CN113029672A - A kind of water body sampling box and sampling method - Google Patents

A kind of water body sampling box and sampling method Download PDF

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Publication number
CN113029672A
CN113029672A CN202110257835.5A CN202110257835A CN113029672A CN 113029672 A CN113029672 A CN 113029672A CN 202110257835 A CN202110257835 A CN 202110257835A CN 113029672 A CN113029672 A CN 113029672A
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sampling
sampling box
handle
water
water inlet
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CN113029672B (en
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李锋
李岩
张留恩
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Sichuan Taiansheng Technology Consulting Co ltd
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Shanghai Zhonghui Water Ecological Technology Co ltd
Henan Zhonghui Environmental Protection Technology Co ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1031—Sampling from special places
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment

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Abstract

本发明公开了一种水体采样箱，包括采样箱、中间连杆和端头手柄，所述采样箱的一端转动安装有手柄接头，手柄接头外表面开设有手柄接口，中间连杆通过其前端的螺柱接头螺纹安装在手柄接口上，中间连杆背离螺柱接头的一端开设有螺丝接口，端头手柄通过前端的螺丝接头螺纹安装在螺丝接口上，所述采样箱的内部设有储样室，储样室的一端设有取样装置，储样室的另一端设有取样管；所述取样装置包括有进水管，所述进水管上捆扎有弹性软管，弹性软管可实现与进水管流体连通，所述端头手柄上焊接有圈线器，圈线器上缠绕的细绳穿过卡槽实现与弹性软管连接。本发明可实现在无动力的情况下实现对离岸较远处水体的水下取样，也可通过调节进水管进口来实现不同浓度的水层取样，方便携带、组装，采样方便。

Figure 202110257835

The invention discloses a water body sampling box, comprising a sampling box, an intermediate connecting rod and an end handle. One end of the sampling box is rotatably installed with a handle joint, the outer surface of the handle joint is provided with a handle interface, and the intermediate connecting rod passes through the front end of the handle joint. The stud joint is threadedly installed on the handle interface, the end of the intermediate link away from the stud joint is provided with a screw interface, the end handle is installed on the screw interface through the screw joint thread at the front end, and a sample storage chamber is arranged inside the sampling box One end of the sample storage chamber is provided with a sampling device, and the other end of the sample storage chamber is provided with a sampling pipe; the sampling device includes a water inlet pipe, and an elastic hose is bundled on the water inlet pipe, and the elastic hose can realize the connection with the water inlet pipe. In fluid communication, a coiler is welded on the handle of the end head, and the string wound on the coiler passes through the card slot to realize the connection with the elastic hose. The invention can realize underwater sampling of water bodies farther offshore without power, and can also realize water layer sampling of different concentrations by adjusting the inlet of the water inlet pipe, which is convenient to carry, assemble and sample.

Figure 202110257835

Description

Water body sampling box and sampling method
Technical Field
The invention relates to the technical field of water sample sampling, in particular to a water body sampling box and a sampling method.
Background
A water quality detection unit generally relates to the problem of water body sampling for detecting the water quality of rivers and lakes. The general method is that an empty bottle tied with a rope is sunk into the river bottom for sampling, and for river reach with active water flow in the water body, the mineral value ions of the water body are distributed uniformly, the water body temperature stratification is not obvious, and the sampling mode has small influence on the detection result. However, for a flat river reach, especially for a severely polluted water body, a more reliable device is needed for sampling and detecting water bodies in different water layers.
After a large number of searches, the following results are obtained: the invention has the following patent: the invention relates to a deep water sampling water temperature measuring device, which is provided with an application number (CN 201510067586.8) and a publication number (CN 105987825A), and comprises: a control panel; the motor box is connected with the control panel, and a motor, a cable reel, an air pump and a fixed pulley are arranged in the motor box; the sampling water tank is connected with the motor box through a signal line and a cylinder vent pipe, a water inlet hole and an exhaust hole are formed in the sampling water tank, a waterproof cylinder and a temperature sensor are arranged in the sampling water tank, and a water level meter is arranged on the outer side of the sampling water tank. The motor drives the cable drum and realizes the lift of sampling water tank through the fixed pulley, and sampling box internally mounted has waterproof cylinder, and surface mounting has temperature sensor, level gauge and touches end sensor, through controlling the cylinder action button on the panel, and control cylinder reciprocating motion realizes opening and closing of box inlet opening and exhaust hole to can realize deep water sampling, the quick accurate measurement of temperature.
When no bridge, trestle or ship exists on the water surface, the water sampling barrel is difficult to realize water sampling at a position far away from the shore, and the sampled water is stirred during rowing sampling; the unmanned aerial vehicle has higher sampling cost and needs to consume energy; the power sampling ship can complete the sampling task under the condition of a power source.
Disclosure of Invention
The invention aims to provide a water body sampling box and a water body sampling method, and solves the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a water body sampling box comprises a sampling box body, an intermediate connecting rod and an end handle, wherein a handle joint is rotatably arranged at one end of the sampling box body, a handle interface is arranged on the outer surface of the handle joint, the intermediate connecting rod is arranged on the handle interface through a stud joint thread at the front end of the intermediate connecting rod, so that the intermediate connecting rod is connected with the sampling box body, a screw interface is arranged at one end, deviating from the stud joint, of the intermediate connecting rod, the end handle is arranged on the screw interface through a screw joint thread at the front end, so that the end handle is connected with the intermediate connecting rod, two buoyancy tanks are filled on the upper surface inside the sampling box body and are symmetrically distributed about a central axis, a sample storage chamber is arranged inside the sampling box body, a sampling device is arranged at one end of the sample storage chamber;
the sampling device comprises a water inlet pipe arranged at the bottom of a sampling box, the water inlet pipe is in fluid communication with the sampling box, a cavity is arranged at the communication position of the sampling box and the water inlet pipe, a top baffle is arranged on the upper surface of the cavity, a circular organic glass sheet is arranged in the cavity, a rubber gasket is attached to the surface, close to the water inlet pipe, of the circular organic glass sheet, an elastic hose is bundled on the water inlet pipe, the elastic hose can be in fluid communication with the water inlet pipe, and a plumb bob is bundled at the front end of the;
the welding has the circle line ware on the end handle, the sampling box surface is equipped with the draw-in groove, and the last winding string of circle line ware passes the draw-in groove and realizes being connected with elastic hose.
Preferably, the end of the end handle, which is far away from the screw joint, is sleeved with a handrail sleeve.
Preferably, the lifting handle is assembled on the upper surface of the sampling box in a pressing mode, the exhaust hole pipe is formed in the upper surface of the sampling box, and the exhaust hole pipe can achieve gas circulation with the sample storage chamber.
Preferably, tweezers are clamped on the sampling tube, and the tweezers can realize sealed clamping of the sampling tube.
Preferably, the following components: two symmetrically distributed positioning rope holes are welded on the sampling box, and positioning ropes are bound on the positioning rope holes.
A water body shoreside sampling method is characterized in that: the method comprises the following steps:
s1: and tying a positioning rope on the positioning rope hole, and setting the length of the elastic hose according to the depth of the sampling layer.
S2: connecting the middle connecting rods to the handle joints on the sampling box, then screwing, determining the number of the middle connecting rods according to the distance between the sampling points and the shore, and connecting the end head handle at the tail end.
S3: and rotating the wire coiling device to tightly connect the thin rope tied on the elastic hose at the water inlet so that the elastic hose enters the clamping groove and is bent, the inner walls of the bent elastic hoses are tightly close to each other, the connection of the elastic hoses is interrupted, and the wire coiling device is fixed.
S4: in a flowing water body, two persons are matched, one person pulls the positioning rope, and the other person grasps the end handle by hand to convey the sampling box away from the bank; the sampling operation can be completed by one person in still water.
S5: after the sampling box arrives at the set sampling position, the coiler is loosened, the string connected with the elastic hose of the water inlet is straightened under the action of the gravity of the plumb bob, and meanwhile, the sampling port of the elastic hose reaches the depth of the sampling position.
S6: under the action of gravity of sampling box self, water gets into the inlet tube from water inlet elastic hose sample connection, and rivers jack-up circular organic glass piece gets into the storage appearance room, and circular organic glass piece makes water only can flow in the storage appearance room, and can not reverse outflow.
S7: when the whole buoyancy and gravity of the sampling box are balanced, water can not enter the sample storage chamber any more.
S8: and rotating the winding device to tighten the string connected with the elastic hose of the water inlet, so that the elastic hose of the water inlet enters the clamping groove and is bent, the water inlet is sealed, and the winding device is fixed.
S9: and meanwhile, the middle connecting rod and the positioning rope are withdrawn, the sampling box is pulled to the bank side, the middle connecting rod is disassembled, the sampling box is lifted, the sampling tube is opened, and the water sample is transferred to the prepared sampling bottle to finish sampling.
Compared with the prior art, the invention has the following beneficial effects:
the water body sampling box can realize underwater sampling of water bodies far off the shore under the unpowered condition, has small stirring to the original water body, is convenient to carry and assemble, is convenient to sample, and is suitable for drift sampling of lakes or small flow velocity; the water sampling is realized by increasing and decreasing the assembly of the middle connecting rod, and meanwhile, the water sampling device has the advantages that the water quality requiring depth can be positioned and sampled by arranging the elastic hose.
Drawings
FIG. 1 is a schematic diagram of a sampling state structure according to the present invention;
FIG. 2 is a schematic view of the structure of the elastic hose according to the present invention in a contracted state;
FIG. 3 is a schematic view of a sampling device according to the present invention;
FIG. 4 is a schematic view of a top baffle of the present invention;
FIG. 5 is a schematic view of the positioning hole of the present invention;
FIG. 6 is a sample schematic of the present invention.
In the figure: 1. positioning the rope; 2. a sampling box; 3. a string; 4. a middle connecting rod; 5. a tip handle; 6. a wire coiling device; 7. a buoyancy tank; 8. a handle; 9. an exhaust hole pipe; 10. a handle joint; 11. a handle interface; 12. a screw interface; 13. a screw joint; 14. a handrail sleeve; 15. a sampling tube; 16. tweezers; 17. a sample storage chamber; 18. a plumb bob; 19. an elastic hose; 20. a sampling device; 21. a card slot; 22. a rubber gasket; 23. a top baffle; 24. a circular organic glass sheet; 25. a water inlet pipe; 26. and positioning the rope hole.
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 to 6, the present invention provides a water sampling box and a sampling method, wherein the sampling box comprises: the utility model provides a water sampling box, including sampling box 2, middle connecting rod 4 and end handle 5, sampling box 2's one end is rotated and is installed handle joint 10, handle joint 10 surface has been seted up handle interface 11, middle connecting rod 4 is installed on handle interface 11 through the double-screw bolt joint screw thread of its front end, realize being connected of middle connecting rod 4 and sampling box 2, middle connecting rod 4 deviates from the one end that the double-screw bolt connects and has been seted up screw interface 12, end handle 5 is installed on screw interface 12 through the screw joint 13 screw thread of front end, realize being connected of end handle 5 and middle connecting rod 4, the inside last surface packing of sampling box 2 has two flotation pontoons 7, two flotation pontoons 7 are about the central axis symmetric distribution, sampling box 2's inside is equipped with stores up appearance room 17, the one end that stores up appearance room 17 is equipped with sampling device 20, the other end that stores up.
Sampling device 20 is including seting up the inlet tube 25 in sampling box 2 bottoms, inlet tube 25 realizes fluid intercommunication with sampling box 2, intercommunication department at sampling box 2 and inlet tube 25 is equipped with the cavity, surface mounting has overhead gage 23 on the cavity, be equipped with circular organic glass piece 24 in the cavity, circular organic glass piece 24 has rubber gasket 22 near inlet tube 25's surface laminating, flexible hose 19 is tied up on the inlet tube 25, flexible hose 19 can realize with inlet tube 25 fluid intercommunication, flexible hose 19's front end is binded plumb 18.
The end handle 5 is welded with the wire coiling device 6, the surface of the sampling box 2 is provided with a clamping groove 21, and the thin rope 3 wound on the wire coiling device 6 passes through the clamping groove 21 to be connected with the elastic hose 19.
In the specific embodiment of the present invention, a glove holder 14 is further sleeved on an end of the end handle 5 facing away from the screw joint 13.
In the embodiment of the invention, further, a handle 8 is assembled on the upper surface of the sampling box 2 in a pressing manner, and an exhaust hole pipe 9 is arranged on the upper surface of the sampling box 2, so that the exhaust hole pipe 9 can realize gas circulation with the sample storage chamber 17.
According to the specific embodiment of the invention, the sampling tube 15 is clamped with the tweezers 16, and the tweezers 16 can realize sealed clamping of the sampling tube 15.
In the specific implementation mode of the invention, two symmetrically distributed positioning rope holes 26 are welded on the sampling box 2, and the positioning ropes 1 are bound on the positioning rope holes 26.
A water body shoreside sampling method comprises the following steps:
s1: the positioning rope 1 is tied on the positioning rope hole 26, and the length of the elastic hose 19 is set according to the depth of the sampling layer.
S2: the middle connecting rods 4 are connected to the handle joints 10 on the sampling box 2, then the middle connecting rods 4 are screwed tightly, the number of the middle connecting rods 4 is determined according to the distance between the sampling points and the shore, and the tail ends of the middle connecting rods 4 are connected with the end head handles 5.
S3: and (3) rotating the wire coiler 6 to connect the thin rope tied on the elastic hose 19 at the water inlet tightly, so that the elastic hose 19 enters the clamping groove 21 and is bent, the inner walls of the bent elastic hose 19 are close to each other, the connectivity of the elastic hose 19 is interrupted, and the wire coiler 6 is fixed.
S4: in the flowing water body, two people cooperate, alone pull the location rope 1, alone hold in hand the end handle 5, send sampling box 2 off bank, alone operate and can accomplish the sampling operation in still water.
S5: when the sampling box 2 passes a set sampling position, the wire coiling device 6 is loosened, the thin rope 3 connected with the elastic hose 19 at the water inlet is straightened under the action of the gravity of the plumb 18, and meanwhile, the sampling port of the elastic hose 19 reaches the depth of the sampling position.
S6: under the action of gravity of sampling box 2 self, water gets into inlet tube 25 from 19 sample connection on the water inlet elastic hose, and rivers are with 24 jack-ups of circular organic glass piece, get into storage appearance room 17, and circular organic glass piece 24 makes water can only flow into storage appearance room 17, and can not reverse outflow.
S7: when the overall buoyancy and gravity of the sampling chamber 2 are balanced, water will no longer enter the sample storage chamber 17.
S8: and rotating the coiler 6, tightening the string connected with the elastic hose 19 at the water inlet, enabling the elastic hose 19 to enter the clamping groove 21 and bend, sealing the water inlet, and fixing the coiler 6.
S9: withdraw middle connecting rod 4 and location rope 1 simultaneously, pull sampling box 2 to the bank, dismantle middle connecting rod 4, mention sampling box 2, open sampling tube 15, accomplish the sampling in transferring the water sample to the sampling bottle that is ready.
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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1.一种水体采样箱，包括采样箱(2)、中间连杆(4)和端头手柄(5)，所述采样箱(2)的一端转动安装有手柄接头(10)，手柄接头(10)外表面开设有手柄接口(11)，所述中间连杆(4)通过其前端的螺柱接头螺纹安装在手柄接口(11)上，实现中间连杆(4)与采样箱(2)的连接，中间连杆(4)背离螺柱接头的一端开设有螺丝接口(12)，所述端头手柄(5)通过前端的螺丝接头(13)螺纹安装在螺丝接口(12)上，实现端头手柄(5)与中间连杆(4)的连接，其特征在于：所述采样箱(2)内部上表面填充有两个浮箱(7)，两个浮箱(7)关于中心轴线对称分布，所述采样箱(2)的内部设有储样室(17)，储样室(17)的一端设有取样装置(20)，储样室(17)的另一端设有取样管(15)；1. A water body sampling box, comprising a sampling box (2), an intermediate connecting rod (4) and an end handle (5), one end of the sampling box (2) is rotatably installed with a handle joint (10), and the handle joint ( 10) A handle interface (11) is provided on the outer surface, and the intermediate connecting rod (4) is threadedly mounted on the handle interface (11) through the stud joint at the front end thereof, so as to realize the connection between the intermediate connecting rod (4) and the sampling box (2) The end of the intermediate connecting rod (4) away from the stud joint is provided with a screw interface (12), and the end handle (5) is threadedly mounted on the screw interface (12) through the screw joint (13) at the front end to realize The connection between the end handle (5) and the intermediate connecting rod (4) is characterized in that: the inner upper surface of the sampling box (2) is filled with two floating boxes (7), and the two floating boxes (7) are about the central axis Symmetrical distribution, the sampling box (2) is provided with a sample storage chamber (17) inside, one end of the sample storage chamber (17) is provided with a sampling device (20), and the other end of the sample storage chamber (17) is provided with a sampling pipe (15); 所述取样装置(20)包括有开设在采样箱(2)底部的进水管(25)，进水管(25)与采样箱(2)实现流体连通，在采样箱(2)与进水管(25)的连通处设有空腔，空腔上表面安装有顶部挡板(23)，空腔内设有圆形有机玻璃片(24)，圆形有机玻璃片(24)靠近进水管(25)的表面贴合有橡胶垫圈(22)，所述进水管(25)上捆扎有弹性软管(19)，弹性软管(19)可实现与进水管(25)流体连通，弹性软管(19)的前端捆绑有铅锤(18)；The sampling device (20) includes a water inlet pipe (25) provided at the bottom of the sampling box (2), the water inlet pipe (25) is in fluid communication with the sampling box (2), and the water inlet pipe (25) is in fluid communication between the sampling box (2) and the water inlet pipe (25). ) is provided with a cavity, a top baffle plate (23) is installed on the upper surface of the cavity, a circular plexiglass sheet (24) is arranged in the cavity, and the circular plexiglass sheet (24) is close to the water inlet pipe (25) A rubber gasket (22) is attached to the surface of the water inlet pipe (25), an elastic hose (19) is bundled on the water inlet pipe (25), the elastic hose (19) can realize fluid communication with the water inlet pipe (25), and the elastic hose (19) ) is tied with a plumb bob (18) at the front end; 所述端头手柄(5)上焊接有圈线器(6)，所述采样箱(2)表面设有卡槽(21)，圈线器(6)上缠绕的细绳(3)穿过卡槽(21)实现与弹性软管(19)连接。A coiler (6) is welded on the end handle (5), a slot (21) is provided on the surface of the sampling box (2), and the string (3) wound on the coiler (6) passes through The snap groove (21) is connected with the elastic hose (19). 2.根据权利要求1所述的一种水体采样箱，其特征在于：所述端头手柄(5)上背离螺丝接头(13)的一端套装有扶手套(14)。2 . The water sampling box according to claim 1 , wherein the end of the end handle ( 5 ) away from the screw joint ( 13 ) is sleeved with a handrail cover ( 14 ). 3 . 3.根据权利要求1所述的一种水体采样箱，其特征在于：所述采样箱(2)的上表面压配组装有提手(8)，且采样箱(2)的上表面开设有排气孔管(9)，排气孔管(9)可实现与储样室(17)气体流通。3. A water body sampling box according to claim 1, characterized in that: the upper surface of the sampling box (2) is press-fitted with a handle (8), and the upper surface of the sampling box (2) is provided with The exhaust hole pipe (9) can realize gas communication with the sample storage chamber (17). 4.根据权利要求1所述的一种水体采样箱，其特征在于：所述取样管(15)上夹持有镊子(16)，镊子(16)可实现对取样管(15)进行密封夹持。The water sampling box according to claim 1, characterized in that: the sampling tube (15) is clamped with tweezers (16), and the tweezers (16) can seal the sampling tube (15). hold. 5.根据权利要求1所述的一种水体采样箱，其特征在于：所述采样箱(2)上焊接有两个对称分布的定位绳孔(26)，定位绳孔(26)上捆绑有定位绳(1)。5. A water body sampling box according to claim 1, characterized in that: the sampling box (2) is welded with two symmetrically distributed positioning rope holes (26), and the positioning rope holes (26) are bundled with Positioning rope (1). 6.一种水体岸边采样方法，其特征在于：包括如下步骤：6. a water body bank sampling method, is characterized in that: comprise the steps: S1：将定位绳(1)系在定位绳孔(26)上，根据采样层深度设置弹性软管(19)的长度；S1: Tie the positioning rope (1) on the positioning rope hole (26), and set the length of the elastic hose (19) according to the depth of the sampling layer; S2：将中间连杆(4)连接在采样箱(2)上的手柄接头(10)，接着,拧紧，根据采样点离岸边的距离确定中间连杆(4)的数量，在(4)末端连接端头手柄(5)；S2: Connect the intermediate connecting rod (4) to the handle joint (10) on the sampling box (2), then tighten it, and determine the number of intermediate connecting rods (4) according to the distance from the sampling point to the shore, at (4) The end is connected to the end handle (5); S3：旋转圈线器(6)，将系在进水口弹性软管(19)上的细绳接紧，使弹性软管(19)进入卡槽(21)并发生弯折，发生弯折的弹性软管(19)内壁紧靠在一起，弹性软管(19)的连通性中断，将圈线器(6)固定；S3: Rotate the coiler (6), and fasten the string tied to the elastic hose (19) of the water inlet, so that the elastic hose (19) enters the slot (21) and bends, and the bending occurs. The inner walls of the elastic hose (19) are abutted together, the connectivity of the elastic hose (19) is interrupted, and the coiler (6) is fixed; S4：在流动水体中，两人配合，一人拉定位绳(1)，一人手抓端头手柄(5)，将采样箱(2)送离岸边，在静水中一人操作即可完成取样操作；S4: In a flowing water body, two people cooperate, one person pulls the positioning rope (1), one person grabs the end handle (5), and sends the sampling box (2) away from the shore, and one person can complete the sampling operation in still water. ; S5：当采样箱(2)到过既定采样位置后，放松圈线器(6)，连接进水口弹性软管(19)的细绳(3)在铅锤(18)的重力作用下，弹性软管(19)被拉直，同时弹性软管(19)的采样口达到采样位置深度；S5: When the sampling box (2) reaches the predetermined sampling position, loosen the coiler (6), and the string (3) connected to the elastic hose (19) of the water inlet is elastically stretched under the gravity of the plumb bob (18). The hose (19) is straightened, and at the same time the sampling port of the elastic hose (19) reaches the depth of the sampling position; S6：在采样箱(2)自身的重力作用下，水从进水口弹性软管(19采样)口进入进水管(25)，水流将圆形有机玻璃片(24)顶起，进入储样室(17)，圆形有机玻璃片(24)使得水只能流入储样室(17)，而不能逆向流出；S6: Under the gravity of the sampling box (2), the water enters the water inlet pipe (25) from the elastic hose (19 sampling) of the water inlet, and the water flow pushes up the circular plexiglass sheet (24) and enters the sample storage chamber (17), the circular plexiglass sheet (24) makes the water only flow into the sample storage chamber (17), but cannot flow out in the reverse direction; S7：当采样箱(2)整体浮力和重力平衡时，水将不再进入储样室(17)；S7: When the overall buoyancy and gravity of the sampling box (2) are balanced, the water will no longer enter the storage chamber (17); S8：旋转圈线器(6)，将连接进水口弹性软管(19)的细绳收紧，使进水弹性软管(19)进入卡槽(21)并发生弯折，将进水口封闭，将圈线器(6)固定；S8: Rotate the coiler (6) to tighten the string connecting the elastic hose (19) of the water inlet, so that the elastic hose (19) of the water inlet enters the slot (21) and bends to close the water inlet , and fix the coiler (6); S9：同时收回中间连杆(4)和定位绳(1)，将采样箱(2)拉至岸边，将中间连杆(4)拆卸，提起采样箱(2)，打开取样管(15)，将水样转移至准备好的采样瓶中完成采样。S9: Retract the intermediate connecting rod (4) and the positioning rope (1) at the same time, pull the sampling box (2) to the shore, disassemble the intermediate connecting rod (4), lift the sampling box (2), and open the sampling pipe (15) , transfer the water sample to the prepared sampling bottle to complete the sampling.
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