CN113063912A

CN113063912A - Pre-detection device and method for wastewater

Info

Publication number: CN113063912A
Application number: CN202110326280.5A
Authority: CN
Inventors: 邓翼俊; 熊长平
Original assignee: Hunan Zehuan Detection Technology Co ltd
Current assignee: Hunan Zehuan Detection Technology Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-07-02
Anticipated expiration: 2041-03-26
Also published as: CN113063912B

Abstract

The invention relates to a pre-detection device and method for wastewater, and the pre-detection device comprises a wastewater pipe, wherein one end of the wastewater pipe is fixedly connected with a water diversion pipe, one side of the water diversion pipe is fixedly connected with a first drain pipe, the other end of the water diversion pipe is fixedly connected with a second drain pipe, the other end of the second drain pipe is fixedly connected with a detection box, the upper part of one side, close to the second drain pipe, of the detection box is fixedly provided with a water inlet pipe, the lower part of one side, far away from the second drain pipe, of the detection box is fixedly provided with a water pump, the output end of the water pump is fixedly connected with a water suction pipe, the other end of the water suction pipe penetrates through one adjacent side of the detection box and extends into the detection box, the output end of the water pump is fixedly connected. The invention is convenient to use, can effectively improve the accuracy and convenience of detection, and simultaneously effectively reduces the labor intensity of workers.

Description

Pre-detection device and method for wastewater

Technical Field

The invention relates to a device and a method for pre-detecting wastewater, and belongs to the technical field of wastewater detection devices.

Background

The waste water is a general term of water and runoff rainwater discharged in the process of activities of residents, and comprises domestic sewage, industrial waste water and other useless water such as water pipes and canals for flowing primary rainwater into the water pipes, and generally refers to water which can not be recycled after being treated by a certain technology or can not reach a certain standard after being subjected to primary pollution to prepare pure water.

The direct inflow of industrial wastewater into channels, rivers and lakes pollutes surface water, and if the industrial wastewater is highly toxic, aquatic animals and plants die and even die. Industrial waste water may also permeate into underground water to pollute the underground water, and if surrounding residents adopt polluted surface water or underground water as domestic water, the polluted surface water or the polluted underground water can harm the health of the residents and can cause death of the residents. Industrial wastewater permeates into soil, causing soil pollution, and affecting the growth of plants and microorganisms in the soil. Toxic and harmful substances in the industrial wastewater can be remained in the body by the ingestion and absorption of passive plants and then reach the human body through a food chain, thus causing harm to the human body. The waste water is extremely harmful, so the waste water needs to be detected and treated before being discharged, and can be discharged after reaching a certain standard.

Present waste water detection device is when using, generally need use tools to collect certain sample to stay the sample in specific container, then detect at the operative installations, this in-process, not only the sample is comparatively loaded down with trivial details, sample and testing process simultaneously, waste water produces the sediment because of static easily, and then causes the phenomenon emergence that the measured data is inaccurate, the sample after the simultaneous detection need be handled, avoid producing the pollution, thereby personnel's working strength has been increased.

Disclosure of Invention

The invention aims to provide a device and a method for pre-detecting wastewater, which are convenient to use, can effectively improve the accuracy and convenience of detection, and simultaneously effectively reduce the labor intensity of workers so as to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

a pre-detection device for wastewater comprises a wastewater pipe, wherein one end of the wastewater pipe is fixedly connected with a shunt pipe, one side of the shunt pipe is fixedly connected with a first drain pipe, the other end of the shunt pipe is fixedly connected with a second drain pipe, the other end of the second drain pipe is fixedly connected with a detection box, the upper part of one side, close to the second drain pipe, of the detection box is fixedly provided with a water inlet pipe, the lower part of one side, away from the second drain pipe, of the detection box is fixedly provided with a water pump, the output end of the water pump penetrates through one adjacent side of the detection box and extends into the detection box, the output end of the water pump is fixedly connected with a water supply pipe, the top end of the detection box is fixedly provided with a U-shaped bracket, a cross rod is arranged in the U-shaped bracket in a sliding manner, the bottom end of the cross rod, the top of detection case seted up with support assorted through-hole, the through-hole is located under the support, the bottom of test bar passes through extend to behind the through-hole in the detection case.

Furthermore, the inner wall of the upper part of the water distribution pipe is symmetrically and fixedly provided with baffles, the inner wall of the lower part of the water distribution pipe is symmetrically and fixedly provided with limiting rings, the limiting rings and the baffles are symmetrically distributed on two sides of the waste water pipe, and the top ends of the limiting rings and the bottom ends of the baffles are provided with grooves.

Further, the interior symmetry of distributive pipe is equipped with the bearing frame, the fixed a plurality of branches that are equipped with of equal annular array on the bearing frame, the other end of branch all with one side inner wall fixed connection that the distributive pipe is adjacent, it is equipped with the pivot to run through the rotation on the bearing frame, the both ends of pivot extend to adjacent respectively in the baffle and fixedly connected with and recess assorted baffle, the baffle all with adjacent baffle inner wall, spacing ring inner wall are contradicted.

Further, fixed cover is equipped with bevel gear one in the pivot, the bottom mounting of distributive pipe is equipped with the motor, the output of motor runs through the bottom of distributive pipe extends to in the distributive pipe and fixedly connected with bevel gear two, bevel gear two with bevel gear engagement, the fixed cover in the outside of motor be equipped with support and support with the bottom fixed connection of distributive pipe.

Furthermore, a valve is arranged on the water inlet pipe.

Further, the top inner wall of U type support is gone up the symmetry and is fixed and be equipped with the cylinder, the output of cylinder all with the top fixed connection of horizontal pole.

Further, the vertical portion of U type support is close to one side of horizontal pole has all seted up the spout, all slide in the spout and be equipped with the slider, the slider all with one side fixed connection that the horizontal pole is adjacent.

Furthermore, the bottom end of the detection rod is fixedly provided with a temperature sensor, a turbidity sensor and a PH sensor in a surrounding manner.

Furthermore, the inner wall of the bottom end of the detection box is obliquely arranged.

Further, a PLC controller is fixedly arranged on the outer wall of the front side of the detection box, the temperature sensor, the turbidity sensor and the PH sensor are electrically connected with the input end of the PLC controller, and the motor, the air cylinder and the water pump are electrically connected with the output end of the PLC controller.

A method for the pre-detection of wastewater, comprising the steps of:

s1, the method comprises the following steps: firstly, the PLC controller controls the motor to work, so that the motor drives the bevel gear II to rotate, the bevel gear II drives the bevel gear I to rotate, the bevel gear I drives the rotating shaft to rotate, the rotating shaft can be supported by the supporting rod and the bearing seat at the moment, the baffle can be driven to rotate by the rotating shaft, when the baffle rotates into the baffle, the corresponding end of the water distribution pipe is in an open state at the moment, when the baffle rotates into the limiting ring, the corresponding end of the water distribution pipe can be closed by the baffle and the baffle at the moment, the first time division water pipe is opened close to one side of the water drainage pipe II, so that the wastewater enters the detection box through the water drainage pipe II, and meanwhile, the PLC controller controls the water pump to work, so that the water pump pumps the wastewater in the detection box into the wastewater treatment device again, at the moment, the temperature sensor, Turbidity sensor, PH sensor can detect temperature, turbidity and the pH value of waste water in the detection case, and the data after the while detects will transmit to the PLC controller in to show through the display screen on the PLC controller.

S2, the method comprises the following steps: after detecting qualified, the motor is worked once more this moment, thereby make the distributive pipe close to one side of drain pipe two and close, the distributive pipe is close to one side of drain pipe one and opens simultaneously, thereby make waste water discharge through drain pipe one, then through pump body connection between inlet tube and the water tank, thereby after the waste water detection in the detection case is accomplished, pour into the washing liquid into to the detection case through the inlet tube in, thereby wash detection case inner wall and gauge rod, avoid remaining waste water in the detection case and on the gauge rod, and then produce the error when making waste water detect once more.

S3, the method comprises the following steps: when the detection pole needs maintenance or change, can drive the horizontal pole through the cylinder and carry out ascending removal in vertical side this moment, when the horizontal pole takes place to remove, the horizontal pole will drive the slider and carry out ascending removal in vertical side in the spout this moment, will drive support and detection pole through the horizontal pole and carry out ascending removal in vertical side simultaneously to make the detection pole remove outside the detection case, and then can conveniently change the detection pole.

The invention has the beneficial effects that:

according to the invention, the baffle and the baffle are arranged, when the device is used, the motor drives the bevel gear II to rotate, so that the bevel gear II drives the bevel gear I to rotate, the bevel gear I drives the rotating shaft to rotate, and the supporting rod and the bearing seat can support the rotating shaft; the baffle can be driven to rotate through the rotating shaft, and when the baffle rotates into the baffle, the corresponding end of the water distribution pipe is in an open state; when the baffle rotates into the limiting ring, the corresponding end of the water distribution pipe can be closed through the baffle and the baffle, so that the flow direction of the wastewater can be controlled, and the wastewater is discharged after being detected to be qualified; the arrangement of the valve body can be reduced, and the valve body is prevented from being opened and closed frequently by workers, so that the labor intensity of the workers is reduced; meanwhile, by arranging the detection box, after the wastewater is injected into the detection box, the wastewater is extracted by the water pump, so that the wastewater is always in a flowing state, and the phenomenon that the detection data is inaccurate due to the generation of precipitation of the wastewater is avoided; through the arrangement of the support and the cross rod, the cross rod can be pushed to vertically move up and down through the air cylinder, when the cross rod moves, the cross rod drives the sliding block to vertically move up and down in the sliding groove, so that the cross rod can be limited and supported through the sliding block, and meanwhile, the support and the detection rod are driven to vertically move up and down through the cross rod, so that the detection rod can be conveniently replaced, and meanwhile, the water pump pumps the wastewater into the wastewater treatment device again, so that a sample can be conveniently treated; the water inlet pipe is arranged, so that the water inlet pipe can be connected with the water tank through the pump body, when the detection of the wastewater in the detection box is finished, cleaning liquid is injected into the detection box through the water inlet pipe, the inner wall of the detection box and the detection rod are washed, the wastewater in the detection box and on the detection rod is prevented from being remained, and further, an error is generated when the wastewater is detected again; the invention is convenient to use, can effectively improve the accuracy and convenience of detection, and simultaneously effectively reduces the labor intensity of workers.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention.

FIG. 1 is a front view of a pre-detection apparatus and method for wastewater of the present invention;

FIG. 2 is a schematic diagram of a pre-detection apparatus and method for wastewater according to the present invention;

FIG. 3 is an enlarged view at A in FIG. 2 of a preliminary wastewater detection apparatus and method of the present invention;

FIG. 4 is a cross-sectional view of a knock out pipe of an apparatus and method for pre-detection of wastewater of the present invention 1;

FIG. 5 is a cross-sectional view of a knock out pipe of an apparatus and method for pre-detection of wastewater of the present invention, shown generally at 2;

FIG. 6 is an enlarged view at B in FIG. 2 of a preliminary wastewater detection apparatus and method according to the present invention;

reference numbers in the figures: 1. a waste pipe; 2. a water diversion pipe; 3. a first water drainage pipe; 4. a second water drainage pipe; 5. a detection box; 6. a water inlet pipe; 7. a water pump; 8. a water pumping pipe; 9. a water supply pipe; 10. a U-shaped bracket; 11. a cross bar; 12. a support; 13. a detection lever; 14. a through hole; 15. a baffle plate; 16. a limiting ring; 17. a bearing seat; 18. a strut; 19. a rotating shaft; 20. a baffle plate; 21. a first bevel gear; 22. a motor; 23. a second bevel gear; 24. a cylinder; 25. a chute; 26. a slider; 27. a temperature sensor; 28. a turbidity sensor; 29. a pH sensor; 30. a PLC controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution:

a pre-detection device for wastewater comprises a wastewater pipe 1, wherein one end of the wastewater pipe 1 is fixedly connected with a shunt pipe 2, one side of the shunt pipe 2 is fixedly connected with a drain pipe 3, the other end of the shunt pipe 2 is fixedly connected with a drain pipe two 4, the other end of the drain pipe two 4 is fixedly connected with a detection box 5, the upper part of one side, close to the drain pipe two 4, of the detection box 5 is fixedly provided with a water inlet pipe 6, the lower part of one side, far away from the drain pipe two 4, of the detection box 5 is fixedly provided with a water pump 7, the output end of the water pump 7 is fixedly connected with a water pumping pipe 8, the other end of the water pumping pipe 8 penetrates through one side, adjacent to the detection box 5, and extends into the detection box 5, the output end of the water pump 7 is fixedly connected with a water supply pipe 9, the top end of the detection box 5, the bottom fixedly connected with support 12 of horizontal pole 11, the bottom fixedly connected with detection pole 13 of support 12, the top of detection case 5 seted up with support 12 assorted through-hole 14, through-hole 14 is located under support 12, the bottom of detection pole 13 is passed through extend to behind the through-hole 14 in the detection case 5, the one end that the distributive pipe 2 was kept away from to waste pipe 1 and wastewater treatment device's discharge outlet department fixed connection, the other end of flow pipe 9 and wastewater treatment device's inlet department fixed connection.

Specifically, as shown in fig. 2-5, the upper inner wall of the water diversion pipe 2 is symmetrically and fixedly provided with a baffle 15, the lower inner wall of the water diversion pipe 2 is symmetrically and fixedly provided with a limiting ring 16, the limiting ring 16 and the baffle 15 are symmetrically and symmetrically distributed on two sides of the wastewater pipe 1, the top end of the limiting ring 16 and the bottom end of the baffle 15 are both provided with a groove, bearing seats 17 are symmetrically arranged in the water diversion pipe 2, a plurality of support rods 18 are fixedly arranged on the bearing seats 17 in an annular array manner, the other ends of the support rods 18 are fixedly connected with the inner wall of one side adjacent to the water diversion pipe 2, a rotating shaft 19 is arranged on the bearing seats 17 in a penetrating and rotating manner, two ends of the rotating shaft 19 respectively extend to the adjacent baffle 15 and are fixedly connected with baffles 20 matched with the groove, the baffles 20 are adjacent to the inner wall of the baffle 15, The inner wall of the limiting ring 16 is abutted, a first bevel gear 21 is fixedly sleeved on the rotating shaft 19, a motor 22 is fixedly arranged at the bottom end of the water distribution pipe 2, the output end of the motor 22 penetrates through the bottom end of the water distribution pipe 2 and extends into the water distribution pipe 2 and is fixedly connected with a second bevel gear 23, the second bevel gear 23 is in gear engagement with the first bevel gear 21, a bracket is fixedly sleeved on the outer side of the motor 22 and is fixedly connected with the bottom end of the water distribution pipe 2, the motor 22 drives the second bevel gear 23 to rotate, so that the second bevel gear 23 drives the first bevel gear 21 to rotate, the first bevel gear 21 drives the rotating shaft 19 to rotate, the supporting rod 18 and the bearing seat 17 can support the rotating shaft 19, the rotating shaft 19 can drive the baffle 20 to rotate, when the baffle 20 rotates into the baffle plate 15, the corresponding end of the water distribution pipe 2 is in an open state, when the baffle 20 is rotated into the stop collar 16, the corresponding end of the water distribution pipe 2 can be closed by the baffle 20 and the baffle 15.

Specifically, as shown in fig. 1 and 2, be equipped with the valve on the inlet tube 6, through setting up inlet tube 6, can be with through pump body connection between inlet tube 6 and the water tank to after the waste water detection in detection case 5 accomplished, inject the washing liquid into to detection case 5 in through inlet tube 6, thereby wash detection case 5 inner wall and test bar 13, it is remaining to avoid 13 residual waste water in the detection case 5 and on the test bar, and then produce the error when making waste water detect once more.

Specifically, as shown in fig. 1 and fig. 2, air cylinders 24 are symmetrically and fixedly arranged on the inner wall of the top end of the U-shaped support 10, the output ends of the air cylinders 24 are all fixedly connected with the top end of the cross rod 11, sliding grooves 25 are all formed in one side of the vertical portion of the U-shaped support 10, which is close to the cross rod 11, sliding blocks 26 are all slidably arranged in the sliding grooves 25, the sliding blocks 26 are all fixedly connected with one side of the cross rod 11, the air cylinders 24 can push the cross rod 11 to vertically move up and down, when the cross rod 11 moves, the cross rod 11 drives the sliding blocks 26 to vertically move up and down in the sliding grooves 25, so that the cross rod 11 can be supported in a limiting manner through the sliding blocks 26, and meanwhile, the support 12 and the detection rod 13 can be driven to vertically move up and down through the cross rod 11, so that the detection rod, the detection rod 13 and the support 12 can be fixedly connected through a threaded connection.

Specifically, as shown in fig. 1-6, the bottom of detection lever 13 encircles fixed temperature sensor 27, turbidity sensor 28 and PH sensor 29 of being equipped with, the bottom inner wall of detection case 5 sets up for the slope, the fixed PLC controller 30 that is equipped with on the front side outer wall of detection case 5, temperature sensor 27, turbidity sensor 28, PH sensor 29 all with PLC controller 30's input electric connection, motor 22, cylinder 24, water pump 7 all with PLC controller 30's output electric connection can detect temperature, turbidity and the PH value of waste water in the detection case 5 through temperature sensor 27, turbidity sensor 28, PH sensor 29, and the data after the while detects will be transmitted to in the PLC controller 30 to show through the display screen on the PLC controller 30.

A method for the pre-detection of wastewater, comprising the steps of:

s1, the method comprises the following steps: firstly, the PLC 30 controls the motor 22 to work, so that the motor 22 drives the bevel gear II 23 to rotate, the bevel gear II 23 drives the bevel gear I21 to rotate, the bevel gear I21 drives the rotating shaft 19 to rotate, the supporting rod 18 and the bearing seat 17 can support the rotating shaft 19 at the moment, the rotating shaft 19 can drive the baffle 20 to rotate, when the baffle 20 rotates into the baffle 15, the corresponding end of the water distribution pipe 2 is in an open state, when the baffle 20 rotates into the limiting ring 16, the corresponding end of the water distribution pipe 2 can be closed through the baffle 20 and the baffle 15 at the moment, one side of the water distribution pipe 2 close to the drain pipe II 4 is opened, so that the wastewater enters the detection box 5 through the drain pipe II 4, meanwhile, the PLC 30 controls the water pump 7 to work, so that the water pump 7 pumps the wastewater in the detection box 5 into the wastewater treatment device again, can detect temperature, turbidity and the pH value of waste water in the detection case 5 through temperature sensor 27, turbidity sensor 28, PH sensor 29 this moment, the data after the while detects will be transmitted to PLC controller 30 in to show through the display screen on the PLC controller 30.

S2, the method comprises the following steps: when detecting qualified back, this moment motor 22 is worked once more, thereby make the distributive pipe 2 close to one side of drain pipe two 4 and close, the distributive pipe 2 is close to one side of drain pipe 3 and opens simultaneously, thereby make waste water discharge through drain pipe 3, then through pump body connection between inlet tube 6 and the water tank, thereby after the waste water detection in detection case 5 accomplishes, pour into the washing liquid into to detection case 5 in through inlet tube 6, thereby wash detection case 5 inner wall and test bar 13, avoid remaining waste water in the detection case 5 and on the test bar 13, and then produce the error when making waste water detect once more.

S3, the method comprises the following steps: when detection pole 13 needs maintenance or change, can drive horizontal pole 11 through cylinder 24 this moment and carry out ascending removal in vertical side, when horizontal pole 11 takes place to remove, horizontal pole 11 will drive slider 26 and carry out ascending removal in vertical side in spout 25 this moment, will drive support 12 and detection pole 13 through horizontal pole 11 simultaneously and carry out ascending removal in vertical side to make detection pole 13 remove outside detection case 5, and then can conveniently change detection pole 13.

The working principle of the invention is as follows: when the device is used, the PLC 30 is used for controlling the motor 22 to work, so that the motor 22 drives the bevel gear II 23 to rotate, the bevel gear II 23 drives the bevel gear I21 to rotate, the bevel gear I21 drives the rotating shaft 19 to rotate, and the supporting rod 18 and the bearing seat 17 can be used for supporting the rotating shaft 19. The baffle 20 can be driven to rotate by the rotating shaft 19, and when the baffle 20 rotates into the baffle 15, the corresponding end of the distributive pipe 2 is in an open state. When the baffle 20 rotates into the limiting ring 16, the baffle 20 and the baffle 15 can close the corresponding end of the water distribution pipe 2, and at the moment, the side of the water distribution pipe 2 close to the second drainage pipe 4 is opened first, so that wastewater enters the detection box 5 through the second drainage pipe 4. Simultaneously PLC controller 30 control water pump 7 work for in water pump 7 pumps the waste water in the detection case 5 to wastewater treatment facilities once more, can detect temperature, turbidity and the pH value of waste water in the detection case 5 through temperature sensor 27, turbidity sensor 28, PH sensor 29 this moment, the data after the while detects will transmit to PLC controller 30 in, and show through the display screen on the PLC controller 30. When the detection is qualified, the motor 22 works again at the moment, so that one side of the water distribution pipe 2 close to the second drain pipe 4 is closed, and meanwhile, one side of the water distribution pipe 2 close to the first drain pipe 3 is opened, so that the wastewater is discharged through the first drain pipe 3. Then with through pump body connection between inlet tube 6 and the water tank to after the waste water detection in detection case 5 accomplished, inject the washing liquid into detection case 5 in through inlet tube 6, thereby wash detection case 5 inner wall and test rod 13, it is remaining that waste water is remaining in the detection case 5 and on the test rod 13, and then produces the error when making waste water detect once more. When detection pole 13 needs maintenance or change, can drive horizontal pole 11 through cylinder 24 this moment and carry out ascending removal in vertical side, when horizontal pole 11 takes place to remove, horizontal pole 11 will drive slider 26 and carry out ascending removal in vertical side in spout 25 this moment, will drive support 12 and detection pole 13 through horizontal pole 11 simultaneously and carry out ascending removal in vertical side to make detection pole 13 remove outside detection case 5, and then can conveniently change detection pole 13.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A pre-detection device for waste water, comprising a waste pipe (1), characterized in that: one end of the waste water pipe (1) is fixedly connected with a water diversion pipe (2), one side of the water diversion pipe (2) is fixedly connected with a first drain pipe (3), the other end of the water diversion pipe (2) is fixedly connected with a second drain pipe (4), the other end of the second drain pipe (4) is fixedly connected with a detection box (5), a water inlet pipe (6) is fixedly arranged at the upper part of one side, close to the second drain pipe (4), of the detection box (5), a water pump (7) is fixedly arranged at the lower part of one side, far away from the second drain pipe (4), of the detection box (5), the output end of the water pump (7) is fixedly connected with a water pumping pipe (8), the other end of the water pumping pipe (8) penetrates through one adjacent side of the detection box (5) and extends into the detection box (5), and the output end of; the fixed U type support (10) that is equipped with in top of detection case (5), it is equipped with horizontal pole (11) to slide in U type support (10), the bottom fixedly connected with support (12) of horizontal pole (11), the bottom fixedly connected with detection pole (13) of support (12), the top of detection case (5) seted up with support (12) assorted through-hole (14), through-hole (14) are located under support (12), the bottom of detection pole (13) is passed through extend to behind through-hole (14) in detection case (5).

2. A pre-detection apparatus for wastewater according to claim 1, wherein: the utility model discloses a waste water pipe, including shunt pipe (2), baffle (15), spacing ring (16), baffle (15) and waste water pipe, the symmetry encircles fixed baffle (15) that is equipped with on the upper portion inner wall of shunt pipe (2), the symmetry encircles fixed spacing ring (16) that is equipped with on the lower part inner wall of shunt pipe (2), spacing ring (16) with the equal symmetric distribution of baffle (15) is in the both sides of waste water pipe (1), the top of spacing ring (16) with the bottom of baffle (15) is all seted up flutedly.

3. A pre-detection device for wastewater according to claim 2, characterized in that: symmetry is equipped with bearing frame (17) in distributive pipe (2), equal annular array is fixed to be equipped with a plurality of branches (18) on bearing frame (17), the other end of branch (18) all with distributive pipe (2) adjacent one side inner wall fixed connection, it is equipped with pivot (19) to run through the rotation on bearing frame (17), the both ends of pivot (19) extend to adjacent respectively baffle (15) interior and fixedly connected with and recess assorted baffle (20), baffle (20) all with adjacent baffle (15) inner wall, spacing ring (16) inner wall are contradicted.

4. A pre-detection apparatus for wastewater according to claim 3, wherein: fixed cover is equipped with bevel gear (21) on pivot (19), the bottom mounting of distributive pipe (2) is equipped with motor (22), the output of motor (22) runs through the bottom of distributive pipe (2) extends to in distributive pipe (2) and fixedly connected with bevel gear two (23), bevel gear two (23) with bevel gear (21) gear engagement, the fixed cover in the outside of motor (22) be equipped with support and support with the bottom fixed connection of distributive pipe (2).

5. A pre-detection apparatus for wastewater according to claim 1, wherein: and a valve is arranged on the water inlet pipe (6).

6. A pre-detection device for wastewater according to claim 4, characterized in that: the air cylinders (24) are symmetrically and fixedly arranged on the inner wall of the top end of the U-shaped support (10), and the output ends of the air cylinders (24) are fixedly connected with the top end of the cross rod (11).

7. A pre-detection apparatus for wastewater according to claim 6, wherein: the U-shaped support is characterized in that a sliding groove (25) is formed in one side, close to the cross rod (11), of the vertical portion of the U-shaped support (10), sliding blocks (26) are arranged in the sliding groove (25) in a sliding mode, and the sliding blocks (26) are fixedly connected with one side, adjacent to the cross rod (11).

8. A pre-detection apparatus for wastewater according to claim 6, wherein: the bottom end of the detection rod (13) is fixedly provided with a temperature sensor (27), a turbidity sensor (28) and a PH sensor (29) in a surrounding way.

9. A pre-detection apparatus for wastewater according to claim 8, wherein: the utility model discloses a temperature-sensing detection box, including detection case (5), temperature sensor (27), turbidity sensor (28), PH sensor (29), motor (22), cylinder (24), water pump (7) and PLC controller (30), the front side outer wall of detection case (5) is last to be fixed to be equipped with PLC controller (30), temperature sensor (27), turbidity sensor (28), PH sensor (29) all with the input electric connection of PLC controller (30), motor (22), cylinder (24), water pump (7) all with the output electric connection of PLC controller (30.

10. A preliminary testing method for wastewater, applied to a preliminary testing apparatus for wastewater according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:

s1, the PLC (30) controls the motor (22) to work, the motor (22) drives the bevel gear II (23) to rotate, the bevel gear II (23) drives the bevel gear I (21) to rotate, the bevel gear I (21) drives the rotating shaft (19) to rotate, the rotating shaft (19) drives the baffle (20) to rotate, when the baffle (20) rotates into the baffle (15), the corresponding end of the water distribution pipe (2) is in an open state, when the baffle (20) rotates into the limiting ring (16), the baffle (20) and the baffle (15) can close the corresponding end of the water distribution pipe (2), one side of the water distribution pipe (2) close to the drain pipe II (4) is opened, so that wastewater enters the detection box (5) through the drain pipe II (4), and the PLC (30) controls the water pump (7) to work, so that the water pump (7) pumps the wastewater in the detection box (5) into the wastewater treatment device again, the temperature, the turbidity and the PH value of the wastewater in the detection box (5) can be detected through the temperature sensor (27), the turbidity sensor (28) and the PH sensor (29), and the detected data are transmitted to the PLC (programmable logic controller) (30) and displayed through a display screen on the PLC (30);

s2, after the detection is qualified, the motor (22) works again at the moment, so that one side of the water distribution pipe (2) close to the second drain pipe (4) is closed, meanwhile, one side of the water distribution pipe (2) close to the first drain pipe (3) is opened, so that waste water is discharged through the first drain pipe (3), then the water inlet pipe (6) is connected with the water tank through a pump body, so that after the waste water in the detection box (5) is detected, cleaning liquid is injected into the detection box (5) through the water inlet pipe (6), the inner wall of the detection box (5) and the detection rod (13) are washed, waste water residues in the detection box (5) and on the detection rod (13) are avoided, and errors are generated when the waste water is detected again;

s3, when test bar (13) need be maintained or changed, drive horizontal pole (11) through cylinder (24) and carry out ascending rebound of vertical side, when horizontal pole (11) take place to remove, horizontal pole (11) will drive slider (26) and carry out ascending rebound of vertical side in spout (25), will drive support (12) and test bar (13) through horizontal pole (11) simultaneously and carry out ascending rebound of vertical side, thereby make test bar (13) remove outside test box (5), and then can conveniently change test bar (13).