Waterway switching system suitable for pedestal pan water tank

Abstract

The utility model discloses a waterway switching system suitable for a water tank of a pedestal pan, which comprises a main body provided with a water passing cavity, a water inlet channel and at least two water outlet channels, the water inlet channel and the at least two water outlet channels are communicated with the water passing cavity, and one water outlet channel and the water inlet channel are positioned below the other water outlet channel; the water sealing structure comprises a water stopping piece; the water stop piece is movably arranged in the water passing cavity; the water stop piece moves downwards to stop at a first position to block the water outlet channel below through the gravity of the water stop piece, or moves upwards to stop at a second position to block the water outlet channel above under the action of buoyancy force formed when the water passing cavity is filled with water. The stop mechanism is arranged in the water passing cavity; the stop mechanism comprises a water baffle; according to the technical scheme, the toilet bowl is simple in structure, easy and convenient to manufacture, easy to implement and low in cost, and the problems that the main flushing water or flushing water displacement of an existing toilet bowl is difficult to adjust by itself, and the switching response of the two functions is slow are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bathrooms, and in particular to a water channel switching system suitable for a toilet water tank. Background Art

[0002] Existing toilets mainly use the water level in the water tank to drive the float to rise and fall to control the function switching of the main flushing water and flushing water of the toilet; for example, in publication number CN220336022U, the float is placed outside the switching system and is in direct contact with the water flow in the water tank. When the water pump works to reduce the water flow inside the water tank, the lowering of the water level will drive the float to rise and fall, and the switching system movement is controlled by a linkage transmission rod to realize the function switching of the main flushing water and flushing water.

[0003] However, this switching system has certain shortcomings, as follows: First, the continuous discharge volume of the main flush or flushing water mainly depends on the predetermined design position of the float, that is, the height of the float must be adjusted during installation. This structure is extremely troublesome for users who do not know how to disassemble and assemble, especially for smart toilets with concealed water tanks. It is even more difficult to re-adjust later, and disassembly and assembly is time-consuming and labor-intensive; second, there is usually only one float in the water tank, which controls the toilet to complete the cycle at one time, and performs the main flush, brush ring flush, and finally the water inlet valve tank replenishment in sequence. The main flush and brush ring flush functions cannot be switched quickly in real time, and cannot be quickly adapted to different usage scenarios; third, the volume of the float in the water tank is usually large, which occupies too much space inside the water tank.

[0004] Therefore, the existing water channel switching system for toilet water tanks needs to be further improved. Utility Model Content

[0005] The utility model provides a water channel switching system suitable for a toilet water tank, which has a simple structure, is easy to manufacture, easy to implement and low in cost. It solves the problem that the main flushing or flushing water discharge volume of the existing toilet is difficult to adjust automatically, and the switching response between the two functions is slow. The main technical solutions are as follows:

[0006] A water channel switching system suitable for a toilet water tank, the water channel switching system comprising: a main body, which is formed with a water flow cavity and a water inlet and at least two water outlets connected to the water flow cavity, wherein one of the water outlets and the water inlet are both located below the other water outlet; a water sealing structure, which comprises a water stop; the water stop is movably arranged in the water flow cavity; the water stop moves downward by its own weight to stop at a first position to block the water outlet below, or under the buoyancy formed by the water in the water flow cavity, Move upward and stop at the second position to block the upper water outlet; a stopping mechanism is installed in the water flow chamber; the stopping mechanism includes a water baffle, which is rotatably provided on the main body, so as to be used to be affected by the water flow entering the water channel, flip and open the water inlet and abut and connect with the buckle part opened at the lower end of the water stop, limit the water stop to the first position so that the water inlet continues to conduct the water outlet above, or is used to flip and close the water inlet so that the water stop can be moved to the second position.

[0007] Preferably, the water inlet extends to the lower end of the water stop member, so that the water outlet of the water inlet is close to the center position of the bottom of the water stop member.

[0008] Preferably, the axis of the water inlet is arranged at an angle to a preset moving trajectory of the water stop member when switching from the first position to the second position.

[0009] Preferably, the cross section of the water outlet of the water inlet is inclined, and the water baffle forms an inclined seal with the water outlet of the water inlet.

[0010] Preferably, the cross section of the water outlet of the water inlet is inclined.

[0011] Preferably, the water baffle is hinged to the main body and is provided at the water outlet of the water inlet; the water baffle can automatically flip over under the action of a reset member provided thereon to block the water outlet of the water inlet.

[0012] Preferably, the reset member is configured as a torsion spring provided on the hinge shaft of the water baffle, and the torsion spring is sleeved and installed on the hinge shaft of the water baffle, so that the water baffle can be rotated under force to block the water outlet of the water inlet.

[0013] Preferably, the resetting member is configured as a counterweight block provided on the surface of the water baffle, and the water baffle is flipped toward the water outlet of the water inlet by the vertical gravity force of the counterweight block.

[0014] Preferably, the water-stopping member includes a water-sealing base, a water-sealing sleeve and a water-sealing pad provided on the top of the water-sealing sleeve corresponding to the upper water outlet; an open end of the water-sealing sleeve is sleeved on the water-sealing base.

[0015] Preferably, it further includes a water guide body connected to the water inlet, the water guide body has a water guide port and a water pipe inside, a water guide cavity is formed between the water guide port and the water pipe, the water guide port is connected to the water inlet of the water inlet; the axis of the water pipe forms an angle with the axis of the water guide port, and the water outlet height of the water pipe is higher than the height of the water guide port.

[0016] From the above description of the present invention, it can be seen that compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention provides a water channel switching system suitable for a toilet tank, which has a simple structure, is easy to manufacture, easy to implement and has low cost, and solves the problem that the main flushing water or flushing water discharge volume of the existing toilet is difficult to adjust automatically, and the switching response of the two functions is slow. In the technical solution of the present invention, the upper water outlet and the lower water outlet are respectively the brush ring water channel and the main flushing water channel. Under normal conditions, the water stop can automatically move to the first position under the influence of its own gravity to block the lower water outlet. When the water cavity is filled with water to form buoyancy, it can automatically move to the second position to block the upper water outlet. Therefore, in actual control, it is only necessary to control the water flow in the water channel to drive the water baffle to flip, so that the functions of the brush ring water channel and the main flushing water channel can be switched at will. It abandons the traditional float control method, solves the disadvantages brought by it, and can switch functions in real time, and the discharge volume can be controlled automatically, which is convenient and fast.

[0018] (2) In the present technical solution, the water inlet extends to the very bottom end of the water stop, and its outlet is close to the center position of the bottom of the water stop, so that the water flow discharged from the water inlet can directly act on the water baffle to drive it to flip over; on the contrary, if the outlet of the water inlet is far away from the water baffle, the linkage response speed of the water baffle will be slow, and it will not be able to quickly connect with the buckle part opened at the lower end of the water stop, and the water flow cavity will easily be filled with water to generate buoyancy, which will drive the water stop to move directly upward, and the water outlet above will not be able to drain water, and the brush ring flushing function will not be realized. If the structural design is simpler, the stability of the function can be guaranteed.

[0019] (3) The axis of the water inlet is set at an angle to the preset moving trajectory of the water stop when it switches from the first position to the second position. In this way, the impact force generated by the water flow discharged from the water inlet will not directly act on the water stop, driving the water stop to move along the moving trajectory. This design method can form a certain buffer to prevent the water stop from being affected by other external forces to switch functions, thereby ensuring the stability of the switching function.

[0020] (4) The water outlet direction of the water inlet is set in the same direction as the water inlet direction of the lower end water outlet. In this way, when the lower end water outlet is opened, the water discharged from the water inlet can quickly impact the lower end water outlet, realizing rapid drainage, increasing the impact force of the water flow of the main flush, and enhancing the cleaning function of the toilet.

[0021] (5) The reset member is a mechanical member that controls the water baffle to automatically close the water flow into the water channel. It can be automatically realized without any external power supply or external force. The mechanical structure is simpler and the manufacturing difficulty is also lower.

[0022] (6) The height of the water outlet of the water pipe is higher than that of the water inlet, so that the water flow entering the waterway will generate greater water flow impact force, thereby improving water supply efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0025] Figure 2 Schematic diagram of the explosion of the embodiment of the utility model Figure 1 ;

[0026] Figure 3 Schematic diagram of the explosion of the embodiment of the utility model Figure 2 ;

[0027] Figure 4 This is a schematic diagram of the state where the water stop member of the embodiment of the utility model is located in the first position;

[0028] Figure 5 This is a schematic diagram of the state of the water retaining plate of the embodiment of the utility model when it is turned over;

[0029] Figure 6 This is a schematic diagram of the water stop member of an embodiment of the utility model being located in the second position.

[0030] The description of the accompanying numbers is as follows: 1. Main body; 11. Water flow chamber; 12. Water inlet; 13. Water outlet; 21. Water stop; 21A. Buckle; 211. Water sealing base; 212. Water sealing sleeve; 213. Water sealing pad; 3. Stop mechanism; 31. Water baffle; 32. Resetting part; 4. Water guide body; 41. Water outlet; 42. Water pipe. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] In the claims, description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" is to distinguish different objects rather than to describe a specific order.

[0033] In the claims, specification and the above-mentioned drawings of the present utility model, unless otherwise expressly defined, directional words, such as the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present utility model.

[0034] In the claims, specification and the above drawings of the present utility model, unless otherwise clearly defined, if the terms "fixed connection" or "fixed connection" are used, they should be understood in a broad sense, that is, any connection method without any displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or elements.

[0035] In the claims, description and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0036] See Figures 1 to 6 .

[0037] This embodiment provides a water channel switching system for a toilet tank, which has a simple structure, is easy to manufacture, easy to implement and low cost, and solves the problem that the main flushing or flushing water discharge volume of the existing toilet is difficult to adjust automatically, and the switching response of the two functions is slow; see Figures 1 to 3 The waterway switching system mainly includes a main body 1, a water sealing structure and a stop mechanism 3; wherein:

[0038] Body 1, see Figure 4, which forms a water flow cavity 11 and a water inlet 12 communicating with the water flow cavity 11 and at least two water outlets 13, wherein one water outlet 13 and the water inlet 12 are both located below the other water outlet 13, that is, there are two water outlets 13 above and below, and the two water outlets 13 are arranged in parallel; the upper water outlet 13 is the brush ring water channel of the toilet, and the lower water outlet 13 is the main flushing water channel of the toilet. The two functions can be switched by the cooperation of the water sealing structure and the stop mechanism 3;

[0039] The water sealing structure includes a water stop 21; the water stop 21 is movably arranged in the water passage cavity 11. In this embodiment, the water stop 21 is slidable in the water passage cavity 11; the water stop 21 moves downward by its own gravity and stops at the first position (see Figure 4 ) blocks the outlet 13 below, or moves upward to the second position (see Figure 6 ) blocks the upper water outlet 13. Therefore, the working principle of the displacement of the water stop 21 in this embodiment is as follows: as long as water accumulates in the water passage 11, the water stop 21 will generate buoyancy in the water. Once the water passage 11 is empty, the water stop 21, unimpeded by any external forces, will automatically sink and move under the action of its own gravity. Thus, by controlling the amount of water accumulated in the water passage 11, the displacement of the water stop 21 can be indirectly controlled accordingly.

[0040] The stop mechanism 3 is installed in the water chamber 11; the stop mechanism 3 mainly includes a water baffle 31, which is rotatably (hinged) arranged on the main body 1 (the inner wall of the water chamber 11 of the main body 1 has a hinge hole), see Figure 5 , which is used to receive the water flow from the water channel 12, flip open the water channel 12 and connect with the buckle 21A opened at the lower end of the water stop 21, and limit the water stop 21 to the first position so that the water channel 12 continues to connect with the water outlet 13 above. Figure 6 , or used to flip and close the water inlet 12 so that the water stop 21 can move to the second position;

[0041] In this embodiment, the buckling portion 21A provided at the lower end of the water stop 21 is a clearance groove. When the water baffle 31 is turned over, it will enter the clearance groove and abut against the lower end of the water stop 21 to limit the position.

[0042] In this embodiment, when the water flow entering the water flow chamber 11 from the lower water inlet 12 is filled to a certain extent, if the water inlet 12 is suddenly closed at this time, the upper water outlet 13 will not be subjected to the impact force of the water flow, and the remaining water in the water flow chamber 11 will not be able to continue to be discharged to the upper water outlet 13. Since the water stop member 21 is in the first position to block the lower water outlet 13, a certain amount of water will accumulate in the water flow chamber 11 at this time. The water stop member 21 will move up under the buoyancy of the full water to block the upper water outlet 13, and the lower water outlet 13 will be opened.

[0043] See also Figures 4 to 6

[0044] In this embodiment, the water inlet 12 extends to the exact lower end of the water stop 21, so that the water outlet of the water inlet 12 is close to the bottom center of the water stop 21, so that the water flow discharged from the water inlet 12 can directly act on the water baffle 31 to drive it to flip over; on the contrary, if the water outlet of the water inlet 12 is far away from the water baffle 31, the linkage response speed of the water baffle 31 will be slow, and it will not be able to quickly connect with the buckle part 21A opened at the lower end of the water stop 21, and the water flow chamber 11 will easily be filled with water to generate buoyancy, driving the water stop 21 to move directly upward, and the water outlet 13 above will not be able to drain water, and the brush ring flushing function cannot be realized.

[0045] In this embodiment, the axis of the water inlet 12 is set at an angle to the preset moving trajectory of the water stop 21 when switching from the first position to the second position. In this way, the impact force generated by the water flow discharged from the water inlet 12 will not directly act on the water stop 21, driving the water stop 21 to move along the moving trajectory. This design method can form a certain buffer to prevent the water stop 21 from being affected by other external forces to switch functions.

[0046] In this embodiment, the water outlet direction of the water inlet 12 is set in the same direction as the water inlet direction of the lower end water outlet 13; so when the lower end water outlet 13 is opened, the water flow discharged from the water inlet 12 can quickly impact into the lower end water outlet 13, realizing rapid drainage and improving the water flow impact force of the main flushing.

[0047] In this embodiment, the cross section of the water outlet of the water inlet 12 is tilted, specifically tilted horizontally to the right; this reduces the flip angle of the water baffle 31 and makes the water baffle 31 and the water outlet of the water inlet 12 tilted and sealed, thereby improving the sealing performance.

[0048] In this embodiment, the water baffle 31 is hinged to the main body 1 (the main body 1 has a hinge hole), and is arranged at the outlet of the water inlet 12; the water baffle 31 can automatically flip under the action of the reset member 32 provided thereon to block the outlet of the water inlet 12. In this embodiment, the reset member 32 is mainly used as a counterweight block, see Figure 5 After the water baffle 31 is opened by the impact of the water flow, the water baffle 31 flips over at a certain angle; see Figure 6 When the water is not impacted by the current, the water baffle 31 is forced to flip toward the outlet of the water inlet 12 under the vertical gravity of the counterweight, closing the outlet of the water inlet 12. The installation method using the counterweight is simpler and more efficient. In other embodiments, the reset member 32 can also be configured as a torsion spring, which is mounted on the hinge shaft of the water baffle 31, so that the water baffle 31 can be forced to rotate to block the outlet of the water inlet 12.

[0049] In this embodiment, see Figure 2 The water stop 21 includes a water sealing base 211, a water sealing sleeve 212 and a water sealing pad 213 provided on the top of the water sealing sleeve 212 corresponding to the upper water outlet 13; Figure 4 One end of the water sealing sleeve 212 is sleeved on the water sealing base 211. The water sealing sleeve 212 has a cavity inside. The cavity can reduce a certain manufacturing cost, and the cavity structure can also make the water stop 21 more susceptible to the influence of water flow to generate buoyancy.

[0050] In this embodiment, see Figure 5 , it also has a water guide body 4 on the outside, which is connected to the water inlet of the water inlet 12. The water guide body 4 has a water guide port 41 and a water pipe 42 inside. A water guide cavity is formed between the water guide port 41 and the water pipe 42. The water guide port 41 is connected to the water inlet of the water inlet 12; the axis of the water pipe 42 forms an angle with the axis of the water guide port 41, and the height of the water outlet of the water pipe 42 is higher than the height of the water guide port 41. In this way, the water flow entering the water inlet 12 generates a greater water flow impact force, thereby improving the water supply efficiency.

[0051] In this embodiment, a water pump is installed at the water inlet end of the water pipe 42, and water can be transported into the water pipe 42 through the water pump.

[0052] In this embodiment, the entire water flow switching system is housed within the toilet water tank. Alternatively, it can be located outside the tank, using a pump to pump water from the external tank into the water inlet 12. These tanks typically include an inlet valve and a water level float. Water level fluctuations control the operation of the float, causing the inlet valve to replenish the tank. Therefore, in this embodiment, while abandoning the traditional water flow switching method involving a float-controlled lever, a separate float is provided to sense water level changes for tank replenishment. Of course, other sensing elements can also be used in other embodiments to sense water level changes and control the inlet valve to replenish water.

[0053] The working principle and use process of this utility model:

[0054] When installing, see Figure 2First, the opening of the water sealing sleeve 212 is placed on the water sealing base 211, and then the water sealing pad 213 is placed on the upper end of the water sealing sleeve 212 to complete the installation of the water stop 21; second, the water baffle 31 is buckled into the hinge hole on the main body 1 to complete the rotatable installation of the water baffle 31; third, the entire water stop 21 is installed inside the main body 1 to complete the sealing installation; fourth, the water guide body 4 is installed on the main body 1 so that the water guide port 41 is connected to the water inlet of the water inlet channel 12 to complete the installation. Figure 1 The product is installed as shown; finally, the entire water switching system is installed in the water tank of the toilet; the upper water outlet 13 is connected to the brush ring water pipe, the lower water outlet 13 is connected to the main flushing pipe, and the inlet end of the water pipe 42 of the water guide body 4 is installed with the water pump.

[0055] When using, see Figure 4 When the product is not in water, the water stop 21 is automatically located in the first position under the influence of its own gravity to block the water outlet 13 below, and the water baffle 31 is automatically flipped downward under the influence of the weight to close the water outlet of the water inlet 12;

[0056] See also Figure 5 When starting to use, first, the first control pump (not shown) works. When water flows into the water pipe 42 and reaches the highest height, the water flows downward through the water guide port 41 into the water inlet 12, generating sufficient impact force to open the water baffle 31 until the water baffle 31 is abutted against the buckle 21A opened at the lower end of the water stop member 21, so that the entire water stop member 21 is always limited and constrained in the first position, the lower water outlet 13 is continuously closed and the upper water outlet 13 is continuously opened. In this way, even if the entire water flow chamber 11 is filled with water, the buoyancy generated therein will not cause the water stop member 21 to float up to the second position, thereby achieving continuous flushing of the upper water outlet 13;

[0057] See also Figure 6 , the water pump is controlled to stop working for the first time, the water baffle 31 loses the impact force of the water flow entering the water inlet 12, and the water baffle 31 is automatically flipped downward by the gravity of the counterweight to close the water outlet of the water inlet 12; at this time, the upper water outlet 13 is still open and the lower water outlet 13 is still closed. The accumulated water inside the water passage 11 will generate buoyancy, driving the water stop 21 to slide to the second position, and the sealing gasket forms a seal with the upper water outlet 13. The corresponding upward movement of the water stop 21 also opens the lower water outlet 13;

[0058] Next, the water pump is controlled to operate for the second time. The water flowing into the water inlet 12 drives the water baffle 31 to flip open its opening, and water can continue to flow into the water outlet 13 below, realizing continuous main flushing. (At this time, because the water stop 21 moves up to the second position, even if the water baffle 31 flips over, it will not abut against the buckle 21A below the water stop 21. Thus, the water stop 21 will always be in the second position under the influence of buoyancy.)

[0059] Finally, the water pump is controlled to stop working for the second time, and the water baffle 31 flips over to close the water inlet 12; since the main flushing water is discharged through the lower outlet 13, when the water flow in the lower outlet 13 is drained, the accumulated water inside the water chamber 11 will continue to be discharged through the lower outlet 13 to achieve the water replenishment effect of the toilet.

[0060] During the above control process, an external water inlet valve (not shown) can be configured to continuously replenish the water tank, while the water pump can continue to pump water, continuously supplying water to the water channel 12. Therefore, as long as the water pump is not shut down during the drainage process of the upper or lower outlet channel 13, the brush ring flush and main flush can continue. If function switching is required, the water pump operation can be controlled. This utility model has a simple structure, is easy to manufacture, is easy to implement, and is low in cost. It solves the problem of existing toilets that the main flush or flushing water discharge volume is difficult to adjust automatically, and the switching response between the two functions is slow. In the technical solution of the present invention, the upper water outlet 13 and the lower water outlet 13 are respectively the brush circle water channel and the main flushing water channel. The water stop member 21 can automatically fall into position and move to the first position to block the lower water outlet 13 under the influence of its own gravity in normal state. When the water passage chamber 11 is filled with water to form buoyancy, it can automatically move to the second position to block the upper water outlet 13; therefore, in actual control, it is only necessary to control the water flow interruption of the water inlet channel 12 to drive the water baffle 31 to flip, so as to realize the arbitrary switching of the functions of the brush circle water channel and the main flushing water channel. It abandons the traditional float control method, solves the disadvantages brought by it, and can perform function switching in real time, and the drainage volume can be controlled by itself, which is convenient and fast.

[0061] The above description and embodiments are used to explain the scope of protection of the utility model, but do not constitute a limitation on the scope of protection of the utility model. Based on the enlightenment of the utility model or the above embodiments, modifications, equivalent replacements, or other improvements to the embodiments of the utility model or part of the technical features thereof that can be obtained by ordinary technicians in this field through logical analysis, reasoning, or limited experiments in combination with common knowledge, ordinary technical knowledge in this field and / or existing technology should be included in the scope of protection of the utility model.

Claims

1. A water channel switching system suitable for a toilet tank, characterized by: The water channel switching system comprises: a main body, which is formed with a water passage cavity, a water inlet channel communicating with the water passage cavity, and at least two water outlet channels, wherein one of the water outlet channels and the water inlet channel are both located below the other water outlet channel; The water-sealing structure includes a water-stop member; the water-stop member is movably disposed in the water-passing cavity; the water-stop member moves downward by its own weight to a first position to block the water outlet below, or moves upward by the buoyancy formed by the water in the water-passing cavity to a second position to block the water outlet above; A stopping mechanism is installed in the water flow chamber; the stopping mechanism includes a water baffle, which is rotatably arranged on the main body, so as to be affected by the water flow entering the water channel, flip open the water channel and abut against the buckle portion opened at the lower end of the water stop member, limit the water stop member to the first position so that the water channel continues to connect to the water outlet above, or is used to flip and close the water channel so that the water stop member can be moved to the second position.

2. A water channel switching system for a toilet tank according to claim 1, characterized in that: The water inlet extends to the lower end of the water stop member, so that the water outlet of the water inlet is close to the center position of the bottom of the water stop member.

3. A water channel switching system for a toilet tank according to claim 2, characterized in that: The axis of the water inlet is arranged at an angle to a preset moving trajectory of the water stop member when switching from the first position to the second position.

4. The water channel switching system for a toilet tank according to claim 1, characterized in that: The water outlet direction of the water inlet is arranged in the same direction as the water inlet direction of the lower end water outlet.

5. The water channel switching system for a toilet tank according to claim 1, characterized in that: The cross section of the water outlet of the water inlet is arranged to be inclined, and the water baffle and the water outlet of the water inlet form an inclined seal.

6. A water channel switching system for a toilet tank according to any one of claims 1 to 5, characterized in that: The water baffle is hinged to the main body and is arranged at the water outlet of the water inlet; the water baffle can automatically flip over under the action of a reset member provided thereon to block the water outlet of the water inlet.

7. A water channel switching system for a toilet tank according to claim 6, characterized in that: The reset member is configured as a torsion spring provided on the hinge shaft of the water baffle, and the torsion spring is sleeved and installed on the hinge shaft of the water baffle, so that the water baffle can be rotated under force to block the water outlet of the water inlet.

8. The water channel switching system for a toilet tank according to claim 7, characterized in that: The resetting member is configured as a counterweight block provided on the surface of the water baffle, and the water baffle is turned toward the water outlet of the water inlet by the vertical gravity force of the counterweight block.

9. The water channel switching system for a toilet tank according to claim 8, characterized in that: The water stop member includes a water sealing base, a water sealing sleeve and a water sealing pad arranged on the top of the water sealing sleeve corresponding to the upper water outlet; one end of the opening of the water sealing sleeve is sleeved on the water sealing base.

10. The water channel switching system for a toilet tank according to claim 6, characterized in that: It also includes a water guide body connected to the water inlet, the water guide body has a water guide port and a water pipe inside, a water guide cavity is formed between the water guide port and the water pipe, the water guide port is connected to the water inlet of the water inlet; the axis of the water pipe forms an angle with the axis of the water guide port, and the water outlet height of the water pipe is higher than the height of the water guide port.

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