Auxiliary device for adjusting soil limit moisture content
By designing an auxiliary device for soil boundary moisture content testing, using a servo motor-driven stirring mechanism and soil-taking mechanism, the problems of low traditional manual stirring efficiency and uneven soil samples are solved, and efficient and uniform soil samples are achieved. Stirring and safe sampling process.
Patent Information
- Application Number
- CN202420939415.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-04-30
AI Technical Summary
In traditional soil boundary moisture content tests, artificial mixing soil samples are inefficient and uneven, resulting in inaccurate test results and there is a risk of soil samples falling during the sampling process.
Design a auxiliary device, including the barrel and the cover, the cover body is equipped with a servo motor -driven mixer and a soil collection mechanism. The mixing mechanism drives the mixing rod stirring soil sample through the servo motor to drive the shaft.
It improves the efficiency and uniformity of soil sample mixing, reduces the uncertainty of manual operations, avoids the risk of soil samples falling, and simplifies the subsequent test process.
Smart Images
Figure CN222393877U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of soil detection equipment, and particularly relates to an auxiliary device for adjusting soil boundary moisture content. Background Art
[0002] The critical moisture content test is used to determine the liquid limit and plastic limit of clay soil, and to calculate the plasticity index and liquid index, so as to determine the classification of soil. The purpose of the test is to determine the critical moisture content of clay soil when it transforms from flowing state, plastic state, semi-solid state and solid state. The critical moisture content is an important parameter of soil hydraulic properties, which can characterize the ability of soil state to change with the change of water content. Inaccurate critical moisture content test results may lead to serious engineering safety accidents, causing personal and economic property losses.
[0003] The limit moisture test is an important basic test for geotechnical engineering. Before conducting the soil limit moisture test, the representative soil sample needs to be fully stirred. The traditional stirring method is generally operated by the test personnel holding a soil mixing knife in the soil mixing dish. Due to the poor consistency of the manual stirring force, the soil samples are uneven during the soil mixing process, and the soil mixing takes a long time and is inefficient. After the soil is mixed, it is necessary to take samples for further testing. When taking a small amount of samples with a shovel, there is a risk of the soil sample falling during transportation, which is not conducive to subsequent tests. Utility Model Content
[0004] The utility model aims to provide an auxiliary device for adjusting soil moisture content at soil boundaries, aiming to solve the problems existing in the prior art in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] An auxiliary device for adjusting soil moisture content according to soil boundary, comprising a barrel body and a cover body covering the barrel body, the cover body being provided with a stirring mechanism, the stirring mechanism being used for stirring and adjusting soil, the cover body being provided with a soil taking mechanism, the soil taking mechanism comprising a support plate, a telescopic rod and a sampling barrel, the cover body being detachably connected to the support plate, the support plate being provided with a threaded hole, a threaded portion being provided between the telescopic rod and the sampling barrel, the threaded portion being threadedly connected to the threaded hole, a baffle being hinged at an inlet at the bottom of the sampling barrel, the inlet being provided with a flange, a torsion spring being provided at the hinge, the baffle being in contact with the flange, and the baffle being able to rotate toward the inside of the sampling barrel to open the inlet.
[0007] Furthermore, the stirring mechanism includes a servo motor arranged on the top surface of the cover body, and a rotating shaft passing through the barrel body. The top end of the rotating shaft is transmission-connected to the servo motor. Stirring rods are arranged at intervals in parallel along the length direction of the rotating shaft. Ropes are arranged between the parallel stirring rods, and the ropes are used to divide the soil blocks.
[0008] Furthermore, the barrel body is provided with a water adding mechanism, which includes a water adding trough and a guide pipe. The water adding trough is arranged on the upper part of the side wall of the barrel body, one end of the guide pipe is connected to the bottom of the water adding trough, and the other end is connected to the barrel body. A slide groove is arranged on the side of the guide pipe close to the barrel body, the slide groove is connected to the guide pipe and the groove opening is upward, the slide groove is slidably connected to the partition, and the partition is used to control the opening and closing of the guide pipe.
[0009] Furthermore, three guide pipes are provided, and the high ends of the three guide pipes are respectively arranged at the bottom of the water adding tank, and the low ends are arranged vertically at intervals along the side wall of the barrel body.
[0010] Furthermore, the top plate of the sampling barrel opposite to its entrance is provided with an air hole, and the side wall on one side of the top plate is provided with an opening and closing door. One side of the opening and closing door is hinged to the top plate, and the other side is connected to the opposite side wall by bolts. The opening and closing door is used to export the soil sample in the sampling barrel.
[0011] Furthermore, the rope is made of steel wire.
[0012] Compared with the shortcomings and deficiencies of the prior art, the utility model has the following beneficial effects.
[0013] 1. The utility model provides an auxiliary device for adjusting the soil moisture content of soil boundaries. A stirring mechanism is arranged on the cover body. The servo motor drives the rotating shaft to rotate, thereby driving the stirring rod to fully stir the soil sample. Compared with stirring with a manual handheld soil adjusting knife, the auxiliary device for adjusting the soil moisture content of soil boundaries has a higher soil adjusting efficiency. The cover body is provided with a soil taking mechanism. When adjusting the soil, the sampling tube and the telescopic rod are fixed to the support plate through a threaded portion. After the soil adjusting is completed, the telescopic rod is rotated to separate the threaded portion from the threaded hole. The sampling tube is driven by the telescopic rod to penetrate the soil layer for sampling. Since the baffle can open the entrance to the inside of the sampling tube, the soil sample can be prevented from falling when the soil sample is transferred, which is convenient for subsequent tests.
[0014] 2. The water adding mechanism is convenient for adding water during soil adjustment without opening the cover, which improves the convenience of operation. At the same time, the amount of water added is easy to control. Multiple guide pipes are arranged on the side walls of the barrel at different depths, which is convenient for the soil sample to quickly absorb water and helps to improve the efficiency of soil adjustment. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The utility model is a structural schematic diagram of an auxiliary device for adjusting soil moisture content at soil boundary.
[0016] Figure 2 It is a structural schematic diagram of a sampling tube provided with a baffle in the utility model.
[0017] Figure 3 It is a structural schematic diagram of a water adding mechanism provided on a barrel body in the utility model.
[0018] Figure 4 yes Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.
[0019] In the figure: 1-barrel body; 2-cover body; 3-servo motor; 4-rotating shaft; 5-stirring rod; 6-rope; 7-support plate; 8-telescopic rod; 9-threaded part; 10-sampling tube; 11-entry port; 12-baffle; 13-air hole; 14-water adding trough; 15-guide pipe; 16-chute; 17-partition; 18-threaded hole; 19-flange; 20-opening and closing door. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0021] Reference Figure 1 An auxiliary device for adjusting soil boundary moisture content, comprising a barrel body 1, the barrel body 1 is used to place soil samples, the top of the barrel body 1 is detachably connected to a cover body 2, the cover body 2 is provided with a stirring mechanism, the stirring mechanism is used to stir the soil sample so that the soil sample and water are fully mixed, the cover body 2 is also provided with a soil taking mechanism, the soil taking mechanism is used to sample the fully stirred soil sample, so as to carry out a soil boundary moisture content test.
[0022] The top of the barrel body 1 is open, and the cover body 2 covers the top opening of the barrel body 1. The barrel body 1 is preferably made of transparent material, for example, acrylic material, so as to facilitate observation of the soil adjustment state. The stirring mechanism includes a rotating shaft 4, which is vertically arranged at the axis of the barrel body 1. The rotating shaft 4 is provided with a stirring rod 5 along its length direction. The rotating shaft 4 is rotatably connected to the cover body 2. The top end of the rotating shaft 4 passes through the cover body 2 and is transmission-connected to the servo motor 3, which is arranged on the top surface of the cover body 2. The servo motor 3 drives the rotating shaft 4 to rotate, thereby driving the stirring rod 5 to fully stir the soil sample.
[0023] Reference Figure 2The soil taking mechanism includes a support plate 7, a sampling tube 10 and a telescopic rod 8. The cover body 2 is provided with a groove that matches the size and shape of the support plate 7. The groove is through-through from top to bottom. The support plate 7 is embedded in the groove. The top and bottom surfaces of the support plate 7 are respectively aligned with the top and bottom surfaces of the cover body 2. The horizontal cross-sectional size of the sampling tube 10 is smaller than that of the support plate 7, which is convenient for taking out the sampling tube 10. A threaded portion 9 is arranged between the telescopic rod 8 and the sampling tube 10. The support plate 7 is provided with a threaded hole 18 that is through-through from top to bottom. The threaded portion 9 is threadedly matched with the threaded hole 18, which is convenient for taking out The sampling barrel 10 is arranged below the support plate 7, and the telescopic rod 8 is arranged on the top surface of the support plate 7. The sampling barrel 10 is a rectangular columnar structure as a whole, and an inlet 11 is arranged at the bottom thereof for introducing soil samples. A baffle 12 is arranged at the inlet 11, and the baffle 12 is hinged to the sampling barrel 10. A torsion spring (not shown in the figure) is arranged at the hinge. The inlet 11 is provided with a flange 19. Under the action of the torsion spring, the baffle 12 abuts against the flange 19, so that the baffle 12 covers the inlet 11 of the sampling barrel 10 to prevent the soil sample from falling during transportation. The top plate of the sampling barrel 10 located on the opposite side of the inlet 11 is provided with an air hole 13, and the air hole 13 can facilitate the introduction of soil samples into the sampling barrel.
[0024] When sampling, the telescopic rod 8 is pulled out upward and fixed, and the telescopic rod 8 is rotated to separate the threaded portion 9 from the threaded hole 18. The threaded portion 9 moves to the bottom of the threaded hole 18, and the sampling tube 10 is driven downward into the soil body by the telescopic rod 8 to take samples. The soil presses the baffle 12 toward the inside of the sampling tube 10 and enters the sampling tube 10. The sampling tube 10 is lifted upward, and the baffle 12 abuts against the flange 19 under the action of the torsion spring to close the entry port 11. The threaded portion 9 is screwed into the threaded hole 18, the support plate 7 is removed, and the soil sample is transported for subsequent testing.
[0025] In one embodiment, an opening and closing door 20 is provided on the side wall located on one side of the top plate of the sampling tube 10. One side of the opening and closing door 20 is hinged to the top plate, and the other side is connected to the opposite side wall by bolts. The opening and closing door 20 is used to extract the soil sample in the sampling tube 10.
[0026] In one embodiment, multiple groups of stirring rods 5 are arranged along the circumference of the rotating shaft 4, and each group of stirring rods 5 includes multiple stirring rods 5 arranged in parallel along the length direction of the rotating shaft 4. Ropes 6 are arranged between the parallel stirring rods 5, and both ends of the ropes 6 are connected and tightened with the parallel stirring rods 5 at both ends. The ropes 6 are preferably steel wires, which can quickly split soil blocks during the movement of the stirring rods 5, which helps to improve the soil adjustment efficiency.
[0027] In one embodiment, referring to Figure 3 and Figure 4A water adding mechanism is provided on one side of the barrel body 1, and the water adding mechanism includes a water adding trough 14 and a guide pipe 15, one end of the guide pipe 15 is connected to the bottom of the water adding trough 14, and the other end is connected to the side wall of the barrel body 1, and a partition 17 is movably connected on one side close to the side wall of the barrel body 1, and the partition 17 is used to control the on and off of the guide pipe 15. Specifically, the guide pipe 15 is provided with a chute 16, the top of the chute 16 is open, and is communicated with the guide pipe 15, the partition 17 is adapted to the chute 16, the partition 17 is inserted along the top opening of the chute 16, and moves to the bottom of the chute 16, which can block the guide pipe 15, prevent the water in the guide pipe 15 from flowing into the barrel body 1, and prevent the soil sample in the barrel body 1 from entering the guide pipe 15, and the water adding trough 14 is arranged on the upper part of the side wall of the barrel body 1, and the bottom of the water adding trough 14 is inclined so that the connection between it and the guide pipe 15 is located at the lower end of the bottom of the water adding trough 14.
[0028] Preferably, three guide pipes 15 are arranged, one end of the three guide pipes 15 is located at the center of the bottom of the water adding tank 14, and the other end is arranged in sequence along the side wall of the barrel body 1 from top to bottom. By adding water to soil samples at different depths, the soil samples in the barrel body 1 can quickly absorb water, which is beneficial to improving the soil adjustment efficiency.
[0029] When the auxiliary device for adjusting the soil moisture content at the soil boundary is used, the cover body 2 is opened, soil samples and water are added into the barrel body 1, the cover body 2 is closed, and the servo motor 3 is started. The servo motor 3 drives the rotating shaft 4 to rotate, and the stirring rod 5 is driven by the rotating shaft 4 to stir the soil sample. The rope 6 can quickly split the soil blocks. During the stirring process, if the amount of water added is insufficient, water can be added through the water adding mechanism, and a certain amount of water is introduced into the water adding tank 14. The water flows through the guide pipe 15 to the lower end of the guide pipe 15, and the partition 17 is opened to allow the water to flow into the soil samples at different depths, and the stirring mechanism fully stirs the soil. After stirring the soil sample and adjusting the soil, a certain amount of soil sample is taken out through the soil taking mechanism, the telescopic rod 8 is pulled upward and fixed, the threaded part 9 is driven to rotate by the telescopic rod 8 to separate the threaded part 9 from the threaded hole 18, and the telescopic rod 8 is pushed downward to make the telescopic rod 8 drive the sampling tube 10 to penetrate into the soil layer. After the soil sample enters the sampling tube 10, the sampling tube 10 is pulled upward, and the baffle 12 closes the entry port 11 under the action of the torsion spring, and the telescopic rod 8 is rotated to drive the threaded part 9 to enter the threaded hole 18, and the support plate 7 is removed, and the soil sample is transferred as a whole to carry out the subsequent soil boundary moisture content test.
[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An auxiliary device for adjusting soil moisture content at soil boundary, comprising a barrel (1) and a cover (2) covering the barrel (1), characterized in that: The cover body (2) is provided with a stirring mechanism, which is used for stirring and adjusting soil. The cover body (2) is provided with a soil taking mechanism, which comprises a support plate (7), a telescopic rod (8) and a sampling barrel (10). The cover body (2) is detachably connected to the support plate (7). The support plate (7) is provided with a threaded hole (18). A threaded portion (9) is provided between the telescopic rod (8) and the sampling barrel (10). The threaded portion (9) is threadedly connected to the threaded hole (18). The inlet (11) at the bottom of the sampling barrel (10) is hinged to a baffle (12). The inlet (11) is provided with a flange (19). A torsion spring is provided at the hinge. The baffle (12) abuts against the flange (19). The baffle (12) can be rotated toward the inside of the sampling barrel (10) to open the inlet (11).
2. The auxiliary device for adjusting soil moisture content according to claim 1, characterized in that: The stirring mechanism comprises a servo motor (3) arranged on the top surface of the cover body (2), and a rotating shaft (4) passing through the barrel body (1), the top end of the rotating shaft (4) being drivingly connected to the servo motor (3), stirring rods (5) being arranged in parallel and spaced apart along the length direction of the rotating shaft (4), ropes (6) being arranged between the parallel stirring rods (5), and the ropes (6) being used to split soil lumps.
3. The auxiliary device for adjusting soil moisture content according to claim 1, characterized in that: The barrel body (1) is provided with a water adding mechanism, the water adding mechanism comprising a water adding trough (14) and a guide pipe (15), the water adding trough (14) being arranged at the upper part of the side wall of the barrel body (1), one end of the guide pipe (15) being connected to the bottom of the water adding trough (14), and the other end being communicated with the barrel body (1), a chute (16) being arranged on a side of the guide pipe (15) close to the barrel body (1), the chute (16) being communicated with the guide pipe (15) and the notch being upward, the chute (16) being slidably connected to a partition (17), the partition (17) being used to control the on and off of the guide pipe (15).
4. The auxiliary device for adjusting soil moisture content according to claim 3, characterized in that: Three guide pipes (15) are provided, and the upper ends of the three guide pipes (15) are respectively arranged at the bottom of the water adding tank (14), and the lower ends are arranged vertically at intervals along the side wall of the barrel body (1).
5. The auxiliary device for adjusting soil moisture content according to claim 1, characterized in that: The top plate of the sampling tube (10) opposite to the entrance (11) thereof is provided with an air hole (13), and a side wall on one side of the top plate is provided with an opening and closing door (20), one side of the opening and closing door (20) is hinged to the top plate, and the other side is connected to the opposite side wall by bolts, and the opening and closing door (20) is used to guide the soil sample in the sampling tube (10).
6. The auxiliary device for adjusting soil moisture content according to claim 2, characterized in that: The rope (6) is made of steel wire.