Waterway switching structure and toilet

Abstract

This invention relates to a water circuit switching structure and a toilet, characterized by comprising a water tank, a float, and a limiting block. The water tank has an inlet, a first outlet, and a second outlet. The float is movably positioned between the inlet, the first outlet, and the second outlet. The limiting block is located inside the water tank. When water enters through the inlet, the limiting block restricts the float to a first position, connecting the inlet to the first outlet. When water stops flowing through the inlet, the limiting block releases the float, and the float moves to a second position under buoyancy, resuming water supply to the inlet and maintaining the float in the second position, connecting the inlet to the second outlet. This invention has the following advantages: 1. It reduces reliance on a motor, reducing the occurrence of malfunctions. 2. The switching structure is simple, stable, and reliable, offering significant cost advantages. 3. It has a wide range of applications.

Description

Technical Field

[0001] This invention relates to the field of sanitary ware, and more particularly to a water circuit switching structure and a toilet. Background Technology

[0002] Existing smart toilet flushing control methods typically involve the following types:

[0003] 1. Tap water is directly connected to the auxiliary flush and face flush of the toilet, and the auxiliary flush and face flush are implemented by controlling the pulse valve. Such as the "flush mechanism of intelligent toilet" disclosed in invention patent CN201687065U.

[0004] 2. A water tank is pre-installed inside the toilet. Water is drawn by a pump and then directed to the auxiliary flush and face brush by a motor-controlled reversing valve. As disclosed in invention patent CN214999571U, "A reversing valve".

[0005] 3. A water tank is pre-installed inside the toilet. Water is drawn by a pump and then used in conjunction with a reversing valve that controls the water level in the tank to perform auxiliary flushing and surface flushing of the toilet. As disclosed in invention patent CN 116122390 A, "A toilet flushing control system, flushing control method and toilet".

[0006] However, the above-mentioned flushing control methods either rely on motors or have relatively complex structures, resulting in low stability, reliability, and cost-effectiveness.

[0007] In order to solve the above problems, the inventors hereby propose the following solution. Summary of the Invention

[0008] The purpose of this invention is to provide a water path switching structure and a toilet to simplify the existing toilet flushing structure and reduce production costs.

[0009] To achieve the above objectives, the technical solution of the present invention is as follows:

[0010] A water circuit switching structure includes a water tank, a float, and a limiting block. The water tank has an inlet, a first outlet, and a second outlet. The float is movably positioned between the inlet, the first outlet, and the second outlet. The limiting block is located inside the water tank. When water enters through the inlet, the limiting block restricts the float to the position of the second outlet, connecting the inlet to the first outlet. When water stops flowing through the inlet, the limiting block releases the float, and the float moves to the position of the first outlet under buoyancy, resuming water supply to the inlet and maintaining the float at the first outlet position. At this time, the inlet connects to the second outlet.

[0011] Preferably, the water tank includes a body and a top cover that is sealed to the body, wherein the first water outlet is located on the top cover, the water inlet is located on the side of the body, and the second water outlet is located at the bottom of the body.

[0012] Preferably, the limiting block is pivotally connected to the upper cover.

[0013] Preferably, the limiting block has a locking protrusion, and the float has a locking groove on the side opposite to the limiting block.

[0014] Preferably, the inner side of the main body is provided with a slide rail, and the float is provided with a slide groove that cooperates with the slide rail.

[0015] Preferably, the water inlet is connected to a water supply source via a water pump.

[0016] Preferably, the first water outlet is connected to the face flush port of the toilet, and the second water outlet is connected to the auxiliary flush port of the toilet.

[0017] The present invention also provides another technical solution:

[0018] A water circuit switching structure includes a water tank, a float, a limiting block, and a one-way valve. The water tank has an inlet, a first outlet, a second outlet, and an inner cavity. The first outlet is connected to a water guide pipe. The one-way valve is provided between the water guide pipe and the inlet channel. The float is located in the inner cavity of the water tank between the inlet, the first outlet, and the second outlet. The limiting block is provided on the inner wall of the water tank opposite to the inlet.

[0019] Preferably, the limiting block has a trapezoidal inclined surface protruding from the inner wall, and the inner end face of the T-shaped inclined surface extends beyond the opposite side end face of the water tank when it is in a stable state at the second outlet.

[0020] The present invention also provides another technical solution:

[0021] A water circuit switching structure is characterized by comprising a water tank and a float. The water tank is provided with an inlet, a first outlet, and a second outlet. The float is movably positioned between the inlet, the first outlet, and the second outlet. When water enters through the inlet, the dynamic water pressure at the inlet limits the float to the position of the second outlet, thus connecting the inlet to the first outlet. When water is stopped at the inlet, the dynamic water pressure is released, and the float, driven by buoyancy, moves to the position of the first outlet, supplying water to the inlet again, thus maintaining the float at the position of the first outlet. At this time, the inlet is connected to the second outlet.

[0022] Accordingly, the present invention also provides a toilet, including a water path switching structure as described in any of the above claims.

[0023] The water path switching structure and toilet of the present invention have the following beneficial effects:

[0024] 1. It can reduce dependence on motors and reduce the occurrence of failures.

[0025] 2. The switching structure is simple, the operation is stable and reliable, and it has significant cost advantages.

[0026] 3. As a water circuit switching structure, the inlet can be switched on and off by a water pump or solenoid valve. By controlling the opening time of the inlet through a program, different control methods can be achieved, such as continuous upward water output, continuous downward water output, or alternating upward and downward water output, which has a wide range of applications. Attached Figure Description

[0027] Figure 1 This is a perspective view of the overall structure of the first embodiment of the present invention.

[0028] Figure 2 This is an exploded view of the main structure of the first embodiment of the present invention.

[0029] Figure 3 This is a first-state cross-sectional view of the main structure of the first embodiment of the present invention.

[0030] Figure 4 This is a cross-sectional view of the main structure in the second state according to the first embodiment of the present invention.

[0031] Figure 5 This is a cross-sectional view of the main structure in the third state according to the first embodiment of the present invention.

[0032] Figure 6 This is a partial cross-sectional view of the invention applied to a toilet.

[0033] Figure 7 This is a first-state sectional view of the main structure of the second embodiment of the present invention.

[0034] Figure 8 This is a cross-sectional view of the main structure in the second state according to the second embodiment of the present invention.

[0035] Figure 9 This is a first-state cross-sectional view of the main structure of the third embodiment of the present invention.

[0036] Figure 10 This is a cross-sectional view of the main structure in the second state according to the third embodiment of the present invention.

[0037] Figure 11 This is a longitudinal sectional view of the main structure in the first state according to the fourth embodiment of the present invention.

[0038] Figure 12 This is a first-state cross-sectional view of the main structure according to the fourth embodiment of the present invention.

[0039] Figure 13 This is a longitudinal sectional view of the main structure in the first state according to the fourth embodiment of the present invention.

[0040] Figure 14 This is a cross-sectional view of the second state of the main structure according to the fourth embodiment of the present invention. Detailed Implementation

[0041] The technical solution and beneficial effects of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] Example 1

[0043] like Figure 1 , Figure 2 and Figure 6 As shown, a water circuit switching structure and toilet include a water tank 1, a float 2 and a limiting block 3.

[0044] The water tank 1 is equipped with an inlet 101, a first outlet 102, and a second outlet 103. Specifically, the water tank 1 includes a body 11 and a top cover 12, with the body 11 and the top cover 12 sealed together. The first outlet 102 is located on the top cover 12 and connects to the toilet's face flush 5. The inlet 101 is located on the side of the body 11 and is connected to a water source via a water pump 4. The second outlet 103 is located at the bottom of the body 11 and connects to the toilet's auxiliary flush 6.

[0045] The float 2 is movably positioned between the inlet 101, the first outlet 102, and the second outlet 103. The inner side of the main body 11 is provided with evenly distributed slide rails 104, and the float 2 is provided with a sliding groove 21 that cooperates with the slide rails 104.

[0046] The limiting block 3 is pivotally mounted inside the water tank 1. Specifically, the upper end of the limiting block 3 is provided with a pivot 31, and the inner side of the upper cover 12 is provided with a shaft hole near the water flow channel of the first outlet 102. The limiting block 3 is pivotally connected to the shaft hole of the upper cover 12 through the pivot 31. The lower end of the limiting block 3 is provided with a locking protrusion 32, and the opposite side of the float 2 and the limiting block 3 is provided with a locking groove 22. In order to enable the limiting block 3 to quickly release its control over the float 2 when the water supply is stopped, the limiting block 3 is eccentric, offset, or deflected. As a preferred embodiment, an elastic reset member can also be provided between the limiting block 3 and the float 2. This elastic reset member can be integrally formed on the limiting block 3, or it can be a reset spring provided between the limiting block 3 and the float 2.

[0047] Using the above structure, the float 2 can be controlled to move between the first outlet 102 and the second outlet 103 by controlling the opening and closing of the water pump 4. Before the water pump is turned on, in the initial state, as follows... Figure 3 As shown, the float 2 blocks the second outlet 103, and the locking protrusion 32 of the limiting block 3 aligns with the locking groove 22 of the float 2; when the water pump 4 is turned on, the float 2 is simultaneously subjected to the buoyancy of the water (F). 浮筒 ) and gravity (denoted as G) 浮筒 Although at this time, F 浮筒 >G 浮筒 However, the dynamic water pressure from the inlet 101 pushes the limiting block 3 closer to the float 2, locking and limiting the float 2 to prevent it from floating. At this time, the inlet 101 connects to the first outlet 102, realizing the toilet's face flush. With a water supply of 40L / MIN, after 4 seconds of face flushing, the water pump 4 is turned off. At this time, the water tank 1 is full of water. Figure 4 As shown, the dynamic water pressure acting on the limit block 3 disappears, and the limit block 3 springs open. At this time, due to F 浮筒 >G 浮筒 Under the buoyancy of the water, float 2 rises and blocks the first outlet 102. After a set time of 0.1 seconds, water pump 4 is restarted. Figure 5 As shown, under the dynamic pressure of water, the locking protrusion 32 on the limiting block 3 is engaged with the bottom of the float 2, and the water inlet 101 is connected to the second water outlet 103 to achieve toilet flushing assistance, with the time controlled at 5 seconds. When the time is up, the water in the second water outlet 103 is basically emptied, and the float returns to the position of the second water outlet 103 under the action of gravity.

[0048] This invention enables the float to switch back and forth between the first outlet 102 and the second outlet 103 in a purely mechanical manner. It has a simple structure, strong practicality, and obvious cost advantages.

[0049] It should be noted that in the above embodiments, the limiting block is not necessary, allowing the float to be subjected to dynamic pressure F. 水 The frictional force generated on the pontoon is denoted as f. 浮筒 When f is satisfied 浮筒 >F 浮筒 -G 浮筒 At that time, the limit block 3 is not required.

[0050] Example 2

[0051] like Figure 7 and Figure 8 As shown, a water circuit switching structure and toilet include a water tank 1, a float 2, a limit block 3A, and a one-way valve 4.

[0052] The water tank 1 has an inlet 101, a first outlet 102, a second outlet 103, and an inner cavity 104. The inlet 101 is connected to the water supply source via a solenoid valve. The first outlet 102 is located at the top of the water tank, connected to a water pipe 13, and then connected to the toilet's face flush 5 via the water pipe 13. The second outlet 103 is located at the bottom of the water tank 1, connected to the toilet's auxiliary flush 6. A one-way valve 14 is installed between the water pipe 13 and the inlet 101. A float 2 is located in the inner cavity 104 of the water tank 1 between the inlet 101, the first outlet 102, and the second outlet 103.

[0053] The water tank 1 has a limiting block 3A on its inner wall opposite to the inlet 101. The limiting block 3A has a trapezoidal inclined surface 31A protruding from the inner wall. The inner end face 32A of the trapezoidal inclined surface 31A extends beyond the opposite side end face 21 of the water tank 1 when it is in a stable state at the second outlet 103, denoted as L. The inclination angle of the trapezoidal inclined surface 31A is preferably controlled between 50 and 80 degrees, and the range of L is controlled between 0.5 and 1 mm.

[0054] Using the above structure, the float 2 can be controlled to move between the first outlet 102 and the second outlet 103 by controlling the opening and closing of the electromagnetic switch valve. Before the electromagnetic switch valve is opened, in the initial state, as follows... Figure 7 As shown, float 2 blocks the second outlet 103, and the inward-facing side end 31A of the limiting surface 3A extends beyond the opposite side end 21 of the water tank 1. When the solenoid valve is opened, the dynamic water pressure from the inlet 101 exerts an inward thrust on float 2. At the same time, because the limiting surface 31A limits float 2, float 2 continues to block the second outlet 103, while the inlet 101 connects to the first outlet 102. At this time, check valve 4 is closed. After a period of time, the solenoid valve closes, the thrust generated by the dynamic water pressure acting on float 2 is released, check valve 4 opens, blocking the siphon phenomenon between inlet 101 and the first outlet 102. Float 2 rises under the buoyancy of the water and blocks the first outlet 102. The solenoid valve is opened again after a set time, and inlet 101 connects to the second outlet 103.

[0055] like Figure 8 As shown, during the aforementioned waterway switching process, when the float 2 moves to the first outlet 102, the float 2 is divided into an upper chamber and a lower chamber, with the horizontal plane where the lowest point of the bottom of the float 2 is located as the boundary. The volume of the upper chamber is denoted as V1, and the volume of the float 2 is denoted as V. 浮筒 The remaining space in the water tank, i.e., the lower chamber, has a volume of V2. To minimize potential energy loss after the water flows through water tank 1, V needs to be... 浮筒 The ratio of V1 to V1 should be controlled between 0.8 and 0.9, while the ratio of the maximum water passage area of ​​the lower chamber to the cross-sectional area of ​​the inlet should be between 1.1 and 1.5 for optimal performance.

[0056] The time interval between the movement of the float 2 from the second outlet 103 to the first outlet 102 should preferably not exceed 0.5s in order to better connect the potential energy of the surface water. When the time is between 0.5s and 1s, the potential energy of the water will be lost by about 30%.

[0057] Example 3

[0058] like Figure 9 and Figure 10 As shown, a water circuit switching structure and toilet include a water tank 1, a float 2 and a limiting block 3.

[0059] The water tank 1 is equipped with an inlet 101, a first outlet 102, a second outlet 103, and an inner cavity 104. Specifically, the water tank 1 includes a body 11 and a top cover 12, with the body 11 and the top cover 12 sealed together. The first outlet 102 is located on the top cover 12 and connects to the toilet's face flush 5. The inlet 101 is located on the side of the body 11 and connects to a water supply source via a water pump 4. The second outlet 103 is located at the bottom of the body 11 and connects to the toilet's auxiliary flush 6. A positioning ring 16 is provided at the bottom of the inner cavity 104, surrounding the second outlet. The float 2 has a roughly prismatic longitudinal cross-section and is movably positioned between the first outlet 102 and the second outlet 103.

[0060] The limiting block 3 is oscillatingly positioned between the water inlet 101 channel and the inner cavity 104 of the water tank 1.

[0061] Using the above structure, the float 2 can be controlled to move between the first outlet 102 and the second outlet 103 by controlling the opening and closing of the water pump 4. Before the water pump is turned on, in the initial state, as follows... Figure 9 As shown, float 2 blocks the second outlet 103; when water pump 4 is turned on, dynamic water pressure pushes limit block 3 to apply pressure to float 2, preventing float 2 from floating, and inlet 101 connects to first outlet 102; as Figure 10 As shown, when water pump 4 is turned off, the water pressure acting on limit block 3 disappears, and float 2 rises under the buoyancy of the water, blocking the first outlet 102. Water pump 4 is turned on again according to the set time. Under the pressure of the water, limit block 3 lifts the bottom of float 2 upward, and inlet 101 connects to the second outlet 103.

[0062] Example 4

[0063] like Figures 11 to 14 As shown, a water circuit switching structure includes a water tank 1, a float 2, a limit block 3, and a one-way valve 4.

[0064] The water tank 1 is provided with an inlet 101, a first outlet 102, a second outlet 103 and an inner cavity 104. The float 2 is located in the inner cavity 104 of the water tank 1 between the inlet 101, the first outlet 102 and the second outlet 103.

[0065] A ring-shaped water inlet channel R is provided around the water tank 1 at the water inlet 101. An inlet hole 15 is provided on the inner wall of the inner cavity 104 communicating with the water inlet channel R, and the inlet hole 15 is located directly opposite the water inlet 101. A positioning ring 16 is provided around the bottom of the inner cavity 104 around the second water outlet 103. A limiting block 3 is provided between the water inlet 101 channel and the positioning ring 16 of the inner cavity 104.

[0066] Using the above structure, the float 2 can be controlled to move between the first outlet 102 and the second outlet 103 by controlling the opening and closing of the water pump 4. Before the water pump 4 is turned on, in the initial state, as... Figure 11 and Figure 12 As shown, under the action of gravity, the float 2 blocks the second outlet 103. When the water pump 4 is turned on, the water flow in the inlet 15 generates a thrust on the float 2. At the same time, the dynamic water pressure of the inlet 101 generates a counter-pressure thrust on the limiting block 3, so that the float 2 is limited to the second outlet 103. The inlet 101 is connected to the first outlet 102; Figure 13 and Figure 14 As shown, when the water pump 4 is turned off, the thrust acting on the float 2 is released, and the float 2 rises under the buoyancy of the water to block the first outlet 102. The water pump 4 is turned on again according to the set time, and the inlet 101 is connected to the second outlet 103.

[0067] This invention enables the float to switch back and forth between the first outlet 102 and the second outlet 103 using a purely mechanical method. It features a simple structure, strong practicality, and significant cost advantages. Furthermore, by controlling the start time of the water pump 4 through a program, different control methods can be achieved, such as continuous upward flushing, continuous downward flushing, or alternating upward and downward flushing, thus offering a wide range of applications.

[0068] The above embodiments are merely illustrative of the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any improvements or equivalent substitutions made based on the technical concept proposed in this invention shall fall within the scope of protection of this invention.

Claims

1. A waterway switching structure, characterized in that, The device includes a water tank, a float, and a limiting block. The water tank comprises a main body and a top cover sealed to the main body. The water tank has an inlet, a first outlet, and a second outlet. The inlet is located on the side of the main body, the first outlet is located on the top cover and connected to the toilet's face flush port, and the second outlet is located at the bottom of the main body and connected to the toilet's auxiliary flush port. The float is movably positioned between the inlet, the first outlet, and the second outlet. The limiting block is located inside the water tank and pivotally connected to the top cover. When water enters through the inlet, the limiting block restricts the float to the position of the second outlet, connecting the inlet to the first outlet. When water stops flowing through the inlet, the limiting block releases the float, and the float moves to the position of the first outlet under buoyancy, resuming water supply to the inlet and maintaining the float at the first outlet position. At this time, the inlet connects to the second outlet.

2. The waterway switching structure as described in claim 1, characterized in that, The limiting block is provided with a locking protrusion, and the float is provided with a locking groove on the side opposite to the limiting block.

3. The waterway switching structure as described in claim 1, characterized in that, The inner side of the main body is provided with a slide rail, and the float is provided with a slide groove that cooperates with the slide rail.

4. A waterway switching structure, characterized in that, The system includes a water tank, a float, a limiting block, and a one-way valve. The water tank has an inlet, a first outlet, a second outlet, and an inner cavity. The inlet is connected to a water source. The first outlet is located at the top of the water tank and connected to a water pipe leading to the toilet's face flush port. The second outlet is located at the bottom of the water tank and connected to the toilet's auxiliary flush port. The one-way valve is located between the water pipe and the inlet channel. The float is located within the water tank cavity between the inlet, first outlet, and second outlet. The limiting block is provided on the inner wall opposite the inlet. The limiting block has a trapezoidal inclined surface protruding from the inner wall. The inner end face of the trapezoidal inclined surface extends beyond the opposite side end face of the water tank when it is in a stable state at the second outlet. When water enters through the inlet, the dynamic water pressure of the inlet, together with the limiting block, limits the float to the position of the second outlet, so that the inlet is connected to the first outlet. When the water inlet stops flowing, the dynamic water pressure is released, and the float is driven by buoyancy to move to the position of the first outlet. When water is supplied to the inlet again, the inlet is connected to the second outlet.

5. A waterway switching structure, characterized in that, The device includes a water tank and a float. The water tank comprises a main body and a top cover sealed to the main body. The water tank has an inlet, a first outlet, and a second outlet. The float is movably positioned between the inlet, the first outlet, and the second outlet. The inlet is located on the side of the main body, the first outlet is located on the top cover and connected to the toilet's face flush port, and the second outlet is located at the bottom of the main body and connected to the toilet's auxiliary flush port. When water enters through the inlet, the dynamic water pressure at the inlet limits the float to the position of the second outlet, thus connecting the inlet to the first outlet. When water stops flowing through the inlet, the dynamic water pressure is released, and the float, driven by buoyancy, moves to the position of the first outlet, allowing water to flow back to the inlet, keeping the float at the first outlet position. At this time, the inlet connects to the second outlet.

6. A toilet, characterized in that, Includes a waterway switching structure as described in any one of claims 1 to 5.

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