Rural sewage treatment device

Abstract

The utility model discloses a rural sewage treatment device, and relates to the technical field of sewage treatment, before the sewage treatment device is stored and transferred, a transmission mechanism and a driving mechanism are disconnected, and the transmission mechanism is plugged into a cavity on the inner side of a first pool body from a mounting hole; then the first mounting plate is rotated, so that the driving mechanism is rotated to the inner side of the first tank body; the bolts for connecting the second tank body and the partition plate are detached; the second pool body is slid to sleeve the outer side of the first pool body, at the moment, the waterproof cloth is folded and stored between the side wall of the first pool body and the side wall of the second pool body, the partition plate slides to abut against the side wall of the second pool body, the first pool body is stored in the second pool body, and the third pool body is integrally compressed, so that the waterproof cloth is folded and stored in the second pool body; the volume of the sewage treatment device is changed from the sum of the first tank body, the second tank body and the third tank body to the volume of the second tank body, and the sewage treatment device is simple to store and convenient to transfer.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, especially rural sewage treatment device. BACKGROUND

[0002] Sewage treatment is the process that carries out purification to sewage to make it reach the water quality requirement of being discharged into a certain water body or reused. The sewage treatment equipment usually includes a sewage pool, and the sewage pool is usually constructed by digging a pit or purchased as a complete pool body. The utility model patent with publication number CN211170354U discloses an assembled aerobic and anaerobic immobilized microbial sewage treatment device, which comprises a bottom tank, a middle tank and a top tank. The bottom tank and the middle tank are detachably connected, and the middle tank and the top tank are detachably connected. Although the sewage treatment device in the prior art can be disassembled into three tank bodies for carrying and transferring, each tank body still occupies a certain space, and the volume of the sewage treatment device does not change, which is inconvenient to store and transfer. SUMMARY

[0003] The main purpose of the utility model is to provide a rural sewage treatment device, which aims to solve the technical problem that the volume of the sewage treatment device in the prior art cannot be adjusted and is inconvenient to store.

[0004] To achieve the above-mentioned purpose, the utility model provides a rural sewage treatment device, which comprises:

[0005] The pool body assembly comprises a first pool body, a second pool body, a waterproof cloth, a partition plate and a first mounting plate. The second pool body has a receiving opening. The partition plate is slidably arranged in the second pool body and is used for sealing the receiving opening. The waterproof cloth has a ring-shaped cross section. One end of the waterproof cloth is connected to the first pool body, and the other end of the waterproof cloth is connected to the second pool body. The first pool body can be sleeved into the second pool body from the receiving opening, and the gap between the first pool body and the second pool body can accommodate the waterproof cloth. The first pool body is provided with a first mounting hole, and the first mounting plate is located in the first mounting hole and is rotatably connected to the first pool body. The second pool body is provided with a first connecting hole. The partition plate is provided with a threaded hole. A bolt passes through the first connecting hole and is threadedly connected to the partition plate. The space surrounded by the side wall of the first pool body, the waterproof cloth and the partition plate is a third pool body.

[0006] The slag removal assembly comprises a slag collecting mechanism, a transmission mechanism and a driving mechanism. The slag collecting mechanism is arranged inside the first pool body and is used for collecting slag. The transmission mechanism is used for transmitting the power of the driving mechanism to the slag collecting mechanism. The transmission mechanism and the driving mechanism are detachably connected. The first pool body is provided with a mounting hole through which the transmission mechanism passes. The driving mechanism is arranged on the first mounting plate. When the first mounting plate rotates around the first pool body, the driving mechanism can be rotated into the inside cavity of the first pool body.

[0007] Further, the first pool body and the second pool body are both cuboid structures; the pool body assembly further comprises four groups of support mechanisms arranged circumferentially outside the waterproof cloth; the support mechanism comprises a support plate and two connecting pieces; in each group of the support mechanism, the two connecting pieces are respectively used for connecting the first pool body and the second pool body, and the two ends of the support plate are respectively rotationally connected with one of the connecting pieces.

[0008] Further, an inclined plate is arranged in the first pool body, and a cavity between the inner side wall of the first pool body and the inclined plate forms a containing groove.

[0009] Further, the slag collecting mechanism comprises a first roller body, a second roller body, a conveying belt and a plurality of collection claws; the first pool body is provided with a slag removal opening; the first roller body and the second roller body are both rotationally connected with the first pool body, the first roller body is close to the slag removal opening, and the second roller body is close to the groove bottom of the containing groove; the conveying belt is sleeved outside the first roller body and the second roller body and is transmissionally connected with the first roller body and the second roller body; the plurality of collection claws are fixed on the conveying belt, and the conveying belt can move the dregs in the containing groove from the second roller body to the first roller body through the collection claws.

[0010] Further, the driving mechanism comprises a driving motor and a first wheel; the transmission mechanism comprises a second wheel, a third wheel, a first transmission piece and a second transmission piece; the pool body assembly further comprises a second mounting plate;

[0011] The first pool body is provided with a second mounting hole; the second mounting plate is located in the second mounting hole and is rotationally connected with the first pool body; the second mounting plate is provided with a third mounting hole for the second transmission piece to pass through; the slag removal assembly further comprises a locking mechanism for fixing the first mounting plate and the second mounting plate;

[0012] The driving motor is arranged on the first mounting plate and is used for driving the first wheel to rotate; the second wheel is rotationally connected with the second mounting plate, and the third wheel is arranged on the second wheel; the first transmission piece is used for transmitting power of the first wheel to the second wheel; and the second transmission piece is used for transmitting power of the third wheel to the first roller body.

[0013] Further, the locking mechanism comprises a locking bolt; the first mounting plate and the second mounting plate are both provided with threaded holes, and the first pool body is provided with a second connecting hole matched with the locking bolt.

[0014] Further, the first pool body is provided with a first liquid inlet; the second pool body is provided with a first liquid outlet; and the end face of the first pool body opposite to the containing opening and the partition plate are both provided with a conveying pipe.

[0015] Furthermore, the pool assembly also includes a fourth pool, a fifth pool, a first connecting pipe, and a second connecting pipe; the fourth pool is provided with a second inlet and a second outlet; the fifth pool is provided with a third inlet and a third outlet; the two ends of the first connecting pipe are respectively connected to the first outlet and the second inlet; the two ends of the second connecting pipe are respectively connected to the second outlet and the third inlet.

[0016] Furthermore, the fifth pool body is provided with a placement opening; the fourth pool body can be inserted into the fifth pool body through the placement opening.

[0017] Before storage and transfer, the rural sewage treatment device proposed in this utility model involves disconnecting the transmission mechanism from the drive mechanism and inserting the transmission mechanism into the inner cavity of the first tank through the mounting hole. Then, the first mounting plate is rotated, causing the drive mechanism to rotate to the inner side of the first tank. Next, the bolts connecting the second tank and the partition are removed. The second tank is slid so that it fits over the outside of the first tank. At this point, the waterproof cloth is folded and stored between the side walls of the first and second tanks, and the partition slides to abut against the side wall of the second tank. This allows the first tank to be stored within the second tank, compressing the entire third tank. Thus, the volume of the sewage treatment device is reduced from the sum of the first, second, and third tanks to the volume of the second tank, making storage simple and transfer convenient. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the first and second pools after they are housed in an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the unfolded structure of the first and second pool bodies according to an embodiment of the present invention;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a schematic diagram of the structure of the fourth and fifth pools after they are stored in this embodiment of the present invention;

[0023] Figure 5The structure schematic diagram of the fourth pool body and the fifth pool body unfolded according to the embodiment of the utility model.

[0024] Icon: 110, first pool body;1101, first liquid inlet;1102, slag removal port;120, second pool body;1201, first liquid outlet;130, waterproof cloth;140, partition;150, first mounting plate;160, conveying pipe;170, connecting piece;180, support plate;190, inclined plate;1110, second mounting plate;1120, fourth pool body;1121, second liquid inlet;1122, second liquid outlet;1130, fifth pool body;1131, third liquid inlet;1132, third liquid outlet;1140, first connecting pipe;1150, second connecting pipe;210, first roller body;220, second roller body;230, conveying belt;240, collection claw;250, driving motor;260, first wheel;270, second wheel;280, third wheel;290, first transmission part;2110, second transmission part;2120, locking bolt. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.

[0027] In the utility model, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously meet the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0029] A rural sewage treatment device, comprising: a pool body assembly, comprising a first pool body 110, a second pool body 120, a waterproof cloth 130, a partition plate 140 and a first mounting plate 150; the second pool body 120 has a containing opening; the partition plate 140 is slidably arranged in the second pool body 120 and is used for sealing the containing opening; the waterproof cloth 130 is annular in cross section, one end of the waterproof cloth 130 is connected with the first pool body 110, and the other end of the waterproof cloth 130 is connected with the second pool body 120; the first pool body 110 can be sleeved into the second pool body 120 from the containing opening, and a gap between the first pool body 110 and the second pool body 120 can accommodate the waterproof cloth 130; the first pool body 110 is provided with a first mounting hole, and the first mounting plate 150 is located in the first mounting hole and is rotationally connected with the first pool body 110; wherein the second pool body 120 is provided with a first connecting hole; the partition plate 140 is provided with a threaded hole; a bolt passes through the first connecting hole and is threadedly connected with the partition plate 140; a space surrounded by the side wall of the first pool body 110, the waterproof cloth 130 and the partition plate 140 is a third pool body.

[0030] The slag removal assembly comprises a slag collecting mechanism, a transmission mechanism and a driving mechanism; the slag collecting mechanism is arranged inside the first pool body 110 and is used for collecting slag; the transmission mechanism is used for transmitting power of the driving mechanism to the slag collecting mechanism; the transmission mechanism is detachably connected with the driving mechanism; the first pool body 110 is provided with a mounting hole for the transmission mechanism to pass through; the driving mechanism is arranged on the first mounting plate 150, and when the first mounting plate 150 rotates around the first pool body 110, the driving mechanism can be rotated into the inside cavity of the first pool body 110.

[0031] Before storage, the connection between the transmission mechanism and the driving mechanism is disassembled, and the transmission mechanism is inserted into the cavity inside the first pool body 110 from the installation hole; then the first mounting plate 150 is rotated so that the driving mechanism is turned to the inside of the first pool body 110; then the bolt connecting the second pool body 120 and the partition plate 140 is disassembled; the second pool body 120 is slid so that the second pool body 120 is sleeved outside the first pool body 110, at this time the tarpaulin 130 is folded and stored between the side wall of the first pool body 110 and the side wall of the second pool body 120, and the partition plate 140 is shifted to abut against the side wall of the second pool body 120, thereby storing the first pool body 110 in the second pool body 120, and the third pool body is compressed as a whole, thus the volume of the sewage treatment device is changed from the sum of the first pool body 110, the second pool body 120 and the third pool body to the volume of the second pool body 120, and the storage is simple and convenient for transfer.

[0032] When the sewage device is in use, the first pool body 110 is pulled out of the second pool body 120, and the partition plate 140 is shifted to a position close to the second pool body 120, and then a bolt is used to pass through the second pool body 120 and the partition plate 140 to fix the partition plate 140 on the second pool body 120, at this time the space surrounded by the side wall of the first pool body 110, the tarpaulin 130 and the partition plate 140 is the third pool body.

[0033] The tarpaulin 130 can be made of geomembrane.

[0034] In one embodiment, the first pool body 110 is provided with a first liquid inlet 1101; the second pool body 120 is provided with a first liquid outlet 1201; the end face of the first pool body 110 opposite to the containing opening and the partition plate 140 are both provided with a conveying pipe 160.

[0035] The first pool body 110, the second pool body 120 and the third pool body are mainly used as septic tanks. The conveying pipe 160 can be located at a higher position on the first pool body 110 and the partition plate 140 but not higher than the height of the first liquid inlet 1101. The conveying pipe 160 can be arranged at an angle, for example, an angle of 60 degrees, with the bottom of the first pool body 110.

[0036] The toilet sewage can enter the inside cavity of the first pool body 110 from the first liquid inlet 1101. In the first pool body 110, the solid particles, suspended matters and large impurities in the sewage can naturally deposit to the bottom through the physical sedimentation process to form the sediment, which effectively removes most of the solid matters in the sewage. After the sedimentation of the sewage in the first pool body 110, the supernatant is formed above the first pool body 110, and the supernatant enters the third pool body through the delivery pipe 160. Since the third pool body is enclosed by the side wall of the first pool body 110, the waterproof cloth 130 and the partition plate 140, the sewage can further undergo anaerobic fermentation in the third pool body to decompose the organic matters and produce by-products such as biogas. After the treatment of the sewage in the first pool body 110 and the third pool body, the suspended matters and organic matters in the sewage are further removed in the second pool body 120, the clarity of the sewage is improved, and the sewage reaches the harmless discharge standard. Finally, the sewage can be discharged from the first liquid outlet 1201.

[0037] In one of the embodiments, the first pool body 110 and the second pool body 120 are both cuboid structures; the pool body assembly further comprises four sets of support mechanisms arranged circumferentially outside the waterproof cloth 130; the support mechanism comprises a support plate 180 and two connecting pieces 170; in each set of support mechanisms, the two connecting pieces 170 are respectively used to connect the first pool body 110 and the second pool body 120, and the two ends of the support plate 180 are respectively rotationally connected with one connecting piece 170.

[0038] The first pool body 110 and the second pool body 120 can be placed in a pit; the support mechanism is used to support the waterproof cloth 130 to prevent the deformation and rupture of the waterproof cloth 130 caused by the long-time extrusion of the sewage in the third pool body, and to prevent the rock particles in the pit from scratching the waterproof cloth 130.

[0039] The connecting piece 170 can be provided with a through hole, and the first pool body 110 and the second pool body 120 are provided with threaded holes. The bolt passes through the connecting piece 170 and is connected with the first pool body 110 or the second pool body 120, so as to fix the connecting piece 170 on the first pool body 110 or the second pool body 120. The heights of the first pool body 110 and the second pool body 120 are different. To avoid the phenomenon that the connecting structure of the support plate 180 and the connecting piece 170 is stuck after the connecting piece 170 is connected with the first pool body 110 or the second pool body 120, the connecting structure of the support plate 180 and the connecting piece 170 is set as a rotationally connected structure.

[0040] In one of the embodiments, the first pool body 110 is provided with an inclined plate 190, and a cavity between the inner side wall of the first pool body 110 and the inclined plate 190 forms a collection groove. The inclined plate 190 can be arranged opposite to the first liquid inlet 1101. When the sewage enters the first pool body 110 from the first liquid inlet 1101, the sewage impacts the inclined plate 190, and the dregs in the sewage slide along the inclined plate 190 to the collection groove, so as to gather the dregs.

[0041] In one of the embodiments, the dregs collecting mechanism includes a first roller body 210, a second roller body 220, a conveying belt 230, and a plurality of collecting claws 240; the first pool body 110 is provided with a dregs outlet 1102; the first roller body 210 and the second roller body 220 are rotationally connected with the first pool body 110, the first roller body 210 is close to the dregs outlet 1102, and the second roller body 220 is close to the bottom of the collection groove; the conveying belt 230 is sleeved outside the first roller body 210 and the second roller body 220 and is transmissionally connected with the first roller body 210 and the second roller body 220; the plurality of collecting claws 240 are fixed on the conveying belt 230, and the conveying belt 230 can move the dregs in the collection groove from the second roller body 220 to the first roller body 210 through the collecting claws 240.

[0042] The cross section of the collecting claw 240 can be hook-shaped, and the end of the collecting claw 240 faces the inclined plate 190. The driving mechanism drives the first roller body 210 to rotate, and the first roller body 210 drives the collecting claw 240 to move from the bottom of the collection groove to the upper end of the first pool body 110 through the conveying belt 230, and the operator can put a collecting tool into the dregs outlet 1102 to pick up the dregs on the collecting claw 240.

[0043] The first roller body 210 can be higher than the first liquid inlet 1101, so as to avoid the driving mechanism from being immersed in the sewage.

[0044] In one of the embodiments, the driving mechanism includes a driving motor 250 and a first wheel 260; the transmission mechanism includes a second wheel 270, a third wheel 280, a first transmission member 290, and a second transmission member 2110; the pool body assembly further includes a second mounting plate 1110;

[0045] The first pool body 110 is provided with a second mounting hole; the second mounting plate 1110 is located in the second mounting hole and is rotationally connected with the first pool body 110; the second mounting plate 1110 is provided with a third mounting hole for the second transmission member 2110 to pass through; the dregs collecting assembly further includes a locking mechanism for fixing the first mounting plate 150 and the second mounting plate 1110;

[0046] The driving motor 250 is arranged on the first mounting plate 150 and used to drive the first wheel 260 to rotate; the second wheel 270 is rotatably connected with the second mounting plate 1110, and the third wheel 280 is arranged on the second wheel 270; the first transmission member 290 is used to transmit power of the first wheel 260 to the second wheel 270; and the second transmission member 2110 is used to transmit power of the third wheel 280 to the first roller body 210.

[0047] The first transmission member 290 and the second transmission member 2110 can both be belts, and the first wheel 260, the second wheel 270 and the third wheel 280 can all be pulleys.

[0048] Before the first pool body 110 is filled with sewage, the first mounting plate 150 and the second mounting plate 1110 are rotated so that the driving motor 250, the first wheel 260, the second wheel 270 and the third wheel 280 are all located outside the first pool body 110; then the first transmission member 290 is sleeved on the first wheel 260 and the second wheel 270, and the second transmission member 2110 is sleeved on the third wheel 280 and the first roller body 210; thus power of the driving motor 250 is transmitted to the first roller body 210.

[0049] In one of the embodiments, the locking mechanism comprises a locking bolt 2120; the first mounting plate 150 and the second mounting plate 1110 are both provided with threaded holes, and the first pool body 110 is provided with a second connecting hole matched with the locking bolt 2120.

[0050] The first mounting hole and the second mounting hole can be located on two sides of the slagging port 1102, and the second connecting hole intersects the slagging port 1102 perpendicularly. When the locking bolt 2120 is installed, the locking bolt 2120 is inserted into the second connecting hole from the slagging port 1102 and then connected with the first mounting plate 150 or the second mounting plate 1110, so as to prevent the driving mechanism and the transmission mechanism from rotating relative to the first pool body 110 during operation.

[0051] In one of the embodiments, the pool body assembly further comprises a fourth pool body 1120, a fifth pool body 1130, a first connecting pipe 1140 and a second connecting pipe 1150; the fourth pool body 1120 is provided with a second liquid inlet 1121 and a second liquid outlet 1122; the fifth pool body 1130 is provided with a third liquid inlet 1131 and a third liquid outlet 1132; the first connecting pipe 1140 is in communication with the first liquid outlet 1201 and the second liquid inlet 1121 at two ends respectively; and the second connecting pipe 1150 is in communication with the second liquid outlet 1122 and the third liquid inlet 1131 at two ends respectively.

[0052] The fourth pool body 1120 can be an anaerobic pool, and the fifth pool body 1130 can be a water storage pool. An opening and a cover plate for sealing the opening can be arranged above the fourth pool body 1120 and the fifth pool body 1130. The fourth pool body 1120 can be filled with grey water from the opening. The fourth pool body 1120 can effectively degrade organic matter in low-concentration grey water and effluent from the second pool body 120 through metabolic activity of anaerobic microorganisms, and remove suspended solids and denitrify and dephosphorize to a certain extent, thereby achieving further removal of pollutants.

[0053] The fifth pool body 1130 can effectively store tail water treated by the fourth pool body 1120, thereby ensuring stable supply of water resources and facilitating discharge of the tail water from the third discharge port 1132 when needed to irrigate farmland, achieving sustainable development of agricultural production, and effectively improving management efficiency of water resources and convenience of farmland irrigation.

[0054] In another embodiment, the fourth pool body 1120 can be a closed cuboid structure, and the fourth pool body 1120 can be provided with a through hole for filling grey water and a valve for sealing the through hole.

[0055] In one of the embodiments, the fifth pool body 1130 is provided with a placing opening, and the fourth pool body 1120 can be sleeved into the fifth pool body 1130 from the placing opening, so that the total volume of the fourth pool body 1120 and the fifth pool body 1130 is convenient for storage and transportation.

[0056] The above description is only optional embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the drawings, or direct / indirect application in other related technical fields under the utility model concept of the utility model is included in the patent protection range of the utility model.

Claims

1. A rural sewage treatment device, characterised in that, The application relates to a pool body assembly and a slag collecting assembly. The pool body assembly comprises a first pool body, a second pool body, a waterproof cloth, a partition plate and a first mounting plate; the second pool body is provided with a containing opening; the partition plate is slidably arranged in the second pool body and used for sealing the containing opening; the waterproof cloth has a ring-shaped cross section, one end of the waterproof cloth is connected with the first pool body, and the other end of the waterproof cloth is connected with the second pool body; the first pool body can be sleeved into the second pool body from the containing opening, and a gap between the first pool body and the second pool body can accommodate the waterproof cloth; the first pool body is provided with a first mounting hole, the first mounting plate is located in the first mounting hole and rotationally connected with the first pool body; the second pool body is provided with a first connecting hole; the partition plate is provided with a threaded hole; a bolt passes through the first connecting hole and is threadedly connected with the partition plate; and a space surrounded by the side wall of the first pool body, the waterproof cloth and the partition plate is a third pool body. The slag collecting assembly comprises a slag collecting mechanism, a transmission mechanism and a driving mechanism; the slag collecting mechanism is arranged in the first pool body and used for collecting slag; the transmission mechanism is used for transmitting power of the driving mechanism to the slag collecting mechanism; the transmission mechanism is detachably connected with the driving mechanism; the first pool body is provided with a mounting hole for the transmission mechanism to pass through; and the driving mechanism is arranged on the first mounting plate, and the first mounting plate can drive the driving mechanism to rotate into the inside cavity of the first pool body when the first mounting plate rotates around the first pool body.

2. The rural sewage treatment device according to claim 1, characterized in that, The first pool body and the second pool body are both cuboids; the pool body assembly further comprises four groups of support mechanisms arranged on the outer side of the waterproof cloth in the circumferential direction; the support mechanism comprises a support plate and two connecting pieces; in each group of the support mechanisms, the two connecting pieces are respectively used for connecting the first pool body and the second pool body, and the two ends of the support plate are respectively rotationally connected with one connecting piece.

3. The rural sewage treatment device according to claim 1, characterized in that, An inclined plate is arranged in the first pool body, and a cavity between the inner side wall of the first pool body and the inclined plate forms a receiving groove.

4. The rural sewage treatment device according to claim 3, characterized in that, The slag collecting mechanism comprises a first roller body, a second roller body, a conveying belt and a plurality of collecting claws; the first pool body is provided with a slag removing opening; the first roller body and the second roller body are both rotationally connected with the first pool body, the first roller body is close to the slag removing opening, and the second roller body is close to the groove bottom of the receiving groove; the conveying belt is sleeved outside the first roller body and the second roller body and is transmissionally connected with the first roller body and the second roller body; the plurality of collecting claws are fixed on the conveying belt, and the conveying belt can move the slag in the receiving groove from the second roller body to the first roller body through the collecting claws.

5. The rural sewage treatment device according to claim 4, characterized in that The driving mechanism comprises a driving motor and a first wheel; the transmission mechanism comprises a second wheel, a third wheel, a first transmission piece and a second transmission piece; the pool body assembly further comprises a second mounting plate; The first pool body is provided with a second mounting hole; the second mounting plate is located in the second mounting hole and rotationally connected with the first pool body; the second mounting plate is provided with a third mounting hole for the second transmission piece to pass through; the slag collecting assembly further comprises a locking mechanism used for fixing the first mounting plate and the second mounting plate; and the locking mechanism comprises a locking plate and a plurality of locking pieces. The driving motor is arranged on the first mounting plate and used to drive the first wheel to rotate; the second wheel is rotationally connected with the second mounting plate, and the third wheel is arranged on the second wheel; the first transmission member is used to transmit power of the first wheel to the second wheel; and the second transmission member is used to transmit power of the third wheel to the first roller body.

6. The rural sewage treatment device according to claim 5, characterized in that The locking mechanism comprises a locking bolt; the first mounting plate and the second mounting plate are both provided with threaded holes, and the first pool body is provided with a second connecting hole matched with the locking bolt.

7. The rural sewage treatment device as claimed in claim 1, wherein The first pool body is provided with a first liquid inlet; the second pool body is provided with a first liquid outlet; and the end face of the first pool body opposite to the accommodating opening and the partition plate are both provided with a conveying pipe.

8. The rural sewage treatment device according to claim 7, characterized in that The pool body assembly further comprises a fourth pool body, a fifth pool body, a first connecting pipe and a second connecting pipe; the fourth pool body is provided with a second liquid inlet and a second liquid outlet; the fifth pool body is provided with a third liquid inlet and a third liquid outlet; the two ends of the first connecting pipe are respectively communicated with the first liquid outlet and the second liquid inlet; and the two ends of the second connecting pipe are respectively communicated with the second liquid outlet and the third liquid inlet.

9. The rural sewage treatment device as claimed in claim 8, characterized in that, The fifth pool body is provided with a placing opening; and the fourth pool body can be sleeved into the fifth pool body from the placing opening.

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