Depth-setting multi-channel water sample collection device

Abstract

The utility model provides a multi-channel water sample collecting device capable of setting depth, which comprises a base, a columnar shell is upwards arranged on the base, the columnar shell comprises a lower pipe storage part and an upper filling part, an outer rotor motor is arranged in the center of the lower end in the pipe storage part, an outer rotor of the outer rotor motor is connected with a winding wheel, and the winding wheel is connected with a water outlet of the columnar shell. A water pumping pipe is wound on the winding wheel, and a weight ring is arranged at the free end of the water pumping pipe; a mounting cavity located on the inner side and an annular filling cavity located on the outer side are formed in the filling part, a water pump is mounted in the mounting cavity, the inlet end of the water pump communicates with the water pumping pipe, the outlet end of the water pump communicates with a water outlet pipe, the annular filling cavity is rotationally connected with a multi-channel rotating ring, and a plurality of limiting grooves are downwards formed in the upper end of the multi-channel rotating ring; each limiting groove is detachably connected with a sampling tube with an opening in the upper end. The sampling depth can be accurately positioned, multi-channel stratified sampling is adopted, and accurate sampling and scientific monitoring can be realized according to the depth of a water body.

Description

Technical Field

[0001] The utility model belongs to the field of surface water environment monitoring, and relates to a water sample collection device with a fixed depth and multiple channels. Background Art

[0002] In the investigation of the surface water ecological environment of rivers, lakes and reservoirs, the collection of representative water samples is an important link in pollution source treatment and surface water ecological environment monitoring, a prerequisite for revealing the physical and chemical status of river, lake and reservoir waters, and also an important starting point for analyzing the distribution, migration and transformation laws of pollutants in water bodies, evaluating the health status of water ecosystems and ensuring water ecological health. At present, the collectors for water environment samples in rivers, lakes and reservoirs mainly include portable water samplers, automatic samplers, etc. Portable water samplers are mainly used for surface water collection due to their simple structure, and it is difficult to collect stratified water samples. Automatic samplers can be preset with sampling time and sampling depth by humans and are currently mainly used in online monitoring systems. It is necessary to develop a water sample collection device with a fixed depth and multiple channels for the collection of samples from deep-water bodies and to scientifically carry out water environment quality monitoring. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a water sample collection device with a fixed depth and multiple channels, which can accurately locate the sampling depth and adopt a multi-channel stratified sampling method to help achieve accurate sampling and scientifically carry out monitoring according to the water depth.

[0004] To solve the above technical problems, the utility model provides a water sample collection device with a fixed depth and multiple channels, including a base. A columnar shell is arranged upward on the base. The columnar shell includes a storage tube part at the lower part and a perfusion part at the upper part. An outer rotor motor is installed at the center of the lower end inside the storage tube part. There is a gap between the outer rotor motor and the top of the storage tube part. The outer rotor of the outer rotor motor is connected with a wire winding wheel. The axis of the wire winding wheel is provided with a vertical rotating connecting pipe above the outer rotor motor. A water suction pipe is wound on the wire winding wheel. One end of the water suction pipe passes through the wire winding wheel and is connected and communicated with the lower end of the vertical rotating connecting pipe. A vertical water outlet is opened on the side wall of the storage tube part. The free end of the water suction pipe extends out from the vertical water outlet. A heavy object ring is arranged on the outer periphery of the free end of the water suction pipe.

[0005] An installation cavity is arranged inside the perfusion part and an annular perfusion cavity is arranged outside. A water pump is installed in the installation cavity. The inlet end of the water pump is communicated with a rotating connection sleeve extending downward into the storage pipe part. The rotating connection sleeve is rotatably connected to the upper end of the vertical rotating connection pipe. The outlet end of the water pump is communicated upward with a water outlet pipe. The bottom in the annular perfusion cavity is rotatably connected with a multi-channel rotating ring. A plurality of limiting grooves distributed in a circumferential manner are formed downward at the upper end of the multi-channel rotating ring. Each limiting groove is detachably connected with a sampling pipe with an open upper end. The open end of each sampling pipe is detachably connected with a sealing cover. The free end of the water outlet pipe is communicated with a water injection pipe corresponding to the position of the sampling pipe downward. A sampling port is arranged on one side of the perfusion part, and a cover body is detachably connected at the sampling port.

[0006] By adopting the above technical solution, when deep-water body sampling is required, first transport the sampling device to the designated sampling point by ship. Then control the outer rotor motor to drive the wire reel to rotate, so that the water suction pipe on the wire reel is released from the wire reel and the water suction pipe is put into the water and sinks under the action of the heavy object ring. When reaching the designated depth, the outer rotor motor stops working and the water pump starts to work to pump water. The water in the front section is used to rinse the pipeline and is not saved as a sample. After rinsing, open one of the sampling pipes, add water into the sampling pipe through the water injection pipe. Then the outer rotor motor works again to make the water suction pipe continue to sink. After reaching a certain depth, pump water again. Repeat the above rinsing steps and then inject water into the remaining sampling pipes. Repeat the above operation to realize the collection of water samples at different depths. After sampling is completed, the outer rotor motor rotates in the reverse direction, pulls the water suction pipe upward and gradually winds it around the wire reel to complete a lake water sampling.

[0007] The utility model is further arranged such that a length scale is arranged on the outer side of the water suction pipe along its length direction.

[0008] The utility model is further arranged such that a three-way valve is installed at the upper end of the perfusion part. The free end of the water outlet pipe is communicated with the inlet end of the three-way valve. The water injection pipe is communicated with one of the outlet ends of the three-way valve. The other outlet end of the three-way valve is communicated with a drain pipe.

[0009] The utility model is further arranged such that the three-way valve is a three-way ball valve.

[0010] The utility model is further arranged such that inner limiting rings and outer limiting rings are respectively arranged on the two inner walls of the upper part of the annular perfusion cavity. The inner limiting ring and the outer limiting ring cooperate to clamp the upper part of the sampling pipe.

[0011] The utility model is further arranged such that sliding rails cooperating with both sides of the cover body are arranged on both sides of the sampling port from top to bottom.

[0012] The present utility model is further configured such that lugs are provided on the upper edge of the cover body.

[0013] The present utility model is further configured such that a handle is provided at the upper end of the columnar housing.

[0014] The present utility model is further configured such that a winding switch for controlling the operation of the outer rotor motor and a pumping switch for controlling the operation of the water pump are provided on the outer side of the columnar housing.

[0015] The present utility model is further configured such that a power cord is connected to the outer side of the columnar housing.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] Firstly, when the present utility model conducts deep - water body sampling, it can judge the length of the water suction pipe extended according to the number of turns of the wire reel driven by the outer rotor motor, and cooperate with the scale on the water suction pipe to accurately judge the depth of the water suction pipe sinking, and can accurately reach the specified depth for water sample collection.

[0018] Secondly, the present utility model adopts the method of pumping and sampling for water sample collection, and is equipped with multiple sampling tubes. Each time the sampling depth is adjusted, the corresponding sample tube is replaced, and it is easy to realize pipeline flushing, which helps to avoid cross - contamination of stratified samples.

[0019] Thirdly, when the present utility model winds and unwinds the water suction pipe, it is all operated by the outer rotor motor without manual operation, which helps to reduce the manual work intensity.

[0020] Fourthly, the present utility model directly collects the sampling tubes uniformly inside the material device without the need for separate storage and carrying, and has higher portability. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is a schematic diagram of the overall structure of the present utility model with the cover body opened;

[0023] Figure 3 is a partial cross - sectional view for showing the internal structure of the present utility model;

[0024] Figure 4 is a partial cross - sectional view for showing the internal structure of the columnar housing.

[0025] Among them, 1. Base; 2. Columnar housing; 21. Pipe storage part; 22. Pouring part; 221. Installation cavity; 222. Annular pouring cavity; 23. Vertical outlet pipe; 24. Inner limiting ring; 25. Outer limiting ring; 26. Sampling pipe opening; 27. Slide rail; 28. Handle; 3. Outer rotor motor; 31. Wire winding wheel; 32. Vertically rotatable connecting pipe; 4. Water suction pipe; 41. Heavy object ring; 5. Water pump; 51. Rotatable connecting sleeve; 52. Water outlet pipe; 6. Multi-channel rotatable ring; 61. Limiting groove; 62. Sampling pipe; 63. Sealing cover; 7. Three-way valve; 71. Water injection pipe; 72. Drain pipe; 8. Cover body; 81. Ear; 91. Winding switch; 92. Water pumping switch; 93. Power cord. Detailed implementation mode

[0026] The following further elaborates in detail on a depth-determinable and multi-channel water sample collection device proposed by the present utility model in combination with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, only for conveniently and clearly assisting in explaining the purpose of the embodiments of the present utility model. The same or similar reference numerals in the drawings represent the same or similar components.

[0027] Example, referring to Figures 1-4 , a depth-determinable and multi-channel water sample collection device, includes a base 1. A columnar housing 2 is provided upward on the base 1. The columnar housing 2 includes a pipe storage part 21 located below and a pouring part 22 located above. A outer rotor motor 3 is installed at the center of the lower end inside the pipe storage part 21. There is a gap between the outer rotor motor 3 and the top of the pipe storage part 21. The outer rotor of the outer rotor motor 3 is connected with a wire winding wheel 31. A vertically rotatable connecting pipe 32 is provided above the axis of the wire winding wheel 31. A water suction pipe 4 is wound on the wire winding wheel 31. One end of the water suction pipe 4 passes through the wire winding wheel 31 and is connected and communicated with the lower end of the vertically rotatable connecting pipe 32. A length scale is arranged on the outer side of the water suction pipe 4 along its length direction. A vertical outlet pipe 23 is opened on the side wall of the pipe storage part 21. The free end of the water suction pipe 4 extends out from the vertical outlet pipe 23. A heavy object ring 41 is arranged on the outer periphery of the free end of the water suction pipe 4.

[0028] Inside the perfusion part 22, there is an inner installation cavity 221 and an outer annular perfusion cavity 222. Inside the installation cavity 221, a water pump 5 is installed. The inlet end of the water pump 5 is connected to a rotating connection sleeve 51 that extends downward into the storage pipe part 21. The rotating connection sleeve 51 is rotatably connected to the upper end of the vertical rotating connection pipe 32, so that during the rotation of the water suction pipe 4 with the reel 31, it can still remain connected to the water pump 5. The outlet end of the water pump 5 is connected upward to a water outlet pipe 52. At the bottom of the annular perfusion cavity 222, a multi-channel rotating ring 6 is rotatably connected. At the upper end of the multi-channel rotating ring 6, a plurality of circumferentially distributed limiting grooves 61 are opened downward. Each limiting groove 61 is detachably connected to an upper-end open sampling pipe 62. The open end of each sampling pipe 62 is detachably connected to a sealing cover 63. On the two inner walls of the upper part of the annular perfusion cavity 222, a circle of inner limiting rings 24 and a circle of outer limiting rings 25 are respectively arranged. The inner limiting ring 24 and the outer limiting ring 25 cooperate to clamp the upper part of the sampling pipe 62, so that the sampling pipe 62 can remain stable during the rotation with the multi-channel rotating ring 6.

[0029] At the upper end of the perfusion part 22, a three-way valve 7 is installed. The three-way valve 7 is a three-way ball valve. The free end of the water outlet pipe 52 is connected to the inlet end of the three-way valve 7. One outlet end of the three-way valve 7 is connected to a water injection pipe 71, and the other outlet end of the three-way valve 7 is connected to a drain pipe 72. The water injection pipe 71 is downward and corresponds to the position of the sampling pipe 62. By selecting the three-way valve 7, water flows out from the drain pipe 72 or the water injection pipe 71. The unnecessary water is discharged from the drain pipe 72, and the required sample water is injected into the sampling pipe 62 from the water injection pipe 71. On one side of the perfusion part 22, a sampling port 26 is opened. A cover body 8 is detachably connected at the sampling port 26. An ear 81 is arranged on the upper side of the cover body 8. On both sides of the sampling port 26, a slide rail 27 that cooperates with both sides of the cover body 8 is arranged from top to bottom. At the upper end of the columnar housing 2, a handle 28 is arranged. On the outer side of the columnar housing 2, a winding switch 91 for controlling the operation of the outer rotor motor 3 and a pumping switch 92 for controlling the operation of the water pump 5 are arranged. The outer side of the columnar housing 2 is connected with a power cord 93 for connecting the power supply on the ship or the portable power supply carried.

[0030] Working principle: When lake water sampling is required, first transport the sampling device to the designated location on the lake by boat. Subsequently, control the outer rotor motor 3 to drive the wire reel 31 to rotate, so that the water suction pipe 4 on the wire reel 31 is released from the wire reel 31, and the water suction pipe 4 is placed in the water and sinks under the action of the heavy object ring 41. When the designated depth is reached, the outer rotor motor 3 stops working, and the water pump 5 starts to work to pump water. The first section of the water just pumped is discarded. After pumping water for a period of time, open one of the sampling pipes 62, and add water into the sampling pipe 62 through the water injection pipe 71. Then, the outer rotor motor 3 works again to make the water suction pipe 4 continue to sink. After reaching a certain depth, pump water again. After pumping water for a period of time, inject the water into the remaining sampling pipes 62. Repeat the above operations to extract water at different depths. After the sampling is completed, the outer rotor motor 3 rotates in the reverse direction to pull the water suction pipe 4 upward and gradually wind it around the wire reel 31, completing a lake water sampling once.

[0031] It should be noted that the various embodiments in this specification are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same and similar parts among the various embodiments, reference can be made to each other.

[0032] The above description is only a description of the preferred embodiments of the present invention, and does not limit the scope of the present invention in any way. Any changes and modifications made by those of ordinary skill in the art of the present invention according to the above disclosure are within the protection scope of the claims.

Claims

1. A water sample collection device with depth determination and multiple channels, comprising a base (1), and a columnar housing (2) is arranged upward on the base (1), characterized in that: The columnar housing (2) includes a lower storage pipe portion (21) and an upper perfusion portion (22). An outer rotor motor (3) is installed at the center of the lower end inside the storage pipe portion (21). There is a gap between the outer rotor motor (3) and the top of the storage pipe portion (21). The outer rotor of the outer rotor motor (3) is connected to a wire reel (31). A vertical rotating connection pipe (32) is arranged above the axis of the wire reel (31). A water suction pipe (4) is wound around the wire reel (31). One end of the water suction pipe (4) passes through the wire reel (31) and is connected and communicated with the lower end of the vertical rotating connection pipe (32). A vertical water outlet (23) is formed on the side wall of the storage pipe portion (21). The free end of the water suction pipe (4) extends out from the vertical water outlet (23). A weight ring (41) is arranged on the outer periphery of the free end of the water suction pipe (4). An installation cavity (221) is arranged inside and an annular perfusion cavity (222) is arranged outside in the perfusion portion (22). A water pump (5) is installed in the installation cavity (221). The inlet end of the water pump (5) is communicated with a rotating connection sleeve (51) that extends downward into the storage pipe portion (21). The rotating connection sleeve (51) is rotatably connected to the upper end of the vertical rotating connection pipe (32). The outlet end of the water pump (5) is communicated upward with a water outlet pipe (52). A multi-channel rotating ring (6) is rotatably connected to the bottom inside the annular perfusion cavity (222). A plurality of circumferentially distributed limiting grooves (61) are formed in the upper end of the multi-channel rotating ring (6) and open downward. Each limiting groove (61) is detachably connected to a sampling pipe (62) with an open upper end. A sealing cover (63) is detachably connected to the open end of each sampling pipe (62). The free end of the water outlet pipe (52) is communicated with a water injection pipe (71) that is downward and corresponds to the position of the sampling pipe (62). A sampling port (26) is formed on one side of the perfusion portion (22). A cover body (8) is detachably connected to the sampling port (26).

2. The multi-channel water sample collection device capable of depth determination according to claim 1, wherein: A length scale is arranged on the outer side of the water suction pipe (4) along its length direction.

3. A depth - adjustable and multi - channel water sample collection device according to claim 1, characterized in that: A three-way valve (7) is installed at the upper end of the perfusion portion (22). The free end of the water outlet pipe (52) is communicated with the inlet end of the three-way valve (7). The water injection pipe (71) is communicated with one outlet end of the three-way valve (7). The other outlet end of the three-way valve (7) is communicated with a drain pipe (72).

4. The water sample collection device capable of depth determination and having multiple channels according to claim 3, characterized in that: The three-way valve (7) is a three-way ball valve.

5. The water sample collection device capable of determining depth and having multiple channels according to claim 1, characterized in that: Inner limiting rings (24) and outer limiting rings (25) are respectively arranged on the two inner walls of the upper part of the annular perfusion cavity (222). The inner limiting ring (24) and the outer limiting ring (25) cooperate to clamp the upper part of the sampling pipe (62).

6. The multi-channel water sample collection device capable of depth determination according to claim 1, wherein: Sliding rails (27) that cooperate with both sides of the cover body (8) are arranged on both sides of the sampling port (26) from top to bottom.

7. A depth-determinable and multi-channel water sample collection device according to claim 1, characterized in that: Lugs (81) are arranged on the upper edge of the cover body (8).

8. A multi-channel water sample collection device capable of determining depth according to claim 1, characterized in that: A handle (28) is arranged at the upper end of the columnar housing (2).

9. The water sample collection device capable of depth determination and having multiple channels according to claim 1, wherein: A winding switch (91) for controlling the operation of the outer rotor motor (3) and a pumping switch (92) for controlling the operation of the water pump (5) are provided on the outer side of the cylindrical housing (2).

10. The multi-channel water sample collection device capable of depth determination according to claim 1, wherein: A power cord (93) is connected to the outer side of the cylindrical housing (2).

Images