Tree height measuring device

Abstract

The utility model aims to provide a tree height measuring device. The tree height measuring device comprises a base, a top seat, a left vertical rod, a right vertical rod, a suspension ring, a mounting shaft sleeve, a left lifting block, a right lifting block, a telescopic cross rod, an upper aiming wire and a lower aiming wire, the left lifting block is arranged on the left vertical rod; the right lifting block is arranged on the right vertical rod; scales are arranged on the left vertical rod, a lower aiming wire which is horizontal in the left-right direction is arranged on one side of the lower end of the left side face of the left vertical rod through a support, the lower aiming wire is perpendicular to the left vertical rod, and the scale corresponding to the lower aiming wire is a zero point. An upper aiming wire parallel to the lower aiming wire is arranged on one side of the left side face of the left lifting block, and the lower aiming wire and the upper aiming wire are located on the same vertical plane. The right lifting block is provided with a horizontal through hole in the front-back direction, and the telescopic transverse rod penetrates through the through hole to be arranged on the right lifting block. The tree height measuring device is high in convenience, wide in applicability and capable of effectively improving the tree height measuring efficiency and accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of forest tree height measurement, and specifically relates to a tree height measurement device. Background Art

[0002] In forestry surveys, various measurements need to be carried out on trees, such as: trunk diameter, tree height, tree crown width, branch angle, tree spacing, tree azimuth, ground slope, etc.

[0003] Currently, tree height measurement is mostly achieved by using some special tools, such as:

[0004] Application No.: 202020103178.X, a garden tree height measurement device, authorized by the patentee: Qingdao Boya Ecological Environment Engineering Co., Ltd., a height measuring instrument designed and manufactured according to the principle of similar triangles. A garden tree height measurement device is disclosed, including a support base, the height of which is adjustable; a vertical rod, the bottom of which is hinged to the top of the support base; a first ruler, perpendicularly and fixedly connected to the vertical rod; a slider, sleeved on the first ruler with a gap; a second ruler, fixedly connected to the top of the slider, the second ruler is perpendicular to the first ruler, and the second ruler is parallel to the vertical rod; a third ruler, fixedly connected to the bottom of the slider, the third ruler is parallel to the vertical rod; the central axes of the third ruler and the second ruler are on the same straight line. In this utility model, the hinge connection between the vertical rod and the support base enables the angle of the vertical rod to be adjustable. Whether the ground is uneven or the tree trunk is not vertical, the parallelism between the vertical rod and the tree trunk can be achieved by adjusting the angle of the vertical rod relative to the support base, which can improve the accuracy of tree trunk length measurement.

[0005] However, this technology has many problems, specifically as follows:

[0006] (1) Poor applicability, only suitable for measuring garden trees distributed on flat slopes and gentle slopes. For forest trees on slopes, steep slopes, and acute slopes, due to the large slope, it is difficult or impossible to set up a tripod, and it is difficult or impossible to measure their tree heights.

[0007] (2) Complicated operation. When the eye height is higher than the tree base horizontal line and lower than the tree top horizontal line, it is necessary to observe the tree top and tree base and read the values by moving the lifting rings on the second ruler and the third ruler, and the tree height can be calculated by adding the two observed values. When the eye height is lower than the tree trunk base horizontal line, it is necessary to observe the tree top and tree base and read the values by moving the lifting ring on the second ruler in sequence, and the tree height can be calculated by subtracting the two observed values.

[0008] (3) Insufficient accuracy. Since it is impossible to confirm whether the first ruler is horizontal and whether the second ruler and the third ruler are plumb, theoretically, it is impossible to ensure the accuracy of tree height measurement for plumb trees.

[0009] (4) Poor convenience. Due to the presence of the tripod, support base, and vertical rod, the whole device is large in volume and heavy in weight, making it inconvenient to carry and not suitable for use in forest areas with inconvenient transportation and long-distance walking. Summary of the Invention

[0010] The utility model aims to provide a tree height measuring device, which is small in volume, light in weight, and has strong convenience. It is suitable for use in various terrains such as flat slopes, gentle slopes, slopes, steep slopes, and extremely steep slopes, has a wide applicability, and can effectively improve the efficiency and accuracy of tree height measurement.

[0011] The described tree height measuring device includes a base, a top seat, a left vertical rod, a right vertical rod, a suspension ring, a mounting bushing, a left lifting block, a right lifting block, a telescopic cross bar, an upper aiming wire, and a lower aiming wire;

[0012] The left vertical rod is vertically installed on the left side of the top surface of the base through a mounting seat, and the right vertical rod is vertically installed on the right side of the top surface of the base; the upper ends of the left vertical rod and the right vertical rod are respectively fixedly connected to the bottom surface of the top seat, and the top surface of the top seat is provided with a mounting bushing. The suspension ring is installed on the mounting bushing through a rotating shaft, and the rotating shaft is horizontally arranged in the front-rear direction; a spirit level bubble is provided on the base.

[0013] The left lifting block is arranged on the left vertical rod and can slide up and down along the left vertical rod. A locking mechanism I is provided on the left lifting block, which can fix the left lifting block on the left vertical rod; the right lifting block is arranged on the right vertical rod and can slide up and down along the right vertical rod. A locking mechanism II is provided on the right lifting block, which can fix the right lifting block on the right vertical rod.

[0014] The left vertical rod is provided with scales. A lower aiming wire horizontally arranged in the left-right direction is provided on one side of the lower end of the left side surface of the left vertical rod through a bracket. The lower aiming wire is perpendicular to the left vertical rod, and the scale corresponding to the lower aiming wire is zero; an upper aiming wire parallel to the lower aiming wire is provided on one side of the left side surface of the left lifting block, and the lower aiming wire and the upper aiming wire are in the same vertical plane.

[0015] A through hole horizontally arranged in the front-rear direction is provided on the right lifting block, and the telescopic cross bar is arranged on the right lifting block through the through hole.

[0016] A spacing is left between the left vertical rod and the right vertical rod, and this spacing enables the left lifting block and the right lifting block to slide without interference.

[0017] The scales are marked in millimeters and the values are marked every centimeter. An electronic reader is provided on the left lifting block, which can automatically read the scale value.

[0018] The upper aiming wire and the lower aiming wire are of equal length.

[0019] The upper aiming wire and the lower aiming wire are both located outside the left vertical rod.

[0020] A fastening groove I is provided in the middle of the left side surface of the left vertical rod. The locking mechanism I is an elastic steel wire I. One end of the elastic steel wire I is fixed on the left lifting block, and the other end extends into the fastening groove I and presses against the fastening groove I through pressure.

[0021] A fastening groove II is provided in the middle of the right side surface of the right vertical rod. The locking mechanism II is an elastic steel wire II. One end of the elastic steel wire II is fixed on the right lifting block, and the other end extends into the fastening groove II and presses against the fastening groove II through pressure.

[0022] The telescopic cross bar includes a first tube body and a second tube body; the second tube body is nested in the first tube body, the right end of the second tube body extends out from the right end opening of the first tube body, and the second tube body can slide relative to the first tube body;

[0023] A positioning hole is provided near the left end of the outer wall of the second tube body. A V-shaped elastic sheet is provided in the second tube body corresponding to the positioning hole. A positioning column is provided on the V-shaped elastic sheet. Under the elastic force of the V-shaped elastic sheet, the positioning column extends out of the positioning hole and elastically presses against the inner wall of the first tube body.

[0024] A fastening groove is provided at the bottom inside the through hole. The cap-shaped marble and the spring are arranged in the fastening groove. The spring is arranged on the bottom surface of the fastening groove. The upper part of the spring is connected to the bottom of the cap-shaped marble. A limiting ring is provided at the notch of the fastening groove. In the natural state, the hemispherical surface of the cap-shaped marble extends out of the fastening groove and is limited by the limiting ring.

[0025] A receiving through hole is provided on the right lifting block. A receiving hole groove corresponding to the receiving through hole is provided on the top surface of the base. The telescopic cross bar is inserted into the receiving through hole and the receiving hole groove at the same time, so as to store and place the telescopic cross bar.

[0026] The usage method of the present utility model is as follows:

[0027] As Figure 7 shown, select the tree A to be measured. According to the tree height and the occlusion of the understory vegetation, select the observation point B. It is required that the observation point B can observe the tree base and the tree top of the tree A to be measured at the same time, and the horizontal distance from the observation point to the tree A to be measured is estimated to be greater than or equal to the tree height H2.

[0028] Use a tape measure or a laser rangefinder to measure the horizontal distance L2 from the observation point B to the tree base center of the tree A to be measured. According to the L2 distance, adjust the horizontal length L1 from the end of the first tube body of the telescopic cross bar close to the lower eyelid to the lower aiming wire to be 1 / 100 of L2 minus the eye axis length correction value Y. For example, if Y is taken as 1.8 cm and L2 is 15 m, then L1 should be adjusted to 15 - 1.8 = 13.2 cm.

[0029] The handheld suspension ring uses the self - gravity of the left vertical rod, right vertical rod, and telescopic cross - rod to make it in a natural hanging state. Adjust the length of the second tube body of the telescopic cross - rod until the spirit bubble is centered. At this time, the vertical rod is in the plumb state.

[0030] Hold the suspension ring by hand, making the axial direction of the telescopic cross - rod face the direction of the tree A to be measured. At this time, the front end of the second tube body faces the tree A to be measured. Keep the rear end of the telescopic cross - rod close to the lower eyelid and keep this horizontal position unchanged. Move the arm vertically up or down to drive the lower aiming wire up or down until the lower aiming wire is aimed at the tree base position through visual observation. Push the right lifting block up or down to make the rear end of the first tube body of the cross - rod reach the position close to the lower eyelid.

[0031] Keep the lower aiming wire of the vertical rod aligned with the tree base position. Push the left lifting block up to drive the upper aiming wire up until the upper aiming wire is aimed at the tree top position through visual observation. Further observe with the eyes whether the upper aiming wire and the lower aiming wire are simultaneously locked to aim at the tree top and the tree base. If so, read the height H1 of the upper aiming wire in the scale area of the vertical rod. If not, push the left lifting block up or down to drive the upper aiming wire up or down until the upper aiming wire and the lower aiming wire are simultaneously locked and aligned with the tree top and the tree base, and then read the height H1 of the upper aiming wire on the electronic reader.

[0032] According to the calculation principle of similar triangles, we get L2 / (L1 + Y)=H2 / H1. Then the tree height H2 = L2 / (L1 + Y)*H1. According to the above setting, the cross - rod length L1 is 1 / 100 of L2 minus the eye - axis length correction value Y. Then the tree height H2 = L2 / (L2 / 100 - Y + Y)*H1 = 100*H1. Assuming H1 = 12 cm, then the tree height H2 = 100*0.12 = 12 m.

[0033] The beneficial effects of the present utility model are as follows:

[0034] 1. The present utility model can improve the accuracy of tree height measurement. Through the telescopic cross - rod design, the load on both sides of the vertical rod is balanced. Through the suspension ring, the self - gravity of the left vertical rod, right vertical rod, and telescopic cross - rod is used to make the left and right vertical rods in the plumb state. Through the spirit bubble design, it can be confirmed whether the left and right vertical rods are in the plumb state, so as to keep the horizontal distance from the upper and lower aiming wires to the retina of the eye consistent, and ensure the accuracy of tree height measurement.

[0035] 2. The present utility model can improve the efficiency of tree height measurement. Through the design that the lower aiming wire is at the zero - scale position and the right lifting block drives the telescopic cross - rod to move up and down, it realizes that the tree height can be calculated with one observation and one reading at any observation point, simplifies the height - measurement procedure, and avoids the cumbersome process of adding or subtracting the readings of two observations to calculate the tree height. And only one error is generated in one observation, thus improving the accuracy of tree height measurement.

[0036] 3. The device of the utility model is small in volume and light in weight, can be disassembled and stored, is convenient to carry, and is suitable for use in forest areas and gardens.

[0037] 4. The device of the utility model is easy to operate and is suitable for use on various terrains such as flat slopes, gentle slopes, slopes, steep slopes, and sharp slopes.

[0038] 5. The device of the utility model has a simple structure, is convenient for processing and manufacturing, and saves measurement costs. Description of the Drawings

[0039] Figure 1 Schematic structural diagram of the tree height measuring device for the embodiment;

[0040] Figure 2 Schematic structural diagram of another perspective of the tree height measuring device for the embodiment;

[0041] Figure 3 Enlarged schematic diagram of the left lifting block mounting structure for the embodiment;

[0042] Figure 4 Enlarged schematic diagram of the right lifting block mounting structure for the embodiment;

[0043] Figure 5 Schematic diagram of the fastening groove and fastening structure in the through hole for the embodiment; the upper figure shows the state without inserting the telescopic cross bar, and the lower figure shows the state with the telescopic cross bar inserted;

[0044] Figure 6 Schematic diagram of the structure of the telescopic cross bar for the embodiment;

[0045] Figure 7 Test schematic diagram of the tree height measuring device for the embodiment;

[0046] The numbers and names in the figure are as follows:

[0047] 1 - Base, 2 - Top seat, 3 - Left vertical rod, 4 - Right vertical rod, 5 - Suspension ring, 6 - Mounting bushing, 7 - Left lifting block, 8 - Right lifting block, 9 - Telescopic cross bar, 10 - Upper aiming wire, 11 - Lower aiming wire, 12 - Scale, 13 - Bracket, 14 - Through hole, 15 - Fastening groove Ⅰ, 16 - Elastic wire Ⅰ, 17 - Fastening groove Ⅱ, 18 - Elastic wire Ⅱ, 19 - First tube body, 20 - Second tube body, 21 - Positioning hole, 22 - V-shaped elastic piece, 23 - Positioning column, 24 - Fastening groove, 25 - Cap-shaped marble, 26 - Spring, 27 - Limit ring, 28 - Storage through hole, 29 - Storage hole groove, 30 - Level bubble, 31 - Mounting seat. Detailed Description of the Invention

[0048] The present utility model will be specifically described below in conjunction with the drawings and embodiments. Example 1

[0049] As Figures 1-6 shown, the tree height measuring device includes a base 1, a top seat 2, a left vertical rod 3, a right vertical rod 4, a suspension ring 5, a mounting bushing 6, a left lifting block 7, a right lifting block 8, a telescopic cross bar 9, an upper aiming wire 10, and a lower aiming wire 11;

[0050] The left vertical rod 3 is vertically mounted on the left side of the top surface of the base 1 through a mounting seat 31, and the right vertical rod 4 is vertically mounted on the right side of the top surface of the base 1; the upper ends of the left vertical rod 3 and the right vertical rod 4 are respectively fixedly connected to the bottom surface of the top seat 2, and a mounting bushing 6 is provided on the top surface of the top seat 2. The suspension ring 5 is mounted on the mounting bushing 6 through a rotating shaft, and the rotating shaft is horizontally arranged in the front-rear direction; a level bubble 30 is provided on the base 1;

[0051] The left lifting block 7 is provided on the left vertical rod 3 and can slide up and down along the left vertical rod 3. A locking mechanism I is provided on the left lifting block 7, which can fix the left lifting block 7 on the left vertical rod 3; the right lifting block 8 is provided on the right vertical rod 4 and can slide up and down along the right vertical rod 4. A locking mechanism II is provided on the right lifting block 8, which can fix the right lifting block 8 on the right vertical rod 4;

[0052] A scale 12 is provided on the left vertical rod 3. The scale 12 is marked in millimeters and the value is marked every centimeter. An electronic reader is provided on the left lifting block 7, which can automatically read the scale value. A lower aiming wire 11 horizontally arranged in the left-right direction is provided on the lower side of the left side surface of the left vertical rod 3 through a bracket 13. The lower aiming wire 11 is perpendicular to the left vertical rod 3, and the scale 12 corresponding to the lower aiming wire 11 is zero; an upper aiming wire 10 parallel to the lower aiming wire 11 is provided on the side of the left side surface of the left lifting block 7. The lower aiming wire 11 and the upper aiming wire 10 are in the same vertical plane; both the upper aiming wire 10 and the lower aiming wire 11 are located outside the left vertical rod 3; the upper aiming wire 10 and the lower aiming wire 11 have the same length;

[0053] A through hole 14 horizontally arranged in the front-rear direction is provided on the right lifting block 8, and the telescopic cross bar 9 passes through the through hole 14 and is provided on the right lifting block 8.

[0054] A spacing is left between the left vertical rod 3 and the right vertical rod 4, and this spacing enables the left lifting block 7 and the right lifting block 8 to slide without interference.

[0055] A fastening groove I 15 is provided in the middle of the left side surface of the left vertical rod 3. The locking mechanism I is an elastic wire I 16. One end of the elastic wire I 16 is fixed on the left lifting block 7, and the other end extends into the fastening groove I 15 and presses against the fastening groove I 15 through pressure.

[0056] On the middle part of the right side surface of the right vertical rod 4, there is a fastening groove II 17. The locking mechanism II is an elastic wire II 18. One end of the elastic wire II 18 is fixed on the right lifting block 8, and the other end extends into the fastening groove II 17 and presses against the fastening groove II 17 by pressure.

[0057] The telescopic cross bar 9 includes a first pipe body 19 and a second pipe body 20. The second pipe body 20 is nested inside the first pipe body 19. The right end of the second pipe body 20 extends out from the right end opening of the first pipe body 19, and the second pipe body 20 can slide relative to the first pipe body 19.

[0058] At the position near the left end of the outer wall of the second pipe body 20, there is a positioning hole 21. Inside the second pipe body 20 corresponding to the positioning hole 21, there is a V-shaped elastic sheet 22. On the V-shaped elastic sheet 22, there is a positioning post 23. Under the elastic force of the V-shaped elastic sheet 22, the positioning post 23 extends out of the positioning hole 21 and elastically presses against the inner wall of the first pipe body 19.

[0059] At the bottom inside the through hole 14, there is a fastening groove 24. The cap-shaped marble 25 and the spring 26 are arranged in the fastening groove. The spring 26 is arranged on the bottom surface of the fastening groove 24. The upper part of the spring 26 is connected to the bottom of the cap-shaped marble 25. A limiting ring 27 is arranged at the notch of the fastening groove 24. In the natural state, the hemispherical surface of the cap-shaped marble 25 extends out of the fastening groove 24 and is limited by the limiting ring 27.

[0060] On the right lifting block 8, there is a storage through hole 28. On the top surface of the base 1 corresponding to the storage through hole 28, there is a storage hole groove 29. The telescopic cross bar 9 is inserted into both the storage through hole 28 and the storage hole groove 29 at the same time, so as to store and place the telescopic cross bar 9.

[0061] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", "right", "front", "rear", etc. are based on the orientation or positional relationships shown in the attached Figure 1 figures. They are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

Claims

1. A tree height measuring device, comprising a base (1), a top base (2), a left vertical rod (3), a right vertical rod (4), a suspension ring (5), a mounting sleeve (6), a left lifting block (7), a right lifting block (8), a telescopic cross bar (9), an upper aiming wire (10), and a lower aiming wire (11), characterized in that: The left vertical rod (3) is vertically mounted on the left side of the top surface of the base (1) through a mounting seat (31), and the right vertical rod (4) is vertically mounted on the right side of the top surface of the base (1); the upper ends of the left vertical rod (3) and the right vertical rod (4) are respectively fixedly connected to the bottom surface of the top seat (2); the top surface of the top seat (2) is provided with a mounting sleeve (6); the suspension ring (5) is mounted on the mounting sleeve (6) through a rotating shaft, and the rotating shaft is horizontally arranged in the front-rear direction; a level bubble (30) is provided on the base (1); The left lifting block (7) is arranged on the left vertical rod (3) and can slide up and down along the left vertical rod (3). The left lifting block (7) is provided with a locking mechanism I, which can fix the left lifting block (7) on the left vertical rod (3); the right lifting block (8) is arranged on the right vertical rod (4) and can slide up and down along the right vertical rod (4). The right lifting block (8) is provided with a locking mechanism II, which can fix the right lifting block (8) on the right vertical rod (4); The left vertical rod (3) is provided with a scale (12), and a lower aiming wire (11) is provided on one side of the lower end of the left side surface of the left vertical rod (3) through a bracket (13) and is horizontally arranged along the left and right directions. The lower aiming wire (11) is perpendicular to the left vertical rod (3), and the scale (12) corresponding to the lower aiming wire (11) is a zero point; an upper aiming wire (10) is provided on one side of the left side surface of the left lifting block (7) and is parallel to the lower aiming wire (11), and the lower aiming wire (11) and the upper aiming wire (10) are located on the same vertical plane; The right lifting block (8) is provided with a through hole (14) horizontally extending in the front-rear direction, and the telescopic cross bar (9) passes through the through hole (14) and is arranged on the right lifting block (8).

2. The tree height measuring device according to claim 1, characterized in that: A spacing is left between the left vertical rod (3) and the right vertical rod (4), and the spacing ensures that the left lifting block (7) and the right lifting block (8) do not interfere with each other when they slide.

3. The tree height measuring device according to claim 1, characterized in that: The scale (12) is marked in millimeters (12), and the value is marked in centimeters. The left lifting block (7) is provided with an electronic reader that can automatically read the scale value.

4. The tree height measuring device according to claim 1, characterized in that: The upper aiming wire (10) and the lower aiming wire (11) are of equal length.

5. The tree height measuring device according to claim 1, characterized in that: The upper aiming wire (10) and the lower aiming wire (11) are both located outside the left vertical rod (3).

6. The tree height measuring device according to claim 1, characterized in that: A fastening groove I (15) is provided in the middle of the left side surface of the left vertical rod (3). The locking mechanism I is an elastic steel wire I (16). One end of the elastic steel wire I (16) is fixed to the left lifting block (7), and the other end extends into the fastening groove I (15) and presses against the fastening groove I (15) through pressure.

7. The tree height measuring device according to claim 1, characterized in that: A fastening groove II (17) is provided in the middle of the right side surface of the right vertical rod (4), and the locking mechanism II is an elastic steel wire II (18). One end of the elastic steel wire II (18) is fixed to the right lifting block (8), and the other end extends into the fastening groove II (17) and presses against the fastening groove II (17) through pressure.

8. The tree height measuring device according to claim 1, characterized in that: The telescopic cross bar (9) comprises a first tube body (19) and a second tube body (20); the second tube body (20) is nested in the first tube body (19), the right end of the second tube body (20) protrudes from the right end opening of the first tube body (19), and the second tube body (20) can slide relative to the first tube body (19); A positioning hole (21) is provided on the outer wall of the second tube body (20) near the left end, and a V-shaped elastic sheet (22) is provided in the second tube body (20) at a position corresponding to the positioning hole (21). A positioning column (23) is provided on the V-shaped elastic sheet (22). Under the elastic force of the V-shaped elastic sheet (22), the positioning column (23) extends out of the positioning hole (21) and elastically presses the inner wall of the first tube body (19).

9. The tree height measuring device according to claim 8, characterized in that: A fastening groove (24) is provided at the bottom of the through hole (14), a cap-shaped marble (25) and a spring (26) are arranged in the fastening groove, a spring (26) is arranged on the bottom surface of the fastening groove (24), an upper part of the spring (26) is connected to the bottom of the cap-shaped marble (25), a limiting ring (27) is provided at the notch of the fastening groove (24), and in a natural state, a hemispherical surface of the cap-shaped marble (25) extends out of the fastening groove (24) and is limited by the limiting ring (27).

10. The tree height measuring device according to claim 1, characterized in that: The right lifting block (8) is provided with a storage through hole (28), and the top surface of the base (1) is provided with a storage hole groove (29) corresponding to the storage through hole (28). The telescopic cross bar (9) is inserted into the storage through hole (28) and the storage hole groove (29) at the same time, so that the telescopic cross bar (9) is stored.

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