CN211394092U - A small wastewater treatment device that is easy to move - Google Patents

Abstract

The utility model provides a small wastewater treatment device that is easy to move, belonging to the technical field of wastewater treatment, comprising a vehicle body, a water inlet tank, a sedimentation tank, a filter assembly, a medicine delivery assembly and a sedimentation assembly. The water inlet tank is arranged on the vehicle body The rear end of the water inlet tank is provided with a water inlet pipe that communicates with the inside of the water inlet tank, the sedimentation tank is arranged on the side of the water inlet tank, and the bottom end side wall of the sedimentation tank is provided with a water inlet pipe that communicates with its interior. The water outlet pipe, the water inlet pipe and the water outlet pipe are both provided with valves, the filter assembly is arranged in the water inlet tank, the drug delivery assembly is arranged on the side of the sedimentation tank, and the sedimentation assembly is arranged on the side of the sedimentation tank. At the top, the utility model solves the problems that the existing wastewater treatment device is large in volume, inconvenient to move, and unable to adapt to the use of mobile stalls.

Description

A small wastewater treatment device that is easy to move

technical field

The utility model relates to the technical field of waste water treatment, in particular to a small waste water treatment device that is easy to move.

Background technique

Wastewater treatment is to use physical, chemical and biological methods to treat wastewater to purify wastewater and reduce pollution, so as to achieve wastewater recycling and reuse, make full use of water resources, and separate and recover insoluble wastewater through physical action in a suspended state. The wastewater treatment methods of pollutants can be divided into gravity separation method, centrifugal separation method and sieve retention method, etc., through chemical reaction and mass transfer to separate and remove dissolved and colloidal pollutants in wastewater or convert them into It is a wastewater treatment method for harmless substances. Through the metabolism of microorganisms, organic pollutants in the state of solution, colloid and fine suspension in the wastewater are converted into stable and harmless substances.

Mobile stalls usually generate a certain amount of wastewater when they are in use, and if they are directly discharged without treatment, the environment will be polluted. Existing wastewater treatment devices are bulky and inconvenient to move, so they cannot be used in mobile stalls.

Utility model content

The purpose of the present invention is to provide a small wastewater treatment device that is easy to move, so as to solve the technical problems raised in the background art.

The utility model provides a small waste water treatment device that is easy to move, comprising a vehicle body, a water inlet tank, a sedimentation tank, a filter assembly, a medicine delivery assembly and a sedimentation assembly, wherein the water inlet tank is arranged at the rear end of the vehicle body, The top of the water inlet tank is provided with a water inlet pipe that communicates with its interior, the sedimentation tank is arranged on the side of the water inlet tank, and the bottom end sidewall of the sedimentation tank is provided with an outlet that communicates with its interior. The water pipe, the water inlet pipe and the water outlet pipe are both provided with valves, a first water pump is arranged between the sedimentation tank and the water inlet tank, and the input end of the first water pump is provided with the water inlet The first pipeline communicated with the inside of the tank, the output end of the first water pump is provided with a second pipeline communicated with the interior of the sedimentation tank, the filter assembly is arranged in the water inlet tank, and the drug delivery assembly It is arranged on the side of the sedimentation tank, and the medicine delivery assembly communicates with the sedimentation tank, and the sedimentation assembly is arranged on the top of the sedimentation tank.

Further, the filter assembly includes a filter screen plate and two filter chutes, the two filter chutes are symmetrically arranged in the water inlet tank, and the filter screen plate is arranged on the two filter chutes. The two ends of the filter screen plate are slidingly matched with the two filter chutes, and the filter screen plate is provided with a number of filter holes.

Further, the medicine delivery assembly includes a mixing tank, a stirring and mixing piece, a second water pump, a third pipeline, a fourth pipeline and four supporting legs, and the mixing tank is mounted on the vehicle body through the four supporting legs. Above, the top of the mixing tank is provided with a material injection port that communicates with the inside thereof, the stirring and mixing element is arranged in the mixing tank, the second water pump is arranged on the side of the sedimentation tank, and the first The two ends of the three pipes are respectively communicated with the input end of the second water pump and the mixing tank, and the two ends of the fourth pipe are respectively communicated with the output end of the second water pump and the sedimentation tank.

Further, the stirring and mixing member includes a stirring shaft, a stirring motor and several stirring blades, the stirring shaft can be rotatably installed in the mixing tank, and the stirring motor is vertically arranged at the bottom end of the mixing tank. , and the output shaft of the stirring motor extends to be fixedly connected with the stirring shaft, a plurality of the stirring blades are arranged on the stirring shaft, and each of the stirring blades is provided with a plurality of through grooves.

Further, the sedimentation assembly includes a lifting box, a pulling part and two sliding columns, the two sliding columns are symmetrically arranged in the sedimentation box, and the lifting box is arranged at the inner bottom end of the sedimentation box, And the lifting box is slidingly matched with the two sliding columns, the inner bottom end of the lifting box is provided with a number of water filtering holes, the pulling part is arranged at the top of the sedimentation box, and the One end is fixedly connected to the lift box, the pulling part includes a fixing plate, a pulling motor, a driving pulley, a driven pulley, a belt, a rotating shaft, two fixing seats and two pulling parts, the fixing plate is installed on the At the top of the sedimentation tank, the two fixed seats are symmetrically arranged on the fixed plate, the rotating shaft can be rotatably installed on the two fixed seats, and one end of the rotating shaft extends to one of the fixed seats. Outside the fixing seat, the pulling motor is horizontally arranged on the fixing plate, the driving pulley is fixedly connected with the output shaft of the pulling motor, and the driven pulley and the rotating shaft extend to one of the One end outside the fixed seat is fixedly connected, the belt is sleeved on the outside of the driving pulley and the driven pulley, and the two pulling members are symmetrically arranged on the rotating shaft.

Further, each of the pulling members includes a vertical plate, a sliding wheel, a rope take-up wheel and a steel wire, the vertical plate is arranged at the top of the sedimentation box, and the sliding wheel can be rotatably installed on the vertical plate. On the side wall, the rope take-up wheel is fixedly connected to the rotating shaft, one end of the steel rope is fixedly connected to the rope take-up wheel, and the other end of the steel rope passes through the sliding wheel and is connected to the lifter The top of the box is fixedly attached.

Further, the rear end of the vehicle body is provided with a push rod, and the bottom of the vehicle body is provided with four self-locking universal wheels distributed in a rectangular shape.

Compared with the prior art, the beneficial effects of the present utility model are:

First, the utility model manually pushes the car body to the flow booth, opens the valve on the water inlet pipe, and then the waste water in the flow booth flows into the water inlet tank through the water inlet pipe, and the filter assembly in the water inlet tank filters the waste water, Then the first water pump works to extract the filtered wastewater in the water inlet tank and flows into the sedimentation tank through the first pipeline and the second pipeline, and then the drug delivery component mixes the liquid medicine and transports it to the sedimentation tank. The wastewater in the sedimentation tank and the liquid medicine The reaction will accelerate the precipitation of impurities in the wastewater, and then the precipitation component will work to lift the precipitated impurities in the sedimentation tank, which is convenient for manual cleaning of the precipitated impurities. The waste water is discharged to achieve the purpose of treating the waste water of the mobile stall. The movement of the whole device can be completed only by manually pushing the car body, which is convenient for the use of the mobile stall and has strong practicability.

Second, when the waste water from the mobile booth of the present utility model enters the water inlet tank, the waste water is filtered through a number of filter holes on the filter screen plate, and the larger impurities doped in the waste water are blocked by a number of filter holes. The filtered waste water falls below the filter screen plate, which is convenient for the first water pump to transport the filtered waste water into the sedimentation tank. At the same time, the two ends of the filter screen plate are slidingly matched with the two filter chutes, which is convenient for manual cleaning of the filter screen plate. Maintenance replacement.

Third, the utility model manually uses the feeding port to add precipitation agent and water into the mixing tank, and then stirs and mixes the precipitation agent and water in the mixing tank, and then the second water pump works to extract the mixing tank for stirring. The liquid medicine formed after mixing flows into the sedimentation tank through the third pipeline and the fourth pipeline, which facilitates the reaction between the wastewater in the sedimentation tank and the liquid medicine, and accelerates the precipitation of impurities in the wastewater.

Fourth, the utility model drives the stirring shaft fixedly connected to its output shaft to rotate through the operation of the stirring motor, the stirring shaft drives several stirring blades to rotate synchronously, and the several stirring blades rotate to stir and mix the precipitation agent and water in the mixing tank, so as to achieve In order to fully mix the precipitation agent and water.

Fifth, when the waste water in the sedimentation tank reacts with the liquid medicine for a certain period of time, the utility model drives the driving pulley that is fixedly connected to its output shaft to rotate by pulling the motor. Since the belt is sleeved on the outside of the driving pulley and the driven The pulley drives the driven pulley and the belt to rotate synchronously. The driven pulley drives the rotating shaft to rotate synchronously. The rotating shaft drives the rope take-up pulley to rotate synchronously. The wheel drives the lift box to move up on the two sliding columns, which is convenient for manual cleaning of the precipitated impurities.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the following descriptions The accompanying drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1 is the three-dimensional structure schematic diagram one of the present utility model;

Fig. 2 is the three-dimensional structure schematic diagram two of the utility model;

Fig. 3 is a partial sectional view one of the utility model;

Fig. 4 is the partial three-dimensional structure schematic diagram of the present utility model;

Fig. 5 is the partial sectional view two of the utility model;

FIG. 6 is a schematic three-dimensional structure diagram of the pulling member of the present invention.

Reference number:

Car body 1, hand push rod 11, self-locking universal wheel 12, water inlet tank 2, water inlet pipe 21, valve 22, sedimentation tank 3, water outlet pipe 31, filter assembly 4, filter screen plate 41, filter chute 42 , filter hole 43, medicine delivery assembly 5, mixing tank 51, stirring and mixing piece 52, stirring shaft 521, stirring motor 522, stirring blade 523, through groove 524, second water pump 53, third pipeline 54, fourth pipeline 55, Support leg 56, feeding port 57, sedimentation assembly 6, lift box 61, pulling part 62, fixing plate 621, pulling motor 622, driving pulley 623, driven pulley 624, belt 625, rotating shaft 626, fixing seat 627, pulling 628, vertical plate 6281, sliding pulley 6282, rope take-up pulley 6283, steel rope 6284, sliding column 63, water filter hole 64, first water pump 7, first pipe 71, second pipe 72.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments.

The components of the embodiments of the invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention.

Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

1-6, the utility model provides a small wastewater treatment device that is easy to move, including a vehicle body 1, a water inlet tank 2, a sedimentation tank 3, a filter assembly 4, a medicine delivery assembly 5 and a sedimentation assembly 6 , the water inlet box 2 is arranged at the rear end of the vehicle body 1, the top of the water inlet box 2 is provided with a water inlet pipe 21 that communicates with its interior, and the sedimentation box 3 is arranged in the water inlet box 2 The side wall of the bottom end of the sedimentation tank 3 is provided with a water outlet pipe 31 that communicates with its interior, the water inlet pipe 21 and the water outlet pipe 31 are both provided with a valve 22, and the sedimentation tank 3 and the water outlet pipe 31 are provided with valves 22. A first water pump 7 is arranged between the water inlet tanks 2 , the input end of the first water pump 7 is provided with a first pipeline 71 which is communicated with the inside of the water inlet tank 2 , and the output of the first water pump 7 is The end is provided with a second pipeline 72 that communicates with the interior of the sedimentation tank 3, the filter assembly 4 is arranged in the water inlet tank 2, and the drug delivery component 5 is arranged on the side of the sedimentation tank 3, And the medicine delivery assembly 5 is communicated with the sedimentation tank 3, the sedimentation assembly 6 is arranged on the top of the sedimentation tank 3, and the valve 22 on the water inlet pipe 21 is opened by manually pushing the vehicle body 1 to the flow stall. , and then the waste water of the flow booth flows into the water inlet tank 2 through the water inlet pipe 21, and the filter assembly 4 in the water inlet tank 2 filters the waste water, and then the first water pump 7 works to extract the filtered waste water in the water inlet tank 2 through the first The first pipeline 71 and the second pipeline 72 flow into the sedimentation tank 3, and then the medicine delivery assembly 5 mixes the liquid medicine and delivers it to the sedimentation tank 3. The waste water in the sedimentation tank 3 reacts with the liquid medicine to accelerate the precipitation of impurities in the waste water, and then Then the precipitation assembly 6 works to lift the impurities deposited in the precipitation tank 3 to facilitate manual cleaning of the precipitated impurities. Finally, the valve 22 on the water outlet pipe 31 is opened to discharge the treated wastewater after precipitation in the precipitation tank 3. For the purpose of treating the waste water of the mobile stall, the movement of the whole device can be completed only by manually pushing the vehicle body 1, which is convenient for the use of the mobile stall and has strong practicability.

Specifically, the filter assembly 4 includes a filter screen plate 41 and two filter chutes 42. The two filter chutes 42 are symmetrically arranged in the water inlet tank 2, and the filter screen plate 41 is arranged on the two filter chutes 42. Between the two filter chutes 42, and the two ends of the filter plate 41 are slidingly matched with the two filter chutes 42, the filter plate 41 is provided with a number of filter holes 43, when the flow spreads When the waste water enters the water inlet tank 2, the waste water is filtered through several filter holes 43 on the filter screen plate 41, and the larger impurities doped in the waste water are blocked by several filter holes 43, and the filtered waste water It falls below the filter screen plate 41, which is convenient for the first water pump 7 to transport the filtered waste water into the sedimentation tank 3. At the same time, the two ends of the filter screen plate 41 are slidingly matched with the two filter chutes 42, which is convenient for manual adjustment of the filter screen plate 41. Perform regular maintenance and replacement.

Specifically, the medicine delivery assembly 5 includes a mixing tank 51 , a stirring and mixing member 52 , a second water pump 53 , a third pipeline 54 , a fourth pipeline 55 and four supporting legs 56 , and the mixing tank 51 passes through the four The support legs 56 are installed on the vehicle body 1 , the top of the mixing tank 51 is provided with a material injection port 57 communicating with the inside thereof, the stirring and mixing member 52 is arranged in the mixing tank 51 , and the second The water pump 53 is arranged on the side of the sedimentation tank 3, the two ends of the third pipe 54 are respectively connected with the input end of the second water pump 53 and the mixing tank 51, and the two ends of the fourth pipe 55 are respectively connected. The two ends are respectively communicated with the output end of the second water pump 53 and the sedimentation tank 3, and the precipitation agent and water are added to the mixing tank 51 by manually using the material injection port 57, and then the mixing element 52 is stirred to work on the mixing tank 51. The precipitation agent and water are stirred and mixed, and then the second water pump 53 works to extract the liquid medicine formed after stirring and mixing in the mixing tank 51 and flows into the sedimentation tank 3 through the third pipeline 54 and the fourth pipeline 55, so as to facilitate the waste water in the sedimentation tank 3. Reacts with potions to accelerate the precipitation of impurities in wastewater.

Specifically, the stirring and mixing member 52 includes a stirring shaft 521, a stirring motor 522 and several stirring blades 523. The stirring shaft 521 can be rotatably installed in the mixing tank 51, and the stirring motor 522 is vertically arranged in the The bottom end of the mixing tank 51, and the output shaft of the stirring motor 522 is extended to be fixedly connected with the stirring shaft 521, and a plurality of the stirring blades 523 are arranged on the stirring shaft 521, and each stirring The blades 523 are provided with a number of through slots 524. The stirring motor 522 drives the stirring shaft 521 fixedly connected to its output shaft to rotate. The stirring shaft 521 drives a number of stirring blades 523 to rotate synchronously. The precipitation agent and water in 51 are stirred and mixed to achieve the purpose of fully mixing the precipitation agent and water.

Specifically, the sedimentation assembly 6 includes a lift box 61 , a pulling member 62 and two sliding columns 63 . The two sliding columns 63 are symmetrically arranged in the sedimentation box 3 , and the lift box 61 is arranged in the The inner bottom end of the sedimentation box 3, and the lifting box 61 is slidably matched with the two sliding columns 63, the inner bottom end of the lifting box 61 is provided with a number of water filtering holes 64, and the pulling member 62 is arranged at The top of the sedimentation box 3, and one end of the pulling member 62 is fixedly connected to the lifting box 61. The pulling member 62 includes a fixing plate 621, a pulling motor 622, a driving pulley 623, a driven pulley 624, and a belt 625. , a rotating shaft 626, two fixing seats 627 and two pulling members 628, the fixing plate 621 is installed on the top of the sedimentation tank 3, and the two fixing seats 627 are symmetrically arranged on the fixing plate 621, The rotating shaft 626 can be rotatably mounted on the two fixing bases 627 , and one end of the rotating shaft 626 extends to the outside of one of the fixing bases 627 , and the pulling motor 622 is horizontally arranged on the fixing base 627 . On the plate 621, the driving pulley 623 is fixedly connected with the output shaft of the pulling motor 622, the driven pulley 624 is fixedly connected with the end of the rotating shaft 626 extending to the outside of one of the fixed seats 627, the The belt 625 is sleeved on the outside of the driving pulley 623 and the driven pulley 624, and the two pulling members 628 are symmetrically arranged on the rotating shaft 626. When the wastewater in the sedimentation tank 3 reacts with the liquid medicine for a certain period of time Then, the driving pulley 623 fixedly connected to its output shaft is driven to rotate by the pulling motor 622. Since the belt 625 is sleeved on the outside of the driving pulley 623 and the driven pulley 624, the driving pulley 623 drives the driven pulley 624 and the belt 625 to rotate synchronously , the driven pulley 624 drives the rotating shaft 626 to rotate synchronously, the rotating shaft 626 drives the two pulling members 628 to pull the lift box 61 to move upward on the two sliding columns 63, and the lift box 61 blocks and collects the impurities deposited at the bottom of the sedimentation box 3 , to facilitate manual cleaning of the precipitated impurities collected in the lift box 61 .

Specifically, each of the pulling members 628 includes a vertical plate 6281, a sliding wheel 6282, a rope take-up wheel 6283 and a steel wire 6284. The vertical plate 6281 is provided at the top of the sedimentation tank 3, and the sliding wheel 6282 can It is rotatably installed on the side wall of the vertical plate 6281, the rope take-up wheel 6283 is fixedly connected with the rotating shaft 626, one end of the steel rope 6284 is fixedly connected with the rope take-up wheel 6283, and the rope 6284 The other end of the rope passes through the sliding wheel 6282 and is fixedly connected to the top of the lift box 61. The rotation of the rotating shaft 626 drives the rope take-up wheel 6283 to rotate synchronously. Winding, the steel rope 6284 is wound while using the sliding wheel 6282 to drive the lift box 61 to move upward on the two sliding columns 63 .

Specifically, the rear end of the vehicle body 1 is provided with a hand push rod 11 , and the bottom of the vehicle body 1 is provided with four self-locking universal wheels 12 distributed in a rectangular shape. Body 1, four self-locking casters 12 can fix the vehicle body 1.

The working principle of the utility model: when the utility model is in use, the car body 1 is driven to move to the booth by manually pushing the hand push rod 11, the valve 22 on the water inlet pipe 21 is opened, and then the waste water flowing from the stall flows through the water inlet pipe 21 to the inlet In the water tank 2, several filter holes 43 on the filter screen plate 41 in the water inlet tank 2 filter the waste water, and the larger impurities doped in the waste water are blocked by several filter holes 43, and the filtered waste water falls. To the bottom of the filter screen plate 41, it is convenient for the first water pump 7 to transport the filtered waste water into the sedimentation tank 3. At the same time, the two ends of the filter screen plate 41 are slidably matched with the two filter chutes 42 to facilitate the manual operation of the filter screen plate 41. Regular maintenance and replacement, then the first water pump 7 works to extract the filtered waste water in the water inlet tank 2 and flows into the sedimentation tank 3 through the first pipeline 71 and the second pipeline 72, and then manually uses the material injection port 57 to flow into the mixing tank 51. Add the precipitation agent and water, the stirring motor 522 works to drive the stirring shaft 521 fixedly connected to its output shaft to rotate, and the stirring shaft 521 drives a number of stirring blades 523 to rotate synchronously, and the rotation of the several stirring blades 523 will affect the precipitation agent and water in the mixing tank 51. For stirring and mixing, the second water pump 53 works to extract the liquid medicine formed after stirring and mixing in the mixing tank 51 and flows into the sedimentation tank 3 through the third pipeline 54 and the fourth pipeline 55, and the wastewater in the sedimentation tank 3 reacts with the liquid medicine to speed up the wastewater When the waste water in the sedimentation tank 3 reacts with the liquid medicine for a certain period of time, the pulling motor 622 works to drive the driving pulley 623 fixedly connected to its output shaft to rotate, because the belt 625 is set on the outside of the driving pulley 623 and the driven pulley 624. Therefore, the driving pulley 623 drives the driven pulley 624 and the belt 625 to rotate synchronously, the driven pulley 624 drives the rotating shaft 626 to rotate synchronously, the rotating shaft 626 drives the rope pulley 6283 to rotate synchronously, and the rope pulley 6283 rotates to drive the steel rope 6284 to rotate. The rope pulley 6283 is wound inside, and the steel rope 6284 is wound while the sliding wheel 6282 is used to drive the lift box 61 to move upward on the two sliding columns 63, so as to facilitate manual cleaning of the precipitated impurities, and finally open the valve 22 on the water outlet pipe 31 to remove The treated wastewater after sedimentation in the sedimentation tank 3 is discharged to achieve the purpose of treating the wastewater from the mobile stalls. The entire device can be moved only by manually pushing the car body 1, which is convenient for the use of mobile stalls and has strong practicability.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (7)

1. A small waste water treatment device that is easy to move, characterized in that it comprises a vehicle body (1), a water inlet tank (2), a sedimentation tank (3), a filter assembly (4), a medicine delivery assembly (5) and a sedimentation The assembly (6), the water inlet box (2) is arranged at the rear end of the vehicle body (1), and the top end of the water inlet box (2) is provided with a water inlet pipe (21) communicating with the inside thereof, so The sedimentation tank (3) is arranged on the side of the water inlet tank (2), the bottom end sidewall of the sedimentation tank (3) is provided with a water outlet pipe (31) that communicates with the inside thereof, and the water inlet pipe (21) and the water outlet pipe (31) are provided with a valve (22), a first water pump (7) is provided between the sedimentation tank (3) and the water inlet tank (2), the The input end of a water pump (7) is provided with a first pipeline (71) communicating with the inside of the water inlet tank (2), and the output end of the first water pump (7) is provided with the sedimentation tank (3) ) a second pipeline (72) that communicates internally, the filter assembly (4) is arranged in the water inlet tank (2), and the medicine delivery assembly (5) is arranged beside the sedimentation tank (3) and the medicine delivery assembly (5) communicates with the sedimentation tank (3), and the sedimentation assembly (6) is arranged on the top of the sedimentation tank (3). 2 . The portable small wastewater treatment device according to claim 1 , wherein the filter assembly ( 4 ) comprises a filter screen plate ( 41 ) and two filter chutes ( 42 ). The filter chute (42) is symmetrically arranged in the water inlet tank (2), the filter screen plate (41) is arranged between the two filter chute (42), and the filter screen plate (41) Both ends of (41) are slidably matched with the two filter chutes (42), and the filter screen plate (41) is provided with a plurality of filter holes (43). 3. The portable small wastewater treatment device according to claim 1, characterized in that: the medicine delivery assembly (5) comprises a mixing tank (51), a stirring and mixing part (52), a second water pump (53) ), a third pipe (54), a fourth pipe (55) and four support legs (56), the mixing tank (51) is mounted on the vehicle body (1) through the four support legs (56) Above, the top of the mixing tank (51) is provided with a material injection port (57) that communicates with the inside thereof, the stirring and mixing member (52) is arranged in the mixing tank (51), and the second water pump ( 53) is arranged on the side of the settling tank (3), the two ends of the third pipeline (54) are respectively connected with the input end of the second water pump (53) and the mixing tank (51), Both ends of the fourth pipe (55) are respectively communicated with the output end of the second water pump (53) and the sedimentation tank (3). 4. A small-sized wastewater treatment device that is easy to move according to claim 3, wherein the stirring and mixing member (52) comprises a stirring shaft (521), a stirring motor (522) and several stirring blades (523) ), the stirring shaft (521) can be rotatably installed in the mixing tank (51), the stirring motor (522) is vertically arranged at the bottom end of the mixing tank (51), and the stirring motor The output shaft of (522) extends to be fixedly connected with the stirring shaft (521), a plurality of the stirring blades (523) are arranged on the stirring shaft (521), and each stirring blade (523) is Several through-slots (524) are provided. 5. The portable small wastewater treatment device according to claim 1, wherein the sedimentation assembly (6) comprises a lift box (61), a pulling part (62) and two sliding columns (63) , the two sliding columns (63) are symmetrically arranged in the sedimentation box (3), the lifting box (61) is arranged at the inner bottom end of the sedimentation box (3), and the lifting box ( 61) slidingly cooperates with the two sliding columns (63), the inner bottom end of the lifting box (61) is provided with a plurality of water filtering holes (64), and the pulling member (62) is arranged in the sedimentation box (3), and one end of the pulling member (62) is fixedly connected to the lifting box (61), the pulling member (62) includes a fixing plate (621), a pulling motor (622), a driving pulley ( 623), a driven pulley (624), a belt (625), a rotating shaft (626), two fixing seats (627) and two pulling pieces (628), the fixing plate (621) is installed on the sedimentation tank At the top of (3), the two fixing bases (627) are symmetrically arranged on the fixing plate (621), and the rotating shaft (626) can be rotatably mounted on the two fixing bases (627), And one end of the rotating shaft (626) extends to the outside of one of the fixing seats (627), the pulling motor (622) is horizontally arranged on the fixing plate (621), and the driving pulley (623) ) is fixedly connected with the output shaft of the pulling motor (622), the driven pulley (624) is fixedly connected with the end of the rotating shaft (626) extending to the outside of one of the fixed seats (627), the A belt (625) is sleeved on the outside of the driving pulley (623) and the driven pulley (624), and the two pulling members (628) are symmetrically arranged on the rotating shaft (626). 6. A small-sized waste water treatment device that is easy to move according to claim 5, characterized in that: each said pulling member (628) comprises a vertical plate (6281), a sliding wheel (6282), a rope take-up wheel (6282) 6283) and a steel wire (6284), the vertical plate (6281) is arranged at the top of the sedimentation tank (3), and the sliding wheel (6282) can be rotatably installed on the side wall of the vertical plate (6281) , the rope take-up pulley (6283) is fixedly connected with the rotating shaft (626), one end of the steel rope (6284) is fixedly connected with the rope take-up pulley (6283), and the other end of the steel rope (6284) is fixedly connected One end is fixedly connected to the top of the lift box (61) after passing through the sliding wheel (6282). 7. A small wastewater treatment device that is easy to move according to claim 1, characterized in that: the rear end of the vehicle body (1) is provided with a hand push rod (11), and the The bottom is provided with four self-locking universal wheels (12) distributed in a rectangular shape.

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