A water and sediment sampling device

Abstract

The present application relates to a water and sediment sampling device, which relates to the technical field of water and sediment sampling, and comprises a slide bar, on which a sediment collection component and a water collection component are detachably connected, and the sediment collection component is detachably connected to the bottom end of the slide bar. The present application has the effect of synchronously collecting water and sediment.

Description

Technical Field

[0001] The present application relates to the technical field of water body and sediment sampling, and in particular to a water body and sediment sampling device. Background Art

[0002] River sediments mainly refer to solid matter that enters the water body in various forms and eventually settles at the bottom of the water body under the action of flocculation and gravity.

[0003] At present, when sampling water bodies, a water sampler such as a bucket is thrown into the water, and after the sampler is filled with water, it is pulled up by a rope connected to the sampler; columnar sediment samplers are usually used for collecting river sediment samples, such as handheld or piston types. Columnar sediment samplers usually include a sampling tube. When sampling, the sampling tube is inserted into the sediment, and the sediment enters the sampling tube from the bottom opening of the sampling tube. After sampling, the sampling tube is pulled out from the sediment to obtain the sediment sample. However, the bottom is mostly open, which can easily damage part of the sample during the recovery process.

[0004] In the current sampling process, water and sediment samples cannot be collected synchronously. Therefore, there is an urgent need for a collection device that can collect water and sediment synchronously. Summary of the invention

[0005] In order to achieve synchronous collection of water and sediment, the present application provides a water and sediment sampling device.

[0006] The water and sediment sampling device provided in this application adopts the following technical solution:

[0007] A water body and sediment sampling device comprises a slide bar, to which a sediment collection component and a water sampling component are detachably connected, and the sediment collection component is detachably connected to the bottom end of the slide bar.

[0008] Furthermore, the sediment collection assembly includes a shell, a first collection piece for collecting sediments in water, and a second collection piece for collecting silt on the surface of underwater stones.

[0009] Furthermore, the first collecting component includes a "C"-shaped first filter, a collecting tube and a water permeable membrane. A water inlet and a water outlet are provided on the shell, and a collecting channel is connected between the water inlet and the water outlet. The first filter is arranged on the water inlet and blocks the water inlet. The input end of the collecting tube is detachably connected to the water outlet through a buckle, and the output end of the collecting tube is connected to the water permeable membrane. A telescopic piston for pushing sediment into the collecting tube and a switch valve for controlling the telescopic piston are arranged in the first filter.

[0010] Furthermore, the second collecting member includes two mechanical grippers arranged in the shell, and the ends of the two mechanical grippers are each provided with a collecting groove, and the two collecting grooves are closed together to form a collecting cavity.

[0011] Furthermore, a flow stabilizing member for adjusting the posture of the shell and a fixing member for positioning the shell in the river bottom mud are arranged in the shell.

[0012] Furthermore, the flow stabilizer includes an air bag, an air pump and an air collecting tank which are arranged in the shell from top to bottom. The air pump is used to realize the gas exchange between the air bag and the air collecting tank. A water pressure sensor for monitoring the direction of forward water flow is arranged on the side wall of the shell.

[0013] Furthermore, the fixing member includes an anchor body and a winch, the winch body and the casing are fixedly connected, and the anchor body and a steel wire rope of the winch are fixedly connected.

[0014] Furthermore, the water sampling assembly includes a sampling cylinder, a filter element arranged at the top of the sampling cylinder, and a power element arranged at the bottom of the sampling cylinder. A first filter membrane is also arranged in the sampling cylinder.

[0015] Furthermore, the filter element includes a connecting tube connected to the top of the sampling tube, a second filter screen, a third filter screen and a fourth filter screen arranged in the connecting tube, the second filter screen, the third filter screen and the fourth filter screen are distributed in sequence from top to bottom, the power part includes an air pump, a compressed gas cylinder and an air nozzle arranged at the bottom of the connecting tube, the air pump is used to draw the gas in the connecting tube into the compressed gas cylinder, the compressed gas cylinder and the air nozzle are connected by an air outlet pump, and a water sample sensor is arranged in the connecting tube.

[0016] Furthermore, it also includes a gradient water body sampling component, which includes a sampling box and a number of sampling bottles. The side wall of the sampling box is evenly provided with a number of slots for inserting the sampling bottles along the height direction. A second filter membrane is arranged inside the sampling bottle, and a fifth filter screen is arranged outside the sampling bottle.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] The sliding rod is used to connect the sediment collection component and the water collection component, so that the sediment, the water body and the gradient water body in the water body can be collected simultaneously, so as to achieve higher collection efficiency, good collection effect and save collection time and manpower.

[0019] When the water has submerged the water sample sensor for a fixed period of time, the air outlet pump starts to transport the gas in the compressed gas cylinder to the air nozzle and discharge it. At this time, the connecting tube moves toward the water surface due to buoyancy, making it easier for personnel to recover the connecting tube.

[0020] When collecting sediments, the shell may fall over due to being washed by the water flow. At this time, an air pump is used to inflate the air bag to expand the air bag, and the shell moves upward due to the buoyancy. The anchor body is lowered by a winch, and the shell uses the anchor body to anchor to the gravel on the riverbed under the lateral force of the water flow, thereby achieving a stable flow for the shell, facilitating the collection of sediments and achieving good stable flow and collection effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a water and sediment sampling device in an embodiment of the present application.

[0022] Figure 2 This is a schematic diagram of the overall results of the sediment collection assembly in the embodiment of the present application.

[0023] Figure 3 It is a schematic diagram of the overall result of the water collection component in the embodiment of the present application.

[0024] Figure 4 It is a schematic diagram of the overall results of the gradient water sampling component in the embodiment of the present application.

[0025] Description of reference numerals: 1. slide bar; 2. slot; 3. sediment collection assembly; 31. housing; 32. first collection member; 321. first filter screen; 322. collection tube; 323. water-permeable membrane; 33. second collection member; 331. mechanical gripper; 4. water collection assembly; 41. sampling cylinder; 42. filter element; 421. connecting cylinder; 422. second filter screen; 423. third filter screen; 424. fourth filter screen; 43. power member; 431. air pump; 432 , compressed gas cylinder; 433, gas nozzle; 5, gradient water body sampling assembly; 51, sampling box; 52, sampling bottle; 6, flow stabilizer; 61, air bag; 62, air pump; 63, gas collecting tank; 7, fixing part; 71, anchor body; 72, winch; 8, fifth filter; 9, connecting rope; 10, switch valve; 11, telescopic piston; 12, first filter membrane; 13, second filter membrane; 14, wire rope; 15, water sample sensor; 16, water inlet; 17, water pressure sensor. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-4 This application is described in further detail.

[0027] The embodiment of the present application discloses a water and sediment sampling device.

[0028] Reference Figure 1 A water and sediment sampling device includes a slide rod 1, on which a sediment collection component 3, a water sampling component 4 and a gradient water sampling component 5 are detachably connected, and the sediment collection component 3 is detachably connected to the bottom end of the slide rod 1.

[0029] The slide rod 1 is used to connect the sediment collection component 3, the water sampling component 4 and the gradient water body sampling component 5, so that the sediment, the water body and the gradient water body in the water body can be collected simultaneously, so as to achieve higher collection efficiency, achieve good collection effect, and save collection time and manpower.

[0030] Reference Figure 1 and Figure 2 The sediment collection assembly 3 includes a housing 31, a first collection piece 32 for collecting sediments in water, and a second collection piece 33 for collecting silt on the surface of underwater stones. A connecting rope 9 is provided on the top of the housing 31, and the connecting rope 9 passes through the slide bar 1. When the housing 31 is pushed to a specified position by the slide bar 1, the connecting rope 9 is loosened, and the housing 31 sinks in the water body. When the housing 31 needs to be recovered, the connecting rope 9 is pulled, so that the housing 31 gradually approaches the end of the slide bar 1, and the housing 31 is recovered.

[0031] The first collecting component 32 includes a first filter screen 321, a collecting tube 322 and a water permeable membrane 323. A water inlet 16 and a water outlet are provided on the shell 31. A collecting channel is provided in the shell 31 between the water inlet 16 and the water outlet. In the present embodiment, the first filter screen 321 is configured to be in a "C" shape. The first filter screen 321 is configured to be made of stainless steel. The first filter screen 321 is arranged on the water inlet 16. The first filter screen 321 wraps the water inlet 16. The input end of the collecting tube 322 is connected to the collecting channel. In the present embodiment, the collecting tube 322 is made of organic glass. The extending direction of the collecting tube 322 is arranged horizontally. A group of buckles are provided at the input end of the collecting tube 322. A card slot for the buckle to be connected is provided on the shell 31. The collecting tube 322 and the first filter screen 321 are connected through the collecting channel. The water film 323 is fixedly connected to the end of the collection tube 322 away from the first filter screen 321. The first filter screen 321 is also provided with a telescopic piston 11 for pushing sediments into the collection tube 322 and a switch valve 10 for controlling the extension and retraction of the telescopic piston 11. A rubber head is provided at the end of the telescopic piston 11. The peripheral wall of the rubber head fits the inner tube wall of the collection tube 322. The rubber head can make the sediments that first enter the collection channel and the telescopic piston 11 flow into the collection tube 322, and the excess water in the collection tube 322 flows out through the water-permeable membrane 323. When collecting sediments, water passes through the first filter screen 321 and enters between the rubber head and the collection channel. The switch valve 10 is used to control the telescopic piston 11. The telescopic piston 11 pushes the sediments into the collection tube 322, and the excess water is squeezed out of the water-permeable membrane 323.

[0032] When the sediment sample is recovered, the shell 31 is recovered. At this time, the buckles on both sides of the collection tube 322 are pressed and pushed toward the inside of the collection tube 322. The buckles are disengaged from the slots, and the sediment column core in the collection tube 322 can be taken out.

[0033] Reference Figure 2 The second collecting member 33 includes two mechanical grippers 331 arranged in the shell 31. The ends of the two mechanical grippers 331 are both provided with collecting grooves. The two collecting grooves are closed together to form a collecting cavity. The mechanical grippers 331 are used to scrape the silt on the surface of the stone.

[0034] Reference Figure 2 The shell 31 is provided with a flow stabilizing member 6 for adjusting the posture of the shell 31 and a fixing member 7 for positioning the shell 31 in the river bottom mud.

[0035] The flow stabilizer 6 includes an air bag 61, an air pump 62 and an air collecting tank 63 which are arranged in sequence from top to bottom in the shell 31. The air pump 62 is used to realize the gas exchange between the air bag 61 and the air collecting tank 63. A water pressure sensor 17 is arranged on the side wall of the shell 31; the fixing part 7 includes an anchor body 71 and a winch 72. The anchor body 71 and the wire rope 14 of the winch 72 are fixedly connected, and the winch 72 is fixedly connected to the bottom of the shell 31.

[0036] When the shell 31 is put into water, the air pump 62 is started first. The air pump 62 sends the gas in the air collecting tank 63 into the air bag 61. The air bag 61 expands and drives the shell 31 to move toward the water surface, gradually making the shell 31 move upward near one end of the air bag 61 and always remain above the anchor body 71. Then the winch 72 is started. The anchor body 71 moves to the bottom of the water body under the drive of the winch 72. As the shell 31 is affected by the water flow, the anchor body 71 moves in the water body and is stuck between the stones at the bottom of the water body, thereby achieving the positioning and stabilization of the shell 31. When it is necessary to release the clamping connection between the anchor body 71 and the stone, first use the air pump 62 to extract the gas in the airbag 61 and compress it back into the air collecting tank 63. At this time, the airbag 61 shrinks, and the shell 31 is no longer affected by the buoyancy of the airbag 61. The shell 31 is washed by water in the water flow. At this time, the mechanical gripper 331 is waved, so that the shell 31 is subjected to a force opposite to the direction of the water flow, and the shell 31 moves away from the direction of the water flow. At this time, the winch 72 is started to reel in the wire rope 14, so that the anchor body 71 is detached from the stone crevice.

[0037] Reference Figure 3The water sampling assembly 4 includes a sampling cylinder 41, a filter element 42 disposed above the sampling cylinder 41, and a power element 43 disposed below the sampling cylinder 41. A first filter membrane 12 is also disposed in the sampling cylinder 41. The filter element 42 includes a connecting cylinder 421 disposed in communication with the top of the sampling cylinder 41, a second filter screen 422, a third filter screen 423, and a fourth filter screen 424 disposed in the connecting cylinder 421. The second filter screen 422, the third filter screen 423, and the fourth filter screen 424 are sequentially distributed from top to bottom. In this embodiment, the second filter screen 422, the third filter screen 423, and the fourth filter screen 424 are all stainless steel meshes, the aperture of the second filter screen 422 is 200 μm, the aperture of the third filter screen 423 is 150 μm, and the aperture of the fourth filter screen 424 is 100 μm. The first filter membrane 12 is a 0.45-micron filter membrane. The power part 43 includes an air pump 431, a compressed gas cylinder 432 and an air nozzle 433 arranged at the bottom of the connecting tube 421. The air pump 431 is used to pump the gas in the connecting tube 421 into the compressed gas cylinder 432. The compressed gas cylinder 432 and the air nozzle 433 are connected through the air outlet pump 62. The connecting tube 421 is provided with a water sample sensor 15. The second filter screen 422, the third filter screen 423 and the fourth filter screen 424 are used to prevent the sampling tube 41 from being affected by some gravel in the water body when entering the water body for sampling. Moreover, the stainless steel filter is easy to disassemble and clean. When the water has submerged the water sample sensor 15 for a fixed period of time, the data processor in the sampling tube 41 is used to collect and process the data information transmitted by the water sample sensor 15, and the processed signal is transmitted to the controller in the sampling tube 41. The controller controls the air outlet pump 62 to start, and the air outlet pump 62 sprays the gas in the compressed gas cylinder 432 through the gas nozzle 433. The sampling tube 41 obtains an upward force, so the sampling tube 41 moves toward the water surface, providing power for recovering the sampling tube 41.

[0038] Reference Figure 4 The gradient water sampling assembly 5 includes a sampling box 51 and a plurality of sampling bottles 52. A plurality of slots 2 for inserting the sampling bottles 52 are evenly provided on the side wall of the sampling box 51 along the height direction. A second filter membrane 13 is provided in each sampling bottle 52, and a fifth filter screen 8 is provided outside the sampling bottle 52. In this embodiment, the fifth filter screen 8 is a stainless steel porous filter screen, and the second filter membrane 13 is a 0.22 micron microporous filter membrane.

[0039] The implementation principle of a water and sediment sampling device in an embodiment of the present application is: using a sliding rod 1 to connect a sediment collection component 3, a water sampling component 4 and a gradient water sampling component 5, thereby realizing simultaneous collection of sediments, water body and gradient water in the water body, achieving higher collection efficiency, achieving good collection effects, and saving collection time and manpower.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water and sediment sampling device, Features: It comprises a slide bar (1), to which a sediment collection component (3) and a water collection component (4) are detachably connected, and the sediment collection component (3) is detachably connected to the bottom end of the slide bar (1); The sediment collection assembly (3) comprises a housing (31), a first collection component (32) for collecting sediments in water, and a second collection component (33) for collecting silt on the surface of underwater stones; The first collecting member (32) comprises a "C"-shaped first filter screen (321), a collecting tube (322) and a water-permeable membrane (323); a water inlet (16) and a water outlet are provided on the shell (31); a collecting channel is provided between the water inlet (16) and the water outlet; the first filter screen (321) is provided on the water inlet (16) and blocks the water inlet (16); the input end of the collecting tube (322) is detachably connected to the water outlet via a buckle; the output end of the collecting tube (322) is connected to the water-permeable membrane (323); a telescopic piston (11) for pushing sediment into the collecting tube (322) and a switch valve (10) for controlling the telescopic piston (11) to be extended or retracted are provided in the first filter screen (321); The second collecting member (33) comprises two mechanical grippers (331) arranged in the shell (31), and the ends of the two mechanical grippers (331) are each provided with a collecting groove, and the two collecting grooves are closed together to form a collecting cavity; the mechanical grippers (331) are configured to be able to swing, so that the shell (31) located in the water is subjected to a force opposite to the direction of the water flow; The shell (31) is provided with a flow stabilizing member (6) for adjusting the posture of the shell (31) and a fixing member (7) for positioning the shell (31) in the river bottom mud; The flow stabilizing member (6) comprises an air bag (61), an air pump (62) and an air collecting tank (63) which are arranged in sequence from top to bottom in the shell (31); the air pump (62) is used to realize the exchange of gas between the air bag (61) and the air collecting tank (63); and a water pressure sensor (17) for monitoring the direction of the forward water flow is arranged on the side wall of the shell (31).

2. A water and sediment sampling device according to claim 1, Features: The fixing member (7) comprises an anchor body (71) and a winch (72); the body of the winch (72) and the casing (31) are fixedly connected; and the anchor body (71) and the steel wire rope (14) of the winch (72) are fixedly connected.

3. A water and sediment sampling device according to claim 1, Features: The water sampling assembly (4) comprises a sampling cylinder (41), a filter element (42) arranged at the top of the sampling cylinder (41), and a power element (43) arranged at the bottom of the sampling cylinder (41); a first filter membrane (12) is also arranged in the sampling cylinder (41).

4. A water and sediment sampling device according to claim 3, Features: The filter element (42) comprises a connecting tube (421) connected to the top of the sampling tube (41), a second filter screen (422), a third filter screen (423) and a fourth filter screen (424) arranged in the connecting tube (421), wherein the second filter screen (422), the third filter screen (423) and the fourth filter screen (424) are arranged in sequence from top to bottom; the power element (43) comprises an air pump (431), a compressed gas cylinder (432) and an air nozzle (433) arranged at the bottom of the connecting tube (421); the air pump (431) is used to draw the gas in the connecting tube (421) into the compressed gas cylinder (432); the compressed gas cylinder (432) and the air nozzle (433) are connected via an air outlet pump (62); and a water sample sensor (15) is arranged in the connecting tube (421).

5. A water and sediment sampling device according to claim 1, Features: The invention also comprises a gradient water body sampling component (5), wherein the gradient water body sampling component (5) comprises a sampling box (51) and a plurality of sampling bottles (52), a plurality of slots (2) for inserting the sampling bottles (52) being uniformly provided on the side wall of the sampling box (51) along the height direction, a second filter membrane (13) being arranged inside the sampling bottle (52), and a fifth filter screen (8) being arranged outside the sampling bottle (52).

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