CN212158433U

CN212158433U - Simple and easy trees angle measuring device that is lopped

Info

Publication number: CN212158433U
Application number: CN202020986234.9U
Authority: CN
Inventors: 董利虎; 谢龙飞
Original assignee: Northeast Forestry University
Current assignee: Northeast Forestry University
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2020-12-15
Anticipated expiration: 2030-06-02

Abstract

The utility model relates to a simple and easy trees angle measuring device that branches is applicable to and measures contained angle between branch and the trunk that the trunk branch is born for use in the analytic wood measurement of trunk. Consists of 2 measuring support rods and 1 digital display angle protractor. The beneficial effects are as follows: the method improves the measurement mode of the contact angle, and solves the problem that the traditional measurement mode cannot accurately place a measuring instrument; the electronic display is used for measuring the angle value, so that the measurement of the landing angle is more convenient, and the measurement precision and efficiency are greatly improved.

Description

Simple and easy trees angle measuring device that is lopped

Technical Field

The utility model relates to a simple and easy trees angle measuring device that branches is applicable to and measures contained angle between branch and the trunk that the trunk branch is born for use in the analytic wood measurement of trunk.

Background

The term "angle of incidence" as used herein refers to the angle between the trunk and the branches formed from the trunk during the growth of a plant, and generally the angle is less than 90 degrees, and the angle is greater than 90 degrees for individual species as the growth period of the plant is prolonged.

The tree pruning angle is very important for researching the growth rule of trees and constructing a tree growth model and a forest stand growth model, so that the tree pruning angle can be accurately and quickly measured, and the method is very important for forestry researchers. The traditional method for measuring the angle of the tree to be cut adopts a protractor for students to put on a trunk for measurement. This method has some problems: 1, the measurement position is difficult to master, and the measurement angle is difficult to find because the branch is thick after growing for many years and the branch can bend after growing for many years; 2, the measurement precision can not be guaranteed, and due to the fact that the protractor for students is semicircular and the shape of the branches, an observer cannot accurately read the degree of the pruning angle.

Therefore, if a user wants to quickly and accurately measure the landing angle of the tree, the measuring device is required to have the advantages of convenience in carrying, good operation, high measuring precision and the like.

SUMMERY OF THE UTILITY MODEL

1. Problems to be solved

Improve measurement of efficiency and measurement accuracy and be the utility model discloses the main problem that solves, but also need have easily to carry concurrently, advantage such as good operation.

2. Technical scheme

The equipment principle is that the inner angle of a quadrangle is 360 degrees, when two angles of the quadrangle are right angles, the other two angles of the quadrangle are 180 degrees, and as long as one angle of the rest two angles is calculated, the degree of the other angle can be quickly calculated.

The utility model discloses, a simple and easy trees angle measuring device that branches then utilizes above-mentioned principle, utilizes two branches and trunk and the branch formation quadrangle that awaits measuring of measuring device, and branch is perpendicular respectively with trunk, branch, only needs to measure the contained angle of two branches on the measuring device like this, the number of degrees of the angle that branches of measurement trees that can be quick. The invention discloses a simple tree landing angle measuring device, which consists of 2 measuring support rods and 1 digital angle protractor, wherein each supporting leg (front end) of each measuring support rod is provided with a rectangular plane, the upper part of the rectangular plane is provided with an arc-shaped surface, the rectangular plane and the arc-shaped surface are both positioned at the outer side of the measuring support rod, and the measuring support rod is telescopic. The connecting structure of the two measuring support rods is similar to a compass, one end of the connecting structure is connected, the opening angle of the two measuring support rods is the angle to be measured, and the connecting end is combined with the digital display angle measuring device.

Preferably, the measuring support rod is made of an environmental plastic material or an alloy material so as to ensure that the strength of the equipment meets the requirement, and the measuring support rod is small in size and portable. The two measuring support rods are of three-section telescopic structures, the extension length of each measuring support rod is not more than 15cm, and the contraction length is not less than 5 cm. When measuring, two are measured branch and are perpendicular with position trunk, branch that awaits measuring respectively, and the quadrangle shape is convenient for adjust to extending structure, and the help of being convenient for is the right angle with the crossing angle of trunk, branch shape. The supporting foot (front end) of the measuring supporting rod is a rectangular plane and is positioned on the outer side of the measuring supporting rod. The outer side surfaces of the measuring support rods on the upper parts of the two rectangular planes are respectively provided with an arc-shaped surface, and the rectangular planes and the arc-shaped surfaces are perpendicular to the measuring support rods. The rectangular plane and the arc-shaped surface on the measuring branch are both located on the outer side of the measuring branch, so that when the two measuring rods are combined, normal opening and closing of the equipment cannot be influenced. When the measured branches are thin and the bases of the branches are not bent, the rectangular plane is attached to the upper surfaces of the trunk and the branches to be measured to measure the branch sticking angle; when the branch to be measured is thick and strong and the base of the branch is obviously bent, the arc-shaped surface is attached to the side surface of the measuring branch, the measuring branch is still perpendicular to the branch, the other measuring branch is still connected with the trunk by the rectangular plane and is perpendicular to the trunk, and at the moment, the plane formed by the two measuring branches is parallel to the plane of the branch angle to be measured, so that the measuring data can be more accurate when the thick branch is measured.

Preferably, the digital display angle protractor is internally provided with a digital angle measuring device, the angle formed by the two measuring support rods is transmitted to the digital display angle protractor, and then the angle can be displayed on a digital display screen of the photo angle protractor, so that the digital display angle protractor is convenient to measure and high in measuring precision. The angle measurement range is 0-180 degrees. The digital display angle protractor is powered by a button battery, is not provided with a power switch, is automatically started when the angle of the instrument changes, and is automatically shut down when the instrument is not operated for a certain time.

3. Advantageous effects

The utility model provides a landing angle measuring device, its beneficial effect as follows:

(1) the measurement mode of the landing angle is improved, and the structure of the utility model changes the problem that the traditional measurement mode can not accurately place the measuring instrument;

(2) the utility model discloses a simple structure, portable, electronic display measures angle value, and it is more convenient to make the measurement at angle of falling a branch, and measurement accuracy all has great improvement with efficiency.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a side view of the present invention.

In the figure: (1) the angle measuring instrument comprises a measuring support rod, (2) a digital display angle protractor, (1-1) a rectangular plane, and (1-2) an arc surface.

Detailed Description

Example 1

When the branch to be measured is thin and the base has no bend:

the method comprises the steps of firstly, starting the simple tree landing angle measuring device, separating two measuring support rods (1) by hands, and respectively placing rectangular planes (1-1) at the support foot ends of the measuring support rods (1) on a trunk and branches. The general placement position on the trunk is about 5-10cm above the knot of the branch to be measured, and the distance on the branch is about 5-10cm from the knot.

And secondly, adjusting the telescopic lengths of the two measuring support rods (1) to ensure that the rectangular planes (1-1) are respectively vertical to the trunk and the contact part of the branches, keeping the device and the to-be-measured branch angle on the same plane, and reading out a measuring value (x) through a digital display angle protractor (2).

And thirdly, calculating a numerical value (y) of the tree landing angle, wherein the calculation formula is that y is 180-x.

And when the pruning angle of another branch is measured, repeating the process.

Example 2

When the shoot to be measured is thick and the base is significantly curved:

the method comprises the steps of firstly, starting the simple tree landing angle measuring device, separating two measuring support rods (1) by hands, placing a rectangular plane (1-1) at the support foot end of one measuring support rod (1) on a trunk, placing an arc-shaped surface (1-2) of the other measuring support rod (1) on the side surface of a branch to be measured, and enabling the arc surface of the arc-shaped surface (1-2) to be attached to the branch to be measured. The general placement position on the trunk is about 5-10cm above the knot of the branch to be measured, and the distance on the branch is about 5-10cm from the knot.

And secondly, fixing the measuring support rods (1) attached to the branches by using a hand to keep the measuring support rods perpendicular to the attached parts of the branches, and then adjusting the telescopic lengths of the two measuring support rods (1) to make the rectangular plane (1) perpendicular to the trunk. A plane formed by the two measuring support rods (1) of the measuring device is parallel to a plane of the landing angle to be measured, and a measuring value (x) is read out through the digital display angle protractor (2).

Example 3

When the instrument is inconvenient to place above the branch angle, the branch to be measured is thin, and the base part is not bent:

the method comprises the steps of firstly, starting the simple tree landing angle measuring device, separating two measuring support rods (1) by hands, and respectively placing rectangular planes (1-1) at the support foot ends of the measuring support rods (1) on a trunk and branches. The general placement position on the trunk is about 5-10cm below the knot of the branch to be measured, and the position on the branch is about 5-10cm above the knot.

And secondly, adjusting the telescopic lengths of the two measuring support rods (1) to ensure that the rectangular planes (1-1) are respectively vertical to the trunk and the contact part of the branches, keeping the device and the pruning angle to be measured on the same plane, and reading out a measuring value (x') through a digital display angle protractor (2). And the measured value (x') is the pruning angle of the branch to be measured.

Example 4

When it is inconvenient to place the instrument above the landing angle and the branch to be measured is thick, the base is bent significantly: the method comprises the steps of firstly, starting the simple tree landing angle measuring device, separating two measuring support rods (1) by hands, placing a rectangular plane (1-1) at the support foot end of one measuring support rod (1) on a trunk, placing an arc-shaped surface (1-2) of the other measuring support rod (1) on the side surface of a branch to be measured, and enabling the arc surface of the arc-shaped surface (1-2) to be attached to the branch to be measured. The general placement position on the trunk is about 5-10cm below the knot of the branch to be measured, and the position on the branch is about 5-10cm above the knot.

And secondly, fixing the measuring support rods (1) attached to the branches by using a hand to keep the measuring support rods perpendicular to the attached parts of the branches, and then adjusting the telescopic lengths of the two measuring support rods (1) to make the rectangular plane (1) perpendicular to the trunk. The plane formed by the two measuring support rods (1) of the measuring device is parallel to the plane of the angle of the branch to be measured, and the measuring value (x') is read out through the digital display angle protractor (2). And the measured value (x') is the pruning angle of the branch to be measured. And when the pruning angle of another branch is measured, repeating the process.

Claims

1. A simple tree landing angle measuring device comprises a measuring support rod (1), a digital display angle protractor (2), a rectangular plane (1-1) and an arc-shaped plane (1-2); the method is characterized in that: the connecting structure of the two measuring support rods (1) is similar to a compass, one end of the connecting structure is connected, the connecting end of the connecting structure is combined with the digital display angle protractor (2), a rectangular plane (1-1) is arranged at the front end of each supporting leg (1), an arc-shaped surface (1-2) is arranged at the upper part of the rectangular plane (1-1), the rectangular plane (1-1) and the arc-shaped surface (1-2) are both positioned at the outer side of the measuring support rod (1), and the measuring support rod (1) is telescopic.