Waterway / liquidway control multifunction valve

Abstract

The utility model discloses a waterway / liquid path control multifunctional valve, including valve body and water inlet and water outlet on the valve body, valve body still has second water inlet, second water outlet, first valve core control operating part, water inlet cavity, water outlet cavity, check valve, first valve core and second valve core, wherein the first valve core is equipped in the second water outlet, and the opening and shutdown of first valve core are controlled and are associated with the operation control of first valve core control operating part, and the check valve is equipped in the second water inlet, and the water outlet cavity is linked with the water outlet, and the second water inlet is linked with the water outlet cavity through the check valve, the water inlet cavity is linked with the water inlet, and the communication and shutdown of water inlet cavity and water outlet cavity are controlled and are associated with the control of first valve core hand wheel control operating part, and the communication and shutdown of water inlet cavity and second water outlet are controlled and are associated with the opening and shutdown of first valve core. Can disconnect water quality treater under the condition of not closing main pipeline water source, integrates multiple valves in one, improves water quality treatment system pipeline installation simplicity and installation maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to a water circuit control valve, and more particularly to a water / liquid circuit control valve used in water quality treatment pipelines. Background Technology

[0002] In today's society, various water bodies, such as domestic water, landscape water, swimming pool water, and drinking water, all require raw water to be purified and disinfected by water quality processors or water treatment devices before they can meet the water quality requirements for use. However, these water quality processors or devices require numerous water circuit control bypass valves during the raw water treatment system pipeline process to meet the needs of normal operation and maintenance. Since these bypass valves only have bypass functions, multiple bypass valves need to be added to the water treatment system pipeline to meet these requirements. This makes the entire water treatment system pipeline installation process cumbersome, increases the cost of water treatment production and installation, and also makes the entire system pipeline less aesthetically pleasing and streamlined. Furthermore, they lack simultaneous sampling, venting, and backflow prevention functions, thus requiring the installation of multiple additional bypass valves to meet sampling and venting needs.

[0003] Patent No. ZL201822156658.8, published on July 23, 2019, discloses a gate valve belonging to the field of valve manufacturing technology. It solves the problem of poor water quality in existing gate valves. This gate valve includes a valve stem, a valve body with an inlet and an outlet, and a valve seat with an opening inside the valve body. The valve seat divides the valve body cavity into an inlet chamber and an outlet chamber. The inlet and outlet are connected to each other. A valve cover is threaded onto the valve body, and the valve stem is threaded onto the valve cover. The top of the valve stem extends beyond the valve cover and is connected to a handwheel. A recessed groove is provided on the outer wall of the valve stem near its bottom, and a sealing gasket for sealing the valve seat is embedded in the groove. A drain pipe connected to the outlet chamber is connected to the side of the valve body. The drain pipe has a drain port connected to a detachable stainless steel mesh cover. The drain pipe has an opening and closing structure for controlling the opening and closing of the drain port. This utility model has a drain function and a compact structure. However, if this solution is used in water treatment pipelines, it also has drawbacks such as the need to add multiple valves to the pipeline, which makes the installation process cumbersome, increases production and installation costs, and makes the pipeline unsightly. Utility Model Content

[0004] This utility model addresses the problem that existing water circuit control valves used in water treatment system pipelines require multiple valves to meet various usage requirements, resulting in a cumbersome installation process, increased production and installation costs, and an aesthetically unappealing pipeline design. It provides a multi-functional water / liquid circuit control valve that integrates multiple valves, allowing the water treatment system to be disconnected without shutting off the main water supply. This improves the simplicity of water treatment system pipeline installation and enhances installation and maintenance efficiency.

[0005] The specific technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a multi-functional valve for water / liquid circuit control, including a valve body and an inlet and an outlet on the valve body, characterized in that: the valve body further has a second inlet, a second outlet, a first valve core control operating element, an inlet chamber, an outlet chamber, a check valve, and a first valve core, wherein the first valve core is provided in the second outlet, and the opening and closing of the first valve core are associated with the operation control of the first valve core control operating element; a check valve is provided in the second inlet, and the outlet chamber is connected to the outlet, and the second inlet is connected to the outlet chamber through the check valve; the inlet chamber is connected to the inlet, and the connection between the inlet chamber and the outlet chamber is associated with the control of the first valve core handwheel control operating element; the connection between the inlet chamber and the second outlet is associated with the control of the opening and closing of the first valve core. The same control valve is equipped with a multi-functional control valve body that integrates a second inlet, a second outlet, a first valve core control operating component, an inlet chamber, an outlet chamber, a check valve, a first valve core, and a second valve core. This allows the water treatment system to be disconnected without shutting off the main water supply. The integration of multiple valves into one unit improves the simplicity of water treatment system pipeline installation and increases the efficiency of water treatment system pipeline installation and maintenance.

[0006] Preferably, the valve body also includes an exhaust port / sampling port, a second valve core control actuator, and a second valve core. The second valve core is housed within the exhaust port / sampling port, and its opening and closing are controlled by the second valve core control actuator. The exhaust port / sampling port is connected to the outlet chamber via the second valve core. By simultaneously equipping the same control valve with a multi-functional control valve body integrating the exhaust port / sampling port and the second valve core control actuator, the water treatment system can be disconnected without shutting off the main water supply, and it can also perform exhaust / sampling functions without shutting off the main water supply. Integrating multiple valves into one unit improves the simplicity of water treatment system pipeline installation and increases the efficiency of water treatment system pipeline installation and maintenance.

[0007] Preferably, the valve body is provided with an inlet chamber, an outlet chamber, and an inter-chamber connecting port. The connection or disconnection between the inlet chamber and the outlet chamber is controlled by the opening or closing of the inter-chamber connecting port. When the first valve core opens the inter-chamber connecting port, the inlet chamber and the outlet chamber are connected to the water flow. When the first valve core closes the inter-chamber connecting port, the inlet chamber and the outlet chamber are disconnected from the water flow. Alternatively, the valve body is provided with an inlet chamber, an outlet chamber, and an inlet / outlet water chamber, wherein the outlet chamber and the inlet / outlet water chamber are connected. The connection and disconnection between the inlet / outlet water chamber and the inlet chamber are controlled by the opening or closing of the first valve core. The diameter of the water inlet connecting the chambers can provide free space for the rotation shaft of the first valve core control component to move through, and can also drive the first valve core to move synchronously with the rotation shaft of the first valve core control component, thereby providing water flow or shut-off for the inlet and outlet chambers. It fully and effectively utilizes and optimizes the internal structural space of the entire multi-functional valve body, making the overall structure of the valve body more neat, simple and compact.

[0008] Preferably, the first valve core control actuator includes a rotating shaft and a rotating handwheel or rotating handle connected to the outer end of the rotating shaft. The inner end of the rotating shaft is connected to the first valve core. The rotating handwheel or rotating handle is used to operate and open or close the first valve core, thereby realizing the connection or disconnection between the inlet chamber and the outlet chamber. This improves the ease, convenience, and effectiveness of operation and control of the first valve core control actuator.

[0009] Preferably, the first valve core has a frustum-shaped valve body structure, which includes a circular frustum or a polygonal frustum shape. The polygonal frustum is a polygonal frustum with a number of polygonal base sides; the polygonal frustum includes a triangular frustum, a quadrangular frustum, a pentagonal frustum, and a hexagonal frustum. The diameter of the inter-cavity communication port between the inlet and outlet chambers is larger than the top dimension of the frustum-shaped valve body structure but smaller than the bottom dimension. Furthermore, the diameter of the inter-cavity communication port is larger than the outer circumference of the rotating shaft in the first valve core control mechanism. The rotating shaft in the first valve core control mechanism passes through the inter-cavity communication port and moves freely up and down within it. This improves the simplicity, convenience, reliability, and effectiveness of the first valve core's control structure for opening or closing the inter-cavity communication port between the inlet and outlet chambers. The diameter of the water inlet connecting the chambers can provide free space for the rotation shaft of the first valve core control component to move through, and can also drive the first valve core to move synchronously with the rotation shaft of the first valve core control component, thereby providing water flow or shut-off for the inlet and outlet chambers. It fully and effectively utilizes and optimizes the internal structural space of the entire multi-functional valve body, making the overall structure of the valve body more neat, simple and compact.

[0010] Preferably, the water inlet chamber and the water inlet sub-chamber are separated by a frustum-shaped sub-chamber. This frustum-shaped sub-chamber is a circular frustum or a polygonal frustum, with the polygonal frustum having a polygonal number of base sides. A first valve core is housed within the frustum-shaped sub-chamber, and this first valve core has an outer wall structure that mates with the inner wall of the frustum-shaped sub-chamber. The polygonal frustum includes triangular, quadrangular, pentagonal, and hexagonal frustums. This improves the simplicity and effectiveness of the opening or closing structure between the first valve core and the frustum-shaped sub-chamber.

[0011] Preferably, the inlet and outlet chambers are separated within the same straight pipe valve body, with the inlet and outlet located at opposite ends of the same straight pipe valve body. The second inlet and outlet are both located on the same side wall of the same straight pipe valve body, and the first valve core control element and the second outlet are perpendicular to the same straight pipe valve body. The first valve core control element and the second outlet are located on the valve body of the same straight pipe valve body near the inlet end and are located on opposite sides of the valve body. The second inlet is located on the valve body of the same straight pipe valve body near the outlet end. The first valve core control element, the vent / sampling port, and the second valve core control element are all located on the same side wall of the same straight pipe valve body. The multi-functional integrated distribution structure of the inlet chamber, outlet chamber, second inlet, second outlet, vent / sampling port, first valve core control actuator, and second valve core control actuator on the same straight pipe valve body is simple, reasonable, neat, compact, and effective.

[0012] Preferably, the first valve core control actuator adopts a rotary handwheel structure or a rotary handle structure, and the rotary handwheel adopts a multi-spoke handwheel structure with or without an outer rim. This improves the simplicity, convenience, and effectiveness of the operation and control of the first valve core control actuator.

[0013] Preferably, a sealing ring is fitted around the outer periphery of the rotating shaft. This sealing ring includes a sealing ring between the area connected to the valve body and a sealing ring between the area connected to the first valve core. A sealing ring is also fitted onto the outer wall of the first valve core between the area connected to the valve body. This improves the sealing safety and reliability of the first valve core control element and the first valve core during its operation and control applications.

[0014] Preferably, the inner end section of the rotating shaft has a stepped extension section that continues to extend and narrows. The end of the extension section is provided with an external threaded section, and the outer end of the first valve core has an internal threaded section that is threadedly connected to this external threaded section. The first valve core is threadedly fitted onto the outer circumference of the inner end section of the rotating shaft, and a sealing ring is used to achieve a seal between the outer wall of the first valve core and the valve body, as well as a seal between the inner wall of the first valve core and the inner end section of the rotating shaft. This improves the ease, stability, reliability, and maintenance of the installation and connection between the rotating shaft and the first valve core.

[0015] Preferably, the second valve core control actuator has a rotating shaft and a rotating handwheel or handle connected to the outer end of the rotating shaft. A sealing ring is fitted inside the rotating shaft. An exhaust / sampling chamber is provided between the exhaust port / sampling port and the water outlet chamber. A circular truncated cone channel is provided within the exhaust / sampling chamber. The inner end of the rotating shaft is movably connected to the circular truncated cone channel. The opening or closing of the inner end of the rotating shaft and the circular truncated cone channel is controlled by the rotating handwheel or handle connected to the outer end of the rotating shaft. This improves the ease, convenience, and effectiveness of operation of the second valve core control actuator, providing both exhaust / sampling functions and effective control.

[0016] Preferably, the second valve core control actuator adopts a rotary handwheel structure or a rotary handle structure, and the rotary handwheel adopts a multi-spoke handwheel structure with or without an outer rim. This improves the simplicity, convenience, and effectiveness of the operation and control of the second valve core control actuator.

[0017] The beneficial effects of this utility model are as follows: It integrates a multi-functional control valve body within a single control valve, comprising a second inlet, a second outlet, an exhaust / sampling port, a first valve core control element, a second valve core control element, an inlet chamber, an outlet chamber, a check valve, and both the first and second valve cores. This allows for the disconnection of the water treatment system without shutting off the main water supply. The integration of multiple control valves improves the compactness and simplicity of the water treatment system's piping installation, and enhances the efficiency of installation and maintenance. The diameter of the connecting inlet between the chambers provides free space for the rotation of the first valve core control element's shaft, while also allowing the first valve core to move synchronously with its rotation, thus facilitating the flow of water between the inlet and outlet chambers. This fully and effectively utilizes and optimizes the internal structural space of the multi-functional valve body, resulting in a cleaner, simpler, and smaller overall structure.

[0018] The purpose of this invention is to provide a multi-functional water circuit control valve that integrates multiple control valves into one unit, improving installation efficiency, featuring a compact and neat structure that saves on valve production costs, and allowing disconnection of the water treatment unit without shutting off the main water supply, greatly facilitating the maintenance of the water treatment unit. It is particularly suitable for water circuit control applications such as water treatment units. Currently, the bypass valve of a water treatment unit needs to be installed on the water treatment unit itself.

[0019] This utility model is installed in the main pipeline and provides the following functions: 1. Bypass valve function: Allows water to bypass the system, and the water purifier can be disconnected without cutting off the water supply. 2. Check valve function: Prevents backflow of water in the system. 3. Air vent valve function: Removes air bubbles that may affect the operation of the water purifier / pipeline. 4. Sampling valve function: Takes water samples for testing (e.g., water hardness before and after the water purifier). 5. Mixing valve function: Mixes the raw water in the pipeline with the water treated by the water purifier to obtain the optimal water quality at the outlet. Attached Figure Description The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a cross-sectional structural schematic diagram of the multi-functional valve for water / liquid circuit control of this utility model.

[0021] Figure 2 This is a three-dimensional structural diagram of the multi-functional valve for water / liquid circuit control of this utility model. Detailed Implementation

[0022] Example 1: Figure 1 , Figure 2In the illustrated embodiment, a multi-functional water / liquid circuit control valve includes a valve body and an inlet 30 and an outlet 60 on the valve body. The valve body also has a second inlet 50, a second outlet 40, a first valve core control operating element 10, an inlet chamber 90, an outlet chamber 100, a check valve 70, and a first valve core 80. The first valve core 80 is installed inside the second outlet 40, and the opening and closing of the first valve core 80 is controlled by the operation of the first valve core control operating element 10. The valve body is equipped with a check valve 70 installed inside the second inlet 50. The outlet chamber 100 is directly connected to the outlet 60. The second inlet 50 is connected to the outlet chamber 100 through the check valve 70. The inlet chamber 90 is connected to the inlet 30. The connection and disconnection between the inlet chamber 90 and the outlet chamber 100 are controlled by the first valve core handwheel control element 10. The connection and disconnection between the inlet chamber 90 and the second outlet 40 are controlled by the opening and closing of the first valve core 80. Furthermore, the valve body also has an exhaust port / sampling port, a second valve core control element, and a second valve core 22. The exhaust port / sampling port 21 contains the second valve core 22. The opening and closing of the second valve core 22 are controlled by the operation of the second valve core control element 20. The exhaust port / sampling port 21 is connected to the outlet chamber 100 through the second valve core 22.

[0023] The valve body is provided with an inlet chamber 90, an outlet chamber 100, and an inter-chamber communication port 92. The connection or disconnection between the inlet chamber 90 and the outlet chamber 100 is controlled by opening or closing the inter-chamber communication port 92. When the first valve core 80 opens the inter-chamber communication port 92, water flow is connected between the inlet chamber 90 and the outlet chamber 100. When the first valve core 80 closes the inter-chamber communication port 92, water flow is disconnected between the inlet chamber 90 and the outlet chamber 100. The inlet chamber 90 has an inlet water chamber 91 extending through the first valve core 80 and extending close to the check valve 70. The inlet water chamber 91 can further improve the buffering stability of the water flow between the inlet chamber 90 and the outlet chamber 100, and improve the buffering stability of the outflow water flow between the inlet chamber 90 and the second outlet 40.

[0024] The first valve core 80 has a frustum-shaped valve body structure, which includes a circular frustum or a polygonal frustum shape. The polygonal frustum adopts a polygonal frustum structure with a number of polygonal base sides. The polygonal frustum includes a triangular frustum, a quadrangular frustum, a pentagonal frustum, and a hexagonal frustum. The diameter of the inter-cavity communication port 92 between the inlet chamber 90 and the outlet chamber 100 is larger than the top size of the frustum-shaped valve body structure but smaller than the bottom size of the frustum-shaped valve body structure. The diameter of the inter-cavity communication port 92 is larger than the outer circumference of the rotating shaft 11 provided in the first valve core control operating component 10. The rotating shaft 11 provided in the first valve core control operating component 10 passes through the inter-cavity communication port 92 and moves freely up and down within the inter-cavity communication port 92. The diameter of the inter-cavity connecting water inlet 92 can provide free passage space for the rotation shaft 11 of the first valve core control operating component 10, and can also drive the first valve core 80 to move synchronously with the rotation shaft 11 of the first valve core control operating component 10, thereby providing water flow or shut-off for the inlet cavity 90 and the outlet cavity 100. It fully, effectively and rationally utilizes and optimizes the internal structural space of the entire multi-functional valve body, making the overall structure of the valve body more neat, simple and small.

[0025] The first valve core control operating component 10 includes a rotating shaft 11 and a rotating handwheel 12 or a rotating handle connected to the outer end of the rotating shaft. The inner end 111 of the rotating shaft is connected to the first valve core 80. The rotating handwheel or rotating handle is used to operate and drive the rotating shaft 11 to rotate synchronously, thereby opening or closing the first valve core 80, thus realizing the connection or disconnection between the inlet chamber 90 and the outlet chamber 100. The first valve core control operating component 10 adopts a structure with a rotating handwheel or a rotating handle. The rotating handwheel adopts a multi-spoke handwheel structure with or without an outer rim.

[0026] The inlet chamber 90 and the outlet chamber 100 are separated within the same straight pipe valve body. The inlet 30 and the outlet 60 are respectively located at both ends of the same straight pipe valve body. The second inlet 50 and the second outlet 40 are both located on the same side wall of the same straight pipe valve body. The first valve core control operating element 10 and the second outlet 40 are both perpendicular to the same straight pipe valve body. The first valve core control operating element 10 and the second outlet 40 are located on the valve body of the same straight pipe valve body near the end where the inlet 30 is located and are located on both sides of the valve body of the same straight pipe valve body. The second inlet 50 is located on the valve body of the same straight pipe valve body near the end where the outlet 60 is located. The first valve core control operating element 10 and the second valve core control operating element 20 are both located on the same side wall of the same straight pipe valve body.

[0027] A sealing ring 110 is fitted around the outer periphery of the rotating shaft 11. The sealing ring 110 includes a sealing ring 110 between the area connected to the valve body and a sealing ring 110 between the area connected to the first valve core 80. A sealing ring 110 is fitted around the outer wall of the first valve core 80 between the area connected to the valve body. The inner end section of the rotating shaft has a rotating shaft extension section 111 that extends further and narrows to form a stepped shape. The end of the rotating shaft extension section 111 is provided with an external connecting thread section. The outer end 81 of the first valve core is provided with an inner connecting thread section that is threadedly connected to the external connecting thread section. The first valve core 80 is fitted around the outer periphery of the inner end section of the rotating shaft through a threaded connection, and the sealing ring 110 achieves the sealing between the outer wall of the first valve core 80 and the area connected to the valve body, as well as the sealing between the inner wall of the first valve core 80 and the area connected to the inner end section of the rotating shaft.

[0028] The second valve core control actuator 20 includes a rotating shaft and a second rotating handwheel 23 or rotating handle connected to the outer end of the rotating shaft. A sealing ring is fitted onto the inner end of the rotating shaft. An exhaust / sampling chamber is provided between the exhaust port / sampling port 21 and the water outlet chamber 100. A circular conical channel is provided within the exhaust / sampling chamber. The inner end of the rotating shaft is movably connected to the circular conical channel. The opening or closing of the circular conical channel, in conjunction with the sealing ring fitted onto the inner end of the rotating shaft, is controlled by the rotating handwheel or rotating handle connected to the outer end of the rotating shaft. The second valve core control actuator 20 adopts a structure with a rotating handwheel or a rotating handle. The rotating handwheel is a multi-spoke handwheel structure with or without an outer ring.

[0029] Example 2: Figure 1 , Figure 2 In the illustrated embodiment, the valve body is provided with an inlet chamber 90, an outlet chamber 100, and an inlet / outlet water chamber 91, wherein the outlet chamber 100 and the inlet / outlet water chamber 91 are connected, and the connection and disconnection between the inlet / outlet water chamber 91 and the inlet chamber 90 are controlled by the opening and closing of the first valve core 80. A frustum-shaped sub-chamber is provided between the inlet chamber 90 and the inlet / outlet water chamber 91. The frustum-shaped sub-chamber adopts a circular frustum or a polygonal frustum shape, and the polygonal frustum adopts a polygonal frustum structure with a number of polygonal base sides. A first valve core 80 is provided within the frustum-shaped sub-chamber, and the first valve core 80 has a first valve core outer wall structure that mates with the inner wall surface of the frustum-shaped sub-chamber. The polygonal frustum includes a triangular frustum, a quadrangular frustum, a pentagonal frustum, and a hexagonal frustum. Other aspects are the same as in Embodiment 1.

[0030] When using it, perform the corresponding operations according to the following functional requirements: 1. Bypass valve function: Water from the main pipeline enters the inlet chamber 90 through the inlet 30. At this time, by rotating the handwheel 12 of the first valve core control operating component 10, the first valve core 80 connected to the inner end of the rotating shaft 11 is driven to rotate, so that the first valve core 80 rises to the highest position. The first valve core 80 closes the water inlet 92 between the chambers. The first valve core 80 isolates the inlet chamber 90 and the outlet chamber 100. The water enters the water quality processor through the second outlet 40, and then flows out from the outlet 60 through the second inlet 50, the check valve 70 and the outlet chamber 100.

[0031] If the water purifier is under maintenance, it can be disconnected without disconnecting the main water supply. The specific implementation is as follows: Rotate the handwheel 12 of the first valve core control operating component 10, which will drive the first valve core 80 connected to the inner end of the rotating shaft 11 to rotate downwards. Finally, the first valve core 80 will descend to the lowest point, opening the inter-cavity connecting water inlet 92. The first valve core 80 isolates the inlet cavity 90 and the second outlet 40. The raw water flows directly from the inlet cavity 90 to the outlet cavity 100 and finally flows out from the outlet 60. A check valve 70 is installed at the second inlet 50, so that the water in the outlet cavity 100 will not flow back into the water purifier through the second inlet 50.

[0032] 2. Check valve function: A check valve 70 is installed at the second inlet 50 of this utility model, ensuring that water can only flow from the second inlet 50 to the outlet chamber 100, and not from the outlet chamber 100 to the second inlet 50. This function allows the water supply to the main pipeline to be maintained during water quality treatment.

[0033] 3. Exhaust valve function: By rotating the second handwheel 23 of the second valve core control operating component 20, the rotating shaft of the second valve core control operating component 20 is rotated synchronously, causing the inner end of the rotating shaft to rotate upward and lift, thereby driving the second valve core 22 to rise and open, so that the air in the pipeline is discharged through the exhaust port / sampling port 21.

[0034] 4. Sampling valve function: Water from the main pipeline enters the inlet chamber 90 through the inlet 30. At this time, by rotating the handwheel 12 of the first valve core control operating element 10, the first valve core 80 connected to the inner end of the rotating shaft 11 is driven to rotate, causing the first valve core 80 to rise to the highest position. The first valve core 80 closes the water inlet 92 between the chambers, thereby isolating the inlet chamber 90 and the outlet chamber 100. The water enters the water quality processor through the second outlet 40, and then reaches the outlet chamber 100 through the second inlet 50 and the check valve 70. By rotating the second handwheel 23 of the second valve core control operating element 20, the second valve core 22 is driven to rise and open, allowing the water to flow out through the exhaust port / sampling port 21 for sampling.

[0035] 5. Mixing Valve Function: Water from the main pipeline enters the inlet chamber 90 through inlet 30. At this time, by rotating the handwheel 12 of the first valve core control operating component 10, the first valve core 80 is prevented from rising to its highest position. This causes some water to enter the water processor through the second outlet 40, then through the second inlet 50 and check valve 70 to reach the outlet chamber 100; while the other part of the water flows directly from the inlet chamber 90 to the outlet chamber 100, thus mixing the two parts and flowing out from the outlet 60. The ratio of the two parts of water can be adjusted by changing the position of the first valve core 80.

[0036] In the description of the positional relationship in this utility model, terms such as "inner", "outer", "upper", "lower", "left", "right", "ascend", and "descend" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] The above content and structure describe the basic principles, main features, and advantages of this utility model, which should be understood by those skilled in the art. The examples and descriptions above are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-functional valve for water / liquid circuit control, comprising a valve body and an inlet and an outlet on the valve body, characterized in that: The valve body also includes a second inlet, a second outlet, a first valve core control element, an inlet chamber, an outlet chamber, a check valve, and a first valve core. The second outlet contains the first valve core, and the opening and closing of the first valve core are controlled by the operation of the first valve core control element. The second inlet contains the check valve, and the outlet chamber is connected to the outlet. The second inlet is connected to the outlet chamber through the check valve. The inlet chamber is connected to the inlet, and the connection between the inlet chamber and the outlet chamber is controlled by the first valve core handwheel control element. The connection between the inlet chamber and the second outlet is controlled by the opening and closing of the first valve core.

2. The multi-functional valve for water / liquid circuit control according to claim 1, characterized in that: The valve body also has an exhaust port / sampling port, a second valve core control operating element, and a second valve core. The exhaust port / sampling port is equipped with a second valve core. The opening and closing of the second valve core are related to the operation control of the second valve core control operating element. The exhaust port / sampling port is connected to the water outlet chamber through the second valve core.

3. The multi-functional valve for water / liquid circuit control according to claim 1, characterized in that: The valve body is provided with an inlet chamber, an outlet chamber and an inter-chamber communication port. The connection or disconnection between the inlet chamber and the outlet chamber is controlled by the opening or closing of the inter-chamber communication port. When the first valve core opens the inter-cavity connecting water inlet, the inlet and outlet chambers are connected to the water flow; when the first valve core closes the inter-cavity connecting water inlet, the inlet and outlet chambers are shut off from the water flow. Alternatively, the valve body is provided with an inlet chamber, an outlet chamber, and an inlet / outlet water chamber, wherein the outlet chamber and the inlet / outlet water chamber are connected, and the connection and disconnection of the inlet / outlet water chamber and the inlet chamber are controlled by the opening and closing of the first valve core.

4. The multi-functional valve for water / liquid circuit control according to claim 1, characterized in that: The first valve core control operating component includes a rotating shaft and a rotating handwheel or rotating handle connected to the outer end of the rotating shaft. The inner end of the rotating shaft is connected to the first valve core. The rotating handwheel or rotating handle is used to operate and drive the first valve core to open or close, thereby realizing the connection or disconnection between the water inlet chamber and the water outlet chamber.

5. The multi-functional water / liquid circuit control valve according to claim 1 or 3, characterized in that: The first valve core has a frustum-shaped valve body structure, which includes a circular frustum or a polygonal frustum shape. The polygonal frustum adopts a polygonal frustum structure with a number of polygonal base sides. The polygonal frustum includes a triangular frustum, a quadrangular frustum, a pentagonal frustum, and a hexagonal frustum. The diameter of the inter-cavity communication port between the inlet and outlet chambers is larger than the top size of the frustum-shaped valve body structure but smaller than the bottom size. The diameter of the inter-cavity communication port is larger than the outer circumference of the rotating shaft in the first valve core control and operating component. The rotating shaft in the first valve core control and operating component passes through the inter-cavity communication port and moves freely up and down within the inter-cavity communication port.

6. The multi-functional valve for water / liquid circuit control according to claim 1, characterized in that: The inlet and outlet chambers are separated within the same straight pipe valve body, with the inlet and outlet located at opposite ends of the same straight pipe valve body. The second inlet and outlet are both located on the same side wall of the same straight pipe valve body, and the first valve core control element and the second outlet are both perpendicular to the same straight pipe valve body. The first valve core control element and the second outlet are located on the valve body of the same straight pipe valve body near the inlet end and are located on opposite sides of the valve body. The second inlet is located on the valve body of the same straight pipe valve body near the outlet end. The first valve core control element and the second valve core control element are both located on the same side wall of the same straight pipe valve body.

7. The multi-functional valve for water / liquid circuit control according to claim 4, characterized in that: The rotating shaft is fitted with a sealing ring on its outer circumference. The sealing ring on the outer circumference of the rotating shaft includes a sealing ring between the area connected to the valve body and a sealing ring between the area connected to the first valve core. The outer wall surface of the first valve core is fitted with a sealing ring between the area connected to the valve body.

8. The multi-functional valve for water / liquid circuit control according to claim 4, characterized in that: The inner end section of the rotating shaft has a further extending and narrowing step-shaped shaft extension section. The end of the shaft extension section is provided with an external connecting thread section. The outer end of the first valve core is provided with an inner connecting thread section that is threadedly connected to the external connecting thread section. The first valve core is threadedly fitted onto the outer periphery of the inner end section of the rotating shaft, and a sealing ring is used to achieve a seal between the outer wall surface of the first valve core and the valve body, as well as a seal between the inner wall surface of the first valve core and the inner end section of the rotating shaft.

9. The water / liquid circuit control multifunctional valve according to claim 2 or 6, characterized in that: The second valve core control component includes a rotating shaft and a rotating handwheel or rotating handle connected to the outer end of the rotating shaft. A sealing ring is fitted on the inner end of the rotating shaft. An exhaust chamber / sampling chamber is provided between the exhaust port / sampling port and the water outlet chamber. A circular conical channel is provided in the exhaust chamber / sampling chamber. The inner end of the rotating shaft is movably connected to the circular conical channel. The opening or closing of the inner end of the rotating shaft and the circular conical channel is controlled by the rotating handwheel or rotating handle connected to the outer end of the rotating shaft.

10. The water / liquid circuit control multifunctional valve according to claim 2 or 6, characterized in that: The first valve core control actuator adopts a structure with a rotating handwheel or a rotating handle, and the rotating handwheel adopts a multi-spoke handwheel structure with or without an outer rim; the second valve core control actuator adopts a structure with a rotating handwheel or a rotating handle, and the rotating handwheel adopts a multi-spoke handwheel structure with or without an outer rim.

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