CN209992204U - A new portable earth drill - Google Patents

Abstract

The utility model discloses a new portable soil drill, comprising a handle, an inner rod, an outer rod, an ear hole, a longitudinal seam, a movable half-cylinder, a fixed half-cylinder, a U-shaped buckle and a foot pedal, wherein the inner rod is connected with the handle , there are two screw holes, an upper screw hole and a lower screw hole, the outer rod is connected with the fixed half-cylinder, and there is a screw hole, the middle of the screw hole is fixed by a screw, and the longitudinal slit is opened on the fixed half-cylinder , the movable half-cylinder is combined with the fixed half-cylinder through a hinge, the foot pedal is fixed above the fixed half-cylinder, the ear holes are respectively located on both sides of the fixed half-cylinder and the movable half-cylinder opening, and the U-shaped buckle is used for to secure the ear holes. The utility model saves time and labor when taking out soil, is convenient in taking out soil samples in an earth drill, and reduces the disturbance to the soil body itself. In addition, the inner rod can be retracted when not in use to reduce the volume and facilitate portability.

Description

A new portable earth drill

technical field

The utility model relates to the technical field of soil collection tools, in particular to a simple and portable new soil drill for collecting soil samples.

Background technique

Due to different geographical locations, soils in nature have different textures and complex components. In the biological environment, soil is the carrier of life, and its physical and chemical properties are affected by many factors. Therefore, many academic fields involve soil experimental research.

In the experiment of soil research, the most important step is the collection of soil samples, especially the collection of deep soil samples. Field workers usually need to collect samples with different soil textures and complex soil conditions. Soil drills are currently the most convenient tool for soil collection. The traditional T-shaped soil drill is mainly composed of a handle, a drill pipe, a push head, a pedal plate and a cylindrical hollow drill bit. During the soil extraction process, the drill bit needs to be rotated and pressed into the soil by manpower, and the soil will be attached against the push head. The telescopic drill rod moves upward, and after pulling out the drill bit, manpower is required to press the drill rod downwards to push the soil sample out of the drill bit through the push head. The soil borrowing process is very simple, but when the soil is pushed out manually in the later stage, since the deep soil is usually very viscous and has a strong bond with the inner wall of the drill bit, it takes a lot of manpower to push the soil out of the drill bit, and sometimes it is necessary to push the soil out of the drill bit. With the help of external force, this may damage the equipment, which is not only time-consuming and labor-intensive, but also inefficient. Soil test studies often require the collection of multiple test samples, requiring more time-saving and labor-saving operating equipment. The most important thing is that the physical and chemical properties of the soil samples have undergone great changes under the action of large external forces, especially the physical properties of the soil, which are too different from the undisturbed soil, which brings huge difficulties for subsequent experimental research. , the experimental accuracy decreases, the measured original data is imprecise, and the results are not rigorous.

In view of the above problems, how to design a soil drill that saves time and effort and has less influence on the physical and chemical properties of soil samples is the main technical problem that needs to be solved at present.

Utility model content

The utility model solves the problems of time-consuming and labor-intensive soil borrowing operation and large interference to the original soil aggregate structure in the existing field soil borrowing operation.

In order to solve the above-mentioned problems, the scheme that the utility model provides is:

A new portable soil drill includes a handle, an inner rod, an outer rod, ear holes, a longitudinal seam, a movable half cylinder, a fixed half cylinder, a U-shaped buckle, and a foot pedal. The inner rod is connected with the handle and has an upper screw. The outer rod is connected with the fixed half cylinder, and there is a screw hole on the top, the middle of the screw hole is fixed by a screw, the longitudinal slit is opened on the fixed half cylinder, and the movable half cylinder is opened. The barrel is combined with the fixed half barrel through a hinge, the foot pedal is fixed above the fixed half barrel, the ear holes are respectively provided on both sides of the opening of the fixed half barrel and the movable half barrel, and the U-shaped buckle is used to fix the ear holes.

Further, the distances from the lower screw hole of the inner rod to the handle and the screw hole of the outer rod to the fixed half cylinder are equal.

Further, the foot rod is perpendicular to the fixed half cylinder.

Further, a certain distance is left above the fixed half-cylinder, which is sufficient for hinged connection of the movable half-cylinder.

Further, the ear holes can fit well when the movable half-tube and the fixed half-tube are closed.

Further, the diameter of the U-shaped buckle is slightly smaller than the diameter of the ear hole.

Further, after the movable half cylinder is combined with the fixed half cylinder, the whole is larger than the ring knife, and the incision is an ellipse.

Compared with the existing earth drill, the utility model has the following benefits:

(1) The rod length of the utility model can be adjusted. When not in use, the drill rod can be shrunk, which is convenient for carrying; when in use, the drill rod is stretched, which is convenient for soil extraction, and the screws can be screwed by hand, and no extra equipment is required.

(2) The utility model can directly take out the soil sample by rotating the movable half cylinder after taking out the soil, without unnecessary disturbance to the undisturbed soil, thereby reducing the damage to the aggregate structure of the soil sample and reducing the impact on the experimental results. In addition, the ear hole is fixed by the U-shaped buckle, which saves time and effort, and can speed up the progress of soil extraction.

Description of drawings

Figure 1 is a side view of the overall structure of the utility model.

Figure 2 is a front view of the overall structure of the utility model and a U-shaped buckle.

In the figure: 1, handle; 21, outer rod screw hole; 22, upper screw hole of inner rod; 23 lower screw hole of inner rod; 3, inner rod; 4, outer rod; 5, hinge; 6, ear hole; 7, vertical 8. Active half-tube; 9. Fixed half-tube; 10. U-shaped buckle; 11. Foot pedal.

Detailed ways

The embodiments of the present utility model will be further clearly described below, which will be described in detail with reference to the accompanying drawings rather than being limited. It should be pointed out that the terms used herein mainly indicate device combinations, existing features and operation steps.

From the introduction in the background art, traditional soil drills are bulky, inconvenient to carry, and not only time-consuming and laborious in the process of soil extraction, but also destroys the physical and chemical properties of soil samples. This application mainly introduces a new design to solve the above technical problems.

A preferred embodiment of the present invention. As shown in Figures 1 to 2, a new type of soil drill is provided which is easy to carry and preserves the physical and chemical properties of the original soil. The soil drill includes a drill rod (inner rod 3 and outer rod 4), a handle 1 , foot pedal 11, drill bit (movable half cylinder 8 and fixed half cylinder 9). The outer rod 4 of the drill rod is provided with screw holes 21, so that the inner rod 3 can be extended and retracted, which is convenient for field workers to carry.

Wherein, the handle 1 is fixed on the top of the drill pipe, and the foot pedal is fixed on the bottom of the drill pipe to be connected with the drill bit. Both the handle and the pedal are welded, and the person exerts force through the handle.

The drill bit is composed of a movable half-cylinder 8 and a fixed half-cylinder 9, the fixed half-cylinder 9 is welded with the drill pipe, and the opening part of the side end of the fixed half-cylinder 9 is a cylinder capable of installing the hinge 5. The top of the movable half-cylinder 8 is connected with the top part of the fixed half-cylinder 9 through the hinge 5, and the movable half-cylinder 8 can rotate in the vertical plane through the hinge 7 at the top when the side is not restricted. Ear holes 6 are provided on both sides of the side edge part of the fixed half-cylinder 9 respectively. After the U-shaped buckle 10 is penetrated laterally, the movable half-cylinder 8 and the fixed half-cylinder 9 are connected and fixed.

Wherein, the fixed half cylinder is provided with a longitudinal seam 7, so as to avoid excessive resistance caused by the compression of the soil during the soil drilling process.

The soil borrowing process using the new soil drill is as follows:

When collecting soil samples, pull out the inner rod, fix it with screws through the screw holes, and then fix the U-shaped buckle that fixes the movable half cylinder.

The sampler holds the handle with his hand, rotates the drill bit forcefully and presses it down to a certain depth, then presses the drill bit to the depth by pressing the foot pedal to assist the drill bit, and rotates the handle to release the outside of the earth drill from the soil.

Pull out the soil drill from the soil, lay the soil drill horizontally, and then pull out the U-shaped buckle connecting the upper ear holes of the movable half cylinder and the fixed The hinge is rotated at an appropriate angle, and the soil sample in the fixed half cylinder can be taken out.

The above soil sampling method saves time and effort, especially when taking out soil samples from the soil drill, which avoids the change of the physical and chemical properties of the soil itself when the traditional soil drill uses strong external force to extract the soil samples in the soil drill. And the defect of disturbance, the soil sample taken out by this method retains the integrity of the original soil to the greatest extent, and the soil can be taken at one time, and the disturbance to the soil sample is small.

Final note: the above content is only to illustrate the technical solution of the application of the new model, and is not intended to limit the application. Those skilled in the art can re-innovate, modify and equally replace the technical solution within the spirit and principle of the application. , but the equivalent changes made within the patent scope of the utility model application belong to the scope of the patent.

Claims (7)

1. A new portable soil drill, comprising a handle (1), an inner rod (3), an outer rod (4), an ear hole (6), a longitudinal seam (7), a movable half cylinder (8), and a fixed half cylinder ( 9), U-shaped buckle (10), foot pedal (11), the inner rod (3) is connected with the handle (1), and there are two screw holes on it, an upper screw hole (22) and a lower screw hole (23) , the outer rod (4) is connected with the fixed half cylinder (9), and there is a screw hole (21), the middle of the screw hole is fixed by a screw, and the longitudinal slit (7) is opened in the fixed half cylinder (9) The movable half cylinder (8) is combined with the fixed half cylinder (9) through the hinge (5), the foot pedal (11) is fixed above the fixed half cylinder (9), and the ear holes (6) are respectively in The movable half cylinder (8) and the fixed half cylinder (9) are provided with one on each side of the opening, and the U-shaped buckle (10) is used to fix the ear hole (6). 2. A new portable soil drill according to claim 1, characterized in that: the inner rod lower screw hole (23) is connected to the handle (1) and the outer rod screw hole (21) is connected to the fixed half cylinder (9). ) are equal in distance. 3 . The portable new earth drill according to claim 1 , wherein the foot pedal ( 11 ) is perpendicular to the direction of the fixed half cylinder ( 9 ). 4 . 4. A new portable earth drill according to claim 1, characterized in that: a certain distance is left above the fixed half cylinder (9), sufficient for the hinge (5) to connect the movable half cylinder (8). 5. A new portable earth drill according to claim 1, characterized in that: the ear hole (6) can fit well when the movable half cylinder (8) and the fixed half cylinder (9) are closed . 6. A new portable earth drill according to claim 1, characterized in that: the diameter of the U-shaped buckle (10) is slightly smaller than the diameter of the ear hole (6). 7 . The portable new earth drill according to claim 1 , wherein the movable half cylinder ( 8 ) is combined with the fixed half cylinder ( 9 ) as a whole larger than the ring cutter, and the incision is an ellipse. 8 .

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