Water inlet valve capable of reducing noise
By designing a T-shaped inlet valve structure and a float-type water-stopping assembly, the problem of high water flow noise in the inlet valve was solved, effectively reducing water flow noise and improving flow stability.
Patent Information
- Application Number
- CN202520151269.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-22
AI Technical Summary
The existing inlet valve has a lot of water flow noise, mainly due to the height difference between the outlet pipe and the bottom of the water tank.
A T-shaped inlet valve structure was designed, with the inner tube connected to the inlet and the outer tube having a vertical outlet. The water flow is controlled by a float and a water-stopping component. The water first enters the groove and the vertical pipe, and then flows into the water tank through the funnel pipe and the notch, reducing the noise from the direct drop.
It effectively reduces water flow noise, has a simple and reasonable structure, and reduces water flow noise through stratified flow, improving the uniformity and stability of water flow.
Smart Images

Figure CN223838214U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of toilet tank inlet valves, and more specifically, to an inlet valve that reduces noise. Background Technology
[0002] In existing water inlet valves, the inlet pipe is usually set vertically, while the outlet pipe is set at the top of the inlet pipe. Water enters the valve body from the bottom of the inlet pipe and enters the water storage tank through the outlet pipe. Water enters the water tank through the outlet pipe. Since the outlet of the outlet pipe falls directly into the water storage tank, the water flow noise is large due to the height difference between the outlet pipe and the bottom of the water tank. Therefore, there is an urgent need for an inlet valve that can reduce water flow noise. Utility Model Content
[0003] This invention provides a water inlet valve that reduces noise, aiming to improve the technical problem of excessive water flow noise in existing water inlet valves.
[0004] To achieve the above objectives, this utility model adopts the following technical solution: a noise-reducing water inlet valve, comprising a T-shaped main body, the main body being horizontally continuous, a water inlet at one end of the main body, and an inner tube and an outer tube at the other end, the main body having an installation thread at the water inlet, the inner tube connecting to the water inlet, and the outer tube having a vertically downward water outlet, with a water-stopping component at the ends of the inner and outer tubes, a float slidably fitted onto the vertical part of the main body, the float connecting to the water-stopping component, the float being positioned below the water outlet, a groove being formed on the upper surface of the float, a vertical pipe being provided in the groove, a water collection box being installed at the bottom of the vertical part of the main body, the water collection box having a drain outlet, a funnel tube being provided at the drain outlet, and several notches being formed between the funnel tube and the drain outlet.
[0005] Furthermore, the water-stopping assembly includes a pressure cap, a base, a movable block, and a support member. The base is installed at one end of the horizontal part of the main body. The movable block is located between the inner tube, the outer tube opening, and the base. The base has a first through hole, and the movable block has a second through hole. The pressure cap is hinged to the base on both sides. A crank extends from one side of the pressure cap on both sides of the hinge point. The crank is perpendicular to the pressure cap. The float is provided with a vertical rod, and one end of the crank is hinged to the top of the vertical rod.
[0006] Furthermore, several locking blocks are provided on the outer wall of the upper end of the funnel tube, and locking holes are opened at the bottom of the vertical part of the main body.
[0007] Furthermore, four symmetrical fan-shaped holes are provided on the upper side of the vertical pipe.
[0008] Furthermore, a rectifier screen is installed at the outlet.
[0009] Furthermore, the vertical rod is threaded, the float has a threaded hole, and the vertical rod is installed in the threaded hole via the thread.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] This utility model discloses a noise-reducing water inlet valve with a simple and ingenious design. It includes a T-shaped main body that is horizontally continuous. One end of the main body is provided with a water inlet, and the other end is provided with an inner tube and an outer tube. The main body has an installation thread at the water inlet. The inner tube is connected to the water inlet, and the outer tube has a vertically downward water outlet. Water-stop components are provided at the ends of the inner and outer tubes. A float is slidably fitted on the vertical part of the main body and is connected to the water-stop components. The float is located below the water outlet. A groove is opened on the upper end face of the float, and a vertical pipe is installed in the groove. A water collection box is installed at the bottom of the vertical part of the main body. The water collection box has a drain outlet, and a funnel tube is provided at the drain outlet. Several notches are formed between the funnel tube and the drain outlet. Water flows from the inlet through the inner pipe, the water-stop component, and the outer pipe to the outlet. The water flowing out of the outlet first falls into the groove, then flows through the vertical pipe to the water collection box, and then flows through the funnel pipe and the perforated flow channel to the bottom of the water tank, preventing water from falling directly from the outlet to the bottom of the water tank and reducing water flow noise caused by height difference. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the overall structure of a noise-reducing water inlet valve according to this utility model;
[0014] Figure 2 This is an exploded view of the water-stopping mechanism of a water inlet valve for reducing noise, according to this utility model.
[0015] Figure 3 This is a schematic diagram of the internal structure of one end of the main body of a noise-reducing water inlet valve according to this utility model.
[0016] Figure 4 This is a schematic diagram of the float structure of a water inlet valve for reducing noise according to this utility model;
[0017] Figure 5 This is a schematic diagram of the float structure of a water inlet valve for reducing noise, taken from another angle, according to this utility model.
[0018] Figure 6This is a schematic diagram of the water collection box structure of a water inlet valve for reducing noise, according to this utility model.
[0019] Explanation of main component symbols
[0020] 10. Main body; 101. Inlet; 102. Inner tube; 103. Outer tube; 1031. Outlet; 104. Float; 1041. Vertical pipe; 1042. Fan-shaped hole; 105. Water collection box; 1051. Funnel pipe; 1052. Notched hole; 1053. Clamping block; 106. Rectifying net;
[0021] 20. Water-stopping component; 201. Pressure cap; 2011. Crank; 2012. Vertical rod; 202. Base; 2021. First through hole; 203. Movable block; 2031. Second through hole; 204. Support component. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0025] Example
[0026] Reference Figure 1 As shown, this utility model discloses a water inlet valve for reducing noise, including a T-shaped main body 10, which is horizontally through. One end of the main body 10 is provided with a water inlet 101, and the other end is provided with an inner tube 102 and an outer tube 103. The main body 10 is provided with an installation thread at the water inlet 101. The main body 10 is installed on the inner wall of the water tank through the installation thread, and the external water source enters from the water inlet 101.
[0027] Reference Figure 1-4As shown, the inner tube 102 is connected to the inlet 101, and the outer tube 103 has a vertically downward outlet 1031. Water-stopping components 20 are installed at the ends of the inner tube 102 and the outer tube 103. Specifically, the water-stopping component 20 includes a pressure cap 201, a base 202, a movable block 203, and a support 204. The base 202 is installed at one end of the horizontal part of the main body 10, and the movable block 203 is located between the outlets of the inner tube 102 and the outer tube 103 and the base 202. A support block is placed between the movable block 203 and the main body 10. The base 202 has a first through hole 2021, and the movable block 203 has a second through hole 2031. The pressure cover 201 is hinged to the base 202 on both sides. A crank 2011 extends from one side of the pressure cover 201 at both sides of the hinge point. The crank 2011 is perpendicular to the pressure cover 201. The float 104 is provided with a vertical rod 2012. One end of the crank 2011 is hinged to the top of the vertical rod 2012. The cross section of the second through hole 2031... The area is smaller than the first through hole 2021. When the float 104 rises, the crank 2011 pushes the pressure cap 201 to cover the first through hole 2021. Water flows from the inner tube 102 through the second through hole 2031 to the space between the movable block 203 and the base 202. The water pressure between them pushes the movable block 203 to press against the opening of the inner tube 102, preventing water from flowing from the opening of the inner tube 102 into the outer tube 103. When the float 104 descends, the crank 2011 pushes the pressure cap 201. When the first through hole 2021 is opened, the water between the movable block 203 and the base 202 flows out through the first through hole 2021, reducing the pressure. The water in the inner tube 102 will push the movable block 203 to move towards the pressure cap 201. The water flows from the gap between the movable block 203 and the inner tube 102 to the outer tube 103. That is, the connection and closure of the inner tube 102 and the outer tube 103 are achieved by whether the pressure cap 201 covers the first through hole 2021, thus realizing the functions of water inlet and water stop.
[0028] Furthermore, the vertical rod 2012 is threaded, and the float 104 has a threaded hole. The vertical rod 2012 is installed in the threaded hole through the thread. The position of the float 104 on the vertical rod 2012 can be adjusted through the threaded connection so as to adjust different water intake volumes.
[0029] Reference Figure 4-6As shown, a float 104 is slidably fitted onto the vertical part of the main body 10. The float 104 is connected to the water-stopping component 20 and is located below the water outlet 1031. A groove is formed on the upper surface of the float 104, and a vertical pipe 1041 is installed in the groove. A water collection box 105 is installed at the bottom of the vertical part of the main body 10. The water collection box 105 has a drain outlet, and a funnel tube 1051 is provided at the drain outlet. Several notches 1052 are formed between the funnel tube 1051 and the drain outlet. Specifically, several locking blocks 1053 are provided on the outer wall of the upper end of the funnel tube 1051. A locking hole is formed at the bottom of the vertical part of the main body 10. By locking the locking blocks 1053 through the locking hole, the water collection box 105 is installed at the bottom of the vertical part of the main body 10. The vertical part is close to the bottom of the water tank, which reduces the height difference between the water collection box 105 and the bottom of the water tank and reduces noise. Water flowing out of outlet 1031 first falls into the groove of float 104, and then flows down to water collection box 105 through vertical pipe 1041. Water in water collection box 105 flows to water tank through funnel pipe 1051 and notch 1052. The water flows down through layers to reduce noise. Compared with the existing method of falling directly to the bottom of water tank with a large drop, the noise generated is smaller.
[0030] Furthermore, four symmetrical fan-shaped holes 1042 are provided on the upper side of the vertical pipe 1041. By dividing the vertical pipe 1041, the upper opening of the vertical pipe 1041 is in the shape of fan-shaped holes 1042. Water flows from the fan-shaped holes 1042 into the vertical pipe 1041 and into the water collection tank, reducing a large amount of water flow directly and further reducing noise.
[0031] Reference Figure 5 As shown, a rectifier mesh 106 is further installed at the outlet 1031. The rectifier mesh 106 reduces the turbulence in the airflow or waterflow, thereby improving the uniformity and stability of the flow and reducing noise generated by water flow fluctuations.
[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A water inlet valve for reducing noise, characterized in that; The device includes a T-shaped main body that is horizontally continuous. One end of the main body has a water inlet, and the other end has an inner tube and an outer tube. The main body has a threaded installation at the water inlet. The inner tube is connected to the water inlet, and the outer tube has a vertically downward water outlet. Water-stopping components are installed at the ends of the inner and outer tubes. A float is slidably fitted onto the vertical part of the main body. The float is connected to the water-stopping components and is located below the water outlet. The upper surface of the float has a groove with a vertical pipe. A water collection box is installed at the bottom of the vertical part of the main body. The water collection box has a drain outlet with a funnel-shaped pipe. Several notches are formed between the funnel-shaped pipe and the drain outlet.
2. The noise-reducing water inlet valve according to claim 1, characterized in that: The water-stopping assembly includes a pressure cap, a base, a movable block, and a support. The base is installed at one end of the horizontal part of the main body. The movable block is located between the inner tube, the outer tube opening, and the base. The base has a first through hole, and the movable block has a second through hole. The pressure cap is hinged to the base on both sides. A crank extends from one side of the pressure cap on both sides of the hinge point. The crank is perpendicular to the pressure cap. The float is provided with a vertical rod, and one end of the crank is hinged to the top of the vertical rod.
3. The noise-reducing water inlet valve according to claim 1, characterized in that: Several locking blocks are provided on the outer wall of the upper end of the funnel tube, and locking holes are opened at the bottom of the vertical part of the main body.
4. The noise-reducing water inlet valve according to claim 1, characterized in that: Four symmetrical fan-shaped holes are provided on the upper side of the vertical pipe.
5. The noise-reducing water inlet valve according to claim 1, characterized in that: A rectifier screen is further installed at the outlet.
6. The noise-reducing water inlet valve according to claim 2, characterized in that: The vertical rod is threaded, the float has a threaded hole, and the vertical rod is installed in the threaded hole via the thread.