Rock soil sampling device for geotechnical engineering investigation

Abstract

The utility model discloses a geotechnical sampling device for geotechnical engineering investigation, which comprises a fixing frame, a hydraulic oil cylinder is fixedly mounted at the upper end of the fixing frame, a pressing plate is fixedly mounted at the telescopic end of the hydraulic oil cylinder, the pressing plate is slidably connected with the inner side of the fixing frame, and a driving motor is fixedly mounted at the upper end of the pressing plate. A drill rod is fixedly mounted at the tail end of an output shaft of the driving motor; a sampling cavity is formed in the drill rod, and a sampling mechanism used for rock soil sampling is arranged in the sampling cavity. According to the utility model, the sampling barrels are arranged at equal intervals, and each sampling barrel can work independently, so that a plurality of rock and soil samples can be obtained at the same depth, and the sampling accuracy and representativeness are improved. In addition, due to the design of the closing plate, rock and soil samples are not prone to falling off in the sampling process, and the sampling accuracy is further guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of geotechnical engineering investigation, especially to the geotechnical engineering investigation is used geotechnical sampling device. BACKGROUND

[0002] As the basis of design and construction, the core purpose of geotechnical engineering investigation is to accurately find out the engineering geological conditions, in-depth analysis of potential geological problems, and make scientific and reasonable engineering geological evaluation on the building area. In this process, the geotechnical sampling device plays a vital role.

[0003] However, the existing sampling device is easy to enter the sampling cavity and mix after sampling, so that deviation is easy to occur in the sampling process, resulting in inaccurate sampling results. UTILITY MODEL CONTENT

[0004] The utility model discloses a geotechnical engineering investigation is used geotechnical sampling device, which is provided with a plurality of sampling tubes arranged at equal intervals in the sampling cavity, and each sampling tube can work independently, so that multiple geotechnical samples can be obtained at the same depth, thereby improving the accuracy and representativeness of sampling. In addition, the design of the closure plate makes the geotechnical sample not easy to fall off during sampling, further ensuring the accuracy of sampling.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The geotechnical engineering investigation is used geotechnical sampling device, including the fixed frame, the upper end fixed mounting of fixed frame has the hydraulic oil jar, the telescopic end fixed mounting of hydraulic oil jar has the pressing plate, the inside slide connection of pressing plate and fixed frame, the upper end fixed mounting of pressing plate has the drive motor, the output shaft end fixed mounting of drive motor has the drill rod;

[0007] The inside of the drill rod is provided with a sampling cavity, and the inside of the sampling cavity is provided with a sampling mechanism for geotechnical sampling.

[0008] Preferably, the sampling mechanism comprises a first electric push rod fixedly installed on the inside of the sampling cavity, the telescopic end of the first electric push rod is fixedly installed with a push plate, and a plurality of sampling tubes are fixedly installed on the side wall of the push plate at equal intervals.

[0009] Preferably, the inside top of the sampling cavity is fixedly installed with a second electric push rod, and the telescopic end of the second electric push rod is fixedly installed with a closure plate.

[0010] Preferably, the closure plate is composed of a vertical circular arc plate and a semicircular plate at the top, and a plurality of circular holes matched with the sampling tubes are arranged at equal intervals on the circular arc plate.

[0011] Preferably, the sidewall of the drill rod is provided with multiple through holes corresponding to the sampling cavities at equal intervals.

[0012] Preferably, the outward end of the sampling cylinder is a blade part, facilitating cutting into the rock-soil for sampling.

[0013] The utility model has the following beneficial effects:

[0014] 1. The device can quickly and deeply drill into the rock-soil layer to realize efficient sampling by driving the drill rod to rotate through the driving motor and providing power through the hydraulic cylinder. Meanwhile, the blade part of the sampling cylinder is designed to make the sampling process smoother, reduce the resistance during sampling, and improve the sampling efficiency.

[0015] 2. The sampling cylinders in the sampling mechanism are arranged at equal intervals, and each sampling cylinder can work independently, ensuring that multiple rock-soil samples can be obtained at the same depth, thereby improving the accuracy and representativeness of sampling. In addition, the design of the closure plate makes it difficult for the rock-soil samples to fall during the sampling process, further ensuring the accuracy of sampling. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a rock-soil sampling device for geotechnical engineering investigation.

[0017] Figure 2 The utility model discloses a rock-soil sampling device for geotechnical engineering investigation.

[0018] Figure 3 The utility model discloses a rock-soil sampling device for geotechnical engineering investigation. Figure 2 The utility model discloses a rock-soil sampling device for geotechnical engineering investigation.

[0019] In the figure: 1 fixed frame, 2 drill rod, 3 pressing plate, 4 driving motor, 5 hydraulic cylinder, 6 first electric push rod, 7 sampling cavity, 8 push plate, 9 second electric push rod, 10 closure plate, 11 sampling cylinder, 12 through hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0022] Referring to Figures 1-3 , the geotechnical sampling device for geotechnical engineering investigation comprises a fixing frame 1, a hydraulic oil cylinder 5 is fixedly installed at the upper end of the fixing frame 1, a pressing plate 3 is fixedly installed at the telescopic end of the hydraulic oil cylinder 5, the pressing plate 3 is slidably connected to the inner side of the fixing frame 1, a driving motor 4 is fixedly installed at the upper end of the pressing plate 3, and a drill rod 2 is fixedly installed at the output shaft end of the driving motor 4;

[0023] A sampling cavity 7 is formed in the inside of the drill rod 2, a sampling mechanism for geotechnological sampling is arranged in the inside of the sampling cavity 7, the sampling mechanism comprises a first electric push rod 6 fixedly installed on the inside of the sampling cavity 7, a push plate 8 is fixedly installed at the telescopic end of the first electric push rod 6, a plurality of sampling barrels 11 are fixedly installed at the side wall of the push plate 8 at equal intervals, a second electric push rod 9 is fixedly installed at the inner top of the sampling cavity 7, a closing plate 10 is fixedly installed at the telescopic end of the second electric push rod 9, the closing plate 10 is composed of a vertical circular arc plate and a semicircular plate at the top, a plurality of circular holes adapted to the sampling barrels 11 are formed in the circular arc plate at equal intervals, a plurality of through holes 12 adapted to the sampling cavity 7 are formed in the side wall of the drill rod 2 at equal intervals, the through holes 12 correspond to the circular holes, and the end of the sampling barrel 11 outward is a cutting edge part, so that the sampling barrel 11 can be conveniently cut into the geotechnological sampling.

[0024] Working principle:

[0025] Firstly, the fixing frame 1 is stably supported, the hydraulic oil cylinder 5 serves as a power source, and the pressing plate 3 connected to the telescopic end of the hydraulic oil cylinder 5 can slide in the inside of the fixing frame 1. After the driving motor 4 at the upper end of the pressing plate 3 is started, the output shaft drives the drill rod 2 to rotate, so that the drill rod 2 can be drilled into the geotechnological sampling.

[0026] The sampling cavity 7 formed in the inside of the drill rod 2 is a key part of the geotechnological sampling. The sampling mechanism comprises the first electric push rod 6 and the second electric push rod 9. Before the drill rod 2 starts to drill into the geotechnological sampling, the circular holes in the closing plate 10 and the sampling barrels 11 keep an interlaced state.

[0027] With the rotation and deepening of the drill rod 2, the telescopic end of the second electric push rod 9 pushes the closing plate 10 to move downward, so that the round hole on the closing plate 10 corresponds to the sampling cylinder 11, and the through hole 12 on the side wall of the drill rod 2 is also aligned with the round hole, so as to prepare for the rock soil to enter the sampling cavity 7; then the first electric push rod 6 is started, and the telescopic end thereof pushes the push plate 8 and the sampling cylinder 11 to move towards the closing plate 10, and the cutting blade part of the sampling cylinder 11 cuts into the rock soil, so that the rock soil is cut by the sampling cylinder 11 and brought into the sampling cavity 7 along with the movement of the push plate 8;

[0028] When the rock soil sample in the sampling cylinder 11 reaches the required amount, the first electric push rod 6 is retracted. At this time, the second electric push rod 9 is started again, and the telescopic end thereof pulls the closing plate 10 to move upward, so that the round hole on the closing plate 10 is dislocated with the sampling cylinder 11 and the through hole 12, thereby closing the sampling cavity 7 to prevent the rock soil sample from falling during the taking-out process;

[0029] Finally, the press plate 3 and the drill rod 2 are lifted as a whole through the telescopic function of the hydraulic oil cylinder 5, so that the rock soil sample is taken out. After the sampling is completed, the rock soil sample in the sampling cylinder 11 can be further analyzed and researched.

[0030] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A geotechnical sampling device for geotechnical engineering investigation, characterized in that: Includes a fixed frame (1), a hydraulic cylinder (5) is fixedly installed on the upper end of the fixed frame (1), a pressure plate (3) is fixedly installed on the telescopic end of the hydraulic cylinder (5), the pressure plate (3) is slidably connected to the inner side of the fixed frame (1), a drive motor (4) is fixedly installed on the upper end of the pressure plate (3), and a drill rod (2) is fixedly installed at the end of the output shaft of the drive motor (4). The drill rod (2) has a sampling chamber (7) inside, and the sampling chamber (7) is equipped with a sampling mechanism for soil and rock sampling.

2. The geotechnical engineering investigation geospatial sampling device according to claim 1, characterized in that, The sampling mechanism includes a first electric push rod (6) fixedly installed on the inner side of the sampling chamber (7), and a push plate (8) is fixedly installed on the telescopic end of the first electric push rod (6). Multiple sampling cylinders (11) are fixedly installed at equal intervals on the side wall of the push plate (8).

3. The geotechnical engineering investigation sampling device according to claim 2, characterized in that, A second electric push rod (9) is fixedly installed on the inner top of the sampling chamber (7), and a closing plate (10) is fixedly installed on the telescopic end of the second electric push rod (9).

4. The geotechnical engineering investigation sampling device according to claim 3, characterized in that, The closed plate (10) is composed of a vertical arc plate and a top semi-circular plate. The arc plate is provided with multiple circular holes at equal intervals that are compatible with the sampling tube (11).

5. The geotechnical engineering investigation sampling device according to claim 4, characterized in that, The sidewall of the drill rod (2) is provided with a plurality of through holes (12) that are adapted to the sampling chamber (7) at equal intervals, and the through holes (12) correspond to the round holes.

6. The geotechnical engineering investigation sampling device according to claim 2, characterized in that, The sampling tube (11) has a blade at the outward-facing end, which makes it easy to cut into the rock and soil for sampling.

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