A dilatometer for geotechnical testing

Abstract

The present application relates to an expansion meter for geotechnical testing, comprising a support bin, wherein two sliding rails are provided at the inner bottom end of the support bin, a fixed slide is placed on the inner side of the support bin, pulleys are connected to the four corners of the bottom end of the fixed slide, the pulleys are slidably embedded in the sliding rails, a detection tank is placed on the top of the fixed slide, and the present solution realizes the function of holding soil through the structure of the fixed slide, pulley, detection tank, shaking chute, annular gear, fixed frame, connecting slider, rotating rod and half-moon gear, and compared with the prior art, the present solution has the function of compaction, and the detection tank is made to shake left and right through the arc-shaped cooperation of the annular gear, connecting slider, rotating rod and half-moon gear, thereby realizing the compaction effect, during which the fixed slide, pulley, shaking chute and fixed frame all play the role of stable support.

Description

Technical Field

[0001] The present application relates to the technical field of dilatometers, and in particular to a dilatometer used for geotechnical testing. Background Art

[0002] In civil engineering processes, it is often necessary to conduct soil expansion tests to determine whether it meets the foundation construction standards. Therefore, an expansion meter is needed. The specific operation is to put the soil into a test cylinder, add water to the soil, and detect the amount of soil expansion.

[0003] Compared with the actual use process, one of the existing expansion meters currently does not compact the gaps between the soil during the expansion test, which makes the initial volume of the soil inaccurate, which causes the expansion rate of the soil in the final test to be inaccurate, resulting in an error in the overall judgment direction.

[0004] Therefore, in order to solve the above problems, the present application provides a dilatometer for geotechnical testing.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to solve the problem of soil not being compacted, the present application provides a dilatometer for geotechnical testing.

[0007] The present application provides an expansion meter for geotechnical testing, comprising a support bin, wherein two sliding rails are provided at the inner bottom end of the support bin, a fixed slide is placed on the inner side of the support bin, pulleys are connected to the four corners of the bottom end of the fixed slide, the pulleys are slidably embedded in the sliding rails, a detection tank is placed on the top of the fixed slide, a shaking groove is provided through the outer side of one end of the support bin, a connecting slider is slidably embedded in the inner side of the shaking groove, one end of the connecting slider is connected to an annular tooth on the outer side surface of one end of the support bin, a fixing frame is welded on the outer side surface of one end of the support bin, a rotating rod is slidably embedded in the inner side of the fixing frame, and a half-moon gear is welded on the other end of the rotating rod.

[0008] Preferably, the outer side of the half-moon gear is meshed with the inner side of the annular tooth, and the annular tooth is connected to the fixed slide seat via a connecting slide block.

[0009] Preferably, a limiting groove is provided in the middle of the top end of the fixed slide seat, a T-shaped clamping rod is welded to the bottom end of the detection tank, and the T-shaped clamping rod is embedded in the limiting groove.

[0010] Preferably, a detection frame is welded to the outer side of one end of the support bin, a pressing screw is spirally fixed to the top end of the detection frame, and a measuring tooth surface is provided on the outer side surface of one end of the pressing screw.

[0011] Preferably, the scale of the measuring tooth surface is opened at the bottom end of the pressing screw, and the bottom end of the pressing screw is at the top end of the detection tank.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. The soil holding function is realized by fixing the slide seat, pulley, detection tank, shaking chute, annular gear, fixed frame, connecting slider, rotating rod and half-moon gear structure. Compared with the prior art, it has the function of compaction. The detection tank is shaken left and right through the arc-shaped coordination of the annular gear, connecting slider, rotating rod and half-moon gear, thereby achieving the compaction effect. During this period, the fixed slide seat, pulley, shaking chute and fixed frame all play a role of stable support. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the support bin installation structure in Example 1 of the present application;

[0015] Figure 2 is a cross-sectional view of the detection tank in Example 1 of the present application;

[0016] Figure 3 It is a schematic diagram of the annular gear installation structure in Example 1 of the present application.

[0017] Explanation of the reference numerals in the accompanying drawings: 1. Support bin; 2. Sliding rail; 3. Fixed slide seat; 4. Pulley; 5. Detection tank; 6. Shaking slide groove; 7. Annular gear; 8. Fixed frame; 9. Rotating rod; 10. Half-moon gear; 11. Limiting groove; 12. T-shaped clamping rod; 13. Detection frame; 14. Pressing screw; 15. Measuring tooth surface; 16. Connecting slider. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0019] Embodiment 1

[0020] Reference Figure 1-Figure 3, a dilatometer for geotechnical testing, comprising a support bin 1, two sliding rails 2 are provided at the inner bottom end of the support bin 1, a fixed slide seat 3 is placed inside the support bin 1, pulleys 4 are connected at the four corners of the bottom end of the fixed slide seat 3 to reduce the friction during shaking, the pulleys 4 are slidably embedded in the sliding rail 2, a detection tank 5 is placed on the top of the fixed slide seat 3, a shaking slide groove 6 is provided on the outer side of one end of the support bin 1, a connecting slide block 16 is slidably embedded in the shaking slide groove 6, one end of the connecting slide block 16 is connected to a ring tooth 7 on the outer surface of one end of the support bin 1, a fixed frame 8 is welded to the outer surface of one end of the support bin 1, a rotating rod 9 is slidably embedded in the inner side of the fixed frame 8, a half-moon gear 10 is welded to the other end of the rotating rod 9, and the outer side of the half-moon gear 10 is connected to the outer surface of the half-moon gear 10. The inner sides of the annular teeth 7 are meshed. In order to achieve the purpose of compacting the soil, the annular teeth 7 are connected to the fixed slide 3 through a connecting slider 16. In order to connect the transmission mechanism with the measuring mechanism, a limiting groove 11 is provided in the middle of the top of the fixed slide 3. A T-shaped clamping rod 12 is welded at the bottom end of the detection tank 5, and the T-shaped clamping rod 12 is embedded in the limiting groove 11. In order to facilitate the installation and disassembly of the detection tank 5 and to facilitate cleaning, a detection frame 13 is welded to the outside of one end of the support bin 1, and a pressing screw 14 is spirally fixed to the top of the detection frame 13. A measuring tooth surface 15 is provided on the outer surface of one end of the pressing screw 14. The scale of the measuring tooth surface 15 is provided at the bottom end of the pressing screw 14, and the bottom end of the pressing screw 14 is at the top of the detection tank 5, in order to facilitate the measurement of the soil height.

[0021] Working principle: First, the operator pours the soil into the detection tank 5, then holds the detection tank 5, inserts the detection tank 5 into the limiting groove 11 opened at the bottom of the fixed slide 3 through the T-shaped clamping rod 12 welded at the bottom, and then rotates the detection tank 5. At this time, the T-shaped clamping rod 12 at the bottom of the detection tank 5 will be limited with the fixed slide 3. After the detection tank 5 is limited, the operator needs to rotate the rotating rod 9, and the rotating rod 9 will drive the half-moon gear 10 welded at the other end to rotate. During this period, the fixed frame 8 welded on the outside of the support bin 1 will support the rotation of the rotating rod 9. Provide support. As the half-moon gear 10 rotates, the half-moon gear 10 will drive the annular gear 7 to shake left and right through the staggered meshing with the top and bottom of the inner side of the annular gear 7. As the annular gear 7 shakes left and right, it will also drive the fixed slide 3 welded at one end through the connecting slider 16 to shake left and right. At that time, the fixed slide 3 will slide inside the sliding rail 2 opened at the inner bottom end of the support bin 1 through the pulleys 4 connected at the four corners of the bottom. As the fixed slide 3 shakes left and right, the detection tank 5 at the top of the fixed slide 3 will also shake.

[0022] As the shaking proceeds, the soil inside the detection tank 5 will be vibrated and compacted. After the soil is completely compacted, the operator needs to rotate the pressing screw 14 inside the detection frame 13. Since the detection frame 13 is welded to one side of the support bin 1 and is located above the detection tank 5, as the pressing screw 14 rotates downward, the bottom end of the pressing screw 14 will contact the top of the compacted soil, and then the height from the top surface of the soil to the detection tank 5 is measured through the measuring tooth surface 15 provided on the outer surface of the pressing screw 14. 5 is subtracted from the inner height of the detection tank 5 to calculate the soil height. Then, the volume of the compacted soil can be calculated by the soil height and the inner bottom radius of the detection tank 5. Then, the pressing screw 14 is retracted, and water is injected into the detection tank 5. After the soil is completely soaked by water, the pressing screw 14 is turned down again. After the bottom of the pressing screw 14 contacts the soil, it stops rotating. Then, the volume of the soil after being soaked with water is calculated. The soil expansion rate can be calculated based on the obtained data, so as to judge whether the soil is suitable for civil engineering.

[0023] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dilatometer for geotechnical testing, comprising a support chamber (1), characterized in that: Two sliding rails (2) are provided at the bottom inner end of the support bin (1), a fixed slide seat (3) is placed inside the support bin (1), pulleys (4) are connected to the four corners of the bottom end of the fixed slide seat (3), and the pulleys (4) are slidably embedded in the sliding rails (2), and a detection tank (5) is placed on the top of the fixed slide seat (3). A shaking groove (6) is provided through the outer side of one end of the support bin (1), and a connecting slide block (16) is slidably embedded in the inner side of the shaking groove (6), and one end of the connecting slide block (16) is connected to a ring tooth (7) on the outer surface of one end of the support bin (1), and a fixed frame (8) is welded on the outer surface of one end of the support bin (1), and a rotating rod (9) is slidably embedded in the inner side of the fixed frame (8), and a half-moon gear (10) is welded on the other end of the rotating rod (9).

2. A dilatometer for geotechnical testing according to claim 1, characterized in that: The outer side of the half-moon gear (10) meshes with the inner side of the annular gear (7), and the annular gear (7) is connected to the fixed slide seat (3) via a connecting slide block (16).

3. A dilatometer for geotechnical testing according to claim 1, characterized in that: A limiting groove (11) is provided in the middle of the top of the fixed slide seat (3), and a T-shaped clamping rod (12) is welded to the bottom of the detection tank (5), and the T-shaped clamping rod (12) is embedded in the limiting groove (11).

4. A dilatometer for geotechnical testing according to claim 1, characterized in that: A detection frame (13) is welded to the outside of one end of the support bin (1), a pressing screw (14) is screwed fixed to the top of the detection frame (13), and a measuring tooth surface (15) is provided on the outside surface of one end of the pressing screw (14).

5. A dilatometer for geotechnical testing according to claim 4, characterized in that: The scale of the measuring tooth surface (15) is opened at the bottom end of the pressing screw (14), and the bottom end of the pressing screw (14) is located at the top end of the detection tank (5).

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