Silent pollution discharge structure of toilet bowl

Abstract

The utility model belongs to the technical field of closestools, and relates to a mute sewage discharge structure of a closestool, which comprises a sewage discharge box body, a corrugated pipe is arranged in the sewage discharge box body, one end of the corrugated pipe is fixedly connected with a sewage discharge port, the other end of the corrugated pipe is suspended in the sewage discharge box body, one side of the corrugated pipe is provided with a swing rod, and the other side of the corrugated pipe is provided with a spring. One end of the swing rod is in transmission connection with the driving shaft, the other end of the swing rod is connected with the suspended end of the corrugated pipe, a reset torsion spring for driving the corrugated pipe to automatically return to the water seal state when external force stops is arranged between the driving shaft and the sewage discharging box body, and the outer end of the driving shaft is sleeved with a driving gear. A driving rack capable of being in meshing transmission with the driving gear is arranged below the driving gear, the driving rack is driven by a power device to horizontally slide, and in the initial state, the driving rack and the driving gear are in a disengaged state. The mute sewage discharge structure of the toilet bowl has the advantages of being low in discharge noise and convenient to operate manually.

Description

Technical Field

[0001] This utility model belongs to the technical field of toilets and relates to a silent sewage discharge structure for a toilet. Background Technology

[0002] The current toilets are mainly siphon toilets, which generate a lot of noise during use due to the siphon effect, affecting the user experience.

[0003] A direct-flush toilet is a sanitary device that directly discharges waste through a direct-flush pipe. Due to its simple structure and low water consumption, it is widely used. For example, Chinese invention patent application CN117488928A (publication date: 2024.02.02) includes a housing with an inlet and a outlet distributed vertically on one side. Inside the housing is a curved pipe driven by a power device to rotate. One end of the curved pipe is a stationary end connected to the inlet, with its port axis coaxial with the pipe's rotation axis. The other end is a movable end that rotates around the rotation axis. The curved pipe switches between a closed state and a discharge state. When the curved pipe is in the closed state, the movable end is higher than the stationary end, forming a water seal within the pipe. When the curved pipe is in the discharge state, the movable end is lower than the stationary end and connects to the outlet.

[0004] The aforementioned direct-flush toilet uses a motor to drive the bend in the flushing pipe to switch between flushing states. The motor shaft is always connected to the transmission structure, making it unusable during power outages. Besides purely motor-driven structures, existing technologies also include structures powered by water pressure, which are also unusable during water outages. Both of these drive systems are rigidly connected. When manual operation is required, the existing drive structure (motor, water pressure return spring) must be rotated, requiring considerable force. This makes operation very difficult for the elderly, children, or women with less strength. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a silent sewage discharge structure for a toilet, which has the advantages of low discharge noise and convenient manual operation.

[0006] To solve the above-mentioned technical problems, the objective of this utility model is achieved through the following technical solution:

[0007] A silent sewage discharge structure for a toilet includes a sewage discharge device connecting the toilet's drain outlet and the drain inlet. The sewage discharge device includes a sewage discharge tank, within which a corrugated pipe is installed. One end of the corrugated pipe is fixedly connected to the drain outlet, and the other end is suspended within the sewage discharge tank. A rocker arm is installed on one side of the corrugated pipe, with one end of the rocker arm connected to a drive shaft and the other end connected to the suspended end of the corrugated pipe. A return torsion spring is installed between the drive shaft and the sewage discharge tank, which automatically returns the corrugated pipe to a water-sealed state when the external force stops. A drive gear is fitted onto the outer end of the drive shaft, and a drive rack is installed below the drive gear, capable of meshing with it. The drive rack is driven horizontally by a power device, and initially, the drive rack is disengaged from the drive gear.

[0008] In the aforementioned silent sewage discharge structure of a toilet, the corrugated pipe is a rubber corrugated pipe.

[0009] In the aforementioned silent sewage discharge structure of a toilet, preferably, when the sewage discharge device is in the closed state, the suspended end of the corrugated pipe rotates upward 90° from the horizontal position, and when the sewage discharge device is in the discharge state, the suspended end of the corrugated pipe rotates downward 30° from the horizontal position.

[0010] In the aforementioned silent sewage discharge structure of a toilet, the suspended end of the corrugated pipe is fitted with a clamp, and the swing rod is arranged parallel to the corrugated pipe and fixedly connected to the clamp.

[0011] In the silent sewage discharge structure of the toilet described above, the drive rack includes a first rack and a second rack arranged side by side. The first rack is driven by a motor, and the second rack is driven by a pull cable. In the initial state, both the first rack and the second rack are disengaged from the drive gear; the initial state is the closed state of the sewage discharge device.

[0012] In the silent sewage discharge structure of the toilet described above, a rack seat is provided on the outside of the sewage discharge box, and a first horizontal groove for sliding of a first rack and a second horizontal groove for sliding of a second rack are arranged in parallel inside the rack seat.

[0013] In the aforementioned silent sewage discharge structure of a toilet, the first rack is located outside the second rack, and the outer side of the first rack is provided with external teeth, which mesh with the drive gear mounted on the motor shaft for transmission.

[0014] In the aforementioned silent sewage discharge structure of a toilet, a strip-shaped groove is provided on the rack seat below the second rack. A pull cable seat fixedly connected to the second rack is slidably disposed in the strip-shaped groove. A spring seat opposite to the pull cable seat is provided at the bottom of the rack seat. A return spring fitted on the pull cable is provided between the pull cable seat and the spring seat. One end of the pull cable passes through the spring seat and is fixedly connected to the pull cable seat, and the other end is fixedly connected to the pull ring. The pull ring is installed on the side wall of the toilet through the pull ring seat.

[0015] In the aforementioned silent sewage discharge structure of a toilet, a cover is provided on the sewage tank, a vertical slide groove is provided on the inner side of the sewage tank, a flange is provided on the swing rod and assembled in the vertical slide groove, and a limiting block is provided on the cover and assembled in the vertical slide groove, the limiting block forming an upper limit structure for the flange.

[0016] In the above-mentioned silent sewage discharge structure of a toilet, the drive gear is provided with a gear protective cover, and the rack seat, motor and gear protective cover are provided with a drive protective cover; both the gear protective cover and the drive protective cover are fixed on the sewage discharge box.

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] 1. This utility model provides a silent sewage discharge structure for a toilet. The state of the sewage discharge device is switched by rotating the suspended end of the bellows up and down driven by a swing rod. During discharge, no siphon effect is generated, resulting in lower noise and a better user experience. The sewage discharge structure of this utility model creates a water seal in the closed state, effectively preventing odors. In the initial state, the drive rack and drive gear are disengaged. When power is off, manually rotating the drive gear will not cause the drive rack and motor shaft to move, thus facilitating manual operation.

[0019] 2. This utility model adopts a double rack structure, corresponding to two driving methods. The switching of the sewage discharge structure is mainly completed by the motor drive, but in the event of a power outage, it can still be manually driven by pulling the cable for normal sewage discharge. This utility model adopts a disengaged drive structure. When one rack drives the drive gear, the other rack does not mesh with the drive gear. Therefore, it is not necessary to drive the original drive device to rotate together during manual operation, thereby reducing the force required for drive and making it convenient to use. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3This is a perspective view of the transmission structure of this utility model;

[0023] Figure 4 This is another perspective view of the transmission structure of this utility model;

[0024] Figure 5 This is a perspective view (partial) of the transmission structure of this utility model;

[0025] Reference numerals in the attached diagram: 1. Sewage outlet; 2. Drain outlet; 3. Sewage tank; 4. Bellows; 5. Rocker arm; 6. Drive shaft; 7. Return torsion spring; 8. Drive gear; 9. First rack; 10. Second rack; 11. Motor; 12. Pull cable; 13. Rack seat; 14. External gear; 15. Drive gear; 16. Pull cable seat; 17. Spring seat; 18. Return spring; 19. Pull ring; 20. Pull ring seat; 21. Cover; 22. Flanged edge; 23. Limiting block. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-5 :

[0027] A silent sewage discharge structure for a toilet includes a sewage discharge device connecting the toilet's drain outlet 1 and the drain 2. The sewage discharge device includes a sewage discharge tank 3, inside which a corrugated pipe 4 is installed. One end of the corrugated pipe 4 is fixedly connected to the drain outlet 1, and the other end is suspended inside the sewage discharge tank 3. A swing rod 5 is provided on one side of the corrugated pipe 4. One end of the swing rod 5 is connected to a drive shaft 6, and the other end is connected to the suspended end of the corrugated pipe 4. The drive shaft 6 is driven to rotate by a power device and drives the suspended end of the corrugated pipe 4 to rotate via the swing rod 5 to switch the state of the sewage discharge device. When the suspended end of the corrugated pipe 4 is higher than the drain outlet 1, the sewage discharge device is in a closed state; when the suspended end of the corrugated pipe 4 is lower than the drain outlet 1, the sewage discharge device is in a discharging state.

[0028] In the initial state, the sewage discharge device is in a closed state, at which time the suspended end of the corrugated pipe 4 is higher than the sewage outlet 1. Water is replenished by the solenoid valve to create a water seal. When flushing is required, the power device drives the swing arm 5 to rotate around the axis of the drive shaft 6 through the drive shaft 6. The other end of the swing arm 5 drives the suspended end of the corrugated pipe 4 to rotate downwards until it is lower than the sewage outlet 1, and the sewage in the toilet is discharged. After the drainage is completed, the power device or the reset device drives the drive shaft 6 to rotate in the other direction. The drive shaft 6 drives the swing arm 5 to rotate in the other direction. The swing arm 5 drives the suspended end of the corrugated pipe 4 to rotate upwards to reset to the initial state. In this embodiment, when the sewage discharge device is in the closed state, the suspended end of the bellows 4 rotates upward 90° from the horizontal position; when the sewage discharge device is in the discharge state, the suspended end of the bellows 4 rotates downward 30° from the horizontal position; during sewage discharge, the swing rod 5 drives the bellows 4 to rotate from 90° upward to 30° downward; during reset, the swing rod 5 drives the bellows 4 to rotate from 30° downward to 90° upward.

[0029] In this embodiment, the bellows 4 is a rubber bellows.

[0030] In this embodiment, the suspension end of the corrugated pipe 4 is fitted with a clamp, and the swing rod 5 is arranged parallel to the corrugated pipe 4 and fixedly connected to the clamp. The swing rods 5 are arranged in pairs and distributed on both sides of the corrugated pipe 4. One swing rod 5 is connected to the drive shaft 6, and the other swing rod 5 is driven. Of course, the other swing rod 5 can also be connected to the drive driven shaft. The sewage tank 3 is covered with a cover 21. The inner side of the sewage tank 3 is provided with a vertical sliding groove. The swing rod 5 is provided with a flange 22 assembled in the vertical sliding groove. The cover 21 is provided with a limiting block 23 assembled in the vertical sliding groove. The limiting block 23 forms the upper limit structure of the flange 22. The upper and lower halves of the clamp are respectively formed on the two swing rods 5 and fixedly connected by fasteners.

[0031] A reset torsion spring 7 is provided between the drive shaft 6 and the sewage tank 3. When the external force stops, the drive bellows 4 automatically returns to the water seal state. A drive gear 8 is fitted on the outer end of the drive shaft 6. A drive rack that can mesh with the drive gear 8 is provided below the drive gear 8. The drive rack is driven by the power device to slide horizontally. In the initial state, the drive rack is disengaged from the drive gear 8. When the power device drives the drive gear 8 to rotate, the drive shaft 6 rotates accordingly, and the reset torsion spring 7 undergoes elastic deformation. During reset, the reset torsion spring 7 drives the drive shaft 6 to rotate in the opposite direction to return to the initial state. When the external force disappears, the reset torsion spring 7 drives the bellows 4 to automatically return to the initial state, that is, the closed state of the sewage discharge device, for example, a state with a 90° angle to the sewage outlet 1, so as to maintain water seal. When a driven shaft is provided, a reset torsion spring 8 can also be provided between the driven shaft and the sewage tank 3.

[0032] This embodiment adopts a double rack disengaged drive. Specifically, the drive rack includes a first rack 9 and a second rack 10 arranged side by side. The first rack 9 is driven by a motor 11, and the second rack 10 is driven by a pull cable 12. In the initial state, both the first rack 9 and the second rack 10 are disengaged from the drive gear 8. The initial state is the closed state of the sewage discharge device.

[0033] Furthermore, a rack seat 13 is provided on the outer side of the sewage box 3, and a first horizontal groove for sliding the first rack 9 and a second horizontal groove for sliding the second rack 10 are provided in parallel inside the rack seat 13.

[0034] Furthermore, the first rack 9 is located outside the second rack 10, and the outer side of the first rack 9 is provided with external teeth 14, which mesh with the drive gear 15 mounted on the motor shaft for transmission.

[0035] Furthermore, a strip-shaped groove is provided on the rack seat 13 below the second rack 10. A pull cable seat 16, which is fixedly connected to the second rack 10, is slidably disposed in the strip-shaped groove. A spring seat 17, which is opposite to the pull cable seat 16, is provided at the bottom of the rack seat 13. A return spring 18, which is fitted on the pull cable 12, is provided between the pull cable seat 16 and the spring seat 17. One end of the pull cable 12 passes through the spring seat 17 and is fixedly connected to the pull cable seat 16, and the other end is fixedly connected to the pull ring 19. The pull ring 19 is installed on the side wall of the toilet through the pull ring seat 20.

[0036] When driven by motor 11: When motor 11 is started, the motor shaft drives the drive gear 15 to rotate. The drive gear 15 drives the first rack 9 to move towards the drive gear 8. As the first rack 9 is pushed in, the first rack 9 and the drive gear 8 change from a disengaged state to an engaged state. The first rack 9 continues to move and drives the drive gear 8 to rotate for sewage discharge. After sewage discharge is completed, the first rack 9 retracts and disengages from the drive gear 8. The drive gear 8 is reset by the reset torsion spring 7. During the driving process of motor 11, the second rack 10 does not move.

[0037] When driven by the pull cable 12: the pull cable 12 is pulled by the pull ring 19, and the pull cable 12 drives the pull cable seat 16 to slide along the strip groove. At the same time, the return spring 18 is compressed, and the second rack 10 moves towards the drive gear 8 with the pull cable 12. As the second rack 10 is pushed in, the second rack 10 and the drive gear 8 change from a disengaged state to an engaged state. The second rack 10 continues to move and drives the drive gear 8 to rotate for sewage discharge. After sewage discharge is completed, the second rack 10 retracts and disengages from the drive gear 8. The drive gear 8 is reset by the return torsion spring 7. The pull cable 12 and the second rack 10 are reset by the return spring 18. During the drive of the pull cable 12, the first rack 9 does not move.

[0038] To protect the transmission structure, the drive gear 8 is covered with a gear protective cover, and the rack seat 13, motor 11 and gear protective cover are covered with a drive protective cover; both the gear protective cover and the drive protective cover are fixed on the sewage box 3.

[0039] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A silent sewage discharge structure for a toilet, comprising a sewage discharge device connecting the toilet's sewage outlet (1) and drain outlet (2), the sewage discharge device comprising a sewage discharge tank (3), wherein a corrugated pipe (4) is disposed within the sewage discharge tank (3), one end of the corrugated pipe (4) is fixedly connected to the sewage outlet (1), and the other end is suspended within the sewage discharge tank (3), a swing rod (5) is disposed on one side of the corrugated pipe (4), one end of the swing rod (5) is connected to a drive shaft (6), and the other end is connected to the suspended end of the corrugated pipe (4), characterized in that, A reset torsion spring (7) is provided between the drive shaft (6) and the sewage box (3) so that the drive bellows (4) automatically returns to the water seal state when the external force stops. A drive gear (8) is fitted on the outer end of the drive shaft (6). A drive rack that can mesh with the drive gear (8) is provided below the drive gear (8). The drive rack is driven to slide horizontally by the power device. In the initial state, the drive rack is disengaged from the drive gear (8).

2. The silent sewage discharge structure of a toilet according to claim 1, characterized in that, The drive rack includes a first rack (9) and a second rack (10) arranged side by side. The first rack (9) is driven by a motor (11), and the second rack (10) is driven by a pull wire (12).

3. The silent sewage discharge structure of a toilet according to claim 2, characterized in that, The outer side of the sewage box (3) is provided with a rack seat (13), and the rack seat (13) is provided with a first horizontal groove for the first rack (9) to slide and a second horizontal groove for the second rack (10) to slide.

4. The silent sewage discharge structure of a toilet according to claim 3, characterized in that, The first rack (9) is located outside the second rack (10), and the outer side of the first rack (9) is provided with external teeth (14), which mesh with the drive gear (15) mounted on the motor shaft.

5. The silent sewage discharge structure of a toilet according to claim 3, characterized in that, A slotted groove is provided on the rack seat (13) below the second rack (10). A pull cable seat (16) fixedly connected to the second rack (10) is slidably disposed in the slotted groove. A spring seat (17) opposite to the pull cable seat (16) is provided at the bottom of the rack seat (13). A return spring (18) fitted on the pull cable (12) is provided between the pull cable seat (16) and the spring seat (17). One end of the pull cable (12) passes through the spring seat (17) and is fixedly connected to the pull cable seat (16), and the other end is fixedly connected to the pull ring (19). The pull ring (19) is installed on the side wall of the toilet through the pull ring seat (20).

6. The silent discharging structure of a toilet according to claim 1, wherein The swing rods (5) are arranged in pairs and distributed on both sides of the bellows (4). One swing rod (5) is connected to the drive shaft (6) and the other swing rod (5) is driven. The sewage tank (3) is covered with a cover (21). The inside of the sewage tank (3) is provided with a vertical sliding groove. The swing rod (5) is provided with a flange (22) assembled in the vertical sliding groove. The cover (21) is provided with a limiting block (23) assembled in the vertical sliding groove. The limiting block (23) forms the upper limit structure of the flange (22).

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