Soil layer coring device for geological drilling

Abstract

The invention discloses a geological drilling soil layer coring device, and relates to the technical field of geological exploration, and the technical scheme is that the geological drilling soil layer coring device comprises a support, a driving assembly, a rotating rod, a supporting table and a coring cylinder, a soil sampling column is arranged at the bottom of the coring cylinder, the coring cylinder is fixedly connected with the supporting table, a cutting cavity is formed in the coring cylinder, and the cutting cavity communicates with a rotating cavity; the supporting table is provided with a hexagonal groove, the supporting table is slidably connected with a plurality of movable blocks, the movable blocks are provided with lower protruding blocks and upper protruding blocks, the movable blocks are slidably connected with a rotating cover, the rotating cover is evenly provided with a plurality of movable grooves, the rotating cover is rotatably connected with the supporting table, and the rotating cover is fixedly connected with the rotating rod. The rotating rod is fixedly connected with a conversion assembly, the coring cylinder is provided with a motor, the output end of the motor is connected with the conversion assembly, the driving assembly is connected with a first bevel gear, the first bevel gear is connected with the coring cylinder, and the driving assembly is fixedly connected with the support. The soil sampling device has the effects of guaranteeing soil sampling integrity and fixing the soil sampling device.

Description

Technical Field

[0001] The invention relates to the technical field of geological exploration, and more particularly to a geological drilling soil coring device. Background Art

[0002] At present, in geological surveys, it is often necessary to drill and sample geological soil layers. The usual practice is to use a drill rod to drill directly into the predetermined depth in the stratum. At this time, a part of the soil layer will enter the drill rod. Then the drill rod is taken out, and the soil layer inside it is brought out together, thereby completing the sampling of the soil layer.

[0003] A Chinese invention patent with application number CN202311341228.2 discloses a geological exploration drilling device, including a support frame, a core barrel, a first drive assembly, a reel assembly, a second drive assembly and a flexible cutting assembly. The core barrel, the first drive assembly and the second drive assembly are all arranged on the inner side of the support frame. The first drive assembly is used to drive the core barrel to move up and down, and the second drive assembly is used to drive the core barrel to rotate. The reel assembly is installed on the top of the core barrel, and the middle part of the flexible cutting assembly is annular and fits the inner wall of the core barrel.

[0004] However, the above patent has the following problems:

[0005] 1. The soil layer inside the core barrel is easy to slide during the rising recovery stage;

[0006] 2. The above invention lacks a reliable fixing device and is prone to rollover during the drilling process. In view of this, the inventor proposes a geological drilling soil coring device. Summary of the invention

[0007] The purpose of the present invention is to provide a geological drilling soil coring device to solve the technical problems existing in the prior art.

[0008] The above technical objectives of the present invention are achieved through the following technical solutions: a geological drilling soil coring device, including a bracket, a driving assembly, a rotating rod, a support platform and a coring barrel, a soil sampling column is provided at the bottom of the coring barrel, the coring barrel is fixedly connected to the support platform, a cutting cavity is provided inside the coring barrel near one end of the supporting platform, the cutting cavity is connected to a rotating cavity at one end near the driving assembly, the rotating cavity is connected to a conversion cavity at one end near the driving assembly, a circular groove is formed between the support platform and the inner wall of the coring barrel, a hexagonal groove is provided at one end of the support platform near the cutting cavity, and the support platform is slidably connected to multiple A movable block is provided, a lower protrusion is provided at one end of the movable block close to the hexagonal groove, an upper protrusion is provided at one end of the movable block away from the hexagonal groove, the movable block is slidably connected with a rotating cover, the rotating cover is evenly provided with a plurality of movable grooves, the rotating cover is rotatably connected to the support platform, the rotating cover is fixedly connected to the rotating rod, the rotating rod is fixedly connected with a conversion assembly, a motor is provided at one end of the core barrel close to the driving assembly, a first bevel gear is connected to the output end of the motor, the first bevel gear is connected to the conversion assembly, the output end of the driving assembly is connected to the core barrel, the driving assembly is fixedly connected to the bracket, and supporting feet are provided around the bracket.

[0009] By adopting the above technical solution, the conversion assembly, the rotating rod, the rotating cover and the movable block are driven by a motor to operate, so that the movable block can be closed to cut off the soil sample taken, and at the same time, the soil in the soil column and the external soil layer can be separated, ensuring that the soil layer samples are smoothly brought out from the inside of the formation. Moreover, the closed movable block can provide support for the soil in the curved soil column to prevent it from falling during the ascending process.

[0010] The present invention is further configured as follows: the number of movable blocks is 6, the angles between the movable blocks are 60°, the number of movable grooves is 6, and the angles between the movable grooves are 60°.

[0011] By adopting the above technical solution, 6 movable blocks are set with an angle of 60°, so as to form a complete closed block, which can completely cut off the soil layer sample. An upper protrusion is provided at one end of the movable block away from the hexagonal groove, and the rotating cover can drive the 6 movable blocks through the 6 movable grooves to realize the closing and opening of the 6 movable blocks.

[0012] The present invention is further configured as follows: the conversion assembly includes a second bevel gear, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a fifth connecting rod and a rotating head, the second bevel gear is meshingly connected to the first bevel gear, the second bevel gear is fixedly connected to the first connecting rod, the first connecting rod is fixedly connected to the second connecting rod, the second connecting rod is rotatably connected to the third connecting rod, the third connecting rod is rotatably connected to the fourth connecting rod, the fourth connecting rod is fixedly connected to the rotating rod, the fourth connecting rod is fixedly connected to the fifth connecting rod, the fifth connecting rod is fixedly connected to the rotating head, and the rotating head is rotatably connected to the core barrel.

[0013] By adopting the above technical solution and utilizing the conversion assembly, the rotational power of the motor is converted into power for supporting the reciprocating motion of the rotating rod.

[0014] The present invention is further configured such that a cutting tool is provided at one end of the core barrel away from the driving assembly.

[0015] By adopting the above technical solution and adding cutting tools, it is convenient for the core barrel to penetrate deep into the soil and reach the ideal layer depth.

[0016] The present invention is further configured as follows: the driving assembly includes a lifting motor and a rotating motor, the bracket is fixedly connected to the lifting motor, the output end of the lifting motor is connected to the rotating motor, and the output end of the rotating motor is connected to the core barrel.

[0017] By adopting the above technical solution, the lifting motor provides longitudinal lifting power, and the rotating motor provides rotating power for the core barrel.

[0018] The present invention is further configured to include: a fixing plate and a fixing assembly, wherein the fixing plate is fixedly connected to the supporting legs, and the fixing plate is threadedly connected to the fixing assembly.

[0019] By adopting the above technical solution, a fixing plate and a fixing component are added, and the fixing component can be screwed into the soil by a screw, thereby increasing the stability of the device during drilling and ensuring smooth geological exploration, drilling and soil extraction.

[0020] The present invention is further configured as follows: the fixing assembly includes a fixing piece, a rotating rod, a second movable plug, a connecting piece and a movable door, the fixing piece is threadedly connected to the fixing plate, the interior of the fixing piece is hollow, the rotating rod is threadedly connected to the fixing piece, the rotating rod is fixedly connected to the first movable plug, the first movable plug is slidably connected to the fixing piece, the second movable plug is slidably connected to the fixing piece, the second movable plug is fixedly connected to the connecting piece, a connecting protrusion is provided in the middle of the connecting piece, the connecting piece is slidably connected to the sixth connecting rod, the sixth connecting rod is rotatably connected to the movable door, the connecting piece is fixedly connected to the third movable plug, and a spring is provided at the end of the third movable plug away from the connecting piece.

[0021] By adopting the above technical solution, the rotating rod is used to drive the first movable plug. When the rotating rod rotates upward, the air pressure is reduced, and at the same time the spring provides an upward supporting force to push the third movable plug and the connecting piece to move upward, and open the movable door to the upper side to form a barb structure, thereby increasing the contact area with the soil and enhancing the fixing effect; when the rotating rod rotates downward, the air pressure is compressed to push the second movable plug, driving the connecting piece to move downward, closing the movable door, or opening the movable door downward to reduce the contact area with the soil, thereby facilitating the removal of the fixing component from the soil.

[0022] The present invention is further configured such that: a rotating protrusion is provided at one end of the fixing member close to the fixing plate.

[0023] By adopting the above technical solution, a rotating protrusion is added to the fixing member, which makes it convenient for the staff to rotate the fixing member and to rotate the fixing member into or out of the ground.

[0024] The present invention is further configured as follows: a cross bar is provided at one end of the rotating rod away from the first movable plug.

[0025] By adopting the above technical solution, a cross bar is added to the rotating rod, which makes it convenient for the staff to rotate the rotating rod and control the movable door.

[0026] In summary, the present invention has the following beneficial effects:

[0027] 1. The motor drives the conversion assembly, the rotating rod, the rotating cover and the movable block to operate, so that the movable block can close the soil sampling column, separate the soil in the soil sampling column from the external soil layer, and ensure that the soil layer samples are smoothly taken out from the inside of the stratum. Moreover, the closed movable block can provide support for the soil in the curved soil sampling column to prevent it from falling during the ascent process.

[0028] 2. Use the rotating rod to drive the first movable plug. When the rotating rod rotates upward, the air pressure is reduced. At the same time, the spring provides an upward supporting force to push the third movable plug and the connecting piece to move upward, open the movable door to the upper side, form a barb structure, increase the contact area with the soil, increase the fixing effect, and enhance the overall stability performance; when the rotating rod rotates downward, the air pressure is compressed to push the second movable plug, drive the connecting piece to move downward, close the movable door, or open the movable door downward, reduce the contact area with the soil, and facilitate the removal of the fixed component from the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The three-dimensional structure of the geological drilling soil coring device in the embodiment of the present invention Figure 1 ;

[0030] Figure 2 The three-dimensional structure of the geological drilling soil coring device in the embodiment of the present invention Figure 2 ;

[0031] Figure 3 The geological drilling soil coring device according to the embodiment of the present invention is shown in FIG. Figure 1 ;

[0032] Figure 4 AA cross-sectional view of the geological drilling soil coring device in the embodiment of the present invention;

[0033] Figure 5 The geological drilling soil coring device according to the embodiment of the present invention is shown in FIG. Figure 2 ;

[0034] Figure 6 BB is a cross-sectional view of a geological drilling soil coring device according to an embodiment of the present invention;

[0035] Figure 7 The geological drilling soil coring device according to the embodiment of the present invention is shown in FIG. Figure 3 ;

[0036] Figure 8 2 is a cross-sectional view of a geological drilling soil coring device CC according to an embodiment of the present invention;

[0037] Fig. 9 The geological drilling soil coring device according to the embodiment of the present invention is shown in FIG. Figure 4 ;

[0038] Fig.10 DD is a cross-sectional view of a geological drilling soil coring device according to an embodiment of the present invention;

[0039] Fig.11 The geological drilling soil coring device according to the embodiment of the present invention is shown in FIG. Figure 5 ;

[0040] Fig.12 EE is a cross-sectional view of a geological drilling soil coring device according to an embodiment of the present invention;

[0041] Fig.13 It is a schematic diagram of the structure of the fixed components of the geological drilling soil coring device in an embodiment of the present invention.

[0042] In the figure: 1, bracket; 2, driving assembly; 201, lifting motor; 202, rotating motor; 3, motor; 4, core barrel; 401, conversion chamber; 402, rotating chamber; 403, cutting chamber; 404, rotating cover; 405, movable groove; 406, movable block; 407, upper protrusion; 408, support platform; 409, hexagonal groove; 410, lower protrusion; 411, soil column; 412, circular groove; 5, cutting tool; 6, supporting foot; 7, fixing plate; 8, fixing assembly; 801, fixing piece; 802, rotating rod; 803 , first movable plug; 804, second movable plug; 805, connecting piece; 806, sixth connecting rod; 807, connecting protrusion; 808, movable door; 809, third movable plug; 810, spring; 811, rotating protrusion; 812, cross bar; 813, connecting groove; 9, first bevel gear; 10, conversion assembly; 101, second bevel gear; 102, first connecting rod; 103, second connecting rod; 104, third connecting rod; 105, fourth connecting rod; 106, fifth connecting rod; 107, rotating head; 108, rotating rod. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Example:

[0045] A geological drilling soil coring device, such as Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12As shown, it includes a bracket 1, a driving assembly 2, a rotating rod 108, a support platform 408 and a core barrel 4. A soil column 411 is provided at the bottom of the core barrel 4, and the soil column is circular. A cutting tool 5 is provided at the end of the core barrel 4 away from the driving assembly. The core barrel 4 is fixedly connected to the support platform 408. A cutting cavity 403 is provided at one end of the core barrel 4 near the support platform 408. The end of the cutting cavity 403 near the driving assembly 2 is connected to a rotating cavity 402. The end of the rotating cavity 402 near the driving assembly 2 is connected to a conversion cavity 401. The support platform 408 and the inner wall of the core barrel 4 are spaced to form a circular groove 412. The end of the support platform 408 near the cutting cavity 403 is provided with a hexagonal groove 409. There are 6 movable blocks 406 in sliding connection, and the angle between the movable blocks 406 is 60°. A lower protrusion 410 is provided at one end of the movable block 406 close to the hexagonal groove, and an upper protrusion 407 is provided at the end of the movable block 406 away from the hexagonal groove 409. The movable block 406 is slidably connected with a rotating cover 404, and the rotating cover 404 is evenly provided with 6 movable grooves 405, and the angle between the movable grooves 405 is 60°. The rotating cover 404 is rotatably connected to the support platform 408. When no soil is taken, the 6 movable blocks are tangent to the soil sampling cylinder. When the soil sampling layer is completed, the rotating cover moves through the movable groove to achieve a close fit between the 6 and the movable blocks, complete the truncation of the soil layer, and form a support for the soil sample in the soil sampling column. The rotating cover 408 is fixedly connected to the rotating rod 108, and the rotating rod 108 is fixedly connected to the conversion assembly 10. A motor 3 is provided at one end of the core barrel 4 close to the driving assembly. The output end of the motor 3 is connected to the first bevel gear 9, and the first bevel gear 9 is connected to the conversion assembly 10. The output end of the driving assembly 2 is connected to the core barrel 4. The driving assembly 2 is fixedly connected to the bracket 1. The driving assembly 2 includes a lifting motor 201 and a rotating motor 202. The bracket 1 is fixedly connected to the lifting motor 201, and the output end of the lifting motor 201 is connected to the rotating motor 202. The output end of the rotating motor 202 is connected to the core barrel 4. Support feet 6 are provided around the bracket 1. The fixing plate 7 is fixedly connected to the supporting feet 6, and the fixing plate 7 is threadedly connected to the fixing assembly 8.

[0046] In this embodiment, if Figure 3 , Figure 4As shown, the conversion assembly 10 includes a second bevel gear 101, a first connecting rod 102, a second connecting rod 103, a third connecting rod 104, a fourth connecting rod 105, a fifth connecting rod 106 and a rotating head 107. The second bevel gear 101 is meshedly connected with the first bevel gear 9, the second bevel gear 101 is fixedly connected with the first connecting rod 102, the first connecting rod 102 is fixedly connected with the second connecting rod 103, the second connecting rod 103 is rotatably connected with the third connecting rod 104, the third connecting rod 104 is rotatably connected with the fourth connecting rod 105, the fourth connecting rod 105 is fixedly connected with the rotating rod 108, the fourth connecting rod 105 is fixedly connected with the fifth connecting rod 106, the fifth connecting rod 106 is fixedly connected with the rotating head 107, and the rotating head 107 is rotatably connected with the core barrel 4.

[0047] In this embodiment, if Fig.13 As shown, the fixing assembly 8 includes a fixing member 801, a rotating rod 802, a second movable plug 804, a connecting member 805 and a movable door 808. The fixing member 801 is threadedly connected to the fixing plate 7. The fixing member 801 is hollow inside. The rotating rod 802 is threadedly connected to the fixing member 801. The rotating rod 802 is fixedly connected to the first movable plug 803. The first movable plug 803 is slidably connected. The second movable plug 804 is slidably connected to the fixing member 801. The second movable plug 804 is fixedly connected to the connecting member 805. A connecting protrusion 807 is provided in the middle of the connecting member 805. The connecting member 805 is slidably connected to the sixth connecting rod 806. The sixth connecting rod 806 is rotatably connected to the movable door 808. The connecting member 805 is fixedly connected to the third movable plug 809. A spring 810 is provided at one end of the third movable plug 809 away from the connecting member 805. A rotating protrusion 811 is provided at one end of the fixing member 801 close to the fixing plate. A cross bar 812 is provided at one end of the rotating rod 802 away from the first movable stopper 803 .

[0048] Working principle and usage process:

[0049] When in use, first use the rotating rod to rotate upward to drive the first movable plug to reduce the air pressure, and at the same time the spring provides an upward supporting force to push the third movable plug and the connecting piece to move upward, open the movable door to the upper side, form a barb structure, increase the contact area with the soil, increase the fixing effect, and enhance the overall stability performance; then the driving component provides the power for rotating downward, and when the core barrel reaches the predetermined soil sampling depth, the wireless starting motor drives the conversion component, the rotating rod, the rotating cover, and the movable block to operate. When the movable block is tangent to the soil sampling column, soil sampling can be achieved, and the running motor closes the movable block, which can achieve the connection between the soil in the soil sampling column and the external soil, and the closed movable block can also provide supporting force for the sampled soil; when the soil sampling is completed, the rotating rod is rotated downward to compress the air pressure, push the second movable plug, drive the connecting piece to move downward, close the movable door, or open the movable door downward to reduce the contact area with the soil, so as to facilitate the removal of the fixed component from the soil.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A geological drilling soil coring device, characterized by: The invention comprises a support (1), a driving assembly (2), a rotating rod (108), a support platform (408) and a core barrel (4); a soil sampling column (411) is provided at the bottom of the core barrel (4); the core barrel (4) is fixedly connected to the support platform (408); a cutting cavity (403) is provided inside the core barrel (4) at one end close to the support platform (408); the cutting cavity (403) is connected to a rotating cavity (402) at one end close to the driving assembly (2); the rotating cavity (402) is connected to a conversion cavity (401) at one end close to the driving assembly (2); a circular groove (412) is formed between the support platform (408) and the inner wall of the core barrel (4); a hexagonal groove (409) is provided at one end of the support platform (408) close to the cutting cavity (403); a plurality of movable blocks (406) are slidably connected to the support platform (408); one end of the movable block (406) close to the hexagonal groove (409) A lower protrusion (410) is provided at the end of the movable block (406) away from the hexagonal groove (409) and an upper protrusion (407) is provided. The movable block (406) is slidably connected to a rotating cover (404). The rotating cover (404) is evenly provided with a plurality of movable grooves (405). The rotating cover (404) is rotatably connected to a support platform (408). The rotating cover (404) is fixedly connected to a rotating rod (108). The rotating rod (108) is fixedly connected to a conversion assembly (10). A motor (3) is provided at one end of the core barrel (4) close to the drive assembly (2). The output end of the motor (3) is connected to a first bevel gear (9). The first bevel gear (9) is connected to the conversion assembly (10). The output end of the drive assembly (2) is connected to the core barrel (4). The drive assembly (2) is fixedly connected to the bracket (1). Support legs (6) are provided around the bracket (1).

2. A geological drilling soil coring device according to claim 1, characterized in that: The number of the movable blocks (406) is 6, and the angles between the movable blocks (406) are 60°; the number of the movable grooves (405) is 6, and the angles between the movable grooves (405) are 60°.

3. A geological drilling soil coring device according to claim 1, characterized in that: The conversion assembly (10) comprises a second bevel gear (101), a first connecting rod (102), a second connecting rod (103), a third connecting rod (104), a fourth connecting rod (105), a fifth connecting rod (106) and a rotating head (107); the second bevel gear (101) is meshingly connected with the first bevel gear (9); the second bevel gear (101) is fixedly connected with the first connecting rod (102); the first connecting rod (102) is fixedly connected with the second connecting rod (103); the second connecting rod (103) is rotationally connected with the third connecting rod (104); the third connecting rod (104) is rotationally connected with the fourth connecting rod (105); the fourth connecting rod (105) is fixedly connected with the rotating rod (108); the fourth connecting rod (105) is fixedly connected with the fifth connecting rod (106); the fifth connecting rod (106) is fixedly connected with the rotating head (107); and the rotating head (107) is rotationally connected with the core barrel (4).

4. A geological drilling soil coring device according to claim 1, characterized in that: A cutting tool (5) is provided at one end of the core barrel (4) away from the driving assembly (2).

5. The geological drilling soil coring device according to claim 1, characterized in that: The driving assembly (2) comprises a lifting motor (201) and a rotating motor (202); the bracket (1) is fixedly connected to the lifting motor (201); the output end of the lifting motor (201) is connected to the rotating motor (202); and the output end of the rotating motor (202) is connected to the core barrel (4).

6. A geological drilling soil coring device according to claim 1, characterized in that: It also comprises a fixing plate (7) and a fixing assembly (8), wherein the fixing plate (7) is fixedly connected to the supporting foot (6), and the fixing plate (7) is threadedly connected to the fixing assembly (8).

7. A geological drilling soil coring device according to claim 6, characterized in that: The fixing assembly (8) comprises a fixing member (801), a rotating rod (802), a second movable plug (804), a connecting member (805) and a movable door (808); the fixing member (801) is threadedly connected to the fixing plate (7); the fixing member (801) is hollow inside; the rotating rod (802) is threadedly connected to the fixing member (801); the rotating rod (802) is fixedly connected to the first movable plug (803); the first movable plug (803) is slidably connected to the fixing member (801); and the second movable plug (805) is connected to the fixing member (801). 04) is slidably connected to the fixing member (801), the second movable plug (804) is fixedly connected to the connecting member (805), a connecting protrusion (807) is provided in the middle of the connecting member (805), the connecting member (805) is slidably connected to the sixth connecting rod (806), the sixth connecting rod (806) is rotatably connected to the movable door (808), the connecting member (805) is fixedly connected to the third movable plug (809), and a spring (810) is provided at one end of the third movable plug (809) away from the connecting member (805).

8. A geological drilling soil coring device according to claim 6, characterized in that: A rotating protrusion (811) is provided at one end of the fixing member (801) close to the fixing plate (7).

9. A geological drilling soil coring device according to claim 6, characterized in that: A cross bar (812) is provided at one end of the rotating rod (802) away from the first movable stopper (803).

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