Drilling equipment for hydraulic ring geological survey

By introducing universal couplings and sensor designs into geological survey equipment, the problem of inability to turn and difficult sample transfer is solved, and flexible surveying and efficient sample detection are achieved.

CN120333891AInactive Publication Date: 2025-07-18河南省地质矿产勘查开发局第四地质矿产调查院
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Patent Information

Application Number
CN202510342139.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2025-07-18
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing geological survey equipment cannot turn, and when encountering hard objects, it needs to be re-positioned, which is time-consuming and labor-intensive, and the sample is inconvenient to transfer, and the high equipment height leads to difficulty in operation.

Method used

The drill bit, twisted dragon tube and universal coupling design is combined with electric telescopic rod and sensor to achieve flexible steering and sample detection of the drill bit, transmit torque through the universal coupling and reduce friction. The rubber tube adapts to the swing of the twisted dragon tube, and the sensor detects the sample humidity and pH value.

Benefits of technology

It realizes avoidance and path turning of drill bits when encountering hard objects, improves survey efficiency, facilitates sample transfer and detection, and reduces operation difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the field of drilling for hydraulic ring geological survey, and particularly relates to drilling equipment for hydraulic ring geological survey, which comprises sampling equipment and detection equipment, the sampling equipment comprises a drill bit and auger pipes, a plurality of spiral shafts in the auger pipes are in transmission connection end to end, the drill bit is located at the bottom of the bottommost auger pipe, and the spiral shaft in the bottommost auger pipe is in transmission connection with the drill bit; a first driving motor is arranged at the top of the spiral shaft in the topmost drill bit in a transmission manner; a drill bit, an auger pipe and a first driving motor are arranged in the sampling equipment, so that when sampling is needed, the first driving motor is started, and the first driving motor drives a spiral shaft in the auger pipe and the drill bit to rotate for sampling.
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Description

Technical Field

[0001] The present invention belongs to the field of drilling for hydrogeological, engineering geological and environmental geological exploration, and specifically relates to a drilling device for hydrogeological, engineering geological and environmental geological exploration. Background Art

[0002] Engineering geological drilling is an important method to obtain accurate geological data underground. And current engineering geological drilling refers to the means of using mechanical equipment or tools to drill holes in the soil and taking out the soil to understand the geological conditions, simply called drilling. It is an exploration method in engineering geological exploration, aiming to understand the engineering geological and hydrogeological problems related to hydraulic structures (dams, tunnels, powerhouses, etc.). Drilling is generally carried out on the basis of obtaining certain data through engineering geological mapping and geophysical prospecting. It is still the main means of hydroelectric engineering geological exploration work. In-situ stress tests are also one of the tasks of engineering geological drilling.

[0003] The existing geological exploration equipment mainly has the following disadvantages:

[0004] 1. It cannot turn. Most geological exploration equipment uses the method of drilling and sampling for exploration. When encountering some hard objects such as stones or metals that the drill bit cannot break during the drilling process, the staff can only change to other positions and start the exploration again, which is time-consuming and laborious.

[0005] 2. It is inconvenient to transfer samples. Geological exploration equipment mostly uses the method of vertical drilling, and the height of most geological exploration equipment is very high, resulting in inconvenience for the staff to transfer the samples. Summary of the Invention

[0006] In order to make up for the deficiencies of the existing technology and solve the problems that it cannot turn, most geological exploration equipment uses the method of drilling and sampling for exploration. When encountering some hard stones or metals that the drill bit cannot break during the drilling process, the staff can only change to other positions and start the exploration again, which is time-consuming and laborious, and it is inconvenient to transfer samples. Geological exploration equipment mostly uses the method of vertical drilling, and the height of most geological exploration equipment is very high, resulting in inconvenience for the staff to transfer the samples.

[0007] The technical solution adopted by the present invention to solve its technical problems is: to provide a drilling device for hydrogeological, engineering geological and environmental geological exploration, including: a sampling device and a detection device;

[0008] The sampling device includes a drill bit and a screw conveyor pipe. A third universal coupling is drivingly provided between the internal spiral shafts of several screw conveyor pipes. The drill bit is located at the bottom of the lowermost screw conveyor pipe. A first universal coupling is provided at the bottom of the lowermost screw conveyor pipe. The spiral shaft inside the lowermost screw conveyor pipe is drivingly connected to the drill bit through the first universal coupling. At the top of the spiral shaft inside the uppermost screw conveyor pipe, a first driving motor is drivingly provided. A first fixing platform is provided at the top of the drill bit. Three electric telescopic rods are equiangularly provided at the top edge of the first fixing platform. Second universal joints are provided at the top and bottom of the electric telescopic rods. The three electric telescopic rods are respectively drivingly connected to the screw conveyor pipe and the drill bit through the two second universal joints;

[0009] The detection device includes a storage platform and a second fixing platform. The storage platform is located at the top of the uppermost screw conveyor pipe. The storage platform is a frustum of a cone with a larger upper part and a smaller lower part, and both the top and bottom of the storage platform are open. A limiting platform is provided at the top inner wall of the storage platform. The limiting platform communicates with the bottom of the storage platform. The top of the limiting platform is an inclined surface. The second fixing platform is located at the top of the storage platform. A humidity sensor and a pH sensor are provided at the bottom of the second fixing platform.

[0010] During operation, by starting the first driving motor, the rotation of the first driving motor drives the spiral shafts in several screw conveyor pipes to rotate. The spiral shafts drive the drill bit to rotate. The drill bit rotates to drill into the ground. Since the drill bit rotates spirally upward, the drilled rock and soil are stacked between the drill bit and the screw conveyor pipe under the guidance of the drill bit, and then are conveyed upward by the rotating spiral shaft in the screw conveyor pipe, and then enter the storage platform through the guidance of the limiting platform. Due to the limitation of the limiting platform, the sample is not easily leaked. Then, the humidity sensor and the pH sensor are used to detect the humidity value and the pH value of the sample respectively. When encountering hard objects such as stones and metals that prevent the device from diving, start the contraction of one of the electric telescopic rods, so that the electric telescopic rod drives the drill bit to deflect towards the activated electric telescopic rod through the first fixing seat, realizing the avoidance of hard objects that cannot be damaged.

[0011] Preferably, the diameter of the drill bit is larger than the diameter of the screw conveyor pipe. A through circular hole is provided inside the first fixing platform. A bearing is fixedly provided in the circular hole of the first fixing platform. The side of the first universal coupling away from the screw conveyor pipe is drivingly connected to the drill bit through a rotating shaft passing through the inner hole of the bearing.

[0012] During operation, since the diameter of the drill bit is larger than that of the auger pipe, the diameter of the auger pipe is smaller than the diameter of the drilled hole, so that the auger pipe can turn inside the hole. The internal spiral shaft at the bottom of the auger pipe is drivingly connected to the drill bit through a first universal coupling. The rotation of the internal spiral shaft inside the auger pipe can drive the drill bit to rotate through the first universal coupling. Through the setting of the first universal coupling, the first universal coupling can still transmit torque well during the swinging process of the drill bit. Through the setting of the bearing, the friction force received during the rotation of the first universal coupling is reduced, and the rotation efficiency of the first universal coupling is improved.

[0013] Preferably, a rubber pipe is provided between the outer walls of several of the auger pipes. Several of the auger pipes are fixedly connected through several of the rubber pipes, and several of the auger pipes and several of the rubber pipes communicate with each other.

[0014] During operation, through the setting of the rubber pipe, since the rubber pipe is a flexible material, the rubber pipe can deform freely along with the swinging between each auger pipe.

[0015] Preferably, an internal gear is provided at the bottom of the second fixed platform. The humidity sensor and the PH sensor are respectively drivingly connected to the bottom of the internal gear. A scraping block is drivingly provided at the bottom of the internal gear through a convex block.

[0016] During operation, through the setting of the humidity sensor and the PH sensor, it is convenient to detect the PH value and humidity value of the sample. Through the humidity sensor and the PH sensor being respectively drivingly connected to the bottom of the internal gear, the rotation of the internal gear can drive the humidity sensor, the PH sensor and the convex block to rotate together, which is convenient for adjusting the detection positions of the PH sensor and the humidity sensor and driving the convex block to scrape the sample into the discharge pipe.

[0017] Preferably, both sides of the bottom of the scraping block are arc surfaces that fit the inner wall of the storage table and the outer wall of the limiting table. A first gear is meshed with one side of the internal teeth of the internal gear. A second driving motor is provided at the top of the second fixed platform. The fixed end of the second driving motor is fixedly connected to the second fixed platform. The output shaft of the second driving motor penetrates the outer wall of the second fixed platform and is drivingly connected to the first gear.

[0018] During operation, through the meshing of the internal gear and the first gear, the rotation of the first gear can drive the internal gear to rotate. And since the number of teeth of the internal gear is larger than that of the first gear, the rotation speed of the internal gear is reduced and the torque is increased. Since both sides of the bottom of the scraping block are arc surfaces that fit the inner wall of the storage table and the outer wall of the limiting table, the scraping block can rotate freely in the storage table. Through the output shaft of the second driving motor penetrating the outer wall of the second fixed platform and being drivingly connected to the first gear, the rotation of the second driving motor can drive the first gear to rotate.

[0019] Preferably, a discharge pipe is provided on one side of the outer surface of the storage table. The discharge pipe penetrates through the storage table and is communicated with the inside of the storage table. A motor compartment is fixedly provided on the top of the second fixed table. The first driving motor is located inside the motor compartment. The fixed end of the first driving motor is fixedly connected to the second fixed table. The output shaft of the first driving motor penetrates through the outer wall of the second fixed table and is in transmission connection with the spiral shaft inside the topmost auger pipe. A plurality of lifting rings are fixedly provided on the top of the second fixed table at equal angles.

[0020] During operation, the output shaft of the first driving motor penetrates through the outer wall of the second fixed table and is in transmission connection with the spiral shaft inside the topmost auger pipe, so that the first driving motor rotates to drive the spiral shaft inside the auger pipe to rotate. Through the arrangement of the lifting rings, it is convenient for the crane to lift.

[0021] The specific beneficial effects are as follows:

[0022] 1. For the drilling equipment for hydrogeological investigation of the present invention, by arranging a drill bit, an auger pipe and a first driving motor inside the sampling device, when sampling is required, by starting the first driving motor, the first driving motor drives the spiral shaft inside the auger pipe and the drill bit to rotate for sampling.

[0023] 2. For the drilling equipment for hydrogeological investigation of the present invention, by arranging a storage table, a second fixed table, a limiting table, a temperature sensor and a PH sensor inside the detection device, when detection is required, the temperature sensor and the PH sensor can detect the sampled sample.

[0024] The side of the first universal coupling away from the auger pipe is in transmission connection with the drill bit through a rotating shaft penetrating through the inner hole of the bearing. The spiral shaft inside the bottommost auger pipe is in transmission connection with the drill bit through the first universal coupling. Through the arrangement of the first universal coupling, the first universal coupling can still transmit torque well during the swinging process of the drill bit. Through the arrangement of the bearing, the friction force received during the rotation of the first universal coupling is reduced, and the rotation efficiency of the first universal coupling is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 is a three-dimensional view of the present invention;

[0027] Figure 2 is a partial three-dimensional view of the present invention;

[0028] Figure 3 is a partial three-dimensional view of the present invention;

[0029] Figure 4is a partial perspective view of the present invention;

[0030] Figure 5 is a partial perspective view of the present invention;

[0031] Figure 6 is a partial perspective view of the present invention.

[0032] In the figure: 10, sampling device; 20, detection device; 1001, drill bit; 1002, auger pipe; 1003, rubber pipe; 1004, electric telescopic rod; 1005, first universal coupling; 1006, bearing; 1007, second universal joint; 1008, first fixing table; 1009, third universal coupling; 1010, first driving motor; 2001, storage table; 2002, lifting ring; 2003, discharge pipe; 2004, motor cabin; 2005, second fixing table; 2006, first gear; 2007, humidity sensor; 2008, PH sensor; 2010, scraping block; 2011, second driving motor; 2012, internal gear; 2013, limiting table. Detailed implementation manners

[0033] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0034] As Figures 1 to 6 shown, the present invention provides a drilling device for hydrogeological exploration, including: a sampling device 10 and a detection device 20;

[0035] The sampling device 10 includes a drill bit 1001 and an auger pipe 1002. A third universal coupling is provided for transmission between the internal spiral shafts of several auger pipes 1002. The drill bit 1001 is located at the bottom of the bottommost auger pipe 1002. A first universal coupling 1005 is provided at the bottom of the bottommost auger pipe 1002. The internal spiral shaft of the bottommost auger pipe 1002 is in transmission connection with the drill bit 1001 through the first universal coupling 1005. The top of the spiral shaft inside the topmost auger pipe 1002 is provided with a first driving motor 2011. The top of the drill bit 1001 is provided with a first fixing table 1008. Three electric telescopic rods 1004 are equiangularly provided at the top edge of the first fixing table 1008. Second universal joints 1007 are provided at the top and bottom of the electric telescopic rods 1004. The three electric telescopic rods 1004 are respectively in transmission connection with the auger pipe 1002 and the drill bit 1001 through two second universal joints 1007;

[0036] The detection equipment 20 includes a storage table 2001 and a second fixed table 2005. The storage table 2001 is located at the top of the topmost auger tube 1002. The storage table 2001 is a round table that is larger at the top and smaller at the bottom. The top and bottom of the storage table 2001 are both open. A limit table 2013 is provided at the top of the inner wall of the storage table 2001. The limit table 2013 is connected to the bottom of the storage table 2001, and the top of the limit table 2013 is an inclined surface. The second fixed table 2005 is located at the top of the storage table 2001. A humidity sensor 2007 and a PH sensor 2008 are provided at the bottom of the second fixed table 2005.

[0037] During operation, by starting the first driving motor 2011, the first driving motor 2011 rotates to drive the spiral shafts in the plurality of auger tubes 1002 to rotate, and the spiral shafts drive the drill bit 1001 to rotate, and the drill bit 1001 rotates to drill underground. As the drill bit 1001 spirally rotates upward, the drilled rock and soil is accumulated between the drill bit 1001 and the auger tube 1002 under the guidance of the drill bit 1001, and then transported upward through the rotating spiral shaft in the auger tube 1002, and then guided by the limit table 2013. After entering the storage table 2001, since the limit sample of the limit table 2013 is not easy to leak out, the humidity value and pH value of the sample are detected by the humidity sensor 2007 and the pH sensor respectively. When encountering hard objects such as stones and metals that make the device unable to dive, one of the electric telescopic rods 1004 is started to contract, so that the electric telescopic rod 1004 drives the drill bit 1001 to deflect toward the started electric telescopic rod 1004 through the first fixed seat, thereby avoiding the hard objects that cannot be destroyed.

[0038] Preferably, the diameter of the drill bit 1001 is larger than the diameter of the auger tube 1002, a circular hole is provided inside the first fixed platform 1008, a bearing 1006 is fixed in the circular hole of the first fixed platform 1008, and the first universal coupling 1005 is connected to the drill bit 1001 through a rotating shaft passing through the inner hole of the bearing 1006 on the side away from the auger tube 1002.

[0039] During operation, since the diameter of the drill bit 1001 is larger than the diameter of the auger tube 1002, the diameter of the auger tube 1002 is smaller than the diameter of the drilled hole, so that the auger tube 1002 can turn in the hole, and the spiral shaft inside the bottom auger tube 1002 is connected to the drill bit 1001 through the first universal coupling 1005, so that the rotation of the spiral shaft inside the auger tube 1002 can drive the drill bit 1001 to rotate through the first universal coupling 1005. Through the setting of the first universal coupling 1005, the first universal coupling 1005 can still transmit torque well during the swinging of the drill bit 1001. The setting of the bearing 1006 reduces the friction force of the first universal coupling 1005 during rotation, thereby improving the rotation efficiency of the first universal coupling 1005.

[0040] Preferably, a rubber tube 1003 is provided between the outer walls of several auger tubes 1002. The several auger tubes 1002 are fixedly connected to each other through several rubber tubes 1003, and the several auger tubes 1002 and the several rubber tubes 1003 are interconnected with each other.

[0041] During operation, due to the provision of the rubber tube 1003, since the rubber tube 1003 is made of a flexible material, the rubber tube 1003 can be bent as it deforms with the swing between the respective auger tubes 1002.

[0042] Preferably, an internal gear 2012 is provided at the bottom of the second fixed platform 2005. A humidity sensor 2007 and a pH sensor are respectively drivingly connected to the bottom of the internal gear 2012. A scraping block 2010 is drivingly provided at the bottom of the internal gear 2012 through a convex block.

[0043] During operation, the provision of the humidity sensor 2007 and the pH sensor facilitates the detection of the pH value and the humidity value of the sample. Since the humidity sensor 2007 and the pH sensor are respectively drivingly connected to the bottom of the internal gear 2012, the rotation of the internal gear 2012 can drive the humidity sensor 2007, the pH sensor, and the convex block to rotate together, facilitating the adjustment of the positions detected by the pH sensor and the humidity sensor 2007 and driving the convex block to scrape the sample into the discharge pipe 2003.

[0044] Preferably, both sides of the bottom of the scraping block 2010 are arc surfaces that fit the inner wall of the storage platform 2001 and the outer wall of the limiting platform 2013. A first gear 2006 is meshed with one side of the internal teeth of the internal gear 2012. A second driving motor 2011 is provided at the top of the second fixed platform 2005. The fixed end of the second driving motor 2011 is fixedly connected to the second fixed platform 2005. The output shaft of the second driving motor 2011 penetrates the outer wall of the second fixed platform 2005 and is drivingly connected to the first gear 2006.

[0045] During operation, since the internal gear 2012 is meshed with the first gear 2006, the rotation of the first gear 2006 can drive the internal gear 2012 to rotate. And since the number of teeth of the internal gear 2012 is greater than that of the first gear 2006, the rotation speed of the internal gear 2012 is reduced and the torque is increased. Since both sides of the bottom of the scraping block 2010 are arc surfaces that fit the inner wall of the storage platform 2001 and the outer wall of the limiting platform 2013, the scraping block 2010 can rotate freely within the storage platform 2001. Since the output shaft of the second driving motor 2011 penetrates the outer wall of the second fixed platform 2005 and is drivingly connected to the first gear 2006, the rotation of the second driving motor 2011 can drive the first gear 2006 to rotate.

[0046] Preferably, a discharge pipe 2003 is provided on one side of the outer surface of the storage table 2001. The discharge pipe 2003 penetrates through the storage table 2001 and is communicated with the inside of the storage table 2001. A motor cabin 2004 is fixedly provided on the top of the second fixed table. The first driving motor 2011 is located inside the motor cabin 2004. The fixed end of the first driving motor 2011 is fixedly connected to the second fixed table 2005. The output shaft of the first driving motor 2011 penetrates through the outer wall of the second fixed table 2005 and is in transmission connection with the spiral shaft inside the topmost auger pipe 1002. A plurality of lifting rings 2002 are fixedly provided on the top of the second fixed table 2005 at equal angles.

[0047] During operation, the output shaft of the first driving motor 2011 penetrates through the outer wall of the second fixed table 2005 and is in transmission connection with the spiral shaft inside the topmost auger pipe 1002, so that the rotation of the first driving motor 2011 drives the spiral shaft inside the auger pipe 1002 to rotate. Through the arrangement of the lifting rings 2002, it is convenient for the crane to lift.

[0048] The specific working process is as follows:

[0049] By starting the first drive motor 1010, the rotation of the first drive motor 1010 drives the rotation of the spiral shafts in several auger pipes 1002. The spiral shafts drive the rotation of the drill bit 1001. The drill bit 1001 rotates to drill into the ground. Since the drill bit 1001 rotates spirally upward, the drilled rock and soil move upward under the guidance of the drill bit 1001 and accumulate between the drill bit 1001 and the auger pipe 1002. Then, it is conveyed upward through the rotating spiral shafts in the auger pipes 1002 and enters the storage table 2001 through the guidance of the limit platform 2013. Due to the limitation of the limit platform 2013, the sample is not likely to leak. Then, through the humidity sensor 2007 and the PH sensor 2008, the humidity and PH value of the sample are detected respectively. When encountering hard objects such as stones and metals that prevent the equipment from diving, by controlling the electric telescopic rods 1004 at different positions, the first fixed platform 1008 can be swung in different directions. The swing of the first fixed platform 1008 will drive the swing of the bearing 1006. The swing of the bearing 1006 will drive the swing of the first universal coupling 1005. The first universal coupling 1005 will drive the swing of the drill bit 1001. Thus, by controlling the electric telescopic rods 1004 at different positions, the swing direction of the drill bit 1001 can be controlled. Then, through the swing of the drill bit 1001, the sampling path of the equipment can be deflected and turned, so as to avoid hard objects that cannot be damaged. When the sample needs to be transferred, by default, the scraping block 2010 is located at the position of the discharge pipe 2003 to block the discharge port of the discharge pipe 2003. By starting the second drive motor 2011, the second drive motor 2011 drives the rotation of the first gear 2006. The first gear 2006 drives the rotation of the internal gear 2012. The internal gear 2012 drives the rotation of the scraping block 2010, so that the scraping block 2010 rotates to push the sample in the storage table 2001 into the discharge pipe 2003, and then it is transferred out along the discharge pipe 2003.

[0050] The above front, back, left, right, up, and down are all based on the Figure 1 description in the attached drawings of the specification. Taking the perspective of the observer as the standard, the side of the device facing the observer is defined as the front, and the left side of the observer is defined as the left, and so on.

[0051] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "middle", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the protection scope of the present invention.

[0052] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A drilling equipment for hydrogeological and environmental geological exploration, characterized in that, Including: a sampling device (10) and a detection device (20); The sampling device (10) includes a drill bit (1001) and a screw conveyor pipe (1002). A third universal coupling (1009) is drivingly provided between the internal spiral shafts of several screw conveyor pipes (1002). The drill bit (1001) is located at the bottom of the bottommost screw conveyor pipe (1002). A first universal coupling (1005) is provided at the bottom of the bottommost screw conveyor pipe (1002). The spiral shaft inside the bottommost screw conveyor pipe (1002) is drivingly connected to the drill bit (1001) through the first universal coupling (1005). At the top of the spiral shaft inside the topmost screw conveyor pipe (1002), a first driving motor (1010) is drivingly provided. At the top of the drill bit (1001), a first fixing platform (1008) is provided. At the top edge of the first fixing platform (1008), three electric telescopic rods (1004) are equiangularly provided. At the top and bottom of the electric telescopic rod (1004), a second universal joint (1007) is provided. The three electric telescopic rods (1004) are respectively drivingly connected to the screw conveyor pipe (1002) and the drill bit (1001) through two second universal joints (1007); The detection device (20) includes a storage platform (2001) and a second fixing platform (2005). The storage platform (2001) is located at the top of the topmost screw conveyor pipe (1002). The storage platform (2001) is a frustum of a cone with a larger top and a smaller bottom, and both the top and bottom of the storage platform (2001) are open. At the top inner wall of the storage platform (2001), a limiting platform (2013) is provided. The limiting platform (2013) communicates with the bottom of the storage platform (2001). The top of the limiting platform (2013) is an inclined surface. The second fixing platform (2005) is located at the top of the storage platform (2001). At the bottom of the second fixing platform (2005), a humidity sensor (2007) and a pH sensor (2008) are provided.

2. The drilling equipment for hydrogeological and environmental geological exploration according to claim 1, characterized in that: The diameter of the drill bit (1001) is larger than the diameter of the screw conveyor pipe (1002). A through circular hole is provided inside the first fixing platform (1008). A bearing (1006) is fixedly provided in the circular hole of the first fixing platform (1008). The side of the first universal coupling (1005) away from the screw conveyor pipe (1002) is drivingly connected to the drill bit (1001) through a rotating shaft passing through the inner hole of the bearing (1006).

3. The drilling equipment for hydrogeological and environmental geological exploration according to claim 2, characterized in that: A rubber pipe (1003) is provided between the outer walls of several screw conveyor pipes (1002). Several screw conveyor pipes (1002) are fixedly connected through several rubber pipes (1003), and several screw conveyor pipes (1002) and several rubber pipes (1003) communicate with each other.

4. The drilling equipment for hydrogeological and engineering geological exploration according to claim 3, wherein: The bottom of the second fixing table (2005) is provided with an internal gear (2012), the humidity sensor (2007) and the pH sensor (2008) are respectively and drivingly connected to the bottom of the internal gear (2012), and a scraping block (2010) is drivingly provided at the bottom of the internal gear (2012) through a convex block.

5. The drilling equipment for hydrogeological and environmental geological exploration according to claim 4, characterized in that: Both sides of the bottom of the scraping block (2010) are arc surfaces that fit the inner wall of the storage table (2001) and the outer wall of the limiting table (2013). A first gear (2006) is meshed on one side of the internal teeth of the internal gear (2012). A second driving motor (2011) is provided on the top of the second fixing table (2005). The fixed end of the second driving motor (2011) is fixedly connected to the second fixing table (2005). The output shaft of the second driving motor (2011) penetrates the outer wall of the second fixing table (2005) and is drivingly connected to the first gear (2006).

6. The drilling equipment for hydrogeological and environmental geological exploration according to claim 5, characterized in that: A discharge pipe (2003) is provided on one side of the outer surface of the storage table (2001). The discharge pipe (2003) penetrates the storage table (2001) and is communicated with the inside of the storage table (2001). A motor cabin (2004) is fixedly provided on the top of the second fixing table (2005). The first driving motor (1010) is located inside the motor cabin (2004). The fixed end of the first driving motor (1010) is fixedly connected to the second fixing table (2005). The output shaft of the first driving motor (1010) penetrates the outer wall of the second fixing table (2005) and is drivingly connected to the spiral shaft inside the topmost auger pipe (1002). A plurality of hanging rings (2002) are fixedly provided on the top of the second fixing table (2005) at equal angles.

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