A drilling device for hydrogeological exploration

Abstract

The present invention relates to the technical field of drilling sampling, and particularly relates to a drilling device for hydrogeological exploration. It includes an isolation cover, the isolation cover is provided with uniformly distributed through holes, a first fixed seat is fixedly connected inside the isolation cover, a first driving member is arranged on the first fixed seat, a telescopic end of the first driving member is fixedly connected with a first U-shaped frame, the first U-shaped frame is fixedly connected with a protective shell, a second driving member is arranged inside the protective shell, a driving shaft of the second driving member is fixedly connected with a drill barrel, uniformly distributed second fixed seats are fixedly connected to the outside of the isolation cover, and the second fixed seats are fixedly connected with first fixing frames. When the drilling device reaches the drilling area, the collecting member moves into the silt, and by utilizing the characteristics of the geotextile dewatering bag, the excess water is filtered out during the movement, and at the same time, the amount of silt in the collecting member is increased. This silt is used as additional counterweight to help the drilling device maintain stability during the drilling process, so as to improve the drilling accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling sampling, and particularly to a drilling device for hydrogeological exploration. Background Art

[0002] Hydrogeological exploration is a scientific method for studying groundwater resources and their related geological conditions, aiming to obtain information such as the distribution, structure, water quality, and water volume of underground aquifers through a series of techniques and means. Hydrogeological exploration usually includes various technical means such as surface investigation and drilling.

[0003] In hydrogeological exploration, drilling is an indispensable technical means, especially when studying river bottom silt and rock formations, and its importance is particularly prominent. The following are the specific reasons:

[0004] 1. Obtaining direct samples: Drilling can directly extract samples from river bottom silt and rock formations for analyzing their physical properties (such as particle size, density), chemical compositions (such as pollutant content), and mechanical properties (such as compressive strength). These data are crucial for evaluating riverbed stability, predicting geological disasters, and planning water conservancy projects.

[0005] 2. Revealing deep geological structures: River bottom sediments often consist of multiple layers of silt and rock formations with different properties. It is difficult to accurately judge the deep geological structure only by surface observation or geophysical exploration. Drilling can penetrate each layer of sediment and provide detailed stratification information to help understand the formation history and evolution process of the riverbed.

[0006] However, the existing drilling devices still face some challenges in practical applications. For example, during the drilling process, since the drill pipe needs to penetrate into the rock formation or silt, the drilling device will be subjected to the reaction force (i.e., "repulsive force") of the rock formation or silt. This force will cause the drilling device to move away from the drilling direction, thus affecting the stability of the device. Once the device tilts or displaces, it will directly cause the drilling trajectory to deviate from the predetermined target, thereby significantly reducing the drilling accuracy. This not only increases the difficulty of drilling work but also affects the subsequent geological analysis. Summary of the Invention

[0007] To solve the problems mentioned in the above background art, the present invention provides a drilling device for hydrogeological exploration.

[0008] The technical solution of the present invention is as follows: A drilling device for hydrogeological exploration, comprising: an isolation cover, the isolation cover is provided with uniformly distributed through holes, a first fixing seat is fixedly connected inside the isolation cover, a first driving member is arranged on the first fixing seat, a telescopic end of the first driving member is fixedly connected with a first U-shaped frame, the first U-shaped frame is fixedly connected with a protective shell, a second driving member is arranged inside the protective shell, a driving shaft of the second driving member is fixedly connected with a drill pipe, the outside of the isolation cover is fixedly connected with uniformly distributed second fixing seats, the second fixing seats are fixedly connected with first fixing frames, a collecting member is arranged on the first fixing frames, a fixing component for fixing the collecting member to the first fixing frames is arranged on the first fixing frames, an expanding component for expanding the collecting member is arranged on the first fixing frames, and a driving component is arranged on the isolation cover.

[0009] Preferably, symmetric baffles are connected to the first fixing frame in a limited rotation manner, a torsion spring is fixedly connected between the baffles and the first fixing frame, and two inclined surfaces are arranged on the lower side of the first fixing frame.

[0010] Preferably, the fixing component includes a first T-shaped frame, a second U-shaped frame, a traction frame and a sliding groove, the first T-shaped frame is fixedly connected with the first fixing frame, the second U-shaped frame is slidably connected with the first T-shaped frame, a side of the second U-shaped frame close to the second fixing seat passes through the collecting member and is fixedly connected thereto, the traction frame is fixedly connected with a side of the collecting member close to the adjacent first T-shaped frame, the sliding groove is arranged on the first fixing frame, and the traction frame is slidably limited along the sliding groove.

[0011] Preferably, a side of the collecting member and the adjacent traction frame facing the adjacent first T-shaped frame are both inclined.

[0012] Preferably, the expanding component includes a second T-shaped frame, a second fixing frame, a sliding frame, an L-shaped frame and an elastic telescopic frame, the second T-shaped frame is fixedly connected with a side of the adjacent first fixing frame away from the second fixing seat, the second fixing frame is fixedly connected between the second T-shaped frame and the isolation cover, the sliding frame slides along the second fixing frame, the L-shaped frame slides along the sliding frame, the elastic telescopic frame is fixedly connected with the second T-shaped frame, a telescopic end of the elastic telescopic frame passes through the L-shaped frame and is fixedly connected with the sliding frame, the L-shaped frame slides along the telescopic end of the elastic telescopic frame, and an upper side of the traction frame is slidably connected with the L-shaped frame in a limited manner.

[0013] Preferably, the sliding groove is composed of a rectangular groove and a trapezoidal groove.

[0014] Preferably, the driving assembly includes a third fixing seat, a sliding frame and a towing rope. The sliding frame slides along the outer side of the isolation cover. A plurality of the sliding frames are evenly arranged circumferentially along the isolation cover. The upper sides of all the sliding frames are fixedly connected to the third fixing seat. The third fixing seat is located above the isolation cover. The towing rope moves along the second fixing frame and the second T-shaped frame and is fixedly connected to the sliding frame.

[0015] Preferably, a first elastic telescopic rod is fixedly connected between the sliding frame and the L-shaped frame. The sliding frame is hinged with a second elastic telescopic rod. The telescopic end of the second elastic telescopic rod is hinged with the towing frame. A first spring pin is fixedly connected to one side of the L-shaped frame close to the adjacent towing frame. When the telescopic end of the first spring pin is inserted into the second U-shaped frame, the first spring pin is used to limit the second U-shaped frame. A second spring pin for limiting the second U-shaped frame is fixedly connected in the first T-shaped frame.

[0016] Preferably, the supporting force provided by the second elastic telescopic rod to the towing frame is greater than the supporting force provided by the elastic telescopic frame to the L-shaped frame.

[0017] Preferably, a limiting frame is fixedly connected to the L-shaped frame. The limiting frame is used to limit the symmetrical baffles. The baffles are provided with notches.

[0018] The beneficial effects of the present invention are as follows: When the drilling equipment reaches the drilling area, the collecting member moves into the silt, and by utilizing the characteristics of the geotechnical dewatering bag, the excess water is filtered out during the movement process, and at the same time, the amount of silt in the collecting member is increased. This silt is used as additional counterweight to help the drilling equipment maintain stability during the drilling process, so as to improve the drilling accuracy.

[0019] During the process of drilling in the sampling area, by placing the second driving member and the drill barrel in the isolation cover through the protective shell, the interference of the external environment on the drill barrel is reduced, thereby improving the stability of the drill barrel during the drilling process. And when there is a "repulsive force" when the drill barrel is drilling, since all the baffles and the adjacent first fixing frames are in a V shape, and in cooperation with the gravity provided by the collecting member and the silt therein, the degree of influence of the isolation cover by the "repulsive force" is reduced, and the resistance to the upward movement of the isolation cover is increased, thereby ensuring the stability of the drilling process.

[0020] When the sampling task is completed, the collecting member is contracted, and the silt inside it is squeezed out again during the contraction process, reducing the overall weight of the collecting member. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2Isometric structure bottom view of the present invention;

[0023] Figure 3 Isometric structure schematic diagram of the first fixing seat of the present invention;

[0024] Figure 4 Isometric structure sectional view of the isolation cover of the present invention;

[0025] Figure 5 Isometric structure exploded view of the components at the protective shell of the present invention;

[0026] Figure 6 Isometric structure schematic diagram of the components at the collection part of the present invention;

[0027] Figure 7 Isometric structure sectional view of the first fixing frame of the present invention;

[0028] Figure 8 Isometric structure sectional view of the first fixing frame from another perspective of the present invention;

[0029] Figure 9 Isometric structure schematic diagram of the positional relationship between the traction frame and the sliding groove of the present invention;

[0030] Figure 10 Isometric structure sectional view of the collection part of the present invention;

[0031] Figure 11 Isometric structure sectional view of the first T-shaped frame of the present invention;

[0032] Figure 12 Isometric structure exploded view of the first elastic telescopic rod and the second elastic telescopic rod of the present invention.

[0033] Marks in the attached drawings: 1 - isolation cover, 2 - first fixing seat, 3 - first driving member, 4 - first U-shaped frame, 5 - protective shell, 6 - second driving member, 7 - drill barrel, 8 - second fixing seat, 9 - first fixing frame, 10 - collection part, 11 - baffle, 12 - first T-shaped frame, 13 - second U-shaped frame, 14 - traction frame, 15 - sliding groove, 16 - second T-shaped frame, 17 - second fixing frame, 18 - sliding frame, 19 - L-shaped frame, 20 - elastic telescopic frame, 21 - third fixing seat, 22 - sliding rack, 23 - traction rope, 24 - first elastic telescopic rod, 25 - second elastic telescopic rod, 26 - first spring pin, 27 - second spring pin, 28 - limiting frame. Detailed implementation manners

[0034] The following is only a preferred embodiment of the present invention and does not limit the protection scope of the present invention accordingly.

[0035] Embodiment 1: A drilling device for hydrogeological exploration, such as Figures 1-7As shown in the figure, it includes: an isolation cover 1, the isolation cover 1 is provided with uniformly distributed through holes for reducing the resistance of the isolation cover 1 moving in water. A first fixed seat 2 is fixedly connected inside the isolation cover 1. The first fixed seat 2 is provided with a first driving member 3, and the first driving member 3 can be an electric push rod or a hydraulic push rod. The telescopic end of the first driving member 3 is fixedly connected with a first U-shaped frame 4. The first U-shaped frame 4 is fixedly connected with a protective shell 5. The protective shell 5 is composed of two semi-circular shells. The two semi-circular shells are sealed by a sealing strip and connected by screws. A second driving member 6 is arranged inside the protective shell 5. The second driving member 6 is a single-axis driving motor. The driving shaft of the second driving member 6 is fixedly connected with a drilling cylinder 7. The outer side of the isolation cover 1 is fixedly connected with uniformly distributed second fixed seats 8. The second fixed seats 8 are fixedly connected with a first fixing frame 9. The first fixing frame 9 is provided with a collecting member 10. A fixing component for fixing the collecting member 10 to the first fixing frame 9 is arranged on the first fixing frame 9. An expanding component for expanding the collecting member 10 is arranged on the first fixing frame 9. A driving component is arranged on the isolation cover. When sampling is required, the telescopic end of the first driving member 3 extends out, and in cooperation with the rotation of the driving shaft of the second driving member 6, the drilling cylinder 7 drills into the sampling area while rotating. The collecting member 10 is a geotechnical dewatering bag for temporarily storing the silt to provide temporary counterweight for the isolation cover 1. The collecting member 10 is located above the first fixing frame 9. When drilling is not required, the collecting member 10 is in a contracted state.

[0036] As Figure 3 and Figure 6 shown, symmetric baffles 11 are connected to the first fixing frame 9 in a limited rotation manner. A torsion spring is fixedly connected between the baffles 11 and the first fixing frame 9. Two inclined surfaces are arranged on the lower side of the first fixing frame 9. The number of baffles 11 on the first fixing frame 9 is two. The torsion spring on the first fixing frame 9 is used to drive the baffles 11 to reset and make the adjacent two baffles 11 initially in a V shape to reduce the resistance when the collecting member 10 moves downward.

[0037] As Figures 6-9As shown in the figure, the fixing component includes a first T-shaped frame 12, a second U-shaped frame 13, a traction frame 14, and a sliding groove 15. The first T-shaped frame 12 is fixedly connected to the first fixing frame 9. The collecting member 10 is located between the adjacent second fixing seat 8 and the adjacent first T-shaped frame 12. The side of the collecting member 10 close to the isolation cover 1 is made of a rigid material. The second U-shaped frame 13 is slidably connected to the first T-shaped frame 12. The side of the second U-shaped frame 13 close to the second fixing seat 8 passes through the collecting member 10 and is fixedly connected thereto. The side of the second U-shaped frame 13 close to the isolation cover 1 is fixed to the collecting member 10 by screws. This fixing method facilitates the subsequent replacement of the collecting member 10. The traction frame 14 is fixedly connected to the side of the collecting member 10 close to the adjacent first T-shaped frame 12. The traction frame 14 is used to fix the side of the collecting member 10 away from the isolation cover 1. Under the action of the second U-shaped frame 13 fixing the side of the collecting member 10 close to the isolation cover 1, the traction frame 14 stretches the side of the collecting member 10 away from the isolation cover 1, so that the collecting member 10 expands and collects the silt. The sliding groove 15 is arranged on the first fixing frame 9. The traction frame 14 is limited to slide along the sliding groove 15. The side of the collecting member 10 and the adjacent traction frame 14 facing the adjacent first T-shaped frame 12 are both inclined.

[0038] As Figures 6-10 shown, the expansion component includes a second T-shaped frame 16, a second fixing frame 17, a sliding frame 18, an L-shaped frame 19, and an elastic telescopic frame 20. The second T-shaped frame 16 is fixedly connected to the side of the adjacent first fixing frame 9 away from the second fixing seat 8. The first T-shaped frame 12 is located between the adjacent collecting member 10 and the adjacent second T-shaped frame 16. The second fixing frame 17 is fixedly connected between the second T-shaped frame 16 and the isolation cover 1. The sliding frame 18 slides along the second fixing frame 17. The sliding frame 18 is composed of an inverted T-shaped frame and a U-shaped frame, and the two are connected by screws. The L-shaped frame 19 slides along the sliding frame 18. The elastic telescopic frame 20 is fixedly connected to the second T-shaped frame 16. The telescopic end of the elastic telescopic frame 20 passes through the L-shaped frame 19 and is fixedly connected to the sliding frame 18. The elastic telescopic frame 20 is used to drive the sliding frame 18 to move back to its original position. The L-shaped frame 19 slides along the telescopic end of the elastic telescopic frame 20. The upper side of the traction frame 14 is slidably connected to the L-shaped frame 19 in a limited manner. The sliding groove 15 is composed of a rectangular groove and a trapezoidal groove, and is used to enable the traction frame 14 to slide up and down when sliding horizontally along the trapezoidal groove of the sliding groove 15.

[0039] As Figures 1-3 and Figures 6-9As shown in the figure, the driving assembly includes a third fixing seat 21, a sliding frame 22 and a towing rope 23. The sliding frame 22 slides along the outer side of the isolation cover 1. A plurality of sliding frames 22 are evenly arranged circumferentially along the isolation cover 1. The upper sides of all the sliding frames 22 are fixedly connected to the third fixing seat 21. The third fixing seat 21 is located above the isolation cover 1. The towing rope 23 moves along the second fixing frame 17 and the second T-shaped frame 16 and is fixedly connected to the sliding frame 18. When sampling is required, the upper side of the third fixing seat 21 is connected to a winch (the winch is not shown in this device). The towing rope 23 can be a steel wire rope or a waterproof power rope. Pulleys are rotatably connected to one side of the second fixing frame 17 close to the isolation cover 1 and the upper side of the second T-shaped frame 16 for guiding the towing rope 23.

[0040] As Figures 10-12 shown, a first elastic telescopic rod 24 is fixedly connected between the sliding frame 18 and the L-shaped frame 19. The sliding frame 18 is hinged with a second elastic telescopic rod 25. The telescopic end of the second elastic telescopic rod 25 is hinged to the towing frame 14. A first spring pin 26 is fixedly connected to one side of the L-shaped frame 19 close to the adjacent towing frame 14. A first circular hole is provided on the upper side of the second U-shaped frame 13. When the telescopic end of the first spring pin 26 is inserted into the first circular hole on the upper side of the second U-shaped frame 13, the L-shaped frame 19 drives the second U-shaped frame 13 to move synchronously through the first spring pin 26. A second spring pin 27 for limiting the second U-shaped frame 13 is fixedly connected inside the first T-shaped frame 12. A second circular hole is provided inside the second U-shaped frame 13. When the second spring pin 27 is inserted into the second circular hole inside the second U-shaped frame 13, the second spring pin 27 limits the second U-shaped frame 13. The supporting force provided by the second elastic telescopic rod 25 to the towing frame 14 is greater than the supporting force provided by the elastic telescopic frame 20 to the L-shaped frame 19. When no sampling is carried out, the telescopic part of the first elastic telescopic rod 24 is in a contracted state. When the L-shaped frame 19 does not move downward along the sliding frame 18, there is a gap between the telescopic end of the first spring pin 26 and the second U-shaped frame 13. The distance that the L-shaped frame 19 moves downward along the sliding frame 18 is greater than the gap between the telescopic end of the first spring pin 26 and the second U-shaped frame 13 and the depth of the first circular hole on the upper side of the second U-shaped frame 13, so that when the first spring pin 26 is inserted into the first circular hole on the upper side inside the second U-shaped frame 13, the telescopic part of the first spring pin 26 is in a compressed state. In this device, to ensure the stability of limiting the second U-shaped frame 13, two second spring pins 27 can be installed inside the first T-shaped frame 12.

[0041] As Figure 6 and Figure 10As shown, the L-shaped frame 19 is fixedly connected with a limit frame 28. The limit frame 28 is used to limit the symmetrical baffle plates 11. The baffle plates 11 are provided with notches. When the limit frame 28 is located at the notches of the symmetrical baffle plates 11, the symmetrical baffle plates 11 swing along the adjacent first fixing frames 9. At this time, the limit frame 28 does not limit the two adjacent baffle plates 11. When the device is pulled out of the water, there is resistance in the water. Therefore, the two symmetrical baffle plates 11 will swing outwards, switching from a V shape to an inverted V shape, so as to reduce the resistance of the device moving upwards, thereby reducing the load of the winch.

[0042] The working principle is as follows: When it is necessary to sample the silt and rock strata at the bottom of the river (when sampling, the water area of the static area can be selected), the user carries the device and moves it above the water surface where sampling is required. Then, the winch is connected to the upper side of the third fixing seat 21. Finally, the user puts the device into the water. Under the action of gravity, the device moves towards the drilling area (during this process, the pulling rope of the winch is always in a loose state and does not exert a pulling force on the third fixing seat 21). When the isolation cover 1 moves in the water (at this time the winch releases), the water flows through all the through holes on the upper side of the isolation cover 1, so as to reduce the resistance during the movement of the isolation cover 1. During the process of the isolation cover 1 driving its attached parts to move into the water, it gradually falls into the silt (the state of the parts in the isolation cover 1 can be referred to in the appendix Figure 2 ) At this time, through the guidance of all the baffle plates 11 and all the first fixing frames 9 (all the baffle plates 11 and the adjacent first fixing frames 9 are in a V shape, so as to reduce the resistance when the collecting part 10 moves downwards), the isolation cover 1 is inserted into the silt, and all the baffle plates 11 and all the first fixing frames 9 are buried by the silt.

[0043] When the isolation cover 1 cannot move, the lower side of the isolation cover 1 contacts the rock stratum. At this time, the baffle plates 11 and the first fixing frames 9 are both in the silt, and the device has moved to the drilling area. Then, the user controls the winch to pull the third fixing seat 21 upwards through the remote control terminal above the water surface. The third fixing seat 21 drives all the sliding frames 22 to move upwards synchronously. Under the action of gravity, the isolation cover 1 will not move upwards, but will have a relative displacement with all the sliding frames 22.

[0044] During the upward movement of the sliding frame 22, the adjacent traction rope 23 is dragged (subsequent descriptions of the traction rope 23 dragging related parts will take the right traction rope 23 and its related parts as examples). The traction rope 23 drags the sliding frame 18 to the right, causing the sliding frame 18 to drive the L-shaped frame 19 to move to the right through the first elastic telescopic rod 24 (the first spring pin 26 moves synchronously with the L-shaped frame 19). The L-shaped frame 19 drives the traction frame 14 to move to the right through the second elastic telescopic rod 25. During this process, since the supporting force provided by the second elastic telescopic rod 25 to the traction frame 14 is greater than the supporting force provided by the elastic telescopic frame 20 to the L-shaped frame 19, the sliding frame 18 will squeeze the telescopic part of the elastic telescopic frame 20 during movement, causing the telescopic part of the elastic telescopic frame 20 to retract, and the limiting frame 28 limits the two adjacent baffles 11 during movement). During the movement of the traction frame 14, the collecting member 10 is stretched, causing the collecting member 10 to gradually be stretched from the contracted state. And during the stretching process of the collecting member 10, in a manner simulating a shovel shoveling soil, the collecting member 10 and the inclined side of the adjacent traction frame 14 cooperate to jointly shovel the surrounding silt into the collecting member 10, increasing the weight of the collecting member 10 and the isolation cover 1.

[0045] On the premise that the collecting member 10 is a geotextile dewatering bag, using the characteristics of the geotextile dewatering bag, when the right side of the collecting member 10 moves into the silt, the water in the collecting member 10 can be filtered out through the collecting member 10, ensuring the amount of silt collected in the collecting member 10. Through the above actions, the purpose of increasing the counterweight without additional configuration is achieved.

[0046] During the movement of the traction frame 14, it moves from left to right along the rectangular groove of the sliding groove 15. When the traction frame 14 moves along the rectangular groove of the sliding groove 15 into the trapezoidal groove, since the traction frame 14 has just entered the rectangular groove of the sliding groove 15, the first spring pin 26 fails to insert into the first round hole on the upper side of the second U-shaped frame 13.

[0047] When the traction frame 14 moves along the rectangular groove of the sliding groove 15 to the right side of the trapezoidal groove, the right side of the traction frame 14 fits with the first fixed frame 9. At this time, the telescopic end of the first spring pin 26 inserts into the first round hole on the upper side of the second U-shaped frame 13. Subsequently, the user stops the operation of the winch, causing the above parts to maintain this state at this moment, and the collecting member 10 has already filled the silt into it. Through the above process, the preparatory work before drilling is completed.

[0048] After completing the preparatory work before drilling, the user starts the first driving member 3 and the second driving member 6 through the remote control terminal. The telescopic part of the first driving member 3 pushes the second driving member 6 and the drill cylinder 7 downward through the protective housing 5. The driving shaft of the second driving member 6 drives the drill cylinder 7 to rotate, so that the drill cylinder 7 drills into the sampling area during rotation. During the process of drilling into the sampling area, the second driving member 6, the drill cylinder 7 and their accessory parts are placed in the isolation cover 1 through the protective housing 5, so as to reduce the interference of the external environment on the drill cylinder 7, thereby improving the stability of the drill cylinder during drilling. And when there is a "repulsive force" when the drill cylinder 7 is drilling, all the baffle plates 11 and the adjacent first fixing frames 9 are in a V shape, and cooperate with the gravity provided by the collecting member 10 and the silt in it to reduce the degree of influence of the isolation cover 1 by the "repulsive force" and increase the resistance of the isolation cover 1 to move upward, so as to ensure the stability of the drilling process.

[0049] When the drilling of the sampling area is completed, the sampling area is sampled by existing sampling methods.

[0050] When the device needs to be taken out, the user manipulates the winch to wind up through the remote control terminal. The winch pulls the towing rope 23 through the third fixing seat 21, so that the sliding frame 18 continues to drive the L-shaped frame 19 to move to the right through the first elastic telescopic rod 24. The L-shaped frame 19 drives the second U-shaped frame 13 to move to the right synchronously through the first spring pin 26 (the limiting frame 28 moves synchronously with the L-shaped frame 19). During this process, since the towing frame 14 is blocked by the first fixing frame 9, the sliding frame 18 and its accessory parts will squeeze the second elastic telescopic rod 25 during the process of moving to the right, causing the telescopic part of the second elastic telescopic rod 25 to retract and causing relative movement between the L-shaped frame 19 and the towing frame 14.

[0051] During the process of the sliding frame 18 moving to the right, the second U-shaped frame 13 moves to the right and breaks through the limit of the second spring pin 27, so that the telescopic part of the second spring pin 27 retracts. The second U-shaped frame 13 thus drives the left side of the collecting member 10 to move to the right. Through the above actions, the right side of the collecting member 10 remains fixed, and the left side of the collecting member 10 contracts to the right, so that the collecting member 10 squeezes out the silt in it during the contraction process, reducing the overall weight of the collecting member 10.

[0052] When the limit frame 28 moves to the notch positions of the two baffles 11, the sliding frame 22 has moved upward to the limit position along the third fixed seat 21. When the winch continues to wind, the winch drives the isolation cover 1 and its attached parts upward through the third fixed seat 21 and all the sliding frames 22, so that the device is separated from the sampling area. During the upward movement of all the baffles 11 along with the isolation cover 1, the water flow exerts resistance on all the baffles 11, causing all the baffles 11 to swing along the adjacent first fixing frames 9 respectively, thereby reducing the resistance of the device moving upward (the adjacent torsion springs are tightened during the swinging of the baffles 11).

[0053] After the device is removed from the water surface, place the device on the ship or the shore. After all the baffles 11 come out of the water, the water flow no longer exerts resistance on all the baffles 11. Therefore, all the baffles 11 swing and reset under the action of the adjacent torsion springs, so that the baffles 11 return to Figure 6 their original state. After the isolation cover 1 contacts the ship or the shore, the third fixed seat 21 and all the sliding frames 22 move downward so as not to drag the towing rope 23 anymore. Under the action of the second elastic telescopic rod 25, a repulsive force is generated between the telescopic end of the second elastic telescopic rod 25 and the towing frame 14. Thus, the second elastic telescopic rod 25 drives the sliding frame 18 to move leftward and reset. The sliding frame 18 drives the L-shaped frame 19 to move relative to the towing frame 14. The sliding frame 18 drives the second U-shaped frame 13 to move leftward through the first spring pin 26 (the left side of the collecting member 10 is pulled during the leftward movement of the second U-shaped frame 13). When the second U-shaped frame 13 moves to a position where the second spring pin 27 can limit the second U-shaped frame 13, the telescopic end of the second spring pin 27 inserts into the second round hole in the second U-shaped frame 13 and limits the second U-shaped frame 13, so that the second U-shaped frame 13 and the first T-shaped frame 12 form an integral body. By then, the L-shaped frame 19 and its attached parts continue to move leftward. When the L-shaped frame 19 and the first spring pin 26 move leftward, since the second U-shaped frame 13 has formed an integral body with the first T-shaped frame 12, the telescopic end of the first spring pin 26 will be squeezed and retracted by the second U-shaped frame 13 during the movement of the L-shaped frame 19.

[0054] When the sliding frame 18 moves leftward until the telescopic part of the second elastic telescopic rod 25 fully extends and the right side inside the L-shaped frame 19 fits against the right side of the upper part of the traction frame 14, the telescopic part of the elastic telescopic frame 20 extends and drives the sliding frame 18 to move leftward. The sliding frame 18 drives the traction frame 14 to move leftward to reset through the L-shaped frame 19 (the right side of the collection piece 10 is squeezed during the leftward movement of the traction frame 14), so that the traction frame 14 moves from the trapezoidal groove of the sliding groove 15 to the rectangular groove and is lifted upward therefrom. The traction frame 14 drives the L-shaped frame 19 to lift upward. During the process of the first spring pin 26 lifting along with the L-shaped frame 19, the telescopic part of the first spring pin 26 is no longer blocked by the second U-shaped frame 13. Therefore, the telescopic part of the first spring pin 26 resets. During the process of the L-shaped frame 19 lifting upward, the first elastic telescopic rod 24 is squeezed, and the first elastic telescopic rod 24 thus returns to the energy storage state. When the sliding frame 18 and its attached parts move back to the state in Figure 8 After that, the collection piece 10 is in a contracted state. At this time, the reset action of the above parts has been completed. When the device needs to be used again, just repeat the above actions.

[0055] Embodiment 2: On the basis of Embodiment 1, the present invention can also achieve the following actions and effects:

[0056] In this Embodiment 1, the first fixed seat 2 is fixedly connected to the upper side of the first driving member 3. The application background is that the isolation cover 1 falls to a flat rock formation or a flat and hard sampling area. However, in this embodiment, the first fixed seat 2 is rotatably connected to the upper side of the first driving member 3, and fixing equipment can be installed at this position. The application background is that the isolation cover 1 does not fall to a flat rock formation or a flat and hard sampling area, resulting in the isolation cover 1 not being in a vertical state. And the first driving member 3 and its attached parts will remain vertical under the action of gravity. In a way that simulates a pendulum, when the isolation cover 1 is not in a vertical state, the first driving member 3 and its attached parts can be automatically calibrated according to gravity, and then the connection position of the first fixed seat 2 and the first driving member 3 is fixed through the fixing equipment.

[0057] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments.

Claims

1. A drilling device for hydrogeological exploration, characterized in that, Comprising: An isolation cover (1), the isolation cover (1) is provided with uniformly distributed through holes, a first fixing seat (2) is fixedly connected inside the isolation cover (1), the first fixing seat (2) is provided with a first driving member (3), the telescopic end of the first driving member (3) is fixedly connected with a first U-shaped frame (4), the first U-shaped frame (4) is fixedly connected with a protective shell (5), a second driving member (6) is arranged inside the protective shell (5), the driving shaft of the second driving member (6) is fixedly connected with a drill cylinder (7), the outer side of the isolation cover (1) is fixedly connected with uniformly distributed second fixing seats (8), the second fixing seats (8) are fixedly connected with a first fixing frame (9), the first fixing frame (9) is provided with a collecting member (10), a fixing assembly for fixing the collecting member (10) to the first fixing frame (9) is arranged on the first fixing frame (9), an expanding assembly for expanding the collecting member (10) is arranged on the first fixing frame (9), and a driving assembly is arranged on the isolation cover (1); The first fixing frame (9) is limited and rotatably connected with symmetric baffles (11), a torsion spring is fixedly connected between the baffles (11) and the first fixing frame (9), and two inclined surfaces are arranged on the lower side of the first fixing frame (9); The fixing assembly includes a first T-shaped frame (12), a second U-shaped frame (13), a traction frame (14) and a sliding groove (15), the first T-shaped frame (12) is fixedly connected with the first fixing frame (9), the second U-shaped frame (13) is slidably connected with the first T-shaped frame (12), the side of the second U-shaped frame (13) close to the second fixing seat (8) passes through the collecting member (10) and is fixedly connected therewith, the traction frame (14) is fixedly connected with the side of the collecting member (10) close to the adjacent first T-shaped frame (12), the sliding groove (15) is arranged on the first fixing frame (9), and the traction frame (14) is limited and slidable along the sliding groove (15); The expanding assembly includes a second T-shaped frame (16), a second fixing frame (17), a sliding frame (18), an L-shaped frame (19) and an elastic telescopic frame (20), the second T-shaped frame (16) is fixedly connected with the side of the adjacent first fixing frame (9) away from the second fixing seat (8), the second fixing frame (17) is fixedly connected between the second T-shaped frame (16) and the isolation cover (1), the sliding frame (18) slides along the second fixing frame (17), the L-shaped frame (19) slides along the sliding frame (18), the elastic telescopic frame (20) is fixedly connected with the second T-shaped frame (16), the telescopic end of the elastic telescopic frame (20) passes through the L-shaped frame (19) and is fixedly connected with the sliding frame (18), the L-shaped frame (19) slides along the telescopic end of the elastic telescopic frame (20), and the upper side of the traction frame (14) is limited and slidably connected with the L-shaped frame (19).

2. The drilling equipment for hydrogeological exploration according to claim 1, characterized in that, The side of the collecting member (10) and the adjacent traction frame (14) facing the adjacent first T-shaped frame (12) are both inclined.

3. A drilling device for hydrogeological exploration according to claim 1, characterized in that, The sliding groove (15) is composed of a rectangular groove and a trapezoidal groove.

4. A drilling device for hydrogeological exploration according to claim 1, characterized in that, The driving assembly includes a third fixed seat (21), a sliding frame (22) and a towing rope (23). The sliding frame (22) slides along the outer side of the isolation cover (1). A plurality of the sliding frames (22) are evenly arranged in the circumferential direction of the isolation cover (1). The upper sides of all the sliding frames (22) are fixedly connected to the third fixed seat (21). The third fixed seat (21) is located above the isolation cover (1). The towing rope (23) moves along the second fixed frame (17) and the second T-shaped frame (16) and is fixedly connected to the sliding frame (18).

5. A drilling device for hydrogeological exploration according to claim 4, characterized in that, A first elastic telescopic rod (24) is fixedly connected between the sliding frame (18) and the L-shaped frame (19). The sliding frame (18) is hinged with a second elastic telescopic rod (25). The telescopic end of the second elastic telescopic rod (25) is hinged with the towing frame (14). A first spring pin (26) is fixedly connected to one side of the L-shaped frame (19) close to the adjacent towing frame (14). When the telescopic end of the first spring pin (26) is inserted into the second U-shaped frame (13), the first spring pin (26) is used to limit the second U-shaped frame (13). A second spring pin (27) for limiting the second U-shaped frame (13) is fixedly connected inside the first T-shaped frame (12).

6. The drilling equipment for hydrogeological exploration according to claim 5, characterized in that, The supporting force provided by the second elastic telescopic rod (25) to the towing frame (14) is greater than the supporting force provided by the elastic telescopic frame (20) to the L-shaped frame (19).

7. A drilling device for hydrogeological exploration according to claim 6, characterized in that, The L-shaped frame (19) is fixedly connected with a limiting frame (28). The limiting frame (28) is used to limit the symmetric baffles (11). The baffles (11) are provided with notches.

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