A soil sampler for civil engineering
By using a modularly designed soil sampler that combines a auger, impact hammer, and cutting edge, the problems of operational difficulties and inaccurate samples associated with existing tools have been solved, enabling convenient and efficient soil sampling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU BIMENG CONSTR TECH MANAGEMENT CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-21
AI Technical Summary
Existing soil sampling tools suffer from problems such as high labor intensity, limited sampling depth, unstable sample quality, complex and expensive equipment, difficult maintenance, and high operational requirements, making it difficult to meet the needs of soil property research on slope terrain.
A modular soil sampler was designed, including a handle assembly, a transmission mechanism, a sampling tube assembly, and a control mechanism. It utilizes a auger, an impact hammer, and a cutting edge to reduce soil disturbance, and combines a scale and a limit ring to achieve accurate sampling. A quick connector enhances versatility.
It improves the convenience, efficiency, and accuracy of soil sampling, adapts to the sampling needs of different soil types and depths, and reduces operational intensity and equipment complexity.
Smart Images
Figure CN224535475U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of civil engineering technology, specifically to a soil sampler for civil engineering. Background Technology
[0002] As part of the topography, slopes possess a certain degree of topographic representativeness, and their soil properties may differ significantly from those of other areas. For example, soil fertility and other properties at the top, middle, and bottom of a slope may vary due to factors such as water flow, erosion, and deposition. In some research projects, it may be necessary to focus specifically on the soil characteristics of slope topography, such as slope stability and soil erosion. Sampling in these areas can yield directly relevant soil data, providing strong support for related research and decision-making.
[0003] However, in the prior art, manual sampling tools such as augers are labor-intensive, have limited sampling depth, and their quality is greatly affected by the operator. Soil shovels damage the original soil structure and cannot obtain deep samples. Among mechanical samplers, impact-type samplers are prone to soil compression deformation due to impact force, damaging the original structure. Rotary samplers are bulky and require external power, making them inconvenient for field operations. Hydraulic / pneumatic sampling equipment has problems such as complex and expensive structure, difficult maintenance, and high technical requirements for operators. Therefore, those skilled in the art provide a soil sampler for civil engineering to solve the problems mentioned in the background art. Utility Model Content
[0004] The purpose of this invention is to provide a soil sampler for civil engineering, which solves the problems in the prior art.
[0005] This utility model provides the following technical solution: a soil sampler for civil engineering, including a handle assembly that is convenient for the user to hold, a transmission mechanism for providing power is hinged to one end of the handle assembly, a sampling tube assembly for sampling soil is provided at one end of the transmission mechanism, and a control mechanism for controlling the sampling depth is provided at the end of the transmission mechanism away from the sampling tube assembly.
[0006] As a preferred embodiment of the above technical solution, the sampling tube assembly includes a spiral drill bit, two sets of symmetrically arranged spiral drill bits are rotatably connected to one end of the transmission mechanism, and a sampling tube body for sampling soil is provided on one side of the two sets of symmetrically arranged spiral drill bits. An impact hammer is rotatably connected between the two sets of symmetrically arranged spiral drill bits through a disc-shaped column, and a guide rod is slidably connected at the center of the inner cavity of the impact hammer.
[0007] As a preferred embodiment of the above technical solution, the transmission mechanism includes a rotary handle, which is fixedly connected to the outer surface of the output shaft of the transmission mechanism. One end of the rotary handle is rotatably connected to a gear set, and the rotary handle is rotatably connected to the output shaft of the sampling tube assembly through the gear set.
[0008] As a preferred embodiment of the above technical solution, one end of the sampling tube body is fixedly connected to an inner liner tube, the outer surface of the end of the inner liner tube away from the sampling tube body is fixedly connected to a cutting edge, and the end of the inner liner tube away from the cutting edge is fixedly connected to an elastic claw.
[0009] As a preferred embodiment of the above technical solution, a scale is provided at one end of the sampling tube body, and the scale is fixedly connected to one end of the gear set. A limit ring is fixedly connected to the outer side of the sampling tube body at the end away from the cutting edge.
[0010] As a preferred embodiment of the above technical solution, an indicator for real-time display of sampling depth is fixedly connected to one end of the gear set near the handle assembly.
[0011] As a preferred embodiment of the above technical solution, the end of the inner liner tube away from the sampling tube body is fixedly connected to a quick connector for quick replacement of different sampling heads.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This utility model employs a modular structural design, clearly dividing the device into a handle assembly, a transmission mechanism, a sampling tube assembly, and a control mechanism. Each component has a clear functional division and works in close coordination. The handle assembly ensures a stable and comfortable grip, facilitating easy operation. The transmission mechanism efficiently transmits power through a rotating handle and gear set, reducing operational intensity. The sampling tube assembly features a spiral drill bit and impact hammer adapted to different soil types, with cutting edges minimizing soil disturbance, elastic chucks ensuring sample integrity, and quick connectors enhancing versatility. The control mechanism, combined with a graduated scale, limit ring, and indicator, enables precise control of sampling depth. The overall structure is rational, effectively improving the convenience, efficiency, and accuracy of soil sampling. Attached Figure Description
[0014] Figure 1 A schematic diagram of the overall structure of a soil sampler for civil engineering.
[0015] Figure 2 This is a schematic diagram of the gear assembly connection of a soil sampler used in civil engineering.
[0016] Figure 3 This is a schematic diagram of the connection of an impact hammer in a soil sampler used in civil engineering.
[0017] Figure 4This is a schematic diagram showing the connection of the cutting edge of a soil sampler used in civil engineering.
[0018] Figure 5 This is a schematic diagram of the limiting ring connection of a soil sampler used in civil engineering.
[0019] In the diagram: 1. Handle assembly; 2. Transmission mechanism; 3. Sampling tube assembly; 4. Control mechanism; 5. Auger bit; 6. Sampling tube body; 7. Rotary handle; 8. Gear set; 9. Impact hammer; 10. Guide rod; 11. Inner liner tube; 12. Cutting edge; 13. Elastic chuck; 14. Scale; 15. Limit ring; 16. Indicator; 17. Quick connector. Detailed Implementation
[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0021] Please see Figure 1 - Figure 5 As shown, this utility model provides a technical solution: a soil sampler for civil engineering, including a handle assembly 1 for easy hand-holding by the user, a transmission mechanism 2 for providing power is hinged to one end of the handle assembly 1, a sampling tube assembly 3 for sampling soil is provided at one end of the transmission mechanism 2, and a control mechanism 4 for controlling the sampling depth is provided at the end of the transmission mechanism 2 away from the sampling tube assembly 3.
[0022] By dividing the device into a handle assembly 1 for easy handholding, a transmission mechanism 2 to provide power, a sampling tube assembly 3 to perform sampling, and a control mechanism 4 to control the sampling depth, the modular design and clear functional division of the structure are achieved. This layout ensures the stability of the user's grip during operation, efficiently transmits power through the transmission mechanism 2 to drive the sampling tube assembly 3, and precisely controls the sampling depth with the help of the control mechanism 4. The overall structural design is reasonable and the functional synergy is strong, providing a fundamental guarantee for the convenience, efficiency and accuracy of soil sampling.
[0023] As one implementation method in this embodiment, please refer to Figure 1 - Figure 2 As shown, the sampling tube assembly 3 includes a spiral drill bit 5. Two sets of symmetrically arranged spiral drill bits 5 are rotatably connected to one end of the transmission mechanism 2. A sampling tube body 6 for sampling soil is provided on one side of the two sets of symmetrically arranged spiral drill bits 5. An impact hammer 9 is rotatably connected between the two sets of symmetrically arranged spiral drill bits 5 through a disc-shaped column. A guide rod 10 is slidably connected at the center of the inner cavity of the impact hammer 9.
[0024] When sampling begins, the auger bit 5 rotates under the drive of the transmission mechanism 2. Its helical structure easily cuts into the soil, continuously conveying soil into the sampling tube body 6 as it rotates, achieving initial soil collection. The impact hammer 9, connected to the two sets of auger bits 5 by a rotating disc-shaped column, plays a crucial role in the sampling process. When encountering harder soil layers, if the rotational power of the auger bit 5 is insufficient to cut in smoothly, the operator can pull up and release the impact hammer 9. The impact hammer 9 slides downwards along the guide rod 10, generating impact force. This impact force is transmitted to the auger bit 5 through the disc-shaped column, assisting the auger bit 5 in breaking through hard soil layers. This greatly improves the sampler's adaptability to different soil types, allowing for successful sampling in both soft and hard soils. The guide rod 10 provides precise guidance for the sliding of the impact hammer 9, ensuring that the impact force is accurately transmitted to the auger bit 5, preventing the impact hammer 9 from deviating and wasting impact force or damaging the device.
[0025] As one implementation method in this embodiment, please refer to Figure 1 - Figure 2 As shown, the transmission mechanism 2 includes a rotating handle 7, which is fixedly connected to the outer surface of the output shaft of the transmission mechanism 2. One end of the rotating handle 7 is rotatably connected to a gear set 8, and the rotating handle 7 is rotatably connected to the output shaft of the sampling tube assembly 3 through the gear set 8.
[0026] When the operator rotates the rotary handle 7, the handle drives the output shaft to rotate, which in turn transmits the rotational power to the gear set 8, which is rotatably connected at one end. The gear set 8, through the meshing of the gears, converts and transmits the torque input from the rotary handle 7, ultimately driving the output shaft of the sampling tube assembly 3 to rotate, providing stable power for the rotation of the auger bit 5. The gear set 8 effectively changes the direction and speed of power transmission, allowing the operator's manual input to be more efficiently converted into the rotational power required for sampling, reducing the operator's labor intensity, and ensuring the stability and uniformity of the auger bit 5's rotation, thus improving sampling quality.
[0027] As one implementation method in this embodiment, please refer to Figure 1 - Figure 4 As shown, an inner liner tube 11 is fixedly connected to one end of the sampling tube body 6. A cutting edge 12 is fixedly connected to the outer surface of the end of the inner liner tube 11 away from the sampling tube body 6, and an elastic claw 13 is fixedly connected to the end of the inner liner tube 11 away from the cutting edge 12.
[0028] When the sampling tube assembly 3 enters the soil, it can first cut the soil, reducing the compression and disturbance the soil experiences when entering the inner liner tube 11, thus preserving the original structure of the soil to the greatest extent. The elastic claw 13 at the end of the inner liner tube 11 away from the cutting edge 12 automatically tightens after sampling, firmly fixing the collected soil sample inside the inner liner tube 11. This prevents the soil sample from falling out or being disturbed by external factors during sample removal, ensuring the integrity and accuracy of the sample and providing a reliable sample basis for subsequent soil analysis.
[0029] As one implementation method in this embodiment, please refer to Figure 1 - Figure 5 As shown, a scale 14 is provided at one end of the sampling tube body 6, and the scale 14 is fixedly connected to one end of the gear set 8. A limit ring 15 is fixedly connected to the outer side of the sampling tube body 6 away from the cutting edge 12.
[0030] During the sampling process, operators can visually understand the depth of the sampling tube into the soil by observing the scale 14. At the same time, the limiting ring 15 on the outer side of the sampling tube body 6 away from the cutting edge 12 can be pre-adjusted and fixed according to the required sampling depth. When the sampling tube reaches the preset depth, the limiting ring 15 will contact the ground surface to prevent the sampling tube from going deeper, thereby accurately controlling the sampling depth, avoiding sampling that is too deep or too shallow, ensuring the accuracy of the sampling depth, and meeting different sampling needs.
[0031] As one implementation method in this embodiment, please refer to Figure 1 - Figure 5 As shown, an indicator 16 for real-time display of sampling depth is fixedly connected to one end of the gear set 8 near the handle assembly 1.
[0032] The indicator 16, which is fixedly connected to one end of the gear set 8 near the handle assembly 1, works in conjunction with the scale 14 to clearly display the sampling depth to the operator in real time. This eliminates the need for the operator to constantly bend over to observe the scale 14, allowing them to accurately grasp the sampling progress while standing. This improves the convenience and efficiency of the operation and reduces fatigue during operation.
[0033] As one implementation method in this embodiment, please refer to Figure 1 - Figure 5 As shown, the end of the inner liner tube 11 away from the sampling tube body 6 is fixedly connected to a quick connector 17 for quick replacement of different sampling heads.
[0034] The quick-connector 17 at the end of the inner liner tube 11 furthest from the sampling tube body 6 allows operators to quickly change to different types of sampling heads according to different soil conditions and sampling requirements, such as alloy cutting tooth sampling heads for hard soil and leak-proof sampling heads for sandy soil. This eliminates the need for complex tools and cumbersome operating procedures, significantly reducing the time required to change sampling heads, improving the sampler's versatility and work efficiency, and enabling the sampler to adapt to various complex sampling environments.
[0035] Working principle: The user holds the handle assembly 1 with a stable grip and, by rotating the rotating handle 7 of the transmission mechanism 2, transmits power to the sampling tube assembly 3 via the gear set 8, driving the two sets of symmetrical spiral drill bits 5 to rotate and cut into the soil, delivering the soil to the sampling tube body 6. When encountering hard soil layers, the impact hammer 9 can be pulled up and slid along the guide rod 10 to generate impact force to assist the drill bit in breaking through. During sampling, the cutting edge 12 outside the inner liner tube 11 reduces soil disturbance, and the elastic claw 13 at the end of the inner liner tube 11 fixes the sample to prevent it from falling. The scale 14 at one end of the gear set 8 works with the limiting ring 15 to control the sampling depth. The indicator 16 near the handle end of the gear set 8 displays the depth in real time. At the same time, the sampling head can be changed as needed through the quick connector 17 of the inner liner tube 11, ultimately achieving efficient and accurate sampling of soil of different types and depths.
[0036] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A soil sampler for civil engineering, characterized in that: It includes a handle assembly (1) for easy handholding by the user, one end of which is hinged to a transmission mechanism (2) for providing power, one end of which is provided with a sampling tube assembly (3) for soil sampling, and the end of the transmission mechanism (2) away from the sampling tube assembly (3) is provided with a control mechanism (4) for controlling the sampling depth.
2. A soil sampler for civil engineering according to claim 1, characterized in that: The sampling tube assembly (3) includes a spiral drill bit (5), two sets of symmetrically arranged spiral drill bits (5) are rotatably connected to one end of the transmission mechanism (2), and a sampling tube body (6) for sampling soil is provided on one side of the two sets of symmetrically arranged spiral drill bits (5). An impact hammer (9) is rotatably connected between the two sets of symmetrically arranged spiral drill bits (5) through a disc-shaped column, and a guide rod (10) is slidably connected at the center of the inner cavity of the impact hammer (9).
3. A soil sampler for civil engineering according to claim 2, characterized in that: The transmission mechanism (2) includes a rotating handle (7), which is fixedly connected to the outer surface of the output shaft included in the transmission mechanism (2). One end of the rotating handle (7) is rotatably connected to a gear set (8), and the rotating handle (7) is rotatably connected to the output shaft of the sampling tube assembly (3) through the gear set (8).
4. A soil sampler for civil engineering according to claim 2, characterized in that: One end of the sampling tube body (6) is fixedly connected to an inner liner tube (11), and a cutting edge (12) is fixedly connected to the outer surface of the end of the inner liner tube (11) away from the sampling tube body (6), and an elastic claw (13) is fixedly connected to the end of the inner liner tube (11) away from the cutting edge (12).
5. A soil sampler for civil engineering according to claim 4, characterized in that: One end of the sampling tube body (6) is provided with a scale (14), and the scale (14) is fixedly connected to one end of the gear set (8). A limit ring (15) is fixedly connected to the outer side of the sampling tube body (6) away from the cutting edge (12).
6. A soil sampler for civil engineering according to claim 5, characterized in that: The gear set (8) is fixedly connected to an indicator (16) for real-time display of sampling depth at one end near the handle assembly (1).
7. A soil sampler for civil engineering according to claim 4, characterized in that: The end of the inner liner tube (11) away from the sampling tube body (6) is fixedly connected to a quick connector (17) for quick replacement of different sampling heads.