Geotechnical sampling device for geotechnical engineering investigation

Abstract

The utility model discloses a geotechnical sampling device for geotechnical engineering investigation, which relates to the technical field of geotechnical investigation and comprises a mounting frame, the left side and the right side of the mounting frame are fixedly connected with bases, the front side and the rear side of each base are fixedly provided with a supporting assembly, and a through hole is formed in the middle of the upper surface of the mounting frame in a penetrating manner. Supporting columns are fixedly mounted on the left side and the right side of the upper surface of the mounting frame correspondingly, notches are formed in the inner sides of the two supporting columns correspondingly, threaded rods are rotationally connected into the two notches correspondingly, a moving plate is in threaded connection between the two threaded rods, and a first motor is fixedly mounted in the middle of the upper surface of the moving plate. The output end of the first motor penetrates through the top end of the moving plate and is fixedly connected with a sampling mechanism, and the bottom of the sampling mechanism extends into the through hole. The sampling device has the advantages that the stability of the sampling device in the sampling process can be ensured, and vibration and deviation are reduced, so that the accuracy and representativeness of samples are improved, and the working duration and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rock and soil investigation, in particular to a rock and soil sampling device for rock and soil engineering investigation. Background Art

[0002] Geotechnical engineering investigation refers to the activities of identifying, analyzing, and evaluating the geological, environmental characteristics and geotechnical conditions of the construction site and compiling investigation documents according to the requirements of the construction project. Geotechnical sampling equipment is required during the geotechnical engineering investigation process.

[0003] For example, Chinese patent (CN219200919U) discloses a rock and soil sampling device for geotechnical engineering investigation, which relates to the field of rock and soil sampling technology, including a sampling tube with a accommodating cavity, the upper end of the sampling tube is threadedly connected to a cover plate, a motor, and the output shaft of the motor is fixed to the upper end of the cover plate; a sampling barrel, the sampling barrel is arranged in the accommodating cavity, and the sampling barrel is provided with an opening for placing the cavity; a drill bit, the drill bit is threadedly connected to the lower end of the sampling tube; a soil retaining member, one end of the soil retaining member is rotatably connected to the side wall of the opening through a connecting assembly; due to the presence of the soil retaining member, when the motor drives the sampling tube, the sampling barrel and the drill bit to extend downward into the soil layer, the soil retaining member is pushed toward the accommodating cavity, so that the sample enters the sampling barrel; after the sampling is completed, the sampling tube is extracted upward, and at the same time, the soil retaining member is pushed downward and closed, thereby reducing the situation where part of the soil and rock enters the sampling barrel from the opening when the sampling barrel is taken out from the rock and soil layer, thereby reducing the sample quality and poor practicality.

[0004] When sampling rock and soil, the above solution requires holding the handle to stabilize the motor, and then applying downward force to ensure that the sampling tube enters the rock and soil smoothly. Without effective support, when encountering uneven ground, the stability of the handheld device is poor, which can easily lead to inaccurate sampling or sample collection failure. Due to the high hardness of deep rock and soil, the handheld sampling device may not be able to effectively collect deep soil or rock samples, which limits its application in deep geological surveys. In response to the above problems, a rock and soil sampling device for geotechnical engineering survey is proposed to solve them. Utility Model Content

[0005] In order to solve the above technical problems, a rock and soil sampling device for geotechnical engineering survey is provided, which solves the above-mentioned problem that when sampling rock and soil, it is necessary to hold the handle to stabilize the motor and then apply downward force to ensure that the sampling tube enters the rock and soil smoothly. There is no effective support. When encountering uneven ground, the stability of the handheld device is poor, which can easily lead to inaccurate sampling or sample collection failure. Due to the high hardness of deep rock and soil, the handheld sampling device may not be able to effectively collect deep soil or rock samples, which limits its application in deep geological surveys.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a geotechnical sampling device for geotechnical engineering survey, comprising a mounting frame, wherein the left and right sides of the mounting frame are fixedly connected to a base, and the front and rear sides of the two bases are fixedly installed with support assemblies, a through hole is provided through the middle of the upper surface of the mounting frame, and support columns are fixedly installed on the left and right sides of the upper surface of the mounting frame, and the inner sides of the two support columns are provided with slots, and threaded rods are rotatably connected inside the two groups of the slots, and a movable plate is threadedly connected between the two threaded rods, and a first motor is fixedly installed on the middle of the upper surface of the movable plate, and the output end of the first motor passes through the top of the movable plate and is fixedly connected to a sampling mechanism, and the bottom of the sampling mechanism extends to the inside of the through hole.

[0007] Preferably, the tops of the two support columns are fixedly connected to a cross bar, the tops of the two threaded rods pass through the bottoms of the cross bar and are fixedly connected to synchronous wheels, and the two synchronous wheels are connected by a synchronous belt transmission.

[0008] Preferably, a fixing plate is fixedly connected to the left side of the cross bar, and fixing rods are fixedly connected to the four corners of the upper surface of the fixing plate. The tops of the four fixing rods are fixedly connected to a mounting plate, and a second motor is fixedly installed on the bottom surface of the mounting plate. The output end of the second motor passes through the mounting plate and is fixedly connected to the left synchronous wheel.

[0009] Preferably, the support assembly includes a connecting plate, which is fixedly connected to the base. The upper end of the connecting plate on the side away from the base is rotatably connected to two first connecting rods, and a first connecting rod is fixedly connected between the two first connecting rods at one end away from the connecting plate, and the middle part of the first connecting rod is rotatably connected to a vertical rod.

[0010] Preferably, the lower end of the connecting plate away from the base is rotatably connected to a second connecting rod, a second connecting rod is fixedly connected between the two second connecting rods at one end away from the connecting plate, the middle part of the vertical rod is rotatably connected to the second connecting rod, and the bottom of the vertical rod is fixedly connected to a non-slip bottom plate.

[0011] Preferably, the lower end of the middle portion of one side of the connecting plate is rotatably connected to an electric telescopic rod, and the output end of the electric telescopic rod is rotatably connected to the upper end of the rear side of the vertical rod through a hinge.

[0012] Preferably, universal movable wheels are fixedly installed at the four corners of the bottom of the mounting frame.

[0013] Compared with the prior art, the advantages of the present invention are: the present invention sets a support assembly, the output end of the electric telescopic rod contracts to pull the vertical rod downward, the vertical rod is fixed by the plug rod at the bottom of the anti-slip base plate, the vertical rod continues to move downward, and the device is lifted up by the first connecting rod and the second connecting rod to provide stable support for the device, which can ensure the stability of the sampling device during the sampling process, reduce vibration and deviation, and thus improve the accuracy and representativeness of the sample. The four groups of support assemblies are independently controlled, and the stability provided by the support assemblies can help the equipment better adapt to the environment, ensuring that sampling can be carried out smoothly on various complex terrains. With the assistance of the support assembly, the pressure of the handheld device on the operator is avoided, physical fatigue is reduced, and working duration and efficiency are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a structural diagram of the support column in the present utility model;

[0016] Figure 3 This is a schematic diagram of the bottom structure of the installation frame in the present utility model;

[0017] Figure 4 It is the supporting component in the utility model.

[0018] The numbers in the figure are:

[0019] 1. Mounting frame; 2. Base; 3. Support assembly; 301. Connecting plate; 302. First connecting rod; 303. Second connecting rod; 304. First connecting rod; 305. Second connecting rod; 306. Vertical rod; 307. Anti-slip bottom plate; 308. Electric telescopic rod; 4. Through hole; 5. Support column; 6. Notch; 7. Threaded rod; 8. Moving plate; 9. First motor; 10. Sampling mechanism; 11. Cross bar; 12. Fixed plate; 13. Fixed rod; 14. Mounting plate; 15. Second motor; 16. Synchronous wheel; 17. Universal moving wheel. DETAILED DESCRIPTION

[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0021] Reference Figure 1-4As shown, a geotechnical sampling device for geotechnical engineering investigation includes a mounting frame 1, wherein the left and right sides of the mounting frame 1 are fixedly connected to a base 2, and the front and rear sides of the two bases 2 are fixedly installed with a support assembly 3. A through hole 4 is opened in the middle of the upper surface of the mounting frame 1, and support columns 5 are fixedly installed on the left and right sides of the upper surface of the mounting frame 1. The inner sides of the two support columns 5 are opened with a slot 6, and the insides of the two groups of slots 6 are rotatably connected with a threaded rod 7, and a movable plate 8 is threadedly connected between the two threaded rods 7. The threaded matching relationship between the threaded rod 7 and the movable plate 8 enables the movable plate 8 to move up and down accurately, thereby realizing accurate sampling of the sampling mechanism 10 in the rock and soil. A first motor 9 is fixedly installed in the middle of the upper surface of the movable plate 8, and the output end of the first motor 9 passes through the top of the movable plate 8 and is fixedly connected to the sampling mechanism 10. Driven by the first motor 9, the sampling mechanism 10 can easily cut into the rock and soil to obtain the required sample, and the bottom of the sampling mechanism 10 extends to the inside of the through hole 4.

[0022] Specifically, the tops of the two support columns 5 are fixedly connected to the cross bar 11, the tops of the two threaded rods 7 pass through the cross bar 11 and the bottoms are fixedly connected to the synchronous wheels 16, and the two synchronous wheels 16 are connected by a synchronous belt transmission.

[0023] Specifically, a fixed plate 12 is fixedly connected to the left side of the cross bar 11, and fixed rods 13 are fixedly connected to the four corners of the upper surface of the fixed plate 12. The tops of the four fixed rods 13 are fixedly connected to a mounting plate 14, and a second motor 15 is fixedly installed on the bottom surface of the mounting plate 14. The output end of the second motor 15 passes through the mounting plate 14 and is fixedly connected to the left synchronous wheel 16. The transmission method of the synchronous wheel 16 and the synchronous belt ensures the synchronous rotation of the two threaded rods 7, thereby avoiding deflection or jamming of the movable plate 8 during movement.

[0024] Specifically, the support assembly 3 includes a connecting plate 301, which is fixedly connected to the base 2. Two first connecting rods 302 are rotatably connected to the upper end of the connecting plate 301 on the side away from the base 2. A first connecting rod 304 is fixedly connected between the two first connecting rods 302 at the end away from the connecting plate 301. A vertical rod 306 is rotatably connected to the middle of the first connecting rod 304. The design of the support assembly 3 enables the device to be quickly and conveniently fixed to the ground, ensuring stability and accuracy during sampling. The adjustment of the electric telescopic rod 308 allows the device to adapt to different terrain and soil conditions, improving its adaptability and practicality.

[0025] Preferably, the lower end of the connecting plate 301 away from the base 2 is rotatably connected to the second connecting rod 303, and a second connecting rod 305 is fixedly connected between the two second connecting rods 303 at one end away from the connecting plate 301. The middle part of the vertical rod 306 is rotatably connected to the second connecting rod 305, and the bottom of the vertical rod 306 is fixedly connected to the anti-slip bottom plate 307. The setting of the anti-slip bottom plate 307 increases the friction between the device and the ground, preventing the device from sliding or moving during the sampling process, which helps to maintain the accuracy and stability of the sampling.

[0026] Furthermore, an electric telescopic rod 308 is rotatably connected to the lower middle end of one side of the connecting plate 301, and the output end of the electric telescopic rod 308 is rotatably connected to the upper rear end of the vertical rod 306 through a hinge. The output end of the electric telescopic rod 308 is rotatably connected to the upper rear end of the vertical rod 306 through a hinge. This design allows the electric telescopic rod 308 to smoothly pull the vertical rod 306 downward when it is retracted without generating excessive lateral force on the vertical rod 306.

[0027] Specifically, universal movable wheels 17 are fixedly installed at the four corners of the bottom of the installation frame 1. The universal movable wheels 17 are prior art and will not be elaborated on in detail here.

[0028] Working principle: When the device is in use, the universal moving wheel 17 is first used to push the device to a suitable position, and then the support assembly 3 works to support the device. Specifically, the vertical rod 306 is pulled downward by contracting the output end of the electric telescopic rod 308, and the vertical rod 306 is fixed by the plug rod at the bottom of the anti-slip bottom plate 307. The vertical rod 306 continues to move downward, and the device is lifted up by the first connecting rod 302 and the second connecting rod 303 to fix the device. Then the second motor 15 drives its corresponding synchronous wheel 16 to rotate, and the left synchronous wheel 16 drives the other side synchronous wheel 16 to rotate synchronously, and then drives the two threaded rods 7 to rotate synchronously, and the movable plate 8 moves up or down under the threaded matching relationship, and the first motor 9 drives the sampling mechanism 10 to rotate. When the movable plate 8 moves up or down, the rotating sampling mechanism 10 samples the rock and soil.

[0029] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A rock and soil sampling device for geotechnical engineering investigation, characterized by: The invention comprises a mounting frame (1), wherein the left and right sides of the mounting frame (1) are fixedly connected to bases (2), and the front and rear sides of the two bases (2) are fixedly installed with support assemblies (3), a through hole (4) is provided through the middle of the upper surface of the mounting frame (1), and support columns (5) are fixedly installed on the left and right sides of the upper surface of the mounting frame (1), and the inner sides of the two support columns (5) are provided with notches (6), and the insides of the two groups of notches (6) are rotatably connected to threaded rods (7), and a movable plate (8) is threadedly connected between the two threaded rods (7), and a first motor (9) is fixedly installed in the middle of the upper surface of the movable plate (8), and the output end of the first motor (9) passes through the top of the movable plate (8) and is fixedly connected to a sampling mechanism (10), and the bottom of the sampling mechanism (10) extends to the inside of the through hole (4).

2. A rock and soil sampling device for geotechnical engineering investigation according to claim 1, characterized in that: The tops of the two support columns (5) are fixedly connected to a cross bar (11), the tops of the two threaded rods (7) pass through the cross bar (11), and the bottoms are fixedly connected to a synchronous wheel (16), and the two synchronous wheels (16) are connected via a synchronous belt transmission.

3. A rock and soil sampling device for geotechnical engineering investigation according to claim 2, characterized in that: The left side of the crossbar (11) is fixedly connected to a fixed plate (12), the four corners of the upper surface of the fixed plate (12) are fixedly connected to fixed rods (13), the tops of the four fixed rods (13) are fixedly connected to a mounting plate (14), the bottom surface of the mounting plate (14) is fixedly mounted with a second motor (15), and the output end of the second motor (15) passes through the mounting plate (14) and is fixedly connected to the left synchronous wheel (16).

4. A rock and soil sampling device for geotechnical engineering investigation according to any one of claims 1 to 3, characterized in that: The support assembly (3) comprises a connecting plate (301), wherein the connecting plate (301) is fixedly connected to the base (2), and the upper end of the connecting plate (301) away from the base (2) is rotatably connected to two first connecting rods (302), and a first connecting rod (304) is fixedly connected to one end of the two first connecting rods (302) away from the connecting plate (301), and the middle part of the first connecting rod (304) is rotatably connected to a vertical rod (306).

5. The rock and soil sampling device for geotechnical engineering investigation according to claim 4, characterized in that: The lower end of the connecting plate (301) away from the base (2) is rotatably connected to a second connecting rod (303), and a second connecting rod (305) is fixedly connected to one end of the two second connecting rods (303) away from the connecting plate (301). The middle part of the vertical rod (306) is rotatably connected to the second connecting rod (305), and the bottom of the vertical rod (306) is fixedly connected to an anti-slip bottom plate (307).

6. The rock and soil sampling device for geotechnical engineering investigation according to claim 4, characterized in that: The lower middle end of one side of the connecting plate (301) is rotatably connected to an electric telescopic rod (308), and the output end of the electric telescopic rod (308) is rotatably connected to the upper rear end of the vertical rod (306) via a hinge.

7. The rock and soil sampling device for geotechnical engineering investigation according to claim 1, characterized in that: Universal moving wheels (17) are fixedly mounted at the four corners of the bottom of the mounting frame (1).

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