Drilling sampling device for geotechnical engineering investigation

Abstract

The drilling sampling device comprises a connecting column, a main body machine is fixedly installed at the lower end of the connecting column, a drill bit is connected to the lower end of the main body machine in a clamped mode, a connecting disc is connected to the lower side of the interior of the main body machine in a clamped mode, and fixing plates are fixedly installed on the left portion and the right portion of the upper end of the connecting disc respectively. According to the drilling sampling device for geotechnical engineering investigation, a connecting disc is arranged, and under the interaction of an inclined groove and an injection groove, a sample slides into a collecting frame, so that the collecting effect of the sample is enhanced; by arranging a fixing plate, firstly, an electric push rod drives a fixing block to move, a conveying frame is driven by the fixing block to move towards the two ends, a sampling frame makes contact with the inner wall of a drill hole, rock soil on the inner wall of the drill hole is scraped by the sampling frame under driving of a main body machine, and the sampling frame is driven by an inclined groove at the inclination angle of the inclined groove. Samples can be conveyed into the collecting frame through the injection groove, and the sampling frame is convenient to adjust under the action of the electric push rod.

Description

Technical Field

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

[0002] Geotechnical 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. In the process of geotechnical investigation, it is necessary to sample the core to analyze the local geological conditions. Usually, a drill rig is used to drill a drill rod carrying a sampler into the ground to sample the rock and soil at the target core. The drill rod and sampler are then removed to obtain core samples and analyze the composition of the samples.

[0003] The drilling sampling device for geotechnical engineering investigation has the following problems: the existing equipment has a general effect on collecting samples during sampling, and the adjustment effect of the sampler is general, which makes the equipment have certain limitations. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the prior art and provide a drilling sampling device for geotechnical engineering investigation, which can improve the sample collection effect and make the sampler easy to adjust.

[0005] The main purpose of the utility model is to provide a drilling sampling device for geotechnical engineering investigation, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A drilling sampling device for geotechnical engineering investigation comprises a connecting column, a main machine is fixedly installed at the lower end of the connecting column, a drill bit is clamped at the lower end of the main machine, a connecting disk is clamped at the lower side of the inside of the main machine, fixing plates are fixedly installed at the upper left and upper right parts of the connecting disk, and sampling grooves are opened on the left and right sides of the outer cylindrical surface of the main machine.

[0008] Preferably, a hydraulic cylinder is fixedly connected to the middle part of the upper end of the connecting plate, a hydraulic rod is movably connected to the output end of the hydraulic cylinder, and a collecting rack is fixedly connected to the upper end of the hydraulic rod; when the device is taking samples, the hydraulic rod and the collecting rack are first driven downward by the hydraulic cylinder to make the upper end surface of the collecting rack flush with the lower end surface of the sampling slot, and the conveying rack and the injection slot are located on the collecting rack, and at the same time, under the interaction of the inclined slot and the injection slot, the sample slides into the inside of the collecting rack, thereby enhancing the sample collection effect.

[0009] Preferably, the diameter of the collecting rack is equal to the inner wall diameter of the main machine.

[0010] Preferably, a connecting block is fixedly connected to the left front end of the fixing plate, an electric push rod is fixedly connected to the left end of the connecting block, the output end of the electric push rod passes through the connecting block and is fixedly connected to the fixing block, the front end of the fixing block is fixedly connected to a conveying frame, the upper right end of the conveying frame is fixedly connected to a sampling frame, an inclined groove is provided inside the conveying frame, and an injection groove that passes through up and down is provided on the left side inside the conveying frame; first, the fixed block is driven by the electric push rod to move, and under the drive of the fixed block, the conveying frame is moved to both ends so that the sampling frame contacts the inner wall of the borehole, and under the drive of the main machine, the sampling frame scrapes the rock and soil on the inner wall of the borehole, and at the inclination angle of the inclined groove, the sample can be conveyed to the collecting frame through the injection groove, and the sampling frame is easy to adjust under the action of the electric push rod.

[0011] Preferably, there is a gap between the conveying frame and the fixed plate, and the two fixed plates are provided in two and are symmetrically distributed front to back.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. By setting up the connection plate, the sample collection effect can be enhanced. When the device is used to take samples, the hydraulic cylinder first drives the hydraulic rod and the collection frame to move downward, so that the upper end surface of the collection frame is flush with the lower end surface of the sampling slot, and the conveying frame and the injection slot are placed on the collection frame. At the same time, under the interaction of the inclined slot and the injection slot, the sample slides into the collection frame, thereby enhancing the sample collection effect;

[0014] Second, by setting a fixed plate, the sampling frame can adjust the sampling position according to the drill hole. When in use, firstly, the electric push rod is used to drive the fixed block to move, and under the drive of the fixed block, the conveying frame moves to both ends, so that the sampling frame contacts the inner wall of the drill hole, and under the drive of the main machine, the sampling frame scrapes the rock and soil on the inner wall of the drill hole, and under the inclination angle of the inclined groove, the sample can be transported to the collection frame through the injection groove, and the sampling frame is easy to adjust under the action of the electric push rod.

[0015] 3. The working method is: first, the main machine is extended to the appropriate depth underground through the operation of the drill bit, and then the hydraulic cylinder drives the hydraulic rod and the collection frame to move downward, so that the sampling frame and the sampling slot are parallel, and then the electric push rod drives the fixed block and the conveying frame to extend out of the sampling slot. When the sampling frame contacts the inner wall of the borehole, the connecting column drives the main machine to rotate, and under the rotation of the main machine, the two sampling frames scrape off the rock and soil on the inner wall of the borehole, and with the assistance of the inclined slot and the injection slot, the sample is injected into the collection frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a cross-sectional view of the overall structure of the drilling sampling device for geotechnical engineering investigation of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the drilling sampling device for geotechnical engineering investigation of the utility model;

[0018] Figure 3 This is a structural schematic diagram of a connection plate of a drilling sampling device for geotechnical engineering investigation according to the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the structure of a fixing plate of a drilling sampling device for geotechnical engineering investigation.

[0020] In the figure: 1. main machine; 2. connecting column; 3. drill bit; 4. connecting plate; 5. fixing plate; 6. sampling slot; 41. hydraulic cylinder; 42. hydraulic rod; 43. collecting rack; 51. connecting block; 52. electric push rod; 53. fixing block; 54. conveying rack; 55. sampling rack; 56. inclined slot; 57. injection slot. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1-4As shown, a drilling sampling device for geotechnical engineering investigation comprises a connecting column 2, a main machine 1 is fixedly installed at the lower end of the connecting column 2, a drill bit 3 is clamped at the lower end of the main machine 1, a connecting plate 4 is clamped at the lower side of the inside of the main machine 1, a fixing plate 5 is fixedly installed at the upper left and upper right parts of the connecting plate 4, and sampling grooves 6 are provided on the left and right sides of the outer cylindrical surface of the main machine 1.

[0025] A hydraulic cylinder 41 is fixedly connected to the middle of the upper end of the connecting plate 4, and a hydraulic rod 42 is movably connected to the output end of the hydraulic cylinder 41, and a collecting rack 43 is fixedly connected to the upper end of the hydraulic rod 42; the diameter of the collecting rack 43 is equal to the inner wall diameter of the main machine 1; by setting the connecting plate 4, the sample collection effect can be enhanced. When in use, when the equipment is sampling, the hydraulic cylinder 41 is first used to drive the hydraulic rod 42 and the collecting rack 43 to move downward, so that the upper end surface of the collecting rack 43 is flush with the lower end surface of the sampling slot 6, and the conveying rack 54 and the injection slot 57 are located on the collecting rack 43. At the same time, under the interaction of the inclined slot 56 and the injection slot 57, the sample slides into the inside of the collecting rack 43, thereby enhancing the sample collection effect.

[0026] A connecting block 51 is fixedly connected to the left front end of the fixed plate 5, an electric push rod 52 is fixedly connected to the left end of the connecting block 51, an output end of the electric push rod 52 passes through the connecting block 51 and is fixedly connected to a fixed block 53, a conveying frame 54 is fixedly connected to the front end of the fixed block 53, a sampling frame 55 is fixedly connected to the right upper end of the conveying frame 54, an inclined groove 56 is provided inside the conveying frame 54, and an injection groove 57 that passes through the conveying frame 54 from top to bottom is provided on the left side inside the conveying frame 54; there is a gap between the conveying frame 54 and the fixed plate 5, and two fixed plates 5 are provided and are symmetrically distributed front and back; By setting the fixed plate 5, the sampling rack 55 can adjust the sampling position according to the drilling hole. When in use, the fixed block 53 is first driven by the electric push rod 52 to move, and under the drive of the fixed block 53, the conveying rack 54 is moved to both ends, so that the sampling rack 55 contacts the inner wall of the drilling hole, and under the drive of the main machine 1, the sampling rack 55 scrapes the rock and soil on the inner wall of the drilling hole, and at the inclined angle of the inclined groove 56, the sample can be transported to the collection rack 43 through the injection groove 57. Under the action of the electric push rod 52, the sampling rack 55 is easy to adjust.

[0027] It should be noted that the utility model is a drilling sampling device for geotechnical engineering investigation. By setting a connecting plate 4, the sample collection effect can be enhanced. When in use, when the device is sampling, the hydraulic cylinder 41 first drives the hydraulic rod 42 and the collection frame 43 to move downward, so that the upper end surface of the collection frame 43 is flush with the lower end surface of the sampling slot 6, and the conveying frame 54 and the injection slot 57 are located on the collection frame 43. At the same time, under the interaction of the inclined slot 56 and the injection slot 57, the sample slides into the inside of the collection frame 43, thereby enhancing the sample collection effect; by setting The fixed plate 5 allows the sampling rack 55 to adjust the sampling position according to the drilling hole. When in use, the fixed block 53 is first driven by the electric push rod 52 to move, and the conveying rack 54 is moved to both ends under the drive of the fixed block 53, so that the sampling rack 55 contacts the inner wall of the drilling hole, and the sampling rack 55 is driven by the main machine 1 to scrape the rock and soil on the inner wall of the drilling hole, and at the inclined angle of the inclined groove 56, the sample can be transported to the collection rack 43 through the injection groove 57. The sampling rack 55 is easy to adjust under the action of the electric push rod 52. The working method is as follows: first, the main machine 1 is extended underground to an appropriate depth by the operation of the drill bit 3, and then the hydraulic cylinder 41 drives the hydraulic rod 42 and the collecting frame 43 to move downward, so that the sampling frame 55 and the sampling slot 6 are in a parallel state, and then the electric push rod 52 drives the fixed block 53 and the conveying frame 54 to extend outside the sampling slot 6. When the sampling frame 55 contacts the inner wall of the borehole, the connecting column 2 drives the main machine 1 to rotate, and under the rotation of the main machine 1, the two sampling frames 55 scrape off the rock and soil on the inner wall of the borehole, and with the assistance of the inclined groove 56 and the injection groove 57, the sample is injected into the collecting frame 43.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A drilling sampling device for geotechnical engineering investigation, comprising a connecting column (2), characterized in that: The main machine (1) is fixedly mounted on the lower end of the connecting column (2), a drill bit (3) is clamped on the lower end of the main machine (1), a connecting disk (4) is clamped on the lower side of the inside of the main machine (1), a fixing plate (5) is fixedly mounted on the upper left and upper right parts of the connecting disk (4), and sampling grooves (6) are provided on the left and right sides of the outer cylindrical surface of the main machine (1).

2. The drilling sampling device for geotechnical engineering investigation according to claim 1, characterized in that: A hydraulic cylinder (41) is fixedly connected to the middle of the upper end of the connection plate (4), a hydraulic rod (42) is movably connected to the output end of the hydraulic cylinder (41), and a collecting frame (43) is fixedly connected to the upper end of the hydraulic rod (42).

3. The drilling sampling device for geotechnical engineering investigation according to claim 2, characterized in that: The diameter of the collecting frame (43) is equal to the diameter of the inner wall of the main machine (1).

4. The drilling sampling device for geotechnical engineering investigation according to claim 3, characterized in that: The front left portion of the fixed plate (5) is fixedly connected to a connecting block (51), the left end of the connecting block (51) is fixedly connected to an electric push rod (52), the output end of the electric push rod (52) passes through the connecting block (51) and is fixedly connected to a fixing block (53), the front end of the fixing block (53) is fixedly connected to a conveying frame (54), the upper right portion of the conveying frame (54) is fixedly connected to a sampling frame (55), an inclined groove (56) is provided inside the conveying frame (54), and an injection groove (57) penetrating up and down is provided on the left side inside the conveying frame (54).

5. The drilling sampling device for geotechnical engineering investigation according to claim 4, characterized in that: There is a gap between the conveying frame (54) and the fixing plate (5), and the two fixing plates (5) are provided in two and are symmetrically distributed front to back.

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