A soil detection device for road construction
By fixing the probe in the soil testing device and equipping it with a protective shell structure, the problems of soil clogging and safety hazards are solved, achieving stable testing and low-cost maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR EIGHT ENG DIV CORP LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-06-12
AI Technical Summary
The grooves on the side of the sampling tube of existing soil testing devices can easily cause soil blockage, and sticky soil can easily adhere to them, affecting the integrity of the sample. The sharp probes can easily injure workers, posing a safety hazard.
The probe is fixed to the bottom of the detector and supported by a mounting plate. The protective shell is hinged by a tension spring to prevent scratches and contamination. The mounting plate is made of metal to discharge static electricity. The modular components facilitate maintenance.
Ensure the probe is inserted vertically to reduce soil blockage, improve safety, extend service life, reduce maintenance costs, and minimize measurement errors.
Smart Images

Figure CN224354408U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of soil testing technology, and in particular to a soil testing device for road construction. Background Technology
[0002] Before road construction, soil testing equipment is usually used to test the soil, which can help understand the soil environmental quality of the area.
[0003] A search revealed Chinese patent CN210199106U, which discloses a soil testing device. The technical solution is as follows: It includes a housing, in which a sampling box is placed. A first motor is fixedly connected inside the sampling box. A horizontally arranged first gear is fixedly connected to the output shaft of the first motor. A horizontally arranged second gear is rotatably connected to the first gear and meshes with it. There are at least two second gears. A sampling cylinder is fixedly connected to the axis of each second gear on the side away from the first motor. A groove is opened on the lower side of the sampling cylinder. A drill bit is fixedly connected to the bottom of the sampling cylinder. A drive device for electrically driving the sampling box to move outward is fixedly connected inside the housing.
[0004] Based on the above retrieval methods combined with existing technologies;
[0005] The groove on the side of the sampling tube in the aforementioned patented retrieval method may cause soil blockage, especially since sticky soil is prone to adhering to the groove, affecting sample integrity and subsequent cleaning. Furthermore, the probe is designed with a conical end, which is quite sharp and can easily cause workers to be injured during use, posing a safety hazard. Therefore, it has certain limitations. Utility Model Content
[0006] To address the aforementioned technical problems, this utility model proposes a soil testing device for road construction, which avoids probe injuries to workers and reduces safety hazards.
[0007] The technical solution to achieve the purpose of this utility model is: a soil testing device for road construction, including a soil testing instrument, and further comprising;
[0008] A probe, which is fixedly installed at the bottom of the soil testing instrument;
[0009] A fixing plate is fixedly mounted on the probe.
[0010] Preferably, a dust cover is hinged to the side of the soil tester, a connecting plate is fixedly installed on the soil tester, a rotating shaft is fixedly installed on the dust cover, and the rotating shaft is rotatably connected to the connecting plate.
[0011] Preferably, the soil tester is threaded with screws, has a display screen, and has a pair of buttons electrically connected to both sides of its surface.
[0012] Preferably, a pair of protective shells are hinged to the bottom of the fixing plate, one of the protective shells has a limit frame fixedly installed at its bottom end, and the other protective shell has a fixing frame fixedly installed at its bottom end. A tension spring is fixedly installed between the fixing plate and the protective shell.
[0013] Preferably, a movable rod is slidably installed inside the fixed frame, a spring is sleeved on the outside of the movable rod, a limit block is fixedly connected to one end of the movable rod, a round cap is fixedly installed on the other end of the movable rod, and the spring is fixedly installed between the round cap and the limit block.
[0014] Compared with existing technologies, the significant advantages of this invention are:
[0015] Firstly, the probe of this utility model is directly fixed to the bottom of the detector and reinforced with a fixing plate to reduce probe shaking during detection and ensure the verticality and depth of insertion into the soil are consistent. The bottom of the protective shell is hinged by a tension spring and automatically closes when not in use, which avoids scratching workers and prevents the probe from being hit by external forces or contaminated by mud and sand, thus extending the service life of the probe.
[0016] Secondly, the fixing plate of this utility model is made of metal and is conductive to the probe, which can discharge the static electricity inside the detector and reduce the measurement error of sensitive parameters such as soil conductivity and pH value caused by electromagnetic interference; in addition, the modular combination structure allows the protective shell, tension spring and other components to be replaced individually, reducing maintenance costs.
[0017] This invention addresses the issues that existing sampling tube grooves on the side may cause soil blockage, especially since sticky soil tends to adhere to the grooves, affecting sample integrity and subsequent cleaning. Additionally, the probe's cone-shaped tip is sharp and could easily cause workers to be injured during use, posing a safety hazard. Attached Figure Description
[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0019] Figure 1 This is a three-dimensional structural schematic diagram provided by this utility model;
[0020] Figure 2 This is a cross-sectional structural schematic diagram provided by this utility model;
[0021] Figure 3 This is an enlarged structural diagram of the fixing plate provided by this utility model;
[0022] Figure 4 This is a three-dimensional structural diagram of the soil testing instrument provided by this utility model;
[0023] Figure 5 This utility model provides Figure 3 Enlarged structural diagram at point A in the middle.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Soil tester; 2. Dust cover; 3. Probe; 4. Fixing plate; 5. Tension spring; 6. Protective shell; 7. Limiting frame; 8. Fixing frame; 9. Moving rod; 10. Round cap; 11. Spring; 12. Limiting block; 13. Rotating shaft; 14. Screw; 15. Display screen; 16. Button. Detailed Implementation
[0026] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
[0027] This utility model provides an improved soil testing device for road construction. The technical solution of this utility model is as follows:
[0028] like Figures 1-5 As shown, a soil testing device for road construction includes a soil tester 1, which facilitates understanding the soil environmental quality of the area, and also includes;
[0029] Probe 3 is fixedly installed at the bottom of the soil tester 1. It is designed with a sharp structure to facilitate deep penetration into the soil to complete the test.
[0030] The fixing plate 4 is fixedly installed on the probe 3. The four corners of the fixing plate 4 are designed with rounded surfaces to prevent people from bumping into the fixing plate 4 and getting injured, thus improving safety.
[0031] Furthermore, a dust cover 2 is hinged to the side of the soil tester 1, and a connecting plate is fixedly installed on the soil tester 1. A rotating shaft 13 is fixedly installed on the dust cover 2. The rotating shaft 13 is rotatably connected to the connecting plate. The dust cover 2 is closed to prevent dust from falling on the display screen 15 and causing the display screen 15 to become blurry.
[0032] Furthermore, the soil tester 1 is threaded with screws 14, the soil tester 1 is equipped with a display screen 15, and a pair of buttons 16 are electrically connected to both sides of the surface of the soil tester 1. The screws 14 are provided with several grooves to increase friction, making it easier for personnel to rotate the screws 14 and improving the ease of operation.
[0033] As a further embodiment of this utility model, a pair of protective shells 6 are hinged to the bottom of the fixing plate 4. A limit frame 7 is fixedly installed at the bottom end of one of the protective shells 6, and a fixing frame 8 is fixedly installed at the bottom end of the other protective shell 6. A tension spring 5 is fixedly installed between the fixing plate 4 and the protective shell 6. The protective shell 6 has an arc surface design. When the personnel rotate the protective shell 6, the arc surface of the protective shell 6 can fit the personnel's hands, thereby improving the comfort of operation.
[0034] Furthermore, a movable rod 9 is slidably installed inside the fixed frame 8, and a spring 11 is sleeved on the outside of the movable rod 9. One end of the movable rod 9 is fixedly connected to a limiting block 12, and the other end of the movable rod 9 is fixedly installed with a round cap 10. The spring 11 is fixedly installed between the round cap 10 and the limiting block 12. The limiting block 12 is designed with a bevel, which makes it easy for the limiting frame 7 to push the limiting block 12, thereby quickly fixing the two protective shells 6 and improving work efficiency.
[0035] The specific working method is as follows: When the device is not in use, rotate the two protective shells 6 to bring them closer together. The protective shells 6 will stretch the tension spring 5. When the limiting block 12 contacts the limiting frame 7, the limiting frame 7 will push the limiting block 12 closer to the protective shell 6. After the limiting frame 7 moves for a period of time, the spring 11 will reset and push the round cap 10, the moving rod 9 and the limiting block 12 to move. The limiting block 12 will lock the limiting frame 7, thereby fixing the protective shell 6. When the device is in use, push the round cap 10 to drive the limiting block 12 to move, releasing the limiting fixation of the limiting frame 7. At this time, the tension spring 5 will reset and pull the two protective shells 6 away from each other. At this time, the probe 3 can be inserted into the ground to detect the soil. When it is necessary to open the dust cover 2, loosen the screw 14 to release the fixation of the rotating shaft 13. At this time, the dust cover 2 can be rotated and opened. After the dust cover 2 has rotated to a certain angle, tighten the screw 14 to fix the dust cover 2.
[0036] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.
Claims
1. A soil testing device for road construction, comprising a soil testing instrument (1), characterized in that: Also includes; Probe (3), which is fixedly installed at the bottom of the soil testing instrument (1); Fixing plate (4) is fixedly installed on probe (3).
2. The soil testing device for road construction according to claim 1, characterized in that: The soil tester (1) has a dust cover (2) hinged to its side. A connecting plate is fixedly installed on the soil tester (1). A rotating shaft (13) is fixedly installed on the dust cover (2). The rotating shaft (13) is rotatably connected to the connecting plate.
3. The soil testing device for road construction according to claim 1, characterized in that: The soil tester (1) is threaded with screws (14), the soil tester (1) is equipped with a display screen (15), and a pair of buttons (16) are electrically connected to both sides of the surface of the soil tester (1).
4. The soil testing device for road construction according to claim 1, characterized in that: A pair of protective shells (6) are hinged to the bottom of the fixing plate (4). A limit frame (7) is fixedly installed at the bottom end of one of the protective shells (6), and a fixing frame (8) is fixedly installed at the bottom end of the other protective shell (6). A tension spring (5) is fixedly installed between the fixing plate (4) and the protective shell (6).
5. A soil testing device for road construction according to claim 4, characterized in that: A movable rod (9) is slidably installed inside the fixed frame (8). A spring (11) is sleeved on the outside of the movable rod (9). A limit block (12) is fixedly connected to one end of the movable rod (9). A round cap (10) is fixedly installed on the other end of the movable rod (9). The spring (11) is fixedly installed between the round cap (10) and the limit block (12).