Geological survey drilling machine for architectural design

By designing a geological exploration drilling machine for architectural design with segmented soil sampling and precise classification and marking, the problems of soil core sample fracture and disordered soil layer sequence were solved, achieving the integrity and accuracy of soil core testing.

CN120889255BActive Publication Date: 2025-11-25RUGAO LAYOUT CONSTR DESIGN INST
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Patent Information

Application Number
CN202511376679.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-25
Publication Date
2025-11-25
Estimated Expiration
2045-09-25

AI Technical Summary

Technical Problem

Existing geological exploration drilling rigs are prone to causing soil core sample breakage and soil layer sequence disorder during the soil extraction process, which affects the accuracy of testing.

Method used

A geological exploration drilling machine for architectural design was designed, which adopts a soil sampling mechanism with segmented soil sampling and precise classification and marking. The mechanism includes a mobile chassis, a rotating frame, a hydraulic push rod, a soil sampler, and a tilting mechanism. The soil core is extracted in segments and pushed out into the soil sampling cylinder. The segmented extraction and classification and marking of the soil core are achieved by using a push rod frame and a push plate frame.

Benefits of technology

It enables the complete extraction and precise classification of soil cores, improving the accuracy of soil core testing and avoiding problems such as soil core sample breakage and disordered soil layer sequence.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the field of geological exploration equipment, in particular to a geological exploration drilling machine for architectural design. The existing equipment is prone to breakage of the soil core sample and disorder of the soil layer sequence, thereby affecting the detection accuracy. The geological exploration drilling machine for architectural design comprises a mobile chassis, a rotating frame installed on the mobile chassis, a hydraulic push rod fixedly connected to the rotating frame and a downward moving plate fixedly connected to the hydraulic push rod. Movement of the push rod frame drives the five push rods to move the five earth taking barrels, the five push rods of the push rod frame push the five earth taking barrels out of the earth taking device, the staff pushes the soil cores in the five earth taking barrels out of the earth taking barrels and sequentially puts the pushed-out soil cores into the storage box. Since the soil cores can be segmented and taken out, the taken-out soil cores are more complete, and the detection of the soil cores is more accurate.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of geological exploration equipment, and more particularly to a geological exploration drilling machine for architectural design. BACKGROUND

[0002] In the field of construction engineering, the geological exploration drilling machine is a key equipment to ensure the safety of the foundation. The equipment obtains undisturbed soil samples through the soil sampler, and provides basis for foundation design after laboratory testing.

[0003] The existing geological exploration drilling machine obtains soil cores through the soil sampler, and the soil sampler is mainly divided into two types: integral type and detachable type. The integral type needs to knock the pipe wall of the soil sampler to take out the soil core, which is easy to cause the fracture of the soil core sample. The detachable soil sampler is easy to cause the fracture of the soil core sample after taking out the soil core sample and transferring the soil core sample to the soil core storage box, and the fracture of the soil core sample is easy to cause the disorder of the soil layer sequence, which affects the detection accuracy. SUMMARY

[0004] In order to overcome the defects that the existing equipment is easy to cause the fracture of the soil core sample and easy to cause the disorder of the soil layer sequence, which affects the detection accuracy, the technical problem to be solved is to provide a geological exploration drilling machine for architectural design, which can segmentally take out the soil core and more accurately classify and mark the direction of the soil core, so as to make the detection accuracy of the soil core high.

[0005] The technical scheme of the present application is as follows: a geological exploration drilling machine for architectural design, comprising:

[0006] a mobile chassis;

[0007] a rotating frame mounted on the mobile chassis;

[0008] a hydraulic push rod fixed to the rotating frame;

[0009] a downward moving plate fixed to the hydraulic push rod;

[0010] a rotating module fixed to the downward moving plate;

[0011] an unlocking mechanism arranged on the rotating frame;

[0012] a soil taking mechanism arranged in the rotating module.

[0013] Further, the rotating module is composed of a driving motor and a connecting head.

[0014] Further, the unlocking mechanism comprises two electric push rods fixed to the rotating frame, a push rod holder fixed between the telescopic rods of the two electric push rods and provided with five push rods, a pressing frame fixed to the push rod holder and provided with an inclined surface, a protective shell fixed to the rotating frame, and the telescopic rods of the two electric push rods are slidingly connected with the protective shell.

[0015] Further, the soil taking mechanism comprises a soil taking device fixed to the rotating module and provided with five openings, five soil taking barrels clamped in the five openings of the soil taking device, a sliding cap slidingly connected to the soil taking device, two limiting rods slidingly connected to the soil taking device, the two limiting rods being fixed to the sliding cap, and a reset spring fixed between the sliding cap and the soil taking device.

[0016] Further, the soil taking device is provided with five through holes.

[0017] Further, the soil taking mechanism further comprises a turnover mechanism for overturning the soil taking barrels, the turnover mechanism being arranged on the rotating frame, and the turnover mechanism comprising two linear actuators fixed to the rotating frame, a pushing plate fixed between the moving rods of the two linear actuators, five turnover frames slidingly connected to the pushing plate and provided with guide grooves, five spring seats fixed to the five turnover frames, and the five spring seats being rotatably connected to the pushing plate.

[0018] Further, each turnover frame is provided with two outer extension edges and a limiting hole.

[0019] Further, the soil taking mechanism further comprises a pushing mechanism for pushing the soil in the soil taking barrels, the pushing mechanism being arranged on the protective shell, and the pushing mechanism comprising a fixed block fixed to the protective shell, two electric cylinders fixed to the fixed block, a pushing plate frame fixed between the two electric cylinders, five receiving frames fixed to the protective shell, and five clamping rods fixed to the pushing plate frame.

[0020] Further, the pushing plate frame is provided with protrusions with numbers 1, 2, 3, 4 and 5.

[0021] Further, the soil taking mechanism further comprises a cover plate frame slidingly connected to the soil taking device, and the cover plate frame being fixed to the sliding cap.

[0022] Beneficial effects: 1. The pushing rod frame continues to move, so that the five pushing rods are inserted into the five through holes of the soil taking device and come into contact with the five soil taking barrels. The pushing rod frame continues to move, so that the five pushing rods push the five soil taking barrels to move. The five pushing rods of the pushing rod frame push the five soil taking barrels out of the soil taking device. The staff catches the five soil taking barrels and turns off the electric pushing rod. Then the staff pushes the soil cores in the five soil taking barrels out of the soil taking barrels and puts the pushed out soil cores into the receiving boxes one by one. Since the soil cores can be taken out in sections, the taken out soil cores are more complete, so that the detection of the soil cores is more accurate.

[0023] 2, The card rod moves through the limiting hole of the turnover frame first, the push plate frame moves to contact the soil taking cylinder and enters the inside of the soil taking cylinder, the push plate frame and the card rod continue to move, the card rod continues to move into the storage frame, the push plate frame continues to move to contact the soil taking cylinder, and then the push plate frame enters the inside of the soil taking cylinder to push out the soil core in the soil taking cylinder, the soil core pushed out by the push plate frame moves into the storage frame, so that the soil core can be taken out more conveniently, and the number protrusions 1, 2, 3, 4 and 5 on the push plate frame can be printed on the soil core, so that the soil core can be classified and marked more accurately, and the detection accuracy of the soil core is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the application.

[0025] Figure 2 It is a schematic diagram of the partial three-dimensional structure of the application.

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the application.

[0027] Figure 4 It is a schematic diagram of the partial three-dimensional structure of the unlocking mechanism and the turnover mechanism of the application.

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the soil taking mechanism and the turnover mechanism of the application.

[0029] Figure 6 It is a schematic diagram of the sectional three-dimensional structure of the soil taking mechanism of the application.

[0030] Figure 7 It is a schematic diagram of the separated three-dimensional structure of the soil taking mechanism of the application.

[0031] Figure 8 It is a schematic diagram of the partial sectional three-dimensional structure of the soil taking mechanism of the application.

[0032] Figure 9 It is a schematic diagram of the partial three-dimensional structure of the pushing mechanism of the application.

[0033] Figure 10 It is a schematic diagram of the partial sectional three-dimensional structure of the pushing mechanism and the pushing mechanism of the application.

[0034] Figure 11 It is a schematic diagram of the partial three-dimensional structure of the turnover mechanism and the pushing mechanism of the application.

[0035] Reference numerals: 1-Mobile chassis, 2-Rotating frame, 3-Hydraulic push rod, 4-Lowering plate, 5-Rotating module, 61-Electric push rod, 62-Push rod frame, 63-Pressure frame, 64-Protective shell, 71-Soil sampler, 72-Soil sampler cylinder, 73-Sliding cap, 731-Limit rod, 74-Reset spring, 81-Linear actuator, 82-Push plate, 83-Tilting frame, 84-Spring seat, 91-Fixing block, 92-Electric cylinder, 93-Push plate frame, 95-Storage frame, 96-Clamping rod, 11-Cover plate frame. Detailed Implementation

[0036] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0037] Example 1: A geological exploration drilling machine for architectural design, such as Figures 1-8 As shown, it includes:

[0038] Mobile chassis 1;

[0039] A rotating frame 2 is mounted on a mobile chassis 1;

[0040] The hydraulic push rod 3 is bolted to the rotating frame 2;

[0041] The lower plate 4 is bolted to the hydraulic push rod 3;

[0042] The rotating module 5 is bolted to the lower moving plate 4;

[0043] An unlocking mechanism, used to release the lock, is provided on the rotating frame 2;

[0044] The soil sampling mechanism, used to obtain soil cores, is located in the rotating module 5.

[0045] The rotating module 5 consists of a drive motor and a connector.

[0046] The unlocking mechanism includes: two electric push rods 61 bolted to the rotating frame 2; a push rod frame 62 fixed between the telescopic rods of the two electric push rods 61 and provided with five push rods; a pressure frame 63 welded to the push rod frame 62 and provided with an inclined surface; and a protective shell 64 bolted to the rotating frame 2. The telescopic rods of the two electric push rods 61 are slidably connected to the protective shell 64.

[0047] The soil sampling mechanism includes: a soil sampler 71 with five openings that is threadedly connected to the rotating module 5; five soil sampling cylinders 72 that are locked in the five openings of the soil sampler 71, the inner diameter of the soil sampling cylinders 72 being the same as the inner diameter of the soil sampler 71; a sliding cap 73 that is slidably connected to the soil sampler 71; two limiting rods 731 that are slidably connected to the soil sampler 71; the two limiting rods 731 being welded to the sliding cap 73; and a return spring 74 that is fixed between the sliding cap 73 and the soil sampler 71.

[0048] The soil sampler 71 is provided with five through holes.

[0049] At the beginning, the whole device is located above the soil layer which needs to be surveyed, and the rotating frame 2, the electric push rod 61, the push rod frame 62, the pressing frame 63, the protective shell 64, the soil sampler 71, the soil cylinder 72, the sliding cap 73, the limiting rod 731 and the reset spring 74 complete the vertical, the staff starts the hydraulic push rod 3 and the rotating module 5, the rotating module 5 will drive the soil sampler 71, the soil cylinder 72, the sliding cap 73, the limiting rod 731 and the reset spring 74 to rotate, the hydraulic push rod 3 will drive the downward moving plate 4, the rotating module 5, the soil sampler 71, the soil cylinder 72, the sliding cap 73, the limiting rod 731 and the reset spring 74 to move downward, the downward movement of the soil sampler 71 and the soil cylinder 72 will contact with the ground, so that the soil sampler 71 and the soil cylinder 72 rotate synchronously during the continuous penetration into the stratum, so that the soil sampler 71 and the soil cylinder 72 penetrate into the soil, so that the soil enters the soil sampler 71 and the soil cylinder 72 to form a soil core, after the soil sampler 71 and the soil cylinder 72 complete the sampling of the soil, the hydraulic push rod 3 will drive the downward moving plate 4, the rotating module 5, the soil sampler 71, the soil cylinder 72, the sliding cap 73, the limiting rod 731 and the reset spring 74 to reset upward, the soil sampler 71 and the soil cylinder 72 will move the soil core, after the reset is completed, the staff closes the hydraulic push rod 3 and the rotating module 5, after the rotating module 5 is closed, the through hole of the soil sampler 71 is opposite to the push rod frame 62, then the staff starts the electric push rod 61, the telescopic rod of the electric push rod 61 will drive the push rod frame 62 and the pressing frame 63 to move, the movement of the pressing frame 63 will first contact with the sliding cap 73, the continuous movement of the push rod frame 62 and the pressing frame 63 will make the inclined surface of the pressing frame 63 press the sliding cap 73, so that the sliding cap 73 moves downward, the downward movement of the sliding cap 73 will compress the reset spring 74, at the same time, the downward movement of the sliding cap 73 will drive the limiting rod 731 to move downward, the downward movement of the limiting rod 731 will be out of contact with the soil cylinder 72, the continuous movement of the push rod frame 62 will make the five push rods insert into the five through holes of the soil sampler 71 and contact with the five soil cylinders 72, the continuous movement of the push rod frame 62 will make the five push rods push the five soil cylinders 72 to move, the five push rods of the push rod frame 62 will push the five soil cylinders 72 out of the soil sampler 71, the staff will catch the five soil cylinders 72 and close the electric push rod 61, then the staff will push the soil cores in the five soil cylinders 72 out of the soil cylinders 72, and put the pushed out soil cores into the storage box one by one, because the soil cores can be taken out in sections, so that the taken out soil cores are more complete, so that the detection of the soil cores is more accurate, and because the soil sampler 71 does not need to be disassembled, so that the soil cores can be taken out more conveniently, then the staff will clean the residual soil cores in the soil sampler 71 through the five openings of the soil sampler 71, at the same time, the staff will clean the soil cylinder 72, finally the staff starts the electric push rod 61, the telescopic rod of the electric push rod 61 will drive the push rod frame 62 and the pressing frame 63 to reset, after the push rod frame 62 is separated from the push rod frame 62, the staff will close the electric push rod 61,Then the staff will be 5 soil sampling tube 72 re-card into the 5 openings of the soil sampler 71 inside, the staff re-start the electric push rod 61, the telescopic rod of the electric push rod 61 will push rod frame 62 and the pressure frame 63 continue to reset, the pressure frame 63 continue to reset will be out of contact with the sliding cap 73, the sliding cap 73 under the action of reset spring 74 reset upward, the sliding cap 73 reset upward will drive the limit rod 731 reset upward, the limit rod 731 reset upward will be stuck in the soil sampling tube 72, then move the chassis 1 drive the whole device to another location, the soil sampling survey of another location.

[0050] Example 2: on the basis of example 1, as Figures 4-11 shown, also includes a turnover mechanism, the turnover mechanism is used for overturning the soil sampling tube 72, is arranged on the rotating frame 2, the turnover mechanism includes: two linear drives 81 connected by bolt on the rotating frame 2, the push plate 82 fixedly connected between the moving rod of two linear drives 81, 5 overturning frame 83 connected on the push plate 82 and opening guide slot, the overturning frame 83 is used for overturning the soil sampling tube 72, 5 spring seat 84 fixedly connected on 5 overturning frame 83, 5 spring seat 84 and push plate 82 rotationally connected.

[0051] Each overturning frame 83 is provided with two extension edges and a limiting hole.

[0052] Also includes a pushing mechanism, the pushing mechanism is used for pushing the soil in the soil sampling tube 72, is arranged on the protection shell 64, the pushing mechanism includes: the fixed block 91 welded on the protection shell 64, 2 electric cylinders 92 connected by bolt on the fixed block 91, the push plate frame 93 fixedly connected between 2 electric cylinders 92, 5 storage frame 95 welded on the protection shell 64, 5 clamping rod 96 welded on the push plate frame 93.

[0053] Push plate frame 93 has the convex of the numbers 1, 2, 3, 4 and 5.

[0054] After the soil sampler 71 and the soil cylinder 72 complete sampling of the soil, the worker starts the linear actuator 81, the moving rod of the linear actuator 81 drives the push plate 82 to move, the push plate 82 moves to drive the turnover frame 83 to contact the side wall of the soil sampler 71 and the soil cylinder 72 through the spring seat 84, then the worker turns off the linear actuator 81 and starts the electric push rod 61, the electric push rod 61 drives the push rod frame 62 and the pressing frame 63 to move, the pressing frame 63 moves to extrude the sliding cap 73, the limiting rod 731 and the reset spring 74 to move, so that the limiting rod 731 is no longer in contact with the soil cylinder 72, the push rod frame 62 drives the soil cylinder 72 to move, the soil cylinder 72 moves to be clamped between the two extended edges on the turnover frame 83, the push rod frame 62 continues to drive the soil cylinder 72 to move, so that the soil cylinder 72 drives the turnover frame 83 to move, after the turnover frame 83 moves a distance, the turnover frame 83 continues to move to make the guide slot of the turnover frame 83 be extruded by the push plate 82, the turnover frame 83 continues to move to make the turnover frame 83 rotate 90 degrees, the turnover frame 83 rotates 90 degrees to make the limiting hole align with the clamping rod 96, the turnover frame 83 rotates to drive the soil cylinder 72 to rotate 90 degrees, the soil cylinder 72 rotates 90 degrees to make one end of the soil cylinder 72 align with the storage frame 95, the worker turns off the electric push rod 61 and starts the electric cylinder 92, the electric cylinder 92 drives the push plate frame 93 and the clamping rod 96 to move, the clamping rod 96 moves to first pass through the limiting hole of the turnover frame 83, the push plate frame 93 moves to contact the soil cylinder 72 and enter the inside of the soil cylinder 72, the push plate frame 93 and the clamping rod 96 continue to move, the clamping rod 96 continues to move to enter the storage frame 95, the push plate frame 93 continues to move to contact the soil cylinder 72, then the push plate frame 93 enters the inside of the soil cylinder 72 to push the soil core in the soil cylinder 72 out, the soil core pushed out by the push plate frame 93 moves to the storage frame 95, so that the soil core can be more conveniently taken out in sections, at the same time, the number protrusions 1, 2, 3, 4 and 5 on the push plate frame 93 can be printed on the soil core, so that the soil core can be more accurately classified and the direction of the soil core can be marked, thereby further improving the accuracy of the soil core detection, then the electric cylinder 92 drives the push plate frame 93 and the clamping rod 96 to reset, the push plate frame 93 resets to be out of contact with the soil cylinder 72, the clamping rod 96 is out of contact with the storage frame 95, and the clamping rod 96 clamps the push plate frame 93, the worker turns off the electric cylinder 92 and starts the electric push rod 61, the electric push rod 61 drives the push rod frame 62 and the pressing frame 63 to reset, then the worker takes away the soil core on the storage frame 95, the push rod frame 62 resets to be out of contact with the soil cylinder 72, after the push rod frame 62 is out of contact with the soil sampler 71, the worker turns off the electric push rod 61, the worker cleans the soil sampler 71 and the soil cylinder 72, after the soil sampler 71 and the soil cylinder 72 are cleaned, the worker clamps the soil cylinder 72 into the opening of the soil sampler 71, the worker starts the electric push rod 61, the linear actuator 81 and the electric cylinder 92, the electric cylinder 92 drives the push plate frame 93 and the clamping rod 96 to reset, the clamping rod 96 resets to be out of contact with the turnover frame 83,The straight line driver 81 drives the push plate 82 and the spring seat 84 to reset, the push plate 82 resets to press the turnover frame 83 to rotate to reset, the electric push rod 61 drives the push rod frame 62 and the pressing frame 63 to reset, the pressing frame 63 resets to make the sliding cap 73, the limiting rod 731 and the reset spring 74 reset, the limiting rod 731 limits the soil taking cylinder 72.

[0055] In the embodiment 2, the straight line driver 81 drives the push plate 82 and the spring seat 84 to reset, the push plate 82 resets to press the turnover frame 83 to rotate to reset, the electric push rod 61 drives the push rod frame 62 and the pressing frame 63 to reset, the pressing frame 63 resets to make the sliding cap 73, the limiting rod 731 and the reset spring 74 reset, the limiting rod 731 limits the soil taking cylinder 72. Figures 6-7 The embodiment 3 is based on the embodiment 2, as shown in the figure, further comprising a cover frame 11, the cover frame 11 is slidably connected to the soil taking device 71, and the cover frame 11 is welded to the sliding cap 73.

[0056] Initially, the cover frame 11 covers the five through holes of the soil taking device 71, the sliding cap 73 moves to drive the cover frame 11 to move, when the sliding cap 73 moves downward relative to the soil taking device 71, the sliding cap 73 drives the cover frame 11 to move downward, the cover frame 11 moves downward to make the five through holes of the soil taking device 71 open, the sliding cap 73 resets to drive the cover frame 11 to reset, and the cover frame 11 covers the five through holes of the soil taking device 71 again.

[0057] The above is only the preferred embodiment of the present application, it should be noted that for ordinary skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A geological exploration drilling machine for architectural design, characterized in that it comprises: Mobile chassis (1); A rotating frame (2) is mounted on a mobile chassis (1); Hydraulic push rod (3) fixed to the rotating frame (2); The lower plate (4) is fixed to the hydraulic push rod (3); Rotating module (5) fixed on the lower moving plate (4); The unlocking mechanism is located on the rotating frame (2); The soil-boring mechanism is located in the rotating module (5); The unlocking mechanism includes: two electric push rods (61) fixed to the rotating frame (2), a push rod frame (62) fixed between the telescopic rods of the two electric push rods (61) and provided with 5 push rods, a pressure frame (63) fixed to the push rod frame (62) and provided with an inclined surface, a protective shell (64) fixed to the rotating frame (2), and the telescopic rods of the two electric push rods (61) are slidably connected to the protective shell (64); The soil sampling mechanism includes: a soil sampler (71) fixed to the rotating module (5) and having 5 openings; 5 soil sampling cylinders (72) locked in the 5 openings of the soil sampler (71); a sliding cap (73) slidably connected to the soil sampler (71); two limiting rods (731) slidably connected to the soil sampler (71); the two limiting rods (731) are fixedly connected to the sliding cap (73); a return spring (74) is fixedly connected between the sliding cap (73) and the soil sampler (71); the limiting rods 731 will lock the soil sampling cylinders 72; the telescopic rod of the electric push rod 61 will drive the push rod frame 62 and the pressure frame 63 to move; the pressure frame 63 will first contact the sliding cap 73; the push rod frame 62 and the pressure frame 63 will continue to move; the pressure frame 63 will continue to move, causing the inclined surface to squeeze the sliding cap 73, thereby causing the sliding cap 73 to move downward. The soil sampler (71) has 5 through holes. As the push rod frame 62 continues to move, the 5 push rods will be inserted into the 5 through holes of the soil sampler 71 and contact the 5 soil sample tubes 72. As the push rod frame 62 continues to move, the 5 push rods will push the 5 soil sample tubes 72 to move. It also includes a flipping mechanism for flipping the soil sampling cylinder (72), which is mounted on the rotating frame (2). The flipping mechanism includes: two linear actuators (81) fixed to the rotating frame (2), a push plate (82) fixed between the moving rods of the two linear actuators (81), five flipping frames (83) slidably connected to the push plate (82) and having guide grooves, and five spring seats (84) fixed to the five flipping frames (83). The five spring seats (84) are rotatably connected to the push plate (82). It also includes a pushing mechanism, which is used to push the soil in the soil sampling cylinder (72) and is set on the protective shell (64). The pushing mechanism includes: a fixed block (91) fixed on the protective shell (64), two electric cylinders (92) fixed on the fixed block (91), a push plate frame (93) fixed between the two electric cylinders (92), five storage frames (95) fixed on the protective shell (64), and five clamps (96) fixed on the push plate frame (93).

2. A geological exploration drilling machine for architectural design according to claim 1, characterized in that, The rotating module (5) consists of a drive motor and a connector.

3. A geological exploration drilling machine for architectural design according to claim 2, characterized in that, Each flipper (83) has two outer edges and a limiting hole.

4. A geological exploration drilling machine for architectural design according to claim 3, characterized in that, The push plate frame (93) has protrusions with the numbers 1, 2, 3, 4 and 5.

5. A geological exploration drilling machine for architectural design according to claim 4, characterized in that, It also includes a cover plate frame (11), which is slidably connected to the soil sampler (71), and the cover plate frame (11) is fixedly connected to the sliding cap (73).

Citation Information

Patent Citations

  • Geological exploration drilling device and method for geotechnical engineering design

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