Measurement and acquisition system of sand lake-underground water compound system

Abstract

The invention discloses a measurement and acquisition system of a sand lake-underground water compound system. When the system drives the collector to descend through the cable, the threaded rod drives the threaded sleeve to rotate, and the rack drives the movable ring to move downwards through gear transmission. When the movable ring descends to a preset position, the threaded ring is meshed with internal threads of the fixed ring to drive the end face gear to rotate, the contact plate is pushed to make close contact with the well wall through the driven gear and the driving threaded sleeve, a stable supporting structure is formed, and the stability of the system in the strong wind environment is effectively improved. During sampling, the water pumping motor drives the driving incomplete gear to be sequentially meshed with each layer of gear and drives the driven incomplete gear and the gear ring to move, so that the piston rod slides in the water pumping pipe in a reciprocating manner, and automatic collection of water samples at different depths is realized. The system can complete multi-depth sampling only by releasing the mooring rope, is simple and convenient to operate and good in stability, is particularly suitable for underground water collection operation in a severe desert environment, and can effectively guarantee the accuracy and continuity of sampling data.

Description

Technical Field

[0001] The present invention relates to the technical field of groundwater collection, and specifically to a measurement and collection system for a sandy land lake - groundwater composite system. Background Art

[0002] In arid and semi - arid regions such as the Mu Us Sandy Land, the research on the evolution mechanism and collaborative balance mechanism of the sandy land lake - groundwater composite system is a key scientific issue for desertification control and sustainable water resource utilization. In such areas, the climate conditions are harsh, strong winds and sandstorms occur frequently, resulting in complex and variable dynamic interaction processes between surface water and groundwater. To reveal the ecological - hydrological feedback relationship in the sandy land, long - term and accurate monitoring and sampling of the water volume, water quality and dynamic changes of the sandy land lake - groundwater composite system are required. However, in the traditional measurement and collection system of the sandy land lake - groundwater composite system, the groundwater collection equipment has insufficient stability in a strong - wind environment, is prone to shaking or tipping over, and it is difficult to ensure the continuity and accuracy of sampling data.

[0003] In addition, the research on the sandy land lake - groundwater composite system requires collecting water samples at different depths to analyze the vertical water cycle characteristics and ecological - hydrological coupling mechanisms. When the existing measurement and collection system switches the sampling depth, it often requires manual intervention or complex mechanical adjustment, which is cumbersome and inefficient. In the extreme desert environment, frequent equipment adjustment not only increases the workload of personnel, but also may cause equipment damage or sampling failure, affecting the comprehensiveness and representativeness of scientific research data.

[0004] Therefore, there is an urgent need to develop a measurement and collection system dedicated to the sandy land lake - groundwater composite system, solve the equipment stability problem in a strong - wind environment, and realize the automatic collection of water samples at multiple depths, providing reliable technical support for the research on the collaborative balance mechanism of the sandy land lake - groundwater, and helping to achieve the goals of desertification control and sustainable water resource management. Summary of the Invention

[0005] The purpose of the present invention is to provide a measurement and collection system for a sandy land lake - groundwater composite system, so as to solve the problems raised in the above - mentioned background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A measurement and collection system for a sandy land lake - groundwater composite system, including a vehicle frame; A threaded sleeve is rotatably installed on the vehicle frame. A main transmission gear engaged with a secondary transmission gear is fixed on the threaded sleeve. An active bevel gear engaged with a driven bevel gear is coaxially fixed on the secondary transmission gear. A rotating gear engaged with a rack is fixed on the driven bevel gear. The threaded sleeve can be threadedly connected with a threaded rod. A cable is fixed above the threaded rod and a collector is fixed below the threaded rod; A fixed ring with a movable ring slidably disposed inside is fixed on the frame. The movable ring is fixedly connected to a rack, and a threaded ring that can be threadedly connected to the fixed ring is rotatably disposed on its surface. A face gear is fixed to the lower end of the threaded ring, and the face gear meshes with a driven gear coaxially fixed with a main screw sleeve. A driven screw rod with a contact plate installed at one end is threadedly connected inside the main screw sleeve; A water pumping motor for driving the rotation of the active incomplete gear is fixed inside the collector. The active incomplete gear can mesh with the upper layer gear coaxially fixed with the driven incomplete gear. The driven incomplete gear meshes with a toothed ring with a piston rod fixed at one end. The piston rod is slidably installed inside the water suction pipe, and when the driven incomplete gear rotates, it drives the toothed ring to move.

[0007] Preferably, a cable rack is rotatably disposed on the frame. One end of the cable is fixedly connected to the cable rack. A main mounting rack for fixing the sub-mounting rack is fixed on the frame. A fixed pulley is rotatably disposed at the upper end of the sub-mounting rack, and the surface of the fixed pulley is in contact connection with the surface of the cable.

[0008] Preferably, a hollow sleeve is fixedly disposed on the sub-mounting rack. The inner surface of the hollow sleeve is in contact connection with the surface of the cable. The upper end of the hollow sleeve is fixedly connected to the limit frame. Protrusions are provided on the inner surface of the limit frame, and corresponding protrusions are provided on the surface of the cable. The lower end of the hollow sleeve is rotatably connected to the upper surface of the main transmission gear.

[0009] Preferably, a slide rail is fixedly disposed at the lower end of the sub-mounting rack. A rack is slidably installed inside the slide rail, and the rack can slide up and down along the slide rail.

[0010] Preferably, a limit block is provided inside the slide rail to limit the maximum moving distance of the rack and prevent it from detaching from the slide rail.

[0011] Preferably, the number of driven gears is six and they are arranged in a circumferential array centered on the axis of the threaded ring.

[0012] Preferably, one end of the driven screw rod is fixedly connected to the installation base frame. A longitudinal sliding plate slide rail is fixedly provided at one end of the installation base frame. One end of a connecting rod is slidably installed inside the longitudinal sliding plate slide rail. One end of the connecting rod is fixedly connected to one end of a shock-absorbing telescopic rod and a return spring. The other ends of the shock-absorbing telescopic rod and the return spring are fixedly connected to the inner wall of the longitudinal sliding plate slide rail. The return spring is sleeved on the surface of the shock-absorbing telescopic rod. The other side of the longitudinal sliding plate slide rail is slidably connected to the contact plate. The other end of the connecting rod is fixedly connected to one side of the longitudinal sliding plate. The contact plate is slidably connected to the longitudinal sliding plate, and the contact plate can be in contact connection with the well wall.

[0013] Preferably, the output end of the water pumping motor is fixedly connected to one end of a driving connecting rod. The axial direction of the driving connecting rod is perpendicular to the axial direction of the output end of the water pumping motor. The other end of the driving connecting rod is fixedly connected to the active incomplete gear.

[0014] Preferably, the number of the upper gears, the driven incomplete gears and the gear rings is four each, and they are arranged in a circumferential array centered on the axis of the output end of the pumping motor. One end of the water extraction pipe is fixedly provided with one end of a first one-way valve, the other end of the first one-way valve is fixedly connected to the water suction port, the water suction port extends out of the collector, the surface of the water extraction pipe is fixedly connected to a second one-way valve and is communicated with the second one-way valve, the second one-way valve is fixedly connected to one end of a water delivery pipe, and the other end of the water delivery pipe is fixedly connected to the water inlet of the water tank. The water tank is fixedly arranged in the collector.

[0015] Preferably, the lower end of the threaded sleeve is coaxially and fixedly connected with a limiting plate. The limiting plate is in a hollow conical shape. The threaded rod can pass through the limiting plate and be meshed with the threaded sleeve. The upper end of the collector is provided with a conical surface corresponding to the limiting plate, and the upper end surface of the collector can be in contact connection with the inner wall of the limiting plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: When using this measurement and collection system to collect groundwater in the sandy lake - groundwater composite system, the collector is lowered by releasing the cable fixed with the threaded rod. The lowering of the collector drives the threaded rod to move downward, which in turn drives the threaded sleeve to rotate. The threaded sleeve drives the main transmission gear thereon to rotate simultaneously. The main transmission gear drives the sub - transmission gear to rotate. The driving bevel gear coaxially arranged on the lower surface of the sub - transmission gear rotates synchronously and drives the driven bevel gear meshed therewith to rotate. While rotating, the driven bevel gear drives the rotating gear to rotate. The rotation of the rotating gear drives the rack to slide downward.

[0017] When the rack descends, the rack drives the movable ring to slide downward in the fixed ring. After the movable ring descends a certain distance, the threaded ring on the surface of the movable ring is screwed with the thread on the inner wall of the fixed ring. At this time, while the movable ring drives the threaded ring to descend, the threaded ring will rotate simultaneously. When the threaded ring rotates, the end face gear at its lower end rotates around the axis of the movable ring. When the end face gear rotates, it drives the driven gear meshed therewith to rotate. The driving screw sleeve coaxially fixed with the driven gear rotates in the same direction. The rotation of the driving screw sleeve drives the driven screw rod therein to extend out and pushes the contact plate fixedly connected with the driven screw rod to move away from the movable ring until the contact plate contacts the well wall of the groundwater well and supports on the well wall.

[0018] Through the above mechanism, while the collector descends, the contact plate extends and opens and contacts the wellbore. After the contact plate contacts the wellbore and supports on the wellbore, the stability of the movable ring and the fixed ring is improved through the frictional force between the contact plate and the wellbore. The stability of the movable ring and the fixed ring reacts on the frame of the measurement and acquisition system, improving the stability of the frame. The frame of the measurement and acquisition system is the basic structure for supporting and fixing other components of the system. The improvement of the frame stability can enhance the overall stability of the measurement and acquisition system, thereby improving the stability of the measurement and acquisition system in a strong wind environment, making it not prone to shaking or toppling, and further ensuring the continuity and accuracy of the sampling data.

[0019] After the collector descends to the target sampling depth in the water well, the pumping motor drives the active incomplete gear to rotate around the axis of the output end of the pumping motor. The active incomplete gear first meshes with an upper gear, and the active incomplete gear drives the upper gear to rotate, and then drives the driven incomplete gear fixed coaxially with the upper gear to rotate simultaneously. When the driven incomplete gear rotates, it drives the toothed ring to move, and then drives the piston rod fixed to the toothed ring to slide in the water extraction pipe, pumping the groundwater in the water well into the water extraction pipe to complete the water sample collection at this sampling depth. Then continue to release the cable to make the collector continue to descend to another target sampling depth. The pumping motor drives the active incomplete gear to rotate until it meshes with another upper gear, and repeat the above sampling process to complete the water sample collection at this target depth. Then continue to release the cable until the water sample collection at all target sampling depths is completed.

[0020] Through the above mechanism, when the collector is only lowered to different sampling depths by releasing the cable, the automatic sampling of groundwater at multiple depths can be completed through the drive of the pumping motor, without the need to switch the sampling depth through complex mechanical adjustments, improving the convenience and efficiency of the sampling operation, and being applicable to the multi-depth water sample collection in desert extreme environments. Brief Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the measurement and acquisition system of a sand lake - groundwater composite system of the present invention; Figure 2 It is a schematic structural diagram of the threaded sleeve and the threaded rod of the measurement and acquisition system of a sand lake - groundwater composite system of the present invention. In this figure, the U-shaped frame and the collector are removed; Figure 3 It is a schematic structural diagram of the limit frame of the measurement and acquisition system of a sand lake - groundwater composite system of the present invention; Figure 4 It is a schematic structural diagram of the fixed ring and the movable ring of the measurement and acquisition system of a sand lake - groundwater composite system of the present invention; Figure 5 It is Figure 4Partial enlarged view of part A; Figure 6 Schematic diagram of the internal structure of the collector of a measurement and acquisition system for a sandy land lake - groundwater composite system according to the present invention; Figure 7 Schematic diagram of the external structure of the collector of a measurement and acquisition system for a sandy land lake - groundwater composite system according to the present invention; Figure 8 Schematic diagram of the structure of another angle of the inside of the collector of a measurement and acquisition system for a sandy land lake - groundwater composite system according to the present invention, showing the structure of the driving incomplete gear.

[0022] In the figure: 1. Frame, 101. Support wheel, 102. Operating handle, 103. Cable, 104. Cable rack, 105. Fixed pulley, 106. Counterweight, 107. Driving motor, 201. Main mounting frame, 202. Sub - mounting frame, 204. Hollow sleeve, 2041. Limiting frame, 205. U - shaped frame, 206. Threaded sleeve, 207. Main transmission gear, 208. Threaded rod, 209. Limiting plate, 210. Sub - transmission gear, 211. Driving bevel gear, 212. Driven bevel gear, 2121. Transmission connecting rod, 2122. Rotating gear, 213. Rack, 214. Slide rail, 215. Collector, 216. First counterweight, 301. Fixed ring, 302. Movable ring, 303. Threaded ring, 304. End face gear, 305. Driven gear, 306. Driving screw sleeve, 307. Driven screw rod, 308. Installation base frame, 309. Longitudinal sliding plate slide rail, 310. Connecting rod, 311. Shock - absorbing telescopic rod, 312. Return spring, 313. Longitudinal sliding plate, 3131. Contact plate, 401. Water pumping motor, 402. Driving connecting rod, 403. Driving incomplete gear, 404. Upper layer gear, 405. Driven incomplete gear, 406. Tooth ring, 408. Piston rod, 409. Water suction pipe, 410. First one - way valve, 411. Water suction port, 412. Second one - way valve, 413. Water delivery pipe, 414. Water tank. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 1-8 , the present invention provides a technical solution: As Figure 1As shown in the figure, in order to improve the stability of the measurement and acquisition system during water sample sampling, a measurement and acquisition system for a sandy lake - groundwater composite system is proposed, which includes a vehicle frame 1. Four independently rotatable support wheels 101 are rotatably arranged at the lower end of the vehicle frame 1. The support wheels 101 can contact the ground and support the vehicle frame 1 to move on the ground. Two operating handles 102 are fixedly connected to one end of the vehicle frame 1. The operator can push the vehicle frame 1 to move through the operating handles 102. A counterweight 106 is fixedly arranged behind the vehicle frame 1. A sampling assembly is installed in front of the vehicle frame 1. By setting the counterweight 106, the self-weight of the vehicle frame 1 can be increased, so that the mass of the vehicle frame 1 is greater than the overall mass of the sampling assembly, improving the stability of the vehicle frame 1 and achieving the balance between the vehicle frame 1 and the sampling assembly. A cable reel 104 is rotatably arranged on the vehicle frame 1. One end of a cable 103 is fixedly connected to the cable reel 104. The cable reel 104 is cylindrical, and its axis is fixedly connected to the output end of a driving motor 107. By the forward and reverse rotation of the driving motor 107, the forward and reverse rotation of the cable reel 104 is realized, and then the release and winding of the cable 103 on the cable reel 104 are realized.

[0025] A main mounting frame 201 is fixedly arranged at one end of the vehicle frame 1 far from the operating handle 102. A sub - mounting frame 202 is fixedly arranged on the main mounting frame 201. The main mounting frame 201 and the sub - mounting frame 202 are used to mount the sampling assembly. A fixed pulley 105 is rotatably arranged at the upper end of the sub - mounting frame 202. The surface of the fixed pulley 105 is in contact connection with the surface of the cable 103.

[0026] A U - shaped frame 205 is fixedly arranged on the sub - mounting frame 202. The sampling assembly includes a main transmission gear 207, a sub - transmission gear 210 and a threaded sleeve 206 rotatably mounted on the U - shaped frame 205 (the sub - transmission gear 210 is shown in Figure 2 ), the threaded sleeve 206 is rotatably arranged at the lower end of the U - shaped frame 205. As shown in Figure 2 , the main transmission gear 207 is fixed on the threaded sleeve 206. When the threaded sleeve 206 rotates, it will drive the main transmission gear 207 to rotate. The axis of the main transmission gear 207 is hollow, which is convenient for the cable 103 to extend into and pass through. The main transmission gear 207 is meshed with the sub - transmission gear 210. When the main transmission gear 207 rotates, it will drive the sub - transmission gear 210 to rotate. The sub - transmission gear 210 plays a transmission role. The sub - transmission gear 210 is rotatably mounted on the U - shaped frame 205. A driving bevel gear 211 is coaxially fixed on the surface of the sub - transmission gear 210. The driving bevel gear 211 is meshed with a driven bevel gear 212. The driven bevel gear 212 is rotatably mounted on the U - shaped frame 205. The axis of the driven bevel gear 212 is perpendicular to the axis of the driving bevel gear 211. By setting the driving bevel gear 211 and the driven bevel gear 212, the transmission direction is changed. When the sub - transmission gear 210 drives the driving bevel gear 211 to rotate, under the action of the driving bevel gear 211, the driven bevel gear 212 will rotate simultaneously.

[0027] One end of each of two drive connecting rods 2121 is coaxially and fixedly connected to both sides of the driven bevel gear 212. The two drive connecting rods 2121 extend out of the U-shaped frame 205 at the other end and are rotatably connected to the U-shaped frame 205. One end of each drive connecting rod 2121 extending out of the U-shaped frame 205 is coaxially and fixedly connected to a rotating gear 2122. A total of two rotating gears 2122 are provided. The drive connecting rods 2121 serve to mount the driven bevel gear 212 and drive the rotation of the rotating gears 2122. The two rotating gears 2122 are respectively meshed and connected to a rack 213 (shown in Figure 1 ). Two slide rails 214 are fixedly provided at the lower end of the secondary mounting frame 202. The distance between the two slide rails 214 is equal to the distance between the two racks 213. One rack 213 is slidably mounted in each slide rail 214. The rack 213 can slide up and down along the slide rail 214. While the rotating gear 2122 rotates, it will drive the rack 213 to move up and down in the slide rail 214 (shown in Figure 1 ). A limit block is provided in the slide rail 214 to limit the maximum movement distance of the rack 213 and prevent the rack 213 from detaching from the slide rail 214.

[0028] A hollow sleeve 204 is fixedly provided on the secondary mounting frame 202. The hollow sleeve 204 is arranged above the threaded sleeve 206 and is coaxially arranged with the threaded sleeve 206. The inner surface of the hollow sleeve 204 is in contact connection with the surface of the cable 103. The hollow sleeve 204 is used to thread the cable 103 and mount the limit frame 2041. The lower end of the hollow sleeve 204 is rotatably connected to the upper surface of the main transmission gear 207. Since the hollow sleeve 204 is rotatably connected to the main transmission gear 207 and the hollow sleeve 204 is fixedly provided on the secondary mounting frame 202, the hollow sleeve 204 will not rotate when the main transmission gear 207 rotates. The upper end of the hollow sleeve 204 is fixedly connected to the limit frame 2041. As Figure 3 shown, in order to prevent the cable 103 from rotating when descending, protrusions are provided on the inner surface of the limit frame 2041, and corresponding protrusions are provided on the outer surface of the cable 103. The protrusions on the surface of the cable 103 are arranged between two adjacent protrusions of the limit frame 2041. The protrusions on the surface of the cable 103 are in contact connection with the protrusions on the inner surface of the limit frame 2041. The rotation movement of the cable 103 is restricted by the protrusions on the inner surface of the limit frame 2041 to prevent the cable 103 from rotating when extending into the water well. The cable 103 is released from the cable rack 104, passes through the fixed pulley 105, and then extends into the limit frame 2041, the hollow sleeve 204, the main transmission gear 207, and the threaded sleeve 206 from top to bottom in sequence.

[0029] After the cable 103 extends into the threaded sleeve 206 from top to bottom, it is connected to the threaded rod 208 (shown inFigure 2 is fixedly connected to the upper end thereof. The threaded rod 208 can be threadedly connected to the threaded sleeve 206. When the threaded rod 208 rises or falls, it will drive the threaded sleeve 206 to rotate. The lower end of the threaded rod 208 is fixedly connected to the upper end of the collector 215 (shown in Figure 1 ). The collector 215 is used to collect groundwater. A first counterweight 216 is provided on the lower surface of the collector 215 (shown in Figure 7 ). The mass of the first counterweight 216 is relatively large. When the drive motor 107 is turned on and under the action of the gravity of the first counterweight 216, the first counterweight 216 will pull the threaded rod 208 downward through the collector 215 and drive the threaded sleeve 206 to rotate. As Figure 2 shown, a limiting plate 209 is coaxially and fixedly connected to the lower end of the threaded sleeve 206. The limiting plate 209 is in a hollow conical shape. The threaded rod 208 can pass through the limiting plate 209 and be meshed and connected to the threaded sleeve 206. As Figure 1 shown, a conical surface corresponding to the limiting plate 209 is provided on the upper end of the collector 215. The upper end surface of the collector 215 can be in contact connection with the inner wall of the limiting plate 209. After the collector 215 rises until its upper end surface contacts the inner wall of the limiting plate 209, the collector 215 reaches its highest limit position, that is, the highest limit position where the upward movement of the collector 215 can be restricted by the limiting plate 209, preventing the collector 215 from contacting the threaded sleeve 206 and thus avoiding component damage.

[0030] When the collector 215 is put into the water well, the combined mass of the first counterweight 216 and the collector 215 is relatively large. Therefore, when the collector 215 descends, the collector 215 drives the threaded rod 208 to move downward. Since the threaded rod 208 is meshed and connected to the threaded sleeve 206, when the threaded rod 208 descends, the threaded sleeve 206 will rotate on the U-shaped frame 205. The threaded sleeve 206 drives the main transmission gear 207 thereon to rotate simultaneously. The main transmission gear 207 drives the secondary transmission gear 210 to rotate. The driving bevel gear 211 coaxially provided on the lower surface of the secondary transmission gear 210 rotates and drives the driven bevel gear 212 to rotate. While rotating, the driven bevel gear 212 drives the rotating gear 2122 to rotate through the transmission connecting rod 2121. The rotating gear 2122 is meshed and connected to the rack 213. Therefore, the rack 213 will slide downward in the slide rail 214 until the threaded rod 208 is completely disengaged from the threaded sleeve 206, and the threaded sleeve 206 loses the kinetic energy input and stops rotating. During this period, the cable 103 will not rotate under the action of the limiting frame 2041. Therefore, it will not cause the threaded rod 208 connected below the cable 103 to rotate during the rising or falling process, thus affecting the driving effect of the threaded rod 208 on the threaded sleeve 206.

[0031] As Figure 1As shown, a fixed ring 301 is fixedly arranged on the main mounting bracket 201. The position of the fixed ring 301 is fixed relative to the vehicle frame 1, and its main function is to install the movable ring 302. The fixed ring 301 is located below the U-shaped frame 205. The movable ring 302 is slidably installed up and down inside the fixed ring 301. The upper end of the movable ring 302 is fixedly connected to the lower end of the rack 213. When the rack 213 descends, the movable ring 302 moves downward inside the fixed ring 301, as Figure 4 and 5 shown. A threaded ring 303 is coaxially rotatably arranged on the outer surface of the movable ring 302, and the movable ring 302 is fixedly connected to the threaded ring 303 along the axis, that is, the up and down movement of the movable ring 302 can drive the threaded ring 303 to rise or fall. Threads that can be threadedly connected to the threaded ring 303 are arranged on the inner wall surface of the fixed ring 301. When the threaded ring 303 is threadedly engaged with the inner wall of the fixed ring 301, the threaded ring 303 will rotate when it rises or falls. A face gear 304 is fixedly arranged at the lower end of the threaded ring 303. The face gear 304 is coaxially arranged with the movable ring 302. The face gear 304 is meshed and connected with the driven gear 305. The driven gear 305 is rotatably arranged on the surface of the movable ring 302. The number of driven gears 305 is six, and they are arranged in a circular array centered on the axis of the threaded ring 303. When the threaded ring 303 rotates, it drives the face gear 304 to rotate. When the face gear 304 rotates, it will drive the driven gear 305 to rotate. One end of each driven gear 305 away from the movable ring 302 is coaxially fixedly connected to one end of a main screw sleeve 306. A driven screw 307 is threadedly connected inside the main screw sleeve 306. The driven screw 307 is slidably installed on the movable ring 302 along the radial direction of the movable ring 302. When the main screw sleeve 306 rotates, the driven screw 307 will extend out.

[0032] One end of each driven screw 307 is fixedly connected to a mounting base frame 308 (shown in Figure 5 ). The mounting base frame 308 is used to install the longitudinal sliding plate slide rail 309. One end of the mounting base frame 308 is fixedly provided with the longitudinal sliding plate slide rail 309. A connecting rod 310 is slidably installed inside the longitudinal sliding plate slide rail 309. The connecting rod 310 can slide along its extending direction inside the longitudinal sliding plate slide rail 309. One end of the connecting rod 310 is fixedly connected to one end of a shock-absorbing telescopic rod 311 and a return spring 312. The other ends of the shock-absorbing telescopic rod 311 and the return spring 312 are fixedly connected to the inner wall of the longitudinal sliding plate slide rail 309. The return spring 312 is sleeved on the surface of the shock-absorbing telescopic rod 311. The other end of the connecting rod 310 is fixedly connected to one side surface of the longitudinal sliding plate 313. A contact plate 3131 is longitudinally slidably installed on the side surface of the longitudinal sliding plate 313 away from the connecting rod 310. The surface of the contact plate 3131 away from the longitudinal sliding plate 313 can be in contact connection with the well wall of the groundwater well.

[0033] When there is a large deviation between the axis of the fixed ring 301 and the axis of the water well, one or more (less than 6) of the six contact plates 3131 first come into contact with the well wall. The resistance from the well wall received by the contact plate 3131 is transmitted through the longitudinal sliding plate 313 and feedback to the shock-absorbing telescopic rod 311 and the return spring 312. After the contact plate 3131 contacts the well wall, the driven screw 307 still protrudes from the active screw sleeve 306. Therefore, the shock-absorbing telescopic rod 311 and the return spring 312 elongate. At this time, the movable ring 302 continues to move downward, and drives the longitudinal sliding plate 313 on the contact plate 3131 that has already contacted the well wall to continue sliding downward on the contact plate 3131. By setting the shock-absorbing telescopic rod 311, the return spring 312 and the longitudinal sliding plate 313, it can be ensured that when some of the contact plates 3131 first contact the well wall, the driven gear 305 can continue to rotate without getting stuck, that is, to ensure that the movable ring 302 and the threaded ring 303 thereon can continue to descend, the end face gear 304, the driven gear 305 and the active screw sleeve 306 continue to rotate, and the driven screw 307 continues to protrude from the active screw sleeve 306 to ensure that the other contact plates 3131 that have not yet contacted the well wall can continue to extend. Through the setting of the shock-absorbing telescopic rod 311, the return spring 312 and the longitudinal sliding plate 313, even when there is a large deviation between the axis of the fixed ring 301 and the axis of the water well, the six contact plates 3131 can still contact the well wall and support on the well wall.

[0034] When the threaded sleeve 206 rotates to drive the rack 213 to descend, the rack 213 drives the movable ring 302 to slide downward in the fixed ring 301. After the movable ring 302 descends a certain distance, the threaded ring 303 on the surface of the movable ring 302 is threadedly connected to the inner wall of the fixed ring 301. At this time, when the movable ring 302 descends, the threaded ring 303 will rotate simultaneously. When the threaded ring 303 rotates, the end face gear 304 at its lower end rotates around the axis of the movable ring 302. When the end face gear 304 rotates, it drives the driven gear 305 to rotate. The active screw sleeve 306 on the surface of the driven gear 305 rotates in the same direction. The driven screw 307 in the active screw sleeve 306 extends and pushes the mounting chassis 308 to move away from the movable ring 302. When the mounting chassis 308 moves, the longitudinal sliding plate slide rail 309, the connecting rod 310 and the longitudinal sliding plate 313 move in the same direction and push the contact plate 3131 to move in the same direction. When the contact plate 3131 contacts the well wall, the contact plate 3131 receives the resistance from the well wall and feedback to the shock-absorbing telescopic rod 311 and the return spring 312, and the shock-absorbing telescopic rod 311 and the return spring 312 elongate.

[0035] To achieve groundwater sampling at different depths, such as Figure 6-8As shown, a pumping motor 401 is fixedly arranged inside the housing of the collector 215. The pumping motor 401 is controlled by a PLC controller (not shown in the drawings). The PLC controller adopts an existing model of PLC controller. The housing of the collector 215 is a hollow cylinder. The pumping motor 401 is used to provide kinetic energy input. One end of the output end of the pumping motor 401 is fixedly connected to one end of a driving connecting rod 402. The axial direction (i.e., the length direction) of the driving connecting rod 402 is perpendicular to the axial direction of the output end of the pumping motor 401. The other end of the driving connecting rod 402 is fixedly connected to a driving incomplete gear 403. The driving incomplete gear 403 can be meshed with an upper layer gear 404. The upper layer gear 404 is rotatably arranged inside the housing of the collector 215. There are a total of four upper layer gears 404, and they are arranged in a circumferential array centered on the axis of the output end of the pumping motor 401. A driven incomplete gear 405 is coaxially and fixedly arranged on the lower surface of each upper layer gear 404. The driven incomplete gear 405 is meshed with the internal teeth of a gear ring 406. The internal teeth of the gear ring 406 are arranged inside the two parallel straight edges of the gear ring 406. The gear ring 406 is slidably installed inside the collector 215. A corresponding chute (the chute is not shown in the drawings) is fixedly arranged inside the collector 215. The gear ring 406 can slide reciprocally along the radial direction of the housing of the collector 215. When the driven incomplete gear 405 rotates to be meshed with the internal teeth on one straight edge of the gear ring 406, the rotation of the driven incomplete gear 405 drives the gear ring 406 to slide towards the direction close to the pumping motor 401. When the driven incomplete gear 405 rotates to be meshed with the internal teeth on the other straight edge of the gear ring 406, the rotation of the driven incomplete gear 405 drives the gear ring 406 to slide towards the direction away from the pumping motor 401. Thus, the reciprocating sliding of the gear ring 406 is realized.

[0036] One end of the gear ring 406 away from the pumping motor 401 is fixedly connected to one end of a piston rod 408. The piston rod 408 is slidably installed inside a water suction pipe 409. The water suction pipe 409 is fixedly arranged inside the collector 215. The groundwater can be pumped through the water suction pipe 409.

[0037] One end of the water suction pipe 409 is fixedly connected to one end of a first one-way valve 410. The function of the first one-way valve 410 is in a non-return state, that is, the groundwater in the well can only enter the water suction pipe 409 through the first one-way valve 410, and cannot enter the well from the water suction pipe 409 through the first one-way valve 410. The other end of the first one-way valve 410 is fixedly connected to a water suction port 411. The water suction port 411 extends out of the housing of the collector 215. A sealing strip is arranged at the connection between the water suction port 411 and the housing of the collector 215 to prevent the groundwater from entering the interior of the housing of the collector 215 from the connection between the water suction port 411 and the housing. A second one-way valve 412 is fixedly connected to the surface of the water suction pipe 409 (shown in Figure 8In the middle), the water suction pipe 409 is communicated with the second one-way valve 412. The second one-way valve 412 is fixedly connected to one end of the water delivery pipe 413. The other end of the water delivery pipe 413 is fixedly connected to the water inlet of the water tank 414. The water tank 414 is fixedly arranged in the collector 215. The second one-way valve 412 is in a state of only allowing water to flow out, that is, the groundwater pumped into the water suction pipe 409 can only enter the water tank 414 through the second one-way valve 412 and the water delivery pipe 413, and cannot flow back from the water tank 414 through the water delivery pipe 413 and the second one-way valve 412 into the water suction pipe 409.

[0038] After the collector 215 enters the groundwater well under the action of the first counterweight 216, when it is necessary to take stratified samples of the groundwater in the well, the PLC controller is used to control the water pump motor 401 to start working. The output end of the water pump motor 401 starts to rotate and drives the driving connecting rod 402 to drive the driving incomplete gear 403 to rotate around the axis of the output end of the water pump motor 401. First, the driving incomplete gear 403 meshes with an upper layer gear 404. The driving incomplete gear 403 drives the upper layer gear 404 to rotate one circle. The upper layer gear 404 rotates one circle and drives the driven incomplete gear 405 fixed coaxially with it to rotate one circle synchronously. During the first half of the rotation of the driven incomplete gear 405, the driven incomplete gear 405 first meshes with the internal teeth on a straight side of the toothed ring 406. The rotation of the driven incomplete gear 405 drives the toothed ring 406 to slide towards the direction close to the water pump motor 401. The piston rod 408 on the toothed ring 406 moves in the same direction. The movement of the piston rod 408 causes a negative pressure state to be formed in the water suction pipe 409, and then the groundwater is pumped into the water suction pipe 409 through the first one-way valve 410, completing the water pumping process of the water suction pipe 409. The driven incomplete gear 405 continues to rotate. During the second half of its rotation, the driven incomplete gear 405 meshes with the internal teeth on the other straight side of the toothed ring 406. The rotation of the driven incomplete gear 405 drives the toothed ring 406 to move in the reverse direction, so as to slide away from the water pump motor 401. The piston rod 408 moves in the same direction. The piston rod 408 pushes the groundwater sample in the water suction pipe 409 into the water tank 414 through the second one-way valve 412 and the water delivery pipe 413. At this time, the driving incomplete gear 403 loses meshing with an upper layer gear 404, completing the collection of the groundwater sample at one depth. Continue to lengthen the length of the cable 103. Under the action of the gravity of the first counterweight 216, the collector 215 continues to descend. When it descends to the next depth, the water pump motor 401 drives the driving incomplete gear 403 to mesh with the next upper layer gear 404, repeating the sampling process of the previous layer, and so on, to complete the multi-layer sampling of the groundwater sample.

[0039] Working principle: First, the operator pushes the vehicle frame 1 to the well side through the operating handle 102, and places the fixed ring 301 above the well. Then, the operator turns on the switch of the driving motor 107 to make the driving motor 107 rotate forward. The cable reel 104 rotates forward, and the cable 103 on the cable reel 104 is released and extended on the cable reel 104.

[0040] At this time, the first counterweight 216 and the collector 215 will move vertically downward under the action of gravity. Therefore, when the collector 215 descends, the collector 215 drives the threaded rod 208 to move downward. Since the threaded rod 208 is meshed and connected with the threaded sleeve 206, when the threaded rod 208 descends, the threaded sleeve 206 will rotate on the U-shaped frame 205. The threaded sleeve 206 drives the main transmission gear 207 on it to rotate simultaneously. The main transmission gear 207 drives the driven transmission gear 210 to rotate. The driving bevel gear 211 coaxially arranged on the lower surface of the driven transmission gear 210 rotates and drives the driven bevel gear 212 to rotate. While rotating, the driven bevel gear 212 drives the rotating gear 2122 to rotate through the transmission connecting rod 2121. The rotating gear 2122 is meshed and connected with the rack 213. Therefore, the rack 213 will slide downward in the slide rail 214 until the threaded rod 208 is completely disengaged from the threaded sleeve 206, and the threaded sleeve 206 loses kinetic energy input and stops rotating. During this period, the cable 103 will not rotate under the action of the limit frame 2041. Therefore, it will not cause the threaded rod 208 connected below the cable 103 to rotate during the ascending or descending process, which affects the driving effect of the threaded rod 208 on the threaded sleeve 206.

[0041] Meanwhile, the cable 103 will not rotate under the action of the limit frame 2041. And when the threaded sleeve 206 rotates to drive the rack 213 to descend, the rack 213 drives the movable ring 302 to slide downward in the fixed ring 301. After the movable ring 302 descends a certain distance, the threaded ring 303 on the surface of the movable ring 302 is threadedly connected with the inner wall of the fixed ring 301. At this time, when the movable ring 302 descends, the threaded ring 303 will rotate simultaneously. When the threaded ring 303 rotates, the end face gear 304 at its lower end rotates around the axis of the movable ring 302. When the end face gear 304 rotates, it drives the driven gear 305 to rotate. The driving screw sleeve 306 on the surface of the driven gear 305 rotates in the same direction. The driven screw 307 in the driving screw sleeve 306 extends out and pushes the mounting base frame 308 to move away from the movable ring 302. When the mounting base frame 308 moves, the longitudinal sliding plate slide rail 309, the connecting rod 310 and the longitudinal sliding plate 313 move in the same direction, and push the contact plate 3131 to move in the same direction. When the contact plate 3131 contacts the well wall, the contact plate 3131 receives the resistance from the well wall and feeds it back to the shock-absorbing telescopic rod 311 and the return spring 312, and the shock-absorbing telescopic rod 311 and the return spring 312 extend.

[0042] Until the threaded rod 208 is completely disengaged from the threaded sleeve 206, the threaded sleeve 206 loses the kinetic energy input and stops rotating, the movable ring 302 stops rotating, and the driven screw 307 stops extending.

[0043] The cable rack 104 continues to rotate. After the collector 215 enters the groundwater well under the action of the first counterweight 216, when it is necessary to conduct stratified sampling of the groundwater in the well, the PLC controller is used to control the water pumping motor 401 to start working. The output end of the water pumping motor 401 starts to rotate and drives the driving connecting rod 402 to drive the driving incomplete gear 403 to rotate around the axis of the output end of the water pumping motor 401. First, the driving incomplete gear 403 meshes with an upper layer gear 404. The driving incomplete gear 403 drives the upper layer gear 404 to rotate one circle. The upper layer gear 404 rotating one circle drives the driven incomplete gear 405 fixed coaxially with it to rotate one circle synchronously. During the first half of the rotation of the driven incomplete gear 405, the driven incomplete gear 405 first meshes with the internal teeth on a straight side of the toothed ring 406. The rotation of the driven incomplete gear 405 drives the toothed ring 406 to slide towards the direction close to the water pumping motor 401. The piston rod 408 on the toothed ring 406 moves in the same direction. The movement of the piston rod 408 causes a negative pressure state to be formed in the water suction pipe 409, and then the groundwater is pumped into the water suction pipe 409 through the first one-way valve 410, completing the water pumping process of the water suction pipe 409. The driven incomplete gear 405 continues to rotate. During the second half of its rotation, the driven incomplete gear 405 meshes with the internal teeth on the other straight side of the toothed ring 406. The rotation of the driven incomplete gear 405 drives the toothed ring 406 to move in the reverse direction, that is, to slide away from the water pumping motor 401. The piston rod 408 moves in the same direction. The piston rod 408 pushes the groundwater sample in the water suction pipe 409 to enter the water tank 414 through the second one-way valve 412 and the water delivery pipe 413. At this time, the driving incomplete gear 403 loses meshing with an upper layer gear 404, completing the collection of the groundwater sample at one depth. The length of the cable 103 is continuously extended. Under the action of the gravity of the first counterweight 216, the collector 215 continues to descend. When it descends to the next depth, the water pumping motor 401 drives the driving incomplete gear 403 to mesh with the next upper layer gear 404, repeating the sampling process of the previous layer, and so on, to complete the multi-layer sampling of the groundwater sample.

[0044] After the groundwater sample is collected, reverse-rotate the drive motor 107, and the cable reel 104 rotates in the reverse direction. The cable 103 on the cable reel 104 slowly winds around the cable reel 104. The length of the cable 103 in the well becomes shorter, and the cable 103 gradually pulls the sampler 215 out of the water. The threaded rod 208 extends into the threaded sleeve 206. After the threaded rod 208 extends into the threaded sleeve 206, the threaded rod 208 moves upward under the action of the cable 103, the threaded sleeve 206 rotates in the reverse direction, the main transmission gear 207 on the threaded sleeve 206 rotates in the reverse direction, the secondary transmission gear 210 rotates in the reverse direction, and the driving bevel gear 211 drives the driven bevel gear 212 to rotate in the reverse direction, thereby realizing the reverse rotation of the transmission rotating gear 2122. The rack 213 moves upward under the action of the transmission rotating gear 2122. The rack 213 pulls the movable ring 302 to move upward in the fixed ring 301. The movable ring 302 drives the threaded ring 303 to move upward. The threaded ring 303 rotates in the reverse direction, and the end face gear 304 and the driven gear 305 rotate in the reverse direction, thereby realizing the retraction of the driven screw 307 into the driving screw sleeve 306. The contact plate 3131 loses contact connection with the well wall. As the rack 213 continues to rise, the movable ring 302 is pulled out of the water well, and the sampling of the groundwater sample is completed.

[0045] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A measurement and collection system for a sandy lake-groundwater composite system, comprising a frame (1), characterized in that: A threaded sleeve (206) is rotatably mounted on the vehicle frame (1); a main transmission gear (207) meshing with a secondary transmission gear (210) is fixed on the threaded sleeve (206); a driving bevel gear (211) meshing with a driven bevel gear (212) is coaxially fixed to the secondary transmission gear (210); a rotating gear (2122) meshing with a rack (213) is fixed on the driven bevel gear (212); the threaded sleeve (206) can be threadedly connected to a threaded rod (208); a cable (103) is fixed on the upper side of the threaded rod (208); and a collector (215) is fixed on the lower side of the threaded rod (208); A fixed ring (301) having a movable ring (302) slidably arranged inside the fixed ring (301) is fixedly arranged on the frame (1); the movable ring (302) is fixedly connected to the rack (213); a threaded ring (303) capable of being threadedly connected to the fixed ring (301) is rotatably arranged on the surface of the fixed ring (301); an end face gear (304) is fixed to the lower end of the threaded ring (303); the end face gear (304) is meshed with a driven gear (305) having a driving screw sleeve (306) coaxially fixed thereto; the driving screw sleeve (306) is internally threadedly connected to a driven screw rod (307) having a contact plate (3131) mounted on one end; A pumping motor (401) is fixed inside the collector (215) for driving an active incomplete gear (403) to rotate. The active incomplete gear (403) can mesh with an upper gear (404) of a coaxially fixed driven incomplete gear (405). The driven incomplete gear (405) meshes with a ring gear (406) of which a piston rod (408) is fixed at one end. The piston rod (408) is slidably installed in a pumping pipe (409). When the driven incomplete gear (405) rotates, the ring gear (406) is driven to move.

2. The measurement and acquisition system for a sandy lake-groundwater composite system according to claim 1 is characterized by: A cable frame (104) is rotatably provided on the vehicle frame (1), one end of a cable (103) is fixedly connected to the cable frame (104), a main mounting frame (201) for fixing a secondary mounting frame (202) is fixed on the vehicle frame (1), a fixed pulley (105) is rotatably provided on the upper end of the secondary mounting frame (202), and a surface of the fixed pulley (105) is in contact and connection with a surface of the cable (103).

3. The measurement and acquisition system of the sandy lake-groundwater composite system according to claim 2 is characterized by: A hollow sleeve (204) is fixedly arranged on the auxiliary mounting frame (202), the inner surface of the hollow sleeve (204) is in contact with the surface of the cable (103), the upper end of the hollow sleeve (204) is fixedly connected to the limit frame (2041), a protrusion is arranged on the inner surface of the limit frame (2041), and a protrusion corresponding to the protrusion is arranged on the surface of the cable (103), and the lower end of the hollow sleeve (204) is rotatably connected to the upper surface of the main transmission gear (207).

4. The measurement and acquisition system for a sandy lake-groundwater composite system according to claim 2 is characterized by: A slide rail (214) is fixedly provided at the lower end of the auxiliary mounting frame (202), and the rack (213) is slidably mounted in the slide rail (214), and the rack (213) can slide up and down along the slide rail (214).

5. The measurement and acquisition system for the sandy lake-groundwater composite system according to claim 4 is characterized by: A limit block is provided in the slide rail (214) for limiting the maximum moving distance of the rack (213) to prevent the rack (213) from being separated from the slide rail (214).

6. The measurement and acquisition system for a sandy lake-groundwater composite system according to claim 1 is characterized by: The number of the driven gears (305) is six, and they are arranged in a circular array with the axis of the threaded ring (303) as the center.

7. The measurement and acquisition system for a sandy lake-groundwater composite system according to claim 1 is characterized by: One end of the driven screw rod (307) is fixedly connected to the mounting base (308), and one end of the mounting base (308) is fixedly provided with a longitudinal sliding plate rail (309). One end of the connecting rod (310) is slidably mounted in the longitudinal sliding plate rail (309). One end of the connecting rod (310) is fixedly connected to one end of a vibration-damping telescopic rod (311) and a return spring (312). The other ends of the vibration-damping telescopic rod (311) and the return spring (312) are fixedly connected to the inner wall of the longitudinal sliding plate rail (309). The return spring (312) is sleeved on the surface of the vibration-damping telescopic rod (311). The other side of the longitudinal sliding plate rail (309) is slidably connected to a contact plate (3131). The other end of the connecting rod (310) is fixedly connected to one side of the longitudinal sliding plate (313). The contact plate (3131) is slidably connected to the longitudinal sliding plate (313), and the contact plate (3131) can be in contact with the well wall.

8. The measurement and acquisition system for a sandy lake-groundwater composite system according to claim 1 is characterized by: The output end of the water pumping motor (401) is fixedly connected to one end of a driving connecting rod (402), the axial direction of the driving connecting rod (402) is perpendicular to the axial direction of the output end of the water pumping motor (401), and the other end of the driving connecting rod (402) is fixedly connected to an active incomplete gear (403).

9. The measurement and acquisition system for a sandy lake-groundwater composite system according to claim 1, characterized in that: The number of the upper gear (404), the driven incomplete gear (405) and the gear ring (406) are all four, and they are arranged in a circular array with the axis of the output end of the pumping motor (401) as the center. One end of the pumping pipe (409) is fixedly provided with one end of a first one-way valve (410), and the other end of the first one-way valve (410) is fixedly connected to a water suction port (411), and the water suction port (411) extends out of the collector (215). The surface of the pumping pipe (409) is fixedly connected to a second one-way valve (412) and communicates with the second one-way valve (412). The second one-way valve (412) is fixedly connected to one end of a water delivery pipe (413), and the other end of the water delivery pipe (413) is fixedly connected to a water inlet of a water tank (414), and the water tank (414) is fixedly arranged in the collector (215).

10. The measurement and acquisition system for a sandy lake-groundwater composite system according to claim 1, characterized in that: The lower end of the threaded sleeve (206) is coaxially fixedly connected to a limit plate (209); the limit plate (209) is in a hollow cone shape; the threaded rod (208) can pass through the limit plate (209) and be meshedly connected to the threaded sleeve (206); a conical surface corresponding to the limit plate (209) is provided at the upper end of the collector (215); and the upper end surface of the collector (215) can be in contact with and connected to the inner wall of the limit plate (209).

Images