CN208187733U - A kind of artificial multistage drawing out soil equipment - Google Patents

Abstract

The utility model discloses a kind of artificial multistage drawing out soil equipment, mainly it is made of manual turning handle, hold-down support, sleeve, cutting ring, cap bag and 6 part of blade part, the sleeve inner is equipped with cutting ring groove, multiple cutting rings can be placed, the cap bag and blade part are respectively arranged with threaded hole, can be integral with sleeve connection, sleeve can be made up of cap bag tenon structure with the hold-down support for being mounted with manual turning handle whole.The multiple groups soil sample that same observation station different depth can be once obtained using the utility model avoids excavating the large area of compacted lift, and soil sample volume accuracy is higher, and smaller to soil disturbance, test result is more accurate reliable.

Description

A kind of artificial multi-stage soil fetching device

technical field

The utility model relates to a soil fetching device, in particular to an artificial multi-stage soil fetching device.

Background technique

As one of the key evaluation indexes of highway subgrade construction quality, the degree of compaction reflects the density of soil after compaction. The ring knife method is usually used to test the degree of compaction on site. "Technical Specifications for Highway Subgrade Construction" (JTG F10-2006) stipulates that when using the ring knife method for compaction testing, the middle of the ring knife should be 1/2 of the compacted layer depth. In the actual testing process, in order to obtain soil samples at 1/2 of the compacted layer, it is necessary to excavate the surface soil at the measuring point to a certain depth, and then drive the ring knife into the soil by hammering. However, domestic scholars have found that the compaction effect of the surface and deep layers of the compacted layer of the filled roadbed is often worse than that of the middle layer. Therefore, the dry density at 1/2 the thickness of the compacted layer is used as the representative value of the compaction degree, and its representativeness remains to be seen. further research.

Although the current ring knife soil fetching device is light and handy, easy to carry and carry, but the hammer hammering is easy to deform the ring knife and cause disturbance to the compacted layer soil, thereby affecting the test accuracy. At the same time, because the ring knife device in the current specification still has problems such as low volume accuracy of the soil sample taken and large-scale excavation of the compacted layer, it is difficult to adapt to the gradual increase in the thickness of the compacted layer as the function of the compaction machine improves. the trend of.

Utility model content

The purpose of the utility model is to provide an artificial multi-stage soil fetching device for the shortcomings of the existing ring knife soil fetching device. The device can avoid the impact of hammering on test results, reduce the excavation of compacted layers, improve the accuracy of soil samples taken and obtain soil samples of different depths at the same time.

In order to realize the above-mentioned purpose of the invention, the present invention adopts following technical scheme:

The artificial multi-stage soil fetching device is mainly composed of a manual handle, a fixed support, a sleeve, a ring knife, a cap and a blade; a ring knife groove is arranged in the sleeve, and multiple ring knives, sleeve caps and blades can be placed. The parts are provided with threaded holes, which can be connected with the sleeve as a whole, and the sleeve can be mortized and joined with the fixed support with the manual handle through the tenon structure of the sleeve cap.

The upper part of the sleeve cap is a tenon structure, and the lower part is provided with a threaded hole, which can be connected with the sleeve through the threaded hole; the upper part of the annular blade of the blade is provided with a threaded hole, which can be connected with the sleeve through the threaded hole.

There are multiple ring knife grooves inside the sleeve, which can be loaded and unloaded with ring knife test pieces; the sleeve is composed of two parts, the left half and the right half. The cap and the blade are connected into a solid whole.

The barrel mold is set in a groove structure, which can match the arc-shaped tenon structure of the slider, and the two parts can be formed into a whole by tenon joint.

The fixed support is provided with a directional cylinder and a fixed hole, which can ensure that the sleeve penetrates the fixed hole vertically into the soil; the fixed support is set by a fixed pin.

There is a tenon groove under the manual handle, which can drive the sleeve to drill into the soil through the tenon structure above the cap.

Compared with the prior art, the utility model has the advantages of:

It can reduce the excavation of the compacted layer, ensure the stable force of the sleeve during the sampling process, the soil inside the ring cutter is complete, and the measurement accuracy is high; the compaction degree of different depths of the compacted layer can be obtained at one time; at the same time, it can be used according to different The depth of compaction analyzes the change law of the dry density of the compacted layer, and the test results can better reflect the actual compaction effect of the compacted layer.

Description of drawings

Fig. 1 is the front view of the structure of the artificial multi-stage earth taking device of the present invention.

Fig. 2 is a front view of the structure details of the manual handle in Fig. 1.

Fig. 3 is a detailed front view of the structure of the fixed support in Fig. 1 .

Fig. 4 is a front view and a cross-sectional view of the sleeve in Fig. 1 .

Fig. 5 is a cross-sectional view of the cap and blade in Fig. 1 .

In the figure: 1. Manual turning handle; 1-1. Manual turntable; 1-2. Tenon groove; 2. Fixed support; 2-1. Orienting cylinder; 2-2. Fixing hole; 3. Cap; 3 -1, connecting tenon; 3-2, threaded hole; 4, sleeve; 4-1, ring knife; 4-2, threaded hole; 5, knife edge; 5-1, threaded hole; 5-2, groove Groove blade; 6, fixed pin.

Detailed ways

The technical solution of the utility model is described in further non-limiting detail below in conjunction with examples and accompanying drawings.

1. The basic structure of the test mold of the artificial multi-stage soil borrowing device:

As shown in Figures 1 to 5, an artificial multi-stage soil fetching device is mainly composed of a manual handle 1, a fixed support 2, a sleeve 4, a ring knife 4-1, a cap 3 and a knife edge 5; The sleeve 4 is provided with a ring cutter groove, which can place a plurality of ring cutters 4-1. The sleeve cap 3 and the blade portion 5 are respectively provided with a threaded hole 3-2 and a threaded hole 5-1, which can be connected with the sleeve 4. Connected as a whole, the sleeve 4 can be mortised and joined together with the fixed support 2 on which the manual handle 1 is installed through the connecting tenon 3-1 of the sleeve cap 3 .

2. How to use the artificial multi-stage soil extraction device:

1. Coat the inner wall of the ring knife 4-1 and the sleeve 4 with vaseline, install the cap 3, the ring knife 4-1 and the blade part 5 and the sleeve 4 as a whole, and pass through the threaded hole 3-2, the threaded hole 4-2 is fixed with threaded hole 5-2.

2. Insert the cutting edge of the integrated sleeve 4 downward into the soil body at the measuring point, and mortise and mortise the fixed support 2 with the manual handle 1 and the sleeve 4.

3. Turn the manual turntable 1-1 at a constant speed to slowly drill the sleeve 4 into the soil until the bottom of the handle touches the bottom plate. At this time, the sleeve is just filled with soil samples.

4. Detach the fixed support 2 and the manual handle 1 from the sleeve 4, take out the sleeve 4 filled with soil samples, open the sleeve and use a knife to cut off the sleeve 4 along the inner wall of the sleeve 4. The ring knife full of soil samples was taken out completely, and the mass of the ring knife specimen, the moisture content of the soil sample and the calculated compaction degree were measured according to the specifications.

Claims (5)

1. a kind of artificial multistage drawing out soil equipment, it is characterised in that: mainly by manual turning handle, hold-down support, sleeve, cutting ring, cap bag It is formed with 6 part of blade part；It is provided with cutting ring groove in the sleeve, multiple cutting rings, the cap bag and knife edge part can be placed Be not provided with threaded hole, can be integral with sleeve connection, sleeve can by cap bag tenon structure be mounted with consolidating for manual turning handle It is integral to determine support joggle.

2. artificial multistage drawing out soil equipment according to claim 1, it is characterised in that: the cap bag top is tenon structure, Lower part is provided with threaded hole, can pass through threaded hole and sleeve connection；It is provided with threaded hole above the blade part circular blade, it can Pass through threaded hole and sleeve connection.

3. artificial multistage drawing out soil equipment according to claim 1, it is characterised in that: the sleeve inner is provided with multiple rings Knife groove, can quick despatch cutting ring test specimen；The sleeve is made of left side and right side two parts, using sawtooth pattern bumps knot Structure can connect into firm entirety by threaded hole and cap bag, blade part with respect to grafting.

4. artificial multistage drawing out soil equipment according to claim 1, it is characterised in that: the hold-down support is provided with directional tube With fixation hole, it is ensured that sleeve passes through fixation hole and vertically pierces the soil body；Hold-down support is equipped with fixed pin, prevents that soil is taken to take in the process Native device shakes.

5. artificial multistage drawing out soil equipment according to claim 1, it is characterised in that: the manual turning handle is with hold-down support Non-removable entirety, is installed in process of production；It is provided with tenon slot below the manual turning handle, it can be by cap bag Square tenon structure band moving sleeve pierces the soil body.