A toilet flushing mechanism and a toilet

Abstract

The utility model belongs to the technical field of bathroom sanitary wares, concretely is a kind of toilet sewage mechanism and closestool.The sewage mechanism includes connecting flange, is connected with closestool sewage outlet;Water trap, its first end is rotatably connected with connecting flange dynamic seal by rotary sealing element;Flexible bend pipe, connecting water trap second end;Fixed tube, fixed closestool cavity body and connect flexible bend pipe;Displacement sewage pipe, with fixed tube second end seal connection;Drive device, its output end is drivingly connected with water trap;Drive device controls water trap and switches between vertical water seal state and 90 ° dumping state.The structure design exempts the sealing box structure necessary for existing rotary water trap, avoids the health risk of sewage stagnation and bacteria in box interior;When water trap is dumped, break the high hydrostatic pressure area of existing fixed water trap, combined with downwardly inclined continuous sewage passage, reduce water flow resistance and jet noise;Overall structure is not only simple and practical, reduce manufacturing cost and failure rate, also improve maintenance convenience.

Description

Technical Field

[0001] This utility model belongs to the field of sanitary ware technology, specifically a toilet sewage discharge mechanism and a toilet. Background Technology

[0002] Currently, mainstream smart electric toilets use either a water tank with pump flushing or dual solenoid valves for electro-dynamic pressure flushing. These technologies utilize a fixed ceramic water trap to achieve a water seal and prevent odors. While this structure provides basic odor control, it has significant drawbacks in practical use: the large water depth in the curved section of the fixed water trap creates high water flow resistance during flushing, forcing the toilet to rely on high-pressure jets to complete the flushing process. This not only results in excessive flushing noise but also increases energy consumption. To address this water resistance issue, existing improvements employ a rotating water trap flushing structure. However, this structure introduces new technical challenges. To ensure the sealing of the rotating components, an additional sealed housing must enclose the entire rotating mechanism, meaning the water trap can only empty within this closed housing. This enclosed design creates dead zones where wastewater can stagnate, leading to bacterial growth and hygiene problems that are difficult to clean thoroughly. Furthermore, the added sealed housing significantly increases the overall structural complexity, increasing manufacturing costs and making daily maintenance more difficult. To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0003] The purpose of this utility model is to provide a toilet flushing mechanism that has the advantages of reducing flushing water flow resistance, reducing dead corners for hygiene, simplifying structure and improving sealing reliability.

[0004] This utility model adopts the following technical solution: a toilet drain mechanism, including a connecting flange for sealing connection with the toilet drain outlet; a water trap, the first end of which is dynamically sealed and rotatably connected to the connecting flange via a rotary seal; a movable bend, the first end of which is sealed and connected to the second end of the water trap; a fixed pipe, fixedly installed in the toilet cavity, the first end of which is connected to the second end of the movable bend; a shift drain pipe, the inlet end of which is sealed and connected to the second end of the fixed pipe; and a drive device, the output end of which is driven and connected to the water trap; wherein, the drive device drives the water trap to rotate and switch between a first position and a second position; when in the first position, the water trap is in a vertical state to form a water seal, and the movable bend is in a fan-shaped extended state; when in the second position, the water trap rotates at an angle greater than 90° to a tilted state, and the movable bend is in an axially compressed state to form a downwardly inclined continuous drain channel.

[0005] Furthermore, the rotary seal is a rotary sealing ring disposed on the outer wall of the connecting flange, and the inner wall of the water trap is in dynamic sealing contact with the first rotary sealing ring.

[0006] Furthermore, the flexible bend is an elastic telescopic hose; when the water trap rotates from the first position to the second position, the flexible bend simultaneously undergoes a fan-shaped circular trajectory movement and transitions from a stretched state to a compressed state.

[0007] Furthermore, the diameter of the water trap gradually increases from its first end to its second end.

[0008] Furthermore, the shifted sewage pipe includes a horizontal regulating pipe, a connecting sleeve, and a connecting bend connected in sequence. The inlet end of the horizontal regulating pipe is connected to the second end of the fixed pipe, the rear end of the horizontal regulating pipe is sealed and slidably connected to the connecting sleeve, the horizontal regulating pipe moves axially along the connecting sleeve to adjust the horizontal length, and the rear end of the connecting bend is connected to the underground sewage pipe.

[0009] Furthermore, the drive device includes a motor drive unit and a manual drive unit, the motor drive unit being connected to the water trap drive; the manual drive unit includes an operating component located on the upper part of the toilet, the operating component being connected to the water trap drive.

[0010] Furthermore, the motor drive unit includes a motor, the output end of which is provided with a drive shaft with a non-circular cross section, and the water trap is provided with a snap-fit ​​groove that matches the shape of the drive shaft. The drive shaft is inserted into the snap-fit ​​groove to form a circumferential limiting transmission.

[0011] Furthermore, a connector is provided on the outer wall of the fixed pipe, and the connector is fixedly connected to the inner wall of the toilet body.

[0012] Furthermore, the drive unit also includes a driver housing, which is connected to a connecting flange, and the drive shaft passes through the driver housing and engages with a snap-fit ​​groove.

[0013] This utility model also provides a toilet, including a toilet body, a control unit, and a toilet flushing mechanism of any one of the above. The control unit is electrically connected to the toilet flushing mechanism. The upper edge of the pot of the toilet body is provided with a side flushing outlet; or the upper front edge of the toilet body is provided with a water-dividing tee outlet, the middle outlet of the water-dividing tee outlet points to the drain outlet, and the two side outlets of the water-dividing tee outlet are inclined towards the pot seat of the toilet body for brushing along the inner wall.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention controls the water trap to rotate between a vertical water seal state and a tilted state greater than 90° via a drive device. Combined with the dynamic deformation of the flexible bend, it forms a continuous drainage channel, eliminating the need for the sealed housing structure required in existing rotating water traps and effectively avoiding the hygiene risks of sewage retention and bacterial growth inside the housing. Simultaneously, when the water trap is tilted, it breaks the high static water pressure zone of existing fixed water traps, and the downward-sloping continuous drainage channel significantly reduces water flow resistance and jet noise. The overall structure is not only simple and practical, reducing manufacturing costs and failure rates, but also improves maintenance convenience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the toilet sewage discharge mechanism of this utility model when it is in the first position;

[0018] Figure 2 This is a front view of the toilet drain mechanism of this utility model in the first position;

[0019] Figure 3 This is a three-dimensional structural diagram of the toilet sewage discharge mechanism of this utility model when it is in the second position;

[0020] Figure 4 This is an exploded structural diagram of the toilet drain mechanism of this utility model when it is in the second position;

[0021] Figure 5 This is a three-dimensional structural diagram of the shifted sewage pipe in this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the toilet sewage discharge mechanism of this utility model installed on the toilet;

[0023] Figure 7 This is a three-dimensional structural diagram of the water outlet of the water-dividing tee fitting in this utility model;

[0024] The components are: 1-connecting flange, 2-toilet drain outlet, 3-water trap, 31-clamping groove, 4-rotary seal, 5-swivel bend, 6-fixed pipe, 61-connector, 7-toilet body, 71-side flush outlet, 72-water outlet of tee fitting, 720-center outlet, 721-side outlet, 8-shifting drain pipe, 81-horizontal adjustment pipe, 82-connecting sleeve, 83-connecting bend, 9-drive device, 91-motor drive unit, 910-motor, 911-drive shaft, 92-manual drive unit, 920-toggle operation piece, 93-driver housing. Detailed Implementation

[0025] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] The following is in conjunction with the appendix Figure 1 To be continued Figure 7 The present invention will be described in detail with reference to specific embodiments.

[0027] This utility model provides a toilet drain mechanism, including a connecting flange 1 for sealing connection with the toilet drain outlet 2; a water trap 3, the first end of which is dynamically sealed and rotatably connected to the connecting flange 1 via a rotary seal 4; a movable bend 5, the first end of which is sealed and connected to the second end of the water trap 3; a fixed pipe 6, fixedly installed in the cavity of the toilet 7, the first end of which is connected to the second end of the movable bend 5; a shifting drain pipe 8, the inlet end of which is sealed and connected to the second end of the fixed pipe 6; and a driving device 9, the output end of which is driven and connected to the water trap 3. The driving device 9 drives the water trap 3 to rotate and switch between a first position and a second position. When in the first position, the water trap 3 is in a vertical state forming a water seal, and the movable bend 5 is in a fan-shaped extended state. When in the second position, the water trap 3 rotates at an angle greater than 90° to a tilted state, and the movable bend 5 is in an axially compressed state forming a downwardly inclined continuous drain channel.

[0028] Among them, the connecting flange 1 refers to the sealing component that is directly connected to the toilet drain outlet 2; the rotary seal refers to the device that allows the trap 3 to maintain a seal when rotating, preventing sewage leakage and reducing frictional resistance. The flexible bend 5 refers to the pipe that can change shape with the movement of the trap 3, automatically adjusting its extension or compression state when the trap 3 rotates. The fixed pipe 6 refers to the pipe that is rigidly connected to the toilet body 7, which can be implemented using rigid pipe materials, used to stably connect the flexible bend 3 and the shift drain pipe 8. The drive device 9 refers to the actuator that controls the rotation of the trap 3, driving the trap 3 to switch angles.

[0029] Specifically, in the non-flushing state, the drive device 9 controls the water trap 3 to remain vertical. At this time, an inverted U-shaped water seal structure is formed inside the water trap 3 to prevent odor backflow, and the flexible bend 5 is in a naturally extended state to maintain pipeline stability. When flushing is initiated, the drive device 9 drives the water trap 3 to rotate more than 90°, switching it from a vertical state to a tilted state. At this time, the water accumulated in the water trap 3 is drained, and the water flow resistance in the bend is eliminated. Simultaneously, the flexible bend 5 is axially compressed due to rotational traction, forming a downward-sloping continuous channel, which, together with the fixed pipe 6 and the shifted drain pipe 8, constitutes an unobstructed drainage path. The continuous drainage channel in the tilted state significantly reduces the water pressure required for flushing, thereby reducing flushing noise.

[0030] This solution restricts rotational movement to the drain port connection point through the direct engagement of the rotary seal 4 and the connecting flange 1, eliminating the need for an additional sealing housing. This not only eliminates hard-to-clean corners inside the housing but also simplifies the overall mechanical structure. Furthermore, the adaptive shape of the flexible bend 5 replaces the traditional multi-segment hinged structure, reducing manufacturing costs while improving the reliability of draining.

[0031] Through the above technical solutions, this application achieves rapid switching between odor-proof and low-resistance sewage discharge modes for the water trap structure. The water seal function in the vertical state effectively isolates odors, while the continuous sewage discharge channel in the tilted state significantly reduces water flow resistance, allowing sewage discharge without relying on high-pressure flushing, thus reducing flushing noise. The direct fit between the rotary seal 4 and the connecting flange 1 eliminates the need for a sealed housing, eliminating hygiene hazards and reducing maintenance complexity. The adaptive shape of the flexible bend 5 ensures the continuity of the sewage discharge channel, further improving sewage discharge efficiency. The overall structure is not only streamlined and practical, reducing manufacturing costs and failure rates, but also improves maintenance convenience.

[0032] For details, please refer to Figure 4In this embodiment, the rotary seal 4 is a rotary sealing ring disposed on the outer wall of the connecting flange, and the inner wall of the water trap 3 dynamically seals against the rotary sealing ring. The rotary sealing ring is an annular elastic sealing element, specifically made of rubber or silicone, and is fixed to the outer wall of the connecting flange by an interference fit, forming a radial compression contact surface. When the water trap 3 rotates, the sealing ring compensates for the movement gap through elastic deformation, maintains the contact pressure, and prevents sewage from seeping into the rotating interface, achieving dynamic sealing and leak prevention during the rotation of the water trap 3. The structure is simple and reliable, with low manufacturing and maintenance costs.

[0033] For details, please refer to Figures 1 to 6 In this embodiment, the flexible elbow 5 is an elastic telescopic hose. When the water trap 3 rotates from the first position to the second position, the flexible elbow 5 simultaneously undergoes a fan-shaped circular trajectory movement, transitioning from a stretched state to a compressed state. The elastic telescopic hose refers to a tubular structure made of elastic material with axial expansion and contraction capabilities. Specifically, it can be implemented using a corrugated pipe or a silicone hose. Its elastic deformation capability allows the flexible elbow to adaptively adjust its length and bending angle during the rotation of the water trap. The fan-shaped circular trajectory movement refers to the arc-shaped movement of the second end of the flexible elbow 5 with the first end of the fixed pipe 6 as a fixed point as it rotates with the water trap 3. This trajectory ensures that the flexible elbow 5 forms a continuously inclined drainage channel in the compressed state.

[0034] Specifically, when the trap 3 is in the first position, the flexible bend 5 is stretched to maintain the vertical state of the trap. When the trap 3 is driven to rotate to the second position, the flexible bend 5 moves synchronously in a fan-shaped trajectory with the direction of movement of the trap 3. The elastic flexible hose shortens under the action of axial compression force, and its wall wrinkles and contracts, forming a downward-sloping continuous channel in the trap 3. During this process, the flexible bend 5 compensates for the spatial displacement caused by the rotation of the trap 3 through elastic deformation, while maintaining a sealed connection with the trap 3 and the fixed pipe 6 through its own elasticity. It does not require an external sealing box to enclose the moving parts, and the overall structure is simple and convenient.

[0035] For details, please refer to Figures 1 to 4 In this embodiment, the diameter of the water trap 3 gradually increases from its first end to its second end. This gradual increase in diameter means that the inner diameter of the water trap 3 continuously expands from the first end connected to the connecting flange 1 to the second end connected to the flexible bend 5, which can be achieved using a tapered pipe structure. This design, through its gradually expanding diameter, allows the fluid to diffuse gradually during flow, resulting in a smoother flow velocity distribution. Simultaneously, it creates a certain drainage slope at the lowest point of the second end of the water trap 3, further accelerating the discharge of waste.

[0036] For details, please refer to Figures 1 to 5In this embodiment, the shifted sewage pipe 8 includes a horizontal adjusting pipe 81, a connecting sleeve 82 and a connecting bend 83 connected in sequence. The inlet end of the horizontal adjusting pipe 81 is connected to the second end of the fixed pipe 6. The rear end of the horizontal adjusting pipe 83 is sealed and slidably connected to the connecting sleeve 82. The horizontal adjusting pipe 83 moves axially along the connecting sleeve 82 to adjust the horizontal length. The rear end of the connecting bend 83 is connected to the underground sewage pipe.

[0037] The horizontal section of the horizontal adjusting pipe 8 is slidably fitted inside the connecting sleeve 82 with a sealing rubber sleeve to achieve stepless adjustment of the horizontal length of the sewage channel. The connecting sleeve 82 is a tubular component with a sliding guide structure, which can be made of PVC material and a sealing ring. It provides the basic structure for axial sliding adjustment of the horizontal adjusting pipe 81. The connecting bend 83 is a pipe component with a bending angle, which can be manufactured by injection molding. It is used to realize the turning link between the sewage channel and the underground sewage pipe. This shifted sewage pipe 8 solves the problem of limited adjustment of the horizontal length of the sewage pipe when the toilet is relocated and installed, and realizes a flexible and sealed connection between the sewage channel and the underground sewage pipe.

[0038] For details, please refer to Figures 1 to 4 In this embodiment, the driving device 9 includes a motor driving unit 91 and a manual driving unit 92. The motor driving unit 91 is driven and connected to the water trap 3. The manual driving unit 92 includes a toggle operation member 920 located on the upper part of the toilet. The toggle operation member 920 is driven and connected to the water trap 3.

[0039] The motor drive unit 91 is a component that rotates the water trap 3 via electric power, while the manual drive unit 92 is a component that rotates the water trap 3 via manual operation, thus providing an emergency operation function in case of power failure or motor malfunction. The toggle operation component 920 is located in an easily accessible area on the upper part of the toilet, such as the side of the toilet seat or the top of the tank, thereby optimizing ease of operation. The two drive methods operate independently, with the motor drive unit 91 prioritizing automated operation, while the manual drive unit 92 serves as a backup system and is only activated when necessary.

[0040] Compared to existing technologies, current toilet flushing mechanisms typically only have a single drive method, such as relying solely on motor drive or manual drive, which poses reliability risks and cannot adapt to diverse usage scenarios. This solution, through a dual-mode drive design, retains the automation function while optimizing the placement of the manual toggle switch 920 in an easily accessible area. This avoids the risk of failure from a single drive method and improves ease of operation.

[0041] For details, please refer to Figures 1 to 4In this embodiment, the motor drive unit 91 includes a motor 910. The output end of the motor 910 is provided with a drive shaft 911 with a non-circular cross section. The water trap 3 is provided with a snap-fit ​​groove 31 that matches the shape of the drive shaft 911. The drive shaft 911 is inserted into the snap-fit ​​groove 31 to form a circumferential limiting transmission.

[0042] The non-circular cross-section drive shaft 911 refers to a transmission shaft with a polygonal or irregular cross-section, specifically a rectangular, hexagonal, or capsule-shaped cross-section. Its shape matches the locking groove 31, forming a circumferential limit to prevent relative rotation during transmission. The locking groove 31 is a groove at the end of the water trap 3 that matches the cross-sectional shape of the drive shaft 911. It can be formed by injection molding or machining. The tight fit between the drive shaft 911 and the groove enables direct power transmission between the drive device 9 and the water trap 3, improving transmission reliability and maintenance convenience.

[0043] For details, please refer to Figures 1 to 4 In this embodiment, a connector 61 is provided on the outer wall of the fixed pipe 6, and the connector 61 is fixed to the inner wall of the toilet body 7. The connector 61 is a mechanical structure used to establish a rigid connection between the fixed pipe 6 and the toilet body 7. Specifically, it can be implemented by a metal bracket or an injection-molded snap-fit ​​structure. Its function is to ensure the overall stability of the sewage discharge mechanism during dynamic switching through rigid connection and to prevent vibration and displacement caused by the rotation of the water trap 3.

[0044] For details, please refer to Figures 1 to 4 In this embodiment, the drive device 9 also includes a driver mounting housing 93, which is connected to the connecting flange 1. The drive shaft 911 passes through the driver mounting housing 93 and engages with the snap-fit ​​groove 31. The driver mounting housing 93 refers to the housing structure used to fix the drive device 9. It can be made of metal or engineering plastic and is rigidly connected to the connecting flange 1 by bolts or clips to form axial support for the drive shaft 911.

[0045] In some specific embodiments, the drive housing 93 and the connecting flange 1 can be fixed together by flange bolts. The design of the drive shaft 911 passing through the drive housing 93 ensures transmission accuracy and reduces maintenance difficulty.

[0046] For details, please refer to Figure 7This utility model also provides a toilet, including a toilet body 7, a control unit (not shown in the figure), and a toilet flushing mechanism of any of the above. The control unit is electrically connected to the toilet flushing mechanism. The upper edge of the pot of the toilet body 7 is provided with a side flushing outlet 71; or the upper front edge of the toilet body 7 is provided with a water-dividing tee outlet 72, the middle outlet 720 of the water-dividing tee outlet 72 points to the sewage outlet, and the two side outlets 721 of the water-dividing tee outlet 72 are inclined towards the pot seat of the toilet body 7 for brushing along the inner wall. This toilet includes all the technical solutions of the toilet flushing mechanism of the roller crusher, which will not be described in detail here.

[0047] In one embodiment, the side flush outlet 71 refers to a water outlet structure located on the upper edge of the toilet bowl. Specifically, it can be implemented using multiple spray holes distributed circumferentially along the bowl, used to spray water directly into the drain area when the trap 3 is tilted. In another embodiment, the water outlet 72 of the tee fitting refers to a tee structure located on the upper front edge of the toilet. The middle outlet 720 is aligned with the drain to form the main flushing channel, while the two side outlets 721 are angled towards the inner wall of the seat to form auxiliary flushing channels. When the trap is rotated to the tilted position, the drain channel is continuously tilted, allowing for effective flushing even under low water pressure through the side flush outlet 71 or the water outlet 72 of the tee fitting.

[0048] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A toilet flushing mechanism, characterized in that: include A connecting flange is used for a sealed connection with the toilet drain outlet; The water trap has its first end rotatably and dynamically sealed to the connecting flange via a rotary seal. A flexible bend, the first end of which is sealed to the second end of the water trap; A fixed pipe is fixedly installed inside the toilet cavity, with its first end connected to the second end of the flexible bend pipe. The inlet end of the shifted sewage pipe is sealed to the second end of the fixed pipe; The drive device, the output end of which is connected to the water trap; The driving device drives the water trap to rotate between a first position and a second position. When in the first position, the water trap is in a vertical state to form a water seal, and the flexible bend is in a fan-shaped extended state. When in the second position, the water trap rotates at an angle greater than 90° to a tilted state, and the flexible bend is in an axially compressed state to form a downwardly inclined continuous sewage discharge channel.

2. The toilet flushing mechanism according to claim 1, characterized in that: The rotary seal is a rotary sealing ring disposed on the outer wall of the connecting flange, and the inner wall of the water trap is in dynamic sealing contact with the rotary sealing ring.

3. The toilet flushing mechanism according to claim 1, characterized in that: The flexible bend is an elastic telescopic hose; when the water trap rotates from the first position to the second position, the flexible bend simultaneously undergoes a fan-shaped circular trajectory movement and changes from a stretched state to a compressed state.

4. The toilet flushing mechanism according to claim 1, characterized in that: The diameter of the water trap gradually increases from its first end to its second end.

5. The toilet flushing mechanism according to claim 1, characterized in that: The shifted sewage pipe includes a horizontal regulating pipe, a connecting sleeve, and a connecting bend connected in sequence. The inlet end of the horizontal regulating pipe is connected to the second end of the fixed pipe. The rear end of the horizontal regulating pipe is slidably connected to the connecting sleeve. The horizontal regulating pipe moves axially along the connecting sleeve to adjust the horizontal length. The rear end of the connecting bend is connected to the underground sewage pipe.

6. The toilet flushing mechanism according to claim 1, characterized in that: The driving device includes a motor driving unit and a manual driving unit. The motor driving unit is driven and connected to the water trap. The manual driving unit includes a toggle operation component located on the upper part of the toilet. The toggle operation component is driven and connected to the water trap.

7. The toilet flushing mechanism according to claim 6, characterized in that: The motor drive unit includes a motor, and the output end of the motor is provided with a drive shaft with a non-circular cross section. The water trap is provided with a snap-fit ​​groove that matches the shape of the drive shaft. The drive shaft is inserted into the snap-fit ​​groove to form a circumferential limiting transmission.

8. The toilet flushing mechanism according to claim 1, characterized in that: The outer wall of the fixed tube is provided with a connector, which is fixedly connected to the inner wall of the toilet body.

9. The toilet flushing mechanism according to claim 7, characterized in that: The drive device also includes a driver mounting housing, which is connected to the connecting flange, and the drive shaft passes through the driver mounting housing and engages with the snap-fit ​​groove.

10. A toilet, characterized in that: The toilet includes a toilet body, a control unit, and a toilet flushing mechanism as described in any one of claims 1 to 9. The control unit is electrically connected to the toilet flushing mechanism. The upper edge of the pot of the toilet body is provided with a side flushing outlet; or the upper front edge of the toilet body is provided with a water-dividing tee outlet, the middle outlet of the water-dividing tee outlet points to the drain outlet, and the two side outlets of the water-dividing tee outlet spray water at an angle toward the pot seat of the toilet body to brush along the inner wall.

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