Forestry tree diameter at breast height surveying and mapping device

Abstract

The utility model relates to the technical field of diameter-at-breast-height surveying and mapping, and discloses a forestry tree diameter-at-breast-height surveying and mapping device which comprises a strip-shaped plate, a guide rail sliding block pair, a bending plate, a motor, a gear, a rack, a grating ruler sensor, a movable claw, a fixed claw and an elastic piece. The elastic piece comprises a spring. In the using process, the motor is controlled to work, and the bending plate can move in the length direction of the strip-shaped plate under the guide supporting effect of the guide rail sliding block pair and the tooth meshing effect of the gear and the rack. The tree supporting rod can be clamped between the fixed claw and the movable claw through the elastic piece. Afterwards, the grating ruler sensor can detect the moving distance of the movable claw, and then measurement of the diameter at breast height of the tree is completed. After the movable claw abuts against the tree supporting rod, due to the fact that the spring can be compressed under the action of external force, even if the rotating end of the motor rotates continuously, the bending plate can still move in the length direction of the strip-shaped plate, and therefore the situation that the motor is damaged due to suffocation is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of diameter at breast height (DBH) measurement, and for example, to a device for measuring the DBH of forestry trees. Background Art

[0002] Related technology (Announcement No.: CN220524848U) discloses a non-close-type tree diameter measuring device, including a shell. An extension rod is slidably provided on the inner wall of the shell, a measuring groove is provided on one side of the front end face of the extension rod, and a sliding plate is slidably provided on the inner wall of the measuring groove. An inner measuring clip is hingedly provided on one side of the front end face of the sliding plate, and a plurality of gear blocks are fixedly provided on the rear end face of the sliding plate. A small motor is fixedly provided on the middle inner bottom face of the extension rod, and a gear is fixedly provided on the output end of the small motor, and the gear is meshed with the plurality of gear blocks. An outer measuring clip is provided on one end face of the extension rod, and a soft pad is embedded in the end face on the opposite side of the outer measuring clip and the inner measuring clip.

[0003] In the process of implementing the above embodiments, it was found that there are at least the following problems in the related art:

[0004] This non-contact tree diameter measuring device converts rotational motion into linear motion through gears and tooth blocks. The inner measuring bar, driven by a small motor, moves in conjunction with the outer measuring bar to complete the measurement. However, the soft pad deforms upon contact with the tree's support, affecting the accuracy of the measurement. Using a method where the inner and outer measuring bars directly contact the tree's surface can easily cause the motor to stall and become damaged.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiments of the present disclosure provide a forestry tree diameter at breast height measurement device to solve the problems raised in the above-mentioned background technology.

[0008] In some embodiments, the forestry tree diameter at breast height measuring device includes: a strip plate; a guide rail slider pair, installed on the strip plate along the length direction of the strip plate; a bending plate, installed on the moving end of the guide rail slider pair; a motor, installed on the bending plate; a gear, installed on the rotating end of the motor; a rack, installed on the strip plate along the length direction of the strip plate and meshing with the gear; a grating scale sensor, installed on the strip plate along the length direction of the strip plate; a movable claw, installed on the detection end of the grating scale sensor; a fixed claw, installed on the strip plate and facing the movable claw; an elastic member, installed between the movable claw and the bending plate, the elastic member including a spring; wherein, when the tree pole is clamped between the fixed claw and the movable claw, the spring is in a compressed state.

[0009] Optionally, the guide rail slider pair includes: a pad, mounted on the strip plate; a guide rail, mounted on the pad along the length direction of the strip plate; a slider, slidably mounted on the guide rail, and the bent plate is mounted on the slider.

[0010] Optionally, the guide rail slider pair further includes: a limiting piece installed at the end of the guide rail.

[0011] Optionally, the elastic member includes: a support mounted on the bending plate; a spline shaft slidably passed through the support along the length direction of the strip plate; a fixed ring mounted on one end of the spline shaft, and the movable claw mounted on the other end of the spline shaft; wherein the spring is sleeved on the spline shaft and is located between the movable claw and the support.

[0012] Optionally, the elastic member further includes: an annular force sensor, which is sleeved on the spline shaft and located between the spring and the support.

[0013] Optionally, the elastic member further includes: a first metal gasket, which is sleeved on the spline shaft and located between the spring and the annular force sensor.

[0014] Optionally, the elastic member further includes: a spline outer cylinder, which is slidably mounted on the spline shaft and installed on the support.

[0015] Optionally, the elastic member further includes: a second metal gasket, which is sleeved on the spline shaft and located between the spring and the movable claw.

[0016] Optionally, it further includes: a handle installed on the strip plate.

[0017] The present disclosure provides a device for measuring and mapping the diameter at breast height of forestry trees, which can achieve the following technical effects:

[0018] A forestry tree diameter at breast height measuring device provided by an embodiment of the present disclosure includes a strip board, a guide rail slider pair, a bent board, a motor, a gear, a rack, a grating scale sensor, a movable claw, a fixed claw and an elastic member. The guide rail slider pair is installed on the strip board along the length direction of the strip board and is used for guiding and supporting. The bent board is installed on the moving end of the guide rail slider pair and moves along the length direction of the bent board under the guiding and supporting of the guide rail slider pair. The bent board is in a U-shaped and surrounds the strip board. The motor is installed on the bent board and is used to provide driving force to realize the rotational motion function. The gear is installed on the rotating end of the motor and rotates under the drive of the motor. The rack is installed on the strip board along the length direction of the strip board and meshes with the gear. The gear and the rack together convert the rotational motion into a linear motion. Along the thickness direction of the strip board, the rack and the guide rail slider pair are located on the same side of the strip board to improve the compactness among the components of the device. The grating scale sensor is installed on the strip board along the length direction of the strip board and is used to detect the moving distance. Along the thickness direction of the strip board, the grating scale sensor and the guide rail slider pair are located on both sides of the strip board to avoid interference when the detection end of the grating scale sensor and the moving end of the guide rail slider pair move. The movable claw is installed on the detection end of the grating scale sensor and is used to drive the detection end of the grating scale sensor to move and abut against one side of the tree branch. The fixed claw is installed on the strip board and is opposite to the movable claw and is used to abut against the other side of the tree branch. The elastic member is installed between the movable claw and the bent board. The elastic member includes a spring, and the spring is used to generate elastic deformation. Among them, when the tree branch is clamped between the fixed claw and the movable claw, the spring is in a compressed state.

[0019] For a forestry tree diameter at breast height measuring device provided by an embodiment of the present disclosure, when the motor works, under the guiding and supporting of the guide rail slider pair and the meshing between the gear and the rack, the bent board can move along the length direction of the strip board. Through the elastic member, the movable claw can be driven to move, and finally the tree branch can be clamped between the fixed claw and the movable claw. At the same time, during the movement of the movable claw, the detection end of the grating scale sensor will move accordingly, so as to detect the moving distance of the movable claw, and then complete the measurement of the tree diameter at breast height. After the movable claw abuts against the tree branch, since the spring will be compressed under the action of external force, even if the rotating end of the motor continues to rotate, the bent board can still move along the length direction of the strip board, thus avoiding damage to the motor due to stalling.

[0020] The above general description and the following description are only exemplary and explanatory and are not used to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are regarded as similar elements. The drawings do not constitute a proportional limitation, and among them:

[0022] Figure 1 This is a schematic cross-sectional view of a device for measuring and mapping the diameter at breast height of forestry trees provided by an embodiment of the present disclosure;

[0023] Figure 2 This is a schematic diagram of the main structure of a forestry tree diameter at breast height measuring device provided by an embodiment of the present disclosure;

[0024] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 4 yes Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0026] Reference numerals:

[0027] 10: Strip plate; 20: Guide rail and slider pair; 21: Spacer; 22: Guide rail; 23: Slider; 30: Bending plate; 40: Motor; 50: Gear; 60: Rack; 70: Grating scale sensor; 80: Movable claw; 90: Fixed claw; 100: Elastic part; 101: Spring; 102: Support; 103: Spline shaft; 104: Fixed ring; 105: Annular force sensor; 106: Spline outer cylinder. DETAILED DESCRIPTION

[0028] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0029] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0030] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0031] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0032] Unless otherwise stated, the term "plurality" means two or more.

[0033] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0034] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0036] Combine Figures 1 to 4As shown in the figure, an embodiment of the present disclosure provides a forestry tree diameter measurement device, which includes a strip board 10, a guide rail slider pair 20, a bent plate 30, a motor 40, a gear 50, a rack 60, a grating scale sensor 70, a movable claw 80, a fixed claw 90, and an elastic member 100. The guide rail slider pair 20 is installed on the strip board 10 along the length direction of the strip board 10 and is used for guiding and supporting. The bent plate 30 is installed on the movable end of the guide rail slider pair 20 and moves along the length direction of the bent plate 30 under the guiding and supporting action of the guide rail slider pair 20. The bent plate 30 is in a U-shaped configuration and surrounds the strip board 10. The motor 40 is installed on the bent plate 30 and is used to provide driving force to achieve the rotation motion function. The gear 50 is installed on the rotating end of the motor 40 and rotates under the drive of the motor 40. The rack 60 is installed on the strip board 10 along the length direction of the strip board and meshes with the gear 50. The gear 50 and the rack 60 together convert the rotation motion into a linear motion. Along the thickness direction of the strip board 10, the rack 60 and the guide rail slider pair 20 are located on the same side of the strip board 10 to improve the compactness between the components of the device. The grating scale sensor 70 is installed on the strip board 10 along the length direction of the strip board 10 and is used to detect the moving distance. Along the thickness direction of the strip board 10, the grating scale sensor 70 and the guide rail slider pair 20 are located on both sides of the strip board 10 to avoid interference when the detection end of the grating scale sensor 70 and the movable end of the guide rail slider pair 20 move. The movable claw 80 is installed on the detection end of the grating scale sensor 70 and is used to drive the detection end of the grating scale sensor 70 to move and抵靠 on one side of the tree branch. The fixed claw 90 is installed on the strip board 10 and is opposite to the movable claw 80 and is used to抵靠 on the other side of the tree branch. The elastic member 100 is installed between the movable claw 80 and the bent plate 30. The elastic member 100 includes a spring 101, and the spring 101 is used to generate elastic deformation. Among them, when the tree branch is clamped between the fixed claw 90 and the movable claw 80, the spring 101 is in a compressed state.

[0037] For a forestry tree diameter measurement device provided by an embodiment of the present disclosure, when the motor 40 is controlled to work, under the guiding and supporting action of the guide rail slider pair 20 and the meshing action between the gear 50 and the rack 60, the bent plate 30 can move along the length direction of the strip board 10. Through the elastic member 100, the movable claw 80 can be driven to move, and finally the tree branch can be clamped between the fixed claw 90 and the movable claw 80. At the same time, during the movement of the movable claw 80, the detection end of the grating scale sensor 70 will move accordingly, so as to detect the moving distance of the movable claw 80, and then complete the tree diameter measurement work. When the movable claw 80抵靠 on the tree branch, since the spring 101 will be compressed under the action of external force, even if the rotating end of the motor 40 continues to rotate, the bent plate 30 can still move along the length direction of the strip board 10, thus avoiding damage to the motor 40 due to stalling.

[0038] Optionally, combined Figures 2 to 3 As shown, the guide rail and slider pair 20 includes a spacer 21, a guide rail 22, and a slider 23. The spacer 21 is mounted on the strip plate 10 to provide support and elevation, allowing for adjustment of the position of the guide rail 22 and slider 23. The guide rail 22 is mounted on the spacer 21 along the length of the strip plate 10, supporting the slidable slider 23. The slider 23 is slidably mounted on the guide rail 22, and the two together serve as a guide and support. A bending plate 30 is mounted on the slider 23 and moves synchronously with it.

[0039] In the disclosed embodiment, the motor 40 is controlled to operate. Under the guidance and support of the guide rail 22 and the slider 23, and the meshing action of the gear 50 and the rack 60, the bending plate 30 can be moved along the length of the strip plate 10. The elastic member 100 then drives the movable claw 80 to move, ultimately clamping the tree pole between the fixed claw 90 and the movable claw 80.

[0040] Optionally, combined Figures 2 to 3 As shown, the guide rail and slider pair 20 further includes a limiting piece. The limiting piece is installed at the end of the guide rail 22.

[0041] In the embodiment of the present disclosure, the guide rail slider pair 20 further includes a limit plate installed at the end of the guide rail 22. The limit plate is used to limit the position to prevent the slider 23 from falling off the guide rail 22 and limit the movement range of the bending plate 30.

[0042] Optionally, combined Figure 1 and Figure 2 As shown, the elastic member 100 includes a support 102, a spline shaft 103 and a fixing ring 104. The support 102 is mounted on the bending plate 30 and is used to support and install the slidable spline shaft 103. The spline shaft 103 is slidably arranged in the support 102 along the length direction of the strip plate 10 and can perform linear motion relative to the support 102. The fixing ring 104 is mounted on one end of the spline shaft 103 and is used to limit the position to prevent the spline shaft 103 from falling out of the support 102. The movable claw 80 is mounted on the other end of the spline shaft 103. Among them, the spring 101 is sleeved on the spline shaft 103 and is located between the movable claw 80 and the support 102.

[0043] In the disclosed embodiment, when the movable claw 80 abuts against the tree support and the rotating end of the motor 40 continues to rotate, the spline shaft 103 slides relative to the support 102, compressing the spring 101. This allows the bending plate 30 to continue to move along the length of the strip plate 10, thereby preventing damage to the motor 40 caused by stalling. Simultaneously, the spline shaft 103 acts as a guide support, allowing the spring 101 to deform only in its compression direction, thereby improving the stability of the movable claw 80. This allows the movable claw 80 to move smoothly, thereby enhancing the accuracy of the measurement results.

[0044] Optionally, combined Figure 1 and Figure 2 As shown, the elastic member 100 further includes an annular load cell 105 . The annular load cell 105 is sleeved on the spline shaft 103 and located between the spring 101 and the support 102 .

[0045] In the disclosed embodiment, the elastic member 100 further includes an annular force sensor 105, which is mounted on the spline shaft 103 and located between the spring 101 and the support 102. The annular force sensor 105 is used to detect the elastic force generated by the deformation of the spring 101. When the elastic force reaches a preset value, the motor 40 automatically stops, thereby further preventing damage to the motor 40 due to stalling and extending the service life of the motor 40.

[0046] Optionally, combined Figure 1 and Figure 2 As shown, the elastic member 100 further includes a first metal washer which is sleeved on the spline shaft 103 and located between the spring 101 and the annular force sensor 105 .

[0047] In the disclosed embodiment, the elastic member 100 further includes a first metal washer mounted on the spline shaft 103 and located between the spring 101 and the annular load cell 105. The first metal washer is used to protect the surface of the annular load cell 105 from being worn and damaged by the spring 101.

[0048] Optionally, combined Figure 1 and Figure 2 As shown, the elastic member 100 further includes a spline outer cylinder 106 . The spline outer cylinder 106 is slidably mounted on the spline shaft 103 and is installed on the support 102 .

[0049] In the disclosed embodiment, the elastic member 100 further includes a spline outer cylinder 106 slidably mounted on the spline shaft 103 and mounted on the support 102. The spline outer cylinder 106 is used to reduce the friction between the spline shaft 103 and the support 102 and improve the sliding precision of the spline shaft 103 relative to the support 102.

[0050] Optionally, combined Figure 1 and Figure 2 As shown, the elastic member 100 further includes a second metal washer which is sleeved on the spline shaft 103 and located between the spring 101 and the movable claw 80 .

[0051] In the disclosed embodiment, the elastic member 100 further includes a second metal washer sleeved on the spline shaft 103 and located between the spring 101 and the movable claw 80. The second metal washer is used to protect the surface of the movable claw 80 from being worn and damaged by the spring 101.

[0052] Optionally, a handle is further included and is mounted on the strip board 10 .

[0053] In the embodiment of the present disclosure, a handle is further included which is mounted on the strip board 10. The handle is used for holding so as to manually operate the entire device to measure the tree diameter at breast height.

[0054] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A forestry tree diameter at breast height measuring device, characterized in that: include: strip board; A guide rail slider pair is installed on the strip plate along the length direction of the strip plate; A bending plate, mounted on the moving end of the guide rail slider pair; a motor, mounted on the bending plate; a gear mounted on the rotating end of the motor; a rack, mounted on the strip plate along the length direction of the strip plate and meshing with the gear; A grating ruler sensor is installed on the strip plate along the length direction of the strip plate; A movable claw is installed at the detection end of the grating ruler sensor; A fixed claw is mounted on the strip plate and is directly opposite to the movable claw; an elastic member installed between the movable claw and the bending plate, wherein the elastic member comprises a spring; When the tree pole is clamped between the fixed claw and the movable claw, the spring is in a compressed state.

2. The forestry tree diameter at breast height measuring device according to claim 1, characterized in that: The guide rail slider pair includes: a spacer block, mounted on the strip plate; A guide rail is installed on the pad along the length direction of the strip plate; The slider is slidably mounted on the guide rail, and the bending plate is mounted on the slider.

3. The forestry tree diameter at breast height measuring device according to claim 2, characterized in that: The guide rail slider pair also includes: The limiting piece is installed at the end of the guide rail.

4. The forestry tree diameter at breast height measuring device according to claim 1, characterized in that: The elastic member further comprises: A support, mounted on the bent plate; A spline shaft is slidably provided in the support along the length direction of the strip plate; A fixed ring is mounted on one end of the spline shaft, and the movable claw is mounted on the other end of the spline shaft; Wherein, the spring is sleeved on the spline shaft and is located between the movable claw and the support.

5. The forestry tree diameter at breast height measuring device according to claim 4, characterized in that: The elastic member further comprises: The annular force sensor is sleeved on the spline shaft and located between the spring and the support.

6. The forestry tree diameter at breast height measuring device according to claim 5, characterized in that: The elastic member further comprises: The first metal gasket is sleeved on the spline shaft and is located between the spring and the annular force sensor.

7. The forestry tree diameter at breast height measuring device according to claim 4, characterized in that: The elastic member further comprises: The spline outer cylinder is slidably mounted on the spline shaft and is installed on the support.

8. The forestry tree diameter at breast height measuring device according to claim 4, characterized in that: The elastic member further comprises: The second metal gasket is sleeved on the spline shaft and is located between the spring and the movable claw.

9. A forestry tree diameter at breast height measuring device according to any one of claims 1 to 8, characterized in that: Also includes: A handle is mounted on the strip plate.

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