A tool for forestry measurement of tree breast height

Abstract

This utility model relates to the field of forestry measurement technology, specifically a tool for measuring the diameter at breast height (DBH) of trees. It includes a base, a vertical pole, a horizontal bar, a handle, and a support device. The handle is fixedly connected to the upper surface of the horizontal bar. A storage groove is formed on the surface of the base, and a sleeve is fixedly connected to the inner wall of the storage groove. The support device, comprising a panel and a support rod, has a sliding groove on its inner wall. The panel is located on the inner wall of the storage groove, and the support rod is fixed to the lower surface of the panel. This utility model, by incorporating a support device, facilitates the overall stability of the equipment. This avoids the inconvenience of existing methods where measuring the DBH of smaller trees can be completed independently by one operator, but larger trees require two or more operators working together. This effectively improves the stability of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of forestry measurement technology, and in particular to a tool for measuring the diameter at breast height (DBH) of trees in forestry. Background Technology

[0002] The tools used in forestry for measuring tree diameter at breast height (DBH) mainly include dendrometers and DBH growth measuring rings. Dendrometers are a key tool in forestry resource surveys, primarily used for the precise measurement of tree diameter, height, and cross-sectional area. They provide detailed dimensional information about trees, helping forestry workers accurately understand tree growth status and resource distribution.

[0003] Existing technologies, such as CN219368598U, disclose a tool for measuring the diameter at breast height (DBH) of trees in forestry. This tool includes a pole with a tool box fixedly connected to its top. A clamping jaw is movably connected to the side of the tool box near the trunk, radially clamping both sides of the trunk. The end of the clamping jaw extends into the tool box away from the trunk. A measuring tape is also provided inside the tool box, with both ends fixedly connected to the two clamping jaws. The measuring tape has markings indicating the distance between the two clamping jaws. A first opening is provided on the side of the tool box away from the trunk for the middle of the measuring tape to extend. Vertically, the distance from the center of the clamping jaw to the bottom of the pole is 1.3 meters. This patent solves the problem of existing technologies requiring users to first determine the 1.3-meter mark and then manually pull the measuring tape around the trunk to measure the DBH, which is cumbersome.

[0004] To address the problems with existing equipment for measuring trees, the current method of measuring tree diameter at breast height (DBH) can be completed by one operator for smaller trees, but for larger trees, two or more operators are required to work together, which is inconvenient. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing methods for measuring the diameter at breast height (DBH) of trees. While smaller trees can be measured independently by one operator, larger trees require two or more operators working together, which is inconvenient. This invention provides a tool for measuring DBH in forestry.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tool for measuring the diameter at breast height (DBH) of trees in forestry, comprising a base, a vertical pole, a horizontal bar, a handle, and a support device. The vertical pole is fixedly connected to the upper surface of the base, the horizontal bar is fixedly connected to the upper surface of the vertical pole, and the handle is fixedly connected to the upper surface of the horizontal bar. A storage groove is provided on the surface of the base, and a sleeve post is fixedly connected to the inner wall of the storage groove. A support device is provided on the inner wall of the storage groove, and the support device includes a panel and a support rod. A sliding groove is provided on the inner wall of the sleeve post, the panel is located on the inner wall of the storage groove, and the support rod is fixed to the lower surface of the panel.

[0007] Furthermore, the number of the storage slots is two sets and they are arranged symmetrically, the number of the sleeve columns is two sets and they are arranged symmetrically, and the inner wall of the slide is fitted with a long rod.

[0008] Furthermore, a limiting block is fixedly connected to the surface of the long rod, the limiting block is slidably connected to the inner wall of the groove, and the side of the long rod away from the limiting block is fixedly connected to the surface of the panel.

[0009] Furthermore, the surface of the storage slot is provided with a slot, the support rod is engaged with the inner wall of the slot, the surface of the base is provided with a fixing hole, the inner wall of the fixing hole is rotatably connected to a rotating rod, the inner wall of the fixing hole is fixedly connected to a torsion spring, the surface of the rotating rod is fixedly connected to a locking block, and the locking block is fixedly connected to the surface of the torsion spring.

[0010] Furthermore, a measuring device is provided on the surface of the crossbar. The measuring device includes a slide rail, which is opened on the surface of the crossbar. There are two sets of slide rails arranged symmetrically, and a measuring rod is slidably connected to the inner wall of the slide rail.

[0011] Furthermore, a slider is fixedly connected to the surface of the measuring rod, the slider is slidably connected to the inner wall of the slide, and a connecting block is fixedly connected to the surface of the measuring rod.

[0012] Furthermore, a telescopic rod is fixedly connected to the surface of the connecting block, a tension spring is fixedly connected to the surface of the connecting block, the tension spring is sleeved and connected to the surface of the telescopic rod, and a collar is fixedly connected to the end of the tension spring away from the connecting block, and the collar is fixedly connected to the surface of the telescopic rod.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by setting a support device, the base is more stable when the overall equipment is supported and stabilized. Rotating the locking block causes it to rotate along the axis of the rotating rod, causing the torsion spring to deform under force. This frees the panel from the locking block's restraint. Pulling the panel then causes it to pull the long rod out along the inner wall of the sliding groove. The two side panels then move outwards, increasing the support area of ​​the base and preventing the base from being too small to stably support the entire equipment. When the equipment is no longer in use, the panel is pushed back into the storage slot, the locking block is released, and the torsion spring's return force rotates the locking block back to its original position, thus stably locking the panel inside the storage slot. By setting a support device, the overall equipment is easily supported and stabilized. This avoids the inconvenience of existing methods for measuring the diameter at breast height (DBH) of trees, where smaller trees can be measured independently by one operator, but larger trees require two or more operators working together. This effectively improves the stability of the equipment.

[0015] 2. In this utility model, by setting up a measuring device, the use of the crossbar is more convenient when measuring trees. Pulling the measuring rod causes it to drive the slider to slide along the inner wall of the slide rail. The slider prevents the measuring rod from disengaging from the crossbar. Then, pulling the collar causes the telescopic rod to extend and retract, and the tension spring is stretched and expanded. The collar can then be locked onto the surface of the tree, allowing the connecting block and the collar to be adjusted according to the size of the tree, effectively enclosing the tree. By setting up a measuring device, it is convenient to measure trees, avoiding measurement errors caused by trees of different sizes, thus effectively improving the accuracy of the equipment. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a tool for measuring the diameter at breast height (DBH) of trees in forestry.

[0017] Figure 2 This utility model provides a schematic diagram of the main structure of a support device in a tool for measuring the diameter at breast height of trees in forestry.

[0018] Figure 3 This utility model proposes a tool for measuring the diameter at breast height (DBH) of trees in forestry. Figure 2 Schematic diagram at point A;

[0019] Figure 4 This utility model provides a schematic diagram of the main structure of the measuring device in a tool for measuring the diameter at breast height of trees in forestry.

[0020] Figure 5 This utility model proposes a tool for measuring the diameter at breast height (DBH) of trees in forestry. Figure 4 Schematic diagram at point B.

[0021] Legend:

[0022] 1. Base; 2. Upright pole; 3. Horizontal bar; 4. Handle; 5. Support device; 51. Storage slot; 52. Sleeve column; 53. Slide groove; 54. Long rod; 55. Limiting block; 56. Panel; 57. Support rod; 58. Slot; 59. Fixing hole; 510. Rotating rod; 511. Torsion spring; 512. Locking block; 6. Measuring device; 61. Slide rail; 62. Measuring rod; 63. Sliding block; 64. Connecting block; 65. Telescopic rod; 66. Tension spring; 67. Collar. Detailed Implementation

[0023] Please see Figures 1-5 This utility model provides a technical solution: a tool for measuring the diameter at breast height (DBH) of trees in forestry, comprising a base 1, a vertical pole 2, a horizontal bar 3, a handle 4, and a support device 5. The vertical pole 2 is fixedly connected to the upper surface of the base 1, the horizontal bar 3 is fixedly connected to the upper surface of the vertical pole 2, the handle 4 is fixedly connected to the upper surface of the horizontal bar 3, a storage groove 51 is provided on the base 1, the storage groove 51 is opened on the surface of the base 1, a sleeve post 52 is fixedly connected to the inner wall of the storage groove 51, and the support device 5 is provided on the inner wall of the storage groove 51.

[0024] The specific setup and function of the support device 5 and the measuring device 6 will be explained in detail below.

[0025] In this embodiment: the support device 5 includes a panel 56 and a support rod 57. The inner wall of the sleeve column 52 is provided with a sliding groove 53. The panel 56 is located on the inner wall of the storage groove 51. The support rod 57 is fixed to the lower surface of the panel 56.

[0026] Specifically, there are two sets of storage slots 51 arranged symmetrically, two sets of sleeve columns 52 arranged symmetrically, and a long rod 54 is sleeved and connected to the inner wall of the slide 53.

[0027] Specifically, a limiting block 55 is fixedly connected to the surface of the long rod 54, the limiting block 55 is slidably connected to the inner wall of the slide groove 53, and the side of the long rod 54 away from the limiting block 55 is fixedly connected to the surface of the panel 56.

[0028] Specifically, the surface of the storage slot 51 is provided with a slot 58, the support rod 57 is engaged with the inner wall of the slot 58, the surface of the base 1 is provided with a fixing hole 59, the inner wall of the fixing hole 59 is rotatably connected to a rotating rod 510, the inner wall of the fixing hole 59 is fixedly connected to a torsion spring 511, the surface of the rotating rod 510 is fixedly connected to a locking block 512, and the locking block 512 is fixedly connected to the surface of the torsion spring 511.

[0029] The effects achieved by the above components are as follows: by setting up the storage groove 51, it is convenient to store the panel 56 and the long rod 54; by setting up the limiting block 55, it is convenient to prevent the panel 56 from being pulled too much, causing the long rod 54 to detach from the sleeve post 52; by setting up the slot 58, it is convenient to allow the support rod 57 fixed to the panel 56 to be inserted into the inner wall of the slot 58 for storage when the panel 56 is stored in the storage groove 51; by setting up the rotating rod 510, it is convenient to allow the locking block 512 to rotate along the axis of the rotating rod 510; and by setting up the torsion spring 511, it is convenient to allow the locking block 512 to rotate and reset after the locking block 512 is unrestrained, thus locking the panel 56 stably.

[0030] Specifically, a measuring device 6 is provided on the surface of the crossbar 3. The measuring device 6 includes a slide 61, which is opened on the surface of the crossbar 3. There are two sets of slides 61 arranged symmetrically. A measuring rod 62 is slidably connected to the inner wall of the slide 61.

[0031] Specifically, a slider 63 is fixedly connected to the surface of the measuring rod 62, the slider 63 is slidably connected to the inner wall of the slide rail 61, and a connecting block 64 is fixedly connected to the surface of the measuring rod 62.

[0032] Specifically, a telescopic rod 65 is fixedly connected to the surface of the connecting block 64, a tension spring 66 is fixedly connected to the surface of the connecting block 64, the tension spring 66 is sleeved and connected to the surface of the telescopic rod 65, and a collar 67 is fixedly connected to the end of the tension spring 66 away from the connecting block 64, and the collar 67 is fixedly connected to the surface of the telescopic rod 65.

[0033] The effects achieved by the above components are as follows: by setting the slide rail 61, the measuring rod 62 can slide stably along the inner wall of the slide rail 61; by setting the connection between the slider 63 and the slide rail 61, the measuring rod 62 can be prevented from separating from the crossbar 3; by setting the telescopic rod 65, the position between the collar 67 and the connecting block 64 can be adjusted according to the size of the tree; by setting the tension spring 66, the elastic force of the tension spring 66 can drive the collar 67 to return to its original position after the collar 67 is unrestrained, so that the collar 67 and the connecting block 64 work together to encircle the tree.

[0034] Working principle: By setting up the support device 5, the base 1 is more stable when the overall equipment is supported and stabilized. Rotating the locking block 512 causes it to rotate along the axis of the rotating rod 510, causing the torsion spring 511 to deform under force. This frees the panel 56 from the constraint of the locking block 512. Pulling the panel 56 then causes the long rod 54 to be pulled out along the inner wall of the slide groove 53. Subsequently, both panels 56 move outwards, increasing the support area of ​​the base 1 and preventing the base 1 from being too small, which would prevent it from providing stable support for the entire equipment. After using the equipment, push the panel 56 back into the storage slot 51, release the locking block 512, and let the rotational force of the torsion spring 511 drive the locking block 512 to rotate back to its original position, thus stably locking the panel 56 inside the storage slot 51. By setting the support device 5, it is easy to support and stabilize the entire equipment. This avoids the inconvenience of using the existing method to measure the diameter at breast height of trees. While some smaller trees can be measured by one operator independently, larger trees require two or more operators to work together to complete the measurement. This effectively improves the stability of the equipment.

[0035] Furthermore, by setting up the measuring device 6, the use of the crossbar 3 is made more convenient when measuring trees. Pulling the measuring rod 62 causes the slider 63 to slide along the inner wall of the slide rail 61. The slider 63 prevents the measuring rod 62 from disengaging from the crossbar 3. Then, pulling the collar 67 causes the telescopic rod 65 to extend and retract, and the tension spring 66 is stretched and expanded. The collar 67 can then be locked onto the surface of the tree, allowing the connecting block 64 and the collar 67 to be adjusted according to the size of the tree, effectively enclosing the tree. By setting up the measuring device 6, it is convenient to measure trees, avoiding measurement errors caused by trees of different sizes. This effectively improves the accuracy of the equipment.

Claims

1. A tool for measuring the diameter at breast height (DBH) of trees in forestry, comprising a base (1), a vertical pole (2), a horizontal bar (3), a handle (4), and a support device (5), characterized in that: The upright (2) is fixedly connected to the upper surface of the base (1), the crossbar (3) is fixedly connected to the upper surface of the upright (2), the handle (4) is fixedly connected to the upper surface of the crossbar (3), the base (1) is provided with a storage groove (51), the storage groove (51) is opened on the surface of the base (1), the inner wall of the storage groove (51) is fixedly connected with a sleeve (52), the inner wall of the storage groove (51) is provided with a support device (5), the support device (5) includes a panel (56) and a support rod (57), the inner wall of the sleeve (52) is provided with a sliding groove (53), the panel (56) is located on the inner wall of the storage groove (51), and the support rod (57) is fixed to the lower surface of the panel (56).

2. The tool for measuring tree diameter at breast height (DBH) in forestry according to claim 1, characterized in that: The number of the storage slots (51) is two sets and they are arranged symmetrically. The number of the sleeves (52) is two sets and they are arranged symmetrically. The inner wall of the slide (53) is fitted with a long rod (54).

3. A tool for measuring tree diameter at breast height in forestry according to claim 2, characterized in that: A limiting block (55) is fixedly connected to the surface of the long rod (54), the limiting block (55) is slidably connected to the inner wall of the slide groove (53), and the side of the long rod (54) away from the limiting block (55) is fixedly connected to the surface of the panel (56).

4. A tool for measuring tree diameter at breast height in forestry according to claim 3, characterized in that: The surface of the storage slot (51) is provided with a slot (58), the support rod (57) is engaged with the inner wall of the slot (58), the surface of the base (1) is provided with a fixing hole (59), the inner wall of the fixing hole (59) is rotatably connected with a rotating rod (510), the inner wall of the fixing hole (59) is fixedly connected with a torsion spring (511), the surface of the rotating rod (510) is fixedly connected with a locking block (512), and the locking block (512) is fixedly connected with the surface of the torsion spring (511).

5. A tool for measuring tree diameter at breast height in forestry according to claim 1, characterized in that: A measuring device (6) is provided on the surface of the crossbar (3). The measuring device (6) includes a slide (61). The slide (61) is opened on the surface of the crossbar (3). There are two sets of slides (61) arranged symmetrically. A measuring rod (62) is slidably connected to the inner wall of the slide (61).

6. A tool for measuring tree diameter at breast height in forestry according to claim 5, characterized in that: A slider (63) is fixedly connected to the surface of the measuring rod (62), and the slider (63) is slidably connected to the inner wall of the slide rail (61). A connecting block (64) is fixedly connected to the surface of the measuring rod (62).

7. A tool for measuring tree diameter at breast height in forestry according to claim 6, characterized in that: A telescopic rod (65) is fixedly connected to the surface of the connecting block (64), and a tension spring (66) is fixedly connected to the surface of the connecting block (64). The tension spring (66) is sleeved and connected to the surface of the telescopic rod (65). A collar (67) is fixedly connected to the end of the tension spring (66) away from the connecting block (64), and the collar (67) is fixedly connected to the surface of the telescopic rod (65).

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