Method and device for removing feces from courtyard septic tank

Abstract

The invention discloses a method and device for removing feces from a septic tank in a courtyard. The method for removing feces from a septic tank in a courtyard is as follows: a general septic tank is built under the ground of the courtyard; a fixed feces suction pipe is arranged between the septic tank and the alley of the courtyard; the front end of the fixed feces suction pipe is installed in the septic tank, and the rear end of the fixed feces suction pipe is arranged at a corresponding position of the alley that can be reached by a feces truck; after the feces truck enters the alley, the vehicle-mounted feces suction pipe is sealed and connected with the rear end of the fixed feces suction pipe, and feces in the septic tank are sucked out by a vehicle-mounted pump.

Description

Technical Field

[0001] The present invention relates to the field of urban drainage, and in particular to a method and device for removing feces from a courtyard septic tank. Background Art

[0002] At present, most of the old cities are combined sewer areas. In the early years, the septic tanks in the courtyards were cancelled, but the septic tanks could not be converted into water-flushed toilets because the fecal water could not be discharged into the combined sewer pipes. Since then, residents have switched to using public toilets in the alleys. If you want to build a toilet in a courtyard, you have to solve the problem of the location and suction of the septic tank. Due to the narrow alleys and the arrangement of municipal pipelines, the septic tank is generally set up in the courtyard; the septic tank in the courtyard needs to be pumped regularly, and the septic truck must be parked in the alley, and the suction pipe must be carried in and out of the courtyard manually to suck the septic water; but the suction pipes of the septic trucks are not long, mainly because the lengthened suction pipes will cause mopping, scratching and difficulty in placing on the vehicle. Therefore, for most courtyards with depth, it is not easy to set up a septic tank in the courtyard without solving the suction problem, and without a septic tank, it is impossible to build a water-flushed toilet in the courtyard.

[0003] In rural areas, in order to improve sanitary conditions, most households have built toilets in the yard, but a considerable number of households have built septic tanks outside the yard. This facilitates the pumping of fecal water, but affects the arrangement of external road municipal pipelines. The manhole covers and tall ventilation pipes of most of the external septic tanks also bring safety and landscape problems.

[0004] In urban building areas, the location of septic tanks within the building area must be convenient for septic trucks to enter and exit, and the selection of the location of the septic tank is somewhat difficult.

[0005] In addition, the manhole cover needs to be opened when the septic tank is pumped, and the odor in the tank leaks out, causing a bad environment around the pumping process. This common problem has never been solved. Summary of the invention

[0006] The purpose of the present invention is to overcome the problems existing in the above-mentioned prior art and to provide a method and device for removing feces from a courtyard septic tank.

[0007] According to a first aspect of the present invention, a method for removing feces from a courtyard septic tank of the present invention comprises the following steps:

[0008] Construction of general septic tanks beneath the ground level of the courtyard houses;

[0009] A fixed sewage suction pipe is installed between the septic tank and the alley of the quadrangle;

[0010] The front end of the fixed feces suction pipe is installed in the septic tank, and the rear end of the fixed feces suction pipe is arranged at a corresponding position in the alley that can be reached by a feces truck;

[0011] After the manure truck enters the alley, the vehicle-mounted manure suction pipe is sealed and connected to the rear end of the fixed manure suction pipe, and the manure in the septic tank is sucked out by the vehicle-mounted pump.

[0012] Preferably, the septic tank includes a tank body located underground, and the tank body includes: a bottom slope inclined from the feces inlet side to the feces outlet side to facilitate feces to slide down to the bottom of the feces outlet side; a feces suction pit located on the feces outlet side and sunken downward from the bottom of the septic tank; wherein the front end of the fixed feces suction pipe is close to the feces suction pit and located above the feces suction pit to facilitate clearing all the feces in the tank body.

[0013] Preferably, the rear end of the fixed feces suction pipe is installed in a suction pipe well, and the suction pipe well is used to fix the rear end of the fixed feces suction pipe to a corresponding position in the alley that can be reached by a feces truck.

[0014] Preferably, the suction pipe shaft comprises: a clamping seat located in the suction pipe shaft and installed on the end of the fixed suction pipe, which is used to clamp the clamping head of the suction pipe on the manure truck; and a tube cover installed on the suction pipe shaft, which is used to open or close the suction pipe shaft.

[0015] Preferably, the cylinder cover is provided with a mechanical lock or an electronic lock for opening the cylinder cover.

[0016] Preferably, the septic tank also includes: a partition for dividing the septic tank into three or two tanks; a slide gate arranged at the bottom of the partition, which is used to open the gate device while the feces in the septic tank is being sucked by the feces truck, so that the feces in the septic tank slides to the bottom of the feces outlet side through suction through the fixed feces suction pipe until all the feces are sucked into the feces truck.

[0017] Preferably, the slide gate comprises: a slide gate seat arranged at the through hole at the bottom of the partition; a slide plate installed on the slide gate seat; and a handle rod installed on the slide plate.

[0018] Preferably, the gate seat is provided with a bow spring for applying elastic force to the gate.

[0019] Preferably, the septic tank also includes: a wellbore on the tank body; a double-layer sealed manhole cover on the wellbore; a through hole arranged on the sealed manhole cover, for inserting a handle for connecting a handle rod when sucking feces; a round hole plug used in conjunction with the through hole on the sealed manhole cover, for blocking the through hole when not sucking feces.

[0020] Preferably, a sewage pipe is provided between the septic tank and the drainage inspection well located in the alley, and the sewage pipe is arranged side by side with the fixed fecal suction pipe to meet the need for compact arrangement of pipes under the narrow corridors in the courtyard.

[0021] According to a second aspect of the present invention, a feces removal device for a courtyard septic tank of the present invention comprises:

[0022] A general septic tank set beneath the ground level of a courtyard house;

[0023] A fixed fecal suction pipe installed between the septic tank and the alley of the courtyard;

[0024] The front end of the fixed feces suction pipe is installed in the septic tank, and the rear end of the fixed feces suction pipe is arranged at a corresponding position in the alley that can be reached by the feces truck;

[0025] When the on-board suction pipe of the manure truck entering the alley is sealed and connected to the rear end of the fixed suction pipe, the manure truck sucks the manure in the septic tank through the on-board pump.

[0026] The beneficial effects of the present invention are embodied in the following aspects:

[0027] The present invention adds fixed fecal suction pipes and bottom slopes in the septic tank, fecal suction pits, and gates, so that the suction of fecal trucks is not affected by the distance and position of the septic tank. Septic tanks are set up in courtyards of old city alleys and residential courtyards in villages and towns, and suction is carried out outside the courtyard, so that water-flushing toilets can be brought into the courtyard to meet the needs of residents' living sanitation conditions; in building areas, fecal trucks can be prevented from entering the courtyard, and fecal suction can be carried out outside the area, which is convenient for arranging the location of the septic tank. Since there is no need to open the manhole cover of the septic tank and the pipeline is sealed and connected for suction, there will be no odor leakage during the suction process, which can avoid the generation of a foul-smelling environment to the greatest extent.

[0028] The present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1a It is a partial top view of the first embodiment of the feces removal device for the courtyard septic tank of the present invention, which is from Figure 1b A top view after the A3-A3 section; Figure 1b yes Figure 1a A cross-sectional view of B3-B3; Figure 1c yes Figure 1a A cross-sectional view of C3-C3; Figure 1d yes Figure 1a The cross-sectional view of D3-D3; Figure 1e yes Figure 1a A cross-sectional view of E3-E3; Figure 1f yes Figure 1a A cross-sectional view of F3-F3;

[0030] Figure 2a It is a partial top view of the second embodiment of the feces removal device for the courtyard septic tank of the present invention, which is from Figure 2b A top view after the A2-A2 section; Figure 2b yes Figure 2aA cross-sectional view of B2-B2; Figure 2c yes Figure 2a A cross-sectional view of C2-C2; Figure 2d yes Figure 2a The cross-sectional view of D2-D2; Figure 2e yes Figure 2a A cross-sectional view of E2-E2; Figure 2f yes Figure 2a The cross-sectional view of F2-F2;

[0031] Figure 3a It is a partial top view of the third embodiment of the feces removal device for the courtyard septic tank of the present invention, which is from Figure 2b A top view after the A1-A1 section; Figure 3b yes Figure 3a The cross-sectional view of B1-B1; Figure 3c yes Figure 3a The cross-sectional view of C1-C1; Figure 3d yes Figure 3a The cross-sectional view of D1-D1; Figure 3e yes Figure 3a The cross-sectional view of E1-E1; Figure 3f yes Figure 3a The cross-sectional view of F1-F1;

[0032] Figure 4a is a schematic diagram of a slide gate of the present invention; Figure 4b yes Figure 4a A4-A4 cross-sectional view; Figure 4c yes Figure 4b A cross-sectional view of C4-C4;

[0033] Figure 5a It is a top view of the handle A5-A5; Figure 5b yes Figure 5a A cross-sectional view of B5-B5;

[0034] Figure 6a is a top view of a round hole plug for plugging a through hole on a septic tank shaft for inserting a handle; Figure 6b yes Figure 6a Cross-sectional view of B6-B6.

[0035] Explanation of the reference numerals: 2-manure pipe; 3-septic tank; 4-sewage well; 5-drainage inspection well; 6-manure inlet; 7-manure outlet; 8-fixed manure suction pipe; 9-bottom through hole; 10-partition; 11 handle; 12-manure suction pit; 13-sewage pipe; 14-bottom slope; 15 seat; 16 plug gate seat; 17-plug; 18-handle rod; 19-drain pipe; 20-bow spring; 21-suction tube well; 22-tube cover; 23-well shaft; 24-double-layer sealed well cover; 25-through hole; 26-round hole plug; 27-clamp; 28-plug gate; 29-vehicle-mounted manure suction pipe; 30-Siheyuan; 31-hutong; 32-knock door. DETAILED DESCRIPTION

[0036] In view of the technical problem that a manure truck cannot enter a courtyard house to suck out the manure in a septic tank, the present invention develops a manure removal method and device for a septic tank in a courtyard house, so that a manure truck can suck out the manure in the septic tank in the courtyard house from an alley outside the courtyard house.

[0037] See also Figure 1a-Figure 3f The feces removal method of a courtyard septic tank of the present invention comprises: building a general septic tank 3 under the ground of the courtyard; setting a fixed feces suction pipe 8 between the septic tank 3 and the alley of the courtyard; installing the front end of the fixed feces suction pipe 8 in the septic tank 3, and setting the rear end of the fixed feces suction pipe 8 at a corresponding position of the alley that can be reached by a feces truck; after the feces truck enters the alley, the vehicle-mounted feces suction pipe 29 is sealed and connected with the rear end of the fixed feces suction pipe 8, and the feces in the septic tank 3 are sucked out by the vehicle-mounted pump.

[0038] The feces removal device of a courtyard septic tank of the present invention comprises: a general septic tank 3 arranged under the ground of the courtyard; a fixed feces suction pipe 8 installed between the septic tank 3 and the alley of the courtyard; the front end of the fixed feces suction pipe 8 is installed in the septic tank 3, and the rear end of the fixed feces suction pipe 8 is arranged at a corresponding position of the alley that can be reached by a feces truck; when the on-board feces suction pipe 29 of the feces truck entering the alley is sealed and connected with the rear end of the fixed feces suction pipe 8, the feces in the septic tank 3 is sucked by the on-board pump.

[0039] The present invention uses the septic tank 3 in the courtyard as a container, and uses a fixed fecal suction pipe 8 extending from the septic tank 3 to the outside of the courtyard as a suction pipe of the container, so that a fecal truck can dock with the fixed fecal suction pipe 8 in the alley to suck the feces in the septic tank 3 of the courtyard into the fecal truck, thereby solving the problem that the fecal truck cannot enter the courtyard to suck the feces.

[0040] See also Figure 1a-Figure 3fThe septic tank 3 includes a tank body located underground, and the tank body includes: a bottom slope 14 inclined from the side of the feces inlet 6 (i.e., the side connected to the sewage pipe 13) to the side of the feces outlet 7, so that feces can slide down to the bottom of the side of the feces outlet 7; a feces suction pit 12 located on the side of the feces outlet 7 and sunken downward from the bottom of the septic tank 3; the front end of the fixed feces suction pipe 8 is close to the feces suction pit 12 and is located above the feces suction pit 12. The main function of the feces suction pit 12 is to collect feces at the bottom of the tank body so that when the feces truck sucks the feces, all the feces in the tank body can be removed.

[0041] See also Figure 1a-Figure 3f The feces removal device for the courtyard septic tank of the present invention also includes: a pipe well 21 covering the rear end of the fixed feces suction pipe 8, which is used to fix the rear end of the fixed feces suction pipe 8 to the corresponding position of the alley that can be reached by the feces truck; a clamping seat 15 located in the pipe well 21 and installed at the end of the fixed feces suction pipe 8, which is used to clamp the clamping head 15 of the vehicle-mounted feces suction pipe 29; a cylinder cover 22 installed on the pipe well 21, which is used to open or close the pipe well 21. In order to prevent others from opening the cylinder cover 22, an electronic lock can be set on the cylinder cover 22, and the password of the electronic lock can be set by the cleaning worker or uniformly set through networking.

[0042] See also Figure 1a-Figure 2f The septic tank 3 of the present invention further comprises: a partition 10 for dividing the septic tank 3 into three or two tanks, Figure 1b Two partitions 10 are shown, Figure 2b A partition 10 is shown; a slide gate 28 is arranged at the bottom of the partition 10, which is used to open the gate device during the period when the feces in the septic tank are sucked by the feces truck, so that the feces in the septic tank 3 slides to the bottom of the feces outlet 7 side through the suction of the fixed feces suction pipe 8 until all the feces are sucked into the feces truck.

[0043] See also Figure 4a-4c The gate 28 includes a gate seat 16 disposed at the through hole 9 at the bottom of the partition 10; a gate 17 installed in the gate seat 16; and a handle 18 installed on the gate 17. The gate seat 16 is provided with a bow spring 20 for applying elastic force to the gate 17.

[0044] See also Figure 1a-Figure 3f The septic tank 3 of the present invention also includes: a wellbore 23 on the tank body; a double-layer sealed manhole cover 24 for the wellbore 23; a through hole 25 arranged on the sealed manhole cover 24 for inserting the handle 11 for connecting the handle rod 18; and a round hole plug 26 used in conjunction with the through hole on the sealed manhole cover 24 for blocking the through hole in normal times.

[0045] The present invention also includes setting a sewage pipe 7 between the septic tank 3 and the drainage inspection well 5 located in the alley, and the sewage pipe 7 is arranged side by side with the fixed fecal suction pipe 8 to meet the needs of compact arrangement of pipes under the narrow corridor in the courtyard.

[0046] The following is combined with Figure 1a-Figure 6b The present invention is further described.

[0047] Figure 1a-1f A first embodiment of a feces removal device for a courtyard septic tank is shown, which utilizes two partitions 10 to separate the septic tank 3; Figure 2a-2f A second embodiment of the feces removal device for a courtyard septic tank is shown, which utilizes a partition 10 to separate the septic tank 3; Figure 3a-3f A third embodiment of a feces removal device for a courtyard septic tank without a separated septic tank 3 is shown.

[0048] like Figure 1a-Figure 3f As shown, the fixed fecal suction pipe 8 is a hard plastic pipe, and the front end of the pipe is extended into the bottom of the septic tank in an L shape beside the sewage pipe 13 of the septic tank 3, and is located on the fecal suction pit 12; after the pipe leaves the septic tank 3, it is laid beside the sewage pipe 13, turns in front of the drainage inspection well 5 of the external road, and turns to the bottom of the suction pipe well 21 near the drainage inspection well 5, so that the rear end of the pipe extends upward from the bottom of the suction pipe well 21 to the bottom of the tube cover 22, and a clamping seat 15 is installed at its end; at the same time, a clamping head 27 is installed at the end of the fecal suction pipe 29 on the fecal truck. When the clamping head 27 of the fecal suction pipe 29 on the fecal truck is inserted into the clamping seat 15 and tightened, the fixed fecal suction pipe 8 is connected with the vehicle-mounted fecal suction pipe 29 in a sealed manner to ensure smooth vacuum suction of the fecal truck. In order to facilitate the flushing of the equipment after suction, plain concrete is filled between the inner wall of the suction pipe well 21 and the outer skin of the fixed fecal suction pipe 8 to ensure that the flushing water will flow into the fixed fecal suction pipe 8 along the slope. A flap gate 32 is installed at the outlet of the sewage pipe 13 of the septic tank 3 into the alley drainage inspection well 5 to prevent the external drainage from backflowing into the septic tank 3.

[0049] The bottom of the septic tank 3 has a bottom slope 14 of 10%, and tiles or a slip-increasing coating are laid on the bottom slope 14. When the fixed feces suction pipe 8 is sucked, the feces water passes through the bottom through hole 9 of the partition 10 to reach the feces suction pit 12, ensuring that all the feces water is sucked away at the feces water outlet 7 side of the septic tank 3 at one time.

[0050] like Figure 4a-Figure 6bAs shown, the gate 28 is composed of a gate seat 16, a gate 17, a handle rod 18, a through hole 25 on the double-layer sealed manhole cover 24, a round hole plug 26, and a handle 11. The gate seat 16 is a cube, with a square opening in the middle of the front side, which is the same size as the through hole 9 at the bottom, and a slot for the gate 17 in the middle of the top. The slot is longer than the square opening, and the slot width is twice the width of the gate 17. The gap can be used to place a bow spring 20 to cover the gate 17 against the square opening of the gate seat 16 to prevent the feces and water on both sides of the partition 10 from mixing. A lifting rod 18 is installed on the top of the plug plate 17, and a through hole 25 is provided on the double-layer sealed manhole cover 24, and the lifting rod 18 is located directly below the through hole 25; the rod head of the lifting rod 18 has an external thread, and a lifting handle 11 is provided on the corresponding rod head, and the rod head of the lifting handle 11 has an internal thread, and the lifting handle 11 can pass through the through hole 25 and be tightened on the lifting rod 18, so as to lift the plug plate 17 so as to open the bottom through hole 9 when the septic tank 3 is pumped; there is an external thread on the top of the through hole 25, and normally, the round hole plug 26 can be tightened to plug the through hole 25.

[0051] The working process of excrement removal of the courtyard septic tank of the present invention is as follows:

[0052] Before pumping the septic tank 3, unscrew the round hole plug 26 on the double-layer sealed manhole cover 24 of the 3-tank or 2-tank septic tank 3 in advance, extend the handle 11 under the through hole 25, screw the handle rod 18, and then lift the handle rod 18 together with the plug plate 17 so that the rod head of the handle rod 18 is located in the middle position of the through hole 25, and this position just makes the plug plate 17 not cover the bottom through hole 9, then unscrew the handle 11, and screw the round hole plug 26 onto the through hole 25 of the double-layer sealed manhole cover 24; this operation is not required for the septic tank without grid. Afterwards, the manure truck stops near the suction pipe shaft 21 in the alley, opens the shaft cover 22, inserts the clamp 27 at one end of the vehicle-mounted manure suction pipe 29 into the clamp seat 15 and tightens it, and then starts to suck manure; during suction, under the action of vacuum, the manure water near the manure suction pit 12 of the septic tank 3 is sucked into the manure truck through the fixed manure suction pipe 8, and the manure water in the distance slides down the bottom slope 14 and reaches the manure suction pit 12 directly or through the opened bottom through hole 9, and is continuously sucked until all the manure water in the septic tank 3 is sucked out; after suction, it is necessary to rinse the buckle base 15 and the inside of the fixed manure suction pipe 8 with water, and then cover the shaft cover 22; thereafter, the plug plate 17 of the plug gate 28 of the septic tank 3 is reset to screw the round hole plug 26 on the double-layer sealed well cover 24, and this operation does not need to be performed for the septic tank 3 without the partition 10. Since the double-layer sealed manhole cover 24 of the septic tank 3 does not need to be opened, no odor will leak out during the continuous suction process, which can avoid the generation of a foul-smelling environment to the greatest extent.

[0053] Although the present invention has been described in detail above, the present invention is not limited thereto. Those skilled in the art can make modifications based on the principles of the present invention. Therefore, all modifications made based on the principles of the present invention should be understood to fall within the protection scope of the present invention.

Claims

1. A method for removing feces from a courtyard septic tank, characterized in that: The following steps are involved: Construction of general septic tanks beneath the ground level of the courtyard houses; A fixed sewage suction pipe is installed between the septic tank and the alley of the quadrangle; The front end of the fixed feces suction pipe is installed in the septic tank, and the rear end of the fixed feces suction pipe is arranged at a corresponding position in the alley that can be reached by a feces truck; After the manure truck enters the alley, the vehicle-mounted manure suction pipe is sealed and connected to the rear end of the fixed manure suction pipe, and the manure in the septic tank is sucked out by the vehicle-mounted pump; The septic tank comprises a tank body located underground, and the tank body comprises: A bottom slope that slopes from the manure inlet side to the manure outlet side to facilitate the sliding of manure to the bottom of the manure outlet side; A manure suction pit located on the manure outlet side and sunken downward from the bottom of the septic tank; The front end of the fixed feces suction pipe is close to the feces suction pit and is located above the feces suction pit, so as to completely remove the feces in the pool body; The rear end of the fixed feces suction pipe is installed in the suction pipe well, and the suction pipe well is used to fix the rear end of the fixed feces suction pipe to the corresponding position of the alley that the feces truck can reach; The suction pipe shaft includes: a clamping seat located in the suction pipe shaft and installed on the end of the fixed feces suction pipe, which is used to clamp the clamping head of the feces suction pipe on the feces truck; and a tube cover installed on the suction pipe shaft, which is used to open or close the suction pipe shaft.

2. The method for removing feces from a courtyard septic tank according to claim 1, characterized in that: The cylinder cover is provided with a mechanical lock or an electronic lock for opening the cylinder cover.

3. The method for removing feces from a courtyard septic tank according to claim 1 or 2, characterized in that: The septic tank also includes: Partitions used to divide a septic tank into three or two tanks; The slide gate arranged at the bottom of the partition is used to open the gate device while the feces in the septic tank is being sucked by the feces truck, so that the feces in the septic tank slides to the bottom of the feces outlet side through suction of the fixed feces suction pipe until all the feces are sucked into the feces truck.

4. The method for removing feces from a courtyard septic tank according to claim 3, characterized in that: The slide gate comprises: A gate seat provided at the through hole at the bottom of the partition; A gate installed in the gate seat; and A handle bar mounted on the plug board.

5. The method for removing feces from a courtyard septic tank according to claim 4, characterized in that: The gate seat is provided with a bow spring for applying elastic force to the gate.

6. The method for removing feces from a courtyard septic tank according to claim 4, characterized in that: The septic tank also includes: The shaft on the septic tank; A double-layer sealing manhole cover for the septic tank shaft; A through hole provided on the sealing manhole cover is used for inserting a handle for connecting a handle rod when sucking feces; and The round hole plug used in conjunction with the through hole on the sealing manhole cover is used to block the through hole when feces is not being sucked out.

7. The method for removing feces from a courtyard septic tank according to claim 4, characterized in that: A sewage pipe is set between the septic tank and the drainage inspection well located in the alley. The sewage pipe is arranged side by side with the fixed fecal suction pipe to meet the needs of compact arrangement of pipes under the narrow corridors in the courtyard.

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