River water sampling equipment for hydraulic engineering

Abstract

The utility model belongs to the technical field of river water sampling equipment, and particularly relates to river water sampling equipment for hydraulic engineering, which comprises a first mounting seat, a floating plate is sleeved on the outer side of the first mounting seat, a depth adjusting component is arranged in a second mounting seat, and the depth adjusting component is connected with a connecting plate. The connecting plate penetrates through the two sides of the first mounting base and is slidably connected with the first mounting base, the bottom end of the connecting plate is connected with the two sides of the upper portion of a sampling barrel, the top end of the sampling barrel is slidably connected with a through hole, a second mounting cavity is formed in the top end of the sampling barrel, and an adjusting assembly is arranged in the second mounting cavity and connected with a second sliding plate; a flow guide cavity is formed in the bottom end of the interior of the sampling barrel, the bottom end of the flow guide cavity penetrates through the center of the bottom end of the sampling barrel, and the bottom end of the sampling barrel is in threaded connection with a connecting barrel, so that the problems that river water of different depths cannot be sampled, water of a proper volume is inconvenient to obtain according to needs during water taking, and river water sampling is inconvenient are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of river water sampling equipment, and in particular relates to river water sampling equipment used in water conservancy projects. Background Art

[0002] In order to detect the water quality of the river, it is necessary to sample the river water frequently. However, the existing river water sampling equipment for water conservancy projects has the following shortcomings: 1. It cannot sample river water of different depths; 2. It is not convenient to obtain the appropriate volume of water as needed when taking water, which is not convenient for sampling river water. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide a river water sampling device for water conservancy projects to solve the problems of being unable to sample river water of different depths and being inconvenient to obtain the appropriate volume of water as needed, which is inconvenient for river water sampling.

[0004] To achieve the above objectives, the utility model adopts the following technical solution: a river water sampling device for water conservancy projects, comprising a mounting seat 1, a floating plate is sleeved on the outer side of the mounting seat 1, a mounting seat 2 is fixedly mounted on the top of the mounting seat 1, a depth adjustment component is arranged inside the mounting seat 2, the depth adjustment component is connected to a connecting plate, and the connecting plate passes through both sides of the mounting seat 1 and is slidably connected thereto, the bottom end of the connecting plate is connected to both sides above the sampling tube, the top end of the sampling tube is slidably connected to a through hole, and the through hole is arranged at the center of the mounting seat 1, a mounting cavity 2 is arranged at the top of the sampling tube, and an adjustment component is arranged in the mounting cavity 2, the adjustment component is connected to a slide plate 2, and the slide plate 2 is slidably arranged in a liquid storage cavity, the liquid storage cavity is arranged inside the sampling tube, and a guide cavity is arranged at the bottom end of the inner part of the sampling tube, and the guide cavity is arranged below the liquid storage cavity, the bottom end of the guide cavity passes through the center of the bottom end of the sampling tube, and the bottom end of the sampling tube is threadedly connected to the connecting tube.

[0005] The beneficial effects of the utility model are:

[0006] When using the device, first place the device on a designated water surface, and start the forward and reverse motor 1 through the control component. At this time, the screw 1 connected to its sub-rotating shaft will rotate in the slide groove, and the rotating screw 1 drives the slider connected to its thread to slide in the slide groove. At the same time, the slider drives the limit plate to move up and down. At the same time, when the limit plate slides downward, the connecting plate connected to it can drive the sampling tube to slide downward. The user can read the value of the scale line 1 through the sliding position of the slider in the slide groove, thereby judging the depth of the sampling tube, so that the sampling tube can sample water at different depths.

[0007] The user starts the forward and reverse motor 2 through the control component. At this time, the forward and reverse motor 2 drives the bevel gear 1 to rotate. At this time, the rotating bevel gear 1 drives the bevel gear 2 meshing with it to drive the threaded rotating cylinder to rotate in the installation cavity 2. At this time, the rotating threaded rotating cylinder makes the screw 2 threadedly connected to it drive the slide plate 2 to slide up and down in the liquid storage cavity, and the position of the sliding slide plate 2 can be viewed through the observation window. At the same time, the volume in the liquid storage cavity can be adjusted by reading the value of the scale line 2, and the sampling capacity can be adjusted according to needs.

[0008] To sample water at different depths:

[0009] As a further improvement of the above technical solution: the depth adjustment assembly consists of a forward and reverse motor 1, a screw 1, and a scale line 1. A slide groove is provided on the front side of the mounting seat 2, and a screw 1 is rotatably installed in the slide groove. The top end of the screw 1 passes through the top end of the mounting seat 2 and is rotatably connected thereto. A forward and reverse motor 1 is fixedly installed at the center of the top end of the mounting seat 2, and the sub-rotating shaft of the forward and reverse motor 1 is connected to the top end of the screw 1. The screw 1 passes through the slider and is threadedly connected thereto, and the slider is embedded in the slidable connection slide groove. The slider is fixedly connected to the center of one side of the limit plate, and both sides of the bottom end of the limit plate are fixedly connected to the top end of the connecting plate, and bolts are threadedly installed on the bottom end of the connecting plate, and one end of the bolt is threadedly connected to the upper sides of the sampling tube, and a scale line 1 is provided on the front side of the mounting seat 2.

[0010] The beneficial effect of this improvement is as follows: when using this device, first place this device on a designated water surface, start the forward and reverse motor 1 through the control component, at this time, the screw 1 connected to its sub-rotating shaft will rotate in the slide groove, the rotating screw 1 drives the slider threadedly connected to it to slide in the slide groove, and at the same time the slider drives the limit plate to move up and down, and at the same time when the limit plate slides downward, the connecting plate connected to it can drive the sampling tube to slide downward, the user can read the value of the scale line 1 through the position of the slider sliding in the slide groove, so as to judge the depth of the sampling tube, so that the sampling tube can sample water at different depths, and when the sampling tube finishes sampling the water sample, the sampling tube can be removed by turning the bolt to disconnect one end of it from the sampling tube, and the sample inside it can be taken out.

[0011] To filter river water:

[0012] As a further improvement of the above technical solution: an installation cavity 1 is opened inside the sampling tube, and an electric telescopic rod is fixedly installed in the installation cavity 1, one end of the electric telescopic rod passes through the upper center of the guide cavity and is slidably connected thereto, one end of the electric telescopic rod is fixedly connected to a push rod, and the push rod is connected to the top center of a slide plate 1, the slide plate 1 slides on the inner side of the connecting tube, and a thread is provided above the connecting tube, and a filter tube is provided below it.

[0013] The beneficial effect of this improvement is that when the sampling tube moves to a suitable depth, the electric telescopic rod can be started through the control component to move it downward. At this time, the push rod connected to it will cause the slide plate to slide in the connecting tube, and the sliding slide plate will expose the mesh of the filter tube. At this time, the river water flows through the filter net into the diversion cavity, and the filter tube can filter the river water.

[0014] To take a water sample:

[0015] As a further improvement of the above technical solution: a water pump is installed inside the sampling tube, and one end of the water pump is connected to a water suction pipe, which passes through the top of the diversion cavity and is fixedly connected thereto, and the other end of the water pump is connected to a drain pipe, and one end of the drain pipe passes through an inner wall of one side of the liquid storage cavity and is fixedly connected thereto.

[0016] The beneficial effect of this improvement is that by starting the water pump, the river water in the diversion chamber flows to the drainage pipe through the suction pipe, and then flows to the liquid storage chamber through the drainage pipe.

[0017] To adjust the sampling volume:

[0018] As a further improvement of the above technical solution: the adjustment component is composed of two forward and reverse motors, two installation cavities, one bevel gear, two bevel gears, a silicone sleeve, and a threaded rotating drum. The top of the sampling drum is provided with a second installation cavity, and one side inner wall of the second installation cavity is fixedly provided with the second forward and reverse motor. The sub-rotating shaft of the second forward and reverse motor is fixedly provided with the first bevel gear. One side of the first bevel gear is meshedly connected with one side of the second bevel gear. The second bevel gear is fixedly provided above the threaded rotating drum. The threaded rotating drum is rotatably provided in the second installation cavity. A sliding hole is provided through the center of the second bevel gear. A screw rod 2 is installed through the barrel and is threadedly connected thereto, and the screw rod 2 is slidably connected to the sliding hole, the top end of the screw rod 2 passes through the top center of the sampling barrel and is slidably connected thereto, and the top end of the mounting cavity 2 passes through the top center of the sampling barrel, and a silicone sleeve is provided at the top center of the sampling barrel, and the silicone sleeve is slidably connected to the screw rod 2, the bottom end of the screw rod 2 passes through the top center of the liquid storage chamber, and a slide plate 2 is fixedly installed at the bottom end of the screw rod 2, and the slide plate 2 is slidably installed in the liquid storage chamber, a water level sensor is provided at the bottom end of the slide plate 2, an observation window is provided on the front side of the sampling barrel, and a scale line 2 is provided on one side of the observation window.

[0019] The beneficial effect of this improvement is as follows: the user starts the forward and reverse motor 2 through the control component, and the forward and reverse motor 2 drives the bevel gear 1 to rotate. At this time, the rotating bevel gear 1 drives the bevel gear 2 meshing with it to drive the threaded rotating cylinder to rotate in the installation cavity 2. At this time, the rotating threaded rotating cylinder makes the screw 2 threadedly connected to it drive the slide plate 2 to slide up and down in the liquid storage cavity, and the position of the sliding slide plate 2 can be viewed through the observation window, and the volume in the liquid storage cavity can be adjusted by reading the value of the scale line 2, and the sampling capacity can be adjusted according to needs.

[0020] In order to uniformly control this device:

[0021] As a further improvement of the above technical solution: a control component is installed on the top of the mounting seat one, a battery and a control chip are installed in the control component, and the control component is electrically connected to the forward and reverse motor one, the electric telescopic rod, the water pump, the forward and reverse motor two, and the water level sensor.

[0022] The beneficial effect of this improvement is that the control component is electrically connected to the first forward and reverse motor, the electric telescopic rod, the water pump, the second forward and reverse motor, and the water level sensor, and the device is uniformly controlled through the control component.

[0023] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the sampling tube structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the second structure of the installation cavity of the utility model;

[0028] Figure 5 This is a schematic diagram of the connecting tube structure of the utility model;

[0029] In the figure: 1. Mounting seat 1; 2. Floating plate; 3. Through hole; 4. Connecting plate; 5. Limiting plate; 6. Mounting seat 2; 7. Forward and reverse motor 1; 8. Screw 1; 9. Scale line 1; 10. Scale line 2; 11. Observation window; 12. Sampling tube; 13. Connecting tube; 14. Bolt; 15. Adjustment assembly; 16. Liquid storage chamber; 17. Diversion chamber; 18. Electric telescopic rod; 19. Water pump; 20. Slide plate 1; 21. Screw 2; 22. Forward and reverse motor 2; 23. Mounting chamber 2; 24. Bevel gear 1; 25. Bevel gear 2; 26. Silicone sleeve; 27. Threaded drum; 28. Slide plate 2. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0031] like Figure 1-5 As shown, a river water sampling device for water conservancy projects includes a mounting seat 1, a floating plate 2 is sleeved on the outer side of the mounting seat 1, a mounting seat 2 6 is fixedly mounted on the top of the mounting seat 1, a depth adjustment component is arranged inside the mounting seat 2 6, the depth adjustment component is connected to a connecting plate 4, and the connecting plate 4 passes through both sides of the mounting seat 1 and is slidably connected thereto, the bottom end of the connecting plate 4 is connected to both sides of the top of a sampling tube 12, the top end of the sampling tube 12 is slidably connected to a through hole 3, and the through hole 3 is opened on the mounting seat 1 At the center, the top of the sampling barrel 12 is provided with an installation cavity 23, and the installation cavity 23 is provided with an adjustment component 15, the adjustment component 15 is connected to the slide plate 28, and the slide plate 28 is slidably installed in the liquid storage cavity 16, the liquid storage cavity 16 is opened inside the sampling barrel 12, and the inner bottom end of the sampling barrel 12 is provided with a guide cavity 17, and the guide cavity 17 is arranged below the liquid storage cavity 16, the bottom end of the guide cavity 17 passes through the bottom center of the sampling barrel 12, and the bottom end of the sampling barrel 12 is threadedly connected to the connecting barrel 13.

[0032] The depth adjustment assembly consists of a forward and reverse motor 7, a screw 8, and a scale line 9. A slide groove is provided on the front side of the mounting seat 6, and a screw 8 is rotatably installed in the slide groove. The top end of the screw 8 passes through the top end of the mounting seat 6 and is rotatably connected thereto. A forward and reverse motor 7 is fixedly installed at the center of the top end of the mounting seat 6, and a sub-rotating shaft of the forward and reverse motor 7 is connected to the top end of the screw 8. The screw 8 passes through the slider and is threadedly connected thereto, and the slider is embedded in the slidable connection slide groove. The slider is fixedly connected to the center of one side of the limit plate 5. Both sides of the bottom end of the limit plate 5 are fixedly connected to the top end of the connecting plate 4. Bolts 14 are threadedly installed on the bottom end of the connecting plate 4, and one end of the bolt 14 is threadedly connected to the upper sides of the sampling tube 12. Scale lines are provided on the front side of the mounting seat 6. 9; When using the device, first place the device on the designated water surface, and start the forward and reverse motor 7 through the control component. At this time, the screw 8 connected to its sub-rotating shaft will rotate in the slide groove, and the rotating screw 8 drives the slider threadedly connected to it to slide in the slide groove, and the slider drives the limit plate 5 to move up and down. At the same time, when the limit plate 5 slides downward, the connecting plate 4 connected to it can drive the sampling tube 12 to slide downward. The user can read the value of the scale line 9 according to the position of the slider sliding in the slide groove, so as to judge the penetration depth of the sampling tube 12, so that the sampling tube 12 can sample water at different depths. When the sampling tube 12 completes sampling of the water sample, the bolt 14 is turned to make one end of it disconnected from the sampling tube 12, and the sampling tube 12 can be removed to take out the sample inside it.

[0033] The sampling tube 12 is provided with an installation cavity 1 inside, and an electric telescopic rod 18 is fixedly installed in the installation cavity 1, one end of the electric telescopic rod 18 passes through the upper center of the diversion cavity 17 and is slidably connected thereto, one end of the electric telescopic rod 18 is fixedly connected to a push rod, and the push rod is connected to the top center of a slide plate 20, the slide plate 20 slides on the inner side of the connecting tube 13, and a thread is provided above the connecting tube 13, and a filter cartridge is provided below it; when the sampling tube 12 moves to a suitable depth, the electric telescopic rod 18 can be started by the control component to move it downward, at which time the push rod connected thereto will cause the slide plate 20 to slide in the connecting tube 13, and the sliding slide plate 20 exposes the mesh of the filter cartridge, at which time the river water flows into the diversion cavity 17 through the filter net, and the filter cartridge provided can filter the river water.

[0034] A water pump 19 is installed inside the sampling tube 12, and one end of the water pump 19 is connected to a water suction pipe, which passes through the top of the diversion cavity 17 and is fixedly connected thereto, and the other end of the water pump 19 is connected to a drainage pipe, and one end of the drainage pipe passes through an inner wall of one side of the liquid storage cavity 16 and is fixedly connected thereto; by starting the water pump 19, the river water in the diversion cavity 17 flows to the drainage pipe through the water suction pipe, and then flows into the liquid storage cavity 16 through the drainage pipe.

[0035] The adjusting assembly 15 is composed of a forward and reverse motor 22, a mounting cavity 23, a bevel gear 1 24, a bevel gear 25, a silicone sleeve 26, and a threaded rotating cylinder 27. The top of the sampling cylinder 12 is provided with a mounting cavity 23, and a forward and reverse motor 22 is fixedly mounted on the inner wall of one side of the mounting cavity 23. A bevel gear 1 24 is fixedly mounted on the sub-rotating shaft of the forward and reverse motor 22. One side of the bevel gear 1 24 is meshedly connected to one side of the bevel gear 25. The bevel gear 25 is fixedly mounted on the threaded rotating cylinder 27. The threaded rotating cylinder 27 is rotatably installed in the second installation cavity 23. The center of the second bevel gear 25 is provided with a sliding hole. The second screw 21 is installed in the threaded rotating cylinder 27 and is threadedly connected thereto. The second screw 21 is slidably connected to the sliding hole. The top of the second screw 21 penetrates the top center of the sampling cylinder 12 and is slidably connected thereto. The top of the second installation cavity 23 penetrates the top center of the sampling cylinder 12. A silicone sleeve 26 is provided at the top center of the sampling cylinder 12. The silicone sleeve The second screw rod 21 is slidably connected to the second screw rod 26, and the bottom end of the second screw rod 21 passes through the top center of the liquid storage chamber 16, and the bottom end of the second screw rod 21 is fixedly provided with a second slide plate 28, and the second slide plate 28 is slidably provided in the liquid storage chamber 16, and the bottom end of the second slide plate 28 is provided with a water level sensor, and the front side of the sampling tube 12 is provided with an observation window 11, and one side of the observation window 11 is provided with a scale line 20; the user starts the forward and reverse motor 22 through the control component, and the forward and reverse motor 22 drives the bevel gear 1 24 to rotate. The rotating bevel gear 1 24 drives the bevel gear 25 meshing with it to drive the threaded rotating cylinder 27 to rotate in the installation cavity 23. At this time, the rotating threaded rotating cylinder 27 makes the screw 21 threadedly connected with it drive the slide 28 to slide up and down in the liquid storage cavity 16, and the position of the sliding slide 28 can be checked through the observation window 11. At the same time, the volume in the liquid storage cavity 16 can be adjusted by reading the value of the scale line 10, and the sampling capacity can be adjusted according to the needs.

[0036] A control component is installed at the top of the mounting seat 1, and a battery and a control chip are installed in the control component. The control component is electrically connected to the forward and reverse motor 1 7, the electric telescopic rod 18, the water pump 19, the forward and reverse motor 22, and the water level sensor.

[0037] The working principle and use process of the utility model are as follows: when using the device, the user starts the forward and reverse motor 22 through the control component. At this time, the forward and reverse motor 22 drives the bevel gear 24 to rotate. At this time, the rotating bevel gear 24 drives the bevel gear 25 meshing with it to drive the threaded rotating cylinder 27 to rotate in the installation cavity 23. At this time, the rotating threaded rotating cylinder 27 makes the screw 21 threadedly connected to it drive the slide plate 28 to slide up and down in the liquid storage cavity 16, and the sliding slide plate 28 can view its position through the observation window 11. At the same time, the volume in the liquid storage cavity 16 can be adjusted by reading the value of the scale line 10, that is, the sampling capacity can be adjusted according to the needs. The device is placed on the specified water surface, and the forward and reverse motor 7 is started through the control component. At this time, the screw 8 connected to its sub-rotating shaft will rotate in the slide groove. The rotating screw rod 8 drives the slider threadedly connected thereto to slide in the slide groove, and the slider drives the limit plate 5 to move up and down. At the same time, when the limit plate 5 slides downward, the connecting plate 4 connected thereto can drive the sampling tube 12 to slide downward. The user can read the value of the scale line 9 by the sliding position of the slider in the slide groove, so as to judge the penetration depth of the sampling tube 12. When the sampling tube 12 moves to a suitable depth, the electric telescopic rod 18 can be started by the control component to move it downward. At this time, the push rod connected thereto will cause the slide plate 20 to slide in the connecting tube 13, and the sliding slide plate 20 exposes the mesh of the filter tube. At this time, the river water flows into the diversion chamber 17 through the filter net. The filter tube can filter the river water. By starting the water pump 19, the river water in the diversion chamber 17 flows to the drain pipe through the suction pipe, and then flows to the liquid storage chamber 16 through the drain pipe.

Claims

1. A river water sampling device for water conservancy projects, characterized in that: The invention comprises a mounting seat (1), wherein a floating plate (2) is sleeved on the outer side of the mounting seat (1), a mounting seat (6) is fixedly mounted on the top of the mounting seat (1), a depth adjustment component is arranged inside the mounting seat (6), the depth adjustment component is connected to a connecting plate (4), and the connecting plate (4) passes through both sides of the mounting seat (1) and is slidably connected thereto, the bottom end of the connecting plate (4) is connected to both sides of the upper side of a sampling barrel (12), the top end of the sampling barrel (12) is slidably connected to a through hole (3), and the through hole (3) is arranged at the center of the mounting seat (1), and the sampling barrel (12) is connected to the sampling barrel (12) through the through hole (3). 2) is provided with an installation cavity 2 (23) at the top, and an adjustment component (15) is installed in the installation cavity 2 (23), the adjustment component (15) is connected to the slide plate 2 (28), and the slide plate 2 (28) is slidably installed in the liquid storage cavity (16), the liquid storage cavity (16) is opened inside the sampling tube (12), and the inner bottom end of the sampling tube (12) is provided with a guide cavity (17), and the guide cavity (17) is arranged below the liquid storage cavity (16), the bottom end of the guide cavity (17) passes through the bottom center of the sampling tube (12), and the bottom end of the sampling tube (12) is threadedly connected to the connecting tube (13).

2. A river water sampling device for water conservancy projects according to claim 1, characterized in that: The depth adjustment assembly is composed of a forward and reverse motor (7), a screw (8), and a scale line (9). A slide groove is provided on the front side of the mounting seat (6), and a screw (8) is rotatably installed in the slide groove. The top end of the screw (8) passes through the top end of the mounting seat (6) and is rotatably connected thereto. A forward and reverse motor (7) is fixedly installed at the center of the top end of the mounting seat (6), and a sub-rotating shaft of the forward and reverse motor (7) is connected to the top end of the screw (8). The screw (8) passes through a slider and is threadedly connected thereto, and the slider is engaged in a sliding connection in the slide groove. The slider is fixedly connected to the center of one side of the limit plate (5). Both sides of the bottom end of the limit plate (5) are fixedly connected to the top end of the connecting plate (4). Bolts (14) are threadedly installed on the bottom end of the connecting plate (4), and one end of the bolt (14) is threadedly connected to the upper sides of the sampling tube (12). A scale line (9) is provided on the front side of the mounting seat (6).

3. The river water sampling equipment for water conservancy projects according to claim 1 is characterized by: The sampling tube (12) is provided with an installation cavity 1 inside, and an electric telescopic rod (18) is fixedly installed in the installation cavity 1, one end of the electric telescopic rod (18) passes through the upper center of the guide cavity (17) and is slidably connected thereto, one end of the electric telescopic rod (18) is fixedly connected to a push rod, and the push rod is connected to the top center of a slide plate 1 (20), and the slide plate 1 (20) slides on the inner side of the connecting tube (13), and a thread is provided above the connecting tube (13), and a filter tube is provided below the connecting tube (13).

4. The river water sampling equipment for water conservancy projects according to claim 1 is characterized by: A water pump (19) is installed inside the sampling tube (12), and one end of the water pump (19) is connected to a water suction pipe, which passes through the top of the diversion cavity (17) and is fixedly connected thereto, and the other end of the water pump (19) is connected to a drainage pipe, and one end of the drainage pipe passes through an inner wall of one side of the liquid storage cavity (16) and is fixedly connected thereto.

5. The river water sampling equipment for water conservancy projects according to claim 1 is characterized by: The adjustment assembly (15) is composed of a forward and reverse motor (22), a second installation cavity (23), a bevel gear (24), a second bevel gear (25), a silicone sleeve (26), and a threaded rotating cylinder (27). The top of the sampling cylinder (12) is provided with a second installation cavity (23), and a forward and reverse motor (22) is fixedly installed on the inner wall of one side of the installation cavity (23). A bevel gear (24) is fixedly installed on the sub-rotating shaft of the forward and reverse motor (22). One side of the bevel gear (24) is meshedly connected with one side of the bevel gear (25). The bevel gear (25) is fixedly installed above the threaded rotating cylinder (27). The threaded rotating cylinder (27) is rotatably installed in the second installation cavity (23). A sliding hole is opened through the center of the bevel gear (25). A bevel gear (24) is installed through the threaded rotating cylinder (27). The second screw rod (21) is threadedly connected thereto, and the second screw rod (21) is slidably connected to the sliding hole. The top end of the second screw rod (21) passes through the top center of the sampling tube (12) and is slidably connected thereto. The top end of the second mounting cavity (23) passes through the top center of the sampling tube (12), and a silicone sleeve (26) is provided at the top center of the sampling tube (12), and the silicone sleeve (26) is slidably connected to the second screw rod (21). The bottom end of the second screw rod (21) passes through the top center of the liquid storage cavity (16), and a second slide plate (28) is fixedly installed at the bottom end of the second screw rod (21), and the second slide plate (28) is slidably installed in the liquid storage cavity (16). A water level sensor is provided at the bottom end of the second slide plate (28). An observation window (11) is provided on the front side of the sampling tube (12), and a second scale line (10) is provided on one side of the observation window (11).

6. The river water sampling equipment for water conservancy projects according to claim 1, characterized in that: A control component is installed at the top of the mounting seat 1 (1), a battery and a control chip are installed in the control component, and the control component is electrically connected to the forward and reverse motor 1 (7), the electric telescopic rod (18), the water pump (19), the forward and reverse motor 2 (22), and the water level sensor.

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