Water tank flushing system

Abstract

The utility model provides a water tank flushing system which comprises a water tank, a water inlet valve, a water pump, a switching valve, an upper punch and a lower punch. And the water inlet valve supplies water to the water tank. The water inlet end of the water pump is communicated with the inside of the water tank, and the water outlet end is communicated with the water inlet of the switching valve through a water pipe. The switching valve is provided with an inner cavity, an upper water drainage opening and a lower water drainage opening, the water inlet, the upper water drainage opening and the lower water drainage opening are all communicated with the inner cavity, and a floating switching piece is installed in the inner cavity. And the floating switching piece is switched between a state of blocking the lower water drainage opening and opening the upper water drainage opening and a state of blocking the upper water drainage opening and opening the lower water drainage opening through water feeding and water stopping actions of the water pump on the inner cavity, so that switching actions of water discharging of the upper punch and water discharging of the lower punch are realized. The water tank flushing system has the advantage that control is reduced, and therefore the problems that an existing flushing system is high in failure rate, multiple in control socket and connecting line, high in cost and troublesome to install can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen and bathroom, in particular to a water tank flushing system. Background Art

[0002] With the advancement of technology, the flushing system of toilets has undergone many changes. The biggest change is that it has changed from mechanical manual flushing to automatic flushing, which provides great convenience for consumers. The existing toilet flushing system can generally realize the process of up flushing, down flushing and water replenishment. For this reason, the toilet flushing system often needs to be set up with multiple switching elements. These switching elements are mostly a combination of water pumps and stepper motors, which have problems such as high failure rate, many control sockets and connecting wires, high cost and troublesome installation. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a flushing structure with a small number of switching elements.

[0004] A water tank flushing system comprises a water tank, a water inlet valve, a water pump, a switching valve, an upper punch and a lower punch, wherein:

[0005] The water inlet valve supplies water to the water tank.

[0006] The water inlet end of the water pump is connected to the inside of the water tank, and the water outlet end is connected to the water inlet of the switching valve through a water pipe to supply water to the switching valve.

[0007] The switching valve is provided with an inner cavity, an upper drain port and a lower drain port. The water inlet, the upper drain port and the lower drain port are all connected with the inner cavity, and a floating switching member is installed in the inner cavity.

[0008] The upper punch is connected to the upper drain outlet through an upper punch pipe, and the lower punch is connected to the lower drain outlet through a lower punch pipe.

[0009] The floating switching member switches between a state of blocking the lower drain outlet and opening the upper drain outlet and a state of blocking the upper drain outlet and opening the lower drain outlet through the water pump's water flow and water stop action on the inner cavity, thereby realizing the switching action of water discharge from the upper punch and water discharge from the lower punch.

[0010] The water tank flushing system provided by the present application has the advantage of reduced control, thereby being able to solve the problems of high failure rate, multiple control sockets and connecting wires, high cost and troublesome installation in the existing flushing system.

[0011] Preferably, the water inlet valve is installed inside the water tank to avoid occupying space outside the water tank.

[0012] Preferably, the water pump is installed in the water tank to further improve the compactness and integrity of the flushing system.

[0013] Preferably, the water tank is also provided with a tank cover, which not only can seal the water tank but also can provide installation positions for other components. The switching valve is installed on the tank cover, and the water inlet of the switching valve passes through the tank cover and is connected to the water pump.

[0014] Preferably, in order to reduce the space occupied by the water pump in the water tank, a water outlet is provided at the bottom of the water tank, the water pump is arranged outside the water tank, and the water inlet end is connected to the water outlet of the water tank through another water pipe.

[0015] Preferably, the switching valve is also arranged outside the water tank to further reduce the occupation of the internal space of the water tank.

[0016] Preferably, in order to reduce the difficulty of molding the switching valve housing, the switching valve housing is circular or square and consists of an upper housing and a lower housing, the upper drain port is located in the upper housing, and the water inlet and lower drain port are located in the lower housing.

[0017] Preferably, the upper drain outlet is located at the top of the switching valve, the lower drain outlet is located at the side of the switching valve, and the water inlet is located at the bottom of the switching valve.

[0018] The floating switching member includes a blocking body and a floating self-locking body. The blocking body is movably installed in the inner cavity of the switching valve, with the bottom facing the water inlet. The blocking body blocks the upper drain outlet or the lower drain outlet by moving up and down. The floating self-locking body is movably installed in the blocking body, and a self-locking structure is provided between the blocking body and the blocking body.

[0019] In the initial state, the water inlet and the upper water outlet are connected, the blocking body is located at the bottom and blocks the lower drain outlet, the floating self-locking body is located at the bottom of the moving range under the action of gravity, and the self-locking structure forms a locked state.

[0020] When the switching valve passes water for the first time, the blocking body moves upward under the impact of water inflow from the water inlet, and keeps blocking the lower drain outlet under the action of the self-locking structure.

[0021] When the switching valve stops water for the first time, the blocking body moves downward under the action of gravity, and the floating self-locking body moves and unlocks the self-locking structure under the action of buoyancy (the inner cavity is filled with water at this time).

[0022] When the switching valve passes water for the second time, the blocking body moves upward under the impact of water inflow from the water inlet, opens the lower drain outlet, and blocks the upper drain outlet.

[0023] When the switching valve stops water supply for the second time, the blocking body and the floating self-locking body return to their initial states.

[0024] Preferably, the blocking body is provided with a horizontal mounting hole, the floating self-locking body is movably mounted in the mounting hole, and a limiting protrusion extending out of the mounting hole is provided at one end, and a limiting groove opposite to the limiting protrusion is provided inside the switching valve, and the limiting groove has a larger dimension in the vertical direction than the limiting protrusion. The limiting protrusion and the limiting groove constitute the self-locking structure, and when the limiting protrusion is inserted into the limiting groove, the blocking body can be limited from floating up as a whole to form a locked state.

[0025] Preferably, the floating self-locking body is provided with a buoyancy groove with an opening facing downward, and when the inner cavity is filled with water, the buoyancy groove provides buoyancy for the floating self-locking body. The bottom end of the floating self-locking body and the side opposite to the limiting protrusion are rotatably installed in the blocking body, or the floating self-locking body is slidably installed in the mounting hole through an inclined track, and the farther the track is from the limiting groove, the farther the distance from the limiting groove is. When the switching valve stops water for the first time, the blocking body moves downward under the action of gravity, and the floating self-locking body flips upward under the action of the buoyancy provided by the buoyancy groove, or moves obliquely upward along the inclined track, so that the limiting protrusion of the floating self-locking body withdraws from the limiting groove to achieve automatic unlocking, so that when the switching valve is passed through water for the second time, the impact force of the water can push the entire blocking body upward without being restricted by the self-locking structure.

[0026] From the above description of the utility model, it can be seen that the utility model has the following beneficial effects:

[0027] The water tank flushing system provided by the present application has the advantage of reduced control, thereby being able to solve the problems of high failure rate, many control sockets and connecting wires, high cost, and troublesome installation in the existing flushing system;

[0028] The water inlet valve and water pump can be installed in the water tank, making the overall structure more compact and integrated, and easier to install with the toilet;

[0029] The water inlet valve, water pump and switching valve can all be arranged outside the water tank, thereby reducing the occupation of the internal space of the water tank and reducing the size of the water tank.

[0030] The switching valve is provided with a floating self-locking body, which can cleverly use hydraulic power and a self-locking structure to achieve the switching action of the switching valve being controlled by only one water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0032] in:

[0033] Figure 1 Axonometric view of a water tank flushing system Figure 1 ;

[0034] Figure 2 It is an explosion of the water tank flushing system Figure 1 ;

[0035] Figure 3 This is a schematic diagram of the installation of a water tank flushing system. Figure 1 ;

[0036] Figure 4 Axonometric view of a water tank flushing system Figure 2 ;

[0037] Figure 5 It is an explosion of the water tank flushing system Figure 2 ;

[0038] Figure 6 This is a schematic diagram of the installation of a water tank flushing system. Figure 2 ;

[0039] Figure 7 It was the explosion of the switching valve. Figure 1 ;

[0040] Figure 8 This is a diagram of the switching valve in the initial state and the second water cut-off state. Figure 1 ;

[0041] Fig. 9 This is the indication that the switching valve is in the first water flow state. Figure 1 ;

[0042] Fig.10 This is the indication that the switching valve is in the first water cut-off state. Figure 1 ;

[0043] Fig.11 This is the indication that the switching valve is in the second water flow state. Figure 1 ;

[0044] Fig.12 It was the explosion of the switching valve. Figure 2 ;

[0045] Fig.13 This is a diagram of the switching valve in the initial state and the second water cut-off state. Figure 2 ;

[0046] Fig.14 This is the indication that the switching valve is in the first water flow state. Figure 2 ;

[0047] Fig.15 This is the indication that the switching valve is in the first water cut-off state. Figure 2 ;

[0048] Fig.16 This is the indication that the switching valve is in the second water flow state. Figure 2 ;

[0049] Figures 1 to 16 The symbols are: water tank 1, water inlet valve 2, water pump 3, switching valve 4, water inlet 41, inner cavity 42, upper drain outlet 43, lower drain outlet 44, blocking body 45, mounting hole 451, track 452, floating self-locking body 46, limiting protrusion 461, buoyancy groove 462, limiting groove 47, upper punch 5, and lower punch 6. DETAILED DESCRIPTION

[0050] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0051] See also Figures 1 to 16 A water tank 1 flushing system comprises a water tank 1, a water inlet valve 2, a water pump 3, a switching valve 4, an upper punch 5 and a lower punch 6, wherein:

[0052] The water inlet valve 2 supplies water to the water tank 1. The water inlet end of the water pump 3 is connected to the inside of the water tank 1, and the water outlet end is connected to the water inlet 41 of the switching valve 4 through a water pipe to supply water to the switching valve 4.

[0053] In this embodiment, the water inlet valve 2 and the water pump 3 are installed in the water tank 1 to avoid occupying the space outside the water tank 1, further improving the compactness and integrity of the flushing system. Alternatively, in another embodiment, the water tank 1 is also provided with a tank cover, which can not only cover the water tank 1, but also provide installation positions for other components. The switching valve 4 is installed on the tank cover, and the water inlet 41 of the switching valve 4 passes through the tank cover and is connected to the water pump 3. In addition, in order to reduce the occupation of the internal space of the water tank 1 by the water pump 3, a water outlet is provided at the bottom of the water tank 1, and the water pump 3 is arranged outside the water tank 1, and the water inlet end is connected to the water outlet of the water tank 1 through another water pipe.

[0054] The switching valve 4 is provided with an inner cavity 42, an upper drain port 43 and a lower drain port 44. The water inlet 41, the upper drain port 43 and the lower drain port 44 are all connected to the inner cavity 42, and a floating switching member is installed in the inner cavity 42. The upper punch 5 is connected to the upper drain port 43 through an upper punch pipe, and the lower punch 6 is connected to the lower drain port 44 through a lower punch pipe.

[0055] In one embodiment, in order to reduce the difficulty of molding the housing of the switching valve 4, the housing of the switching valve 4 is round or square, and is composed of an upper housing and a lower housing, the upper drain port 43 is located in the upper housing, and the water inlet 41 and the lower drain port 44 are located in the lower housing. Preferably, the upper drain port 43 is located at the top of the switching valve 4, the lower drain port 44 is located at the side of the switching valve 4, and the water inlet 41 is located at the bottom of the switching valve 4.

[0056] The floating switching member switches between the state of blocking the lower drain port 44 and opening the upper drain port 43 and the state of blocking the upper drain port 43 and opening the lower drain port 44 through the water pump 3 to pass water on and stop water in the inner cavity 42, thereby realizing the switching action of water discharge from the upper punch 5 and water discharge from the lower punch 6. Specifically, in one embodiment, the floating switching member includes a blocking body 45 and a floating self-locking body 46. The blocking body 45 is movably installed in the inner cavity 42 of the switching valve 4, with the bottom facing the water inlet 41. The blocking body 45 blocks the upper drain port 43 or the lower drain port 44 by moving up and down. The floating self-locking body 46 is movably installed in the blocking body 45, and a self-locking structure is provided between the blocking body 45 and the blocking body 45.

[0057] In the initial state, the water inlet 41 is connected to the upper water outlet, the blocking body 45 is located at the bottom and blocks the lower drain outlet 44, the floating self-locking body is located at the bottom of the moving range under the action of gravity, and the self-locking structure forms a locked state.

[0058] When the switching valve 4 passes water for the first time, the blocking body 45 moves upward under the impact of water inflow from the water inlet 41 , and keeps blocking the lower drain outlet 44 under the action of the self-locking structure.

[0059] When the switching valve 4 stops water supply for the first time, the blocking body 45 moves downward under the action of gravity, and the floating self-locking body 46 moves and unlocks the self-locking structure under the action of buoyancy (the inner cavity 42 is filled with water at this time).

[0060] When the switching valve 4 passes water for the second time, the blocking body 45 moves upward under the impact of water inflow from the water inlet 41 , opens the lower drain port 44 , and blocks the upper drain port 43 .

[0061] When the switching valve 4 stops water supply for the second time, the blocking body 45 and the floating self-locking body return to the initial state.

[0062] The switching valve 4 can utilize the switching valve provided by the invention patent with patent number CN202311728799.1, or, in another embodiment, the blocking body 45 is provided with a mounting hole 451 in the horizontal direction, the floating self-locking body 46 is movably installed in the mounting hole 451, and one end is provided with a limiting protrusion 461 extending from the mounting hole 451, and the interior of the switching valve 4 is provided with a limiting groove 47 opposite to the limiting protrusion 461, and the limiting groove 47 has a larger size in the vertical direction than the limiting protrusion 461, and the limiting protrusion 461 and the limiting groove 47 constitute the self-locking structure, and when the limiting protrusion 461 is inserted into the limiting groove 47, the blocking body 45 can be limited from floating up as a whole to form a locked state.

[0063] Specifically, the floating self-locking body 46 is provided with a buoyancy groove 462 with an opening facing downward. When the inner cavity 42 is filled with water, the buoyancy groove 462 provides buoyancy for the floating self-locking body 46. The bottom end of the floating self-locking body 46 and the side opposite to the limiting protrusion 461 are rotatably installed in the blocking body 45, or the floating self-locking body 46 is slidably installed in the mounting hole 451 through an inclined track 452, and the track 452 is farther away from the limiting groove 47 as it goes up. When the switching valve 4 stops water for the first time, the blocking body 45 moves downward under the action of gravity, and the floating self-locking body 46 is turned upward under the action of the buoyancy provided by the buoyancy groove 462 (such as Figures 7 to 11 ), or move obliquely upward along the inclined track 452 (such as Figure 12 to Figure 16 ), so that the limiting protrusion 461 of the floating self-locking body 46 withdraws from the limiting groove 47 to achieve automatic unlocking. When the switching valve 4 passes water for the second time, the impact force of the water can push the entire blocking body 45 upward without being restricted by the self-locking structure.

[0064] The water tank 1 flushing system provided in the present application has the advantage of reduced control, thereby being able to solve the problems of high failure rate, multiple control sockets and connecting wires, high cost and troublesome installation in the existing flushing system.

[0065] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0066] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0067] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0069] In the present utility model, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0070] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A water tank flushing system, characterized in that: It includes a water tank, a water inlet valve, a water pump, a switching valve, an upper punch and a lower punch; The water inlet valve supplies water to the water tank; The water inlet end of the water pump is connected to the inside of the water tank, and the water outlet end is connected to the water inlet of the switching valve through a water pipe to supply water to the switching valve; The switching valve is provided with an inner cavity, an upper drain port and a lower drain port, the water inlet, the upper drain port and the lower drain port are all connected with the inner cavity, and a floating switching member is installed in the inner cavity; the upper punch is connected to the upper drain port through an upper punch pipe, and the lower punch is connected to the lower drain port through a lower punch pipe; The floating switching member switches between a state of blocking the lower drain outlet and opening the upper drain outlet and a state of blocking the upper drain outlet and opening the lower drain outlet by the water pump passing water through and stopping water in the inner cavity.

2. A water tank flushing system according to claim 1, characterized in that: The water inlet valve is installed in the water tank.

3. A water tank flushing system according to claim 1, characterized in that: The water pump is installed in the water tank.

4. A water tank flushing system according to claim 3, characterized in that: The water tank is also provided with a tank cover, the switching valve is mounted on the tank cover, and the water inlet of the switching valve passes through the tank cover and is connected to the water pump.

5. A water tank flushing system according to claim 1, characterized in that: A water outlet is arranged at the bottom of the water tank, the water pump is arranged outside the water tank, and the water inlet end is connected to the water outlet of the water tank through another water pipe.

6. A water tank flushing system according to claim 5, characterized in that: The switching valve is also arranged outside the water tank.

7. A water tank flushing system according to claim 1, characterized in that: The housing of the switching valve is circular or square, and is composed of an upper housing and a lower housing. The upper drain port is located in the upper housing, and the water inlet and the lower drain port are located in the lower housing.

8. A water tank flushing system according to claim 1, characterized in that: The upper drain port is located at the top of the switching valve, the lower drain port is located at the side of the switching valve, and the water inlet is located at the bottom of the switching valve; The floating switching member comprises a blocking body and a floating self-locking body. The blocking body is movably installed in the inner cavity of the switching valve, with the bottom facing the water inlet. The blocking body blocks the upper drain outlet or the lower drain outlet by moving up and down. The floating self-locking body is movably installed in the blocking body, and a self-locking structure is provided between the blocking body and the blocking body. In the initial state, the water inlet and the upper water outlet are connected, the blocking body is located at the bottom and blocks the lower drain outlet, the floating self-locking body is located at the bottom of the moving range under the action of gravity, and the self-locking structure forms a locked state; When the switching valve is opened to water for the first time, the blocking body moves upward under the impact of water inflow from the water inlet, and keeps blocking the lower drain outlet under the action of the self-locking structure; When the switching valve stops water for the first time, the blocking body moves downward under the action of gravity, and the floating self-locking body moves under the action of buoyancy and unlocks the self-locking structure; The switching valve is opened for the second time, and the blocking body moves upward under the impact of water inflow from the water inlet, opens the lower drain outlet, and blocks the upper drain outlet; When the switching valve stops water supply for the second time, the blocking body and the floating self-locking body return to their initial states.

9. A water tank flushing system according to claim 8, characterized in that: The blocking body is provided with a horizontal mounting hole, the floating self-locking body is movably installed in the mounting hole, and one end is provided with a limiting protrusion extending out of the mounting hole, the interior of the switching valve is provided with a limiting groove opposite to the limiting protrusion, the size of the limiting groove in the vertical direction is larger than the limiting protrusion, and the limiting protrusion and the limiting groove constitute the self-locking structure.

10. A water tank flushing system according to claim 9, characterized in that: The floating self-locking body is provided with a buoyancy groove with an opening facing downward; the bottom end of the floating self-locking body and the side opposite to the limiting protrusion are rotatably installed in the blocking body, or the floating self-locking body is slidably installed in the mounting hole through an inclined track, and the farther the track is upward, the farther it is from the limiting groove.

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