Device for measuring diameter at breast height of forest

Abstract

The utility model discloses a device for measuring the diameter at breast height of a forest, which comprises a first measuring rod, a first positioning rod and a second positioning rod, and is characterized in that the first measuring rod is provided with a first length measuring scale along the outer wall surface, and the first length measuring scale extends along the length direction of the first measuring rod; the first positioning rod is arranged at one end of the first measuring rod; the second positioning rod and the first measuring rod are in sliding connection through the connecting base, the second positioning rod is used for sliding in the length direction of the first measuring rod through the connecting base, and the first positioning rod and the second positioning rod clamp a to-be-measured forest, so that the first length measuring scale measures the diameter at breast height of the to-be-measured forest. In the technical scheme provided by the utility model, the DBH data is directly confirmed by checking the position of the connecting seat at the first length measuring scale, so that the rapid measurement is realized, and the use of workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of forest tree diameter at breast height measurement, in particular to a device for measuring the forest tree diameter at breast height. Background Art

[0002] Forest surveys are conducted on forest land, trees, animals and plants growing in forest areas and their environmental conditions. The purpose is to timely grasp the quantity, quality, growth and extinction dynamics of forest resources and their relationship with the natural environment, economy and management conditions, to formulate forestry plans and to assess the effectiveness of forest management, so as to ensure that forest resources are fully utilized in national economic construction and to continuously improve their potential productivity.

[0003] The breast diameter of a tree is also called the trunk diameter, which refers to the diameter of the trunk of a tree at breast height above the ground. When the cross section is deformed, the average of the maximum and minimum values ​​is measured. The breast heights of different trees are different. A soft ruler is often used to measure the breast diameter of a tree, but it is very inconvenient to operate and the measurement speed is slow. Utility Model Content

[0004] The main purpose of the utility model is to provide a measuring device for the diameter at breast height of trees, aiming to solve the problem of inconvenience in measuring the diameter at breast height of trees.

[0005] In order to achieve the above purpose, the technical solution proposed by the utility model is:

[0006] A device for measuring the breast diameter of a tree comprises a first measuring rod, a first positioning rod and a second positioning rod, wherein the first measuring rod is provided with a first length measuring scale along an outer wall surface, and the first length measuring scale extends along the length direction of the first measuring rod; the first positioning rod is provided at one end of the first measuring rod; the second positioning rod and the first measuring rod are slidably connected via a connecting seat, and the second positioning rod is used to slide along the length direction of the first measuring rod via the connecting seat, so as to clamp the first positioning rod and the second positioning rod to a tree to be measured, so that the first length measuring scale measures the breast diameter data of the tree to be measured.

[0007] Preferably, a telescopic rod is further provided at one end of the first measuring rod and the first positioning rod, one end of the telescopic rod is connected to the first positioning rod, and the telescopic rod is used to extend so that the first measuring rod is located at a preset height position of the tree.

[0008] Preferably, a receiving groove is provided on the side wall of the first positioning rod, and the receiving groove extends along the length direction of the first positioning rod. A hinge shaft is arranged in the receiving groove, and the hinge shaft is rotatably connected to one end of the telescopic rod; the receiving groove is used to accommodate the telescopic rod extended to the shortest length.

[0009] Preferably, an elastic strip is provided on the groove wall of the accommodating groove, and the elastic strip extends along the extension direction of the accommodating groove. The elastic strip is used to clamp the telescopic rod so that the telescopic rod is fixed in the accommodating groove.

[0010] Preferably, the connecting seat includes a shell arranged around the first measuring rod, the end of the second positioning rod close to the first measuring rod is connected to the outer wall surface of the shell, and an elastic layer is arranged on the side of the shell facing the first measuring rod.

[0011] Preferably, a slideway is provided in the first measuring rod along the length direction of the first measuring rod, the slideway passes through one end of the first measuring rod away from the first positioning rod, a second measuring rod is arranged in the slideway, the first measuring rod is parallel to the first measuring rod, and a second length measuring scale is arranged on the outer wall surface of the second measuring rod; the first measuring rod is slidably connected along the slideway; and the shell is used to slide between the first measuring rod and the second measuring rod.

[0012] Preferably, a detachable limit plate is provided at one end of the second measuring rod away from the first positioning rod, and the limit plate is used to prevent the shell from detaching from the end of the second measuring rod away from the first positioning rod when the shell slides along the second measuring rod.

[0013] Preferably, a connecting screw hole is provided at one end of the second measuring rod away from the first measuring rod, and a stud is provided on the side of the limiting plate facing the second measuring rod, and the stud is used to be threadedly connected to the connecting screw hole to relatively fix the limiting plate and the second measuring rod.

[0014] Preferably, elastic blocks are provided at one end of the second measuring rod close to the first positioning rod and at a side of the limiting plate facing the second measuring rod.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] The first positioning rod abuts one side of the tree, and the second positioning rod slides along the first measuring rod through the connecting seat to make the second positioning rod abut the other side of the tree. By checking the position of the connecting seat on the first length measurement scale, the breast diameter data can be directly confirmed, thereby achieving rapid measurement and facilitating use by staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of an embodiment of a device for measuring the diameter at breast height of trees of the utility model;

[0019] Figure 2 A schematic diagram of the internal structure of the connection between the first measuring rod and the second measuring rod;

[0020] Figure 3 It is a schematic diagram of the internal structure of the connection between the first positioning rod and the telescopic rod.

[0021] Description of Figure Numbers:

[0022] 1-first measuring rod; 11-slideway;

[0023] 2-second measuring rod; 21-limiting plate; 22-connecting screw hole; 23-stud; 24-elastic block;

[0024] 3-first positioning rod; 31-telescopic rod; 32-accommodating groove; 33-hinge axis; 34-elastic strip;

[0025] 4- second positioning rod;

[0026] 5-Connection seat;

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The utility model provides a measuring device for the breast diameter of trees.

[0034] like Figures 1 to 3 A device for measuring the breast diameter of a tree is shown, comprising a first measuring rod 1, a first positioning rod 3 and a second positioning rod 4. The first measuring rod 1 is provided with a first length measuring scale (not shown in the figure) along the outer wall surface, and the first length measuring scale extends along the length direction of the first measuring rod 1; the first positioning rod 3 is provided at one end of the first measuring rod 1; the second positioning rod 4 and the first measuring rod 1 are slidably connected via a connecting seat 5, and the second positioning rod 4 is used to slide along the length direction of the first measuring rod 1 via the connecting seat 5, so as to clamp the first positioning rod 3 and the second positioning rod 4 to the tree to be measured, so that the first length measurement scale measures the breast diameter data of the tree to be measured.

[0035] The first positioning rod 3 abuts one side of the tree, and the second positioning rod 4 slides along the first measuring rod 1 through the connecting seat 5 to make the second positioning rod 4 abut the other side of the tree. By checking the position of the connecting seat 5 on the first length measurement scale, the breast diameter data can be directly confirmed to achieve rapid measurement, which is convenient for staff to use.

[0036] Specifically, the first positioning rod 3 is parallel to the second positioning rod 4 .

[0037] Specifically, the setting of the first length measurement scale is similar to that of an existing ruler, and is a common technical solution, so it will not be described in detail here.

[0038] The first measuring rod 1 is provided with a telescopic rod 31 at one end of the first positioning rod 3, one end of the telescopic rod 31 is connected to the first positioning rod 3, and the telescopic rod 31 is used to extend so that the first measuring rod 1 is located at a preset height of the tree. The provision of the telescopic rod 31 can facilitate the staff to quickly determine the height of the tree at 1.3 meters.

[0039] Specifically, the telescopic rod 31 is perpendicular to the first measuring rod 1 .

[0040] Specifically, the preset height position is 1.3 meters high of the trees.

[0041] The side wall of the first positioning rod 3 is provided with a receiving groove 32, which extends along the length direction of the first positioning rod 3. A hinge shaft 33 is arranged in the receiving groove 32, and the hinge shaft 33 is rotatably connected to one end of the telescopic rod 31; the receiving groove 32 is used to receive the telescopic rod 31 that is telescoped to the shortest length. When the telescopic rod 31 is not in use, the telescopic rod 31 is accommodated in the receiving groove 32; when the telescopic rod 31 is in use, the telescopic rod 31 is rotated along the hinge shaft 33 and moved out of the receiving groove 32 until the telescopic rod 31 is perpendicular to the first positioning rod 3, and then the telescopic rod 31 is stretched to the limit, which can assist the staff to operate the first measuring rod 1 at a height of 1.3 meters.

[0042] Specifically, the hinge axis 33 is parallel to the first measuring rod 1 .

[0043] Specifically, the longest length of the telescopic rod 31 extending out of the receiving slot 32 is 1.3 meters.

[0044] An elastic strip 34 is disposed on the groove wall of the accommodating groove 32 . The elastic strip 34 extends along the extending direction of the accommodating groove 32 . The elastic strip 34 is used to clamp the telescopic rod 31 so that the telescopic rod 31 is fixed in the accommodating groove 32 .

[0045] Specifically, two elastic strips 34 are disposed in the receiving groove 32 , and the two elastic strips 34 are used to clamp the telescopic rod 31 in the receiving groove 32 so that the telescopic rod 31 is fixed in the receiving groove 32 .

[0046] The connecting seat 5 includes a shell arranged around the first measuring rod 1, the end of the second positioning rod 4 close to the first measuring rod 1 is connected to the outer wall of the shell, and an elastic layer is arranged on the side of the shell facing the first measuring rod 1. The shell is arranged around the first measuring rod 1 through the elastic layer, which not only ensures a certain resistance during the movement process, but also ensures that the second positioning rod 4 can slide along the first measuring rod 1.

[0047] A slideway 11 is provided inside the first measuring rod 1 along the length direction of the first measuring rod 1. The slideway 11 passes through one end of the first measuring rod 1 away from the first positioning rod 3. A second measuring rod 2 is provided inside the slideway 11. The first measuring rod 1 is parallel to the first measuring rod 1. A second length measurement scale is provided on the outer wall of the second measuring rod 2. The first measuring rod 1 is slidably connected along the slideway 11. The shell is used to slide between the first measuring rod 1 and the second measuring rod 2. The provision of the second measuring rod 2 can increase the measuring distance between the first positioning rod 3 and the second positioning rod 4. Through the cooperation of the elastic layer and the shell, it can also ensure that the second positioning rod 4 slides back and forth between the first measuring rod 1 and the second measuring rod 2. After measuring thicker trees, the diameter at breast height data can be determined by simply adding the data of the first length measurement scale and the value of the shell at the second length measurement scale.

[0048] A detachable limit plate 21 is provided at one end of the second measuring rod 2 away from the first positioning rod 3 , and the limit plate 21 is used to prevent the shell from detaching from the end of the second measuring rod 2 away from the first positioning rod 3 when the shell slides along the second measuring rod 2 .

[0049] Specifically, the limiting plate 21 is a circular plate, and the axial direction of the limiting plate 21 is parallel to the second measuring rod 2 .

[0050] A connecting screw hole 22 is formed at one end of the second measuring rod 2 away from the first measuring rod 1 , and a stud 23 is provided on the side of the limiting plate 21 facing the second measuring rod 2 . The stud 23 is used for threaded connection with the connecting screw hole 22 to relatively fix the limiting plate 21 and the second measuring rod 2 .

[0051] An elastic block 24 is provided at one end of the second measuring rod 2 close to the first positioning rod 3 and at one side of the limiting plate 21 facing the second measuring rod 2. The elastic block 24 is provided similarly to an elastic layer to ensure that the second measuring rod 2 has a certain resistance when sliding along the slideway 11, to achieve stability during sliding, and to fix the second measuring rod 2 in the slideway 11 through two sliders.

[0052] Specifically, the first measuring rod 1 and the first positioning rod 3 are detachably connected by bolts, so that the whole can be easily disassembled for storage and carrying.

[0053] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A device for measuring the diameter at breast height of trees, characterized in that: It includes a first measuring rod, a first positioning rod and a second positioning rod. The first measuring rod is provided with a first length measuring scale along the outer wall surface, and the first length measuring scale extends along the length direction of the first measuring rod; the first positioning rod is provided at one end of the first measuring rod; the second positioning rod and the first measuring rod are slidably connected through a connecting seat, and the second positioning rod is used to slide along the length direction of the first measuring rod through the connecting seat to clamp the first positioning rod and the second positioning rod to measure the tree, so that the first length measurement scale measures the breast diameter data of the tree to be measured.

2. A device for measuring the diameter at breast height of trees according to claim 1, characterized in that: A telescopic rod is also provided at one end of the first measuring rod and the first positioning rod, one end of which is connected to the first positioning rod. The telescopic rod is used to extend so that the first measuring rod is located at a preset height position of the tree.

3. The device for measuring the diameter at breast height of trees according to claim 2, characterized in that: A receiving groove is provided on the side wall of the first positioning rod, and the receiving groove extends along the length direction of the first positioning rod. A hinge shaft is arranged in the receiving groove, and the hinge shaft is rotatably connected to one end of the telescopic rod; the receiving groove is used to accommodate the telescopic rod telescoped to the shortest length.

4. The device for measuring the diameter at breast height of trees according to claim 3, characterized in that: An elastic strip is arranged on the groove wall of the accommodating groove, and the elastic strip extends along the extension direction of the accommodating groove. The elastic strip is used to clamp the telescopic rod so that the telescopic rod is fixed in the accommodating groove.

5. A device for measuring the diameter at breast height of trees according to any one of claims 1 to 4, characterized in that: The connecting seat includes a shell arranged around the first measuring rod, the end of the second positioning rod close to the first measuring rod is connected to the outer wall surface of the shell, and an elastic layer is arranged on a side of the shell facing the first measuring rod.

6. The device for measuring the diameter at breast height of trees according to claim 5, characterized in that: A slideway is provided inside the first measuring rod along the length direction of the first measuring rod, the slideway passes through one end of the first measuring rod away from the first positioning rod, a second measuring rod is arranged in the slideway, the first measuring rod is parallel to the first measuring rod, and a second length measuring scale is arranged on the outer wall surface of the second measuring rod; the first measuring rod is slidably connected along the slideway; the shell is used to slide between the first measuring rod and the second measuring rod.

7. The device for measuring the diameter at breast height of trees according to claim 6, characterized in that: A detachable limit plate is provided at one end of the second measuring rod away from the first positioning rod, and the limit plate is used to prevent the shell from detaching from the end of the second measuring rod away from the first positioning rod when the shell slides along the second measuring rod.

8. The device for measuring the diameter at breast height of trees according to claim 7, characterized in that: A connecting screw hole is provided at one end of the second measuring rod away from the first measuring rod, and a stud is provided on the side of the limiting plate facing the second measuring rod. The stud is used to be threadedly connected to the connecting screw hole to relatively fix the limiting plate and the second measuring rod.

9. The device for measuring the diameter at breast height of trees according to claim 8, characterized in that: An elastic block is arranged on one end of the second measuring rod close to the first positioning rod and on one side of the limiting plate facing the second measuring rod.

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