CN216559878U

CN216559878U - Water quality sampling device for multiple parallel detection samples

Info

Publication number: CN216559878U
Application number: CN202122829795.5U
Authority: CN
Inventors: 张东亮
Original assignee: Shenyang Lvhuan Shengrui Testing Technology Co ltd
Current assignee: Shenyang Lvhuan Shengrui Testing Technology Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-05-17
Anticipated expiration: 2031-11-18

Abstract

The utility model discloses a water quality sampling device for multiple parallel detection samples, which belongs to the technical field of sampling and comprises a box body, a first rotating shaft, a conical wheel, a first bevel gear, a deflector rod, a servo motor, a second rotating shaft, a second conical gear, a third rotating shaft, a first rotating disc, a second rotating disc, a flow peristaltic pump, a water inlet pipe, a first water outlet pipe and a second water outlet pipe, wherein the flow peristaltic pump is controlled by a PLC (programmable logic controller), then the flow peristaltic pump extracts and detects water regularly and quantitatively, the servo motor is controlled by the PLC and then moves at a constant speed, the servo motor drives the first rotating disc to rotate at intervals under the interaction of the second rotating shaft, the second conical gear, the first bevel gear, the first rotating shaft, the first bevel gear, the second rotating disc and the third rotating shaft, water can be sequentially injected into a plurality of detection test tubes on the first rotating disc under the mutual matching of the flow peristaltic pump and the servo motor, manual sampling is not needed, the working efficiency is improved.

Description

Water quality sampling device for multiple parallel detection samples

Technical Field

The utility model belongs to the technical field of sampling, and particularly relates to a water quality sampling device for multiple parallel detection samples.

Background

Water is a source of life, people can not leave water in life and production activities, and the quality of drinking water is closely related to the health of people. With the development of social economy, scientific progress and improvement of the living standard of people, the requirements of people on the water quality of drinking water are continuously improved, and the water quality standard of the drinking water is correspondingly continuously developed and improved. Because the formulation of the water quality standard of the drinking water is related to various factors such as living habits, cultures, economic conditions, scientific and technical development level, water resources and the current situation of the water quality of the water resources, and the like of people, the requirements on the water quality of the drinking water are different not only among countries but also among different regions of the same country.

The drinking water mainly considers the influence on human health, and the water quality standard of the drinking water comprises physical indexes, chemical indexes and microorganism indexes; for industrial water, consideration is given to whether the product quality is affected or the containers and pipes are easily damaged.

Regardless of whether the water quality is drinking water or industrial water or the crops planted, the water quality is monitored to judge whether the water quality can meet the required standard, and a common sampling device needs to sample the same water sample for many times, so as to test and take the mean value of the water sample to judge whether the water sample is qualified, but generally needs to sample manually for many times, and is relatively troublesome.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the water quality sampling in the prior art is troublesome because the water at the same position needs to be sampled for multiple times when the water quality is sampled, the utility model provides the water quality sampling device for multiple parallel detection samples, which can realize automatic quantitative sampling for multiple times under the mutual cooperation of a flow peristaltic pump and a servo motor and improve the sampling efficiency. The specific technical scheme is as follows:

a water sampling device for multiple parallel detection samples comprises a box body, wherein a first rotating shaft is rotatably connected in the box body, a conical wheel and a first bevel gear are sequentially sleeved on the surface of the first rotating shaft from top to bottom, a shifting rod is fixedly connected at the tip end of the conical wheel, a servo motor is fixedly installed in the box body, a second rotating shaft is connected at the output shaft end of the servo motor, a second bevel gear is connected with the second rotating shaft, the second bevel gear is meshed with the first bevel gear, a third rotating shaft is rotatably connected on the box body, the upper end and the lower end of the third rotating shaft are respectively connected with a first rotating disc and a second rotating disc, a plurality of concave holes for placing detection test tubes are formed in the edge of the surface of the first rotating disc at equal intervals, shifting grooves with the same number as the concave holes are formed in the edge of the surface of the second rotating disc, the shifting grooves are movably connected with the shifting rod, arc-shaped grooves are formed in the edge of the second rotating disc and are positioned between two adjacent shifting grooves, the box body is internally provided with a flow peristaltic pump, the water inlet end of the flow peristaltic pump is connected with a water inlet pipe, the water outlet end of the flow peristaltic pump is connected with a first water outlet pipe, the first water outlet pipe is connected with a second water outlet pipe, and the water outlet end of the second water outlet pipe is opposite to the concave hole.

Preferably, the surface of the first rotating shaft and the upper part of the conical wheel are fixedly sleeved with an incomplete rotary table, the upper end of the incomplete rotary table is flush with the upper end of the second rotary table, and the radian of the periphery of the incomplete rotary table is identical to that of the arc-shaped groove.

Preferably, an eccentric wheel is fixedly sleeved on the surface of the second rotating shaft, the second water outlet pipe penetrates through the box body, the water outlet end of the second water outlet pipe is connected with a slender water outlet pipe, a third water outlet pipe is connected between the second water outlet pipe and the first water outlet pipe, and the lower end of the second water outlet pipe is provided with a notch connected with the eccentric wheel.

Preferably, the second water outlet pipe is an L-shaped pipe.

Preferably, the second water outlet pipe consists of a solid part and a hollow part.

Preferably, a bearing seat is arranged in the box body, and the second rotating shaft penetrates through the bearing seat.

Preferably, the upper wall of the interior of the box body is fixedly connected with a concave plate, and the second water outlet pipe penetrates through the concave plate.

Preferably, the water inlet end of the water inlet pipe is connected with a water inlet funnel, and the surface of the water inlet funnel is sleeved with a filter screen.

Preferably, the box body is fixedly connected to the surface of the sewage pipeline, the water inlet pipe penetrates through the sewage pipeline, and a waterproof rubber ring is connected between the sewage pipeline and the water inlet pipe.

Preferably, two ends of the third water outlet pipe are respectively in threaded connection with the surfaces of the first water outlet pipe and the second water outlet pipe.

The utility model provides a quality of water sampling device of many parallel test samples, compares with prior art, and its beneficial effect is:

1. the flow peristaltic pump of the utility model is controlled by a PLC, the detection water is extracted at regular time and quantity, a servo motor moves at constant speed under the control of the PLC, the servo motor drives a first rotary disc to rotate in a clearance manner under the interaction of a second rotary shaft, a second bevel gear, a first rotary shaft, a first bevel gear, a second rotary disc and a third rotary shaft, detection test tubes are placed in concave holes in the first rotary disc, when the concave holes in the first rotary disc move to the position below water outlets of second water outlet pipes, water is discharged from the second water outlet pipes, the detection test tubes are filled with water, after the quantitative water filling, the second water outlet pipes do not discharge water, the first rotary disc continues to rotate, adjacent concave holes rotate to the position below the water outlets of the second water outlet pipes, the second water outlet pipes are filled into the detection test tubes in adjacent concave holes again, and the rest on the same, so that a plurality of detection test tubes on the first rotary disc can be sequentially filled with water, need not artifical manual sample many times, improve work efficiency.

2. When the device is used for sampling water, the water with corrosivity can be prevented from being stuck to the hands of workers, and the hands of the workers are prevented from being damaged.

3. When the device is used for sampling water quality, the same water quantity in each detection test pipe can be ensured, the follow-up detection of the water quality is facilitated, and the detection efficiency is improved.

4. According to the utility model, the eccentric wheel is further sleeved on the surface of the second rotating shaft, and the slender water outlet pipe on the second water outlet pipe is inserted into the detection test tube when the second water outlet pipe is used for injecting water into the detection test tube through the eccentric wheel, so that splashing of water when the detection test tube is injected with water is avoided.

5. According to the utility model, the water inlet end of the water inlet pipe is connected with the water inlet funnel, the surface of the water inlet funnel is sleeved with the filtering mesh enclosure, floating objects in water can be prevented from being sucked by the flow peristaltic pump through the filtering mesh enclosure, so that the detection effect is improved, and meanwhile, the service life of the flow peristaltic pump is prolonged.

6. In order to ensure the detection precision, the utility model needs to drain the retained water in the first water outlet pipe before sampling each time, and the third water outlet pipe, the first water outlet pipe and the second water outlet pipe are in threaded connection, so that the third water outlet pipe is convenient to take down, the retained water in the first water outlet pipe is convenient to drain, and the detection precision is ensured finally.

Drawings

FIG. 1 is a schematic diagram of the internal structure of a water sampling apparatus for parallel detection of multiple samples according to the present invention;

FIG. 2 is a schematic diagram of a top view structure of a cone pulley and a second turntable of the water sampling device for multiple parallel samples;

fig. 3 is a schematic top view of a first rotary disk in the water quality sampling device for multiple parallel samples according to the present invention.

In the figure: 1-box body, 2-first rotating shaft, 3-conical wheel, 4-first bevel gear, 5-deflector rod, 6-servo motor, 7-second rotating shaft, 8-second conical gear, 9-third rotating shaft, 10-first rotating disc, 11-second rotating disc, 12-concave hole, 13-deflector groove, 14-arc groove, 15-flow peristaltic pump, 16-water inlet pipe, 17-first water outlet pipe, 18-second water outlet pipe, 19-incomplete rotating disc, 20-eccentric wheel, 21-third water outlet pipe, 22-notch, 23-bearing seat, 24-concave plate, 25-water inlet funnel and 26-sewage discharge pipeline.

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.

Example 1:

referring to fig. 1-3, the present embodiment provides a technical solution: a water quality sampling device for multiple parallel detection samples comprises a box body 1, a first rotating shaft 2 is rotatably connected inside the box body 1, a conical wheel 3 and a first bevel gear 4 are fixedly sleeved on the surface of the first rotating shaft 2 from top to bottom in sequence, a deflector rod 5 is welded at the upper end of the tip end of the conical wheel 3, a servo motor 6 is fixedly installed on the inner bottom wall of the box body 1 through bolts, the servo motor 6 is controlled by a PLC to rotate at a certain rotating speed, the output shaft end of the servo motor 6 is connected with a second rotating shaft 7, the left end of the second rotating shaft 7 is fixedly connected with a second bevel gear 8, the second bevel gear 8 is meshed with the first bevel gear 4, a third rotating shaft 9 is rotatably connected onto the box body 1, the third rotating shaft 9 is a stepped shaft, a stepped hole is formed in the upper end face of the box body 1, the third rotating shaft 9 is rotatably connected into the stepped hole, a bearing is arranged between the third rotating shaft 9 and the stepped hole, the upper end of the third rotating shaft 9 is positioned outside the box body 1, the lower end of a third rotating shaft 9 is positioned in the box body 1, a first rotating disc 10 and a second rotating disc 11 are respectively welded at the upper end and the lower end of the third rotating shaft 9, a plurality of concave holes 12 for placing detection test tubes are equidistantly arranged at the edge of the surface of the first rotating disc 10, ear supports are arranged at two sides of an opening of the upper end surface of each detection test tube, the concave holes 12 are through holes, the detection test tubes are inserted in the concave holes 12, the ear supports on the detection test tubes are lapped on the surface of the first rotating disc 10, so that the detection test tubes can be hung on the first rotating disc 10, shifting grooves 13 with the same number as the concave holes 12 are arranged at the edge of the surface of the second rotating disc 11, the shifting grooves 13 are movably connected with shifting rods 5, arc-shaped grooves 14 are arranged at the edge of the second rotating disc 11 and between two adjacent shifting grooves 13, a flow peristaltic pump 15 is fixedly installed on the inner bottom wall of the box body 1 through bolts, the flow peristaltic pump 15 is a flow pump which is manufactured by the Shanghai-Hai-Too-Chi Biotech company and has a limited brand model of V6-3L, the flow peristaltic pump 15 has a timed and quantitative liquid outlet function, liquid is discharged at a certain outflow amount and a certain interval time by controlling the flow peristaltic pump 15 through a PLC, a water inlet pipe 16 is connected to the water inlet end of the flow peristaltic pump 15, a first water outlet pipe 17 is connected to the water outlet end of the flow peristaltic pump 15, a second water outlet pipe 18 is connected to the first water outlet pipe 17, the water outlet end of the second water outlet pipe 18 is opposite to a concave hole 12, when the device is used for sampling water quality, the water inlet pipe 16 is firstly placed in a water source to be sampled, then a detection test tube is placed in the concave hole 12 on a first rotary disc 10, a servo motor 6 is started, the servo motor 6 drives a second rotary shaft 7 to rotate, the second rotary shaft 7 drives a second bevel gear 8 to rotate, the second bevel gear 8 drives a first rotary shaft 2 to rotate through a first bevel gear 4, the first rotary shaft 2 drives a bevel gear 3 to rotate, the bevel gear 3 drives a deflector rod 5 to rotate, and the deflector rod 5 extends into a deflector rod 13 at the edge of the first rotary disc 10, the deflector rod 5 is attached to the surface of the shifting groove 13 so as to drive the second rotary disc 11 to rotate, the second rotary disc 11 drives the detection test tube on the first rotary disc 10 to rotate through the third rotary shaft 9 when rotating, the deflector rod 5 drives the second rotary disc 11 to rotate for a certain distance and then is separated from the shifting groove 13 on the second rotary disc 11, the deflector rod 5 idles for a period of time under the drive of the cone pulley 3, when the deflector rod 5 is separated from the shifting groove 13, the concave hole 12 on the first rotary disc 10 moves to be right below the water outlet of the second water outlet pipe 18, the second water outlet pipe 18 discharges water, the second water outlet pipe 18 injects water into the detection test tube in the concave hole 12 during the idle time when the cone pulley 3 drives the deflector rod 5 to rotate, after the water is injected quantitatively, the second water outlet pipe 18 does not discharge water, the deflector rod 5 moves to a position close to the second rotary disc 11 again and the deflector rod 5 extends into the other shifting groove 13 on the second rotary disc 11 again, drive second carousel 11 and continue to rotate the certain distance, second carousel 11 is the rotation of intermittent type nature under the drive of driving lever 5 promptly, can drive first carousel 10 also to be interstitial rotation under the interact of second carousel 11 and third pivot 9, first carousel 10 drives a plurality of detection test tubes on its surface and stops in proper order under the delivery port of second outlet pipe 18, when the detection test tube appears under second outlet pipe 18, the detection water in the second outlet pipe 18 pours into the detection test tube in shrinkage pool 12 into promptly, thereby can add water in proper order to a plurality of detection test tubes on first carousel 10, need not artifical manual many times to take a sample, and the work efficiency is improved.

Example 2:

This example differs from example 1 in that: in order to make the concave hole 12 on the first rotating disc 10 accurately stop below the water outlet of the second water outlet pipe 18, in this embodiment, an incomplete rotating disc 19 is fixedly sleeved on the surface of the first rotating shaft 2 and above the conical wheel 3, the upper end of the incomplete rotating disc 19 is flush with the upper end of the second rotating disc 11, the outer circumference radian of the incomplete rotating disc 19 is matched with the radian of the arc-shaped groove 14, the poking rod 5 drives the second rotating disc 11 to rotate, when the poking rod 5 is separated from the poking groove 13 on the second rotating disc 11, the second rotating disc 11 can slightly rotate for a certain distance due to inertia, in order to prevent the second rotating disc 11 from rotating, the incomplete rotating disc 19 is arranged on the surface of the first rotating shaft 2, when the poking rod 5 is separated from the poking groove 13, the arc-shaped area of the incomplete rotating disc 19 rotates to the position opposite to the arc-shaped groove 14, and the incomplete rotating disc 19 rotates along the radian of the arc-shaped groove 14, and leave a small amount of clearances between incomplete carousel 19 and arc recess 14, if second carousel 11 can contact incomplete carousel 19 when continuing to rotate because of inertia this moment, incomplete carousel 19 can hinder second carousel 11 to rotate to guaranteed that shrinkage pool 12 on first carousel 10 can be accurate stop in the delivery port below of second outlet pipe 18, guaranteed then that the water in second outlet pipe 18 can all fall to examine in the test tube, avoid detecting that the position of test tube and the position of second outlet pipe 18 do not correspond and lead to the phenomenon of liquid unrestrained to take place.

In order to further improve the stability of the second water outlet pipe 18 during water injection in the test tube, an eccentric wheel 20 is fixedly sleeved on the surface of the second rotating shaft 7, the second water outlet pipe 18 penetrates through the box body 1 and can slide up and down on the box body 1, the water outlet end of the second water outlet pipe 18 is connected with a slender water outlet pipe, a third water outlet pipe 21 is connected between the second water outlet pipe 18 and the first water outlet pipe 17, the third water outlet pipe 21 is a rubber hose, the lower end of the second water outlet pipe 18 is provided with a notch 22 connected with the eccentric wheel 20, the second water outlet pipe 18 in the embodiment is a stainless steel L-shaped pipe, the second water outlet pipe 18 is composed of a solid part and a hollow part, when the eccentric wheel 20 is arranged to inject water into the test tube, the slender water outlet pipe on the second water outlet pipe 18 is inserted into the test tube, when the first rotating disc 10 rotates, the elongated outlet tube on the second outlet tube 18 is moved out of the test tube, thereby avoiding splashing of water when the test tube is filled with water.

Example 3:

In order to make the concave hole 12 on the first rotating disc 10 accurately stop below the water outlet of the second water outlet pipe 18, in this embodiment, an incomplete rotating disc 19 is fixedly sleeved on the surface of the first rotating shaft 2 and above the conical wheel 3, the upper end of the incomplete rotating disc 19 is flush with the upper end of the second rotating disc 11, the outer circumference radian of the incomplete rotating disc 19 is matched with the radian of the arc-shaped groove 14, the poking rod 5 drives the second rotating disc 11 to rotate, when the poking rod 5 is separated from the poking groove 13 on the second rotating disc 11, the second rotating disc 11 can slightly rotate for a certain distance due to inertia, in order to prevent the second rotating disc 11 from rotating, the incomplete rotating disc 19 is arranged on the surface of the first rotating shaft 2, when the poking rod 5 is separated from the poking groove 13, the arc-shaped area of the incomplete rotating disc 19 rotates to the position opposite to the arc-shaped groove 14, and the incomplete rotating disc 19 rotates along the radian of the arc-shaped groove 14, and leave a small amount of clearances between incomplete carousel 19 and arc recess 14, if second carousel 11 can contact incomplete carousel 19 when continuing to rotate because of inertia this moment, incomplete carousel 19 can hinder second carousel 11 to rotate to guaranteed that shrinkage pool 12 on first carousel 10 can be accurate stop in the delivery port below of second outlet pipe 18, guaranteed then that the water in second outlet pipe 18 can all fall to examine in the test tube, avoid detecting that the position of test tube and the position of second outlet pipe 18 do not correspond and lead to the phenomenon of liquid unrestrained to take place.

In order to further improve the stability of the second water outlet pipe 18 during water injection in the test tube, an eccentric wheel 20 is fixedly sleeved on the surface of the second rotating shaft 7, the second water outlet pipe 18 penetrates through the box body 1 and can slide up and down on the box body 1, the water outlet end of the second water outlet pipe 18 is connected with a slender water outlet pipe, a third water outlet pipe 21 is connected between the second water outlet pipe 18 and the first water outlet pipe 17, the third water outlet pipe 21 is a rubber hose, the lower end of the second water outlet pipe 18 is provided with a notch 22 connected with the eccentric wheel 20, the second water outlet pipe 18 is an L-shaped pipe made of stainless steel, the second water outlet pipe 18 consists of a solid part and a hollow part, when the second water outlet pipe 18 is used for water injection in the test tube, the slender water outlet pipe on the second water outlet pipe 18 is inserted into the test tube, when the first rotating disc 10 rotates, the slender water outlet pipe on the second water outlet pipe 18 is moved out of the test tube, thereby avoiding water splash splashing when the detection test tube is injected with water.

The present embodiment is different from

embodiments

1 and 2 in that: in order to improve the stability of the second rotating shaft 7 during rotation, in this embodiment, a bearing seat 23 is installed on the bottom wall of the interior of the box body 1, the second rotating shaft 7 penetrates through the bearing seat 23, in order to improve the stability of the second water outlet pipe 18 during up-down movement, a concave plate 24 is fixedly connected to the upper wall of the interior of the box body 1, and the second water outlet pipe 18 penetrates through the concave plate 24, so that the second water outlet pipe 18 can vertically move up and down.

The end of intaking of inlet tube 16 in this embodiment still is connected with into water funnel 25, and the surface cover of intaking funnel 25 is equipped with the filter screen panel, can prevent through setting up the filter screen panel that the floater in aquatic from being inhaled by flow peristaltic pump 15 to improve detection effect, improve flow peristaltic pump 15's life simultaneously.

Example 4:

In order to improve the stability of the second rotating shaft 7 during rotation, in this embodiment, a bearing seat 23 is installed on the bottom wall of the interior of the box body 1, the second rotating shaft 7 penetrates through the bearing seat 23, in order to improve the stability of the second water outlet pipe 18 during up-down movement, a concave plate 24 is fixedly connected to the upper wall of the interior of the box body 1, and the second water outlet pipe 18 penetrates through the concave plate 24, so that the second water outlet pipe 18 can vertically move up and down.

The end of intaking of inlet tube 16 still is connected with into water funnel 25, and the surface cover of intaking funnel 25 is equipped with the filter screen panel, can prevent through setting up the filter screen panel that the floater of aquatic from being inhaled by flow peristaltic pump 15 to improve detection effect, improve flow peristaltic pump 15's life simultaneously.

This example differs from examples 1, 2 and 3 in that: sampling device in this implementation mainly uses on the sewage pipes, and the terminal surface is the cambered surface under the box in this embodiment, with 1 fixed connection of box in this device at 26 upper surfaces of sewage pipes, at 26 drilling on the surface of sewage pipes, stretches inlet tube 16 into in the sewage pipes 26, is connected waterproof rubber ring between sewage pipes 16 and inlet tube 16, prevents that sewage pipes 16 from leaking to can carry out the sampling test to the sewage in the sewage pipes 26.

In order to ensure the detection precision, the embodiment needs to empty the stagnant water in the first water outlet pipe 17 before sampling at every time, and the third water outlet pipe 21 in the embodiment is in threaded connection with the first water outlet pipe 17 and the second water outlet pipe 18, so that the third water outlet pipe 21 can be conveniently taken down, the stagnant water in the first water outlet pipe 17 can be conveniently emptied, and the detection precision is finally ensured.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a water quality sampling device of many parallel test samples, includes box (1), its characterized in that: the detection device is characterized in that a first rotating shaft (2) is rotatably connected in the box body (1), a conical wheel (3) and a first bevel gear (4) are sequentially sleeved on the surface of the first rotating shaft (2) from top to bottom, a shift lever (5) is fixedly connected to the tip of the conical wheel (3), a servo motor (6) is fixedly installed in the box body (1), the output shaft end of the servo motor (6) is connected with a second rotating shaft (7), the second rotating shaft (7) is connected with a second bevel gear (8), the second bevel gear (8) is meshed with the first bevel gear (4), a third rotating shaft (9) is rotatably connected to the box body (1), the upper end and the lower end of the third rotating shaft (9) are respectively connected with a first rotating disc (10) and a second rotating disc (11), a plurality of concave holes (12) for placing detection test tubes are formed in the equidistant edge of the surface of the first rotating disc (10), the surperficial edge of second carousel (11) seted up with shrinkage pool (12) quantity is the same dials groove (13), dial groove (13) with driving lever (5) swing joint, the edge of second carousel (11) just is located adjacent two and dials and seted up arc recess (14) between groove (13), be equipped with flow peristaltic pump (15) in box (1), the end of intaking of flow peristaltic pump (15) is connected with inlet tube (16), and its play water end is connected with first outlet pipe (17), first outlet pipe (17) are connected with second outlet pipe (18), the play water end of second outlet pipe (18) with shrinkage pool (12) are relative.

2. The water quality sampling device for the multiple parallel detection samples according to claim 1, wherein: the surface of first pivot (2) just is located the fixed cover in top of cone pulley (3) is equipped with incomplete carousel (19), the upper end of incomplete carousel (19) with the upper end parallel and level of second carousel (11), the periphery radian of incomplete carousel (19) with the radian of arc recess (14) is identical.

3. The water quality sampling device for the multiple parallel detection samples according to claim 2, characterized in that: the surface fixing cover of second pivot (7) is equipped with eccentric wheel (20), second outlet pipe (18) run through box (1), the play water end of second outlet pipe (18) is connected with elongated type outlet pipe, second outlet pipe (18) with be connected with third outlet pipe (21) between first outlet pipe (17), the lower extreme of second outlet pipe (18) seted up one with notch (22) that eccentric wheel (20) are connected.

4. The water quality sampling device for the multiple parallel detection samples according to claim 3, wherein: the second water outlet pipe (18) is an L-shaped pipe.

5. The water quality sampling device for the multiple parallel detection samples according to claim 4, wherein: the second water outlet pipe (18) consists of a solid part and a hollow part.

6. The water quality sampling device for the multiple parallel detection samples according to claim 5, wherein: a bearing seat (23) is arranged in the box body (1), and the second rotating shaft (7) penetrates through the bearing seat (23).

7. The water quality sampling device for the multiple parallel detection samples according to claim 6, wherein: the inner upper wall of the box body (1) is fixedly connected with a concave plate (24), and the second water outlet pipe (18) penetrates through the concave plate (24).

8. The water quality sampling device for the multiple parallel detection samples according to claim 7, wherein: the water inlet end of the water inlet pipe (16) is connected with a water inlet funnel (25), and the surface of the water inlet funnel (25) is sleeved with a filter screen.

9. The water quality sampling device for the multiple parallel detection samples according to claim 8, wherein: the box (1) is fixedly connected to the surface of a sewage pipeline (26), the water inlet pipe (16) penetrates through the sewage pipeline (26), and a waterproof rubber ring is connected between the sewage pipeline (26) and the water inlet pipe (16).

10. The water quality sampling device for the multiple parallel detection samples according to claim 9, wherein: and two ends of the third water outlet pipe (21) are respectively in threaded connection with the surfaces of the first water outlet pipe (17) and the second water outlet pipe (18).