Hydrogeological survey water source sampling detection device

Abstract

The invention relates to the technical field of hydrogeology, and discloses a hydrogeological survey water source sampling detection device, one side of the surface of a control box main body is fixedly connected with a servo motor, and the position, far away from the servo motor, of one side of the top of the control box main body is movably connected with a control shaft bracket; a telescopic support is arranged on the other side of the control box body, a connecting rope is movably connected to the surface of the control shaft bracket, a filtering sampling box is fixedly connected to the end, away from the control shaft bracket, of the connecting rope, and a limiting ring is arranged on the side, close to the connecting rope, of the top of the control box body; by arranging the telescopic support and the filtering and sampling box, the filtering and sampling box can be close to the top of a water source through the telescopic support when sampling is carried out at a special terrain position which is inconvenient to be close to the water source, so that the filtering and sampling box can be used for sampling the water source conveniently; impurities such as aquatic plants on the surface of the sampled water source are filtered through the filtering and sampling box.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogeology, and more specifically to a water source sampling and detection device for hydrogeological survey. Background Art

[0002] Hydrogeological survey refers to a series of geological survey activities carried out to understand and evaluate the distribution, flow, quality and utilization potential of groundwater resources, as well as the relationship between groundwater and geological conditions. Its main purpose is to collect and analyze relevant data of groundwater systems through geological, hydrological and hydrogeological methods, and to provide scientific basis and technical support for the development, management and protection of groundwater resources. In hydrogeological survey, water sources are often sampled. During the survey, staff generally use water source sampling and testing devices to sample water sources, and then select representative water source samples to test the water sources in the testing room.

[0003] The currently available sampling and detection devices need to lower the sampling container to a certain depth before sampling when performing water source sampling operations. However, this method can only sample water sources at a specific depth each time. This sampling process will result in a single sample of water source sampling and low sampling efficiency. In addition, during the sampling process, impurities such as aquatic plants floating on the surface of some water sources may enter, causing the samples to be contaminated and affecting the data information of subsequent sample detection, which is very inconvenient. In addition, the existing sampling and detection devices need to be manually carried to a location close to the water source for operation, but there are great difficulties in sampling water sources with complex terrain that are difficult for people to approach. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the implementation regulations of the present invention provide a water source sampling and detection device for hydrogeological survey to solve the technical problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A water source sampling and detection device for hydrogeological survey, comprising a control box body, characterized in that: a servo motor is fixedly connected to one side of the surface of the control box body, a control shaft frame is movably connected to one side of the top of the control box body and away from the servo motor, a telescopic bracket is provided at the other side of the control box body, a connecting rope is movably connected to the surface of the control shaft frame, a filter sampling box is fixedly connected to one end of the connecting rope away from the control shaft frame, a limiting ring is provided at one side of the top of the control box body close to the connecting rope, an air bag is movably connected inside the limiting ring, an air pipeline is fixedly connected to one end of the air bag, and an end of the air pipeline away from the air bag is fixedly connected to the surface of the filter sampling box near the bottom, and by providing a telescopic bracket and a filter sampling box, it is beneficial to sample at a special terrain position where it is not convenient to be close to the water source, so that the filter sampling box is close to the top of the water source through the telescopic bracket, and the impurities such as water plants on the surface of the sampled water source are filtered through the filter sampling box, so that the collected water source is cleaner and the subsequent data detection of the water source sample is more accurate.

[0006] In a preferred embodiment, the servo motor is located inside the control box body and is connected to a transmission shaft. The end of the transmission shaft away from the servo motor is fixedly connected to a transmission gear. The transmission gear is located at the bottom of the telescopic bracket. By providing a servo motor, a transmission shaft and a transmission gear, it is beneficial to drive the transmission shaft to rotate through the servo motor when it is impossible to approach the water source for sampling due to special terrain, so that the transmission gear drives the telescopic bracket to extend and retract, so that the filter sampling box is close to the top of the sampling water source, thereby increasing convenience in actual use.

[0007] In a preferred embodiment, a mutual groove is opened at the top of the control box body at the position of the movable connection control shaft frame, and circular through holes are opened on both sides of the inner wall of the mutual groove. A bracket groove is opened at the top of the control box body at the position of the telescopic bracket. A transmission groove is opened at the control box body at the position of the fixed connection to the servo motor, and a gear groove is opened at the bottom of the bracket groove near the transmission groove. By providing the gear groove and the bracket groove, it is beneficial for the transmission gear inside the gear groove to transmit the telescopic bracket inside the bracket groove, so that the telescopic bracket is driven to complete the extension and retraction.

[0008] In a preferred embodiment, a rocker is fixedly connected to one side of the control shaft frame surface, and an anti-slip handle is provided on the surface of the rocker. The provision of the rocker and the anti-slip handle helps to prevent the anti-slip handle from slipping when holding, and the anti-slip grip drives the rocker to operate, so that the connecting rope on the surface of the control shaft frame can be retracted and released.

[0009] In a preferred embodiment, a first auxiliary limit block is provided on one side of the top of the telescopic bracket, a telescopic inner tube is movably sleeved inside the first auxiliary limit block, a second auxiliary limit block is provided on the surface of the telescopic inner tube and on one side away from the telescopic bracket, and neatly arranged meshing teeth are provided on the bottom surface of the telescopic inner tube. The telescopic bracket is provided to facilitate sampling of water sources in locations where it is inconvenient for personnel to approach in special terrains. The servo motor drives the transmission shaft to rotate, so that the transmission shaft drives the transmission gear, and then the meshing teeth drive the telescopic inner tube to extend and retract, so that the filter sampling box is driven close to the top of the water source, and the rotation of the control shaft frame is controlled to allow the filter sampling box to enter the water source to complete sampling, thereby reducing the difficulty of sampling.

[0010] In a preferred embodiment, the surface of the filter sampling box is provided with neatly arranged filter holes, the surface of the filter sampling box is provided with threads near the bottom, the surface of the filter sampling box is movably sleeved with a sample storage box near the threads, and the surface of the sample storage box is movably sleeved with a weighted conical sleeve near the bottom. By providing the filter sampling box and the filter holes, it is beneficial to block impurities such as aquatic plants on the surface of the collected water source through the filter holes opened on the surface of the filter sampling box during water source sampling, thereby making the collected water source sample cleaner, thereby ensuring the accuracy of subsequent data detection of the water source sample.

[0011] In a preferred embodiment, a sample storage cavity is provided inside the sample storage box, a water meter sampling box is fixedly connected inside the sample storage cavity and near the top position, a conical sample storage cavity is provided inside the water meter sampling box, a sealing float is movably connected to the bottom position of the conical sample storage cavity, a water inlet hole is provided on one side of the surface of the sample storage box near the bottom position, and a ventilation plug is movably sleeved on the surface of the sample storage box at the top position of the opened water inlet hole. By providing a filtering sampling box, a sample storage box, a weighted conical sleeve, a pull rope, a water pumping plug, an auxiliary rope, and a water meter sampling box, it is beneficial to collect water samples from the surface of the water source and enter the water meter sampling box through the filtering sampling box when sampling the water source, and drive the pull rope and the auxiliary rope to operate through the weighted conical sleeve, so that the water pumping plug can collect water samples from the bottom of the water source while collecting water samples on the surface of the water source, thereby increasing the collection of water source samples and improving the efficiency of water source sampling.

[0012] In a preferred embodiment, the water meter sampling box is fixedly connected to a cylindrical rod at the bottom position, a pull rope is movably sleeved inside the cylindrical rod, auxiliary ropes are provided at both sides of the top of the pull rope, and a water pumping plug is fixedly connected to the end of the auxiliary rope away from the pull rope, the water pumping plug is movably sleeved on the surface of the cylindrical rod, a sleeve groove is provided at the top position of the weighted conical sleeve, and the bottom end of the pull rope is fixedly connected to the bottom position of the sleeve groove. By providing a filtering sampling box, a sample storage box, a weighted conical sleeve, a pull rope, a water pumping plug, an auxiliary rope, and a water meter sampling box, it is beneficial to collect water samples from the surface of the water source through the filtering sampling box and enter the inside of the water meter sampling box when sampling the water source, and drive the pull rope and the auxiliary rope to run through the weighted conical sleeve, so that the water pumping plug can collect water samples from the bottom of the water source while collecting water samples on the surface of the water source, thereby increasing the collection of water source samples and improving the efficiency of water source sampling.

[0013] Technical effects and advantages of the present invention: 1. The present invention is provided with a filtering sampling box, a sample storage box, a weighted conical sleeve, a pull rope, a water pumping plug, an auxiliary rope, and a water meter sampling box, which is conducive to collecting water samples on the surface of the water source through the filtering sampling box and entering the inside of the water meter sampling box when sampling a water source, and the pull rope and the auxiliary rope are driven by the weighted conical sleeve to operate, so that the water pumping plug can collect water samples on the surface of the water source while collecting water samples at the bottom of the water source, thereby increasing the collection of water source samples and improving the efficiency of water source sampling; 2. The present invention is provided with a filter sampling box and a filter hole, which is beneficial for blocking impurities such as water plants on the surface of the collected water source through the filter holes opened on the surface of the filter sampling box during water source sampling, thereby making the collected water source sample cleaner, thereby ensuring the accuracy of subsequent data detection of the water source sample; 3. The present invention is provided with a telescopic bracket, a telescopic inner tube, meshing teeth, a transmission gear, a servo motor, and a transmission shaft, which is convenient for sampling water sources in special terrains where it is inconvenient for personnel to approach. The servo motor drives the transmission shaft to rotate, so that the transmission shaft drives the transmission gear, and then the meshing teeth drive the telescopic inner tube to extend and retract, so that the filter sampling box is driven close to the top of the water source, and the rotation of the control shaft frame allows the filter sampling box to enter the water source to complete the sampling, thereby reducing the difficulty of sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention.

[0016] Figure 3 It is a schematic cross-sectional view of the main structure of the control box of the present invention.

[0017] Figure 4 It is a schematic diagram of the control shaft frame structure of the present invention.

[0018] Figure 5 It is a schematic cross-sectional view of the telescopic support structure of the present invention.

[0019] Figure 6 It is a schematic exploded view of the structure of the filtering sampling box of the present invention.

[0020] Figure 7 It is a schematic cross-sectional view of the structure of the filtering sampling box of the present invention.

[0021] The reference numerals are: 1. control box body; 101. mutual groove; 102. circular through hole; 103. bracket groove; 104. gear groove; 105. transmission groove; 2. servo motor; 201. transmission shaft; 3. control shaft frame; 301. rocker; 302. non-slip grip; 4. telescopic bracket; 401. first auxiliary limit block; 402. telescopic inner tube; 403. second auxiliary limit block; 404. meshing teeth; 5. connecting rope; 6. Filter sampling box; 601. Filter hole; 602. Sample storage box; 603. Weighted conical sleeve; 604. Sample storage cavity; 605. Water inlet hole; 606. Socket groove; 7. Limiting ring; 8. Air bag; 9. Gas pipeline; 10. Transmission gear; 11. Water meter sampling box; 1101. Conical sample storage cavity; 12. Sealing float; 13. Cylindrical rod; 14. Pull rope; 15. Auxiliary rope; 16. Ventilation plug; 17. Drain plug. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The hydrogeological survey water source sampling and detection device involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0023] Reference Figure 1As shown, the present invention provides a water source sampling and detection device for hydrogeological survey, including a control box body 1, characterized in that: a servo motor 2 is fixedly connected to one side of the surface of the control box body 1, a control shaft frame 3 is movably connected to one side of the top of the control box body 1 and away from the servo motor 2, a telescopic bracket 4 is provided on the other side of the control box body 1, a connecting rope 5 is movably connected to the surface of the control shaft frame 3, a filter sampling box 6 is fixedly connected to one end of the connecting rope 5 away from the control shaft frame 3, a limiting ring 7 is provided on one side of the top of the control box body 1 close to the connecting rope 5, an air bag 8 is movably connected inside the limiting ring 7, one end of the air bag 8 is fixedly connected to a gas pipeline 9, and one end of the gas pipeline 9 away from the air bag 8 is fixedly connected to the surface of the filter sampling box 6 near the bottom.

[0024] In the present embodiment: by providing a telescopic bracket 4 and a filter sampling box 6, it is convenient to perform sampling in a special terrain position where it is inconvenient to approach a water source. The telescopic bracket 4 allows the filter sampling box 6 to be close to the top of the water source, and the filter sampling box 6 is used to filter impurities such as aquatic plants on the surface of the sampled water source, thereby making the collected water source cleaner and making subsequent data detection of the water source sample more accurate.

[0025] Reference Figure 2 As shown, the servo motor 2 is located inside the control box body 1 and is transmission-connected to a transmission shaft 201 . One end of the transmission shaft 201 away from the servo motor 2 is fixedly connected to a transmission gear 10 . The transmission gear 10 is located at the bottom of the telescopic bracket 4 .

[0026] In the present embodiment, by providing a servo motor 2, a transmission shaft 201 and a transmission gear 10, when it is impossible to approach a water source for sampling due to special terrain, the servo motor 2 drives the transmission shaft 201 to rotate, thereby allowing the transmission gear 10 to drive the telescopic bracket 4 to be extended and retracted, so that the filter sampling box 6 is close to the top of the sampling water source, thereby increasing convenience in actual use.

[0027] Reference Figure 3 As shown, a mutual groove 101 is opened on the top of the control box body 1 at the position where the control shaft frame 3 is movably connected, and circular through holes 102 are opened on both sides of the inner wall of the mutual groove 101, a bracket groove 103 is opened on the top of the control box body 1 at the position where the telescopic bracket 4 is opened, a transmission groove 105 is opened on the control box body 1 at the position where the servo motor 2 is fixedly connected, and a gear groove 104 is opened at the bottom of the bracket groove 103 near the transmission groove 105.

[0028] In this embodiment, the gear groove 104 and the bracket groove 103 are provided to facilitate transmission between the transmission gear 10 in the gear groove 104 and the telescopic bracket 4 in the bracket groove 103 , so that the telescopic bracket 4 is driven to complete telescoping.

[0029] Reference Figure 4 As shown, a rocker 301 is fixedly connected to one side of the surface of the control shaft frame 3 , and a non-slip handle 302 is provided on the surface of the rocker 301 .

[0030] In this embodiment: by providing a rocker 301 and an anti-skid handle 302, it is helpful to prevent the anti-skid handle 302 from slipping when holding, and the anti-skid handle 302 drives the rocker 301 to operate, so as to control the connection rope 5 on the surface of the shaft frame 3 to be retracted and released.

[0031] Reference Figure 5 As shown, a first auxiliary limit block 401 is provided on one side of the top of the telescopic bracket 4, a telescopic inner tube 402 is movably sleeved inside the first auxiliary limit block 401, a second auxiliary limit block 403 is provided on the surface of the telescopic inner tube 402 and on one side away from the telescopic bracket 4, and neatly arranged meshing teeth 404 are provided on the bottom surface of the telescopic inner tube 402.

[0032] In the present embodiment: by providing a telescopic bracket 4, it is convenient to sample water sources in special terrain where it is inconvenient for personnel to approach; the servo motor 2 drives the transmission shaft 201 to rotate, so that the transmission shaft 201 drives the transmission gear 10, and then the meshing teeth 404 drive the telescopic inner tube 402 to extend and retract, so that the filter sampling box 6 is driven close to the top position of the water source, and the rotation of the control shaft bracket 3 is controlled to allow the filter sampling box 6 to enter the water source to complete the sampling, thereby reducing the difficulty of sampling.

[0033] Reference Figure 6-Figure 7 As shown, the surface of the filter sampling box 6 is provided with neatly arranged filter holes 601, the surface of the filter sampling box 6 is provided with threads near the bottom, the surface of the filter sampling box 6 is movably connected to a sample storage box 602 near the threads, and the surface of the sample storage box 602 is movably connected to a weighted conical sleeve 603 near the bottom.

[0034] In the present embodiment: by providing a filter sampling box 6 and a filter hole 601, it is advantageous when sampling water sources, because the filter holes 601 opened on the surface of the filter sampling box 6 can block impurities such as aquatic plants on the surface of the collected water source, thereby making the collected water source sample cleaner, thereby ensuring the accuracy of subsequent data detection of the water source sample.

[0035] Reference Figure 6-Figure 7 As shown, a sample storage cavity 604 is opened inside the sample storage box 602, a water meter sampling box 11 is fixedly connected inside the sample storage cavity 604 and near the top position, a conical sample storage cavity 1101 is opened inside the water meter sampling box 11, a blocking float 12 is movably connected to the bottom position of the conical sample storage cavity 1101, a water inlet hole 605 is opened on one side of the surface of the sample storage box 602 near the bottom position, and a ventilation plug 16 is movably connected to the top position of the water inlet hole 605 opened on the surface of the sample storage box 602.

[0036] In the present embodiment, by providing a filtering sampling box 6, a sample storage box 602, a weighted conical sleeve 603, a pull rope 14, a water pumping plug 17, an auxiliary rope 15, and a water meter sampling box 11, it is advantageous to collect water samples from the surface of the water source through the filtering sampling box 6 and bring them into the water meter sampling box 11 during water source sampling, and drive the pull rope 14 and the auxiliary rope 15 to operate through the weighted conical sleeve 603, so that the water pumping plug 17 can collect water samples from the bottom of the water source while collecting water samples from the surface of the water source, thereby increasing the collection of water source samples and improving the efficiency of water source sampling.

[0037] Reference Figure 7 As shown, a cylindrical rod 13 is fixedly connected to the bottom of the water meter sampling box 11, a pull rope 14 is movably sleeved inside the cylindrical rod 13, auxiliary ropes 15 are provided on both sides of the top of the pull rope 14, and a water pumping plug 17 is fixedly connected to the end of the auxiliary rope 15 away from the pull rope 14. The water pumping plug 17 is movably sleeved on the surface of the cylindrical rod 13, a sleeve groove 606 is provided at the top of the weighted conical sleeve 603, and the bottom end of the pull rope 14 is fixedly connected to the bottom of the sleeve groove 606.

[0038] In the present embodiment, by providing a filtering sampling box 6, a sample storage box 602, a weighted conical sleeve 603, a pull rope 14, a water pumping plug 17, an auxiliary rope 15, and a water meter sampling box 11, it is advantageous to collect water samples from the surface of the water source through the filtering sampling box 6 and bring them into the water meter sampling box 11 during water source sampling, and drive the pull rope 14 and the auxiliary rope 15 to operate through the weighted conical sleeve 603, so that the water pumping plug 17 can collect water samples from the bottom of the water source while collecting water samples from the surface of the water source, thereby increasing the collection of water source samples and improving the efficiency of water source sampling.

[0039] The working principle of the present invention is as follows: first, when in use, the control box body 1 is placed near the water source to be used, and then the servo motor 2 is turned on according to the position of the water source, so that the servo motor 2 drives the transmission shaft 201 to rotate, and then the rotation of the transmission shaft 201 drives the transmission gear 10 to rotate, so that the transmission gear 10 rotates inside the gear groove 104. At this time, the rotation of the transmission gear 10 drives the meshing teeth 404 at the bottom of the telescopic inner tube 402. At this time, the meshing teeth 404 drive the telescopic inner tube 402 to be telescoped inside the telescopic bracket 4. At this time, the telescopic inner tube 402 is telescoped so that the connecting rope 5 is driven under the restriction of the first auxiliary limit block 401 and the second auxiliary limit block 403, and then in the filter sampling box. 6 reaches the top position of the water source, at this time, hold the non-slip grip 302 and turn the rocker 301, so that the rocker 301 drives the control shaft frame 3 to rotate inside the mutual groove 101, and at this time, the rotation of the control shaft frame 3 causes the connecting rope 5 to be driven by the weight of the filter sampling box 6 to drop vertically, and at this time, the filter sampling box 6 gradually approaches the water source position, and then when the filter sampling box 6 enters the water source, the filter holes 601 on the surface of the filter sampling box 6 filter the impurities such as water plants on the surface of the water source, and then the filtered water source sample enters the conical sample storage cavity 1101 opened in the water meter sampling box 11, so that the blocking float 12 inside the conical sample storage cavity 1101 floats due to the entry of the water source, and in the conical sample storage cavity 1 After the internal sample collection of 101 is completed, the blocking float 12 blocks the conical sample storage chamber 1101, so that there is no water source in the conical sample storage chamber 1101, and then squeezes the air bag 8 restricted by the limit ring 7 on the top of the control box body 1, so that the gas inside the air bag 8 enters the gas pipeline 9, and the gas enters the socket groove 606 on the top of the weighted conical sleeve 603 through the gas pipeline 9. Then, the pressure in the socket groove 606 increases due to the entry of gas, so that the weighted conical sleeve 603 is separated from the sample box 602. At this time, the weighted conical sleeve 603 drives the pull rope 14 into the water due to its own weight, so that the pull rope 14 drives the auxiliary rope 15 to pull the water pump 17. At this time, the pulling force of the water pump 17 The water source is sucked into the sample storage cavity 604 by the water inlet hole 605, and then the control shaft frame 3 is rotated in the opposite direction to drive the filter sampling box 6 to rise, and then the servo motor 2 is turned on to restore the telescopic bracket 4. At this time, the filter sampling box 6 is picked up, and the sample storage box 602 is rotated to separate the sample storage box 602 from the filter sampling box 6, and then the sample storage box 602 is tilted to pour out the water source inside the conical sample storage cavity 1101 for detection, and then when it is necessary to take out the water source inside the sample storage cavity 604, the ventilation plug 16 is pulled to separate the ventilation plug 16 from the sample storage box 602, and now the water source inside the sample storage cavity 604 can be taken out and tested through the water inlet hole 605.

[0040] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water source sampling and detection device for hydrogeological survey, comprising a control box body (1), characterized in that: A servo motor (2) is fixedly connected to one side of the surface of the control box body (1); a control shaft frame (3) is movably connected to one side of the top of the control box body (1) and at a position away from the servo motor (2); a telescopic bracket (4) is provided at the other side of the control box body (1); a connecting rope (5) is movably connected to the surface of the control shaft frame (3); an end of the connecting rope (5) away from the control shaft frame (3) is fixedly connected to a filter sampling box (6); a limit ring (7) is provided at a side of the top of the control box body (1) close to the connecting rope (5); an air bag (8) is movably connected inside the limit ring (7); one end of the air bag (8) is fixedly connected to a gas pipeline (9); and one end of the gas pipeline (9) away from the air bag (8) is fixedly connected to a surface of the filter sampling box (6) close to the bottom.

2. A water source sampling and detection device for hydrogeological survey according to claim 1, characterized in that: The servo motor (2) is located inside the control box body (1) and is transmission-connected to a transmission shaft (201); one end of the transmission shaft (201) away from the servo motor (2) is fixedly connected to a transmission gear (10); and the transmission gear (10) is located at the bottom of the telescopic bracket (4).

3. A water source sampling and detection device for hydrogeological survey according to claim 1, characterized in that: The top of the control box body (1) is provided with a mutual groove (101) at a position where the control shaft frame (3) is movably connected, and circular through holes (102) are provided on both sides of the inner wall of the mutual groove (101). The top of the control box body (1) is provided with a bracket groove (103) at a position where the telescopic bracket (4) is provided, and the control box body (1) is provided with a transmission groove (105) at a position where the servo motor (2) is fixedly connected, and a gear groove (104) is provided at the bottom of the bracket groove (103) near the transmission groove (105).

4. A water source sampling and detection device for hydrogeological survey according to claim 1, characterized in that: A rocker (301) is fixedly connected to one side of the surface of the control shaft frame (3), and a non-slip grip (302) is provided on the surface of the rocker (301).

5. The water source sampling and detection device for hydrogeological survey according to claim 1, characterized in that: A first auxiliary limit block (401) is provided at one side of the top of the telescopic bracket (4), a telescopic inner tube (402) is movably sleeved inside the first auxiliary limit block (401), a second auxiliary limit block (403) is provided on the surface of the telescopic inner tube (402) at a side away from the telescopic bracket (4), and neatly arranged meshing teeth (404) are provided at the bottom surface of the telescopic inner tube (402).

6. A water source sampling and detection device for hydrogeological survey according to claim 1, characterized in that: The surface of the filter sampling box (6) is provided with neatly arranged filter holes (601), the surface of the filter sampling box (6) is provided with threads near the bottom, the surface of the filter sampling box (6) is movably sleeved with a sample storage box (602) near the threads, and the surface of the sample storage box (602) is movably sleeved with a weighted conical sleeve (603) near the bottom.

7. A water source sampling and detection device for hydrogeological survey according to claim 6, characterized in that: The sample storage box (602) has a sample storage cavity (604) formed inside, a water meter sampling box (11) is fixedly connected inside the sample storage cavity (604) and near the top, a conical sample storage cavity (1101) is formed inside the water meter sampling box (11), a sealing float (12) is movably connected to the bottom of the conical sample storage cavity (1101), a water inlet hole (605) is formed on one side of the surface of the sample storage box (602) near the bottom, and a ventilation plug (16) is movably sleeved on the top of the water inlet hole (605) formed on the surface of the sample storage box (602).

8. A water source sampling and detection device for hydrogeological survey according to claim 7, characterized in that: The bottom position of the water meter sampling box (11) is fixedly connected to a cylindrical rod (13), a pull rope (14) is movably sleeved inside the cylindrical rod (13), auxiliary ropes (15) are provided at both sides of the top of the pull rope (14), and one end of the auxiliary rope (15) away from the pull rope (14) is fixedly connected to a water pumping plug (17), and the water pumping plug (17) is movably sleeved on the surface of the cylindrical rod (13), and a sleeve groove (606) is provided at the top position of the weighted conical sleeve (603), and the bottom end of the pull rope (14) is fixedly connected to the bottom position of the sleeve groove (606).

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