Water conservancy project detection sampling device

Abstract

The invention discloses a water conservancy project detection sampling device, and relates to the field of water conservancy project detection.The water conservancy project detection sampling device is characterized in that a hose is submerged into water by a specified depth, a containing box is installed on one side of a ship body through bolts, and then the end, provided with a weight box, of a water pumping hose is lowered into the water to reach the specified depth; at the moment, the pneumatic telescopic cylinder extends along with descending of the weight box, and the water pumping hose is limited to be prevented from shaking; according to the water quality sampling device, water pumping and sampling are conducted, a baffle in the weight box moves, so that a plugging head moves out of a penetrating hole, water at the depth can enter the weight box through the penetrating hole and is detached and cleaned, and after water quality sampling is completed, the weight box can be taken down from a pneumatic telescopic cylinder and a water pumping hose through an installation assembly. Water in other layers is prevented from entering the hose through the blocked weight box, water can be directly pumped and sampled after the specified depth is reached, meanwhile, impurities contained in the water can be filtered out, and the hose is prevented from being blocked.

Description

Technical Field

[0001] The invention mainly relates to the technical field of water conservancy project detection, in particular to a water conservancy project detection sampling device. Background Art

[0002] Water conservancy projects are projects built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and promoting benefits. Water conservancy project testing and sampling refers to the process of extracting a certain number of water or soil samples from the site for analysis and testing in order to obtain information on project quality, safety, environmental protection, etc. during the construction, operation and management of water conservancy projects.

[0003] The sampling device for water conservancy detection described in the prior art includes a placement box, the middle part of which is slidably connected to a containing box, and the placement box is fixedly connected to three water pumps near the bottom surface of the inner wall of the containing box, and the tops of the three water pumps are fixedly connected to a rotating joint. The invention with application number CN202310217659.1 has the advantage that: by setting three hoses, three water pumps and three plumb lines, one end of the three hoses with plumb lines is put into the water, and then the three hoses are lowered to different lengths, so that one end of the three hoses enters the water at different depths respectively, and the sample tubes containing water samples are placed inside the three sample tube placement grooves, and the three water pumps are powered on to pump water of different depths into the inside of the sample tubes.

[0004] Although the above technology can achieve the purpose of sampling water at different depths separately, when the hose goes deep into the water, water from other layers will enter the hose and need to be discharged and then collected, which is time-consuming, and impurities in the water can easily cause blockage of the pipeline. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a water conservancy project detection sampling device to solve the technical problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: The invention discloses a sampling device for detecting water conservancy projects, comprising a containing box, a pneumatic telescopic cylinder, a counterweight box, a protective box and an internal blocking component, wherein a partition is fixed inside the containing box, a placing block and a water pump are respectively arranged on both sides of the partition, a groove is opened on the placing block and a sampling bottle is placed thereon, a pressure sensor is embedded in the placing block, a top cover component is arranged above the sampling bottle, the top cover component is used to shield the extracted water quality sample, a fixing plate is welded to the top end of the partition, a U-shaped tube is passed through the fixing plate, and both ends of the U-shaped tube are respectively connected to the top cover component and the water pump.

[0007] The technical solution is specific in that the water suction end of the water pump is connected to a water suction hose, a mounting plate is bolted to one side of the top of the receiving box, a guide wheel is fixed to the mounting plate, the water suction hose is located outside the receiving box through the guide wheel, a number of through holes are opened on the outer walls on both sides of the counterweight box, a blocking assembly is provided in the counterweight box for controlling the dredging of the through holes, a protective box is fixed to the inner bottom of the counterweight box, a battery and a control panel are respectively installed in the protective box, a pneumatic telescopic cylinder is fixed to the outer wall of the receiving box below the mounting plate, a mounting assembly is provided on the upper surface of the counterweight box, and the end of the water suction hose and the telescopic end of the pneumatic telescopic cylinder are connected to the counterweight box through the mounting assembly.

[0008] Specifically, the outer walls on both sides of the counterweight box are arranged to be inclined surfaces convex outward, and the sealing assembly includes two electric telescopic cylinders, which are symmetrically installed inside the protective box, and the telescopic ends of the two electric telescopic cylinders are both passed through the protective box and welded with push plates, and the end faces of the two push plates are provided with baffles, and the end faces of the two baffles are fixed with sealing heads matching the perforations.

[0009] Specifically, the shapes of the two baffles match the outer walls of the counterweight box on both sides, each push plate is connected to the baffle through a fixed connecting block, and a telescopic rod is fixed between the two push plates by bolts, and the telescopic rod is located above the protective box.

[0010] The technical solution is specific in that the telescopic end of the pneumatic telescopic cylinder is fixedly connected with a plug-in block, a fixing groove is provided on one side outer wall of the plug-in block, the end of the water suction hose is fixedly connected with a sleeve, a sealing gasket is bonded to the bottom end of the sleeve, through holes are symmetrically provided on the outer wall of the sleeve, a plug-in tube is fixedly penetrated at the center of the upper surface of the counterweight box, and the outer diameter of the plug-in tube matches the inner diameter of the sleeve.

[0011] The technical solution is specific, the installation assembly includes a fixed block, the upper surface of the fixed block is provided with a plug-in slot, the plug-in block matches the plug-in slot, a two-way threaded rod is horizontally provided on one side of the sleeve, a screw rod and a rotary handle are respectively welded at both ends of the two-way threaded rod, and movable plates are symmetrically sleeved on the two-way threaded rod, a connecting plate is welded on one side of the two movable plates, and extrusion blocks are welded on the end faces of the two connecting plates, the two extrusion blocks pass through the through hole, and the end faces of the two extrusion blocks are in close contact with the outer wall of the plug-in tube.

[0012] Specifically, the end of the screw rod is sleeved with a square sleeve, the end face of the square sleeve passes through the fixed block and is located in the plug-in groove, and the end of the square sleeve is inserted into the fixed groove, and the outer walls of both ends of the bidirectional threaded rod are sleeved with support plates, and the bottom ends of the two support plates are fixedly connected to the upper surface of the counterweight box.

[0013] Specifically, the top cover assembly includes a cover body that is sleeved on the top of the sampling bottle, the bottom inner diameter of the cover body matches the outer diameter of the sampling bottle, a top plate is provided above the cover body, a telescopic tube is connected to the center of the top of the cover body, one end of the U-shaped tube passes through the top plate and is connected to the telescopic tube, pull rods are vertically provided around the telescopic tube, the bottom ends of the four pull rods are fixedly connected to the cover body, and the top ends of the four pull rods pass through the top plate and are fixed with pull rings.

[0014] Specifically, the top plate is welded to the outer wall of the partition, four support springs are arranged between the cover body and the top plate, the four support springs are all mounted on the pull rod, and the outer walls of the four pull rods are located above the top plate and fixed with limiting plates, and the lower surfaces of the four limiting plates are in contact with the upper surface of the top plate.

[0015] Specifically, a controller is installed on the inner wall of the receiving box away from the water suction hose. The controller is fixedly connected to the pressure sensor, the water suction pump and the pneumatic telescopic cylinder through wires. The controller is connected to the control board through wireless signals, and the control board is respectively connected to the battery and the sealing assembly through wires.

[0016] In summary, the present invention mainly has the following beneficial effects: when the hose is deeply immersed in water, the present invention can prevent water from other layers from entering the hose through the blocked counterweight box. When the specified depth is reached, water sampling can be directly carried out, and impurities contained in the water can be filtered out to avoid clogging the hose. First, install the containing box on one side of the hull by bolts, then drive to the designated sampling point on the water surface, then lower the end of the water pumping hose with the counterweight box into the water, push the counterweight box and the water pumping hose down to the designated depth by the pneumatic telescopic cylinder, and restrict the water pumping hose to avoid shaking, then send a start signal to the control panel through the controller, start the electric telescopic cylinder in the plugging assembly, the telescopic end of the electric telescopic cylinder drives the baffle plate to approach the protection box, so that the plugging head is separated from the perforation, and then the water at this depth enters the counterweight box through the perforation, and then the water pump works, the plug-in pipe sucks the water in the counterweight box into the water pumping hose and discharges it from the U-shaped pipe, and the discharged water enters the sampling bottle below through the cover body and the telescopic pipe in the top cover assembly. As more and more water is collected, the weight of the sampling bottle becomes heavier, and its weight is detected by the pressure sensor to understand whether it is full, and finally the water pump stops working; At this time, the staff can use the pull ring and pull rod to drive the cover body to move up and separate it from the sampling bottle. Then remove the sampling bottle from the placement block for sealing, and put in a new sampling bottle until the sampling is completed. By rotating the handle, the square sleeve and the two extrusion blocks can be moved to separate the counterweight box from the pneumatic telescopic cylinder and the water suction hose for cleaning and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the device of the present invention; Figure 2 It is a front cross-sectional structural diagram of the present invention; Figure 3 It is the internal structure diagram of the counterweight box of the present invention; Figure 4 For the present invention Figure 1 Enlarged view of point A in the middle; Figure 5 For the present invention Figure 3 Enlarged view of point B in the middle; Figure 6 It is a schematic diagram of the structure of the top cover assembly of the present invention.

[0018] Description of the drawings: 1. accommodating box; 101. partition; 1011. fixing plate; 102. water pump; 1021. U-shaped tube; 103. controller; 2. placement block; 201. pressure sensor; 203. sampling bottle; 3. top cover assembly; 301. cover body; 302. telescopic tube; 303. top plate; 304. pull rod; 3041. pull ring; 3042. limiting plate; 3043. supporting spring; 4. water pumping hose; 401. guide wheel; 402. mounting plate; 403. sleeve; 4031. through hole; 4032. sealing pad; 5. pneumatic telescopic cylinder; 501. plug-in block; 5011, fixing slot; 6, counterweight box; 601, perforation; 602, protection box; 6021, battery; 6022, control board; 603, plug-in tube; 7, installation assembly; 701, fixing block; 7011, plug-in slot; 702, two-way threaded rod; 7021, screw rod; 7022, square sleeve; 7023, rotary handle; 703, support plate; 704, movable plate; 705, connecting plate; 706, extrusion block; 8, plugging assembly; 801, electric telescopic cylinder; 802, push plate; 803, connecting block; 804, baffle; 805, plugging head; 806, telescopic rod. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] The following describes an embodiment of the present invention based on its overall structure.

[0021] Embodiment: The installation of the containing box 1 and the hull in the present application adopts the existing technology, and the controller 103 can set the interval range of the pressure sensor 201 to automatically stop the water pump 102, wherein an iron block is provided at the bottom of the counterweight box 6 to increase its weight.

[0022] See also Figure 1 , Figure 2 and Figure 6 As shown, the water conservancy project detection sampling device includes a containing box 1, a counterweight box 6 and an internal blocking component 8. A partition 101 is fixed inside the containing box 1. A placement block 2 and a water pump 102 are respectively arranged on both sides of the partition 101. A groove is opened on the placement block 2 and a sampling bottle 203 is placed thereon. A pressure sensor 201 is embedded in the placement block 2. A top cover component 3 is arranged above the sampling bottle 203. The top cover component 3 is used to shield the extracted water quality sample. A fixing plate 1011 is welded to the top of the partition 101. A U-shaped tube 1021 is passed through the fixing plate 1011. The two ends of the U-shaped tube 1021 are respectively connected to the top cover component 3 and the water pump 102. The water pumping end of the water pump 102 is connected to a water pumping hose 4, a mounting plate 402 is fixed by bolts on one side of the top of the receiving box 1, a guide wheel 401 is fixed on the mounting plate 402, the water pumping hose 4 is located outside the receiving box 1 through the guide wheel 401, a plurality of through holes 601 are provided on both sides of the outer wall of the counterweight box 6, a plugging component 8 is provided in the counterweight box 6 for controlling the dredging of the through holes 601, a protective box 602 is fixed to the inner bottom of the counterweight box 6, a battery 6021 and a control board 6022 are respectively installed in the protective box 602, and the outer wall of the receiving box 1 is located on the mounting plate 4 A pneumatic telescopic cylinder 5 is fixed below 02, and a mounting assembly 7 is provided on the upper surface of the counterweight box 6. The end of the water suction hose 4 and the telescopic end of the pneumatic telescopic cylinder 5 are connected to the counterweight box 6 through the mounting assembly 7. A controller 103 is installed on the inner wall of the receiving box 1 away from the water suction hose 4. The controller 103 is fixedly connected to the pressure sensor 201, the water pump 102 and the pneumatic telescopic cylinder 5 through wires. The controller 103 is connected to the control board 6022 through wireless signals, and the control board 6022 is respectively connected to the battery 6021 and the blocking assembly 8 through wires.

[0023] When sampling water bodies during water conservancy project inspections, firstly, the container box 1 is bolted to one side of the hull, and then the boat is driven to the designated sampling point on the water surface, and then one end of the water pumping hose 4 with the counterweight box 6 is lowered into the water, and the counterweight box 6 and the water pumping hose 4 are pushed down to the designated depth by the pneumatic telescopic cylinder 5, and the water pumping hose 4 is restricted to avoid shaking due to the water flow, and then the staff sends a start signal to the control board 6022 in the counterweight box 6 through the controller 103, and the control board 6022 starts the driving source in the blocking component 8 after receiving the signal, so that the perforation 601 on the counterweight box 6 is unblocked, and at this time, the water at this depth enters the counterweight box 6 through the perforation 601, and the impurities in the water are filtered out under the action of the perforation 601; Then the controller 103 starts the water pump 102, and at this time the plug-in tube 603 sucks the water in the counterweight box 6 into the water suction hose 4 and discharges it from the U-shaped tube 1021. The discharged water enters the sampling bottle 203 below through the top cover assembly 3. As more and more water is collected, the weight of the sampling bottle 203 becomes heavier. After the weight reaches the set interval of the pressure sensor 201, the controller 103 determines that the water in the sampling bottle 203 is full, and then stops the water pump 102. At this time, the staff pulls the top cover assembly 3 to separate it from the sampling bottle 203, and can remove the sampling bottle 203 from the placement block 2 for sealing, and then put in a new sampling bottle 203, and move the moving hull to the next sampling point on the water surface. After the overall sampling is completed, the staff separates the counterweight box 6 from the pneumatic telescopic cylinder 5 and the water suction hose 4 through the installation assembly 7, so that they can be cleaned and maintained; Therefore, when the hose is deeply immersed in water, the present application can prevent water from other layers from entering the hose through the blocked counterweight box 6. When the specified depth is reached, water sampling can be directly pumped out, and impurities contained in the water can be filtered out to avoid clogging of the hose.

[0024] See also Figure 3 As shown, the outer walls on both sides of the counterweight box 6 are arranged to be inclined surfaces convex outward, and the blocking assembly 8 includes two electric telescopic cylinders 801, which are symmetrically installed inside the protective box 602, and the telescopic ends of the two electric telescopic cylinders 801 pass through the protective box 602 and are welded with push plates 802, and the end faces of the two push plates 802 are provided with baffles 804, and the end faces of the two baffles 804 are fixed with blocking heads 805 matching the through-holes 601, and the shapes of the two baffles 804 match the outer walls on both sides of the counterweight box 6, and each push plate 802 is connected to the baffle 804 by a fixed connecting block 803, and a telescopic rod 806 is fixed between the two push plates 802 by bolts, and the telescopic rod 806 is located above the protective box 602, wherein the telescopic rod 806 can play a certain supporting role on the top of the push plate 802.

[0025] The two electric telescopic cylinders 801 in the blocking assembly 8 are working, and the telescopic ends of the two electric telescopic cylinders 801 drive the push plate 802 to move. The moving push plate 802 drives the baffle 804 to move through the connecting block 803, and the baffle 804 drives a number of blocking heads 805 to move, so that the blocking heads 805 are moved out of or inserted into the through-hole 601, thereby realizing the connection between the counterweight box 6 and the outside. At the same time, the setting of the inclined surface allows the filtered impurities to be removed under the action of the water flow, reducing the obstruction of the through-hole 601.

[0026] See 2 and Figure 6As shown, the top cover assembly 3 includes a cover body 301 sleeved on the top of the sampling bottle 203, the bottom inner diameter of the cover body 301 matches the outer diameter of the sampling bottle 203, a top plate 303 is provided above the cover body 301, a telescopic tube 302 is connected at the top center of the cover body 301, one end of the U-shaped tube 1021 passes through the top plate 303 and is connected to the telescopic tube 302, and pull rods 304 are vertically provided around the telescopic tube 302, and the bottom ends of the four pull rods 304 are fixed to the cover body 301. Fixed connection, the top ends of the four pull rods 304 all pass through the top plate 303 and are fixed with pull rings 3041, the top plate 303 is welded to the outer wall of the partition 101, four support springs 3043 are arranged between the cover body 301 and the top plate 303, the four support springs 3043 are all sleeved on the pull rods 304, the outer walls of the four pull rods 304 are located above the top plate 303 and are fixed with limiting plates 3042, and the lower surfaces of the four limiting plates 3042 are in contact with the upper surface of the top plate 303.

[0027] The staff can drive the pull rod 304 upward by moving the pull ring 3041 upward, and the pull rod 304 drives the cover body 301 upward. The upward moved cover body 301 squeezes the support spring 3043 and the telescopic tube 302, and at the same time the cover body 301 is separated from the sampling bottle 203 covered below. When the sampling bottle 203 needs to be installed, after the cover body 301 is moved upward, the sampling bottle 203 is placed on the placement block 2, and then the pull ring 3041 is released. Under the force of gravity and the elasticity of the support spring 3043, the cover body 301 drives the pull rod 304 downward, and the downward moved pull rod 304 drives the limiting plate 3042 to move, so that the limiting plate 3042 contacts the top plate 303. The limiting plate 3042 can limit the descending distance of the cover body 301, and the descending cover body 301 covers the top opening of the sampling bottle 203, which is convenient for subsequent sampling and fixation of the sampling bottle 203.

[0028] See also Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the telescopic end of the pneumatic telescopic cylinder 5 is fixedly connected with a plug-in block 501, and a fixing groove 5011 is provided on one side outer wall of the plug-in block 501. The end of the water suction hose 4 is fixedly connected with a sleeve 403, and a sealing gasket 4032 is bonded to the bottom end of the sleeve 403. Through holes 4031 are symmetrically provided on the outer wall of the sleeve 403. A plug-in tube 603 is fixedly penetrated at the center of the upper surface of the counterweight box 6, and the outer diameter of the plug-in tube 603 matches the inner diameter of the sleeve 403. The mounting assembly 7 includes a fixed block 701, the upper surface of which is provided with a plug-in slot 7011, the plug-in block 501 matches the plug-in slot 7011, a bidirectional threaded rod 702 is horizontally provided on one side of the sleeve 403, a screw rod 7021 and a rotary handle 7023 are respectively welded at both ends of the bidirectional threaded rod 702, and movable plates 704 are symmetrically sleeved on the bidirectional threaded rod 702, one side of the two movable plates 704 are both welded with connecting plates 705, and the end faces of the two connecting plates 705 are both welded with extrusion blocks 706, The two extrusion blocks 706 pass through the through hole 4031, and the end faces of the two extrusion blocks 706 are in close contact with the outer wall of the plug-in tube 603. The end of the screw rod 7021 is sleeved with a square sleeve 7022, and the end face of the square sleeve 7022 passes through the fixed block 701 and is located in the plug-in slot 7011, and the end of the square sleeve 7022 is inserted into the fixed slot 5011. The outer walls of both ends of the two-way threaded rod 702 are sleeved with support plates 703, and the bottom ends of the two support plates 703 are fixedly connected to the upper surface of the counterweight box 6. A sliding rod is fixed between the two support plates 703 and below the two-way threaded rod 702, and one corner of the two movable plates 704 is sleeved on the sliding rod, and the movable plates 704 can be moved laterally through the sliding rod.

[0029] When disassembling the counterweight box 6, the staff manually rotates the handle 7023, and the handle 7023 drives the two-way threaded rod 702 to rotate, and the rotating two-way threaded rod 702 drives the connected screw rod 7021 to rotate. At this time, the rotation of the two-way threaded rod 702 and the screw rod 7021 can make the movable plate 704 and the square sleeve 7022 installed on their execution surface (the outer wall thread of the screw rod 7021) move, and the two movable plates 704 move in opposite directions under the action of the sliding rod according to the opposite directions of the threads on the two-way threaded rod 702. Plate 704 drives the extrusion block 706 to move through the connecting plate 705, so that the extrusion block 706 moves out of the through hole 4031 to cancel the tight clamping of the end face on the plug-in tube 603. At this time, the fixation of the sleeve 403 and the plug-in tube 603 is cancelled, and the square sleeve 7022 follows the rotation of the screw rod 7021 to move laterally under the limitation of its shape, so that the end of the square sleeve 7022 moves out of the fixing groove 5011, canceling the fixation of the fixing block 701 and the plug-in block 501, thereby completing the separation of the counterweight box 6 from the pneumatic telescopic cylinder 5 and the water suction hose 4.

[0030] According to the above embodiment, the operation steps are as follows: Step 1: The hose is submerged in the water to a specified depth. The container box 1 is installed on one side of the hull by bolts, and then one end of the water-supply hose 4 with the counterweight box 6 is lowered into the water. When the specified depth is reached, the pneumatic telescopic cylinder 5 extends along with the descent of the counterweight box 6, and restricts the water-supply hose 4 to prevent shaking. Step 2: Pumping water for sampling. The baffle 804 in the weight box 6 moves so that the plugging head 805 moves out of the perforation 601. Water at this depth can enter the weight box 6 through the perforation 601. Then the water pump 102 works to send the pumped water into the sampling bottle 203 placed under the top cover assembly 3 through the plug-in tube 603 and the water pump hose 4. Under the action of the pressure sensor 201, it is determined whether the sampling bottle 203 is full, and then the cover 301 is moved upward by pulling the pull ring 3041 upward, so that the cover 301 is separated from the sampling bottle 203, and finally the sampling bottle 203 is taken out from the placement block 2; Step three, disassembly and cleaning. After the water quality sampling is completed, the counterweight box 6 can be removed from the pneumatic telescopic cylinder 5 and the water suction hose 4 through the installation component 7, and the impurities attached to the outer wall and the interior are cleaned, and the water suction hose 4 is cleaned at the same time.

[0031] The working principle of the present invention is: When sampling water bodies during water conservancy project inspections, firstly, the containing box 1 is bolted to one side of the hull, and then the boat is driven to the designated sampling point on the water surface, and then one end of the water pumping hose 4 with the counterweight box 6 is lowered into the water, and the counterweight box 6 and the water pumping hose 4 are pushed down to the designated depth by the pneumatic telescopic cylinder 5, and the water pumping hose 4 is restricted to avoid shaking due to the water flow, and then the staff sends a start signal to the control board 6022 in the counterweight box 6 through the controller 103, and the control board 6022 starts the two electric telescopic cylinders 801 in the plugging assembly 8 after receiving the signal, and the telescopic ends of the two electric telescopic cylinders 801 drive the push plate 802 to move, and the moving push plate 802 drives the baffle 804 to move through the connecting block 803, and the baffle 804 drives a plurality of plugging heads 805 to move, so that the plugging heads 805 move out of the perforation 601, and at this time, the water at this depth enters the counterweight box 6 through the perforation 601, and the impurities in the water are filtered out under the action of the perforation 601; Then the controller 103 starts the water pump 102, and the plug-in tube 603 sucks the water in the counterweight box 6 into the water hose 4 and discharges it from the U-shaped tube 1021. The discharged water enters the sampling bottle 203 below through the top cover assembly 3. As more and more water is collected, the weight of the sampling bottle 203 becomes heavier. After the weight reaches the set range of the pressure sensor 201, the controller 103 determines that the water in the sampling bottle 203 is full, and then stops the water pump 102. At this time, the staff can drive the pull rod 304 to move upward by moving the pull ring 3041 upward, and the pull rod 304 drives the cover body 301 to move upward, and the upward cover body 301 supports the support spring 30 43 and the telescopic tube 302 are squeezed, and at the same time, the cover body 301 is separated from the sampling bottle 203 covered below, so that the sampling bottle 203 can be taken out from the placement block 2 for sealing, and then a new sampling bottle 203 is put in, and the pull ring 3041 is loosened. Under the force of gravity and the elasticity of the supporting spring 3043, the cover body 301 drives the pull rod 304 to move downward, and the downward moving pull rod 304 drives the limiting plate 3042 to move, so that the limiting plate 3042 contacts with the top plate 303, and the limiting plate 3042 can limit the descending distance of the cover body 301, and the descending cover body 301 covers the top opening of the sampling bottle 203, and then moves to the next sampling point on the water surface on the moving hull.

[0032] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A water conservancy project detection sampling device, comprising a containing box (1), a pneumatic telescopic cylinder (5), a counterweight box (6), a protective box (602) and an internal blocking component (8), characterized in that A partition (101) is fixed inside the storage box (1), and a placement block (2) and a water pump (102) are respectively provided on both sides of the partition (101), a groove is provided on the placement block (2) and a sampling bottle (203) is placed thereon, a pressure sensor (201) is embedded in the placement block (2), a top cover assembly (3) is provided above the sampling bottle (203), and the top cover assembly (3) is used to shield the extracted water quality sample, a fixing plate (1011) is welded to the top end of the partition (101), a U-shaped tube (1021) is passed through the fixing plate (1011), and the two ends of the U-shaped tube (1021) are respectively connected to the top cover assembly (3) and the water pump (102).

2. The water conservancy project detection sampling device according to claim 1 is characterized in that: The water pump (102) is connected to a water pump hose (4) at the water pumping end. A mounting plate (402) is fixed to one side of the top end of the receiving box (1) by bolts. A guide wheel (401) is fixed to the mounting plate (402). The water pump hose (4) is located outside the receiving box (1) through the guide wheel (401). The outer walls of both sides of the counterweight box (6) are provided with a plurality of through holes (601). A blocking component (8) is provided in the counterweight box (6) for controlling the drainage of the through holes (601). A protective box (602) is fixed to the inner bottom of the counterweight box (6), and a storage battery (6021) and a control panel (6022) are respectively installed in the protective box (602); a pneumatic telescopic cylinder (5) is fixed to the outer wall of the storage box (1) below the mounting plate (402); a mounting assembly (7) is provided on the upper surface of the counterweight box (6); and the end of the water suction hose (4) and the telescopic end of the pneumatic telescopic cylinder (5) are connected to the counterweight box (6) via the mounting assembly (7).

3. The water conservancy project detection sampling device according to claim 1 is characterized in that: The outer walls on both sides of the counterweight box (6) are arranged to be inclined surfaces convex outwards, and the blocking assembly (8) comprises two electric telescopic cylinders (801), the two electric telescopic cylinders (801) are symmetrically mounted inside the protective box (602), the telescopic ends of the two electric telescopic cylinders (801) both pass through the protective box (602) and are welded with push plates (802), the end surfaces of the two push plates (802) are both provided with baffles (804), and the end surfaces of the two baffles (804) are both fixed with blocking heads (805) matching the through holes (601).

4. The water conservancy project detection sampling device according to claim 3 is characterized in that: The shapes of the two baffles (804) match the outer walls of the counterweight box (6) on both sides, each of the push plates (802) is connected to the baffle (804) via a fixed connecting block (803), and a telescopic rod (806) is fixed between the two push plates (802) via bolts, and the telescopic rod (806) is located above the protective box (602).

5. The water conservancy project detection sampling device according to claim 2, characterized in that: The telescopic end of the pneumatic telescopic cylinder (5) is fixedly connected to a plug-in block (501), and a fixing groove (5011) is provided on one side outer wall of the plug-in block (501). The end of the water suction hose (4) is fixedly connected to a sleeve (403), and a sealing gasket (4032) is bonded to the bottom end of the sleeve (403). Through holes (4031) are symmetrically provided on the outer wall of the sleeve (403). A plug-in tube (603) is fixedly penetrated at the center of the upper surface of the counterweight box (6), and the outer diameter of the plug-in tube (603) matches the inner diameter of the sleeve (403).

6. The water conservancy project detection sampling device according to claim 5, characterized in that: The mounting assembly (7) comprises a fixing block (701), the upper surface of which is provided with a plug-in slot (7011), the plug-in block (501) being matched with the plug-in slot (7011), a bidirectional threaded rod (702) being horizontally provided on one side of the sleeve (403), a screw rod (7021) and a rotary handle (7023) being respectively welded to two ends of the bidirectional threaded rod (702), movable plates (704) being symmetrically sleeved on the bidirectional threaded rod (702), a connecting plate (705) being welded to one side of the two movable plates (704), an extrusion block (706) being welded to the end faces of the two connecting plates (705), the two extrusion blocks (706) being passed through the through hole (4031), and the end faces of the two extrusion blocks (706) being in close contact with the outer wall of the plug-in tube (603).

7. The water conservancy project detection sampling device according to claim 6, characterized in that: The end of the screw rod (7021) is sleeved with a square sleeve (7022), the end surface of the square sleeve (7022) passes through the fixing block (701) and is located in the plug-in slot (7011), and the end of the square sleeve (7022) is inserted into the fixing slot (5011), and the outer walls at both ends of the bidirectional threaded rod (702) are sleeved with support plates (703), and the bottom ends of the two support plates (703) are fixedly connected to the upper surface of the counterweight box (6).

8. The water conservancy project detection sampling device according to claim 1, characterized in that: The top cover assembly (3) comprises a cover body (301) sleeved on the top of the sampling bottle (203), the inner diameter of the bottom of the cover body (301) matches the outer diameter of the sampling bottle (203), a top plate (303) is provided above the cover body (301), a telescopic tube (302) is connected at the center of the top of the cover body (301), one end of the U-shaped tube (1021) passes through the top plate (303) and is connected to the telescopic tube (302), and pull rods (304) are vertically provided around the telescopic tube (302), the bottom ends of the four pull rods (304) are fixedly connected to the cover body (301), and the top ends of the four pull rods (304) pass through the top plate (303) and are fixed with pull rings (3041).

9. The water conservancy project detection sampling device according to claim 8, characterized in that: The top plate (303) is welded to the outer wall of the partition (101), and four support springs (3043) are provided between the cover body (301) and the top plate (303). The four support springs (3043) are all sleeved on the pull rod (304), and the outer walls of the four pull rods (304) are located above the top plate (303) and fixed with limiting plates (3042), and the lower surfaces of the four limiting plates (3042) are in contact with the upper surface of the top plate (303).

10. The water conservancy project detection sampling device according to claim 2, characterized in that: A controller (103) is installed on the inner wall of the receiving box (1) at a side away from the water suction hose (4); the controller (103) is fixedly connected to the pressure sensor (201), the water suction pump (102) and the pneumatic telescopic cylinder (5) via wires; the controller (103) is connected to the control panel (6022) via wireless signals; and the control panel (6022) is respectively connected to the storage battery (6021) and the blocking component (8) via wires.

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