Flushing switching device and closestool

Abstract

The utility model provides a flushing switching device and a closestool. The utility model relates to a flushing switching device, which comprises a shell, a first liquid inlet, a first liquid outlet and a second liquid outlet, the shell is provided with a first cavity, a first inlet, a first outlet and a second outlet, the first inlet, the first outlet and the second outlet are all communicated with the first cavity, the first inlet is used for introducing liquid into the first cavity, and the first outlet is positioned above the second outlet; the buoy is provided with a second cavity, the buoy is movably arranged in the first cavity so that the buoy can have a first position and a second position, and the first position is located above the second position. Therefore, the flushing switching device has the advantages of being simple in structure, high in durability and high in switching speed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bathroom, concretely relates to a flushing switching device and closestool. BACKGROUND

[0002] The closestool flushing is directly connected with the auxiliary flushing of the closestool and the basin flushing by tap water, and the auxiliary flushing and the basin flushing are implemented on the closestool by controlling the reversing valve and other devices. The reversing valve in the related art depends on the motor or has a relatively complex structure, and the stability, reliability and cost performance are not high, and the reversing speed is slow. SUMMARY

[0003] The utility model discloses at least one of the technical problems in the related art is solved to some extent. To this end, the embodiment of the utility model provides a flushing switching device and closestool.

[0004] The flushing switching device of the utility model embodiment comprises:

[0005] The shell has a first cavity, a first inlet, a first outlet and a second outlet, the first inlet, the first outlet and the second outlet are communicated with the first cavity, the first inlet is used to introduce liquid into the first cavity, and the first outlet is located above the second outlet.

[0006] The float has a second cavity, the float is movably arranged in the first cavity to have a first position and a second position, the first position is located above the second position, in the first position, the float is adjacent to the first outlet to make the discharge amount of the second outlet greater than the discharge amount of the first outlet, in the second position, the float is adjacent to the second outlet to make the discharge amount of the first outlet greater than the discharge amount of the second outlet, and the second cavity is communicated with the first cavity in the process that the float moves from the first position to the second position.

[0007] The liquid introduced into the first cavity through the first inlet can impact the float located in the second position and limit the float in the second position.

[0008] After stopping introducing liquid into the first inlet, the float located in the second position can float to the first position by the liquid in the first cavity.

[0009] The liquid introduced into the first cavity through the first inlet can limit the float located in the first position in the first position.

[0010] After stopping introducing liquid into the first inlet, the float located in the first position falls to the second position.

[0011] Therefore, the flushing switching device has the advantages of simple structure, high durability and fast switching speed.

[0012] In some embodiments, the float includes

[0013] a cylinder body having a second opening, the second opening being in communication with the second cavity;

[0014] a switch member movably arranged on the cylinder body, the switch member being used for covering the second opening and defining the second cavity with the cylinder body, the second cavity being in communication with the first cavity through the second opening during movement of the float from the first position to a second position.

[0015] In some embodiments, the first outlet is located at the top of the first cavity, and the second outlet is located at the bottom of the first cavity;

[0016] the second opening is arranged opposite to the first inlet in a first direction;

[0017] the switch member is rotatably arranged on the cylinder body, the switch member being plate-shaped, the switch member being located between the first inlet and the second opening in the first direction, the switch member having a first side and a second side opposite to each other in the first direction, the first side facing the first inlet, the second side facing the second opening, an extension direction of a rotation axis of the switch member being a second direction, any two of the first direction, the second direction and an up-down direction being perpendicular to each other;

[0018] liquid flowing into the first cavity through the first inlet can impact the switch member of the float in the second position, so that the switch member abuts against the cylinder body and covers the second opening.

[0019] In some embodiments, a first rotation shaft is arranged at the top of the cylinder body, the first rotation shaft being adjacent to the second opening in the first direction, and the switch member is rotationally connected with the first rotation shaft;

[0020] a baffle is arranged at the top of the switch member and above the cylinder body, the baffle being capable of driving the switch member to rotate relative to the cylinder body;

[0021] when the float reaches the first position, the baffle abuts against the first outlet and drives the switch member to rotate in a direction away from the second opening;

[0022] during falling of the float in the first position to the second position, the second cavity is in communication with the first cavity through a gap between the second opening and the switch member, so that the second cavity can contain liquid.

[0023] In some embodiments, the included angle between the thickness direction of the baffle and the thickness direction of the switch piece is greater than 90°;

[0024] The cylinder body has a sealing groove facing the first inlet in the first direction, and the second side surface of the switch piece is provided with a protruding part that can extend into the sealing groove;

[0025] The top of the baffle is provided with a sealing gasket, and the sealing gasket covers the first outlet when the float reaches the first position;

[0026] The first side surface is provided with a flow guide plate extending in the second direction;

[0027] When the float is in the second position, the size ratio of the first part above the flow guide plate to the second part below the flow guide plate in the up-down direction is 1:(0-0.2);

[0028] When the float is in the first position, at least part of the flow guide plate is above the first inlet.

[0029] In some embodiments, the sealing groove is an annular structure arranged around the second opening, and the protruding part is an annular structure matched with the sealing groove;

[0030] The sealing groove has opposite first and second wall surfaces, both of which extend along the extension direction of the sealing groove, and the first and second wall surfaces form an included angle, and the distance between the first and second wall surfaces decreases in the direction away from the first inlet in the first direction;

[0031] The protruding part has opposite third and fourth side surfaces in the thickness direction, the third and fourth side surfaces form an included angle, and the distance between the third and fourth side surfaces decreases in the direction away from the first inlet in the first direction, and the included angle between the third and fourth side surfaces is smaller than the included angle between the first and second wall surfaces;

[0032] The connecting surface of the flow guide plate and the first side surface is a curved surface;

[0033] The first side surface is provided with a rib on the edge in the second direction, the bottom of the rib is connected to the flow guide plate, and the size of the rib in the first direction decreases from bottom to top.

[0034] In some embodiments, the cylinder body is movably arranged in the first cavity in the up-down direction.

[0035] In some embodiments, the first cavity is provided with a guide groove extending in the up-down direction, and the barrel is provided with a guide column extending into the guide groove;

[0036] The end face of the first outlet facing the lower side is a horizontal plane;

[0037] The bottom of the barrel is provided with a plurality of legs arranged in the first direction, and the bottom surfaces of the plurality of legs are coplanar;

[0038] When the float is in the second position, at least part of the bottom plate of the barrel is arranged to be inclined downward in the first direction adjacent to the first inlet.

[0039] In some embodiments, the barrel is rotatably arranged in the first cavity.

[0040] In some embodiments, the first cavity is provided with a second rotating shaft, and the side of the barrel facing away from the first inlet in the first direction is rotatably connected to the second rotating shaft.

[0041] The end face of the first outlet facing the lower side is a first inclined plane, and the first inclined plane faces the first inlet in the first direction.

[0042] The bottom of the barrel includes a first bottom plate and a second bottom plate, and when the float is in the second position, the bottom surface of the first bottom plate covers the second outlet, and the second bottom plate is arranged to be inclined downward in the first direction adjacent to the first inlet.

[0043] The flushing switching device also includes a pump body, the pump body is communicated with the first inlet through a water inlet pipe, and the pump body is used for controlling liquid to flow into the first cavity through the first inlet.

[0044] In some embodiments, the shell includes

[0045] The first shell has a third cavity, a fourth cavity and a fifth cavity, the third cavity is communicated with the first cavity through the first outlet, the third cavity, the fourth cavity and the fifth cavity are sequentially communicated, the third cavity, the fourth cavity and the fifth cavity are cylindrical cavities, and the diameters of the fourth cavity, the third cavity and the fifth cavity increase sequentially;

[0046] The second shell has an opening facing the upper side, the second shell and the first shell define the first cavity, the second shell and the first shell are connected through buckling, a sealing ring is arranged between the second shell and the first shell, and the first inlet and the second outlet are formed in the second shell.

[0047] The utility model discloses still propose a closestool, including

[0048] Water tank and closestool body;

[0049] Flush switching device, flush switching device be above-mentioned flush switching device, flush switching device's first import with water tank intercommunication, flush switching device's first export with closestool body's face flush mouth intercommunication, flush switching device's second export with closestool body's auxiliary flush mouth intercommunication. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 It is according to the sectional view of flush switching device of the utility model embodiment.

[0051] Figure 2 It is according to the schematic diagram of float body in second position of the utility model embodiment.

[0052] Figure 3 It is according to the schematic diagram of float body rising of the utility model embodiment.

[0053] Figure 4 It is according to the schematic diagram of float body in first position of the utility model embodiment.

[0054] Figure 5 It is according to the explosion view of flush switching device of the utility model embodiment.

[0055] Figure 6 It is according to the schematic diagram of closestool of the utility model embodiment.

[0056] Figure 7 It is according to the schematic diagram of pump body of the utility model embodiment.

[0057] Figure 8 It is according to the schematic diagram of switch piece of the utility model embodiment.

[0058] Figure 9 It is according to the schematic diagram of sealing groove of the utility model embodiment.

[0059] Figure 10 It is according to the side view of switch piece of the utility model embodiment.

[0060] Figure 11 It is according to the schematic diagram of barrel of the utility model embodiment.

[0061] Figure 12 It is according to the explosion view of flush switching device of another utility model embodiment.

[0062] Figure 13is a schematic view of the float being located at a second position and draining according to another embodiment of the present utility model.

[0063] Figure 14 is a schematic view of the float being located at a second position and draining according to another embodiment of the present utility model.

[0064] Figure 15 is a schematic view of the float being located at a second position and draining according to another embodiment of the present utility model.

[0065] Reference signs: 1, shell, 2, first shell, 3, second shell, 4, first cavity, 5, first inlet, 6, first outlet, 7, second outlet, 8, third cavity, 9, fourth cavity, 10, fifth cavity, 11, buckle, 12, float, 13, second cavity, 14, barrel, 15, switch piece, 16, second opening, 17, first side, 18, second side, 19, guide groove, 20, guide column, 21, first rotating shaft, 22, baffle, 23, sealing groove, 24, first wall, 25, second wall, 26, protruding part, 27, third side, 28, fourth side, 29, sealing gasket, 30, guide plate, 31, rib, 32, supporting leg, 33, pump body, 34, water inlet pipe, 35, water tank, 36, closestool body, 37, face flushing opening, 38, auxiliary flushing opening, 39, sealing ring, 40, second rotating shaft, 41, first inclined surface, 42, first bottom plate, 43, second bottom plate. DETAILED DESCRIPTION

[0066] The embodiments of the present utility model are described in detail below, examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and cannot be understood as a limitation of the present utility model.

[0067] The flushing switching device according to an embodiment of the present utility model is described below with reference to the drawings. As shown in the drawings, the flushing switching device according to an embodiment of the present utility model comprises a shell 1 and a float 12. Figures 1 to 15

[0068] The shell 1 has a first cavity 4, a first inlet 5, a first outlet 6 and a second outlet 7. The first inlet 5, the first outlet 6 and the second outlet 7 are all communicated with the first cavity 4, and the first inlet 5 is used for introducing liquid into the first cavity 4. The first outlet 6 is located above the second outlet 7, and the liquid in the first cavity 4 can be drained from the first outlet 6 and the second outlet 7.

[0069] ​The float 12 has a second cavity 13, and the float 12 is movably arranged in the first cavity 4 so that the float 12 has a first position and a second position, the first position being above the second position. In the first position, the float 12 is adjacent to the first outlet 6 so that the liquid discharge amount of the second outlet 7 is greater than that of the first outlet 6; in the second position, the float 12 is adjacent to the second outlet 7 so that the liquid discharge amount of the first outlet 6 is greater than that of the second outlet 7. Specifically, the float 12 is located between the first outlet 6 and the second outlet 7 in the up-down direction. In the first position, the float 12 is adjacent to the first outlet 6 in the up-down direction, and the float 12 can block the liquid from entering the first outlet 6, thereby reducing the liquid discharge amount of the first outlet 6; in the second position, the float 12 is adjacent to the second outlet 7 in the up-down direction, and the float 12 can block the liquid from entering the second outlet 7, thereby reducing the liquid discharge amount of the second outlet 7.

[0070] The second cavity 13 communicates with the first cavity 4 during the movement of the float 12 from the first position to the second position. Specifically, the movement of the float 12 from the first position to the second position is a process of falling of at least part of the float 12, and during the falling of at least part of the float 12, the second cavity 13 communicates with the first cavity 4 so that the liquid can enter the second cavity 13 during the falling of the float 12, thereby reducing the buoyancy of the float 12 and increasing the falling speed of the float 12.

[0071] The liquid introduced into the first cavity 4 through the first inlet 5 can impact the float 12 in the second position and limit the float 12 in the second position. Specifically, when the float 12 is in the second position, the top of the float 12 is spaced apart from the first outlet 6, and the liquid introduced into the first cavity 4 through the first inlet 5 can directly impact the float 12 in the second position, and the liquid can flow through the top of the float 12, and the impact force of the liquid and the gravity of the float 12 can limit the float 12 in the second position, thereby facilitating the liquid to be discharged from the first outlet 6.

[0072] The float 12 in the second position can float to the first position by using the liquid in the first cavity 4 after stopping the introduction of liquid into the first inlet 5. Specifically, when it is needed to move the float 12 from the second position to the first position, liquid is first introduced into the first cavity 4, and then the liquid supply is stopped, so that the float 12 is not directly impacted by the liquid, and the float 12 can float to the first position by its own buoyancy (at this moment, the second cavity 13 is a hollow cavity), and the float 12 in the first position can block the water from entering the first outlet 6.

[0073] The liquid flowing into the first cavity 4 through the first inlet 5 can limit the float 12 at the first position. Specifically, after the float 12 moves to the first position, the float 12 is spaced apart from the second outlet 7, and the liquid flowing into the first cavity 4 again can flow through the bottom of the float 12, so that the liquid (for example, water) can be discharged from the second outlet 7, and at this moment, the liquid (and the positive pressure of the liquid) in the first cavity 4 can make the float 12 float at the first position.

[0074] After stopping the liquid flowing into the first inlet 5, the float 12 at the first position falls to the second position. Specifically, after stopping the liquid flowing into the first cavity 4, the water level in the first cavity 4 gradually decreases in the process of continuously discharging from the second outlet 7. And in the process of the float 12 moving from the first position to the second position, the second cavity 13 is communicated with the first cavity 4, so as to improve the falling speed of the float 12.

[0075] According to the flushing switching device, the float 12 is arranged in the first cavity 4, and in the process of the float 12 falling, the second cavity 13 is communicated with the first cavity 4, so as to improve the falling speed of the float 12, and then the switching speed of the outlet (the first outlet 5 and the second outlet 6) of the flushing switching device can be improved, that is, the response speed of the flushing switching device can be improved. Compared with the reversing valve or the motor, according to the flushing switching device, the structure (buoyancy and gravity) of the float 12 is matched with the liquid flowing into the first cavity 4 through the first inlet 5, so that the float 12 can move between the first position and the second position, so as to complete the switching of discharging from the first outlet 6 and the second outlet 7. The flushing switching device according to the embodiment of the utility model has the advantages of simple structure, high durability and fast switching speed.

[0076] Therefore, the flushing switching device according to the embodiment of the utility model has the advantages of simple structure, high durability and fast switching speed.

[0077] As shown in FIG. 1, Figures 1 to 5 In some embodiments, the shell 1 includes a first shell 2 and a second shell 3.

[0078] The opening of the first shell 2 faces the lower side, and the first shell 2 has a third cavity 8, a fourth cavity 9 and a fifth cavity 10. The third cavity 8 is communicated with the first cavity 4 through the first outlet 6, the third cavity 8, the fourth cavity 9 and the fifth cavity 10 are communicated in sequence, the third cavity 8, the fourth cavity 9 and the fifth cavity 10 are all cylindrical cavities, and the diameter of the fourth cavity 9, the diameter of the third cavity 8 and the diameter of the fifth cavity 10 increase in sequence. That is, the liquid in the first cavity 4 can be discharged from the shell 1 through the first outlet 6, the third cavity 8, the fourth cavity 9 and the fifth cavity 10 in sequence.

[0079] The opening of the second shell 3 faces upward, and the second shell 3 and the first shell 2 define a first cavity 4. The second shell 3 and the first shell 2 are connected by the buckles 11, and a sealing ring 39 is arranged between the second shell 3 and the first shell 2. The first inlet 5 and the second outlet 7 are arranged on the second shell 3. Specifically, the inner and outer circumferential profiles of the first shell 2 and the second shell 3 in the transverse cross section in the up-down direction are substantially rectangular. The buckles 11 are arranged at the top of the four side plates of the second shell 3, and the four side plates of the first shell 2 are provided with buckling portions respectively matched with the four buckles 11. A part of the first shell 2 can extend into the second shell 3, and the sealing ring 39 is arranged between the first shell 2 and the second shell 3 in the inner-outer direction, so as to improve the sealing performance of the first cavity 4.

[0080] The first outlet 6 is located at the top of the first cavity 4, and the second outlet 7 is located at the bottom of the first cavity 4. Specifically, the first outlet 6 is arranged at the top of the first shell 2, and the second outlet 7 is arranged at the bottom of the second shell 3.

[0081] As shown in Figure 6 and Figure 7 , in some embodiments, the flushing switching device further comprises a pump body 33, which is communicated with the first inlet 5 through a water inlet pipe 34, and the pump body 33 is used to control the liquid to flow into the first cavity 4 through the first inlet 5. That is, the pump body 33 can be started to control the liquid to flow into the first cavity 4 through the first inlet 5. For example, the pump body 33 is a water pump.

[0082] As shown in Figures 1 to 15 , the float 12 comprises a cylinder body 14 and a switch piece 15.

[0083] The cylinder body 14 has a second opening 16, which is communicated with the second cavity 13, that is, the liquid can flow into the second cavity 13 through the second opening 16.

[0084] The switch piece 15 is movably arranged on the cylinder body 14. The switch piece 15 is used to cover the second opening 16 and define the second cavity 13 with the cylinder body 14. During the movement of the float 12 from the first position to the second position, the second cavity 13 is communicated with the first cavity 4 through the second opening 16. Specifically, during the at least partial rising of the float 12 (from the second position to the first position), the switch piece 15 covers the second opening 16, so that the second cavity 13 can be a hollow cavity. During the at least partial falling of the float 12 (from the first position to the second position), the switch piece 15 is in an open state, so that the liquid can flow into the second cavity 13 from the second opening 16.

[0085] As shown in Figures 1 to 5 , Figures 13 to 15As shown in some embodiments, the second opening 16 is disposed opposite to the first inlet 5 in the first direction. The switch piece 15 is rotatably disposed on the barrel 14, the switch piece 15 is plate-shaped, and the switch piece 15 is located between the first inlet 5 and the second opening 16 in the first direction. The switch piece 15 has a first side 17 and a second side 18 opposite to each other in the first direction, the first side 17 faces the first inlet 5, and the second side 18 faces the second opening 16. The liquid entering the first cavity 4 through the first inlet 5 can impact the switch piece 15 of the float 12 in the second position, so that the switch piece 15 abuts against the barrel 14 and covers the second opening 16. The extension direction of the rotation axis of the switch piece 15 is the second direction, and any two of the first direction, the second direction, and the up-down direction are perpendicular to each other.

[0086] Specifically, when the float 12 is in the second position, the liquid entering the first cavity 4 through the first inlet 5 can directly impact the first side 17 of the switch piece 15, so that the switch piece 15 moves towards the direction adjacent to the second opening 16, thereby facilitating the switch piece 15 to cover the second opening 16. The impact force of the liquid can directly limit the float 12 in the second position, or part of the impact force of the liquid increases the friction between the float 12 and the shell 1, so as to limit the float 12 in the second position. The first direction can be the front-rear direction, and the second direction can be the left-right direction. The left-right direction, the up-down direction, and the front-rear direction are shown by arrows in the figure. For example, the first inlet 5, the switch piece 15, and the second opening 16 are sequentially disposed from front to back, and the first side 17 is located in front of the second side 18. The liquid entering the first cavity 4 through the first inlet 5 can directly impact the first side 17 of the switch piece 15 rearward. The extension direction of the rotation axis of the switch piece 15 is the left-right direction.

[0087] As shown in some embodiments, Figures 1 to 5 and Figure 11 In some embodiments, the top of the barrel 14 is provided with a first rotation shaft 21 adjacent to the second opening 16 in the first direction, and the switch piece 15 is rotationally connected with the first rotation shaft 21. Specifically, the first rotation shaft 21 extends in the second direction, and the first rotation shaft 21 is located above the second opening 16. For example, the top of the barrel 14 is provided with two first rotation shafts 21 spaced apart in the left-right direction, the first rotation shafts 21 extend in the left-right direction, and the rotating part of the switch piece 15 is rotationally connected with the first rotation shafts 21.

[0088] As shown in some embodiments, Figures 1 to 5 , Figures 11 to 15As shown, in some embodiments, the top of the switch 15 is provided with a baffle 22 located above the cylinder 14. The angle between the thickness direction of the baffle 22 and the thickness direction of the switch 15 is greater than 90°, and the baffle 22 can drive the switch 15 to rotate relative to the cylinder 14. Specifically, the angle between the thickness direction of the baffle 22 and the thickness direction of the switch 15 is greater than or equal to 100° and less than or equal to 120°. For example, the angle between the thickness direction of the baffle 22 and the thickness direction of the switch 15 is 110°.

[0089] When the float 12 reaches the first position, the baffle 22 abuts against the first outlet 6 and drives the switch 15 to rotate in a direction away from the second opening 16. Specifically, when the float 12 reaches the first position, the baffle 22 abuts against the first outlet 6 to seal the first outlet 6. Furthermore, after the float rises, the top plate of the cylinder 14 can abut against the baffle 22, thereby causing the baffle 22 to rotate relative to the cylinder 14, which in turn causes the switch 15 to rotate in a direction away from the second opening 16, so that a gap is formed between the second opening 16 and the switch 15.

[0090] like Figures 1 to 5 As shown, in some embodiments, a sealing gasket 29 is provided on the top of the baffle 22. When the float 12 reaches the first position, the sealing gasket 29 seals the first outlet 6. Specifically, the sealing gasket 29 is annular, and a fixing member on the top of the baffle 22 passes through the sealing gasket 29 and fixes the sealing gasket 29 to the top of the baffle 22. This allows the top surface of the sealing gasket 29 to abut against the first outlet 6, thereby sealing the first outlet 6. For example, the sealing gasket 29 is made of an elastic material.

[0091] As the float 12 descends from the first position to the second position, the second cavity 13 communicates with the first cavity 4 through the gap between the second opening 16 and the switch 15, allowing liquid to be contained within the second cavity 13. Specifically, when the float 12 is in the first position (a gap is formed between the second opening 16 and the switch 15), the pressure of the liquid flowing into the first cavity 4 through the first inlet 5 allows the float 12 to remain in the first position and seal the first outlet 6. When the flow of liquid stops (a gap is formed between the second opening 16 and the switch 15), the liquid in the first cavity 4 is discharged from the second outlet 7, allowing the liquid in the first cavity 4 to flow into the second cavity 13 and increasing the descent speed of the float 12.

[0092] like Figures 1 to 5 , Figure 9 and Figure 11As shown, in some embodiments, the cylinder 14 has a sealing groove 23 facing the first inlet 5 in a first direction, and the second side 18 of the switch member 15 has a protrusion 26 that can extend into the sealing groove 23. This allows the switch member 15 to have an insert that mates with the cylinder 14, thereby ensuring that at least a portion of the float 12 is sealed by the switch member 15 during ascent, thus ensuring that the second cavity 13 is hollow so that the float 12 has sufficient buoyancy to rise. For example, the cylinder 14 has a sealing groove 23 facing forward, and the protrusion 26 is located on the rear side of the switch member 15.

[0093] like Figure 11 As shown, in some embodiments, the sealing groove 23 is an annular structure surrounding the second opening 16, and the protrusion 26 is an annular structure that mates with the sealing groove 23. Specifically, at least a portion of the cylinder 14 is a rectangular cylinder, and the four side plates of the cylinder 14 define the second opening 16 facing the first inlet 5. The annular sealing groove 23 is formed on the end faces of the four side plates of the cylinder 14 facing the first inlet 5.

[0094] like Figure 9 As shown, in some embodiments, the sealing groove 23 has opposing first wall surfaces 24 and second wall surfaces 25, which define the sealing groove 23. Both the first wall surfaces 24 and second wall surfaces 25 extend along the extending direction of the sealing groove 23, forming an angle, and the distance between the first wall surfaces 24 and second wall surfaces 25 decreases in a first direction away from the first inlet 5. For example, the distance between the first wall surfaces 24 and second wall surfaces 25 decreases rearward.

[0095] The protrusion 26 has a third side surface 27 and a fourth side surface 28 facing away from each other in the thickness direction. The third side surface 27 and the fourth side surface 28 form an angle, and the distance between the third side surface 27 and the fourth side surface 28 decreases in the first direction away from the first inlet 5. The angle between the third side surface 27 and the fourth side surface 28 is smaller than the angle between the first wall surface 24 and the second wall surface 25. Specifically, the opening angle of the sealing groove 23 is greater than the angle between the two sides of the protrusion 26 in the thickness direction, thereby enabling the protrusion 26 and the sealing groove 23 to have a better sealing fit. Specifically, the first wall surface 24 and the second wall surface 25 are greater than or equal to 30° and less than or equal to 60°, and the angle between the third side surface 27 and the fourth side surface 28 is greater than or equal to 5° and less than or equal to 20°. For example, the angle between the first wall surface 24 and the second wall surface 25 is 40°, and the angle between the third side surface 27 and the fourth side surface 28 is 8°.

[0096] like Figures 1 to 5 and Figure 8As shown, in some embodiments, a guide plate 30 is provided on the first side 17, and the guide plate 30 extends along the second direction. The guide plate 30 has a preset size in the first direction, and the connection surface between the guide plate 30 and the first side 17 is an arc surface, thereby facilitating flow guidance. When the float 12 is in the second position, the ratio of the vertical dimensions of the first part of the first inlet 5 above the guide plate 30 to the second part below the guide plate 30 is 1:(0-0.2). That is, when the float 12 is in the second position, when the liquid impacts the first side 17 of the liquid impact switch 15 of the first cavity 4 through the first inlet 5, the guide plate 30 can guide the liquid so that the liquid moves upward and is discharged from the first outlet 6, and the force of the liquid on the guide plate 30 and the first side 17 can facilitate the confinement of the float 12 in the second position.

[0097] When the float 12 is in the first position, at least a portion of the guide plate 30 is positioned above the first inlet 5. This allows the liquid entering the first cavity 4 through the first inlet 5 to impact the first side 17 and the bottom surface of the first side 17 located below the guide plate 30, thereby confining the float 12 to the first position.

[0098] In some embodiments, the first side surface 17 is provided with ribs 31 on its edge in the second direction. The bottom of the ribs 31 is connected to the guide plate 30. (When the float 12 is in the first position) the size of the ribs 31 decreases from bottom to top in the first direction, thereby facilitating the flow of liquid. For example, the first side surface 17 is provided with ribs 31 on its edge in the left-right direction.

[0099] like Figures 1 to 5 As shown, in some embodiments, the cylinder 14 is movably disposed within the first cavity 4 in the vertical direction. That is, the cylinder 14 can move between a first position and a second position in the vertical direction. For example, the cylinder 14 is a rectangular cylinder.

[0100] like Figure 5 As shown, in some embodiments, the first cavity 4 is provided with a guide groove 19 extending in the vertical direction, and the cylinder 14 is provided with a guide post 20 extending into the guide groove 19. Specifically, the top and bottom of the cylinder 14 are provided with guide posts 20 extending in the second direction. The first housing 2 and the second housing 3 are both provided with guide grooves 19 extending in the vertical direction and arranged opposite to each other in the second direction, and the two ends of the two guide posts 20 extend into the guide grooves 19 of the first housing 2 and the second housing 3, respectively. For example, the top and bottom of the cylinder 14 are provided with guide posts 20 extending in the horizontal direction.

[0101] like Figures 1 to 5As shown, in some embodiments, the downward-facing end face of the first outlet 6 is a horizontal plane. Specifically, the bottom surface of the first outlet 6 is a horizontal plane, and the top surface of the cylinder 14 is a horizontal plane. Thus, in the first position, the top surface of the cylinder 14 abuts against the baffle 22, making the thickness direction of the baffle 22 vertical, thereby causing the switching element 15 to rotate away from the second opening 16. For example, the top of the cylinder 14 is provided with a top post that abuts against the baffle 22.

[0102] like Figures 1 to 5 As shown, when the float 12 is in the second position, at least a portion of the bottom plate of the cylinder 14 is inclined downward in the first direction adjacent to the first inlet 5. This allows the liquid in the second cavity 16 to flow out easily in the second position. For example, the bottom plate of the cylinder 14 is inclined forward and downward.

[0103] In some embodiments, the bottom of the cylinder 14 is provided with a plurality of supports 32 spaced apart in a first direction, and the bottom surfaces of the supports 32 are coplanar. This makes it difficult for the cylinder 14 to completely seal the second outlet 7. For example, the guide post 20 at the bottom of the cylinder 14 can constitute a support 32.

[0104] like Figures 12 to 15 As shown, the cylinder 14 is rotatably disposed within the first cavity 4. That is, the cylinder 14 can rotate between the first position and the second position.

[0105] In some embodiments, a second rotating shaft 40 is provided inside the first cavity 4, and the side of the cylinder 14 facing away from the first inlet 5 in a first direction is rotatably connected to the second rotating shaft 40. Specifically, the axial direction of the second rotating shaft 40 is a second direction. For example, the rear side of the cylinder 14 is rotatably connected to the second rotating shaft 40, and the axial direction of the second rotating shaft 40 is a left-right direction.

[0106] The downward-facing end face of the first outlet 6 is a first inclined surface 41, which faces the first inlet 6 in a first direction. Specifically, the first inclined surface 41 forms an angle with the horizontal plane and faces the first inlet 6. This allows the sealing gasket 29 on the baffle 22 to seal the first outlet 6 when the cylinder 14 is rotated to the first position, and at this moment, the top surface of the cylinder 14 abuts against the bottom surface of the baffle 22, so that the switching element 15 can rotate away from the second opening 16. For example, the top surface of the cylinder 14 is provided with a top post that cooperates with the baffle 22.

[0107] like Figures 12 to 15 As shown, the bottom of the cylinder 14 includes a first bottom plate 42 and a second bottom plate 43. Specifically, the first inlet 5, the first bottom plate 42, and the second bottom plate 43 are arranged sequentially in a first direction. For example, the first inlet 5, the first bottom plate 42, and the second bottom plate 43 are arranged sequentially from front to back.

[0108] When the float 12 is in the second position, the thickness direction of the first bottom plate 42 is vertical, and the first bottom plate 42 is directly above the second outlet 7. The bottom surface of the first bottom plate 42 covers the second outlet 7 in order to reduce the flow rate of the second outlet 7.

[0109] When the float 12 is in the second position, the second bottom plate 43 is inclined downward in the first direction along the direction adjacent to the first inlet 5, thereby facilitating the discharge of liquid from the second cavity 13. For example, when the float 12 is in the second position, the second bottom plate 43 is inclined forward and downward.

[0110] The present invention also proposes a toilet, wherein the toilet according to an embodiment of the present invention includes a flushing switching device, a water tank 35 and a toilet body 36 according to an embodiment of the present invention.

[0111] The first inlet 5 of the flushing switching device housing 1 (via pump body 33) is connected to the water tank 35, the first outlet 6 of the flushing switching device is connected to the front flushing port 37 of the toilet body 36, and the second outlet 7 of the flushing switching device is connected to the auxiliary flushing port 38 of the toilet body 36.

[0112] Therefore, the toilet according to the present invention has the advantages of simple structure, high durability and fast flushing switching speed.

[0113] This utility model also proposes a control method for a flushing switching device according to an embodiment of this utility model. The control method for the flushing switching device according to an embodiment of this utility model includes the following steps:

[0114] In the initial state, the float 12 is located in the second position of the first cavity 4 (e.g., Figure 1 and Figure 13 (As shown).

[0115] Liquid is introduced into the first cavity 4 through the first inlet 5. The liquid impacts and confines the float 12, which is located in the second position, to the second position, so that the flow rate of liquid discharged from the first outlet 6 in the first cavity 4 is greater than the flow rate of liquid discharged from the second outlet 7. Specifically, the pump body 33 is activated to introduce liquid into the first cavity 4 through the inlet pipe 34 and the first inlet 5. Figure 2 and Figure 14 As shown, the liquid applies a thrust (F) to the switch 15. 水 This causes the second cavity 13 inside the float 12 to be empty, while the first cavity 4 is filled with water, generating buoyancy (F) in the float 12. At this moment, the buoyancy (F) of the float 12 is greater than the weight (G) of the float, but the switching element 15 applies a thrust (F). 水 This fixes the pontoon 12 in the second position.

[0116] After a first preset time has elapsed since the flow of liquid into the first inlet 5 has stopped, liquid is flowed into the first inlet 5 again. During this first preset time, the float 12, located in the second position, can float back to the first position using the liquid in the first cavity 4. Furthermore, the liquid flowing into the first cavity 4 again from the first inlet 5 can confine the float 12 in the first position to that position, so that the flow rate of liquid discharged from the first outlet 6 in the first cavity 4 is less than the flow rate of liquid discharged from the second outlet 7. Specifically, as... Figure 3 As shown, when the liquid supply stops within the first preset time, no liquid directly impacts the float 12 (i.e., no thrust F is applied to the switch 15). 水 At this moment, the first cavity 4 contains liquid, and the float 12 is subjected to the pressure of water at the second outlet 7, keeping the second opening 7 sealed until it moves to the first outlet 6 under the combined pressure of buoyancy and the liquid re-entering from the first inlet 5. At this moment, the switch 15 no longer seals the second opening 7, that is, the float 12 uses its own buoyancy (at this moment, the switch 15 seals the second opening 16, and the buoyancy (F) of the float 12 is greater than the weight (G) of the float) to float to the first position. Figure 4 and Figure 15 As shown, the float 12 in the first position can prevent water from entering the first outlet 6 (at this moment, the switch 15 no longer seals the second opening 16, and the first cavity 4 is connected to the second cavity 13). Liquid is then introduced into the first inlet 5 again. Due to the liquid entering, a positive pressure (F) is generated inside the first cavity 4. 水 This prevents the float 12 from falling and keeps it from falling into the first outlet 6, at which point the liquid is discharged from the second outlet 7.

[0117] After the flow of liquid into the first inlet 5 stops, the float 12, which was in the first position, falls to the second position, and during this process, the second cavity 13 flows with the first cavity 4. Thus, one motion cycle is completed.

[0118] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0119] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0120] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0121] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0122] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0123] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A flush switching device, characterized in that, The device comprises: a housing having a first cavity, a first inlet, a first outlet and a second outlet, the first inlet, the first outlet and the second outlet all communicating with the first cavity, the first inlet being used for feeding liquid into the first cavity, the first outlet being located above the second outlet; a float having a second cavity, the float being movably arranged in the first cavity so that the float has a first position and a second position, the first position being located above the second position, in the first position, the float is adjacent to the first outlet so that the discharge amount of the second outlet is greater than that of the first outlet, in the second position, the float is adjacent to the second outlet so that the discharge amount of the first outlet is greater than that of the second outlet, the second cavity communicates with the first cavity during the movement of the float from the first position to the second position; wherein the liquid fed into the first cavity through the first inlet can impact the float in the second position and restrict the float in the second position; after the feeding of liquid into the first inlet is stopped, the float in the second position can float to the first position by the liquid in the first cavity; the liquid fed into the first cavity through the first inlet can restrict the float in the first position in the first position; after the feeding of liquid into the first inlet is stopped, the float in the first position falls to the second position.

2. The flush switching device of claim 1, wherein, The float comprises a cylinder body having a second opening, the second opening communicating with the second cavity; a switch member movably arranged on the cylinder body, the switch member being used for covering the second opening and defining the second cavity with the cylinder body, the second cavity communicating with the first cavity through the second opening during the movement of the float from the first position to the second position.

3. The flush switching device according to claim 2, wherein the first outlet is located at the top of the first cavity, and the second outlet is located at the bottom of the first cavity; the second opening is oppositely arranged with the first inlet in a first direction; the switch member is rotatably arranged on the cylinder body, the switch member is plate-shaped, the switch member is located between the first inlet and the second opening in the first direction, the switch member has a first side and a second side opposite to each other in the first direction, the first side faces the first inlet, and the second side faces the second opening, the extension direction of the rotation axis of the switch member is a second direction, any two of the first direction, the second direction and the up-down direction are perpendicular to each other; the liquid fed into the first cavity through the first inlet can impact the switch member of the float in the second position, so that the switch member abuts against the cylinder body and covers the second opening.

4. The flush switching device according to claim 3, wherein The top of the cylinder is provided with a first rotating shaft adjacent to the second opening in the first direction, and the switch member is rotationally connected with the first rotating shaft; The top of the switch member is provided with a baffle above the cylinder, and the baffle can drive the switch member to rotate relative to the cylinder; When the float reaches the first position, the baffle abuts against the first outlet and drives the switch member to rotate in a direction away from the second opening; During the process that the float in the first position falls to the second position, the second cavity is communicated with the first cavity through the gap between the second opening and the switch member, so that the second cavity can contain liquid.

5. The flush switching device according to claim 4, wherein, An angle between a thickness direction of the baffle and a thickness direction of the switch member is greater than 90°; The cylinder has a sealing groove facing the first inlet in the first direction, and the second side surface of the switch member is provided with a protruding part which can extend into the sealing groove; The top of the baffle is provided with a sealing gasket, and when the float reaches the first position, the sealing gasket covers the first outlet; The first side surface is provided with a flow guide plate extending in the second direction; When the float is in the second position, a size ratio of a first part above the flow guide plate to a second part below the flow guide plate in the up-down direction is 1:(0-0.2); When the float is in the first position, at least part of the flow guide plate is above the first inlet.

6. The flush switching device according to claim 5, wherein, The sealing groove is an annular structure arranged around the second opening, and the protruding part is an annular structure matched with the sealing groove; The sealing groove has opposite first and second wall surfaces, both of which extend along the extension direction of the sealing groove, and the first and second wall surfaces form an angle, and the distance between the first and second wall surfaces decreases in the first direction away from the first inlet; The protruding part has opposite third and fourth side surfaces in the thickness direction, the third and fourth side surfaces form an angle, and the distance between the third and fourth side surfaces decreases in the first direction away from the first inlet, and the angle between the third and fourth side surfaces is smaller than the angle between the first and second wall surfaces; The connecting surface of the flow guide plate and the first side surface is a curved surface; The first side surface is provided with a rib on the edge in the second direction, the bottom of the rib is connected with the flow guide plate, and the size of the rib in the first direction decreases from bottom to top.

7. A flush switching device according to any of claims 3-6, characterized in that The cylinder is movably arranged in the first cavity in the up-down direction.

8. The flush switching device according to claim 7, wherein, The first cavity is provided with a guide groove extending in the up-down direction, and the cylinder is provided with a guide column extending into the guide groove; The end surface of the first outlet facing the lower side is a horizontal surface. The bottom of the barrel is provided with a plurality of supports arranged at intervals in the first direction, and the bottom surfaces of the plurality of supports are coplanar; When the float is in the second position, at least part of the bottom plate of the barrel is arranged to be inclined downward in the first direction adjacent to the first inlet.

9. A flush switching device according to any of claims 3-6, characterized in that The barrel is rotatably arranged in the first cavity.

10. The flush switching device according to claim 9, wherein A second rotating shaft is arranged in the first cavity, and the side of the barrel away from the first inlet in the first direction is rotatably connected to the second rotating shaft; The end surface of the first outlet facing the lower side is a first inclined surface, and the first inclined surface faces the first inlet in the first direction; The bottom of the barrel includes a first bottom plate and a second bottom plate, and when the float is in the second position, the bottom surface of the first bottom plate covers the second outlet, and the second bottom plate is arranged to be inclined downward in the first direction adjacent to the first inlet.

11. The flush switching device of claim 1, wherein, A pump body is further included, the pump body is in communication with the first inlet through a water inlet pipe, and the pump body is used to control the liquid to pass into the first cavity through the first inlet.

12. The flush switching device of claim 1, wherein, The shell includes A first shell, an opening of the first shell facing the lower side, the first shell having a third cavity, a fourth cavity and a fifth cavity, the third cavity being in communication with the first cavity through the first outlet, the third cavity, the fourth cavity and the fifth cavity being in sequence, the third cavity, the fourth cavity and the fifth cavity all being cylindrical cavities, the diameter of the fourth cavity, the diameter of the third cavity and the diameter of the fifth cavity increasing in sequence; A second shell, an opening of the second shell facing the upper side, the second shell and the first shell defining the first cavity, the second shell and the first shell being connected through buckling, a sealing ring being arranged between the second shell and the first shell, the first inlet and the second outlet being arranged on the second shell.

13. A toilet characterized by The shell includes A water tank and a toilet body; A flush switching device, the flush switching device being any one of the flush switching devices according to claims 1-12, a first inlet of the shell of the flush switching device being in communication with the water tank, a first outlet of the flush switching device being in communication with a main flushing opening of the toilet body, and a second outlet of the flush switching device being in communication with an auxiliary flushing opening of the toilet body.

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