A tree diameter measurement device

Abstract

The present invention provides a tree diameter measuring device, which relates to the technical field of tree diameter measurement. It includes an installation component configured to be fixed on the surface of the tree trunk, having a fixing part and a sliding part, and the sliding part can move along the axial direction of the tree trunk; a driving component is arranged on the sliding part, having a surrounding part and a linkage part; a measuring component is connected to the linkage part, including a first measuring part and a second measuring part. The first measuring part moves towards or away from the surface of the tree trunk as it rotates with the linkage part, and the second measuring part is sleeved with the first measuring part. High-precision measurement of the tree diameter is achieved, and at the same time, it has good adaptability and long-term monitoring ability. In addition, the tree diameter measuring device can be fixed on the surface of the tree trunk for a long time without frequent disassembly, and can repeatedly measure the change of the tree diameter at the same position after the tree has grown for a period of time, providing continuous and reliable data support for forestry research and management.

Description

Technical Field

[0001] The present invention relates to a tree diameter measuring device, belonging to the technical field of tree diameter detection, and particularly to a tree diameter measuring device that improves the detection result. Background Art

[0002] The tree diameter, as an important indicator for measuring the growth status of trees, is widely used in forestry management, scientific research, forest resource surveys and other fields. The accurate measurement of the tree diameter is of great significance for evaluating the health of trees, calculating the biomass of trees, and conducting forestry resource planning.

[0003] In the prior art, the most common method for measuring the tree diameter is to use tools such as a steel tape or a flexible tape to wrap around the trunk for one week. The measurer tightly wraps the steel tape around the surface of the trunk for one week and calculates the diameter of the tree based on the measured length. Although this method is simple and easy to operate and has a low cost, it has many limitations. During the growth process of trees, the trunk shape is often irregular, and the protrusions, depressions or bends on the tree surface are quite common. Therefore, the actual diameter of the tree cannot be accurately reflected only by measuring around the tree for one week. Summary of the Invention

[0004] Based on this, in view of the problem of poor measurement effect of the current tree diameter measuring device, it is necessary to provide a tree diameter measuring device.

[0005] The above object is achieved by the following technical solutions:

[0006] A tree diameter measuring device includes:

[0007] An installation component configured to be fixed on the surface of the trunk, having a fixing part and a sliding part, and the sliding part can move along the axial direction of the trunk;

[0008] A driving component arranged on the sliding part, having a surrounding part and a linkage part;

[0009] Wherein, one end of the surrounding part is connected to the linkage part in a retractable manner and surrounds the circumferential surface of the trunk, and the other end is fixed to the linkage part or the sliding part;

[0010] Wherein, the retractable connection allows the perimeter of the surrounding part to be automatically adjusted according to the change of the tree diameter and causes the linkage part to rotate;

[0011] A measuring component connected to the linkage part, including a first measuring part and a second measuring part. The first measuring part moves towards or away from the surface of the trunk as the linkage part rotates, and the second measuring part is sleeved on the first measuring part;

[0012] During the first measurement process, the first measuring part is controlled by the rotation of the linkage part and moves towards or away from the tree trunk surface. The second measuring part only displaces relative to the first measuring part and forms a displacement amount when the first measuring part moves towards the tree trunk surface.

[0013] Moreover, during the second measurement process, the second measuring part maintains the displacement amount in the first measurement process, follows the first measuring part to move towards or away from the tree trunk surface, and is locked when moving towards the tree trunk surface to this displacement amount.

[0014] Preferably, the fixing part includes:

[0015] A fixing panel configured to be fixed to the tree trunk surface by bolts;

[0016] A first sliding groove opened on the fixing panel and configured to form a sliding connection with the sliding part;

[0017] A second sliding groove opened on the fixing panel and configured to allow the first measuring part to pass through.

[0018] Preferably, the sliding part includes:

[0019] A bearing shell slidably connected to the first sliding groove;

[0020] A third sliding groove opened on the bottom surface of the bearing shell for the sliding movement of the first measuring part;

[0021] A constraint groove opened on the bottom surface of the bearing shell for the sliding movement of the second measuring part;

[0022] Wherein, the inner wall surface of the constraint groove close to the tree trunk surface is a constraint surface and provides a stop for the second measuring part;

[0023] Moreover, the first measuring part and the second measuring part are located inside the bearing shell.

[0024] Preferably, the first measuring part and the second measuring part form a friction socket joint;

[0025] And, the friction socket joint means that when the second measuring part is subjected to a force to keep it stationary, the second measuring part displaces relative to the first measuring part; and when the second measuring part is not subjected to an external force, the second measuring part displaces synchronously with the first measuring part;

[0026] Wherein, the force that keeps the second measuring part stationary is the stop force provided by the constraint surface.

[0027] Preferably, it includes:

[0028] The locking part is assembled to the end face of the fixed panel facing the tree trunk surface during the second measurement process;

[0029] Wherein, the locking part is configured to provide a magnetic suction force for locking the current position of the second measuring part when the second measuring part contacts the constraint surface.

[0030] Preferably, the fixed panel has a mounting groove, and the locking part is assembled into the mounting groove.

[0031] Preferably, it includes:

[0032] A first engaging part and a second engaging part;

[0033] The first engaging part is arranged on the locking part;

[0034] The second engaging part is arranged on the second measuring part;

[0035] And, when the second measuring part is locked, the first engaging part and the second engaging part are coupled.

[0036] Preferably, the second engaging part is elastically connected to the second measuring part.

[0037] Preferably, the linkage part includes:

[0038] A rotating shaft rotatably connected to the top surface of the bearing shell through a torsion spring;

[0039] A gear connected to the bottom of the rotating shaft and rotating synchronously with the rotating shaft;

[0040] Wherein, the surrounding part is connected to the rotating shaft;

[0041] Wherein, the gear and the first measuring part are meshed and connected.

[0042] Preferably, the first measuring part includes:

[0043] A conversion part formed with a space for accommodating the gear, and the conversion part and the gear are meshed and connected to convert the rotation of the gear into a linear movement;

[0044] A measuring rod connected to the conversion part, and the measuring rod passes through the bearing shell, the fixed panel and the locking part to contact the tree trunk surface.

[0045] The beneficial effects of the present invention are:

[0046] The tree diameter measuring device provided by the present invention realizes high-precision measurement of the tree diameter through the installation component, the driving component and the measuring component, and at the same time has good adaptability and long-term monitoring ability. Specifically, through the adaptive adjustment function of the surrounding part, it can automatically adjust the perimeter when the tree diameter changes, always closely adhering to the surface of the tree trunk, thereby ensuring the stability and accuracy of the measurement. The axial movement ability of the sliding part enables the tree diameter measuring device to cover different areas of the tree trunk for comprehensive tree diameter measurement. The preliminary change amount of the tree diameter is obtained through the first measurement process, and the position of the minimum tree diameter is locked in the second measurement process, thereby realizing accurate data calibration. In addition, the tree diameter measuring device can be permanently fixed on the surface of the tree trunk without frequent disassembly, and can repeatedly measure the change of the tree diameter at the same position after the tree grows for a period of time, providing continuous and reliable data support for forestry research and management. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a perspective view of the tree diameter measuring device according to an embodiment of the present invention;

[0048] Figure 2 is Figure 1 the front view of the structure shown;

[0049] Figure 3 is a first side view of the tree diameter measuring device according to an embodiment of the present invention;

[0050] Figure 4 is Figure 3 the sectional view of the structure shown along the A-A direction;

[0051] Figure 5 is Figure 4 the partially enlarged schematic view of the structure shown at E;

[0052] Figure 6 is the exploded view of the structure of the tree diameter measuring device according to an embodiment of the present invention (hiding the tree trunk);

[0053] Figure 7 is a perspective view of the second measuring part in the tree diameter measuring device according to an embodiment of the present invention;

[0054] Figure 8 is Figure 7 the front view of the structure shown;

[0055] Figure 9 is Figure 8 the sectional view of the structure shown along the B-B direction;

[0056] Figure 10 is a second side view of the tree diameter measuring device according to an embodiment of the present invention.

[0057] Wherein:

[0058] 1. Installation components; 101. Fixing part; 1011. Fixing panel; 1012. First sliding groove; 1013. Second sliding groove; 1014. Installation groove; 102. Sliding part; 1021. Bearing shell; 1022. Third sliding groove; 1023. Constraint groove; 1024. Constraint surface; 2. Driving components; 201. Surrounding part; 202. Linkage part; 2021. Rotating shaft; 2022. Gear; 3. Measuring components; 301. First measuring part; 3011. Conversion part; 3012. Measuring rod; 302. Second measuring part; 4. Tree trunk; 5. Locking part; 601. First engaging part; 602. Second engaging part. Detailed implementation manners

[0059] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0060] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The "connection" and "coupling" mentioned in the present invention, unless otherwise specifically stated, both include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, 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, and therefore should not be construed as a limitation to the present invention.

[0061] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0062] As Figures 1 to 6 shown, the first embodiment of the present invention provides a tree diameter measuring device, including:

[0063] An installation component 1, configured to be fixed on the surface of the tree trunk 4, having a fixing part 101 and a sliding part 102, and the sliding part 102 can move axially along the tree trunk 4;

[0064] The driving component 2 is disposed on the sliding part 102 and has a surrounding part 201 and a linkage part 202;

[0065] Wherein, one end of the surrounding part 201 is connected to the linkage part 202 in a rewinding manner and surrounds the circumferential surface of the tree trunk 4, and the other end is fixedly connected to the linkage part 202 or the sliding part 102;

[0066] Wherein, the rewinding connection allows the circumference of the surrounding part 201 to be automatically adjusted according to the change of the tree diameter and causes the linkage part 202 to rotate;

[0067] The measuring component 3 is connected to the linkage part 202 and includes a first measuring part 301 and a second measuring part 302. The first measuring part 301 moves towards or away from the surface of the tree trunk 4 as the linkage part 202 rotates, and the second measuring part 302 is sleeved with the first measuring part 301;

[0068] In the first measurement process, the first measuring part 301 is controlled by the rotation of the linkage part 202 and moves towards or away from the surface of the tree trunk 4. The second measuring part 302 only displaces relative to the first measuring part 301 when the first measuring part 301 moves towards the surface of the tree trunk 4 and forms a displacement amount;

[0069] And, in the second measurement process, the second measuring part 302 maintains the displacement amount in the first measurement process, follows the first measuring part 301 to move towards or away from the surface of the tree trunk 4, and is locked when moving towards the surface of the tree trunk 4 to this displacement amount.

[0070] In this embodiment, the main function of the installation component 1 is to fix the entire tree diameter measuring device on the surface of the tree trunk 4. Among them, the fixing part 101 is fixed on the surface of the tree trunk 4 by bolts to ensure the stability of the entire tree diameter measuring device. The sliding part 102 enables the measuring component 3 to move along the axial direction of the tree trunk 4 to ensure that the tree diameter is comprehensively measured in the area covered by the fixing part 101.

[0071] The main function of the driving component 2 is to drive the measuring component 3 to perform accurate tree diameter measurement on the surface of the tree trunk 4 through the adaptive adjustment of the surrounding part 201. The surrounding part 201, such as a steel belt, is wound around the surface of the tree trunk 4, and through the cooperation with the sliding part 102, the measuring component 3 can flexibly adapt to the change of the tree diameter. When the sliding part 102 drives the measuring component 3 for positioning and measurement, the surrounding part 201 automatically adjusts its circumference according to the thickness change of the tree diameter. When the tree diameter increases or decreases, the linkage part 202 drives the steel belt to wind or release, so as to adjust the position of the measuring component 3. Specifically, when the steel belt winds up, the rotation of the linkage part 202 drives the measuring component 3 to move towards the surface of the tree trunk 4, ensuring that the measuring part 301 can accurately contact the surface of the tree trunk 4; when the steel belt is released, the reverse rotation of the linkage part 202 drives the measuring component 3 to move away from the surface of the tree trunk 4, ensuring the flexibility and accuracy of the measurement.

[0072] The main function of the measuring component 3 is to perform accurate measurement of the tree diameter. Specifically, during the measurement process, the measuring component 3 completes the tree diameter measurement task through the cooperation of the first measuring part 301 and the second measuring part 302. As above, when the steel belt winds up, the first measuring part 301 is driven to move towards the surface of the tree trunk 4 and finally contacts the surface of the tree trunk 4. This can be understood as that within the sliding stroke of the sliding part 102, when the tree diameter decreases due to the thickness change, the first measuring part 301 will automatically move closer to the tree trunk 4 to adapt to the change of the tree diameter. On the contrary, when the tree diameter increases due to the thickness change, the first measuring part 301 and the second measuring part 302 move away from the tree trunk 4 synchronously.

[0073] During the process of the first measuring part 301 sliding along the axial direction of the tree trunk 4, the change of the steel belt winding reflects the decrease of the tree diameter. When the steel belt winds up, it indicates that the tree diameter is decreasing. At this time, the first measuring part 301 will move towards the surface of the tree trunk 4. During this process, the displacement of the second measuring part 302 only occurs when the first measuring part 301 moves towards the tree trunk surface, that is, the above-mentioned action of winding up the steel belt triggers the displacement of the second measuring part 302 relative to the first measuring part 301. Specifically, as the first measuring part 301 moves towards the tree trunk surface, the displacement of the second measuring part 302 relative to the first measuring part 301 will change synchronously, so as to directly reflect the decrease amount of the tree diameter. At this time, the maximum displacement amount of the second measuring part 302 corresponds to the state where the first measuring part 301 is positioned at the minimum tree diameter position. This stage is defined as the first measurement process, and its main purpose is to initially obtain the change amount of the tree diameter and form a preliminary measurement result of the tree diameter change.

[0074] Then, after the first measurement process is completed, the sliding part 102 will slide again along the axial direction of the tree trunk 4. At this time, the second measurement part 302 maintains the displacement amount formed during the first measurement process unchanged. It should be noted that the displacement amount involved in the second measurement process is the same as the displacement amount in the first measurement process, that is, the second measurement part 302 only undergoes displacement relative to the first measurement part 301 when the first measurement part 301 moves towards the surface of the tree trunk 4, and the formed displacement amount is consistent.

[0075] Different from the first measurement process, at this stage, it is positioned as the second measurement process, and the first measurement part 301 and the second measurement part 302 will move synchronously towards or away from the surface of the tree trunk 4. The purpose of this synchronous movement is to ensure that the measurement component 3 can adjust its position according to the size of the tree diameter, while ensuring that the relative position relationship between the first measurement part 301 and the second measurement part 302 does not change. When the second measurement part 302 is locked at a certain position, its locked position represents that the displacement amount of the second measurement part 302 relative to the first measurement part 301 at this time still remains the value recorded during the first measurement process. This position at this time is the minimum value position of the tree diameter.

[0076] Thus, the measurement component 3 can automatically lock the minimum value of the tree diameter during the process of the sliding part 102 moving along the axial direction of the tree trunk 4, thereby achieving more accurate and comprehensive measurement.

[0077] It should be noted that during the process of the sliding part 102 sliding along the axial direction of the tree trunk 4, the surrounding part 201 will not slide axially synchronously with the sliding part 102. The surrounding part 201 always clings to the surface of the tree trunk 4 to ensure that the surrounding part 201 can continuously exert a wrapping effect on the circumferential direction of the tree trunk 4 during the measurement process, thereby realizing stable measurement of the tree diameter.

[0078] At the same time, as Figure 10 shown, the local circumferential wall surface of the surrounding part 201 far from the sliding part 102 (referring to the local circumferential wall surface far from the sliding part 102) remains stationary and does not change its position with the movement of the sliding part 102. This makes the surrounding part 201 form a fixed surrounding structure centered on the tree trunk 4 as a whole, while the sliding part 102 drives the surrounding part 201 to generate a certain inclination angle in the circumferential direction through its own axial sliding, that is, a certain included angle is formed between the sliding part 102 and the surrounding part 201. And the size of this included angle will change with the axial sliding of the sliding part 102.

[0079] In addition, when the measurement component 3 successfully locates the minimum position of the tree diameter, the tree diameter can be measured at this position. Through the precise positioning of the measurement component 3, it can be ensured that the measured tree diameter data is the minimum value on the current cross-section of the tree trunk 4, thereby providing reliable measurement results for forestry work.

[0080] Meanwhile, after the tree diameter measuring device finishes the measurement, it does not need to be removed from the surface of the tree trunk 4, but can be fixed on the tree trunk 4 for a long time. As the tree grows, the tree diameter will gradually change, and the tree diameter measuring device can always fit the surface of the tree trunk 4 through the adaptive adjustment function of its surrounding part 201. This allows the tree diameter measuring device to perform tree diameter measurement again based on the same position after the tree has grown for a period of time, thereby ensuring the continuity and comparability of the measurement data.

[0081] As Figure 3 , Figure 5 and Figure 6 shown, the second embodiment of the present invention provides a tree diameter measuring device, and on the basis of the above embodiment, the fixing part 101 includes:

[0082] A fixing panel 1011 configured to be fixed to the surface of the tree trunk 4 by bolts;

[0083] A first sliding groove 1012 opened on the fixing panel 1011 and configured to form a sliding connection with the sliding part 102;

[0084] A second sliding groove 1013 opened on the fixing panel 1011 and configured to allow the first measuring part 301 to pass through.

[0085] In this embodiment, the main function of the fixing panel 1011 is to firmly fix the tree diameter measuring device on the surface of the tree trunk 4 to ensure that the tree diameter measuring device does not shift due to external forces during the measurement process. The fixing panel 1011 is connected to the surface of the tree trunk 4 by bolts, and this rigid connection method can ensure the stability of the tree diameter measuring device during use. Even if it is fixed on the tree trunk 4 for a long time, the installation reliability of the tree diameter measuring device can still be fully guaranteed.

[0086] The first sliding groove 1012 is provided on the fixing panel 1011 for forming a sliding connection with the sliding part 102. The first sliding groove 1012 enables the sliding part 102 to slide freely along the axial direction of the tree trunk 4, thereby providing a larger movement range for the measuring assembly 3 to achieve a more comprehensive tree diameter measurement.

[0087] The second sliding groove 1013 is also provided on the fixing panel 1011, and its function is to provide a channel for the movement of the first measuring part 301. Through the second sliding groove 1013, the first measuring part 301 can move and be positioned precisely along the surface of the tree trunk 4. Especially when the first measuring part 301 moves towards the surface of the tree trunk 4, it ensures that it can be in close contact with the surface of the tree trunk 4 to guarantee the accuracy of the measurement result.

[0088] In summary, through the combination of the fixing panel 1011, the first sliding groove 1012, and the second sliding groove 1013, the fixing part 101 not only ensures the firmness of the tree diameter measuring device but also provides flexibility support for the sliding part 102 and the measuring component 3. Moreover, it enables the tree diameter measuring device to achieve stable and accurate measurements on tree trunks 4 with different diameters and shapes and has the adaptability for long-term fixation and repeated measurements.

[0089] As Figure 2 , Figure 5 and Figure 6 shown, the third embodiment of the present invention provides a tree diameter measuring device. On the basis of the above embodiments, the sliding part 102 includes:

[0090] A bearing shell 1021, which is slidably connected to the first sliding groove 1012;

[0091] A third sliding groove 1022 is opened on the bottom surface of the bearing shell 1021 for the sliding movement of the first measuring part 301;

[0092] A constraint groove 1023 is opened on the bottom surface of the bearing shell 1021 for the sliding movement of the second measuring part 302;

[0093] Among them, the inner wall surface of the constraint groove 1023 close to the surface of the tree trunk 4 is a constraint surface 1024, which provides a stop for the second measuring part 302;

[0094] In addition, the first measuring part 301 and the second measuring part 302 are located inside the bearing shell 1021.

[0095] In this embodiment, the bearing shell 1021 is the core component of the sliding part 102 and is slidably connected to the first sliding groove 1012 on the fixing part 101. The function of the bearing shell 1021 is to provide stable installation and sliding support for the measuring component 3, enabling it to move freely along the axial direction of the tree trunk 4 to complete measurements in different tree diameter areas. Through the sliding connection with the first sliding groove 1012, the bearing shell 1021 ensures the movement flexibility of the sliding part 102 while maintaining structural stability.

[0096] The third sliding groove 1022 is opened on the bottom surface of the bearing shell 1021 to guide the sliding movement of the first measuring part 301. Through the precise guidance of the third sliding groove 1022, the first measuring part 301 can accurately move towards or away from the surface of the tree trunk 4 during the operation of the tree diameter measuring device, thereby ensuring that the movement trajectory of the first measuring part 301 is stable during the measurement process and does not deviate from the predetermined position.

[0097] The constraint groove 1023 is also formed on the bottom surface of the bearing housing 1021, and its function is to provide a sliding movement channel for the second measuring part 302. Different from the third sliding groove 1022, the constraint groove 1023 is close to the surface of the tree trunk 4, and the inner wall surface of the groove is defined as the constraint surface 1024. The constraint surface 1024 restricts and blocks the movement of the second measuring part 302 through its structural characteristics, so as to ensure that during the first measurement process, the second measuring part 302 can have a relative displacement with respect to the first measuring part 301 and calibrate the displacement amount.

[0098] Through the sliding part 102, the present embodiment realizes the precise guiding and motion control of the measuring assembly 3, and at the same time enhances the overall structural stability and anti-interference ability of the tree diameter measuring device. The combination of the bearing housing 1021 and the internal sliding groove provides a clear path and constraint for the movement of the measuring assembly 3, ensuring the accuracy of the measurement data and the long-term reliability of the tree diameter measuring device.

[0099] The fourth embodiment of the present invention provides a tree diameter measuring device, and on the basis of the above embodiment, the first measuring part 301 and the second measuring part 302 are frictionally sleeved;

[0100] Moreover, the frictional sleeve means that when the second measuring part 302 is subjected to a force that keeps it stationary, the second measuring part 302 has a displacement relative to the first measuring part 301; and when the second measuring part 302 is not subjected to an external force, the second measuring part 302 moves synchronously with the first measuring part 301;

[0101] Among them, the force that keeps the second measuring part 302 stationary is the blocking force provided by the constraint surface 1024.

[0102] In this embodiment, the first measuring part 301 and the second measuring part 302 form a cooperative working relationship through the frictional sleeve method, ensuring the flexibility and accuracy of the measuring assembly 3 in different measurement stages.

[0103] Specifically, the frictional sleeve relationship between the first measuring part 301 and the second measuring part 302 allows the two to achieve relative sliding or synchronous movement under specific conditions. When the second measuring part 302 is kept stationary by an external force, the first measuring part 301 can displace relative to it; when the second measuring part 302 is not subjected to an external force, the second measuring part 302 moves synchronously with the first measuring part 301. This frictional sleeve provides a flexible motion mode, meeting the requirements of different measurement stages.

[0104] During the first measurement process, the second measuring part 302 is restricted by the stopping force provided by the restraining surface 1024 of the restraining groove 1023 and remains stationary. At this time, the first measuring part 301 moves towards the surface of the tree trunk 4 under the drive of the linkage part 202, and the second measuring part 302 displaces relative to the first measuring part 301 due to the frictional socketing relationship. The displacement value of this relative displacement directly calibrates the reduction amount of the tree diameter and provides reference data for the second measurement process.

[0105] During the second measurement process, the second measuring part 302 maintains the displacement amount in the first measurement process and is no longer restricted by the acting force of the restraining surface 1024, and starts to move synchronously with the first measuring part 301. This synchronous movement mechanism ensures that in subsequent tree diameter measurements, the measuring assembly 3 can make coordinated adjustments according to the change of the tree diameter (which means the second measuring part 302 is locked), while retaining the previously measured minimum tree diameter data.

[0106] As the key external force source for the stationary state of the second measuring part 302, the stopping force provided by the restraining surface 1024 provides precise mechanical restraint conditions for the relative displacement in the first measurement process by restricting the free movement of the second measuring part 302. This effect not only ensures the accuracy of the displacement data of the second measuring part 302, but also further improves the overall reliability of the measuring system.

[0107] In summary, through the frictional socketing of the first measuring part 301 and the second measuring part 302, the present embodiment realizes the precise calibration of the relative displacement in the first measurement process and ensures the coordinated cooperation of the synchronous displacement in the second measurement process. Through the stopping force provided by the restraining surface 1024, the combination of static and synchronous movement is skillfully achieved, providing technical support for the efficient operation of the measuring assembly 3 and the accuracy of the measurement results.

[0108] As Figure 5 and Figure 6 shown, the fifth embodiment of the present invention provides a tree diameter measuring device, and on the basis of the above embodiments, includes:

[0109] A locking part 5, which is assembled to the end surface of the fixed panel 1011 facing the surface of the tree trunk 4 during the second measurement process;

[0110] Wherein, the locking part 5 is configured to provide a magnetic suction force for locking the current position of the second measuring part 302 when the second measuring part 302 contacts the restraining surface 1024.

[0111] In this embodiment, the locking part 5 is assembled on the end face of the fixed panel 1011 facing the surface of the tree trunk 4. Its main function is to fix (lock) the position of the second measuring part 302 by magnetic suction when the second measuring part 302 contacts the constraint surface 1024 during the second measurement process. This locking effect ensures that the second measuring part 302 can be directly locked at the position of the minimum tree diameter, thereby improving the accuracy of the measurement result.

[0112] The locking part 5 uses magnetic suction as the fixing means. When the second measuring part 302 moves along the sliding path to the position where it contacts the constraint surface 1024, the locking part 5 applies an adsorption force to the second measuring part 302 through magnetic suction and firmly locks it in the current position. At this time, the displacement of the second measuring part 302 represents the minimum value of the tree diameter, and this position becomes the reference benchmark of the measuring assembly 3.

[0113] During the first measurement process, the second measuring part 302 generates relative displacement by cooperating with the constraint surface 1024 and calibrates the change value of the tree diameter. During the second measurement process, the addition of the locking part 5 ensures that the second measuring part 302 can accurately record the displacement during the first measurement process and prompts it to be directly locked at the position of the minimum tree diameter.

[0114] In summary, through the configuration of the locking part 5 in this embodiment, the high-precision locking function during the second measurement process is achieved, ensuring the stability of the measuring assembly 3 at the key position and the reliability of the tree diameter measurement result.

[0115] As Figure 6 shown, the sixth embodiment of the present invention provides a tree diameter measuring device. On the basis of the above embodiment, the fixed panel 1011 has an installation groove 1014, and the locking part 5 is assembled into the installation groove 1014.

[0116] In this embodiment, the installation groove 1014 is provided on the fixed panel 1011 to ensure that the locking part 5 can be firmly embedded in the installation groove 1014, avoiding loosening or displacement of the locking part 5 due to external force or vibration during the operation of the tree diameter measuring device, so as to ensure that the locking part 5 can always accurately lock the second measuring part 302.

[0117] The existence of the installation groove 1014 ensures the integral connection between the locking part 5 and the fixed panel 1011, making the installation position of the locking part 5 fixed and the structure more stable.

[0118] It should be noted that the locking part 5 has a structure of a magnetic plate to be assembled into the installation groove 1014. Moreover, in order to maintain its stability, it can be connected to the fixed panel 1011 by means of bolts or the like. In addition, a groove for the first measuring part 301 to pass through is formed along the vertical center line of the locking part 5.

[0119] As Figures 6 to 9As shown in the figure, the seventh embodiment of the present invention provides a tree diameter measuring device, and on the basis of the above embodiment, it includes:

[0120] Engaging part one 601 and engaging part two 602;

[0121] Engaging part one 601 is arranged on the locking part 5;

[0122] Engaging part two 602 is arranged on the measuring part two 302;

[0123] Moreover, when the measuring part two 302 is locked, engaging part one 601 and engaging part two 602 are coupled.

[0124] In this embodiment, engaging part one 601 is arranged on the locking part 5, and its function is to provide auxiliary positioning and fixing support for the measuring part two 302 during the locking process.

[0125] Engaging part two 602 is arranged on the measuring part two 302. When the measuring part two 302 is locked, engaging part two 602 cooperates with engaging part one 601 to achieve the coupling between components. In the state where the measuring part two 302 is locked, engaging part one 601 and engaging part two 602 form a more stable connection through coupling. This connection can enhance the fixing effect of the locking part 5 on the measuring part two 302, prevent the measuring part two 302 from generating displacement due to external forces after being locked, and thus improve the reliability of the measurement data. When the measuring part two 302 moves to the minimum tree diameter position and is fixed by the locking part 5, the coupling effect of engaging part one 601 and engaging part two 602 firmly fixes the measuring part two 302 at the optimal position, that is, the minimum tree diameter position, forming a multiple protection mechanism. This enables the tree diameter measuring device to adapt to the environmental conditions of being fixed on the tree trunk 4 for a long time and ensures that subsequent repeated measurements can still be based on the same position.

[0126] In summary, in this embodiment, through engaging part one 601 and engaging part two 602, more stable and accurate guarantee is provided for the locking of the measuring part two 302, the anti-interference ability and reliability of the tree diameter measuring device during the measurement process are enhanced, and at the same time, higher precision support is provided for the tree diameter measurement.

[0127] In a specific embodiment, engaging part one 601 can be multiple through holes, which are evenly arranged along the length direction of the locking part 5. Engaging part two 602 is a spring rod to form a coupling with the through holes.

[0128] Such as Figure 5 and Figure 6 As shown in the figure, the eighth embodiment of the present invention provides a tree diameter measuring device, and on the basis of the above embodiment, the linkage part 202 includes:

[0129] A rotating shaft 2021, which is rotationally connected to the top surface of the bearing housing 1021 through a torsion spring;

[0130] The gear 2022 is connected to the bottom of the rotating shaft 2021 and rotates synchronously with the rotating shaft 2021;

[0131] Among them, the surrounding part 201 is connected to the rotating shaft 2021;

[0132] Among them, the gear 2022 and the measuring part 301 are meshed and connected.

[0133] In this embodiment, the rotating shaft 2021 is rotatably connected to the top surface of the bearing housing 1021 through a torsion spring. Its function is to serve as the movement axis of the surrounding part 201 and realize the automatic adjustment of the perimeter of the surrounding part 201 on the surface of the tree trunk 4. The introduction of the torsion spring provides an elastic driving function, enabling the rotating shaft 2021 to automatically adjust the rotation direction and angle according to the force condition of the surrounding part 201, so as to meet the dynamic adaptation requirements of the surrounding part 201 when the tree diameter changes. The gear 2022 is arranged at the bottom of the rotating shaft 2021 and rotates synchronously with the rotating shaft 2021. The main function of the gear 2022 is to convert the rotational motion of the rotating shaft 2021 into the linear motion of the measuring part 301, and control the moving direction and amplitude of the measuring part 301 through the rotation of the gear 2022. The gear 2022 and the measuring part 301 are meshed and connected to ensure the accuracy of motion transmission and the synchronization of response, so as to realize the precise movement of the measuring part 301 towards or away from the tree trunk 4 on the surface of the tree trunk 4.

[0134] The surrounding part 201 is directly connected to the rotating shaft 2021. When the surrounding part 201 is wound or released according to the change of the tree diameter, this change is transmitted to the gear 2022 through the rotation of the rotating shaft 2021. The rotation of the rotating shaft 2021 further drives the gear 2022 to rotate, so as to accurately control the position adjustment of the measuring part 301 through the meshing relationship between the gear 2022 and the measuring part 301.

[0135] During the tree diameter measurement process, when the surrounding part 201 is affected by the change of the tree diameter and generates a winding or releasing action, the rotating shaft 2021 will rotate accordingly, and the measuring part 301 is driven by the gear 2022 to approach or move away from the surface of the tree trunk 4. This linkage mechanism ensures that the measuring part 301 can respond to the dynamic change of the tree diameter in real time, and finally realizes the accurate measurement of the tree diameter.

[0136] In summary, through the linkage design of the rotating shaft 2021 and the gear 2022 in this embodiment, an efficient and accurate motion control mechanism is provided for the tree diameter measuring device. The combination of the dynamic adjustment of the surrounding part 201, the elastic driving of the rotating shaft 2021 and the precise transmission of the gear 2022 constitutes a stable and flexible linkage system, which provides an important support for the tree diameter measuring function of the tree diameter measuring device.

[0137] Such as Figure 5 and Figure 6As shown, the ninth embodiment of the present invention provides a tree diameter measuring device. On the basis of the above embodiments, the measuring unit 301 includes:

[0138] A conversion member 3011, which forms a space for accommodating the gear 2022, and the conversion member 3011 is meshed with the gear 2022 to convert the rotation of the gear 2022 into a linear movement;

[0139] A measuring rod 3012, which is connected to the conversion member 3011, and the measuring rod 3012 passes through the bearing housing 1021, the fixed panel 1011 and the locking portion 5 to contact the surface of the tree trunk 4.

[0140] In this embodiment, the conversion member 3011 is arranged inside the measuring unit 301 and forms a space for accommodating the gear 2022. It is mainly meshed with the gear 2022 to convert the rotational movement of the gear 2022 into the linear movement of the measuring rod 3012. The conversion member 3011 ensures that the movement generated by the rotation of the gear 2022 can be accurately transmitted and drives the measuring rod 3012 in the form of a linear movement to achieve the accurate displacement of the measuring unit 301 along the surface of the tree trunk 4 towards or away from the tree trunk 4. The measuring rod 3012 is connected to the conversion member 3011 and moves through the linear drive of the conversion member 3011, passes through the bearing housing 1021, the fixed panel 1011 and the locking portion 5, and finally contacts the surface of the tree trunk 4. The main function of the measuring rod 3012 is to directly participate in the measurement of the tree diameter and record the minimum value of the tree diameter or the dynamic change data by contacting the surface of the tree trunk 4.

[0141] During the measurement process, the rotational movement of the gear 2022 is transmitted through meshing with the conversion member 3011 to drive the measuring rod 3012 to move along the surface of the tree trunk 4. When the measuring rod 3012 contacts the surface of the tree trunk 4, its position reflects the current tree diameter size.

[0142] The function of the conversion member 3011 is to achieve an efficient conversion from rotational movement to linear movement, so that the measuring rod 3012 can flexibly adjust its position in different measurement stages (such as the first measurement process or the second measurement process), thereby ensuring the accurate recording of measurement data.

[0143] In summary, in this embodiment, by adding the conversion member 3011 and the measuring rod 3012 to the measuring unit 301, the measuring assembly 3 can transmit and convert the movement more efficiently, thereby achieving the accurate measurement of the tree diameter.

[0144] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0145] The above embodiments only illustrate several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. A tree diameter measurement device, characterized in that, Comprising: An installation component configured to be fixed on the surface of the tree trunk, having a fixing part and a sliding part, and the sliding part can move axially along the tree trunk; A driving component arranged on the sliding part, having a surrounding part and a linkage part; Wherein, one end of the surrounding part is wound and connected to the linkage part, surrounds to the circumferential surface of the tree trunk, and the other end is fixedly connected to the linkage part or the sliding part; Wherein, the winding connection allows the perimeter of the surrounding part to be automatically adjusted according to the change of the tree diameter, and prompts the linkage part to rotate; A measuring component connected to the linkage part, including a first measuring part and a second measuring part. The first measuring part moves towards or away from the surface of the tree trunk as the linkage part rotates, and the second measuring part is frictionally sleeved with the first measuring part; In the first measurement process, the first measuring part is controlled by the rotation of the linkage part and moves towards or away from the surface of the tree trunk. The second measuring part only displaces relative to the first measuring part when the first measuring part moves towards the surface of the tree trunk, and forms a displacement amount; And, in the second measurement process, the second measuring part maintains the displacement amount in the first measurement process, follows the first measuring part to move towards or away from the surface of the tree trunk, and is locked when moving towards the surface of the tree trunk to this displacement amount; The fixing part includes: A fixing panel configured to be fixed on the surface of the tree trunk by bolts; A first sliding groove opened on the fixing panel and configured to form a sliding connection with the sliding part; A second sliding groove opened on the fixing panel and configured to allow the first measuring part to pass through; The sliding part includes: A bearing shell slidably connected to the first sliding groove; A third sliding groove opened on the bottom surface of the bearing shell for the sliding movement of the first measuring part; A constraint groove opened on the bottom surface of the bearing shell for the sliding movement of the second measuring part; Wherein, the inner wall surface of the constraint groove close to the surface of the tree trunk is a constraint surface and provides a stop for the second measuring part; And, the first measuring part and the second measuring part are located inside the bearing shell; The linkage part includes: A rotating shaft rotatably connected to the top surface of the bearing shell through a torsion spring; A gear connected to the bottom of the rotating shaft and rotating synchronously with the rotating shaft; Wherein, the surrounding part is connected to the rotating shaft; Wherein, the gear is meshed with the first measuring part; The first measuring part includes: A conversion part formed with a space for accommodating the gear, and the conversion part is meshed with the gear to convert the rotation of the gear into a linear movement; A measuring rod connected to the conversion part, and the measuring rod passes through the bearing shell and the fixing panel to contact the surface of the tree trunk.

2. The tree diameter measurement device according to claim 1, wherein The first measuring part and the second measuring part are frictionally sleeved; And, the frictional sleeve means that when the second measuring part is subjected to a force to keep it stationary, the second measuring part displaces relative to the first measuring part; and when the second measuring part is not subjected to an external force, the second measuring part displaces synchronously with the first measuring part; Wherein, the force for keeping the second measuring part stationary is the stop force provided by the constraint surface.

3. The tree diameter measurement device according to claim 2, characterized in that, Comprising: The locking part is assembled to the end face of the fixed panel facing the tree trunk surface during the second measurement process; Wherein, the locking part is configured to provide a magnetic suction force for locking the current position of the second measurement part when the second measurement part contacts the constraint surface.

4. The tree diameter measurement device according to claim 3, characterized in that, The fixed panel has a mounting groove, and the locking part is assembled into the mounting groove.

5. The tree diameter measuring device according to claim 4, characterized in that, Comprising: A first engaging part and a second engaging part; The first engaging part is arranged on the locking part; The second engaging part is arranged on the second measurement part; And when the second measurement part is locked, the first engaging part and the second engaging part are coupled.

6. The tree diameter measurement device according to claim 5, characterized in that The second engaging part is elastically connected to the second measurement part.

Images