Tree diameter at breast height measuring device for forestry investigation

Abstract

The utility model relates to the technical field of forestry investigation, and discloses a tree breast diameter measuring device for forestry investigation, which comprises a long rod, a box body is arranged at the upper end of the long rod, a cog belt is arranged in the box body, two belt wheels are symmetrically arranged in the cog belt, the two belt wheels are both rotatably arranged in the box body, and the cog belt is arranged in the box body. Two buckles are arranged on the toothed belt, the two buckles and the two belt wheels are arranged at intervals, one side of each buckle is fixedly connected with a sliding block, the sliding blocks are arranged on a sliding way in the box body in a sliding mode, the two sliding blocks are each provided with a clamping rod, one belt wheel is connected with a motor, and the other belt wheel is connected with a clamping rod. On the basis that the diameter at breast height of a trunk at a lower position can be conveniently measured, the front end of the long rod is lifted to the trunk at a higher position, the two clamping rods are close to each other until the trunk is clamped, the diameter at breast height of the tree is obtained through the distance between the two clamping rods, the diameter at breast height of the trunk at the higher position can be conveniently measured, and the application range of the measuring device is expanded.

Description

TECHNICAL FIELD

[0001] The utility model relates to forestry investigation technical field, concretely is forestry investigation is with tree breast height diameter measuring device. BACKGROUND

[0002] Forestry land is the land specially used for forestry production, including forest land, shrub land, sparse forest land, and temporary suitable land for forestation and non-forest land. In order to understand the local ecological situation of forestry land, it is necessary to investigate the forest land frequently. In forest resource survey, breast height diameter is an important stand survey factor. It is also one of the most basic factors reflecting the quality and growth of live standing trees. Rapid and accurate measurement of breast height diameter is of great significance for forest resource survey and reasonable management.

[0003] According to the patent CN217738128U, a device for efficiently measuring the breast height diameter of standing trees based on forestry surveying is disclosed. The device includes a mobile base with a fixed vertical plate on top. The device allows for easy measurement of the breast height diameter of trees by adjusting the distance between the two measuring plates using a T-shaped rotating shaft. The second measuring plate can be automatically reset to fit the tree by the elastic recovery characteristics of the first compression spring. The device can be operated by a single person, reducing the waste of human resources and facilitating the use of staff.

[0004] The device measures the diameter of the tree trunk by clamping it with two measuring plates. However, the device is entirely set on a mobile base, and although it has an adjusting component, it can only measure at a low position and cannot measure high trees. The device has a small range of application. UTILITY MODEL CONTENT

[0005] To overcome the shortcomings of the prior art, the utility model aims to provide a forestry investigation tree breast height diameter measuring device that can measure the breast height diameter of low trees and also measure the breast height diameter of high trees, expanding the range of application of the measuring device.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] The utility model provides a forestry survey tree breast height diameter measuring device, including long rod, the upper end of long rod is provided with box body, the inside of box body is provided with toothed belt, the inside symmetry of toothed belt is provided with two pulleys, two pulleys all rotate and set up in the inside of box body, be provided with two buckles on toothed belt, two buckles are interval setting with two pulleys, one side of two buckles is all fixedly connected with a sliding block, and the sliding block is slidably arranged on the slide in the inside of box body, two sliding blocks are all provided with a clamping rod, one pulley is connected with motor.

[0008] Preferably, the lower end of the long rod is provided with a button, which is connected with the motor and the battery through a wire.

[0009] Preferably, the box body is provided with a scale, and one of the sliding blocks is provided with a pointer corresponding to the scale.

[0010] Preferably, a video probe is arranged above the pointer, which is connected with a display screen through a video line, and the display screen is arranged at the lower end of the long rod.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] On the basis of facilitating the measurement of the breast height diameter of a lower tree trunk, the front end of the long rod is held to the trunk of a high tree, the front end of the box body is abutted against the trunk, the motor drives the pulley to rotate, the toothed belt is rotated, the sliding block fixed on the toothed belt through the buckle is moved, the sliding block drives the two clamping rods to approach each other until the trunk is clamped, and then the breast height diameter value of the tree is obtained through the spacing of the two clamping rods, so that the breast height diameter value of a high tree trunk is measured, and the application range of the measuring device is expanded. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure schematic diagram of the utility model;

[0014] Figure 2 It is the position relation schematic diagram of pulley and buckle of the utility model;

[0015] Figure 3 It is the structure schematic diagram of the outside of the utility model;

[0016] Figure 4 It is the structure schematic diagram of the front side of box body of the utility model.

[0017] Wherein: 1, long rod, 2, box body, 3, toothed belt, 4, pulley, 5, buckle, 6, sliding block, 7, slide, 8, clamping rod, 9, motor, 10, button, 11, scale, 12, pointer, 13, video probe, 14, video line, 15, display screen. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0019] The utility model provides the following technical scheme:

[0020] As shown in Figure 1 And Figure 2 As shown in the embodiment, the forestry survey tree breast height diameter measuring device comprises a long rod 1, the upper end of the long rod 1 is provided with a box body 2, the inside of the box body 2 is provided with a toothed belt 3, two pulleys 4 are symmetrically arranged in the inside of the toothed belt 3, the two pulleys 4 are rotationally arranged in the inside of the box body 2, two buckles 5 are arranged on the toothed belt 3, the two buckles 5 are arranged at intervals with the two pulleys 4, one sliding block 6 is fixedly connected to one side of each of the two buckles 5, the sliding block 6 is slidingly arranged on a slide 7 in the box body 2, one clamping rod 8 is arranged on each of the two sliding blocks 6, and one of the pulleys 4 is connected with a motor 9.

[0021] By lifting the front end of the long rod 1 to the high tree trunk, the front end of the box body 2 is abutted on the tree trunk, the motor 9 drives the pulley 4 to rotate, the toothed belt 3 is driven to rotate, the sliding block 6 fixed on the toothed belt 3 through the buckle 5 is driven to move, the sliding block 6 is stably slid through the slide 7 arranged in the box body 2, the buckle 5 located on the upside of the toothed belt 3 and the buckle 5 located on the downside of the toothed belt 3 are opposite in moving direction due to the fact that the two buckles 5 are arranged at intervals with the two pulleys 4, and then the sliding block 6 drives the two clamping rods 8 to approach or move away from each other, after the two clamping rods 8 approach each other until the tree trunk is clamped, the breast height diameter value of the tree is obtained through the interval of the two clamping rods 8, on the basis of being capable of facilitating the measurement of the breast height diameter of the low tree trunk, by lifting the front end of the long rod 1 to the high tree trunk, the front end of the box body 2 is abutted on the tree trunk, the motor 9 drives the pulley 4 to rotate, the toothed belt 3 is driven to rotate, the sliding block 6 fixed on the toothed belt 3 through the buckle 5 is driven to move, the sliding block 6 drives the two clamping rods 8 to approach each other until the tree trunk is clamped, and then the breast height diameter value of the tree is obtained through the interval of the two clamping rods 8, so that the breast height diameter value of the high tree trunk is facilitated to be measured, and the application range of the measuring device is expanded.

[0022] Specifically, as shown in Figure 3 The lower end of the long rod 1 is provided with a button 10, the button 10 is connected with the motor 9 and a battery through wires.

[0023] The button 10 comprises a clamping button and a releasing button, the clamping button is arranged on the circuit wire connected with the motor 9 and the battery in a positive direction, after the clamping button is pressed, the circuit is connected, the motor 9 rotates in a positive direction, and the two clamping rods 8 are close to each other to clamp the trunk; the releasing button is arranged on the circuit wire connected with the motor 9 and the battery in a reverse direction, after the releasing button is pressed, the circuit is connected, the motor 9 rotates in a reverse direction, and the two clamping rods 8 are far away from each other to release the trunk.

[0024] Specifically, in combination with Figure 4 As shown in the drawings, the box body 2 is provided with a scale 11, and one of the sliders 6 is provided with a pointer 12 corresponding to the scale 11.

[0025] The two clamping rods 8 are arranged in mirror symmetry, the zero scale of the scale 11 is arranged at the mirror position of the mirror symmetry, and the scale 11 is aligned with the end face of the clamping rod 8, after the two clamping rods 8 clamp the trunk, when the trunk at a lower position is measured, the radius of the trunk can be directly read from the scale 11, and then the breast height value of the trunk is obtained.

[0026] Specifically, in combination with Figure 3 As shown in the drawings, the upper portion of the pointer 12 is provided with a camera probe 13, the camera probe 13 is connected with a display screen 15 through a video line 14, and the display screen 15 is arranged at the lower end of the long rod 1.

[0027] When the trunk at a higher position is measured, since it is inconvenient to directly observe the scale 11, the image at the scale 11 is displayed on the display screen 15 through the camera probe 13, and the reading is performed through the display screen 15, and further, the breast height value of the trunk at a higher position is measured.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits, and the scope of the changes, modifications, replacements and variations is defined by the appended claims and their equivalents.

Claims

1. A tree breast height measuring device for forestry surveys comprising an elongate pole (1) characterised in that: The upper end of the long rod (1) is provided with a box body (2), the inside of the box body (2) is provided with a toothed belt (3), the inside of the toothed belt (3) is symmetrically provided with two belt pulleys (4), both of which are rotationally arranged in the inside of the box body (2), two buckles (5) are arranged on the toothed belt (3), the two buckles (5) are arranged at intervals with the two belt pulleys (4), one sliding block (6) is fixedly connected to one side of each of the two buckles (5), the sliding block (6) is slidingly arranged on the slide (7) in the inside of the box body (2), one clamping rod (8) is arranged on each of the two sliding blocks (6), and one of the belt pulleys (4) is connected with a motor (9).

2. The tree breast height measuring device for forest surveying according to claim 1, characterized in that: The lower end of the long rod (1) is provided with a button (10), the button (10) is connected with the motor (9) and a battery through wires.

3. A tree breast height measuring device for forestry surveying according to claim 2, characterized in that: A scale (11) is arranged on the box body (2), and a pointer (12) is arranged on one of the sliding blocks (6) corresponding to the scale (11).

4. The tree breast height diameter measuring device for forestry surveying according to claim 3, characterized in that: A camera probe (13) is arranged above the pointer (12), the camera probe (13) is connected with a display screen (15) through a video line (14), and the display screen (15) is arranged at the lower end of the long rod (1).

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