Geotechnical engineering sampling device

Abstract

The utility model relates to a geotechnical engineering sampling device, which belongs to the technical field of geotechnical engineering and comprises a case, a feeding cylinder is fixedly connected to the bottom end of the case, and a top ring is arranged on the outer side of the feeding cylinder. The sampling device has the beneficial effects that the bottom ring can be pushed to be in contact with the ground all the time through the elastic force of the spring, so that the leakage of flying dust in the rock-soil sampling process is reduced, the flying dust can be limited in the inner corrugated pipe, the flying dust inhaled by workers can be reduced, and the working efficiency is improved through the matched use of the inner corrugated pipe and the outer corrugated pipe. The elastic coefficient between the bottom ring and the top ring can be increased, so that the bottom ring and the top ring can be matched with a drill bit to downwards drill into a rock-soil layer for sampling work, and when the drill bit samples into rock-soil, a limiting rod on the outer side of the drill bit can play an important role in supporting and limiting an outer corrugated pipe and an inner corrugated pipe; the bending condition of the outer corrugated pipe and the inner corrugated pipe in the sampling process is avoided, so that the normal operation of the sampling work is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of geotechnical engineering, in particular to a geotechnical engineering sampling device. Background Art

[0002] From the perspective of engineering construction, geotechnical engineering is a general term for any kind of rock and soil that makes up the earth's crust. Geotechnical engineering can be subdivided into five categories: hard (hard rock), semi-hard (soft rock), weakly connected, loosely unconnected, and with special composition, structure, state and properties. Geotechnical sampling, monitoring and analysis are essential steps before various engineering constructions. It mainly involves extracting the original state of the test soil as a sample through the geotechnical sampling assembly to understand the properties of its base layer.

[0003] After searching, a Chinese patent discloses a geotechnical engineering sampling device (authorization announcement number CN212621608U), including a top plate, a movable plate, a bottom plate and a connecting rod. The four corners of the bottom end of the top plate are fixedly connected to support rods, the center of the bottom end of the top plate is fixedly connected to a hydraulic rod, a level bubble is provided at the center of the top of the top plate, and through holes corresponding to the support rods are opened at the four corners of the movable plate. The movable plate is fixedly installed with a motor through a fixed frame, and the motor output shaft is fixedly connected to the mounting seat. A spiral sleeve is fixedly connected to the mounting seat by bolts, and the top end of the connecting rod passes through a retaining ring and extends into the threaded groove and is fixedly connected to the threaded plate. Although the patented technology can adjust the position of the bottom plate by setting a connecting rod, a threaded plate, a sleeve and a threaded groove, and by rotating the connecting rod, the threaded plate at the bottom end of the connecting rod rotates and moves in the threaded groove, thereby adjusting the position of the bottom plate, and the device can be stably fixed on the bumpy ground for convenient sampling.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that when the spiral sleeve in the above geotechnical engineering sampling device is sampling rock and soil, a lot of flying dust will be raised due to the rotation of the spiral sleeve. If no dust-proof structure is set at the bottom of the spiral sleeve, the flying dust will be easily inhaled by the staff, which will affect the health of the staff. Utility Model Content

[0005] In view of the problem in the prior art that when the spiral sleeve in the above-mentioned geotechnical engineering sampling device is sampling rock and soil, a lot of flying dust will be raised due to the rotation of the spiral sleeve. If no dust-proof structure is provided at the bottom end of the spiral sleeve, the flying dust will be easily inhaled by the staff, thereby affecting the health of the staff. The main purpose of the utility model is to provide a geotechnical engineering sampling device.

[0006] The technical solution of the utility model is as follows: a geotechnical engineering sampling device comprises a chassis, the bottom end of the chassis is fixedly connected with a feed barrel, the outer side of the feed barrel is provided with a top ring, the bottom of the top ring is provided with a bottom ring, an outer bellows is fixedly connected between the top ring and the bottom ring, an inner bellows is fixedly connected between the top ring and the bottom ring and located on the inner wall of the outer bellows, a limiting rod is fixedly connected to the top of the bottom ring and around the inner bellows, a limiting plate is fixedly connected to the surrounding of the feed barrel, the top end of the limiting rod passes through the interior of the top ring and is slidably connected to the limiting plate, a spring is sleeved on the outer side of the limiting rod and located between the top ring and the bottom ring, and a detachable mechanism is provided on the outer side of the outer bellows.

[0007] As a preferred embodiment, the detachable mechanism includes an L-shaped plate fixedly connected to the outer side of the feed barrel, the interior of the L-shaped plate is threadedly connected with bolts, and one end of the bolts is in conflict with the outer side of the top ring.

[0008] As a preferred embodiment, a servo motor is embedded inside the chassis, a feed auger is arranged inside the feed barrel, the output shaft of the servo motor extends into the interior of the feed barrel and is fixedly connected to the feed auger, and a drill bit is fixedly connected to the bottom end of the feed auger.

[0009] As a preferred implementation manner, the top end of the limiting rod is provided with a thread, and the threaded portion of the limiting rod is threadedly connected with a nut.

[0010] As a preferred embodiment, a material receiving box is fixedly connected to the outer side of the feed cylinder, a closed door is hinged inside the material receiving box, and handles are fixedly connected to both sides of the chassis.

[0011] As a preferred implementation, heat dissipation holes are equidistantly formed at the top of the chassis and above the servo motor.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] In the utility model, when the device samples rock and soil, the top ring can be fixedly installed at the bottom end of the feed barrel through a detachable mechanism, and the elastic force of the spring can push the bottom ring to always contact the ground, thereby reducing the leakage of flying dust during rock and soil sampling, and then limiting the flying dust in the inner bellows, thereby reducing the flying dust inhaled by the staff, and through the coordinated use of the inner bellows and the outer bellows, the elastic coefficient between the bottom ring and the top ring can be increased, so that it can cooperate with the drill bit to drill downward into the rock and soil layer for sampling, and when the drill bit samples in the rock and soil, the outer limit rod can play an important supporting and limiting role for the outer bellows and the inner bellows, avoiding the outer bellows and the inner bellows from bending during the sampling process, thereby ensuring the normal operation of the sampling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 An overall stereogram of a geotechnical engineering sampling device is provided for the utility model;

[0015] Figure 2 A schematic diagram of the internal structure of a geotechnical engineering sampling device is provided for the utility model;

[0016] Figure 3 The utility model provides a schematic diagram of the structure of an outer bellows and an inner bellows of a geotechnical engineering sampling device;

[0017] Figure 4 The utility model provides a geotechnical engineering sampling device Figure 1 Enlarged view of point A in the middle.

[0018] Legend: 1. Chassis; 2. Handle; 3. Feed barrel; 4. Receiving box; 5. Outer bellows; 6. Bottom ring; 7. Inner bellows; 8. Feed auger; 9. Drill bit; 10. Top ring; 11. Servo motor; 12. Limit rod; 13. Spring; 14. Limit plate; 15. Nut; 16. L-shaped plate; 17. Bolt. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0020] Reference Figure 1-4A geotechnical engineering sampling device comprises a chassis 1, a feeding barrel 3 is fixedly connected to the bottom end of the chassis 1, a top ring 10 is arranged on the outer side of the feeding barrel 3, a bottom ring 6 is arranged on the bottom of the top ring 10, an outer bellows 5 is fixedly connected between the top ring 10 and the bottom ring 6, an inner bellows 7 is fixedly connected between the top ring 10 and the bottom ring 6 and on the inner wall of the outer bellows 5, a limiting rod 12 is fixedly connected to the top of the bottom ring 6 and around the inner bellows 7, a limiting plate 14 is fixedly connected around the feeding barrel 3, the top of the limiting rod 12 passes through the interior of the top ring 10 and is slidably connected to the limiting plate 14, a spring 13 is sleeved on the outer side of the limiting rod 12 and between the top ring 10 and the bottom ring 6, and a detachable mechanism is arranged on the outer side of the outer bellows 5.

[0021] When the device is sampling rock and soil, the top ring 10 can be fixedly installed at the bottom end of the feed barrel 3 through a detachable mechanism, and the elastic force of the spring 13 can push the bottom ring 6 to always contact the ground, thereby reducing the leakage of flying dust during rock and soil sampling, and then limiting the flying dust in the inner bellows 7, thereby reducing the flying dust inhaled by the staff. By using the inner bellows 7 and the outer bellows 5 in coordination, the elastic coefficient between the bottom ring 6 and the top ring 10 can be increased, so that they can cooperate with the drill bit 9 to drill down into the rock and soil layer for sampling. When the drill bit 9 is sampling in the rock and soil, the outer limit rod 12 can play an important supporting and limiting role for the outer bellows 5 and the inner bellows 7, thereby avoiding bending of the outer bellows 5 and the inner bellows 7 during the sampling process, thereby ensuring the normal operation of the sampling work.

[0022] Reference Figure 4 The detachable mechanism includes an L-shaped plate 16 fixedly connected to the outer side of the feed barrel 3 , and the interior of the L-shaped plate 16 is threadedly connected with bolts 17 , and one end of the bolts 17 is in conflict with the outer side of the top ring 10 .

[0023] When the top ring 10 needs to be installed, the top ring 10 can be inserted into the inner walls of the four L-shaped plates 16, and the top ring 10 can be fixedly installed on the outside of the feed barrel 3 by bolts 17. At the same time, it is also convenient to disassemble the top ring 10, the outer bellows 5, the inner bellows 7 and the bottom ring 6, so that the staff can use them at any time.

[0024] Reference Figure 2 A servo motor 11 is embedded inside the chassis 1, a feed auger 8 is arranged inside the feed barrel 3, the output shaft of the servo motor 11 extends to the inside of the feed barrel 3 and is fixedly connected to the feed auger 8, and a drill bit 9 is fixedly connected to the bottom end of the feed auger 8.

[0025] The rotation of the output shaft of the servo motor 11 can drive the feed auger 8 to rotate, thereby sampling the rock and soil under the ground. Through the setting of the drill bit 9, the feed auger 8 can penetrate into the ground faster.

[0026] Reference Figure 4 The top of the limiting rod 12 is provided with a thread, and the threaded part of the limiting rod 12 is threadedly connected with a nut 15. Through the setting of the nut 15, a certain limiting effect can be played on the limiting rod 12 to prevent the limiting rod 12 from being separated from the feeding barrel 3.

[0027] Reference Figure 1 A material receiving box 4 is fixedly connected to the outside of the feed barrel 3, and a closed door is hinged inside the material receiving box 4. Handles 2 are fixedly connected to both sides of the chassis 1. Through the setting of the material receiving box 4, the rock and soil samples after sampling can be stored, and the handle 2 can be used to hold the handle 2 for easy use of the rock and soil sampling device.

[0028] Reference Figure 2 The top of the chassis 1 and above the servo motor 11 are equidistantly provided with heat dissipation holes to dissipate heat for the servo motor 11 .

[0029] Working principle: When the device is sampling rock and soil, the top ring 10 can be plugged into the inner wall of the four L-shaped plates 16, and the top ring 10 can be fixedly installed on the outside of the feed barrel 3 by bolts 17. At the same time, it is also convenient to disassemble the top ring 10, the outer bellows 5, the inner bellows 7 and the bottom ring 6, so that the staff can use them at any time. The elastic force of the spring 13 can push the bottom ring 6 to always contact the ground, reducing the leakage of flying dust during the rock and soil sampling process, and then limiting the flying dust in the inner bellows 7, thereby reducing the flying dust being inhaled by the staff and passing through the inner bellows 7. When used in conjunction with the outer bellows 5, the elastic coefficient between the bottom ring 6 and the top ring 10 can be increased, so that when cooperated with the drill bit 9, it can drill downward into the rock and soil layer to perform sampling work, and when the drill bit 9 is sampling in the rock and soil, the limit rod 12 on its outside can play an important supporting and limiting role for the outer bellows 5 and the inner bellows 7, avoiding bending of the outer bellows 5 and the inner bellows 7 during the sampling process, thereby ensuring the normal operation of the sampling work, and then starting the servo motor 11 to drive the drill bit 9 and the feed auger 8 to rotate, so as to send the rock and soil under the ground into the receiving box 4.

[0030] The above are only preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A geotechnical engineering sampling device, comprising a housing (1), characterized in that: The bottom end of the chassis (1) is fixedly connected to a feed barrel (3), a top ring (10) is arranged on the outside of the feed barrel (3), a bottom ring (6) is arranged at the bottom of the top ring (10), an outer bellows (5) is fixedly connected between the top ring (10) and the bottom ring (6), an inner bellows (7) is fixedly connected between the top ring (10) and the bottom ring (6) and located on the inner wall of the outer bellows (5), and the top of the bottom ring (6) and located at The inner bellows (7) is fixedly connected to a limiting rod (12) on all four sides, the feed barrel (3) is fixedly connected to a limiting plate (14) on all four sides, the top end of the limiting rod (12) passes through the interior of the top ring (10) and is slidably connected to the limiting plate (14), the outer side of the limiting rod (12) and located between the top ring (10) and the bottom ring (6) are provided with a spring (13), and the outer side of the outer bellows (5) is provided with a detachable mechanism.

2. A geotechnical engineering sampling device according to claim 1, characterized in that: The detachable mechanism comprises an L-shaped plate (16) fixedly connected to the outer side of the feed barrel (3), the interior of the L-shaped plate (16) is threadedly connected with bolts (17), and one end of the bolts (17) is in contact with the outer side of the top ring (10).

3. A geotechnical engineering sampling device according to claim 1, characterized in that: A servo motor (11) is embedded in the chassis (1), a feeding auger (8) is arranged inside the feeding barrel (3), an output shaft of the servo motor (11) extends into the inside of the feeding barrel (3) and is fixedly connected to the feeding auger (8), and a drill bit (9) is fixedly connected to the bottom end of the feeding auger (8).

4. A geotechnical engineering sampling device according to claim 1, characterized in that: The top end of the limiting rod (12) is provided with a thread, and the threaded portion of the limiting rod (12) is threadedly connected with a nut (15).

5. A geotechnical engineering sampling device according to claim 1, characterized in that: The outer side of the feeding cylinder (3) is fixedly connected to a material receiving box (4), the interior of the material receiving box (4) is hinged with a closed door, and both sides of the chassis (1) are fixedly connected to handles (2).

6. A geotechnical engineering sampling device according to claim 3, characterized in that: Heat dissipation holes are equidistantly provided at the top of the chassis (1) and above the servo motor (11).

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