Sampling equipment for geotechnical engineering exploration

Abstract

The utility model discloses sampling equipment for geotechnical engineering exploration, which belongs to the technical field of geotechnical engineering exploration and comprises a shell component, a cam power component, a storage component and a sampling component, the cam power component and the storage component are sequentially placed in the shell component, and the sampling component is fixedly mounted at the lower end of the inner wall of the shell component. The sampling scraper is driven by the cam power assembly to be opened and closed controllably, the equipment can scrape and collect soil in a large range around a certain depth of a drilled hole in one time of operation, the sampling area is obviously enlarged, and compared with traditional equipment, the sampling amount is increased, the repeated operation frequency is reduced, and the sampling efficiency is improved. A stepping motor and a cam mechanism are integrated, automatic control over the sampling process is achieved, a user only needs to be connected with external power equipment, the cam can be accurately driven through small-angle rotation of the stepping motor, manual intervention on opening and closing of a sampling scraper is not needed, and the operation difficulty and personal errors are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the geotechnical engineering exploration technical field, and particularly provide a kind of sampling equipment for geotechnical engineering exploration. BACKGROUND

[0002] In the field of geotechnical engineering exploration, sampling equipment is used to collect soil or rock samples from boreholes for analyzing geological conditions. In the prior art, the traditional sampling equipment often has the following problems: the sampling range is limited, and only a small amount of samples can be obtained at a time, resulting in low efficiency; the equipment structure is simple, and relies on manual operation, with low automation degree, which is easy to introduce errors; in addition, the equipment is prone to jamming or loosening during sampling, affecting reliability. Therefore, it is necessary to design a sampling equipment for geotechnical engineering exploration. SUMMARY

[0003] To solve the above problems, the utility model provides a kind of sampling equipment for geotechnical engineering exploration.

[0004] To achieve the above purpose, the utility model adopts the technical scheme: a kind of sampling equipment for geotechnical engineering exploration, including shell assembly, cam power assembly, storage assembly and sampling assembly, the cam power assembly and storage assembly are placed in shell assembly in turn, the sampling assembly is fixedly installed on the inner wall lower end of shell assembly, and the shell assembly is connected with external power equipment;

[0005] The sampling assembly includes a sampling shell, and the outer wall of the sampling shell is uniformly provided with an opening, and a sampling scraper is hingedly assembled in the opening; a cam box body is assembled at the lower end of the inner cavity of the sampling shell, and the cam box body is fixedly installed at the lower end of the storage assembly; a cam is rotatably assembled in the cam box body, and the cam is assembled at the output end of the cam power assembly; a moving hole is formed in the outer wall of the cam box body, and a push rod is movably assembled in the moving hole; the outer end of the push rod is attached to the inner wall of the sampling scraper, and the inner end of the push rod is attached to the outer wall of the cam.

[0006] Further, the cam is a square structure with rounded corners.

[0007] Further, a push column is integrally formed on the outer end of the push rod, and the push column is attached to the inner wall of the sampling scraper; a reset assembly is installed between the rotating end of the sampling scraper and the inner wall of the sampling shell.

[0008] Further, the reset assembly is an elastic band or a spring sheet.

[0009] Further, the shell assembly includes a shell and a transmission rod, and the transmission rod is integrally formed on the upper end of the shell; the upper end of the transmission rod is connected to a rotating power device.

[0010] Further, the cam power assembly comprises a box body and a stepping motor, the box body is arranged in the shell, a fixed rod is fixedly installed on the upper wall of the box body, the fixed rod penetrates through a transmission rod and is fixed to an external support, the stepping motor is installed in the box body, a transmission shaft is fixedly installed on the output end of the stepping motor, and the cam is fixedly installed on the lower end of the transmission shaft.

[0011] Further, the storage assembly comprises a storage box, the storage box is arranged in the shell, and the storage box is assembled to the lower wall of the box body, the lower wall of the storage box is assembled with spiral conveying plates, the two spiral conveying plates are double helix arranged, the lower wall of the storage box is provided with openings corresponding to the spiral conveying plates, and the lower ends of the spiral conveying plates are attached to the upper surface of the cam box body.

[0012] The beneficial effects of the utility model are as follows:

[0013] The utility model discloses a cam power assembly drives sampling scraper controllable opening and closing, and the equipment can realize the scraping collection of the soil around a certain depth of drilling in one operation, significantly expands the sampling area, compared with the traditional equipment, the sample collection quantity is improved, and the number of repeated operations is reduced.

[0014] The utility model discloses the integration stepping motor and cam mechanism, realizes the automation control of sampling process, and user only needs to connect external power equipment, and the small angle rotation of stepping motor can drive the cam accurately, does not need manual intervention sampling scraper opening and closing, reduces the operation difficulty and artificial error.

[0015] The utility model discloses the spiral conveying plate of double helix arrangement on the storage assembly can guide the soil into the storage box by relative motion, avoids sample retention, and improves conveying efficiency. ACCURATE DRAWINGS

[0016] Figure 1 It is the three-dimensional schematic view of the utility model.

[0017] Figure 2 It is the top view of the utility model.

[0018] Figure 3 It is the three-dimensional schematic view of the utility model Figure 2 It is the sectional view of the utility model in A-A direction.

[0019] Figure 4 It is the partial three-dimensional schematic view of the sampling assembly of the utility model.

[0020] Figure 5 It is the top sectional view of the cam of the utility model.

[0021] Figure 6 It is the three-dimensional schematic view of the storage assembly of the utility model.

[0022] The reference signs include: 1, a shell assembly, 11, a shell, 12, a transmission rod, 2, a cam power assembly, 21, a box body, 22, a fixed rod, 23, a stepping motor, 24, a transmission shaft, 3, a storage assembly, 31, a storage box, 32, a spiral conveying plate, 4, a sampling assembly, 41, a sampling shell, 42, a sampling scraper, 43, a cam box body, 44, a cam, 45, a pushing rod, 46, a pushing column, 47, a reset assembly. DETAILED DESCRIPTION

[0023] 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, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Reference Figures 1 to 6 A sampling device for geotechnical engineering exploration, comprising a shell assembly 1, a cam power assembly 2, a storage assembly 3 and a sampling assembly 4, the cam power assembly 2 and the storage assembly 3 are sequentially placed in the shell assembly 1, the sampling assembly 4 is fixedly installed at the lower end of the inner wall of the shell assembly 1, and the shell assembly 1 is connected with an external power device.

[0025] The connection between the shell assembly 1 and the sampling assembly 4 can adopt threaded connection, and the rotation directions of the shell assembly 1 and the sampling assembly 4 are opposite to the rotation direction of the thread, so as to avoid loosening.

[0026] The shell assembly 1 and the sampling assembly 4 rotate together, the cam power assembly 2 and the storage assembly 3 are arranged in the shell assembly 1, but are fixed in state and do not rotate with the shell assembly 1 and the sampling assembly 4.

[0027] The sampling assembly 4 comprises a sampling shell 41, openings are uniformly formed in the outer wall of the sampling shell 41, and a sampling scraper 42 is hingedly assembled in the openings, a cam box body 43 is assembled at the lower end of the inner cavity of the sampling shell 41, the cam box body 43 is fixedly installed at the lower end of the storage assembly 3, a cam 44 is rotatably assembled in the cam box body 43, the cam 44 is assembled at the output end of the cam power assembly 2, a moving hole is formed in the outer wall of the cam box body 43, and a pushing rod 45 is movably assembled in the moving hole, the outer end of the pushing rod 45 is attached to the inner wall of the sampling scraper 42, the inner end of the pushing rod 45 is attached to the outer wall of the cam 44, and the cam 44 has a square structure with a round corner.

[0028] The cam box body 43 has the same state as the storage assembly, and remains stationary when the sampling shell 41 and the sampling scraper 42 rotate, so that the position of the pushing rod 45 is unchanged, and the sampling scraper 42 can be effectively pushed.

[0029] Specifically, the outer end of the push rod 45 is integrally formed with a push column 46, and the push column 46 is attached to the inner wall of the sampling scraper 42. A reset assembly 47 is installed between the rotating end of the sampling scraper 42 and the inner wall of the sampling shell 41. The reset assembly 47 is a spring band or a spring sheet.

[0030] The initial state of the cam 44 is shown in Figure 5 At this time, the push rod 45 is attached to the innermost position of the cam, and at this time, the sampling scraper 42 is closed, and cooperates with the sampling assembly 4 to form a cylinder, which facilitates the extension of the device into the sampling drill hole.

[0031] The push column 46 provided on the push rod 45 can better apply a pushing force to the sampling scraper 42, so that the sampling scraper 42 is stably opened and performs soil scraping work.

[0032] During sampling, the sampling assembly 4 is rotated by the shell assembly 1, and the cam 44 is slowly rotated by the cam power assembly 2. The push rod 45 is gradually moved outward, so that the sampling scraper 42 is gradually opened, and the soil around the depth position in the sampling drill hole is scraped. The scraped soil sample is gradually pushed into the sampling shell 41 under the guidance of the sampling scraper 42. When the cam 44 contacts the push rod 45 at the corner, the sampling scraper 42 reaches the maximum opening, achieving large-scale sampling of soil at a certain depth, and increasing the number of samples in one sampling.

[0033] With the continuous rotation of the cam 44 and the elastic force of the reset assembly 47, the sampling scraper 42 is gradually reset. When the sampling scraper 42 reaches the initial state, the sampling device can be removed from the sampling drill hole.

[0034] In actual application, the number of sampling scrapers 42 and push rods 45 can be adjusted, and the shape of the cam 44 can also be adjusted.

[0035] Specifically, the shell assembly 1 includes a shell 11 and a transmission rod 12, and the transmission rod 12 is integrally formed at the upper end of the shell 11. The upper end of the transmission rod 12 is connected to a rotating power device.

[0036] A penetrating rod is also needed to be connected to the upper end of the shell assembly 1, which is used to enter the device into the sampling drill hole. If the shell assembly 1 and the penetrating rod are fixedly installed, the rotating power device is connected to the penetrating rod, and then connected to the transmission rod 12 to realize rotation transmission. If the shell assembly 1 and the penetrating rod are connected in a rotating assembly manner, the length of the transmission rod 12 can be lengthened until it is connected to the rotating power device. The penetrating rod is a tubular structure and plays a supporting role.

[0037] Specifically, the cam power assembly 2 comprises a box body 21 and a stepping motor 23, the box body 21 is arranged in the shell 11, a fixed rod 22 is fixedly installed on the upper wall of the box body 21, the fixed rod 22 penetrates through the transmission rod 12 and is fixed on the external support, the stepping motor 23 is installed in the box body 21, a transmission shaft 24 is fixedly installed on the output end of the stepping motor 23, and the cam 44 is fixedly installed on the lower end of the transmission shaft 24.

[0038] The stepping motor 23 can rotate at a small angle, thereby driving the cam 44 to rotate slowly, and one sampling work can be completed by rotating the cam 44 by 90°.

[0039] Specifically, the storage assembly 3 comprises a storage box 31, the storage box 31 is arranged in the shell 11, and the storage box 31 is assembled to the lower wall of the box body 21, the lower wall of the storage box 31 is assembled with a spiral conveying plate 32, there are two spiral conveying plates 32, the two spiral conveying plates 32 are arranged in a double spiral mode, the lower wall of the storage box 31 is provided with an opening corresponding to the spiral conveying plate 32, and the lower end of the spiral conveying plate 32 is attached to the upper surface of the cam box 43.

[0040] Since the sampling shell 41 and the sampling scraper 42 rotate and the spiral conveying plate 32 is fixed, there is relative rotation between the two, therefore, in the process that the sampling scraper 42 gradually closes, the soil gradually enters the sampling shell 41, at this time, the soil can enter the storage box 31 along the spiral conveying plate 32 through the relative rotation and the friction force, and finally most of the soil is located in the storage box 31, and the sampling work is completed.

[0041] The above is only a preferred embodiment of the present application, for those skilled in the art, according to the idea of the present application, many changes can be made in the specific implementation mode and application range, as long as the changes do not deviate from the concept of the present application, and all belong to the protection scope of the present application.

Claims

1. A sampling device for geotechnical engineering exploration, characterized in that: It includes a housing assembly, a cam power assembly, a storage assembly, and a sampling assembly. The cam power assembly and the storage assembly are placed sequentially inside the housing assembly. The sampling assembly is fixedly installed on the lower end of the inner wall of the housing assembly. The housing assembly is connected to an external power device. The sampling assembly includes a sampling shell with evenly spaced openings on its outer wall. A sampling scraper is hinged within each opening. A cam box is mounted at the lower end of the inner cavity of the sampling shell and is fixedly installed at the lower end of the storage assembly. A cam is rotatably mounted within the cam box and is mounted at the output end of a cam power assembly. A moving hole is provided on the outer wall of the cam box, and a push rod is movably mounted within the moving hole. The outer end of the push rod is attached to the inner wall of the sampling scraper, and the inner end of the push rod is attached to the outer wall of the cam.

2. The sampling equipment for geotechnical engineering exploration according to claim 1, characterized in that: The cam is a square structure with rounded corners.

3. A sampling device for geotechnical engineering exploration as described in claim 1, characterized in that: The upper surface of the outer end of the push rod is integrally formed with a push column, and the push column is attached to the inner wall of the sampling scraper. A reset component is installed between the rotating end of the sampling scraper and the inner wall of the sampling shell.

4. A sampling device for geotechnical engineering exploration according to claim 3, characterized in that: The reset component is an elastic band or a spring sheet.

5. A sampling device for geotechnical engineering exploration according to claim 1, characterized in that: The housing assembly includes a housing and a transmission rod, with the transmission rod integrally formed on the upper end of the housing, and the upper end of the transmission rod connected to a rotational power device.

6. A sampling device for geotechnical engineering exploration according to claim 5, characterized in that: The cam power assembly includes a housing and a stepper motor. The housing is placed inside the outer shell. A fixing rod is fixedly installed on the upper wall of the housing. The fixing rod passes through the transmission rod and is fixed to an external bracket. The stepper motor is installed inside the housing. A transmission shaft is fixedly installed on the output end of the stepper motor, and the cam is fixedly installed on the lower end of the transmission shaft.

7. A sampling device for geotechnical engineering exploration according to claim 6, characterized in that: The storage component includes a storage box, which is placed inside the outer shell and assembled on the lower wall of the box. The lower wall of the storage box is equipped with a spiral conveyor plate, and there are two spiral conveyor plates in total. The two spiral conveyor plates are arranged in a double spiral. The lower wall of the storage box has an opening corresponding to the spiral conveyor plate. The lower end of the spiral conveyor plate is attached to the upper surface of the cam box.

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