A measuring pole for forest tree height measurement

Abstract

The utility model discloses a kind of measuring rods for forest tree height measurement, related to ecological environment detection technical field, including bearing box, telescopic rod is arranged in bearing box, telescopic rod includes multiple sections of sleeve pipe arranged in turn, multiple sleeve pipes are sequentially limited sliding connection, sleeve pipe side wall is provided with ratchet, one side of sleeve pipe is provided with driving wheel, driving wheel is engaged with ratchet, driving wheel is set on drive box, drive box is slidingly connected on slide, and slide is fixedly connected on bearing box;The side of drive box is provided with fixed plate, and fixed plate is connected with drive box by second spring rod, and second spring rod is used to resist driving wheel on sleeve pipe surface. By the setting of the utility model, a kind of forest tree height measuring rod with simple structure, convenient to carry, smooth and lock stable is provided, to meet the actual measurement needs of basic-level forestry work.

Description

Technical Field

[0001] This utility model relates to the field of ecological environment monitoring technology, and in particular to a measuring rod for measuring the height of forest trees. Background Technology

[0002] In forestry resource surveys, ecological environment monitoring, and forestry engineering construction, tree height is one of the core measurement indicators, and its measurement accuracy directly affects the accuracy of tasks such as estimating forest stock volume and assessing vegetation growth. Currently, forest tree height measurement mainly relies on three types of tools: First, traditional height measuring poles, usually one-piece rigid poles or simple splicing poles. These tools have obvious drawbacks: fixed length or cumbersome splicing, large space requirements when carried, and limited by tree height, making it difficult to adapt to the measurement needs of trees with different diameters at breast height and different heights. Especially in dense forest areas, they are easily obstructed by branches and terrain obstacles during transportation. Second, optical altimeters (such as laser altimeters and total stations), although they have a wide measurement range and high accuracy, are expensive and have complex operation procedures, requiring professional training before use. Furthermore, the measurement accuracy is easily affected by adverse weather conditions such as strong light and dense fog, making it unsuitable for daily rapid measurements by grassroots forestry workers; thirdly, existing telescopic height measuring poles mostly adopt snap-on or threaded locking structures, which are prone to problems such as loosening and jamming after repeated use, causing the telescopic pole to unexpectedly retract or fail to accurately locate the height during the measurement process. At the same time, its telescopic drive mostly relies on manual lifting or pressing, which is laborious and difficult to control the telescopic speed and stroke. Especially when measuring tall trees, the length of the telescopic pole needs to be adjusted repeatedly, resulting in low efficiency.

[0003] In view of the problems of inconvenience in carrying, cumbersome operation, unreliable locking, and low measurement efficiency in the existing technologies, there is an urgent need for a forest tree height measuring pole that is simple in structure, easy to carry, smooth in extension and retraction, and stable in locking, so as to meet the actual measurement needs of grassroots forestry work. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a measuring rod for measuring the height of trees in forests.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A measuring rod for measuring the height of trees in forests, characterized in that it includes a carrier box, a telescopic rod is provided inside the carrier box, the telescopic rod includes multiple sleeves arranged in sequence, the multiple sleeves are slidably connected in sequence with limiting, ratchet teeth are provided on the side wall of the sleeves, a drive wheel is provided on one side of the sleeves, the drive wheel engages with the ratchet teeth, the drive wheel is provided on a drive box, the drive box is slidably connected to a slide block, and the slide block is fixedly connected to the carrier box; a fixing plate is provided on one side of the drive box, the fixing plate is connected to the drive box through a second spring rod, the second spring rod is used to press the drive wheel against the surface of the sleeves.

[0006] Furthermore, support plates are provided on both sides of the carrier box, and positioning holes are provided on the support plates, with fixing rods installed in the positioning holes.

[0007] Furthermore, the top of the carrier box is provided with an opening for the telescopic rod to pass through, and a slide is fixedly connected to one side of the opening, and the drive box is horizontally slidably connected to the slide.

[0008] Furthermore, two sets of reset seats are fixedly connected to the other side of the opening, and a rotating seat is rotatably connected to the reset seat. A fixed frame is provided between the two rotating seats, and the fixed frame is connected to the second baffle through a first spring rod. A limit support is provided at the bottom of the fixed frame, and the limit support is used to limit the downward tilt of the fixed frame.

[0009] Furthermore, the reset seat is connected to the rotating seat via a torsion spring; the second baffle abuts against the sleeve.

[0010] Furthermore, the outermost sleeve is fixedly connected to the carrier box, and a first baffle is rotatably connected to the top of the sleeve, which is used to support the ratchet.

[0011] Beneficial effects

[0012] Compared with existing technologies, the advantages of this utility model are as follows: when not in use, the multiple sections of the sleeve can be retracted into the carrying box in sequence, which greatly reduces the overall volume and space occupied. Compared with traditional integrated height measuring poles, it is easier to transport in dense forest areas and effectively avoids problems such as tree branches blocking the view and terrain obstacles. When in use, the extension of the sleeve only needs to be controlled by the drive structure, without the need for cumbersome splicing. This solves the pain points of traditional splicing poles being inconvenient to operate and difficult to carry, and is more suitable for the mobile measurement needs of grassroots forestry workers in complex forest environments. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] Figure 1 ,2 This is a schematic diagram of the overall structure of the measuring rod.

[0015] Figure 3 This is an enlarged view of the structure of part A.

[0016] Figure 4 This is an enlarged view of the structure of part B.

[0017] Figure 5 This is an enlarged view of the structure of part C.

[0018] In the diagram: 1. First baffle; 2. Second baffle; 3. First spring rod; 4. Fixing frame; 5. Reset seat; 6. Drive wheel; 7. Drive box; 8. Second spring rod; 9. Slide. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Reference Figures 1-5 A measuring rod for measuring the height of trees in forests includes a carrier box, a telescopic rod inside the carrier box, and a telescopic rod comprising multiple sleeve sections arranged sequentially. The sleeve sections are slidably connected in sequence and have ratchet teeth on their sidewalls. A drive wheel 6 is provided on one side of the sleeve and engages with the ratchet teeth. The drive wheel 6 is mounted on a drive box 7, which is slidably connected to a slide block 9. The slide block 9 is fixedly connected to the carrier box. A fixing plate is provided on one side of the drive box 7, and the fixing plate is connected to the drive box 7 via a second spring rod 8. The second spring rod 8 is used to press the drive wheel 6 against the surface of the sleeve.

[0022] When not in use, the multiple sections of the tube can be retracted into the carrying box in sequence, which greatly reduces the overall volume and space occupied. Compared with the traditional integrated height measuring pole, it is easier to transport in dense forest areas and effectively avoids problems such as tree branches blocking the view and terrain obstacles. When in use, the extension of the tube can be controlled by the drive structure, without the need for complicated splicing. This solves the pain points of traditional splicing poles being inconvenient to operate and difficult to carry, and is more suitable for the mobile measurement needs of grassroots forestry workers in complex forest environments.

[0023] During use, as the telescopic rod extends or retracts, the position of the sleeve changes accordingly. The drive box 7 can slide along the slide block 9 and dynamically adjust its own position according to the position of the sleeve, ensuring that the drive wheel 6 always stays in contact with the sleeve. The meshing transmission between the drive wheel 6 and the ratchet can convert the rotational force into the linear extension force of the sleeve. There is no need for the operator to directly pull the telescopic rod, which not only reduces the intensity of operation, but also allows for precise adjustment of the sleeve extension speed and stroke by controlling the speed of the drive wheel 6. After the measurement is completed, the operator pulls the drive box 7 outward to disengage the ratchet from the drive wheel 6 and pulls the sleeve downward.

[0024] In other preferred embodiments, support plates are provided on both sides of the carrier box, and positioning holes are provided on the support plates, with fixing rods installed in the positioning holes. The support plates on both sides of the carrier box, together with the positioning holes and fixing rods, constitute a stable support structure for the measuring rod. In forest surveying scenarios, the ground is often uneven due to slopes, gravel, or vegetation cover. In this case, the fixing rods can be inserted into the positioning holes, and the depth and angle of the fixing rods inserted into the ground can be adjusted according to the terrain requirements to ensure that the support plates fit tightly against the ground, providing a stable support foundation for the entire measuring rod.

[0025] In other preferred embodiments, the top of the carrier box is provided with an opening for the telescopic rod to pass through, and a slide 9 is fixedly connected to one side of the opening, with the drive box 7 horizontally slidably connected to the slide 9.

[0026] Specifically, two sets of reset seats 5 are fixedly connected to the other side of the opening. A rotating seat is rotatably connected to the reset seat 5. A fixed frame 4 is provided between the two rotating seats. The fixed frame 4 is connected to the second baffle 2 through the first spring rod 3. A limit support is provided at the bottom of the fixed frame 4. The limit support is used to limit the downward tilt of the fixed frame 4.

[0027] When the drive wheel 6 extends the top sleeve upwards, the second baffle 2, under the elastic pressing action of the first spring rod 3, tightly adheres to the side wall of the lower sleeve, forming a limiting block on the lower sleeve. This effectively prevents the lower sleeve from moving due to the pulling or friction of the top sleeve, ensuring that each sleeve section extends as needed only under the independent drive of the drive wheel 6. The rotatable connection between the reset seat 5 and the rotating seat allows the fixing frame 4 to flexibly adjust its angle according to the sleeve's extension and retraction. After the top sleeve has extended, the lower sleeve is driven upwards by the drive wheel 6. The rotating seat, in conjunction with the first spring rod 3, can cause the second baffle 2 to tilt slightly upwards before resetting and pressing against the upper wall of the lower sleeve again.

[0028] The reset seat 5 is connected to the rotating seat via a torsion spring; the second baffle 2 abuts against the sleeve. The reset seat 5 is connected to the rotating seat via a torsion spring, which can provide a stable elastic reset force after the rotating seat adjusts its angle according to the sleeve's state, ensuring that the rotating seat drives the fixed frame 4 and the second baffle 2 to always maintain a pre-tightening tendency towards the sleeve.

[0029] In other preferred embodiments, the outermost sleeve is fixedly connected to the carrier box, and a first baffle 1 is rotatably connected to the top of the sleeve. The first baffle 1 is used to support the ratchet. The fixed connection between the outermost sleeve and the carrier box provides a stable foundation support for the entire telescopic rod, ensuring that the multiple inner sleeve sections always slide with the outermost sleeve as the reference during the extension and retraction process. This avoids the overall displacement of the telescopic rod caused by the shaking of the outer sleeve, ensures the verticality of the measuring rod, and reduces the reference deviation during height measurement. The first baffle 1 adopts a rotatable connection. When the inner sleeve extends from the outer sleeve, the ratchet at the top of the inner sleeve can tilt it by squeezing the first baffle 1. After the ratchet passes, the first baffle 1 returns to its original position under the influence of gravity, thus supporting the ratchet after it has passed.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A measuring rod for measuring the height of trees in a forest, characterized in that, The device includes a carrier box, inside which a telescopic rod is installed. The telescopic rod comprises multiple sleeve sections arranged sequentially and connected in a slidable manner. The sidewalls of the sleeve sections are provided with ratchet teeth. A drive wheel is provided on one side of the sleeve section, and the drive wheel engages with the ratchet teeth. The drive wheel is mounted on a drive box, which is slidably connected to a slide block, and the slide block is fixedly connected to the carrier box. A fixing plate is provided on one side of the drive box, and the fixing plate is connected to the drive box via a second spring rod, which is used to press the drive wheel against the surface of the sleeve section.

2. The measuring pole for measuring the height of forest trees according to claim 1, characterized in that, The support plate is provided on both sides of the carrier box, and the support plate is provided with positioning holes, and a fixing rod is provided in the positioning holes.

3. The measuring pole for measuring the height of forest trees according to claim 1, characterized in that, The top of the carrier box has an opening for the telescopic rod to pass through, and a slide block is fixedly connected to one side of the opening. The drive box is horizontally slidably connected to the slide block.

4. A measuring pole for measuring the height of forest trees according to claim 3, characterized in that Two sets of reset seats are fixedly connected to the other side of the opening. A rotating seat is rotatably connected to the reset seat. A fixed frame is provided between the two rotating seats. The fixed frame is connected to the second baffle through a first spring rod. A limit support is provided at the bottom of the fixed frame. The limit support is used to limit the downward tilt of the fixed frame.

5. A measuring rod for measuring the height of trees in a forest according to claim 4, characterized in that, The reset seat is connected to the rotating seat via a torsion spring; the second baffle abuts against the sleeve.

6. A measuring rod for measuring the height of trees in a forest according to claim 1, characterized in that, The outermost sleeve is fixedly connected to the carrier box, and a first baffle is rotatably connected to the top of the sleeve. The first baffle is used to support the ratchet.

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