Excrement filtering device and use method

Abstract

The invention discloses an excrement filtering device and a use method, and belongs to the technical field of excrement filtering. The excrement filtering device comprises a treatment box, a solid pipeline and a liquid pipeline are arranged on the treatment box, the excrement filtering device further comprises a filtering seat, the filtering seat is connected with the treatment box in a sliding mode, and the filtering seat comprises a filtering frame and two filtering plates arranged on the filtering frame; the working shell is fixedly arranged on the outer side of the treatment box, a drainage groove communicated with the working shell is formed in the treatment box, a support is fixedly arranged on the working shell, and an electric telescopic rod used for driving the filter seat to move is arranged on the support; the two groups of backwashing mechanisms are symmetrically arranged on the two sides of the working shell; the two filter plates for filtering and separating excrement are arranged, so that the other filter plate continues to filter and separate the excrement while the excrement in the meshes of one filter plate is cleaned, and continuous work is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of excrement filtering, and in particular to an excrement filtering device and a use method thereof. Background Art

[0002] With the rapid economic growth, the cleaning and transportation of domestic waste, especially human excrement, is a major issue in the field of sanitation. At present, most domestic toilets have six modes: three-compartment septic tank, double-urn triple biogas tank, feces and urine separation, double pit alternating, and complete sewer flushing toilet. The investigation and research on user behavior, usage psychology, and actual needs under different conditions and scenarios is not thorough, resulting in environmental pollution and waste of water resources.

[0003] In the prior art, patent application number CN201920068550.5 discloses a ceramic mesh filtration system for a fully automatic biochemical toilet excrement treatment device, including: a vacuum tank, a vacuum pump, a treatment box, a ceramic mesh, a first booster pump, a second booster pump and a liquid storage box, which can improve the solid-liquid separation efficiency of flushing excrement. However, during long-term use, the ceramic mesh in the treatment box is prone to blockage by fine excrement in the mesh, affecting the solid and liquid filtration and separation effect of the treatment box on the excrement. The staff is required to remove the ceramic mesh in the treatment box for cleaning or replacement, which increases the workload of the staff. During the removal, cleaning or replacement of the ceramic mesh, the treatment box cannot continue to work, affecting the continuous use of excrement filtration and separation. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose an excrement filtering device and a method of use.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An excrement filtering device comprises a processing box, wherein the processing box is provided with a solid pipeline and a liquid pipeline, and further comprises: A filter seat, the filter seat is slidably connected to the processing box, and the filter seat includes a filter frame and two filter plates arranged on the filter frame; A working shell, which is fixedly arranged on the outside of the treatment box, the treatment box is provided with a drainage groove connected to the working shell, the working shell is fixedly provided with a bracket, and the bracket is provided with an electric telescopic rod for driving the filter seat to move; a backwashing mechanism, the backwashing mechanism is provided with two groups and symmetrically arranged on both sides of the working shell, for flushing the excrement that blocks the mesh of the filter plate, the backwashing mechanism includes a rotating assembly for driving the filter plate to rotate, a flushing assembly for flushing the filter plate, and a transmission assembly connecting the flushing assembly and the rotating assembly.

[0006] Preferably, a rotating rod fixedly connected to the filter plate is rotatably connected to the filter frame, a torsion spring for resetting and rotating the filter plate is provided between the rotating rod and the filter frame, and a positioning assembly plugged into the filter frame is provided on the rotating rod.

[0007] Preferably, the positioning assembly includes a square groove opened on the rotating rod, a slider is slidably connected in the square groove, a first elastic element is arranged between the slider and the inner wall of the square groove, a positioning rod slidably connected to the rotating rod is fixed on the slider, and a positioning groove matching the positioning rod is opened on the filter frame.

[0008] Preferably, the rotating assembly includes a support fixed on the working shell, a driving motor is fixed on the support, an output shaft of the driving motor is connected to a driving rod, a square rod plugged into the square groove is connected to the driving rod, and the square rod is movably opposed to the slider.

[0009] Preferably, the flushing assembly includes a suction pipe fixedly mounted on the treatment box, a piston being slidably connected inside the suction pipe, a sliding rod being fixedly mounted on the piston, a connecting plate being fixedly mounted on the end of the sliding rod away from the piston, a second elastic element being sleeved on the outer side of the sliding rod with two ends respectively connected to the suction pipe and the connecting plate, an inlet pipe and a discharge pipe with a one-way valve being connected to the suction pipe, an end of the inlet pipe away from the suction pipe passing through the treatment box and connected to a water storage tank, the water storage tank being fixed in the treatment box by a support rod, an end of the discharge pipe away from the suction pipe passing through a working shell and connected to a flushing pipe, and the flushing pipe being placed on the upper side of the filter seat.

[0010] Preferably, the transmission assembly includes a half gear connected to the driving rod, the working shell is rotatably connected to a driven gear that intermittently meshes with the half gear, a drum is fixedly provided on the driven gear, a pull rope is wound around the drum, the end of the pull rope away from the drum is connected to the connecting plate, a guide rod is fixedly provided on the bracket, and the pull rope is slidably connected to the guide rod.

[0011] Preferably, an ear plate is fixedly provided in the working shell, and the ear plate is rotatably connected to a swing plate through a pin shaft, and the end of the swing plate away from the ear plate is connected to the flushing pipe, and a push rod connected to the connecting plate is slidably connected in the working shell, and the push rod and the swing plate are movably opposed to each other.

[0012] Preferably, a push switch is fixedly provided on the inner wall of the working shell, and the push switch is movably abutted against the filter seat and is electrically connected to the driving motor.

[0013] Preferably, it also includes a vacuum tank, a vacuum pump, a first booster pump and a second booster pump, wherein the vacuum tank, the vacuum pump and the processing box are connected from left to right in sequence through a vacuum pipe, the first booster pump is arranged on the solid pipe, and the second booster pump is arranged on the liquid pipe.

[0014] The present invention also discloses a method for using the excrement filtering device, comprising the following steps: S1: The vacuum pump draws the excrement in the vacuum tank to the treatment box. When the excrement passes through the filter seat, one of the filter plates filters and separates it. The filtered liquid excrement is continuously transported by the second booster pump through the liquid pipeline, and the filtered and intercepted solid excrement is continuously transported by the first booster pump through the solid pipeline. With the long-term operation of the filter seat, the mesh of the filter plate on the filter seat that intercepts the excrement is blocked by fine excrement. S2: The staff controls the electric telescopic rod to drive the filter seat to slide in the processing box, so that another idle filter plate on the filter seat moves to the processing box for filtering and separation, and the filter plate that previously filtered the excrement and had its mesh blocked moves to the side of the working shell; S3: As the filter seat continues to move horizontally, the square rod on the driving rod is inserted into the square groove of the rotating rod, the square rod pushes the slider, and the slider drives the positioning rod to move out of the positioning groove, thereby releasing the rotation restriction between the filter plate and the filter frame by the positioning rod; Then the side of the filter seat abuts against the inner wall of the working shell, and at the same time the filter seat squeezes the push switch on the inner wall of the working shell, so that the push switch controls the driving motor to work; S4: When the driving motor is working, the driving rod drives the rotating rod to rotate half a circle, so that the rotating rod drives the filter plate to rotate relative to the filter frame, so that the upper and lower sides of the filter plate are turned over; When the driving rod rotates, the outer half gear meshes with the driven gear for transmission, the driven gear drives the reel to reel in the draw rope, the draw rope applies tension to the connecting plate, the connecting plate drives the slider to slide in the suction pipe through the sliding rod, the suction pipe extracts liquid excrement in the water tank through the liquid inlet pipe, as the half gear continues to rotate, the half gear no longer meshes with the driven gear for transmission, the reel no longer generates tension on the draw rope, the piston resets and moves under the elastic force of the second elastic element, the suction pipe discharges the previously extracted liquid excrement to the flushing pipe through the liquid discharge pipe, the flushing pipe flushes the flipped filter plate; When the piston is reset and moves in the suction pipe, the connecting plate continuously pushes the swing plate through the push rod, and the swing plate rotates around the pin shaft at the connection between the swing plate and the ear plate, so that the flushing pipe flushes from one side of the filter plate to the other side, and the excrement waste liquid generated after flushing the filter plate flows back to the liquid pipeline from the drainage trough; Then the driving motor drives the driving rod to automatically reset and rotate, so that the upper and lower sides of the filter plate are reset and flipped; S5: With the long-term operation of the filter seat, the mesh of the filter plate on the filter seat and placed in the treatment box for intercepting excrement is blocked by fine excrement, and S2-S4 are repeated to realize the backwashing operation of the filter plate without stopping or dismantling the machine.

[0015] Compared with the prior art, the present invention provides an excrement filtering device and a method of use, which have the following beneficial effects: 1. The excrement filtering device and the method of use thereof are provided with two filter plates for filtering and separating excrement, so that while the excrement in the mesh of one filter plate is being cleaned, the other filter plate continues to filter and separate the excrement, and the staff does not need to stop the machine for maintenance or replacement of the filter plate, thereby achieving uninterrupted and continuous filtering and separation work of the filter plate.

[0016] 2. The excrement filtering device and its use method, before flushing the excrement inside the filter plate mesh, the rotating component drives the filter plate to flip up and down, thereby reversely flushing the filter plate mesh, thereby facilitating the smooth flushing of fine excrement stuck in the filter plate mesh, thereby improving the flushing effect of the excrement inside the filter plate mesh.

[0017] 3. The excrement filtering device and the method of use have a positioning rod inserted between the rotating rod and the filter frame, so that when the filter plate filters and separates the excrement passing through the processing box, the filter plate and the filter frame are prevented from rotating, resulting in a gap between the filter plate and the filter frame, thereby ensuring the filtering and separation effect of the filter seat on the excrement, and when the rotating assembly is working, the rotating rod and the filter frame are automatically separated, without the need for staff operation, thereby reducing the workload of the staff.

[0018] 4. The excrement filtering device and its use method, when the piston is reset and moved in the suction pipe, the connecting plate continuously pushes the swing plate through the push rod, and the swing plate rotates around the pin shaft at the connection between it and the ear plate, so that the flushing pipe flushes from one side of the filter plate to the other side, thereby fully flushing the filter plate and ensuring the flushing and cleaning effect of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the external structure of the processing box of the present invention; Figure 2 For the present invention Figure 1 A partial enlarged structural diagram of the middle part; Figure 3 It is a schematic cross-sectional structure diagram of the processing box of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the partially enlarged structure of the middle B part; Figure 5 For the present invention Figure 3 A schematic diagram of the partially enlarged structure of the middle C part; Figure 6 For the present invention Figure 3 The schematic diagram of the partial enlarged structure of the middle D part; Figure 7 It is a structural schematic diagram of the filter seat of the present invention; Figure 8 The cross-sectional structure of the filter seat of the present invention is shown in FIG. Figure 1 ; Fig. 9 The cross-sectional structure of the filter seat of the present invention is shown in FIG. Figure 2 ; Fig.10 It is a schematic diagram of the structure of the support of the present invention; Fig.11 It is a schematic diagram of the structure of the present invention.

[0020] In the figure: 1, treatment box; 101, solid pipeline; 102, liquid pipeline; 103, drainage trough; 2, filter seat; 201, filter frame; 2011, rotating rod; 2012, torsion spring; 202, filter plate; 3, working shell; 4, bracket; 401, electric telescopic rod; 402, guide rod; 5, square groove; 501, slider; 502, first elastic element; 503, positioning rod; 504, positioning groove; 6, support; 601, drive motor; 602, drive rod; 603, square Rod; 7, suction pipe; 701, piston; 702, sliding rod; 703, connecting plate; 704, second elastic element; 705, liquid inlet pipe; 706, liquid discharge pipe; 707, water storage tank; 708, flushing pipe; 8, half gear; 801, driven gear; 802, reel; 803, pull rope; 9, ear plate; 901, swing plate; 902, push rod; 10, push switch; 11, vacuum tank; 12, vacuum pump; 13, first booster pump; 14, second booster pump; 15, vacuum pipeline. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] Example 1: Reference Figure 1 , Figure 3 , Figure 7 , Fig.10 and Fig.11 , an excrement filtering device, comprising a processing box 1, on which a solid pipeline 101 and a liquid pipeline 102 are arranged, and further comprising: The filter seat 2 is slidably connected to the processing box 1, and the filter seat 2 includes a filter frame 201 and two filter plates 202 arranged on the filter frame 201; A working shell 3 is fixedly arranged on the outside of the processing box 1. The processing box 1 is provided with a drainage groove 103 connected with the working shell 3. A bracket 4 is fixedly arranged on the working shell 3. The bracket 4 is provided with an electric telescopic rod 401 for driving the filter seat 2 to move. Backwashing mechanism: two groups of backwashing mechanisms are symmetrically arranged on both sides of the working shell 3, and are used to flush the excrement that blocks the mesh of the filter plate 202. The backwashing mechanism includes a rotating assembly for driving the filter plate 202 to rotate, a flushing assembly for flushing the filter plate 202, and a transmission assembly connecting the flushing assembly and the rotating assembly.

[0024] Furthermore, it also includes a vacuum tank 11, a vacuum pump 12, a first booster pump 13 and a second booster pump 14. The vacuum tank 11, the vacuum pump 12 and the processing box 1 are connected from left to right in sequence through a vacuum pipe 15. The first booster pump 13 is arranged on the solid pipe 101, and the second booster pump 14 is arranged on the liquid pipe 102.

[0025] Specifically, the vacuum pump 12 draws the excrement in the vacuum tank 11 to the processing box 1. When the excrement passes through the filter seat 2, one of the filter plates 202 filters and separates it. The filtered liquid excrement is continuously transported by the second booster pump 14 through the liquid pipeline 102, and the filtered and intercepted solid excrement is continuously transported by the first booster pump 13 through the solid pipeline 101. With the long-term operation of the filter seat 2, the mesh of the filter plate 202 on the filter seat 2 that intercepts the excrement is clogged by fine excrement, and the backwashing mechanism is controlled to work. Before the excrement is flushed inside the mesh of the filter plate 202, the flushing component The rotating assembly drives the filter plate 202 to flip up and down, thereby reversely flushing the mesh of the filter plate 202, thereby facilitating the smooth flushing of fine excrement stuck in the mesh of the filter plate 202, thereby improving the flushing effect of the excrement inside the mesh of the filter plate 202. By setting two filter plates 202 for filtering and separating excrement, while the excrement in the mesh of one of the filter plates 202 is being cleaned, the other filter plate 202 continues to filter and separate the excrement, and there is no need for staff to stop the machine for maintenance or replacement of the filter plate 202, thereby achieving uninterrupted and continuous filtering and separation work of the filter plate 202.

[0026] Example 2: Reference Figure 3 , Figure 4 , Figure 7 , Figure 8 and Fig. 9, an excrement filtering device, based on embodiment 1, further, a rotating rod 2011 fixedly connected to the filter plate 202 is rotatably connected to the filter frame 201, a torsion spring 2012 for resetting and rotating the filter plate 202 is arranged between the rotating rod 2011 and the filter frame 201, and a positioning component plugged into the filter frame 201 is arranged on the rotating rod 2011.

[0027] Furthermore, the positioning assembly includes a square groove 5 opened on the rotating rod 2011, a slider 501 is slidably connected in the square groove 5, a first elastic element 502 is arranged between the slider 501 and the inner wall of the square groove 5 (the first elastic element 502 can preferably be a spring), a positioning rod 503 slidably connected to the rotating rod 2011 is fixed on the slider 501, and a positioning groove 504 cooperating with the positioning rod 503 is opened on the filter frame 201.

[0028] Specifically, the filter plate 202 is rotatably connected to the filter frame 201 via the rotating rod 2011. When the filter plate 202 filters and separates the excreta passing through the treatment box 1, the positioning rod 503 is plugged into the filter frame 201 to prevent the filter plate 202 from rotating at will when impacted by the excreta, resulting in a gap between the filter plate 202 and the filter frame 201, thereby ensuring the filtering and separation effect of the filter seat 2 on the excreta. When the rotating component is working, the rotating rod 201 is automatically separated from the filter frame 201 without the need for staff operation, thereby reducing the workload of staff.

[0029] Example 3: Reference Figure 3 , Figure 4 , Figure 5 , Figure 8 and Fig. 9 , a feces filtering device, based on Example 2, further, the rotating component includes a support 6 fixedly mounted on the working shell 3, a driving motor 601 is fixedly mounted on the support 6, the output shaft of the driving motor 601 is connected to a driving rod 602, the driving rod 602 is connected to a square rod 603 plugged into the square groove 5, and the square rod 603 is movably abutted against the slider 501.

[0030] Specifically, when the rotating assembly is working, the square rod 603 of the driving motor 601 is inserted into the square groove 5 and abuts against the slider 501, and the square rod 603 drives the rotating rod 2011 to rotate, and then the rotating rod 2011 drives the filter plate 202 to rotate relative to the filter frame 201, so that the filter plate 202 is flipped up and down.

[0031] Example 4: Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Fig.10, a feces filtering device, on the basis of embodiment 3, further, a flushing component includes a suction pipe 7 fixedly mounted on the processing box 1, a piston 701 is slidably connected in the suction pipe 7, a sliding rod 702 is fixedly mounted on the piston 701, a connecting plate 703 is fixedly mounted on the end of the sliding rod 702 away from the piston 701, a second elastic element 704 is sleeved on the outer side of the sliding rod 702 with two ends respectively connected to the suction pipe 7 and the connecting plate 703, an inlet pipe 705 and a discharge pipe 706 with a one-way valve are connected to the suction pipe 7, an end of the inlet pipe 705 away from the suction pipe 7 passes through the processing box 1 and is connected to a water storage tank 707, the water storage tank 707 is fixed in the processing box 1 through a support rod, and an end of the discharge pipe 706 away from the suction pipe 7 passes through the working shell 3 and is connected to a flushing pipe 708, and the flushing pipe 708 is placed on the upper side of the filter seat 2.

[0032] Furthermore, the transmission assembly includes a half gear 8 connected to the driving rod 602, a driven gear 801 intermittently meshing with the half gear 8 is rotatably connected to the working shell 3, a reel 802 is fixedly provided on the driven gear 801, a pull rope 803 is wound around the reel 802, and the end of the pull rope 803 away from the reel 802 is connected to the connecting plate 703, a guide rod 402 is fixedly provided on the bracket 4, and the pull rope 803 is slidably connected to the guide rod 402.

[0033] Specifically, when the driving rod 602 rotates, the outer half gear 8 and the driven gear 801 are initially meshed and transmitted, and the driven gear 801 drives the reel 802 to reel in the pull rope 803, and the pull rope 803 applies tension to the connecting plate 703. The connecting plate 703 drives the slider 501 to slide in the suction pipe 7 through the sliding rod 702, and the suction pipe 7 extracts liquid excrement in the water storage tank 707 through the liquid inlet pipe 705. As the half gear 8 continues to rotate, the half gear 8 is no longer meshed and transmitted with the driven gear 801. The reel 802 no longer generates tension on the pull rope 803, and the piston 701 returns to its original position under the elastic force of the second elastic element 704 (the second elastic element 704 can preferably be a spring). The suction tube 7 discharges the previously extracted liquid excrement through the discharge tube 706 to the flushing tube 708. The flushing tube 708 flushes the flipped filter plate 202, making it easier for fine excrement stuck in the mesh of the filter plate 202 to be flushed out, thereby improving the flushing effect on the excrement inside the mesh of the filter plate 202.

[0034] Example 5: Reference Figure 1 , Figure 3 and Figure 6 , an excrement filtering device, based on embodiment 4, further, an ear plate 9 is fixedly provided in the working shell 3, the ear plate 9 is rotatably connected to a swing plate 901 through a pin shaft, the end of the swing plate 901 away from the ear plate 9 is connected to a flushing pipe 708, and a push rod 902 connected to the connecting plate 703 is slidably connected in the working shell 3, and the push rod 902 and the swing plate 901 are movably opposed to each other.

[0035] Specifically, when the piston 701 resets and moves in the suction pipe 7, the connecting plate 703 continuously pushes the swing plate 901 through the push rod 902, and the swing plate 901 rotates around the pin shaft at the connection between it and the ear plate 9, so that the flushing pipe 708 flushes from one side of the filter plate 202 to the other side, thereby fully flushing the filter plate 202 and ensuring the flushing and cleaning effect of the filter plate 202.

[0036] Example 6: Reference Figure 3 and Figure 5 , an excrement filtering device, based on Example 5, further, a push switch 10 is fixedly provided on the inner wall of the working shell 3, the push switch 10 is movably abutted against the filter seat 2 and is electrically connected to the driving motor 601.

[0037] Specifically, the staff controls the electric telescopic rod 401 to work, so that the electric telescopic rod 401 drives the filter seat 2 to slide in the processing box 1, so that another idle filter plate 202 on the filter seat 2 is moved to the processing box 1 for filtering and separation. The filter plate 202 that has previously filtered excrement and has a clogged mesh moves to the side of the working shell 3, and then the side of the filter seat 2 abuts against the inner wall of the working shell 3. At the same time, the filter seat 2 squeezes the push switch 10 on the inner wall of the working shell 3, so that the push switch 10 controls the drive motor 601 to work. The drive motor 601 rotates half a circle and then resets and rotates half a circle.

[0038] The present invention also discloses a method for using the excrement filtering device, comprising the following steps: S1: The vacuum pump 12 pumps the excrement in the vacuum tank 11 to the treatment box 1. When the excrement passes through the filter seat 2, one of the filter plates 202 filters and separates it. The filtered liquid excrement is continuously transported by the second booster pump 14 through the liquid pipeline 102, and the filtered and intercepted solid excrement is continuously transported by the first booster pump 13 through the solid pipeline 101. With the long-term operation of the filter seat 2, the mesh of the filter plate 202 on the filter seat 2 that intercepts the excrement is clogged by fine excrement. S2: The staff controls the electric telescopic rod 401 to work, so that the electric telescopic rod 401 drives the filter seat 2 to slide in the processing box 1, so that another idle filter plate 202 on the filter seat 2 moves to the processing box 1 for filtering and separation, and the filter plate 202 that previously filtered the excrement and had its mesh blocked moves to the side of the working shell 3; S3: As the filter seat 2 continues to move horizontally, the square rod 603 on the driving rod 602 is inserted into the square groove 5 of the rotating rod 2011, and the square rod 603 pushes the slider 501, and the slider 501 drives the positioning rod 503 to move out of the positioning groove 504, thereby releasing the rotation restriction between the filter plate 202 and the filter frame 201 by the positioning rod 503; Then the side of the filter seat 2 abuts against the inner wall of the working shell 3, and at the same time, the filter seat 2 presses the push switch 10 on the inner wall of the working shell 3, so that the push switch 10 controls the driving motor 601 to work; S4: When the driving motor 601 is working, the driving rod 602 drives the rotating rod 2011 to rotate half a circle, so that the rotating rod 2011 drives the filter plate 202 to rotate relative to the filter frame 201, so that the upper and lower sides of the filter plate 202 are turned over; When the driving rod 602 rotates, the outer half gear 8 meshes with the driven gear 801 for transmission, and the driven gear 801 drives the reel 802 to reel in the drawstring 803, and the drawstring 803 applies tension to the connecting plate 703. The connecting plate 703 drives the slider 501 to slide in the suction pipe 7 through the sliding rod 702, and the suction pipe 7 extracts liquid excrement in the water storage tank 707 through the liquid inlet pipe 705. As the half gear 8 continues to rotate, the half gear 8 is no longer meshed with the driven gear 801 for transmission, and the reel 802 no longer generates tension on the drawstring 803. The piston 701 resets and moves under the elastic force of the second elastic element 704, and the suction pipe 7 discharges the previously extracted liquid excrement to the flushing pipe 708 through the liquid discharge pipe 706, and the flushing pipe 708 flushes the flipped filter plate 202; When the piston 701 is reset and moved in the suction pipe 7, the connecting plate 703 continuously pushes the swing plate 901 through the push rod 902, and the swing plate 901 rotates around the pin shaft at the connection between the swing plate 9 and the ear plate 9, so that the flushing pipe 708 flushes from one side of the filter plate 202 to the other side, and the excrement waste liquid generated after flushing the filter plate 202 flows back from the drainage groove 103 to the liquid pipeline 102; Then the driving motor 601 drives the driving rod 602 to automatically reset and rotate, so that the upper and lower sides of the filter plate 202 are reset and flipped; S5: With the long-term operation of the filter seat 2, the mesh of the filter plate 202 on the filter seat 2 and placed in the processing box 1 for intercepting excrement is blocked by fine excrement, and S2-S4 are repeated to realize the backwashing operation of the filter plate 202 without stopping or disassembling the machine.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An excrement filtering device, comprising a treatment box (1), wherein the treatment box (1) is provided with a solid pipeline (101) and a liquid pipeline (102), characterized in that: Also includes: A filter seat (2), the filter seat (2) being slidably connected to the processing box (1), the filter seat (2) comprising a filter frame (201) and two filter plates (202) arranged on the filter frame (201); A working shell (3), the working shell (3) being fixedly mounted on the outside of the processing box (1), the processing box (1) being provided with a drainage groove (103) connected to the working shell (3), the working shell (3) being fixedly mounted with a bracket (4), the bracket (4) being provided with an electric telescopic rod (401) for driving the filter seat (2) to move; A backwashing mechanism, wherein two groups of the backwashing mechanism are arranged symmetrically on both sides of the working shell (3), and are used to flush excrement that blocks the mesh of the filter plate (202). The backwashing mechanism comprises a rotating assembly for driving the filter plate (202) to rotate, a flushing assembly for flushing the filter plate (202), and a transmission assembly connecting the flushing assembly and the rotating assembly.

2. The excrement filtering device according to claim 1, characterized in that: A rotating rod (2011) fixedly connected to the filter plate (202) is rotatably connected to the filter frame (201), a torsion spring (2012) for resetting and rotating the filter plate (202) is provided between the rotating rod (2011) and the filter frame (201), and a positioning component plugged into the filter frame (201) is provided on the rotating rod (2011).

3. The excrement filtering device according to claim 2, characterized in that: The positioning assembly comprises a square groove (5) formed on a rotating rod (2011), a slider (501) being slidably connected in the square groove (5), a first elastic element (502) being arranged between the slider (501) and the inner wall of the square groove (5), a positioning rod (503) being slidably connected to the rotating rod (2011) being fixedly arranged on the slider (501), and a positioning groove (504) being matched with the positioning rod (503) being formed on the filter frame (201).

4. The excrement filtering device according to claim 3, characterized in that: The rotating assembly comprises a support (6) fixedly mounted on the working shell (3); a driving motor (601) is fixedly mounted on the support (6); an output shaft of the driving motor (601) is connected to a driving rod (602); a square rod (603) plugged into the square groove (5) is connected to the driving rod (602); the square rod (603) and the sliding block (501) are movably opposed to each other.

5. The excrement filtering device according to claim 4, characterized in that: The flushing assembly comprises a suction pipe (7) fixedly mounted on the treatment box (1), a piston (701) being slidably connected inside the suction pipe (7), a sliding rod (702) being fixedly mounted on the piston (701), a connecting plate (703) being fixedly mounted on one end of the sliding rod (702) away from the piston (701), a second elastic element (704) having two ends respectively connected to the suction pipe (7) and the connecting plate (703), the suction pipe (7) A liquid inlet pipe (705) and a liquid discharge pipe (706) with a one-way valve are connected to the upper portion; the end of the liquid inlet pipe (705) away from the suction pipe (7) passes through the treatment box (1) and is connected to a water storage tank (707); the water storage tank (707) is fixed in the treatment box (1) by a support rod; the end of the liquid discharge pipe (706) away from the suction pipe (7) passes through the working shell (3) and is connected to a flushing pipe (708); the flushing pipe (708) is placed on the upper side of the filter seat (2).

6. The excrement filtering device according to claim 5, characterized in that: The transmission assembly comprises a half gear (8) connected to a driving rod (602); a driven gear (801) intermittently meshing with the half gear (8) is rotatably connected to the working housing (3); a reel (802) is fixedly provided on the driven gear (801); a pull rope (803) is wound around the reel (802); an end of the pull rope (803) away from the reel (802) is connected to a connecting plate (703); a guide rod (402) is fixedly provided on the bracket (4); and the pull rope (803) is slidably connected to the guide rod (402).

7. The excrement filtering device according to claim 6, characterized in that: An ear plate (9) is fixedly provided in the working shell (3), and the ear plate (9) is rotatably connected to a swing plate (901) via a pin shaft, and one end of the swing plate (901) away from the ear plate (9) is connected to a flushing pipe (708), and a push rod (902) connected to the connecting plate (703) is slidably connected in the working shell (3), and the push rod (902) and the swing plate (901) are movably opposed to each other.

8. The excrement filtering device according to claim 7, characterized in that: A push switch (10) is fixedly provided on the inner wall of the working shell (3), and the push switch (10) is movably abutted against the filter seat (2) and is electrically connected to the drive motor (601).

9. The excrement filtering device according to claim 8, characterized in that: The invention also comprises a vacuum tank (11), a vacuum pump (12), a first booster pump (13) and a second booster pump (14); the vacuum tank (11), the vacuum pump (12) and the processing box (1) are connected in sequence from left to right via a vacuum pipeline (15); the first booster pump (13) is arranged on the solid pipeline (101), and the second booster pump (14) is arranged on the liquid pipeline (102).

10. A method for using the excrement filtering device according to claim 9, characterized in that: The following steps are involved: S1: The vacuum pump (12) draws the excrement in the vacuum tank (11) into the processing box (1). When the excrement passes through the filter seat (2), one of the filter plates (202) filters and separates the excrement. The filtered liquid excrement is continuously transported by the second booster pump (14) through the liquid pipeline (102). The filtered and intercepted solid excrement is continuously transported by the first booster pump (13) through the solid pipeline (101). As the filter seat (2) works for a long time, the mesh of the filter plate (202) on the filter seat (2) that intercepts the excrement is clogged by fine excrement. S2: The staff controls the electric telescopic rod (401) to operate, so that the electric telescopic rod (401) drives the filter seat (2) to slide in the processing box (1), so that another idle filter plate (202) on the filter seat (2) moves into the processing box (1) to perform filtering and separation work, while the filter plate (202) that has previously filtered excrement and whose mesh is blocked moves to the side of the working shell (3); S3: As the filter seat (2) continues to move horizontally, the square rod (603) on the driving rod (602) is inserted into the square groove (5) of the rotating rod (2011), and the square rod (603) pushes the slider (501), and the slider (501) drives the positioning rod (503) to move out of the positioning groove (504), thereby releasing the rotation restriction between the filter plate (202) and the filter frame (201) imposed by the positioning rod (503); Then, the side of the filter seat (2) abuts against the inner wall of the working shell (3), and at the same time, the filter seat (2) presses the push switch (10) on the inner wall of the working shell (3), so that the push switch (10) controls the drive motor (601) to work; S4: When the driving motor (601) is in operation, the driving rod (602) drives the rotating rod (2011) to rotate half a circle, so that the rotating rod (2011) drives the filter plate (202) to rotate relative to the filter frame (201), so that the upper and lower sides of the filter plate (202) are turned over; When the driving rod (602) rotates, the outer half gear (8) meshes with the driven gear (801) to transmit the drive, and the driven gear (801) drives the reel (802) to reel in the pull rope (803), and the pull rope (803) applies a pulling force to the connecting plate (703), and the connecting plate (703) drives the slider (501) to slide in the suction pipe (7) through the sliding rod (702), and the suction pipe (7) extracts the liquid in the water storage tank (707) through the liquid inlet pipe (705) to discharge the liquid. As the half gear (8) continues to rotate, the half gear (8) no longer meshes with the driven gear (801) for transmission, the reel (802) no longer generates a pulling force on the pull rope (803), the piston (701) returns to its original position under the elastic force of the second elastic element (704), the suction pipe (7) discharges the previously extracted liquid excrement through the discharge pipe (706) to the flushing pipe (708), and the flushing pipe (708) flushes the flipped filter plate (202); When the piston (701) is reset and moved in the suction pipe (7), the connecting plate (703) continuously pushes the swing plate (901) through the push rod (902), and the swing plate (901) rotates around the pin shaft at the connection between the swing plate and the ear plate (9), so that the flushing pipe (708) flushes from one side of the filter plate (202) to the other side, and the excrement waste liquid generated after flushing the filter plate (202) flows back from the drainage groove (103) to the liquid pipe (102); Then, the driving motor (601) drives the driving rod (602) to automatically reset and rotate, so that the upper and lower sides of the filter plate (202) are reset and flipped; S5: As the filter seat (2) works for a long time, the mesh of the filter plate (202) on the filter seat (2) and placed in the processing box (1) for intercepting excrement is clogged by fine excrement, and S2-S4 are repeated to achieve a backwashing operation on the filter plate (202) without stopping or disassembling the machine.

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