Sampler for underground water sampling

Abstract

The invention discloses a sampler for underground water sampling, and belongs to the technical field of hydrogeological prospecting, the sampler for underground water sampling comprises a moving frame, a blocking block and an overturning cover are arranged, and when the sampler is used for assisting underground water sampling, the blocking block and the overturning cover are arranged to improve the shielding and sealing effects of a sampling opening when the sampling opening is not used; a second servo motor can be turned on to drive a blocking block fixedly connected with a telescopic rod to stretch out and draw back along the inner wall of the sampling opening through rotation of a threaded rod, so that the blocking block is not in contact with the sampling opening, and the sampling opening is prevented from being exposed outside to be placed in a diving manner; a threaded sliding rod slides to drive an overturning cover to perform overturning motion through rotation of a second rotating rod, so that the end part of a sampling opening is exposed outside, the effect that the sampling opening is communicated with the inner wall of the sampling box for use is achieved, and the linkage effect of soil prevention and effective sealing on the sampling opening when the sampling box is not used is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogeological exploration, and in particular to a sampler for groundwater sampling. Background Art

[0002] Water in various states that is widely buried below the surface is collectively referred to as groundwater; atmospheric precipitation is the main source of groundwater; according to different underground burial conditions, groundwater can be divided into three categories: upper stagnant water, groundwater and artesian water; according to burial conditions, it can be divided into vadose zone water, groundwater and pressurized water; according to burial media, it can be divided into pore water, fissure water and karst water; groundwater is an important component of water resources, and due to its stable water volume and good water quality, it is one of the important water sources for agricultural irrigation, industry, mining and cities; but under certain conditions, changes in groundwater can also cause adverse natural phenomena such as swamping, salinization, landslides, ground subsidence, and when sampling and testing groundwater, it will be necessary to collect and sample groundwater through a sampler.

[0003] After searching, according to the patent network CN113495017A, a groundwater rapid average sampler is published, including a box body, a fixed plate is fixedly connected between the middle of the left box wall and the middle of the right box wall of the box body, the middle of the upper end of the fixed plate is movably connected to a rotating table through a bearing, five fixing devices are fixedly connected to the upper end periphery of the rotating table, and collecting bottles are clamped in the five fixing devices, a rotating device is inserted and movably connected to the left upper end of the box body, a pumping device is inserted and fixedly connected to the right upper end of the box body, a water pipe is inserted and fixedly connected to the middle of the right end of the pumping device, a push handle is fixedly connected to the lower right end of the box body, a limiting ring is fixedly connected to the middle of the right end of the box body, and a line-laying device is movably connected between the lower left box wall and the lower right box wall of the box body. The invention is a groundwater rapid average sampler, the sampler has a fast sampling speed, and can sample and classify groundwater at different depths, and is suitable for wide use.

[0004] After searching, according to the patent network CN112857891B, a groundwater stratified sampler is published, including a base, the bottom of the base is fixedly connected with a leg, the top of the base is fixedly connected with a fixing plate, and the top of the fixing plate is fixedly connected with an electrical box. When the invention is in use, the sampling box is lowered by starting the servo motor. In this process, the push rod will push the positioning rod downward to move downward while rotating along the inner wall of the leg. When the positioning rod reaches the specified position, the outer wall of the gear cannot engage with the outer wall of the push rod due to the setting of the buffer spring, preventing the gear from being damaged when the sampling box is lowered. In the process of the sampling box being lowered, the outer wall of the sampling box is cleaned by a brush to ensure the cleanliness of the outer surface of the sampling box, prevent the dust adhered to the outer wall of the sampling box from polluting the groundwater and affecting the use of personnel, thereby ensuring the health and safety of personnel and improving the stability of the device when sampling groundwater.

[0005] However, although the existing sampler can collect and sample groundwater well when in use, when the sampler is lowered to the area to be collected, the synchronous protection effect of the internal seal of the sampling tube and the port of the sampling tube is not high, and the sampling and collection effect of the sampler adjusted at different positions in the same area to be collected is not high, so that when the sampler is lowered for sampling, it will cause the sampler to collide with the inner wall of the underground, causing dust to enter the sampling tube. After the seal is opened, the flushing of the water flow causes soil to enter the sampling box, affecting the purity of the groundwater sampling. At the same time, the anti-sway effect of the adjustment of the connecting cable when it is lowered is not high, which affects the shaking feeling of the sampling box when it is lowered, reduces the stability of the sampling box during sampling, and does not meet people's use needs. For this reason, we propose a sampler for groundwater sampling. Summary of the invention

[0006] The object of the present invention is to provide a sampler for groundwater sampling, so as to solve the problems raised in the above-mentioned background technology that the internal sealing of the sampling tube and the synchronous protection at the port of the sampling tube are not effective, the adjustment of the sampling and collection of the sampler at different positions in the same sampling area is not effective, and the anti-sway adjustment effect of the connecting cable when it is lowered is not effective.

[0007] The present invention is implemented as follows: a sampler for groundwater sampling, comprising a mobile frame, the mobile frame comprising a winding roller, a connecting cable, a hanging ring, a sampling box, an anti-collision pad, a sampling tube and an anti-collision mechanism arranged on the side wall of the sampling box, the top of the mobile frame is fixedly connected to a connecting rod, the outer wall of the connecting rod is fixedly connected to a first servo motor, the output end of the first servo motor is fixedly connected to a winding roller rotatably connected to the outer wall of the connecting rod, the outer wall of the winding roller is provided with a connecting cable, one end of the connecting cable is fixedly connected to a hanging ring, the outer wall of the hanging ring is hung with a sampling box, the bottom of the sampling box is fixedly connected to an anti-collision pad, and the side wall of the sampling box is fixedly connected to a sampling tube;

[0008] The anti-collision mechanism includes a lifting assembly, a first telescopic assembly, a flip assembly, and a second telescopic assembly;

[0009] The lifting assembly includes a threaded rod, a second servo motor, a threaded slide rod and a fixing groove, the outer wall of the sampling tube is rotatably connected to the threaded rod, one end of the threaded rod is fixedly connected to the second servo motor, the outer wall of the threaded rod is threadedly connected to the threaded slide rod slidably connected to the outer wall of the sampling tube, and a fixing groove is provided at the connection position between the outer wall of the sampling tube and the threaded slide rod;

[0010] The first telescopic assembly comprises a first rotating rod, a telescopic rod and a blocking block, the outer wall of the threaded sliding rod is rotatably connected to the first rotating rod, one end of the first rotating rod is rotatably connected to the telescopic rod slidably connected to the outer wall of the sampling box, and one end of the telescopic rod is fixedly connected to the blocking block slidably connected to the inner wall of the sampling tube;

[0011] The flip assembly comprises a second rotating rod, a flip cover and a connecting hinge, the outer wall of the threaded sliding rod is rotatably connected to the second rotating rod located on one side of the first rotating rod, one end of the second rotating rod is rotatably connected to the flip cover rotatably connected to the end of the sampling tube, and the connecting portion of the flip cover and the sampling tube is provided with a connecting hinge;

[0012] The second telescopic assembly includes a swing rod, a first limiting groove, a sliding rod and a protective baffle. The outer wall of the threaded sliding rod is slidably connected to the swing rod rotatably connected to the outer wall of the sampling tube. The connecting portion between the outer wall of the swing rod and the threaded sliding rod is provided with a first limiting groove. The outer wall of the swing rod is slidably connected to the sliding rod slidably connected to the outer wall of the sampling tube. The connecting portion between the outer wall of the swing rod and the sliding rod is provided with a second limiting groove. One end of the sliding rod is fixedly connected to the protective baffle.

[0013] Preferably, a protective mechanism is provided on the top of the movable frame, and a lifting mechanism is provided on the inner side wall of the movable frame.

[0014] Preferably, the threaded sliding rod forms a lifting structure through the threaded rod and the fixed groove, the first rotating rod forms a rotating structure through the threaded sliding rod and the telescopic rod, the position distribution of the first rotating rod and the second rotating rod is symmetrical about the central axis of the threaded sliding rod, and the sampling tube is arranged in an "I" shape on both sides of the sampling box.

[0015] Preferably, the blocking block forms a telescopic structure with the sampling tube through the first rotating rod and the telescopic rod, the second rotating rod forms a rotating structure with the flip cover through the threaded sliding rod, and two groups of connecting hinges are provided, and the position distribution of the two groups of connecting hinges is symmetrical about the central axis of the flip cover.

[0016] Preferably, the sliding rod forms a sliding structure with the sampling tube through the swing rod and the second limit groove, the positions of the first limit groove and the second limit groove are equidistantly distributed about the rotation center of the swing rod, and the protective baffle forms a telescopic structure with the sliding rod and the sampling tube, the outer wall profile of the protective baffle is in a "U" shape, and the sliding rods are provided in four groups, and the positions of the four groups of sliding rods are distributed around the protective baffle.

[0017] Preferably, the protective mechanism includes a third servo motor, a rotating rod, a sliding block, a slide groove, an adjustment groove, a first protective block and a first fixed block, the top of the movable frame is fixedly connected to the third servo motor, the output end of the third servo motor is fixedly connected to the rotating rod rotatably connected to the top of the movable frame, the outer wall of the rotating rod is slidably connected to the sliding block slidably connected to the top of the movable frame, a slide groove is provided at the connecting part between the top of the movable frame and the sliding block, an adjustment groove is provided at the connecting part between the outer wall of the rotating rod and the sliding block, the outer wall of the sliding block is fixedly connected to the first protective block located on one side of the connecting cable, and the top of the movable frame is fixedly connected to the first fixed block located on one side of the connecting cable.

[0018] Preferably, the sliding block forms a sliding structure through a rotating rod and a sliding groove and an adjusting groove, and the outer wall contours of the first protective block and the first fixed block are semicircular.

[0019] Preferably, the lifting mechanism includes a connecting block, a second protective block, a pulling rod, an extension block, a second fixed block and a second limiting groove, the bottom of the sliding block is fixedly connected to the connecting block, the outer wall of the connecting block is fixedly connected to the second protective block, the outer wall of the connecting block is rotatably connected to the pulling rod, one end of the pulling rod is rotatably connected to the extension block slidably connected to the inner wall of the second protective block, and the inner side wall of the movable frame is fixedly connected to the second fixed block located on one side of the second protective block.

[0020] Preferably, the connecting block forms a sliding structure through the sliding block and the sliding groove, the pulling rod forms a rotating structure through the connecting block and the extension block, the extension block forms a lifting structure through the pulling rod and the second protective block, and a connecting groove is provided at the connecting portion between the inner wall of the second protective block and the extension block.

[0021] The sampler for groundwater sampling provided by the present invention has the following beneficial effects when used:

[0022] 1. A sampler for groundwater sampling, by providing a blocking block and a flip cover, when the sampler is used to assist groundwater sampling, in order to improve the shielding and sealing effect of the sampling port when not in use, to prevent the soil from entering the sampling box when the sampling port is exposed to the outside for diving, causing the purity of water resources in the sampling box to decrease, after the sampling box is lowered to the underground area to be sampled, the second servo motor can be turned on to drive the threaded slide bar to slide along the inner wall of the fixed groove through the rotation of the threaded rod, and the sliding of the threaded slide bar drives the blocking block fixedly connected to the telescopic rod to telescope along the inner wall of the sampling port through the rotation of the first rotating rod, so that the blocking block does not contact the sampling port, and at the same time, the sliding of the threaded slide bar drives the flip cover to flip through the rotation of the second rotating rod and under the connection of the connecting hinge, so that the end of the sampling port is exposed to the outside, so as to achieve the effect of the sampling port and the inner wall of the sampling box being connected for use, thereby improving the linkage effect of preventing soil and effectively sealing the sampling port when the sampling box is not in use.

[0023] 2. This sampler for groundwater sampling is provided with a protective baffle. When the sampler dives underground through the sampling box to sample groundwater, in order to improve the effect of effectively supporting and preventing both sides of the sampling box from being bumped when the sampling port is gradually opened to take water, the threaded sliding rod slides along the inner wall of the first limit groove while the threaded sliding rod slides, so as to achieve the effect of driving the swing rod to rotate conveniently. When the swing rod rotates, the sliding rod is driven to slide along the inner wall of the second limit groove, and the protective baffle fixedly connected to the sliding rod is driven to telescope along the outer wall of the sampling tube, so as to achieve the effect of effectively supporting and preventing the end of the sampling port and the inner wall of the underground from being bumped, thereby improving the purity of the sampling box for groundwater sampling.

[0024] 3. This sampler for groundwater sampling is provided with a first protective block. When the connecting cable is lowered for sampling through a winding roller, in order to prevent the connecting cable from swaying left and right when the sampling box is lowered, causing the sampling box to collide with the inner wall of the underground, when the connecting cable is lowered, the third servo motor can be turned on to drive the sliding block to slide synchronously along the inner wall of the slide groove and the adjustment groove through the rotation of the rotating rod. At the same time, the sliding of the sliding block drives the first protective block to perform telescopic movement, and under the connection of the first fixed block, the area where the connecting cable has just been lowered is effectively prevented from swaying, thereby improving the stability of the lowering of the sampling box.

[0025] 4. This sampler for groundwater sampling is provided with an extension block. When the sampling box is lowered for use through a connecting cable, in order to increase the protection area of ​​the protection block to prevent the connecting cable from shaking when the connecting block slides, the second protection block is driven to perform synchronous telescopic movement through the connection of the connecting block. At the same time, under the rotation connection of the pull rod, the extension block is driven to perform telescopic movement along the inner wall of the second protection block, thereby facilitating the adjustment of the protection area of ​​the connecting cable to prevent shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. As shown in the accompanying drawings, the above and other purposes, features and advantages of the present invention will be clearer. The same reference numerals in all the drawings indicate the same parts. The drawings are not deliberately scaled to the actual size, and the focus is on illustrating the main purpose of the present invention.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the overall side view structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the cross-sectional structure of the connection between the sampling box and the sampling port of the present invention;

[0030] Figure 4 It is a schematic diagram of the sampling port position distribution structure of the present invention;

[0031] Figure 5 It is a schematic cross-sectional view of the connection between the blocking block and the sampling port of the present invention;

[0032] Figure 6 It is a schematic diagram of the position distribution structure of the first rotating rod and the second rotating rod of the present invention;

[0033] Figure 7 It is a schematic diagram of the position distribution structure of the swing rod of the present invention;

[0034] Figure 8 It is a schematic diagram of the position distribution structure of the rotating rod of the present invention;

[0035] Fig. 9 It is a schematic diagram of the extension block position distribution structure of the present invention.

[0036] Summary of reference numerals: 1, mobile frame; 2, connecting rod; 3, first servo motor; 4, winding roller; 5, connecting cable; 6, hanging ring; 7, sampling box; 8, anti-collision pad; 9, sampling tube; 10, threaded rod; 11, second servo motor; 12, threaded sliding rod; 13, fixed groove; 14, first rotating rod; 15, telescopic rod; 16, blocking block; 17, second rotating rod; 18, flip cover; 19, connecting hinge; 20, swing rod; 21, first limit groove; 22. Sliding rod; 23. Protective baffle; 24. Protective mechanism; 2401. Third servo motor; 2402. Rotating rod; 2403. Sliding block; 2404. Sliding slot; 2405. Adjusting slot; 2406. First protective block; 2407. First fixed block; 25. Lifting mechanism; 2501. Connecting block; 2502. Second protective block; 2503. Pulling rod; 2504. Extension block; 2505. Second fixed block; 26. Second limiting slot. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0040] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0041] For examples, see Figures 1 to 9, the present embodiment provides a sampler for groundwater sampling, comprising a mobile frame 1, the mobile frame 1 comprising a winding roller 4, a connecting cable 5, a hanging ring 6, a sampling box 7, an anti-collision pad 8, a sampling tube 9 and an anti-collision mechanism arranged on the side wall of the sampling box 7, the top of the mobile frame 1 is fixedly connected to a connecting rod 2, the outer wall of the connecting rod 2 is fixedly connected to a first servo motor 3, the output end of the first servo motor 3 is fixedly connected to a winding roller 4 rotatably connected to the outer wall of the connecting rod 2, the outer wall of the winding roller 4 is provided with a connecting cable 5, one end of the connecting cable 5 is fixedly connected to a hanging ring 6, the outer wall of the hanging ring 6 is hung with a sampling box 7, the bottom of the sampling box 7 is fixedly connected to an anti-collision pad 8, and the side wall of the sampling box 7 is fixedly connected to a sampling tube 9;

[0042] The anti-collision mechanism includes a lifting assembly, a first telescopic assembly, a flip assembly, and a second telescopic assembly;

[0043] The lifting assembly includes a threaded rod 10, a second servo motor 11, a threaded slide rod 12 and a fixing groove 13. The outer wall of the sampling tube 9 is rotatably connected to the threaded rod 10, one end of the threaded rod 10 is fixedly connected to the second servo motor 11, the outer wall of the threaded rod 10 is threadedly connected to the threaded slide rod 12 which is slidably connected to the outer wall of the sampling tube 9, and the connecting portion of the outer wall of the sampling tube 9 and the threaded slide rod 12 is provided with a fixing groove 13;

[0044] The first telescopic assembly includes a first rotating rod 14, a telescopic rod 15 and a blocking block 16. The outer wall of the threaded sliding rod 12 is rotatably connected to the first rotating rod 14. One end of the first rotating rod 14 is rotatably connected to the telescopic rod 15 that is slidably connected to the outer wall of the sampling box 7. One end of the telescopic rod 15 is fixedly connected to the blocking block 16 that is slidably connected to the inner wall of the sampling tube 9.

[0045] The flip assembly includes a second rotating rod 17, a flip cover 18 and a connecting hinge 19. The outer wall of the threaded sliding rod 12 is rotatably connected to the second rotating rod 17 located on one side of the first rotating rod 14. One end of the second rotating rod 17 is rotatably connected to the flip cover 18 rotatably connected to the end of the sampling tube 9. The connecting portion of the flip cover 18 and the sampling tube 9 is provided with a connecting hinge 19.

[0046] The second telescopic assembly includes a swing rod 20, a first limiting groove 21, a sliding rod 22 and a protective baffle 23. The outer wall of the threaded sliding rod 12 is slidably connected to the swing rod 20 that is rotatably connected to the outer wall of the sampling tube 9. The connecting portion between the outer wall of the swing rod 20 and the threaded sliding rod 12 is provided with a first limiting groove 21. The outer wall of the swing rod 20 is slidably connected to the sliding rod 22 that is slidably connected to the outer wall of the sampling tube 9. The connecting portion between the outer wall of the swing rod 20 and the sliding rod 22 is provided with a second limiting groove 26. One end of the sliding rod 22 is fixedly connected to the protective baffle 23.

[0047] Furthermore, a protective mechanism 24 is provided on the top of the mobile frame 1, and a lifting mechanism 25 is provided on the inner wall of the mobile frame 1. This is beneficial for effectively preventing the connecting cable 5 from shaking when it is lowered through the setting of the protective mechanism 24, and is beneficial for conveniently adjusting the protective area of ​​the connecting cable 5 to prevent shaking through the setting of the lifting mechanism 25.

[0048] Furthermore, the threaded slide rod 12 forms a lifting structure through the threaded rod 10 and the fixed groove 13, and the first rotating rod 14 forms a rotating structure through the threaded slide rod 12 and the telescopic rod 15. The position distribution of the first rotating rod 14 and the second rotating rod 17 is symmetrical about the central axis of the threaded slide rod 12. The sampling tube 9 is arranged in an "I" shape on both sides of the sampling box 7, which is conducive to the rotation of the threaded rod 10, driving the threaded slide rod 12 to slide along the inner wall of the fixed groove 13, and facilitating the sliding of the threaded slide rod 12 through the connection of the telescopic rod 15, driving the first rotating rod 14 to rotate conveniently, and playing a role in driving the blocking block 16 to telescope conveniently, thereby achieving the effect of effectively preventing dust from the sampling tube, and facilitating the sampling tube 9 to be arranged in an "I" shape on both sides of the sampling box 7, so as to adjust the sampling at different positions of the same area to be collected.

[0049] Furthermore, the blocking block 16 forms a telescopic structure with the sampling tube 9 through the first rotating rod 14 and the telescopic rod 15, and the second rotating rod 17 forms a rotating structure with the flip cover 18 through the threaded sliding rod 12. Two groups of connecting hinges 19 are provided, and the position distribution of the two groups of connecting hinges 19 is symmetrical about the central axis of the flip cover 18, which is conducive to the rotation of the first rotating rod 14 through the connection of the telescopic rod 15, driving the blocking block 16 to perform telescopic movement along the inner wall of the sampling tube 9, and is conducive to the sliding of the threaded sliding rod 12 through the rotation of the second rotating rod 17, driving the flip cover 18 to perform convenient flipping movement, thereby improving the linkage effect of preventing mud and effectively sealing the sampling port of the sampling box 7 when not in use.

[0050] Furthermore, the sliding rod 22 forms a sliding structure with the sampling tube 9 through the swing rod 20 and the second limit groove 26. The positions of the first limit groove 21 and the second limit groove 26 are equidistantly distributed about the rotation center of the swing rod 20. The protective baffle 23 forms a telescopic structure with the sliding rod 22 and the sampling tube 9. The outer wall profile of the protective baffle 23 is in a "U" shape. Four groups of sliding rods 22 are arranged. The positions of the four groups of sliding rods 22 are evenly distributed around the protective baffle 23, which is beneficial to the rotation of the swing rod 20, driving the sliding rod 22 to synchronously slide along the second limit groove 26 and the outer wall of the sampling tube 9, which is beneficial to the sliding of the sliding rod 22, driving the protective baffle 23 to telescopically move along the side wall of the sampling tube 9, thereby achieving the effect of effectively supporting and preventing the end of the sampling port and the underground inner wall from being bumped, thereby improving the sampling purity of the sampling box 7 for groundwater.

[0051] Furthermore, the protection mechanism 24 includes a third servo motor 2401, a rotating rod 2402, a sliding block 2403, a slide groove 2404, an adjusting groove 2405, a first protection block 2406 and a first fixed block 2407. The top of the mobile frame 1 is fixedly connected with the third servo motor 2401, the output end of the third servo motor 2401 is fixedly connected with the rotating rod 2402 rotatably connected to the top of the mobile frame 1, the outer wall of the rotating rod 2402 is slidably connected with the sliding block 2403 slidably connected to the top of the mobile frame 1, the connecting part of the top of the mobile frame 1 and the sliding block 2403 is provided with a slide groove 2404, the connecting part of the outer wall of the rotating rod 2402 and the sliding block 2403 is provided with an adjusting groove 2405, and the outer wall of the sliding block 2403 is fixedly connected with the first protection block 2406 located on one side of the connecting cable 5. 406. The top of the mobile frame 1 is fixedly connected with a first fixed block 2407 located on one side of the connecting cable 5. By setting the first protective block 2406, it is beneficial to prevent the connecting cable 5 from shaking left and right when the sampling box 7 is descending and causing the sampling box 7 to collide with the inner wall of the underground when the connecting cable 5 is lowered through the winding roller 4. When the connecting cable 5 is descending, the third servo motor 2401 can be turned on to rotate the rotating rod 2402 to drive the sliding block 2403 to slide synchronously along the inner wall of the slide groove 2404 and the adjusting groove 2405. At the same time, the sliding of the sliding block 2403 drives the first protective block 2406 to perform telescopic movement, and under the connection of the first fixed block 2407, the area where the connecting cable 5 has just been lowered is effectively prevented from shaking, thereby improving the stability of the lowering of the sampling box 7.

[0052] Furthermore, the sliding block 2403 forms a sliding structure through the rotating rod 2402 and the sliding groove 2404 and the adjusting groove 2405. The outer wall contours of the first protective block 2406 and the first fixed block 2407 are semicircular, which is conducive to the rotation of the rotating rod 2402, driving the sliding block 2403 to slide along the inner walls of the sliding groove 2404 and the adjusting groove 2405, thereby driving the first protective block 2406 to conveniently extend and retract.

[0053] Furthermore, the lifting mechanism 25 includes a connecting block 2501, a second protective block 2502, a pulling rod 2503, an extension block 2504, a second fixed block 2505 and a second limiting groove 26. The bottom of the sliding block 2403 is fixedly connected with the connecting block 2501, the outer wall of the connecting block 2501 is fixedly connected with the second protective block 2502, the outer wall of the connecting block 2501 is rotatably connected with the pulling rod 2503, one end of the pulling rod 2503 is rotatably connected with the extension block 2504 slidably connected to the inner wall of the second protective block 2502, and the inner wall of the mobile frame 1 is fixedly connected with the second protective block 2502. The second fixed block 2505 on one side of the block 2502 is provided with an extension block 2504. When the sampling box 7 is lowered for use through the connecting cable 5, in order to increase the protection area of ​​the protection block to prevent the connecting cable 5 from shaking when the connecting block 2501 is lowered, when the sliding block 2403 slides, the second protection block 2502 is driven to perform synchronous telescopic movement through the connection with the connecting block 2501. At the same time, under the rotation connection of the pull rod 2503, the extension block 2504 is driven to perform telescopic movement along the inner wall of the second protection block 2502, thereby facilitating the adjustment of the protection area of ​​the connecting cable 5 to prevent shaking.

[0054] Furthermore, the connecting block 2501 forms a sliding structure through the sliding block 2403 and the sliding groove 2404, the pulling rod 2503 forms a rotating structure through the connecting block 2501 and the extension block 2504, and the extension block 2504 forms a lifting structure through the pulling rod 2503 and the second protective block 2502. A connecting groove is provided at the connecting portion between the inner wall of the second protective block 2502 and the extension block 2504, which is beneficial for the sliding of the connecting block 2501 through the connection of the extension block 2504, driving the pulling rod 2503 to rotate conveniently, thereby facilitating the adjustment of the protective area against shaking of the connecting cable 5.

[0055] like Figure 1As shown, the sampler for groundwater sampling, when in use, first, when the sampler is used to assist groundwater sampling, in order to improve the shielding and sealing effect of the sampling port when not in use, to prevent the sampling port from being exposed to the outside and soil from entering the sampling box 7 when it is submerged, causing the purity of the water resources in the sampling box 7 to decrease, after the sampling box 7 is lowered to the area to be sampled underground, the second servo motor 11 can be turned on to drive the threaded slide rod 12 to slide along the inner wall of the fixed groove 13 through the rotation of the threaded rod 10, and the sliding of the threaded slide rod 12 The first rotating rod 14 rotates to drive the blocking block 16 fixedly connected to the telescopic rod 15 to extend and retract along the inner wall of the sampling port, so that the blocking block 16 does not contact the sampling port. At the same time, the sliding of the threaded sliding rod 12 drives the flip cover 18 to flip through the rotation of the second rotating rod 17 and the connection of the connecting hinge 19, so that the end of the sampling port is exposed to the outside, so that the sampling port and the inner wall of the sampling box 7 are connected for use, which improves the linkage effect of preventing mud and effectively sealing the sampling port when the sampling box 7 is not in use;

[0056] Next, when diving to the bottom through the sampling box 7 to sample groundwater, in order to improve the effect of effectively supporting and preventing both sides of the sampling box 7 from being knocked when the sampling port is gradually opened to take water, the threaded sliding rod 12 is driven to slide along the inner wall of the first limiting groove 21 while the threaded sliding rod 12 slides, so as to achieve the effect of driving the swing rod 20 to rotate conveniently. Under the rotation of the swing rod 20, the sliding rod 22 is driven to slide along the inner wall of the second limiting groove 26, and the protective baffle 23 fixedly connected to the sliding rod 22 is driven to telescope along the outer wall of the sampling tube, so as to achieve the effect of effectively supporting and preventing the end of the sampling port from being knocked against the inner wall of the underground, thereby improving the sampling purity of the sampling box 7 for groundwater sampling;

[0057] Next, when the connecting cable 5 is lowered for sampling by the winding roller 4, in order to prevent the connecting cable 5 from shaking left and right when the sampling box 7 is lowered, causing the sampling box 7 to collide with the underground inner wall, when the connecting cable 5 is lowered, the third servo motor 2401 can be turned on to drive the sliding block 2403 to slide synchronously along the inner wall of the sliding groove 2404 and the adjusting groove 2405 through the rotation of the rotating rod 2402. At the same time, the sliding of the sliding block 2403 drives the first protective block 2406 to perform telescopic movement, and under the connection of the first fixed block 2407, the area where the connecting cable 5 has just been lowered is effectively prevented from shaking, thereby improving the lowering stability of the sampling box 7.

[0058] Finally, when the sampling box 7 is lowered for use via the connecting cable 5, in order to increase the protection area of ​​the protective block to prevent the connecting cable 5 from shaking when it is lowered, when the sliding block 2403 slides, the second protective block 2502 is driven to perform synchronous telescopic movement through the connection of the connecting block 2501. At the same time, under the rotation connection of the pulling rod 2503, the extension block 2504 is driven to perform telescopic movement along the inner wall of the second protective block 2502, thereby facilitating the adjustment of the protection area of ​​the connecting cable 5 to prevent it from shaking.

[0059] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sampler for groundwater sampling, comprising a mobile frame (1), characterized in that: The mobile frame (1) comprises a winding roller (4), a connecting cable (5), a hanging ring (6), a sampling box (7), an anti-collision pad (8), a sampling tube (9) and an anti-collision mechanism arranged on the side wall of the sampling box (7); the top of the mobile frame (1) is fixedly connected to a connecting rod (2); the outer wall of the connecting rod (2) is fixedly connected to a first servo motor (3); the output end of the first servo motor (3) is fixedly connected to a winding roller (4) rotatably connected to the outer wall of the connecting rod (2); the outer wall of the winding roller (4) is provided with a connecting cable (5); one end of the connecting cable (5) is fixedly connected to a hanging ring (6); the outer wall of the hanging ring (6) is hung with a sampling box (7); the bottom of the sampling box (7) is fixedly connected to an anti-collision pad (8); and the side wall of the sampling box (7) is fixedly connected to a sampling tube (9); The anti-collision mechanism includes a lifting assembly, a first telescopic assembly, a flip assembly, and a second telescopic assembly; The lifting assembly comprises a threaded rod (10), a second servo motor (11), a threaded slide rod (12) and a fixing groove (13); the outer wall of the sampling tube (9) is rotatably connected to the threaded rod (10); one end of the threaded rod (10) is fixedly connected to the second servo motor (11); the outer wall of the threaded rod (10) is threadedly connected to the threaded slide rod (12) which is slidably connected to the outer wall of the sampling tube (9); and a fixing groove (13) is provided at the connection portion between the outer wall of the sampling tube (9) and the threaded slide rod (12); The first telescopic assembly comprises a first rotating rod (14), a telescopic rod (15) and a blocking block (16); the outer wall of the threaded sliding rod (12) is rotatably connected to the first rotating rod (14); one end of the first rotating rod (14) is rotatably connected to the telescopic rod (15) slidably connected to the outer wall of the sampling box (7); one end of the telescopic rod (15) is fixedly connected to the blocking block (16) slidably connected to the inner wall of the sampling tube (9); The flip assembly comprises a second rotating rod (17), a flip cover (18) and a connecting hinge (19); the outer wall of the threaded sliding rod (12) is rotatably connected to the second rotating rod (17) located on one side of the first rotating rod (14); one end of the second rotating rod (17) is rotatably connected to the flip cover (18) rotatably connected to the end of the sampling tube (9); and a connecting hinge (19) is provided at the connection portion of the flip cover (18) with the sampling tube (9); The second telescopic assembly comprises a swing rod (20), a first limiting groove (21), a sliding rod (22) and a protective baffle (23); the outer wall of the threaded sliding rod (12) is slidably connected to the swing rod (20) which is rotatably connected to the outer wall of the sampling tube (9); the first limiting groove (21) is provided at the connection position between the outer wall of the swing rod (20) and the threaded sliding rod (12); the outer wall of the swing rod (20) is slidably connected to the sliding rod (22) which is slidably connected to the outer wall of the sampling tube (9); the second limiting groove (26) is provided at the connection position between the outer wall of the swing rod (20) and the sliding rod (22); and one end of the sliding rod (22) is fixedly connected to the protective baffle (23).

2. A sampler for groundwater sampling according to claim 1, characterized in that: The top of the movable frame (1) is provided with a protection mechanism (24), and the inner side wall of the movable frame (1) is provided with a lifting mechanism (25).

3. A sampler for groundwater sampling according to claim 1, characterized in that: The threaded slide rod (12) forms a lifting structure through the threaded rod (10) and the fixed groove (13), the first rotating rod (14) forms a rotating structure through the threaded slide rod (12) and the telescopic rod (15), the position distribution of the first rotating rod (14) and the second rotating rod (17) is symmetrical about the central axis of the threaded slide rod (12), and the sampling tube (9) is arranged in a "one" shape on both sides of the sampling box (7).

4. A sampler for groundwater sampling according to claim 1, characterized in that: The blocking block (16) forms a telescopic structure with the sampling tube (9) through the first rotating rod (14) and the telescopic rod (15); the second rotating rod (17) forms a rotating structure with the flip cover (18) through the threaded sliding rod (12); two groups of connecting hinges (19) are provided, and the positions of the two groups of connecting hinges (19) are symmetrical about the central axis of the flip cover (18).

5. A sampler for groundwater sampling according to claim 1, characterized in that: The sliding rod (22) forms a sliding structure with the sampling tube (9) through the swing rod (20) and the second limiting groove (26); the positions of the first limiting groove (21) and the second limiting groove (26) are equidistantly distributed about the rotation center of the swing rod (20); the protective baffle (23) forms a telescopic structure with the sampling tube (9); the outer wall profile of the protective baffle (23) is in a "U" shape; the sliding rod (22) is provided with four groups, and the positions of the four groups of sliding rods (22) are distributed around the protective baffle (23).

6. A sampler for groundwater sampling according to claim 2, characterized in that: The protection mechanism (24) comprises a third servo motor (2401), a rotating rod (2402), a sliding block (2403), a sliding groove (2404), an adjusting groove (2405), a first protection block (2406) and a first fixed block (2407); the top of the mobile frame (1) is fixedly connected with the third servo motor (2401); the output end of the third servo motor (2401) is fixedly connected with a rotating rod (2402) rotatably connected with the top of the mobile frame (1); the outer wall of the rotating rod (2402) is slidably connected with a A sliding block (2403) is slidably connected to the top of the mobile frame (1); a sliding groove (2404) is provided at a connection position between the top of the mobile frame (1) and the sliding block (2403); an adjustment groove (2405) is provided at a connection position between the outer wall of the rotating rod (2402) and the sliding block (2403); a first protective block (2406) located on one side of the connecting cable (5) is fixedly connected to the outer wall of the sliding block (2403); and a first fixed block (2407) located on one side of the connecting cable (5) is fixedly connected to the top of the mobile frame (1).

7. A sampler for groundwater sampling according to claim 6, characterized in that: The sliding block (2403) forms a sliding structure with the adjusting groove (2405) through the rotating rod (2402) and the sliding groove (2404), and the outer wall contours of the first protective block (2406) and the first fixed block (2407) are semicircular.

8. A sampler for groundwater sampling according to claim 2, characterized in that: The lifting mechanism (25) comprises a connecting block (2501), a second protective block (2502), a pulling rod (2503), an extension block (2504), a second fixed block (2505) and a second limiting groove (26); the bottom of the sliding block (2403) is fixedly connected to the connecting block (2501); the outer wall of the connecting block (2501) is fixedly connected to the second protective block (2502); the outer wall of the connecting block (2501) is rotatably connected to the pulling rod (2503); one end of the pulling rod (2503) is rotatably connected to the extension block (2504) slidably connected to the inner wall of the second protective block (2502); and the inner wall of the movable frame (1) is fixedly connected to the second fixed block (2505) located on one side of the second protective block (2502).

9. A sampler for groundwater sampling according to claim 8, characterized in that: The connecting block (2501) forms a sliding structure through the sliding block (2403) and the sliding groove (2404), the pulling rod (2503) forms a rotating structure through the connecting block (2501) and the extension block (2504), and the extension block (2504) forms a lifting structure through the pulling rod (2503) and the second protective block (2502), and a connecting groove is provided at the connecting portion between the inner wall of the second protective block (2502) and the extension block (2504).

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