Closestool water tank water-saving drain valve convenient to replace

Abstract

The utility model belongs to the technical field of closestool water tanks, and particularly relates to a closestool water tank water-saving drain valve convenient to replace. Connecting plates are fixedly installed at the two ends of the drainage pipe, a small fixing block is fixedly installed at the top of the surface of the drainage pipe, a quick connecting mechanism is arranged on the side, away from the drainage pipe, of each connecting plate, and a flow limiting assembly is arranged on the inner wall of the drainage pipe; an adjusting mechanism is arranged on the sides, close to each other, of the first flow limiting block and the second flow limiting block. Through the arrangement of a connecting ring, a thread, a reinforcing plate, a first flow limiting block and a second flow limiting block, the connecting ring and the thread are matched for use, rapid disassembly and assembly can be achieved, meanwhile, the adaptability is wide, more water tanks can be adapted, the reinforcing plate can reinforce connection between the connecting ring and the connecting plate, connection is more stable, and the service life of the water tank is prolonged. The first flow limiting block and the second flow limiting block are used in cooperation to achieve the flow intercepting effect, waste caused by excessive water loss is prevented, and meanwhile the water source flow speed can be prevented from being too high.

Description

Technical Field

[0001] This utility model belongs to the field of toilet tank technology, specifically a water-saving drain valve for toilet tanks that is easy to replace. Background Technology

[0002] In modern bathroom fixtures, the toilet tank flush valve is a core component controlling drainage and enabling flushing; its performance directly impacts water resource utilization efficiency and user experience. Traditional toilet tank flush valves are generally installed using screws, requiring users to use screwdrivers, wrenches, and other tools for disassembly during repairs or replacements. Furthermore, the confined space inside the tank makes this process extremely inconvenient. Simultaneously, prolonged contact with water and detergents makes the valve body and sealing components susceptible to corrosion, leading to frequent leaks and seal failures. This not only wastes water resources but also increases maintenance costs and replacement frequency for users.

[0003] To address the aforementioned issues, some improvements have emerged in existing technologies. For example, some drain valves employ a snap-fit ​​connection structure, which simplifies the installation process to some extent. However, the snap-fit ​​design is prone to aging and deformation after prolonged use, leading to loose connections and affecting the ease of replacement. Regarding corrosion resistance, although some valve bodies are made of corrosion-resistant plastic, the seals often use ordinary rubber, whose sealing performance rapidly declines under the influence of acidic or alkaline cleaning agents. Furthermore, traditional drain valves are mostly single-stage drainage designs, unable to adjust the drainage volume according to actual needs, resulting in water waste. While some adjustable drain valves possess throttling functions, their complex adjustment structures are prone to jamming and make precise control difficult.

[0004] Therefore, this utility model provides a water-saving drain valve for toilet tanks that is easy to replace. Utility Model Content

[0005] To overcome the shortcomings of the prior art and solve at least one of the problems mentioned in the background art, a water-saving drain valve for toilet tanks that is easy to replace is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A water-saving drain valve for a toilet tank that is easy to replace, comprising a drain pipe; connecting plates are fixedly installed at both ends of the drain pipe, and a fixing block is fixedly installed on the top surface of the drain pipe; a quick-connect mechanism is provided on the side of the connecting plate away from the drain pipe, and a flow-limiting component is provided on the inner wall of the drain pipe; an adjustment mechanism is provided on the side of the first flow-limiting block and the second flow-limiting block that are close to each other; a sealing component is provided on the inner wall of the connecting plate; the quick-connect mechanism includes a connecting ring, a thread, and a reinforcing plate; the connecting ring is fixedly installed on the side of the connecting plate away from the drain pipe, the inner wall of the connecting ring is threaded, and a reinforcing plate is fixedly installed on the side of the connecting ring surface close to the connecting plate; the cooperation of the connecting ring and the thread enables quick disassembly and assembly, and has wide adaptability, adapting to more water tanks; the reinforcing plate strengthens the connection between the connecting ring and the connecting plate, making the connection more stable.

[0007] Preferably, the flow limiting component includes a first flow limiting block and a second flow limiting block. The first flow limiting block is fixedly installed on one side of the inner wall of the drain pipe, and the second flow limiting block is fixedly installed on the other side of the inner wall of the drain pipe. In this scheme, the combined use of the first flow limiting block and the second flow limiting block can achieve the function of interception, prevent excessive water loss and thus waste, and at the same time prevent the water flow rate from being too high.

[0008] Preferably, the regulating mechanism includes a rotating ball, a through hole, and a regulating valve. The rotating ball is rotatably installed on one side of the first flow limiting block and the second flow limiting block. A through hole is provided on one side of the surface of the rotating ball. The top of the rotating ball is fixedly installed with the regulating valve. The regulating valve passes through the drain pipe to the top of the fixed block. The regulating valve is rotatably installed with the fixed block and the drain pipe respectively. In this scheme, the rotating ball can act as a blocker to regulate the opening and closing of the drain pipe. The through hole allows the rotating ball to have a water flow function. The regulating valve can be manually adjusted by the user to control the water flow, thereby achieving water saving.

[0009] Preferably, the sealing assembly includes a limiting plate and a sealing ring. The limiting plate is fixedly installed on the inner wall of the two sets of connecting plates. The side of the limiting plate near the connecting ring is fixedly installed with the sealing ring. In this scheme, the limiting plate can limit the connecting ring when it is connected to the interface to prevent it from being over-tightened. The sealing ring can deform under pressure when the drain pipe is connected to the interface to ensure that there is no water leakage at the interface.

[0010] Preferably, the inner wall of the drain pipe is coated with an anti-corrosion coating. This coating can prevent the drain pipe from rusting and corroding during long-term use, thereby increasing the service life of the drain pipe and reducing the replacement cycle.

[0011] Preferably, the surface of the rotating ball is coated with a wear-resistant coating. In this scheme, the application of the wear-resistant coating on the surface of the rotating ball can increase the friction between the rotating ball and the first flow-limiting block and the second flow-limiting block when the rotating ball rotates, so that the rotating ball can be fixed at a set angle, and at the same time, it can prevent water from being discharged from the gaps of the rotating ball.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The toilet tank water-saving drain valve of this utility model, which is easy to replace, enables quick disassembly and assembly through the setting of connecting ring, thread, reinforcing plate, first flow limiting block and second flow limiting block. At the same time, it has wide compatibility and can be adapted to more water tanks. The reinforcing plate can strengthen the connection between the connecting ring and the connecting plate, making the connection more stable. The cooperation of the first flow limiting block and the second flow limiting block can achieve the function of interception, preventing excessive water loss and waste, and also preventing the water flow rate from being too high.

[0014] 2. The toilet tank water-saving drain valve of this utility model, which is easy to replace, is designed with a rotating ball, a through hole, a regulating valve, a limiting plate, and a sealing ring. The rotating ball can act as a blocker to regulate the opening and closing of the drain pipe. The through hole allows the rotating ball to flow water. The regulating valve can be manually adjusted by the user to control the water flow, thereby regulating the water saving. The limiting plate can limit the connection between the connecting ring and the interface to prevent over-tightening. The sealing ring can deform under pressure when the drain pipe is connected to the interface to ensure that there is no leakage at the interface. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a front perspective view of the present invention;

[0017] Figure 2 This is a sectional view of the present invention;

[0018] Figure 3 This is an exploded view of this utility model;

[0019] Figure 4 yes Figure 2 Enlarged view of a portion of point A in the middle.

[0020] Legend:

[0021] 1. Drain pipe; 2. Connecting plate; 3. Fixing block; 4. Quick-connect mechanism; 41. Connecting ring; 42. Thread; 43. Reinforcing plate; 5. Flow limiting component; 51. First flow limiting block; 52. Second flow limiting block; 6. Adjusting mechanism; 61. Rotating ball; 62. Through hole; 63. Adjusting valve; 7. Sealing component; 71. Limiting plate; 72. Sealing ring. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] like Figures 1 to 4 As shown in the embodiment of this utility model, a water-saving drain valve for a toilet tank that is easy to replace includes a drain pipe 1; connecting plates 2 are fixedly installed at both ends of the drain pipe 1, a fixing block 3 is fixedly installed on the top surface of the drain pipe 1, a quick-connect mechanism 4 is provided on the side of the connecting plate 2 away from the drain pipe 1, and a flow-limiting component 5 is provided on the inner wall of the drain pipe 1; an adjusting mechanism 6 is provided on the side of the first flow-limiting block 51 and the second flow-limiting block 52 that are close to each other; a sealing component 7 is provided on the inner wall of the connecting plate 2; the quick-connect mechanism 4 includes a connecting ring 41, a thread 42, and a reinforcing plate 43, the connecting ring 41 is fixedly installed on the side of the connecting plate 2 away from the drain pipe 1, the inner wall of the connecting ring 41 is provided with a thread 42, and the reinforcing plate 43 is fixedly installed on the side of the connecting ring 41 that is close to the connecting plate 2; the flow-limiting component 5 includes a first flow-limiting block 51 and a second flow-limiting block 52, the first flow-limiting block 51... Block 51 is fixedly installed on one side of the inner wall of drain pipe 1, and the second flow limiting block 52 is fixedly installed on the other side of the inner wall of drain pipe 1. The adjusting mechanism 6 includes a rotating ball 61, a through hole 62, and a regulating valve 63. The rotating ball 61 is rotatably installed on the side of the first flow limiting block 51 and the second flow limiting block 52 that are close to each other. A through hole 62 is provided on one side of the surface of the rotating ball 61. The top of the surface of the rotating ball 61 is fixedly installed with the regulating valve 63. The regulating valve 63 passes through the drain pipe 1 to the top of the fixed block 3. The regulating valve 63 is rotatably installed with the fixed block 3 and the drain pipe 1 respectively. The sealing assembly 7 includes a limiting plate 71 and a sealing ring 72. The limiting plate 71 is fixedly installed on the inner wall of the two sets of connecting plates 2. The side of the limiting plate 71 near the connecting ring 41 is fixedly installed with the sealing ring 72. The inner wall of the drain pipe 1 is coated with an anti-corrosion coating, and the surface of the rotating ball 61 is coated with a wear-resistant coating.

[0025] like Figures 1 to 4As shown, the connection ring 41 and thread 42 work together to achieve quick assembly and disassembly, and are widely adaptable to fit more water tanks. The reinforcing plate 43 strengthens the connection between the connection ring 41 and the connecting plate 2, making the connection more stable. The first flow limiting block 51 and the second flow limiting block 52 work together to intercept water, preventing excessive water loss and waste, and also preventing excessive water flow velocity. The rotating ball 61 acts as a blocker to regulate the opening and closing of the drain pipe 1. The opening of the through hole 62 allows the rotating ball 61 to flow water. The regulating valve 63 allows the user to manually adjust the water flow, thereby regulating water conservation. The limiting plate 71 can limit the connection of the connecting ring 41 when it is connected to the interface, preventing it from being over-tightened. The sealing ring 72 can deform under pressure when the drain pipe 1 is connected to the interface to ensure that the interface does not leak. The anti-corrosion coating can prevent the drain pipe 1 from rusting and corroding during long-term use, thereby improving the service life of the drain pipe 1 and reducing the replacement cycle. The wear-resistant coating on the surface of the rotating ball 61 can increase the friction between the rotating ball 61 and the first flow limiting block 51 and the second flow limiting block 52 when the rotating ball 61 rotates, so that the rotating ball 61 can be fixed at a set angle, while also preventing water from flowing out from the gaps of the rotating ball 61.

[0026] Working principle: During operation, first align one end of drain pipe 1 with the toilet tank. Then, install drain pipe 1 to the drain outlet of the tank using threads 42. When the connecting ring 41 is in place, the limiting plate 71 restricts further insertion of the interface, and the sealing ring 72 is compressed, thus ensuring no leakage at the interface. The user then rotates the regulating valve 63, causing the rotating ball 61 to rotate. The rotation of the ball 61 moves the through hole 62. When the through hole 62 moves to be flush with the first flow-limiting block 51, the drain valve is fully open. Then, connect the other end of drain pipe 1 to... The drain outlet connection prevents water from flowing through. The first flow limiting block 51 and the second flow limiting block 52 block some of the water, allowing the water to flow only through the through hole 62. The diameter of the through hole 62 is also small, so only a portion of the water can pass through, thus achieving a water-saving effect. At the same time, the user can rotate the regulating valve 63 to adjust the size of the through hole 62 to ensure that the water flow is further reduced, thereby achieving a more efficient water-saving effect. When a better effect is needed, the user can simply rotate the connecting ring 41 to complete the disassembly, which is very convenient. In addition, most water tanks on the market are threaded connections, so the adaptability of this utility model is also enhanced.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A replaceable toilet cistern water saving flush valve comprising a flush pipe (1); characterised in that: The drain pipe (1) is fixedly installed with connecting plates (2) at both ends, and fixed small blocks (3) are fixedly installed on the top surface of the drain pipe (1). A quick-connect mechanism (4) is provided on the side of the connecting plate (2) away from the drain pipe (1), and a flow-limiting component (5) is provided on the inner wall of the drain pipe (1). The quick-connect mechanism (4) includes a connecting ring (41), a thread (42) and a reinforcing plate (43). The connecting ring (41) is fixedly installed on the side of the connecting plate (2) away from the drain pipe (1). The inner wall of the connecting ring (41) is provided with a thread (42). The reinforcing plate (43) is fixedly installed on the side of the connecting ring (41) close to the connecting plate (2). The flow limiting component (5) includes a first flow limiting block (51) and a second flow limiting block (52). The first flow limiting block (51) is fixedly installed on one side of the inner wall of the drain pipe (1), and the second flow limiting block (52) is fixedly installed on the other side of the inner wall of the drain pipe (1).

2. A replaceable toilet tank water saving flush valve according to claim 1, wherein: An adjustment mechanism (6) is provided on the side of the first current limiting block (51) and the second current limiting block (52) that are close to each other.

3. A replaceable toilet tank water saving flush valve as defined in claim 2 wherein: The inner wall of the connecting plate (2) is provided with a sealing component (7).

4. A replaceable toilet tank water saving flush valve according to claim 3, wherein: The regulating mechanism (6) includes a rotating ball (61), a through hole (62) and a regulating valve (63). The rotating ball (61) is rotatably installed on the side of the first flow limiting block (51) and the second flow limiting block (52) that are close to each other. A through hole (62) is provided on one side of the surface of the rotating ball (61). The top of the surface of the rotating ball (61) is fixedly installed with the regulating valve (63). The regulating valve (63) passes through the drain pipe (1) to the top of the fixed block (3). The regulating valve (63) is rotatably installed with the fixed block (3) and the drain pipe (1) respectively.

5. A replaceable toilet tank water saving flush valve according to claim 4, wherein: The sealing assembly (7) includes a limiting plate (71) and a sealing ring (72). The limiting plate (71) is fixedly installed on the inner wall of the two sets of connecting plates (2). The limiting plate (71) is fixedly installed with the sealing ring (72) on the side of the connecting ring (41) close to the connecting ring (41).

6. A replaceable toilet tank water saving flush valve as defined in claim 5 wherein: The inner wall of the drain pipe (1) is coated with an anti-corrosion coating.

7. A replaceable toilet tank water saving flush valve as defined in claim 6 wherein: The surface of the rotating ball (61) is coated with a wear-resistant coating.

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