A sampling device for construction project quality testing
By designing an inclined plate, cylinder, retaining ring, and motor-driven auger structure, the complexity and cumbersome operation of traditional soil sampling devices are solved, enabling convenient and efficient soil sampling, which is particularly suitable for small or hard-to-access areas.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU GUANZHI ENG INSPECTION CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional soil sampling devices are complex in structure and cumbersome to operate, making it difficult to take convenient samples in small or hard-to-reach areas, and they also have problems with soil splashing and clogging.
A sampling device comprising an inclined plate, a cylinder, a retaining ring, and a motor drive was designed. The device uses a screwdriver to cut the soil and feed it into the cylinder, simplifying the operation and preventing soil splashing and clogging.
It enables convenient and efficient soil sampling, especially suitable for small or hard-to-access areas, improving sampling efficiency and quality.
Smart Images

Figure CN224435839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of soil sampling technology, specifically a sampling device for construction project quality testing. Background Technology
[0002] In construction projects, soil quality testing is a crucial step in ensuring the safety and stability of infrastructure. Soil quality directly affects the foundation's bearing capacity, stability, and seismic performance. Therefore, soil sampling is a key step in construction quality testing. Conventional soil sampling devices are widely used in engineering construction to obtain soil samples for further physical and chemical property analysis. However, existing soil sampling devices have several problems, affecting their efficiency in practical engineering applications.
[0003] Traditional soil sampling devices typically consist of multiple components, including sampling tubes, drive units, samplers, and calibration equipment. The overall structure is relatively complex, and the process requires tedious assembly and adjustment, increasing the difficulty and time consumption of operation.
[0004] Traditional sampling devices typically require manual operation or rely on large mechanical equipment, making them inconvenient for soil sampling in confined or hard-to-reach areas. Furthermore, moving, positioning, and installing the equipment in complex environments is time-consuming.
[0005] Therefore, based on the above-mentioned technical problems, it is necessary for those skilled in the art to develop a sampling device for quality testing of construction projects. Utility Model Content
[0006] The purpose of this invention is to provide a sampling device for quality testing of construction projects, so as to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A technical solution for a sampling device for construction project quality testing includes:
[0009] The sampling mechanism includes an inclined plate, a cylinder fixed to the bottom of the inclined plate, a sampling port opened on the inclined plate, and a retaining ring provided at the edge of the inclined plate, wherein the cylinder is installed inside the sampling port;
[0010] The drive mechanism includes a mounting rod, a mounting bracket fixed to the top of the mounting rod, a motor mounted on the mounting bracket, a drive rod that is connected to the output end of the motor, and a screw fixed to the bottom end of the drive rod.
[0011] The drive rod coaxially passes through the sampling port, and the auger is located inside the cylinder.
[0012] As a preferred technical solution, the inclined plate is fixedly connected to the axis of the cylinder at an acute angle.
[0013] As a preferred technical solution, the retaining ring is fixed at the edge of the inclined plate and is arranged in an arc shape.
[0014] As a preferred technical solution, the auger has a helical blade structure with its outer diameter and the inner diameter of the cylinder having a clearance fit.
[0015] As a preferred technical solution, the motor is horizontally fixed to the top of the mounting rod by a mounting bracket, and the drive rod is coaxially connected to the output end of the motor.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] This utility model discloses a sampling device for construction engineering quality testing. The sampling mechanism and drive mechanism work together to achieve convenient soil sampling. The baffle ring effectively prevents soil splashing during sampling, further ensuring sample quality. The auger's structural design allows soil to be effectively cut and fed into the cylinder, avoiding soil clogging problems that may occur in traditional sampling methods. Furthermore, the motor drive not only simplifies the operation steps but also improves sampling efficiency, making it particularly suitable for soil sampling in confined or hard-to-access areas. This utility model provides a simple, convenient, and efficient sampling device for construction engineering quality testing, possessing high practical value and application prospects. Attached Figure Description
[0018] Figure 1 A side view of a sampling device for testing the quality of construction projects;
[0019] Figure 2 A schematic diagram of the front structure of a sampling device for testing the quality of construction projects;
[0020] Figure 3 This is a three-dimensional structural diagram of a sampling device for quality testing of construction projects.
[0021] In the attached diagram, the following are the reference numerals: 1. Inclined plate; 11. Retaining ring; 12. Sampling port; 13. Cylinder; 2. Mounting rod; 21. Mounting bracket; 22. Motor; 23. Drive rod; 24. Screw. Detailed Implementation
[0022] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. For those skilled in the art, this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples.
[0023] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a sampling device for construction engineering quality testing: it includes a sampling mechanism and a driving mechanism. The sampling mechanism includes an inclined plate 1, a cylinder 13, a sampling port 12, and a retaining ring 11. The cylinder 13 is fixed to the bottom of the inclined plate 1, and the upper end of the cylinder 13 opens to form the sampling port 12. The retaining ring 11 is fixed to the edge of the inclined plate 1 and is arc-shaped to prevent soil from splashing out during sampling. The cylinder 13 is installed inside the sampling port 12 for collecting soil samples.
[0024] like Figure 2 As shown, the drive mechanism includes a mounting rod 2, a mounting bracket 21, a motor 22, a drive rod 23, and a screw 24. The motor 22 is horizontally fixed to the top of the mounting rod 2 via the mounting bracket 21. The drive rod 23 is coaxially connected to the output end of the motor 22 and passes through the sampling port 12, with the screw 24 fixed to its bottom end. The screw 24 has a helical blade structure, and its outer diameter is clearance-fitted with the inner diameter of the cylinder 13, used to cut the soil and feed it into the cylinder 13.
[0025] In practical applications, the sampling device is supported by a mounting rod 2, which can be telescopic to facilitate sampling at different heights. During sampling, the motor 22 drives the drive rod 23 to rotate, causing the auger 24 to rotate and penetrate deep into the soil, cutting the soil and lifting it into the cylinder 13. Due to the helical blade structure of the auger 24, the soil is effectively cut and transported, avoiding the soil clogging problems that may occur in traditional sampling methods.
[0026] The sampling device of this invention has a simple structure, is easy to operate, and has high sampling efficiency. Driven by a motor, the operation steps are simplified and sampling efficiency is improved, making it particularly suitable for soil sampling in confined or hard-to-access areas. Furthermore, the baffle ring 11 effectively prevents soil from splashing out during the sampling process, further ensuring the quality of the sample.
[0027] In practice, the speed of motor 22 and the rotation direction of drive rod 23 can be adjusted according to actual needs to adapt to different types of soil and sampling depths. The cylinder 13 of the sampling device can be designed to be detachable, facilitating the transfer and analysis of soil samples after sampling.
[0028] This invention provides a sampling device for construction engineering quality testing that is simple in structure, easy to operate, and has high sampling efficiency, and has high practical value and application prospects.
[0029] The working principle and usage process of this utility model: After assembling the various components of this solution in sequence, work according to the above implementation methods according to actual needs to complete all working steps.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
[0031] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] The embodiments described above are not exhaustive, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the protection scope of the invention.
Claims
1. A sampling device for use in construction quality testing, characterized in that, include: The sampling mechanism includes an inclined plate (1), a cylinder (13) fixed to the bottom of the inclined plate (1), a sampling port (12) opened on the inclined plate (1), and a retaining ring (11) provided at the edge of the inclined plate (1). The cylinder (13) is installed inside the sampling port (12). The drive mechanism includes a mounting rod (2), a mounting bracket (21) fixed to the top of the mounting rod (2), a motor (22) mounted on the mounting bracket (21), a drive rod (23) that is connected to the output end of the motor (22), and a screw (24) fixed to the bottom end of the drive rod (23). The drive rod (23) coaxially passes through the sampling port (12), and the spiral device (24) is located inside the cylinder (13).
2. The sampling device for construction quality testing according to claim 1, characterized in that: The inclined plate (1) is fixedly connected to the axis of the cylinder (13) at an acute angle.
3. The sampling device for construction quality testing according to claim 1, characterized in that: The retaining ring (11) is fixed at the edge of the inclined plate (1) and is arranged in an arc shape.
4. The sampling device for construction quality testing according to claim 1, characterized in that: The auger (24) has a helical blade structure, and its outer diameter is in clearance fit with the inner diameter of the cylinder (13).
5. A sampling device for construction project quality testing according to claim 1, characterized in that: The motor (22) is horizontally fixed to the top of the mounting rod (2) by the mounting bracket (21), and the drive rod (23) is coaxially connected to the output end of the motor (22).