A rock and soil geological exploration device and method for a pumped storage power station

Abstract

The present invention relates to the technical field of geological survey systems, and in particular to a rock and soil geological survey device and method for a pumped storage power station, comprising a drilling unit and a sampling unit; the drilling unit is a rotating body structure, the bottom of the drilling unit is a drilling end, and a first gap is present on the peripheral wall of the drilling end; the drilling unit has a drilling mode and a sampling mode, when the drilling unit is in the drilling mode, the first gap of the drilling end is sealed, so that the drilling end is in a sealed state; when the drilling unit is in the sampling mode, the first gap of the drilling end is in a non-sealed open state; the sampling unit is arranged above the drilling unit along the axis of the drilling unit; when the drilling unit is in the sampling mode, a soil layer sample enters the sampling unit from the first gap to achieve sampling; after the sampling is completed, the drilling unit switches to the drilling mode, and the sampling unit rises along the axis of the drilling unit. The present invention enables the device to perform sampling while drilling, thereby improving the sampling efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of geological exploration systems, and in particular to a rock and soil geological exploration device and method for a pumped storage power station. Background Art

[0002] The existing geological survey system mainly uses drilling to sample rock and soil. The scope and objects of sampling are very wide. Depending on the geographical location, the texture of the soil varies, and it is often necessary to sample the soil at different depths.

[0003] In the prior art, drilling and sampling need to be performed in steps, that is, firstly, the drill bit is used to drill to the soil layer position of the specified depth, and then the sample at the corresponding soil layer position is sampled. After the sampling is completed, the drill bit is continued to drill to the soil layer position of the next depth layer, and then the sample at the corresponding soil layer position is sampled. Since the drilling and sampling are performed in steps, there is a problem of low sampling efficiency. Summary of the invention

[0004] In view of the defects of the prior art, the present invention provides a rock and soil geological exploration device and method for a pumped storage power station. Before use, a drilling site is selected first, and then the drilling unit is vertically arranged. The drilling unit is in a drilling mode. At this time, the sealing member seals the first gap on the drilling member. As the drilling unit continuously descends in the vertical direction, a borehole is formed on the drilling site. When the drilling unit reaches the designated position, the drilling unit switches to a sampling mode, and a first driving device drives the sealing member to rotate out of the first gap in the drilling member. At the same time, the first driving device also drives the sealing member to rotate around the axis of the drilling member after being rotated out, so that The first gap coincides with the second gap, and then the third locking device locks the seal on the extension rod, so that the seal and the drilling member rotate synchronously, and the bottom sealing device in the collecting device opens the collecting slot, and the drilling member then continues to drill downward along the depth direction of the borehole, and the soil layer samples enter the collecting box through the first gap, the second gap and the collecting slot in turn. After the collection is completed, the drilling unit switches to the drilling mode, the bottom sealing device seals the collecting slot, the lifting device drives the collecting device to rise, and the drilling unit continues to drill the bottom of the borehole, so that the device can also take samples while drilling, thereby improving the sampling efficiency.

[0005] The technical solution adopted by the present invention is as follows:

[0006] The present invention provides a rock and soil geological exploration device for a pumped storage power station, comprising: a drilling unit (1) and a sampling unit (2);

[0007] The drilling unit (1) is a rotating body structure, the bottom of the drilling unit (1) is a drilling end, and a first gap is present on the peripheral wall of the drilling end; the drilling unit (1) has a drilling mode and a sampling mode, when the drilling unit (1) is in the drilling mode, the first gap of the drilling end is sealed, so that the drilling end is in a sealed state; when the drilling unit (1) is in the sampling mode, the first gap of the drilling end is in a non-sealed open state;

[0008] The sampling unit (2) is arranged above the drilling unit (1) by moving along the axis of the drilling unit (1); when the drilling unit (1) is in the sampling mode, the soil layer sample enters the sampling unit (2) from the first gap to achieve sampling; after the sampling is completed, the drilling unit (1) switches to the drilling mode, and the sampling unit (2) rises along the axis of the drilling unit (1).

[0009] Preferably, the drilling unit (1) comprises a drilling member (11), a sealing member (12) and a first driving device (13);

[0010] The drilling member (11) is a rotating body structure, the drilling member (11) is arranged in a drill hole, and a plurality of first slits are arranged on the peripheral wall of the drilling member (11); each of the first slits is arranged around the axis of the drilling member (11); the first slits are spiral-shaped; an extension rod (111) is fixedly arranged on the upper part of the drilling member (11) along the axis of the drilling member (11);

[0011] The sealing member (12) is a spiral structure, the sealing member (12) is provided with a second slit, the second slit is a spiral structure, the sealing member (12) is slidably arranged in the first slit along the extension direction of the first slit, and the sealing member (12) is threadedly matched with the first slit of the drilling member (11);

[0012] The first driving device (13) is arranged on the upper part of the sealing member (12), and the first driving device (13) drives the sealing member (12) to move in the first gap to close or open the first gap.

[0013] Preferably, the first driving device (13) comprises a rotating driving member (131), a magnetic block (132), an electromagnetic unit and a casing (134);

[0014] The rotary drive member (131) is fixedly arranged on the upper part of the sealing member (12) along the axis of the sealing member (12), and a plug-in ring (1311) is fixedly arranged on the lower part of the rotary drive member (131) along the axis of the rotary drive member (131);

[0015] The magnetic blocks (132) correspond to the sealing members (12) one by one, and the magnetic blocks (132) are evenly arranged on the peripheral wall of the rotating driving member (131) around the axis of the rotating driving member (131);

[0016] The casing (134) is fixedly arranged on the peripheral wall of the drilling member (11) along the axis of the drilling member (11), and the casing (134) surrounds the sealing member (12);

[0017] The electromagnetic unit is fixedly arranged on the peripheral wall of the casing (134) along the axis of the casing (134); the electromagnetic unit is provided in multiple groups; the electromagnetic units of different groups are evenly arranged on the inner wall of the casing (134) along the axis of the casing (134); each group of the electromagnetic units includes a plurality of electromagnetic plates (133); the plurality of electromagnetic plates (133) are evenly fixedly arranged on the inner wall of the casing (134) around the axis of the casing (134); the electromagnetic plates (133) in the uppermost electromagnetic unit are energized in sequence around the axis of the sealing member (12).

[0018] Preferably, the drilling unit (1) further comprises a first locking device (14), wherein the first locking device (14) is arranged between the drilling member (11) and the sealing member (12); when the drilling unit (1) is in a drilling mode and the sealing member (12) is located in a first gap of the drilling member (11), the first locking device (14) locks the drilling member (11) and the sealing member (12); when the drilling unit (1) is switched from the drilling mode to the sampling mode, the first driving device (13) simultaneously drives the first locking device (14) to operate, thereby unlocking the first locking device (14).

[0019] Preferably, the first locking device (14) comprises a first locking groove (141), a first locking block (142), a first sliding groove and an annular groove (143);

[0020] The annular groove (143) is provided on the upper part of the drilling member (11) along the axis of the drilling member (11); the first sliding groove is provided on the inner ring side wall of the annular groove (143) along the radial direction of the annular groove (143); the first locking block (142) is slidably arranged in the first sliding groove along the extension direction of the first sliding groove; the first locking groove (141) is provided on the inner ring side wall of the plug-in ring (1311); the first locking groove (141) and the first locking block (142) are engaged with each other to engage with the plug-in ring (1311) and the annular groove (143); ) is plugged in and matched along the axis of the drilling piece (11); when the drilling unit (1) is in the drilling mode, the first locking block (142) is snap-fitted with the first locking groove (141), and the sealing member (12) blocks the first gap of the drilling piece (11); when the drilling unit (1) is switched to the sampling mode, the first locking block (142) slides out of the first locking groove (141), and the first locking block (142) no longer snaps into the plug-in ring (1311), thereby achieving unlocking between the drilling piece (11) and the sealing member (12).

[0021] Preferably, the rock and soil geological exploration device for a pumped storage power station further comprises a second locking device (3) and a third locking device (15);

[0022] The second locking device (3) is arranged on the extension rod (111), and when sampling is required, the second locking device (3) is used to lock the sampling unit (2) and the rotating driving member (131) moving along the axis of the drilling member (11);

[0023] The third locking device (15) is arranged on the plug-in ring (1311). After the second locking device (3) locks the sampling unit (2), the third locking device (15) is triggered by the bottom of the sampling unit (2). After being triggered, the third locking device (15) fixes the plug-in ring (1311) on the extension rod (111), thereby achieving the fixing of the position of the sealing member (12) relative to the drilling member (11). At this time, the extension direction of the first gap completely coincides with the extension direction of the second gap, and the first gap is in an open state.

[0024] Preferably, the sampling unit (2) comprises a collecting device (21) and a lifting device (22);

[0025] The collecting device (21) is an annular structure. The collecting device (21) is slidably arranged on the periphery of the extension rod (111) along the axis of the extension rod (111). The collecting device (21) is used to collect soil layer samples. The lifting device (22) is arranged on the upper part of the collecting device (21). The lifting device (22) drives the collecting device (21) to move along the axis of the extension rod (111).

[0026] Preferably, the collecting device (21) comprises a collecting box (211), a bottom sealing device (212) and a collecting tank (213);

[0027] The collecting box (211) is an annular structure, an upper portion of the collecting box (211) is provided with an opening, and the collecting box (211) is slidably arranged on the periphery of the extending rod (111) along the axis of the extending rod (111);

[0028] A plurality of the collecting grooves (213) are provided, and the collecting grooves (213) are opened along the axis of the collecting box (211) and penetrate the bottom of the collecting box (211), and the collecting grooves (213) are evenly arranged around the axis of the collecting box (211);

[0029] The bottom sealing device (212) is arranged in the collection box (211), the lower part of the bottom sealing device (212) extends to the bottom of the collection box (211), and the bottom sealing device (212) can open or close the collection slot (213).

[0030] Preferably, the sampling unit (2) further comprises a synchronization device (23); the synchronization device (23) is arranged at the bottom of the collecting device (21), and the collecting device (21) rotates synchronously with the sealing element (12) through the synchronization device (23).

[0031] The present invention also provides a method for rock and soil geological exploration of a pumped storage power station, comprising the following steps:

[0032] Step 1, selecting a location to be investigated, placing the drilling unit (1) in a vertical state, and operating the drilling unit (1) in a drilling mode, wherein the sealing member (12) seals a first gap on the drilling member (11); the drilling unit (1) is rotated under the drive of a driving mechanism and the drilling unit (1) drills the soil layer in a vertical direction, and the drilling unit (1) forms a borehole at the location to be investigated;

[0033] Step 2: When the drilling unit (1) reaches the soil layer at a specified depth, the drilling unit (1) switches the mode from the drilling mode to the sampling mode and performs sampling. The specific method is as follows:

[0034] The first driving device (13) drives the sealing member (12) to rotate out of the first slit in the drilling member (11), and at the same time, the first driving device (13) drives the sealing member (12) to rotate around the axis of the drilling member (11), so that the first slit and the second slit overlap, and then the third locking device (15) locks the sealing member (12) on the extension rod (111), so that the sealing member (12) and the drilling member (11) rotate synchronously, and the bottom sealing device (212) in the collecting device (21) opens the collecting groove (213), and the drilling member (11) then continues to drill downward along the depth direction of the borehole; as the drilling unit (1) continues to rotate deeper, the soil layer sample at the bottom of the borehole passes through the drilling unit (1) along the first slit and finally enters the sampling unit (2), and the sampling unit (2) collects the soil layer sample;

[0035] Step 3, when the sampling unit (2) completes the collection, the drilling unit (1) switches from the sampling mode to the drilling mode. The specific method is as follows: the bottom sealing device (212) seals the collection tank (213), the lifting device (22) drives the collection device (21) to rise, and the drilling unit (1) continues to drill the bottom of the borehole, so that the device can sample while drilling.

[0036] The rock and soil geological exploration device and method for a pumped storage power station provided by the present invention have the following advantages:

[0037] The present invention provides a drilling unit and a sampling unit. Before use, a drilling site is selected first, and then the drilling unit is vertically arranged. The drilling unit is in a drilling mode. At this time, the sealing member seals the first gap on the drilling member. As the drilling unit continuously descends in the vertical direction, a borehole is formed on the drilling site. When the drilling unit reaches the designated position, the drilling unit switches to a sampling mode. The first driving device drives the sealing member to rotate out of the first gap in the drilling member. At the same time, the first driving device also drives the sealing member to rotate around the axis of the drilling member after being rotated out, so that the first gap and the second gap are closed. Overlap, and then the third locking device locks the seal on the extension rod, so that the seal and the drilling member rotate synchronously, and the bottom sealing device in the collecting device opens the collecting slot, and the drilling member then continues to drill downward along the depth direction of the borehole, and the soil layer samples enter the collecting box through the first gap, the second gap and the collecting slot in turn. After the collection is completed, the drilling unit switches to the drilling mode, the bottom sealing device seals the collecting slot, the lifting device drives the collecting device to rise, and the drilling unit continues to drill the bottom of the borehole, so that the device can take samples while drilling, thereby improving the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a three-dimensional schematic diagram of a rock and soil geological exploration device for a pumped storage power station provided by the present invention;

[0039] Figure 2 It is a three-dimensional schematic diagram of a drilling unit of a rock and soil geological exploration device for a pumped storage power station provided by the present invention in a drilling mode with a first driving device, a first locking device, a third locking device, a lifting device and a casing removed;

[0040] Figure 3 The present invention provides a rock and soil geological exploration device for a pumped storage power station. Figure 2 A local enlarged schematic diagram of the middle A;

[0041] Figure 4 It is a three-dimensional schematic diagram of a rock and soil geological exploration device for a pumped storage power station provided by the present invention, with the casing removed when the drilling unit is in a sampling mode;

[0042] Figure 5 It is a three-dimensional schematic diagram of a rock and soil geological exploration device for a pumped storage power station provided by the present invention, with the drilling unit in a sampling mode removed from the lifting device and the casing;

[0043] Figure 6 It is a cross-sectional stereoscopic schematic diagram of a rock and soil geological exploration device for a pumped storage power station provided by the present invention;

[0044] Figure 7 The present invention provides a rock and soil geological exploration device for a pumped storage power station. Figure 6 A partial enlarged schematic diagram of point B in the middle;

[0045] Figure 8 The present invention provides a rock and soil geological exploration device for a pumped storage power station. Figure 6 A partial enlarged schematic diagram of point C in the middle;

[0046] Fig. 9 The present invention provides a rock and soil geological exploration device for a pumped storage power station. Figure 6 A partial enlarged schematic diagram of point D in the middle;

[0047] Fig.10 It is a cross-sectional stereoscopic schematic diagram of a rock and soil geological exploration device for a pumped storage power station provided by the present invention, with the casing and the lifting device removed;

[0048] Fig.11 The present invention provides a rock and soil geological exploration device for a pumped storage power station. Fig.10 A partial enlarged schematic diagram of point E in the middle.

[0049] The numbers in the figure are:

[0050] 1. Drilling unit; 11. Drilling member; 111. Extension rod; 12. Sealing member; 13. First driving device; 131. Rotating driving member; 1311. Plug ring; 132. Magnetic block; 133. Electromagnetic plate; 134. Housing; 14. First locking device; 141. First locking groove; 142. First locking block; 143. Ring groove; 15. Third locking device; 151. Third locking block; 152. Trigger block; 153. Spring; 154. Trigger groove; 155. Extension plate; 2. Sampling unit; 21. Collecting device; 211. Collecting box; 212. Bottom sealing device; 2121. Bottom sealing plate; 2122. First rotary driver; 2123. Gear; 2124. Gear ring; 2125. Connecting sleeve; 213. Collecting trough; 22. Lifting device; 221. Connecting rope; 222. Winder; 223. Follower ring; 23. Synchronizing device; 231. Synchronizing block; 3. Second locking device; 31. Second locking block. DETAILED DESCRIPTION

[0051] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0052] Reference Figure 1 : The present invention provides a rock and soil geological exploration device for a pumped storage power station, comprising a drilling unit 1 and a sampling unit 2;

[0053] The drilling unit 1 is a rotating body structure, the bottom of the drilling unit 1 is a drilling end, and a first gap exists on the peripheral wall of the drilling end; the drilling unit 1 has a drilling mode and a sampling mode. When the drilling unit 1 is in the drilling mode, the first gap of the drilling end at the bottom of the drilling unit 1 is sealed, so that the drilling end is in a sealed state; when the drilling unit 1 is in the sampling mode, the first gap on the peripheral wall of the drilling end at the bottom of the drilling unit 1 is in a non-sealed open state;

[0054] The sampling unit 2 is moved along the axis of the drilling unit 1 and is arranged above the drilling unit 1. When the drilling unit 1 is in the sampling mode, the soil layer sample enters the sampling unit 2 from the first gap to realize sampling; after the sampling is completed, the drilling unit 1 switches to the drilling mode, and the sampling unit 2 rises along the axis of the drilling unit 1.

[0055] The bottom of the drilling unit 1 is the drilling end, and the drilling unit 1 also includes a driving mechanism, which is used to drive the drilling end to rotate. The structure of the driving mechanism is a prior art and will not be described in detail here. When using it, you need to first select a location to be surveyed, then put the drilling unit 1 in a vertical state, and drive the drilling unit 1 to rotate and drill the soil layer in a vertical direction under the drive of the driving mechanism. The drilling unit 1 forms a borehole at the location to be surveyed. At this time, the drilling unit 1 is in drilling mode;

[0056] When the drilling unit 1 reaches the soil layer at the specified depth, the drilling unit 1 switches the mode from the drilling mode to the sampling mode, and a first gap appears on the peripheral wall of the drilling end of the drilling unit 1. Then the drilling unit 1 continues to rotate deeper, and the soil layer sample at the bottom of the borehole passes through the drilling unit 1 along the first gap and finally enters the sampling unit 2, and the sampling unit 2 collects the soil layer sample;

[0057] When the sampling unit 2 completes the collection, the drilling unit 1 switches from the sampling mode to the drilling mode. At this time, the first gap is blocked, and the soil sample in the borehole can no longer pass through the drilling unit 1. The sampling unit 2 rises along the axis of the drilling unit 1, and the drilling end of the drilling unit 1 drills the bottom of the borehole. After the staff takes out the sample from the sampling unit 2, the sampling unit 2 is lowered for the second time. In this way, the drilling unit 1 can complete the sampling without rising. At the same time, the drilling unit 1 can continue drilling during sampling, which improves the efficiency of sampling.

[0058] Reference Figure 1 and Figure 2 : The drilling unit 1 comprises a drilling member 11, a sealing member 12 and a first driving device 13;

[0059] The drilling member 11 is a rotating body structure, and the drilling member 11 is arranged in the borehole. The drilling member 11 drills the soil layer at the bottom of the borehole. A plurality of first slits are arranged on the peripheral wall of the drilling member 11, and the first slits are arranged around the axis of the drilling member 11; the first slits are spiral; an extension rod 111 is fixedly arranged on the upper part of the drilling member 11 along the axis of the drilling member 11;

[0060] The sealing member 12 is a spiral structure, and a second slit is provided on the sealing member 12. The second slit is a spiral structure, and the sealing member 12 is slidably arranged in the first slit along the extension direction of the first slit. The sealing member 12 is threadedly matched with the first slit on the drilling member 11;

[0061] The first driving device 13 is disposed on the upper portion of the sealing member 12 , and the first driving device 13 drives the sealing member 12 to move in the first gap to close or open the first gap.

[0062] The drilling end of the drilling unit 1 refers to the drilling piece 11. Since the sealing member 12 can be threadedly matched with the first gap on the drilling piece 11, there is also a second gap on the sealing member 12 that is threadedly matched with the first gap. The second gap is a threaded structure. When the sealing member 12 is located in the first gap of the drilling piece 11, the drilling piece 11 is also located in the second gap of the sealing member 12. When the drilling unit 1 is in the drilling mode, the sealing member 12 is located in the first gap, so that the first gap is filled by the sealing member 12, and the soil layer sample in the borehole cannot enter the sampling unit 2 through the first gap; when the drilling unit 1 is in the sampling mode, the first driving device 13 drives the sealing member 12 to rotate, so that the sealing member 12 is rotated out of the first gap. When the sealing member After 12 is completely rotated out of the first gap, the seal 12 no longer rises along the axial direction of the drilling member 11. This is because the sampling unit 2 located on the upper part of the drilling unit 1 is fixed to the extension rod 111 by the second locking device 3. The fixed sampling unit 2 limits the rise of the seal 12. At this time, the first driving device 13 drives the seal 12 to rotate around the axis of the drilling member 11. When the first gap on the drilling member 11 and the second gap on the seal 12 coincide with each other, the third locking device 15 locks the seal 12 on the extension rod 111, so that the seal 12 can rotate synchronously with the drilling member 11. At this time, the soil layer sample in the borehole can enter the sampling unit 2 through the first gap and the second gap, so that the sampling can be completed.

[0063] Reference Fig. 9 The drilling unit 1 further comprises a first locking device 14, which is arranged between the drilling member 11 and the sealing member 12. When the drilling unit 1 is in the drilling mode and the sealing member 12 is located in the first gap of the drilling member 11, the first locking device 14 locks the drilling member 11 and the sealing member 12. When the drilling unit 1 is switched from the drilling mode to the sampling mode, the first driving device 13 simultaneously drives the first locking device 14 to operate, so that the first locking device 14 is unlocked.

[0064] Reference Figure 2 , Figure 3 and Figure 7The first driving device 13 includes a rotary driving member 131, a magnetic block 132, an electromagnetic unit and a casing 134; the rotary driving member 131 is fixedly arranged on the upper part of the sealing member 12 along the axis of the sealing member 12, and a plug-in ring 1311 is fixedly arranged on the lower part of the rotary driving member 131 along the axis of the rotary driving member 131; the magnetic block 132 corresponds to the sealing member 12 one by one, and the magnetic block 132 is evenly arranged on the peripheral wall of the rotary driving member 131 around the axis of the rotary driving member 131; the casing 13 The electromagnetic unit is fixedly arranged on the peripheral wall of the drilling member 11 along the axis of the drilling member 11, and the casing 134 surrounds the sealing member 12; the electromagnetic unit is fixedly arranged on the peripheral wall of the casing 134 along the axis of the casing 134, and multiple groups of electromagnetic units are provided. The electromagnetic units of different groups are evenly arranged on the inner wall of the casing 134 along the axis of the casing 134. Each group of electromagnetic units includes a plurality of electromagnetic plates 133, and the plurality of electromagnetic plates 133 are evenly fixedly arranged on the inner wall of the casing 134 around the axis of the casing 134.

[0065] The first locking device 14 includes a first locking groove 141, a first locking block 142, a first sliding groove, and an annular groove 143. The annular groove 143 is provided at the upper part of the drilling member 11 along the axis of the drilling member 11. The first sliding groove is provided on the inner ring side wall of the annular groove 143 along the radial direction of the annular groove 143. The first locking block 142 is slidably arranged in the first sliding groove along the extension direction of the first sliding groove. The first locking groove 141 is provided on the inner ring side wall of the plug-in ring 1311. The first locking groove 141 is engaged with the first locking block 142. The plug-in The ring 1311 and the annular groove 143 are plugged together along the axis of the drilling member 11. When the drilling unit 1 is in the drilling mode, the first locking block 142 is plugged together with the first locking groove 141, and the sealing member 12 blocks the first gap of the drilling member 11; when the drilling unit 1 is switched to the sampling mode, the first locking block 142 slides out of the first locking groove 141, and the first locking block 142 is driven by hydraulic pressure, and the first locking block 142 no longer plugs into the plug-in ring 1311, thereby unlocking the drilling member 11 and the sealing member 12. The electromagnetic units are energized in sequence from bottom to top along the axis of the drilling head. An induction coil is arranged between the electromagnetic plates 133 in each group of electromagnetic units. When the rotating driving member 131 on the upper part of the seal 12 passes through the induction coil at the corresponding height, the induction coil can sense the rotating driving member 131, and then the electromagnetic unit at the height is powered off. After the power is off, the electromagnetic unit above the electromagnetic unit is immediately energized, so that the seal 12 can be attracted to slide along the extension direction of the first gap. When the seal 12 rises to one side of the uppermost electromagnetic unit, the electromagnetic unit at the uppermost side The electromagnetic plates 133 in the unit are energized in sequence around the axis of the drilling member 11, so that the magnetic block 132 arranged on the rotating drive member 131 rotates around the axis of the drilling member 11 under the attraction of the electromagnetic plates 133 that are energized in sequence. When the rotation is completed, the third locking device 15 locks the drilling member 11 on the extension rod 111. At this time, the first gap on the drilling member 11 and the second gap on the sealing member 12 overlap and communicate with each other: if it is necessary to switch the drilling unit 1 from the sampling mode to the drilling mode, just run the above steps in reverse.

[0066] Reference Figure 7 :The electromagnetic plates 133 in the uppermost electromagnetic unit are energized sequentially around the axis of the seal 12. When the rotary drive member 131 reaches the uppermost electromagnetic unit position, the electromagnetic plates 133 in the electromagnetic unit are energized sequentially. It is worth noting that the number of electromagnetic plates 133 is in multiple relation with the number of magnetic blocks 132 arranged on the rotary drive member 131, and the number of electromagnetic plates 133 is at least twice the number of the rotary drive members 131. Taking the example that the number of electromagnetic plates 133 is twice the number of the rotary drive members 131, the electromagnetic plates 133 are divided into two groups, and the two groups of electromagnetic plates 133 are energized sequentially, so that the rotary drive member 131 can rotate.

[0067] Reference Figure 6 and Figure 8 The exploration device further comprises a second locking device 3, which is arranged on the extension rod 111 and locks the sampling unit 2 moving along the axis of the drilling member 11. Specifically, when sampling is required, the second locking device 3 is used to lock the sampling unit 2 moving along the axis of the drilling member 11 and the rotating driving member 131.

[0068] The second locking device 3 includes a second locking groove, a second locking block 31 and a second sliding groove. The sampling unit 2 includes a collecting device 21. The collecting device 21 includes a collecting box 211. The collecting box 211 is an annular structure. The second locking groove is arranged on the inner ring side wall of the collecting box 211 along the radial direction of the collecting box 211. The second sliding groove is arranged on the side wall of the extension rod 111 along the radial direction of the extension rod 111. The second locking block 31 is slidably arranged in the second sliding groove along the extension direction of the second sliding groove. The second locking block 31 is engaged with the second locking groove. Before the drilling unit 1 switches from the drilling mode to the sampling mode, the second locking device 3 needs to lock the sampling unit 2. An electromagnet is arranged at the bottom of the sampling unit 2. After the drilling unit 1 switches to the sampling mode, the sealing member 12 rises along the axis of the drilling member 11 to At the highest point, the electromagnet at the bottom of the sampling unit 2 is energized, and the sampling unit 2 is adsorbed on the rotating drive member 131 on the top of the seal 12. At the same time, the second locking block 31 slides out of the second locking groove, so that the sampling unit 2 can be synchronously lowered with the rotating drive member 131. This is because when the drilling unit 1 switches from the sampling mode to the drilling mode, during the resetting process of the seal 12, the soil layer sample in the second gap on the seal 12 will be squeezed upward by the drilling member 11, and the sampling unit 2 that descends synchronously with the seal 12 can collect the soil layer sample. When the seal 12 completely blocks the first gap, the soil layer samples at the second gap on the seal 12 also all enter the sampling unit 2, and then the electromagnet at the bottom of the sampling unit 2 is de-energized, and the sampling unit 2 rises along the axis of the drilling member 11, and the sampling is completed.

[0069] Reference Figure 7 : The drilling unit 1 also includes a third locking device 15, which is arranged on the plug-in ring 1311. After the second locking device 3 locks the sampling unit 2, the third locking device 15 is triggered by the bottom of the sampling unit 2. The triggered third locking device 15 fixes the plug-in ring 1311 on the extension rod 111, thereby fixing the position of the sealing member 12 relative to the drilling member 11. At this time, the extension direction of the first gap completely coincides with the extension direction of the second gap, and the first gap is in an open state.

[0070] The third locking device 15 includes a third locking groove, a trigger block 152, a spring 153, a trigger groove 154 and an extension plate 155. A plurality of third locking grooves are provided. The third locking grooves are evenly arranged on the side wall of the extension rod 111 around the axis of the extension rod 111. The trigger groove 154 is in an "L"-shaped structure. The trigger groove 154 is arranged on the plug-in ring 1311. The trigger groove 154 is composed of a vertical groove and a horizontal groove. The vertical groove extends from the upper part of the plug-in ring 1311, and the horizontal groove extends from the plug-in ring 1311. The inner ring side wall of the ring 1311 extends out, the extension plate 155 is slidably arranged in the vertical groove along the extension direction of the vertical groove, the trigger block 152 is slidably arranged in the vertical groove along the axis of the drilling member 11, and there is a gap between the trigger block 152 and the extension plate 155. The spring 153 is arranged in the gap along the sliding direction of the trigger block 152. The two ends of the spring 153 are fixedly connected to the trigger block 152 and the extension plate 155 respectively. Hydraulic oil is stored in the trigger groove 154. The third locking block 151 is arranged along the horizontal groove. The third locking block 151 can be engaged with the third locking groove. When the first driving device 13 drives the sealing member 12 to rise to the highest point and the first gap and the second gap have not overlapped, the trigger block 152 is pressed by the bottom of the sampling unit 2. The trigger block 152 slides into the vertical groove under the pressure of the sampling unit 2. The gap between the trigger block 152 and the extension plate 155 is reduced, resulting in the compression of the spring 153. The reaction force of the spring 153 acts On the hydraulic oil, the hydraulic oil in the trigger groove 154 generates a thrust on the third locking block 151. When the first driving device 13 drives the rotating driving member 131 to rotate around the axis of the drilling member 11, the third locking block 151 gradually approaches the third locking groove. After the first gap and the second gap are completely overlapped, the third locking block 151 and the third locking groove are completely engaged. At this time, when the driving mechanism drives the drilling member 11 to rotate through the extension rod 111, the sealing member 12 and the drilling member 11 can rotate synchronously.

[0071] Reference Figure 1 and Figure 4 : The sampling unit 2 includes a collecting device 21 and a lifting device 22; the collecting device 21 is annular in structure, and the collecting device 21 is slidably arranged on the periphery of the extension rod 111 along the axis of the extension rod 111, and the collecting device 21 is used to collect soil samples; the lifting device 22 is arranged on the upper part of the collecting device 21, and the lifting device 22 drives the collecting device 21 to move along the axis of the extension rod 111.

[0072] The lifting device 22 includes a connecting rope 221, a winder 222 and a follower ring 223. The connecting rope 221 is fixedly arranged at the upper part of the collecting device 21 along the extension direction of the extension rod 111. The winder 222 is arranged at the upper part of the borehole. The connecting rope 221 is wound around the winder 222. The winder 222 winds up the connecting rope 221. The follower ring 223 is arranged at the upper part of the borehole along the axis of the borehole. The follower ring 223 receives the winder 222. Under the action of the winder 222 on the connecting rope 221, the collecting device 21 can be freely lifted and lowered in the borehole along the axis of the drilling unit 1.

[0073] Reference Figure 4 , Figure 5 , Fig.10 and Fig.11 : The collecting device 21 includes a collecting box 211, a bottom sealing device 212 and a collecting groove 213; the collecting box 211 is an annular structure, an opening is provided at the upper part of the collecting box 211, and the collecting shell is slidably arranged on the periphery of the extending rod 111 along the axis of the extending rod 111; there are multiple collecting grooves 213, and the collecting grooves 213 pass through the bottom of the collecting box 211 along the axis of the collecting box 211, and the collecting grooves 213 are evenly arranged around the axis of the collecting box 211; the bottom sealing device 212 is arranged in the collecting box 211, and the lower part of the bottom sealing device 212 extends to the bottom of the collecting box 211, and the bottom sealing device 212 can open or close the collecting grooves 213.

[0074] After the drilling unit 1 is switched to the sampling mode, the collecting groove 213 corresponds to the second gap one by one, the bottom sealing device 212 includes a bottom sealing plate 2121 and a second driving device, the bottom sealing plate 2121 is an annular structure, and a through groove is arranged on the bottom sealing plate 2121, and the size and shape of the through groove are the same as the size and shape of the collecting groove 213, the second driving device includes a first rotary driver 2122, a gear 2123, a gear ring 2124 and a connecting sleeve 2125, the connecting sleeve 2125 is fixedly arranged on the upper part of the sealing plate along the axis of the sealing plate, the inner ring wall of the connecting sleeve 2125 is slidably matched with the side wall of the extension rod 111 along the axis of the extension rod 111, the gear ring 2124 is fixedly arranged on the top of the connecting sleeve 2125 along the axis of the connecting sleeve 2125, and the gear 2123 is arranged along the axis of the gear ring 2124. It is arranged on one side of the gear ring 2124, the gear 2123 and the gear ring 2124 are meshed with each other, and the first rotation driver 2122 is arranged on the upper part of the gear 2123. The first rotation driver 2122 drives the gear ring 2124 to rotate through the gear 2123. The first rotation driver 2122 is preferably a servo motor. When the collecting tank 213 needs to be opened or closed, it is only necessary to start the first rotation driver 2122, and the gear 2123 is driven to rotate by the first rotation driver 2122, and then the gear ring 2124 drives the connecting sleeve 2125 to rotate, and finally the sealing plate is rotated. When the through groove on the sealing plate coincides with the collecting tank 213, the collecting tank 213 is in an open state, and when the through groove on the sealing plate does not coincide with the collecting tank 213, the collecting tank 213 is in a sealed state.

[0075] Reference Figure 5 and Fig.11 The sampling unit 2 further comprises a synchronizing device 23 , which is disposed at the bottom of the collecting device 21 , and the collecting device 21 rotates synchronously with the sealing member 12 via the synchronizing device 23 .

[0076] The synchronization device 23 includes a synchronization block 231 and a synchronization groove. The synchronization block 231 is a spring structure. The synchronization block 231 is arranged on the top of the rotating drive member 131. The synchronization groove is opened at the bottom of the collecting box 211. The synchronization block 231 is plugged into the synchronization groove. When the seal 12 is driven by the first driving device 13 to make the first gap and the second gap coincide, the synchronization block 231 is snapped into the synchronization groove. It is worth noting that when the seal 12 has just completed its ascent, the first gap and the second gap do not coincide. At this time, the synchronization block 231 is squeezed by the bottom of the collecting box 211 and is in a retracted state. When the first driving device 13 drives the seal 12 and the rotating drive member 131 to rotate around the axis of the drilling member 11, the synchronization block 231 is aligned with the synchronization groove, and the synchronization block 231 can be snapped into the synchronization groove.

[0077] The present invention also provides a method for rock and soil geological exploration of a pumped storage power station, comprising the following steps:

[0078] Step 1, select a site to be surveyed, put the drilling unit 1 in a vertical state, and work in a drilling mode. At this time, the sealing member 12 seals the first gap on the drilling member 11; the driving mechanism drives the drilling unit 1 to rotate and drill the soil layer in a vertical direction, and the drilling unit 1 forms a borehole at the site to be surveyed;

[0079] Step 2: When the drilling unit 1 reaches the soil layer at a specified depth, the drilling unit 1 switches the mode from the drilling mode to the sampling mode and performs sampling. The specific method is as follows:

[0080] The first driving device 13 drives the sealing member 12 to rotate out of the first slit in the drilling member 11, and at the same time, the first driving device 13 drives the sealing member 12 to rotate around the axis of the drilling member 11, so that the first slit coincides with the second slit, and then the third locking device 15 locks the sealing member 12 on the extension rod 111, so that the sealing member 12 and the drilling member 11 rotate synchronously, and the bottom sealing device 212 in the collecting device 21 opens the collecting groove 213, and the drilling member 11 then continues to drill downward along the depth direction of the borehole; as the drilling unit 1 continues to rotate deeper, the soil layer sample at the bottom of the borehole passes through the drilling unit 1 along the first slit and finally enters the sampling unit 2, and the sampling unit 2 collects the soil layer sample;

[0081] Step 3, when the sampling unit 2 completes the collection, the drilling unit 1 switches from the sampling mode to the drilling mode. The specific method is: the bottom sealing device 212 seals the collection tank 213, the lifting device 22 drives the collection device 21 to rise, and the drilling unit 1 continues to drill the bottom of the borehole, so that the device can sample while drilling.

[0082] Compared with the prior art, the present invention has the following beneficial effects: the present invention sets a drilling unit and a sampling unit. Before use, the drilling site is selected first, and then the drilling unit is set vertically. The drilling unit is in the drilling mode. At this time, the sealing member seals the first gap on the drilling member. As the drilling unit continuously descends in the vertical direction, a borehole is formed at the drilling site. When the drilling unit reaches the designated position, the drilling unit switches to the sampling mode. The first driving device drives the sealing member to rotate out of the first gap in the drilling member. At the same time, the first driving device also drives the sealing member to rotate around the axis of the drilling member after being rotated out, so that The first gap coincides with the second gap, and then the third locking device locks the seal on the extension rod, so that the seal and the drilling member rotate synchronously, and the bottom sealing device in the collecting device opens the collecting slot, and the drilling member then continues to drill downward along the depth direction of the borehole, and the soil layer samples enter the collecting box through the first gap, the second gap and the collecting slot in turn. After the collection is completed, the drilling unit switches to the drilling mode, the bottom sealing device seals the collecting slot, the lifting device drives the collecting device to rise, and the drilling unit continues to drill the bottom of the borehole, so that the device can also take samples while drilling, thereby improving the sampling efficiency.

[0083] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A rock and soil geological exploration device for a pumped storage power station, characterized in that: include: A drilling unit (1) and a sampling unit (2); The drilling unit (1) is a rotating body structure, the bottom of the drilling unit (1) is a drilling end, and a first gap is present on the peripheral wall of the drilling end; the drilling unit (1) has a drilling mode and a sampling mode, when the drilling unit (1) is in the drilling mode, the first gap of the drilling end is sealed, so that the drilling end is in a sealed state; when the drilling unit (1) is in the sampling mode, the first gap of the drilling end is in a non-sealed open state; The sampling unit (2) is arranged above the drilling unit (1) in a movable manner along the axis of the drilling unit (1); when the drilling unit (1) is in a sampling mode, a soil layer sample enters the sampling unit (2) from the first gap to achieve sampling; after sampling is completed, the drilling unit (1) switches to a drilling mode, and at the same time, the sampling unit (2) rises along the axis of the drilling unit (1); Wherein, the drilling unit (1) comprises a drilling component (11), a sealing component (12) and a first driving device (13); The drilling member (11) is a rotating body structure, the drilling member (11) is arranged in a drill hole, and a plurality of first slits are arranged on the peripheral wall of the drilling member (11); each of the first slits is arranged around the axis of the drilling member (11); and the first slits are spiral-shaped; An extension rod (111) is fixedly arranged on the upper part of the drilling member (11) along the axis of the drilling member (11); The sealing member (12) is a spiral structure, the sealing member (12) is provided with a second slit, the second slit is a spiral structure, the sealing member (12) is slidably arranged in the first slit along the extension direction of the first slit, and the sealing member (12) is threadedly matched with the first slit of the drilling member (11); The first driving device (13) is arranged on the upper part of the sealing member (12), and the first driving device (13) drives the sealing member (12) to move in the first gap to close or open the first gap; The first driving device (13) comprises a rotating driving member (131); the rotating driving member (131) is fixedly arranged on the upper part of the sealing member (12) along the axis of the sealing member (12); and a plug-in ring (1311) is fixedly arranged on the lower part of the rotating driving member (131) along the axis of the rotating driving member (131); The drilling unit (1) further comprises a first locking device (14), wherein the first locking device (14) is arranged between the drilling member (11) and the sealing member (12); when the drilling unit (1) is in a drilling mode and the sealing member (12) is located in a first gap of the drilling member (11), the first locking device (14) locks the drilling member (11) and the sealing member (12); when the drilling unit (1) is switched from the drilling mode to the sampling mode, the first driving device (13) simultaneously drives the first locking device (14) to operate, so that the first locking device (14) is unlocked; The first locking device (14) comprises a first locking groove (141), a first locking block (142), a first sliding groove and an annular groove (143); The annular groove (143) is provided on the upper part of the drilling member (11) along the axis of the drilling member (11); the first sliding groove is provided on the inner ring side wall of the annular groove (143) along the radial direction of the annular groove (143); the first locking block (142) is slidably arranged in the first sliding groove along the extension direction of the first sliding groove; the first locking groove (141) is provided on the inner ring side wall of the plug-in ring (1311); the first locking groove (141) is engaged with the first locking block (142); the plug-in ring (1311) and the annular groove (141) are engaged with each other; 3) plug-in and fit along the axis of the drilling member (11); when the drilling unit (1) is in the drilling mode, the first locking block (142) is engaged with the first locking groove (141), and the sealing member (12) blocks the first gap of the drilling member (11); when the drilling unit (1) is switched to the sampling mode, the first locking block (142) slides out of the first locking groove (141), and the first locking block (142) no longer engages the plug-in ring (1311), thereby achieving unlocking between the drilling member (11) and the sealing member (12); The sampling unit (2) comprises a collecting device (21) and a lifting device (22); The collecting device (21) is an annular structure. The collecting device (21) is slidably arranged on the periphery of the extension rod (111) along the axis of the extension rod (111). The collecting device (21) is used to collect soil layer samples. The lifting device (22) is arranged on the upper part of the collecting device (21). The lifting device (22) drives the collecting device (21) to move along the axis of the extension rod (111). The collecting device (21) comprises a collecting box (211), a bottom sealing device (212) and a collecting tank (213); The collecting box (211) is an annular structure, an upper portion of the collecting box (211) is provided with an opening, and the collecting box (211) is slidably arranged on the periphery of the extending rod (111) along the axis of the extending rod (111); A plurality of the collecting grooves (213) are provided, and the collecting grooves (213) are opened along the axis of the collecting box (211) and penetrate the bottom of the collecting box (211), and the collecting grooves (213) are evenly arranged around the axis of the collecting box (211); The bottom sealing device (212) is arranged in the collection box (211), the lower part of the bottom sealing device (212) extends to the bottom of the collection box (211), and the bottom sealing device (212) can open or close the collection slot (213).

2. A rock and soil geological exploration device for a pumped storage power station according to claim 1, characterized in that: The first driving device (13) further comprises a magnetic block (132), an electromagnetic unit and a casing (134); The magnetic blocks (132) correspond to the sealing members (12) one by one, and the magnetic blocks (132) are evenly arranged on the peripheral wall of the rotating driving member (131) around the axis of the rotating driving member (131); The casing (134) is fixedly arranged on the peripheral wall of the drilling member (11) along the axis of the drilling member (11), and the casing (134) surrounds the sealing member (12); The electromagnetic unit is fixedly arranged on the peripheral wall of the casing (134) along the axis of the casing (134); the electromagnetic unit is provided in multiple groups; the electromagnetic units of different groups are evenly arranged on the inner wall of the casing (134) along the axis of the casing (134); each group of the electromagnetic units includes a plurality of electromagnetic plates (133); the plurality of electromagnetic plates (133) are evenly fixedly arranged on the inner wall of the casing (134) around the axis of the casing (134); the electromagnetic plates (133) in the uppermost electromagnetic unit are energized in sequence around the axis of the sealing member (12).

3. A rock and soil geological exploration device for a pumped storage power station according to claim 2, characterized in that: The rock and soil geological exploration device for a pumped storage power station further comprises a second locking device (3) and a third locking device (15); The second locking device (3) is arranged on the extension rod (111), and when sampling is required, the second locking device (3) is used to lock the sampling unit (2) and the rotating driving member (131) moving along the axis of the drilling member (11); The third locking device (15) is arranged on the plug-in ring (1311). After the second locking device (3) locks the sampling unit (2), the third locking device (15) is triggered by the bottom of the sampling unit (2). After being triggered, the third locking device (15) fixes the plug-in ring (1311) on the extension rod (111), thereby achieving the fixing of the position of the sealing member (12) relative to the drilling member (11). At this time, the extension direction of the first gap completely coincides with the extension direction of the second gap, and the first gap is in an open state.

4. A rock and soil geological exploration device for a pumped storage power station according to claim 1, characterized in that: The sampling unit (2) further comprises a synchronization device (23); the synchronization device (23) is arranged at the bottom of the collecting device (21), and the collecting device (21) rotates synchronously with the sealing element (12) through the synchronization device (23).

5. A method for a rock and soil geological exploration device for a pumped storage power station according to claim 3, characterized in that: The following steps are involved: Step 1, selecting a location to be investigated, placing the drilling unit (1) in a vertical state, and operating the drilling unit (1) in a drilling mode, wherein the sealing member (12) seals a first gap on the drilling member (11); the drilling unit (1) is rotated under the drive of a driving mechanism and the drilling unit (1) drills the soil layer in a vertical direction, and the drilling unit (1) forms a borehole at the location to be investigated; Step 2: When the drilling unit (1) reaches the soil layer at a specified depth, the drilling unit (1) switches the mode from the drilling mode to the sampling mode and performs sampling. The specific method is as follows: The first driving device (13) drives the sealing member (12) to rotate out of the first slit in the drilling member (11), and at the same time, the first driving device (13) drives the sealing member (12) to rotate around the axis of the drilling member (11), so that the first slit and the second slit overlap, and then the third locking device (15) locks the sealing member (12) on the extension rod (111), so that the sealing member (12) and the drilling member (11) rotate synchronously, and the bottom sealing device (212) in the collecting device (21) opens the collecting groove (213), and the drilling member (11) then continues to drill downward along the depth direction of the borehole; as the drilling unit (1) continues to rotate deeper, the soil layer sample at the bottom of the borehole passes through the drilling unit (1) along the first slit and finally enters the sampling unit (2), and the sampling unit (2) collects the soil layer sample; Step 3, when the sampling unit (2) completes the collection, the drilling unit (1) switches from the sampling mode to the drilling mode. The specific method is as follows: the bottom sealing device (212) seals the collection tank (213), the lifting device (22) drives the collection device (21) to rise, and the drilling unit (1) continues to drill the bottom of the borehole, so that the device can sample while drilling.

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