Soil disintegration clamp under adjustable load effect

Abstract

The soil disintegration clamp comprises but not limited to a top plate, a top plate node, a bottom plate, a bottom plate node, a stand column, a vertical rod and a pressing block, scales are marked on the surface of the stand column, the lower end of the stand column is inserted into the bottom plate node and cannot move relative to the bottom plate node, and the upper end of the stand column is inserted into the top plate node and can slide relative to the top plate node. Four cylindrical bearings in two rows and two columns are fixed in nodes of the top plate, and a plurality of pressing blocks can be placed on the top plate. The device can fix a soil sample for a disintegration test and apply a vertically downward load to the soil sample at the same time, so that the whole disintegration process of the soil sample under the action of different loads is realized.

Description

Technical Field

[0001] The utility model belongs to the field of civil engineering testing, and in particular relates to a soil disintegration fixture under an adjustable load in a soil disintegration test. Technical Background

[0002] Soil disintegration refers to the phenomenon that a certain volume of soil absorbs water, disperses, and breaks into fragments and particles in static water. In order to study the disintegration rate of soil and the changes in soil sample morphology under different loads, it is necessary to carry out soil disintegration tests under load. However, there is currently a lack of soil fixtures that can apply uniform and adjustable loads. Therefore, designing a soil disintegration fixture under adjustable loads so that soil can be disintegrated under uniform and adjustable load conditions is essential for soil disintegration research. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a soil disintegration fixture with a simple structure and reliability and capable of adjusting the soil disintegration under load.

[0004] The technical solution to achieve the purpose of this utility model is:

[0005] A soil disintegration fixture under adjustable load, characterized in that it comprises a top plate, a top plate node, a bottom plate, a bottom plate node, a column, a vertical rod, and a pressing block;

[0006] The top plate is circular, and its diameter is consistent with the radius of the test standard soil sample, and four top plate nodes are welded on the side edges of the top plate in a centrally symmetrical form;

[0007] A total of four cylindrical bearings are welded inside the top plate node in two rows and two columns. The cylindrical bearings are composed of an outer wall, a ball and an inner cylinder. The cylindrical bearings are welded inside the node. The net spacing between the two rows of rollers is consistent with the thickness of the column. The top plate node is a through-type. The column can completely penetrate the top plate node, so that the top plate can move horizontally downward as the sample disintegrates;

[0008] The bottom plate is circular, and its diameter is consistent with the radius of the test standard soil sample, and four bottom plate nodes are welded on the side edges of the bottom plate in a centrally symmetrical form;

[0009] The bottom plate node is an open type, with an open top and a closed bottom. The columns can be inserted into the bottom plate node from the top of the bottom plate node. The four bottom plate nodes are used to fix four columns.

[0010] The cross section of the column is rectangular. After the top of the column is inserted into the node of the top plate, the top plate is kept horizontal and can slide up and down. The surface of the column is engraved with scales for recording and observing the height changes of the soil sample during the disintegration process.

[0011] A circular vertical rod is welded at the center of the upper part of the top plate and is used to pass through and fix the pressing block;

[0012] The shape of the pressing block is a hollow circle, the outer diameter of which cannot be larger than the diameter of the top plate, and the inner diameter is consistent with the cross-sectional size of the circular vertical rod, so that the circular vertical rod can pass through the pressing block, and the number of pressing blocks can be increased or decreased according to test requirements.

[0013] The utility model provides a soil disintegration fixture under adjustable load, which has the following advantages:

[0014] 1. While fixing the soil sample, a uniformly distributed load is applied vertically downward to the soil sample to achieve the purpose of soil disintegration test under the uniformly distributed load;

[0015] 2. The four columns are engraved with scales to facilitate test personnel to record the real-time data of soil height changes during the disintegration test;

[0016] 3. The number of pressure blocks on the top plate can be increased or decreased according to demand, so that the test personnel can adjust the load size according to their needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the top plate, top plate nodes and vertical rods of Example 1 of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the top plate node of Example 1 of the utility model;

[0020] As shown in the figure: 1 is the top plate, 2 is the bottom plate, 3 is the pressure block, 4 is the column, 5 is the top plate node, 6 is the bottom plate node, and 7 is the vertical rod. DETAILED DESCRIPTION

[0021] Embodiment 1:

[0022] Reference Figure 1 , Figure 2 , Figure 3 , is a schematic diagram of the structure of an embodiment of the utility model, including a soil disintegration fixture under adjustable load, mainly including a top plate 1 and a bottom plate 2, the top plate 1 is welded with a top plate node 5 and a vertical rod 7, the bottom plate 2 is welded with a bottom plate node 6, and a column 4 connects the top plate node 5 and the bottom plate node 6, so that the top plate 1 and the bottom plate 2 are combined into a whole;

[0023] The top plate 1 is circular, with a diameter of 50 mm, which is consistent with the radius of the test standard soil sample. The top plate 1 is 15 mm thick, and four top plate nodes 5 are welded on the side edges of the top plate in a centrally symmetrical form.

[0024] The top plate node 5 is 20mm long, 15mm wide and 15mm high, and has four cylindrical bearings welded horizontally in two rows and two columns inside. The cylindrical bearings are composed of an outer wall, a ball and an inner tube. The cylindrical bearings are 5mm in diameter and 10mm high. The net spacing between the two rows of cylindrical bearings is 10mm. The top plate node 5 is a through-type, and its opening size is 5mm×10mm. The column 4 can completely penetrate the top plate node, so that the top plate 1 can move horizontally downward as the sample disintegrates.

[0025] The bottom plate 2 is circular, with a diameter of 50 mm, which is consistent with the radius of the test standard soil sample. The bottom plate 2 is 15 mm thick, and four bottom plate nodes 6 are welded on the side edges of the bottom plate in a centrally symmetrical form.

[0026] The bottom plate node 6 is open, with an opening at the top and a closed bottom, and the opening size is 5mm×10mm. The four bottom plate nodes 6 are respectively used to fix four columns 4, and the columns 4 can be inserted into the bottom plate nodes 6 but cannot penetrate them.

[0027] The cross section of the column 4 is rectangular and has a size of 5mm×10mm. After the top of the column 4 is inserted into the top plate node 5, the top plate remains horizontal and can slide up and down. The surface of the column 4 is engraved with scales for observing and recording the height changes of the soil sample during the disintegration process.

[0028] A circular vertical rod 7 is welded at the center of the upper part of the top plate 1 . The vertical rod has a diameter of 10 mm and a height of 50 mm and is used to pass through and fix the pressing block 3 .

[0029] The shape of the pressing block 3 is a hollow circle, the outer diameter of which cannot be greater than 50 mm, and the inner diameter is consistent with the cross-sectional size of the vertical rod 7, so that the vertical rod 7 can pass through the pressing block. The number of pressing blocks 3 can be increased or decreased according to test requirements.

[0030] Finally, it should be noted that the above-mentioned embodiments are only specific implementation methods of the utility model, which are used to illustrate the technical solutions of the utility model, but not to limit them. The protection scope of the utility model is not limited to this. Although the utility model is described in detail with reference to the above-mentioned embodiments, ordinary technicians in this field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-mentioned embodiments within the technical scope disclosed by the utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model, and should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope described in the claims.

Claims

1. A soil disintegration fixture under adjustable load, It is characterized in that Including top plate, top plate node, bottom plate, bottom plate node, column, vertical rod, and pressure block; The top plate is circular, and its diameter is consistent with the diameter of the test standard soil sample. Four top plate nodes are welded on the side edges of the top plate in a centrally symmetrical form. The bottom plate is circular, and its diameter is consistent with the diameter of the test standard soil sample. Four bottom plate nodes are welded on the side edges of the bottom plate in a centrally symmetrical form. One end of the column passes through the top plate node, and the other end is fixed to the bottom plate node, so that the top plate and the bottom plate are connected to form a whole.

2. A soil disintegration fixture under adjustable load according to claim 1, It is characterized in that There are four cylindrical bearings in two rows and two columns welded inside the top plate node. The cylindrical bearings are composed of an outer wall, balls and an inner tube. The cylindrical bearings are welded inside the node. The net spacing between the two rows of rollers is consistent with the thickness of the column. The top plate node is a through-type, and the column can completely penetrate the top plate node, so that the top plate can move horizontally downward as the sample disintegrates.

3. A soil disintegration fixture under adjustable load according to claim 1, It is characterized in that Four bottom plate nodes are welded at the side edge of the bottom plate in a centrally symmetrical form. The bottom plate nodes are open, and the columns can be inserted into the bottom plate nodes from the upper part of the bottom plate nodes. The four bottom plate nodes are used to fix four columns.

4. A soil disintegration fixture under adjustable load according to claim 1, It is characterized in that The cross section of the column is rectangular. After the top of the column is inserted into the top plate node, the top plate remains horizontal and can slide up and down. There are scales engraved on the surface of the column to observe and record the changes in the height of the soil sample during the collapse process.

5. A soil disintegration fixture under adjustable load according to claim 1, It is characterized in that A vertical rod is welded to the center of the upper part of the top plate, and the cross section of the vertical rod is circular and the shape is rod-like, which is used to pass through and fix the pressing block.

6. A soil disintegration fixture under adjustable load according to claim 1, It is characterized in that The shape of the pressing block is a hollow circle, the size of which is consistent with the cross-sectional size of the vertical rod, and the number of pressing blocks can be increased or decreased according to test requirements.

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