CN203083844U

CN203083844U - Tree growth cone for coring bit

Info

Publication number: CN203083844U
Application number: CN 201320027251
Authority: CN
Inventors: 冯起; 李建国; 康兴成; 常宗强; 司建华; 李宗省; 王亚敏; 李炜
Original assignee: Cold and Arid Regions Environmental and Engineering Research Institute of CAS
Current assignee: Cold and Arid Regions Environmental and Engineering Research Institute of CAS
Priority date: 2013-01-18
Filing date: 2013-01-18
Publication date: 2013-07-24
Anticipated expiration: 2023-01-18

Abstract

The utility model relates to a tree growth cone for a coring bit. The tree growth cone consists of a holding pipe, a spiral bit of the growth cone, a bit rear neck and a main steel pipe, wherein the holding pipe and the growth cone are in a T shape; the bit of the tree growth cone is a hollow spiral bit; the joint of the bit rear neck and the main steel pipe is a regular octagon; the cross section of the outer wall of the main steel pipe is an inscribed circle of the regular octagon of the bit rear neck; and the joint is in natural transition. The number of contact surfaces of the spiral bit rear neck and the tree core is increased from 3 and 4 to 8, great extrusion of sawdust, gum and the like inside the trees on the growth cone is reduced, the friction force of outwards taking the bit of the growth cone is decomposed, the time and labor are saved under the same sampling condition, and the working efficiency is improved.

Description

A kind of arboreal growth awl of coring bit

Technical field

The utility model relates to the tree ring research field, specifically is a kind of arboreal growth awl of coring bit.

Background technology

The trees reel is the important indicator that the arboreal growth investigation and analysis are carried out in forestry circle; by sample analysis trees wood quality, growth rate and inner structure rot, disease situation such as cavity, be widely applied to fields such as ancient tree and forest conservation, shade tree, shelter-forest, the wooden evaluation of timber.The trees reel also is widely used in paleoclimate restoration and reconstruction field in addition, is one of index of carrying out the climate change analysis, and along with the reach of science forms the perfect subject system of a cover gradually---tree wheel chronology.Tree wheel chronology (Dendrochronology) is a research trees xylem year grown layer, and utilize year grown layer as science (the Fritts H C. Trees Rings and Climate. London:Academic Press that decides year instrument, 1976.376-412,534).Tree wheel chronology has obtained very fast development after 20 beginnings of the century were proposed by U.S. astronomer A.E.Douglass.Tree is taken turns can not only can provide the environmental element information when setting the wheel generation simultaneously as the instrument of deciding year, can be used as the proxy data of environmental change.Tree wheel data have fixed year accurately, continuity is strong, resolution is high, index measures advantage such as accurate (Shao Xuemei, tree wheel chronological some progress [J], quaternary research, 1997,3:265-271.).

The growth cone of widespread use at present, the coring bit collare generally is designed to triangle or square, the transversal section of growth cone main body steel pipe is the inscribed circle of triangle or square collare, drill when screwing in trees, because drill bit collare cross sectional area is greater than thereafter to the main body steel pipe that connects, as long as bit drills is gone into the trees xylem, steel pipe just enters trees like a cork.The convenience when though this kind design has guaranteed to advance to bore, but understand under great stress because growth cone enters the trees xylem, meetings such as the wood chip of trees inside and natural gum cause huge extruding to growth cone, increased the friction force of outside taking-up growth cone, need the sampling personnel to use bigger strength just can extract, can waste plenty of time and muscle power, reduce work efficiency; When taking a sample near abrupt slope or steep cliff, need outwards to use bigger strength owing to get brill outward, astasia also causes the Personal Risk easily.

Summary of the invention

In view of above-mentioned, the arboreal growth awl that the purpose of this utility model is to provide a kind of coring bit utilizes this utensil, can improve the work efficiency of open-air tree wheel sampling.

The purpose of this utility model measure by the following technical programs realizes:

A kind of arboreal growth awl of getting the core auger drill head is to constitute by holding pipe, growth cone auger drill head, drill bit collare and main body steel pipe, holds pipe and is " T " font with growth cone, and the drill bit of arboreal growth awl is the cored screw drill bit.Drill bit collare and main body steel pipe junction are octagon, and the transversal section of main body outer wall of steel pipe is the incircle of drill bit collare octagon, junction nature transition.

The beneficial effect of advantage of the present utility model and generation comprises:

1; the utility model makes full use of mechanics principle; auger drill head collare and trees are set the core surface of contact from 3; 4 have been increased to 8; reduced the huge extruding that the wood chip of trees inside and natural gum etc. cause growth cone; decomposed the friction force when growth cone is outwards got brill; under same sampling condition; time and strength have been saved; the sample collector is when high-risk environment operation such as steep cliff; can be when outwards exerting oneself; keep balance better; when having guaranteed the field work personal security, improved the work efficiency of open-air tree core sampling, for being generalized to large-scale regional trees assignment statistics, the growth cone use provides possibility.

Consider from environmental angle that 2, the utility model has reduced people and utilized arboreal growth to bore the dynamics of getting in the core process, for women's researcher is provided convenience; The method of operating that belongs to environmental protection, the utility model is compared with other electromechanical means, and is simple, economical and practical, has advantage such as be easy to carry, easy to operate.

3, adopt growth cone of the present utility model outwards to get when boring, can not damage, reduced of the friction of trees xylem, reduced the degree of wear, prolonged its serviceable life growth cone to auger drill head collare and main body steel pipe junction to arboreal growth.

Description of drawings

Fig. 1 is a kind of arboreal growth wimble structure synoptic diagram of getting the core auger drill head.

Fig. 2 is the auger drill head of arboreal growth awl.

Embodiment

Below in conjunction with accompanying drawing, the utility model is further described again:

Shown in Fig. 1-2, a kind of arboreal growth awl of getting the core auger drill head, be to constitute by holding pipe 1, growth cone auger drill head 3, drill bit collare 4 and main body steel pipe 2, hold pipe 1 and be " T " font with growth cone, the drill bit 3 of arboreal growth awl is the cored screw drill bit, it is characterized in that drill bit collare 4 and main body steel pipe 2 junctions are octagon, the transversal section of main body outer wall of steel pipe 2 is the incircle of drill bit collare 4 octagons, junction nature transition.

During sampling, both hands are held holding of " T " word two ends and are managed 1, and firmly rotation.Coring bit is sharp spiral fashion, and drill bit collare 4 is an octagon with main body steel pipe 2 junctions, links to each other with growth cone main body steel pipe 2 by drill bit collare 4, drives main body steel pipe 2 and enters the trees xylem.The columniform tree core bar of gushing out in main body steel pipe 2 when tree core bar long enough, inserts supporting corer, blocks and take out trees reel batten, so far takes a sample and finishes.

Claims

1. the arboreal growth of a coring bit is bored, be to constitute by holding pipe (1), growth cone auger drill head (3), drill bit collare (4) and main body steel pipe (2), hold pipe (1) and be " T " font with growth cone, the drill bit (3) of arboreal growth awl is the cored screw drill bit, it is characterized in that drill bit collare (4) and main body steel pipe (2) junction are octagon, the transversal section of main body steel pipe (2) outer wall is the incircle of drill bit collare (4) octagon, junction nature transition.