Deep geothermal drilling rig suitable for complex geological environments

Abstract

The deep geothermal drilling device includes a mounting seat, a slotted hole is formed in the mounting seat, a first slide rail with a slidable slide base attached thereto is fixedly connected to the upper side of the mounting seat, a vertically arranged telescopic member is fixedly connected to the slide base, a carrier plate is fixedly connected to the upper end of the telescopic member, a driving member is attached to the lower side of the carrier plate, a drill rod is connected to the lower end of the driving member, and a drill is fixedly connected to the lower end of the drill rod, so that the drill and the drill rod can pass through the slotted hole. The mounting seat further includes a second slide rail slidably connected to the mounting seat, the second slide rail is disposed crosswise with the first slide rail, and an elastic insert is disposed in the carrier plate, so that the lower end of the elastic insert can be inserted into the ground when the carrier plate is lowered. [Effect] Provides a limiting effect on the mounting seat and slide base.

Description

[Technical field]

[0001] The present invention relates to the field of geological drilling technology, and in particular to a deep geothermal drilling rig suitable for complex geological environments. [Background technology]

[0002] When constructing deep geothermal heating projects and combined geothermal heating and wind power projects, it is necessary to investigate the on-site geological conditions and carry out construction geological evaluation by means of field drilling, in-situ testing, soil testing, geological surveys, etc., to provide construction geological information for the geothermal heating, wind power unit placement, substation, etc. Therefore, a deep geothermal drilling device suitable for complex geological environments is required to sound the on-site topography and landform morphology, the type and characteristics of their formation causes, and the formation cause type, material composition, hierarchical structure, and distribution rules of the sedimentary strata.

[0003] When studying the material composition, hierarchical structure, and distribution rules of the geological environment, it is usually necessary to excavate at multiple locations in order to make the sounding structure more accurate. However, with conventional drilling equipment, it is usually necessary to first fix the location to be excavated firmly before excavating this location, and when it is necessary to excavate at a different location, it is necessary to first release the drilling rotation lock and then change the location, which results in low excavation efficiency. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE PRESENT DISCLOSURE The present invention provides a deep geothermal drilling device suitable for complex geological environments, which has the advantage of being able to quickly change the drilling position, and solves the problems of the prior art. [Means for solving the problem]

[0005] The present invention is realized as follows: A deep geothermal drilling device suitable for complex geological environments includes a mounting seat, in which a slot is opened in the mounting seat, a first slide rail with a slidable slide base attached thereto is fixedly connected to the upper side of the mounting seat, a vertically arranged telescopic member is fixedly connected to the slide base, a carrier plate is fixedly connected to the upper end of the telescopic member, a driving member is attached to the lower side of the carrier plate, a drill rod is connected to the lower end of the driving member, and a drill is fixedly connected to the lower end of the drill rod, and the drill and the drill rod can pass through the slot. The mounting seat further includes a second slide rail slidably connected thereto, the second slide rail is arranged crossing the first slide rail, and an elastic insert is provided on the carrier plate, and when the carrier plate is lowered, the lower end of the elastic insert can be inserted into the ground.

[0006] As a preferred means of the present invention, in the elastic insert, a first insertion hole is opened in the slide base, an insertion rod is inserted into the first insertion hole, and the insertion rod is connected to the slide base by a first spring, several equally spaced second insertion holes are opened in the mounting seat, the insertion rod can be inserted into the ground through one of the second insertion holes, a guide groove is fixedly connected to the upper end of the insertion rod, a guide bar is fixedly connected to the underside of the carrier plate, and a second spring is fixedly connected to the lower end of the guide bar, and both the guide bar and the second spring can be slidably inserted into the guide groove.

[0007] In a preferred embodiment of the present invention, the second slide rail includes two parallel rails whose ends are fixed by connecting posts, and the underside of the mounting base is provided with a slide locking groove that is slidably connected to the rails.

[0008] In a preferred embodiment of the present invention, the connecting post is provided on a columnar member whose length is adjustable, and the slide engaging groove is provided in a plurality of sets.

[0009] In a preferred embodiment of the present invention, the two slide bases are fixedly connected to each other by a fixing rod, between which a collar is fixedly connected, which is fitted onto the drill rod.

[0010] In a preferred embodiment of the present invention, the drive member includes a first motor fixedly connected to an upper side of the carrier plate, a first rotating shaft fixedly connected to an output end of the first motor, the first rotating shaft being rotatably connected to the carrier plate, and a drive disk fixedly connected to a lower end of the first rotating shaft.

[0011] In a preferred means of the present invention, the drill rod and the drill are connected by a screw, a storage chamber is opened at the bottom of the drill rod, a sample collection port communicating with the storage chamber is opened at the side of the drill rod, a second motor is fixedly connected to the side of the storage chamber, a second rotating shaft is fixedly connected to the output end of the second motor, a screw blade extending to the sample collection port is fixedly connected to the end of the second rotating shaft, and a storage member is provided below the screw blade.

[0012] In a preferred embodiment of the present invention, the storage member includes a cylinder having several equally spaced ring-shaped storage grooves formed therein, a drive rod having a first bevel gear fixedly connected to its upper end at the axial center of the cylinder, a second bevel gear meshing with the first bevel gear is fixedly connected to a second rotating shaft, a first rolling member is connected to the lower surface of the cylinder and is in close contact with the upper end of the drill, and a second rolling member is connected to the outer surface of the side wall of the cylinder and is in close contact with the inner wall of the storage chamber. Effect of the Invention

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] In the present invention, before drilling, the second slide rail is fixed firmly to the ground (the ground at the surface of the earth or the ground at the bottom of the drill hole), the mounting seat is adjusted to the position required for drilling, and the drill rod is rotated by the driving member, the telescopic member is shortened, and the drill rod is driven by the carrier plate to drill downward. If the position needs to be changed, the drill rod can be moved upward away from the soil, and then the mounting seat can be slid along the first slide rail, and in this manner, the position of the mounting seat can be adjusted and drilling can be performed again. And the slide base can be moved along the first slide rail, so that the drill rod moves in another direction. For example, the first slide rail and the second slide rail can be perpendicular to each other. And during drilling, the carrier plate is lowered so that the lower end of the elastic insert can be inserted into the ground, thereby exerting a limiting effect on the mounting seat and the slide base. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a schematic diagram of the three-dimensional structure of a deep geothermal drilling device suitable for complex geological environments provided in an embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic diagram of an enlarged structure of part A in FIG. 1 provided in an embodiment of the present invention. [Diagram 3] FIG. 2 is a schematic diagram of an enlarged structure of part B in FIG. 1 provided in an embodiment of the present invention. [Figure 4] FIG. 1 is a schematic diagram of the front structure of a deep geothermal drilling device suitable for complex geological environments provided in an embodiment of the present invention. [Diagram 5] 5 is a schematic diagram of a cross-sectional structure of a CC portion in FIG. 4 provided in an embodiment of the present invention. FIG. [Figure 6] FIG. 6 is a schematic diagram of an enlarged structure of part D in FIG. 5 provided in an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] In order to make the contents, features and effects of the present invention more comprehensible, the present invention will be described in detail below with reference to the following embodiments and accompanying drawings.

[0017] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0018] Referring to FIG. 1, the deep geothermal drilling equipment suitable for complex geological environments provided in the embodiment of the present invention includes a mounting base 1, a groove hole 2 is drilled in the mounting base 1, a first slide rail 3 having a slidable slide base 4 attached thereto is fixedly connected to the upper side of the mounting base 1, a vertically arranged telescopic member 5 is fixedly connected to the slide base 4, a carrier plate 6 is fixedly connected to the upper end of the telescopic member 5, a driving member 7 is attached to the lower side of the carrier plate 6, a drill rod 8 is connected to the lower end of the driving member 7, and a drill 9 is fixedly connected to the lower end of the drill rod 8, and the drill 9 and the drill rod 8 can pass through the groove hole 2.

[0019] The mounting seat 1 further includes a second slide rail 10 slidably connected thereto, and the second slide rail 10 is disposed so as to intersect with the first slide rail 3. The carrier plate 6 is provided with an elastic insert, and when the carrier plate 6 is lowered, a lower end of the elastic insert can be inserted into the ground.

[0020] With this installation, before drilling, the second slide rail 10 is fixed firmly to the ground (the ground at the surface of the earth or the ground at the bottom of the drill hole), the mounting seat 1 is adjusted to the position required for drilling, the drill rod 8 is rotated by the driving member 7, the telescopic member 5 is shortened, and the drill rod 8 is driven by the carrier plate 6 to drill downward. If the position needs to be changed, the drill rod 8 can be moved upward away from the soil, and then the mounting seat 1 can be slid along the first slide rail 3, and in this manner, the position of the mounting seat 1 can be adjusted and drilling can be performed again. Then, the slide base 4 can be moved along the first slide rail 3, so that the drill rod 8 moves in another direction. For example, the first slide rail 3 and the second slide rail 10 can be perpendicular to each other. And, during drilling, the carrier plate 6 is lowered so that the lower end of the elastic insert can be inserted into the ground, thereby exerting a limiting effect on the mounting seat 1 and the slide base 4.

[0021] The first slide rail 3 may be provided in a straight line or in an arc, or may be customized to a required shape as necessary. The slide base 4 may be provided as a self-propelled slide base, and the mounting seat 1 may be provided as a self-propelled slide base, or, of course, both may be provided as manually adjustable slide bases.

[0022] The second slide rail 10 can be fixed firmly to the ground in the following manner.

[0023] Anchoring: The second slide rail 10 is firmly fixed to the soil using anchors. This includes burying or driving the anchors around the base in advance, and then connecting the second slide rail 10 and the anchors by means of bolts, welding, or the like.

[0024] Fixing the foundation bolts: Drill holes at the four corners of the second slide rail 10 and insert the foundation bolts. Then, tighten the foundation bolts using nuts and washers to fix the second slide rail 10 to the soil.

[0025] Soil nail fixing: The second slide rail 10 is fixed to the soil using a dedicated soil nail. To do this, it is necessary to pre-drill holes in the soil, insert the soil nail into the hole, and then use backfill material to increase the fixing force.

[0026] Referring to FIG. 2, in the elastic insert, a first insertion hole 11 is formed in the slide base 4, an insertion rod 12 is inserted into the first insertion hole 11, and the insertion rod 12 is connected to the slide base 4 by a first spring 13, several second insertion holes 14 are formed at equal intervals in the mounting seat 1, and the insertion rod 12 can be inserted into the ground through one of the second insertion holes 14, a guide groove 15 is fixedly connected to the upper end of the insertion rod 12, a guide bar 16 is fixedly connected to the underside of the carrier plate 6, and a second spring 17 is fixedly connected to the lower end of the guide bar 16, and both the guide bar 16 and the second spring 17 can be slidably inserted into the guide groove 15.

[0027] With this installation, during excavation, the guide bar 16 is driven by the carrier plate 6 to descend, and both the guide bar 16 and the second spring 17 are slidably inserted into the guide groove 15, and the guide bar 16 presses the insertion rod 12 downward via the second spring 17, and the insertion rod 12 compresses the first spring 13 and is further inserted into the ground via the second insertion hole 14, thereby exerting a limit effect on the mounting seat 1. When the carrier plate 6 rises, the insertion rod 12 can be reset by being driven by the first spring 13.

[0028] The guide bar 16 is slidably inserted into the guide groove 15, thereby making it possible to limit the elevation of the carrier plate 6.

[0029] Referring to FIG. 1, the second slide rail 10 includes two parallel rails 101 whose ends are fixed by connecting posts 102, and a slide locking groove is provided on the underside of the mounting base 1 which is slidably connected to the rails 101.

[0030] Normally, for stable use, both the end and middle parts of the rail 101 need to be connected with the connecting posts 102, but providing the connecting posts 102 in the middle part of the rail 101 would affect excavation (at least the soil below the connecting posts in the middle part cannot be excavated). In this installation, since an elastic insert is provided, the elastic insert can have a stabilizing effect on both the mounting base 1 and the second slide rail 10 during excavation, so the connecting posts 102 may be provided only on the end parts of the rail 101.

[0031] Preferably, the connecting post 102 is provided on a columnar member whose length can be adjusted, for example, one insert rod and one concentric tube, and the insert rod is slidably inserted into the concentric tube and fixed by a lock screw. The slide locking groove is provided in a plurality of sets, and the mounting seat 1 can be first removed from the rail and then reattached to the rail when changing the length of the connecting post. This installation allows the distance that the drill rod moves along the first slide rail to be adjusted, thereby expanding the drilling range. In addition, the second slide rail 10 and the mounting seat 1 can be easily removed and carried.

[0032] Referring to FIG. 3, the two slide bases 4 are fixedly connected to each other by a fixed rod 18, and a collar 19 fitted onto the drill rod 8 is fixedly connected between the fixed rods 18.

[0033] 5, the driving member 7 includes a first motor 71 fixedly connected to the upper side of the carrier plate 6, a first rotating shaft 72 rotatably connected to the carrier plate 6 is fixedly connected to an output end of the first motor 71, and a drive disk 73 fixedly connected to an upper end of the drill rod 8 is fixedly connected to a lower end of the first rotating shaft 72. Since the drive disk 73 and the upper end of the drill rod 8 can be removed, it is possible to increase the number of drill rods with one or more sections, thereby improving the drilling depth.

[0034] 4 to 6, the drill rod 8 and the drill 9 are connected by a screw. A storage chamber 20 is opened at the bottom of the drill rod 8, a sample collection port 21 communicating with the storage chamber 20 is opened at the side of the drill rod 8, a second motor 22 is fixedly connected to the side of the storage chamber 20, a second rotating shaft 23 is fixedly connected to the output end of the second motor 22, a screw blade 24 extending to the sample collection port 21 is fixedly connected to the end of the second rotating shaft 23, and a storage member is provided below the screw blade 24.

[0035] With this arrangement, even if the screw blade 24 does not rotate or rotates in the reverse direction when drilling with the drill rod 8, soil will not enter the storage chamber 20, and will not hinder the drilling of the drill rod 8. When sample collection is required, the soil sample can be transported to the storage member by rotating the screw blade 24 in the forward direction. With this arrangement, the depth and amount of sample collection can be controlled, which makes it easy to collect soil samples at different depths and facilitates subsequent analysis.

[0036] In addition, since a battery for supplying power to the second motor 22 is provided in the accommodation chamber 20, there is no need to supply power from an external source, and the on / off of the second motor 22 is controlled by remote control.

[0037] 4 to 6, the storage member includes a cylinder 25 having several equally spaced ring-shaped storage grooves 26 formed therein, a drive rod 27 having a first bevel gear 28 fixedly connected to its upper end is fixedly connected to the axial center of the cylinder 25, a second bevel gear 29 meshing with the first bevel gear 28 is fixedly connected to the second rotating shaft 23, a first rolling member 30 that is in close contact with the upper end of the drill 9 is connected to the lower surface of the cylinder 25, and a second rolling member that is in close contact with the inner wall of the storage chamber 20 is connected to the outer surface of the side wall of the cylinder 25.

[0038] The first rolling member 30 and the second fixing device can limit the position of the cylinder 25, so that the first bevel gear 28 and the second bevel gear 29 can be accurately aligned. In practice, the rotation ratio of the first bevel gear 28 and the second bevel gear 29 can be controlled to control the soil sample to fall into the required storage groove 26. For example, the second bevel gear 29 rotates 20 times, the first bevel gear 28 rotates once, and five storage grooves 26 are provided at equal intervals. When a sample needs to be collected, the screw blade 24 can be rotated four times at a time, and the soil samples sent in these four times will all be in the same storage groove 26. It should be noted that the rotation ratio of the first bevel gear 28 and the second bevel gear 29 and the number of storage grooves 26 can both be set as required, and detailed description is omitted here.

[0039] The working principle of the present invention: Before drilling, the second slide rail needs to be fixed to the ground, and the ground at the surface of the earth or the ground at the bottom of the drill hole can be selected. Then, adjust the position of the mounting seat to the position that needs to be drilled. The drill rod is driven by the driving member to rotate, the telescopic member is shortened, and the drill rod is driven by the carrier plate to drill downward.

[0040] If the drilling position needs to be changed, the drill rod can be lifted out of the soil, then the mounting seat can be slid along the first slide rail to adjust its position and drill again. The slide base can also be moved along the first slide rail to move the drill rod in another direction. For example, the first slide rail and the second slide rail can be perpendicular to each other.

[0041] During excavation, when the carrier plate descends, the lower end of the elastic insert is inserted into the ground to play the role of a limit and ensure the stability of the mounting seat and the slide base. This design makes it easy to adjust the excavation position and provides flexibility and stability.

[0042] It should be noted that, as used herein, relational terms such as, for example, first and second, are used only to distinguish one entity or operation from another and do not require or imply that such actual relationship or order necessarily exists between those entities or operations. And, the terms "comprise", "include", "comprise" or any other variation thereof are intended to cover a non-exclusive "include", such that a process, method, article or device that includes a set of elements not only includes those elements, but also includes other elements not expressly listed or includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the appended claims and their equivalents. [Explanation of symbols]

[0044] 1...mounting seat, 2...slotted hole, 3...first slide rail, 4...slide base, 5...telescopic member, 6...carrier plate, 7...driving member, 71...first motor, 72...first rotating shaft, 73...drive disk, 8...drill rod, 9...drill, 10...second slide rail, 101...rail, 102...connecting post, 11...first insertion hole, 12...insertion rod, 13...first spring, 14...second insertion hole, 15...guide groove, 16...guide bar, 17...second spring, 18...fixed rod, 19...collar, 20...accommodation chamber, 21...sample collection port, 22...second motor, 23...second rotating shaft, 24...screw blade, 25...cylinder, 26...storage groove, 27...driving rod, 28...first bevel gear, 29...second bevel gear, 30...first rolling member.

Claims

1. A deep geothermal drilling device suitable for a complex geological environment, comprising a mounting seat (1), a groove (2) formed in the mounting seat (1), a first slide rail (3) having a slidable slide base (4) attached thereto, fixedly connected to an upper side of the mounting seat (1), a vertically arranged telescopic member (5) fixedly connected to the slide base (4), an upper end of the telescopic member (5) fixedly connected to a carrier plate (6), a lower side of the carrier plate (6) attached to a driving member (7), a lower end of the driving member (7) connected to a drill rod (8), and a lower end of the drill rod (8) fixedly connected to a drill (9), the drill (9) and the drill rod (8) being capable of passing through the groove (2); The mounting seat (1) further includes a second slide rail (10) to which the mounting seat (1) is slidably connected, the second slide rail (10) being disposed so as to intersect with the first slide rail (3); The carrier plate (6) is provided with an elastic insert, and when the carrier plate (6) descends, the lower end of the elastic insert can be inserted into the ground; The drill rod (8) and the drill (9) are connected by a screw; A storage chamber (20) is opened at the bottom of the drill rod (8), a sample collection port (21) communicating with the storage chamber (20) is opened at the side of the drill rod (8), a second motor (22) is fixedly connected to the side of the storage chamber (20), a second rotating shaft (23) is fixedly connected to the output end of the second motor (22), a screw blade (24) extending to the sample collection port (21) is fixedly connected to the end of the second rotating shaft (23), and a storage member is provided below the screw blade (24). The storage member comprises a cylinder (25) having several equally spaced ring-shaped storage grooves (26) formed therein; A drive rod (27) is fixedly connected to the axial center of the cylinder (25), and a first bevel gear (28) is fixedly connected to the upper end of the drive rod (27). A second bevel gear (29) meshing with the first bevel gear (28) is fixedly connected to the second rotating shaft (23), A first rolling member (30) is connected to the lower surface of the cylinder (25) and is in intimate contact with the upper end of the drill (9); A second rolling member is connected to the outer surface of the side wall of the cylinder (25) and is in close contact with the inner wall of the storage chamber (20). A deep geothermal drilling rig suitable for complex geological environments.

2. In the elastic insert, A first insertion hole (11) is formed in the slide base (4), an insertion rod (12) is inserted into the first insertion hole (11), and the insertion rod (12) is connected to the slide base (4) by a first spring (13). Several second insertion holes (14) are formed at equal intervals in the mounting seat (1), and the insertion rod (12) can be inserted into the ground through one of the second insertion holes (14). A guide groove (15) is fixedly connected to the upper end of the insertion rod (12), a guide bar (16) is fixedly connected to the lower side of the carrier plate (6), and a second spring (17) is fixedly connected to the lower end of the guide bar (16), and both the guide bar (16) and the second spring (17) can be slidably inserted into the guide groove (15).

2. The deep geothermal drilling device suitable for complex geological environments according to claim 1.

3. The second slide rail (10) comprises: It comprises two parallel rails (101) whose ends are fixed by connecting posts (102); A slide engagement groove is provided on the underside of the mounting seat (1) to be slidably connected to the rail (101).

2. The deep geothermal drilling device suitable for complex geological environments according to claim 1.

4. The connecting post (102) is provided on a columnar member whose length is adjustable, The slide locking groove is provided in a plurality of sets.

4. The deep geothermal drilling device suitable for complex geological environments according to claim 3.

5. The two slide bases (4) are fixedly connected to each other by a fixing rod (18), and a collar (19) fitted to the drill rod (8) is fixedly connected between the fixing rods (18).

2. The deep geothermal drilling device suitable for complex geological environments according to claim 1.

6. The driving member (7) includes a first motor (71) fixedly connected to an upper side of the carrier plate (6), a first rotating shaft (72) rotatably connected to the carrier plate (6) is fixedly connected to an output end of the first motor (71), and a drive disk (73) fixedly connected to an upper end of the drill rod (8) is fixedly connected to a lower end of the first rotating shaft (72).

2. The deep geothermal drilling device suitable for complex geological environments according to claim 1.

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