A toilet sewage discharge device structure and a toilet structure

Abstract

This utility model discloses a toilet flushing device structure, installed on a toilet. The toilet has a water seal chamber and includes a flushing tray and a flushing box body. The flushing tray is rotatable relative to the flushing box body, switching between a water seal position and a flushing position. A sealing ring is provided between the flushing tray and the flushing box body. When the flushing tray switches to the water seal position, the flushing tray moves along the flushing tray axis in a first direction, compressing the sealing ring. During the process of switching from the water seal position to the flushing position or from the flushing position to the water seal position, the flushing tray moves along the flushing tray axis in a second direction, releasing or reducing the compression on the sealing ring. This utility model also discloses a toilet structure in which, during the process of the flushing tray switching from the water seal position to the flushing position, no additional friction is generated between the flushing tray and the flushing box body due to the sealing ring, reducing frictional wear on the sealing ring, thereby delaying seal failure and preventing water seal leakage.

Description

Technical Field

[0001] This utility model relates to the field of sanitary ware technology, and in particular to a toilet sewage discharge device structure and a toilet structure. Background Technology

[0002] A post-flush toilet system is a common flushing method in modern toilet designs. Its core function is to switch the flush pan assembly between a water seal state and a flushing state, thus enabling the toilet to flush. In the water seal state, the toilet forms a water seal through the trap, effectively preventing odors from the sewer pipes from entering the bathroom. In the flushing state, the flush pan assembly opens, and wastewater is quickly discharged through the flushing channel. A reliable dynamic seal needs to be formed between the flush pan assembly and the flushing system to ensure normal operation under different conditions. Currently, Y-rings are commonly used as dynamic seals. While this design can meet sealing requirements to some extent, it also has significant limitations.

[0003] First, the sealing effect of the Y-ring is not ideal, especially after long-term use, as material aging or wear can easily lead to seal failure. Second, to reduce the torque when switching the drain pan assembly and make operation easier, the interference fit of the Y-ring is usually set relatively small. Interference fit refers to the amount of interference between the seal and the mating part. The smaller the interference fit, the smaller the switching torque, but this also means insufficient clamping force on the seal, which can easily lead to slow leakage of the water seal. Once leakage occurs, the toilet's water seal function will gradually fail, and odors from the sewer pipe will overflow into the bathroom through the gaps, not only polluting the bathroom environment but also affecting the user's experience and health.

[0004] In view of the above, the designer of this utility model designed this utility model. Utility Model Content

[0005] The purpose of this utility model is to provide a toilet sewage discharge device structure that can delay seal failure and prevent water seal leakage.

[0006] Another objective of this utility model is to provide a toilet structure equipped with the toilet sewage discharge device structure of this utility model.

[0007] To achieve the above objectives, the present invention adopts the following solution:

[0008] A toilet flushing device structure is installed on a toilet. The toilet has a water seal chamber and includes a flushing tray and a flushing box body. The flushing tray is rotatable relative to the flushing box body, switching between a water seal position and a flushing position. A sealing ring is provided between the flushing tray and the flushing box body. When the flushing tray switches to the water seal position, the flushing tray moves along the flushing tray axis in a first direction, compressing the sealing ring. During the process of switching the flushing tray from the water seal position to the flushing position or from the flushing position to the water seal position, the flushing tray moves along the flushing tray axis in a second direction, releasing or reducing the compression on the sealing ring.

[0009] Furthermore, a toilet flushing device structure also includes a first drive mechanism, which drives the flushing disc to switch between the water seal position and the flushing position.

[0010] Preferably, the first drive mechanism is any one of a motor, a pneumatic cylinder, or a hydraulic cylinder.

[0011] In some embodiments, the first driving mechanism includes a driving wheel, a first gear, and a second gear. The drain disc is provided with a rotating shaft. The first gear and the second gear are mounted side by side on the rotating shaft. The driving wheel selectively engages with the first gear and remains engaged with the second gear. When the driving wheel drives the second gear to rotate within a first preset angle range, the first gear and the second gear rotate synchronously. The first gear drives the drain disc to switch between a water seal position and a drain position. When the driving wheel drives the second gear to rotate within a second preset angle range, the second gear rotates relative to the first gear. The second gear drives the drain disc to compress the sealing ring or release or reduce the compression on the sealing ring.

[0012] In some embodiments, the first drive mechanism includes a motor, a drive wheel, and a transition wheel. The drive wheel is mounted on the drive shaft of the motor, and the transition wheel meshes with the drive wheel and the drive wheel, respectively.

[0013] In some embodiments, the second gear has a wedge-shaped boss on its end face facing the rotating shaft, and the rotating shaft has a rib opposite to the wedge-shaped boss at its end facing the second gear; when the first gear and the second gear rotate relative to each other, the rib cooperates with the wedge-shaped boss to drive the drain pan to squeeze the sealing ring; the wedge-shaped boss has a high point and a low point, and the high point and the low point are connected by a ramp; when the rib cooperates with the high point, it drives the drain pan to squeeze the sealing ring; when the rib cooperates with the low point, it releases or reduces the squeezing of the sealing ring by the drain pan.

[0014] In some embodiments, the first gear has a missing tooth section and an annular groove, and the second gear has an annular rib. When the drive wheel drives the second gear to rotate within a second preset angle range, the drive wheel engages with the missing tooth section, causing the drive wheel to disengage from the first gear. At this time, the drive wheel only meshes with the second gear. When the drive wheel drives the second gear to rotate within a first preset angle range, the annular rib abuts against the edge of the annular groove, and the second gear can drive the first gear to rotate, causing the first gear to engage with the drive wheel. At this time, the drive wheel meshes with both the first gear and the second gear.

[0015] Furthermore, a toilet flushing device structure also includes a limiting ring, which is sleeved on the flushing pan. The flushing pan has at least one first wedge-shaped protrusion on the side facing away from the water seal chamber, and the limiting ring has at least one second wedge-shaped protrusion on the side facing the water seal chamber. Through the abutting engagement of the first wedge-shaped protrusion and the second wedge-shaped protrusion, the flushing pan can move along the flushing pan axis in a first direction to squeeze the sealing ring; through the separation of the first wedge-shaped protrusion and the second wedge-shaped protrusion, the flushing pan can move along the flushing pan axis in a second direction.

[0016] Alternatively, a toilet flushing device structure further includes a limiting ring, which is sleeved on the flushing pan. One of the flushing pan and the limiting ring is provided with a wedge-shaped boss, and the other of the flushing pan and the limiting ring is provided with a mating surface. The flushing pan can be moved axially along the flushing pan by moving the mating surface at the high point and the low point of the wedge-shaped boss.

[0017] Furthermore, the sealing ring is an O-ring, a Y-ring, or a sealing gasket; the toilet has a first drain pipe below the water seal chamber, the water seal chamber has a first drain outlet, the drain box body has a drain inlet, a second drain pipe, and a tray chamber, the drain inlet is sealed and connected to the first drain outlet, the first drain pipe is sealed and connected to the second drain pipe, the drain tray is installed in the tray chamber, the upper end of the drain tray has a drain outlet, the drain outlet is selectively connected to the second drain pipe, and the water inlet of the drain tray is connected to the first drain outlet of the water seal chamber.

[0018] Preferably, it also includes a second drive mechanism, which drives the drain pan to move axially along the drain pan; the second drive mechanism is any one of a motor, a cylinder or a hydraulic cylinder.

[0019] In some embodiments, the drain pan or drain box body is provided with at least one annular rib opposite to the sealing ring, and when the drain pan is in the water seal position, the annular rib and the sealing ring are sealed together.

[0020] A toilet structure, equipped with the aforementioned toilet sewage discharge device structure.

[0021] As can be seen from the above technical solution, this utility model, through the cooperative structural design between the drain pan and the drain box body, has a sealing ring between them. When the drain pan switches to the water seal position, it moves along the drain pan axis in a first direction, compressing the sealing ring. During the process of switching from the water seal position to the drain position or vice versa, the drain pan moves along the drain pan axis in a second direction, relieving or minimizing the compression on the sealing ring. This ensures that during the entire switching process between the water seal position and the drain box body, no additional friction is generated between the drain pan and the drain box body due to the sealing ring, reducing frictional wear on the sealing ring, thereby delaying seal failure, preventing water seal leakage, and minimizing the switching torque, ensuring normal switching function. The structure is simple, the function is reliable, and the cost is low. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0023] Figure 1 This is a schematic diagram of a toilet structure equipped with the toilet sewage discharge device of this utility model.

[0024] Figure 2 This is an exploded view of a toilet structure equipped with the toilet flushing device of Embodiment 1 of this utility model.

[0025] Figure 3 This is a schematic diagram of the drain pan of Embodiment 1 of this utility model.

[0026] Figure 4 This is a schematic diagram of the limiting ring in Embodiment 1 of this utility model.

[0027] Figure 5 This is a side sectional view of the limiting ring of Embodiment 1 of this utility model.

[0028] Figure 6 This is a cross-sectional view of Embodiment 1 of the present invention when the drain pan is switched to the water seal position.

[0029] Figure 7 This is a cross-sectional view of Embodiment 1 of the present invention during the process of switching the drain pan from the water seal position to the drain position.

[0030] Figure 8This is a cross-sectional view of Embodiment 1 of the present invention when the drain pan is switched to the drain position.

[0031] Figure 9 An exploded view of a toilet structure equipped with the toilet flushing device of Embodiment 2 of this utility model.

[0032] Figure 10 This is a cross-sectional view of Embodiment 2 of the present invention when the drain pan is switched to the water seal position.

[0033] Figure 11 This is a cross-sectional view of Embodiment 2 of the present invention during the process of switching the drain pan from the water seal position to the drain position.

[0034] Figure 12 This is a cross-sectional view of Embodiment 2 of the present invention when the drain pan is switched to the drain position.

[0035] Figure 13 This is a cross-sectional view of the toilet drain device according to Embodiment 2 of this utility model.

[0036] Figure 14 This is a schematic diagram of the drain pan in the water-sealed state in Embodiment 2 of this utility model.

[0037] Figure 15 This is a schematic diagram of the drain pan in the draining state according to Embodiment 2 of this utility model.

[0038] Figure 16 This is a schematic diagram of the assembly of the drain tray and insert in Embodiment 2 of this utility model.

[0039] Figure 17 This is a perspective view of the first gear in Embodiment 2 of this utility model.

[0040] Figure 18 This is a perspective view of the second gear in Embodiment 2 of this utility model.

[0041] Figure 19 This is a simplified diagram of the wedge-shaped boss in Embodiment 2 of this utility model.

[0042] Figure 20 This is a perspective view of the gear assembly during the rotation and switching process of the drain pan in Embodiment 2 of this utility model.

[0043] Figure 21 This is a cross-sectional view of the gear assembly during the rotation and switching process of the drain pan in Embodiment 2 of this utility model.

[0044] Figure 22 This is a perspective view of the gear assembly in Embodiment 2 of this utility model before or after the water seal is formed.

[0045] Figure 23This is a cross-sectional view of the gear assembly in Embodiment 2 of this utility model before or after sealing in a water-sealed state.

[0046] Figure 24 A perspective view of the gear assembly after sealing in a water-sealed state according to Embodiment 2 of this utility model.

[0047] Figure 25 This is a cross-sectional view of the gear assembly after it has been sealed in a water-sealed state, according to Embodiment 2 of this utility model.

[0048] The reference numerals in the attached figures are explained as follows:

[0049] Toilet 1

[0050] Toilet bowl 11 Water seal chamber 12

[0051] First sewage outlet 121

[0052] Sewage tray 2

[0053] First wedge-shaped boss 21 Rotating shaft 22 Sewage outlet 23

[0054] Inlay 221, raised rib 222, square segment 223

[0055] Cylindrical segment 224

[0056] 24 convex surfaces

[0057] Sewage box body 3

[0058] Sewage inlet 31 Second sewage pipe 32 Compartment 33

[0059] Limiting rib 34

[0060] Curved surface 331

[0061] O-ring 41, Y-ring 42

[0062] First drive mechanism 5

[0063] Motor 51, Drive wheel 52, Transition wheel 53

[0064] Drive wheel 54 First gear 55 Second gear 56

[0065] Missing tooth section 551 Annular groove 552 Square hole 553

[0066] 561 Wedge-shaped boss; 562 Line groove; 563 Annular rib.

[0067] High point 5611, Slope 5612, Low point 5613

[0068] 564 round holes

[0069] Electronic drive section 57 Mechanical drive section 58

[0070] Limiting ring 6

[0071] Second wedge-shaped protrusion 61

[0072] First sewage pipe 7

[0073] Sewage box cover 8

[0074] Mounting rack 9

[0075] Brush ring nozzle 01 Brush ring solenoid valve 02

[0076] Circular reinforcing bar 023; Sealing gasket 024. Detailed Implementation

[0077] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0078] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0079] Reference Figure 1This utility model discloses a toilet flushing device structure, installed on a toilet 1. The toilet 1 has a water seal chamber 12 and includes: a flushing tray 2 and a flushing box body 3. The flushing tray 2 can rotate relative to the flushing box body 3, switching between a water seal position and a flushing position. A sealing ring is provided between the flushing tray 2 and the flushing box body 3. When the flushing tray 2 switches to the water seal position, the flushing tray 2 moves along the axis of the flushing tray 2 in a first direction, squeezing the sealing ring to increase the deformation of the sealing ring. Specifically, the flushing tray 2 moves toward the water seal chamber 12. During the process of switching from the water seal position to the flushing position or from the flushing position to the water seal position, the flushing tray 2 moves along the axis of the flushing tray 2 in a second direction, releasing or reducing the squeezing of the sealing ring. Specifically, the flushing tray 2 moves away from the water seal chamber 12. The flushing tray 2 is installed inside the flushing box body 3, and the water seal chamber 12 is formed above the toilet bowl 11 of the toilet 1.

[0080] This utility model also discloses a toilet structure, which is equipped with the toilet sewage discharge device structure of this utility model.

[0081] Therefore, this utility model, through the cooperative structural design between the drain pan 2 and the drain box body 3, provides a sealing ring between the drain pan 2 and the drain box body 3. When the drain pan 2 switches to the water seal position, the drain pan 2 moves towards the water seal chamber 12, squeezing the sealing ring. During the process of switching the drain pan 2 from the water seal position to the drain position or from the drain position to the water seal position, the drain pan 2 moves away from the water seal chamber 12, releasing or reducing the squeezing of the sealing ring. This ensures that during the entire switching process between the water seal position and the drain position (including switching from the water seal position to the drain position and from the drain position to the water seal position), no additional friction is generated between the drain pan 2 and the drain box body 3 due to the sealing ring, reducing friction wear on the sealing ring, thereby delaying seal failure, preventing water seal leakage, and minimizing the switching torque, ensuring normal switching function. The structure is simple, the function is reliable, and the cost is low.

[0082] Please see Figures 2-8 As shown, the structure of the toilet flushing device in Embodiment 1 of this utility model is as follows:

[0083] The toilet drain device structure of this utility model may further include a first drive mechanism 5, which drives the drain pan 2 to switch between a water seal position and a drain position; preferably, the first drive mechanism 5 can be any one of a motor, a cylinder or a hydraulic cylinder.

[0084] Furthermore, the toilet flushing device structure of this utility model may also include a limiting ring 6, which is sleeved on the flushing pan 2. At least one first wedge-shaped protrusion 21 is provided on the side of the flushing pan 2 facing away from the water seal chamber 12, and at least one second wedge-shaped protrusion 61 is provided on the side of the limiting ring 6 facing the water seal chamber 12. Through the cooperation of the first wedge-shaped protrusion 21 and the second wedge-shaped protrusion 61, the flushing pan 2 can be moved away from or towards the water seal chamber 12. However, this is not a limitation; the toilet flushing device structure of this utility model can also utilize other structures (such as threaded structures, gear structures, rack and pinion structures, etc.). (e.g., using a pulley structure) to move the drain pan 2 away from or toward the water seal chamber 12; in other words, this utility model achieves the movement of the drain pan 2 along the first axis of the drain pan 2 in a first direction by the abutting cooperation of the first wedge-shaped boss 21 and the second wedge-shaped boss 61, thereby squeezing the sealing ring; by separating the first wedge-shaped boss 21 and the second wedge-shaped boss 61, the drain pan 2 is moved along the second axis of the drain pan 2 in a second direction. In the embodiment, the number of the first wedge-shaped boss 21 is four, evenly spaced, and the number of the second wedge-shaped boss 61 is four, evenly spaced.

[0085] For a better option, please refer to Figures 3 to 5 As shown, both the first wedge-shaped boss 21 and the second wedge-shaped boss 61 have a structure that is higher in the middle and lower on both sides. Therefore, when the drain pan 2 switches to the water seal position, the middle of the first wedge-shaped boss 21 and the middle of the second wedge-shaped boss 61 are aligned. The drain pan 2 moves towards the water seal chamber 12, that is, it moves forward axially, compressing the sealing ring. Figure 6 and Figure 8 As shown; during the process of switching the drain pan 2 from the water seal position to the drain position or from the drain position to the water seal position, the middle of the first wedge-shaped protrusion 21 aligns with one of the two sides of the second wedge-shaped protrusion 61. Under the action of the water-filled thrust in the water seal chamber 12, the drain pan 2 moves away from the water seal chamber 12, that is, it retracts axially, relieving or reducing the pressure on the sealing ring. Of course, the drain pan 2 can also move away from the water seal chamber 12 under the action of the elastic force of the spring (not shown), that is, it retracts axially, relieving or reducing the pressure on the sealing ring.

[0086] The drain pan 2 can be provided with a rotating shaft 22, which is installed on the first drive mechanism 5. The first drive mechanism 5 drives the rotating shaft 22 to rotate, and the rotating shaft 22 drives the drain pan 2 to rotate, but this is not the only possibility.

[0087] Therefore, the drain pan 2 can rotate circumferentially relative to the drain box body 3 along the rotation axis 22, and can also move back and forth along the axial direction of the drain pan 2.

[0088] Furthermore, the sealing ring is one or more combinations of an O-ring 41, a Y-ring 42, or a sealing gasket. Figures 6 to 8 In the embodiment shown, the sealing rings provided between the drain pan 2 and the drain box body 3 include an O-ring 41 and a Y-ring 42. The O-ring 41 is provided between the end of the drain pan 2 and the drain box body 3, and the Y-ring 42 is provided between the side wall of the drain pan 2 and the drain box body 3.

[0089] The drain pan 2 has a groove at its end for setting an O-ring 41.

[0090] To facilitate the installation and fixation of the sewage box body 3, the toilet 1 is provided with a mounting bracket 9, and the sewage box body 3 is installed and fixed on the mounting bracket 9.

[0091] Furthermore, for ease of installation, the toilet 1 is provided with a first drain pipe 7 below the water seal chamber 12. The water seal chamber 12 has a first drain outlet 121. The drain box body 3 has a drain inlet 31, a second drain pipe 32, and a tray 33. The drain inlet 31 is sealed and connected to the first drain outlet 121. The first drain pipe 7 is sealed and connected to the second drain pipe 32. The drain tray 2 is installed in the tray 33. The upper end of the drain tray 2 is provided with a drain outlet 23. The drain outlet 23 is selectively connected to the second drain pipe 32. The water inlet end of the drain tray 2 is connected to the first drain outlet 121 of the water seal chamber 12.

[0092] In order to facilitate sewage discharge, the first sewage pipe 7 and the second sewage pipe 32 are bent in opposite directions.

[0093] Preferably, for ease of disassembly and assembly, the side of the sewage box body 3 away from the water seal chamber 12 is detachably covered with a sewage box cover 8; wherein, the first drive mechanism 5 can be installed on the outside of the sewage box cover 8, and the rotating shaft 22 passes through the sewage box cover 8.

[0094] Preferably, the inner wall of the chamber 33 is formed with an arc-shaped surface 331, so that the drain port 23 of the drain pan 2 can move along the arc-shaped surface 331 and switch to the second drain pipe 32.

[0095] Furthermore, the toilet structure of this utility model also includes a brush ring nozzle 01 and a brush ring solenoid valve 02 installed inside the toilet 1. The brush ring solenoid valve 02 controls the brush ring nozzle 01 to spray flushing water to rinse the toilet bowl surface 11.

[0096] When the present invention is in a water-sealed state, the drain port 23 of the drain pan 2 is in a vertically upward position. At this time, the toilet bowl surface 11 and the drain pan 2 form a U-shaped structure. When the brush ring solenoid valve 02 is opened, the flushing water sprayed from the brush ring nozzle 01 can gather at the bottom of the toilet 1 to form a water seal. In this state, the first wedge-shaped protrusion 21 on the drain pan 2 and the second wedge-shaped protrusion 61 on the limiting ring 6 are in a mutually cooperating state. The drain pan 2 moves forward axially and cooperates with the drain box body 3 to compress the sealing ring, thereby forming a sealing state between the drain pan 2 and the drain box body 3, ensuring that the water seal formed at the bottom of the toilet 1 will not leak out. When the flushing program is executed, the brush ring solenoid valve 02 is opened first, and the flushing water sprayed from the brush ring nozzle 01 continuously flushes the toilet bowl surface 11, cleaning the toilet bowl. The dirt on the surface 11 is flushed to the bottom of the toilet 1, and the flushing water gathers in the toilet 1. After a certain period of time, the first drive mechanism 5 drives the drain plate 2 to rotate, switching from the water seal state to the drain state. When switching, the first wedge-shaped protrusion 21 on the drain plate 2 disengages from the second wedge-shaped protrusion 61 on the limit ring 6. Under the thrust of the water seal water, the drain plate 2 moves backward along the axis. The drain plate 2 and the drain box body 3 can no longer compress the sealing ring, and the sealing effect of the sealing ring between them is released. Since the sealing ring is no longer tightly attached to the drain pan 2 and the drain box body 3, it does not generate additional friction force on the rotation of the drain pan 2, thus ensuring a small switching torque. A smaller motor can be used to achieve the switching function, resulting in low cost. The sealing ring also does not wear during the switching process, making the sealing effect in the water seal state more reliable. When the drain pan 2 switches to the drain state, the drain port 23 of the drain pan 2 connects to the second drain pipe 32. Under gravity, the water collected in the toilet 1 is quickly discharged from the pipes of the second drain pipe 32 and the first drain pipe 7, carrying away the waste. During the waste discharge process, the brush ring nozzle 01 continuously supplies water to continuously flush the toilet bowl surface 11. After the waste discharge is completed, the drain pan 2 rotates back to the water seal state under the drive of the first drive mechanism 5. The brush ring nozzle 01 continues to supply water, reforming the water seal at the bottom of the toilet 1. After the water seal is full, the brush ring solenoid valve 02 is closed, and the flushing procedure is complete.

[0097] Furthermore, when the sealing ring is a Y-ring, the interference fit of the Y-ring increases when the drain pan 2 moves toward the water seal chamber 12, and the interference fit of the Y-ring decreases or the interference fit disengages when the drain pan 2 moves away from the water seal chamber 12.

[0098] The toilet flushing device structure of this utility model may further include a limiting ring 6, which is sleeved on the flushing pan 2. One of the flushing pan 2 and the limiting ring 6 is provided with a wedge-shaped boss, and the other of the flushing pan 2 and the limiting ring 6 is provided with a mating surface. During the rotation of the flushing pan 2 driven by the first driving mechanism, the flushing pan 2 moves along the axial direction of the flushing pan 2 by moving the mating surface at the high point and the low point of the wedge-shaped boss. Specifically, the axial movement includes the flushing pan 2 moving toward / away from the water seal chamber 12.

[0099] In addition, the toilet drain device structure of this utility model may also include a second drive mechanism, which can drive the drain pan 2 to move along the axial direction of the drain pan 2, thereby moving away from the water seal chamber 12 or moving towards the water seal chamber 12; preferably, the second drive mechanism can be any one of a motor, a cylinder or a hydraulic cylinder.

[0100] Please see Figures 9-25 As shown, the structure of the toilet flushing device in Embodiment 2 of this utility model is as follows:

[0101] Compared with the toilet seat drain device of Embodiment 1 of this utility model, this embodiment does not require the setting of a second driving mechanism and a limiting ring. It can realize the switching of the drain pan 2 between the water seal position and the drain position by the first driving mechanism 5 and the squeezing of the sealing ring or the release or reduction of the squeezing of the sealing ring. The first driving mechanism 5, drain pan 2 and sealing ring in this embodiment are different from the first driving mechanism 5, drain pan 2 and sealing ring in Embodiment 1 in terms of structure.

[0102] Specifically, in this embodiment, the first driving mechanism 5 includes a driving wheel 54, a first gear 55, and a second gear 56. The drain pan 2 is provided with a rotating shaft 22. The first gear 55 and the second gear 56 are mounted side by side on the rotating shaft 22. The driving wheel 54 selectively engages with the first gear 55 and maintains engagement with the second gear 56. When the driving wheel 54 drives the second gear 56 to rotate within a first preset angle range, the first gear 55 and the second gear 56 rotate synchronously. The first gear 55 drives the drain pan 2 to switch between a water seal position and a drain position. When the driving wheel 54 drives the second gear 56 to rotate within a second preset angle range, the second gear 56 rotates relative to the first gear 55. The second gear 56 drives the drain pan 2 to squeeze the sealing ring or release or reduce the squeezing of the sealing ring.

[0103] Furthermore, the first drive mechanism 5 also includes a motor 51, a drive wheel 52, and a transition wheel 53. The drive wheel 52 is mounted on the drive shaft of the motor 51, and the transition wheel 53 meshes with the drive wheel 52 and the drive wheel 54 respectively. Thus, the motor 51 is connected to the drive wheel 52, and the drive wheel 54, the transition wheel 53 and the drive wheel 52 mesh sequentially to realize the power transmission of the motor 51.

[0104] Please refer to Figure 9 and Figure 13 As shown, the first drive mechanism 5 is divided into an electronically controlled drive part 57 and a mechanical drive part 58. The drive wheel 54, the first gear 55, the second gear 56, the motor 51, the drive wheel 52, and the transition wheel 53 belong to the electronically controlled drive part 57. The rotation shaft of the drive wheel 54 extends out of the electronically controlled drive part 57 and is connected to the mechanical drive part 58, so that the mechanical drive part 58 can drive the drive wheel 54 to rotate. The drive wheel 54, the first gear 55, the second gear 56, the motor 51, the drive wheel 52, and the transition wheel 53 constitute the gear set of this utility model.

[0105] The drain pan 2 is installed inside the drain box body 3 and can rotate circumferentially relative to the drain box body 3 along the rotating shaft 22 on the drain pan 2, and can also move back and forth along the axial direction. The rotating shaft 22 on the drain pan 2 extends out of the drain box cover 8 and cooperates with the electric control drive part 57, so that the electric control drive part 57 can drive the drain pan 2 to move.

[0106] Please see Figure 14 and Figure 15 As shown, in this embodiment, the drain pan 2 is provided with a boss 24, and the drain box body 3 is provided with a limiting rib 34. Thus, when the drain pan 2 rotates counterclockwise to the water seal state, the boss 24 on the drain pan 2 is restricted to point A by the limiting rib 34 on the drain box body 3, and the drain pan 2 cannot continue to rotate counterclockwise at this time; when the drain pan 2 rotates clockwise to the drain state, the boss 24 on the drain pan 2 is restricted to point B by the limiting rib 34 on the drain box body 3, and the drain pan 2 cannot continue to rotate clockwise at this time.

[0107] Furthermore, the drain pan 2 is rotatable about the rotation axis 22. Please refer to [link / reference]. Figures 16-19 As shown, the rotating shaft 22 has a square section 223 and a cylindrical section 224. The square hole 553 of the first gear 55 is engaged with the square section 223. When the first gear 55 rotates, it can drive the drain plate 2 to rotate synchronously. The round hole 564 of the second gear 56 is engaged with the cylindrical section 224 on the rotating shaft 22. The second gear 56 can rotate relative to the drain plate 2, thereby realizing that the rotating shaft 22 can be controlled to rotate by the first gear 55 and the second gear 56.

[0108] Furthermore, the second gear 56 has a wedge-shaped boss 561 on its end face facing the rotating shaft 22, and the rotating shaft 22 has an insert 221 on its end facing the second gear 56. The insert 221 has a rib 222 opposite to the wedge-shaped boss 561. The wedge-shaped boss 561 and the rib 222 of the insert 221 form a mating structure. When the first gear 55 and the second gear 56 rotate relative to each other, the rib 222 and the wedge-shaped boss 561 work together to drive the drain pan 2 to squeeze the sealing ring. The insert 221 can be made of copper, and the wedge-shaped boss 561 is located at the bottom of the round hole 564.

[0109] Furthermore, the wedge-shaped boss 561 has a high point 5611 and a low point 5613, which are connected by a ramp 5612. When the rib 222 engages with the high point 5611, it drives the drain pan 2 to compress the sealing ring; when the rib 222 engages with the low point 5613, it releases or reduces the compression of the sealing ring by the drain pan 2. The second gear 56 has a wedge-shaped boss 561 that is symmetrical about the center of the second gear 56. The two low points 5613 of the wedge-shaped boss 561 can form a groove 562. When the first gear 55 and the second gear 56 rotate synchronously, the rib 222 is confined within the groove 562.

[0110] When the second gear 56 rotates relative to the drain pan 2, the protruding rib 222 of the insert 221 can move along the slope 5612 of the wedge-shaped boss 561; specifically, when moving along the slope 5612 towards the high point 5611, the insert 221 can be pushed forward, and conversely, when moving along the slope 5612 towards the low point 5613, the insert 221 can be moved backward.

[0111] Furthermore, the first gear 55 is provided with a missing tooth section 551 and an annular groove 552, and the second gear 56 is provided with an annular rib 563. When the annular rib 563 abuts against the edge of the annular groove 552, the second gear 56 can drive the first gear 55 to rotate. When the drive wheel 54 drives the second gear 56 to rotate within a second preset angle range, the drive wheel 54 engages with the missing tooth section 551, causing the drive wheel 54 to disengage from the first gear 55. At this time, the drive wheel 54 only meshes with the second gear 56. When the drive wheel 54 drives the second gear 56 to rotate within a first preset angle range, when the annular rib 563 abuts against the edge of the annular groove 552, the second gear 56 can drive the first gear 55 to rotate, causing the first gear 55 to engage with the drive wheel 54. At this time, the drive wheel 54 meshes with both the first gear 55 and the second gear 56. To further explain, in this embodiment, the first gear 55 is a toothed gear and the second gear 56 is a full-tooth gear. A full-tooth gear means that the teeth of the gear evenly cover the entire outer ring of the gear, while a toothed gear means that one or more teeth are missing from the basis of a full-tooth gear. The first preset angle range refers to the angle through which the drain pan 2 rotates when switching between the water seal position and the drain position, and the second preset angle range refers to the angle through which the rib 222 of the insert 221 rotates when moving between the high point 5611 and the low point 5613 of the single wedge-shaped boss 561.

[0112] Please refer to Figure 10 As shown, the sealing ring is a sealing gasket 024, and the drain pan 2 or the drain box body 3 is provided with at least one annular rib 023 opposite to the sealing ring. When the drain pan 2 is in the water seal position, the annular rib 023 and the sealing ring are sealed together to form a sealed state. The figure shows the example of the drain box body 3 being provided with two annular ribs 023 spaced apart.

[0113] Please see Figure 10As shown, in the water seal state, the outlet of the drain pan 2 is in a vertically upward position. At this time, the toilet bowl 11 and the drain pan 2 form a U-shaped structure. When the brush ring solenoid valve 02 is opened, the flushing water sprayed from the brush ring nozzle 01 can gather at the bottom of the toilet 1 to form a water seal. The drain pan 2 cannot continue to rotate because it is limited by the drain box body 3, but the second gear 56 can continue to rotate relative to the drain pan 2. As the second gear 56 rotates, the protruding rib 222 of the insert 221 moves along the slope 5612 of the wedge-shaped boss 561 to the high point 5611 of the wedge-shaped boss 561. During the movement, the insert 221 is pushed forward along the axis, thereby pushing the drain pan 2 forward along the axis, so that the gap between the drain pan 2 and the drain box body 3 is reduced. The sealing gasket 024 placed between the drain pan 2 and the drain box body 3 is compressed by the annular rib 023 on the drain box body 3, thereby forming a seal between the inlet of the drain pan 2 and the drain box body 3, ensuring that the water seal formed at the bottom of the toilet 1 will not leak out.

[0114] Please see Figure 11 As shown, when the toilet of this utility model performs the flushing procedure, the brush ring solenoid valve 02 is opened first, and the flushing water sprayed from the brush ring nozzle 01 continuously flushes the toilet bowl surface 11, flushing the dirt on the toilet bowl surface 11 to the bottom of the toilet 1. The flushing water gathers in the toilet 1. After a certain period of time, the first drive component 5 drives the drain plate 2 to rotate, realizing the switch from the water seal state to the drain state.

[0115] When in the switching state, the first drive assembly 5 first drives the second gear 56 to rotate relative to the drain plate 2. At this time, the high point 5611 of the wedge-shaped boss 561 disengages from the rib 222 on the insert 221. Under the thrust of the water seal or the elastic force of the spring (not shown in the figure), the drain plate 2 retracts axially. The rib 222 of the insert 221 is located at the low point 5613 of the wedge-shaped boss 561. Due to the increased gap between the drain plate 2 and the drain box body 3, the sealing gasket 024 can no longer be compressed, thus releasing the sealing effect of the sealing gasket 024. Only after the sealing effect is released does the drain plate 2 begin to rotate, switching to the drain state.

[0116] Since the sealing gasket 024 is no longer in close contact with the drain pan 2 and the drain box body 3, the sealing gasket 024 will not generate additional friction force on the rotation switching of the drain pan 2, thereby ensuring a small switching torque. The switching function can be achieved with a smaller motor 51, which is low cost. The sealing gasket 024 will not be worn during the switching process, making the sealing effect more reliable in the water seal state.

[0117] This invention first switches the drain pan 2 to the water seal state before driving the second gear 56 to compress the sealing gasket 024 to form a seal. Similarly, it first drives the second gear 56 to release the sealing effect of the sealing gasket 024 before driving the drain pan 2 to switch to the drain state. Thus, during the process of forming and releasing the seal, the drain pan 2 and the drain box body 3, which cooperate with the sealing gasket 024, will not rotate relative to each other, and no friction will be generated. This reduces the torque required to drive the second gear 56 to rotate, and also reduces the wear on the wedge-shaped boss 561 on the second gear 56 and the rib 222 on the insert 221, making the function more reliable.

[0118] Please see Figure 12 As shown, when the drain pan 2 switches to the drain state, the outlet of the drain pan 2 is connected to the inlet of the drain pipe. Under the action of gravity, the water collected in the toilet 1 is quickly discharged from the drain pipe and carries away the waste. During the discharge process, the brush nozzle 01 continuously supplies water to continuously flush the toilet bowl surface 11. After the discharge is completed, the drain pan 2 rotates back to the water seal state under the drive of the first drive component 5. The brush nozzle 01 continues to supply water, and a water seal is re-formed at the bottom of the toilet 1. After the water seal is filled, the brush solenoid valve 02 is closed, and the flushing procedure is completed.

[0119] Please see Figure 20 and Figure 21 As shown, during the rotational switching of the drain pan 2 from a water-sealed state to a draining state or vice versa, the teeth of the first gear 55 and the second gear 56 overlap side-by-side and simultaneously mesh with the drive wheel 54. The drive wheel 54 can drive the first gear 55 and the second gear 56 to rotate synchronously. During this process, the protruding rib 222 of the insert 221 is always aligned with the low point 5613 of the wedge-shaped boss 561, and the drain pan 2 and the drain box body 3 are in a de-sealed state.

[0120] Please see Figure 22 and Figure 23 As shown, the drive wheel 54 rotates counterclockwise, causing the drain pan 2 to switch from the drain state to the water seal state. The drain pan 2 is then limited to point A by the drain box body 3 (e.g., ...). Figure 14 As shown, the drive wheel 54 can no longer rotate. At this time, the drive wheel 54 disengages from the first gear 55 due to the engagement with the missing tooth section 551 of the first gear 55, while the second gear 56 remains engaged with the drive wheel 54. If the drive wheel 54 continues to rotate counterclockwise, it can only drive the second gear 56 to rotate. The first gear 55, insert 221, and drain pan 2 will no longer rotate. In this way, the second gear 56 will rotate relative to the first gear 55, insert 221, and drain pan 2. The protruding rib 222 of the insert 221 can move from the low point 5613 to the high point 5611 along the slope 5612 of the wedge-shaped boss 561, and the teeth of the first gear 55 and the second gear 56 begin to misalign.

[0121] Please see Figure 24 and Figure 25 As shown, as the drive wheel 54 rotates counterclockwise, the protruding rib 222 of the insert 221 moves along the slope 5612 of the wedge-shaped boss 561 towards the high point 5611. Simultaneously, the insert 221 is pushed forward axially, thereby pushing the drain pan 2 forward axially, ultimately compressing the sealing gasket 024 to create a seal between the inlet of the drain pan 2 and the drain box body 3. Since the high point 5611 of the wedge-shaped boss 561 is a platform (e.g., ... Figure 19 As shown), after the protruding rib 222 of the insert 221 moves to this high point 5611, it cannot return to the low point 5613 without external force, thus ensuring that the sewage discharge device of this utility model can maintain the sealing state of the compression sealing gasket 024.

[0122] When the seal is released (i.e., by Figure 24 , Figure 25 Rotate to Figure 20 , Figure 21 The drive wheel 54 first rotates clockwise, causing the second gear 56 to rotate relative to the first gear 55, the insert 221, and the drain pan 2. The protruding rib 222 of the insert 221 can then disengage from the high point 5611 of the wedge-shaped boss 561 on the second gear 56 and move along the slope 5612 towards the low point 5613. The drain pan 2 can then retract axially, thus releasing the seal. As the second gear 56 rotates relative to the first gear 55, the annular protruding rib 563 on the second gear 56 also moves within the annular groove 552 on the first gear 55. When they move to abut against point C (e.g., ...), ... Figure 23 As shown), the protruding rib 222 of the insert 221 moves to the low point 5613 directly opposite the wedge-shaped boss 561, and the teeth of the first gear 55 and the second gear 56 overlap side by side again (as shown). Figure 22 , Figure 23 As shown). When the drive wheel 54 continues to rotate clockwise, driving the second gear 56 to rotate, the annular rib 563 of the second gear 56 can push the first gear 55 to start rotating synchronously, so that the first gear 55 can re-engage with the drive wheel 54 (as shown). Figure 20 , Figure 21 (As shown).

[0123] In summary, this utility model has a simple overall structure. The drain pan 2 is designed to rotate axially and move forward and backward axially, with a sealing ring between the drain pan 2 and the drain box body 3. When the drain pan 2 is in a water-sealed state, driving it forward compresses the sealing ring, creating a seal between the drain pan 2 inlet and the drain box body 3. This reliable seal ensures a water seal at the bottom of the toilet 1 to prevent odors. When the drain pan 2 is in a switching state, it retracts, releasing the seal between the drain pan 2 and the drain box body 3. This prevents additional friction between them due to the sealing ring, resulting in a small switching torque. A smaller motor 51 can be used to achieve the switching function, reducing cost. The sealing ring also does not wear during switching, further ensuring the sealing effect in the water-sealed state after long-term use. The structure is simple and the function is reliable.

[0124] It should be understood that the various examples described above can be utilized in multiple directions, such as tilted, inverted, horizontal, vertical, etc., and in multiple configurations, without departing from the principles of this invention. The embodiments shown in the accompanying drawings are merely examples of effective application of the principles of this invention, and this invention is not limited to any specific details of these embodiments.

[0125] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A toilet flushing device structure, installed on a toilet, wherein the toilet has a water seal chamber, characterized in that, include: The system includes a drain tray and a drain box body. The drain tray is rotatable relative to the drain box body, switching between a water seal position and a drain position. A sealing ring is provided between the drain tray and the drain box body. When the drain tray switches to the water seal position, it moves along the drain tray axis in a first direction, compressing the sealing ring. During the process of switching the drain tray from the water seal position to the drain position or from the drain position to the water seal position, the drain tray moves along the drain tray axis in a second direction, releasing or reducing the compression on the sealing ring.

2. The toilet flushing device structure as described in claim 1, characterized in that: It also includes a first drive mechanism, which drives the drain pan to switch between the water seal position and the drain position.

3. The toilet flushing device structure as described in claim 2, characterized in that: The first driving mechanism is any one of a motor, a pneumatic cylinder, or a hydraulic cylinder.

4. The toilet flushing device structure as described in claim 2, characterized in that: The first driving mechanism includes a driving wheel, a first gear, and a second gear. The drain pan is provided with a rotating shaft. The first gear and the second gear are mounted side by side on the rotating shaft. The driving wheel selectively engages with the first gear and remains engaged with the second gear. When the driving wheel drives the second gear to rotate within a first preset angle range, the first gear and the second gear rotate synchronously. The first gear drives the drain pan to switch between a water seal position and a drain position. When the driving wheel drives the second gear to rotate within a second preset angle range, the second gear rotates relative to the first gear. The second gear drives the drain pan to compress the sealing ring or release or reduce the compression on the sealing ring.

5. The toilet flushing device structure as described in claim 4, characterized in that: The first drive mechanism further includes a motor, a drive wheel, and a transition wheel. The drive wheel is mounted on the drive shaft of the motor, and the transition wheel meshes with the drive wheel and the drive wheel, respectively.

6. The toilet flushing device structure as described in claim 4, characterized in that: The second gear has a wedge-shaped boss on its end face facing the rotating shaft, and the rotating shaft has a rib opposite to the wedge-shaped boss at its end facing the second gear. When the first gear and the second gear rotate relative to each other, the rib and the wedge-shaped boss cooperate to drive the drain pan to squeeze the sealing ring. The wedge-shaped boss has a high point and a low point, which are connected by a ramp. When the rib cooperates with the high point, it drives the drain pan to squeeze the sealing ring. When the rib cooperates with the low point, it releases or reduces the squeezing of the sealing ring by the drain pan.

7. The toilet flushing device structure as described in claim 4, characterized in that: The first gear has a missing tooth section and an annular groove, and the second gear has an annular rib. When the drive wheel drives the second gear to rotate within a second preset angle range, the drive wheel engages with the missing tooth section, causing the drive wheel to disengage from the first gear. At this time, the drive wheel only meshes with the second gear. When the drive wheel drives the second gear to rotate within a first preset angle range, the annular rib abuts against the edge of the annular groove, and the second gear can drive the first gear to rotate, causing the first gear to engage with the drive wheel. At this time, the drive wheel meshes with both the first and second gears.

8. The structure of a toilet flushing device as described in claim 1, characterized in that: It also includes a limiting ring, which is sleeved on the drain pan. The drain pan has at least one first wedge-shaped protrusion on the side facing away from the water seal chamber, and the limiting ring has at least one second wedge-shaped protrusion on the side facing the water seal chamber. The first wedge-shaped protrusion and the second wedge-shaped protrusion abut against each other, so that the drain pan can move along the drain pan axis in a first direction and squeeze the sealing ring; the first wedge-shaped protrusion and the second wedge-shaped protrusion can separate, so that the drain pan can move along the drain pan axis in a second direction.

9. The structure of a toilet flushing device as described in claim 1, characterized in that: It also includes a limiting ring, which is sleeved on the drain pan. One of the drain pan and the limiting ring is provided with a wedge-shaped boss, and the other of the drain pan and the limiting ring is provided with a mating surface. The drain pan can be moved along the axial direction of the drain pan by moving the mating surface at the high point and the low point of the wedge-shaped boss.

10. The structure of a toilet flushing device as described in any one of claims 1 to 9, characterized in that: The sealing ring is an O-ring, a Y-ring, or a sealing gasket; the toilet has a first drain pipe below the water seal chamber, the water seal chamber has a first drain outlet, the drain box body has a drain inlet, a second drain pipe, and a tray chamber, the drain inlet is sealed and connected to the first drain outlet, the first drain pipe is sealed and connected to the second drain pipe, the drain tray is installed in the tray chamber, the upper end of the drain tray has a drain outlet, the drain outlet is selectively connected to the second drain pipe, and the water inlet of the drain tray is connected to the first drain outlet of the water seal chamber.

11. The structure of a toilet flushing device as described in claim 1, characterized in that: It also includes a second drive mechanism, which drives the drain pan to move along the axial direction of the drain pan; the second drive mechanism is any one of a motor, a cylinder or a hydraulic cylinder.

12. The structure of a toilet flushing device as described in claim 1, characterized in that: The drain pan or drain box body is provided with at least one annular rib that is opposite to the sealing ring. When the drain pan is in the water seal position, the annular rib and the sealing ring are sealed together.

13. A toilet structure, characterized in that, The toilet is equipped with a structure as described in any one of claims 1 to 12.

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