A soil sampling device

Abstract

The utility model relates to the technical field of soil sampling, and discloses a soil sampling device, comprising a drill rod, a cylinder, a shaft gear, a connecting seat, a fixing shaft and a driving handle; the shaft gear comprises a gear body and a connecting shaft located on the bottom surface of the gear body; the cylinder is sleeved on the drill rod, and the connecting shaft is respectively connected to the top of the drill rod and the cylinder; a bearing is installed at the center of the gear body, the fixing shaft is installed in the bearing, and the connecting seat is clamped on the fixing shaft and is located above the gear body; the driving handle is fixed on the connecting seat, a gear motor is arranged inside the driving handle, and a rotating gear of the gear motor is meshed with teeth on the gear body; in actual use, the gear motor is driven to rotate, thereby driving the gear body and the drill rod to rotate, so that soil sampling and collection can be realized by pressing the entire device downward, and the entire collection time is short and the collection efficiency is high.

Description

Technical Field

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

[0002] In the civil construction process of power engineering, the layered backfilling of earthwork is one of the important links, among which the compaction coefficient of soil is a key indicator reflecting the quality of backfilling. In order to ensure the scientific and accurate detection of the compaction coefficient, it is necessary to conduct on-site sampling and testing of each layer of backfilling area in accordance with the requirements of the "Standard for Geotechnical Test Methods" (GB / T 50123-2019).

[0003] Existing soil sampling is mostly done by manually drilling holes or using manual tools such as soil drills, which is still essentially manual or semi-manual soil sampling. However, this sampling method has problems such as long sampling time and low sampling efficiency. Utility Model Content

[0004] In view of the shortcomings of the background technology, the utility model provides a soil sampling device, and the technical problem to be solved is that when currently determining the compaction coefficient of the soil and performing soil sampling, there are defects such as long sampling time and low sampling efficiency.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a soil sampling device, comprising a drill rod, a cylinder, a shaft gear, a connecting seat, a fixing shaft and a driving handle; the shaft gear comprises a gear body and a connecting shaft located at the center of the bottom surface of the gear body;

[0006] The cylinder is sleeved on the drill rod, and the connecting shaft is connected to the top of the drill rod and the cylinder respectively; a bearing is installed at the center of the gear body, the fixing shaft is installed in the bearing, and the connecting seat is clamped on the fixing shaft and is located above the gear body;

[0007] The driving handle is fixed on the connecting seat, and a gear motor is arranged inside the driving handle. The rotating gear of the gear motor is meshed with the teeth on the gear body.

[0008] In a certain embodiment, a lithium battery is provided inside the driving handle, and the lithium battery is used to provide working power for the gear motor.

[0009] In a certain embodiment, the fixing shaft is T-shaped, and the width of the vertical portion of the fixing shaft is greater than the width of the connecting shaft.

[0010] In a certain embodiment, the connecting shaft is connected to the drill rod and the barrel respectively through a pin.

[0011] In a certain embodiment, the cylinder includes a first cylinder, a second cylinder and a third cylinder connected in sequence from top to bottom, the width of the second cylinder is greater than the width of the third cylinder, the width of the third cylinder is greater than the width of the first cylinder, and the first cylinder is connected to the connecting shaft.

[0012] In some embodiments, the height of the third cylinder is greater than the height of the first cylinder, and the height of the first cylinder is greater than the height of the second cylinder.

[0013] In some embodiments, a level is installed on the top surface of the fixing shaft.

[0014] In certain embodiments, the drill pipe is a single-auger drill pipe.

[0015] In some embodiments, a righting handle is also provided on the connecting seat.

[0016] In a certain embodiment, a cover shell is fixed on the connecting seat, and the gear body is located in the cover shell.

[0017] Compared with the prior art, the utility model has the following beneficial effects: in actual use, by driving the gear motor to rotate, the gear body and the drill rod can be driven to rotate, so that soil sampling can be achieved by pressing the entire device down, the entire collection time is short, and the collection efficiency is high;

[0018] Secondly, the structure of the shaft gear of the utility model realizes the fixing, rotation and power transmission of the shaft gear;

[0019] In addition, by setting the first cylinder, the second cylinder and the third cylinder of different widths, the soil can be prevented from overflowing due to volume expansion caused by loosening of the soil during soil collection, thereby achieving complete collection of the soil.

[0020] Finally, by setting the level, you can know whether the drill rod is drilling vertically, thereby ensuring the verticality of the test pit diameter for collecting soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model in the embodiment;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure after removing the cover;

[0023] Figure 3 for Figure 2 Schematic diagram of the structure without the cylinder;

[0024] Figure 4 It is a connection diagram of the fixing shaft, connecting seat and shaft gear. DETAILED DESCRIPTION

[0025] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0026] like Figure 1-4 As shown, a soil sampling device includes a drill rod 1, a barrel 2, a shaft gear 3, a connecting seat 4, a fixing shaft 5 and a driving handle 7; Figure 4 , the shaft gear 3 includes a gear body 30 and a connecting shaft 31 located at the center of the bottom surface of the gear body 30;

[0027] The cylinder 2 is sleeved on the drill rod 1, and the connecting shaft 31 is connected to the top of the drill rod 1 and the cylinder 2 respectively; Figure 4 A bearing 32 is installed at the center of the gear body 30, a fixing shaft 5 is installed in the bearing 32, and a connecting seat 4 is clamped on the fixing shaft 5 and is located above the gear body 30;

[0028] Reference Figure 1 The driving handle 7 is fixed on the connecting seat 4 , and a gear motor is arranged inside the driving handle 7 , and the rotating gear of the gear motor meshes with the teeth on the gear body 30 .

[0029] In actual use, when the gear motor rotates, the gear motor drives the gear body 30 to rotate around the fixing shaft 5, and the rotating gear body 30 drives the drill rod 1 and the barrel 2 to rotate through the connecting shaft 31. When the rotating drill rod 1 and the barrel 2 move downward under the action of external force, soil will be collected, and the collected soil is contained in the barrel 2; and because the drill rod is driven by electric means to collect soil, the overall collection efficiency is high, reducing the collection time. It should also be noted that the gear motor is not marked because it is in the driving handle 7, but for those skilled in the art, the technical solution that only the gear motor drives the gear body 30 to rotate is clear.

[0030] Specifically, in this embodiment, a lithium battery is provided inside the driving handle 7, and the lithium battery is used to provide working power for the gear motor. The capacity of the lithium battery is selected according to actual needs. When it takes a long time to collect soil, a large-capacity lithium battery can be provided, and when the soil collection time is short, a small-capacity battery can be provided. In addition, by providing a lithium battery, the utility model can be better applied to field soil collection without worrying about power problems.

[0031] Reference Figure 4 In this embodiment, the fixing shaft 5 is T-shaped, and the width of the vertical portion of the fixing shaft 5 is greater than the width of the connecting shaft 31. During actual installation, the bottom surface of the vertical portion of the fixing shaft 5 is located on the top surface of the connecting shaft 31.

[0032] Specifically, in this embodiment, the connecting shaft 31 is connected to the drill rod 1 and the barrel 2 respectively through a pin. During actual installation, the connecting shaft 31 is connected to the drill rod 1 and the barrel 2 through a pin, so that the utility model is suitable for the installation of drill rods 1 and barrels 2 of different specifications, so that soil sampling of test pits of multiple specifications can be completed through a set of driving devices.

[0033] Specifically, in this embodiment, referring to Figure 1 The barrel 2 includes a first barrel 20, a second barrel 21 and a third barrel 22 which are sequentially connected from top to bottom, the width of the second barrel 21 is greater than the width of the third barrel 22, the width of the third barrel 22 is greater than the width of the first barrel 20, and the first barrel 20 is connected to the connecting shaft 31. In addition, the first barrel 20, the second barrel 21 and the third barrel 22 are all annular.

[0034] In addition, Figure 1 In the embodiment, the height of the third cylinder 22 is greater than the height of the first cylinder 20 , and the height of the first cylinder 20 is greater than the height of the second cylinder 21 .

[0035] In actual use, by setting cylinders 2 of different widths and making the width of the second cylinder 21 the widest, the soil can be prevented from overflowing due to volume expansion caused by loosening the soil during soil collection, thereby achieving complete collection of the soil and ensuring the accuracy of the calculation results of the soil compaction coefficient.

[0036] In a certain embodiment, a depth mark may be provided on the surface of the cylinder 2 so as to facilitate understanding of the current soil collection depth.

[0037] Reference Figure 1 In this embodiment, a level 6 is installed on the top surface of the fixing shaft 5. In actual use, by setting the level 6, it can be known whether the drill rod 1 is drilled vertically, so as to ensure the verticality of the test pit diameter for collecting soil.

[0038] Reference Figure 3 In this embodiment, the drill rod 1 is a single spiral drill rod. In addition, the drill bit of the drill rod 1 is a single groove single blade structure. Under the action of external force, the drill bit rotates and eats into the formation, cutting the formation into the next layer along the spiral line, and the cut soil debris is transported back to the hole along the spiral blade.

[0039] Reference Figure 1 In this embodiment, a straightening handle 8 is further provided on the connecting seat 4, wherein the straightening handle 8 and the driving handle 7 are arranged opposite to each other on the connecting seat 4. In actual use, by holding the opposite straightening handle 8 and the driving handle 7, the balance of the utility model can be better ensured, ensuring that the soil can be collected vertically during the stratum collection.

[0040] Reference Figure 1In this embodiment, a cover 9 is fixed on the connecting seat 4, and the gear body 30 is located in the cover 9. In actual use, the gear body 30 can be protected by the cover 9 to prevent foreign objects such as sand from falling on the gear body 30.

[0041] In summary, when the utility model is actually used, the gear motor is driven to rotate, thereby driving the gear body 30 and the drill rod 1 to rotate, so that the soil sampling and collection can be achieved by pressing the entire device down, and the entire collection time is short and the collection efficiency is high;

[0042] Secondly, the structure of the shaft gear 3 of the utility model realizes the fixation, rotation and power transmission of the shaft gear 3;

[0043] In addition, by providing the first cylinder, the second cylinder 21 and the third cylinder 22 with different widths, the soil can be prevented from overflowing due to volume expansion caused by loosening of the soil during soil collection, thereby achieving complete collection of the soil.

[0044] Finally, by setting the level meter 7, it can be known whether the drill rod 1 is drilled vertically, so as to ensure the verticality of the test pit diameter for collecting soil.

[0045] The above is based on the enlightenment of this utility model. Through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of ​​this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A soil sampling device, characterized in that: It includes a drill rod, a barrel, a shaft gear, a connecting seat, a fixing shaft and a driving handle; the shaft gear includes a gear body and a connecting shaft located at the center of the bottom surface of the gear body; The cylinder is sleeved on the drill rod, and the connecting shaft is connected to the top of the drill rod and the cylinder respectively; a bearing is installed at the center of the gear body, the fixing shaft is installed in the bearing, and the connecting seat is clamped on the fixing shaft and is located above the gear body; The driving handle is fixed on the connecting seat, and a gear motor is arranged inside the driving handle. The rotating gear of the gear motor is meshed with the teeth on the gear body.

2. A soil sampling device according to claim 1, characterized in that: A lithium battery is arranged inside the driving handle, and the lithium battery is used to provide working power for the gear motor.

3. A soil sampling device according to claim 1, characterized in that: The fixing shaft is T-shaped, and the width of the vertical portion of the fixing shaft is greater than the width of the connecting shaft.

4. A soil sampling device according to claim 1, characterized in that: The connecting shaft is connected to the drill rod and the barrel through a pin respectively.

5. A soil sampling device according to claim 4, characterized in that: The cylinder includes a first cylinder, a second cylinder and a third cylinder which are sequentially connected from top to bottom, the width of the second cylinder is greater than the width of the third cylinder, the width of the third cylinder is greater than the width of the first cylinder, and the first cylinder is connected to the connecting shaft.

6. A soil sampling device according to claim 5, characterized in that: The height of the third cylinder is greater than the height of the first cylinder, and the height of the first cylinder is greater than the height of the second cylinder.

7. A soil sampling device according to claim 1, characterized in that: A level is installed on the top surface of the fixing shaft.

8. A soil sampling device according to claim 1, characterized in that: The drill rod is a single spiral drill rod.

9. A soil sampling device according to claim 1, characterized in that: The connecting seat is also provided with a straightening handle.

10. A soil sampling device according to claim 1, characterized in that: A cover shell is fixed on the connecting seat, and the gear body is located in the cover shell.

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