A water inlet valve with bypass outlet

Abstract

This invention discloses a water inlet valve with bypass outlet, comprising an inlet pipe, a valve body, a water-stopping component, and a buoyancy component. The inlet pipe is installed inside a water tank and connects to an external water pipe and the valve body. The valve body has a top cover, a water guide, and a bypass outlet located on the outer wall. The valve body has an inlet channel. The top cover is installed on the valve body and forms a cavity with it. The top cover has a pressure-receiving hole communicating with the cavity. The water guide is located inside the inlet channel and has a water guide that communicates vertically and horizontally, as well as an outwardly extending extension. The extension has an opening connecting the cavity and the bypass outlet. The buoyancy component controls the opening and closing of the pressure-receiving hole as the water level rises and falls. The water-stopping component is located inside the cavity and opens and closes the water guide as the buoyancy component opens and closes the pressure-receiving hole. This invention allows the bypass outlet to be located above or below the water level, enabling a water inlet valve that meets different outlet position requirements through bypass outlet, without requiring a complex structure and is less prone to leakage.

Description

Technical Field

[0001] This invention relates to the field of water inlet valve technology, and more particularly to a water inlet valve with bypass outlet. Background Technology

[0002] Existing water inlet valves typically have a double-layered inlet pipe. The inner layer is a connecting conduit for water intake. Because the conduit is connected inside the inlet pipe, it needs to be very long to prevent leakage when the inlet pipe is adjusted up or down. The outer layer has an outlet hole at the bottom for water discharge. The drawbacks are that this inlet pipe structure is complex, difficult to manufacture, and expensive. The outlet can only be located at the bottom, and the adjustment distance means that the outlet hole cannot exceed the water level line, making it difficult to meet the requirements of adjustment height and different outlet hole positions. For example, if certain countries require the outlet hole to be located above the water level line, then a water inlet valve that can bypass water discharge to meet the requirements of different outlet positions needs needs to be designed, without a complex structure and less prone to leakage. Summary of the Invention

[0003] The purpose of this invention is to provide a water inlet valve with a bypass outlet.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A water inlet valve with a bypass outlet includes an inlet pipe, a valve body, a water stop assembly, and a buoyancy assembly. The inlet pipe is installed inside a water tank and connects to an external water pipe and the valve body. The valve body has a top cover, a water guide, and a bypass outlet located on the outer wall. The valve body has an inlet channel. The top cover is installed on the valve body and forms a cavity with it. The top cover has a pressure hole communicating with the cavity. The water guide is located inside the inlet channel and has a water guide that communicates vertically and an outwardly extending extension. The extension has an opening that connects the cavity and the bypass outlet. The buoyancy assembly is installed on the valve body and is used to control the opening and closing of the pressure hole as the water level rises and falls. The water stop assembly is located inside the cavity and opens and closes the water guide as the buoyancy assembly moves to open and close the pressure hole.

[0006] Furthermore, the valve body is provided with a mounting seat on the top, the mounting seat is installed with the upper cover and has a certain space to form a cavity for water outlet, the bypass outlet is provided on the mounting seat and connects the cavity and the water tank vertically, the extension is covered on the mounting seat and has a water-stopping surface that cooperates with the water-stopping component around the water guide.

[0007] Furthermore, the extension has an annular groove between the water-stopping surface and the water inlet. The water-stopping assembly includes a protective frame, a water-stopping pad, and a valve core. The protective frame is an annular structure and is disposed in the annular groove. The water-stopping pad is placed on the protective frame and has a through hole communicating with the water inlet. The valve core is movably inserted into the through hole through a valve rod for opening and closing the through hole.

[0008] Furthermore, the top of the water-stop pad abuts against the inner wall of the upper cover and forms a pressure chamber that communicates with the through hole and the pressure hole respectively. The valve core cover is located on the through hole. When water enters, the buoyancy component opens the pressure hole. One group of water enters the pressure chamber from the water inlet channel along the through hole, and then flows out from the pressure hole and opens the water-stop pad. Another group of water enters the cavity along the water inlet channel, passes through the protective frame and the opening, and enters the bypass outlet.

[0009] Furthermore, the water-stop pad extends outward on its outer wall to form an anti-siphon pad that matches the water-stop surface. During anti-siphoning, the anti-siphon pad seals downward and adheres tightly to the water-stop surface to cut off the connection between the bypass outlet and the inlet channel.

[0010] Furthermore, the upper cover is provided with at least one anti-siphon hole. When water enters, the anti-siphon pad is pressed against the inner wall of the upper cover by the water pressure and seals the anti-siphon hole.

[0011] Furthermore, the top of the water-stop pad abuts against the inner wall of the upper cover and forms a pressure chamber that communicates with the through hole and the pressure hole respectively. The valve core cover is located on the through hole. When water enters, the buoyancy component opens the pressure hole. A group of water enters the pressure chamber from the water inlet channel along the through hole, and then flows out from the pressure hole and opens the water-stop pad. Under the action of water pressure, the anti-siphon pad moves upward and adheres tightly to the upper cover, away from the water-stop surface and seals the anti-siphon hole. Another group of water enters the cavity along the water inlet channel, passes through the protective frame and the opening and enters the bypass outlet.

[0012] Furthermore, the valve body has an outlet housing on its outer wall that communicates with the bypass outlet, and the outlet at the bottom of the outlet housing is positioned below or above the water level.

[0013] By adopting the above technical solution, the present invention has the following advantages compared with the prior art:

[0014] The valve body of this invention is connected to a tap water pipe via an inlet valve. Through the cooperation of the water guide component, water stop component, and buoyancy component set in the valve body, the inlet valve can discharge water according to changes in water level. When the water level drops, the buoyancy component opens the pressure hole, allowing air to enter the cavity. Tap water enters the cavity formed by the upper cover and the valve body along the inlet pipe and the inlet channel of the valve body. The water pressure pushes the water stop component upward to open the channel between the outlet and the bypass outlet. The tap water then flows into the water tank along the outlet and the bypass outlet. The structure is ingenious and does not require a complex structure. The bypass outlet can be set above or below the water level, realizing an inlet valve that meets the needs of different outlet positions by bypassing water discharge. It does not require a complex structure and is not prone to leakage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention, in which the inlet valve is installed inside the water tank and the bypass outlet is located below the water level.

[0016] Figure 2 This is a schematic diagram of the structure of the present invention, in which the inlet valve is installed inside the water tank and the bypass outlet is located on the water level line.

[0017] Figure 3 This is a schematic diagram of the specific structure of the present invention;

[0018] Figure 4 for Figure 3 Enlarged view of part A in the image;

[0019] Figure 5 This is a schematic diagram of the water-stopping component of the present invention without an anti-siphon pad;

[0020] Figure 6 This is a schematic diagram of the water-stopping component with an anti-siphon pad according to the present invention;

[0021] Figure 7 This is a schematic diagram of the water guide component of the present invention;

[0022] Figure 8 This is a schematic diagram of the water guide component of the present invention from another angle;

[0023] Figure 9 This is a cross-sectional view of the water guide component of the present invention;

[0024] Figure 10 This is a schematic diagram of the top cover of the present invention without anti-siphon holes;

[0025] Figure 11 This is a schematic diagram of the top cover with anti-siphon holes of the present invention;

[0026] Figure 12 This is an exploded view of the buoyancy component of the present invention;

[0027] Figure 13 This is a schematic diagram of the valve body of the present invention without a water outlet housing;

[0028] Figure 14 This is a schematic diagram of the valve body with a water outlet housing according to the present invention;

[0029] Figure 15 This is a schematic diagram of the water inlet pipe of the present invention;

[0030] Figure 16 This is a schematic diagram of the specific structure of an existing water inlet valve.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Inlet pipe; 2. Valve body; 3. Water stop assembly; 4. Buoyancy assembly; 21. Top cover; 22. Water guide; 23. Bypass outlet; 24. Inlet channel; 25. Mounting base; 26. Locking buckle; 27. Outlet housing; 211. Pressurized hole; 212. Anti-siphon hole; 221. Water guide; 222. Extension; 223. Opening; 224. Water stop surface; 31. Protective frame; 32. Water stop pad; 33. Valve core; 34. Through hole; 35. Anti-siphon pad; 41. Float; 42. Adjusting rod; 43. Check valve; 44. Lifting rod; 45. Sleeve; 46. Plug; 411. Mounting pipe; 412. Sleeve; 413. Valve port; 414. Outer float; 415. Inner float; 431. Claw. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0034] It should be noted that in this invention, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element of this invention must have a specific orientation, and therefore should not be construed as a limitation of this invention.

[0035] Example

[0036] Cooperate Figures 1 to 15 As shown, the present invention discloses a water inlet valve with a bypass outlet, including an inlet pipe 1, a valve body 2, a water-stopping component 3, and a buoyancy component 4. The inlet pipe 1 is installed in a water tank and connects to an external water pipe and the valve body 2. The valve body 2 is provided with an upper cover 21, a water guide 22, and a bypass outlet 23 placed on the outer wall. The valve body 2 is provided with an inlet channel 24. The upper cover 21 is installed on the valve body 2 and forms a cavity with it. The upper cover 21 is provided with a pressure hole 211 communicating with the cavity. The water guide 22 is provided in the inlet channel 24 and is provided with a water guide 221 communicating with the upper and lower parts and an extension 222 extending outward. The extension 222 is provided with an opening 223 communicating with the cavity and the bypass outlet 23. The buoyancy component 4 is installed on the valve body 2 to control the opening and closing of the pressure hole 211 as the water level rises and falls. The water-stopping component 3 is disposed in the cavity and opens and closes the water guide 221 as the buoyancy component 4 moves to open and close the pressure hole 211.

[0037] The valve body 2 has a mounting base 25 on its top. The mounting base 25 is installed with the upper cover and has a certain space to form a cavity for water outlet. The bypass outlet 23 is set on the mounting base 25 and connects the cavity and the water tank from top to bottom. The extension 222 is covered on the mounting base 25 and has a water-stopping surface 224 that cooperates with the water-stopping component 3 around the water guide 221. The water-stopping surface 224 is preferably an annular convex ring.

[0038] The water guide 22 is inserted and installed in the water inlet channel 24 and has an annular groove on the outer wall. The mounting base 25 has an annular block at the water inlet channel 24 that engages with the annular groove. Water flows into the cavity along the water inlet channel 24 and the water guide port 221.

[0039] The mounting base 25 has an external snap-fit ​​structure on its outer wall, and the inner wall of the upper cover 21 has an internal snap-fit ​​structure that matches it, and it is installed by rotating and snapping.

[0040] The extension 222 has an annular groove between the water-stopping surface 224 and the water inlet 221. The water-stopping assembly 3 includes a protective frame 31, a water-stopping pad 32, and a valve core 33. The protective frame 31 has an annular structure and is set in the annular groove. The water-stopping pad 32 covers the protective frame 31 and has a through hole 34 communicating with the water inlet 221. The valve stem of the valve core 33 is movably inserted into the through hole 34.

[0041] The protective frame 31 has a mating foot at its bottom, which is used to install it in the annular groove.

[0042] The top of the water-stop pad 32 abuts against the inner wall of the upper cover 21 and forms a pressure chamber that communicates with the through hole 34 and the pressure hole 211 respectively. The valve core 33 is covered on the through hole 34 and has a bottom groove at its bottom that connects the through hole 34 and the pressure chamber.

[0043] When water enters, the buoyancy component 4 opens the pressure hole 211, and a group of water enters the pressure chamber from the water inlet channel 24 along the through hole 34. Then, it flows out from the pressure hole 211 and opens the water stop pad 32. Another group of water enters the chamber along the water inlet channel 24, passes through the protective frame 31 and the opening 223 and enters the bypass outlet 23.

[0044] When preventing siphoning, because our bypass outlet is located above the water level, when negative pressure is generated, air can be directly supplied from the outlet located above the water level to prevent siphoning.

[0045] The water-stop pad 32 also has an embodiment in which the water-stop pad 32 extends outward on its outer wall to form an anti-siphon pad 35 that cooperates with the water-stop surface 224. When preventing siphoning, the anti-siphon pad 35 seals downward and adheres tightly to the water-stop surface 224 to cut off the connection between the bypass outlet 23 and the inlet channel 24. When the water-stop pad 32 is provided with the anti-siphon pad 35, the water-stop surface 224 is located below the anti-siphon pad 35. When the water-stop pad is not provided with the anti-siphon pad 35, the water-stop surface 224 is located near the water-stop pad 32 and cooperates with it. Preferably, the anti-siphon pad 35 is provided on the water-stop pad 32.

[0046] Based on the embodiment of the anti-siphon pad 35, the upper cover 21 has at least one anti-siphon hole 212, and a plurality of anti-siphon holes 212 are arranged around the upper cover 21.

[0047] When water enters, the buoyancy component 4 opens the pressure hole 211, and air enters the pressure chamber and through hole 34 along the pressure hole 211 and the bottom groove. One group of water enters the pressure chamber from the water inlet channel 24 along the through hole 34, and then flows out from the pressure hole 211 and opens the water stop pad 32. The anti-siphon pad 35 moves upward under the pressure of the water inlet and sticks to the top cover 21, away from the water stop surface 224 and seals the anti-siphon hole 212. Another group of water enters the cavity along the water inlet channel 24, passes through the protective frame 31 and the opening 223 and enters the bypass outlet 23.

[0048] During anti-siphon operation, the valve core 33 is squeezed downward by suction and compresses the bottom groove, preventing air from passing through the through hole 34 and entering the air intake channel. The water stop pad 32 is moved downward by suction and fits against the water stop surface 224, disconnecting the cavity from the water intake channel 24.

[0049] The valve body 2 and the mounting base 25 are preferably integrally formed. The mounting base 25 is provided with a limiting plate at its bottom, which limits the range of motion of the buoyancy component 4 and prevents the buoyancy component 4 from detaching from the valve body 2.

[0050] By setting two types of water-stop pad structures suitable for bypass outlets at different heights, when the bypass outlet is set at the water level, both water-stop pads can achieve anti-siphon and water-stopping effects. When the bypass outlet is set at the water level, the water-stop pad structure with anti-siphon pad is preferred.

[0051] refer to Figure 16 Compared with existing technologies, the bypass outlet in this embodiment is located on the valve body. This has two advantages: firstly, it is simple to manufacture and has lower production costs; secondly, the bypass outlet can be located either above or below the water level. When the bypass outlet is located above the water level, no additional anti-siphon structure is needed, i.e., the top cover has no anti-siphon hole, and the water-stop pad has no extended anti-siphon pad, because the negative pressure generated can be directly offset by air intake from the bypass outlet located above the water level. When the outlet is located below the water level, an anti-siphon structure is required, i.e., the top cover has an anti-siphon hole, and the water-stop pad has an anti-siphon pad, to prevent water from being drawn in from the bypass outlet.

[0052] The buoyancy assembly 4 includes a float 41, an adjusting rod 42, a one-way valve 43, and a lifting rod 44. The float 41 is movably mounted on the valve body 2 via a seat 45. The float 41 is provided with an installation pipe 411, a sleeve 412 that communicates with the upper and lower parts, and a valve port 413 with the opening facing downward. The adjusting rod 42 is threaded onto the installation pipe 411 and inserted into the sleeve 412. The one-way valve 43 is installed on the valve port 413 and opens and closes the valve port 413 as the water level rises and falls. One end of the lifting rod 44 is rotatably mounted on the adjusting rod 42, and the other end is rotatably mounted on the upper cover 21. The lifting rod 44 is provided with a plug 46 above the upper cover 21 for opening and closing the pressurized hole 211 as it rotates.

[0053] The float 41 includes an outer float 414 and an inner float 415. The outer float 414 is fixedly connected to the sleeve 45 and the sleeve 412 respectively and has an upward-facing installation cavity. The installation cavity communicates with the valve port 413. The inner float 415 is a hollow structure and has a downward-facing bottom opening. The one-way valve 43 is installed at the bottom of the float 41 and has a claw 431 that passes through the valve port 413 and engages with the inner wall of the outer float 414. The one-way valve 43 moves in the valve port 413 through the claw 431, making it difficult for water to flow out of the float 414. When the water level rises, the one-way valve 43 moves upward under buoyancy and blocks the valve port 413. When the water level drops, the one-way valve 43 moves downward with the water level, opens and moves away from the valve port 413.

[0054] The inner float 415 is an inverted bucket structure, and the bottom of the outer float 414 is provided with a body. The one-way valve 43 moves up and down within the range of this body. The one-way valve 43 is a hollow box or a box with its opening facing downwards. Multiple claws are provided and arranged around its top. The diameter of the box is larger than the valve port 413. When the one-way valve 43 floats upward under buoyancy, it fits with the sealing ring arranged around the valve port 413 to achieve a seal, so that the inner float 415 and the outer float 414 do not enter water and can float upward along the valve body 2 under buoyancy.

[0055] When the water level rises, the float 41 floats upward, causing the adjusting rod 42 to float upward. The lifting rod 44 and one end of the adjusting rod 42 rotate upward, while the other end of the top cover 21 rotates downward, pressing down the plug to seal the pressure hole 211. When the pressure hole 211 no longer allows air in, it cannot continue to allow air in. Conversely, when the water level drops, the lifting rod 44 causes the plug to open and move away from the pressure hole 211, allowing air to enter the valve body 2. The valve body 2 then replenishes the water tank by discharging water through the bypass outlet 23.

[0056] The adjusting rod 42 has an upper part and a lower part. The upper part has a rotating hole and is rotatably installed with the lifting rod 44. The lifting rod 44 is rotatably installed in the rotating hole via a rotating shaft. The lower part has a threaded structure and is threadedly installed with the sleeve 412. The height of the upper part is adjusted by rotating the lower part.

[0057] The top of the cover 21 is surrounded by a mounting plate and has a rotating hole. The lifting rod 44 is placed on the mounting plate and is mounted in the rotating hole by rotating through a pivot.

[0058] The water inlet pipe 1 has multiple adjusting blocks at equal intervals on its outer wall, with each adjusting block arranged sequentially from top to bottom. The valve body 2 has an adjusting groove on its inner wall that cooperates with the adjusting blocks, and a locking buckle 26 on its outer wall that locks the valve body 2 and the water inlet pipe 1.

[0059] The valve body 2 has an expandable expansion section at its bottom. Specifically, it has multiple expansion ports to facilitate the valve body 2 being fitted onto the inlet pipe 1. The adjusting slot is located on the inner wall of the expansion section. When the locking buckle is not locked, the adjusting slot and the adjusting block are not locked. The water level in the water tank can be adjusted by adjusting the height of the valve body 2. After adjustment, the expansion section is locked by the locking buckle, so that the valve body 2 is close to the inlet pipe 1. The adjusting block and the adjusting slot are engaged to restrict the movement of the valve body 2. A limit block is provided on the outer wall of the expansion section to prevent the locking buckle from falling off.

[0060] In another embodiment, the valve body 2 has an outlet housing 27 connected to the bypass outlet 23 on its outer wall. The outlet portion at the bottom of the outlet housing 27 is positioned below or above the water level. The outlet housing 27 and the valve body 2 are preferably integrally formed. The outlet housing 27 forms a water guide pipe structure on the outer wall of the valve body 2 for water discharge. The length and outlet position of the outlet housing 27 can be set as needed to meet the requirements of different specifications and can be flexibly adjusted.

[0061] The length of the intake port of the bypass outlet 23 can be determined by the outlet housing 27. The length can be customized and adjusted according to the needs. The length can be set above or below the water level.

[0062] When the outlet housing 27 is not installed, the bypass outlet 23 of the valve body 2 is set on the water level line and water is discharged directly.

[0063] In this embodiment, the valve body 2 is connected to the tap water pipe through the inlet valve. The water guide 22, the water stop component 3, and the buoyancy component 4 set in the valve body 2 cooperate to enable the inlet valve to discharge water according to the water level change. When the water level drops, the buoyancy component 4 opens the pressure hole 211, allowing air to enter the cavity. The tap water enters the cavity formed by the upper cover 21 and the valve body 2 through the inlet pipe 1 and the inlet channel 24 of the valve body 2. The water pressure pushes the water stop component 3 to open the channel between the opening 223 and the bypass outlet 23. The tap water then flows into the water tank through the outlet 23 and the bypass outlet 23. The structure is ingenious and does not require a complicated structure. The bypass outlet 23 can be set above or below the water level, realizing an inlet valve that meets the needs of different outlet positions by bypassing water discharge. It does not require a complicated structure and is not prone to leakage.

[0064] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A water inlet valve with bypass outlet, characterized in that: The system includes an inlet pipe, a valve body, a water-stopping assembly, and a buoyancy assembly. The inlet pipe is installed inside the water tank and connects to an external water pipe and the valve body. The valve body has a top cover, a water guide, and a bypass outlet on the outer wall. The valve body has an inlet channel. The top cover is installed on the valve body and forms a cavity with it. The top cover has a pressure hole communicating with the cavity. The water guide is located inside the inlet channel and has a water guide that communicates with the upper and lower parts and an extension that extends outward. The extension has an opening that connects the cavity and the bypass outlet. The buoyancy assembly is installed on the valve body and is used to control the opening and closing of the pressure hole as the water level rises and falls. The water-stopping assembly is located inside the cavity and opens and closes the water guide as the buoyancy assembly moves to open and close the pressure hole. The valve body is provided with a mounting seat on the top. The mounting seat is installed with the upper cover and has a certain space to form a cavity for water outlet. The bypass outlet is provided on the mounting seat and connects the cavity and the water tank from top to bottom. The extension is covered on the mounting seat and has a water-stopping surface that cooperates with the water-stopping component around the water guide. The extension has an annular groove between the water-stopping surface and the water inlet. The water-stopping assembly includes a protective frame, a water-stopping pad, and a valve core. The protective frame is an annular structure and is set in the annular groove. The water-stopping pad is placed on the protective frame and has a through hole communicating with the water inlet. The valve core is movably inserted into the through hole through a valve rod for opening and closing the through hole. The valve body has an outlet shell on its outer wall that is connected to the bypass outlet, and the outlet at the bottom of the outlet shell is located below or above the water level.

2. The inlet valve with bypass outlet as described in claim 1, characterized in that: The top of the water-stop pad abuts against the inner wall of the upper cover and forms a pressure chamber that communicates with the through hole and the pressure hole respectively. The valve core cover is located on the through hole. When water enters, the buoyancy component opens the pressure hole. One group of water enters the pressure chamber from the water inlet channel along the through hole, and then flows out from the pressure hole and opens the water-stop pad. Another group of water enters the cavity along the water inlet channel, passes through the protective frame and the opening, and enters the bypass outlet.

3. A water inlet valve with bypass outlet as described in claim 2, characterized in that: The water-stop pad extends outward on its outer wall to form an anti-siphon pad that matches the water-stop surface. When preventing siphoning, the anti-siphon pad seals and adheres tightly to the water-stop surface downward to cut off the connection between the bypass outlet and the inlet channel.

4. A water inlet valve with bypass outlet as described in claim 3, characterized in that: The top cover has at least one anti-siphon hole. When water enters, the anti-siphon pad is pressed against the inner wall of the top cover by the water pressure and seals the anti-siphon hole.

5. A water inlet valve with bypass outlet as described in claim 4, characterized in that: The top of the water-stop pad abuts against the inner wall of the upper cover and forms a pressure chamber that communicates with the through hole and the pressure hole respectively. The valve core cover is located on the through hole. When water enters, the buoyancy component opens the pressure hole. A group of water enters the pressure chamber from the water inlet channel along the through hole, and then flows out from the pressure hole and opens the water-stop pad. Under the action of water pressure, the anti-siphon pad moves upward and adheres to the upper cover, away from the water-stop surface and seals the anti-siphon hole. Another group of water enters the cavity along the water inlet channel, passes through the protective frame and the opening and enters the bypass outlet.

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