WO2024098583A1

WO2024098583A1 - Integrated water valve, water system, and work machine

Info

Publication number: WO2024098583A1
Application number: PCT/CN2023/077169
Authority: WO
Inventors: 吴昊; 尹力; 牟东; 邱国庆; 佟巍; 王文斌
Original assignee: 三一重型装备有限公司
Priority date: 2022-11-07
Filing date: 2023-02-20
Publication date: 2024-05-16
Also published as: CN218408637U

Abstract

Provided are an integrated water valve, a water system, and a work machine. The integrated water valve comprises a hydraulic control water valve (100), a hydraulic control valve (300), and a transition block (200). The transition block (200) is connected between the hydraulic control water valve (100) and the hydraulic control valve (300), so that the hydraulic control water valve (100), the transition block (200), and the hydraulic control valve (300) are connected into an integrated structure. An oil control port (C) is provided on the hydraulic control water valve (100). A first oil inlet (P1), a first oil return port (T1), a first working oil port (A1), and a second working oil port (B1) are provided on the hydraulic control valve (300). At least an oil inlet channel (210), an oil return channel (220), and a first working channel (230) are provided in the transition block (200). The oil control port (C) is communicated with the first working oil port (A1) by means of the first working channel (230). The first oil inlet (P1) is communicated with an external pilot oil source by means of the oil inlet channel (210), and the first oil return port (T1) is communicated with a hydraulic oil tank by means of the oil return channel (220). The integrated water valve has a more compact structure, achieves simpler and faster connection, and saves the mounting space.

Description

Integrate water valves, water systems and operating machinery

This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on November 7, 2022, with application number "202222956647.4" and application name "Integrated Water Valve, Water System and Operating Machinery", all contents of which are incorporated by reference in this application.

Technical Field

The present application relates to the technical field of water valves, and in particular to an integrated water valve, a water system and an operating machine.

Background technique

In water systems, especially intelligently controlled water systems, the on-off of the water system is generally controlled by water valves, which generally include manually controlled ball valves and hydraulically controlled hydraulic water valves.

At present, the hydraulically controlled water valve and the hydraulic control valve are generally installed in a dispersed manner, that is, the hydraulically controlled water valve and the hydraulic control valve are fixed separately, and the hydraulic control valve and the hydraulically controlled water valve are connected through a connecting pipe.

In the process of realizing the present application, the inventors found that at least the tubular installation in the prior art has the problems of high space requirements and complex pipeline layout.

Summary of the invention

The present application provides an integrated water valve, a water system and an operating machine, which are used to solve the defects in the prior art that the hydraulically controlled water valve and the hydraulic control valve are installed separately and connected through a connecting pipe, resulting in large space occupation and complex pipeline layout. The hydraulically controlled water valve and the hydraulic control valve are integrated through a transition block to reduce the effect of space occupation.

The present application provides an integrated water valve, comprising: a hydraulically controlled water valve, the hydraulically controlled water valve being provided with a control oil port; a hydraulic control valve, the hydraulic control valve being provided with a first oil inlet port, a first oil return port, a first working oil port, and a second working oil port; a transition block, the transition block being connected between the hydraulically controlled water valve and the hydraulic control valve, the transition block being provided with at least an oil inlet channel, an oil return channel, and a first working channel. The oil inlet passage is communicated with the first oil inlet port, the oil return passage is communicated with the first oil return port, and the first working passage is communicated with the control oil port and the first working oil port.

Preferably, a second working channel is further provided in the transition block, one end of the second working channel is communicated with the second working oil port, and the other end of the second working channel is communicated with the outside of the transition block.

Preferably, at least one third working channel is further provided in the transition block, one end of the third working channel is communicated with the first working channel or the second working channel, and the other end of the third working channel is communicated with the outside of the transition block.

Preferably, the transition block is detachably connected between the hydraulically controlled water valve and the hydraulic control valve.

Preferably, the hydraulically controlled water valve and the transition block as well as the hydraulic control valve and the transition block are connected by bolts.

Preferably, the hydraulic control valve is a two-position four-way reversing valve, and the two-position four-way reversing valve is an electromagnetic reversing valve.

Preferably, a plug is provided at one end of the second working channel away from the hydraulic control valve and at one end of the third working channel away from the first working channel.

Preferably, seals are provided between the control oil port and an end of the first working channel close to the hydraulically controlled water valve, between an end of the oil inlet channel close to the hydraulic control valve and the first oil inlet, between an end of the oil return channel close to the hydraulic control valve and the first oil return port, between an end of the first working channel close to the hydraulic control valve and the first working oil port, and between an end of the second working channel close to the hydraulic control valve and the second working oil port.

The present application also provides a water system, comprising the integrated water valve as described in any one of the above items.

The present application also provides a working machine, comprising an integrated water valve as described in any one of the above items or comprising The water system described above.

The integrated water valve provided by the present application comprises a hydraulically controlled water valve, a hydraulically controlled valve and a transition block, wherein the transition block is connected between the hydraulically controlled water valve and the hydraulically controlled valve, so that the hydraulically controlled water valve, the transition block and the hydraulically controlled valve are connected as an integrated structure. A control oil port is provided on the hydraulically controlled water valve, and when there is oil pressure in the control oil port, the hydraulically controlled water valve communicates with the waterway connected to the hydraulically controlled water valve, and when there is no oil pressure in the control oil port, the hydraulically controlled water valve cuts off the waterway connected to the hydraulically controlled water valve. The hydraulically controlled valve is provided with a first oil inlet, a first oil return port, a first working oil port and a second working oil port. At least an oil inlet channel, an oil return channel and a first working channel are provided in the transition block. The control oil port of the hydraulically controlled water valve is communicated with the first working oil port of the hydraulically controlled valve through the first working channel of the transition block. The first oil inlet of the hydraulically controlled valve is communicated with an external pilot oil source through the oil inlet channel of the transition block, and the first oil return port of the hydraulically controlled valve is communicated with the hydraulic oil tank through the oil return channel of the transition block. During use, when the first oil inlet of the hydraulic control valve is connected to the first working oil port, the pilot oil enters the control oil port of the hydraulic control water valve through the oil inlet channel of the transition block, the first oil inlet of the hydraulic control valve, the first working oil port of the hydraulic control valve, and the first working channel of the transition block, and oil pressure is established at the control oil port. The hydraulic control water valve opens and connects the waterway connected to the hydraulic control water valve. When the first oil return port of the hydraulic control valve is connected to the first working oil port, the pilot oil at the control oil port flows back to the hydraulic oil tank through the first working channel of the transition block, the first working oil port of the hydraulic control valve, the first oil return port of the hydraulic control valve, and the oil return channel of the transition block. There is no oil pressure at the control oil port of the hydraulic control water valve, and the hydraulic control water valve is closed to cut off the waterway connected to the hydraulic control water valve. The integrated water valve provided by the present application uses a transition block to replace the pipeline used to connect the hydraulic control valve and the hydraulic control water valve in the prior art. The hydraulic control valve, the hydraulic control water valve, and the transition block are integrated together, making the structure more compact, the connection simpler and faster, and saving installation space.

Furthermore, in the water system and operating machinery provided in the present application, since they have the integrated water valve as described above, they have the same advantages as described above.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the present application or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic structural diagram of an integrated water valve according to an embodiment of the present application;

FIG2 is a schematic diagram of an integrated water valve according to an embodiment of the present application;

Reference numerals:

100: hydraulically controlled water valve; 200: transition block; 210: oil inlet channel; 220: oil return channel; 230: first working channel; 240: second working channel; 250: third working channel; 300: hydraulic control valve; _P1 : first oil inlet port; _T1 : first oil return port; _A1 : first working oil port; _B1 : second working oil port; _P2 : second oil inlet port; _T2 : second oil return port; c: control oil port.

Detailed ways

In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

The integrated water valve, water system and operating machine of the present application are described below in conjunction with Figures 1 to 2.

In one embodiment of the present application, an integrated water valve is provided, including a hydraulically controlled water valve 100 , a transition block 200 and a hydraulic control valve 300 .

In this embodiment, the hydraulically controlled water valve 100 may include a valve body, a valve core, a spring and an adjusting screw. The valve body is provided with a water inlet and a water outlet, the valve core is slidably connected to the valve body, the valve core can slide between a first position and a second position, and a water flow channel penetrating the valve core is provided on the valve core. When the valve core is located at the first position, the valve core cuts off the communication between the water inlet and the water outlet, and when the valve core is located at the second position, the water flow channel on the valve core connects the water inlet and the water outlet.

The adjusting screw is screwed on the valve body and is located near one end of the valve core. When the adjusting screw rotates, it moves in and out of the valve body in the same direction as the sliding direction of the valve core. The spring is arranged between the adjusting screw and the valve core. The pressure applied by the spring to the valve core is adjusted by rotating the adjusting screw.

A control oil port c is provided at the end of the valve body near the other end of the valve core. When there is no oil pressure in the control oil port c, the spring pushes the valve core to move to the end near the control oil port c. At this time, the valve core is in the first position, and the water inlet and the water outlet are blocked by the valve core. When there is oil pressure in the control oil port c and the oil pressure is greater than the elastic force of the spring, the valve core is pushed to the end near the adjusting screw. At this time, the valve core is in the second position, and the water flow channel on the valve core connects the water inlet and the water outlet.

The hydraulic control valve 300 may be an electromagnetic reversing valve, and preferably, the hydraulic control valve 300 may be a two-position four-way reversing valve. The hydraulic control valve 300 is provided with a first oil inlet _P1 , a first oil return port _T1 , a first working oil port _A1 , and a second working oil port _B1 . When the valve core of the two-position four-way reversing valve is in the right position, the first oil inlet _P1 is communicated with the second working oil port _B1 , and the first working oil port _A1 is communicated with the first oil return port _T1 . When the valve core of the two-position four-way reversing valve is in the left position, the first oil inlet _P1 is communicated with the first working oil port _A1 , and the second working oil port _B1 is communicated with the first oil return port _T1 .

The transition block 200 is provided with at least an oil inlet channel 210, an oil return channel 220 and a first working channel 230 that penetrate the transition block 200. When the transition block 200 is connected between the hydraulically controlled water valve 100 and the hydraulic control valve 300, the end of the oil inlet channel 210 of the transition block 200 close to the hydraulic control valve 300 is communicated with the first oil inlet port _P1 of the hydraulic control valve 300, and the end of the oil inlet channel 210 of the transition block 200 away from the hydraulic control valve 300 is provided with a second oil inlet port _P2 , and the second oil inlet port _P2 is used to communicate with an external pilot oil source. The end of the oil return channel 220 of the transition block 200 close to the hydraulic control valve 300 is communicated with the first oil return port _T1 of the hydraulic control valve 300, and the end of the oil return channel 220 of the transition block 200 away from the hydraulic control valve 300 is provided with a second oil return port _T2 , and the second oil return port _T2 is used to communicate with the hydraulic oil tank. The first working channel 230 on the transition block 200 is communicated between the first working oil port _A1 of the hydraulic control valve 300 and the control oil port c of the hydraulically controlled water valve 100.

Since only one first working channel 230 is provided in the transition block 200 to connect the control oil port c of the hydraulically controlled water valve 100 and the first working oil port _A1 of the hydraulic control valve 300, the second working oil port _B1 of the hydraulic control valve 300 is in an idle state. To avoid oil leakage from the second working oil port _B1 , the second working oil port _B1 can be blocked.

The integrated water valve provided in the present application can achieve the effect of automatic opening and closing of the water channel.

When the hydraulically controlled water valve 100 needs to be opened, the valve core of the two-position four-way reversing valve is controlled to move to the left position. At this time, the second oil inlet _P2 of the transition block 200, the oil inlet channel 210 of the transition block 200, the first oil inlet _P1 of the hydraulic control valve 300, the first working oil port _A1 of the hydraulic control valve 300, the first working channel 230 of the transition block 200, and the control oil port c of the hydraulically controlled water valve 100 are connected. The pilot oil flows to the control oil port c of the hydraulically controlled water valve 100 through the above-mentioned connected path. When the oil pressure in the control oil port c is greater than the elastic force of the spring, the pilot oil pushes the valve core of the hydraulically controlled water valve 100 to move to the second position, so that the water flow channel in the valve core of the hydraulically controlled water valve 100 is connected to the water inlet and outlet of the hydraulically controlled water valve 100, so that the water path is connected.

When the hydraulically controlled water valve 100 needs to be closed, the valve core of the two-position four-way reversing valve is controlled to move to the right position. At this time, the second oil inlet _P2 of the transition block 200, the oil inlet channel 210 of the transition block 200, the first oil inlet _P1 of the hydraulic control valve 300, and the second working oil port _B1 of the hydraulic control valve 300 are connected, but at this time the second working oil port B1 is idle and blocked, so oil cannot be supplied through the above path. The control oil port c of the hydraulically controlled water valve 100, the first working channel 230 of the transition block 200, the first working oil port _A1 of the hydraulic control valve 300, the first oil return port _T1 of the hydraulic control valve 300, and the oil return channel 220 of the transition block 200 are connected. It is connected to the second oil return port _T2 of the transition block 200, and the pilot oil in the control oil port c of the hydraulically controlled water valve 100 flows back to the hydraulic oil tank through the above path, and the pressure is released at the control oil port c. The spring pushes the valve core of the hydraulically controlled water valve 100 back to the first position, and the valve core cuts off the connection between the water inlet and the water outlet of the hydraulically controlled water valve 100.

The integrated water valve provided in the present application uses a transition block 200 to realize the integrated connection between the hydraulic control valve 300 and the hydraulically controlled water valve 100, and establishes a connection between the hydraulic control valve 300 and the hydraulically controlled water valve 100 by arranging an oil inlet channel 210, an oil return channel 220 and a first working channel 230 in the transition block 200. Compared with the method in the prior art in which the hydraulically controlled water valve 100 and the hydraulic control valve 300 are installed separately and the hydraulically controlled water valve 100 and the hydraulic control valve 300 are connected by a connecting pipe, the integrated water valve provided in the present application is more compact in structure, occupies less space, and does not require the arrangement of connecting pipes.

Furthermore, in one embodiment of the present application, a second working channel 240 is further provided in the above-mentioned transition block 200. The second working channel 240 serves as a backup channel, and one end of the second working channel 240 close to the hydraulic control valve 300 is communicated with the second working oil port _B1 of the hydraulic control valve 300. When the second working channel 240 is not in use, the end of the second working channel 240 away from the hydraulic control valve 300 can be blocked with a plug. When the second working channel 240 needs to be used, the plug can be removed, and the end of the second working channel 240 away from the hydraulic control valve 300 is communicated with the newly added first working valve.

Furthermore, in one embodiment of the present application, at least one third working channel 250 is further provided in the above-mentioned transition block 200, and the third working channel 250 also serves as a spare channel. One end of the third working channel 250 is communicated with the first working channel 230, and can also be communicated with the second working channel 240, and one end of the third working channel 250 away from the first working channel 230 is communicated with the outside of the transition block 200. When the third working channel 250 is not in use, a plug can be used to block one end of the third working channel 250 away from the first working channel 230 or away from the second working channel 240, and when the third working channel 250 is in use, the plug can be removed, and one end of the third working channel 250 away from the first working channel 230 or away from the second working channel 240 is communicated with the newly added second working valve.

Preferably, in one embodiment of the present application, the first working valve may also be the hydraulically controlled water valve. In this case, the integrated water valve includes two hydraulically controlled water valves, both of which are connected to the transition block 200. Before connection, the plug corresponding to the second working channel 240 on the transition block 200 is removed. After connection, the end of the second working channel 240 away from the hydraulic control valve 300 is connected to the control oil port c of the newly added hydraulically controlled water valve.

At this time, the control oil ports c of the two hydraulically controlled water valves are respectively connected to the first working channel 230 and the second working channel 240. The hydraulically controlled water valve 100 connected to the first working channel 230 can be called the first hydraulically controlled water valve, and the hydraulically controlled water valve 100 connected to the second working channel 240 can be called the second hydraulically controlled water valve.

When the valve core of the hydraulic control valve 300 is in the right position, the control oil port c of the first hydraulically controlled water valve, the first working channel 230 of the transition block 200, the first working oil port _A1 of the hydraulic control valve 300, the first oil return port _T1 of the hydraulic control valve 300, the oil return channel 220 of the transition block 200, and the second oil return port _T2 of the transition block 200 are connected in sequence, the control oil port c of the first hydraulically controlled water valve returns oil and releases pressure, and the first hydraulically controlled water valve is closed.

The control oil port c of the second hydraulically controlled water valve 100, the second working channel 240 of the transition block 200, the second working oil port _B1 of the hydraulic control valve 300, the first oil inlet _P1 of the hydraulic control valve 300, the oil inlet channel 210 of the transition block 200, and the second oil inlet _P2 of the transition block 200 are connected in sequence. At this time, the pilot oil provided by the pilot oil source can enter the control oil port c of the second hydraulically controlled water valve through the above path, so that the second hydraulically controlled water valve is in a conducting state.

When the valve core of the hydraulic control valve 300 is in the left position, the control oil port c of the first hydraulically controlled water valve, the first working channel 230 of the transition block 200, the first working oil port _A1 of the hydraulic control valve 300, the first oil inlet _P1 of the hydraulic control valve 300, the oil inlet channel 210 of the transition block 200, and the second oil inlet _P2 of the transition block 200 are connected in sequence. At this time, the pilot oil provided by the pilot oil source can enter the control oil port c of the first hydraulically controlled water valve through the above path, so that the first hydraulically controlled water valve is in a conducting state.

The control oil port c of the second hydraulically controlled water valve, the second working channel 240 of the transition block 200, the hydraulic control The second working oil port _B1 of the valve 300, the first oil return port _T1 of the hydraulic control valve 300, the oil return channel 220 of the transition block 200, and the second oil return port _T2 of the transition block 200 are connected in sequence. At this time, the control oil port c of the second hydraulically controlled water valve is depressurized and the second hydraulically controlled water valve is in a closed state.

With this connection mode, no matter the valve core of the hydraulic control valve 300 is located at the left position or the right position, the effect of one hydraulically controlled water valve 100 being closed and the other hydraulically controlled water valve 100 being conducted can be achieved.

Preferably, in one embodiment of the present application, the second working valve may also be the hydraulically controlled water valve 100, which may be referred to as the third hydraulically controlled water valve. The third hydraulically controlled water valve is connected to the transition block 200. Before connection, the plug blocking the end of the third working channel 250 away from the first working channel 230 or away from the second working channel 240 is removed. When the third hydraulically controlled water valve is connected to the transition block 200, the control oil port c of the third hydraulically controlled water valve is connected to the end of the third working channel 250 away from the first working channel 230 or away from the second working channel 240.

Taking the third working channel 250 and the first working channel 230 as an example, when in use, when the first oil inlet _P1 of the hydraulic control valve 300 is connected to the first working oil port _A1 , the pilot oil is supplied to the first working channel 230 and the third working channel 250 of the transition block 200 through the second oil inlet _P2 of the transition block 200, the oil inlet channel 210 of the transition block 200, the first oil inlet _P1 of the hydraulic control valve 300, and the first working oil port _A1 of the hydraulic control valve 300. At this time, the first hydraulically controlled water valve connected to the first working channel 230 of the transition block 200 and the third hydraulically controlled water valve connected to the third working channel 250 of the transition block 200 are both in a conducting state.

On the contrary, when the first oil return port _T1 of the hydraulic control valve 300 is connected to the first working oil port _A1 , the pilot oil in the control oil ports c of the first hydraulically controlled water valve and the third hydraulically controlled water valve 100 is refluxed and pressure-released through the first working channel 230 of the transition block 200, the third working channel 250, the first working oil port _A1 of the hydraulic control valve 300, the first oil return port _T1 of the hydraulic control valve 300, the oil return channel 220 of the transition block 200, and the second oil return port _T2 of the transition block 200, and the first hydraulically controlled water valve and the third hydraulically controlled water valve are in a closed state at the same time.

In a preferred embodiment of the present application, the hydraulically controlled water valve 100 and the transition block 200 and the hydraulic The hydraulic control valve 300 and the transition block 200 are both connected in a detachable manner, for example, they can be connected by bolts. The detachable connection method can facilitate the replacement of the hydraulic control water valve 100 and the hydraulic control valve 300.

In addition, the embodiments of the hydraulically controlled water valve 100 and the hydraulically controlled valve 300 are merely exemplary and do not limit the scope of protection of the present application. The hydraulically controlled water valve 100 mentioned above may also be other types of hydraulically controlled water valves 100. Similarly, the hydraulically controlled valve 300 mentioned above may also be other types of hydraulically controlled valves 300.

In a preferred embodiment of the present application, seals are provided between the control oil port and the end of the first working channel close to the hydraulic control water valve, between the end of the oil inlet channel close to the hydraulic control valve and the first oil inlet, between the end of the oil return channel close to the hydraulic control valve and the first oil return, between the end of the first working channel close to the hydraulic control valve and the first working oil port, and between the end of the second working channel close to the hydraulic control valve and the second working oil port. The above-mentioned seals may be sealing gaskets, which can prevent oil leakage between the hydraulic control water valve and the transition block and between the hydraulic control valve and the transition block.

The present application also provides a water system, which can be, but is not limited to, a water system for a coal mining machine or a roadheader. The water system is provided with the integrated water valve as described above, and therefore has the same advantages as described above.

The present application also provides an operating machine, which may be, but is not limited to, a coal mining machine or a tunneling machine. The operating machine is provided with the integrated water valve as described above or the water system as described above, and therefore has the same advantages as described above.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

An integrated water valve, comprising:

A hydraulically controlled water valve (100), wherein the hydraulically controlled water valve (100) is provided with a control oil port (c);

A hydraulic control valve (300), wherein the hydraulic control valve (300) is provided with a first oil inlet (P 1 ), a first oil return port (T 1 ) and a first working oil port (A 1 );

A transition block (200) is connected between the hydraulically controlled water valve (100) and the hydraulic control valve (300). At least an oil inlet channel (210), an oil return channel (220) and a first working channel (230) are provided in the transition block (200). The oil inlet channel (210) is communicated with the first oil inlet port ( P1 ), the oil return channel (220) is communicated with the first oil return port ( T1 ), and the first working channel (230) is communicated with the control oil port (c) and the first working oil port ( A1 ).
The integrated water valve according to claim 1, wherein a second working channel (240) is further provided in the transition block (200), a second working oil port ( B1 ) is provided on the hydraulic control valve (300), one end of the second working channel (240) is communicated with the second working oil port ( B1 ), and the other end of the second working channel (240) is communicated with the outside of the transition block (200).
The integrated water valve according to claim 2, wherein at least one third working channel (250) is further provided in the transition block (200), one end of the third working channel (250) is connected to the first working channel (230) or the second working channel (240), and the other end of the third working channel (250) is connected to the outside of the transition block (200).
The integrated water valve according to claim 1, wherein the transition block (200) is detachably connected between the hydraulically controlled water valve (100) and the hydraulic control valve (300).
The integrated water valve according to claim 4, wherein the hydraulically controlled water valve (100) and the transition block (200) as well as the hydraulically controlled valve (300) and the transition block (200) are both connected by bolts. connect.
According to the integrated water valve of claim 1, wherein the hydraulic control valve (300) is a two-position four-way reversing valve, and the two-position four-way reversing valve is an electromagnetic reversing valve.
The integrated water valve according to claim 3, wherein an end of the second working channel (240) away from the hydraulic control valve (300) and an end of the third working channel (250) away from the first working channel (230) are both provided with plugs.
The integrated water valve according to claim 2, wherein sealing members are provided between the control oil port (c) and an end of the first working channel (230) close to the hydraulically controlled water valve (100), between an end of the oil inlet channel (210) close to the hydraulic control valve (300) and the first oil inlet port ( P1 ), between an end of the oil return channel (220) close to the hydraulic control valve (300) and the first oil return port ( T1 ), between an end of the first working channel (230) close to the hydraulic control valve (300) and the first working oil port ( A1 ), and between an end of the second working channel (240) close to the hydraulic control valve (300) and the second working oil port ( B1 ).
A water system, comprising the integrated water valve according to any one of claims 1 to 8.
An operating machine, comprising the integrated water valve as described in any one of claims 1 to 8 or the water system as described in claim 9.