Deep geothermal drilling device suitable for complex geological environments

Abstract

SOLUTION: A deep geothermal drilling device includes a mounting seat. A slot is drilled in the mounting seat. A first slide rail, to which a slidable slide base is attached, is fixedly connected to an 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 an upper end of the telescopic member. A drive member is attached to a lower side of the carrier plate. A drill rod is connected to a lower end of the drive member. A drill is fixedly connected to the lower end of the drill rod. The drill and drill rod can pass through the slot. The mounting seat further includes a second slide rail slidably connected to the mounting seat. The second slide rail is disposed intersecting the first slide rail. An elastic insert is provided in the carrier plate. When the carrier plate is lowered, a lower end of the elastic insert can be inserted into the ground.EFFECT: The present invention exerts a limiting effect on a mounting seat and a slide base.SELECTED DRAWING: Figure 1

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 projects combining geothermal heating and wind power generation, it is necessary to investigate the geological conditions on the site through field drilling, in-situ testing, soil testing, and geological surveys, etc., to conduct a geological evaluation of the site and provide geological information for the placement of geothermal heating and wind power generation units, substations, etc. Therefore, a deep geothermal drilling rig suitable for complex geological environments is required to conduct soundings on the site's topography and geomorphology, the type and characteristics of their formation causes, and the type, material composition, layer structure, and distribution rules of the sedimentary strata.

[0003] When studying the material composition, layer structure, and distribution rules of a geological environment, it is usually necessary to excavate at multiple locations to make the sounding structure more accurate. However, with conventional drilling equipment, drilling can only be performed at a location where drilling is desired after it has been firmly fixed. When drilling at a different location, the drilling rotation must first be released before the location can be changed, which results in low drilling efficiency. Summary of the Invention [Problem to be solved by the invention]

[0004] 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 existing in 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, the mounting seat having a slot, a first slide rail fixedly connected to an upper side of the mounting seat and a slidable slide base attached thereto, a vertically extending telescopic member fixedly connected to the slide base, a carrier plate fixedly connected to an upper end of the telescopic member, a driving member attached to an underside of the carrier plate, a drill rod connected to a lower end of the driving member, and a drill fixedly connected to a lower end of the drill rod, so that 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 intersecting the first slide rail, and the carrier plate having an elastic insert so that the lower end of the elastic insert can be inserted into the ground when the carrier plate is lowered.

[0006] As a preferred means of the present invention, in the elastic insert, a first insertion hole is drilled 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 second insertion holes are drilled at equal intervals in the mounting seat, and 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 seat 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 posts are provided on a columnar member whose length is adjustable, and the slide locking grooves are 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 fixed rod, and a collar fitted onto the drill rod is fixedly connected between the fixed rods.

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

[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 fixedly connected to the second rotating shaft, a first rolling member connected to the lower surface of the cylinder and tightly fitted to the upper end of the drill, and a second rolling member connected to the outer surface of the side wall of the cylinder and tightly fitted to the inner wall of the storage chamber. [Effects of the Invention]

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

[0014] In this invention, before drilling, the second slide rail is firmly fixed to the ground (either the surface ground or the ground at the bottom of the drill hole), and the mounting seat is adjusted to the required position. The driving member rotates the drill rod, shortening the telescopic member and driving the drill rod downward with the carrier plate to drill. If a change of position is required, the drill rod can be moved upward to remove it from the soil, and the mounting seat can be slid along the first slide rail. In this way, the position of the mounting seat can be adjusted and drilling can be resumed. The slide base can then move along the first slide rail, thereby moving the drill rod in a different direction. For example, the first slide rail and the second slide rail can be perpendicular to each other. During drilling, the carrier plate descends, allowing the lower end of the elastic insert to be inserted into the ground, thereby providing a limiting effect for the mounting seat and the slide base. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a schematic diagram of the three-dimensional structure of a deep geothermal drilling rig suitable for complex geological environments provided in an embodiment of the present invention. [Figure 2] 2 is a schematic diagram of an enlarged structure of part A in FIG. 1 provided in an embodiment of the present invention. [Figure 3] 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] 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; FIG. [Figure 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. [Figure 6] 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 INVENTION

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

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

[0018] Referring to Figure 1, the deep geothermal drilling equipment suitable for complex geological environments provided in an embodiment of the present invention includes a mounting base 1, a slot 2 formed 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 slot 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, the lower end of the elastic insert can be inserted into the ground.

[0020] With this installation, before drilling, the second slide rail 10 is firmly fixed to the ground (either the surface ground or the ground at the bottom of the drill hole), and the mounting base 1 is adjusted to the required position. The driving member 7 rotates the drill rod 8, shortening the telescopic member 5 and driving the drill rod 8 downward by the carrier plate 6 to drill. If a change of position is required, the drill rod 8 can be moved upward away from the soil, and the mounting base 1 can be slid along the first slide rail 3. In this way, the position of the mounting base 1 can be adjusted and drilling can be resumed. The slide base 4 can then move along the first slide rail 3, thereby moving the drill rod 8 in a different direction. For example, the first slide rail 3 and the second slide rail 10 can be perpendicular to each other. During drilling, the carrier plate 6 descends, allowing the lower end of the elastic insert to be inserted into the ground, thereby providing a limiting effect for the mounting base 1 and the slide base 4.

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

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

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

[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 special soil nail. To do this, holes must be drilled in the soil beforehand, the soil nails inserted into the holes, and the fixing force must be increased with backfill material.

[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. The mounting seat 1 is formed with several second insertion holes 14 at equal intervals, 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. 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 down by the carrier plate 6, and both the guide bar 16 and the second spring 17 are slidably inserted into the guide groove 15. 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 through the second insertion hole 14, thereby exerting a limiting 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 limiting the lifting and lowering of the carrier plate 6.

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

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

[0031] Preferably, the connecting post 102 is mounted on a columnar member with an adjustable length, such as an insertion rod and a concentric tube. The insertion rod is slidably inserted into the concentric tube and secured with a locking screw. Multiple sets of slide locking grooves are provided, allowing the mounting base 1 to be first removed from the rail and then reattached to the rail when the length of the connecting post is changed. This allows the distance the drill rod travels along the first slide rail to be adjusted, thereby expanding the drilling range. Furthermore, the second slide rail 10 and mounting base 1 can be easily removed and transported.

[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 rotary shaft 72 rotatably connected to the carrier plate 6 is fixedly connected to the output end of the first motor 71, and a drive disc 73 fixedly connected to the upper end of the first rotary shaft 72 is fixedly connected to the lower end of the first rotary shaft 72. The drive disc 73 and the upper end of the drill rod 8 can be removed, allowing one or more sections of the drill rod to be added, thereby improving 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 interfere with the drilling of the drill rod 8. When sample collection is required, the soil sample can be transported to a storage member by rotating the screw blade 24 in the forward direction. With this arrangement, the sample collection depth and sample collection amount 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 second motor 22 is controlled to be turned on and off by remote control.

[0037] 4 to 6, the storage member includes a cylinder 25 having several ring-shaped storage grooves 26 arranged at equal intervals 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, thereby allowing the first bevel gear 28 and the second bevel gear 29 to be accurately aligned. In practice, the rotation ratio between the first bevel gear 28 and the second bevel gear 29 can be controlled to ensure that the soil sample falls 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 all the soil samples sent in these four times will fall into the same storage groove 26. Note that the rotation ratio between the first bevel gear 28 and the second bevel gear 29 and the number of storage grooves 26 can both be set as needed, and detailed descriptions thereof will be omitted here.

[0039] The working principle of the present invention: Before drilling, the second slide rail must be fixed to the ground, either at the surface or at the bottom of the drill hole. Then, the mounting seat is adjusted to the required drilling position. The drill rod is driven by the driving member to rotate, the telescopic member shortens, 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 from the soil, the mounting seat can be slid along the first slide rail, its position can be adjusted, and drilling can be resumed. The slide base can also be moved along the first slide rail to move the drill rod in a different direction. For example, the first and second slide rails can be perpendicular to each other.

[0041] When the carrier plate is lowered during excavation, the lower end of the elastic insert is inserted into the ground, acting as a limiter to ensure the stability of the mounting seat and slide base. This design allows for easy adjustment of the excavation position while providing flexibility and stability.

[0042] It should be noted that, in this specification, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another and do not necessarily require or imply that such an actual relationship or order exists between those entities or operations. And the terms "comprise," "include," or any other variation thereof are intended to cover a non-exclusive "comprise," 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 that are inherent in 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...fixing 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 complex geological environments includes a mounting seat (1), the mounting seat (1) having a slot (2), a first slide rail (3) having a slidable slide base (4) fixedly connected to an upper side of the mounting seat (1), a vertically extending telescopic member (5) fixedly connected to the slide base (4), a carrier plate (6) fixedly connected to an upper end of the telescopic member (5), a drive member (7) attached to a lower side of the carrier plate (6), a drill rod (8) connected to a lower end of the drive member (7), and a drill (9) fixedly connected to a lower end of the drill rod (8), the drill (9) and the drill rod (8) being able to pass through the slot (2); The mounting seat (1) further includes a second slide rail (10) slidably connected thereto, 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) is lowered, the lower end of the elastic insert can be inserted into the ground. A deep geothermal drilling rig suitable for complex geological environments, characterized by:

2. In the elastic insert, The slide base (4) has a first insertion hole (11), 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). The mounting seat (1) has several second insertion holes (14) provided at equal intervals, 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) is It comprises two parallel rails (101) whose ends are fixed by connecting posts (102), A slide locking 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 equipment suitable for complex geological environments according to claim 3.

5. 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).

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 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 disc (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.

7. 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).

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

8. The storage member comprises a cylinder (25) having a number of 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 close 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). The deep geothermal drilling equipment suitable for complex geological environments according to claim 7.

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