A toilet inlet valve
By linking the float, adjusting screw, air pressure rod and valve core, and combining the design of filter screen, sealing cover, waterproof gasket and snap-fit block, the problems of inaccurate water level control, inconvenient installation and maintenance and poor connection reliability of existing toilet inlet valves are solved. It achieves accurate water level control, simplified installation, extended service life and improved adaptability to different water qualities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI KANGYI SANITARY WARE TECHNOLOGY CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-26
AI Technical Summary
Existing toilet inlet valves have low water level control accuracy, are prone to overflow or insufficient water replenishment, are inconvenient to install and maintain, have poor connection reliability, are prone to loosening and leakage, and have weak adaptability to water quality, lacking effective filtration and protection structures, which affects service life and stability.
It adopts a linkage structure of float cup, adjusting screw, air pressure lever and valve core, combined with filter screen, sealing cover, waterproof gasket and snap block design to achieve precise water level control, simplify installation, enhance sealing and connection stability, filter impurities and prevent water leakage.
It achieves precise water level control, improves toilet flushing effect and water-saving performance, simplifies installation and maintenance, extends service life, improves adaptability to different water qualities and structural stability, prevents loosening, and enhances flushing effect and energy-saving stability.
Smart Images

Figure CN224412710U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of toilet inlet valve technology, specifically to a toilet inlet valve. Background Technology
[0002] Every household needs a bathroom, and the toilet is an essential household item. The toilet inlet valve is a device that controls the automatic water intake of the toilet tank. When the water level in the tank is lower than a certain level, water flows into the tank through the inlet valve until the water level in the tank rises to a certain level, at which point the inlet valve stops the water flow.
[0003] In existing technologies, the toilet inlet valve is the core component of the toilet tank, responsible for replenishing the tank and controlling the water level. Existing toilet inlet valves have several shortcomings: low water level control accuracy, prone to overflow or insufficient water replenishment, affecting flushing performance; inconvenient installation and maintenance, poor reliability of component connections, and prone to loosening and leakage after long-term use; weak adaptability to water quality, with impurities easily clogging the valve core and affecting function; and a lack of effective filtration and protection structures, reducing the valve's lifespan and stability. Therefore, this device provides a new toilet inlet valve. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing a toilet inlet valve to solve the aforementioned technical problems.
[0005] The present invention adopts the following technical solution: a toilet inlet valve, including an inlet valve body; a connecting sleeve is slidably provided on the outer side of the inlet valve body, a float cup is fixedly installed on one side of the connecting sleeve, and an adjusting screw is provided on the inner side of the float cup;
[0006] A water channel divider is fixedly installed on the top of the main body of the water inlet valve. A pneumatic lever is installed above the water channel divider and is connected to an adjusting screw.
[0007] A sealing cover is fixedly installed on one side of the water channel divider, and a water inlet head is provided on the inner side of the sealing cover.
[0008] As a further improvement to the above solution, a valve core is provided on the inner side of the sealing cover, and a filter screen is provided above the valve core.
[0009] As a further improvement to the above solution, a connector is fixedly installed on one side of the sealing cover, a nut is provided on the outside of the connector, and a waterproof gasket is provided on the outside of the nut and the sealing cover.
[0010] As a further improvement to the above solution, multiple snap-fit blocks are fixedly installed on the outer side of the main body of the water inlet valve. The snap-fit blocks are connected to the connecting sleeve, and locking blocks are provided on the connecting sleeve and the float cup.
[0011] As a further improvement to the above solution, the connector and nut are used to connect the water inlet valve to the external water supply pipeline and to fix the water tank, and the waterproof gasket enhances the sealing of the connection.
[0012] As a further improvement to the above solution, the adjusting screw connects the float cup and the air pressure lever, and its length can be rotated to adjust the water level of the water tank.
[0013] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:
[0014] 1. Through the coordinated operation of the float cup, adjusting screw, pneumatic lever and valve core, the water level in the tank can be accurately sensed and controlled to avoid overflow or insufficient water replenishment, ensuring the flushing effect and water-saving performance of the toilet, and meeting the water level adjustment needs of different users. Convenient installation and maintenance: The threaded connection of the connector and nut, as well as the quick-connect structure of the snap-fit block and locking block, make the inlet valve simple and efficient to install. During later maintenance, such as replacing the valve core, filter screen and other parts, it can be quickly disassembled and assembled, reducing maintenance difficulty and time cost.
[0015] 2. The filter screen effectively filters impurities and protects key components such as the valve core; the waterproof gasket and sealing cap enhance the seal, preventing water leakage and impurity intrusion, improving the adaptability of the inlet valve to different water qualities and usage environments, and extending its service life; all components are firmly connected through structures such as connecting sleeves, snap-fit blocks, and locking blocks, and the water channel diverter optimizes the water flow distribution, ensuring the structural stability and reliable performance of the inlet valve during long-term use, reducing the occurrence of failures, and improving the overall operational stability of the toilet tank. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a partial three-dimensional structural diagram of the adjusting screw and locking block in this utility model;
[0019] Figure 3 This is a partial three-dimensional structural diagram of the pneumatic lever and water inlet head in this utility model.
[0020] Figure 4 This is a partial structural diagram of the valve core and filter screen in this utility model.
[0021] Figure Labels
[0022] 1. Inlet valve body; 2. Float cup; 3. Adjusting screw; 4. Pneumatic lever; 5. Connector; 6. Nut; 7. Valve core; 8. Filter screen; 9. Waterproof gasket; 10. Inlet head; 11. Sealing cap; 12. Water channel divider; 13. Connecting sleeve; 14. Snap-fit block; 15. Locking block. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] The following is in conjunction with the appendix Figure 1-4 This document provides a detailed description of the technical solutions provided in each embodiment of the present invention.
[0025] This utility model embodiment provides a toilet inlet valve, including an inlet valve body 1; a connecting sleeve 13 is slidably provided on the outer side of the inlet valve body 1, a float cup 2 is fixedly installed on one side of the connecting sleeve 13, and an adjusting screw 3 is provided on the inner side of the float cup 2;
[0026] A water channel divider 12 is fixedly installed on the top of the water inlet valve body 1. A pneumatic lever 4 is installed above the water channel divider 12 and is connected to the adjusting screw 3.
[0027] A sealing cover 11 is fixedly installed on one side of the water channel divider 12, and an inlet head 10 is provided on the inner side of the sealing cover 11.
[0028] Furthermore, the main body 1 of the inlet valve serves as the basic load-bearing structure of the inlet valve, with an internal water flow channel providing spatial support for the operation of the entire inlet valve. Other components are installed and coordinated around it to ensure the orderly transmission and control of water flow. The float cup 2 is made of lightweight, water-resistant material and floats on the water surface of the tank. It moves up and down with the rise and fall of the water level in the tank. Through linkage with the adjusting screw 3 and the air pressure lever 4, it senses changes in water level and feeds back to the valve core 7, realizing automatic control of water intake. It is a key component for water level detection and control. The adjusting screw 3 connects the float cup 2 and the air pressure lever 4. By rotating, it can adjust its own length, thereby adjusting the initial height of the float cup 2, thus setting the full water level of the tank. Users can precisely adjust the water level according to the flushing needs of the toilet to achieve a balance between water saving and flushing effect.
[0029] In this embodiment, a valve core 7 is provided on the inner side of the sealing cover 11, and a filter screen 8 is provided above the valve core 7.
[0030] In this embodiment, a connector 5 is fixedly installed on one side of the sealing cover 11, a nut 6 is provided on the outside of the connector 5, and a waterproof gasket 9 is provided on the outside of the nut 6 and the sealing cover 11.
[0031] In this embodiment, multiple snap-fit blocks 14 are fixedly installed on the outer side of the water inlet valve body 1. The snap-fit blocks 14 are connected to the connecting sleeve 13. The connecting sleeve 13 and the float cup 2 are provided with locking blocks 15.
[0032] Furthermore, the connecting sleeve 13 is used to connect with the float cup 2. Through snap-fit and sleeve connection, the stability of the connection between the components is enhanced, ensuring the reliability of force transmission and structural fit, and preventing the components from loosening and affecting the function of the inlet valve. The snap-fit block 14 cooperates with the locking block 15 to realize the quick snap-fit fixation of the connecting sleeve 13. During installation, the snap-fit block 14 and the locking block 15 are engaged with each other, which facilitates the quick assembly of components and subsequent maintenance and replacement, and improves the efficiency of installation and maintenance.
[0033] In this embodiment, the connector 5 and the nut 6 are used to connect the water inlet valve to the external water supply pipeline and to fix the water tank. The waterproof gasket 9 enhances the sealing of the connection.
[0034] Furthermore, the sealing cap 11 covers part of the opening or connection of the inlet valve body 1, which plays a sealing role, preventing water and impurities from entering the non-water flow channels inside the inlet valve, protecting the internal structure, maintaining stable air pressure inside the inlet valve, and ensuring the normal operation of components such as the air pressure lever 4; the water channel divider 12 is set in the water flow channel of the inlet valve body 1, which can reasonably divide the incoming water flow, optimize the distribution of water flow in the inlet valve, and make the water flow act more evenly and stably on components such as the valve core 7, thereby improving the working stability and water flow control accuracy of the inlet valve.
[0035] In this embodiment, the adjusting screw 3 connects the float cup 2 and the air pressure lever 4, and its length can be rotated to adjust the water level of the water tank.
[0036] Furthermore, the pneumatic lever 4 is based on the lever principle. One end is connected to the float cup 2 through the adjusting screw 3, and the other end acts on the valve core 7. When the float cup 2 moves with the water level, it drives the pneumatic lever 4 to rotate. The air pressure difference is used to control the opening and closing of the valve core 7, so as to achieve precise regulation of water intake. It is the core component for force transmission and control.
[0037] Specifically, the main body 1 of the inlet valve serves as the basic load-bearing structure, with an internal water flow channel providing spatial support for the operation of the entire inlet valve. Other components are installed and coordinated around it to ensure the orderly transmission and control of water flow. The float cup 2 is made of lightweight, water-resistant material and floats on the water surface of the tank. It moves up and down with the water level in the tank and senses changes in water level by linking with the adjusting screw 3 and the air lever 4, feeding back to the valve core 7 to achieve automatic control of water intake. It is a key component for water level detection and control. The adjusting screw 3 connects the float cup 2 and the air lever 4. Its length can be adjusted by rotation, thereby adjusting the initial height of the float cup 2 to set the full water level of the tank. Users can precisely adjust the water level according to the flushing needs of the toilet to achieve a balance between water saving and flushing effect.
[0038] The pneumatic lever 4, based on the lever principle, is connected at one end to the float cup 2 via the adjusting screw 3, and at the other end acts on the valve core 7. When the float cup 2 moves with the water level, it drives the pneumatic lever 4 to rotate, using the air pressure difference to control the opening and closing of the valve core 7, achieving precise regulation of water intake. It is the core component for force transmission and control. The connector 5 is used to connect the inlet valve to the external water supply pipeline. Its external thread design can be matched with the nut 6 to quickly complete the water circuit connection of the inlet valve, ensuring the sealing and stability of the connection and ensuring a stable water input. 6 is used in conjunction with connector 5. By tightening the threads, the inlet valve is secured to the installation position of the toilet tank. At the same time, it compresses the waterproof gasket 9 to enhance the sealing of the connection and prevent water leakage. It is an important component for installation, fixing and sealing. The valve core 7 is installed in a key position of the water flow channel inside the main body 1 of the inlet valve and is controlled by the air pressure lever 4. When water needs to be added, the valve core 7 opens and water flows into the tank. After the water level reaches the standard, the valve core 7 closes to cut off the water flow. It accurately controls the water inlet and outlet of the tank and is the core control component for water circuit opening and closing.
[0039] The filter screen 8 is located at the inlet head 10 and uses a fine filter structure to effectively filter impurities in the water, such as sediment and rust, preventing them from entering the inlet valve and clogging components such as the valve core 7. This ensures the long-term stable operation of the inlet valve and improves its adaptability to different water qualities. The waterproof gasket 9 is installed between the nut 6 and the water tank mounting surface, as well as other possible leaking connection points of the inlet valve. Its elastic deformation fills gaps, enhances sealing performance, and prevents leakage of water from the water tank or external water sources, ensuring the airtight connection between the inlet valve and the water tank. The inlet head 10 is the initial channel for water to enter the inlet valve and is connected to the connector 5. It integrates the filter screen 8 to filter the incoming water. The water flow undergoes preliminary filtration and guides the water flow into the inlet valve body 1, ensuring a smooth entry of water. The sealing cover 11 covers part of the opening or connection of the inlet valve body 1, serving as a seal to prevent moisture and impurities from entering the non-water flow channels inside the inlet valve, protecting the internal structure, maintaining stable air pressure inside the inlet valve, and ensuring the normal operation of components such as the air pressure lever 4. The water channel divider 12 is set in the water flow channel of the inlet valve body 1, which can reasonably divide the incoming water flow, optimize the distribution of water flow in the inlet valve, and make the water flow act more evenly and stably on components such as the valve core 7, thereby improving the working stability and water flow control accuracy of the inlet valve.
[0040] The connecting sleeve 13 is used to connect with the float cup 2. Through snap-fit and sleeve-fitting methods, it enhances the stability of the connection between the components, ensures the reliability of force transmission and structural fit, and prevents the components from loosening and affecting the function of the inlet valve. The snap-fit block 14 cooperates with the locking block 15 to realize the quick snap-fit fixation of the connecting sleeve 13. During installation, the snap-fit block 14 and the locking block 15 engage with each other, which facilitates the quick assembly of components and subsequent maintenance and replacement, and improves the efficiency of installation and maintenance. The locking block 15 and the snap-fit block 14 work together to firmly lock the snap-fit block 14 through elastic deformation or mechanical locking structure. It can adjust and lock the position of the connecting sleeve 13, ensure the connection stability of the snap-fit components, prevent the components from falling off due to vibration, water flow impact, etc. during use, and ensure the reliability of the overall structure of the inlet valve.
[0041] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A toilet inlet valve, characterized in that: Including the main body of the inlet valve (1); A connecting sleeve (13) is slidably provided on the outer side of the main body (1) of the water inlet valve. A float cup (2) is fixedly installed on one side of the connecting sleeve (13). An adjusting screw (3) is provided on the inner side of the float cup (2). A water channel divider (12) is fixedly installed on the top of the main body (1) of the water inlet valve. A pneumatic lever (4) is provided above the water channel divider (12). The pneumatic lever (4) is connected to the adjusting screw (3). A sealing cover (11) is fixedly installed on one side of the water channel divider (12), and an inlet head (10) is provided on the inner side of the sealing cover (11).
2. A toilet inlet valve as described in claim 1, characterized in that: A valve core (7) is provided on the inner side of the sealing cover (11), and a filter screen (8) is provided above the valve core (7).
3. A toilet inlet valve as described in claim 1, characterized in that: A connector (5) is fixedly installed on one side of the sealing cover (11), and a nut (6) is provided on the outside of the connector (5). A waterproof gasket (9) is provided on the outside of the nut (6) and the sealing cover (11).
4. A toilet inlet valve as described in claim 1, characterized in that: Multiple snap-fit blocks (14) are fixedly installed on the outside of the main body (1) of the water inlet valve. The snap-fit blocks (14) are connected to the connecting sleeve (13). The connecting sleeve (13) and the float cup (2) are provided with locking blocks (15).
5. A toilet inlet valve as described in claim 3, characterized in that: The connector (5) is used in conjunction with the nut (6) for connecting the water inlet valve to the external water supply pipeline and for fixing the water tank. The waterproof gasket (9) enhances the sealing of the connection.
6. A toilet inlet valve as described in claim 1, characterized in that: The adjusting screw (3) connects the float (2) and the air lever (4), and its length can be rotated to adjust the water level of the tank.