RU219456U1 - Tree bark sampler - Google Patents

Abstract

The utility model relates to the field of forestry, in particular to devices for conducting radiation monitoring of the environment (forests). Tree bark sampler, including a sampling pipe with a sharpened cutting edge in the lower working part and a handle for holding, characterized in that the inner surface of the sampling pipe is made of a stepped shape with a variable diameter, the working cutting part is made in the form of a truncated cone, along the smaller diameter of which a cutting edge is formed, formed by conjugation of the inner surface of the truncated cone and the outer surface of the pointed part of the pipe, while at the end of the sampling pipe a flat impact ring protruding relative to the plane of the pipe cut. The technical result of the proposed device is to improve the reliability and quality of the technology for sampling the bark of woody plants.

Description

The utility model relates to the field of forestry, in particular to devices for conducting radiation monitoring of the environment (forests).

The sampler is designed to take cuttings of tree bark for subsequent study of the accumulation of radionuclides in the bark using radiospectrometric equipment in accordance with the methods of Roshydromet.

Known tree bark sampler (1), adopted by the applicant for the prototype, including a cylindrical intake pipe with a constant diameter with a pointed cutting edge in the lower working part and a handle to hold, welded perpendicular to the longitudinal part of the pipe.

The main disadvantages of the prototype:

it is difficult to extract the cutout from the intake pipe due to strong compaction;

deformation of the end part of the pipe;

the inconvenience of transporting the sampler and sharpening its cutting part.

The technical result of the proposed utility model is to increase the reliability of the device and the quality of the technology for sampling the bark of woody plants.

The task is achieved by the fact that the inner surface of the intake pipe is made of a stepped shape with a variable diameter, the working cutting part is made in the form of a truncated cone, on the smaller diameter of which a cutting edge is made, formed by conjugation of the inner surface of the truncated cone and the outer surface of the pointed part of the pipe, while at the end of the intake pipe a flat impact ring is welded, protruding relative to the plane of the pipe cut, and the handle for holding is made removable.

The essence of the proposed utility model is shown

in fig. 1, which shows a diagram of a tree bark sampler - a general sectional view.

The sampler includes a cylindrical intake pipe 1 with an edge built up in the lower part 2, an inner cutting part 3, an impact ring 4, a mounting sleeve 5 and a screw-in handle 6.

The inner surface of the intake pipe is made of a stepped shape with a variable diameter. Its working cutting part 3 is made in the form of a hollow truncated cone, along the smaller diameter of which the cutting edge is made. The cutting edge itself is formed by mating the inner surface of the truncated cone and the outer surface of the pointed part of the intake pipe.

According to the larger diameter of the truncated cone, the inner surface of the pipe is made cylindrical.

At the end of the intake pipe 1, a flat impact ring 4 is welded, covering the pipe and protruding relative to the plane of its edge.

The handle 6 is mounted to the mounting sleeve 5 fixed to the side surface of the pipe, and their connection is made as a bolt-nut.

The work with the sampler is as follows.

Before starting work, the operator screws the handle 6 into the mounting sleeve 5 fixed on the intake pipe 1. After that, holding the sampler by the handle 6, the operator brings the sampler to the tree and, by hitting the impact ring 4 with a sledgehammer, hammers the sampler into the intended place in the tree trunk, and the cutting part 2 is introduced into the bark. The execution of the inner working cutting part 3 of the intake pipe 1 in the form of a hollow truncated cone, along the smaller diameter of which the cutting edge 2 is formed, allows for further free passage of the punch both on the conical and on the cylindrical surface, while not compacting or deforming the punch. Having reached the desired recess in the tree trunk, the operator removes the sampler by smooth turns in different directions, slightly tilting the sampler in different directions. The excavation of the cutting of the bark is carried out by hitting the end part of the pipe with the impact ring 4 on a hard surface, such as a sledgehammer or a tree, as a result of which the cutting is released from the intake pipe.

The shock ring 4 is made with a protruding part relative to the cutting plane of the intake pipe, which allows you to save the end part of the pipe, and if necessary, replace it for further operation of the sampler. The implementation of the handle 6 removable improves the transportation of the sampler and provides free access when sharpening the cutting part.

The proposed sampler is simple in design, reliable in operation and is an upgrade of the prototype.

The performance of the proposed device was tested in comparison with the prototype in the forests of the Russian Federation on the territory of the GKU of the Bryansk region "Zlynkovskoye forestry" and the GKU of the Bryansk region "Klintsovskoye forestry", as well as in the forests of the Republic of Belarus on the territory of the State Forestry Institution "Gomel Forestry" and the State Forestry Institution "Vetkovo Special Forestry".

Information sources

1. Methodology for organizing and conducting radiation monitoring in forests, Minsk, 2006, 55 p.

Claims (2)

1. A tree bark sampler, including a sampling pipe with a pointed cutting edge in the lower working part and a holding handle, characterized in that the inner surface of the sampling pipe is made of a stepped shape with a variable diameter, the working cutting part is made in the form of a truncated cone, along the smaller diameter of which a cutting edge is made, formed by conjugation of the inner surface of the truncated cone and the outer surface of the pointed part of the pipe, while welded on the end of the sampling pipe about a flat impact ring protruding relative to the plane of the pipe cut. 2. The tree bark sampler according to claim 1, characterized in that the handle for holding is made removable.