CN220399016U - Water resource sampling device - Google Patents

Abstract

The application provides a water resource sampling device relates to water quality testing equipment field. It comprises the following steps: the device comprises a mounting seat, a support column, a suspension part, an annular sampling box, an annular moving block and a driving unit, wherein one end of the support column is connected with the mounting seat, the other end of the support column is connected with the suspension part, the annular sampling box is sleeved on the support column, the annular moving block is sleeved on the annular sampling box, and the driving unit is connected with the annular moving block and is suitable for driving the annular moving block to move along the length direction of the support column; the inside of annular sampling box is equipped with a plurality of relatively independent water storage chamber along its length direction, all is equipped with water inlet and gas outlet on the lateral wall of each water storage chamber, is equipped with the water inlet control valve on the water inlet, is equipped with the gas outlet control valve on the gas outlet, and water inlet control valve and gas outlet control valve all are configured to open when supporting with annular movable block and paste, make water storage chamber and external intercommunication. The depth interval sampling method has the effect that the depth interval of sampling can be wider.

Description

Water resource sampling device

Technical Field

The application relates to the field of water quality detection equipment, in particular to a water resource sampling device.

Background

The water body needs to be sampled before the detection and analysis of the water body are carried out, and a water resource sampling device is needed for water body sampling.

The water sample for analysis should be representative to reflect the chemical composition and characteristics of the water body, and generally, when the water body is sampled, the water sample needs to be sampled at different depths of the water body so as to explore the water quality condition at different depths of the water body.

The Chinese patent with the bulletin number of CN219015765U discloses a water resource sampling device, which comprises a sampling barrel and a protective sleeve, wherein the sampling barrel is sleeved in the protective sleeve and is provided with a plurality of water storage cavities along the height direction of the sampling barrel, each water storage cavity is provided with a water inlet hole and a water outlet hole, a one-way valve is arranged in each water outlet hole, and through holes corresponding to the water inlet holes and the water outlet holes are formed in the protective sleeve. When needs are gathered, rotatory mounting cylinder is in order to make inlet port and venthole and the through-hole alignment that corresponds to make the water of different degree of depth can flow into different water storage intracavity through the inlet port that corresponds the height, and then can realize gathering the operation in the same time of the water sample of different degree of depth. However, the depth interval of the water sample collected by the device depends on the length of the sampling cylinder, so that when the depth interval of the water sample to be collected is larger than the length of the sampling cylinder, the sampling cylinder cannot be utilized to realize disposable water collection.

In view of this, it is desirable to provide a water resource sampling device.

Disclosure of Invention

In order to solve the problem that the water sample with a wider depth interval is difficult to collect, the application provides a water resource sampling device.

The application provides a water resource sampling device, adopts following technical scheme: the device comprises a mounting seat, a support column, a hanging part, an annular sampling box, an annular moving block and a driving unit, wherein one end of the support column is connected with the mounting seat, the other end of the support column is connected with the hanging part, the annular sampling box is sleeved on the support column, the annular moving block is sleeved on the annular sampling box, and the driving unit is connected with the annular moving block and is suitable for driving the annular moving block to move along the length direction of the support column; the inside of annular sampling box is equipped with a plurality of relatively independent water storage chamber along its length direction, each be equipped with water inlet and gas outlet on the lateral wall of water storage chamber, be equipped with the water inlet control valve on the water inlet, be equipped with the gas outlet control valve on the gas outlet, the water inlet control valve with the gas outlet control valve all is configured to open when supporting with annular movable block and pastes, makes the water storage chamber communicates with the external world.

By adopting the technical scheme, the suspension part is held to suspend the device at the depth to be sampled, and the driving unit is controlled to drive the annular moving block to be close to the water storage cavity to be opened, so that the annular moving block is abutted against the air outlet control valve and the water inlet control valve, external water enters the water storage cavity through the water inlet, and air in the water storage cavity is discharged through the air outlet, thereby realizing the sampling operation of the water body at the depth; after the sampling of the water body with the depth is finished, the driving unit is controlled to drive the annular moving block to be far away from the air outlet control valve and the water inlet control valve, so that the air outlet and the water inlet are in a closed state, a water sample in the water storage cavity is isolated from the outside, and therefore, when the depth of the device is changed, the water sample is not easy to be mixed with water outside the water storage cavity to cause pollution, and an error occurs in a detection result; after the sampling of this degree of depth is accomplished, can stimulate the suspension element in order to remove this device to next sampling depth department, the water storage chamber that the next unopened of reselection and repeat the aforesaid sampling operation to can realize once only sampling the water sample of different degree of depth, and the degree of depth interval of sampling is big.

Specifically, the water inlet control valve comprises a water inlet valve base, a plurality of water inlet valve connecting columns, a water inlet valve movable block and a water inlet valve spring; one end of each water inlet valve connecting column is connected with the side wall of the water storage cavity, and the other end of each water inlet valve connecting column extends into the water storage cavity and is connected with the water inlet valve base; the water inlet valve movable block is arranged between the side wall of the water storage cavity and the water inlet valve base, a water inlet valve protrusion is arranged on the water inlet valve movable block, a water inlet valve flange seat is arranged on the water inlet valve movable block, which is far away from the water inlet, a water inlet valve spring is arranged between the water inlet valve movable block and the water inlet valve base, the water inlet valve spring is a precompression spring so as to apply thrust towards the water inlet valve movable block, the water inlet valve protrusion can penetrate through the annular sampling box from the water inlet, the water inlet valve flange seat can be abutted against the side wall of the water storage cavity, and a water inlet sealing piece is arranged between the water inlet valve flange seat and the side wall of the water storage cavity; a water passing gap is formed between the water inlet valve protruding part and the inner wall of the water inlet.

By adopting the technical scheme, the water inlet valve spring is arranged to enable the water inlet valve flange seat to be abutted against the side wall of the water storage cavity, and the water inlet sealing piece arranged between the water inlet valve flange seat and the side wall of the water storage cavity can improve the sealing property between the water inlet valve flange seat and the side wall of the water storage cavity, so that water in the water passing gap is not easy to enter the water storage cavity, and the inside of the water storage cavity is isolated from the outside; the water inlet valve protrusion part is pressed towards the water inlet valve base by the annular moving block abutted against the water inlet valve protrusion part, so that the water inlet valve flange base is far away from the side wall of the water storage cavity and forms a gap, water in the water through gap can enter the water storage cavity through the gap, and further the collection operation of an external water sample can be realized.

Further, the part of the inlet valve protrusion protruding out of the annular sampling box from the water inlet is of a hemispherical structure protruding away from the inlet valve base.

By adopting the technical scheme, the annular moving block can conveniently press the protruding part of the water inlet valve into the water inlet so as to open the water inlet and enable external water to enter the water storage cavity.

Specifically, the air outlet control valve comprises an air outlet valve base, a plurality of air outlet valve connecting columns, an air outlet valve movable block and an air outlet valve spring; one end of each air outlet valve connecting column is connected with the side wall of the water storage cavity, and the other end of each air outlet valve connecting column extends into the water storage cavity and is connected with the air outlet valve base; the air outlet valve movable block is arranged between the side wall of the air storage cavity and the air outlet valve base, an air outlet valve protruding part is arranged at the part, close to the air outlet, of the air outlet valve movable block, an air outlet valve flange seat is arranged at the part, far away from the air outlet, of the air outlet valve movable block, the air outlet valve spring is arranged between the air outlet valve movable block and the air outlet valve base, the air outlet valve spring is a precompression spring, so that thrust towards the air outlet port can be applied to the air outlet valve movable block, the air outlet valve protruding part can penetrate through the annular sampling box from the air outlet port, the air outlet valve flange seat can be abutted against the side wall of the air storage cavity, and an air outlet sealing piece is arranged between the air outlet valve flange seat and the side wall of the air storage cavity; and a ventilation gap is formed between the air outlet valve protruding part and the inner wall of the air outlet.

By adopting the technical scheme, the air outlet valve spring is arranged, so that the air outlet valve flange seat can be abutted against the side wall of the water storage cavity to seal the air outlet, and the inside of the water storage cavity is isolated from the outside; the air outlet valve protruding portion can be pressed towards the air outlet valve base by the annular moving block abutted against the air outlet valve protruding portion, so that the air outlet valve flange seat is separated from the side wall of the water storage cavity, a gap is formed, air in the water storage cavity can enter the outside through the ventilation gap and the gap, and the speed of collecting water samples in the water storage cavity can be improved.

Further, the part of the air outlet valve protruding part extending out of the annular sampling box from the air outlet is of a hemispherical structure protruding towards the direction away from the air outlet valve base.

Through adopting above-mentioned technical scheme, can be convenient for annular movable block with the air outlet valve protruding portion impress in the gas outlet to open the gas outlet and make the air in the water storage chamber get into the external world.

Specifically, the vertical height of the air outlet on the same water storage cavity is higher than the vertical height of the water inlet, the annular moving block is provided with an air outlet abutting part matched with the air outlet control valve and a water inlet abutting part matched with the water inlet control valve, and when the water inlet abutting part abuts against the water inlet control valve, the air outlet abutting part abuts against the corresponding air outlet control valve, and the water inlet and the air outlet connected with the same water storage cavity are simultaneously opened.

Through adopting above-mentioned technical scheme for the water storage chamber when gathering the water sample, external water can get into the water storage chamber through the water inlet, and the air of intracavity then can get into the external through the gas outlet, thereby makes the air in the water storage chamber be difficult for blockking external water and gets into in the water storage chamber, thereby can improve the sampling rate of water storage chamber.

Specifically, the drive unit is including locating a plurality of pneumatic cylinders on the mount pad, a plurality of the pneumatic cylinders winds the equidistant setting of support column, the piston rod of pneumatic cylinder with annular movable block is connected, the cylinder body of pneumatic cylinder with the mount pad is connected, the winding has the infusion hose on the suspension element, the one end and the hydraulic pump of infusion hose are connected, the other end of infusion hose is equipped with the branch liquid valve, be connected with many branch liquid pipes on the branch liquid valve, each divide liquid pipe and correspond the pneumatic cylinder is connected.

By adopting the technical scheme, the symmetrically designed hydraulic cylinders can ensure that the device is not easy to incline when suspended in the water body, and further can avoid the situation that the depth of the collected water sample deviates from the target depth and causes errors due to the inclination; the piston rod can be remotely controlled to extend out of the cylinder body by controlling the hydraulic pump to press liquid into the hydraulic cylinder through the liquid conveying hose, so that the annular moving block can be pulled by the piston rod and is close to the water storage cavity to be opened, the annular moving block can open the corresponding water inlet control valve and the corresponding air outlet control valve, and the water storage cavity is communicated with the outside to collect water samples.

Further, a connecting piece is connected to a piston rod of the hydraulic cylinder, one end of the connecting piece is connected with one end, far away from a cylinder body of the hydraulic cylinder, of the piston rod, the other end of the connecting piece extends towards the direction of the mounting seat and is connected with the annular moving block, when the piston rod is completely retracted into the cylinder body, the annular moving block is abutted to the mounting seat, and the maximum stroke amount of the piston rod is greater than or equal to the length of the annular sampling box.

Through adopting above-mentioned technical scheme for the piston rod is from the complete in-process of retracting the cylinder body to stretching out the cylinder body completely, can be with the annular movable block pulling that is located the bottom of annular sampling box to the top of annular sampling box, thereby guarantee that all water storage cavities in the annular sampling box can be opened and the water sample is gathered.

In summary, the present application includes the following beneficial technical effects:

the suspension part is held to enable the device to suspend at the depth to be sampled, and the driving unit is controlled to drive the annular moving block to be close to the water storage cavity to be opened, so that the annular moving block is abutted against the air outlet control valve and the water inlet control valve, external water enters the water storage cavity through the water inlet, air in the water storage cavity is discharged through the air outlet, and the sampling operation of the water body at the depth can be realized; after the sampling of the water body with the depth is finished, the driving unit is controlled to drive the annular moving block to be far away from the air outlet control valve and the water inlet control valve, so that the air outlet and the water inlet are in a closed state, a water sample in the water storage cavity is isolated from the outside, and therefore, when the depth of the device is changed, the water sample is not easy to be mixed with water outside the water storage cavity to cause pollution, and an error occurs in a detection result; after the sampling of this degree of depth is accomplished, can stimulate the suspension element in order to remove this device to next sampling depth department, the water storage chamber that the next unopened of reselection and repeat the aforesaid sampling operation to can realize once only sampling the water sample of different degree of depth, and the degree of depth interval of sampling is big.

Drawings

Fig. 1 is a perspective view of a water resource sampling device of the present application.

Fig. 2 is a right side view of a water resource sampling device of the present application.

Fig. 3 is a schematic cross-sectional view taken along section line A-A in fig. 2.

Fig. 4 is a schematic partial enlarged view of region B in fig. 3, in which the water inlet control valve is shown.

Fig. 5 is a schematic partial enlarged view of region C of fig. 3, showing the outlet control valve.

Reference numerals: 1. a mounting base; 2. a support column; 3. a hanging member; 4. an annular sampling box; 41. a water storage chamber; 42. a water inlet; 43. a water inlet control valve; 431. a water inlet valve base; 432. a water inlet valve connecting column; 433. a water inlet valve movable block; 4331. a water inlet valve protrusion; 4332. a water inlet valve flange seat; 434. a water inlet valve spring; 435. a water inlet seal; 44. an air outlet; 45. an air outlet control valve; 451. an air outlet valve base; 452. the air outlet valve is connected with the column; 453. a gas outlet valve movable block; 4531. a gas outlet valve protrusion; 4532. an air outlet valve flange seat; 454. an air outlet valve spring; 455. an air outlet seal; 5. an annular moving block; 51. the water inlet is abutted against the part; 52. the air outlet is abutted against the part; 53. a water inlet abdication groove; 54. an air outlet abdication groove; 6. a driving unit; 61. a hydraulic cylinder; 62. a connecting piece; 7. an infusion hose; 71. a liquid separating valve; 72. a liquid separating pipe.

Detailed Description

Fig. 1 is a perspective view of a water resource sampling device of the present application, and fig. 2 is a right side view of a water resource sampling device of the present application. Referring to fig. 1 and 2, a water resource sampling device includes: the device comprises a mounting seat 1, a support column 2, a hanging part 3, an annular sampling box 4, an annular moving block 5 and a driving unit 6, wherein one end of the support column 2 is connected with the mounting seat 1, the other end of the support column 2 is connected with the hanging part 3 (such as a rope with preset scales), the annular sampling box 4 is sleeved on the support column 2, the annular moving block 5 is sleeved on the annular sampling box 4, external threads can be arranged on the support column 2, and a corresponding internal thread structure is arranged on the annular sampling box 4, so that the connection between the support column 2 and the annular sampling box 4 is firmer, the annular moving block 5 is not easy to pull the annular sampling box 4 to enable the annular sampling box 4 to slide from the support column 2, and a balancing weight can be arranged at the bottom of the mounting seat 1, so that the device is submerged in water.

Fig. 3 is a schematic cross-sectional view taken along section line A-A in fig. 2. Referring to fig. 1 and 3, the inside of the annular sampling box 4 is provided with a plurality of relatively independent water storage cavities 41 along the length direction thereof, the side wall of each water storage cavity 41 is provided with a water inlet 42 and a gas outlet 44, the vertical height of the water outlet is higher than that of the water inlet 42, so that when external water enters the water storage cavity 41 through the water inlet 42, air in the cavity can enter the outside through the gas outlet 44, and the air in the water storage cavity 41 is not easy to block the external water from entering the water storage cavity 41, so that the sampling speed of the water storage cavity 41 can be improved.

Fig. 4 is a schematic partial enlarged view of a region B in fig. 3 in which the water inlet control valve is shown, and fig. 5 is a schematic partial enlarged view of a region C in fig. 4 in which the water outlet control valve is shown. Referring to fig. 4 and 5, a water inlet control valve 43 is provided on the water inlet 42, a gas outlet control valve 45 is provided on the gas outlet 44, a gas outlet abutting part 52 matched with the gas outlet control valve 45 and a water inlet abutting part 51 matched with the water inlet control valve 43 are provided on the annular moving block 5, and when the water inlet abutting part 51 abuts against the water inlet control valve 43, the gas outlet abutting part 52 abuts against the corresponding gas outlet control valve 45, and the water inlet 42 and the gas outlet 44 connected with the same water storage cavity 41 are simultaneously opened.

Specifically, referring to fig. 3 and 4, a water inlet relief groove 53 may be formed on the annular moving block 5, one end of the water inlet relief groove 53 is led to the water inlet abutting portion 51, and the other end of the water inlet relief groove 53 extends upward to the top of the annular moving block 5, so that the water inlet relief groove 53 can accommodate a portion of the water inlet control valve 43 protruding from the annular sampling box 4; referring to fig. 3 and 5, an air outlet relief groove 54 may be further formed on the annular moving block 5, one end of the air outlet relief groove 54 is led to the air outlet abutting portion 52, and the other end of the air outlet relief groove 54 extends downward to the bottom of the annular moving block 5, so that the air outlet relief groove 54 can accommodate a portion of the air outlet control valve 45 protruding from the annular sampling box 4.

In the process of collecting the water sample with the current depth, the annular moving block 5 is abutted against the air outlet control valve 45 and the water inlet control valve 43 corresponding to the water storage cavity 41; after the water sample at the current depth is collected, the annular moving block 5 moves upwards, so that the water inlet control valve 43 and the air outlet control valve 45 of the water storage cavity 41 filled with water are closed, and move towards the air outlet control valve 45 and the water inlet control valve 43 corresponding to the next water storage cavity 41 to be opened, and in the process of moving towards the air outlet control valve 45 and the water inlet control valve 43 corresponding to the next water storage cavity 41 to be opened, the water inlet control valve 43 of the water storage cavity 41 filled with water is not extruded by the annular moving block 5, and the part, protruding out of the annular sampling box 4, of the air outlet control valve 45 of the water storage cavity 41 filled with water enters the air outlet relief groove 54, so that the water inlet control valve 43 and the air outlet control valve 45 can be kept in a closed state.

When a water sample with the next depth needs to be collected, the annular moving block needs to be moved to be abutted against the air outlet control valve 45 and the water inlet control valve 43 corresponding to the next water storage cavity 41 to be opened, and when the top surface of the annular moving block 5 moves to be at the same height with the water inlet control valve 43 on the next water storage cavity 41 to be opened, the part, protruding out of the annular sampling box 4, of the water inlet control valve 43 enters the water inlet relief groove 53, so that the water inlet 42 is kept in a closed state; when the annular moving block 5 moves to enable the air outlet abutting part 52 to abut against the air outlet control valve 45 of the next water storage cavity 41 to be opened, the water inlet control valve 43 of the water storage cavity 41 to be opened abuts against the water inlet abutting part 51, so that the water inlet control valve 43 and the air outlet control valve 45 of the water storage cavity 41 to be opened are simultaneously in an opened state.

Through the above structural design, when the annular moving block 5 moves between two adjacent water storage cavities 41, the annular moving block 5 can not be abutted with the water inlet control valve 43 and the air outlet control valve 45 of any one of the two water storage cavities 41, so that the two water storage cavities 41 can be ensured to be in a closed state, and when the water depth of the device is changed, the water storage cavity 41 filled with water samples cannot be mixed with water samples except the target depth; the water storage cavity 41 to be filled with water sample is kept in a closed state until reaching the target depth, so that water sample outside the target depth is not mixed, and the accuracy of the sampling result can be ensured. Referring to fig. 1 and 3, the driving unit 6 includes a plurality of hydraulic cylinders 61 provided on the mounting base 1, and the plurality of hydraulic cylinders 61 are arranged at equal intervals around the support column 2, so that the device is not easy to incline when suspended in a water body, and thus, the depth of a collected water sample deviates from a target depth to cause errors, for example, two hydraulic cylinders 61 are provided, and the two hydraulic cylinders 61 are arranged at equal intervals around the support column 2; the piston rod of the hydraulic cylinder 61 is connected with the annular moving block 5, the cylinder body of the hydraulic cylinder 61 is connected with the mounting seat 1, the suspension part 3 is wound or bound with the infusion hose 7, one end of the infusion hose 7 is connected with a hydraulic pump (the hydraulic pump is generally arranged on the shore or on a ship and is not shown in the figure), the other end of the infusion hose 7 is provided with a liquid distributing valve 71, a plurality of liquid distributing pipes 72 are connected to the liquid distributing valve 71, and each liquid distributing pipe 72 is connected with the corresponding hydraulic cylinder 61.

During sampling, firstly, the suspension part 3 is held, the device is adjusted to the depth to be sampled according to the scale on the suspension part 3, and then the hydraulic pump is controlled to be started so as to press liquid into the hydraulic cylinder 61 through the liquid delivery hose 7, the liquid distribution valve 71 and the liquid distribution pipe 72, so that the liquid pushes the piston and the piston rod to extend out of the cylinder body and drives the annular moving block 5 to move; when the annular moving block 5 abuts against the air outlet control valve 45 and the water inlet control valve 43 corresponding to the water storage cavity 41 to be opened, the hydraulic pump is controlled to stop so that the annular moving block 5 stops moving, the water inlet 42 and the air outlet 44 are maintained to be in an open state at the same time, water with the depth to be sampled enters the water storage cavity 41 through the water inlet 42, and air in the water storage cavity 41 leaves the water storage cavity 41 through the air outlet 44, so that the sampling operation of the water with the depth can be realized.

After the water storage cavity 41 is sampled, the hydraulic pump is controlled to be briefly started so that the annular moving block 5 does not continuously abut against the air outlet control valve 45 and the water inlet control valve 43, and the air outlet 44 and the water inlet 42 are in a closed state so that a water sample in the water storage cavity 41 is isolated from the outside, and therefore, when the depth of the device is changed, the water sample is not easy to be mixed with water outside the water storage cavity 41 to cause pollution, and an error occurs in a detection result; after the air outlet 44 and the water inlet 42 are closed, the hanging part 3 is pulled (or discharged) to move the device to the next sampling depth, the next unopened water storage cavity 41 is selected, and the sampling operation is repeated, so that the required water samples with different depths can be sampled at one time.

Referring to fig. 1 and 3, a connecting piece 62 is connected to a piston rod of the hydraulic cylinder 61, one end of the connecting piece 62 is connected to one end of the piston rod far away from a cylinder body of the hydraulic cylinder 61, the other end of the connecting piece 62 extends towards the direction of the mounting seat 1 and is connected with the annular moving block 5, the maximum stroke amount of the piston rod is greater than or equal to the length of the annular sampling box 4, when the piston rod is completely retracted into the cylinder body, the annular moving block 5 is located at a position close to the mounting seat 1, so that the piston rod can pull the annular moving block 5 located at the bottom of the annular sampling box 4 to the top of the annular sampling box 4 in the process from completely retracting the cylinder body to completely extending out of the cylinder body, and therefore all water storage cavities 41 in the annular sampling box 4 can be opened and water samples can be collected.

Referring to fig. 3 and 4, the inlet control valve 43 includes a inlet valve base 431, a plurality of inlet valve connection posts 432, a inlet valve movable block 433, and a inlet valve spring 434; one end of each water inlet valve connecting column 432 is connected with the side wall of the water storage cavity 41, and the other end of each water inlet valve connecting column 432 extends into the water storage cavity 41 and is connected with the water inlet valve base 431; the water inlet valve movable block 433 is arranged between the side wall of the water storage cavity 41 and the water inlet valve base 431, a water inlet valve protrusion 4331 is arranged on the water inlet valve movable block 433, a water inlet valve flange seat 4332 is arranged on the water inlet valve movable block 433, which is close to the water inlet 42, a water inlet sealing member 435 is arranged between the water inlet valve flange seat 4332 and the side wall of the water storage cavity 41, a water inlet valve spring 434 is arranged between the water inlet valve movable block 433 and the water inlet valve base 431, the water inlet valve spring 434 is a precompression spring so as to apply thrust force to the water inlet valve movable block 433 towards the water inlet 42, the water inlet valve flange seat 4332 can be abutted against the side wall of the water storage cavity 41, and the water inlet sealing member 435 arranged between the water inlet valve flange seat 4332 and the side wall of the water storage cavity 41 can improve the tightness between the water inlet valve flange seat 4332 and the side wall of the water storage cavity 41, so that water in a water flowing gap is not easy to enter the water storage cavity 41, and the inside of the water storage cavity 41 is isolated from the outside.

The water inlet valve protrusion 4331 can penetrate the annular sampling box 4 from the water inlet 42, a water passing gap is reserved between the water inlet valve protrusion 4331 and the inner wall of the water inlet 42, and the part of the water inlet valve protrusion 4331 extending out of the annular sampling box 4 from the water inlet 42 is of a hemispherical structure protruding towards the direction away from the water inlet valve base 431, so that the water inlet valve protrusion 4331 can be conveniently pressed into the water inlet 42 by the annular moving block 5, the water inlet 42 is opened, and external water enters the water storage cavity; when the inlet valve protrusion 4331 is pressed by the annular moving block 5, the inlet valve flange seat 4332 is far away from the side wall of the water storage cavity 41, and a gap is formed between the inlet valve flange seat 4332 and the water storage cavity 41, so that water entering the water through gap from the outside can enter the water storage cavity 41 through the gap, and further the collection operation of the outside water sample can be realized.

Referring to fig. 3 and 5, the outlet control valve 45 includes an outlet valve base 451, a plurality of outlet valve connection posts 452, an outlet valve movable block 453, and an outlet valve spring 454; one end of each air outlet valve connecting column 452 is connected with the side wall of the water storage cavity 41, and the other end of each air outlet valve connecting column 452 extends into the water storage cavity 41 and is connected with the air outlet valve base 451; the air outlet valve movable block 453 is arranged between the side wall of the water storage cavity 41 and the air outlet valve base 451, an air outlet valve protrusion 4531 is arranged on the air outlet valve movable block 453 and close to the air outlet 44, an air outlet valve flange seat 4532 is arranged on the air outlet valve movable block 453 and far away from the air outlet 44, an air outlet sealing member 455 is arranged between the air outlet valve flange seat 4532 and the side wall of the water storage cavity 41, the air outlet valve spring 454 is arranged between the air outlet valve movable block 453 and the air outlet valve base 451, and the air outlet valve spring 454 is a precompression spring so as to apply thrust towards the air outlet 44 to the air outlet valve movable block 453, so that the air outlet valve flange seat 4532 is abutted against the side wall of the water storage cavity 41, and the air outlet sealing member 455 arranged between the air outlet valve flange seat 4532 and the side wall of the water storage cavity 41 can improve the sealing performance between the air outlet valve flange seat 4532 and the side wall of the water storage cavity 41, and the inside of the water storage cavity 41 is isolated from the outside.

The air outlet valve protruding part 4531 can penetrate the annular sampling box 4 from the air outlet 44, an air vent gap is reserved between the air outlet valve protruding part 4531 and the inner wall of the air outlet 44, the part of the air outlet valve protruding part 4531 extending out of the annular sampling box 4 from the air outlet 44 is of a hemispherical structure protruding towards the direction away from the air outlet valve base 451, and therefore the annular moving block 5 can conveniently press the air outlet valve protruding part 4531 into the air outlet 44, and the air outlet 44 is opened to enable air in the water storage cavity 41 to enter the outside; when the air outlet valve protrusion 4531 is pressed by the annular moving block 5, the air outlet valve flange seat 4532 is far away from the side wall of the water storage cavity 41 and forms a gap therebetween, so that air in the water storage cavity 41 can enter the outside through the ventilation gap and the gap, and the speed of collecting water samples in the water storage cavity 41 can be improved.

The working principle of the water resource sampling device in use is as follows:

the suspension part 3 is held to enable the device to suspend at the depth to be sampled, and the driving unit 6 is controlled to drive the annular moving block 5 to be close to the water storage cavity 41 to be opened, so that the annular moving block 5 is abutted against the air outlet control valve 45 and the water inlet control valve 43, external water enters the water storage cavity 41 through the water inlet 42, air in the water storage cavity 41 is discharged through the air outlet 44, and the sampling operation of the water body at the depth can be realized; after the sampling of the water body with the depth is finished, the driving unit 6 is controlled to drive the annular moving block 5 to be far away from the air outlet control valve 45 and the water inlet control valve 43, so that the air outlet 44 and the water inlet 42 are in a closed state, the water sample in the water storage cavity 41 is isolated from the outside, and the water sample is not easy to be mixed with water outside the water storage cavity 41 to cause pollution when the depth of the device is changed, so that errors occur in detection results; after the sampling of a certain depth is completed, the hanging part 3 is pulled to move the device to the next sampling depth, the next unopened water storage cavity 41 is selected, and the sampling operation is repeated, so that the sampling of water samples of different depths can be realized, and the sampling depth interval is large.

It should be noted that the above embodiments are all preferred embodiments of the present application, and the scope of protection of the present application is not limited thereby: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. A water resource sampling device, comprising: the device comprises a mounting seat (1), a support column (2), a hanging part (3), an annular sampling box (4), an annular moving block (5) and a driving unit (6), wherein one end of the support column (2) is connected with the mounting seat (1), the other end of the support column (2) is connected with the hanging part (3), the annular sampling box (4) is sleeved on the support column (2), the annular moving block (5) is sleeved on the annular sampling box (4), and the driving unit (6) is connected with the annular moving block (5) and is suitable for driving the annular moving block (5) to move along the length direction of the support column (2); the inside of annular sampling box (4) is equipped with a plurality of relative independent water storage chamber (41) along its length direction, each all be equipped with water inlet (42) and gas outlet (44) on the lateral wall of water storage chamber (41), be equipped with water inlet control valve (43) on water inlet (42), be equipped with gas outlet control valve (45) on gas outlet (44), water inlet control valve (43) with gas outlet control valve (45) all are configured to open when supporting with annular movable block (5) and paste, make water storage chamber (41) and external intercommunication.

2. The water resource sampling device of claim 1, wherein: the water inlet control valve (43) comprises a water inlet valve base (431), a plurality of water inlet valve connecting columns (432), a water inlet valve movable block (433) and a water inlet valve spring (434); one end of each water inlet valve connecting column (432) is connected with the side wall of the water storage cavity (41), and the other end of each water inlet valve connecting column (432) extends into the water storage cavity (41) and is connected with the water inlet valve base (431); the water inlet valve movable block (433) is arranged between the side wall of the water storage cavity (41) and the water inlet valve base (431), a water inlet valve protrusion (4331) is arranged on the water inlet valve movable block (433) and close to the water inlet (42), a water inlet valve flange seat (4332) is arranged on the water inlet valve movable block (433) and far away from the water inlet (42), a water inlet valve spring (434) is arranged between the water inlet valve movable block (433) and the water inlet valve base (431), the water inlet valve spring (434) is a precompression spring so as to apply thrust towards the water inlet (42) to the water inlet valve movable block (433), the water inlet valve protrusion (4331) can penetrate through the annular sampling box (4) from the water inlet (42), the water inlet valve flange seat (4332) can be abutted against the side wall of the water storage cavity (41), and a water inlet seal (435) is arranged between the water inlet valve flange seat (4332) and the side wall of the water storage cavity (41); a water passing gap is formed between the water inlet valve protrusion (4331) and the inner wall of the water inlet (42).

3. A water resource sampling device as claimed in claim 2, wherein: the part of the inlet valve protrusion (4331) extending out of the annular sampling box (4) from the water inlet (42) is of a hemispherical structure protruding away from the inlet valve base (431).

4. The water resource sampling device of claim 1, wherein: the air outlet (44) control valve comprises an air outlet valve base (451), a plurality of air outlet valve connecting columns (452), an air outlet valve movable block (453) and an air outlet valve spring (454); one end of each air outlet valve connecting column (452) is connected with the side wall of the water storage cavity (41), and the other end of each air outlet valve connecting column (452) extends into the water storage cavity (41) and is connected with the air outlet valve base (451); the utility model discloses a water storage device, including water storage cavity (41) and gas outlet base (451), gas outlet valve movable block (453) are located between the lateral wall of water storage cavity (41) and gas outlet valve base (451), be close to on gas outlet valve movable block (453) the part of gas outlet (44) is equipped with gas outlet valve bulge (4531), be away from on gas outlet valve movable block (453) the part of gas outlet (44) is equipped with gas outlet valve flange seat (4532), gas outlet valve spring (454) are located between gas outlet valve movable block (453) and gas outlet valve base (451), gas outlet valve spring (454) are precompression spring, in order to can apply to gas outlet valve movable block (453) towards the thrust of gas outlet (44), gas outlet valve bulge (4531) can follow gas outlet (44) department wear out annular sampling box (4), gas outlet valve flange seat (4532) can with the lateral wall of water storage cavity (41) supports and pastes, just gas outlet valve flange seat (4532) with be equipped with seal 455 between the lateral wall of gas outlet cavity (41); a ventilation gap is formed between the air outlet valve protrusion (4531) and the inner wall of the air outlet (44).

5. The water resource sampling device of claim 4, wherein: the part of the air outlet valve protruding part (4531) extending out of the annular sampling box (4) from the air outlet (44) is of a hemispherical structure protruding in a direction away from the air outlet valve base (451).

6. A water resource sampling device according to any one of claims 1 to 5, wherein: the vertical height of the air outlet (44) on the same water storage cavity (41) is higher than that of the water inlet (42), an air outlet abutting part (52) matched with the air outlet control valve (45) and a water inlet abutting part (51) matched with the water inlet control valve (43) are arranged on the annular moving block (5), and when the water inlet abutting part (51) abuts against the water inlet control valve (43), the air outlet abutting part (52) abuts against the corresponding air outlet control valve (45) and enables the water inlet (42) and the air outlet (44) connected with the same water storage cavity (41) to be simultaneously opened.

7. The water resource sampling device of claim 1, wherein: the driving unit (6) comprises a plurality of hydraulic cylinders (61) arranged on the mounting base (1), the hydraulic cylinders (61) are arranged around the supporting columns (2) at equal intervals, piston rods of the hydraulic cylinders (61) are connected with the annular moving blocks (5), cylinder bodies of the hydraulic cylinders (61) are connected with the mounting base (1), the hanging part (3) is wound with an infusion hose (7), one end of the infusion hose (7) is connected with a hydraulic pump, the other end of the infusion hose (7) is provided with a liquid distributing valve (71), a plurality of liquid distributing pipes (72) are connected to the liquid distributing valve (71), and each liquid distributing pipe (72) is connected with the corresponding hydraulic cylinder (61).

8. The water resource sampling device of claim 7, wherein: the hydraulic cylinder is characterized in that a connecting piece (62) is connected to a piston rod of the hydraulic cylinder (61), one end of the connecting piece (62) is connected with one end of a cylinder body of the piston rod, which is far away from the hydraulic cylinder (61), the other end of the connecting piece (62) extends towards the direction of the mounting seat (1) and is connected with the annular moving block (5), when the piston rod is completely retracted into the cylinder body, the annular moving block (5) is abutted to the mounting seat (1), and the maximum stroke amount of the piston rod is greater than or equal to the length of the annular sampling box (4).