Sewage filtering and discharging device with filter plate convenient to replace

Abstract

The utility model relates to the technical field of sewage filtering and discharging, and discloses a sewage filtering and discharging device convenient to replace a filter plate, which comprises a water inlet pipe, a shell and three push-pull devices, a water inlet is fixedly arranged at the upper end position of the water inlet pipe, and intelligent glass is clamped at the middle position of the rear end surface of the shell; a control panel is fixedly arranged in the middle of the upper end of the shell close to the rear end, the water inlet pipe penetrates through one side of the upper end of the shell close to the front end, the lower end of the water inlet pipe is connected with a water pump, a water outlet of the water pump is connected with a water drainage pipe, and a fixator is fixedly arranged at the lower end of the water drainage pipe. According to the utility model, when the device is used, the vibration of the filter plate cannot cause the blockage of the filter holes, when the filter plate needs to be replaced, the filter plate is directly pulled out for replacement, the operation is simple and convenient, and when the device goes wrong, the operation condition in the device can be observed through the intelligent glass for maintenance, so that the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage filtering and discharging, in particular to a sewage filtering and discharging device which is convenient for replacing filter plates. Background Art

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, and catering, and is increasingly entering the daily lives of ordinary people.

[0003] After searching, the existing patent (Announcement No.: CN208115266U) "The utility model discloses a food production wastewater filtering and discharging device, which includes a frame, a water inlet pool is arranged on the frame, a solid waste collection bucket is arranged on the left side of the water inlet pool, a motor is arranged at the bottom of the water inlet pool, an impeller is arranged on the motor, a drain port is arranged adjacent to the motor, a temporary storage pool is arranged at the lower end of the drain port, the temporary storage pool is connected to a drain pipe, and a filtering device is arranged on the drain pipe. The food production wastewater filtering and discharging device of the utility model has the characteristics of good filtering effect, simple structure, and convenient operation."

[0004] Although this patented technology solves the problem of simple device structure and convenient operation, it still has the problem of inability to replace the filter. The disadvantages are as follows: 1. The above patent can collect solid waste in sewage through a solid waste collection bucket, but when the filter is blocked, the solid waste cannot be filtered, which greatly reduces the working efficiency of the sewage filtration and discharge device; 2. When the filter needs to be replaced, the above patent needs to pull out the solid waste collection bucket and then enter the device to replace it. The replacement process is not convenient, which greatly reduces the working efficiency; 3. When a fault occurs in this patent, since the internal situation cannot be observed on the outer surface, the device needs to be opened for inspection one by one, which reduces the working efficiency. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose a sewage filtering and discharging device which is convenient for replacing filter plates. The vibration of the filter plates during use will not cause clogging of the filter holes. When the filter plates need to be replaced, they can be directly pulled out and replaced, which is simple and convenient. When problems occur in the device, the operating conditions in the device can be observed through the smart glass for maintenance, which greatly improves work efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A sewage filtering and discharging device for convenient replacement of filter plates, comprising a water inlet pipe, a shell and three push-pull devices, wherein a water inlet is fixedly arranged at the upper end of the water inlet pipe, a smart glass is clamped and arranged at the middle position of the rear end surface of the shell, a control panel is fixedly arranged at the middle position of the upper end of the shell near the rear end, and the water inlet pipe is arranged through a side position of the upper end of the shell near the front end;

[0008] The lower end of the water inlet pipe is connected to a water pump, the water pump outlet is connected to a drain pipe and a fixture is fixedly arranged at the lower end of the drain pipe, the three push-pull devices each include two fixing plates, a push-pull plate and two clamping blocks, and an impact device is arranged through one side of the shell, and the impact device includes two small bumps, a rotating rod, a motor and an output shaft;

[0009] Through the above technical solution, the smart glass is convenient for workers to observe the internal operation status of the device, the control panel is convenient for controlling the smart glass and the impact device, the water pump is convenient for conveying water, the fixer is convenient for fixing the water inlet pipe, the three push-pull devices are convenient for replacing the filter plate, and the holes of the filter plate can be kept unblocked when the impact device is working.

[0010] Furthermore, fixing rods are fixedly arranged on the inner walls of both sides of the shell, and long grooves are provided at the upper and lower ends of the two fixing rods, and two support frames are clamped at the upper, middle and lower ends of the two fixing rods;

[0011] Through the above technical solution, the support frame is convenient for supporting the first filter plate, the second filter plate and the activated carbon layer.

[0012] Furthermore, two support frames of the two fixing rods near the top surface of the shell are clamped with a first layer of filter plates at one end, two support frames of the two fixing rods near the middle of the shell are clamped with a second layer of filter plates at one end, and two support frames of the two fixing rods near the bottom surface of the shell are clamped with an activated carbon layer at one end, and slide blocks are fixedly provided on both sides of the first layer of filter plates, the second layer of filter plates and the activated carbon layer, and a plurality of slide blocks are movably clamped with a plurality of support frames;

[0013] Through the above technical scheme, the first filter plate and the second filter plate filter the sewage more thoroughly, the activated carbon layer can absorb organic matter in the sewage, the support frame is convenient for supporting the first filter plate, the second filter plate and the activated carbon layer, and the plurality of slide blocks are convenient for pulling out the first filter plate, the second filter plate and the activated carbon layer respectively.

[0014] Furthermore, vertical grooves are provided at the upper and lower ends of the inner walls on both sides of the shell, the four vertical grooves are connected to the four long grooves, a plurality of slide blocks are fixedly provided with rubber pads on one side close to the shell, four rubber pads are fixedly provided with springs on one side close to the shell, two springs on one side of the fixing rod at one side of the inner wall of the shell are fixedly provided with ladder blocks on one side away from the rubber pads, and two springs on one side of the fixing rod at the other side of the inner wall of the shell are fixedly provided with blocks on one side away from the rubber pads;

[0015] Through the above technical solution, the multiple rubber pads will not change the performance of the spring. The spring makes the rubber pad hit the slide block. The ladder block can be squeezed with the impact device to cause the rubber pad to collide. The block is fixed to the shell to facilitate fixing the two springs on one side of the fixing rod on the other side of the inner wall of the shell.

[0016] Furthermore, an inclined rod is fixedly provided on one side of the fixing rod at the inner wall position of one side of the shell, and the inclined rod is located between the first filter plate and the second filter plate, and a support seat is fixedly provided on one side of the fixing rod at the inner wall position of the other side of the shell, and the support seat is fixedly provided at the lower end of the inclined rod, and two track blocks are fixedly provided at the middle position of the upper end of the support seat, and an impurity box is slidably provided at the upper end of the support seat, and four track bars are fixedly provided at the middle position of the lower end of the impurity box, and the two track blocks are respectively slidably connected between two of the four track bars located on the same side, and a filter screen is penetrated at the middle position of one side of the support seat, and a second handle is fixedly provided at the middle position of the front end of the impurity box;

[0017] Through the above technical solution, the inclined rod can make the sewage filtered by the first layer of filter plates flow into the impurity box, the support seat can support the impurity box, the two track blocks and the four track bars are convenient for pulling out the impurity box, the filter screen can retain impurities in the impurity box, and the second handle is convenient for pulling out the impurity box.

[0018] Furthermore, the motor is fixedly arranged at a middle position on one side of the housing, one end of the output shaft is fixedly arranged at the output end of the motor, a rotating rod is fixedly arranged on one side of the output shaft, and the two small protrusions are fixedly arranged at the upper and lower ends of one side of the rotating rod;

[0019] Through the above technical solution, the motor can easily drive the output shaft to rotate, and the output shaft can easily drive the rotating rod to rotate. When the rotating rod rotates, the two small protrusions are squeezed with the ladder block, thereby driving the spring to cause the rubber pad to collide.

[0020] Further, the three push-pull devices are respectively fixedly arranged at the front end positions of the first filter plate, the second filter plate and the activated carbon layer, the push-pull plates are movably arranged at the front end positions of the first filter plate, the second filter plate and the activated carbon layer, a first handle is fixedly arranged at the middle position at the front end of the three push-pull plates, the two fixed plates are respectively fixedly arranged at the two side positions of the push-pull plates, the two clamping blocks are fixedly arranged at the rear end positions of the opposite ends of the two fixed plates, and the slide block is fixed between the clamping block and the fixed plate;

[0021] Through the above technical solution, the first handle facilitates pulling out the first filter plate, the second filter plate and the activated carbon layer, and the slide block is fixed between the clamping block and the fixed plate to facilitate pulling out the first filter plate, the second filter plate and the activated carbon layer.

[0022] Furthermore, a water outlet pipe is provided through one side of the shell near the lower end, and a valve is provided at one end of the water outlet pipe;

[0023] Through the above technical solution, the water outlet pipe is convenient for discharging the filtered sewage, and the valve is convenient for closing the water outlet pipe when the device is not in use.

[0024] The utility model has the following beneficial effects:

[0025] 1. The utility model proposes a sewage filtering and discharging device which is convenient for replacing filter plates. The push-pull device is connected to the filter plate through two fixed plates in three push-pull devices and clamping blocks on two fixed plates fixedly arranged on the slide blocks. Since the slide blocks of the first filter plate, the second filter plate and the activated carbon layer are between the support frames in pairs, when the device needs to replace the filter plate, the first handles on the three push-pull plates are pulled out for replacement, which is convenient and greatly improves the work efficiency.

[0026] 2. The utility model proposes a sewage filtering and discharging device which is convenient for replacing filter plates. When using the device, the motor is turned on to rotate the output shaft, thereby driving the rotating rod to rotate, thereby driving the two small protrusions to rotate. When the two small protrusions rotate to the two ladder blocks, they are respectively squeezed with the two ladder blocks, thereby driving the two rubber pads on the two springs to squeeze the first filter plate and the second filter plate respectively. Since the two springs at one side of the fixed rod at the other side of the inner wall of the shell are fixedly provided with blocks on one side away from the rubber pad, when the first filter plate and the second filter plate are squeezed respectively, the two springs at one side of the fixed rod at the other side of the inner wall of the shell are also squeezed, thereby driving the first filter plate and the second filter plate to vibrate, preventing the filter holes from being blocked, thereby greatly improving the working efficiency of the device.

[0027] 3. The utility model proposes a sewage filtering and discharging device which is convenient for replacing filter plates. When the device fails, the button for controlling the smart glass on the control panel is turned on, the smart glass becomes transparent, and the operating status of the device can be observed through the smart glass for maintenance. After the maintenance is completed, the button for controlling the smart glass on the control panel is turned off, and the smart glass becomes frosted, which is convenient for workers to make timely judgments on the operating status of the device and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the axle side of the utility model;

[0029] Figure 2 This is a schematic diagram of the back side axis of the utility model;

[0030] Figure 3 It is a front cross-sectional schematic diagram proposed by the utility model;

[0031] Figure 4 This is an enlarged schematic diagram of point A proposed by the utility model;

[0032] Figure 5 This is an enlarged schematic diagram of point B proposed by the utility model;

[0033] Figure 6 This is an axial schematic diagram of the impact device proposed by the utility model;

[0034] Figure 7 This is an enlarged schematic diagram of point C proposed by the utility model.

[0035] Legend:

[0036] 1. Water inlet; 2. Water inlet pipe; 3. Water pump; 4. Fixer; 5. Push-pull device; 501. Fixed plate; 502. Push-pull plate; 503. Block; 6. Track bar; 7. Water outlet pipe; 8. Valve; 9. First handle; 10. Control panel; 11. First filter plate; 12. Impurity box; 13. Smart glass; 14. Activated carbon layer; 15. Impact device; 1501. Small bump; 1502. Rotating rod; 1503. Motor; 1504. Output shaft; 16. Housing; 17. Second filter plate; 18. Support seat; 19. Filter screen; 20. Diagonal rod; 21. Block; 22. Fixed rod; 23. Second handle; 24. Ladder block; 25. Spring; 26. Long groove; 27. Rubber pad; 28. Slide block; 29. ​​Support frame; 30. Vertical groove; 31. Track block. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] Reference Figure 1-7 The utility model provides an embodiment: a sewage filtering and discharging device for conveniently replacing filter plates, comprising a water inlet pipe 2, a shell 16 and three push-pull devices 5, a water inlet 1 is fixedly arranged at the upper end of the water inlet pipe 2, sewage enters the water inlet pipe 2 from the water inlet 1, a smart glass 13 is clamped and arranged at the middle position of the rear end surface of the shell 16, a control panel 10 is fixedly arranged at the middle position of the upper end of the shell 16 near the rear end, a button for controlling the smart glass 13 on the control panel 10 is turned on, the smart glass 13 is in a transparent state, and a button for controlling the smart glass 13 on the control panel 10 is turned off, the smart glass 13 is in a frosted state, and the water inlet pipe 2 is arranged through a side position of the upper end of the shell 16 near the front end;

[0039] The lower end of the water inlet pipe 2 is connected to a water pump 3, the drain outlet of the water pump 3 is connected to a drain pipe, and a fixture 4 is fixedly arranged at the lower end of the drain pipe. Sewage enters the water pump 3 from the water inlet pipe 2 and enters the device through the drain pipe of the water pump 3. The three push-pull devices 5 each include two fixed plates 501, a push-pull plate 502 and two clamping blocks 503. An impact device 15 is provided through one side of the shell 16. The impact device 15 includes two small protrusions 1501, a rotating rod 1502, a motor 1503 and an output shaft 1504. Fixed rods 22 are fixedly arranged at the inner wall positions on both sides of the shell 16. Long grooves 26 are provided at the upper and lower ends of the two fixed rods 22. Two support frames 29 are clamped at the upper, middle and lower ends of the two fixed rods 22.

[0040] Two supporting frames 29 at the top surface of the two fixing rods 22 near the outer shell 16 are provided with the first filter plate 11 at one end, two supporting frames 29 at the middle of the two fixing rods 22 near the outer shell 16 are provided with the second filter plate 17 at one end, and two supporting frames 29 at the bottom surface of the two fixing rods 22 near the outer shell 16 are provided with the activated carbon layer 14 at one end. The supporting frames 29 can support the first filter plate 11, the second filter plate 17 and the activated carbon layer 14 inside. Slide blocks 28 are fixedly provided on both sides of the first filter plate 11, the second filter plate 17 and the activated carbon layer 14. The multiple slide blocks 28 are movably connected with the multiple supporting frames 29, and the first filter plate 11, the second filter plate 17 and the activated carbon layer 14 can be slid out for easy replacement;

[0041] Vertical grooves 30 are provided at the upper and lower ends of the inner walls on both sides of the shell 16, and the four vertical grooves 30 are communicated with the four long grooves 26. A rubber pad 27 is fixedly provided on one side of the plurality of slide blocks 28 close to the shell 16, and a spring 25 is fixedly provided on the four rubber pads 27 close to the shell 16. A ladder block 24 is fixedly provided on the side away from the rubber pad 27 of two springs 25 at one side of the fixing rod 22 at one side of the inner wall of the shell 16. The two rubber pads 27, the two springs 25 and the two ladder blocks 24 are respectively inserted into the two vertical grooves 30 and the two long grooves 26. A square block 21 is fixedly provided on the side away from the rubber pad 27 of two springs 25 at one side of the fixing rod 22 at the other side of the inner wall of the shell 16. The other two rubber pads 27, the two springs 25 and the two square blocks 21 are respectively inserted into the other two vertical grooves 30 and the two long grooves 26.

[0042] A slanted rod 20 is fixedly arranged on one side of a fixed rod 22 at an inner wall position on one side of the shell 16. The slanted rod 20 is located between the first filter plate 11 and the second filter plate 17. The filtered sewage enters the impurity box 12 through the inclination of the slanted rod 20. A support seat 18 is fixedly arranged on one side of the fixed rod 22 at the inner wall position on the other side of the shell 16. The support seat 18 is fixedly arranged at the lower end of the slanted rod 20. Two track blocks 31 are fixedly arranged at the middle position of the upper end of the support seat 18. The impurity box 12 is slidably arranged at the upper end of the support seat 18. The lower end of the impurity box 12 is fixedly arranged at the middle position. Four track bars 6 are arranged, and two track blocks 31 are respectively slidably connected between two of the four track bars 6 located on the same side, so that the impurity box 12 can be slid on the support seat 18. A filter screen 19 is provided through the middle position of one side of the support seat 18. The sewage filtered by the first filter plate 11 enters the impurity box 12 through the inclined rod 20, and the particles are retained in the impurity box 12 through the filter screen 19. A second handle 23 is fixedly provided in the middle position of the front end of the impurity box 12, and the impurity box 12 can be pulled out by pulling the second handle 23 to pour out the particles in the impurity box 12;

[0043] The motor 1503 is fixedly arranged at the middle position on one side of the housing 16, one end of the output shaft 1504 is fixedly arranged at the output end of the motor 1503, a rotating rod 1502 is fixedly arranged on one side of the output shaft 1504, and two small protrusions 1501 are fixedly arranged on one side of the rotating rod 1502 at the upper end and the lower end. When the motor 1503 is turned on to rotate the output shaft 1504, the rotating rod 1502 is driven to rotate, and the two small protrusions 1501 are driven to rotate. When the two small protrusions 1501 rotate to the two ladder blocks 24, they are squeezed with the two ladder blocks 24 respectively, and the two small protrusions 1501 rotate to the two ladder blocks 24. The two rubber pads 27 on the two springs 25 are driven to squeeze the first filter plate 11 and the second filter plate 17 respectively. Since the two springs 25 on one side of the fixing rod 22 on the other side of the inner wall of the shell 16 are fixedly provided with blocks 21 on one side away from the rubber pads 27, when the first filter plate 11 and the second filter plate 17 are squeezed respectively, the two springs 25 on one side of the fixing rod 22 on the other side of the inner wall of the shell 16 are also squeezed, so that the first filter plate 11 and the second filter plate 17 vibrate to prevent the filter holes from being blocked.

[0044] The three push-pull devices 5 are respectively fixedly arranged at the front end positions of the first filter plate 11, the second filter plate 17 and the activated carbon layer 14, and the push-pull plate 502 is movably arranged at the front end positions of the first filter plate 11, the second filter plate 17 and the activated carbon layer 14. A first handle 9 is fixedly arranged at the middle position at the front end of the three push-pull plates 502, and two fixed plates 501 are respectively fixedly arranged at the two side positions of the push-pull plates 502. Two clamping blocks 503 are fixedly arranged at the rear end position of the opposite end of the two fixed plates 501, and the slide block 28 is fixed between the clamping block 503 and the fixed plate 501. When the filter plate needs to be replaced, it can be pulled out for replacement by pulling the first handle 9 on the three push-pull plates 502. A water outlet pipe 7 is penetrated at the lower end position of one side of the shell 16, and finally the filtered sewage is discharged through the water outlet pipe 7. A valve 8 is sleeved at one end of the water outlet pipe 7, and the valve 8 can be closed when the device is not in use.

[0045] Working principle: When the device is in use, the motor 1503 switch on the control panel 10 is turned on to operate the impact device 15, and the valve 8 is opened. The sewage enters the water inlet pipe 2 from the water inlet port 1, and then enters the water pump 3 from the water inlet pipe 2, and enters the device from the drainage pipe of the water pump 3. After being filtered by the first filter plate 11, it enters the impurity box 12 through the inclined rod 20, and the particles are retained in the impurity box 12 through the filter screen 19. The impurity box 12 is pulled out by pulling the second handle 23 to pour out the particles inside. The sewage passing through the filter screen 19 enters the second filter plate 17 for re-filtration, and the re-filtered sewage enters the activated carbon layer 14 to adsorb the particles in the sewage. Organic matter, the filtered sewage is then discharged through the outlet pipe 7. The first filter plate 11, the second filter plate 17 and the activated carbon layer 14 can be pulled out and replaced by pulling the three first handles 9 respectively. When the device fails, open the button for controlling the smart glass 13 on the control panel 10, the smart glass 13 is in a transparent state, and the operation status of the device can be observed through the smart glass 13 for maintenance. After the maintenance is completed, turn off the button for controlling the smart glass 13 on the control panel 10, and the smart glass 13 is in a frosted state. When the device is not in use, turn off the switch of the motor 1503 on the control panel 10 to stop the impact device 15, and then close the valve 8.

[0046] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sewage filtering and discharging device for conveniently replacing filter plates, comprising a water inlet pipe (2), a housing (16) and three push-pull devices (5), characterized in that: The water inlet (1) is fixedly provided at the upper end of the water inlet pipe (2), a smart glass (13) is clamped and provided at the middle position of the rear end surface of the housing (16), a control panel (10) is fixedly provided at the middle position of the upper end of the housing (16) close to the rear end, and the water inlet pipe (2) is provided through a side position of the upper end of the housing (16) close to the front end; The lower end of the water inlet pipe (2) is connected to a water pump (3), the water outlet of the water pump (3) is connected to a drain pipe, and a fixture (4) is fixedly arranged at the lower end of the drain pipe. The three push-pull devices (5) each include two fixing plates (501), a push-pull plate (502) and two clamping blocks (503). An impact device (15) is provided through one side of the housing (16), and the impact device (15) includes two small protrusions (1501), a rotating rod (1502), a motor (1503) and an output shaft (1504).

2. A sewage filtering and discharging device with convenient filter plate replacement according to claim 1, characterized in that: Fixed rods (22) are fixedly arranged at the inner walls of both sides of the housing (16); long grooves (26) are provided at the upper and lower ends of the two fixed rods (22); and two support frames (29) are clamped and arranged at the upper, middle and lower ends of the two fixed rods (22).

3. A sewage filtering and discharging device with convenient filter plate replacement according to claim 2, characterized in that: The two support frames (29) located near the top surface of the housing (16) of the two fixing rods (22) are clamped with a first filter plate (11) at one end, the two support frames (29) located near the middle of the housing (16) are clamped with a second filter plate (17) at one end, and the two support frames (29) located near the bottom surface of the housing (16) of the two fixing rods (22) are clamped with an activated carbon layer (14) at one end. Slide blocks (28) are fixedly arranged on both sides of the first filter plate (11), the second filter plate (17) and the activated carbon layer (14), and a plurality of slide blocks (28) are movably clamped with a plurality of support frames (29).

4. A sewage filtering and discharging device with convenient filter plate replacement according to claim 3, characterized in that: Vertical grooves (30) are provided at the upper and lower ends of the inner walls on both sides of the shell (16); the four vertical grooves (30) are communicated with the four long grooves (26); a rubber pad (27) is fixedly provided on one side of the plurality of slide blocks (28) close to the shell (16); a spring (25) is fixedly provided on one side of the four rubber pads (27) close to the shell (16); a ladder block (24) is fixedly provided on one side of the two springs (25) of the fixed rod (22) at one side of the inner wall of the shell (16) away from the rubber pad (27); and a square block (21) is fixedly provided on one side of the two springs (25) of the fixed rod (22) at the other side of the inner wall of the shell (16) away from the rubber pad (27).

5. The sewage filtering and discharging device with convenient filter plate replacement according to claim 1 is characterized in that: A slanting rod (20) is fixedly arranged on one side of the fixing rod (22) at the inner wall position of one side of the shell (16), and the slanting rod (20) is located between the first filter plate (11) and the second filter plate (17). A support seat (18) is fixedly arranged on one side of the fixing rod (22) at the inner wall position of the other side of the shell (16), and the support seat (18) is fixedly arranged at the lower end of the slanting rod (20). Two track blocks (31) are fixedly arranged at the middle position of the upper end of the support seat (18), and an impurity box (12) is slidably arranged at the upper end of the support seat (18). Four track bars (6) are fixedly arranged at the middle position of the lower end of the impurity box (12), and the two track blocks (31) are respectively slidably engaged between two of the four track bars (6) located on the same side. A filter screen (19) is penetrated and arranged at the middle position of one side of the support seat (18), and a second handle (23) is fixedly arranged at the middle position of the front end of the impurity box (12).

6. The sewage filtering and discharging device with convenient filter plate replacement according to claim 1 is characterized in that: The motor (1503) is fixedly arranged at a middle position on one side of the housing (16); one end of the output shaft (1504) is fixedly arranged at the output end of the motor (1503); a rotating rod (1502) is fixedly arranged on one side of the output shaft (1504); and the two small protrusions (1501) are fixedly arranged at upper and lower ends of one side of the rotating rod (1502).

7. The sewage filtering and discharging device with convenient filter plate replacement according to claim 1 is characterized in that: The three push-pull devices (5) are respectively fixedly arranged at the front end positions of the first filter plate (11), the second filter plate (17) and the activated carbon layer (14); the push-pull plate (502) is movably arranged at the front end positions of the first filter plate (11), the second filter plate (17) and the activated carbon layer (14); a first handle (9) is fixedly arranged at the middle position of the front end of the three push-pull plates (502); the two fixed plates (501) are respectively fixedly arranged at the two side positions of the push-pull plates (502); the two clamping blocks (503) are fixedly arranged at the rear end positions of the opposite ends of the two fixed plates (501); and the slide block (28) is fixed between the clamping block (503) and the fixed plate (501).

8. The sewage filtering and discharging device with convenient filter plate replacement according to claim 1 is characterized in that: A water outlet pipe (7) is provided through one side of the outer shell (16) at a position close to the lower end thereof, and a valve (8) is sleeved on one end of the water outlet pipe (7).

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