Water-saving foot-operated toilet flushing valve

Abstract

The utility model relates to valve technical field, concretely is a kind of water-saving pedal type toilet flushing valve, including circular mounting shell, the bottom of circular mounting shell is conical, conical water guide cover is fixedly connected on the inner side wall of circular mounting shell, conical water guide cover divides the inside space of circular mounting shell from top to bottom into water storage chamber and water guide chamber, first sealing ring is installed on the inner side wall of the opening of conical water guide cover one end, valve rod is arranged in first sealing ring, the top of circular mounting shell is provided with the foot-driven drive assembly for driving valve rod displacement, the outer side wall of circular mounting shell is connected with positioning assembly, and the water-saving pedal type toilet flushing valve can be according to different pedal strength, realize different water discharge, reach the purpose of adjusting drainage capacity according to need, more water-saving, and practicality is strong.

Description

Technical Field

[0001] This utility model specifically relates to a water-saving foot-operated toilet flush valve, belonging to the field of valve technology. Background Technology

[0002] Foot-operated toilet flush valves are water-saving devices widely used in public places and home bathrooms. They avoid hand contact and are more hygienic. The working process is generally that the user applies force by stepping on the pedal to activate the flush valve. Foot-operated flush valves are usually equipped with a pedal, and the user only needs to step on the pedal to trigger the flushing action.

[0003] Foot-operated toilet flush valves typically have a spring-loaded spring connected to the foot pedal. The foot pedal and the internal valve's water-stopping mechanism are linked. When the foot pedal is pressed, the internal valve's water-stopping mechanism opens, and water flows. When the user's foot leaves the foot pedal, the spring-loaded spring and the internal valve's water-stopping mechanism return to their original positions, stopping the flow. However, if this spring-loaded spring breaks or is damaged due to prolonged use, the internal valve's water-stopping mechanism may fail to return to its original position, causing the valve to leak continuously.

[0004] In view of this, a water-saving foot-operated toilet flush valve is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a water-saving foot-operated toilet flush valve to solve the above problems. It can achieve different water output according to different foot pedal pressure, and can also stop the water flow when the valve is damaged.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a water-saving foot-operated toilet flush valve includes a circular mounting shell with a conical bottom. A conical water guide cover is fixedly connected to the inner wall of the circular mounting shell. The conical water guide cover divides the internal space of the circular mounting shell into a water storage chamber and a water guiding chamber from top to bottom. A first sealing ring is installed on the inner wall of the opening at one end of the conical water guide cover. A valve stem is disposed inside the first sealing ring. A foot-operated drive assembly for driving the valve stem to move up and down is disposed on the top of the circular mounting shell. A positioning assembly is connected to the outer wall of the circular mounting shell.

[0007] Furthermore, in order to inject water into the circular mounting housing through the water inlet pipe, the circular mounting housing is provided with a first mounting hole, and a water inlet pipe is fixedly connected to the inner side wall of the first mounting hole. The bottom of the circular mounting housing is provided with a second mounting hole, and a drain pipe is installed on the inner side wall of the second mounting hole.

[0008] Furthermore, in order to enable the drain pipe and the drain pipe to be connected to external pipes, the drain pipe is provided with connecting threads.

[0009] Furthermore, in order to increase the sealing performance through the second sealing ring, the foot-operated drive assembly includes an operating rod fixedly connected to the top of the valve stem, and the top of the circular mounting housing is provided with a through hole, in which the second sealing ring is installed.

[0010] Furthermore, in order to install the foot pedal via the connecting rod, one end of the operating rod passes through the second sealing ring and extends to the outside of the circular mounting housing. One end of the operating rod is provided with a threaded groove, and a connecting screw is threaded into the threaded groove. The foot pedal is installed on the top of the connecting screw.

[0011] Furthermore, in order to increase the anti-slip properties of the foot pedal through the anti-slip protrusions, the foot pedal is evenly distributed with a number of anti-slip protrusions, and a spring is provided at the bottom of the foot pedal, and the spring is sleeved on the outside of the operating lever, with one end of the spring located at the top of the circular mounting housing.

[0012] Furthermore, to facilitate the rotation of the drive screw, the positioning assembly includes a mounting base with a groove on the top surface of the outer wall of the circular mounting housing. The drive screw is rotatably mounted in the groove on the top surface of the mounting base. One end of the drive screw extends to the outside of the mounting base, and a handle is connected to one end of the drive screw.

[0013] Furthermore, in order to move the linkage rod via the drive block, the drive screw is threadedly connected to the drive block, and the drive block is located in the groove on the top surface of the mounting base. The top of the drive block is connected to the linkage rod, and a U-shaped limit stop is installed on one end of the linkage rod.

[0014] The technical effects and advantages of this utility model are as follows: By providing a conical water guide cover and a positioning component, when the foot pedal is pressed, the valve stem can be lowered inside the conical water guide cover. The degree to which the valve stem is lowered affects the amount of water drained inside the conical water guide cover, thus achieving the purpose of adjusting the amount of water drained as needed, which is more water-saving. In addition, when the spring is damaged, the positioning component can position the valve stem to a water-stopping state, preventing the valve stem from moving down and leaking water, which also achieves the purpose of water saving. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3This is a schematic diagram of the positioning component structure in this utility model;

[0018] Figure 4 This is an exploded structural diagram of the foot pedal and operating lever in this utility model;

[0019] Figure 5 This is a schematic diagram showing the installation of the first sealing ring and the second sealing ring in this utility model;

[0020] In the diagram: 1. Circular mounting housing; 2. Conical water guide cover; 3. Water storage chamber; 4. Water guide chamber; 5. First sealing ring; 6. Valve stem; 7. Foot pedal drive assembly; 701. Operating lever; 702. Second sealing ring; 703. Connecting screw; 704. Foot pedal; 705. Spring; 8. Positioning assembly; 801. Mounting base; 802. Drive screw; 803. Drive block; 804. Linkage rod; 805. U-shaped limit stop; 9. Water inlet pipe; 10. Drain pipe. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-5 As shown, a water-saving foot-operated toilet flush valve includes a circular mounting housing 1 with a conical bottom. A conical water guide 2 is fixedly connected to the inner wall of the circular mounting housing 1. The conical water guide 2 divides the internal space of the circular mounting housing 1 into a water storage chamber 3 and a water guide chamber 4 from top to bottom. A first sealing ring 5 is installed on the inner wall of the opening at one end of the conical water guide 2. A valve stem 6 is disposed inside the first sealing ring 5. After the valve stem 6 descends at the opening at one end of the conical water guide 2, the opening at one end of the conical water guide 2 can be exposed. At this time, the water source in the water storage chamber 3 can be drained through the opening. A foot-operated drive assembly 7 for driving the valve stem 6 to move up and down is provided on the top of the circular mounting housing 1. A positioning assembly 8 is connected to the outer wall of the circular mounting housing 1.

[0023] A first mounting hole is provided on the circular mounting housing 1. A water inlet pipe 9 is fixedly connected to the inner wall of the first mounting hole. A second mounting hole is provided at the bottom of the circular mounting housing 1. A drain pipe 10 is installed on the inner wall of the second mounting hole. A connecting thread is provided on the drain pipe 10. The water inlet pipe 9 can supply water into the circular mounting housing 1. The water discharged from the circular mounting housing 1 can eventually be discharged through the drain pipe 10.

[0024] The foot-operated drive assembly 7 includes an operating lever 701 fixedly connected to the top of the valve stem 6. The top of the circular mounting housing 1 is provided with a through hole, and a second sealing ring 702 is installed in the through hole. One end of the operating lever 701 is provided with a threaded groove, and a connecting screw 703 is threadedly connected in the threaded groove. A foot pedal 704 is installed on the top of the connecting screw 703. One end of the operating lever 701 passes through the second sealing ring 702 and extends to the circular mounting housing 1. The foot pedal 704 has several anti-slip protrusions evenly distributed. A spring 705 is provided at the bottom of the foot pedal 704, and the spring 705 is sleeved on the outside of the operating lever 701. One end of the spring 705 is located at the top of the circular mounting housing 1. When installing the spring 705, the user can first sleeve the spring 705 on the outside of the operating lever 701, and then the user can connect the foot pedal 704 to the top of the operating lever 701 through the connecting screw 703. At this time, the spring 705 is installed.

[0025] The positioning assembly 8 includes a mounting base 801 with a groove on the top surface of the outer wall of the circular mounting housing 1. A drive screw 802 is rotatably mounted in the groove on the top surface of the mounting base 801. One end of the drive screw 802 extends to the outside of the mounting base 801 and is connected to a handle. A drive block 803 is threaded onto the drive screw 802 and is located in the groove on the top surface of the mounting base 801. A linkage rod 804 is connected to the top of the drive block 803. A U-shaped limit stop 805 is mounted on one end of the linkage rod 804. When the U-shaped limit stop 805 moves, it can prevent the foot pedal 704 from moving down. After the foot pedal 704 cannot move down, the operating rod 701 and the valve stem 6 also cannot move down.

[0026] In use, the user can first connect the inlet pipe 9 and the outlet pipe 10 to an external pipe. The water entering the inlet pipe 9 can enter the water storage chamber 3 inside the circular mounting housing 1. When flushing is needed, the user can step on the foot pedal 704. When the foot pedal 704 descends, it can compress the spring 705. At the same time, the foot pedal 704 can drive the operating lever 701 and the valve stem 6 to descend. When the valve stem 6 descends to a certain extent, the water in the water storage chamber 3 can be drained through the opening at one end of the conical water guide shroud 2. As the valve stem 6 continues to descend, the drainage space formed by the outer side of the valve stem 6 and the inner side of the conical water guide shroud 2 increases, and the drainage volume increases. Therefore, the different degrees to which the valve stem 6 descends result in different drainage volumes inside the conical water guide shroud 2, achieving the purpose of adjusting the drainage volume as needed, thus saving water. Furthermore, if the spring 705 is damaged, the user can first pull the foot pedal 704 until the valve stem 6 returns to the opening at one end of the conical water guide shroud 2. At this time, the device is in a water-stopping state. Afterward, the user can rotate the drive screw 802 to move the drive block 803, the linkage rod 804, and the U-shaped limit stop 805 until the U-shaped limit stop 805 reaches the foot pedal 704. At this time, the U-shaped limit stop can prevent the foot pedal 704 and the valve stem 6 from descending, preventing the valve stem 6 from moving downward and leaking water, thus achieving the purpose of saving water.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water-saving foot-operated toilet flushing valve comprising a circular mounting housing (1), the bottom of said circular mounting housing (1) is conical, characterized in that: A conical water guide cover (2) is fixedly connected to the inner wall of the circular mounting housing (1). The conical water guide cover (2) divides the internal space of the circular mounting housing (1) into a water storage chamber (3) and a water guide chamber (4) from top to bottom. A first sealing ring (5) is installed on the inner wall of the opening at one end of the conical water guide cover (2). A valve stem (6) is provided inside the first sealing ring (5). A foot pedal drive assembly (7) for driving the valve stem (6) to move up and down is provided on the top of the circular mounting housing (1). A positioning assembly (8) is connected to the outer wall of the circular mounting housing (1).

2. The water-saving foot-operated toilet flush valve as set forth in claim 1, wherein: The circular mounting housing (1) is provided with a first mounting hole, and a water inlet pipe (9) is fixedly connected to the inner wall of the first mounting hole. The bottom of the circular mounting housing (1) is provided with a second mounting hole, and a drain pipe (10) is installed on the inner wall of the second mounting hole.

3. The water-saving foot-operated toilet flush valve as set forth in claim 2, wherein: The drain pipe (10) is provided with connecting threads.

4. The water-saving foot-operated toilet flush valve as set forth in claim 1, wherein: The foot-operated drive assembly (7) includes an operating rod (701) fixedly connected to the top of the valve stem (6), and the top of the circular mounting housing (1) is provided with a through hole, in which a second sealing ring (702) is installed.

5. The water-saving foot-operated toilet flush valve according to claim 4, wherein: One end of the operating lever (701) passes through the second sealing ring (702) and extends to the outside of the circular mounting housing (1). One end of the operating lever (701) is provided with a threaded groove, and a connecting screw (703) is threadedly connected in the threaded groove. A foot pedal (704) is installed on the top of the connecting screw (703).

6. The water-saving foot-operated toilet flush valve according to claim 5, wherein: The foot pedal (704) has several anti-slip protrusions evenly distributed. A spring (705) is provided at the bottom of the foot pedal (704), and the spring (705) is sleeved on the outside of the operating lever (701). One end of the spring (705) is located at the top of the circular mounting shell (1).

7. The water-saving foot-operated toilet flush valve according to claim 1, wherein: The positioning component (8) includes a mounting base (801) with a groove on the top surface of the outer side wall of the circular mounting housing (1). A drive screw (802) is rotatably mounted in the groove on the top surface of the mounting base (801). One end of the drive screw (802) extends to the outside of the mounting base (801), and a handle is connected to one end of the drive screw (802).

8. The water-saving foot-operated toilet flush valve according to claim 7, wherein: A drive block (803) is threaded onto the drive screw (802), and the drive block (803) is located in the groove on the top surface of the mounting base (801). A linkage rod (804) is connected to the top of the drive block (803), and a U-shaped limit stop (805) is installed on one end of the linkage rod (804).

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