Testing device for collecting undisturbed soil sample by using transparent rectangular soil tank
The transparent rectangular soil trough device addresses the challenge of soil structure disturbance in sampling by maintaining soil integrity for accurate water observation in scouring and infiltration experiments.
Patent Information
- Application Number
- CN202420743993.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-11
AI Technical Summary
Current methods for collecting undisturbed soil samples, such as slotting and ring knife/steel slot methods, often disturb the soil structure and require significant manpower, making it difficult to observe water infiltration and movement during soil scouring experiments, especially when using transparent rectangular soil troughs for filled samples.
A test device utilizing a transparent rectangular soil trough with a rectangular sheath, cutting knife, and a slot pushing mechanism, along with protective covers, ensures minimal deformation during sampling, allowing for the collection of undisturbed soil samples that can be used in soil scouring and infiltration experiments.
The device maintains the integrity of soil structure during sampling, enabling clear observation of water flushing and migration processes, with stainless steel components providing structural strength and PE material ensuring minimal deformation.
Smart Images
Figure CN222212321U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of original soil sample collection, in particular to a test device for collecting original soil samples by utilizing a transparent rectangular soil trough. Background Art
[0002] The collection of undisturbed soil samples is of great significance for soil science and environmental research. Untouched soil samples can maintain the integrity of soil structure, including the arrangement of soil particles, pore distribution, aggregate size, etc. This is critical for studying the physical properties of soil, such as soil erosion resistance, porosity, permeability, bulk density, etc. The commonly used methods at present are mainly slotting, ring knife / steel slot method and soil block sampling. The slotting method is to dig a large pit on the soil surface and then cut the undisturbed soil sample from the pit wall. The ring knife / steel slot method uses a cylindrical / rectangular tool with a known volume to take samples, so that the density and other physical properties of the soil can be accurately calculated. Soil block sampling is to cut a complete soil sample directly from the soil, which is usually used to study soil structure and root distribution. The slotting method may inevitably disturb the adjacent soil when digging a large pit and cutting samples, and usually requires a large amount of manpower and time investment. In actual soil erosion or scour research, it is difficult to clearly observe the formation, water infiltration and movement of water pits or falls using the stainless steel ring knife / steel trough method.
[0003] Rectangular undisturbed soil samples are often used in soil scouring experiments, but they are currently mostly obtained using the steel trough method, which makes it difficult to observe the development of water pits or drops during soil scouring. Transparent rectangular soil troughs are mostly used for soil infiltration process observation and simulation, but they are mostly used for analysis of filled soil samples. The use of undisturbed soil samples is rare, and undisturbed soil samples are more consistent with the actual situation in the field than filled soil samples. Therefore, how to use transparent rectangular containers to achieve non-deformation collection of undisturbed soil is an urgent problem to be solved. Utility Model Content
[0004] The utility model aims to provide a test device for collecting original soil samples by using a transparent rectangular soil trough. The device can solve the problem of soil structure extrusion and damage caused by the transparent rectangular soil trough during soil collection. The original soil is placed in the transparent rectangular soil trough, which is conducive to studying the development process of water flushing holes or falls during soil scouring experiments and the water migration process in infiltration experiments.
[0005] The utility model solves the technical problem by adopting the following technical scheme: a test device for collecting original soil samples by using a transparent rectangular soil trough, comprising a rectangular sheath, a transparent rectangular soil trough, a rectangular cutting knife, a slot pushing mechanism, a knocking hammer, a soil cutting knife, an upper protective cover and a lower protective cover, wherein the upper portion of the rectangular sheath is provided with a baffle plate, and the lower portion is open, the transparent rectangular soil trough is connected from top to bottom, the rectangular cutting knife is provided at the lower portion of the rectangular sheath, and a cutting blade is provided at the lower edge of the rectangular cutting knife, when the transparent rectangular soil trough is sleeved inside the rectangular sheath, the inner side wall of the transparent rectangular soil trough is flush with the inner side wall of the rectangular cutting knife, the slot pushing mechanism can push the transparent rectangular soil trough out of the rectangular sheath, and the upper protective cover and the lower protective cover can be snapped at the upper and lower ends of the transparent rectangular soil trough.
[0006] Preferably, a ∩-shaped handle is fixedly provided on the upper portion of the rectangular sheath.
[0007] Preferably, the push groove mechanism includes a push plate and a push groove handle, the push groove handle is fixedly arranged on the upper part of the push plate, the push plate and the push groove handle form a T-shaped structure, the push plate can be sleeved in the rectangular sheath, and the upper part of the push groove handle can pass through the baffle.
[0008] Preferably, an outer side of the rectangular cutting knife is connected to the lower part of the rectangular sheath in a hinged manner.
[0009] Preferably, the rectangular sheath and the rectangular cutting knife are both made of stainless steel, and the wall thickness of the rectangular sheath is 2 mm.
[0010] Furthermore, the transparent rectangular soil trough is made of PE material, and the wall thickness of the transparent rectangular soil trough is 4 mm.
[0011] Preferably, the percussion hammer is a rubber hammer.
[0012] The beneficial effects of the utility model are as follows: the utility model has a simple structure and is convenient to manufacture; the rectangular sheath is made of stainless steel material and has a wall thickness of 2mm, so it has a strong structural strength, and will not be greatly deformed when inserted into the soil for auxiliary sampling, thereby realizing the soil sampling deformation limitation of the transparent rectangular soil trough, and then facilitating the transparent rectangular soil trough to maintain its original shape for sampling during the soil sampling process; the transparent rectangular soil is made of PE material and has a wall thickness of 4mm, so it has a strong structural strength, ensuring that it will not be greatly deformed during the soil sampling process, and then realizing the sampling of the original soil to the greatest extent; the transparent rectangular soil trough is transparent, and the transparent rectangular soil contains the original soil, and the transparent rectangular soil trough filled with the original soil is used to study the development process of water flushing nests or falls during soil scouring experiments, and the water migration process in infiltration experiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;
[0016] Figure 3 It is a structural schematic diagram of the trough pushing mechanism and the transparent rectangular soil trough;
[0017] Figure 4 It is a schematic diagram of the buckling state of the upper protective cover and the lower protective cover on the transparent rectangular soil trough;
[0018] In the figure: 1 rectangular sheath, 11∩-shaped handle, 12 baffle, 13 connecting plate, 2 transparent rectangular soil trough, 3 rectangular cutting knife, 31 cutting blade, 32 hinged support ear, 41 push plate, 42 push groove handle, 5 knock hammer, 6 soil cutting knife, 7 upper protective cover, 8 lower protective cover. DETAILED DESCRIPTION
[0019] The following will be combined with specific embodiments and attached Figure 1-4 , the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the preferred embodiments of the utility model, not all of the embodiments. Those skilled in the art can make similar modifications without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0020] The utility model provides a test device (such as a transparent rectangular soil trough) for collecting original soil samples. Figure 1As shown in the figure, it comprises a rectangular sheath 1, a transparent rectangular soil trough 2, a rectangular cutting knife 3, a trough pushing mechanism, a hammer 5, a soil cutting knife 6, an upper protective cover 7, and a lower protective cover 8. The upper part of the rectangular sheath 1 is provided with a baffle 11, and the lower part is open. In practical applications, the transparent rectangular soil trough 2 can be inserted into the interior of the rectangular sheath 1 from the bottom of the rectangular sheath 1, so that during the sampling process, the rectangular sheath 1 can be used to realize the deformation limitation of the transparent rectangular soil trough 2, and then the original state of the sampled soil in the transparent rectangular soil trough 2 is guaranteed to the greatest extent. The transparent rectangular soil trough 2 is connected from top to bottom, and the rectangular cutting knife 6 is provided on the upper protective cover 7 and the lower protective cover 8. The cutting knife 3 is arranged at the lower part of the rectangular sheath 1, and a cutting blade 31 is arranged at the lower edge of the rectangular cutting knife 3. In practical application, the rectangular sheath 1 vertically presses the rectangular cutting knife 3, so that the rectangular cutting knife 3 can be continuously vertically inserted into the sampled soil, and then the rectangular sheath 1 can be continuously entered into the sampled soil. When the transparent rectangular soil groove 2 is placed inside the rectangular sheath 1, the inner side wall of the transparent rectangular soil groove 2 is flush with the inner side wall of the rectangular cutting knife 3, and the inner side wall of the transparent rectangular soil groove 2 is flush with the inner side wall of the rectangular cutting knife 3. The transparent rectangular soil trough 2 is smooth and can ensure that the soil cut by the rectangular cutting knife 3 remains in its original state and smoothly enters the transparent rectangular soil 2, thereby providing a guarantee for subsequent soil scouring experiments and research. The slot pushing mechanism can push the transparent rectangular soil trough 2 out of the rectangular protective cover 1. In practical applications, after the soil sampling is completed by using the utility model and the rectangular protective cover 1 is taken out of the soil, the transparent rectangular soil trough 2 containing the original soil can be slowly pushed out of the rectangular protective cover 1 by using the slot pushing mechanism, thereby facilitating the subsequent soil scouring experiments and research using the transparent rectangular soil trough 2 and the original soil. The upper protective cover 7 and the lower protective cover 8 can be snapped on the upper and lower ends of the transparent rectangular soil trough 2. Specifically, when the soil sampling is completed by using the utility model and the rectangular sheath 1 is taken out of the soil, the rectangular cutting knife 3 is opened, and then the soil is flattened along the bottom of the rectangular sheath 1 using the soil cutting knife 6, and then the transparent rectangular soil trough 2 is gently pushed to make it extend a certain distance, and then the lower protective cover 8 is buckled on the bottom of the transparent rectangular soil trough 2. After the buckling is completed, the transparent rectangular soil trough 2 is continued to be pushed to make it completely moved out of the rectangular sheath 1. After it is completely moved out, the upper protective cover 7 is buckled on the upper part of the transparent rectangular soil trough 2.
[0021] In practical applications, in order to ensure the structural strength of the rectangular sheath 1 and the transparent rectangular soil trough 2 so that they are not easily deformed during the sampling process, thereby ensuring the original state sampling of the soil to the greatest extent, the rectangular sheath 1 and the rectangular cutting knife 3 are both made of stainless steel, and the wall thickness of the rectangular sheath 1 is 2mm, and the internal rectangular space dimensions of the rectangular sheath 1 are: 129mm long, 49mm wide and 121.5mm high; the internal space dimensions of the rectangular cutting knife 3 are: 120mm long, 20mm high and 40mm wide, and the wall thickness of the rectangular cutting knife 3 is 6mm; the transparent rectangular soil trough 2 is made of PE material, and the wall thickness of the transparent rectangular soil trough 2 is 4mm, and the internal space dimensions of the transparent rectangular soil 2 are: 120mm long, 120mm high and 40mm wide.
[0022] In order to facilitate the carrying or transport of the rectangular sheath 1, a ∩-shaped handle 11 is fixedly provided on the upper part of the rectangular sheath 1. The ∩-shaped handle 11 includes two square steel tubes and a flat plate. The wall thickness of the square steel tube can be 2 mm and the length is 150 mm. The flat plate is a square steel plate with a thickness of 5 mm.
[0023] On the basis of the above embodiments, the specific implementation of the groove pushing mechanism is as follows: the groove pushing mechanism includes a push plate 41 and a groove pushing handle 42, the groove pushing handle 42 is fixedly arranged on the upper part of the push plate 41, the push plate 41 and the groove pushing handle 42 form a T-shaped structure, the push plate 41 can be sleeved in the rectangular sheath 1, and the upper part of the groove pushing handle 42 can pass through the baffle 11. Specifically, the push plate 41 is made of stainless steel material, and the dimensions of the push plate 41 are: 129 mm in length, 49 mm in width and 1 mm in height; the groove pushing handle 42 is made of stainless steel pipe, the wall thickness of the stainless steel pipe is 0.15 mm, and the outer diameter of the steel pipe is 20 mm.
[0024] In order to facilitate the smooth buckling of the upper protective cover 7 and the lower protective cover 8 on the transparent rectangular soil trough 2, the structural dimensions of the upper protective cover 7 and the lower protective cover 8 are made the same. The upper protective cover 7 and the lower protective cover 8 are both made of a stainless steel plate with a thickness of 1 mm. The internal space dimensions of the upper protective cover 7 and the lower protective cover 8 are: 129 mm in length, 49 mm in width and 10 mm in height.
[0025] On the basis of the above embodiment, one side of the outer side of the rectangular cutting knife 3 is connected to the lower part of the rectangular sheath 1 in a hinged manner. Specifically, two hinged ears 32 are provided on the rectangular cutting knife 3, and connecting plates 13 located on both sides of the hinged ears 32 are provided on the rectangular sheath 1. A pin shaft is used to penetrate the hinged ears 32 and the corresponding connecting plates 13 to realize the hinged connection between the hinged ears 32 and the connecting plates 13.
[0026] In practical applications, the rectangular sheath 1 can be continuously struck by the striking hammer 5, so that the rectangular sheath 1 and the rectangular cutting knife 3 can be continuously inserted into the soil, thereby performing sampling operations. In order to reduce the damage to the rectangular sheath 1 caused by striking, the striking hammer 5 is a rubber hammer.
[0027] The operation flow of using the utility model to sample the original soil is as follows: at the sampling site, open the rectangular cutting knife 3 at the bottom of the rectangular sheath 1, install the pushing groove mechanism into the rectangular sheath 1, and make the pushing plate 41 lean against the bottom of the baffle 11, then place the transparent rectangular soil groove 2 in the rectangular sheath 1, return the rectangular cutting knife 3, then make the rectangular sheath 1 perpendicular to the ground, and then use a rubber hammer to continuously strike the upper part of the ∩-shaped handle 11. As the rubber hammer continues to strike, the rectangular sheath 1 equipped with the transparent rectangular groove 2 continuously cuts into the soil. When the soil surface is 22 mm away from the upper surface of the rectangular sheath 1, stop the striking action, and then take the rectangular sheath 1 and the transparent rectangular soil groove 2 out of the soil. During the taking-out process, in order to maximize the guarantee that the original soil in the transparent rectangular soil groove 2 is not When deformation occurs, all the soil around the rectangular sheath 1 can be dug out, and then the rectangular sheath 1 and the transparent rectangular soil trough 2 can be smoothly taken out. After taking them out, open the rectangular cutting knife 3, and then use the soil cutting knife 6 to cut the soil sample along the lower edge of the rectangular sheath 1 until it is flush with its edge. After completing the soil cutting, gently push the pushing groove handle 42, and then realize the initial push out of the transparent rectangular soil trough 2 in the rectangular sheath 1. After the transparent rectangular soil trough 2 is pushed out of the rectangular sheath 1 by about 10 mm, the upper and lower protective covers 8 are covered at the lower part of the transparent rectangular soil trough 2. After the lower protective cover 8 is buckled, continue to use the pushing plate 41 to continuously push the transparent rectangular soil trough 2. After the transparent rectangular soil trough 2 is completely pushed out of the rectangular sheath 1, the protective cover 7 is covered on the upper part of the transparent rectangular soil trough 2, and then the original soil sampling of the transparent rectangular soil trough 2 is completed.
[0028] In the present utility model, "upper", "lower", "front", "back", "left" and "right" are relative positions used to conveniently describe positional relationships, and therefore cannot be understood as absolute positions to limit the scope of protection.
[0029] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.
[0030] The above description in combination with the accompanying drawings has detailed the preferred implementation modes and embodiments of the utility model, but the utility model is not limited to the above implementation modes and embodiments. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the concept of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.
Claims
1. A test device for collecting undisturbed soil samples using a transparent rectangular soil trough, characterized in that: The utility model comprises a rectangular protective cover, a transparent rectangular soil trough, a rectangular cutting knife, a trough pushing mechanism, a knocking hammer, a soil cutting knife, an upper protective cover and a lower protective cover. The upper part of the rectangular protective cover is provided with a baffle, and the lower part is open. The transparent rectangular soil trough is connected from top to bottom. The rectangular cutting knife is provided at the lower part of the rectangular protective cover, and a cutting blade is provided at the lower edge of the rectangular cutting knife. When the transparent rectangular soil trough is placed inside the rectangular protective cover, the inner side wall of the transparent rectangular soil trough is flush with the inner side wall of the rectangular cutting knife. The trough pushing mechanism can push the transparent rectangular soil trough out of the rectangular protective cover, and the upper protective cover and the lower protective cover can be snapped on the upper and lower ends of the transparent rectangular soil trough.
2. The test device for collecting undisturbed soil samples using a transparent rectangular soil trough according to claim 1, wherein: A ∩-shaped handle is fixedly arranged on the upper part of the rectangular sheath.
3. The test device for collecting undisturbed soil samples using a transparent rectangular soil trough according to claim 1, wherein: The push groove mechanism includes a push plate and a push groove handle. The push groove handle is fixedly arranged on the upper part of the push plate. The push plate and the push groove handle form a T-shaped structure. The push plate can be placed in the rectangular sheath, and the upper part of the push groove handle can pass through the baffle.
4. The test device for collecting undisturbed soil samples using a transparent rectangular soil trough according to claim 1, wherein: An outer side of the rectangular cutting knife is connected to the lower part of the rectangular sheath in a hinged manner.
5. The test device for collecting undisturbed soil samples using a transparent rectangular soil trough according to claim 1, wherein: The rectangular sheath and the rectangular cutting knife are both made of stainless steel, and the wall thickness of the rectangular sheath is 2 mm.
6. The test device for collecting undisturbed soil samples using a transparent rectangular soil trough according to claim 5, wherein: The transparent rectangular soil trough is made of PE material, and the wall thickness of the transparent rectangular soil trough is 4 mm.
7. The test device for collecting undisturbed soil samples using a transparent rectangular soil trough according to claim 1, wherein: The striking hammer is a rubber hammer.