RU200037U1 - Hand drill - Google Patents

Abstract

The claimed technical solution relates to the field of soil cultivation and is intended for drilling soil under the supporting pillars of structures or fences, building wells, when creating planting pits for flower and shrub plants. The technical result of the proposed technical solution is to simplify the destruction of the soil. The hand drill contains a handle (1), a stand (2), an intermediate insert (3) and cutting elements (4). In this case, the intermediate insert is connected (3) with the handle (1) and the stand (2) by threaded connections and installed with the possibility of vertical movement and fixation. Moreover, the stand (2) is rigidly connected to the tip (7) and two plates (6). In this case, cutting elements (4) are fixed on the plates (6). Simplification of soil destruction is achieved due to the fact that the plates (6) are fixed at an angle α = 13 ° -27 ° with respect to the horizontal plane with the vertical arrangement of the rack (2). In this case, the cutting elements contain teeth (9) in the working area, and the teeth (9) are located at an angle β = 30 ° -50 ° with respect to the main plane of the cutting element (4) and at an angle γ = 30 ° -50 ° with respect to to each other. The angle between the plane of the teeth (9) and the horizontal plane is δ = 35 ° -55 °. In addition, the tip (7) is drilled. 1 wp f-ly, 9 ill.

Description

The claimed technical solution relates to the field of soil cultivation and is intended for drilling soil under the supporting pillars of structures or fences, building wells, when creating planting pits for flower and shrub plants.

Known, for example, a hand drill (RU 197036 U1, 03/26/2020) [1]. As in the claimed technical solution, the specified analogue [1] contains a rack, a T-shaped handle and a working body. The stand is made of a metal pipe, which is connected by its ends to the upper and lower branch pipes. The lower branch pipe contains holes for height adjustment and a pointed tip. The working body is made in the form of a screw loop on the lower branch pipe.

A garden drill is also known (Internet source https://sibrtec.ru/products/bur-sadovyj-1110-mm-s-udlinitelem-1000-mm-smennye-nozhi-d-150-mm-d-200-mm- rossiya.-sibrteh, 02.08.2020) [2] containing a handle, an extension to increase the drilling depth, a stand and a cutting element. The handle is made of pipe and contains plastic pads at both ends to increase the grip. The stand is made of pipe and contains two plates. A cutting element is attached to each plate. The tip of the stand is pointed.

The specified analogue [2] is, by the totality of essential features, the closest analogue of the same purpose to the claimed technical solution. Therefore, it is accepted as a prototype.

The technical problem to be solved is the need to facilitate the entry of the tip into the ground and the destruction of the soil.

The analogue [1] has a working body with a smooth lateral surface. In the prototype [2], the working surfaces of the plates and cutting elements are also smooth. At the same time, the shape of the tip of analogs [1-2] is diamond-shaped, which complicates the loosening of the soil.

The technical result of the proposed technical solution is to simplify the destruction of the soil.

The technical result is achieved in that the manual drill contains a handle, a stand, an intermediate insert and cutting elements. In this case, the intermediate insert is connected to the handle and the stand by threaded connections and is installed with the possibility of vertical movement and fixation. Moreover, the stand is rigidly connected to the tip and two plates. In this case, cutting elements are fixed on the plates. It differs in that the plates are fixed at an angle α = 13 ° -27 ° with respect to the horizontal plane with the vertical arrangement of the rack. In this case, the cutting elements contain teeth in the working area, and the teeth are located at an angle β = 30 ° -50 ° with respect to the main plane of the cutting element and at an angle γ = 30 ° -50 ° with respect to each other. The angle between the plane of the teeth location and the horizontal plane is δ = 35 ° -55 °. In addition, the tip is drilled.

The above essence is a set of essential features of the claimed technical solution, ensuring the achievement of the claimed technical result.

In a particular case, the angle of elevation of the helix of the drill bit is ε = 85 ° -180 °.

The author of the claimed technical solution made a prototype of this solution, the tests of which confirmed the achievement of the technical result in all of the above ranges of parameters.

FIG. 1 shows a general view of the hand drill;

in fig. 2 - connection of the stand and the cutting element;

in fig. 3 - angle α between the cutting element and the horizontal plane with the vertical arrangement of the rack;

in fig. 4 - plate;

in fig. 5 - placement of cutting elements of different sizes on the rack;

in fig. 6 - angle β of the arrangement of the teeth of the cutting element;

in fig. 7 - angle γ between the teeth of the cutting element;

in fig. 8 - angle δ is the angle between the plane of the teeth and the horizontal plane;

in fig. 9 - angle ε of twisting of the tip.

A manual drill (Fig. 1) contains a handle (1), a stand (2), an intermediate insert (3), and cutting elements (4).

The handle (1) is made of pipe and contains ergonomic pads (5) at both ends.

The stand (2) is made of pipe and has several holes for connection with the intermediate insert (3). The intermediate insert (3) is made of a pipe and is connected to the handle (1) and the support (2) by threaded bolt connections. In this case, the intermediate insert (3) is installed with the possibility of vertical movement and fixation, thus it is possible to change the total length of the entire drill depending on the required drilling depth.

A drill-shaped tip (7) and two plates (6) (Fig. 2) are rigidly connected to the stand (2) by welding. Plates (6) are fixed at an angle α = 13 ° -27 ° with respect to the horizontal plane with the vertical position of the rack (2) (Fig. 3). Each plate (6) has two hexagonal holes (8) (Fig. 4) for nuts, to which replaceable cutting elements (4) are screwed with screws.

Cutting elements (4) can be of different sizes depending on the required drilling diameter from 100 to 200 mm (Fig. 5). Thus, one drill can drill holes of different diameters, which ensures the versatility of the tool.

The cutting element (4) is a metal piece with teeth (9) in the working area. The teeth (9) are located at an angle β = 30 ° -50 ° in relation to the main plane of the cutting element (4) (Fig. 7) and in relation to each other at an angle γ = 30 ° -50 °. In this case, the angle between the plane of the arrangement of the teeth and the horizontal plane is δ = 35 ° -55 ° (Fig. 8). This design makes it possible to reduce the effort on the worker's hands when the drill rotates, since less friction of the soil against the main surface of the cutting element is created (4).

A drill-shaped tip (7) is welded to the end of the rack (2) with an ascent angle of the screw-line of the drill-shaped tip ε = 85 ° -180 ° (Fig. 9). The diameter of the tip (7) is greater than the diameter of the rack (2). This design allows the tool to enter the ground more easily.

The implementation of the proposed technical solution is not limited to the above example.

The order of use.

The drill adjusted in height is installed with the tip (7) into the ground. Then press the handle (1) and turn it clockwise until the cutting elements (4) are buried in the soil. With further rotation of the drill, it sinks into the ground, while the tines (9) loosen the soil. Having immersed the drill to the required depth, the rotation is stopped and pulled out of the hole along with the loosened soil. The soil is shaken off from the drill and the process of making the holes is repeated.

The claimed technical solution is implemented using commercially available devices and materials and can be used not only in agriculture, but also when drilling holes, wood, construction and other areas where it is necessary to extract material using rotary motion.

Claims (2)

1. A manual drill containing a handle, a stand, an intermediate insert and cutting elements, while the intermediate insert is connected to the handle and the stand by threaded connections and is installed with the possibility of vertical movement and fixation, and the stand is rigidly connected to the tip and two plates, the cutting plates are fixed on the plates elements, characterized in that the plates are fixed at an angle α = 13 ° -27 ° with respect to the horizontal plane with the vertical arrangement of the rack, while the cutting elements contain teeth in the working area, and the teeth are located at an angle β = 30 ° -50 ° along in relation to the main plane of the cutting element and at an angle γ = 30 ° -50 ° with respect to each other, and the angle between the plane of the teeth location and the horizontal plane is δ = 35 ° -55 °, in addition, the tip is drilled. 2. A drill according to claim 1, characterized in that the angle of elevation of the helical line of the drill-shaped tip is ε = 85 ° -180 °.

Images