Pressure boosting valve and water heater comprising same

Abstract

The application discloses a booster valve and a water heater comprising the same. The booster valve comprises a valve body, a first pipeline and a second pipeline which are communicated with each other through a communication port at both ends of the valve body; a driving mechanism which is arranged at the first pipeline and close to the liquid outlet thereof, and through which the fluid can pass and the driving mechanism can be pushed by the fluid along the flow direction of the fluid in the first pipeline; and a flap mechanism which is arranged at the communication port and connected with the driving mechanism, and the flap mechanism can be driven by the driving mechanism to open and close the communication port. The opening and closing control of the communication port is realized, the sealing condition of the closed communication port is ensured, the fluid flow condition between the first pipeline and the second pipeline is adjusted, and the pressure effect required when the fluid is discharged from the liquid outlet of the first pipeline is realized. In addition, the driving mode of the driving mechanism driving the flap mechanism can realize the quick response of the opening and closing of the communication port, and the working efficiency of the booster valve is improved.

Description

Technical Field

[0001] This invention relates to a pressure boosting valve and a water heater including the same. Background Technology

[0002] In existing technologies, water heaters typically use a pump to circulate hot water through the pipes to meet customer needs. A one-way valve is installed near the user's water outlet to connect the hot and cold water pipes when the user is not using the outlet, thus achieving a preheating effect. A pressurization function is also added. However, conventional one-way valves cannot completely seal the valve core's passage; during pressurization, most of the water continues to circulate through the valve core, making this pressurization method ineffective.

[0003] Therefore, there is an urgent need for a water heater with a significant pressure boosting effect to meet users' needs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defect of poor pressure boosting effect of water heaters in the prior art, and to provide a pressure boosting valve and a water heater including the same.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A pressure boosting valve, the pressure boosting valve comprising:

[0007] The valve body has a first pipe and a second pipe that are connected to each other through a communication port at both ends.

[0008] A drive mechanism is disposed in the first pipeline and near its outlet. Fluid can pass through the drive mechanism and the drive mechanism can be pushed by the fluid along the flow direction of the fluid in the first pipeline.

[0009] A flap mechanism is provided at the communication port and connected to the drive mechanism. The flap mechanism can be driven by the drive mechanism to open and close the communication port.

[0010] In this technical solution, this structural form enables the opening and closing control of the connecting port, ensuring a tight seal when the port is closed. This regulates the fluid flow between the first and second pipelines, achieving the required pressure when fluid exits from the outlet of the first pipeline. Furthermore, the use of a drive mechanism to drive the flap mechanism allows for rapid response in opening and closing the connecting port, improving the working efficiency of the booster valve.

[0011] Preferably, when the outlet of the first pipeline is in the open state, the driving mechanism moves along the flow direction of the fluid in the first pipeline under the pushing action of the fluid and moves away from the initial position of the driving mechanism and closer to the first position of the driving mechanism. The driving mechanism drives the flap mechanism to move away from the initial position of the flap mechanism and gradually move towards the closed position of closing the communication port.

[0012] When the outlet of the first pipeline is closed, the drive mechanism moves in the opposite direction of the fluid flow direction by its own gravity and moves away from the first position of the drive mechanism and closer to the initial position of the drive mechanism. The drive mechanism drives the flap mechanism to move away from the closed position of the flap mechanism and gradually move towards the initial position of opening the communication port.

[0013] In this technical solution, this structural form is adopted, and the drive mechanism can automatically drive the flap mechanism to control the opening and closing of the connection port according to the fluid flow under different conditions. In this way, the pressure boosting valve can automatically adjust the opening and closing of the connection port according to the fluid flow, realizing safe and reliable fluid control and achieving the required pressure boosting effect.

[0014] Preferably, the drive mechanism includes:

[0015] impeller;

[0016] A drive rod, connected to the impeller, extends along the flow direction of the fluid in the first pipeline, and one end of the drive rod is connected to the flap mechanism.

[0017] In this technical solution, by combining the impeller and the drive rod and their synergistic effect, the flapping mechanism can be driven according to different fluid flow states. This allows for precise control of the flapping mechanism's opening and closing of the connection port, thereby changing the state of the connection port and achieving precise control of the booster valve connection port. This structure is simple, reliable, and suitable for various fluid control scenarios.

[0018] Preferably, the driving mechanism includes a driving rod connected to the flap mechanism and extending along the flow direction of the fluid in the first pipeline.

[0019] A support member is provided on the inner wall of the first pipeline and on the side of the drive mechanism near the flip mechanism. The end of the drive rod near the flip mechanism passes through the support member and is connected to the flip mechanism.

[0020] And / or, a limiting member is provided on the inner wall surface of the first pipeline and on the side of the drive mechanism away from the flip mechanism, and the end of the drive rod away from the flip mechanism passes through the limiting member.

[0021] In this technical solution, this structural form, by adding support components, serves two purposes: firstly, it supports the drive mechanism as it moves downwards under its own weight, and secondly, it bears the load of the drive mechanism when there is no fluid flowing through it, increasing the overall stability of the booster valve structure. Thirdly, it prevents the drive mechanism from moving downwards under its own weight from leaving the range of motion of its driving flap mechanism. Furthermore, by adding limiting components, it prevents the drive mechanism from moving out of the range of motion of its driving flap mechanism when pushed by fluid. By adding limiting and support components, the overall structural strength of the booster valve and its normal operation are ensured. This structural design is simple and convenient, and can adapt to application requirements under different working conditions.

[0022] Preferably, when the flap mechanism closes the communication port, at least a portion of the cross-sectional dimension of the flap mechanism is not smaller than the cross-sectional dimension of the communication port.

[0023] In this technical solution, this structural form is adopted to ensure the integrity of the flap mechanism blocking the connection port, and to prevent fluid from entering the second pipeline through the connection port due to the incomplete blocking of the connection port by the flap mechanism when fluid is flowing in the first pipeline.

[0024] Preferably, the driving mechanism includes a driving rod extending along the flow direction of the fluid in the first pipeline and connected to the flap mechanism. The flap mechanism includes a connector connected to the driving rod and a blocking member connected to the connector and used to open and close the communication port. The connector drives the blocking member to move under the drive of the driving rod to open and close the communication port.

[0025] In this technical solution, when the drive rod moves along the fluid flow direction, the connecting member moves accordingly, thereby pushing the blocking member to open or close the connection port. Thus, by controlling the movement of the drive rod, the position of the blocking member relative to the connection port can be precisely controlled, thereby realizing the opening and closing of the connection port. This structure is simple and reliable, and suitable for various fluid control applications.

[0026] Preferably, one end of the blocking member is rotatably connected to the inner wall of the pipeline near the connection port, and the other end of the blocking member is connected to the connector. The blocking member opens and closes the connection port by flipping.

[0027] In this technical solution, by applying force or torque to the connecting member through the driving component, the connecting member can drive the blocking member to open and close the connection port in a flipping manner. This flipping opening and closing method allows for a larger opening and closing angle and a wider blocking range. Compared to other opening and closing methods, the flipping method of the blocking member allows for faster and more precise control of the opening and closing state of the connection port, thus achieving more accurate fluid control. Furthermore, the flipping design of the blocking member can improve the sealing performance of the booster valve. When the blocking member is fully closed, it can fit tightly against the inner wall of the pipeline, effectively preventing fluid from entering the second pipeline through the connection port and causing leakage and pressure loss.

[0028] Preferably, when the blocking member closes the communication port, the extending direction of the blocking member is the same as the extending direction of the driving rod.

[0029] In this technical solution, the position of the flap mechanism relative to the driving component is further defined, that is, the position of the blocking component relative to the driving component. The advantage of adopting this structural form is that it can reduce the driving force of the driving component driving the connecting component and then driving the blocking component, reduce the stress on the driving component, avoid problems such as breakage of the driving component during the driving process, and ensure the integrity and normal operation of the driving mechanism.

[0030] Preferably, the drive rod is provided with a limiting part connected to the connector, and the connector is provided with a limiting groove for the limiting part to move, the extension range of the limiting groove being not less than the range in which the drive rod moves along the flow direction of the fluid in the first pipeline.

[0031] In this technical solution, by setting a limiting part on the drive rod and a limiting groove on the connector, the connection relationship between the connector and the drive component is further limited, ensuring that the drive rod will not exceed the range of movement along the fluid flow direction when it drives the blocking component to open and close the communication port. This effectively limits the range of movement of the drive rod and ensures that the movement of the drive rod is within a safe and controllable range.

[0032] Preferably, a first boss and a second boss are arranged sequentially at intervals on the peripheral side wall of the drive rod along the flow direction of the fluid in the first pipeline, and the limiting part is disposed between the first boss and the second boss.

[0033] When fluid passes through the drive mechanism and is pushed by the fluid along the flow direction of the first pipeline, the first boss drives the limiting part to move within the limiting groove.

[0034] When no fluid flows through the drive mechanism and it moves in the opposite direction of the fluid flow due to its own gravity, the second boss drives the limiting part to move within the limiting groove.

[0035] In this technical solution, this structural form is adopted. By adding a first boss and a second boss arranged sequentially and at intervals along the fluid flow direction on the peripheral wall of the drive rod, a certain force is borne and distributed when the drive rod drives the connecting part. Through the combined action of the first boss and the second boss and the drive rod, the movement of the connecting part is achieved, thereby enhancing the integrity of the drive rod structure and the overall structural strength of the booster valve.

[0036] Preferably, an abutment protrusion is provided at one end of the drive rod near the flip mechanism, and the flip mechanism is further provided with an abutment member that is adapted to the abutment protrusion and connected to the blocking member;

[0037] When the blocking member closes the communication port, the abutting member abuts against the abutting protrusion.

[0038] In this technical solution, this structural form ensures that the connecting member drives the blocking member to close the communication port, while the addition of a stopping member further enhances the stability of the blocking member's fit on the communication port. Through the dual function of the connecting member and the stopping member, the integrity of the blocking member's fit on the communication port is guaranteed, and the sealing performance of the communication port closure is enhanced.

[0039] A water heater, comprising a pressure boosting valve as described in any of the above claims, and hot water pipes and cold water pipes connected to and disposed at both ends of the pressure boosting valve.

[0040] The inlet of the first pipeline is connected to the hot water pipeline, and the inlet of the second pipeline is connected to the cold water pipeline.

[0041] In this technical solution, this structural form connects the first pipe, equipped with a drive mechanism, to the hot water pipe of the water heater. On one hand, when the outlet of the first pipe is closed (i.e., no fluid flows through the drive mechanism), the connecting port is open. This allows hot water flowing from the inlet of the first pipe into the pressure-boosting valve to enter the second pipe through the connecting port and circulate within the pressure-boosting system, preheating the system. This ensures that when the user opens the hot water pipe, the desired hot water flows out immediately without waiting, improving the user experience. On the other hand, this structural form allows for the opening and closing control of the connecting port, thereby regulating the hot water flow between the first and second pipes to achieve the required pressure when hot water is discharged from the outlet of the first pipe. Therefore, in this technical solution, the pressure-boosting valve increases the water pressure of the water heater, increases the flow rate and stabilizes the hot water supply, keeping the outflow pressure within an ideal range and avoiding problems such as unstable or excessively low hot water supply pressure, thus maximizing the user experience.

[0042] The positive and progressive effects of this invention are as follows:

[0043] 1. This pressure booster valve controls the opening and closing of the connecting port, ensuring a tight seal and thus regulating fluid flow between the first and second pipelines to achieve the required pressure when fluid exits from the outlet of the first pipeline. Furthermore, the use of a drive mechanism to power the flapper mechanism allows for rapid response in opening and closing the connecting port, improving the valve's efficiency.

[0044] 2. This water heater connects a first pipe equipped with a drive mechanism to the water heater's hot water pipe. On one hand, when the outlet of the first pipe is closed (i.e., no fluid flows through the drive mechanism), the connecting port is open. This allows hot water flowing from the inlet of the first pipe into the pressure-boosting valve to enter the second pipe through the connecting port and circulate within the pressure-boosting system, preheating the system. This ensures that when the user opens the hot water pipe, the desired hot water flows out immediately without waiting, improving the user experience. On the other hand, this structure allows for control of the opening and closing of the connecting port, thereby regulating the hot water flow between the first and second pipes to achieve the required pressure when hot water is discharged from the outlet of the first pipe. Therefore, in this technical solution, the pressure-boosting valve increases the water pressure of the water heater, increases the flow rate and stabilizes the hot water supply, keeping the outflow pressure within an ideal range and avoiding problems such as unstable or excessively low hot water supply pressure, thus maximizing the user experience. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure in Embodiment 1 of the present invention, in which both the driving mechanism and the flipping mechanism are in the initial position.

[0046] Figure 2 for Figure 1 A magnified view of section A in the image.

[0047] Figure 3 This is a schematic diagram of the structure of the drive mechanism in its first position and the flipping mechanism in its closed position in Embodiment 1 of the present invention.

[0048] Figure 4 This is a simplified structural diagram of the water heater in Embodiment 2 of the present invention.

[0049] Explanation of reference numerals in the attached figures:

[0050] Pressure booster valve 100

[0051] Valve body 11

[0052] First pipeline 111

[0053] The outlet of the first pipeline is 1111.

[0054] Inlet 1112 of the first pipeline

[0055] Second pipe 112

[0056] The outlet of the second pipeline is 1121.

[0057] Inlet 1122 of the second pipeline

[0058] Connector 113

[0059] Drive mechanism 12

[0060] Impeller 121

[0061] Drive lever 122

[0062] First protrusion 1221

[0063] Second protrusion 1222

[0064] Abutting protrusion 1223

[0065] Flip-up mechanism 13

[0066] Connector 131

[0067] Limiting groove 1311

[0068] Blocking component 132

[0069] Blocking protrusion 1321

[0070] Attachment 133

[0071] Support component 14

[0072] Limiting component 15

[0073] Water heater 200

[0074] Hot water pipe 21

[0075] Cold water pipe 22

[0076] Water pump 23

[0077] The direction of fluid flow in the first pipeline is X.

[0078] The fluid flow direction in the second pipeline is Y.

[0079] Fluid flow direction Z during circulation

[0080] Initial position P1 of the drive mechanism

[0081] First position P2 of the drive mechanism

[0082] Initial position Q1 of the flap mechanism

[0083] Closed position Q2 of the flap mechanism

[0084] Fluid flow direction M in hot water pipes

[0085] The direction of fluid flow in the cold water pipeline is N. Detailed Implementation

[0086] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments.

[0087] Example 1

[0088] like Figures 1-3 As shown, this embodiment discloses a pressure boosting valve 100, which includes a valve body 11 and a first pipeline 111 and a second pipeline 112 that are interconnected by a communication port 113 at both ends of the valve body 11.

[0089] The pressure boosting valve 100 also includes a drive mechanism 12 and a flap mechanism 13.

[0090] The drive mechanism 12 is located in the first pipe 111 and near the outlet 1111 of the first pipe. Fluid can pass through the drive mechanism 12 and the drive mechanism 12 can be pushed by the fluid along the flow direction of the fluid in the first pipe 111. Specifically, the fluid flows into the first pipe 111 from the inlet 1112 and passes through the drive mechanism 12 when it flows to the outlet 1111 of the first pipe. The fluid force pushes the drive mechanism 12 to move along the flow direction of the fluid.

[0091] The flap mechanism 13 is located at the connection port 113 where the first pipe 111 and the second pipe 112 are connected and is connected to the drive mechanism 12. The flap mechanism 13 can be driven by the drive mechanism 12 to open and close the connection port 113.

[0092] In this embodiment, this structural form enables the opening and closing control of the connecting port 113, ensuring the sealing of the connecting port 113 when closed. This regulates the fluid flow between the first pipe 111 and the second pipe 112, achieving the required pressure effect when fluid is discharged from the outlet 1111 of the first pipe. Furthermore, the use of the drive mechanism 12 to drive the flap mechanism 13 allows for rapid response in opening and closing the connecting port 113, improving the working efficiency of the pressure booster valve 100.

[0093] Specifically, in this embodiment, the fluid flow direction X of the first pipeline and the fluid flow direction Y of the second pipeline are as follows: Figure 1 As shown, the working mechanism of the pressure boosting valve 100 is as follows:

[0094] like Figure 3As shown, when the outlet 1111 of the first pipeline is in the open state, the drive mechanism 12 moves along the flow direction of the fluid in the first pipeline 111 under the push of the fluid and moves away from the initial position P1 of the drive mechanism and moves closer to the first position P2 of the drive mechanism. The drive mechanism 12 drives the flap mechanism 13 to move away from the initial position Q1 of the flap mechanism and gradually move towards the closed position of the closed connection port 113.

[0095] like Figure 1 As shown, when the outlet 1111 of the first pipeline is in a closed state, the drive mechanism 12 moves in the opposite direction of the fluid flow direction by its own gravity and moves away from the first position P2 of the drive mechanism and moves closer to the initial position P1 of the drive mechanism. The drive mechanism 12 drives the flap mechanism 13 to move away from the closed position Q2 of the flap mechanism and gradually move towards the initial position of the open connection 113.

[0096] In this embodiment, by adopting this working mechanism, the drive mechanism 12 can automatically drive the flap mechanism 13 to control the opening and closing of the connection port 113 according to the fluid flow under different conditions. In this way, the pressure boosting valve 100 can automatically adjust the opening and closing of the connection port 113 according to the fluid flow, thereby achieving safe and reliable fluid control and achieving the required pressure boosting effect.

[0097] Preferably, the drive mechanism 12 includes an impeller 121 and a drive rod 122.

[0098] In this embodiment, the impeller 121 includes a plurality of helical blades. Therefore, when the fluid passes through the impeller 121, it can flow out from the gap between the blades and the impeller 121 can move along the flow direction of the fluid by pushing the blades.

[0099] Furthermore, the drive rod 122 is connected to the impeller 121. In this embodiment, the drive rod 122 is disposed through the central axis of the impeller 121. Meanwhile, the impeller 121 extends along the flow direction of the fluid in the first pipeline 111, and one end of the drive rod 122 is connected to the flap mechanism 13.

[0100] In this embodiment, through the combination of impeller 121 and drive rod 122 and their synergistic effect, the flap mechanism 13 can be driven according to different fluid flow states, accurately controlling the opening and closing of the connecting port 113 by the flap mechanism 13, thereby changing the state of the connecting port 113 and achieving precise control of the connecting port 113 of the booster valve 100. This structure is simple and reliable, and suitable for various fluid control scenarios.

[0101] Preferably, a support member 14 is provided on the inner wall surface of the first pipeline 111 and on the side of the drive mechanism 12 near the flip mechanism 13. The end of the drive rod 122 near the flip mechanism 13 passes through the support member 14 and is connected to the flip mechanism 13.

[0102] Meanwhile, a limiting member 15 is provided on the inner wall of the first pipeline 111 and on the side of the drive mechanism 12 away from the flip mechanism 13, and the limiting member 15 passes through the end of the drive rod 122 away from the flip mechanism 13.

[0103] In this embodiment, by adding a support member 14, the structure is designed to support the drive mechanism 12 when it moves downward under its own weight and to support the drive mechanism 12 when there is no fluid passing through it, thereby increasing the overall stability of the pressure booster valve 100. On the other hand, it prevents the drive mechanism 12 from moving downward under its own weight from leaving the range of motion of its drive flap mechanism 13.

[0104] Meanwhile, by adding a limiting component 15, the driving mechanism 12 is prevented from moving out of the range of motion of its driving flap mechanism 13 when pushed by the fluid. By adding the limiting component 15 and the support component 14, the overall structural strength of the pressure booster valve 100 and its normal operation are ensured. This structural design is simple and convenient and can adapt to the application requirements under different working conditions.

[0105] In this embodiment, the support member 14 and the limiting member 15 are double-ring structures. Specifically, the outer ring of the support member 14 and the limiting member 15 is fixedly disposed on the inner wall surface of the first pipeline 111, and the inner ring of the support member 14 and the limiting member 15 is through which the drive rod 122 passes. The outer ring and the inner ring of the support member 14 and the limiting member 15 are connected by other connecting members 131, and a through hole for fluid flow is provided between the outer ring and the inner ring. Thus, fluid can flow into the drive mechanism 12 through the through hole of the support member 14 and the limiting member 15, and then flow out from the through hole and be discharged from the outlet 1111 of the first pipeline.

[0106] In other embodiments, the specific structural forms of the support member 14 and the limiting member 15 can be set as needed, or they can be protrusions only set on the inner wall surface of the first pipeline or bosses extending along the periphery of the inner wall surface of the first pipeline, so as to provide support and limiting function for the drive mechanism 12 while allowing fluid to pass through.

[0107] Furthermore, in other embodiments, the limiting member 15 may be provided only on the inner wall surface of the first pipeline 111, on the side of the drive mechanism 12 away from the flip mechanism 13, or the supporting member 14 may be provided only on the inner wall surface of the first pipeline 111, on the side of the drive mechanism 12 close to the flip mechanism 13. The specific configuration can be adjusted as needed to meet the normal operating requirements of the pressure boosting valve 100.

[0108] Preferably, when the flap mechanism 13 closes the connecting port 113, at least part of the cross-sectional dimension of the flap mechanism 13 is not smaller than the cross-sectional dimension of the connecting port 113. This ensures the integrity of the flap mechanism 13 in blocking the connecting port 113 and prevents fluid from entering the second pipeline through the connecting port 113 due to the incomplete blocking of the connecting port 113 when there is fluid flowing in the first pipeline.

[0109] Specifically, such as Figure 2 As shown, in this embodiment, a blocking protrusion 1321 is provided on the side of the blocking member 132 near the connecting port 113. The blocking member 132 drives the blocking protrusion 1321 to block the connecting port 113 to control the closure of the connecting port 113. Therefore, the cross-sectional dimensions of the blocking protrusion 1321 are adapted to the cross-sectional dimensions of the connecting port 113. Thus, in this embodiment, the blocking protrusion 1321 is a trapezoidal structure. The end connecting the trapezoidal structure and the blocking member 132 is the longest side, and the cross-sectional dimension of the longest side is not less than the cross-sectional dimension of the connecting port 113. The end of the trapezoidal structure away from the blocking member 132 is the shortest side, and the cross-sectional dimension of the shortest side is not greater than the cross-sectional dimension of the connecting port 113.

[0110] Preferably, the flip mechanism 13 includes a connector 131 connected to the drive rod 122 and a blocking member 132 connected to the connector 131 and opening and closing the communication port 113. The connector 131 drives the blocking member 132 to move under the drive of the drive rod 122 to open and close the communication port 113.

[0111] In this embodiment, when the drive rod 122 moves along the fluid flow direction, the connector 131 moves accordingly, thereby pushing the blocking member 132 to open or close the connection port 113. Thus, by controlling the movement of the drive rod 122, the position of the blocking member 132 relative to the connection port 113 can be controlled, thereby realizing the opening and closing of the connection port 113. This structure is simple and reliable, and suitable for various fluid control applications.

[0112] Furthermore, one end of the blocking member 132 is rotatably connected to the inner wall of the pipeline and near the connection port 113, that is, the blocking member 132 and the inner wall of the first pipeline 111 are connected by a rotating shaft, and the other end of the blocking member 132 is connected to the connecting member 131. The blocking member 132 opens and closes the connection port 113 in a flipping manner.

[0113] In this embodiment, by applying force or torque to the connector 131 through the driving component, the connector 131 can cause the blocking component 132 to open and close the communication port 113 in a flipping manner. This flipping opening and closing method allows for a larger opening and closing angle and a wider blocking range. Compared to other opening and closing methods, the flipping method of the blocking component 132 allows for faster and more precise control of the opening and closing state of the communication port 113, thereby achieving more accurate fluid control. Furthermore, the flipping design of the blocking component 132 can also improve the sealing performance of the pressure booster valve 100. When the blocking component 132 completely closes the communication port 113, it can fit tightly against the inner wall of the pipeline, effectively preventing fluid from entering the second pipeline through the communication port 113 and causing leakage and pressure loss.

[0114] In this embodiment, when the blocking member 132 closes the communication port 113, the extending direction of the blocking member 132 is the same as the extending direction of the driving rod 122. Therefore, in this embodiment, the blocking member 132 and the connecting member 131 are not perpendicular, and the included angle between the blocking member 132 and the connecting member 131 bracket can be greater than 90° or less than 90°.

[0115] In this embodiment, the position of the flap mechanism 13 relative to the driving member is further defined, that is, the position of the blocking member 132 relative to the driving member. The advantage of adopting this structure is that it can reduce the driving force of the driving member driving the connecting member 131 and then driving the blocking member 132, reduce the stress on the driving member, avoid the problem of the driving member breaking during the driving process, and ensure the integrity and normal operation of the driving mechanism 12.

[0116] Preferably, such as Figure 2 As shown, a limiting part (not shown) connected to the connecting member 131 is provided on the drive rod 122, and a limiting groove 1311 for the limiting part to move is provided on the connecting member 131. The extension range of the limiting groove 1311 is not less than the range of movement of the drive rod 122 along the fluid flow direction of the first pipeline 111. By further limiting the connection relationship between the connecting member 131 and the drive member, it is ensured that the drive rod 122 will not exceed the range of movement along the fluid flow direction when it drives the blocking member 132 to open and close the communication port 113. This effectively limits the range of movement of the drive rod 122 and ensures that the movement of the drive rod 122 is within a safe and controllable range.

[0117] Specifically, such as Figure 2 As shown, a first boss 1221 and a second boss 1222 are arranged sequentially at intervals on the peripheral side wall of the drive rod 122 along the flow direction of the fluid in the first pipe 111, and a limiting part is provided between the first boss 1221 and the second boss 1222.

[0118] When fluid passes through the drive mechanism 12 and is pushed by the fluid along the flow direction of the first pipeline 111, the first boss 1221 drives the limiting part to move within the limiting groove 1311.

[0119] When no fluid passes through the drive mechanism 12 and it moves in the opposite direction of the fluid flow direction due to its own gravity, the second boss 1222 drives the limiting part to move within the limiting groove 1311.

[0120] In this embodiment, this structural form is adopted, by adding a first boss 1221 and a second boss 1222 arranged sequentially at intervals along the fluid flow direction on the peripheral wall of the drive rod 122, so as to bear and disperse a certain force when the drive rod 122 drives the connecting member 131. Through the combined action of the first boss 1221 and the second boss 1222 and the drive rod 122, the movement of the connecting member 131 is realized, thereby enhancing the integrity of the drive rod 122 structure and the overall structural strength of the pressure booster valve 100.

[0121] Preferably, an abutment protrusion 1223 is provided at one end of the drive rod 122 near the flip mechanism 13, and the flip mechanism 13 is also provided with an abutment member 133 that is adapted to the abutment protrusion 1223 and connected to the blocking member 132.

[0122] When the blocking member 132 closes the connecting port 113, the abutting member 133 abuts against the abutting protrusion 1223. While ensuring that the connecting member 131 drives the blocking member 132 to close the connecting port 113, the addition of the abutting member further enhances the stability of the blocking member 132 fitting onto the connecting port 113. Through the dual action of the connecting member 131 and the abutting member, the integrity of the blocking member 132 fitting onto the connecting port 113 is ensured, and the sealing performance of the connecting port 113 when closed is enhanced.

[0123] Example 2

[0124] like Figure 4 As shown, Embodiment 2 discloses a water heater 200, which includes the pressure boosting valve 100 of Embodiment 1, and a hot water pipe 21 and a cold water pipe 22 connected to and disposed at both ends of the pressure boosting valve 100. The fluid flow direction M of the hot water pipe and the fluid flow direction N of the cold water pipe are as follows: Figure 4 As shown, the hot water pipes are pressurized by water pump 23.

[0125] The inlet 1112 of the first pipeline is connected to the hot water pipeline 21, the outlet 1111 of the first pipeline is connected to the hot water outlet at the user end, the inlet 1122 of the second pipeline is connected to the cold water pipeline 22, and the outlet 1121 of the second pipeline is connected to the cold water outlet at the user end.

[0126] In this embodiment, this structural form connects the first pipe 111, which is equipped with the drive mechanism 12, and the hot water pipe 21 of the water heater 200. On one hand, when the outlet 1111 of the first pipe is closed (i.e., no fluid passes through the drive mechanism 12), the connecting port 113 is open. This allows the hot water flowing into the booster valve 100 from the inlet 1112 of the first pipe to enter the second pipe 112 through the connecting port 113 and circulate within the booster system where the booster valve 100 is located. The specific direction of fluid flow during circulation is as follows: Figure 1 As shown, this preheating of the pressurization system allows users to directly access the desired hot water without waiting when they open the hot water pipe 21 at the user end, improving the user experience. Furthermore, this structure enables control of the opening and closing of the connection port 113, thereby regulating the hot water flow between the first pipe 111 and the second pipe 112 to achieve the required pressure when hot water is discharged from the outlet 1111 of the first pipe.

[0127] Therefore, in this embodiment, the pressure booster valve 100 can increase the water pressure of the water heater 200, increase the flow rate and stability of the hot water supply, and keep the outflow pressure within the ideal range, avoiding the problem of unstable or low hot water supply pressure, and maximizing the user experience.

[0128] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A pressure boosting valve, characterized in that, The pressure boosting valve includes: The valve body has a first pipe and a second pipe that are connected to each other through a communication port at both ends. A drive mechanism is disposed in the first pipeline and near its outlet. Fluid can pass through the drive mechanism and the drive mechanism can be pushed by the fluid along the flow direction of the fluid in the first pipeline. A flap mechanism is provided at the communication port and connected to the drive mechanism. The flap mechanism can be driven by the drive mechanism to open and close the communication port. When the outlet of the first pipeline is in the open state, the driving mechanism moves along the flow direction of the fluid in the first pipeline under the push of the fluid and moves away from the initial position of the driving mechanism and closer to the first position of the driving mechanism. The driving mechanism drives the flap mechanism to move away from the initial position of the flap mechanism and gradually move towards the closed position of closing the communication port. When the outlet of the first pipeline is closed, the drive mechanism moves in the opposite direction of the fluid flow direction by its own gravity and moves away from the first position of the drive mechanism and closer to the initial position of the drive mechanism. The drive mechanism drives the flap mechanism to move away from the closed position of the flap mechanism and gradually move towards the initial position of opening the communication port. The driving mechanism includes a driving rod extending along the flow direction of the fluid in the first pipeline and connected to the flap mechanism. The flap mechanism includes a connector connected to the driving rod and a blocking member connected to the connector and for opening and closing the communication port. The connector drives the blocking member to move under the drive of the driving rod to open and close the communication port. The drive rod is provided with a limiting part that is connected to the connector, and the connector is provided with a limiting groove for the limiting part to move. The extension range of the limiting groove is not less than the range in which the drive rod moves along the flow direction of the fluid in the first pipeline. A first boss and a second boss are arranged sequentially at intervals on the peripheral side wall of the drive rod along the flow direction of the fluid in the first pipeline, and the limiting part is disposed between the first boss and the second boss. When fluid passes through the drive mechanism and is pushed by the fluid along the flow direction of the first pipeline, the first boss drives the limiting part to move within the limiting groove. When no fluid flows through the drive mechanism and it moves in the opposite direction of the fluid flow due to its own gravity, the second boss drives the limiting part to move within the limiting groove.

2. The pressure boosting valve as described in claim 1, characterized in that, The drive mechanism includes: impeller; The drive rod is connected to the impeller, extends along the flow direction of the fluid in the first pipeline, and one end of the drive rod is connected to the flap mechanism.

3. The pressure boosting valve as described in claim 1 or 2, characterized in that, The driving mechanism includes a driving rod that is connected to the flap mechanism and extends along the flow direction of the fluid in the first pipeline. A support member is provided on the inner wall of the first pipeline and on the side of the drive mechanism near the flip mechanism. The end of the drive rod near the flip mechanism passes through the support member and is connected to the flip mechanism. And / or, a limiting member is provided on the inner wall surface of the first pipeline and on the side of the drive mechanism away from the flip mechanism, and the end of the drive rod away from the flip mechanism passes through the limiting member.

4. The pressure boosting valve as described in claim 1, characterized in that, When the flap mechanism closes the communication port, at least a portion of the cross-sectional dimension of the flap mechanism is not smaller than the cross-sectional dimension of the communication port.

5. The pressure boosting valve as described in claim 4, characterized in that, One end of the blocking member is rotatably connected to the inner wall of the pipeline near the connection port, and the other end of the blocking member is connected to the connecting member. The blocking member opens and closes the connection port in a flipping manner.

6. The pressure boosting valve as described in claim 5, characterized in that, When the blocking member closes the communication port, the extension direction of the blocking member is the same as the extension direction of the driving rod.

7. The pressure boosting valve as described in claim 1, characterized in that, An abutment protrusion is provided at one end of the drive rod near the flipping mechanism, and the flipping mechanism is also provided with an abutment member that is adapted to the abutment protrusion and connected to the blocking member; When the blocking member closes the communication port, the abutting member abuts against the abutting protrusion.

8. A water heater, characterized in that, The water heater includes a pressure boosting valve as described in any one of claims 1-7, and hot water pipes and cold water pipes connected to and disposed at both ends of the pressure boosting valve. The inlet of the first pipeline is connected to the hot water pipeline, and the inlet of the second pipeline is connected to the cold water pipeline.

Images