Core-changing water cut-off assembly and water purifying device

Abstract

The utility model relates to a core-changing water cut-off assembly and a water purifying device, and belongs to the field of water purifying equipment. The core changing and water cutting-off assembly comprises a water path assembly, the water path assembly is provided with a water passing channel, and the water path assembly is provided with a water inlet and a water outlet which are communicated with the water passing channel; the water cut-off assembly can move relative to the water path assembly; one end of the reset piece abuts against the water cut-off assembly, and the other end of the reset piece abuts against the cavity wall of the water passing channel. And through the arranged water cut-off assembly, the on-off of water flow can be accurately controlled during core replacement or equipment maintenance. By means of automatic control of the water cut-off assembly, a user does not need to manually close a water inlet valve or take additional measures to cut off inflow of a water source, water flow can be automatically cut off, complex operation is not needed, and therefore the filter element replacement process is simplified.

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment, and in particular to a filter replacement and water shut-off component and a water purification device. Background Technology

[0002] During the use of a water purification system, filter cartridges need to be replaced regularly to ensure the normal operation of the equipment and the cleanliness of the water. However, leaks often occur during cartridge replacement. This is usually because the water system is not completely shut off or is not properly sealed when replacing the filter cartridge, causing water to leak from the unreplaced filter cartridge and water connection points. This leakage not only affects the smooth operation of cartridge replacement but can also cause dampness in the surrounding environment and even damage electrical components, increasing maintenance costs. Utility Model Content

[0003] Therefore, it is necessary to provide a filter replacement water shut-off component and water purification device to address the problem of water leakage during filter replacement.

[0004] A filter cartridge replacement and water shut-off assembly includes: a water circuit assembly having a water passage and an inlet and an outlet respectively communicating with the water passage; a water shut-off assembly, at least a portion of which is located within the water passage and is movable relative to the water circuit assembly; and a reset member, one end of which abuts against the water shut-off assembly and the other end of which abuts against the cavity wall of the water passage. When the water shut-off assembly moves within the water passage, it has at least a first position and a second position. When the water shut-off assembly is in the first position, the inlet, the water passage, and the outlet are sequentially connected. When the water shut-off assembly is in the second position, it blocks the water passage located between the inlet and the outlet, thus disconnecting the inlet and outlet.

[0005] This application discloses a filter cartridge replacement water shut-off assembly. This assembly allows for precise control of water flow during filter cartridge replacement or equipment maintenance. When in its second position, the assembly blocks the water passage, cutting off the water flow between the inlet and outlet. This design effectively prevents water leakage during replacement or maintenance, avoids interference with operators, and ensures a clean and tidy maintenance process. The automated control of the water shut-off assembly eliminates the need for manual closure of the inlet valve or additional measures to cut off the water supply; the water flow is automatically shut off, simplifying the filter cartridge replacement process. The sealing effect of the water shut-off assembly ensures that the water quality is not subject to secondary contamination from the filter cartridge during filtration. The automatic shut-off prevents backflow of water into the filter cartridge during replacement, avoiding mutual penetration between water and contaminants within the cartridge. This helps maintain the cleanliness of the filter cartridge and extends its service life. When uncontaminated, the filter cartridge maintains its optimal filtration performance. The reset mechanism is designed to ensure that the water shut-off assembly automatically returns to its initial position after the water supply is cut off. This reduces the risks associated with errors or omissions during manual operation and ensures efficient system operation. This automatic reset function not only improves operational reliability but also ensures the long-term stable operation of the water shut-off assembly.

[0006] In one embodiment, the water shut-off assembly includes a valve core and a sealing ring. The valve core abuts against the reset member and is movable relative to the water circuit assembly while abutting against the reset member. The valve core has at least a third position and a fourth position. When the valve core is in the third position, it opens the water passage between the inlet and the outlet. When the valve core is in the fourth position, the valve core and the sealing ring block the water passage between the inlet and the outlet. The valve core moves between the third and fourth positions. In the third position, the valve core opens the water passage, allowing water to flow freely between the inlet and outlet. In the fourth position, the valve core, in conjunction with the sealing ring, completely blocks the water passage, thereby cutting off the water flow between the inlet and the outlet and ensuring a complete disconnection of water flow. The automatic water shut-off design of the equipment reduces the operational complexity for users during equipment maintenance. Even when replacing the filter cartridge after a long period of inactivity, users do not need to worry about malfunctions caused by water leakage or improper operation.

[0007] In one embodiment, the sealing ring is disposed on the water circuit assembly, and there is a gap between the valve core and the channel wall of the water passage. When the valve core is in the third position, the valve core and the sealing ring are spaced apart; when the valve core is in the fourth position, the valve core abuts against the sealing ring, and the sealing ring seals the gap between the valve core and the channel wall of the water passage. The precise contact between the sealing ring and the valve core ensures that the water flow is completely isolated when the valve core is closed, preventing leakage. The function of the sealing ring is to seal the gap between the valve core and the water circuit assembly, preventing unfiltered or contaminated water from flowing out of the system and ensuring the stability of system operation.

[0008] In one embodiment, a step is formed on the wall of the water passage, and the sealing ring is engaged at the step. The step allows for precise positioning of the sealing ring, ensuring its sealing effect.

[0009] In one embodiment, the sealing ring is disposed on the valve core. When the valve core is in the third position, there is a gap between the sealing ring and the channel wall of the water passage. When the valve core is in the fourth position, the sealing ring abuts against the channel wall of the water passage.

[0010] In one embodiment, a protrusion is formed on the channel wall of the water passage. When the valve core is in the fourth position, the sealing ring abuts against the protrusion; or, the cross-section of the water passage gradually increases from the inlet to the outlet in the flow direction. The protrusion design on the water passage ensures that the sealing ring can firmly contact the protruding portion, enhancing the sealing effect. This structural design not only improves the durability of the sealing ring but also effectively prevents wear or aging of the sealing ring, extending the service life of the equipment. When the valve core is in the fourth position, the sealing ring abuts against the protrusion, making the seal tighter, reducing the risk of water leakage, and ensuring the system can operate stably for a long time. Alternatively, by gradually increasing the cross-section of the water passage from the inlet to the outlet in the flow direction, the sealing ring can abut against the inner wall of the water passage to achieve a seal.

[0011] In one embodiment, the valve core includes a sealing platform and a push block. The push block is disposed on the sealing platform and located on the side of the sealing platform facing the water inlet. The sealing platform is movable relative to the water circuit assembly and abuts against the reset member. The sealing ring is disposed on the water circuit assembly. The sealing platform has at least a fifth position and a sixth position. When the sealing platform is in the fifth position, the sealing platform and the sealing ring are spaced apart. When the sealing platform is in the sixth position, the sealing platform abuts against the sealing ring. The sealing ring seals the gap between the sealing platform and the channel wall of the water passage. The presence of at least two positions of the sealing platform, namely the fifth and sixth positions, allows for more flexible control of the water flow. When the sealing platform is in the fifth position, the water passage remains unobstructed, and water can flow freely. When the sealing platform is in the sixth position, the water flow is completely cut off. This switching mechanism ensures that the water flow can be stopped when needed, preventing unnecessary water waste, especially during filter replacement or equipment maintenance, effectively preventing the contamination of purified water.

[0012] In one embodiment, the valve core further includes a guide rod disposed on the sealing platform and located on the side of the sealing platform away from the push block. The reset member has a guide channel, and the guide rod extends into the guide channel and is movable relative to the guide channel. The relative movement between the guide rod and the guide channel ensures that the valve core moves smoothly during switching. The guide channel provides a fixed path for the guide rod, avoiding the problem of the valve core getting stuck or moving unevenly due to lack of guiding support during movement, thereby improving the smoothness and response speed of the entire water circuit system.

[0013] In one embodiment, the valve core further includes multiple first limiting blocks, which are disposed on the sealing platform and arranged circumferentially along the sealing platform. The reset member has a mounting cavity with a water passage notch communicating with the mounting cavity. The cavity wall of the mounting cavity has multiple first guide grooves arranged along the length of the reset member. The multiple first limiting blocks can slide within the space defined by the multiple first guide grooves. The cooperation of the first limiting blocks and the first guide grooves ensures that the movement of the valve core is not only smooth but also clearly restricted, so that the valve core is always on the designed path, avoiding unnecessary lateral movement. The multiple limiting blocks are distributed circumferentially, ensuring that the valve core can accurately switch between multiple positions and maintain the balance of movement, avoiding malfunctions caused by excessive friction or unstable movement.

[0014] In one embodiment, when the sealing platform is located at the fifth position, the distance from the sealing ring is L, where L is greater than mm and less than mm. This spacing between the sealing platform and the sealing ring provides greater clearance, ensuring the flow rate of water and avoiding excessive obstruction of the flowing water.

[0015] In one embodiment, the water circuit assembly includes a water circuit board body and a sealing component. The water circuit board body has a through-flow water channel, one end of which has an installation port communicating with the water channel, and the other end has a water inlet. The water outlet is located on the cavity wall of the water channel. The sealing component is disposed on the water circuit board body and located at the installation port. The end of the reset component away from the water cut-off component abuts against the sealing component. The design of the sealing component and the installation port ensures that the connection between the water circuit board body and other accessories forms a tight seal, preventing water leakage. The sealing component effectively prevents external factors from affecting the water flow channel, improving the overall sealing and stability of the equipment, thereby enhancing the reliability of the water circuit system. The end of the reset component away from the water cut-off component abuts against the sealing component, ensuring accurate operation of the sealing component when the water flow stops. The reset component provides a stable return mechanism, helping the sealing component maintain optimal operating condition during use. This design not only extends the service life of the equipment but also reduces wear and tear and malfunctions caused by frequent adjustments.

[0016] In one embodiment, the sealing assembly includes a plug, a sealing ring, and a support base. The plug is disposed on the water circuit board body and located at the mounting port. The sealing ring is sandwiched between the plug and the cavity wall of the flow channel. The support base is located inside the flow channel and abuts against the plug and the reset member, respectively.

[0017] In one embodiment, the sealing assembly includes a plug, a sealing ring, and a support post. The plug is disposed on the water circuit board body and located at the mounting port. The sealing ring is sandwiched between the plug and the cavity wall of the flow channel. The support post is located inside the flow channel and abuts against the plug and the reset member, respectively.

[0018] In one embodiment, the reset component includes a reset mounting block and an elastic element. The reset mounting block is disposed on the water circuit assembly and located within the water passage. One end of the elastic element abuts against the mounting block, and the other end abuts against the water cut-off assembly. Through the cooperation between the elastic element, the reset mounting block, and the water cut-off assembly, the reset component plays a crucial role in water flow management. The elasticity of the elastic element allows the water circuit assembly to withstand certain external forces, and it can automatically restore the system to its normal operating state when the water cut-off assembly is not in operation, ensuring the stability of the water circuit system. The design of the elastic element provides a self-recovery function for the entire system, enhancing its adaptability.

[0019] In one embodiment, the mounting block has a mounting cavity and a guide channel. The mounting cavity communicates with the guide channel. A water-passing notch communicating with the mounting cavity is formed on the side wall of the mounting block. A first guide groove is formed on the inner wall of the mounting cavity. At least a portion of the water-cutting component is located within the mounting cavity. A portion of the water-cutting component is located within the first guide groove and can move within it. A portion of the water-cutting component extends into the guide channel and can move within it. The guide channel design allows the water-cutting component to move precisely along a set track. The guide channel not only provides movement space for the water-cutting component but also ensures that it will not deviate or get stuck during movement, thus guaranteeing the accuracy and stability of water flow control. The space within the mounting cavity provides support for the water-cutting component, allowing it to maintain a fixed position during operation and preventing misoperation due to component loosening or deviation. The water-passing notch on the side wall of the mounting block communicates with the mounting cavity, forming a water passage. This design provides a flow path for water when needed and blocks the passage when the water-cutting component is closed, ensuring precise water flow management. The water inlet design ensures smooth water flow without blockage. The water cut-off component moves smoothly within the guide channel, ensuring a rapid response when water flow needs to be switched, and preventing system failure due to slow switching.

[0020] In one embodiment, the mounting block includes a mounting shell, a guide post, and a second limiting block. The mounting shell has a mounting cavity, and a water passage notch communicating with the mounting cavity is provided on the side wall of the mounting shell. The inner wall of the mounting shell has a first guide groove, which is arranged along the length direction of the mounting shell. A portion of the water component is located within the first guide groove and can move within the first guide groove. The guide post is disposed on the mounting shell, with a portion located within the mounting cavity and a portion located outside the mounting cavity. The guide post has a guide channel communicating with the mounting cavity. A portion of the water cut-off component extends into the guide channel and can move within the guide channel. The second limiting block is disposed on the outer wall of the mounting shell, and there are multiple second limiting blocks arranged along the circumference of the mounting shell. The inner wall of the water passage has multiple second guide grooves, which are arranged along the extension direction of the water passage. The multiple guide grooves are adapted to the multiple second limiting blocks, and the second limiting blocks can move within the guide grooves. The guide column's guide channel allows the water-cutting component to move stably within the mounting cavity, providing a precise movement path and ensuring that the component does not tilt or jam during movement, thus improving its stability and positioning accuracy. The guide column provides support and ensures the component moves along the set path through the guide channel, thereby reducing the risk of system malfunction. The second limit block cooperates with the second guide groove, allowing the second limit block to move within the guide groove and complete its positioning.

[0021] The second aspect of this application discloses a water purification device, which includes the aforementioned filter replacement and water shut-off assembly.

[0022] The second aspect of this application discloses a water purification device. By using a filter replacement water cut-off component, the liquid flow channel can be blocked in time when the filter element is replaced, thus preventing liquid backflow and avoiding contamination of the internal liquid by external substances. Attached Figure Description

[0023] Figure 1 This is the first 3D view of the water shut-off component for core replacement;

[0024] Figure 2 This is a second perspective view of the water shut-off component with a core replacement mechanism;

[0025] Figure 3 This is a cross-sectional view of the water shut-off component during the core replacement process, showing its open state.

[0026] Figure 4 for Figure 3 Enlarged view of region A;

[0027] Figure 5 for Figure 3Enlarged view of region B;

[0028] Figure 6 This is a cross-sectional view of the blocked state of the water shut-off component during core replacement.

[0029] Figure 7 for Figure 6 A magnified view of a portion of region C;

[0030] Figure 8 for Figure 6 A magnified view of a portion of region D;

[0031] Figure 9 This is a third-dimensional view of the water shut-off assembly for core replacement;

[0032] Figure 10 An exploded view of the water shut-off component for core replacement;

[0033] Figure 11 This is a cross-sectional view of the water system components;

[0034] Figure 12 An exploded view of the cross-section of the water system components;

[0035] Figure 13 Assembly drawing of the water cut-off component and reset component;

[0036] Figure 14 This is a cross-sectional view of the water shut-off assembly and the reset component;

[0037] Figure 15 Exploded view of the water shut-off assembly and reset component;

[0038] Figure 16 This is a cross-sectional view of the exploded view of the water shut-off assembly and the reset component.

[0039] The correspondence between the reference numerals and the component names is as follows:

[0040] 1 Water circuit component, 11 Water circuit board body, 12 Sealing component, 121 Plug, 122 Sealing ring, 123 Support base, 124 Support column, 101 Water passage, 102 Inlet, 103 Outlet, 104 Step, 105 Installation port, 106 Second guide groove.

[0041] 2. Water shut-off assembly, 21. Valve core, 211. Sealing platform, 212. Push block, 213. Guide rod, 214. First limit block, 22. Sealing ring;

[0042] 3 Reset component, 31 Reset mounting block, 311 Mounting shell, 312 Guide post, 313 Second limit block, 301 Mounting cavity, 302 Water passage notch, 303 Guide channel, 304 First guide groove. Detailed Implementation

[0043] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0044] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0045] The following description, with reference to the accompanying drawings, describes some embodiments of the water-stopping and filter-changing components and water purification devices of this utility model.

[0046] Example 1

[0047] like Figures 1 to 16 As shown, this embodiment discloses a water shut-off component for core replacement. The water shut-off component includes: a water circuit component 1, which has a water passage 101 and an inlet 102 and an outlet 103 respectively connected to the water passage 101; a water shut-off component 2, at least part of which is located within the water passage 101 and is movable relative to the water circuit component 1; and a reset component 3, one end of which abuts against the water shut-off component 2 and the other end of which abuts against the cavity wall of the water passage 101. When the water shut-off component 2 moves within the water passage 101, it has at least a first position and a second position. When the water shut-off component 2 is in the first position, the inlet 102, the water passage 101, and the outlet 103 are connected in sequence. When the water shut-off component 2 is in the second position, it blocks the water passage 101 located between the inlet 102 and the outlet 103, and the inlet 102 and the outlet 103 are disconnected.

[0048] This application discloses a filter cartridge replacement water shut-off assembly. The water shut-off assembly 2 allows for precise control of water flow during filter cartridge replacement or equipment maintenance. When the water shut-off assembly 2 is in the second position, it blocks the water passage 101, thereby cutting off the water flow between the inlet 102 and the outlet 103. This design effectively prevents water leakage during filter cartridge replacement or maintenance, avoids interference with operators, and ensures a clean and tidy maintenance process. Through the automated control of the water shut-off assembly, users do not need to manually close the inlet valve or take additional measures to cut off the water supply; the water flow is automatically cut off, simplifying the filter cartridge replacement process. The sealing effect of the water shut-off assembly 2 ensures that the water quality is not subject to secondary contamination from the filter cartridge during filtration. The automatic shut-off of the water shut-off assembly prevents backflow into the filter cartridge during replacement, avoiding mutual penetration between water and contaminants within the filter cartridge. This helps keep the filter cartridge clean and extends its service life. When uncontaminated, the filter cartridge can maintain its optimal filtration performance. The design of the reset component 3 ensures that the water shut-off assembly 2 automatically returns to its initial position after the water is cut off. This reduces the risk of errors or omissions during manual operation and ensures the efficient operation of the system. This automatic reset function not only improves the reliability of operation but also ensures the long-term stable operation of the water shut-off assembly.

[0049] like Figure 4 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the water shut-off component 2 includes a valve core 21 and a sealing ring 22, the valve core 21 abuts against the reset member 3, the valve core 21 is movable relative to the water circuit component 1 and abuts against the reset member 3, the valve core 21 has at least a third position and a fourth position, when the valve core 21 is in the third position, the valve core 21 opens the water passage 101 between the water inlet 102 and the water outlet 103, when the valve core 21 is in the fourth position, the valve core 21 and the sealing ring 22 block the water passage 101 between the water inlet 102 and the water outlet 103. The valve core 21 moves between the third and fourth positions. In the third position, valve core 21 opens the water passage 101, allowing water to flow freely between inlet 102 and outlet 103. In the fourth position, valve core 21, in conjunction with sealing ring 22, completely blocks the water passage 101, thus cutting off the water flow between inlet 102 and outlet 103 and ensuring complete water shut-off. This automatic water shut-off design reduces the complexity of maintenance for users. Even when replacing the filter cartridge after a long period of inactivity, users do not need to worry about malfunctions caused by water leaks or improper operation.

[0050] like Figure 4 and Figure 7As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the sealing ring 22 is disposed on the water circuit assembly 1; there is a gap between the valve core 21 and the channel wall of the water passage 101; when the valve core 21 is in the third position, the valve core 21 and the sealing ring 22 are spaced apart; when the valve core 21 is in the fourth position, the valve core 21 and the sealing ring 22 abut against each other; and the sealing ring 22 seals the gap between the valve core 21 and the channel wall of the water passage 101. Through the precise contact between the sealing ring 22 and the valve core 21, it is ensured that the water flow is completely isolated when the valve core is closed, avoiding leakage problems. The function of the sealing ring 22 is to seal the gap between the valve core 21 and the water circuit assembly 1, preventing unfiltered or contaminated water from flowing out of the system and ensuring the stability of system operation.

[0051] like Figure 11 and Figure 12 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a step 104 is formed on the channel wall of the water passage 101, and the sealing ring 22 is engaged at the step 104. The step 104 allows for precise positioning of the sealing ring 22, ensuring its sealing effect.

[0052] In addition to the features of the above embodiments, this embodiment further specifies that: the sealing ring 22 is disposed on the valve core 21; when the valve core 21 is in the third position, there is a gap between the sealing ring 22 and the channel wall of the water passage 101; when the valve core 21 is in the fourth position, the sealing ring 22 abuts against the channel wall of the water passage 101.

[0053] In addition to the features of the above embodiments, this embodiment further specifies that: a protrusion is formed on the channel wall of the water passage 101, and when the valve core 21 is in the fourth position, the sealing ring 22 abuts against the protrusion; or; the cross-section of the water passage 101 gradually increases from the inlet 102 towards the outlet 103 in the flow direction. The protrusion design on the water passage 101 ensures that the sealing ring 22 can firmly contact the protruding portion, enhancing the sealing effect. This structural design not only improves the durability of the sealing ring but also effectively prevents wear or aging of the sealing ring, extending the service life of the equipment. When the valve core is in the fourth position, the sealing ring abuts against the protrusion, making the seal tighter, reducing the risk of water leakage, and ensuring that the system can operate stably for a long time. Alternatively, by gradually increasing the cross-section of the water passage 101 from the inlet 102 towards the outlet 103 in the flow direction, the sealing ring 22 can abut against the inner wall of the water passage 101 to achieve a seal.

[0054] like Figure 7 and Figure 8As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the valve core 21 includes a sealing platform 211 and a push block 212. The push block 212 is disposed on the sealing platform 211 and located on the side of the sealing platform 211 facing the water inlet 102. The sealing platform 211 is movable relative to the water circuit assembly 1 and abuts against the reset member 3. The sealing ring 22 is disposed on the water circuit assembly 1. The sealing platform 211 has at least a fifth position and a sixth position. When the sealing platform 211 is in the fifth position, the sealing platform 211 and the sealing ring 22 are spaced apart. When the sealing platform 211 is in the sixth position, the sealing platform 211 abuts against the sealing ring 22, and the sealing ring 22 seals the gap between the sealing platform 211 and the channel wall of the water passage 101. Through at least two positions of the sealing platform 211, namely the fifth position and the sixth position, the control of water flow is more flexible. When the sealing platform is in the fifth position, the water passage 101 remains unobstructed, and water flow can pass freely. When the sealing platform is in the sixth position, the water flow is completely cut off. This switching mechanism ensures that the water flow can be stopped when needed, preventing unnecessary water waste. Especially when replacing filter cartridges or maintaining equipment, it effectively prevents the purified water from being contaminated.

[0055] like Figure 7 and Figure 8 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the valve core 21 also includes a guide rod 213, which is disposed on the sealing platform 211 and located on the side of the sealing platform 211 away from the push block 212. The reset member 3 is provided with a guide channel 303, and the guide rod 213 extends into the guide channel 303 and can move relative to the guide channel 303. The relative movement between the guide rod 213 and the guide channel 303 ensures that the valve core maintains smooth movement during switching. The guide channel 303 provides a fixed path for the guide rod 213, avoiding the problem of the valve core getting stuck or moving unevenly due to lack of guiding support during movement, thereby improving the smoothness and response speed of the entire water circuit system.

[0056] like Figure 15 and Figure 16As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the valve core 21 also includes a first limiting block 214, and there are multiple first limiting blocks 214. These multiple first limiting blocks 214 are disposed on the sealing platform 211 and arranged along the circumference of the sealing platform 211. The reset member 3 has a mounting cavity 301, and a water passage notch 302 communicating with the mounting cavity 301 is provided on the cavity wall of the mounting cavity 301. The first guide groove 304 is provided on the cavity wall of the mounting cavity 301, and the first guide groove 304 is arranged along the length direction of the reset member 3. There are multiple first guide grooves 304, and the multiple first limiting blocks 214 can slide within the space defined by the multiple first guide grooves 304. The cooperation of the first limiting blocks 214 and the first guide grooves 304 ensures that the movement of the valve core is not only smooth but also clearly restricted, so that the valve core is always on the designed path, avoiding unnecessary lateral movement. Multiple limit blocks are distributed circumferentially to ensure that the valve core can switch precisely between multiple positions and maintain the balance of movement, avoiding malfunctions caused by excessive friction or unstable movement.

[0057] like Figure 4 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: when the sealing platform 211 is in the fifth position, the distance between it and the sealing ring 22 is L1, where L1 is greater than 10mm and less than 30mm. The spacing between the sealing platform 211 and the sealing ring 22 provides greater clearance, ensuring the flow rate of water and avoiding excessive obstruction of the flowing water.

[0058] like Figure 3 and Figure 4As shown, in addition to the features of the above embodiments, this embodiment further defines: the water circuit assembly 1 includes a water circuit board body 11 and a sealing assembly 12. The water circuit board body 11 has a through water passage 101. One end of the water circuit board body 11 has an installation port 105 communicating with the water passage 101, and the other end of the water circuit board body 11 has a water inlet 102. The water outlet 103 is located on the cavity wall of the water passage 101. The sealing assembly 12 is disposed on the water circuit board body 11 and located at the installation port 105. The end of the reset member 3 away from the water cut-off assembly 2 abuts against the sealing assembly 12. Through the cooperative design of the sealing assembly 12 and the installation port 105, it is ensured that the connection between the water circuit board body and other accessories can form a tight sealed environment to prevent water leakage. The sealing assembly 12 can effectively prevent external factors from affecting the water flow channel, improve the sealing and stability of the overall equipment, and thus improve the reliability of the water circuit system. The end of the reset component 3 furthest from the water-cutting component 2 abuts against the sealing component 12, ensuring accurate operation of the sealing component when water flow stops. The reset component provides a stable return mechanism, helping the sealing component maintain optimal operating condition during use. This design not only extends the equipment's lifespan but also reduces wear and tear and malfunctions caused by frequent adjustments.

[0059] like Figure 4 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the sealing assembly 12 includes a plug 121, a sealing ring 122 and a support 123. The plug 121 is disposed on the water circuit board body 11 and located at the mounting port 105. The sealing ring 122 is sandwiched in the gap between the plug 121 and the cavity wall of the flow channel 101. The support 123 is located in the flow channel 101 and abuts against the plug 121 and the reset member 3 respectively.

[0060] like Figure 4 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the sealing assembly 12 includes a plug 121, a sealing ring 122 and a support column 124. The plug 121 is disposed on the water circuit board body 11 and located at the mounting port 105. The sealing ring 122 is sandwiched in the gap between the plug 121 and the cavity wall of the flow channel 101. The support column 124 is located in the flow channel 101 and abuts against the plug 121 and the reset member 3 respectively.

[0061] like Figure 13 and Figure 15As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the reset component 3 includes a reset mounting block 31 and an elastic component. The reset mounting block 31 is disposed on the water circuit assembly 1 and located within the water passage 101. One end of the elastic component abuts against the mounting block 31, and the other end of the elastic component abuts against the water cut-off assembly 2. Through the cooperation between the elastic component, the reset mounting block 31, and the water cut-off assembly 2, the reset component can play an important role in water flow management. The elastic characteristics of the elastic component allow the water circuit assembly to withstand a certain external force, and when the water cut-off assembly 2 is in a non-working state, it can automatically restore the normal working state of the system, ensuring the stability of the water circuit system. The design of the elastic component provides a self-recovery function for the entire system, enhancing the adaptability of the system.

[0062] like Figure 14 and Figure 15 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the mounting block 31 is provided with a mounting cavity 301 and a guide channel 303, the mounting cavity 301 communicates with the guide channel 303, the side wall of the mounting block 31 is provided with a water passage notch 302 communicating with the mounting cavity 301, the inner wall of the mounting cavity 301 is provided with a first guide groove 304, at least a portion of the water-cutting component 2 is located in the mounting cavity 301, a portion of the water-cutting component 2 is located in the first guide groove 304 and can move within the first guide groove 304, and a portion of the water-cutting component 2 extends into the guide channel 303 and can move within the guide channel 303. The design of the guide channel 303 enables the water-cutting component 2 to move precisely along a set track. The guide channel 303 not only provides movement space for the water-cutting component, but also ensures that it will not deviate or get stuck during movement, thereby ensuring the accuracy and stability of water flow control. The space within the mounting cavity 301 provides support for the water-cutting component 2, enabling it to maintain a fixed position during operation and avoiding misoperation caused by loosening or deviation of components. The water passage notch 302 on the side wall of the mounting block 31 communicates with the mounting cavity 301, forming a water passage. This design provides a flow path for water when needed and seals the passage when the water shut-off component 2 is closed, ensuring precise water flow management. The water passage notch 302 ensures smooth water flow without blockage. The water shut-off component 2 can move smoothly within the guide groove 304, ensuring a rapid response when water flow needs to be switched, avoiding system failure due to slow switching.

[0063] like Figure 13 and Figure 15As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the mounting block 31 includes a mounting shell 311, a guide post 312, and a second limiting block 313. The mounting shell 311 is provided with a mounting cavity 301. The side wall of the mounting shell 311 is provided with a water passage notch 302 communicating with the mounting cavity 301. The inner wall of the mounting shell 311 is provided with a first guide groove 304. The first guide groove 304 is arranged along the length direction of the mounting shell 311. Part of the water component 2 is located in the first guide groove 304 and can move within the first guide groove 304. The guide post 312 is disposed on the mounting shell 311. Part of the guide post 312 is located in the mounting cavity 301 and part of the mounting cavity 303 is located within the mounting cavity 301. Outside the guide post 312, a guide channel 303 is provided, which communicates with the mounting cavity 301. Part of the water-cutting component 2 extends into the guide channel 303 and can move within it. Multiple second limiting blocks 313 are provided on the outer wall of the mounting shell 311, arranged circumferentially along the mounting shell 311. Multiple second guide grooves 106 are provided on the inner wall of the water passage 101, extending along its direction. These grooves adapt to the second limiting blocks 313, allowing them to move within them. The guide channel 303 of the guide post 312 enables the water-cutting component 2 to move stably within the mounting cavity 301, providing a precise movement path and ensuring that the component does not tilt or jam during movement, thus improving stability and positioning accuracy. The guide post provides support and ensures that the component moves along a set path through the guide channel, thereby reducing the risk of system malfunction. The second limit block 313 cooperates with the second guide groove 106, allowing the second limit block to move within the guide groove and complete positioning.

[0064] Example 2

[0065] This embodiment discloses a water purification device, which includes the aforementioned filter replacement and water shut-off assembly.

[0066] The second aspect of this application discloses a water purification device. By using a filter replacement water cut-off component, the liquid flow channel can be blocked in time when the filter element is replaced, thus preventing liquid backflow and avoiding contamination of the internal liquid by external substances.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A filter replacement and water shut-off assembly, characterized in that, The aforementioned filter replacement and water shut-off assembly includes: Water circuit component (1), the water circuit component (1) is provided with a water passage (101), the water circuit component (1) is provided with an inlet (102) and an outlet (103) respectively connected to the water passage (101); A water-cutting component (2), at least a portion of which is located within the water passage (101) and which is movable relative to the water passage component (1); The reset member (3) has one end abutting against the water cut-off assembly (2) and the other end abutting against the cavity wall of the water passage (101); When the water-cutting component (2) moves within the water passage (101), it has at least a first position and a second position. When the water-cutting component (2) is in the first position, the water inlet (102), the water passage (101), and the water outlet (103) are connected in sequence. When the water-cutting component (2) is in the second position, the water-cutting component (2) blocks the water passage (101) located between the water inlet (102) and the water outlet (103), and the water inlet (102) and the water outlet (103) are disconnected.

2. The water shut-off assembly for filter replacement according to claim 1, characterized in that, The water shut-off assembly (2) includes a valve core (21) and a sealing ring (22). The valve core (21) abuts against the reset member (3). The valve core (21) is movable relative to the water circuit assembly (1) and abuts against the reset member (3). The valve core (21) has at least a third position and a fourth position. When the valve core (21) is in the third position, the valve core (21) opens the water passage (101) between the water inlet (102) and the water outlet (103). When the valve core (21) is in the fourth position, the valve core (21) and the sealing ring (22) block the water passage (101) between the water inlet (102) and the water outlet (103).

3. The water shut-off assembly for filter replacement according to claim 2, characterized in that, The sealing ring (22) is disposed on the water circuit assembly (1). There is a gap between the valve core (21) and the channel wall of the water passage (101). When the valve core (21) is in the third position, the valve core (21) and the sealing ring (22) are spaced apart. When the valve core (21) is in the fourth position, the valve core (21) and the sealing ring (22) abut against each other. The sealing ring (22) seals the gap between the valve core (21) and the channel wall of the water passage (101). And / or, a step (104) is formed on the channel wall of the water passage (101), and the sealing ring (22) is engaged at the step (104).

4. The water shut-off assembly for filter replacement according to claim 2, characterized in that, The sealing ring (22) is disposed on the valve core (21). When the valve core (21) is in the third position, there is a gap between the sealing ring (22) and the channel wall of the water passage (101). When the valve core (21) is in the fourth position, the sealing ring (22) abuts against the channel wall of the water passage (101). A protrusion is formed on the channel wall of the water passage (101). When the valve core (21) is in the fourth position, the sealing ring (22) abuts against the protrusion; or; the cross section of the water passage (101) gradually increases from the inlet (102) toward the outlet (103) in the flow direction.

5. The water shut-off assembly for filter replacement according to claim 2, characterized in that, The valve core (21) includes a sealing platform (211) and a push block (212). The push block (212) is disposed on the sealing platform (211) and located on the side of the sealing platform (211) facing the water inlet (102). The sealing platform (211) is movable relative to the water circuit assembly (1) and abuts against the reset member (3). The sealing ring (22) is disposed on the water circuit assembly (1). The sealing platform (211) has at least a fifth position and a sixth position. When the sealing platform (211) is located in the fifth position, the sealing platform (211) and the sealing ring (22) are spaced apart. When the sealing platform (211) is located in the sixth position, the sealing platform (211) abuts against the sealing ring (22). The sealing ring (22) seals the gap between the sealing platform (211) and the channel wall of the water passage (101).

6. The water shut-off assembly for filter replacement according to claim 5, characterized in that, The valve core (21) also includes a guide rod (213), which is disposed on the sealing platform (211) and located on the side of the sealing platform (211) away from the push block (212). The reset member (3) is provided with a guide channel (303), and the guide rod (213) extends into the guide channel (303) and is movable relative to the guide channel (303). And / or the valve core (21) further includes a first limiting block (214), the number of the first limiting blocks (214) is multiple, the multiple first limiting blocks (214) are arranged on the sealing platform (211) and arranged along the circumference of the sealing platform (211), the reset member (3) is provided with a mounting cavity (301), the reset member (3) is provided with a water passage notch (302) communicating with the mounting cavity (301), the cavity wall of the mounting cavity (301) is provided with a first guide groove (304), the first guide groove (304) is arranged along the length direction of the reset member (3), the number of the first guide groove (304) is multiple, and the multiple first limiting blocks (214) can slide within the space defined by the multiple first guide grooves (304); And / or the distance from the sealing ring (22) to the sealing platform (211) when it is in the fifth position is L1, where L1 is greater than 10 mm and less than 30 mm.

7. The water shut-off assembly for filter replacement according to claim 1, characterized in that, The water circuit assembly (1) includes a water circuit board body (11) and a sealing assembly (12). The water circuit board body (11) is provided with a through water passage (101). One end of the water circuit board body (11) is provided with an installation port (105) communicating with the water passage (101). The other end of the water circuit board body (11) is provided with a water inlet (102). The water outlet (103) is located on the cavity wall of the water passage (101). The sealing assembly (12) is disposed on the water circuit board body (11) and located at the installation port (105). The end of the reset member (3) away from the water cut-off assembly (2) abuts against the sealing assembly (12).

8. The water shut-off assembly for filter replacement according to claim 1, characterized in that, The reset component (3) includes a reset mounting block (31) and an elastic component. The reset mounting block (31) is disposed on the water circuit assembly (1) and located in the water passage (101). One end of the elastic component abuts against the mounting block (31), and the other end of the elastic component abuts against the water cut-off assembly (2).

9. The water shut-off assembly for filter replacement according to claim 8, characterized in that, The mounting block (31) is provided with a mounting cavity (301) and a guide channel (303). The mounting cavity (301) is connected to the guide channel (303). The side wall of the mounting block (31) is provided with a water passage notch (302) that is connected to the mounting cavity (301). The inner wall of the mounting cavity (301) is provided with a first guide groove (304). At least a portion of the water-cutting component (2) is located in the mounting cavity (301). A portion of the water-cutting component (2) is located in the first guide groove (304) and can move within the first guide groove (304). A portion of the water-cutting component (2) extends into the guide channel (303) and can move within the guide channel (303). And / or the mounting block (31) includes a mounting shell (311), a guide post (312), and a second limiting block (313). The mounting shell (311) has a mounting cavity (301). The side wall of the mounting shell (311) has a water passage notch (302) communicating with the mounting cavity (301). The inner wall of the mounting shell (311) has a first guide groove (304). The first guide groove (304) is arranged along the length direction of the mounting shell (311). Part of the water component (2) is located in the first guide groove (304) and can move within the first guide groove (304). The guide post (312) is disposed on the mounting shell (311). Part of the guide post (312) is located inside the mounting cavity (301) and part is located outside the mounting cavity (301). A guide channel (303) is provided, which communicates with the mounting cavity (301). A portion of the water-cutting component (2) extends into the guide channel (303) and is movable within the guide channel (303). A second limiting block (313) is disposed on the outer wall of the mounting shell (311). There are multiple second limiting blocks (313), which are arranged along the circumference of the mounting shell (311). A plurality of second guide grooves (106) are provided on the inner wall of the water passage (101), which are arranged along the extension direction of the water passage (101). The plurality of guide grooves (106) are adapted to the plurality of second limiting blocks (313), and the second limiting blocks (313) are movable within the guide grooves (106).

10. A water purification device, characterized in that, The water purification device includes the filter replacement and water shut-off assembly as described in any one of claims 1 to 9.

Images