Sewage dumping device

Abstract

The utility model belongs to the technical field of sewage treatment equipment, and particularly relates to a sewage dumping device which comprises a cover plate, a grating plate, a base, a first-layer frame, a rotating mechanism, a second-layer frame and a lifting mechanism, the cover plate and the grating plate are installed in an existing sewage port through the base, and particularly, the base is fixedly embedded in the inner wall of the sewage port, and the rotating mechanism is fixed to the inner wall of the sewage port through the lifting mechanism. A mounting groove is formed in the upper side of the base, a pouring opening is formed in the bottom wall of the mounting groove, then a first-layer frame, a second-layer frame and a cover plate are sequentially arranged upwards from the pouring opening, the first-layer frame and the second-layer frame are both fixed in the pouring opening, a grating plate is mounted in the first-layer frame through a rotating mechanism, and the cover plate is mounted on the upper side of the second-layer frame through a lifting mechanism. The cover plate is used for sealing the sewage port, a rotating part of the rotating mechanism is connected with the grating plate, the rotating mechanism is used for opening and closing the grating plate, the lifting end of the lifting mechanism is connected with the cover plate, and the lifting mechanism is used for opening and closing the cover plate. According to the device, the cover plate and the grating plate can be conveniently lifted, and the operation is simple and easy.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment equipment, and specifically relates to a sewage dumping device. Background Art

[0002] With the treatment of urban black and odorous water bodies, there are still problems such as shortcomings in the construction of water environment infrastructure and unstable treatment effects. In farmers' markets, poultry and livestock slaughterhouses, garbage transfer stations (rooms), catering food streets, auto repair shops, urban villages, village-run industrial zones and other areas, sewage is discharged indiscriminately in key non-point source areas, and there is a lack of sewage dumping facilities. These are all key non-point source areas with dispersed pollution sources. Pollutants on the ground are washed into nearby rainwater grates through rainfall or washed into rainwater grates, or dumped into rainwater grates by humans, causing the rainwater system to be polluted, thereby affecting the water quality of the river. Therefore, special sewage dumping outlets will be opened in some areas to facilitate people to transport and dump sewage into sewage pipes. For safety and to prevent larger debris from entering sewage pipes, sewage dumping devices are generally installed at sewage outlets.

[0003] The installation of sewage dumping devices can better control the diversion of rainwater and sewage and the discharge of pollutants in the city, and can improve the treatment of urban black and odorous water bodies and the concentration of water entering the sewage plant. In daily life, especially for street merchants or some livestock farmers, they often need to use sewage dumping ports to dump or discharge the generated sewage into sewage pipes, so they need to frequently open the sewage cover of the sewage dumping port.

[0004] The existing sewage dumping port device generally consists of a cover plate and a grille plate. When installing, the grille plate is installed inside the sewage dumping port, and then the cover plate is used to cover the upper side of the grille plate. On the one hand, the cover plate can improve the safety of the dumping port, and on the other hand, the grille plate can be used to filter the larger garbage impurities mixed in the sewage when dumping sewage. However, when it is necessary to treat the sewage inside the sewage pipe or dump sewage, the cover plate or the grille plate of this sewage dumping port device basically need to be manually removed, which is time-consuming and labor-intensive, and inconvenient to operate. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the purpose of the utility model is to provide a sewage dumping device, which can easily lift the cover plate and the grille plate, is simple and easy to operate, and is convenient for dumping sewage and treating sewage in the sewage pipe below the sewage outlet.

[0006] The technical solution of the utility model is:

[0007] A sewage dumping device, comprising a cover plate and a grid plate, wherein the cover plate and the grid plate are both used to be installed at a sewage outlet, and further comprising:

[0008] A base, used to be embedded and fixed on the inner wall of the sewage outlet, the base is provided with a pouring port, and the cover plate is arranged on the upper end of the base;

[0009] A layer of frame, installed on the side wall of the pouring port, the layer of frame is a frame structure with an inner hole, and the grid plate is installed in the inner hole of the layer of frame;

[0010] A rotating mechanism is arranged on a side wall of the first shelf, the rotating mechanism has a second rotating shaft, the second rotating shaft is rotatably connected to a side wall of the first shelf, the second rotating shaft is fixedly connected to one end of the grid plate, and the rotating mechanism is used to open and close the grid plate;

[0011] A second-layer frame, which has the same structure as the first-layer frame and is installed on the upper side of the first-layer frame, and the cover plate is arranged on the upper side of the second-layer frame;

[0012] The lifting mechanism is arranged on one side of the two-layer frame, and the lifting mechanism has a first rotating shaft, the first rotating shaft is rotatably connected to a side wall of the two-layer frame, and one end of the cover plate is fixedly mounted on the first rotating shaft, and the lifting mechanism is used to open and close the cover plate.

[0013] Preferably, the lifting mechanism includes a first rotating shaft, a protective shell, an upper gear, a pushing block, a lower gear, a connecting rod, a lifting rod, a rotating rod, a limit assembly, an elastic assembly, a pedal and a supporting block. The second-layer frame and one end of the cover plate are rotatably connected via the first rotating shaft. The protective shell is fixed to the second-layer frame, and an opening is provided on the side of the protective shell facing the first rotating shaft. The upper gear is located at the opening of the protective shell and is fixedly connected to the first rotating shaft. The pushing block is arranged on the lower side of the upper gear, and the lower gear is located on the lower side of the pushing block. The upper and lower surfaces of the pushing block are provided with gears meshing with the upper gear and the lower gear. The wheel groove has connecting rods at both ends of the lower gear, and the lower end of the connecting rod is fixedly connected to the rotating rod through a lifting rod, and the rotating rod extends out of a protective shell at one end away from the lifting rod and is fixed on the pedal, and the bottom of the rotating rod is hinged to the upper end of the support block, and the lower end of the support block is fixedly connected to the bottom wall of the protective shell, and the support block has a certain height, and the elastic component is arranged between the rotating rod and the inner wall of the protective shell and is located on the side of the support block away from the pedal, and the elastic component is used to realize rotational reset of the rotating rod, and the limit component is arranged between the pushing block and the protective shell to ensure the rotation stability of the pushing block.

[0014] Preferably, the elastic component includes a fixed block and a spring, the fixed block is located on the upper side of the rotating rod, and the fixed block is fixedly connected to the inner wall of the protective shell, and the spring is arranged between the fixed block and the rotating rod, and the spring is fixedly connected to the fixed block.

[0015] Preferably, a guide column is inserted in the spring, the guide column is inserted through the fixed block and the two are slidably connected, and a spherically arranged extrusion portion is fixedly connected to one end of the guide column facing the rotating rod, and the extrusion portion abuts between the spring and the rotating rod.

[0016] Preferably, the limit assembly includes a limit column and a limit slot provided on the pushing block, the limit column is inserted through the limit slot and is arranged on the pushing block, and the limit column is parallel to the first rotating shaft, and the limit slot is located on the side of the gear slot away from the second-layer frame.

[0017] Preferably, the rotating mechanism includes a second rotating shaft, a rotating knob and a through-slot opening on the first layer of the rack, the first layer of the rack is a rectangular frame adapted to the grille plate, through-slot openings are opened on the opposite side walls of the first layer of the rack, the second rotating shaft is fixedly connected to one end of the grille plate, and the two ends of the second rotating shaft are respectively inserted into a through-slot opening, and the two ends of the second rotating shaft extend out of the first layer of the rack through the through-slot opening and are fixedly connected to a rotating knob.

[0018] Preferably, a filter net is laid on the upper surface of the grille plate, and the filter net is fixed to the grille plate.

[0019] Preferably, a slide groove is further provided on the outer side wall of the protective shell, and a blocking piece is slidably connected in the slide groove, and the blocking piece is used to position the pedal when the pedal is pressed down to the lowest position.

[0020] Compared with the prior art, the sewage dumping device of the utility model has the following beneficial effects:

[0021] The sewage dumping port device, when it is necessary to open the cover plate, step on the pedal to lift the lifting rod inside the protective shell, and then drive the connecting rod to push forward to push the lower gear and the pushing block and the upper gear forward. At this time, the upper gear will drive the first rotating shaft to rotate upward, thereby driving the cover plate to open and close, and the sewage will enter the sewer through the sewage blocking port on the grille plate. The sewage blocking port on the grille plate can prevent solid garbage from being discharged into the sewage pipe. Then, when opening the cover plate, the second rotating shaft can be rotated by using the rotating knob to drive the grille plate to open further. In this way, the sewage port can be fully opened, which is convenient for workers to process the sewage in the sewage pipe below the sewage port. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the utility model from a top view;

[0023] Figure 2 This is a schematic diagram of the structure of the first layer frame and the second layer frame cooperating with each other in the utility model;

[0024] Figure 3This is a schematic diagram of the structure of the first rotating shaft and the cover plate cooperating with each other in the utility model;

[0025] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 5 This is a schematic diagram of the matching structure of a layer frame and a base of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the rotating mechanism of the utility model;

[0028] Figure 7 This is a schematic diagram of the structure of the guide column in the embodiment of the utility model;

[0029] Figure 8 It is a schematic diagram of the structure of the baffle in the embodiment of the utility model.

[0030] Description of reference numerals:

[0031] 1. Base; 2. First shelf; 3. Second shelf; 4. Dumping port; 5. Lifting mechanism; 501. First rotating shaft; 502. Cover plate; 503. Protective shell; 504. Upper gear; 505. Push block; 506. Gear slot; 507. Limiting slot; 508. Limiting column; 509. Lower gear; 510. Connecting rod; 511. Lifting rod; 512. Spring; 513. Fixed block; 514. Pedal; 515. Support block; 516. Rotating rod; 6. Rotating mechanism; 601. Second rotating shaft; 602. Grille plate; 603. Trash port; 604. Through slot; 605. Rotating knob; 7. Guide column; 8. Extrusion part; 9. Slide groove; 10. Blocking piece. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0033] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0034] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] See also Figures 1 to 6As shown, in order to facilitate the easy lifting and opening of the cover plate 502 and the grid plate 602, save the operator's physical strength, facilitate the dumping of sewage and the sewage treatment of the sewage pipe under the sewage outlet. This embodiment provides a sewage dumping device, including a cover plate 502, a grid plate 602, a base 1, a first-layer frame 2, a rotating mechanism 6, a second-layer frame 3 and a lifting mechanism 5. The cover plate 502 and the grid plate 602 are installed inside the existing sewage outlet through the base 1, and a sewage blocking port 603 is opened on the grid plate 602. Specifically, the base 1 is embedded and fixed on the inner wall of the sewage outlet, a mounting groove is opened on the upper side of the base 1, a pouring port 4 is opened on the bottom wall of the mounting groove, and then a first-layer frame 2, a second-layer frame 3 and a cover plate 502 are sequentially arranged upward from the pouring port 4, the first-layer frame 2 and the second-layer frame 3 are both rectangular frames with inner holes, the first-layer frame 2 and the second-layer frame 3 are both fixed in the pouring port 4 of the base 1, the grille plate 602 is installed in the first-layer frame 2 through the rotating mechanism 6, the cover plate 502 is installed on the upper side of the second-layer frame 3 through the lifting mechanism 5, the sewage outlet is covered by the cover plate 502, the rotating part of the rotating mechanism 6 is connected to the grille plate 602, the rotating mechanism 6 is used to open and close the grille plate 602, the lifting end of the lifting mechanism 5 is connected to the cover plate 502, and the lifting mechanism 5 is used to open and close the cover plate 502.

[0036] See also Figures 1 to 4As shown, further, in order to realize the opening and closing of the cover plate 502, the lifting mechanism 5 includes a first rotating shaft 501, a protective shell 503, an upper gear 504, a pushing block 505, a lower gear 509, a connecting rod 510, a lifting rod 511, a rotating rod 516, a limit assembly, an elastic assembly, a fixing block 513, a pedal 514 and a supporting block 515, the second layer frame 3 and one end of the cover plate 502 are rotatably connected through the first rotating shaft 501, the protective shell 503 is fixed on the second layer frame 3, and the protective shell 503 is provided with an opening on the side facing the first rotating shaft 501, the upper gear 504 is located on the side opposite to the opening of the protective shell 503, and the upper gear 504 is fixed on the first rotating shaft 501. On the upper side, the pushing block 505 is arranged on the lower side of the upper gear 504, and the lower gear 509 is located on the lower side of the pushing block 505. The upper and lower surfaces of the pushing block 505 are provided with gear grooves 506 meshing with the upper gear 504 and the lower gear 509. A connecting rod 510 is fixedly connected to each end of the lower gear 509, and the lower end of each connecting rod 510 is fixedly connected to a vertically arranged lifting rod 511, and the lower end of the lifting rod 511 is fixedly connected to a rotating rod 516. The rotating rod 516 is arranged on the lower side of the lower gear 509, and one end of the rotating rod 516 away from the lifting rod 511 extends out of the protective shell 503 and is fixed on the pedal 514. The protective shell 503 is provided with a through groove for the movement of the rotating rod 516. The lower side of the rotating rod 516 is hinged to the upper end of the support block 515, and the lower end of the support block 515 is fixedly connected to the bottom wall of the protective shell 503. The support block 515 has a certain height. The elastic component is arranged between the rotating rod 516 and the inner wall of the protective shell 503, and is located on the side of the support block 515 away from the pedal 514. The elastic component is used to realize rotational reset of the rotating rod 516. The limit component is arranged between the pushing block 505 and the protective shell 503 to ensure the rotation stability of the pushing block 505.

[0037] When it is necessary to open the cover 502, after stepping on the pedal 514, the pedal 514 drives the rotating rod 516 to rotate with the support block 515 as the fulcrum, that is, the lifting rod 511 is tilted by the setting of the support block 515, and then the rotating rod 516 gives the lifting rod 511 a lifting force, at this time the spring 512 will contract, and the connecting rod 510 and the lifting rod 511 are fixedly connected, so the connecting rod 510 will be lifted forward, and then the lower gear 509 will be pushed to roll forward, and the lower gear 509 and the pushing block 505 are engaged with each other to push it forward, at this time, the pushing block 505 pushes forward to drive the upper gear 504 to roll forward, and the upper gear 504 is fixedly connected to the first rotating shaft 501 to drive the first rotating shaft 501 to rotate, and at this time the cover 502 is opened with the rotation of the first rotating shaft 501.

[0038] See also Figure 4As shown, further, in order to realize the reset of the lifting rod 511 driven by the rotating plate to facilitate the reset of the pedal 514, the elastic component includes a fixed block 513 and a spring 512, the fixed block 513 is located on the upper side of the rotating rod 516, and the fixed block 513 is fixedly connected to the inner wall of the protective shell 503, the spring 512 is arranged between the fixed block 513 and the rotating rod 516, and the spring 512 is fixedly connected to the fixed block 513.

[0039] See also Figure 7 As shown, further, in order to ensure the stability of the expansion and contraction of the spring 512 and avoid the failure of the resetting caused by the bending and twisting of the spring 512, a guide column 7 is inserted in the spring 512, and the guide column 7 is inserted through the fixed block 513 and the two are slidably connected. A spherical extrusion portion 8 is fixedly connected to one end of the guide column 7 facing the rotating rod 516, and the extrusion portion 8 abuts between the spring 512 and the rotating rod 516.

[0040] See also Figure 4 As shown, further, in order to ensure the stable movement of the pushing block 505, the limiting assembly includes a limiting column 508 and a limiting groove 507 opened on the pushing block 505, the limiting column 508 is inserted into the pushing block 505 through the limiting groove 507, and the limiting column 508 is parallel to the first rotating shaft 501, and the limiting groove 507 is located on the side of the gear groove 506 away from the second layer frame 3. By setting the upper gear 504 and the lower gear 509, the pushing block 505 is clamped in the middle. When the connecting rod 510 and the lifting rod 511 are lifted, the lower gear 509 rotates, thereby driving the pushing block 505 to move forward. The setting of the limiting column 508 can prevent the rear end of the pushing block 505 from tilting and limit it. The limiting column 508 will slide in the limiting groove 507. When the pushing block 505 can be pushed forward, the limiting column 508 will slide in it. When it slides to the limit of the limiting groove 507, the pushing block 505 will be limited for a second time through the limiting column 508.

[0041] See also Figure 2 , Figure 5 and Figure 6 As shown, further, in order to realize the opening and closing of the grille plate 602, the rotating mechanism 6 includes a second rotating shaft 601, a rotating knob 605 and a through-slot 604 opened on a layer rack 2, and a layer rack 2 is a rectangular frame adapted to the grille plate 602, and through-slots 604 are opened on the opposite side walls of a layer rack 2, the second rotating shaft 601 is fixedly connected to one end of the grille plate 602, and the two ends of the second rotating shaft 601 are respectively inserted into a through-slot 604, and the two ends of the second rotating shaft 601 extend out of the outer side of a layer rack 2 through the through-slot 604 and are fixedly connected with a rotating knob 605.

[0042] When the grille plate 602 needs to be opened, the rotary knob 605 is first rotated to rotate, and then the second shaft 601 is rotated. The second shaft 601 is fixedly connected to the grille plate 602, so the grille plate 602 is rotated upward to open it for the treatment of the internal sewage.

[0043] Furthermore, in order to prevent fixed impurities from being mixed into the sewage during the process of opening the cover plate 502 to dump the sewage, thereby increasing the difficulty of subsequent sewage treatment, a filter screen is laid on the upper surface of the grid plate 602, and the filter screen is fixed to the grid plate 602. The structure of the filter screen is not shown in the drawings.

[0044] See also Figure 8 As shown, further, in order to ensure that the cover plate 502 can remain open after being opened, so as to facilitate the dumping of sewage, a chute 9 is provided on the outer wall of the protective shell 503, and a baffle 10 is slidably connected in the chute 9, and the baffle 10 is used to position the pedal 514 when the pedal 514 is pressed down to the lowest position.

[0045] The real-time principle of this device is as follows: first, when sewage treatment is required, the cover plate 502 needs to be opened, the pedal 514 is stepped on first, and then the support block 515 is used as a fulcrum to rotate the rotating rod 516, and the rotating rod 516 is used to give a lifting force to the lifting rod 511 to lift the lifting rod 511. At this time, the spring 512 contracts, and the connecting rod 510 is lifted forward by the lifting rod 511. When the connecting rod 510 is lifted forward, it drives the lower gear 509 to roll forward, and then the lower gear 509 drives the pushing block 505 to push forward. When the pushing block 505 is pushed forward , the upper gear 504 will also push forward, and the limiting column 508 will limit the pushing block 505 so that it will not deviate. At this time, the upper gear 504 drives the first rotating shaft 501 to rotate and drives the cover plate 502 to lift upward to open it, and release the pedal 514, the spring 512 rebounds and closes the cover plate 502. When it is necessary to open the grille plate 602, first grasp the rotating knobs 605 on both sides and rotate them, and then the rotating knobs 605 rotate to drive the second rotating shaft 601 to rotate, thereby driving the grille plate 602 to open and close so that it is opened for sewage treatment.

[0046] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A sewage dumping device, comprising a cover plate (502) and a grid plate (602), wherein the cover plate (502) and the grid plate (602) are both used to be installed at a sewage outlet, characterized in that: Also includes: A base (1) is used to be embedded and fixed on the inner wall of the sewage outlet, the base (1) is provided with a pouring port (4), and the cover plate (502) is covered on the upper end of the base (1); A layer of frame (2) is installed on the side wall of the pouring opening (4), the layer of frame (2) is a frame structure with an inner hole, and the grid plate (602) is installed in the inner hole of the layer of frame (2); A rotating mechanism (6) is arranged on a side wall of the first shelf (2), the rotating mechanism (6) having a second rotating shaft (601), the second rotating shaft (601) being rotatably connected to a side wall of the first shelf (2), the second rotating shaft (601) being fixedly connected to one end of the grille plate (602), and the rotating mechanism (6) being used to open and close the grille plate (602); The second-layer frame (3) has the same structure as the first-layer frame (2) and is installed on the upper side of the first-layer frame (2), and the cover plate (502) is arranged on the upper side of the second-layer frame (3); A lifting mechanism (5) is arranged on one side of the two-layer frame (3), the lifting mechanism (5) having a first rotating shaft (501), the first rotating shaft (501) being rotatably connected to a side wall of the two-layer frame (3), and one end of the cover plate (502) is sleeved and fixed on the first rotating shaft (501), and the lifting mechanism (5) is used to realize opening and closing of the cover plate (502).

2. A sewage dumping device according to claim 1, characterized in that: The lifting mechanism (5) further comprises: A protective shell (503) is fixed on the second-layer frame (3), and an opening is provided on a side of the protective shell (503) facing the first rotating shaft (501); an upper gear (504) which is sleeved and fixed on the first rotating shaft (501), and the upper gear (504) is opposite to the opening of the protective shell (503); A lower gear (509) is arranged at the lower side of the upper gear (504), and both ends of the lower gear (509) are respectively connected to a connecting rod (510), and the lower end of each connecting rod (510) is connected to a vertically arranged lifting rod (511); A pushing block (505) is disposed between the upper gear (504) and the lower gear (509), and the upper and lower surfaces of the pushing block (505) are both provided with gear grooves (506) that mesh with the upper gear (504) and the lower gear (509); A rotating rod (516) is arranged on the lower side of the lower gear (509); the lower end of the lifting rod (511) is fixedly connected to the rotating rod (516); one end of the rotating rod (516) extends out of the protective shell (503) and is fixedly connected to a pedal (514); and a through groove for the rotating rod (516) to move is provided on the protective shell (503); A support block (515) is hinged on the lower side of the rotating rod (516), and the support block (515) is fixedly connected to the protective shell (503); an elastic component, arranged between the rotating rod (516) and the inner wall of the protective shell (503), and used for realizing rotational reset of the rotating rod (516); The limiting assembly is arranged between the pushing block (505) and the protective shell (503) and is used to ensure the stable rotation of the pushing block (505).

3. A sewage dumping device according to claim 2, characterized in that: The elastic component comprises a fixed block (513) and a spring (512); the fixed block (513) is located on the upper side of the rotating rod (516), and the fixed block (513) is fixedly connected to the inner wall of the protective shell (503); the spring (512) is arranged between the fixed block (513) and the rotating rod (516), and the spring (512) is fixedly connected to the fixed block (513).

4. A sewage dumping device according to claim 3, characterized in that: A guide column (7) is inserted into the spring (512), and the guide column (7) is inserted through the fixed block (513) and the two are slidably connected. A spherically arranged extrusion portion (8) is fixedly connected to one end of the guide column (7) facing the rotating rod (516), and the extrusion portion (8) abuts between the spring (512) and the rotating rod (516).

5. A sewage dumping device according to claim 2, characterized in that: The limiting assembly comprises a limiting column (508) and a limiting groove (507) provided on the pushing block (505); the limiting column (508) is inserted through the limiting groove (507) on the pushing block (505); the limiting column (508) is parallel to the first rotating shaft (501); and the limiting groove (507) is located on a side of the gear groove (506) away from the second-layer frame (3).

6. A sewage dumping device according to claim 1, characterized in that: The rotating mechanism (6) comprises a second rotating shaft (601), a rotating knob (605) and a through-slot (604) provided on the first shelf (2); the first shelf (2) is a rectangular frame adapted to the grille plate (602); through-slots (604) are provided on opposite side walls of the first shelf (2); the second rotating shaft (601) is fixedly connected to one end of the grille plate (602), and the two ends of the second rotating shaft (601) are respectively inserted into a through-slot (604), and the two ends of the second rotating shaft (601) extend out of the outer side of the first shelf (2) through the through-slot (604) and are fixedly connected to a rotating knob (605).

7. A sewage dumping device according to claim 6, characterized in that: The upper surface of the grille plate (602) is provided with a filter net, and the filter net is fixed to the grille plate (602).

8. A sewage dumping device according to claim 2, characterized in that: A sliding groove (9) is also provided on the outer wall of the protective shell (503), and a blocking piece (10) is slidably connected in the sliding groove (9). The blocking piece (10) is used to limit the movement of the pedal (514) when the pedal (514) is pressed down to the lowest position.

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