected with the first inner convex ring and the second inner convex ring, and the outer convex ring is seamlessly connected with the inner cavity wall. The first air chamber is defined by the outer convex ring and the first inner convex ring, and the second air chamber is defined by the second inner convex ring. The control valve is provided with a first air inlet communicated with the first air chamber, a second air inlet communicated with the second air chamber, an end face sealing element and a rebound element. The valve core is driven by the rebound piece and the airflow introduced into the first air chamber to abut against the end face sealing piece to be closed, or driven by the airflow introduced into the second air chamber to leave the end face sealing piece to be opened. And the water valve is connected with the electromagnetic valve to control the on-off of the first air inlet hole and the second air inlet hole, so that the valve is automatically opened and closed.

Description

Pneumatic control multi-path high-pressure water valve assembly

Technical Field

The utility model relates to a water valve technical field particularly, relates to a pneumatic control multichannel high pressure water valve assembly.

Background

Water valves in the current market are mainly manual, are complex to operate, cause large labor intensity of personnel, and have a series of problems of poor quality stability, easy water leakage, frequent valve clamping, high requirement on water quality and the like in most products, thereby causing frequent shutdown and high maintenance and replacement cost.

SUMMERY OF THE UTILITY MODEL

Based on the technical problems, the inventor aims to provide a water valve which can automatically control the on-off, improves the quality stability, is not easy to leak water, is not easy to clamp the valve and has low requirement on water quality, and develops the following technical scheme.

A pneumatic control multi-path high-pressure water valve assembly comprises a seat body and a plurality of control valves; the seat body is provided with a water inlet channel; each control valve is provided with an inner cavity, one end of the inner cavity is a water receiving port, and the other end of the inner cavity is a water outlet; the water receiving port of each control valve is communicated with the water inlet channel. Each control valve comprises a valve core arranged in the inner cavity; the outer side wall of the middle part of the valve core is provided with an outer convex ring; the control valve is provided with a first inner collar and a second inner collar on the inner wall of the inner cavity; the outer side walls of two ends of the valve core are in seamless butt joint with the first inner convex ring and the second inner convex ring respectively, and the outer convex ring is in seamless butt joint with the inner wall of the inner cavity, so that the outer convex ring and the first inner convex ring form a first air chamber, and the outer convex ring and the second inner convex ring form a second air chamber. And a first air inlet communicated with the first air chamber and a second air inlet communicated with the second air chamber are arranged on the outer wall of the control valve. The control valve further comprises an end face seal and a resilient member; the end face seal is mounted in the inner cavity; the rebound piece is arranged in the first air chamber, and two ends of the rebound piece are respectively abutted against the outer convex ring and the first inner convex ring. The two ends of the valve core are a first port and a second port which are communicated with each other; the first port is communicated with the water receiving port, and the second port faces the end face sealing piece; the valve core can be driven by the rebound piece and/or the airflow introduced into the first air chamber, so that the second port is abutted against the end face sealing piece to be completely closed, or can be driven by the airflow introduced into the second air chamber to leave the end face sealing piece to be opened, and then is communicated to the water outlet after being opened.

As a further improvement of the pneumatic control multi-path high-pressure water valve assembly, the pneumatic control multi-path high-pressure water valve assembly further comprises an electromagnetic valve which is connected to the first air inlet hole and the second air inlet hole and is configured to be capable of closing the first air inlet hole and the second air inlet hole simultaneously or opening only one of the air inlet holes.

As a further improvement of the pneumatic control multi-path high-pressure water valve assembly, the control valve comprises a water outlet pull rod, a cylinder body, a sealing guide sleeve and a water outlet tooth sleeve. The water outlet pull rod penetrates through and is fixed on the seat body; a water passing cavity is arranged in the water outlet pull rod; one end of the water passing cavity is the water receiving port which is positioned in the water inlet channel, and the other end of the water passing cavity is communicated with the cylinder body. The cylinder body is provided with a through cavity, and two ends of the cylinder body are respectively connected with the water outlet tooth socket and the water outlet pull rod penetrating out of the seat body in a seamless mode; one end of the cylinder body close to the water outlet pull rod is provided with the first inner convex ring. The sealing guide sleeve is fixedly arranged at one end of the cavity body close to the water outlet tooth socket; the sealing guide sleeve and the inner wall of the cavity form seamless connection to form the second inner convex ring.

As a further improvement of the pneumatic control multi-path high-pressure water valve assembly, the sealing guide sleeve and the valve core form seamless connection through two sealing rings; the position of the sealing guide sleeve between the two sealing rings is provided with an overflow inner hole penetrating through the sealing guide sleeve, the position of the cylinder body opposite to the overflow inner hole is provided with an overflow outer hole penetrating through the cylinder body, and the overflow inner hole is communicated with the overflow outer hole to form an overflow hole.

As a further improvement of the pneumatic control multi-path high-pressure water valve assembly, the two sealing rings between the sealing guide sleeve and the valve core are respectively a Glare ring and a copper sleeve embedded with an O-shaped ring. The first inner convex ring and the valve core form seamless connection through another Gray ring and a polytetrafluoroethylene ring.

As a further improvement of the pneumatic control multi-path high-pressure water valve assembly, one end of the water outlet pull rod connected with the cylinder body is provided with an external thread, the cylinder body is provided with a corresponding internal thread, and the water outlet pull rod is connected with the cylinder body through a thread; the control valve also comprises a sealing ring sleeve which is sleeved on the water outlet pull rod penetrating out of the seat body; and O-shaped rings are embedded in two end faces of the sealing ring sleeve and respectively abutted against the outer walls of the cylinder body and the seat body to form seamless connection.

As a further improvement of the pneumatic control multi-path high-pressure water valve assembly, the water outlet tooth socket comprises an integrally formed annular main structure and a transverse plate, a communicating cavity is formed inside the annular main structure, and the outlet of the communicating cavity is the water outlet; the transverse plate is installed at an inlet of the conducting cavity, one end of the transverse plate is integrally connected and formed with the annular main structure, and the other end of the transverse plate is not in contact with the annular main structure to form a water passing channel. The end face sealing element is fixed on one surface of the transverse plate, which is back to the water outlet; and water flowing out of the second port of the valve core sequentially passes through the end face sealing piece and the water passing channel and finally flows out of the water outlet.

As a further improvement of the pneumatic control multi-path high-pressure water valve assembly, the transverse plate is provided with a penetrating inverted T-shaped installation cavity; the water outlet tooth socket also comprises an inverted T-shaped fixing pin and a rivet; the fixing pin is arranged in the inverted T-shaped mounting cavity in a matched mode, and the upper end of the fixing pin is fixedly connected to the transverse plate through the rivet; the end face sealing element is sleeved on the bottom face of the fixing pin.

As a further improvement of the pneumatic control multi-path high-pressure water valve assembly, the inverted T-shaped fixing pin comprises a middle vertical shaft and a round bottom plate; the upper periphery of the round bottom plate is provided with an annular groove. The inverted T-shaped mounting cavity comprises a middle vertical cavity and a disc cavity; the middle part or the upper part of the disc cavity in the thickness direction is also provided with an annular convex groove protruding towards the periphery; the bottom of the disc cavity in the thickness direction is also obliquely protruded with an annular oblique angle groove towards the periphery. The end face sealing piece is matched, extends into the annular groove, the annular convex groove and the annular oblique angle groove, and wraps the side face and the bottom face of the fixing pin in an inverted T shape.

As a further improvement of the pneumatic control multi-path high-pressure water valve assembly, the end face sealing piece is made of nitrile rubber; the seat body is made of aviation aluminum; the valve core is chrome-plated stainless steel; the cylinder body the play water facing, go out the water pull rod sealed guide pin bushing with the fixed pin is stainless steel.

This pneumatic control multichannel high pressure water valve assembly can be through being connected with electrical element, and the automation of switch is realized to the electric control input high pressure draught, adopts the switch of pneumatic control water valve to improve the stability of quality, through the opening and shutting of high pressure draught and resilience piece control case and terminal surface sealing member for the water valve is difficult for leaking, difficult card valve, and low to the requirement of quality of water.

The product also has the following beneficial effects:

1. the mutual open-close structure of the valve core and the end face sealing element forms a valve, the requirement on water quality is low, and water leakage and damage are not easy to occur.

2. One valve has the advantages of multifunctional control, compact structure, small volume and suitability for various occasions.

3. The single control valve is a unit, can be independently replaced and maintained when being independently damaged, and is convenient to replace and easy to judge the problem.

4. Beautiful and unique, the material is mainly selected from fine cast stainless steel and aviation aluminum (seat body), and the stainless steel does not rust.

5. The product is provided with an overflow hole, so that the pneumatic element can be protected from being damaged when the sealing element fails.

6. The valve body is mainly connected by screw threads, so that the sealing element is convenient to replace, and the requirement on the skill of a replacing person is low.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. It is understood that the following drawings only show some embodiments of the invention and are therefore not to be considered limiting of its scope, for a person skilled in the art to which it pertains, from which other related drawings can be derived without inventive effort.

Fig. 1 is a partially sectioned overall structure diagram of a pneumatic control multi-path high-pressure water valve assembly.

Fig. 2 is a top view of the pneumatically controlled multiple high pressure water valve assembly of fig. 1.

FIG. 3 isbase:Sub>A right side view, in cross-section, of the pneumatically controlled multi-way high pressure water valve assembly of FIG. 1 taken along plane A-A.

Fig. 4 is an enlarged view of the area B of the pneumatically controlled multi-way high pressure water valve assembly of fig. 1.

Reference numerals are as follows: the water inlet valve comprises a base body 1, a control valve 2, a water inlet channel 101, a water inlet 102, a plug 103, a water receiving port 201, a water outlet 202, a valve core 21, a valve core cavity 203, an outer convex ring 204, a first inner convex ring 205, a second inner convex ring 206, a first air chamber 207, a second air chamber 208, a first air inlet 209, a second air inlet 210, an end face sealing piece 211, a rebound piece 212, a first port 213, a second port 214, a water outlet pull rod 22, a cylinder body 23, a water outlet tooth socket 24, a water passing cavity 215, an overflow hole 216, a Glare ring 217, a copper sleeve 218, a polytetrafluoroethylene ring 219, a sealing ring socket 220, a transverse plate 221, a water passing channel 222, a fixing pin 223, a rivet 224, a riveting spigot 225, an anti-falling spigot 226 and a sealing lip 227.

Detailed Description

Some embodiments of the pneumatic control multi-way high-pressure water valve assembly of the present invention are described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, a pneumatic control multi-way high-pressure water valve assembly includes a seat body 1 and a plurality of control valves 2, for example, six control valves 2. The base body 1 can be processed by aviation aluminum materials, so that the base body has good processability and anti-rusting property. The pneumatic control multi-way high-pressure water valve assembly in fig. 1 is integrally sectioned for the control valves 2 at two ends, and the middle four control valves 2 are sectioned at the lower half part.

As shown in fig. 1, the base 1 has a water inlet channel 101, the right end of the water inlet channel 101 is a water inlet 102, and the left end is closed by a plug 103.

From the overall function, each control valve 2 has an inner cavity, one end of which is a water receiving port 201, and the other end of which is a water outlet port 202. The water receiving port 201 of each control valve 2 is communicated with the water inlet channel 101. Each control valve 2 includes a spool 21 mounted in the internal cavity.

The valve core 21 is provided with a valve core cavity 203 with the upper end and the lower end penetrating through, the outer side wall of the middle part of the valve core 21 is provided with an outer convex ring 204, and the outer wall of the outer convex ring 204 is also embedded with an O-shaped ring which is used for forming seamless connection with the inner cavity wall of the control valve 2. The inner walls of the upper end and the lower end of the inner cavity are respectively provided with a first inner collar 205 and a second inner collar 206. Alternatively, the first inner collar 205 may be integrally formed with the inner cavity wall of the control valve 2, and has a firm structure. Alternatively, the second inner collar 206 may be a separate mechanism and may be seamlessly secured to the inner chamber wall of the control valve 2 to facilitate disassembly and assembly. For example, the second inner collar 206 is a sealing sleeve that snaps onto the lumen and is seamlessly joined to the lumen wall by two O-rings.

The outer side walls of the two ends of the valve core 21 are respectively connected with the first inner collar 205 and the second inner collar 206 of the control valve 2 in a seamless mode. The outer collar 204 is seamlessly connected to the inner chamber wall of the control valve 2. The valve core 21 can be made of 304 stainless steel, and the outer surface of the valve core is polished and plated with hard chromium, so that the valve core has high surface smoothness and wear resistance.

The valve core 21 can be driven, so that the outer side walls at two ends of the valve core 21 and the outer convex ring 204 in the middle of the valve core 21 respectively slide seamlessly relative to the first inner convex ring 205, the second inner convex ring 206 and the inner wall of the inner cavity (i.e. the middle section of the inner cavity wall).

As shown in fig. 3, a first plenum 207 is formed between the outer collar 204 and the first inner collar 205, and a second plenum 208 is formed between the outer collar 204 and the second inner collar 206. The control valve 2 is further provided with a first air inlet hole 209 and a second air inlet hole 210, wherein the first air inlet hole 209 is communicated with the first air chamber 207, and the second air inlet hole 210 is communicated with the second air chamber 208.

The control valve 2 further comprises a face seal 211 and a resilient member 212, and the resilient member 212 may be a spring (or a compression spring). The end face sealing piece 211 is fixedly arranged in the inner cavity, and the end face sealing piece 211 can be made of nitrile rubber with certain flexibility.

The two ends of the spool chamber 203 are respectively marked as a first port 213 and a second port 214. The first port 213 is communicated with the water receiving port 201. The second port 214 faces the face seal 211. The second port 214 of the valve core 21 and the end face sealing member 211 can be driven to open and close with each other, so as to form a valve (or called valve port) capable of switching water flow.

The resilient member 212 is mounted in the first air chamber 207 with both ends abutting against the outer collar 204 and the first inner collar 205, respectively. In a first state where the first intake port 209 and the second intake port 210 are not vented, the resilient member 212 naturally extends to push the outer protruding ring 204, so that the outer protruding ring 204 moves away from the first inner protruding ring 205, that is, the valve spool 21 moves toward the end face seal 211, the second port 214 of the valve spool 21 abuts on the end face seal 211, and thus the valve port is in a completely closed state, and the water flow is blocked.

In the second state, the valve core 21 can be driven by the resilient member 212 and the high-pressure air flow into the first air chamber 207, so that the second port 214 abuts against the end-face seal 211 to be completely closed.

In the third state, the valve element 21 can be driven by the airflow introduced into the second air chamber 208, so that the outer convex ring 204 is away from the second inner convex ring 206, and the valve element 21 is away from the end face seal 211 to open a valve port, which is communicated to the water outlet 202.

The pneumatic control multi-way high-pressure water valve assembly further comprises solenoid valves (not shown in the figure) which are connected to the first air inlet hole 209 and the second air inlet hole 210 and can simultaneously close the first air inlet hole 209 and the second air inlet hole 210 or open only one of the air inlet holes.

The mounting mode of the pneumatic control multi-path high-pressure water valve assembly is as follows: the base body 1 is installed and fixed on the frame, the first air inlet 209 and the second air inlet 210 are connected with the air pipe and are used in cooperation with the electromagnetic valve, the water inlet channel 101 of the base body 1 is provided with a water inlet, the water inlet is connected with the output pipe of the high-pressure water pump, and the water outlets 202 of the control valves 2 are connected with the output pipelines.

The pneumatic control multi-path high-pressure water valve assembly is connected with the electromagnetic valve, and can electrically control the on-off of the first air inlet 209 and the second air inlet 210, so that the valve is automatically opened and closed.

The control valve 2 comprises an outlet pull rod 22, a cylinder body 23, the sealing guide sleeve (i.e. the second inner collar 206) and an outlet tooth socket 24. The water outlet pull rod 22 passes through and is fixed on the seat body 1. A water passing cavity 215 is arranged inside the water outlet pull rod 22, one end of the water passing cavity 215 is the water receiving port 201 which is positioned in the water inlet channel 101, and the other end is communicated with the cylinder body 23. As shown in fig. 1, the water receiving opening 201 of the water outlet pull rod 22 includes two vertical strip-shaped inlets which are arranged in a staggered manner and are perpendicular to each other, and both of the inlets are immersed in the water inlet passage 101 of the seat body 1. The two inlets are both communicated with the water passing cavity 215 of the water outlet pull rod 22, and water flows entering through the two inlets in a mutually perpendicular mode enable the water to be fully disturbed and mixed in the water passing cavity 215, air in the water passing cavity 215 is easily taken away, the water is fully filled in the water passing cavity 215, and the water flow is stable.

The cylinder 23 has a through cavity including a first air chamber 207 and a second air chamber 208. Two ends of the cylinder body 23 are respectively connected with the water outlet tooth socket 24 and the upper section of the water outlet pull rod 22 penetrating through the seat body 1 in a seamless manner (threaded connection and O-shaped ring). The first inner ring 205 is arranged on the inner side of one end of the cylinder body 23 close to the water outlet pull rod 22. The sealing guide sleeve (i.e., the second inner collar 206) is fixedly mounted within the cavity adjacent one end of the outlet mouthpiece 24. The sealing boot and the inner wall of the cavity form a seamless connection as the second inner collar 206.

Specifically, the sealing guide sleeve and the valve core 21 (specifically, the inner wall of the cavity of the valve core 21) form a seamless connection through two sealing rings. The sealing guide sleeve is arranged between the two sealing rings, and an overflow inner hole penetrating through the sealing guide sleeve is further arranged. The outer cylinder 23 is provided with an overflow outer hole penetrating the wall of the cylinder 23 at a position opposite to the overflow inner hole, and the overflow inner hole and the overflow outer hole are communicated to form an overflow hole 216. The overflow hole 216 has a safety protection effect on pneumatic elements, prevents the second air inlet 210 from feeding water and flowing into the air compression device, has a sealing performance early warning effect on the sealing ring, and the overflow hole 216 discharges water to indicate that the sealing ring is damaged and needs to be replaced.

The two sealing rings between the sealing guide sleeve (as the second inner ring 206) and the valve core 21 are respectively a Glare ring 217 and a copper sleeve 218 with an O-shaped ring embedded on the inner side. The O-shaped ring is made of nitrile rubber. The copper bush 218 is made of aluminum bronze sheet material, has high strength and wear resistance, and is used as a supporting guide bush of the valve core 21. The copper sleeve 218 functions and advantages include: sealing and guiding, wear resistance, better high-temperature corrosion resistance and oxidation resistance.

The first inner collar 205 and the valve element 21 are connected seamlessly by another GREEN ring 217 and a guide seal ring. The guide sealing ring can be a polytetrafluoroethylene ring 219, has the advantages of acid and alkali resistance, various organic solvents resistance, good self-lubricating property, high temperature resistance and extremely low friction coefficient, and can be used as a guide sliding block. The valve core 21 can slide smoothly along the copper sleeve 218 and the teflon ring 219. The glary ring 217+ O-shaped ring + guide sealing ring is matched for use, and the sealing property is also improved.

One end of the water outlet pull rod 22 connected with the cylinder body 23 is provided with an external thread, the cylinder body 23 is provided with a corresponding internal thread, and the water outlet pull rod 22 is connected with the cylinder body 23 through the thread. The control valve 2 further comprises a sealing ring sleeve 220 which is sleeved on the water outlet pull rod 22 penetrating out of the seat body 1; and O-shaped rings are embedded in two end faces of the sealing ring sleeve 220 and are respectively abutted against the outer walls of the cylinder body 23 and the seat body 1 to form seamless connection.

The water outlet facing 24 comprises an integrally formed annular main structure and a transverse plate 221. The inside of the annular main structure is provided with a through cavity, and the outlet of the through cavity is the water outlet 202. The transverse plate 221 is installed at the inlet of the conducting cavity, one end of the transverse plate 221 is integrally connected and formed with the annular main structure, and the other end of the transverse plate 221 is not in contact with the annular main structure to form a water passing channel 222. The end face sealing member 211 is fixed to a surface of the horizontal plate 221 facing away from the water outlet 202. The water flowing out from the second port 214 of the valve element 21 passes through the end face seal 211 and the water passage 222 in sequence, and finally flows out of the water outlet 202.

The transverse plate 221 is provided with a penetrating inverted T-shaped mounting cavity; the outlet mouthpiece 24 also includes an inverted T-shaped anchor pin 223 and rivet 224, and the face seal 211. The fixing pin 223 is fittingly installed in the installation cavity of the inverted T shape, and the upper end is fixedly connected to the transverse plate 221 by the rivet 224. The end face seal 211 is fitted to the bottom surface of the fixing pin 223.

As shown in fig. 4, the fixing pin 223 of the inverted T shape includes a middle vertical axis and a round bottom plate. The upper periphery of the round bottom plate is provided with an annular groove. The inverted T-shaped mounting cavity comprises a middle vertical cavity and a disc cavity. The middle part or the upper part of the disk cavity in the thickness direction is also provided with an annular convex groove protruding towards the periphery; the bottom of the disc cavity in the thickness direction is also obliquely protruded with an annular oblique angle groove towards the periphery. The end face sealing piece 211 is fittingly extended into the annular groove, the annular convex groove and the annular oblique angle groove, and wraps the side face and the bottom face of the fixing pin 223 in an inverted T shape, so that the end face sealing piece 211 filled into the annular groove is made into a rivet fastening spigot 225, the end face sealing piece 211 filled into the annular convex groove is made into an anti-falling spigot 226, and the end face sealing piece 211 filled into the annular oblique angle groove is made into a sealing lip 227. The end face sealing member 211 and the fixing pin 223 are firmly attached to each other by the caulking seam 225 and the anti-dropping seam 226, and are not easily dropped. The retaining stop 226 and the seal lip 227 are provided so that the face seal 211 does not arch when the valve body 21 is pressed against the face seal 211. The provision of the sealing lip 227 provides a better sealing of the face seal 211 with the fixing pin 223.

The cylinder body 23, the water outlet tooth socket 24, the water outlet pull rod 22, the sealing guide sleeve and the fixing pin 223 can be all made of 304 stainless steel, so that the cylinder body has the characteristics of wear resistance and rust resistance.

The three working modes of the pneumatic control multi-path high-pressure water valve assembly are as follows: high-pressure water is introduced into the water inlet 102 and enters each control valve 2 through the water inlet channel 101 of the seat body 1, the normal state is a low-pressure closing state (pre-tightened by a spring), the first air inlet is ventilated when the high-pressure closing state is realized, the second air inlet is not ventilated, and the valve closing state is the valve closing state that the valve core 21 is tightly abutted against the end face sealing element 211; when the valve works, the first air inlet is not ventilated, the second air inlet is ventilated, the spring is compressed, and the valve core 21 leaves the end face sealing piece 211 and is in a valve opening state.

The above-described embodiments are merely some embodiments, rather than all embodiments, of the present invention and the detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.

Claims (10)

1. The utility model provides a pneumatic control multichannel high pressure water valve assembly which characterized in that: comprises a seat body and a plurality of control valves; the seat body is provided with a water inlet channel; each control valve is provided with an inner cavity, one end of the inner cavity is a water receiving port, and the other end of the inner cavity is a water outlet; the water receiving port of each control valve is communicated with the water inlet channel;

each control valve comprises a valve core arranged in the inner cavity; the outer side wall of the middle part of the valve core is provided with an outer convex ring; the control valve is provided with a first inner convex ring and a second inner convex ring on the inner wall of the inner cavity; the outer side walls of two ends of the valve core are respectively in seamless butt joint with the first inner convex ring and the second inner convex ring, the outer convex ring is in seamless butt joint with the inner wall of the inner cavity, so that the outer convex ring and the first inner convex ring form a first air chamber, and the outer convex ring and the second inner convex ring form a second air chamber;

a first air inlet communicated with the first air chamber and a second air inlet communicated with the second air chamber are arranged on the outer wall of the control valve;

the control valve further comprises an end face seal and a resilient member; the end face seal is mounted in the inner cavity; the rebound piece is arranged in the first air chamber, and two ends of the rebound piece are respectively abutted against the outer convex ring and the first inner convex ring;

the two ends of the valve core are a first port and a second port which are communicated with each other; the first port is communicated with the water receiving port, and the second port faces the end face sealing piece; the valve core can be driven by the rebound piece and/or the airflow introduced into the first air chamber, so that the second port is abutted against the end face sealing piece to be completely closed, or can be driven by the airflow introduced into the second air chamber to leave the end face sealing piece to be opened, and then is communicated to the water outlet after being opened.

2. The pneumatically controlled multi-channel high pressure water valve assembly of claim 1, wherein: the pneumatic control multi-path high-pressure water valve assembly further comprises an electromagnetic valve which is connected with the first air inlet hole and the second air inlet hole and is configured to be capable of closing the first air inlet hole and the second air inlet hole simultaneously or opening only one of the air inlet holes.

3. The pneumatically controlled multi-channel high pressure water valve assembly of claim 1, wherein: the control valve comprises a water outlet pull rod, a cylinder body, a sealing guide sleeve and a water outlet tooth socket;

the water outlet pull rod penetrates through and is fixed on the seat body; a water passing cavity is arranged in the water outlet pull rod; one end of the water passing cavity is the water receiving port and is positioned in the water inlet channel, and the other end of the water passing cavity is communicated with the cylinder body;

the cylinder body is provided with a through cavity, and two ends of the cylinder body are respectively connected with the water outlet tooth socket and the water outlet pull rod penetrating out of the seat body in a seamless mode; one end of the cylinder body close to the water outlet pull rod is provided with the first inner convex ring;

the sealing guide sleeve is fixedly arranged at one end of the cavity body close to the water outlet tooth socket; the sealing guide sleeve and the inner wall of the cavity form seamless connection to form the second inner convex ring.

4. The pneumatically controlled multi-channel high pressure water valve assembly of claim 3, wherein: the sealing guide sleeve and the valve core form seamless connection through two sealing rings; the sealing guide sleeve is arranged between the two sealing rings, an overflow inner hole penetrating through the sealing guide sleeve is arranged at the position of the sealing guide sleeve, an overflow outer hole penetrating through the cylinder body is arranged at the position of the cylinder body opposite to the overflow inner hole, and the overflow inner hole is communicated with the overflow outer hole to form an overflow hole.

5. The pneumatically controlled multi-channel high pressure water valve assembly of claim 4, wherein: the two sealing rings between the sealing guide sleeve and the valve core are respectively a Glare ring and a copper sleeve embedded with an O-shaped ring;

and the first inner convex ring and the valve core form seamless connection through another GREEN ring and a polytetrafluoroethylene ring.

6. The pneumatically controlled multi-channel high pressure water valve assembly of claim 3, wherein: the water outlet pull rod is connected with one end of the cylinder body, an external thread is arranged on the end, connected with the cylinder body, of the water outlet pull rod, the cylinder body is provided with a corresponding internal thread, and the water outlet pull rod is connected with the cylinder body through a thread; the control valve also comprises a sealing ring sleeve which is sleeved on the water outlet pull rod penetrating out of the seat body; and O-shaped rings are embedded in two end faces of the sealing ring sleeve and respectively abutted against the outer walls of the cylinder body and the seat body to form seamless connection.

7. The pneumatically controlled multi-channel high pressure water valve assembly of claim 3, wherein: the water outlet tooth socket comprises an annular main structure and a transverse plate which are integrally formed, a communicating cavity is formed inside the annular main structure, and the outlet of the communicating cavity is the water outlet; the transverse plate is arranged at the inlet of the conducting cavity, one end of the transverse plate is integrally connected with the annular main structure to form a whole, and the other end of the transverse plate is not in contact with the annular main structure to form a water passing channel;

the end face sealing element is fixed on one surface of the transverse plate, which is back to the water outlet; and water flowing out of the second port of the valve core sequentially passes through the end face sealing piece and the water passing channel and finally flows out of the water outlet.

8. The pneumatically controlled multi-channel high pressure water valve assembly of claim 7, wherein: the transverse plate is provided with a penetrating inverted T-shaped mounting cavity; the water outlet tooth socket also comprises an inverted T-shaped fixing pin and a rivet; the fixing pin is arranged in the inverted T-shaped mounting cavity in a matched mode, and the upper end of the fixing pin is fixedly connected to the transverse plate through the rivet; the end face sealing element is sleeved on the bottom face of the fixing pin.

9. The pneumatically controlled multi-channel high pressure water valve assembly of claim 8, wherein: the fixing pin in the inverted T shape comprises a middle vertical shaft and a round bottom plate; the upper periphery of the round bottom plate is provided with an annular groove;

the inverted T-shaped mounting cavity comprises a middle vertical cavity and a disc cavity; the middle part or the upper part of the disk cavity in the thickness direction is also provided with an annular convex groove protruding towards the periphery; the bottom of the disc cavity in the thickness direction is also obliquely protruded with an annular oblique angle groove towards the periphery;

the end face sealing piece is matched with and extends into the annular groove, the annular convex groove and the annular oblique angle groove, and wraps the side face and the bottom face of the fixing pin in the inverted T shape.

10. The pneumatically controlled multiplex high pressure water valve assembly of claim 8 or claim 9, wherein: the end face sealing piece is made of nitrile rubber; the seat body is made of aviation aluminum; the valve core is chrome-plated stainless steel; the cylinder body the play water facing, go out the water pull rod sealed guide pin bushing with the fixed pin is stainless steel.

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