CN106441015A - Method for manufacturing tree height rapid measuring tape - Google Patents

Abstract

The invention discloses a method for making a tree high-speed measuring ruler. The ruler body is made by adopting a flexible and winding soft ruler belt structure, and combined with the storage function of the ruler box, the software ruler body can be rotated when the measuring ruler is not in use. It is stored in the ruler box, and the ruler body is pulled out from the ruler box for use when measuring height in the field. The invention changes the traditional hard ruler body structure, and the tree high-speed measuring ruler produced is small in volume, light in weight, convenient to carry and use, and thus has substantial progress compared with the existing production technology.

Description

A kind of manufacturing method of tree high-speed measuring ruler

technical field

The invention belongs to the technical field of forest investigation in the forestry industry, and specifically relates to a new manufacturing method in terms of portability proposed for a high-speed measuring ruler for trees.

Background technique

Tree height is an important indicator of tree growth and plays an important role in the investigation of forest resources. However, the forest environment is complex. When encountering situations such as high mountains and steep slopes, tall trees, and line of sight, it is not a task to quickly measure the height of trees. easy thing. In 2010, Li Jianhua of Shandong Agricultural University and others invented a device for efficiently measuring tree height (patent number ZL2009102564050), which brought vitality to the field of forest altimetry technology. Compared with the traditional Breulley height measuring device, this kind of height measuring device does not need to measure the horizontal distance between the measured wood and the measurer, and the measuring point can be selected, so that it has better flexibility in use ;Compared with the traditional Christon altimeter, the height scale of the ruler is uniform, and it is easier to obtain good reading accuracy. Therefore, it has also made great progress than the Christon altimeter. However, the patent ZL2009102564050 invented by Li Jianhua et al. is a dendrometer ruler with a hard ruler plate structure. The disadvantage of this structure is that it is bulky and difficult to store and carry. Although the patent CN2016200667363 has improved its folding, which can reduce the volume and improve portability to a certain extent, but it has not fundamentally solved the disadvantage of the large size of the hard ruler structure.

If it can solve the disadvantages of large size and difficult to carry caused by the hard ruler plate structure of the tree high-speed measuring ruler itself of the patent ZL2009102564050, it will be a tree height measuring tool with great promotion value. The present invention proposes just for the above problems .

Contents of the invention

The present invention is to provide a kind of manufacture method of tree high-speed measuring ruler, and this method comprises following three main points: (1) adopt the flexible tape structure that can be bent and wound similar to tape measure to make the ruler body of tree high-speed measuring ruler; (2) ) The tree high-speed measuring ruler as a whole also includes a ruler box for storing the ruler body; (3) The ruler body of the tree high-speed measuring ruler is stored inside the ruler box by winding. In addition, the scale of the tree high-speed measuring ruler is marked with a scale used to measure the height of the tree, and the scale value can be in cm or other linear scale units. In addition, red arrows are used to mark the 0 scale line and the 2 scale line of the height measurement scale of the ruler body. The function of this mark is similar to the function of the feet in the patent ZL2009102564050 and the patent CN2016200667363.

The present invention changes the traditional rigid ruler body structure design of the high-speed measuring ruler. Since the ruler body is made of a soft ruler tape that can be bent and wound, the ruler body can be conveniently wound and stored in the ruler box. The tree high-speed measuring ruler made by the method is small in size, light in weight, convenient to carry and use, and thus has substantial progress compared with the existing manufacturing technology.

Description of drawings

Fig. 1 is the schematic sectional view of the tree high-speed measuring ruler made by the present invention;

Fig. 2 is the front schematic diagram of the tree high-speed measuring ruler utilizing the present invention to make;

Fig. 3 is the side schematic diagram of the tree high-speed measuring ruler utilizing the present invention to make;

Fig. 4 is the working diagram when utilizing the tree high-speed measuring ruler made by the present invention to measure tree height.

In the accompanying drawings: 1—pull ring, 2—guide wheel, 3—foot box, 4—foot body, 5—foot drum, 6—foot shaft, 7—scale, 8—red arrow, 9—rotary wheel.

detailed description

Provide below in conjunction with accompanying drawing and use this method to make the implementation steps of tree high-speed measuring ruler:

(1) At first make chi box 3 with sheet metal or plastic sheet, guide wheel 2 is installed on the inner wall of chi box, this guide wheel is a fixed pulley device, and its effect is in order to change the motion direction of chi body 4. Install a ruler shaft 6 that runs through the ruler box at the center of the ruler box, install a circular ruler drum 5 on the ruler shaft inside the ruler box, and install two rotary wheels 9 symmetrically at both ends of the ruler shaft that runs through the ruler box, The chi drum 5 and the rotary wheel 9 are all directly fixed on the chi shaft 6, and the drum, the shaft, and the wheels are interlocked. At this moment, the rotary rotary wheel can drive the chi drum to rotate. The description of the value is that installing the rotary wheel at only one end of the ruler shaft can also facilitate the manual winding operation of the ruler body. However, in order to maintain the vertical drooping posture of the ruler body during height measurement, it must be symmetrical at both ends of the ruler shaft during manufacture. Install two identical spinner wheels to maintain the weight balance of the ruler.

(2) adopt the flexible body scale band structure that can bend and wind similar to tape measure to make the scale body of tree high-speed measuring ruler, then engrave the scale 7 of measuring tree height on the scale body. In this example, the scale value is in cm, and a scale of 30cm is engraved on the ruler body, which can be used to measure the height of trees below 30m. In addition, red arrows 8 are used for reminding marks on the 0 scale line and 2 scale line of the height measurement scale of the ruler body, and the purpose is to use this to replace the function of the feet in the patent ZL2009102564050 and the patent CN2016200667363. When measuring the height of the high-speed tree measuring ruler made in this example, the length of the auxiliary measuring pole in front of the tree is fixed at 2m.

(3) After the ruler body is finished, install the pull ring 1 on the front end of the ruler body (near the 30cm engraved line end), and connect the rear end of the ruler to the ruler drum inside the ruler box, so that the ruler body can be received by rotating the rotary wheel The inside of the ruler box is wound on the ruler drum, and the production of the whole ruler is completed.

Here we need to explain the problem about the feet of the ruler: the feet of the patent ZL2009102564050 and the patent CN2016200667363 are movable, so it is allowed to use auxiliary measuring poles of different lengths when measuring heights, and the tree high-speed measuring ruler made by this method will be two feet The feet are simplified as two sets of fixed arrows, and the distance between the two sets of fixed arrows is fixed, which is 2 distance units and cannot be adjusted. Therefore, the tree high-speed measuring ruler made by this method is only allowed to use 2m auxiliary measuring benchmarks. In fact, in the actual forest field survey, because the 2-meter benchmark is the basic tool, it will not affect the normal progress of the altimetry work.

Use of tree speed rulers made by this method:

(1) Hold the ruler box with one hand, and pull the ring with the other hand to pull the ruler body out of the ruler box. The basic figure is shown in Figure 2;

(2) A 2m-long benchmark AB is set up in front of the tree by the assistant surveyor;

(3) The tester holds the pull ring to let the tree's high-speed measuring ruler hang down naturally, and adjusts the relative position of the tree's high-speed measuring ruler and the body through the arm without changing the eye position. When the two points a and b are adjusted to be just in line of sight When OA and OB are on, the line of sight OC intersects the c-point scale of the tree high-speed measuring ruler, which is the tree height, as shown in Figure 4.

Claims (4)

1. the manufacture method that a kind of height of tree speed surveys chi, the method includes three below main points：

(1) employing can bend the blade of the software tape structure fabrication height of tree speed survey chi similar to tape measure of winding；

(2) height of tree speed survey chi integrally also includes a chi box for folding and unfolding blade；

(3) blade that height of tree speed surveys chi is to be stored in chi box inside by canoe.

2. blade according to claim 1 is it is characterised in that blade is marked with the scale for measuring the height of tree.

3. scale according to claim 2 it is characterised in that：Scale value both can be cm unit it is also possible to be that other are straight Line scale unit.

4. scale according to claim 2 it is characterised in that：Red arrow is used on 0 graduation mark in scale and 2 graduation marks Carry out prompting property to indicate.