Integrated top filtering water inlet valve
The design of the integrated top filter inlet valve solves the problems of complex molds and low assembly efficiency of existing top filter inlet valves, realizes the integration of water inlet and outlet of the valve body and anti-siphon effect, and reduces production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 王录民
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-21
AI Technical Summary
The existing top filter inlet valve has a two-layer structure. The outer surface of the inner core is designed with threads, and the outer sleeve needs to be connected to the inner core by a rotating disk. This results in complex mold design, high processing difficulty, low assembly efficiency, and high labor costs.
It adopts an integrated top filter inlet valve. The valve body has an integrally formed connecting groove on the top, which is fixedly connected to the inlet pipe and the connecting groove is fixedly connected to the outlet pipe. The inner and outer floats drive the swing arm to rotate, which drives the pressure cap to seal the outlet of the central pipe to prevent siphoning. It is designed with anti-siphon cover and anti-siphon pad.
The valve body features an integrated inlet and outlet design, which reduces processing difficulty and assembly efficiency, lowers production costs, prevents siphoning, and improves assembly efficiency.
Smart Images

Figure CN224148835U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of toilet inlet valves, specifically an integrated top filter inlet valve. Background Technology
[0002] The toilet inlet valve is a crucial component connecting the toilet tank and the toilet bowl, its main function being to control the flow of water in and out. Its main structure includes a valve body, valve core, spring, float or float valve, and connecting pipes. When the water level in the toilet tank drops to a certain level, the float also drops. At this time, the valve core moves upward under the action of the spring, opening the inlet passage and allowing water to flow into the tank. As the water level rises, the float gradually rises. When the water level reaches the set height, the float exerts sufficient pressure on the valve core, causing it to move downward, closing the inlet passage and stopping the water flow.
[0003] Utility model patent CN213114854U discloses a toilet inlet valve, including a buoyancy control mechanism, an inlet channel, an outlet channel, a connecting chamber connecting the outlet channel and the inlet channel, and a water-stopping chamber for controlling the connection chamber. The connecting chamber has a water-stopping pad for controlling the opening and closing of the connecting chamber. The water-stopping chamber is located on the side of the connecting chamber, and its side wall has an air pressure channel connecting to the outside. The buoyancy control mechanism is movably connected to the outer wall of the water-stopping chamber to control the opening and closing of the air pressure channel. This utility model places the water-stopping chamber on the side, and the buoyancy control mechanism controls the air pressure inside the water-stopping chamber from the side. Under the same water level conditions, compared to a toilet inlet valve with the water-stopping chamber located at the top, this utility model's toilet inlet valve has a smaller portion exposed above the water surface, which can reduce the height of the water tank.
[0004] However, the main body of this top filter water inlet valve has a two-layer structure, with an inner core and an outer sleeve. The outer surface of the inner core also needs to be designed with threads, and the outer sleeve and inner core need to be connected by a rotating disk. This makes the inner core mold design complex, the processing difficult, the assembly efficiency of the entire water inlet valve low, and the labor cost high. Therefore, an integrated top filter water inlet valve is proposed to solve the problems mentioned above. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an integrated top filter inlet valve, which features an integrated inlet and outlet structure, reducing production costs and other advantages. It solves the problems of common top filter inlet valves, where the inlet body has a two-layer structure with an inner core and an outer sleeve. The outer surface of the inner core also needs to be designed with threads, and the outer sleeve and inner core need to be connected by a rotating disk, resulting in complex inner core mold design, high processing difficulty, low assembly efficiency of the entire inlet valve, and high labor costs.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An integrated top filter inlet valve includes a valve body, a filter tube fixedly installed at the input end of the valve body, an inlet pipe fixedly installed at the bottom end of the filter tube, and an integrated component on the top of the valve body.
[0008] The integrated component is integrally formed in the connecting groove on the top of the valve body. A connecting pipe is fixedly installed inside the connecting groove and is connected to the valve body. A water outlet pipe is fixedly installed at the bottom of the connecting groove and is located outside the valve body. A central pipe connected to the output end of the filter pipe is fixedly installed inside the valve body.
[0009] Furthermore, an outer float is slidably installed on the surface of the water inlet pipe, and an inner float is slidably installed inside the outer float.
[0010] Furthermore, a pull rod is installed on the top of the inner float via a snap fastener, and a retaining ring is provided on the top of the pull rod, with a swing arm sleeved on the retaining ring.
[0011] Furthermore, a pressure cap is fixedly installed at one end of the swing arm, and the pressure cap is hinged to one end of the valve body.
[0012] Furthermore, a water-stop pad is fixedly installed on one side of the gland, and the water-stop pad is compatible with the central tube.
[0013] Furthermore, an external threaded pipe is fixedly installed at the bottom end of the water inlet pipe, and an installation nut is installed on the surface thread of the external threaded pipe.
[0014] Furthermore, a trapezoidal rubber pad is fitted onto the surface of the externally threaded pipe, and the mounting nut is located below the trapezoidal rubber pad.
[0015] Furthermore, a filter element is threadedly installed at the top of the filter tube, and an installation cap is threadedly installed at the top of the filter element. An anti-siphon cap is snapped into the top of the connecting groove, and an anti-siphon pad is inserted through the top of the anti-siphon cap. The anti-siphon pad is adapted to the connecting tube.
[0016] Compared with the prior art, this utility model provides an integrated top filter inlet valve, which has the following advantages:
[0017] 1. This integrated top filter inlet valve features a connecting groove integrally formed on the top of the valve body. The valve body and the inlet pipe are fixedly connected, and the connecting groove is fixedly connected to the outlet pipe. This integrated design of the inlet and outlet of the valve body solves the problems of common top filter inlet valves, where the inlet body has a two-layer structure with an inner core and an outer sleeve. The outer surface of the inner core also needs to be designed with threads, and the outer sleeve and the inner core need to be connected by a rotating disc. This results in a complex inner core mold design, high processing difficulty, low assembly efficiency of the entire inlet valve, and high labor costs.
[0018] 2. This integrated top filter inlet valve connects the connecting pipe and the outlet pipe through a connecting groove. An anti-siphon cover and anti-siphon pad are installed on the top of the connecting groove to prevent siphoning when the water supply is interrupted. A pull rod is installed on the top of the inner float, and a swing arm is installed on the top of the pull rod. When the water in the tank increases, the outer float and the inner float float rise, driving the swing arm to move and causing the pressure cap to block the outlet of the central pipe, cutting off the water supply path. Attached Figure Description
[0019] Figure 1 This is a three-dimensional front view of the structure of this utility model;
[0020] Figure 2 This is a three-dimensional view of the back of the structure of this utility model;
[0021] Figure 3 This is a three-dimensional drawing of the inlet pipe and outlet pipe of this utility model;
[0022] Figure 4 This is a side view of the valve body of this utility model.
[0023] In the diagram: 1. Inlet pipe; 101. Threaded mounting pipe; 2. Filter pipe; 3. Valve body; 31. Central pipe; 4. Connecting groove; 5. Connecting pipe; 6. Outlet pipe; 7. Outer float; 8. Inner float; 9. Pull rod; 10. Swing arm; 11. Pressure cap; 12. Mounting nut; 13. Trapezoidal rubber pad; 14. Filter element; 15. Mounting cover; 16. Anti-siphon cover; 17. Anti-siphon pad. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1 to 4 The integrated top filter water inlet valve in this embodiment includes a valve body 3, a filter pipe 2 is fixedly installed at the input end of the valve body 3, a water inlet pipe 1 is fixedly installed at the bottom end of the filter pipe 2, and an integrated component is provided on the top of the valve body 3.
[0026] The integrated component is integrally formed in the connecting groove 4 at the top of the valve body 3. A connecting pipe 5 is fixedly installed inside the connecting groove 4 and is connected to the valve body 3. A water outlet pipe 6 is fixedly installed at the bottom of the connecting groove 4 and is located outside the valve body 3. A central pipe 31 connected to the output end of the filter pipe 2 is fixedly installed inside the valve body 3. Water flows through the inlet pipe 1 and the filter pipe 2, flows into the valve body 3 through the central pipe 31 inside the valve body 3, then flows into the connecting groove 4 through the connecting pipe 5, and finally is discharged through the water outlet pipe 6.
[0027] Specifically, a connecting groove 4 is provided on the valve body 3, and the valve body 3 is connected to the water outlet pipe 6 through the connecting groove 4, so that the water inlet and water outlet of the valve body 3 are integrated into one structure, reducing the difficulty of processing and assembly, and reducing production costs.
[0028] Please see Figure 1 , Figure 2 and Figure 4 In this embodiment, an outer float 7 is slidably installed on the surface of the water inlet pipe 1, and an inner float 8 is slidably installed inside the outer float 7.
[0029] The inner float 8 has a pull rod 9 attached to its top via a snap fastener. The top of the pull rod 9 has a retaining ring, and a swing arm 10 is fitted onto the retaining ring. The water outlet pipe 6 discharges water into the water tank, causing the outer float 7 and the inner float 8 to rise, which in turn drives the swing arm 10 to rotate.
[0030] Secondly, a pressure cap 11 is fixedly installed at one end of the swing arm 10, and the pressure cap 11 is hinged to one end of the valve body 3. A water-stop pad is fixedly installed on one side of the pressure cap 11, and the water-stop pad is compatible with the central tube 31. When the swing arm 10 rotates, it causes the pressure cap 11 to engage with the opening of the valve body 3, and the water-stop pad blocks the outlet of the central tube 31, stopping the water supply.
[0031] Please see Figure 1 and Figure 2 In this embodiment, an external threaded pipe 101 is fixedly installed at the bottom end of the water inlet pipe 1, and an installation nut 12 is installed on the surface thread of the external threaded pipe 101.
[0032] The surface of the external threaded pipe 101 is fitted with a trapezoidal rubber pad 13, and the mounting nut 12 is located below the trapezoidal rubber pad 13.
[0033] Please see Figure 1 and Figure 3 In this embodiment, a filter element 14 is threaded onto the top of the filter tube 2, and a mounting cap 15 is threaded onto the top of the filter element 14. An anti-siphon cap 16 is snapped onto the top of the connecting groove 4, and an anti-siphon pad 17 is inserted through the top of the anti-siphon cap 16. The anti-siphon pad 17 is adapted to the connecting tube 5. The filter element 14 is installed in the filter tube 2 to filter the water entering the valve body 3. The anti-siphon pad 17 interferes with the water flow to prevent siphoning.
[0034] The working principle of the above embodiment is as follows: water flows through the inlet pipe 1 and the filter pipe 2, flows into the valve body 3 through the central pipe 31 inside the valve body 3, then flows into the connecting groove 4 through the connecting pipe 5, and then is discharged into the water tank through the outlet pipe 6. The outer float 7 and the inner float 8 rise, driving the swing arm 10 to rotate, driving the pressure cap 11 to engage with the opening of the valve body 3, and the water stop pad blocks the outlet of the central pipe 31, stopping the water supply.
[0035] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that can achieve its beneficial effects can be implemented.
[0036] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An integrated top filter water inlet valve comprising a valve body (3) characterized in that: A filter tube (2) is fixedly installed at the input end of the valve body (3), and a water inlet pipe (1) is fixedly installed at the bottom end of the filter tube (2). An integrated component is provided on the top of the valve body (3). The integrated component is integrally formed in the connecting groove (4) on the top of the valve body (3). A connecting pipe (5) is fixedly installed inside the connecting groove (4). The connecting pipe (5) is connected to the valve body (3). A water outlet pipe (6) is fixedly installed at the bottom of the connecting groove (4). The water outlet pipe (6) is located outside the valve body (3). A central pipe (31) connected to the output end of the filter pipe (2) is fixedly installed inside the valve body (3).
2. The integrated top filter inlet valve according to claim 1, characterized in that: An outer float (7) is slidably installed on the surface of the water inlet pipe (1), and an inner float (8) is slidably installed inside the outer float (7).
3. The integrated roof water filter inlet valve according to claim 2, characterized in that: The top of the inner float (8) is fitted with a pull rod (9) by a snap fastener. The top of the pull rod (9) is provided with a retaining ring, and a swing arm (10) is fitted on the retaining ring.
4. The integrated roof water filter inlet valve according to claim 3, wherein: A pressure cap (11) is fixedly installed at one end of the swing arm (10), and the pressure cap (11) is hinged to one end of the valve body (3).
5. The integrated roof water filter inlet valve according to claim 4, characterized in that: A water-stop pad is fixedly installed on one side of the pressure cap (11), and the water-stop pad is adapted to the central tube (31).
6. The integrated roof water filter inlet valve according to claim 1, wherein: The bottom end of the water inlet pipe (1) is fixedly installed with an external threaded pipe (101), and the surface of the external threaded pipe (101) is threaded with an installation nut (12).
7. The integrated roof water filter inlet valve according to claim 6, characterized in that: The surface of the mounting external threaded pipe (101) is fitted with a trapezoidal rubber pad (13), and the mounting nut (12) is located below the trapezoidal rubber pad (13).
8. The integrated roof water filtering inlet valve according to claim 1, characterized in that: The filter tube (2) is threaded with a filter element (14) at the top, and a mounting cap (15) is threaded on the top of the filter element (14). An anti-siphon cover (16) is snapped onto the top of the connecting groove (4), and an anti-siphon pad (17) is inserted through the top of the anti-siphon cover (16). The anti-siphon pad (17) is adapted to the connecting tube (5).
Citation Information
Patent Citations
Water inlet valve of closestool
CN213114854U