WO2020220473A1

WO2020220473A1 - Runoff water sample collection device

Info

Publication number: WO2020220473A1
Application number: PCT/CN2019/095336
Authority: WO
Inventors: 刘伟; 张学飞; 虞文武; 陶波; 姜海军
Original assignee: 常州机电职业技术学院
Priority date: 2019-04-28
Filing date: 2019-07-25
Publication date: 2020-11-05
Also published as: CN110006708A

Abstract

A runoff water sample collection device, comprising: a sampling tank (1), a filter collection device (2) located in the sampling tank (1), a water sample loading device (3), a sampling bottle device, and a driving device (6). The water sample loading device (3) comprises a rotating bin driven by the driving device (6) to rotate, a rotating supporting polished column (32) located at the bottom of the rotating bin, and a flow guide pipe (33) connected to a water outlet (31) at the bottom of the rotating bin; the top of the rotating bin is rotatably connected to a bottom outlet of the filter collection device (2); the sampling bottle device comprises an annular supporting plate (42) sleeved on the rotating supporting polished column (32), and a plurality of sampling bottles (45) arranged on the fluid spraying circumference in the flow guide pipe (33); the sampling bottles (45) are fixed to the annular supporting plate (42). The runoff water sample collection device can filter impurities, thereby improving the sample quality, and can implement continuous sampling by means of rotation of the rotating bin and does not need manual collection, thereby making sampling more standard.

Description

Runoff water sample collection device

Technical field

The invention relates to the technical field of water sample collection, in particular to a runoff water sample collection device.

Background technique

For areas with abundant rainwater and forest resources, the water quality of forest water bodies often deteriorates. The current research believes that the main factor is that the dissolved nutrients carried by the trees converge into surface runoff under the action of rainfall, and enter the forest water body to cause pollution. Different tree species There are significant differences between them, so the study of surface runoff water samples is of great significance for subsequent water pollution control. The existing sampling devices mainly use sampling bottles for collection, and sampling and transportation rely heavily on labor, and the sampling is standardized and sample quality There are also certain problems.

Summary of the invention

In order to solve the technical problems in the prior art that sampling transportation and the like rely heavily on labor, and there are certain problems with sampling standardization and sample quality, the present invention provides a runoff water sample collection device to solve the above problems.

The technical solution adopted by the present invention to solve its technical problems is: a runoff water sample collection device, including a sampling box, a filter collection device located inside the sampling box, a water sample dispensing device, a sampling bottle device and a driving device; The filtering collection device is located at the top of the sampling box.

The water sample dispensing device includes a rotating chamber with an annular gear ring at the bottom, a rotating support light column at the bottom of the rotating chamber, and a diversion tube connected to the water outlet at the bottom of the rotating chamber. The bottom outlet of the filter collection device is rotatably connected, and a control valve is provided at the water outlet of the rotating bin.

The sampling bottle device includes a circular support plate sleeved on the rotating support light column, and a plurality of sampling bottles arranged on the fluid ejection circle in the guide tube, and the sampling bottles are fixed to the circular ring Support board.

The driving device includes a servo motor, a driving gear connected with the output shaft of the servo motor, and a bevel gear meshing with the ring gear, the bevel gear is rotated by the driving gear, and the bevel gear The rotating bin can be driven to rotate.

Further, the filter collection device includes a first filter device located at the uppermost layer and one side hinged to the sampling box, a second filter device located in the middle, and a funnel-shaped collecting tank located below the second filter device, The second filter device has filter holes smaller than the size of the filter holes of the first filter device, and the top of the rotating bin is rotatably sleeved with the bottom outlet of the funnel-shaped collecting tank.

Further, the first filter device includes a first filter plate and a plurality of cross-distributed vertical rods located above the first filter plate, and the second filter device is a second filter plate with a smaller pore size than the first filter plate. Filter plate.

Further, the sampling bottle device further includes a limit deflector that is fixedly sleeved with the rotating support light column above the support plate, and the top surface of the limit deflector is provided with a guide plate suitable for the deflector. An annular limit groove with a circular movement of the tube. The bottom surface is provided with a plurality of water outlet holes that penetrate the annular limit groove and are directly opposite to the mouth of the sampling bottle below. The mouth of the sampling bottle is connected to the limit deflector. Screw the outlet hole.

Further, the sampling bottle device further includes a lifting mechanism that is sleeved under the supporting plate and drives the supporting plate to make a vertical reciprocating movement. The middle part of the sampling bottle is a foldable bottle body, and the sampling bottle There is also a level gauge inside.

Preferably, a plurality of placing grooves suitable for placing the sampling bottle are evenly distributed on the supporting plate, and the groove depth of the placing groove is 1/2 to 2/3 of the bottle height in the normal state of the sampling bottle.

Further, the driving device further includes a plurality of transmission gears and cams, the cams are located below the movable side of the first filter plate, the top surface of the sampling box corresponds to the cam part as an elastic waterproof layer, and the cams pass through a plurality of said cams. After the transmission gear is driven, the movable side of the first filter plate is periodically raised.

Further, the runoff water sample collection device further includes U-shaped positioning rods located in the insertion channels on opposite sides of the sampling box, the bottom of the U-shaped positioning rod is tapered, and the U-shaped positioning rod is along the height direction. A fixed limit block that cannot be removed from the insertion channel and an elastic limit block that can be removed from the insertion channel are sequentially provided, and the fixed limit block is located at the U-shaped opening of the U-shaped positioning rod and the elastic Between the limit blocks.

Further, the runoff water sample collection device further includes a controller, which is respectively connected with the control valve, the liquid level gauge, the lifting mechanism and the servo motor.

Further, an annular groove is also provided around the annular limiting groove on the limiting deflector, and the bottom of the annular groove is connected to the bottom of the annular limiting groove in a net shape.

The beneficial effects of the present invention are:

(1) The runoff water sample collection device of the present invention can filter impurities, and the sample quality is higher, and continuous sampling can be realized by the rotation of the rotating bin without manual collection, and the sampling is more standardized.

(2) The runoff water sample collection device of the present invention can be connected with a controller, the operation is highly automated, and remote operation can also be realized.

(3) In the runoff water sample collection device of the present invention, the sampling box can be fixed on the soil surface by a U-shaped positioning rod, and the U-shaped positioning rod can be used as a handle. The box body is convenient for transportation, stable and reliable in structure, and The cost is lower.

Description of the drawings

The present invention will be further described with reference to the drawings and embodiments.

1 is a schematic cross-sectional view of a specific embodiment of the runoff water sample collection device according to the present invention;

2 is a schematic diagram of the structure of the first filter device in the specific embodiment of the runoff water sample collection device according to the present invention;

3 is a schematic diagram of the top view structure of the limiting deflector in the specific embodiment of the runoff water sample collection device of the present invention;

4 is a schematic diagram of the connection structure between the sampling bottle and the limiting deflector in the specific embodiment of the runoff water sample collection device of the present invention;

Fig. 5 is a schematic structural diagram of a U-shaped positioning rod in a specific embodiment of the runoff water sample collection device of the present invention.

In the figure, 1, sampling box, 2, filter collection device, 22, first filter device, 221, handle, 222, pole, 223, first filter plate, 21, second filter device, 23, funnel-shaped collecting tank , 3. Water sample dispensing device, 31, water outlet, 32, rotating support beam, 33, draft tube, 34, sealing ring, 35, ring gear, 41, limit deflector, 411, ring limit Groove, 412, annular groove, 42, support plate, 43, placement groove, 44, lifting mechanism, 45, sampling bottle, 6, driving device, 61, bevel gear, 62, driving gear, 63, transmission gear, 64, Cam, 7, U-shaped positioning rod, 71, elastic limit block, 72, fixed limit block.

Detailed ways

The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present invention, but should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "vertical", etc. are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention. The invention and simplified description do not indicate or imply that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "several" means two or more.

Embodiment 1, as shown in FIG. 1, a runoff water sample collection device, including a sampling box 1, a filtering collection device located inside the sampling box 1, a water sample dispensing device 3, a sampling bottle device, and a driving device 6.

The filtering collection device 2 is located at the top of the sampling box 1 and is used to filter the water flow and improve the quality of the sample. Specifically, the filter collection device 2 includes a first filter device 22 located on the uppermost layer and one side hinged to the sampling box 1, a second filter device 21 located in the middle, and a funnel-shaped collecting tank 23 located below the second filter device 21, The second filter device 21 has a filter hole smaller than that of the first filter device 22.

The water sample dispensing device 3 includes a rotating chamber with a ring gear 35 at the bottom, a rotating support beam 32 at the bottom of the rotating chamber, and a diversion tube 33 connected to the water outlet 31 at the bottom of the rotating chamber. The bottom outlet of the funnel-shaped collecting groove 23 can be rotated and sleeved, and the joint is provided with a sealing ring 34 to avoid overflow of water during the rotation.

The sampling bottle device includes a circular support plate 42 sleeved on the rotating support beam 32, and a number of sampling bottles 45 arranged on the fluid injection circumference in the guide tube 33, and the sampling bottles 45 are fixed on the circular support plate 42 The “fixed” can be detachable or non-detachable. In order to facilitate the removal of samples, a detachable and fixed connection method is preferred. The present invention adopts but is not limited to the following connection methods: there are several evenly distributed support plates 42 The placement tank 43 is suitable for placing the sampling bottle 45. The depth of the placement tank 43 is 1/2 to 2/3 of the height of the sampling bottle 45 in the normal state. For the sampling bottle 45 with a retractable body, the "normal" "State" means that the bottle body is in a state where the stress is minimal.

The driving device 6 includes a servo motor, a driving gear 62 connected with the output shaft of the servo motor, and a bevel gear 61 meshing with the ring gear 35. The bevel gear 61 is driven to rotate by the driving gear 62, and the bevel gear 61 can drive the rotating bin to rotate .

One side of the first filter device 22 is hinged with the sampling box 1. After sampling, turn the first filter device 22 upside down to pour out the sundries on it. Through two-stage filtration, you can filter some smaller sundries. , The second filter device 21 is directly mounted on the funnel-shaped collecting groove 23, and subsequent cleaning is very convenient. The ring gear 35 at the bottom of the rotating chamber meshes with the bevel gear 61 on the right side and rotates under the drive of a servo motor. When the ring gear 35 at the bottom of the rotating chamber rotates, the guide tube 33 can be driven to rotate accordingly, and the collected water samples are flowed into different sampling bottles 45 respectively. The water outlet 31 of the rotating chamber is provided with a control valve for After the collection is complete, close the water outlet 31 and wait for recovery.

In Embodiment 2, on the basis of Embodiment 1, as shown in FIG. 2, the first filter device 22 includes a first filter plate 223 and a plurality of cross-distributed vertical rods 222 located above the first filter plate 223. The second filter device 21 is a second filter plate with a smaller pore size than the first filter plate 223. The upright rod 222 is arranged above the first filter plate 223 to prevent the washed leaves from covering the lower filter plate, causing most of the runoff to flow directly above the sampling device. Preferably, a handle 221 is further provided on the movable side of the first filter plate 223 (that is, the right side in FIG. 2).

In Embodiment 3, in order to prevent the water sample flowing out of the diversion tube 33 from being unable to accurately enter the sampling bottle 45, on the basis of Embodiment 1 or Embodiment 2, the sampling bottle device of this embodiment further includes a sample bottle device located above the support plate 42 and The limiting deflector 41 is fixed and sleeved by the rotating support beam 32. The top surface of the limiting deflector 41 is provided with an annular limit groove 411 suitable for the circular movement of the deflector 33, and the bottom surface is provided with an annular limit groove 411 has multiple water outlet holes that penetrate and are directly opposite to the mouth of the sampling bottle 45 below. The bottle mouth of the sampling bottle 45 is screwed to the outlet hole of the limiting deflector 41. The limiting deflector 41 can be opposite to the deflector 33 The movement trajectory is accurately limited, and the water sample is accurately flowed into the sampling bottle 45 through the water outlet.

Preferably, as shown in FIG. 3, an annular groove 412 is also provided around the annular limiting groove 411 on the limiting deflector 41, the lower part of the annular groove 412 is inclined, the bottom of the annular groove 412 and the bottom of the annular limiting groove 411 The mesh connection allows the water sample flowing out of the diversion tube 33 during the displacement process to flow back into the front sampling bottle 45/rear sampling bottle 45, and at the same time, it can also play a role in slow flow to prevent the water from flowing through and overflowing into the tank. in vivo.

In Embodiment 4, on the basis of Embodiment 1 or Embodiment 2 or Embodiment 3, as shown in Figure 1 and Figure 5, the runoff water sample collection device further includes plug connectors located on opposite sides of the sampling box 1. The U-shaped positioning rod 7 in the channel, the bottom of the U-shaped positioning rod 7 is tapered, and the U-shaped positioning rod 7 is successively provided with a fixed limit block 72 that cannot be removed from the insertion channel and a removable The elastic limit block 71 of the insertion channel, and the fixed limit block 72 is located between the U-shaped opening of the U-shaped positioning rod 7 and the elastic limit block 71. The elastic limit block 71 is two V-shaped blocks connected by a spring. When the U-shaped positioning rod 7 is used as a handle to carry the sampling box 1, pull it out to the elastic limit block 71. At this time, the U-shaped positioning rod 7 The taper at the bottom is hidden in the box, and the elastic limit block 71 is stuck on the outside of the insertion channel to ensure that the bottom does not come out; when the U-shaped positioning rod 7 is used as a fixed structure, after selecting a suitable position, press down The U-shaped positioning rod 7 presses the elastic limiting block 71 into the insertion channel to fix it with the soil at the bottom to avoid displacement and the like.

In Embodiment 5, on the basis of Embodiment 2, the driving device 6 further includes a plurality of transmission gears 63 and cams 64. As shown in FIG. 1, the cam 64 is located on the movable side of the first filter plate 223, that is, the lower right position, and the sampling box 1 The part of the top surface corresponding to the cam 64 is an elastic waterproof layer. The cam 64 is driven by a plurality of transmission gears 63 to periodically lift the right side of the first filter plate 223. When the servo motor rotates, in addition to driving the bevel gear 61 to drive the rotating chamber, it can also drive the cam 64 connected by the transmission. During the periodic rotation of the cam 64, the cam 64 can lift the right of the upper first filter plate 223. When installing, the right side of the first filter plate 223 corresponds to the beginning of the water flow direction. During the periodical lifting process, the sundries on the top can be washed away by the water flow below, or gravity The function of sliding off and avoiding accumulation, the cam 64 can be set to a suitable shape according to the needs, and the second filter plate plays a full filtering role in a short time.

Preferably, the sampling bottle device further includes a lifting mechanism 44 that is sleeved under the support plate 42 and drives the support plate 42 to make a vertical reciprocating movement. As shown in FIG. 4, the middle of the sampling bottle 45 is a foldable bottle body, which passes through the bottom. The height adjustment of the support plate 42 can realize the change of the capacity, and the expansion and contraction of the lifting mechanism 44 corresponding to several sets of fixed capacities can be set according to the needs, combined with the data collected by the level gauge in the sampling bottle 45, when the sampling bottle 45 is When the bottom of the bottle is clamped with the placement groove 43, when the sampling bottle 45 is taken out, only the support plate 42 needs to be lowered, unscrew the connection between the sampling bottle 45 and the limit deflector 41, seal the bottle mouth, and lift The mechanism 44 is an existing technology, which can adopt, but is not limited to, gears and screws to drive up and down, and air cylinders to drive up and down.

Preferably, the runoff water sample collection device further includes a controller, which is respectively connected with the control valve, the level gauge, the lifting mechanism 44 and the servo motor, and can be controlled by an on-site instrument. ; Or by connecting the controller with the wireless communication module for remote control. The controller is an ordinary single-chip microcomputer, and the controller model used in this embodiment is MR-D0808-S.

When in use, the rainfall can be estimated based on weather information, experience and other information, and an appropriate sampling volume can be set. After sampling is completed, the control valve at the bottom of the rotating bin is closed and waiting for subsequent device recovery. The sampling box 1 can be opened on the side to facilitate sampling Take out the bottles 45 one by one, and seal the mouth of the sampling bottle 45 after taking it out.

In this specification, the schematic representations of the terms do not necessarily refer to the same embodiment. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments in a suitable manner.

Taking the above-mentioned ideal embodiment according to the present invention as enlightenment, through the above-mentioned description content, relevant workers can make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the content of the description, and its technical scope must be determined according to the scope of the claims.

Claims

A runoff water sample collection device, which is characterized in that it includes a sampling box (1), a filter collection device (2) located inside the sampling box (1), a water sample dispensing device (3), a sampling bottle device and a drive Device (6); The filter collection device (2) is located on the top of the sampling box (1);

The water sample dispensing device (3) includes a rotating chamber with an annular gear ring (35) at the bottom, a rotating support beam (32) at the bottom of the rotating chamber, and a water outlet (31) at the bottom of the rotating chamber. Connected with a flow guide tube (33), the top of the rotating bin is rotatably connected with the bottom outlet of the filter collection device (2), and a control valve is provided at the water outlet (31) of the rotating bin;

The sampling bottle device includes a circular support plate (42) sleeved on the rotating support light column (32), and a number of sampling bottles (45) arranged on the fluid ejection circle in the guide tube (33). ), the sampling bottle (45) is fixed on the annular support plate (42);

The driving device (6) includes a servo motor, a driving gear (62) connected with the output shaft of the servo motor, and a bevel gear (61) meshing with the ring gear (35). The bevel gear ( 61) Driven by the driving gear (62) to rotate, the bevel gear (61) can drive the rotating bin to rotate.
The runoff water sample collection device according to claim 1, characterized in that: the filter collection device (2) comprises a first filter device (22) located on the uppermost layer and hinged on one side with the sampling box (1), The second filtering device (21) located in the middle and the funnel-shaped collecting tank (23) located below the second filtering device (21), the second filtering device (21) has a filter hole smaller than the first filtering device The size of the filter hole of the device (22), the top of the rotating bin and the bottom outlet of the funnel-shaped confluence groove (23) can be rotatably sleeved.
The runoff water sample collection device according to claim 2, characterized in that: the first filter device (22) comprises a first filter plate (223) and a plurality of cross-distributions located above the first filter plate (223) The second filter device (21) is a second filter plate with a smaller pore size than the first filter plate (223).
The runoff water sample collection device according to claim 1, characterized in that: the sampling bottle device further comprises a limiting diversion device located above the support plate (42) and fixedly sleeved with the rotating support light column (32) Plate (41), the top surface of the limit deflector (41) is provided with an annular limit groove (411) suitable for the circular movement of the deflector (33), and the bottom surface is provided with an annular limit groove (411) A plurality of water outlet holes penetrating and directly opposite to the mouth of the sampling bottle (45) below, and the bottle mouth of the sampling bottle (45) is screwed to the water outlet of the limiting deflector (41).
The runoff water sample collection device according to claim 1, characterized in that: the sampling bottle device further comprises a sleeve under the support plate (42) to drive the support plate (42) to make a vertical reciprocating movement The lifting mechanism (44) of the sampling bottle (45) is a foldable bottle body in the middle, and a level gauge is also provided in the sampling bottle (45).
The runoff water sample collection device according to claim 5, characterized in that: the supporting plate (42) is evenly distributed with a plurality of placing grooves (43) suitable for placing the sampling bottles (45), and the placing grooves The depth of the groove of (43) is 1/2-2/3 of the height of the sampling bottle (45) in the normal state.
The runoff water sample collection device according to claim 2, characterized in that: the driving device (6) further comprises a plurality of transmission gears (63) and cams (64), and the cams (64) are located on the first filter plate ( 223) At the lower position of the movable side, the top surface of the sampling box (1) is an elastic waterproof layer corresponding to the cam (64). The cam (64) is periodically raised after being driven by a number of transmission gears (63). The movable side of the first filter plate (223).
The runoff water sample collection device according to claim 1, characterized in that: the runoff water sample collection device further comprises U-shaped positioning rods (7) located in the insertion channels on opposite sides of the sampling box (1) , The bottom of the U-shaped positioning rod (7) is tapered, and along the height direction, the U-shaped positioning rod (7) is also provided with a fixed limit block (72) that cannot be removed from the insertion channel and The elastic limit block (71) of the insertion channel is inserted, and the fixed limit block (72) is located between the U-shaped opening of the U-shaped positioning rod (7) and the elastic limit block (71).
The runoff water sample collection device according to claim 5, wherein the runoff water sample collection device further comprises a controller, and the controller is respectively connected to the control valve, the level gauge, and the lifting mechanism (44) And the servo motor is electrically connected.
The runoff water sample collection device according to claim 4, characterized in that: an annular groove (412) is provided around the annular limit groove (411) on the limit deflector (41), and the annular groove ( 412) The bottom part is connected to the bottom part of the annular limit groove (411) in a net shape.