Shallow geothermal exploration water body detection sampling equipment and method

Abstract

The invention belongs to the technical field of water pollution detection sampling, and particularly relates to shallow geothermal exploration water body detection sampling equipment and method. Comprising a supporting frame and a head inserting pipe, and a hydraulic telescopic rod is fixedly installed on the supporting frame; the head insertion pipe comprises two first semicircular plates which are symmetrically arranged, one sides of the two first semicircular plates are hinged, and the first semicircular plates are folded to form a pipe structure; a semicircular block is fixedly arranged at the upper end of the first semicircular plate in an extending mode, and an annular groove is formed in the outer surface of the semicircular block. According to the invention, the portability of the sampling equipment can be improved, the shallow geothermal exploration water body sampling is facilitated, and meanwhile, the mounting efficiency is greatly improved; the water pumping hole can be protected from being blocked during installation and sampling without water pumping, meanwhile, the success rate and efficiency of sampling are improved, repeated use is facilitated, and the water level condition of shallow terrestrial heat can be monitored; the fixing device can be conveniently and rapidly fixed, and the problem that the semicircular plates are disengaged can be solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of water pollution detection sampling, and particularly relates to a shallow geothermal exploration water body detection sampling device and method. BACKGROUND

[0002] Shallow geothermal water body refers to underground water within a range of 50-200 meters below the earth's surface. Because it is heated by the heat inside the earth, the temperature is higher than that of conventional underground water. They are mainly distributed in areas with relatively active geothermal activity and can be used for geothermal heating, power generation and spa treatment. Shallow geothermal water body is a green energy resource that is abundant and renewable. When using shallow geothermal water body, it is usually necessary to sample and detect shallow geothermal water body to avoid problems such as radioactivity of part of the water body; at the same time, it is also necessary to regularly monitor whether the water body is polluted due to overuse.

[0003] A patent with the application number 202411860766.7 discloses a device for sampling radioactive samples of geothermal fluid, which comprises a sampling cylinder and a water filling cylinder arranged below the sampling cylinder. The top of the sampling cylinder is provided with an exhaust hole, and the middle section is provided with an air inlet hole. The bottom of the sampling cylinder is provided with a notched groove and a water inlet channel, and the notched groove is provided with a water inlet pipe communicated with the water inlet channel. The outer edge surface of the water inlet pipe is provided with a first water inlet. The water inlet pipe penetrates the upper section of the water filling cylinder and is rotationally connected thereto, and the upper section of the water filling cylinder is provided with an outer pipe sleeve matched with the water inlet pipe. The outer pipe sleeve is provided with a second water inlet. When the water filling cylinder is at rest, the first water inlet and the second water inlet are misaligned and closed. When the water filling cylinder is turned over, the first water inlet and the second water inlet are coincident and communicated. The patent has better sampling function and self-closing property, and higher sampling safety.

[0004] When sampling and detecting shallow geothermal water body, it is usually necessary to drill a hole and then place a water pumping pipe in the hole for water sampling. However, due to the long distance, it is difficult to smoothly insert the water pipe into the deep part of the hole and smoothly sample, and it is easy to cause blockage. Some equipment uses hard pipes for insertion, but a long distance requires a large enough insertion device to insert, so the device has a large volume and poor portability, and the installation is complex, which cannot be applied to sampling for exploration. Moreover, multiple sampling is often required to regularly monitor water pollution, but the end of the water pumping pipe is also easily blocked when immersed in the water for a long time after single sampling, which makes it difficult to repeatedly sample regularly and reduces the efficiency. SUMMARY

[0005] In order to solve the problems in the prior art, the present application provides a shallow geothermal exploration water body detection sampling device and method, the head insertion tube and the intermediate insertion tube are designed to be inserted in batches, which can improve the portability of the sampling device, facilitate the sampling of shallow geothermal exploration water body, and can be quickly installed without complicated fixing, greatly improving the installation efficiency; the water pumping pipe mechanism cooperates with the protection mechanism to protect the water pumping hole from being blocked during installation and non-water sampling, and can be quickly opened by pulling during water sampling, thereby improving the success rate and efficiency of sampling, facilitating repeated use, and monitoring the water level of shallow geothermal water; the connecting mechanism is designed to be fixed quickly and avoid the problem of the semicircular plate being separated.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions: A shallow geothermal exploration water body detection sampling device, comprising a support frame and a head insertion tube, wherein the support frame is fixedly provided with a hydraulic telescopic rod; the head insertion tube comprises two symmetrically arranged first semicircular plates, one side of the two first semicircular plates is hingedly connected, and the first semicircular plates are folded to form a pipe structure; a semicircular block is fixedly arranged at the upper end of the first semicircular plate, and a ring groove is formed in the outer surface of the semicircular block; a connecting mechanism is arranged at the upper end of the semicircular block, and the connecting mechanism is detachably fixedly connected with the telescopic end of the hydraulic telescopic rod; the device further comprises a plurality of intermediate insertion tubes; each intermediate insertion tube comprises two hingedly connected second semicircular plates, the structure of the second semicircular plate is the same as that of the first semicircular plate, and a fitting groove is formed in the inner wall of the lower end of the second semicircular plate; the fitting groove is fitted with the upper end of the corresponding ring groove; a water pumping pipe mechanism is arranged in the head insertion tube.

[0007] Further, the water pumping pipe mechanism comprises a water pumping pipe, a fixed plate is fixedly connected to the inner wall of the first semicircular plate, a semiring block is fixedly arranged at the end of the fixed plate, and the water pumping pipe is located between the two semiring blocks; a semicircular rod is fixedly connected to the lower end of the first semicircular plate, and the two semicircular rods are folded to form a whole rod; a first reset spring is fixedly connected to the bottom of one of the fixed plates, a connecting end block is fixedly arranged at the end of the water pumping pipe; the water pumping pipe extends into the interior of the head insertion tube and passes around the two semicircular rods, and the connecting end block is fixedly connected with one end of the first reset spring; a plurality of water pumping holes are formed in the side wall of the water pumping pipe close to the connecting end block.

[0008] Further, a protection mechanism is arranged at the lower end of the head insertion tube, the protection mechanism comprises two arc blocks, the hinge blocks at the upper ends of the arc blocks are hingedly connected with the hinge grooves at the lower ends of the corresponding first semicircular plates; the two arc blocks are folded to form a conical structure; the two arc blocks are fixedly connected by a second reset spring.

[0009] Further, the outer wall of the water pumping pipe is fixedly connected with a fixing ring, two steel wires are fixedly connected with the fixing ring in a symmetrical manner; the outer wall of the first semicircular plate is fixedly provided with a connecting block, a through hole is formed in the side wall of the first semicircular plate, the steel wires pass through the corresponding through holes and are fixedly connected with the connecting block.

[0010] Further, the fixing ring is located above the two semicircular rods; when in the initial state, the two arc-shaped blocks are closed; when taking water, the water pumping pipe is pulled up, the two arc-shaped blocks are opened, and the water pumping hole is located below the head pipe.

[0011] Further, the connecting mechanism comprises an L-shaped plate, a sliding groove is formed in the upper end of the semicircular block, one end of the L-shaped plate is slidably connected with the corresponding sliding groove; a sliding rod is fixedly connected with the sliding groove, a sliding hole is formed in the L-shaped plate and slidably connected with the sliding rod; the two ends of the sliding rod are sleeved with limiting springs.

[0012] Further, one end of the L-shaped plate is provided with a lower threaded hole, the end of the telescopic end is fixedly provided with a connecting plate in a symmetrical manner, the connecting plate is provided with an upper threaded hole and is detachably fixedly connected with the corresponding lower threaded hole through bolts; limiting plates are fixedly arranged below the two sides of the connecting plate, and the L-shaped plate is located between the two limiting plates.

[0013] Further, the device further comprises a tail pipe, the tail pipe has the same structure as the intermediate pipe, and a water pipe accommodating groove is formed in the annular groove of the tail pipe, used for accommodating the water pumping pipe; a pipe cover is inserted into the upper end of the tail pipe.

[0014] Further, the support frame comprises a support disc, support feet are fixedly arranged around the bottom of the support disc, and the support feet are fixed to the ground through anchor bolts; a second through hole is formed in the middle of the support disc, and the telescopic end of the hydraulic telescopic rod passes through the second through hole.

[0015] A method for operating the shallow geothermal exploration water body detection sampling device, comprising the following steps: S1, fixing the support frame at the hole position on the ground, then inserting the protection mechanism into the hole, and fixing the connecting mechanism of the head pipe to the telescopic end of the hydraulic telescopic rod; then controlling the telescopic end to press down, and inserting the head pipe into the hole; S2, disassembling the fixing of the telescopic end and the head pipe, then controlling the telescopic end to move up, sleeving the intermediate pipe at the end of the head pipe, so that the water pumping pipe is located in the intermediate pipe; and fixing the connecting mechanism of the telescopic end and the intermediate pipe; then continuing to control the telescopic end to press down, inserting the intermediate pipe into the hole, and thus repeatedly inserting multiple intermediate pipes; and finally inserting the tail pipe; S3, after reaching the designated position, the two arc-shaped blocks are opened by pulling the water suction pipe, the water suction hole is located below the head pipe, and then water sampling is carried out; after the sampling is completed, the water suction pipe is loosened to automatically reset, and the next sampling is waited; S4, when disassembly is needed, reverse operation is sequentially pulled up for disassembly.

[0016] Compared with the prior art, the present application has the following beneficial effects: (1) The head pipe and the intermediate pipe are designed to be inserted in batches, which can improve the portability of the sampling equipment, facilitate shallow geothermal exploration water sampling, and quickly install without complicated fixing, greatly improving the installation efficiency; specifically, the support frame is fixed at the ground hole position, and the connecting mechanism of the head pipe is fixedly connected with the telescopic end of the hydraulic telescopic rod; then the telescopic end is controlled to be pressed down, and the head pipe is inserted into the hole; then the fixing between the telescopic end and the head pipe is disassembled, the telescopic end is controlled to move up, and the intermediate pipe is sleeved on the end of the head pipe, so that the water suction pipe is located in the intermediate pipe; and the connecting mechanism of the telescopic end and the intermediate pipe is fixedly connected; then the telescopic end is continuously controlled to be pressed down, and the intermediate pipe is inserted into the hole, so that a plurality of intermediate pipes are inserted in a loop; and finally, the tail pipe is inserted; in this way, the plurality of intermediate pipes and the head pipe and the tail pipe are inserted in batches, so that the support frame does not need to be too high to be constructed, and the pipeline does not need to be too long, which is convenient for carrying the equipment and facilitates shallow geothermal exploration water sampling work; at the same time, the two second semicircular plates hinged to the intermediate pipe can directly sleeve the water pipe outside the water pipe mechanism, without repeated fixing; and only the connecting mechanism of the intermediate pipe and the head pipe and the tail pipe needs to be temporarily fixed with the telescopic end, as long as the telescopic end is fixed, the two corresponding semicircular plates can be limited and cannot be opened, and the intermediate pipe inserted into the hole cannot be opened, so that the two second semicircular plates hinged to the intermediate pipe do not need to be fixed repeatedly, and therefore the installation efficiency is greatly improved.

[0017] (2) This invention, through the cooperation of the pumping pipe mechanism and the protection mechanism, can protect the pumping hole from blockage during installation and when not pumping water for sampling. Simultaneously, during water sampling, the pumping hole can be quickly opened by pulling, thereby improving the success rate and efficiency of sampling, facilitating reuse, and also monitoring the water level of shallow geothermal areas. Specifically, during installation, the protection mechanism prevents some soil from blocking the pumping hole during the downward pressing of the head tube. After installation, when not pumping water for sampling, the arc-shaped block initially blocks large impurities, and the bending design of the pumping pipe ensures that the pumping hole is not at the bottom of the head tube, thus preventing contact with water. Prolonged immersion in water can cause impurities to adhere to the suction port, leading to blockages. However, when water sampling is needed, pulling the suction pipe raises it, causing the steel cable to pull the arc-shaped block open and the first return spring to extend, positioning the suction port at the bottom of the head tube. At this point, the suction port is immersed in the water, enabling rapid sampling. This pulling method avoids the conventional pushing method, preventing blockages and improving sampling success rate and efficiency. Furthermore, when the suction pipe is released, the first and second return springs quickly reset and protect the pipe, facilitating reuse. Additionally, the lifting and lowering mechanism allows staff to quickly monitor the water level, which is beneficial for subsequent utilization of the geothermal water.

[0018] (3) Through the structural design of the connecting mechanism, the present invention can not only fix the pipes quickly and easily, but also avoid the problem of the semicircular plates coming off. Specifically, by fitting the middle insert tube onto the end of the head insert tube and placing the water pipe inside the middle insert tube, there is no need to rotate the middle insert tube. Only the sliding L-shaped plate is needed to align and connect the upper threaded hole with the corresponding lower threaded hole. After fixing, the limiting plate can limit the L-shaped plate to prevent the two second semicircular plates from coming off. After the upper threaded hole and the corresponding lower threaded hole are aligned and fixed, even if the middle insert tube rotates under the rebound force of the limiting spring, the limiting plate will not cause the two second semicircular plates to come off, thus achieving both convenient and quick fixing and avoiding the problem of the semicircular plates coming off. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a shallow geothermal exploration water body detection and sampling device according to the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of a shallow geothermal exploration water body detection and sampling device according to the present invention; Figure 3 This is a schematic diagram of the dispersed structure of a shallow geothermal exploration water body detection and sampling device according to the present invention; Figure 4 This is a partial structural schematic diagram of a shallow geothermal exploration water body detection and sampling device according to the present invention; Figure 5 This is a partial structural diagram of the connection mechanism of a shallow geothermal exploration water body detection and sampling device according to the present invention; Figure 6 This is a schematic diagram of the pumping pipe structure of a shallow geothermal exploration water body detection and sampling device according to the present invention; Figure 7 This is a schematic diagram of a partially dispersed structure of a shallow geothermal exploration water body detection and sampling device according to the present invention; Figure 8 This is a schematic diagram of the internal structure of the head tube of a shallow geothermal exploration water body detection and sampling device according to the present invention. Figure 9 This is a schematic diagram of the installation structure of a shallow geothermal exploration water body detection and sampling device according to the present invention; Figure 10 This is a schematic diagram of the intermediate tube structure of a shallow geothermal exploration water body detection and sampling device according to the present invention; Figure 11 This is a schematic diagram of the tail tube structure of a shallow geothermal exploration water body detection and sampling device according to the present invention.

[0020] The attached figures are labeled as follows: Support frame-100, support plate-110, second through hole-111, support foot-120, hydraulic telescopic rod-200, telescopic end-210, connecting plate-220, limiting plate-230, head insertion tube-300, first semicircular plate-310, through hole-311, annular groove-320, semicircular block-330, sliding groove-331, fixing plate-340, semi-ring block-341, semicircular rod-350, connecting mechanism-400, L-shaped plate-410, lower threaded hole- 411, Slide rod - 420, Limiting spring - 430, Water suction pipe - 500, Fixing ring - 510, Connecting end block - 520, First return spring - 530, Water suction hole - 540, Protection mechanism - 600, Arc block - 610, Hinge block - 620, Connecting block - 630, Second return spring - 640, Steel wire rope - 700, Intermediate insert pipe - 800, Second semicircular plate - 810, Fitting groove - 820, Tail insert pipe - 900, Water pipe receiving slot - 910. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0022] Although the steps in this invention are arranged by reference numerals, this is not intended to limit the order of the steps. Unless the order of the steps is explicitly stated or the execution of a step requires other steps as a basis, the relative order of the steps can be adjusted. It is understood that the term "and / or" as used herein refers to and covers any and all possible combinations of one or more of the associated listed items.

[0023] Example like Figures 1-11 As shown, a shallow geothermal exploration water sampling device includes a support frame 100 and a head tube 300. A hydraulic telescopic rod 200 is fixedly installed on the support frame 100. The head tube 300 includes two symmetrically arranged first semicircular plates 310, hinged on one side, forming a tube structure when closed. A semicircular block 330 extends and is fixedly provided at the upper end of each of the first semicircular plates 310. An annular groove 320 is formed on the outer surface of the semicircular block 330. The upper end is equipped with a connecting mechanism 400, which is detachably and fixedly connected to the telescopic end 210 of the hydraulic telescopic rod 200; the device also includes multiple intermediate tubes 800; each intermediate tube 800 includes two hinged second semicircular plates 810, the structure of which is the same as that of the first semicircular plate 310, and the lower inner wall of the second semicircular plate 810 is provided with a fitting groove 820; the fitting groove 820 fits into the upper end of the corresponding annular groove 320; a water pumping mechanism is installed inside the head tube 300.

[0024] The structural design of the head tube 300 and intermediate tube 800 of this invention allows for batch insertion of the pipes through multiple insertions. This improves the portability of the sampling equipment, facilitating water sampling in shallow geothermal exploration. Furthermore, it enables rapid installation without cumbersome installation and fixing, significantly improving installation efficiency. Specifically, a support frame 100 is fixed at the drilled hole in the ground, and the connecting mechanism 400 of the head tube 300 is fixedly connected to the telescopic end 210 of the hydraulic telescopic rod 200. Then, the telescopic end 210 is pressed down to insert the head tube 300 into the hole. Next, the fixing between the telescopic end 210 and the head tube 300 is disengaged, and the telescopic end 210 is moved upwards, allowing the fitting groove 820 of the intermediate tube 800 to fit over the end of the head tube 300, positioning the pumping pipe 500 within the intermediate tube 800. The connecting mechanism 400 of the telescopic end 210 is then fixedly connected to the intermediate tube 800. The process is repeated, with the telescopic end 210 pressed down again to insert the intermediate tube 800 into the hole. Multiple intermediate insertion tubes 800 are inserted in a ring, and finally, a tail insertion tube 900 is inserted. This method allows the multiple intermediate insertion tubes 800, the head insertion tube 300, and the tail insertion tube 900 to be inserted in batches, enabling the support frame 100 to be installed without excessive height and without excessively long pipes, facilitating equipment transport and aiding in shallow geothermal exploration water sampling. Simultaneously, the two second semicircular plates 810 hinged to the intermediate insertion tubes 800 allow the intermediate insertion tubes 800 to be directly fitted onto the outside of the water pipe of the pumping mechanism without repeated insertion. Furthermore, only the connecting mechanism 400 of the intermediate insertion tubes 800, the head insertion tube 300, and the tail insertion tube 900 needs to be temporarily fixed to the telescopic end 210. Once fixed to the telescopic end 210, the two corresponding semicircular plates are limited and will not open on their own, and the intermediate insertion tube 800 inside the insertion hole will also not open on its own. Therefore, there is no need to repeatedly fix the two second semicircular plates 810 hinged to the intermediate insertion tubes 800, thus significantly improving installation efficiency.

[0025] It is worth noting that the hydraulic telescopic rod 200 of the present invention is powered by external electricity. At the same time, the ground end of the water pumping mechanism has a pipe winding device and a water pumping device, which are conventional existing settings and will not be described in detail here.

[0026] It is worth emphasizing that the ground drilling position of the present invention is a hole drilled in advance by the drilling equipment, and the diameter is smaller than the diameter of the head insertion tube 300, the middle insertion tube 800, etc., so as to ensure that the insertion tube 300 is firmly inserted into the hole later; and the depth of the fitting groove 820 and the corresponding annular groove 320 in the accompanying drawings are only schematic diagrams in the specification. In order to meet the stability of the docking, they can be adjusted according to the actual situation, and will not be described in detail here.

[0027] Furthermore, the water pumping mechanism includes a water pumping pipe 500. A fixing plate 340 is fixedly connected to the middle of the inner wall of the first semicircular plate 310. A semi-ring block 341 is fixedly provided at the end of the fixing plate 340. The water pumping pipe 500 is located between two semi-ring blocks 341. A semi-circular rod 350 is fixedly connected to the lower end of the first semicircular plate 310. The two semi-circular rods 350 are joined together to form a whole rod. A first return spring 530 is fixedly connected to the bottom of one of the fixing plates 340. A connecting end block 520 is fixedly provided at the end of the water pumping pipe 500. The water pumping pipe 500 extends into the interior of the head insertion tube 300 and passes around the two semi-circular rods 350. The connecting end block 520 is fixedly connected to one end of the first return spring 530. A plurality of water pumping holes 540 are provided through the side wall of the water pumping pipe 500 near the connecting end block 520.

[0028] Furthermore, the lower end of the head insertion tube 300 is provided with a protection mechanism 600, which includes two arc-shaped blocks 610. The hinge block 620 at the upper end of the arc-shaped block 610 is hinged to the hinge groove at the lower end of the corresponding first semi-circular plate 310. The two arc-shaped blocks 610 are closed to form a conical structure. The two arc-shaped blocks 610 are fixedly connected by a second return spring 640.

[0029] This invention, through the cooperation of the pumping pipe mechanism and the protection mechanism 600, can protect the pumping hole 540 from being blocked during installation and when not pumping water for sampling. At the same time, during water pumping for sampling, the pumping hole can be quickly opened by pulling, thereby improving the success rate and efficiency of sampling, facilitating reuse, and also monitoring the water level of shallow geothermal areas; a detailed description will follow.

[0030] Furthermore, a fixing ring 510 is fixedly connected to the outer wall of the water pumping pipe 500, and two steel wire ropes 700 are symmetrically fixedly connected to the fixing ring 510; a connecting block 630 is fixedly provided on the outer wall of the first semicircular plate 310, and a through hole 311 is provided through the side wall of the first semicircular plate 310, through which the steel wire rope 700 passes and is fixedly connected to the connecting block 630.

[0031] Furthermore, the fixing ring 510 is located above the two semi-circular rods 350; when in the initial state, the two arc-shaped blocks 610 are closed; when water is drawn, the water pipe 500 is pulled up, the two arc-shaped blocks 610 are opened, and the water drawing hole 540 is located below the head insertion tube 300.

[0032] During installation, the head insertion tube 300 is pressed down, and the protective mechanism 600 prevents some soil from blocking the water extraction hole 540. After installation, when not sampling, the arc-shaped block 610 initially blocks large impurities, and the winding design of the water extraction pipe 500 prevents the water extraction hole 540 from being at the bottom of the head insertion tube 300, thus avoiding contact with water. This prevents the water extraction hole 540 from being submerged for extended periods, thus preventing impurities from adhering to it and causing blockage. Simultaneously, when sampling is required, the water extraction pipe 500 can be pulled... As the tube moves upward, the steel wire rope 700 pulls the arc-shaped block 610 open, and the first return spring 530 extends, so that the water inlet 540 is at the bottom of the head insertion tube 300. At this time, the water inlet 540 is immersed in the water body to achieve rapid water sampling. The pulling method avoids the conventional pushing of the water pipe for sampling, avoids the problem of blockage, and improves the success rate and efficiency of sampling. When the water inlet 500 is released, the first return spring 530 and the second return spring 640 can quickly reset and protect the water inlet 500, which is convenient for reuse. In addition, due to the lifting and lowering water pumping of the water inlet 540, the staff can quickly grasp the water level, which is beneficial to the subsequent utilization of geothermal water.

[0033] Furthermore, the connecting mechanism 400 includes an L-shaped plate 410, and a groove 331 is provided at the upper end of the semi-circular block 330. One end of the L-shaped plate 410 is slidably connected to the corresponding groove 331. A sliding rod 420 is fixedly connected to the groove 331. A sliding hole is passed through the L-shaped plate 410 and slidably connected to the sliding rod 420. Limiting springs 430 are sleeved at both ends of the sliding rod 420.

[0034] Furthermore, one end of the L-shaped plate 410 is provided with a lower threaded hole 411, and the end of the telescopic end 210 is symmetrically provided with a connecting plate 220. The connecting plate 220 is provided with an upper threaded hole and is detachably fixedly connected to the corresponding lower threaded hole 411 by bolts. Limiting plates 230 are fixedly provided on both sides of the lower part of the connecting plate 220, and the L-shaped plate 410 is located between the two limiting plates 230.

[0035] The present invention, through the structural design of the connecting mechanism 400, can both facilitate quick and easy fixation and avoid the problem of the semicircular plates detaching. Specifically, by fitting the intermediate insertion tube 800 onto the end of the head insertion tube 300, and placing the water suction tube 500 inside the intermediate insertion tube 800, there is no need to rotate the intermediate insertion tube 800. Simply sliding the L-shaped plate 410 is sufficient to align and connect the upper threaded hole with the corresponding lower threaded hole 411. After fixing, the limiting plate 230 can limit the L-shaped plate 410 to prevent the two second semicircular plates 810 from detaching. After the upper threaded hole and the corresponding lower threaded hole 411 are aligned and fixed, even if the intermediate insertion tube 800 rotates under the rebound force of the limiting spring 430, the limiting plate 230 will not cause the two second semicircular plates 810 to detach, thus achieving both convenient and quick fixation and avoiding the problem of the semicircular plates detaching.

[0036] Furthermore, the device also includes a tail tube 900, which has the same structure as the intermediate tube 800, and a water pipe receiving slot 910 is provided through the annular groove 320 of the tail tube 900 for receiving the water pumping pipe 500; a pipe cap is also inserted into the upper end of the tail tube 900.

[0037] The present invention prevents ground debris from falling into the tail insertion pipe 900 by using a pipe cover, and facilitates the subsequent periodic extraction of water by the water pipe 500 by using a water pipe receiving slot 910.

[0038] Furthermore, the support frame 100 includes a support plate 110, and support feet 120 are fixedly provided around the bottom of the support plate 110. The support feet 120 are fixed to the ground by anchor bolts. A second through hole 111 is provided through the middle of the support plate 110, and the telescopic end 210 of the hydraulic telescopic rod 200 passes through the second through hole 111.

[0039] A method for operating the aforementioned shallow geothermal exploration water body detection and sampling equipment includes the following steps: S1. Fix the support frame 100 at the drilling location in the ground, then insert the protection mechanism 600 into the hole, and fix the connecting mechanism 400 of the head tube 300 to the telescopic end 210 of the hydraulic telescopic rod 200; then control the telescopic end 210 to press down and insert the head tube 300 into the hole. S2. Disconnect the telescopic end 210 from the head insertion tube 300, then control the telescopic end 210 to move upward and place the intermediate insertion tube 800 onto the end of the head insertion tube 300, so that the water suction tube 500 is located inside the intermediate insertion tube 800; then fix the telescopic end 210 and the intermediate insertion tube 800 to the connecting mechanism 400; then continue to control the telescopic end 210 to press down and insert the intermediate insertion tube 800 into the hole, and so on, inserting multiple intermediate insertion tubes 800 in a cyclical manner; and finally insert the tail insertion tube 900. S3. After reaching the designated position, pull the water pumping pipe 500 to open the two arc-shaped blocks 610, so that the water pumping hole 540 is located below the head insertion tube 300, and then pump water to take a sample; after the sampling is completed, release the water pumping pipe 500 to automatically reset and wait for the next sampling. S4. When disassembly is required, simply pull up in reverse order to disassemble.

[0040] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A shallow geothermal exploration water body detection and sampling device, characterized in that, The device includes a support frame (100) and a head insertion tube (300). A hydraulic telescopic rod (200) is fixedly installed on the support frame (100). The head insertion tube (300) includes two symmetrically arranged first semicircular plates (310), which are hinged on one side to form a tube structure. A semicircular block (330) is fixedly extended from the upper end of the first semicircular plate (310), and an annular groove (320) is formed on the outer surface of the semicircular block (330). A connecting mechanism is installed at the upper end of the semicircular block (330). 400), the connecting mechanism (400) is detachably fixedly connected to the telescopic end (210) of the hydraulic telescopic rod (200); the device also includes a plurality of intermediate tubes (800); the intermediate tube (800) includes two hinged second semicircular plates (810), the structure of the second semicircular plate (810) is the same as that of the first semicircular plate (310), and the lower end of the inner wall of the second semicircular plate (810) is provided with a fitting groove (820); the fitting groove (820) fits into the upper end of the corresponding annular groove (320); a water pumping mechanism is installed in the head tube (300).

2. The shallow geothermal exploration water body detection and sampling equipment according to claim 1, characterized in that, The pumping mechanism includes a pumping pipe (500), a fixing plate (340) fixedly connected to the middle of the inner wall of the first semicircular plate (310), a semi-ring block (341) fixedly provided at the end of the fixing plate (340), and the pumping pipe (500) located between the two semi-ring blocks (341); a semi-circular rod (350) fixedly connected to the lower end of the first semicircular plate (310), and the two semi-circular rods (350) are joined together to form a whole rod; one of the fixing plates (340) A first return spring (530) is fixedly connected to the bottom of the water pipe (500), and a connecting end block (520) is fixedly provided at the end of the water pipe (500); the water pipe (500) extends into the interior of the head insertion tube (300) and passes around two semi-circular rods (350); the connecting end block (520) is fixedly connected to one end of the first return spring (530); a plurality of water holes (540) are provided through the side wall of the water pipe (500) near the connecting end block (520).

3. The shallow geothermal exploration water body detection and sampling equipment according to claim 2, characterized in that, The lower end of the head cannula (300) is provided with a protective mechanism (600), which includes two arc-shaped blocks (610). The hinge block (620) at the upper end of the arc-shaped block (610) is hinged to the hinge groove at the lower end of the corresponding first semicircular plate (310). The two arc-shaped blocks (610) are closed to form a conical structure. The two arc-shaped blocks (610) are fixedly connected by a second return spring (640).

4. The shallow geothermal exploration water body detection and sampling equipment according to claim 3, characterized in that, A fixing ring (510) is fixedly connected to the outer wall of the water pumping pipe (500), and two steel wire ropes (700) are symmetrically fixedly connected to the fixing ring (510); a connecting block (630) is fixedly provided on the outer wall of the first semicircular plate (310), and a through hole (311) is opened through the side wall of the first semicircular plate (310). The steel wire rope (700) passes through the corresponding through hole (311) and is fixedly connected to the connecting block (630).

5. The shallow geothermal exploration water body detection and sampling equipment according to claim 4, characterized in that, The fixing ring (510) is located above the two semicircular rods (350); when in the initial state, the two arc blocks (610) close together; when water is taken, the water pipe (500) is pulled up, the two arc blocks (610) open, and the water hole (540) is located below the head insertion tube (300).

6. The shallow geothermal exploration water body detection and sampling equipment according to claim 1, characterized in that, The connecting mechanism (400) includes an L-shaped plate (410), and a groove (331) is provided at the upper end of the semicircular block (330). One end of the L-shaped plate (410) is slidably connected to the corresponding groove (331). A sliding rod (420) is fixedly connected to the groove (331). A sliding hole is passed through the L-shaped plate (410) and slidably connected to the sliding rod (420). Limiting springs (430) are sleeved at both ends of the sliding rod (420).

7. The shallow geothermal exploration water body detection and sampling equipment according to claim 6, characterized in that, One end of the L-shaped plate (410) is provided with a lower threaded hole (411), and the end of the telescopic end (210) is symmetrically provided with a connecting plate (220). The connecting plate (220) is provided with an upper threaded hole and is detachably fixedly connected to the corresponding lower threaded hole (411) by bolts. Limiting plates (230) are fixedly provided on both sides of the connecting plate (220), and the L-shaped plate (410) is located between the two limiting plates (230).

8. The shallow geothermal exploration water body detection and sampling equipment according to claim 1, characterized in that, The device also includes a tail tube (900), which has the same structure as the middle tube (800), and a water pipe receiving slot (910) is provided through the annular groove (320) of the tail tube (900) for receiving the water pumping pipe (500); a pipe cap is also inserted into the upper end of the tail tube (900).

9. The shallow geothermal exploration water body detection and sampling equipment according to claim 1, characterized in that, The support frame (100) includes a support plate (110), and support feet (120) are fixed around the bottom of the support plate (110). The support feet (120) are fixed to the ground by anchor bolts. A second through hole (111) is provided in the middle of the support plate (110), and the telescopic end (210) of the hydraulic telescopic rod (200) passes through the second through hole (111).

10. A method for operating the shallow geothermal exploration water body detection and sampling equipment according to any one of claims 1 to 9, characterized in that, Includes the following steps: S1. Fix the support frame (100) at the drilling location on the ground, then insert the protection mechanism (600) into the hole, and fix the connecting mechanism (400) of the head tube (300) to the telescopic end (210) of the hydraulic telescopic rod (200); then control the telescopic end (210) to press down and insert the head tube (300) into the hole. S2. Disconnect the telescopic end (210) from the head tube (300), then control the telescopic end (210) to move upward and place the intermediate tube (800) on the end of the head tube (300), so that the water pipe (500) is located inside the intermediate tube (800); fix the connection mechanism (400) between the telescopic end (210) and the intermediate tube (800); then continue to control the telescopic end (210) to press down and insert the intermediate tube (800) into the hole, and so on, inserting multiple intermediate tubes (800) in a cycle; and finally insert the tail tube (900); S3. After reaching the designated position, pull the water pipe (500) to open the two arc-shaped blocks (610), and the water hole (540) is located below the head insertion tube (300). Then, water sampling is performed. After the sampling is completed, release the water pipe (500) to automatically reset and wait for the next sampling. S4. When disassembly is required, simply pull up in reverse order to disassemble.

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