A geotechnical engineering core drilling device

Abstract

This application discloses a core drilling device for geotechnical engineering, belonging to the field of geotechnical engineering technology. The core drilling device includes a core drilling machine and a sampling component mounted on the core drilling machine. Several casters are evenly distributed at the lower end of the core drilling machine, and several leveling mechanisms are symmetrically distributed on the core drilling machine. The leveling mechanism includes a first connecting seat fixedly mounted on the core drilling machine, and a support arm is mounted on the first connecting seat. Four sets of adjustable calibration feet, together with a level, achieve rapid leveling. The positioning nail anchoring design enhances the stability of the equipment, adapts to the needs of complex terrain operations, improves the sampling accuracy of the equipment, and increases the sampling efficiency of the drilling. The slider on the fixed seat is aligned with the limiting hole opened on the support arm and inserted to keep the support arm fixed. The locking of the limiting hole and the slider prevents the displacement of components during transportation, improves the safety of equipment movement, and can reduce the space occupied by the support arm.

Description

Technical Field

[0001] This application relates to the field of geotechnical engineering technology, specifically a geotechnical engineering core drilling device. Background Technology

[0002] In geotechnical engineering, core drilling is a common method for soil sampling, widely used in geological exploration, soil analysis, environmental assessment and other fields. Core drilling devices collect samples from underground soil and rock layers using drilling tools, providing important information for subsequent engineering design, soil property analysis and environmental monitoring.

[0003] According to Chinese patent announcement number CN220893835U, an automatic core sampling device for borehole sampling in geotechnical engineering exploration is disclosed. This utility model uses a drive motor on the mounting frame to move a crossbeam up and down, and a drilling motor to drive the drill cylinder through a through hole to sample samples rising from the ground. During the sampling process, air is vented out through a one-way valve to create low pressure inside the drill cylinder, ensuring that the sample does not fall during the sampling process. At the same time, when sampling is needed, gas is injected into the drill cylinder through another one-way valve in conjunction with an air pump to change the pressure inside the drill cylinder, thereby achieving automatic sample extraction. It is convenient and quick to use.

[0004] In this solution, the core drilling machine is mainly supported by support legs in the drilling area. However, on soft or uneven ground, traditional support legs are prone to sinking, causing the entire machine to tilt. This tilting not only causes the drilling to be off-center, affecting the core drilling effect, but may also lead to increased wear on the drilling tools, and in some cases, may even prevent the core drilling task from being completed successfully.

[0005] Therefore, this application provides a geotechnical engineering core drilling device to solve the above-mentioned problems. Utility Model Content

[0006] This application provides a geotechnical engineering core drilling device, which aims to solve the problem mentioned in the background art that the traditional support legs are prone to sinking on soft or uneven ground, causing the entire device to tilt. The tilt of the device not only causes the borehole to deviate, but also affects the core sampling effect.

[0007] To achieve the above objectives, this application provides the following technical solution: a geotechnical engineering drilling and coring device, including a drilling and coring machine and a sampling component installed on the drilling and coring machine, wherein a plurality of universal wheels are equidistantly arranged at the lower end of the drilling and coring machine, and a plurality of leveling mechanisms are symmetrically distributed on the drilling and coring machine.

[0008] The leveling mechanism includes a first connecting seat fixedly installed on the core drilling machine, a support arm on the first connecting seat, a second connecting seat at the end of the support arm away from the first connecting seat, a positioning pin threaded into the second connecting seat, a fixed seat on the core drilling machine, sliders symmetrically distributed on the fixed seat for limiting the support arm, a level on the front of the core drilling machine, and four sets of adjustable calibration feet working in conjunction with the level to achieve rapid leveling. The positioning pin anchoring design enhances the stability of the equipment and adapts to the needs of complex terrain operations.

[0009] Preferably, the support arm is detachably connected to the first connecting seat by a first bolt, and the second connecting seat is detachably connected to the support arm by a second bolt. The bolt connection structure simplifies the assembly and disassembly process of the support arm, allowing for both loosening to adjust the angle of the support arm and tightening to lock the support arm in place.

[0010] Preferably, the support arm has a limiting hole for the slider to be inserted, and the core drilling machine has several calibration blocks evenly distributed for calibrating the support arm. The limiting hole and the slider are locked together to prevent the components from shifting during transportation and improve the safety of equipment movement.

[0011] Preferably, the fixed base has symmetrically distributed second springs for connecting with the slider, the fixed base has symmetrically opened sliding grooves, and the upper end of the slider has a protrusion plate for sliding connection with the sliding groove.

[0012] Preferably, the fixed base has symmetrical through holes, each through hole has a movable block, and each movable block has an anti-detachment block on both sides for sliding connection with the through hole. The slider is movably connected to a limit block, which is adapted to the through hole.

[0013] Preferably, a first spring is fixedly installed inside the slider, and one end of the first spring is fixedly connected to the side of the limiting block away from the movable block.

[0014] This coring device features four adjustable calibration feet that work with a level to achieve rapid leveling. The positioning nail anchoring design enhances the stability of the equipment, adapts to the needs of complex terrain operations, improves the accuracy of equipment sampling, and increases the sampling efficiency of equipment drilling.

[0015] This core-taking device aligns the slider on the fixed base with the limiting hole on the support arm and inserts it to keep the support arm fixed. The limiting hole and the slider are locked together to prevent the components from shifting during transportation, thus improving the safety of equipment movement and reducing the space occupied by the support arm. Attached Figure Description

[0016] Figure 1This is a schematic diagram of a core drilling device for geotechnical engineering.

[0017] Figure 2 A schematic diagram of the structure supporting the boom in its retracted state;

[0018] Figure 3 This is a structural schematic diagram of the cross-section of the fixing seat;

[0019] Figure 4 This is a schematic diagram of the slider's structure;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the slider section.

[0021] In the picture:

[0022] 1. Drilling and coring machine; 11. Calibration block; 2. Sampling assembly; 3. Casters; 4. Leveling mechanism; 41. First connecting seat; 42. Support arm; 421. Limiting hole; 43. Second connecting seat; 44. Positioning pin; 45. First bolt; 46. Second bolt; 47. Fixed seat; 471. Slide groove; 472. Slider; 473. Protruding plate; 474. First spring; 475. Limiting block; 476. Movable block; 477. Second spring; 478. Anti-detachment block; 5. Level. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] This embodiment provides a geotechnical engineering core drilling device, such as... Figure 1-5 As shown, the core sampling device includes a core drilling machine 1 and a sampling component 2 installed on the core drilling machine 1. Several universal wheels 3 are evenly distributed at the lower end of the core drilling machine 1, and several leveling mechanisms 4 are symmetrically distributed on the core drilling machine 1.

[0025] The leveling mechanism 4 includes a first connecting seat 41 fixedly installed on the core drilling machine 1. A support arm 42 is provided on the first connecting seat 41. A second connecting seat 43 is provided at the end of the support arm 42 away from the first connecting seat 41. A positioning pin 44 is threaded into the second connecting seat 43. A fixed seat 47 is installed on the core drilling machine 1. Slider blocks 472 for limiting the support arm 42 are symmetrically distributed on the fixed seat 47. A level 5 is installed on the front of the core drilling machine 1. The support arm 42 is detachably connected to the first connecting seat 41 by a first bolt 45. The second connecting seat 43 is detachably connected to the support arm 42 by a second bolt 46.

[0026] Specifically, the first connecting seat 41, the support arm 42, the second connecting seat 43, and the positioning pin 44 are assembled to form a calibration support. There are four sets of calibration support, and the four sets of calibration support are located at the corners of the core drilling machine 1. The two ends of the support arm 42 are fixed to the first connecting seat 41 and the second connecting seat 43 respectively by the first bolt 45 and the second bolt 46. When encountering uneven ground, the nuts on the first bolt 45 and the second bolt 46 can be loosened in advance, and the tilt angle of the support arm 42 can be manually adjusted. The level 5 on the core drilling machine 1 can be used to adjust the entire core drilling machine 1 to a horizontal state.

[0027] The support arm 42 is provided with a limiting hole 421 for the insertion of the slider 472, and a number of calibration blocks 11 for calibrating the support arm 42 are arranged at equal intervals on the core drilling machine 1.

[0028] More specifically, when the equipment is in standby mode, the staff only needs to adjust the support arm 42 and the second bolt 46 to their original positions, and then align the slider 472 on the fixing seat 47 with the limiting hole 421 on the support arm 42 to fix the support arm 42, thus preventing the support arm 42 from becoming loose or shaking during the transportation of the equipment.

[0029] The fixed base 47 has symmetrically distributed second springs 477 for connecting with the slider 472. The fixed base 47 has symmetrically opened sliding grooves 471. The upper end of the slider 472 is fixedly installed with a protrusion 473 for sliding connection with the sliding groove 471.

[0030] Furthermore, by using the second spring 477 to apply pressure to the slider 472, the slider 472 is prevented from separating due to bumps when it passes through the limiting hole 421. By using the convex plate 473 installed on the slider 472 to cooperate with the slide groove 471, the maximum distance that the slider 472 can move outward can be effectively limited.

[0031] The fixed base 47 has symmetrical through holes, and each through hole is provided with a movable block 476. On both sides of the movable block 476, there are anti-detachment blocks 478 for sliding connection with the through hole. The slider 472 is movably connected with a limit block 475, which is adapted to the through hole.

[0032] It should be noted that the through hole opened on the fixed base 47 is mainly used for the movable block 476 to move outward under the pressure of the limiting block 475, while the anti-detachment block 478 installed on the movable block 476 can effectively prevent the movable block 476 from completely detaching from the fixed base 47.

[0033] A first spring 474 is fixedly installed inside the slider 472, and one end of the first spring 474 is fixedly connected to the side of the limiting block 475 away from the movable block 476.

[0034] It is worth mentioning that the first spring 474 installed inside the slider 472 is mainly used to press the limiting block 475. When the slider 472 goes deeper into the fixed seat 47, the limiting block 475 is moved to the through hole at the same time. The limiting block 475 is inserted into the through hole by the pressure of the first spring 474, thereby forming a locking and fixing, so as to keep the slider 472 in position. When the slider 472 is inserted into the limiting hole 421 later, it is only necessary to press the movable block 476.

[0035] When encountering uneven ground, the nuts on the first bolt 45 and the second bolt 46 can be loosened in advance, and the tilt angle of the support arm 42 can be manually adjusted. The level 5 on the core drilling machine 1 can be used to adjust the entire core drilling machine 1 to a horizontal state. Finally, the positioning pin 44 is inserted into the ground to keep the entire equipment level and fixed. At this time, the staff starts the equipment to drill and sample the ground. After the equipment finishes sampling, the staff only needs to adjust the support arm 42 and the second bolt 46 to their original positions, and then align the slider 472 on the fixing seat 47 with the limiting hole 421 opened on the support arm 42 to fix the support arm 42 and prevent the support arm 42 from being placed randomly and occupying extra space.

[0036] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A core drilling device for geotechnical engineering, comprising a core drilling machine (1) and a sampling component (2) disposed on the core drilling machine (1), wherein a plurality of casters (3) are equidistantly arranged at the lower end of the core drilling machine (1), and a plurality of leveling mechanisms (4) are symmetrically distributed on the core drilling machine (1). characterized in that The leveling mechanism (4) includes a first connecting seat (41) fixedly installed on the core drilling machine (1), a support arm (42) is provided on the first connecting seat (41), a second connecting seat (43) is provided at the end of the support arm (42) away from the first connecting seat (41), a positioning pin (44) is threaded into the second connecting seat (43), a fixed seat (47) is installed on the core drilling machine (1), and sliders (472) for limiting the support arm (42) are symmetrically distributed on the fixed seat (47). A level (5) is installed on the front of the core drilling machine (1).

2. The geotechnical engineering coring device of claim 1, wherein: The support arm (42) is detachably connected to the first connecting seat (41) by a first bolt (45), and the second connecting seat (43) is detachably connected to the support arm (42) by a second bolt (46).

3. The geotechnical engineering core drilling device according to claim 2, characterized in that: The support arm (42) is provided with a limiting hole (421) for the insertion of the slider (472), and the core drilling machine (1) is provided with a number of calibration blocks (11) for calibrating the support arm (42) at equal intervals.

4. The geotechnical engineering core drilling device according to claim 3, characterized in that: The fixed base (47) has symmetrically distributed second springs (477) for connecting with the slider (472). The fixed base (47) has symmetrically opened sliding grooves (471). The upper end of the slider (472) is fixedly installed with a protrusion (473) for sliding connection with the sliding groove (471).

5. The geotechnical engineering core drilling device according to claim 4, characterized in that: The fixed base (47) is symmetrically provided with through holes, and each through hole is provided with a movable block (476). On both sides of the movable block (476) are anti-detachment blocks (478) for sliding connection with the through hole. The slider (472) is movably connected with a limit block (475), and the limit block (475) is adapted to the through hole.

6. The geotechnical engineering core drilling device according to claim 5, characterized in that: A first spring (474) is fixedly installed inside the slider (472), and one end of the first spring (474) is fixedly connected to the side of the limiting block (475) away from the movable block (476).

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