Water inlet valve with shortened lever

By using a shortened lever design and the cooperation of the crank and the gland, the problem of increased size caused by the increased lever length in existing water inlet valves is solved, achieving a large sealing force and adaptable installation.

CN223838215UActive Publication Date: 2026-01-27XIAMEN UNITOP PLUMBING TECH CO LTD
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Patent Information

Application Number
CN202520151270.6
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

Technical Problem

To achieve a high sealing force, existing inlet valves require increased lever length, resulting in a larger size that makes them incompatible with many modern toilets.

Method used

It adopts a shortened lever design. Through the cooperation of the crank and the pressure cap, the float drives the crank to swing, realizing the functions of water intake and water stop. The crank replaces the lever to obtain a greater sealing force.

Benefits of technology

It achieves a high sealing force without increasing volume, has a simple and reasonable structure, and can adapt to the installation needs of various toilets.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a water inlet valve with a shortened lever, which comprises a T-shaped main body, the main body is horizontally through, one end of the main body is provided with a water inlet, the other end of the main body is provided with an inner-layer pipe and an outer-layer pipe, the inner-layer pipe is communicated with the water inlet, and the outer-layer pipe is provided with a water outlet; the water stop assembly comprises a gland, a base and a movable block, the base is provided with a first through hole, the movable block is provided with a second through hole, the two sides of the gland are hinged to the base, one side of the gland extends out of cranks on the two sides of a hinge point, the cranks are perpendicular to the gland, and the movable block is provided with a second through hole. One end of the crank is hinged to the top end of the vertical rod. According to the water inlet valve, the vertical rod is adopted to drive the crank to be connected with the gland to swing around the position hinged to the base, so that the gland is driven to cover or open the first through hole, water inlet and water stop of the water inlet valve are achieved, the crank is short, the first through hole is pressed through the gland, and a larger sealing force value is obtained.
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Description

Technical Field

[0001] This utility model relates to the technical field of toilet tank inlet valves, and more specifically, to an inlet valve with a shortened lever. Background Technology

[0002] Existing inlet valves, such as those used in toilets, require a longer lever lift time to achieve a larger lever ratio and thus a greater sealing force in order to prevent leakage under high pressure. However, this results in a larger valve size due to the longer lift rod, making it incompatible with many modern toilets. Therefore, there is an urgent need for an inlet valve with a short lever and a high sealing force. Utility Model Content

[0003] This invention provides a shortened lever inlet valve, which aims to improve the technical problem of existing inlet valves that increase the lever length to obtain a large sealing value, resulting in a larger overall size of the inlet valve.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a shortened lever-type 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 inner tube being connected to the water inlet, and the outer tube having an outlet; a water-stopping assembly is provided at the port positions of the inner tube and the outer tube; a float is slidably fitted on the vertical part of the main body; the water-stopping assembly includes a pressure cap, a base, and a movable block; 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 outlet of the outer tube, and the base; the base has a first through hole; 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; one end of the crank is hinged to the top of the vertical rod.

[0005] Furthermore, a guide post is provided on the side of the base near the movable block. The guide post has a guide groove and can slide through the movable block. The guide groove and the movable block form the second through hole.

[0006] Furthermore, the inner tube is further fitted with a support member.

[0007] Furthermore, the main body is provided with a support rod on one side of the crank, and the support rod is located below the crank.

[0008] Furthermore, a rectifier screen is installed at the outlet.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This utility model discloses a shortened lever 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 inner tube is connected to the water inlet, and the outer tube has a water outlet. Water-stopping 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. The water-stopping components include a pressure cap, a base, and a movable block. The movable block is located between the ends of the inner and outer tubes 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. In this invention, a vertical rod drives a crank connected to a pressure cap to swing around the position hinged to the base, thereby causing the pressure cap to cover or open the first through hole, realizing the water inlet valve's water inlet and water stop. The crank replaces the lever, and the crank is shorter and presses the first through hole by the pressure cap to obtain a greater sealing force. Attached Figure Description

[0011] 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.

[0012] Figure 1 This is a schematic diagram of the overall structure of a shortened lever-type water inlet valve according to this utility model;

[0013] Figure 2 This is an exploded view of the water-stopping mechanism of a shortened lever-type water inlet valve according to this utility model.

[0014] Figure 3 This is a cross-sectional view of the water-stopping mechanism and main body of a shortened lever water inlet valve according to this utility model.

[0015] Figure 4 This is a schematic diagram of one end of the main body of a shortened lever water inlet valve according to this utility model.

[0016] Explanation of main component symbols

[0017] 10. Main body; 101. Inlet; 102. Inner pipe; 103. Outer pipe; 1031. Outlet;

[0018] 104. Float; 105. Support rod;

[0019] 20. Water-stopping component; 201. Gland; 2011. Crank; 2012. Vertical rod; 202. Base;

[0020] 2021, Guide post; 2022, First through hole; 203, Movable block; 2031, Second through hole; 204, Support component. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] 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.

[0024] Example

[0025] Reference Figure 1-4As shown, this utility model discloses a shortened lever water inlet valve, including a T-shaped main body 10, which is horizontally continuous. 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. A water-stopping component 20 is provided at the port of the inner tube 102 and the outer tube 103. The inner tube 102 is connected to the water inlet 101, and the outer tube 103 has a water outlet 1031. Specifically, when water is introduced, water flows from the water inlet 101 to the inner tube 102, passes through the water-stopping component 20 to the outer tube 103, and finally enters the water tank from the water outlet 1031. When water is stopped, the water-stopping component 20 blocks the inner tube 102 and the outer tube 103, thereby preventing water from entering. Furthermore, a rectifier screen is installed at the outlet 1031. The rectifier screen is a stainless steel filter screen, which can better control turbulence and stabilize the flow. At the same time, it can disperse the water flow in all directions, making the water flow from the outlet 1031 uniform in all directions and reducing water flow noise.

[0026] Reference Figure 1-4 As shown, a float 104 is slidably mounted on the vertical part of the main body 10. The float 104 rises and falls with the water level. The water-stopping component 20 includes a pressure cap 201, a base 202, and a movable block 203. The movable block 203 is located between the inner tube 102, the outer tube 103, and the base 202. The base 202 has a first through hole 2022, and the movable block 203 has a second through hole 2031. Specifically, a guide post 2021 is provided on the side of the base 202 near the movable block 203. The guide post 2021 has a guide groove and can slidably pass through the movable block 203. The guide groove and the movable block 203 form the second through hole 2031. The cross-sectional area of ​​the second through hole 2031 is smaller than that of the first through hole 2022. When the pressure cap 201 covers the first through hole 2022, 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 into the outer tube 103. When the pressure cap 201 opens the first through hole 2022, the water between the movable block 203 and the base 202 flows out through the first through hole 2022, reducing the pressure. The water in the inner tube 102 pushes the movable block 203 toward the pressure cap 201, and the water flows from the gap between the movable block 203 and the inner tube 102 to the outer tube 103. In other words, 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 2022, thus realizing the functions of water inlet and water stop. Furthermore, the inner tube 102 is further fitted with a support member 204, which is in the shape of a ring and provides support for the movable block 203 around its perimeter.

[0027] Reference Figure 1-4As shown, the pressure cap 201 is hinged to the base 202 on both sides. A crank 2011 extends from one side of the pressure cap 201 on both sides of the hinge point. The crank 2011 is perpendicular to the pressure cap 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. Specifically, when water enters the tank, the float 104 descends, causing one end of the crank 2011 to move downwards. The crank 2011 rotates, causing the pressure cap 201 to open the first through hole 2022. Water between the movable block 203 and the base 202 flows out through the first through hole 2022. The water pushes the movable block 203 towards the pressure cap 201. Water flows from the inner tube 102 to the outer tube 103 and out through the outlet 1031 into the water tank. When the float 104 rises, causing one end of the crank 2011 to move upwards, the crank 2011 rotates, causing the pressure cap 201 to block the first through hole 2022. The water between the movable block 203 and the base 202 pushes the movable block 203 to press against the opening of the outer tube 103, preventing water from entering the outer tube 103 from the inner tube 102, thus achieving the effect of stopping water flow.

[0028] In addition, the main body 10 is provided with a support rod 105 on one side of the crank 2011. The support rod 105 is located below the crank 2011 and serves to support the crank 2011. This prevents the weight of the float 104 from being supported solely by the pressure cap 201 when the water level drops, thus avoiding damage to the pressure cap 201 due to stress.

[0029] 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 shortened lever-type water inlet valve, 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 inner tube is connected to the water inlet, and the outer tube has an outlet. Water-stopping components are installed at the ends of the inner and outer tubes. A float is slidably fitted onto the vertical portion of the main body. The water-stopping components include a pressure cap, a base, and a movable block. The base is installed at one end of the horizontal portion of the main body, and 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, and a crank extends from one side of the pressure cap at both sides of the hinge point. The crank is perpendicular to the pressure cap. The float has a vertical rod, and one end of the crank is hinged to the top of the vertical rod.

2. The water inlet valve of the shortened lever according to claim 1, characterized in that: A guide post is provided on the side of the base near the movable block. The guide post has a guide groove and can slide through the movable block. The guide groove and the movable block form the second through hole.

3. The water inlet valve of the shortened lever according to claim 1, characterized in that: The inner tube is further fitted with a support member.

4. The water inlet valve of the shortened lever according to claim 1, characterized in that: The main body has a support rod on one side of the crank, and the support rod is located below the crank.

5. The water inlet valve of the shortened lever according to claim 1, characterized in that: A rectifier screen is further installed at the outlet.