Intelligent leakage-proof water replenishing valve

Abstract

The invention provides an intelligent leakage-proof water replenishing valve, and belongs to the technical field of valves. The technical problem that an existing water replenishing valve is prone to triggering false alarm is solved. According to the intelligent leakage-proof water replenishing valve, an intelligent controller and a pressure sensor are fixedly connected to a valve body, the intelligent controller is electrically connected with the pressure sensor, a water inlet cavity, a water outlet cavity and an isolation part for isolating the water inlet cavity from the water outlet cavity are arranged in the valve body, a first mounting hole is formed in the isolation part, and the pressure sensor is mounted in the water outlet cavity; a water inlet seat is fixedly connected into the first mounting hole in a sealed mode, a one-way water passing device is arranged in the water inlet seat, a fixed piece is fixed to the upper portion of the water inlet seat in a sealed mode, a movable piece abuts against the upper portion of the fixed piece through a plane, a valve rod is fixedly connected to the upper portion of the movable piece and fixedly connected with the intelligent controller, and a water passing hole and a plugging part are arranged on the fixed piece. And the movable plate and the fixed plate open or close the water passing hole through running fit. According to the invention, the response speed and precision of water replenishing control are improved, and false alarms caused by pressure fluctuation are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of valve devices, and in particular to an intelligent leak-proof water supply valve. Background Art

[0002] During the operation of a home heating system, minor leaks, exhaust, or maintenance can cause a decrease in system water volume and pressure. The fill valve is used to add fresh tap water to the system to restore and maintain normal system pressure.

[0003] For example, patent No. 2024210240250 discloses an intelligent, leak-proof water supply valve. The valve features an intelligent controller with integrated control algorithms, providing automatic water supply, leak alarm, and emergency shutoff functions. The valve body is connected to an inlet and outlet connector at both ends, connecting to the water inlet pipeline and the closed water circulation system, respectively. A valve chamber is formed within the valve body, connecting the water inlet and outlet. The valve stem and spherical valve core rotate to control the opening and closing of the water flow channel, adjusting the water supply volume. A sensor connector, mounted on the bottom of the valve body, is located between the spherical valve core and the outlet. Valve chamber pressure data is transmitted to the intelligent controller in real time via a signal transmission line. When the pressure sensor detects that the system pressure falls below a set value, the intelligent controller automatically opens the ball valve to supply water and closes it when the set value is reached. However, during the water supply process, water flow disturbances can cause pressure fluctuations. The momentary changes in the water flow path caused by the ball valve's rotation can also cause water hammer and pressure oscillations. This can prevent the pressure sensor from accurately capturing the system pressure. Failure to detect the pressure sensor in a timely manner can trigger false alarms, resulting in a poor user experience. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide an intelligent, leak-proof water filling valve. The technical problem addressed by this invention is how to overcome the interference of water flow disturbances and valve mechanical motion on pressure detection during the filling process, enabling the pressure sensor to accurately capture the actual pressure changes within a closed heating or circulating water system in real time, thereby improving the response speed and accuracy of water filling control while reducing false alarms caused by pressure fluctuations.

[0005] The objectives of the present invention can be achieved through the following technical solutions: an intelligent leak-proof water supply valve, comprising a valve body, an intelligent controller and a pressure sensor fixedly connected to the valve body, the intelligent controller electrically connected to the pressure sensor, a water inlet chamber, a water outlet chamber and an isolation portion separating the water inlet chamber and the water outlet chamber provided in the valve body, a mounting hole 1 provided on the isolation portion, the mounting hole 1 connecting the water inlet chamber and the water outlet chamber, the pressure sensor installed in the water outlet chamber, the mounting hole 1 sealed and fixedly connected to the water inlet seat, a one-way water flow device provided in the water inlet seat, a stator sealed and fixed above the water inlet seat, a movable plate abutting against the stator above the stator through a plane, a valve stem fixedly connected above the movable plate, the valve stem and the intelligent controller fixedly connected, a water flow hole and a sealing portion provided on the stator, the movable plate and the stator open or close the water flow hole by rotating in coordination.

[0006] This solution divides the interior of the valve body into a water inlet chamber and a water outlet chamber through an isolation part, and opens the size of the water hole by rotating the movable plate and the fixed plate. The size of the water hole can control the size of the water replenishment pressure. The planes of the movable plate and the fixed plate abut against the rotating structure to make the water flow channel linearly gradient, reducing the water hammer effect and pressure oscillation. The pressure sensor is installed at one end of the water outlet chamber to avoid the interference of the water flow disturbance area of the water inlet chamber and the valve core action on the pressure detection, so that the pressure sensor can capture the real pressure changes in the closed heating or circulating water system in real time and accurately, thereby improving the response speed and accuracy of the water replenishment control and reducing false alarms caused by pressure fluctuations.

[0007] Furthermore, the water inlet seat is formed with a water flow guide portion, and the one-way water flow device includes a one-way fixed seat and a one-way water flow component. The one-way fixed seat is sealed and fixed to the inner wall of the water inlet seat by a retaining spring and a sealing ring. The one-way water flow component is located between the water flow guide portion and the one-way fixed seat. The one-way water flow component moves up and down to abut against or away from the one-way fixed seat.

[0008] Furthermore, the one-way fixing seat has a water hole in its center. The one-way water passage comprises a circular arc plate, a guide rod formed in the center of the circular arc plate, and arc-shaped claws formed at the upper end of the circular arc plate and protruding outward. There are at least two arc-shaped claws, evenly distributed around the circumference. The water passage guide has a guide hole in its center, through which the guide rod passes. A return spring is sleeved around the outer circumference of the guide rod. A water passage is formed between the two arc-shaped claws. The circumferential distribution of the arc-shaped claws ensures uniform sealing force and prevents backflow.

[0009] Furthermore, the inner circumferential wall of the water inlet seat is provided with an arcuate groove that gradually expands toward the water flow guide portion, and the upper end of the arcuate claw abuts against the side wall of the arcuate groove. The water flow channel formed by the gradually expanding arcuate groove and the arc plate can guide the water flow to diffuse smoothly and reduce pressure fluctuations.

[0010] Furthermore, the valve body is provided with a second mounting hole opposite to the first mounting hole, and a valve housing is sealed and fixedly provided in the second mounting hole, and a valve stem, a moving plate, a fixed plate and a water inlet seat are provided in the valve housing from top to bottom, and a sealing member is embedded in the outer periphery of the water inlet seat, and the lower end of the sealing member is sealed against the isolation part, the outer periphery of the sealing member is sealed against the valve housing, and the upper end of the sealing member is sealed against the stator, and the intelligent controller includes a fixing part, a fixing part is movably sleeved outside the fixing part, the lower end of the fixing part is embedded in the second mounting hole and is against the upper end of the valve housing, the fixing part is fixedly connected to the valve body through a thread, and a through hole is provided on the side wall of the valve housing.

[0011] In this solution, after the lower end of the seal is embedded in the mounting groove of the isolation part, the groove wall radially squeezes the seal, blocking the axial leakage path between the water inlet chamber and the water outlet chamber. The upper end of the seal presses the bottom surface of the stator, and the flat static seal prevents water from bypassing the edge of the stator and seeping into the valve housing. The outer periphery of the seal is interference fit with the inner wall of the valve housing. The elastic seal is compressed and expanded by the valve housing, sealing the gap between the water inlet seat and the valve housing. The valve housing sealing part presses the step hole through the second sealing ring. The second sealing ring is pre-compressed to form an annular barrier to prevent water from leaking along the second mounting hole. The second sealing ring and the seal support the radial sealing of the valve housing. The valve housing and seal are then axially fixed by the fixing part at one time. This is convenient for installation and has a stable and firm seal. The obstruction of the isolation part effectively reduces the impact of water flow on the valve housing, effectively overcoming water flow disturbances during the water replenishment process, enabling the pressure sensor to capture the actual pressure changes in the closed heating or circulating water system in real time and accurately, improving the response speed and accuracy of water replenishment control, and reducing false alarms caused by pressure fluctuations.

[0012] Furthermore, the isolation portion is provided with a mounting groove coaxial with the mounting hole, and the lower end of the sealing member is located in the mounting groove.

[0013] Furthermore, a limit block is provided on the inner wall of the valve housing, and a positioning block is provided on the valve stem.

[0014] Furthermore, the second mounting hole is a stepped hole, a sealing portion protrudes outward from the upper end of the valve housing, and a second sealing ring is provided between the sealing portion and the second mounting hole.

[0015] Furthermore, the second mounting hole is located on the side wall of the water inlet cavity, and the through hole is connected to the water inlet cavity.

[0016] Furthermore, the second mounting hole is located on the side wall of the water outlet cavity, and the through hole is connected to the water outlet cavity.

[0017] Compared with the prior art, the technical effect of the present invention is as follows: the interior of the valve body is divided into a water inlet chamber and a water outlet chamber by an isolation part, and the size of the water hole is opened by rotating the movable plate and the fixed plate. The size of the water hole can control the size of the water replenishment pressure. The planes of the movable plate and the fixed plate abut against the rotating structure to make the water flow channel linearly gradient, reducing the water hammer effect and pressure oscillation, and the pressure sensor is installed at one end of the water outlet chamber to avoid the interference of the water flow disturbance area of the water inlet chamber and the valve core action on the pressure detection, so that the pressure sensor can capture the real pressure changes in the closed heating or circulating water system in real time and accurately, thereby improving the response speed and accuracy of the water replenishment control and reducing false alarms caused by pressure fluctuations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 1 is a cross-sectional view of an embodiment of the present invention.

[0019] Figure 2 This is an enlarged view of point A in Example 1 of the present invention.

[0020] Figure 3 It is an exploded view of embodiment 1 of the present invention.

[0021] Figure 4 It is a three-dimensional diagram of a one-way water flow member according to a first embodiment of the present invention.

[0022] Figure 5 Schematic diagram of a valve stem and a valve housing according to a first embodiment of the present invention.

[0023] Figure 6 It is a cross-sectional view of a water inlet seat according to an embodiment of the present invention.

[0024] Figure 7 It is a cross-sectional view of embodiment 2 of the present invention.

[0025] Figure 8 It is an enlarged view of point B in Example 2 of the present invention.

[0026] Figure numbers: 1. Valve body; 101. Water inlet chamber; 102. Water outlet chamber; 103. Isolation part; 104. Mounting hole 1; 105. Mounting hole 2; 106. Mounting slot; 2. Intelligent controller; 201. Fixing part; 3. Pressure sensor; 4. Water inlet seat; 401. Water guide; 402. Guide hole; 403. Arc groove; 5. One-way water flow device; 501. One-way fixing seat; 5011. Water hole; 502. One-way water flow part; 502 1. Arc plate; 5022. Guide rod; 5023. Arc claw; 503. Return spring; 6. Stator; 601. Water hole; 602. Sealing part; 7. Moving plate; 8. Valve stem; 801. Positioning block; 9. Circlip; 10. Sealing ring 1; 11. Valve housing; 1101. Through hole; 1102. Limit block; 1103. Sealing part; 12. Sealing element; 13. Fixing element; 14. Sealing ring 2; 15. Sealing ring 3; 16. Transition water storage space. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0028] It should be noted that the descriptions of the present invention regarding directions such as "up", "down", "left", "right", "top" and "bottom" are all defined based on the relationships between the orientations or positions shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0029] Example 1: According to Figures 1 to 6 As shown, an intelligent leak-proof water supply valve includes a valve body 1, to which an intelligent controller 2 and a pressure sensor 3 are fixedly connected, the intelligent controller 2 is electrically connected to the pressure sensor 3, and a water inlet chamber 101, a water outlet chamber 102 and an isolation portion 103 isolating the water inlet chamber 101 from the water outlet chamber 102 are provided in the valve body 1, and the pressure sensor 3 is installed in the water outlet chamber 102.

[0030] The isolating portion 103 is provided with a mounting hole 104, and only the mounting hole 104 can connect the water inlet chamber 101 and the water outlet chamber 102. The valve body 1 is provided with a mounting hole 2 105 opposite to the mounting hole 104. The valve housing 11 is sealed and fixed in the mounting hole 2 105. The valve housing 11 is provided with a valve stem 8, a movable plate 7, a fixed plate 6 and a water inlet seat 4 from top to bottom. A sealing member 12 is embedded in the outer periphery of the water inlet seat 4. The lower end of the sealing member 12 is sealed against the isolating portion 103, the outer periphery of the sealing member 12 is sealed against the valve housing 11, and the upper end of the sealing member 12 is sealed against the stator 6. The intelligent controller 2 includes a fixing portion 201, and a fixing member 13 is movably sleeved outside the fixing portion 201. The lower end of the fixing portion 201 is embedded in the mounting hole 2 105 and abuts against the upper end of the valve housing 11. The fixing member 13 is threadedly fixed to the valve body 1, and a through hole 1101 is provided on the side wall of the valve housing 11. The isolation portion 103 is provided with a mounting groove 106 coaxial with the mounting hole, and the lower end of the seal 12 is located within the mounting groove 106. The second mounting hole 105 is a stepped hole. A sealing portion 1103 protrudes outward from the upper end of the valve housing 11. A second sealing ring 14 is provided between the sealing portion 1103 and the second mounting hole 105. A limit block 1102 is provided on the inner wall of the valve housing 11, and a positioning block 801 is provided on the valve stem 8. The limit blocks 1102 are symmetrically arranged in pairs, and the positioning blocks 801 are also symmetrically arranged in pairs. The cooperation between the limit blocks 1102 and the positioning blocks 801 allows the valve stem 8 to rotate 90 degrees. The valve stem 8 and the valve housing 11 are sealed by a third sealing ring 15.

[0031] The water inlet seat 4 is sealed and fixedly connected in the mounting hole 104, and a one-way water flow device 5 is provided in the water inlet seat 4. A stator 6 is sealed and fixed above the water inlet seat 4, and a movable plate 7 is abutted against the stator 6 through a plane. A valve stem 8 is fixedly connected above the movable plate 7, and the valve stem 8 is fixedly connected to the intelligent controller 2. A water flow hole 601 and a sealing part 602 are provided on the stator 6, and the movable plate 7 and the stator 6 open or close the water flow hole 601 by rotating in coordination.

[0032] The water inlet seat 4 is formed with a water flow guide portion 401, and the one-way water flow device 5 includes a one-way fixed seat 501 and a one-way water flow component 502. The one-way fixed seat 501 is sealed and fixed to the inner wall of the water inlet seat 4 by a retaining spring 9 and a sealing ring 10. The one-way water flow component 502 is located between the water flow guide portion 401 and the one-way fixed seat 501. The one-way water flow component 502 moves up and down to abut against or away from the one-way fixed seat 501. The one-way fixing seat 501 has a water hole 5011 in the middle. The one-way water flow member 502 includes a circular arc plate 5021, a guide rod 5022 formed in the middle of the circular arc plate 5021, and arc-shaped claws 5023 formed at the upper end of the circular arc plate 5021 and protruding outward. There are at least two arc-shaped claws 5023, which are evenly distributed around the circumference. The water flow guide 401 has a guide hole 402 in the middle, through which the guide rod 5022 passes. A return spring 503 is sleeved around the outer circumference of the guide rod 5022. The inner circumferential wall of the water inlet seat 4 is provided with an arc-shaped groove 403 that gradually expands toward the water flow guide 401. The upper ends of the arc-shaped claws 5023 abut against the sidewalls of the arc-shaped groove 403. After being subjected to high-pressure water flow, the arc plate 5021 compresses the return spring 503, and the arc claw 5023 slides along the arc groove 403, separating the arc plate 5021 from the one-way fixing seat 501. Water flows from the water hole 5011 into the water outlet chamber 102. When the pressure in the water outlet chamber reaches equilibrium, the arc plate 5021 abuts against the sealed one-way fixing seat 501, restricting the flow of water. The one-way water flow device 5 is located below the stator 6. When the movable plate 7 closes the stator 6, a sealed transition water storage space 16 is formed between the one-way water flow device 502 and the stator 6. The transition water storage space 16 can maintain the internal and external water pressure difference of the one-way water flow device 502, allowing the one-way water flow device 502 to remain in a relaxed state when not in use, thereby increasing its service life.

[0033] The second mounting hole 105 is located on the side wall of the water outlet chamber 102. The second mounting hole 105 is connected to the water outlet chamber 102, connecting the through hole 1101 on the valve housing 11 with the water outlet chamber 102. The water entering the water inlet chamber 101 first passes through the water inlet seat 4 and then flows into the valve housing 11 and then into the water outlet chamber 102. The high-pressure water pressure first passes through the one-way water flow channel formed between the one-way fixing seat 501 and the one-way water pass 502, which can slow down the water flow rate and reduce the water flow disturbance in the water outlet chamber 102, making the water inlet in the water outlet air chamber more stable, so that the pressure sensor 3 can better feedback the pressure in the pipe to the intelligent controller 2. The intelligent controller 2 can more sensitively and accurately capture the pressure in the pipe to replenish water to the heating system.

[0034] Example 2: According to Figure 7 and Figure 8As shown, the difference from the first embodiment is that the second mounting hole 105 is set on the side wall of the water inlet chamber 101, and the through hole 1101 on the valve housing 11 is connected to the water inlet chamber 101. The water entering the water inlet chamber 101 enters the valve housing 11 through the through hole 1101, and the water in the valve housing 11 stably enters the water outlet chamber 102 through the water inlet seat 4, so that the water flow in the water outlet chamber 102 reduces the pressure fluctuation caused by disturbance, so that the pressure sensor 3 can better feedback the pressure in the pipe to the intelligent controller 2. The intelligent controller 2 can capture the pressure in the pipe more sensitively and accurately, and replenish water to the heating system. The water entering the water inlet chamber 101 is first controlled by the moving plate 7 to control its on and off, and then flows to the water inlet seat 4, which can better protect the one-way water pass 502 and the reset spring 503 in the water inlet seat 4, avoid them from being squeezed by high-pressure water pressure for a long time, and extend their service life.

[0035] The present invention is a multifunctional valve device that integrates leak prevention, backflow prevention, and automatic water replenishment. When system pressure drops, the intelligent controller 2 opens the rotor 7 to initiate water replenishment. After external water is injected, the system pressure returns to a threshold, and water replenishment stops. The intelligent controller 2 then closes the rotor 7. During the replenishment process, the one-way water passage 502 both blocks backflow and stabilizes the water flow, reducing manual intervention, improving safety, extending equipment life, and conserving energy and protecting the environment. Applications include HVAC, solar water heating systems, and industrial circulating water systems. In solar water heating systems, this valve is installed at the cold water inlet. When hot water backflows, the backflow prevention function activates. If the system pressure drops due to evaporation or leakage, cold water is automatically replenished. This valve device, installed in the water supply pipeline of a closed-loop heating or cooling system, automatically maintains the system pressure at a set value, integrating the functions of a pressure reducing valve, a shut-off valve, and a check valve. The intelligent controller 2 adjusts the rotational angle between the rotor 7 and the stator 6 to open the water passage 601 and control the water replenishment pressure. When the desired water replenishment pressure is reached, the intelligent controller 2 automatically closes.

[0036] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection defined by the claims of the present invention.

Claims

1. An intelligent leak-proof water supply valve, comprising a valve body (1), wherein an intelligent controller (2) and a pressure sensor (3) are fixedly connected to the valve body (1), and the intelligent controller (2) is electrically connected to the pressure sensor (3), characterized in that: The valve body (1) is provided with a water inlet chamber (101), a water outlet chamber (102) and an isolation portion (103) for isolating the water inlet chamber (101) and the water outlet chamber (102). The isolation portion (103) is provided with a mounting hole (104). The mounting hole (104) is connected to the water inlet chamber (101) and the water outlet chamber (102). The pressure sensor (3) is installed in the water outlet chamber (102). The mounting hole (104) is sealed and fixedly connected to the water inlet seat (4). A one-way water flow device (5) is provided in the water inlet seat (4), a fixed plate (6) is sealed and fixed above the water inlet seat (4), a movable plate (7) is abutted against the upper surface of the fixed plate (6) through a plane, a valve stem (8) is fixedly connected to the upper surface of the movable plate (7), the valve stem (8) is fixedly connected to the intelligent controller (2), a water flow hole (601) and a blocking portion (602) are provided on the fixed plate (6), and the movable plate (7) and the fixed plate (6) open or close the water flow hole (601) by rotating in coordination.

2. The intelligent leak-proof water supply valve according to claim 1, characterized in that: The water inlet seat (4) is formed with a water flow guide portion (401), and the one-way water flow device (5) includes a one-way fixed seat (501) and a one-way water flow member (502). The one-way fixed seat (501) is sealed and fixed to the inner peripheral wall of the water inlet seat (4) through a retaining spring (9) and a sealing ring (10). The one-way water flow member (502) is located between the water flow guide portion (401) and the one-way fixed seat (501). The one-way water flow member (502) abuts against or moves away from the one-way fixed seat (501) by moving up and down.

3. The intelligent leak-proof water supply valve according to claim 2, characterized in that: The one-way fixing seat (501) has a water hole (5011) in the middle, the one-way water flow member (502) comprises a circular arc plate (5021), a guide rod (5022) formed in the middle of the circular arc plate (5021), and an arc-shaped claw (5023) formed at the upper end of the circular arc plate (5021) and protruding outward, there are at least two arc-shaped claws (5023) and they are evenly distributed in the circumferential direction, the water flow guide portion (401) has a guide hole (402) in the middle, the guide rod (5022) passes through the guide hole (402), and a reset spring (503) is sleeved on the outer circumference of the guide rod (5022).

4. The intelligent leak-proof water supply valve according to claim 3, characterized in that: An arc-shaped groove (403) is provided on the inner peripheral wall of the water inlet seat (4) and gradually expands toward the water guide portion (401). The upper end of the arc-shaped claw (5023) abuts against the side wall of the arc-shaped groove (403).

5. The intelligent leak-proof water supply valve according to any one of claims 1 to 4, characterized in that: The valve body (1) is provided with a second mounting hole (105) opposite to the first mounting hole (104), and a valve housing (11) is sealed and fixed in the second mounting hole (105). The valve housing (11) is provided with a valve stem (8), a moving plate (7), a fixed plate (6) and a water inlet seat (4) from top to bottom. A sealing member (12) is embedded in the outer periphery of the water inlet seat (4), and the lower end of the sealing member (12) is sealed against the isolation portion (103). The outer periphery of the sealing member (12) is The intelligent controller (2) is sealed against the valve housing (11), the upper end of the sealing member (12) is sealed against the stator (6), the intelligent controller (2) includes a fixing portion (201), a fixing member (13) is movably sleeved outside the fixing portion (201), the lower end of the fixing portion (201) is embedded in the second mounting hole (105) and is in contact with the upper end of the valve housing (11), the fixing member (13) is threadedly fixedly connected to the valve body (1), and a through hole (1101) is provided on the side wall of the valve housing (11).

6. The intelligent leak-proof water supply valve according to claim 5, characterized in that: The isolation portion (103) is provided with a mounting groove (106) coaxial with the mounting hole, and the lower end of the sealing member (12) is located in the mounting groove (106).

7. The intelligent leak-proof water supply valve according to claim 6, characterized in that: A limiting block (1102) is provided on the inner wall of the valve housing (11), and a positioning block (801) is provided on the valve stem (8).

8. The intelligent leak-proof water supply valve according to claim 7, characterized in that: The second mounting hole (105) is a stepped hole, and a sealing portion (1103) protrudes outward from the upper end of the valve housing (11), and a second sealing ring (14) is provided between the sealing portion (1103) and the second mounting hole (105).

9. The intelligent leak-proof water supply valve according to claim 5, characterized in that: The second mounting hole (105) is located on the side wall of the water inlet chamber (101), and the through hole (1101) is connected to the water inlet chamber (101).

10. The intelligent leak-proof water supply valve according to claim 5, characterized in that: The second mounting hole (105) is located on the side wall of the water outlet cavity (102), and the through hole (1101) is connected to the water outlet cavity (102).

Images