Water inlet valve with pressure relief function

Abstract

The application relates to the technical field of water valves, and particularly discloses a water inlet valve with a pressure relief function, which comprises a shell and a movable assembly, the shell is provided with a first flow channel, a second flow channel, a first connecting channel and a containing cavity, the first flow channel is communicated with a circulating pipeline, the containing cavity is communicated with the second flow channel, the first connecting channel and an external environment, the movable assembly comprises a mounting shell, a water supplementing part and a pressure relief part, the mounting shell is detachably arranged in the containing cavity, the water supplementing part is movably arranged in the mounting shell, the water supplementing part is connected with the second flow channel and the first connecting channel through movable communication or separation, the pressure relief part is connected with the water supplementing part, the pressure relief part is provided with a second connecting channel, and the second connecting channel is connected with the second flow channel and the external environment. The application has the effect of improving the problem that the existing water inlet valve is inconvenient to disassemble.

Description

Technical Field

[0001] This application relates to the technical field of water valves, and in particular to a water inlet valve with a pressure relief function. Background Technology

[0002] In modern water supply and drainage systems, inlet valves are an important control device widely used in homes, businesses, and industries. Their main function is to control the entry and exit of water.

[0003] However, disassembling the pressure relief components of existing inlet valves is extremely inconvenient. These components are typically integrated or fixed to the main body via an interference fit. Maintenance, replacement, or cleaning of these components often requires specialized tools, and the process is cumbersome and can easily damage the valve body. For example, after prolonged use, scale buildup can impair the pressure relief components' normal operation. Due to the difficulty of disassembly, users often cannot clean them themselves and are forced to replace the entire inlet valve, increasing operating costs and wasting resources. Utility Model Content

[0004] To address the issue of inconvenient disassembly of existing inlet valves, this application provides an inlet valve with a pressure relief function.

[0005] The water inlet valve with pressure relief function provided in this application adopts the following technical solution: A water inlet valve with pressure relief function includes: The shell has a first flow channel, a second flow channel, a first connecting channel and a receiving cavity. The first flow channel is connected to the circulation pipeline, and the receiving cavity is connected to the second flow channel, the first connecting channel and the external environment. The movable component includes a mounting shell, a water supply section, and a pressure relief section. The mounting shell is detachably disposed within the receiving cavity. The water supply section is movably disposed within the mounting shell. The water supply section connects or isolates the second flow channel and the first connecting channel. The pressure relief section is connected to the water supply section and is provided with a second connecting channel, which connects to the second flow channel and the external environment.

[0006] By adopting the above technical solution, the shell serves as the basic structure of the entire device. Its first flow channel connects to the external circulation pipeline, enabling fluid introduction and discharge, and providing the necessary fluid passage for the device's operation. The second flow channel connects to the first connecting channel and the receiving cavity, providing a path for fluid flow within the device, allowing for fluid distribution and transmission between different components. The first connecting channel connects the second flow channel to other components, ensuring smooth fluid flow within the device. The receiving cavity provides installation space for movable components, allowing them to be stably positioned inside the shell. Furthermore, the receiving cavity is connected to the second flow channel, the first connecting channel, and the external environment, facilitating fluid entry and exit and the normal operation of the movable components. The mounting shell of the movable component is detachably installed within the receiving cavity, facilitating the installation, disassembly, and maintenance of the movable component. This improves the operability and ease of maintenance of the device and addresses the problem of the inconvenience of disassembling the existing inlet valve. The water replenishment section is detachably installed within the mounting shell, and through its movable connection or isolation between the second flow channel and the first connecting channel, the flow direction and flow rate of the fluid can be controlled as needed to achieve fluid regulation and meet different working requirements. The pressure relief section is connected to the water replenishment section, and its second connecting channel is connected to the second flow channel and the external environment. When the internal pressure of the device is too high, the pressure relief section can discharge the excess fluid to the external environment through the second connecting channel, playing a pressure relief protection role and preventing the device from being damaged due to excessive pressure, thereby improving the safety and reliability of the device.

[0007] Preferably, the inner diameter of the upper part of the receiving cavity is smaller than the inner diameter of the lower part of the receiving cavity, the upper part of the mounting shell is frustum-shaped, the lower part of the mounting shell is cylindrical, the upper part of the mounting shell is located in the upper part of the receiving cavity, and the outer wall of the lower part of the mounting shell is tightly fitted with the inner wall of the lower part of the receiving cavity.

[0008] By adopting the above technical solution, the upper inner diameter of the receiving cavity is smaller than the lower inner diameter, forming a stepped structure that provides precise positioning and stable support for the mounting shell. The upper part of the mounting shell is frustum-shaped, which ensures the positioning of the mounting shell within the receiving cavity. The lower part of the mounting shell is cylindrical, and its outer wall fits tightly against the inner wall of the lower part of the receiving cavity, ensuring the stability of the mounting shell within the receiving cavity and preventing it from shaking or shifting during operation. This ensures the normal operation of the moving components. The tightly fitted structure also effectively reduces fluid leakage between the mounting shell and the receiving cavity, improves the sealing performance of the device, and ensures smoother and more efficient fluid flow within the device.

[0009] Preferably, the upper part of the mounting shell is provided with a first groove, and a first sealing ring is provided in the first groove; the lower part of the mounting shell is provided with a convex ring and a second groove, the convex ring and the second groove are arranged side by side in the horizontal direction; and the inner wall of the mounting shell is provided with a first thread.

[0010] By adopting the above technical solution, the upper part of the mounting shell is provided with a first groove for installing a first sealing ring. The first sealing ring can enhance the sealing between the mounting shell and the receiving cavity by abutting, preventing fluid leakage from the connection between the mounting shell and the receiving cavity. By setting the first sealing ring in the first groove, fluid leakage can be effectively blocked, ensuring the sealing performance of the device and improving the reliability and safety of the device. The lower part of the mounting shell is provided with a convex ring and a second groove, and the convex ring and the second groove are arranged side by side in the horizontal direction. The convex ring can be used to limit or cooperate with the receiving cavity or other components to ensure the stability and correct installation position of the mounting shell in the receiving cavity. At the same time, the convex ring can also play a certain supporting role, enhancing the structural strength of the mounting shell. The second groove can be connected to other components. The inner wall of the mounting shell is provided with a first thread. The design of the thread structure allows the mounting shell to be threadedly connected to other components in the moving assembly (such as the water supply part), which facilitates the assembly and maintenance of the moving assembly. It can be quickly replaced or adjusted as needed, improving the operability and maintenance convenience of the water inlet valve.

[0011] Preferably, it also includes a connecting piece, one end of which is provided with a U-shaped notch, the connecting piece can be movably inserted into the second groove, and one side of the connecting piece abuts against the convex ring.

[0012] By adopting the above technical solution, a U-shaped notch is provided at one end of the connecting piece, allowing the connecting piece to flexibly insert into the second groove of the mounting shell. Through the cooperation of the U-shaped notch and the second groove, the connecting piece can be firmly fixed on the mounting shell while retaining a certain amount of room for movement, facilitating adjustment or disassembly of the connecting piece when needed. One side of the connecting piece abuts against the convex ring, which can restrict the position of the mounting shell in the receiving cavity and prevent it from axially moving or loosening during operation. The convex ring, as a support point, cooperates with the abutting action of the connecting piece to further enhance the connection stability between the mounting shell and the receiving cavity. By installing and removing the connecting piece, the shell and the mounting shell can be connected or disassembled, further improving the problem of the inconvenience of disassembling the existing water inlet valve.

[0013] Preferably, the water replenishment part includes a metal pipe, and the outer wall of the metal pipe is provided with a third groove, a fourth groove, a fifth groove, a sixth groove and a second thread from top to bottom. A second sealing ring is provided in the third groove, a metal ring with a notch is provided in the fourth groove, a third sealing ring is provided in the fifth groove, a fourth sealing ring is provided in the sixth groove, and the second thread matches the first thread.

[0014] By adopting the above technical solution, the metal pipe in the water supply section is a key component for realizing fluid control and transmission. The outer wall of the metal pipe is provided with multiple grooves and threads from top to bottom, ensuring the sealing, stability and functionality of the water supply section. A second sealing ring is provided in the third groove, which can enhance the sealing between the metal pipe and the mounting shell and prevent fluid from leaking from the connection between the metal pipe and the mounting shell. A metal ring with a notch is provided in the fourth groove, which can be easily installed and removed through the notch, further improving the problem of the inconvenience of disassembling the existing water inlet valve. A third sealing ring is provided in the fifth groove, which further enhances the sealing effect between the metal pipe and the mounting shell. A fourth sealing ring is provided in the sixth groove, which is also to further improve the sealing performance and prevent fluid from leaking from the connection between the metal pipe and the mounting shell. The multi-layer sealing ring design can effectively reduce the risk of leakage and ensure that the sealing performance of the device reaches the optimal state. The outer wall of the metal pipe is also provided with a second thread, which matches the first thread on the inner wall of the mounting shell, so that the metal pipe can be firmly installed in the mounting shell through the threaded connection. The threaded connection not only provides a stable mechanical connection, but also facilitates the installation and disassembly of the metal pipe, and is convenient for maintenance and replacement. Through threaded connection, the metal tube can be accurately positioned inside the mounting housing and form an integral part with the mounting housing.

[0015] Preferably, the pressure relief part includes a third connecting channel, a contact platform, a spring, and an adjusting member. The third connecting channel is disposed inside the metal tube, with one end of the third connecting channel penetrating the top of the metal tube and the other end of the third connecting channel away from the top of the metal tube penetrating the lower side wall of the metal tube. The contact platform is disposed inside the third connecting channel and abuts against the metal tube and the spring. The spring abuts against the metal tube. The adjusting member is threadedly connected to the metal tube and abuts against the spring.

[0016] By adopting the above technical solution, the pressure relief section includes a third connecting channel, a contact platform, and a spring. These components work together to ensure that the device can relieve pressure in a timely manner when the pressure is too high, preventing damage. The third connecting channel is located inside the metal tube, with one end penetrating the top of the metal tube and the other end penetrating the lower side wall of the metal tube. This allows the third connecting channel to connect the fluid inside the metal tube with the external environment, providing a path for fluid discharge. When the internal pressure of the device increases, the fluid can be discharged through the third connecting channel, thereby reducing the internal pressure of the device and playing a pressure relief role. The contact platform is located inside the third connecting channel. It abuts against the metal tube and the spring respectively. The function of the abutment platform is to act as a support point for the spring, ensuring that the spring can be stably installed in the third connecting channel. When the internal pressure of the device increases, the pressure of the fluid will push the abutment platform to compress the spring, thereby opening the third connecting channel and allowing the fluid to be discharged. When the internal pressure of the device decreases to a safe range, the elastic force of the spring will push the abutment platform to reset, close the third connecting channel, and stop the discharge of fluid, thereby protecting the device from damage caused by excessive pressure. At the same time, it ensures that the device can operate stably under normal working pressure. The adjusting component can adjust the elastic force of the spring to adjust the pressure relief pressure.

[0017] Preferably, a sealing gasket is provided on the top of the contact platform.

[0018] By adopting the above technical solution, the sealing gasket can form a reliable seal between the contact platform and the third connecting channel of the metal pipe, preventing fluid leakage from the third connecting channel under non-pressure-relief conditions. When the internal pressure of the device is within the normal range, the sealing gasket is tightly fitted to the inner wall of the third connecting channel, preventing fluid from flowing out through the third connecting channel and ensuring that the fluid can only flow within the predetermined channel. During the pressure relief process, when the internal pressure of the device rises to a certain level, the fluid pressure will push the contact platform to compress the spring, causing the sealing gasket to separate from the inner wall of the third connecting channel, thereby opening the third connecting channel and allowing the fluid to be discharged smoothly. This ensures the timeliness and effectiveness of pressure relief. Furthermore, the sealing effect of the gasket prevents accidental fluid leakage under non-pressure-relief conditions, improving the reliability and safety of the device. The sealing gasket also reduces wear between the contact platform and the inner wall of the third connecting channel, extending the service life of the components. At the same time, the elastic material of the sealing gasket can buffer the impact force of the contact platform during movement to a certain extent, further improving the stability and durability of the device.

[0019] Preferably, it also includes a knob, which is interference-fitted with the end of the metal tube away from the housing.

[0020] By adopting the above technical solution, the knob and the metal tube 221 are interference-fitted, which can ensure that the knob and the metal tube maintain a stable connection during rotation. By rotating the knob, the user can remove the knob, thereby adapting to different working conditions and user needs, improving the versatility and flexibility of the device. The hollow part of the knob can be passed through by a hex screwdriver, so that the pressure relief can be adjusted without disassembling any part of the water inlet valve with pressure relief function, making it easier and more worry-free for the user.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The housing, as the basic structure of the entire device, has a first flow channel that connects to the external circulation pipeline, enabling fluid introduction and discharge and providing the necessary fluid passage for the device's operation. The second flow channel connects to the first connecting channel and the receiving cavity, providing a path for fluid flow within the device, allowing for fluid distribution and transmission between different components. The first connecting channel connects the second flow channel to other components, ensuring smooth fluid flow within the device. The receiving cavity provides installation space for movable components, allowing them to be stably positioned inside the housing. Furthermore, the receiving cavity is connected to the second flow channel, the first connecting channel, and the external environment, facilitating fluid entry and exit and the normal operation of the movable components. The mounting shell is detachably installed inside the receiving cavity, facilitating the installation, disassembly, and maintenance of moving components. This improves the operability and maintenance convenience of the device and addresses the problem of the inconvenience of disassembling the existing inlet valve. The water replenishment section is movably installed inside the mounting shell, and through its movable connection or isolation between the second flow channel and the first connecting channel, the flow direction and flow rate of the fluid can be controlled as needed to achieve fluid regulation and meet different working requirements. The pressure relief section is connected to the water replenishment section, and its second connecting channel is connected to the second flow channel and the external environment. When the internal pressure of the device is too high, the pressure relief section can discharge the excess fluid to the external environment through the second connecting channel, playing a role in pressure relief protection and preventing the device from being damaged due to excessive pressure, thereby improving the safety and reliability of the device. 2. The upper inner diameter of the receiving cavity is smaller than the lower inner diameter, forming a stepped structure that provides precise positioning and stable support for the mounting shell. The upper part of the mounting shell is frustum-shaped, which ensures the positioning of the mounting shell within the receiving cavity. The lower part of the mounting shell is cylindrical, and its outer wall fits tightly against the inner wall of the lower part of the receiving cavity, ensuring the stability of the mounting shell within the receiving cavity and preventing it from shaking or shifting during operation. This ensures the normal operation of the moving components. The tightly fitted structure also effectively reduces fluid leakage between the mounting shell and the receiving cavity, improves the sealing performance of the device, and ensures smoother and more efficient fluid flow within the device. 3. The upper part of the mounting shell is provided with a first groove for installing a first sealing ring. The first sealing ring can enhance the sealing between the mounting shell and the receiving cavity by abutting, preventing fluid leakage from the connection between the mounting shell and the receiving cavity. By setting the first sealing ring in the first groove, fluid leakage can be effectively blocked, ensuring the sealing performance of the device and improving the reliability and safety of the device. The lower part of the mounting shell is provided with a convex ring and a second groove, which are arranged side by side in the horizontal direction. The convex ring can be used to limit or cooperate with the receiving cavity or other components to ensure the stability and correct installation position of the mounting shell in the receiving cavity. At the same time, the convex ring can also play a certain supporting role, enhancing the structural strength of the mounting shell. The second groove can be connected to other components. The inner wall of the mounting shell is provided with a first thread. The thread structure design allows the mounting shell to be threadedly connected to other components in the moving assembly (such as the water supply part), which facilitates the assembly and maintenance of the moving assembly. It can be quickly replaced or adjusted as needed, improving the operability and maintenance convenience of the water inlet valve. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the water inlet valve with pressure relief function in the embodiments of this application; Figure 2 This is a rear view of the housing in an embodiment of this application; Figure 3 This is a cross-sectional structural diagram of the shell in an embodiment of this application; Figure 4 This is a cross-sectional structural diagram of the water inlet valve with pressure relief function in the embodiments of this application; Figure 5 This is a schematic diagram of the structure of the active component in the embodiments of this application; Figure 6 This is a cross-sectional structural diagram of the active component in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of the metal tube in the embodiments of this application; Figure 8 This is a partial structural schematic diagram of the pressure relief section in the embodiments of this application; Figure 9 This is a schematic diagram of the knob in the embodiment of this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Housing; 11. First flow channel; 12. Second flow channel; 13. First connecting channel; 14. Receiving cavity; 2. Movable component; 21. Mounting shell; 211. First groove; 212. First sealing ring; 213. Raised ring; 214. Second groove; 215. First thread; 22. Water supply part; 221. Metal pipe; 222. Third groove; 223. Fourth groove; 224. Fifth groove; 225. Sixth groove; 227. Second thread; 228. Metal ring; 229. Second sealing ring; 2291. Third sealing ring; 226. Fourth sealing ring; 23. Pressure relief part; 231. Third connecting channel; 232. Abutment platform; 233. Spring; 234. Sealing gasket; 235. Adjusting component; 24. Second connecting channel; 3. Connecting piece; 4. Knob. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0025] This application discloses a water inlet valve with a pressure relief function. (Refer to...) Figure 1 and Figure 2 The inlet valve with pressure relief function includes a housing 1, a movable component 2, a connecting piece 3, and a knob 4.

[0026] like Figure 3 and Figure 4 As shown, the housing 1 has a first flow channel 11, a second flow channel 12, a first connecting channel 13 and a receiving cavity 14. The first flow channel 11 is connected to the circulation pipeline, and the receiving cavity 14 is connected to the second flow channel 12, the first connecting channel 13 and the external environment.

[0027] For example, in this embodiment, the housing 1 is a metal housing; the housing 1 serves as the basic structure of the entire device, and its first flow channel 11 is used to connect with the external circulation pipeline to realize the introduction and discharge of fluid, providing the necessary fluid channel for the operation of the device. The second flow channel 12 is connected to the first connecting channel 13 and the receiving cavity 14, providing a path for the flow of fluid inside the device, so that the fluid can be distributed and transmitted between different components. The first connecting channel 13 serves to connect the second flow channel 12 and other components, ensuring that the fluid can flow smoothly inside the device. The receiving cavity 14 provides installation space for the movable component 2, so that the movable component 2 can be stably set inside the housing 1. The receiving cavity 14 is connected to the second flow channel 12, the first connecting channel 13 and the external environment, which facilitates the entry and exit of fluid and the normal operation of the movable component 2. The mounting shell 21 of the movable component 2 is detachably set in the receiving cavity 14, which facilitates the installation, disassembly and maintenance of the movable component 2, improves the operability and maintenance convenience of the device, and improves the problem of the inconvenience of disassembling the existing water inlet valve.

[0028] like Figure 5 and Figure 6 As shown, the active component 2 includes a mounting shell 21, a water supply section 22, and a pressure relief section 23. The mounting shell 21 is detachably disposed within the receiving cavity 14. The water supply section 22 is movably disposed within the mounting shell 21. The water supply section 22 connects or disconnects the second flow channel 12 and the first connecting channel 13 through a movable connection. The pressure relief section 23 is connected to the water supply section 22 and is provided with a second connecting channel 24, which connects to the second flow channel 12 and the external environment.

[0029] In this embodiment, the mounting shell 21 is specifically a metal shell. The upper part of the mounting shell 21 has a first groove 211, within which a first sealing ring 212 is disposed. The lower part of the mounting shell 21 has a protruding ring 213 and a second groove 214, arranged side-by-side in the horizontal direction. The inner wall of the mounting shell 21 has a first thread 215. The first groove 211 on the upper part of the mounting shell 21 is used to install the first sealing ring 212. The first sealing ring 212 enhances the sealing between the mounting shell 21 and the receiving cavity 14 by abutting, preventing fluid leakage from the connection between the mounting shell 21 and the receiving cavity 14. By providing the first sealing ring 212 within the first groove 211, fluid leakage can be effectively blocked, ensuring the sealing performance of the device and improving its reliability. For safety and security, the lower part of the mounting shell 21 is provided with a convex ring 213 and a second groove 214, which are arranged side by side in the horizontal direction. The convex ring 213 can be used to limit or cooperate with the receiving cavity 14 or other components to ensure the stability and correct installation position of the mounting shell 21 in the receiving cavity 14. At the same time, the convex ring 213 can also play a certain supporting role and enhance the structural strength of the mounting shell 21. The second groove 214 can be connected to other components. The inner wall of the mounting shell 21 is provided with a first thread 215. The thread structure design allows the mounting shell 21 to be threadedly connected to other components in the movable component 2 (such as the water supply part 22), which facilitates the assembly and maintenance of the movable component 2. It can be quickly replaced or adjusted as needed, improving the operability and maintenance convenience of the water inlet valve.

[0030] It should be noted that, in this embodiment, the inner diameter of the upper part of the receiving cavity 14 is smaller than the inner diameter of the lower part of the receiving cavity 14, forming a stepped structure, which provides precise positioning and stable support for the mounting shell 21. The upper part of the mounting shell 21 is frustum-shaped, which can ensure the positioning of the mounting shell 21 in the receiving cavity 14. The lower part of the mounting shell 21 is cylindrical. The upper part of the mounting shell 21 is located at the upper part of the receiving cavity 14. The outer wall of the lower part of the mounting shell 21 is tightly fitted with the inner wall of the lower part of the receiving cavity 14, which can ensure the stability of the mounting shell 21 in the receiving cavity 14 and prevent it from shaking or shifting during operation, thereby ensuring the normal operation of the moving component 2. The tightly fitted structure can also effectively reduce fluid leakage between the mounting shell 21 and the receiving cavity 14, improve the sealing performance of the device, and ensure that the fluid flows more smoothly and efficiently inside the device.

[0031] In this embodiment, a connecting piece 3 is also provided. The connecting piece 3 may be, but is not limited to, a metal sheet or a polyvinyl chloride sheet. One end of the connecting piece 3 is provided with a U-shaped notch. The connecting piece 3 can be movably inserted into the second groove 214. One side of the connecting piece 3 abuts against the protruding ring 213. The U-shaped notch at one end of the connecting piece 3 allows the connecting piece 3 to flexibly and movably insert into the second groove 214 of the mounting shell 21. Through the cooperation between the U-shaped notch and the second groove 214, the connecting piece 3 can be firmly fixed on the mounting shell 21, while retaining a certain degree of stability. The connection provides a certain amount of space for adjustment, allowing the connecting piece 3 to be adjusted or disassembled as needed. One side of the connecting piece 3 abuts against the convex ring 213, which restricts the position of the mounting shell 21 within the receiving cavity 14, preventing axial movement or loosening during operation. The convex ring 213, as a support point, works in conjunction with the abutting action of the connecting piece 3 to further enhance the connection stability between the mounting shell 21 and the receiving cavity 14. By installing and disassembling the connecting piece 3, the shell 1 and the mounting shell 21 can be connected or disassembled, further improving the problem of the existing inconvenient disassembly of the inlet valve.

[0032] like Figure 6 and Figure 7 As shown, the water replenishment part 22 includes a metal pipe 221. The outer wall of the metal pipe 221 is provided with a third groove 222, a fourth groove 223, a fifth groove 224, a sixth groove 225 and a second thread 227 from top to bottom. A second sealing ring 229 is provided in the third groove 222, a metal ring 228 with a notch is provided in the fourth groove 223, a third sealing ring 2291 is provided in the fifth groove 224, a fourth sealing ring 226 is provided in the sixth groove 225, and the second thread 227 matches the first thread 215.

[0033] In this embodiment, the metal pipe 221 in the water supply section 22 is a key component for fluid control and transmission. The outer wall of the metal pipe 221 has multiple grooves and threads arranged sequentially from top to bottom, ensuring the sealing, stability, and functionality of the water supply section 22. A second sealing ring 229 is provided in the third groove 222, enhancing the sealing between the metal pipe 221 and the mounting shell 21 and preventing fluid leakage from the connection point. A notched metal ring 228 is provided in the fourth groove 223, allowing for convenient installation and removal of the metal ring 228, further improving the problem of inconvenient disassembly of existing inlet valves. A third sealing ring 229 is provided in the fifth groove 224. 1. To further enhance the sealing effect between the metal tube 221 and the mounting housing 21, a fourth sealing ring 226 is provided in the sixth groove 225, also to further improve the sealing performance and prevent fluid leakage from the connection between the metal tube 221 and the mounting housing 21. The multi-layer sealing ring design can effectively reduce the risk of leakage and ensure that the sealing performance of the device reaches the optimal state. The outer wall of the metal tube 221 is also provided with a second thread 227, which matches the first thread 215 on the inner wall of the mounting housing 21, so that the metal tube 221 can be firmly installed in the mounting housing 21 through the threaded connection. The threaded connection not only provides a stable mechanical connection, but also facilitates the installation and disassembly of the metal tube 221, making maintenance and replacement convenient. Through the threaded connection, the metal tube 221 can be accurately positioned in the mounting housing 21 and form an integral part with the mounting housing 21.

[0034] Specifically, the water replenishment part 22 is movably disposed within the mounting shell 21. By movably connecting or disconnecting the second flow channel 12 and the first connecting channel 13, the flow direction and flow rate of the fluid can be controlled as needed to achieve fluid regulation and thus meet different working requirements. At the same time, the metal pipe 221 can be separated from the metal shell after rotation, making it easy to disassemble, thereby further improving the problem of the existing inlet valve being inconvenient to disassemble.

[0035] like Figure 6 and Figure 8 As shown, the pressure relief part 23 includes a third connecting channel 231, an abutment platform 232, and a spring 233. The third connecting channel 231 is disposed inside the metal tube 221. One end of the third connecting channel 231 penetrates the top of the metal tube 221, and the other end of the third connecting channel 231 away from the top of the metal tube 221 penetrates the lower side wall of the metal tube 221. The abutment platform 232 is disposed inside the third connecting channel 231 and abuts against the metal tube 221 and the spring 233 respectively. The spring 233 abuts against the metal tube 221.

[0036] In this embodiment, the pressure relief section 23 includes a third connecting channel 231, a contact platform 232, and a spring 233. These components work together to ensure that the device can release pressure in time when the pressure is too high, preventing damage. The third connecting channel 231 is disposed inside the metal tube 221, with one end penetrating the top of the metal tube 221 and the other end penetrating the lower side wall of the metal tube 221. This allows the third connecting channel 231 to connect the fluid inside the metal tube 221 with the external environment, providing a path for the fluid to drain. When the internal pressure of the device increases, the fluid can be discharged through the third connecting channel 231, thereby reducing the internal pressure of the device and playing a pressure relief role. The contact platform 232 is disposed within... Inside the third connecting channel 231, it abuts against the metal tube 221 and the spring 233 respectively. The function of the abutment platform 232 is to serve as a support point for the spring 233, ensuring that the spring 233 can be stably installed in the third connecting channel 231. When the internal pressure of the device increases, the pressure of the fluid will push the abutment platform 232 to compress the spring 233, thereby opening the third connecting channel 231 and allowing the fluid to be discharged. When the internal pressure of the device decreases to a safe range, the elastic force of the spring 233 will push the abutment platform 232 to reset, close the third connecting channel 231, stop the discharge of fluid, thereby protecting the device from damage caused by excessive pressure, and ensuring that the device can operate stably under normal working pressure.

[0037] It should be noted that a sealing gasket 234 is provided on the top of the abutment platform 232. The sealing gasket 234 can form a reliable seal between the abutment platform 232 and the third connection channel 231 of the metal pipe 221, preventing fluid from leaking from the third connection channel 231 in a non-depressurized state. When the internal pressure of the device is within the normal range, the sealing gasket 234 is tightly fitted against the inner wall of the third connecting channel 231, preventing fluid from flowing out through the third connecting channel 231 and ensuring that the fluid can only flow within the predetermined channel. During the pressure relief process, when the internal pressure of the device rises to a certain level, the fluid pressure will push the abutment platform 232 to compress the spring 233, causing the sealing gasket 234 to separate from the inner wall of the third connecting channel 231, thereby opening the third connecting channel 231 and allowing the fluid to be discharged smoothly. This ensures the timeliness and effectiveness of pressure relief. Furthermore, the sealing gasket 234 prevents accidental leakage of fluid in non-pressure relief states, improving the reliability and safety of the device. The sealing gasket 234 also reduces wear between the abutment platform 232 and the inner wall of the third connecting channel 231, extending the service life of the components. At the same time, the elastic material of the sealing gasket 234 can buffer the impact force of the abutment platform 232 during movement to a certain extent, further improving the stability and durability of the device.

[0038] Specifically, the pressure relief unit 23 is connected to the water replenishment unit 22, and its second connection channel 24 is connected to the second flow channel 12 and the external environment. When the internal pressure of the device is too high, the pressure relief unit 23 can discharge the excess fluid to the external environment through the second connection channel 24, which plays a role in pressure relief protection, prevents the device from being damaged due to excessive pressure, and improves the safety and reliability of the device.

[0039] Furthermore, the adjusting member 235 is threadedly connected to the metal tube 221. The side of the adjusting member 235 away from the spring 233 is provided with a hexagonal screw hole. The user can rotate the adjusting member 235 with a hexagonal screwdriver, thereby causing the adjusting member 235 to rise or fall inside the metal tube 221, thereby causing the adjusting member 235 to compress or release the spring 233, ultimately changing the force of the spring 233 to change the pressure relief. For example, the adjusting member is a metal column with threads on its surface.

[0040] like Figure 6 and Figure 9 As shown, the knob 4 is hollow and has an interference fit with the end of the metal tube 221 away from the housing 1. The interference fit between the knob 4 and the metal tube 221 ensures that the knob 4 maintains a stable connection with the metal tube 221 during rotation. By rotating the knob 4, the user can remove the knob 4 to adapt to different working conditions and user needs, thus improving the versatility and flexibility of the device. The hollow part of the knob 4 allows a hex screwdriver to pass through, so that the pressure relief can be adjusted without disassembling any part of the water inlet valve with pressure relief function, making it easier and more convenient for the user.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water inlet valve with pressure relief function, characterized in that, include: The shell (1) has a first flow channel (11), a second flow channel (12), a first connecting channel (13) and a receiving cavity (14). The first flow channel (11) is connected to the circulation pipeline, and the receiving cavity (14) is connected to the second flow channel (12), the first connecting channel (13) and the external environment. The active component (2) includes a mounting shell (21), a water supply part (22), and a pressure relief part (23). The mounting shell (21) is detachably disposed in the receiving cavity (14). The water supply part (22) is movably disposed in the mounting shell (21). The water supply part (22) is connected to or separated from the second flow channel (12) and the first connecting channel (13) through a movable connection. The pressure relief part (23) is connected to the water supply part (22). The pressure relief part (23) is provided with a second connecting channel (24). The second connecting channel (24) is connected to the second flow channel (12) and the external environment.

2. The inlet valve with pressure relief function according to claim 1, characterized in that: The upper inner diameter of the receiving cavity (14) is smaller than the lower inner diameter of the receiving cavity (14). The upper part of the mounting shell (21) is frustum-shaped, and the lower part of the mounting shell (21) is cylindrical. The upper part of the mounting shell (21) is located in the upper part of the receiving cavity (14), and the outer wall of the lower part of the mounting shell (21) is tightly fitted with the inner wall of the lower part of the receiving cavity (14).

3. The inlet valve with pressure relief function according to claim 1, characterized in that: The upper part of the mounting shell (21) is provided with a first groove (211), and a first sealing ring (212) is provided in the first groove (211). The lower part of the mounting shell (21) is provided with a convex ring (213) and a second groove (214). The convex ring (213) and the second groove (214) are arranged side by side in the horizontal direction. The inner wall of the mounting shell (21) is provided with a first thread (215).

4. The inlet valve with pressure relief function according to claim 3, characterized in that: It also includes a connecting piece (3), one end of which is provided with a U-shaped notch. The connecting piece (3) can be movably inserted into the second groove (214), and one side of the connecting piece (3) abuts against the convex ring (213).

5. The inlet valve with pressure relief function according to claim 3, characterized in that: The water replenishment part (22) includes a metal pipe (221). The outer wall of the metal pipe (221) is provided with a third groove (222), a fourth groove (223), a fifth groove (224), a sixth groove (225), and a second thread (227) from top to bottom. A second sealing ring (229) is provided in the third groove (222), a metal ring (228) with a notch is provided in the fourth groove (223), a third sealing ring (2291) is provided in the fifth groove (224), a fourth sealing ring (226) is provided in the sixth groove (225), and the second thread (227) matches the first thread (215).

6. The inlet valve with pressure relief function according to claim 5, characterized in that: The pressure relief section (23) includes a third connecting channel (231), a contact platform (232), a spring (233), and an adjusting member (235). The third connecting channel (231) is disposed inside the metal tube (221). One end of the third connecting channel (231) penetrates the top of the metal tube (221), and the other end of the third connecting channel (231) away from the top of the metal tube (221) penetrates the lower side wall of the metal tube (221). The contact platform (232) is disposed inside the third connecting channel (231). Inside the connecting channel (231), the abutment platform (232) abuts against the metal tube (221) and the spring (233) respectively. The abutment platform (232) is set opposite to the third connecting channel (231). The spring (233) abuts against the metal tube (221). The adjusting member (235) is threadedly connected to the metal tube (221). The adjusting member (235) is used to change the force of the spring (233) when changing its position relative to the metal tube (221) in order to change the pressure relief.

7. The inlet valve with pressure relief function according to claim 6, characterized in that: A sealing gasket (234) is provided on the top of the abutment platform (232).

8. The inlet valve with pressure relief function according to claim 6, characterized in that: It also includes a knob (4), which is hollow and is interference-fitted with the end of the metal tube (221) away from the housing (1).

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