Tree height measuring device

Abstract

The utility model discloses a tree height measuring device which comprises a fixed table, a rotating table, a mounting box and a driving assembly, the bottom of the fixed table is rotatably connected with at least three sets of telescopic rods in the circumferential direction, drill rods are fixedly arranged at the bottoms of the telescopic rods, and the rotating table is rotatably arranged at the top of the fixed table along the axis of the fixed table. The rotating table and the fixed table are connected through a limiting assembly, a mounting plate is fixedly arranged at the top of the rotating table, a rotating shaft penetrates through the side wall of the mounting plate, one end of the mounting box rotationally sleeves the rotating shaft, an infrared distance meter is fixedly mounted at the other end of the mounting box, and infrared rays emitted by the infrared distance meter and the axis of the rotating shaft are coplanar. The driving assembly is arranged at the top of the rotating table and used for driving the mounting box to rotate. Through the arrangement, infrared rays emitted by the infrared detector can be conveniently adjusted to be in the same vertical plane with the tree top of the tree.

Description

A tree height measuring device Technical Field

[0001] This utility model belongs to the field of tree height measurement technology, and specifically relates to a tree height measurement device. Background Technology

[0002] Regularly measuring tree height can provide insights into tree growth; current technology typically employs trigonometric methods to measure tree height.

[0003] Chinese patent CN220829156U discloses a tree height measuring device. This device includes a fixed disk, a rotating disk, an angle scale indicator, and a mounting bracket. The fixed disk and the rotating disk are interlocked, with their respective rotation axes coinciding and capable of rotating relative to each other. A rotating handle is provided on the rotating disk, and an observation slot is provided on the handle. The angle scale indicator includes a reference mark and angle scales. The reference mark is located on the first outer wall of the fixed disk, and the angle scales are located on the second outer wall of the rotating disk. The mounting bracket is fixedly connected to the back plate of the fixed disk and a fixing object for securing the tree height measuring device. This device utilizes the rotating disk to measure the tree height by observing the angle scale aligned with the reference mark when the two ends of the observation slot and the top of the tree are on the same straight line.

[0004] During use, the above solution requires that the axis of the observation slot be aligned with the tree's apex on the same vertical plane. The fixed plate is fixed to the support rod by a mounting bracket. When the axis of the observation slot is not aligned with the tree's apex on the same vertical plane, the entire device needs to be rotated and readjusted to a horizontal position. This method is difficult to operate and has low installation efficiency. Summary of the Invention

[0005] The present invention aims to provide a tree height measuring device to solve the problem of low installation efficiency in the above-mentioned solutions.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A tree height measuring device includes a fixed platform, a rotating platform, a mounting box, and a drive assembly. At least three sets of telescopic rods are rotatably connected to the bottom of the fixed platform, and each telescopic rod has a fixed rod at its bottom. The rotating platform is rotatably mounted on top of the fixed platform along its axis. The rotating platform and the fixed platform are connected by a limiting assembly. A mounting plate is fixedly mounted on the top of the rotating platform, and a rotating shaft passes through the side wall of the mounting plate. One end of the mounting box is rotatably fitted onto the rotating shaft, and an infrared rangefinder is fixedly mounted on the other end of the mounting box. The infrared rays emitted by the infrared rangefinder are coplanar with the axis of the rotating shaft. The drive assembly is located on top of the rotating platform and is used to drive the mounting box to rotate.

[0008] The principle and effects of this technical solution:

[0009] During testing, multiple telescopic rods are rotated, and the bottom rods of each rod are inserted into the ground at appropriate positions. Then, each telescopic rod is extended, and the fixed platform is adjusted to a horizontal position. The infrared detector is then activated to emit infrared rays. The drive assembly rotates the mounting box and the infrared detector, while simultaneously rotating the rotating platform, until the infrared rays align with the top of the tree. The angle θ between the mounting box and the rotating platform is recorded. The drive assembly then rotates the mounting box to a horizontal position, and the distance D between the rotating shaft and the tree is measured. Using a length measuring tool such as a leveling rod or tape measure, the distance h between the infrared rays and the roots of the tree is measured. The tree height H is then calculated.

[0010] With the above setup, after the fixed platform is fixedly installed on the ground, the horizontal installation position of the infrared detector can be adjusted by rotating the platform, making it easy to adjust the infrared rays emitted by the infrared detector to be in the same vertical plane as the treetop, thus improving the installation efficiency and convenience of the device.

[0011] In this utility model, the top of the fixed platform has a groove along its axis, and a limit strip is fixedly provided on the side wall of the groove in the vertical direction. The limit assembly includes a vertical rod and a tension spring. The vertical rod is slidably inserted into the groove, and a limit groove that cooperates with the limit strip is provided on the side wall of the vertical rod. An outer edge protrudes from the outer periphery of the top of the vertical rod. The two ends of the tension spring are respectively connected to the bottom wall of the groove and the vertical rod. A sleeve is fixedly provided at the bottom of the rotating platform. The sleeve is rotatably fitted onto the outer edge, and an inner edge is fixedly provided at the bottom of the inner side wall of the sleeve below the outer edge. The outer periphery of the top of the fixed platform and the outer periphery of the bottom of the rotating platform are respectively fixedly provided with mutually cooperating ratchet racks.

[0012] The principle and effects of this technical solution:

[0013] When the infrared detector needs to be rotated along the vertical axis, the rotating platform is rotated in the first direction. At this time, the inclined surfaces of the two ratchet racks are in contact with each other. The rotating platform is pushed upward during the rotation, and at the same time, the inner edge of the sleeve pulls the vertical rod upward. During this process, the tension spring is stretched and has elastic force. After the rotating platform is rotated to the appropriate position, the external force applied to the rotating platform is released, and the tension spring pulls the vertical rod downward until the two ratchet racks mesh with each other. At this time, the rotating platform no longer rotates relative to the fixed platform.

[0014] With the above setup, the fixed platform and the vertical rod are connected by a tension spring. The operator needs to apply a force to overcome the elastic force of the tension spring and the friction between the two ratchet racks in order to rotate the rotating platform. This can prevent the infrared detector from rotating along the vertical axis of the fixed platform due to accidental contact during the measurement process, thus improving the stability of the device during use.

[0015] In this utility model, the top of the rotating table is provided with a sliding groove along the horizontal direction. The driving assembly includes a threaded rod and a slider. The threaded rod is rotatably disposed in the sliding groove along the horizontal direction. The slider is fitted onto the threaded rod and slides against the inner side wall of the sliding groove. The top of the slider is rotatably connected to a connecting rod, and the end of the connecting rod is rotatably connected to the bottom of the mounting box.

[0016] The principle and effects of this technical solution:

[0017] Because the slide groove restricts the rotation of the slider, the slider moves along the axis of the threaded rod as the threaded rod rotates. When the slider moves, it pushes the mounting box to rotate along the axis of rotation through the connecting rod.

[0018] The above settings achieve the purpose of rotating the mounting box, while also allowing the mounting box to remain stationary after rotating to the appropriate position.

[0019] In this invention, the side wall of the mounting plate is provided with angle scale lines along the axis of rotation, and a pointer is fixedly installed on the top of the mounting box, with the axis of the pointer coplanar with the axis of rotation. This design facilitates the reading of the rotation angle of the mounting box and the infrared detector by operators, improving detection efficiency.

[0020] In this invention, a support block is fixedly provided on the top of the rotating platform, which can abut against the bottom of the mounting box. When the bottom of the mounting box abuts against the top of the support block, the mounting box is in a horizontal state. This arrangement allows the infrared detector to be easily adjusted to a horizontal state, further improving the detection efficiency of the device.

[0021] In this invention, the telescopic rod includes a sleeve and a movable rod. The top of the sleeve is rotatably connected to the bottom of the fixed platform. The top of the movable rod is slidably inserted into the bottom of the sleeve. The chisel is fixedly disposed at the bottom of the movable rod. A through-hole is provided on the side wall of the sleeve. With the above arrangement, a fastening bolt is threaded into the screw hole. After the movable rod is slid to an appropriate position, the bottom of the fastening bolt abuts against the side wall of the movable rod, preventing the movable rod from moving relative to the sleeve during use.

[0022] In this invention, a level is fixedly installed on the outer wall of the fixed platform. This design allows workers to easily adjust the fixed platform to a level position. Attached Figure Description

[0023] Figure 1 is an isometric view of the overall structure of this utility model;

[0024] Figure 2 is an enlarged view of point A in Figure 1;

[0025] Figure 3 is a partial cross-sectional view of the present invention;

[0026] Figure 4 is an exploded view of the components of this utility model;

[0027] Figure 5 is an exploded view of the components of this utility model. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0029] The reference numerals in the accompanying drawings of the instruction manual include: 10, fixed platform; 11, groove; 12, limiting strip; 13, level; 20, telescopic rod; 21, rod sleeve; 211, screw hole; 22, movable rod; 23, chisel; 30, rotating platform; 31, mounting plate; 311, angle scale line; 32, rotating shaft; 33, sleeve; 34, inner edge; 35, slide groove; 36, support block; 41, vertical rod; 411, limiting groove; 412, outer edge; 42, tension spring; 43, ratchet rack; 50, mounting box; 51, infrared rangefinder; 52, pointer; 61, threaded rod; 62, slider; 63, connecting rod.

[0030] Example:

[0031] As shown in Figures 1-5, this utility model discloses a tree height measuring device, including a fixed platform 10, a rotating platform 30, a mounting box 50, and a driving assembly. At least three sets of telescopic rods 20 are rotatably connected to the bottom of the fixed platform 10 in the circumferential direction, and each telescopic rod 20 has a fixed rod 23 at its bottom. The rotating platform 30 is rotatably mounted on the top of the fixed platform 10 along its axis. The rotating platform 30 is connected to the fixed platform 10 through a limiting assembly. A mounting plate 31 is fixedly mounted on the top of the rotating platform 30, and a rotating shaft 32 passes through the side wall of the mounting plate 31. One end of the mounting box 50 is rotatably sleeved on the rotating shaft 32, and an infrared rangefinder 51 is fixedly mounted on the other end of the mounting box 50. The infrared rays emitted by the infrared rangefinder 51 are coplanar with the axis of the rotating shaft 32. The driving assembly is located on the top of the rotating platform 30 and is used to drive the mounting box 50 to rotate.

[0032] In this embodiment, the top of the fixed platform 10 is provided with a groove 11 along its axis, and a limit strip 12 is fixedly provided vertically on the side wall of the groove 11. The limit assembly includes a vertical rod 41 and a tension spring 42. The vertical rod 41 is slidably inserted into the groove 11, and a limit groove 411 that cooperates with the limit strip 12 is provided on the side wall of the vertical rod 41. An outer edge 412 protrudes from the outer periphery of the top of the vertical rod 41. The two ends of the tension spring 42 are respectively connected to the bottom wall of the groove 11 and the vertical rod 41. A sleeve 33 is fixedly provided at the bottom of the rotating platform 30. The sleeve 33 is rotatably sleeved on the outer edge 412, and an inner edge 34 is fixedly provided at the bottom of the inner side wall of the sleeve 33 below the outer edge 412. A ratchet rack 43 that cooperates with each other is fixedly provided on the outer periphery of the top of the fixed platform 10 and the outer periphery of the bottom of the rotating platform 30.

[0033] In this embodiment, the top of the rotating platform 30 is provided with a horizontal groove 35. The driving assembly includes a threaded rod 61 and a slider 62. The threaded rod 61 is rotatably disposed in the groove 35. The slider 62 is fitted onto the threaded rod 61 and slides against the inner wall of the groove 35. The top of the slider 62 is rotatably connected to a connecting rod 63. The end of the connecting rod 63 is rotatably connected to the bottom of the mounting box 50. When the mounting box 50 is in a horizontal state, the rotational connection point between the connecting rod 63 and the mounting box 50 is higher than the rotational connection point between the connecting rod 63 and the slider 62. One end of the threaded rod 61 extends outside the rotating disk and is fixedly provided with a handle.

[0034] In this embodiment, the side wall of the mounting plate 31 is provided with an angle scale line 311 along the axis of the rotating shaft 32, and a pointer 52 is fixedly provided on the top of the mounting box 50, the axis of the pointer 52 being coplanar with the axis of the rotating shaft 32.

[0035] In this embodiment, a support block 36 is fixedly provided on the top of the rotating platform 30, which can abut against the bottom of the mounting box 50.

[0036] In this embodiment, the telescopic rod 20 includes a rod sleeve 21 and a movable rod 22. The top of the rod sleeve 21 is rotatably connected to the bottom of the fixed platform 10. The top of the movable rod 22 is slidably inserted into the bottom of the rod sleeve 21. The chisel 23 is fixedly disposed at the bottom of the movable rod 22. A through screw hole 211 is provided on the side wall of the rod sleeve 21.

[0037] In this embodiment, a level 13 is fixedly installed on the outer side wall of the fixed platform 10.

[0038] The specific implementation process is as follows:

[0039] During testing, multiple telescopic rods 20 are rotated, and the bottom rods 23 of each telescopic rod 20 are inserted into the ground at appropriate positions. Then, each telescopic rod 20 is extended, and the fixed platform 10 is adjusted to a horizontal state. The infrared detector is then activated to emit infrared rays. The drive assembly is then rotated to rotate the mounting box 50 and the infrared detector, while the rotating platform 30 is rotated until the infrared rays are aligned with the top of the tree. The angle θ between the mounting box 50 and the rotating platform 30 is recorded. The drive assembly is then rotated to rotate the mounting box 50 to a horizontal state, and the distance D between the rotating shaft 32 and the tree is measured. Using a length measuring tool such as a leveling rod or tape measure, the distance h between the infrared rays and the roots of the tree is measured. The tree height H is then calculated.

[0040] When the infrared detector needs to be rotated along the vertical axis, the rotating platform 30 is rotated in the first direction. At this time, the inclined surfaces of the two ratchet racks 43 are in contact with each other. The rotating platform 30 is pushed upward during the rotation process. At the same time, the inner edge 34 of the sleeve 33 pulls the vertical rod 41 upward. During this process, the tension spring 42 is stretched and has elastic force. After the rotating platform 30 is rotated to the appropriate position, the external force applied to the rotating platform 30 is released. The tension spring 42 pulls the vertical rod 41 downward until the two ratchet racks 43 mesh with each other. At this time, the rotating platform 30 no longer rotates relative to the fixed platform 10.

[0041] Because the slide groove 35 restricts the rotation of the slider 62, the slider 62 moves along the axis of the threaded rod 61 as the threaded rod 61 rotates. When the slider 62 moves, it pushes the mounting box 50 to rotate along the axis of the rotating shaft 32 through the connecting rod 63.

[0042] The parts of the device not covered herein are the same as or can be implemented using existing technologies.

[0043] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A tree height measuring device, characterized in that, include: A fixed platform, with at least three sets of telescopic rods rotatably connected to its bottom along the circumference, each telescopic rod having a fixed chisel at its bottom; a rotating platform, rotatably mounted on top of the fixed platform along its axis, connected to the fixed platform via a limiting assembly, with a mounting plate fixedly mounted on its top, and a rotating shaft passing through its side wall; a mounting box, one end of which is rotatably fitted onto the rotating shaft, and the other end of which is fixedly mounted with an infrared rangefinder, the infrared rays emitted by the infrared rangefinder being coplanar with the axis of the rotating shaft; and a driving assembly, located on top of the rotating platform, used to drive the mounting box to rotate.

2. The tree height measuring device as described in claim 1, characterized in that: The top of the fixed platform has a groove along its axis, and a limit strip is fixedly installed vertically on the side wall of the groove. The limit assembly includes a vertical rod and a tension spring. The vertical rod is slidably inserted into the groove, and a limit groove that cooperates with the limit strip is opened on the side wall of the vertical rod. An outer edge protrudes from the outer periphery of the top of the vertical rod. The two ends of the tension spring are respectively connected to the bottom wall of the groove and the vertical rod. A sleeve is fixedly installed at the bottom of the rotating platform. The sleeve is rotatably fitted onto the outer edge, and an inner edge is fixedly installed at the bottom of the inner side wall of the sleeve below the outer edge. The outer periphery of the top of the fixed platform and the outer periphery of the bottom of the rotating platform are respectively fixedly installed with mutually cooperating ratchet racks.

3. The tree height measuring device as described in claim 2, characterized in that: The top of the rotating platform is provided with a horizontal groove. The driving assembly includes a threaded rod and a slider. The threaded rod is rotatably disposed in the groove. The slider is fitted onto the threaded rod and slides against the inner wall of the groove. The top of the slider is rotatably connected to a connecting rod, and the end of the connecting rod is rotatably connected to the bottom of the mounting box.

4. The tree height measuring device as described in any one of claims 1-3, characterized in that: Angle scale lines are provided on the side wall of the mounting plate along the axis of rotation, and a pointer is fixedly provided on the top of the mounting box, with the axis of the pointer being coplanar with the axis of rotation.

5. The tree height measuring device as described in claim 4, characterized in that: The top of the rotating platform is fixedly equipped with a support block that can abut against the bottom of the mounting box.

6. The tree height measuring device as described in claim 4, characterized in that: The telescopic rod includes a sleeve and a movable rod. The top of the sleeve is rotatably connected to the bottom of the fixed platform. The top of the movable rod is slidably inserted into the bottom of the sleeve. The chisel is fixedly installed at the bottom of the movable rod. A through screw hole is provided on the side wall of the sleeve.

7. The tree height measuring device as described in claim 4, characterized in that: A level is fixedly installed on the outer wall of the fixed platform.

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