Underground water level monitoring and automatic sampling integrated equipment

Abstract

The invention relates to the field of water level monitoring equipment, in particular to underground water level monitoring and automatic sampling integrated equipment which comprises an external fixing part, a replacement part is arranged outside the external fixing part, a top mounting part is arranged at the top of the external fixing part, a collecting part is arranged outside the replacement part, a monitoring part is arranged inside the top mounting part, and a sampling part is arranged inside the monitoring part. In other surveying and mapping geographic information services, in the water level monitoring process, the water pumping device can be started at any time according to actual requirements, and water sample collection is completed through suction force; when the monitoring position is changed, the water sample in the pipe can be discharged through blowing force to realize resampling, so that the complexity and errors of manual sampling are avoided, the quality and efficiency of water sample collection are improved, and the problem that water level monitoring and depth water sample collection cannot be synchronously processed in water quality monitoring during traditional sampling is avoided; and water level monitoring and water sample collection need to be carried out for many times in actual monitoring operation.

Description

Technical Field

[0001] The present invention relates to the field of water level monitoring equipment, and specifically to an integrated equipment for underground water level monitoring and automatic sampling. Background Art

[0002] In modern society, the monitoring and protection of groundwater are crucial for ensuring water resource security and maintaining ecological balance. Against the backdrop of the continuous development of the surveying and mapping geographic information field, other surveying and mapping geographic information services provide broad technical support and application ideas for the research and development of integrated equipment for underground water level monitoring and automatic sampling. Accurately grasping the changes in the underground water level and obtaining representative water samples for water quality analysis have become the key to understanding the groundwater conditions and formulating effective protection and management measures. Traditional methods for underground water level monitoring and water sample collection mostly rely on manual operations, which not only consume a large amount of manpower, material resources and time, but also have limited monitoring frequencies, making it difficult to ensure the real-time and accuracy of data. Therefore, an integrated equipment is needed to facilitate the monitoring and sampling of the underground water level.

[0003] In traditional underground water level monitoring and water sample collection, water level gauges based on the contact measurement principle are widely used. They achieve water level measurement by being manually lowered into the monitoring well. However, this technical solution has significant limitations: Firstly, since the length of the tape is fixed at the time of equipment factory production, it is difficult to flexibly replace according to the actual needs of monitoring wells at different depths, resulting in insufficient adaptability in scenarios such as deep groundwater monitoring and temporary monitoring point layout; Secondly, traditional water level gauges have a single function and can only achieve single-point data collection of the underground water level, and cannot meet the simultaneous processing of water level monitoring and deep water sample collection in water quality monitoring. As a result, in actual monitoring operations, it is necessary to insert multiple times for water level monitoring and water sample collection, which is not convenient for monitoring and sampling the underground water. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated equipment for underground water level monitoring and automatic sampling, so as to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: an integrated device for groundwater level monitoring and automatic sampling, including an outer fixing part, the outer fixing part includes a docking plug, four telescopic grooves distributed in a circular pattern are opened inside the docking plug, and restraint blocks are slidably connected inside the four telescopic grooves. A replacement part is provided outside the outer fixing part, the replacement part includes a winding frame, an inner connecting through hole is opened at the center position of the winding frame, a restraint ring is opened on the inner wall of the inner connecting through hole, a top mounting part is provided at the top of the outer fixing part, and a collection part is provided outside the replacement part. The collection part includes a connecting plug, a belt body is fixedly connected to the top of the connecting plug, a water pipe is fixedly connected to the outside of the belt body, a monitoring part is provided inside the top mounting part, and the monitoring part includes a fixing block, and a water level sensor is fixedly connected inside the fixing block.

[0006] Preferably, an inner top groove is opened on the bottom surface of the docking plug, threads are provided on the inner wall of the inner top groove, circular through holes are connected to the outside of the four telescopic grooves, and the inner sides of the four telescopic grooves are connected to the inner top groove through the circular through holes. Two opposite cylindrical rods are fixedly connected to each of the four restraint blocks. One cylindrical rod of each of the four restraint blocks is movably inserted into the inner top groove, and the other cylindrical rod of each of the four restraint blocks extends out from the circular through holes on the outside of the four telescopic grooves. A top restraint block is threadedly connected inside the inner top groove, two support frames are fixedly connected to the outer wall of the docking plug, and a return spring is fixedly connected to each of the four restraint blocks.

[0007] Preferably, two groups of outer clamping parts are provided outside the outer fixing part. Each of the two groups of outer clamping parts includes an outer mounting plate, the outer mounting plate is fixedly connected to the outer wall of the docking plug, an inner adjustment groove is opened on the outer mounting plate, a threaded through hole is connected to the inner adjustment groove, and an adjustment screw is threadedly connected to the inner adjustment groove through the threaded through hole. A restraint block is fixedly connected to the end position of the adjustment screw.

[0008] Preferably, disc-shaped structures are fixedly connected to both ends of the winding frame. Six restraint card slots distributed in a circular pattern are opened on one disc-shaped structure of the winding frame. The two restraint blocks are both movably inserted into two corresponding restraint card slots. Outer control handles distributed in a circular pattern are fixedly connected to the outer walls of the two disc-shaped structures of the winding frame. Threads are provided on the inner wall of the inner connecting through hole. The cylindrical rods of the four restraint blocks extending out from the four telescopic grooves are movably inserted into the restraint ring. A docking card slot is opened inside the winding frame. Six locking bolt holes distributed in a circular pattern are connected to the docking card slot. A docking jack is connected to the outside of the docking card slot.

[0009] Preferably, an external connection part is provided inside the replacement part. The external connection part includes an external connection pipe, and the external connection pipe is fixedly connected to the inner wall of the inner connection through hole. The pipe groove of the external connection pipe is connected to the docking card slot through a circular hole. A sampling tee is fixedly sleeved at the outer end of the external connection pipe.

[0010] Preferably, an external control part is provided inside the replacement part. The external control part includes a control insertion cylinder, and the control insertion cylinder is fixedly inserted into the docking card slot. A control component is provided inside the control insertion cylinder. A docking slot is formed on the outer wall of the control insertion cylinder. The docking slot is kept in docking with the docking jack. A connection component is provided on the inner wall of the docking slot. The connection component in the docking slot is electrically connected to the control component in the control insertion cylinder. An external control button is fixedly connected to the outside of the control insertion cylinder. The external control button is electrically connected to the control component in the control insertion cylinder.

[0011] Preferably, an indicator light is fixedly connected to the outside of the control insertion cylinder. The indicator light is electrically connected to the control component in the control insertion cylinder. A locking pressing cylinder is movably inserted into the control insertion cylinder. The locking pressing cylinder is threadedly connected to the inside of the inner connection through hole. The locking pressing cylinder keeps the control insertion cylinder in a pressed state. Six fixing bolt rods distributed in a circumferential manner are fixedly connected to the bottom surface of the control insertion cylinder. All six fixing bolt rods are fixedly inserted into the corresponding locking bolt holes.

[0012] Preferably, the top mounting part includes a top mounting frame, and the top mounting frame is fixedly connected to the top of the docking plug. An external mounting frame is fixedly sleeved on the top mounting frame. A protection cylinder is fixedly connected to the external mounting frame. A water leakage hole is formed at the bottom of the protection cylinder.

[0013] Preferably, a matching component is provided inside the connection plug. A connection patch is fixedly connected to the outer wall of the connection plug. The connection plug is fixedly inserted into the docking jack and the docking slot. The connection patch of the connection plug is kept in contact with the connection component on the inner wall of the docking slot. A connection wire is provided inside the belt body. The connection wire of the belt body is electrically connected to the matching component inside the connection plug. The end position of the water pipe is fixedly inserted into the external connection pipe. A sampling port is formed at the other end position of the water pipe.

[0014] Preferably, the fixing block is fixedly connected to the end of the water pipe with the sampling port. A matching component is provided inside the fixing block. The monitoring component inside the fixing block is electrically connected to the matching component inside the connecting plug through the belt body. Six water inlet grooves distributed in a circular pattern are formed on the outer wall of the fixing block. The water level sensor is electrically connected to the matching component inside the connecting plug. A restraint frame is slidably inserted into the fixing block. A counterweight is fixedly connected to the bottom of the restraint frame. A position sensor is fixedly connected to the top of the counterweight. The position sensor is electrically connected to the matching component inside the connecting plug.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. Between the external fixing part docking plug and the replacement part winding frame, through the cooperation of the top restraint block, restraint clamping block and restraint ring, rapid and accurate docking and separation are achieved. During installation, only need to insert the docking plug into the internal connection through hole and tighten the top restraint block to complete the connection; during disassembly, loosen the top restraint block and use the return spring to retract the restraint clamping block, then the winding frame can be easily replaced. This not only greatly shortens the equipment installation and debugging time, but also is more convenient to quickly replace the appropriate tape length according to different monitoring scenarios, significantly improving the flexibility and operation efficiency of the equipment, and effectively avoiding the problem that traditional sampling equipment is difficult to be flexibly replaced according to the actual needs of different depth monitoring wells, resulting in insufficient adaptability in scenarios such as deep groundwater monitoring and temporary monitoring point layout.

[0017] 2. In other surveying and mapping geographic information services, during the monitoring and sampling process, connect the external pumping device and the sample loading test tube through the sampling tee. During the water level monitoring process, the pumping device can be started at any time according to actual needs, and the water sample can be collected by suction; when the monitoring position changes, the water sample in the pipe can be emptied by blowing force to achieve re-sampling, avoiding the cumbersome process and errors of manual sampling, improving the quality and efficiency of water sample collection, and avoiding the problem that traditional sampling cannot meet the synchronous processing of water level monitoring and deep water sample collection in water quality monitoring, resulting in the need to extend into the water level monitoring and water sample collection multiple times during actual monitoring operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional assembly structure schematic diagram of the present invention;

[0019] Figure 2 is a three-dimensional assembly bottom view structure schematic diagram of the present invention;

[0020] Figure 3 is a partial sectional view schematic diagram of the present invention;

[0021] Figure 4 is from Figure 3 the enlarged schematic diagram of part A led out of the present invention;

[0022] Figure 5 Schematic diagram of the decomposition structure of the present invention;

[0023] Figure 6 Schematic diagram of the decomposed upward view structure of the present invention;

[0024] Figure 7 Schematic diagram of the assembly structure of the outer fixing part and the outer clamping part of the present invention;

[0025] Figure 8 Schematic diagram of the assembly structure of the replacement part and the external connection part of the present invention;

[0026] Figure 9 Schematic diagram of the assembly structure of the external control part of the present invention;

[0027] Figure 10 Schematic diagram of the assembly structure of the top mounting part of the present invention;

[0028] Figure 11 Schematic diagram of the assembly structure of the collection part and the monitoring part of the present invention;

[0029] Figure 12 For the present invention, from Figure 11 Enlarged schematic diagram of part B drawn out.

[0030] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0031] 1. Outer fixing part; 101. Docking plug; 102. Inner top groove; 103. Telescopic groove; 104. Constraint block; 105. Top binding block; 106. Support frame; 107. Return spring; 2. Outer clamping part; 201. Outer mounting plate; 202. Inner adjustment groove; 203. Adjusting screw; 204. Binding position block; 3. Replacement part; 301. Reel; 302. Binding position card slot; 303. External control handle; 304. Inner connection through hole; 305. Constraint ring; 306. Docking card slot; 307. Locking bolt hole; 308. Docking jack; 4. External connection part; 401. External pipe; 402. Sampling tee; 5. External control part; 501. Control insertion cylinder; 502. Docking slot; 503. External control button; 504. Indicator light; 505. Locking pressure cylinder; 506. Fixed bolt rod; 6. Top mounting part; 601. Top mounting frame; 602. External connection frame; 603. Protection cylinder; 604. Water leakage hole; 7. Collection part; 701. Connection plug; 702. Belt; 703. Water pipe; 704. Sampling port; 8. Monitoring part; 801. Fixed block; 802. Water inlet groove; 803. Water level sensor; 804. Constraint frame; 805. Counterweight; 806. Position sensor. Detailed implementation manners

[0032] 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1: Please refer to Figure 1 - Figure 12 , an integrated device for underground water level monitoring and automatic sampling, including an outer fixing part 1. The outer fixing part 1 includes a docking plug 101. Four circumferentially distributed telescopic grooves 103 are opened inside the docking plug 101. A restraint block 104 is slidably connected inside each of the four telescopic grooves 103. A replacement part 3 is provided outside the outer fixing part 1. The replacement part 3 includes a winding frame 301. An inner connecting through hole 304 is opened at the center position of the winding frame 301. A restraint ring 305 is opened on the inner wall of the inner connecting through hole 304. A top mounting part 6 is provided at the top of the outer fixing part 1. A collection part 7 is provided outside the replacement part 3. The collection part 7 includes a connecting plug 701. A belt body 702 is fixedly connected to the top of the connecting plug 701. A water pipe 703 is fixedly connected to the outside of the belt body 702. A monitoring part 8 is provided inside the top mounting part 6. The monitoring part 8 includes a fixing block 801. A water level sensor 803 is fixedly connected inside the fixing block 801.

[0034] An inner top groove 102 is opened on the bottom surface of the docking plug 101. Threads are provided on the inner wall of the inner top groove 102. Circular through holes are connected to the outside of the four telescopic grooves 103. The inner sides of the four telescopic grooves 103 are connected to the inner top groove 102 through the circular through holes. Two opposite cylindrical rods are fixedly connected to each of the four restraint blocks 104. One cylindrical rod of each of the four restraint blocks 104 is movably inserted into the inner top groove 102. The other cylindrical rod of each of the four restraint blocks 104 extends out from the circular through holes on the outside of the four telescopic grooves 103. A top restraint block 105 is threadedly connected inside the inner top groove 102. Two support frames 106 are fixedly connected to the outer wall of the docking plug 101. A return spring 107 is fixedly connected to each of the four restraint blocks 104.

[0035] Two groups of outer clamping parts 2 are provided outside the outer fixing part 1. Both groups of outer clamping parts 2 include an outer mounting plate 201. The outer mounting plate 201 is fixedly connected to the outer wall of the docking plug 101. An inner adjustment groove 202 is opened on the outer mounting plate 201. The inner adjustment groove 202 is connected to a threaded through hole. An adjustment screw 203 is threadedly connected to the inner adjustment groove 202 through the threaded through hole. A restraint block 204 is fixedly connected to the end of the adjustment screw 203.

[0036] Both ends of the coiling rack 301 are fixedly connected with disc-shaped structures. Six circumferentially distributed beam position clamping grooves 302 are formed in one disc-shaped structure of the coiling rack 301. Both beam position blocks 204 are movably inserted into two corresponding beam position clamping grooves 302. Outer control handles 303 distributed in a circle are fixedly connected to the outer walls of the two disc-shaped structures of the coiling rack 301. Threads are provided on the inner wall of the inner connection through hole 304. A cylindrical rod of four constraint blocks 104 extending from four telescopic grooves 103 is movably inserted into the constraint ring 305. A docking clamping groove 306 is formed inside the coiling rack 301. The docking clamping groove 306 is connected with six circumferentially distributed locking bolt holes 307. A docking jack 308 is connected to the outside of the docking clamping groove 306.

[0037] In this embodiment, by inserting the docking plug 101 into the inner connection through hole 304 and aligning the telescopic groove 103 with the constraint ring 305, and then screwing the top beam block 105 into the inner top groove 102, the top beam block 105 pushes the constraint block 104 during the screwing process, enabling it to be adjusted inside the telescopic groove 103, so that a cylindrical rod of the constraint block 104 extends out of the telescopic groove 103 and is inserted into the constraint ring 305 while extending, to complete the docking of the docking plug 101 and the coiling rack 301. During the removal process, only by removing the top beam block 105, the constraint block 104 contracts under the action of the return spring 107 and moves out of the constraint ring 305, then the connection to the coiling rack 301 can be released, facilitating the replacement process of the coiling rack 301, effectively avoiding the problem that traditional sampling equipment is difficult to be flexibly replaced according to the actual needs of different depth monitoring wells, resulting in insufficient adaptability in scenarios such as deep groundwater monitoring and temporary monitoring point layout.

[0038] Embodiment Two: Please refer to Figure 1 - Figure 12 , an external connection part 4 is provided inside the replacement part 3. The external connection part 4 includes an external connection pipe 401. The external connection pipe 401 is fixedly connected to the inner wall of the inner connection through hole 304. The pipe slot of the external connection pipe 401 is connected to the docking clamping groove 306 through a circular hole. A sampling tee 402 is fixedly sleeved at the outer end of the external connection pipe 401.

[0039] An external control part 5 is provided inside the replacement part 3. The external control part 5 includes a control insertion cylinder 501. The control insertion cylinder 501 is fixedly inserted into the docking clamping groove 306. A control component is provided inside the control insertion cylinder 501. A docking slot 502 is formed on the outer wall of the control insertion cylinder 501. The docking slot 502 is kept in docking with the docking jack 308. A connection component is provided on the inner wall of the docking slot 502. The connection component in the docking slot 502 is electrically connected to the control component in the control insertion cylinder 501. An external control button 503 is fixedly connected to the outside of the control insertion cylinder 501. The external control button 503 is electrically connected to the control component in the control insertion cylinder 501.

[0040] An indicator light 504 is fixedly connected to the outside of the control insertion cylinder 501. The indicator light 504 is electrically connected to the control component inside the control insertion cylinder 501. A locking pressing cylinder 505 is movably inserted inside the control insertion cylinder 501. The locking pressing cylinder 505 is threadedly connected inside the internal connection through-hole 304. The locking pressing cylinder 505 keeps the control insertion cylinder 501 in a pressed state. Six fixing bolt rods 506 distributed in a circle are fixedly connected to the bottom surface of the control insertion cylinder 501. All six fixing bolt rods 506 are fixedly inserted inside the corresponding locking bolt holes 307.

[0041] In this embodiment, when assembling the device, insert the control insertion cylinder 501 inside the docking card slot 306 and fix the two with screws. Then, threadedly connect the locking pressing cylinder 505 inside the internal connection through-hole 304 and press the control insertion cylinder 501 during the screwing-in process. Then, insert the fixing bolt rods 506 into the locking bolt holes 307 and connect them to the inner insertion side of the control insertion cylinder 501 to complete the fixation of the control insertion cylinder 501. After the control insertion cylinder 501 is fixed, the docking slot 502 and the docking jack 308 remain docked, facilitating the transmission and processing of device monitoring information.

[0042] Embodiment Three: Please refer to Figure 1 - Figure 12 The top-mounted part 6 includes a top-mounted frame 601. The top-mounted frame 601 is fixedly connected to the top of the docking plug 101. An external frame 602 is fixedly sleeved on the top-mounted frame 601. A protection cylinder 603 is fixedly connected to the external frame 602. A water leakage hole 604 is opened at the bottom of the protection cylinder 603.

[0043] A matching component is provided inside the connection plug 701. A connection patch is fixedly connected to the outer wall of the connection plug 701. The connection plug 701 is fixedly inserted inside the docking jack 308 and the docking slot 502. The connection patch of the connection plug 701 is in contact with the connection component on the inner wall of the docking slot 502. A connection wire is provided inside the belt body 702. The connection wire of the belt body 702 is electrically connected to the matching component inside the connection plug 701. The end position of the water pipe 703 is fixedly inserted inside the external connection pipe 401. A sampling port 704 is opened at the other end position of the water pipe 703.

[0044] The fixing block 801 is fixedly connected to the end of the water pipe 703 with a sampling port 704. A matching component is provided inside the fixing block 801. The monitoring component inside the fixing block 801 is electrically connected to the matching component inside the connection plug 701 through a belt body 702. Six water inlet grooves 802 distributed in a circular pattern are formed on the outer wall of the fixing block 801. The water level sensor 803 is electrically connected to the matching component inside the connection plug 701. A restraint frame 804 is slidably inserted into the fixing block 801. A counterweight 805 is fixedly connected to the bottom of the restraint frame 804. A position sensor 806 is fixedly connected to the top of the counterweight 805. The position sensor 806 is electrically connected to the matching component inside the connection plug 701.

[0045] In this embodiment, by fixedly inserting the connection plug 701 into the docking slot 502 and the docking hole 308, the connection patch on the outer wall of the connection plug 701 is kept in contact with the connection component on the inner wall of the docking slot 502, and the end position of the water pipe 703 is fixedly inserted into the inner part of the external connection pipe 401. In the idle state, the acquisition part 7 is wound on the winding frame 301, and the monitoring part 8 is slidably inserted into the inner part of the protection cylinder 603. During the acquisition process, the monitoring part 8 is extended into the underground monitoring hole through the acquisition part 7. When the water level sensor 803 comes into contact with the groundwater, it sends a trigger signal to the control component in the control insertion cylinder 501 to mark the underground water level information. As the monitoring part 8 drops, when it reaches the bottom of the groundwater, the counterweight 805 comes into contact with the bottom of the groundwater, causing its position to be adjusted relative to the fixing block 801 and triggering the position sensor 806, so as to send a trigger signal to the control component in the control insertion cylinder 501 through the position sensor 806 to mark the water level information at the bottom of the groundwater, thus completing the monitoring of the groundwater.

[0046] In other surveying and mapping geographic information services, during sampling, an external water pumping device, a sample tube, and the external connection pipe 401 are connected through a sampling tee 402. During the water level monitoring process, if water sample collection is required, the water pumping device can provide suction, and a suction force is formed around the sampling port 704 through the water pipe 703 to collect and process the water samples at the relative position. After the position changes, the water pumping device can provide blowing force to discharge the water samples in the pipe, which is convenient for re-sampling and use, avoiding the problem that in traditional sampling, it is impossible to meet the synchronous processing of water level monitoring and deep water sample collection in water quality monitoring, resulting in the need to insert the water level monitoring and water sample collection multiple times during actual monitoring operations.

[0047] It should be noted that after determining the position of the groundwater level, the adjusting screw 203 can be rotated to adjust the position under the action of the internal adjustment groove 202, so that the beam position block 204 is inserted into the beam position card slot 302 to restrain the winding frame 301 and avoid hindering the water sample monitoring and water sample collection process.

[0048] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated device for groundwater level monitoring and automatic sampling, comprising an outer fixing part (1), characterized in that, The outer fixing part (1) includes a docking plug (101). Four telescopic grooves (103) distributed in a circular pattern are formed inside the docking plug (101). A restraint block (104) is slidably connected to each of the four telescopic grooves (103). A replacement part (3) is provided outside the outer fixing part (1). The replacement part (3) includes a winding frame (301). An inscribed through hole (304) is formed at the center of the winding frame (301). A restraint ring (305) is formed on the inner wall of the inscribed through hole (304). A top mounting part (6) is provided at the top of the outer fixing part (1). A collection part (7) is provided outside the replacement part (3). The collection part (7) includes a connection plug (701). A belt body (702) is fixedly connected to the top of the connection plug (701). A water pipe (703) is fixedly connected to the outside of the belt body (702). A monitoring part (8) is provided inside the top mounting part (6). The monitoring part (8) includes a fixing block (801). A water level sensor (803) is fixedly connected inside the fixing block (801).

2. The integrated device for underground water level monitoring and automatic sampling according to claim 1, wherein: An inner top groove (102) is formed on the bottom surface of the docking plug (101). Threads are provided on the inner wall of the inner top groove (102). Circular through holes are connected to the outside of the four telescopic grooves (103). The inner sides of the four telescopic grooves (103) are connected to the inner top groove (102) through the circular through holes. Two opposite cylindrical rods are fixedly connected to each of the four restraint blocks (104). One cylindrical rod of each of the four restraint blocks (104) is movably inserted into the inner top groove (102). The other cylindrical rod of each of the four restraint blocks (104) extends out from the circular through holes on the outside of the four telescopic grooves (103). A top restraint block (105) is threadedly connected inside the inner top groove (102). Two support frames (106) are fixedly connected to the outer wall of the docking plug (101). A return spring (107) is fixedly connected to each of the four restraint blocks (104).

3. The integrated device for groundwater level monitoring and automatic sampling according to claim 2, wherein: Two outer clamping parts (2) are provided outside the outer fixing part (1). Each of the two outer clamping parts (2) includes an outer mounting plate (201). The outer mounting plate (201) is fixedly connected to the outer wall of the docking plug (101). An inner adjustment groove (202) is formed on the outer mounting plate (201). The inner adjustment groove (202) is connected to a threaded through hole. An adjustment screw (203) is threadedly connected to the inner adjustment groove (202) through the threaded through hole. A restraint block (204) is fixedly connected to the end of the adjustment screw (203).

4. The integrated device for underground water level monitoring and automatic sampling according to claim 3, characterized in that: Both ends of the coiling rack (301) are fixedly connected with disk-shaped structures. Six circumferentially distributed beam position clamping slots (302) are formed in one disk-shaped structure of the coiling rack (301). Both of the two beam position blocks (204) are movably inserted into two corresponding beam position clamping slots (302). On the outer walls of the two disk-shaped structures of the coiling rack (301), circumferentially distributed external control handles (303) are fixedly connected. The inner wall of the inner connection through hole (304) is provided with threads. A cylindrical rod of four constraint blocks (104) extending from the four telescopic slots (103) is movably inserted into the constraint ring (305). A docking clamping slot (306) is formed inside the coiling rack (301). The docking clamping slot (306) is connected with six circumferentially distributed locking bolt holes (307). The outside of the docking clamping slot (306) is connected with a docking jack (308).

5. The integrated equipment for groundwater level monitoring and automatic sampling according to claim 4, wherein: An external connection part (4) is arranged inside the replacement part (3). The external connection part (4) includes an external connection pipe (401). The external connection pipe (401) is fixedly connected to the inner wall of the inner connection through hole (304). The pipe slot of the external connection pipe (401) is connected with the docking clamping slot (306) through a circular hole. A sampling three-way joint (402) is fixedly sleeved at the outer end of the external connection pipe (401).

6. The integrated equipment for underground water level monitoring and automatic sampling according to claim 5, wherein: An external control part (5) is arranged inside the replacement part (3). The external control part (5) includes a control insertion cylinder (501). The control insertion cylinder (501) is fixedly inserted into the inside of the docking clamping slot (306). A control component is arranged inside the control insertion cylinder (501). A docking slot (502) is formed on the outer wall of the control insertion cylinder (501). The docking slot (502) is kept in docking with the docking jack (308). A connection component is arranged on the inner wall of the docking slot (502). The connection component in the docking slot (502) is electrically connected with the control component in the control insertion cylinder (501). An external control button (503) is fixedly connected to the outside of the control insertion cylinder (501). The external control button (503) is electrically connected with the control component in the control insertion cylinder (501).

7. The integrated equipment for groundwater level monitoring and automatic sampling according to claim 6, characterized in that: An indicator light (504) is fixedly connected to the outside of the control insertion cylinder (501). The indicator light (504) is electrically connected with the control component in the control insertion cylinder (501). A locking pressing cylinder (505) is movably inserted into the inside of the control insertion cylinder (501). The locking pressing cylinder (505) is threadedly connected to the inside of the inner connection through hole (304). The locking pressing cylinder (505) keeps the control insertion cylinder (501) in a pressed state. Six circumferentially distributed fixing bolt rods (506) are fixedly connected to the bottom surface of the control insertion cylinder (501). All six fixing bolt rods (506) are fixedly inserted into the corresponding locking bolt holes (307).

8. The integrated equipment for underground water level monitoring and automatic sampling according to claim 1, characterized in that: The top-mounted part (6) includes a top-mounted frame (601). The top-mounted frame (601) is fixedly connected to the top of the docking plug (101). An external frame (602) is fixedly sleeved on the top-mounted frame (601). A protection cylinder (603) is fixedly connected to the external frame (602). A water leakage hole (604) is formed at the bottom of the protection cylinder (603).

9. The integrated equipment for underground water level monitoring and automatic sampling according to claim 7, wherein: A cooperation component is provided inside the connection plug (701). A connection patch is fixedly connected to the outer wall of the connection plug (701). The connection plug (701) is fixedly inserted into the docking jack (308) and the docking slot (502). The connection patch of the connection plug (701) is in contact with the connection component on the inner wall of the docking slot (502). A connection wire is provided inside the belt body (702). The connection wire of the belt body (702) is electrically connected to the cooperation component inside the connection plug (701). The end position of the water pipe (703) is fixedly inserted into the outer connecting pipe (401). A sampling port (704) is formed at the other end position of the water pipe (703).

10. The integrated device for groundwater level monitoring and automatic sampling according to claim 9, wherein: The fixing block (801) is fixedly connected to the end of the water pipe (703) with the sampling port (704). A cooperation component is provided inside the fixing block (801). The monitoring component inside the fixing block (801) is electrically connected to the cooperation component inside the connection plug (701) through the belt body (702). Six water inlet grooves (802) distributed in a circular pattern are formed on the outer wall of the fixing block (801). The water level sensor (803) is electrically connected to the cooperation component inside the connection plug (701). A restraint frame (804) is slidably inserted into the fixing block (801). A counterweight block (805) is fixedly connected to the bottom of the restraint frame (804). A position sensor (806) is fixedly connected to the top of the counterweight block (805). The position sensor (806) is electrically connected to the cooperation component inside the connection plug (701).

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