Tree diameter measuring device for carbon sink metering

Abstract

The utility model provides a tree diameter measuring device for carbon sink metering. The tree diameter measuring device comprises a supporting rod, an adjusting assembly, a main box body, a perimeter measuring piece and a diameter measuring assembly. The diameter measuring assembly comprises a first measuring rod arranged on the main box body, a sliding rod arranged on the main box body in a sliding mode and a second measuring rod arranged on the sliding rod, the first measuring rod and the second measuring rod are telescopic rods, and the first measuring rod and the second measuring rod are oppositely arranged on the two sides of the main box body. The sliding rod and the main box body are in sliding fit in the opposite directions of the first measuring rod and the second measuring rod. The first measuring rod is hinged to the main box body, when the first measuring rod is driven to rotate to the maximum rotation position, the first measuring rod is perpendicular to the first measuring rod and the second measuring rod in the opposite direction, and the telescopic direction of the first measuring rod and the telescopic direction of the second measuring rod are consistent. First scales are marked on the main box body, and second scales are arranged on the sliding rod. The utility model has the advantages of convenient carrying and convenient access.

Description

Technical Field

[0001] This utility model relates to the technical field of forest tree growth measurement, and in particular to a tree diameter measuring device for carbon sequestration measurement. Background Technology

[0002] Carbon sinks are the processes by which carbon dioxide from the atmosphere is transferred to other carbon pools in the Earth's spheres, playing a role in reducing greenhouse gas concentrations and mitigating climate change. Diameter at breast height (DBH), referring to the diameter of a tree trunk at 1.3 meters above the ground, is a crucial indicator of a tree's carbon storage capacity. By measuring DBH, we can indirectly estimate a tree's carbon sequestration, carbon fixation, and carbon sink capacity. These indices are essential for assessing the carbon sink capacity of forests, and measuring both tree diameter and DBH provides more comprehensive and accurate data.

[0003] However, the cross-section of a tree trunk is not a regular circle. Therefore, measuring the diameter at breast height (DBH) and circumference of the trunk using relevant equipment can provide more accurate carbon sequestration data for subsequent calculations. Existing measuring devices, such as the utility model with patent publication number CN212007000U, involve a device for measuring the DBH and circumference of tall trees. This device includes a telescopic rod, a measuring tape box mounted on the telescopic rod, and crossbars installed on both sides of the measuring tape box. The measuring tape box contains a stretchable measuring tape. The two crossbars are aligned on the same straight line. A scale is provided at the center of the measuring tape box, extending to both sides onto the crossbars. The scale at the center of the measuring tape box is set to zero. Sleeves are installed on each crossbar, and these sleeves can slide along the length of the crossbars. Measuring rods are mounted on the sleeves, perpendicular to the crossbars. During measurement, the circumference can be measured by pulling the measuring tape out of the measuring tape box and wrapping it around the trunk; by sliding the sleeves so that the two measuring rods are just locked on both sides of the trunk, the diameter at breast height can be obtained by adding the scale values ​​of the sleeves on both sides.

[0004] However, the existing measuring devices are not convenient to carry when measuring in mountainous areas with poor road conditions, which makes it difficult to carry out the measurement work. Utility Model Content

[0005] To address the inconvenience of existing measurement methods, this invention provides a portable and easy-to-use tree diameter measuring device for carbon sequestration.

[0006] This utility model provides a tree diameter measuring device for carbon sequestration, which adopts the following technical solution:

[0007] A tree diameter measuring device for carbon sequestration includes a support rod, an adjustment assembly disposed on the support rod, a main housing disposed on the adjustment assembly, a circumference measuring component disposed on the main housing, and a diameter measuring assembly.

[0008] The diameter measuring assembly includes a measuring rod 1 mounted on the main housing, a sliding rod slidably mounted on the main housing, and a measuring rod 2 mounted on the sliding rod. Both measuring rod 1 and measuring rod 2 are telescopic rods, and are positioned opposite each other on both sides of the main housing. The sliding rod and the main housing slide in a direction opposite to that of measuring rod 1 and measuring rod 2. Measuring rod 1 is hinged to the main housing. When the measuring rod 1 is driven to rotate to its maximum rotation position, it is distributed in a direction perpendicular to that of measuring rod 1 and measuring rod 2, and the telescopic directions of measuring rod 1 and measuring rod 2 are consistent. The main housing is marked with a first scale, and the sliding rod is marked with a second scale.

[0009] Using the above technical solution, during measurement, the measuring angles of the circumference measuring component and the diameter measuring component are adjusted according to the different growth directions of the trees to facilitate the measurement of trees growing at an angle. For circumference measurement, the circumference of the trunk is measured using the circumference measuring component. For diameter at breast height (DBH) or trunk diameter measurement, the first measuring rod is driven to rotate to its maximum rotation position, so that the first measuring rod is distributed in a direction perpendicular to the second measuring rod, with the extension and retraction directions of the first and second measuring rods aligned. The sliding rod is then driven to slide along the opposite directions of the first and second measuring rods, extending them so that they are engaged on both sides of the trunk. The diameter data is obtained by reading the values ​​on the first and second scales.

[0010] When the measurement is completed, the measuring rod 1 and measuring rod 2 are retracted by driving the measuring rod 1 to rotate to the minimum rotation position, and the slide rod is reset, which in turn resets the measuring rod 2. The main body is also reset by adjusting the assembly, which effectively reduces the size of the equipment and makes it more portable when taking measurements in mountainous areas with poor road conditions.

[0011] Preferably, the support rod is a telescopic rod with a locking element.

[0012] With the above technical solution, during measurement, the support rod is extended by driving it and adjusted to a suitable angle using an adjusting component. The circumference of the tree trunk can be measured using a circumference measuring component, and the diameter at breast height (DBH) or other diameters at different heights of the trunk can be measured using a diameter measuring component. When finished, the support rod is retracted, further reducing the size of the equipment.

[0013] Preferably, the adjusting assembly includes a ball head seat connected to the support rod, a ball head rotatably disposed within the ball head seat, and a fastener for abutting the ball head. The ball head seat is fixed to the support rod, and the ball head seat has a ball groove. The shape of the ball head and the ball groove are mutually matched. One side of the ball head extends out of the ball groove. A connecting rod is disposed on the side of the ball head outside the ball groove. The connecting rod is connected to the ball head, and the connecting rod at the end away from the ball head is connected to the main housing.

[0014] With the above technical solution, during measurement, the main box can be rotated in any direction by driving the support rod to extend and retract, and by driving the ball head to rotate. The angle of the main box can be adjusted, and the main box can be fixed by fastening the ball head with fasteners. The measurement angles of the circumference measuring component and the diameter measuring component can be adjusted according to the growth direction of different trees, so as to facilitate the measurement of trees growing at an angle.

[0015] Preferably, the fastener includes a fastening screw and a handwheel disposed at one end of the fastening screw. A screw hole is provided on the side wall of the ball head seat. The screw hole communicates with the ball groove. The fastening screw is threadedly engaged with the screw hole. The fastening screw at the end away from the handwheel is threadedly engaged with the screw hole and extends into the ball groove. The end of the fastening screw extending into the ball groove abuts against the ball head.

[0016] With the above technical solution, rotating the handwheel drives the fastening screw to rotate, causing the fastening screw to extend into or out of the ball groove, thereby tightening or loosening the ball head. When the fastening screw tightens the ball head, it can fix the ball head and prevent it from rotating; when the fastening screw loosens the ball head, it can move the ball head to adjust the angle of the main box.

[0017] Preferably, the ball head is made of aluminum alloy.

[0018] Through the above technical solutions, aluminum alloys are lighter than other metal materials such as steel, and have better durability, and are not easily deformed or damaged, which is beneficial for carrying and use.

[0019] Preferably, the perimeter measuring component is a measuring tape, which is installed and wound inside the main box. The main box has a tape retraction opening through which the perimeter measuring component extends or retracts into the main box.

[0020] With the above technical solution, when measuring the circumference of a tree trunk, the circumference of the trunk can be measured by pulling the measuring tape out of the main box and wrapping it around the trunk.

[0021] Preferably, the measuring rod one includes an outer cylinder and an inner rod that slides into the outer cylinder. One side of the inner rod is a protruding side, which faces the measuring rod two. The protruding side extends into the outer cylinder and is in the same plane as the outer wall of the outer cylinder.

[0022] With the above technical solution, during measurement, the outer cylinder is driven to rotate to the maximum rotation position along the hinge axis, and the inner rod is driven to slide along the length direction of the outer cylinder, so that the inner rod extends out of the outer cylinder, thereby driving the measuring rod to extend. By abutting the outer cylinder or the protruding side against one side of the tree trunk, the accuracy of data acquisition is ensured and data errors are avoided.

[0023] Preferably, the measuring rod two includes an outer section, a middle section slidably disposed on the outer section, and an inner section slidably disposed on the middle section. One side of the outer section is connected to a slide rod. One side of the middle section is a first protruding side, which extends to the outer section. The side of the outer section connected to the slide rod is in the same plane as the first protruding side. One side of the inner section is a second protruding side, which extends to the outer section. The side of the outer section connected to the slide rod is in the same plane as the second protruding side.

[0024] With the above technical solution, during the sliding of the middle section along the length of the outer section, the first protruding side is always in the same plane as one side of the outer section connecting slide rod. During the sliding of the inner section along the length of the outer section, the second protruding side is also always in the same plane as one side of the outer section connecting slide rod. This ensures that the first and second protruding sides are in the same plane as the outer section, thereby ensuring data acquisition accuracy and avoiding data errors.

[0025] Preferably, the first scale is distributed along the sliding direction of the slide bar, and the first scale gradually increases from the direction closer to the measuring rod one to the direction closer to the measuring rod two. The plane where the protruding side is located is the 0 scale. The second scale is distributed in the same direction as the first scale, and the second scale gradually increases from the direction closer to the measuring rod two to the direction farther away from the measuring rod two. The scale on the plane where the first protruding side is located is the maximum value of the first scale.

[0026] With the above technical solution, during measurement, by abutting the outer cylinder or protruding side against one side of the tree trunk, the sliding rod is driven to slide along the length of the groove. The sliding rod extends into or out of the groove, driving the second measuring rod to move. The second measuring rod is extended to a suitable position, so that the outer section or the first or second protruding side abuts against the tree trunk, thereby locking the first and second measuring rods on both sides of the tree trunk. By observing the second scale value at the intersection of the main box and the sliding rod, the diameter data can be directly obtained. It has the advantages of convenient reading and high reading accuracy, thus facilitating the measurement of the diameter at breast height or other height values ​​of the tree trunk.

[0027] Preferably, the outer wall of the ball head seat is further provided with a rod return groove, the rod return groove being adapted to the shape of the connecting rod and extending through the ball groove.

[0028] By using the above technical solution, the connecting rod can be protected when the use is finished by driving the connecting rod to the retractable groove, and the length direction of the main box body can be aligned with the length direction of the support rod, thus making it easy to carry.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] During measurement, by extending and retracting the support rod and rotating the ball head, the main box can be rotated in any direction to adjust the angle of the main box. By turning the handwheel, the fastening screw is pressed against the ball head to fix the main box. The measurement angles of the circumference measuring component and the diameter measuring component can be adjusted according to the growth direction of different trees to facilitate the measurement of trees growing at an angle.

[0031] During measurement, by abutting the outer cylinder or protruding side against one side of the tree trunk, the sliding rod is driven to slide along the length of the groove. The sliding rod extends into or out of the groove, driving the second measuring rod to move. The second measuring rod is extended to a suitable position so that the outer section or the first or second protruding side abuts against the tree trunk, thereby locking the first and second measuring rods on both sides of the tree trunk. By observing the second scale value at the intersection of the main box and the sliding rod, the diameter data can be obtained directly. It has the advantages of convenient reading and high reading accuracy.

[0032] When the measurement is completed, the measuring rod one and measuring rod two are retracted by driving the outer cylinder to rotate to the minimum rotation position along the hinge axis, and the slide rod is reset, which in turn drives the measuring rod two to reset. The connecting rod is driven to the rod retraction slot, and the ball head is fastened by fasteners to prevent the main box from moving during the carrying process. The support rod is retracted by driving the support rod, thereby effectively reducing the size of the equipment in multiple directions, making it easy to carry. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0035] Figure 2 This is a side view of the overall structure of an embodiment of this utility model.

[0036] Figure 3 This is a cross-sectional view of the ball head seat in an embodiment of this utility model.

[0037] Figure 4 This is a schematic diagram of tree trunk measurement according to an embodiment of this utility model.

[0038] Figure 5 This is a schematic diagram of measuring rod one in an embodiment of this utility model.

[0039] Figure 6 yes Figure 1 Enlarged view of point A in the middle.

[0040] Figure 7 This is a state diagram of an embodiment of the present utility model.

[0041] The component designations are as follows: 1. Support rod; 2. Adjustment assembly; 21. Ball head seat; 22. Ball head; 23. Fastener; 231. Fastening screw; 232. Handwheel; 24. Connecting rod; 3. Main box; 4. Perimeter measuring component; 5. Diameter measuring assembly; 51. Measuring rod one; 511. Outer cylinder; 512. Inner rod; 513. Protruding side; 52. Sliding rod; 53. Measuring rod two; 531. Outer section; 532. Middle section; 533. Inner section; 534. First protruding side; 535. Second protruding side; 6. First graduation; 7. Second graduation; 8. Ball groove; 9. Retractable strap opening; 10. Retractable rod groove; 11. Trunk; 12. First rod groove; 13. Second rod groove; 14. Sliding groove. Detailed Implementation

[0042] The following will refer to the appendix in the embodiments of this utility model. Figures 1 to 7 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0043] A tree diameter measuring device for carbon sequestration measurement, referring to Figure 1 The system includes a support rod 1, an adjustment component 2 mounted on the support rod 1, and a main box 3 mounted on the adjustment component 2. The main box 3 is equipped with a circumference measuring component 4 and a diameter measuring component 5. The adjustment component 2 is used to adjust the angle of the main box 3 in multiple directions, the circumference measuring component 4 is used to measure the circumference of the trunk 11, and the diameter measuring component 5 is used to measure the diameter at breast height (DBH) of the trunk 11 or the diameter at other heights of the trunk 11.

[0044] Reference Figure 1 The support rod 1 is a telescopic rod with a locking mechanism. By driving the support rod 1 to extend, retract, and lock, it can support the adjustment component 2 and the main box 3. This support rod 1 is a relatively mature technology in the prior art, and will not be described in detail here. The adjustment component 2 is located at the top of the support rod 1. During measurement, the support rod 1 is extended and adjusted to a suitable angle using the adjustment component 2. The circumference of the trunk 11 can be measured using the circumference measuring component 4, and the diameter at breast height or other heights of the trunk 11 can be measured using the diameter measuring component 5. When finished, the support rod 1 is retracted.

[0045] Specifically, refer to Figure 2 and Figure 3The adjusting assembly 2 includes a ball head seat 21 connected to one end of the support rod 1, a ball head 22 rotatably disposed within the ball head seat 21, and a fastener 23 for abutting the ball head 22. The ball head seat 21 is cylindrical and distributed along the length of the support rod 1, and is fixed to the top of the support rod 1. A ball groove 8 is formed at the end of the ball head seat 21 opposite to the support rod 1. The ball head 22 is spherical, and its shape matches that of the ball groove 8, allowing the ball head 22 to move at any angle within the ball groove 8. Approximately two-thirds of the ball head 22 is located within the ball groove 8, and approximately one-third of the ball head 22 is located outside the ball groove 8 and protrudes from the ball head seat 21. Furthermore, the ball head 22 is made of aluminum alloy. Compared to other metal materials such as steel, aluminum alloy is lighter and more durable, less prone to deformation or damage, which is beneficial for carrying and use.

[0046] Reference Figure 2 and Figure 3 A connecting rod 24 is provided on one side of the ball head 22 outside the ball groove 8. The connecting rod 24 is a round rod, with one end connected to the ball head 22 and the other end connected to the main box 3 away from the ball head 22. The main box 3 is rectangular, and the connecting rod 24 is fixedly connected to one side of the main box 3 by bolts. Thus, by driving the ball head 22 to rotate, the angle of the main box 3 can be adjusted.

[0047] Continue to refer to Figure 2 and Figure 3 The fastener 23 includes a fastening screw 231 and a handwheel 232 disposed at one end of the fastening screw 231. A threaded hole is provided on the side wall of the ball head seat 21, communicating with the ball groove 8. The fastening screw 231 is threadedly engaged with the threaded hole, and the end of the fastening screw 231 away from the handwheel 232 is threadedly engaged with the threaded hole and extends into the ball groove 8. The end of the fastening screw 231 extending into the ball groove 8 abuts against the ball head 22. By rotating the handwheel 232, the fastening screw 231 can be driven to rotate, causing the fastening screw 231 to extend into or out of the ball groove 8, thereby tightening or loosening the ball head 22. When the fastening screw 231 tightens against the ball head 22, the ball head 22 is fixed, preventing rotation; when the fastening screw 231 loosens the ball head 22, the ball head 22 can be moved to adjust the angle of the main housing 3.

[0048] Reference Figure 2 and Figure 3Two fasteners 23 are provided, distributed opposite each other along the diameter direction of the ball head seat 21. Two screw holes are provided corresponding to each fastener 23. The fastening screws 231 of the two fasteners 23 are threaded into the two screw holes, and extend into the two screw holes respectively. Both fastening screws 231 extend into the ball groove 8 and abut against the ball head 22. The two fasteners 23 effectively prevent the ball head 22 from loosening, ensuring a more stable operation. During measurement, by driving the support rod 1 to extend and retract, and by driving the ball head 22 to rotate, the main housing 3 can be driven to rotate in any direction. Adjusting the angle of the main housing 3, and by turning the handwheel 232, the fastening screws 231 are pressed against the ball head 22, fixing the main housing 3. The measuring angles of the circumference measuring component 4 and the diameter measuring component 5 can be adjusted according to the growth direction of different trees to facilitate the measurement of trees growing at an angle.

[0049] Specifically, refer to Figure 1 and Figure 4 The perimeter measuring component 4 is a measuring tape, a mature technology that will not be elaborated upon further. The perimeter measuring component 4 is installed and wound up inside the main housing 3. A retraction opening 9 is provided on one long side of the main housing 3 near the connecting rod 24. The perimeter measuring component 4 extends out of or retracts into the main housing 3 through this opening. Therefore, when measuring the perimeter of the tree trunk 11, the perimeter of the tree trunk 11 can be measured by pulling the perimeter measuring component 4 out of the main housing 3 and wrapping it around the tree trunk 11.

[0050] During measurement, the circumference of the trunk 11 can be measured by extending and retracting the telescopic rod and adjusting the angle of the main box 3, pulling the circumference measuring component 4 out of the main box 3 and wrapping it around the trunk 11. The diameter at breast height or the diameter at other heights of the trunk 11 can be measured by using the diameter measuring component 5.

[0051] Specifically, refer to Figure 4 and Figure 5 The diameter measuring component 5 includes a measuring rod 51 rotatably mounted on the main housing 3, a sliding rod 52 slidably mounted on the main housing 3, and a measuring rod 53 mounted on the sliding rod 52. The measuring rod 51 and the measuring rod 53 are positioned opposite each other at both ends of the main housing 3.

[0052] Reference Figure 4 and Figure 5One end of the main box 3 has a first rod groove 12, and the measuring rod 51 is also a telescopic rod. The measuring rod 51 is located in the first rod groove 12, and the measuring rod 51 is distributed in a direction perpendicular to the measuring rod 51 and the measuring rod 53. The measuring rod 51 includes an outer cylinder 511 and an inner rod 512 that slides and engages with the outer cylinder 511. Both the outer cylinder 511 and the inner rod 512 are elongated, and both are distributed along the width direction of the main box 3. The inner rod 512 is elongated and its cross-section is convex. The inner rod 512 slides and engages with the outer cylinder 511 along its length. By driving the inner rod 512 to slide along the length direction of the outer cylinder 511, the inner rod 512 extends or retracts from one end of the outer cylinder 511, thereby driving the measuring rod 51 to extend or retract.

[0053] Continue to refer to Figure 4 and Figure 5 The outer cylinder 511 is hinged to the bottom of the first rod groove 12 via a hinge shaft. The outer cylinder 511 has a rotation range of 180 degrees. When the outer cylinder 511 is driven to rotate along the hinge shaft to the minimum rotation position, the outer cylinder 511 is located inside the first rod groove 12. When the outer cylinder 511 is driven to rotate along the hinge shaft to the maximum rotation position, the outer cylinder 511 protrudes from one side of the main box body 3, and the side of the outer cylinder 511 protruding from the main box body 3 is the same side as the side where the tape reel opening 9 is located. In addition, when the outer cylinder 511 rotates along the hinge shaft to the maximum rotation position, the groove wall of the first rod groove 12 also plays a supporting and limiting role.

[0054] Reference Figure 5 One side of the inner rod 512 is a protruding side 513, which faces the bottom of the first rod groove 12. The protruding side 513 extends into the outer cylinder 511 and is in the same plane as the outer wall of the outer cylinder 511. Thus, during the extension or retraction of the measuring rod 51, the protruding side 513 is always in the same plane as the outer wall of the outer cylinder 511. During measurement, the outer cylinder 511 is driven to rotate to the maximum rotation position along the hinge axis, and the inner rod 512 is driven to slide along the length of the outer cylinder 511, so that the inner rod 512 extends out of the outer cylinder 511, thereby driving the measuring rod 51 to extend. By abutting the outer cylinder 511 or the protruding side 513 against one side of the tree trunk 11, the accuracy of data acquisition is ensured and data errors are avoided.

[0055] Reference Figure 5 and Figure 6The main housing 3 has a second rod groove 13 at the end opposite to the measuring rod 51. The measuring rod 53 is located in the second rod groove 13, which facilitates the storage of the measuring rod 53 when not in use. The sliding rod 52 is a long rod distributed along the length of the main housing 3, and the measuring rod 53 is located at one end of the sliding rod 52. The bottom of the second rod groove 13 has a sliding groove 14 distributed along the length of the main housing 3. The end of the sliding rod 52 opposite to the measuring rod 53 extends into the sliding groove 14, and slides along the length of the sliding groove 14, thus limiting the sliding distance of the sliding rod 52. That is, the sliding rod 52 and the main housing 3 slide in opposite directions along the measuring rod 51 and the measuring rod 52. When the sliding rod 52 is driven to slide along the length of the sliding groove 14, the sliding rod 52 extends into or out of the sliding groove 14, and moves the measuring rod 53.

[0056] Continue to refer to Figure 5 and Figure 6 Measuring rod 2 53 is also a telescopic rod. When driving measuring rod 1 51 to rotate to the maximum rotation position, the telescopic directions of measuring rod 1 51 and measuring rod 2 53 are the same. Measuring rod 2 53 includes an outer section 531, a middle section 532 slidably disposed on the outer section 531, and an inner section 533 slidably disposed on the middle section 532. The outer section 531, middle section 532, and inner section 533 are all elongated. They are distributed along the width of the main box 3. One side of the outer section 531 is connected to the slide rod 52. The middle section 532 slides along the length of the outer section 531 and is fitted to the outer section 531. The inner section 533 slides along the length of the middle section 532 and is fitted to the middle section 532. By driving the inner section 533 to slide along the length of the middle section 532, the inner section 533 extends or retracts into the middle section 532. By driving the middle section 532 to slide along the length of the outer section 531, the middle section 532 extends or retracts into the outer section 531, thereby driving the measuring rod 53 to extend or retract.

[0057] Continue to refer to Figure 5 and Figure 6One side of the middle section 532 is a first protruding side 534, which extends to the outer section 531. The side of the outer section 531 connected to the slide rod 52 is in the same plane as the first protruding side 534. During the process of driving the middle section 532 to slide along the length direction of the outer section 531, the first protruding side 534 is always in the same plane as the side of the slide rod 52 connected to the outer section 531. One side of the inner section 533 is a second protruding side 535, which extends to the outer section 531. The side of the outer section 531 connected to the slide rod 52 is in the same plane as the second protruding side 535. During the process of driving the inner section 533 to slide along the length direction of the outer section 531, the second protruding side 535 is also always in the same plane as the side of the slide rod 52 connected to the outer section 531. This ensures that the first protruding side 534, the second protruding side 535, and the outer section 531 are in the same plane, thereby ensuring data acquisition accuracy and avoiding data errors.

[0058] Reference Figure 5 The main box 3 is marked with a first scale 6, which is distributed along the length of the main box 3. The first scale 6 gradually increases from near the first rod groove 12 to near the second rod groove 13, and the plane where the protruding side 513 is located is the 0 scale. The slide rod 52 is provided with a second scale 7, which is distributed along the length of the slide rod 52. The second scale 7 gradually increases from near the second measuring rod 53 to away from the second measuring rod 53, and the scale on the plane where the first protruding side 534 is located is the maximum value of the first scale 6.

[0059] During measurement, by abutting the outer cylinder 511 or the protruding side 513 against one side of the trunk 11, the sliding rod 52 is driven to slide along the length of the groove 14. The sliding rod 52 extends into or out of the groove 14, driving the measuring rod 53 to move. The measuring rod 53 is extended to a suitable position, so that the outer section 531 or the first protruding side 534 or the second protruding side 535 abuts against the trunk 11, thereby locking the measuring rod 51 and the measuring rod 53 on both sides of the trunk 11. By observing the value of the second scale 7 at the intersection of the main box 3 and the sliding rod 52, the diameter data can be directly obtained. It has the advantages of convenient reading and high reading accuracy, thus facilitating the measurement of the diameter at breast height or other height values ​​of the trunk 11.

[0060] In addition, refer to Figure 7 The outer wall of the ball head seat 21 is also provided with a rod retraction groove 10. The rod retraction groove 10 is semi-elliptical in shape and is adapted to the shape of the connecting rod 24. The rod retraction groove 10 passes through the ball groove 8. By driving the connecting rod 24 to the rod retraction groove 10, the connecting rod 24 can be protected when the use is completed, and the length direction of the main box 3 is consistent with the length direction of the support rod 1, so as to facilitate carrying.

[0061] Upon completion of the measurement, the measuring rod 51 is retracted by driving it, and the outer cylinder 511 is rotated along the hinge axis to its minimum rotation position, allowing the measuring rod 51 to be housed in the first rod groove 12. The measuring rod 53 is then retracted by driving it, and the sliding rod 52 slides along the length of the slide groove 14, causing the sliding rod 52 to extend into the slide groove 14 and resetting the measuring rod 53 to the second rod groove 13. The connecting rod is then driven to the rod-retracting groove 10, and the ball head 22 is secured by the fastener 23 to prevent movement of the main housing 3 during transport. The support rod 1 is also retracted, effectively reducing the size of the equipment and making it easier to carry.

[0062] The implementation principle of this application is as follows:

[0063] During measurement, by extending and retracting the support rod 1 and rotating the ball head 22, the main box 3 can be rotated in any direction. The angle of the main box 3 can be adjusted by rotating the handwheel 232 to make the fastening screw 231 press against the ball head 22 and fix the main box 3. The measurement angles of the circumference measuring component 4 and the diameter measuring component 5 can be adjusted according to the growth direction of different trees to facilitate the measurement of trees growing at an angle.

[0064] The circumference of the trunk 11 can be measured by pulling the circumference measuring piece 4 out of the main box 3 and wrapping it around the trunk 11. By driving the outer cylinder 511 to rotate to the maximum rotation position along the hinge axis and driving the inner rod 512 to slide along the length direction of the outer cylinder 511, the inner rod 512 extends out of the outer cylinder 511, thereby driving the measuring rod 51 to extend and bringing the outer cylinder 511 or the protruding side 513 against one side of the trunk 11. The drive slide rod 52 slides along the length of the slide groove 14. The slide rod 52 extends into or out of the slide groove 14, driving the measuring rod 53 to move. The measuring rod 53 is extended to a suitable position so that the outer section 531 or the first outer protruding side 534 or the second outer protruding side 535 abuts against the trunk 11, thereby locking the measuring rod 51 and the measuring rod 53 on both sides of the trunk 11. By observing the value of the second scale 7 at the intersection of the main box 3 and the slide rod 52, the diameter data can be obtained directly. It has the advantages of convenient reading and high accuracy, thus facilitating the measurement of the diameter at breast height or other height values ​​of the trunk 11.

[0065] Upon completion of the measurement, the measuring rod 51 is retracted by driving it, and the outer cylinder 511 is rotated along the hinge axis to its minimum rotation position, allowing the measuring rod 51 to be housed in the first rod slot 12. The measuring rod 53 is then retracted by driving it, and the sliding rod 52 slides along the length of the slide groove 14, causing the sliding rod 52 to extend into the slide groove 14 and resetting the measuring rod 53 to the second rod slot 13. The connecting rod is then driven to the rod retraction slot 10, and the ball head 22 is secured by the fastener 23 to prevent movement of the main housing 3 during transport. The support rod 1 is also retracted, effectively reducing the size of the equipment and making it more portable for measurements in mountainous terrain with poor road conditions.

[0066] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A tree diameter measuring device for carbon sequestration, characterized in that: It includes a support rod (1), an adjustment assembly (2) disposed on the support rod (1), a main box (3) disposed on the adjustment assembly (2), a circumference measuring component (4) disposed on the main box (3), and a diameter measuring assembly (5); The diameter measuring assembly (5) includes a measuring rod one (51) disposed on the main housing (3), a sliding rod (52) slidably disposed on the main housing (3), and a measuring rod two (53) disposed on the sliding rod (52). The measuring rod one (51) and the measuring rod two (53) are both telescopic rods. The measuring rod one (51) and the measuring rod two (53) are disposed opposite to each other on both sides of the main housing (3). The sliding rod (52) and the main housing (3) are along the measuring rod one (51) and the measuring rod two (53). The two (53) slide in opposite directions; the measuring rod one (51) is hinged to the main box (3). When the measuring rod one (51) is driven to rotate to the maximum rotation position, the measuring rod one (51) is distributed in opposite directions perpendicular to the measuring rod one (51) and the measuring rod two (53), and the extension and retraction directions of the measuring rod one (51) and the measuring rod two (53) are consistent; the main box (3) is marked with a first scale (6), and the sliding rod (52) is provided with a second scale (7).

2. The tree diameter measuring device for carbon sequestration according to claim 1, characterized in that: The support rod (1) is a telescopic rod with a locking element.

3. The tree diameter measuring device for carbon sequestration according to claim 1, characterized in that: The adjustment assembly (2) includes a ball head seat (21) connected to the support rod (1), a ball head (22) rotatably disposed in the ball head seat (21), and a fastener (23) for abutting the ball head (22). The ball head seat (21) is fixed to the support rod (1). The ball head seat (21) has a ball groove (8). The shape of the ball head (22) matches the shape of the ball groove (8). One side of the ball head (22) extends out of the ball groove (8). A connecting rod (24) is provided on the side of the ball head (22) outside the ball groove (8). The connecting rod (24) is connected to the ball head (22). The connecting rod (24) at the end away from the ball head (22) is connected to the main box (3).

4. The tree diameter measuring device for carbon sequestration according to claim 3, characterized in that: The fastener (23) includes a fastening screw (231) and a handwheel (232) disposed at one end of the fastening screw (231). A screw hole is provided on the side wall of the ball head seat (21), and the screw hole communicates with the ball groove (8). The fastening screw (231) is threadedly engaged with the screw hole. The fastening screw (231) at the end away from the handwheel (232) is threadedly engaged with the screw hole and extends into the ball groove (8). The end of the fastening screw (231) extending into the ball groove (8) abuts against the ball head (22).

5. A tree diameter measuring device for carbon sequestration according to claim 3, characterized in that: The ball head (22) is made of aluminum alloy.

6. The tree diameter measuring device for carbon sequestration according to claim 1, characterized in that: The perimeter measuring component (4) is a measuring tape. The perimeter measuring component (4) is installed and wound inside the main box (3). The main box (3) has a tape retraction opening (9). The perimeter measuring component (4) extends out of or retracts into the main box (3) through the tape retraction opening (9).

7. The tree diameter measuring device for carbon sequestration according to claim 1, characterized in that: The measuring rod one (51) includes an outer cylinder (511) and an inner rod (512) that slides into the outer cylinder (511). One side of the inner rod (512) is a protruding side (513), which faces the measuring rod two (53). The protruding side (513) extends to the outer cylinder (511) and is in the same plane as the outer wall of the outer cylinder (511).

8. A tree diameter measuring device for carbon sequestration according to claim 7, characterized in that: The measuring rod 2 (53) includes an outer section (531), a middle section (532) slidably disposed on the outer section (531), and an inner section (533) slidably disposed on the middle section (532). One side of the outer section (531) is connected to the slide rod (52). One side of the middle section (532) is a first protruding side (534), which extends to the outer section (531). The side of the outer section (531) connected to the slide rod (52) is in the same plane as the first protruding side (534). One side of the inner section (533) is a second protruding side (535), which extends to the outer section (531). The side of the outer section (531) connected to the slide rod (52) is in the same plane as the second protruding side (535).

9. A tree diameter measuring device for carbon sequestration according to claim 8, characterized in that: The first scale (6) is distributed along the sliding direction of the slide bar (52). The first scale (6) gradually increases from the direction closer to the measuring rod one (51) to the direction closer to the measuring rod two (53). The plane where the protruding side (513) is located is the 0 scale. The second scale (7) is distributed in the same direction as the first scale (6). The second scale (7) gradually increases from the direction closer to the measuring rod two (53) to the direction farther away from the measuring rod two (53). The scale on the plane where the first protruding side (534) is located is the maximum value of the first scale (6).

10. A tree diameter measuring device for carbon sequestration according to claim 3, characterized in that: The outer wall of the ball head seat (21) is also provided with a rod return groove (10), which is adapted to the shape of the connecting rod (24) and the rod return groove (10) passes through the ball groove (8).

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