Drilling rig for geological survey

Abstract

The utility model discloses a drilling rig for geological survey, and belongs to the technical field of geological drilling. Comprising a moving seat, a support frame, a sampling cylinder, a sampling cylinder driving assembly and a sampling cylinder mounting assembly, a support frame is arranged on one side of the moving seat; a sampling cylinder driving assembly is arranged on the support frame; a sampling cylinder is arranged on the sampling cylinder driving assembly through a sampling cylinder mounting assembly; the sampling cylinder driving assembly is used for providing power for the sampling cylinder to drill into the ground; the sampling cylinder comprises an outer cylinder body and an inner pushing column; the upper end and the lower end of the outer cylinder are open; the lower end is of a tip spiral bit structure; the inner push column is movably arranged in the outer cylinder, and the upper end of the inner push column extends out of the outer cylinder; a through hole is formed in the position, right opposite to the sampling barrel, of the movable base, and the sampling barrel penetrates through the through hole and is drilled underground. The geological drilling device solves the problem that when an existing geological drilling device samples geology, obtained samples are disordered, and the underground geological hierarchical structure cannot be reflected originally.

Description

Technical Field

[0001] The utility model belongs to the technical field of geological drilling, and in particular relates to a drilling device used for geological measurement. Background Art

[0002] Geological drilling is a technology that obtains underground geological information by drilling holes. Geological drilling is mainly used in mineral exploration, geological surveys, groundwater exploration, environmental geology and other fields. Geological drilling can obtain information about underground rocks, soils, hydrogeology, etc., so as to help people better understand underground geological structures, lithology, stratum thickness, groundwater levels, water quality and other information. The main purpose of geological drilling is to obtain underground rock or soil samples. In order to study information on geological structures, strata, mineral resources, etc.

[0003] Geological drilling mainly uses a drill bit to go deep underground to collect geological samples after drilling. However, the current drilling tool drill bit cannot directly bring out geological samples when it withdraws from the hole, and secondary collection is required after the drill bit withdraws. Some drill bits that can bring out geological samples need to take out geological samples from the sample storage space of the drill bit after the drill bit withdraws. The above two sampling methods will disrupt the original arrangement structure of the samples when taking out the geological samples; they will destroy the hierarchical structure relationship of the geological structure itself, and cannot intuitively reflect the underground geological hierarchical structure; they may cause deviations in the assessment of the underground structure. Utility Model Content

[0004] In order to achieve the above technical purpose, the utility model provides a drilling device for geological measurement; the sampling drill tube used for drilling into the ground to collect samples on the device is set as a hollow structure, and as the sampling drill tube goes deeper into the ground, the underground structure will enter the sampling drill tube according to the original hierarchy; an inner push column is also set in the sampling drill tube; as the sample enters the sampling drill tube, the inner push column gradually moves upward; when the sampling drill tube is withdrawn from the ground and the sample needs to be taken out, it is only necessary to push the inner push column so that the sample is pushed out of the sampling drill tube as it is, and the geological sample pushed out can retain the original geological hierarchical structure as it is. The utility model solves the problem that the current geological drilling device, when sampling the geology, the samples obtained are disrupted and cannot originally reflect the underground geological hierarchical structure.

[0005] In order to achieve the above technical objectives, the utility model is implemented through the following technical solutions:

[0006] A drilling device for geological surveying, comprising: a moving seat, a support frame, a sampling tube, a sampling tube driving assembly, and a sampling tube mounting assembly;

[0007] A support frame is provided on one side of the movable seat;

[0008] The support frame is provided with a sampling tube driving assembly;

[0009] The sampling cylinder driving assembly is provided with a sampling cylinder via a sampling cylinder mounting assembly;

[0010] The sampling tube driving assembly is used to provide power for the sampling tube to drill into the ground;

[0011] The sampling cylinder comprises an outer cylinder body and an inner push column;

[0012] The outer cylinder is hollow inside and has openings at the upper and lower ends; and the lower end is a pointed spiral drill bit structure;

[0013] The inner push column is movably arranged in the outer cylinder, and the upper end of the inner push column extends out of the outer cylinder;

[0014] A through hole is provided on the movable seat opposite to the sampling cylinder, and the sampling cylinder passes through the through hole and is drilled into the ground.

[0015] Preferably, the sampling tube driving assembly comprises: a motor, a lead screw and a moving sleeve;

[0016] The motor is arranged on the moving seat;

[0017] The lower end of the lead screw is arranged on the motor rotor; the upper end of the lead screw is rotatably arranged on the top of the support frame through a rotating shaft sleeve;

[0018] The movable sleeve is movably arranged on the lead screw and keeps threaded engagement with the lead screw.

[0019] Preferably, the sampling cylinder installation assembly comprises: a connecting rod, a cylinder sleeve and a limiting structure;

[0020] One end of the connecting rod is arranged on the side wall of the moving sleeve;

[0021] The other end of the connecting rod is arranged on the cylinder sleeve; the sampling cylinder is detachably arranged in the cylinder sleeve;

[0022] A limiting structure is arranged between the bottom of the cylinder sleeve and the sampling cylinder; the limiting structure is used for the sampling cylinder to move synchronously with the sampling cylinder driving assembly.

[0023] Preferably, the limiting structure comprises: a vertical rod, a screw rod and a clamp;

[0024] The two vertical rods are symmetrically arranged below the sleeve;

[0025] A screw rod is disposed on the vertical rod for transverse movement; the screw rod and the vertical rod are connected by threaded matching;

[0026] The end of the screw rod facing the sampling tube is rotated by the rotating shaft to set a clamp;

[0027] The clamp is configured as a semicircular ring structure.

[0028] Make the clamps on both sides clamped on the side wall of the sampling tube; then rotate the screw in the direction close to the sampling tube; make the clamps on both sides gradually press against the sampling tube; in this way, the tube sleeve can maintain a fixed connection relationship with the sampling tube; the sampling tube can also move up or down under the drive of the lead screw and the movable sleeve.

[0029] Preferably, the sampling tube driving assembly comprises: a motor, a lead screw, a movable sleeve, and a rotating driving assembly;

[0030] A motor is arranged near one side of the support frame;

[0031] The lower end of the lead screw is arranged on the rotor of the motor;

[0032] The upper end of the lead screw is rotatably arranged on the top of the support frame through a rotating shaft sleeve;

[0033] A movable sleeve is movably arranged on the lead screw, and a threaded fit is formed between the movable sleeve and the lead screw;

[0034] The movable sleeve is connected to the cylinder sleeve via a connecting rod;

[0035] The sampling tube is detachably arranged in the tube sleeve;

[0036] A rotation drive assembly is provided on the left side of the sampling cylinder; the rotation drive assembly is used to control the rotation of the sampling cylinder

[0037] A downward movement limiting sleeve is arranged below the cylinder sleeve; the downward movement limiting sleeve is used to keep the sampling cylinder moving up and down following the lead screw and the movable sleeve, and can also rotate under the action of the rotary drive component.

[0038] Preferably, the rotary drive assembly comprises: a motor, a telescopic column, a driving gear, a driven gear and a toothed transmission belt;

[0039] The motor is arranged on a movable seat on the left side of the sampling cylinder;

[0040] A telescopic column is rotatably arranged on the rotor of the motor;

[0041] A driving gear is arranged at the upper end of the telescopic column;

[0042] The driven gear is arranged on the outer wall of the sampling cylinder; and the driven gear is located above the cylinder sleeve;

[0043] A toothed transmission belt is arranged between the driving gear and the driven gear.

[0044] Preferably, the downward limit sleeve is configured as a semicircular plate structure;

[0045] The inner wall of the downward limit sleeve is provided with a groove;

[0046] Ball grooves are provided on both upper and lower sides of the groove; and balls are movably embedded in the ball grooves.

[0047] Preferably, two downward limit sleeves are provided;

[0048] The two downward limit sleeves are arranged on the outer wall of the sampling tube below the tube sleeve;

[0049] When the downward limit sleeve is arranged on the outer wall of the sampling tube, the annular convex edge arranged on the outer wall of the sampling tube is just embedded in the groove of the downward limit sleeve;

[0050] The balls on the inner wall of the downward limiting sleeve are in contact with the outer wall of the sampling tube and can roll on the outer wall of the sampling tube.

[0051] Preferably, bolts are arranged on the outer walls of the downward limit sleeve and the cylinder sleeve; two bolts symmetrically arranged up and down are arranged as a group;

[0052] A plurality of groups of bolts are arranged on the outer walls of the downward limit sleeve and the cylinder sleeve;

[0053] A bolt plate is detachably arranged on each group of bolts; the bolt plate is arranged on the bolts, and the bolt plate is tightened by nuts on the bolts, so that the cylinder sleeve is connected with the downward limit sleeve.

[0054] Preferably, the telescopic column is composed of several sections of columns;

[0055] The upper part of the current section is set as the inner sleeve rod, and the lower part of the current section is set as the outer sleeve rod;

[0056] Two concave side strips are symmetrically provided on the outer wall of the inner sleeve rod;

[0057] The inner wall of the outer rod is symmetrically provided with two convex side edges;

[0058] When the inner sleeve rod is movably arranged in the outer sleeve rod, the convex side edge is just embedded in the concave side strip.

[0059] The beneficial effects of the utility model are:

[0060] The utility model provides a drilling device for geological survey, wherein the interior of a sampling tube on the drilling device is arranged as a hollow structure, and an inner push rod is movably arranged in the sampling tube; the lower end of the sampling tube is arranged as a spiral drill head structure with a pointed end; when the sampling tube drills into the ground, the geological layered structure can be collected into the sampling tube as it is; when the sample enters the sampling tube, the inner push rod is gradually pushed upward by the sample; the sampling tube is detachable, and after the sampling is completed, the sampling tube is taken out, and the inner push rod is pushed, and the geological sample in the sampling tube will be pushed out of the sampling tube as it is; the geological sample taken restores the layered structure of the geology itself to the greatest extent, and provides the most authentic sample reference for geological survey and exploration.

[0061] In addition to being driven downward by the lead screw and the movable sleeve for drilling, the sampling tube can also be driven to rotate by the motor and the gear; by rotating in coordination with the downward drilling force, the sampling tube can be drilled into the ground more easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0063] Figure 1 This is a schematic diagram of the overall structure of the sampling tube of the utility model with a single downward drive;

[0064] Figure 2 It is a schematic diagram of the structural relationship between the lead screw, the movable sleeve and the support frame of the utility model;

[0065] Figure 3 It is a schematic diagram of the clamp-type limiting structure between the tube sleeve and the sampling tube of the utility model;

[0066] Figure 4 It is a schematic diagram of the downward driving and rotating driving structure of the sampling tube of the utility model;

[0067] Figure 5 It is a schematic diagram of the structure of the sampling tube of the utility model;

[0068] Figure 6 It is a schematic diagram of the structure in which a convex edge is arranged on the outer wall of the sampling tube of the utility model;

[0069] Figure 7 It is a schematic diagram of the structure on the inner wall of the downward limit sleeve of the utility model;

[0070] Figure 8 It is a partial enlarged schematic diagram of the utility model; specifically, it is a structural schematic diagram of the connection between the cylinder sleeve and the downward limit sleeve through bolts and bolt plates;

[0071] Fig. 9 It is a schematic diagram of the structure of the inner sleeve rod and the outer sleeve rod on the telescopic column of the utility model, and a schematic diagram of the structure of the concave side strip opened on the outer wall of the inner sleeve rod;

[0072] Fig.10 It is a schematic diagram of the convex side structure arranged on the inner wall of the outer rod of the utility model.

[0073] In the accompanying drawings, the structural names represented by the reference numerals are:

[0074] 1-moving seat, 101-through hole, 2-pushing frame, 3-handle, 4-support frame, 401-rotating shaft sleeve, 5-motor, 6-screw, 7-moving sleeve, 8-connecting rod, 9-cylinder sleeve, 901-vertical rod, 902-screw, 903-clamp, 10-sampling cylinder, 1001-outer cylinder, 1002-inner push column, 1003-convex edge, 11-telescopic column, 1101-inner sleeve rod, 1102-outer rod, 1103-concave side strip, 1104-convex side edge, 12-driving gear, 13-toothed transmission belt, 14-driven gear, 15-downward limit sleeve, 1501-groove, 1502-ball, 1503-bolt, 1504-bolt plate. DETAILED DESCRIPTION

[0075] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0076] Example 1

[0077] A drilling device for geological surveying, comprising: a moving seat 1, a support frame 4, a sampling tube 10, a sampling tube driving assembly, and a sampling tube mounting assembly;

[0078] like Figure 1 As shown, the moving base 1 serves as the moving and supporting structure of the entire drilling device. A pushing frame 2 is provided at the left edge of the moving base 1, and a handle 3 is provided on both sides of the pushing frame 2. The pushing frame 2 and the handle 3 are structures that facilitate the movement of the moving base 1.

[0079] A support frame 4 is centrally arranged at the right edge of the movable seat 1; a sampling tube driving assembly is arranged on the support frame 4, such as Figure 1 As shown, the sampling tube driving assembly in this embodiment includes: a motor 5, a screw 6 and a movable sleeve 7; the motor 5 is arranged close to one side of the support frame 4, and the motor 5 is arranged on the movable seat 1; the lower end of the screw 6 is arranged on the motor rotor; the upper end of the screw 6 is rotatably arranged on the top of the support frame 4 through the rotating shaft sleeve 401, and the screw 6 can rotate under the action of the motor 5; the movable sleeve 7 is arranged on the screw 6, and the movable sleeve 7 is movably arranged on the screw 6 and maintains threaded cooperation with the screw 6; as the screw 6 rotates, the movable sleeve 7 can move up or down on the screw 6.

[0080] The movable sleeve 7 is connected to a sampling cylinder installation assembly, and a sampling cylinder 10 is detachably installed in the sampling cylinder installation assembly;

[0081] The sampling tube installation assembly in this embodiment includes: a connecting rod 8, a tube sleeve 9 and a limiting structure; one end of the connecting rod 8 is arranged on the side wall of the movable sleeve 7; the other end of the connecting rod 8 is arranged on the side wall of the tube sleeve 9; the sampling tube 10 is detachably arranged in the tube sleeve 9; a limiting structure is arranged below the tube sleeve 9 and between the sampling tube 10; the limiting structure is used for the sampling tube 10 to move synchronously with the sampling tube driving assembly. In this way, the movable sleeve 7 moves up and down on the lead screw 6, which can drive the connecting rod 8 and the tube sleeve 9 to move synchronously. Since the limiting structure is arranged between the tube sleeve 9 and the sampling tube 10, the sampling tube 10 also moves synchronously.

[0082] like Figure 3 As shown, the limiting structure in this embodiment includes: a vertical rod 901, a screw rod 902 and a clamp 903; the two vertical rods 901 are symmetrically arranged below the tube sleeve 9; a screw rod 902 is movably arranged on the vertical rod 901 laterally; the screw rod 902 and the vertical rod 901 are connected by threaded cooperation; the clamp 903 is arranged on one end of the screw 902 toward the sampling tube 10 by rotating the rotating shaft; the clamp 903 is arranged as a semicircular ring structure.

[0083] The clamps 903 on both sides of the limiting structure are fitted onto the side walls of the sampling tube 10; then the screw 902 is rotated in the direction close to the sampling tube 10; so that the clamps 903 on both sides gradually press against the sampling tube 10; in this way, the sampling tube 10 can maintain a fixed connection relationship with the tube sleeve 9; the sampling tube 10 can also move up or down under the drive of the screw 6 and the movable sleeve 7.

[0084] like Figure 5 As shown, the sampling tube 10 includes an outer cylinder 1001 and an inner push column 1002; the outer cylinder 1001 is hollow inside, with upper and lower ends opened; and the lower end is a pointed spiral drill structure; the inner push column 1002 is movably arranged in the outer cylinder 1001, and the upper end of the inner push column 1002 extends out of the outer cylinder 1001; Figure 1 A through hole 101 is provided on the movable seat 1 directly opposite to the sampling tube 10 , and the sampling tube 10 passes through the through hole 101 and is drilled into the ground.

[0085] When conducting geological drilling, first pass the sampling tube 10 through the tube sleeve 9 and adjust the sampling tube 10 to a suitable position; then use the clamp 903 on the limiting structure to keep the sampling tube 10 and the tube sleeve 9 fixed; start the motor 5, the motor 5 drives the lead screw 6 to rotate, and the movable sleeve 7 starts to move up and down on the lead screw 6. After the lower end of the sampling tube 10 contacts the ground, the sampling tube 10 drills into the ground under the downward movement of the movable sleeve 7; at the same time, the underground geological sample enters the sampling tube 10, and the geological sample can maintain the original layered structure and enter the sampling tube 10; after the sampling is completed, the motor 5 is reversed to move the movable sleeve 7 upward, driving the sampling tube 10 to gradually withdraw from the underground; after the sampling tube 10 completes withdrawing from the underground, release the clamp 903 of the limiting structure; take out the sampling tube 10, push the inner push column 1002, and use the inner push column 1002 to push out the geological sample in the sampling tube 10; the pushed out geological sample still maintains the original layered structure relationship.

[0086] Example 2

[0087] Based on Example 1, in Example 1, the driving force for the sampling tube 10 to drill into the ground is a downward force provided by the motor 5, the screw 6 and the movable sleeve 7; under this downward pressure, the sampling tube 10 cooperates with the pointed spiral drill bit structure at the lower end of the sampling tube 10 itself to drill into the ground; but if the geology is hard, such a single downward pressure may make drilling difficult.

[0088] like Figure 4 As shown, in this embodiment, in addition to retaining the pressure effect of the lead screw 6 and the movable sleeve 7 in the embodiment 1, a rotation drive component for rotating the sampling cylinder 10 itself is added;

[0089] First, as in Example 1, a support frame 4 is centrally disposed at the right edge of the mobile seat 1; a sampling tube driving assembly is disposed on the support frame 4, such as Figure 1 As shown, the sampling tube driving assembly in this embodiment includes: a motor 5, a screw 6 and a movable sleeve 7; the motor 5 is arranged close to one side of the support frame 4, and the motor 5 is arranged on the movable seat 1; the lower end of the screw 6 is arranged on the motor rotor; the upper end of the screw 6 is rotatably arranged on the top of the support frame 4 through the rotating shaft sleeve 401, and the screw 6 can rotate under the action of the motor 5; the movable sleeve 7 is arranged on the screw 6, and the movable sleeve 7 is movably arranged on the screw 6 and maintains threaded cooperation with the screw 6; as the screw 6 rotates, the movable sleeve 7 can move up or down on the screw 6.

[0090] The movable sleeve 7 is connected to a sampling cylinder installation assembly, and a sampling cylinder 10 is detachably installed in the sampling cylinder installation assembly;

[0091] The sampling cylinder installation assembly in this embodiment includes: a connecting rod 8, a cylinder sleeve 9 and a limiting structure; one end of the connecting rod 8 is arranged on the side wall of the movable sleeve 7; the other end of the connecting rod 8 is arranged on the side wall of the cylinder sleeve 9; the sampling cylinder 10 is detachably arranged in the cylinder sleeve 9; a limiting structure is arranged between the bottom of the cylinder sleeve 9 and the sampling cylinder 10; a rotating drive assembly is arranged on the left side of the sampling cylinder 10; the rotating drive assembly is used to control the rotation of the sampling cylinder 10.

[0092] The rotary drive assembly in this embodiment includes: a motor 5, a telescopic column 11, a driving gear 12, a driven gear 14 and a toothed transmission belt 13; the motor 5 is arranged on the mobile seat 1 on the left side of the sampling tube 10; the telescopic column 11 is rotatably arranged on the rotor of the motor 5; the driving gear 12 is arranged on the upper end of the telescopic column 11; Figure 5 The driven gear 14 is arranged on the outer wall of the sampling tube 10. The driven gear 14 is located above the tube sleeve 9; a toothed transmission belt 13 is arranged between the driving gear 12 and the driven gear 14. The two motors 5 rotate simultaneously, one of which is responsible for the movement of the moving sleeve 7 and drives the sampling tube 10 to move downward, as in the first embodiment; the other motor 5 drives the telescopic column 11 to rotate, the telescopic column 11 drives the driving gear 12 to rotate, and the driving gear 12 drives the driven gear 14 to rotate under the action of the toothed transmission belt 13; the driven gear 14 drives the sampling tube 10 to rotate.

[0093] Since the sampling tube 10 needs to move downward and rotate at the same time, a limiting structure is also required between the sampling tube 10 and the tube sleeve 9 to keep the two relatively fixed without hindering the rotation of the sampling tube.

[0094] like Figure 7 As shown, in this embodiment, the limiting structure is set as a downward limiting sleeve 15, and the downward limiting sleeve 15 is set as a semicircular plate structure; a groove 1501 is opened on the inner wall of the downward limiting sleeve 15; ball grooves are opened on the upper and lower sides of the groove 1501, and the ball grooves are also opened on the inner wall of the downward limiting sleeve 15; a ball 1502 is movably embedded in the ball groove.

[0095] Two downward limit sleeves 15 are provided; the two downward limit sleeves 15 are provided on the outer wall of the sampling tube 10 below the tube sleeve 9; when the downward limit sleeve 15 is provided on the outer wall of the sampling tube 10, the annular convex edge 1003 provided on the outer wall of the sampling tube 10 just fits into the groove 1501 of the downward limit sleeve 15; the ball 1502 on the inner wall of the downward limit sleeve 15 contacts the outer wall of the sampling tube 10 and can roll on the outer wall of the sampling tube 10. The downward limit sleeve 15 must be connected and fixed to the tube sleeve 9; as Figure 8As shown, bolts 1503 are arranged on the outer walls of the downward limit sleeve 15 and the tube sleeve 9; two bolts 1503 symmetrically arranged in an upper and lower direction are arranged as a group; a plurality of groups of the bolts 1503 are arranged on the outer walls of the downward limit sleeve 15 and the tube sleeve 9; a bolt plate 1504 is detachably arranged on each group of bolts 1503; the bolt plate 1504 is arranged on the bolt 1503, and the bolt plate 1504 is tightened by using the nut on the bolt 1503, so as to connect the tube sleeve 9 with the downward limit sleeve 15.

[0096] The downward limit sleeve 15 allows the sampling tube 10 to move synchronously with the tube sleeve 9 on the one hand, and does not hinder the rotation of the sampling tube 10 on the other hand. The ball 1502 can also assist the sampling tube 10 in reducing friction during rotation, making the rotation smoother.

[0097] The telescopic column 11 needs to transmit rotation to the driving gear 12 and also needs to passively follow the sampling tube 10 to synchronously descend or ascend.

[0098] So, if Fig. 9 and Fig.10 , the telescopic column 11 is composed of a plurality of column sections;

[0099] The upper part of the current segment is set as the inner sleeve rod 1101, and the lower part of the current segment is set as the outer sleeve rod 1102; in fact, it can be understood that the current segment is the outer sleeve rod 1102 of the upper segment and the inner sleeve rod 1101 of the lower segment;

[0100] Two concave side strips 1103 are symmetrically formed on the outer wall of the inner sleeve rod 1101; two convex side edges 1104 are symmetrically formed on the inner wall of the outer sleeve rod 1102; when the inner sleeve rod 1101 is movably arranged in the outer sleeve rod 1102, the convex side edges 1104 are just embedded in the concave side strips 1103. In this way, due to the cooperation of the convex side edges 1104 and the concave side strips 1103, each section of the telescopic column 11 can rotate synchronously under the action of the motor 5 without hindering the telescopic effect between the sections.

[0101] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0102] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A drilling device for geological survey, characterized in that: include: Mobile seat, support frame, sampling tube, sampling tube drive assembly, sampling tube installation assembly; A support frame is provided on one side of the movable seat; The sampling tube driving assembly is arranged on the support frame; The sampling cylinder driving assembly is provided with a sampling cylinder via a sampling cylinder mounting assembly; The sampling tube driving assembly is used to provide power for the sampling tube to drill into the ground; The sampling cylinder comprises an outer cylinder body and an inner push column; The outer cylinder is hollow inside and has openings at the upper and lower ends; and the lower end is a pointed spiral drill bit structure; The inner push column is movably arranged in the outer cylinder, and the upper end of the inner push column extends out of the outer cylinder; A through hole is provided on the movable seat opposite to the sampling cylinder, and the sampling cylinder passes through the through hole and is drilled into the ground.

2. A drilling device for geological survey according to claim 1, characterized in that: The sampling tube driving assembly comprises: a motor, a lead screw and a moving sleeve; The motor is arranged on the moving seat; The lower end of the lead screw is arranged on the motor rotor; the upper end of the lead screw is rotatably arranged on the top of the support frame through a rotating shaft sleeve; The movable sleeve is movably arranged on the lead screw and keeps threaded engagement with the lead screw.

3. A drilling device for geological survey according to claim 2, characterized in that: The sampling cylinder installation assembly comprises: a connecting rod, a cylinder sleeve and a limiting structure; One end of the connecting rod is arranged on the side wall of the moving sleeve; The other end of the connecting rod is arranged on the cylinder sleeve; the sampling cylinder is detachably arranged in the cylinder sleeve; A limiting structure is arranged between the bottom of the cylinder sleeve and the sampling cylinder; the limiting structure is used for the sampling cylinder to move synchronously with the sampling cylinder driving assembly.

4. A drilling device for geological survey according to claim 3, characterized in that: The limiting structure includes: a vertical rod, a screw rod and a clamp; The two vertical rods are symmetrically arranged below the sleeve; A screw rod is disposed on the vertical rod for transverse movement; the screw rod and the vertical rod are connected by threaded matching; The end of the screw rod facing the sampling tube is rotated by the rotating shaft to set a clamp; The clamp is configured as a semicircular ring structure.

5. A drilling device for geological survey according to claim 1, characterized in that: The sampling tube driving assembly comprises: a motor, a lead screw, a movable sleeve, and a rotating driving assembly; A motor is arranged near one side of the support frame; The lower end of the lead screw is arranged on the rotor of the motor; The upper end of the lead screw is rotatably arranged on the top of the support frame through a rotating shaft sleeve; A movable sleeve is movably arranged on the lead screw, and a threaded fit is formed between the movable sleeve and the lead screw; The movable sleeve is connected to the cylinder sleeve via a connecting rod; The sampling tube is detachably arranged in the tube sleeve; A rotation drive assembly is provided on the left side of the sampling cylinder; the rotation drive assembly is used to control the rotation of the sampling cylinder A downward movement limiting sleeve is arranged below the cylinder sleeve; the downward movement limiting sleeve is used to keep the sampling cylinder moving up and down following the lead screw and the movable sleeve, and can also rotate under the action of the rotary drive component.

6. A drilling device for geological survey according to claim 5, characterized in that: The rotary drive assembly comprises: a motor, a telescopic column, a driving gear, a driven gear and a toothed transmission belt; The motor is arranged on a movable seat on the left side of the sampling cylinder; A telescopic column is rotatably arranged on the rotor of the motor; A driving gear is arranged at the upper end of the telescopic column; The driven gear is arranged on the outer wall of the sampling cylinder; and the driven gear is located above the cylinder sleeve; A toothed transmission belt is arranged between the driving gear and the driven gear.

7. A drilling device for geological survey according to claim 5, characterized in that: The downward limit sleeve is configured as a semicircular plate structure; The inner wall of the downward limit sleeve is provided with a groove; Ball grooves are provided on both upper and lower sides of the groove; and balls are movably embedded in the ball grooves.

8. A drilling device for geological survey according to claim 7, characterized in that: Two downward limit sleeves are provided; The two downward limit sleeves are arranged on the outer wall of the sampling tube below the tube sleeve; When the downward limit sleeve is arranged on the outer wall of the sampling tube, the annular convex edge arranged on the outer wall of the sampling tube is just embedded in the groove of the downward limit sleeve; The balls on the inner wall of the downward limiting sleeve are in contact with the outer wall of the sampling tube and can roll on the outer wall of the sampling tube.

9. A drilling device for geological survey according to claim 8, characterized in that: Bolts are arranged on the outer walls of the downward limit sleeve and the cylinder sleeve; two bolts symmetrical up and down are arranged as a group; A plurality of groups of bolts are arranged on the outer walls of the downward limit sleeve and the cylinder sleeve; A bolt plate is detachably arranged on each group of bolts; the bolt plate is arranged on the bolts, and the bolt plate is tightened by nuts on the bolts, so that the cylinder sleeve is connected with the downward limit sleeve.

10. A drilling device for geological survey according to claim 6, characterized in that: The telescopic column is composed of several sections of columns; The upper part of the current section is set as the inner sleeve rod, and the lower part of the current section is set as the outer sleeve rod; Two concave side strips are symmetrically provided on the outer wall of the inner sleeve rod; The inner wall of the outer rod is symmetrically provided with two convex side edges; When the inner sleeve rod is movably arranged in the outer sleeve rod, the convex side edge is just embedded in the concave side strip.

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