CN209878443U - Sample preparation device for geotechnical test - Google Patents

Abstract

The patent of the utility model discloses a geotechnical test's system appearance device, the device includes bottom plate, box, pressure device and mould, and the box includes main baffle, side shield, movable baffle and buckle, and main baffle and side shield pass through welded fastening on the bottom plate, and pressure device includes main base, vice base, bracing piece, rocker, main transfer line, vice transfer line, telescopic link and firming board. The utility model discloses solid not unidimensional mould of accessible card, through pressure device to soil applied pressure completion system appearance, the work load of laboratory soil sample preparation can be reduced in this experiment, shortens the operating time of soil sample preparation, improves the homogeneity and the efficiency of geotechnique's sample preparation, can accomplish not unidimensional soil sample preparation simultaneously.

Description

Sample preparation device for geotechnical test

Field of the invention

The utility model belongs to civil engineering laboratory glassware, concretely relates to geotechnical test's system appearance device.

Background

When a rock-soil body is tested in a laboratory, a soil body needs to be compacted, a rock-soil sample with certain density and shape is pressed by utilizing a mould, and then a series of physical and mechanical tests are carried out on the soil sample. According to the national geotechnical test regulations, the compactness of the prepared soil sample needs to be strictly controlled so as to ensure the uniformity of the parallel samples and the requirements of the contrast and effectiveness of experimental data. At present, most methods for pressing soil samples are to place soil into a mold and utilize a heavy object to extrude the soil for multiple times to prepare the samples, so that the method greatly increases the workload of experiments, causes uneven pressing of the soil samples and has larger difference between the uniformity and the quality of each soil sample. Although a multi-functional system appearance ware (CN201410144259) of geotechnical engineering triaxial test soil sample preparation, a dual compression soil sample preparation device (CN201711077545), a semi-automatic hollow cylinder soil sample preparation device (CN201820195321) has made the improvement to traditional soil sample preparation method, work load when reducing to carry out soil sample preparation, however, some of these devices can only carry out the preparation of single size soil sample, can't satisfy the requirement of making not unidimensional soil sample, need mention the heavy object repeatedly a bit and extrude, greatly increased experimental work load, for solving above-mentioned problem the utility model provides a simple and fast geotechnical test's system appearance device.

SUMMERY OF THE UTILITY MODEL

The technical problem is as follows:

in order to improve homogeneity and the efficiency of geotechnical test sample preparation, the utility model provides a system appearance device of geotechnical test.

The technical scheme is as follows:

in order to achieve the above object, the utility model provides a geotechnical test's system appearance device, its characterized in that: the device comprises a bottom plate, a box body, a pressure device and a mould;

the box body comprises a main baffle, a side baffle, a movable baffle and a buckle, wherein the main baffle and the side baffle are fixed on the bottom plate through welding;

the pressure device comprises a main base, an auxiliary base, a supporting rod, a rocker, a main transmission rod, an auxiliary transmission rod, a telescopic rod and a soil compacting plate, wherein the main base is welded on a bottom plate, the auxiliary base is arranged on the main base, the supporting rod is inserted into the main base through the auxiliary base, the supporting rod is fixedly connected with the main transmission rod, the rocker is arranged on the main transmission rod, the main transmission rod is connected with the auxiliary transmission rod through an inner transmission shaft, the telescopic rod is fixedly connected to the end part of the auxiliary transmission rod, and the soil compacting plate is connected with the telescopic rod through a.

As an improvement of the utility model, the side shield has two, and two side shields all are equipped with the spout, and movable baffle's tip is installed in the spout.

As another improvement of the utility model, the upper surface of the bottom plate is made of an anti-skid material with the thickness of 2 mm.

As another improvement of the utility model, the mould can be one of cylinder, cuboid and square, and the size of the firming plate is unanimous with the internal diameter of mould, and the firming plate is removable and replaceable.

Has the advantages that:

compared with the prior art, the utility model discloses the beneficial effect who has is:

1. the device improves the uniformity of the manufacture of the soil sample, improves the quality of the soil sample and reduces the difference of each soil sample.

2. The device utilizes the mechanical device to reduce the workload of soil sample preparation and save time and labor cost.

3. The device can be used for manufacturing soil samples of different sizes, and the test cost is reduced

Drawings

FIG. 1 is a schematic view of a sample preparation device for geotechnical test.

In the figure: 1. bottom plate, 2, side shield, 3, main baffle, 4, buckle, 5, spout, 6, movable baffle, 7, main base, 8, vice base, 9, bracing piece, 10, rocker, 11, main transfer line, 12, vice transfer line, 13, telescopic link, 14, soil compacting board, 15, mould.

Detailed Description

The utility model provides a geotechnical test's system appearance device, its characterized in that: the device comprises a bottom plate 1, a box body, a pressure device and a mould 15;

the box body comprises a main baffle 3, a side baffle 2, a movable baffle 6 and a buckle 4, wherein the main baffle 3 and the side baffle 2 are fixed on the bottom plate 1 through welding;

the pressure device comprises a main base 7, an auxiliary base 8, a support rod 9, a rocker 10, a main transmission rod 11, an auxiliary transmission rod 12, a telescopic rod 13 and a soil compacting plate 14, wherein the main base 7 is welded on the bottom plate 1, the auxiliary base 8 is arranged on the main base 7, the support rod 9 is inserted into the main base 7 through the auxiliary base 8, the support rod 9 and the main transmission rod 11 are fixedly connected, the rocker 10 is arranged on the main transmission rod 11, the main transmission rod 11 and the auxiliary transmission rod 12 are connected through an inner transmission shaft, the telescopic rod 13 is fixedly connected to the end portion of the auxiliary transmission rod 12, and the soil compacting plate 14 is connected with the telescopic rod 13 through a.

As an improvement of the utility model, there are two side baffles 2, two side baffles 2 are provided with a sliding groove 5, the end of a movable baffle 6 is installed in the sliding groove 5, the sliding groove 5 can provide the movable baffle 6 to move in the horizontal direction to adapt to molds with different sizes, after the size is adjusted, the movable baffle 6 can be fixed by a buckle 4, a mold 15 is clamped and fixed, a support rod 9 is inserted into a groove of a main base 7 and an auxiliary base 8 to move up and down, after a soil sample with one third of the total amount is filled in the mold 15, a soil pressing plate 14 is aligned with the mold and goes deep into the mold to be extruded, a groove of the auxiliary base 8 can adjust the size to fix the support rod 9, the support rod 9 is prevented from moving up and down, a rocker 10 is rotated to drive a mechanical device in the main transmission rod 11 and an auxiliary transmission rod 12 to make a telescopic rod 13 descend to drive the soil, until compaction, after the compaction, the size of the groove of the auxiliary base 8 is adjusted, so that the supporting rod 9 can move upwards to extend out of the mold 15, after the hair is scraped, the soil sample is added again, the compaction is carried out until the manufacture of one soil sample is completed, the buckle 4 of the movable baffle 6 is loosened, the mold 15 is taken out, and the next mold is put in.

As another kind of improvement of the utility model, the upper surface of bottom plate 1 is the anti-skidding material that one deck 2mm is thick, and anti-skidding material can be rubber material, increases the frictional force between 15 of mould and the bottom plate 1 to improve 15's of mould stability.

As another improvement of the present invention, the mold 15 may be one of a cylinder, a rectangular parallelepiped and a cube, the size of the soil compacting plate 14 is the same as the inner diameter of the mold 15, and the soil compacting plate 14 is removable.

The specific operation method comprises the following steps:

a. selecting a proper mould 15, and coating vaseline on the bottom cover and the cup wall of the mould;

b. placing the mold in a box body, adjusting a movable baffle 6, fixing the baffle, and fixing the movable baffle through a buckle 4;

c. adding one third of the soil amount required for manufacturing the soil sample into the mold 15, lifting the support rod 9 upwards to separate the support rod from the main base 7, aligning the soil pressing plate 14 at the tail end of the telescopic rod 13 with the mold 15, putting down, fixing the auxiliary base 8, rotating the rocker 10, and applying pressure to the soil sample by the soil pressing plate 14 for compaction;

d. c, lifting the supporting rod 9, continuously adding one third of the required soil, and repeating the step c after shaving;

e. and after all the soil is added, removing the buckle 4, taking out the mold 15, scraping the surface of the mold by using a geotechnical knife to finish the soil sample preparation, and preparing the next group of soil sample preparation.

Claims (4)

1. The utility model provides a system appearance device of geotechnical test which characterized in that: the device comprises a bottom plate, a box body, a pressure device and a die, wherein the box body comprises a main baffle, a side baffle, a movable baffle and a buckle, the main baffle and the side baffle are fixed on the bottom plate through welding, the pressure device comprises a main base, an auxiliary base, a supporting rod, a rocker, a main transmission rod, an auxiliary transmission rod, a telescopic rod and a soil compacting plate, the main base is welded on the bottom plate, the auxiliary base is arranged on the main base, the supporting rod is inserted into the main base through the auxiliary base, the supporting rod and the main transmission rod are fixedly connected, the rocker is arranged on the main transmission rod, the main transmission rod and the auxiliary transmission rod are connected through an inner transmission shaft, the telescopic rod is fixedly connected at the end part of the auxiliary transmission.

2. The soil test sample preparation device of claim 1, wherein: the side baffle has two, and two side baffles all are equipped with the spout, and movable baffle's tip is installed in the spout.

3. The soil test sample preparation device of claim 1, wherein: the upper surface of the bottom plate is a layer of non-slip material with the thickness of 2 mm.

4. The soil test sample preparation device of claim 1, wherein: the mould can be one of cylinder, cuboid and square, and the size of the loam board is unanimous with the internal diameter of mould, and the loam board is removable.