A portable tree breast height quick detection device

Abstract

The application discloses a portable tree breast height diameter rapid detection device and belongs to the breast height diameter detection field. The device comprises a moving mechanism, the top of the moving mechanism is provided with a lifting mechanism, the top of the lifting mechanism is provided with a measuring mechanism, the right side of the measuring mechanism is provided with a driving mechanism, the measuring mechanism comprises a transverse seat, a cavity is formed in the right side of the inside of the transverse seat, a movable groove is formed in the left side of the rear surface of the transverse seat, a fixed clamping strip is fixedly connected to the left side of the inside of the movable groove, and a movable clamping strip is slidably connected to the right side of the inside of the movable groove. The device is provided with the moving mechanism, the universal wheels at the bottom of the bottom plate can drive the whole device to roll flexibly, the device can be quickly transported between different positions in a forest land by an operator, manual carrying is not needed, manpower is effectively saved, positioning can be quickly completed after the device is moved to the side of target trees, the convenience of forestry investigation on-site operation is greatly improved, and the device is suitable for the complex operation environment of a forest land.

Description

Technical Field

[0001] This invention relates to the field of diameter at breast height (DBH) testing, and more particularly to a portable rapid DBH testing device for trees. Background Technology

[0002] Forest surveys are the systematic collection, processing, and forecasting of information related to forest resources in accordance with the objectives of forest management. They involve investigating the natural and non-natural attributes of forestry land, including the status of forest resources, forest history, existing conditions, and future development. These surveys utilize methods such as measurement, tree surveying, remote sensing, various specialized surveys, sampling, and computerized techniques to ascertain the quantity, quality, distribution, growth, consumption, and site quality evaluation of forests within a defined area. This provides a basis for formulating forestry policies and for the scientific management of forests. Tree diameter at breast height (DBH) is one of the survey indicators. Currently, the measuring tools commonly used by forestry surveyors when measuring tree diameter at breast height (DBH) have many shortcomings: on the one hand, traditional measuring tools often need to be fixed to the tree to complete the measurement, which is cumbersome and inconvenient, seriously affecting the efficiency of the measurement work. They are not convenient to quickly clamp the tree for measurement, and cannot be quickly separated from the tree after measurement. Furthermore, they cannot be adjusted in height for measurement at different heights, which requires improvement. Therefore, we have proposed a portable tree DBH rapid detection device. Summary of the Invention

[0003] Purpose of the invention: The purpose of this invention is to provide a portable tree diameter at breast height (DBH) rapid detection device, which solves the problems of traditional measuring tools being cumbersome to operate, requiring fixation to trees to complete the measurement, having low measurement efficiency, and being inconvenient to quickly clamp and separate trees. This invention enables rapid clamping and measurement of tree DBH, and allows for height adjustment for measurement, thereby improving measurement efficiency and portability, and meeting the needs of forestry survey field operations.

[0004] Technical solution: A portable tree diameter at breast height (DBH) rapid detection device, including a moving mechanism, the top of which is provided with a lifting mechanism; A measuring mechanism is provided on the top of the lifting mechanism; A drive mechanism is provided on the right side of the measuring mechanism; The measuring mechanism includes a transverse seat, a cavity is provided on the right side of the interior of the transverse seat, a movable groove is provided on the left side of the rear surface of the transverse seat, a fixed clamping bar is fixedly connected to the left side of the interior of the movable groove, and a movable clamping bar is slidably connected to the right side of the interior of the movable groove. A piston block is slidably connected inside the cavity. A push rod is fixedly connected to the left side of the piston block. The left end of the push rod passes through the interior of the movable groove and is fixedly connected to the right side of the movable clamping bar. A spring is fixedly connected to the opposite side of the movable groove and the piston block, located outside the push rod.

[0005] Furthermore, the moving mechanism includes a base plate, and a plurality of casters are fixedly connected to the bottom of the base plate.

[0006] Furthermore, the lifting mechanism includes a lifting seat, the bottom of which is fixedly connected to the upper surface of the base plate, a lifting block is slidably connected inside the lifting seat, a threaded sleeve is rotatably installed at the bottom of the lifting seat via a rotating shaft, a screw is threaded on the inner side of the threaded sleeve, the bottom end of the screw is fixedly connected to the upper surface of the lifting block, and the top end of the screw is fixedly connected to the bottom of the transverse seat.

[0007] Furthermore, a bevel gear one is fixedly connected to the bottom of the threaded sleeve and outside the screw, and a bevel gear two is meshed with the outer wall of the bevel gear one. The left end of the central shaft of the bevel gear two extends through to the left side of the lifting seat and is fixedly connected to an mounting plate. A crank handle is fixedly connected to the lower left side of the mounting plate, and a sponge sleeve is provided on the outer wall of the crank handle.

[0008] Furthermore, the upper surface of the transverse seat is provided with scale lines, and the upper surface of the movable clamping bar is fixedly equipped with a scale pointer.

[0009] Furthermore, the drive mechanism includes a hydraulic bladder, the bottom of which is fixedly connected to the upper surface of the base plate, and a pedal fixedly connected to the top of the hydraulic bladder. The left front of the pedal is rotatably connected to the right side of the lifting seat via a pivot shaft. An air exchange pipe is fixedly connected between the hydraulic bladder and the cavity.

[0010] Furthermore, the upper surface of the pedal is provided with anti-slip texture.

[0011] Beneficial effects: The device is equipped with a moving mechanism, and the casters at the bottom of the base plate can drive the entire device to roll flexibly, making it easy for operators to push the device to quickly transfer between different locations in the forest without manual handling, effectively saving manpower. Moreover, it can be quickly positioned next to the target tree, greatly improving the convenience of forestry survey field operations and adapting to the complex working environment of the forest. The device is equipped with a lifting mechanism. By cranking the handle, a bevel gear transmission is driven, which in turn drives the threaded sleeve to rotate, realizing the up and down movement of the screw, thereby raising and lowering the entire measuring mechanism. This design allows for flexible adjustment of the height of the measuring mechanism according to the different tree diameter at breast height (DBH) measurement requirements, breaking the limitation of traditional measuring tools that cannot be adjusted in height. It can meet the measurement needs of DBH at different heights of various trees, making it more adaptable. The measuring mechanism, through the cooperation of fixed and movable clamping bars and the hydraulic transmission design of the drive mechanism, allows the operator to automatically clamp the tree by simply stepping on the pedal. This is achieved through hydraulic gas pushing the piston block and push rod, which in turn moves the movable clamping bar. No manual pushing is required, making the operation simple and quick. After the measurement is completed, releasing the pedal will reset the hydraulic bladder and allow the spring to return, causing the movable clamping bar to quickly return to its original position and separate from the tree. This completely solves the problems of traditional measuring tools that need to be fixed to the tree, are cumbersome to operate, and cannot separate quickly, significantly improving the efficiency of diameter at breast height (DBH) measurement. The measuring mechanism has scale lines on its horizontal seat and scale pointers on its movable clamping bar. When the fixed clamping bar and the movable clamping bar tightly clamp the tree, the diameter at breast height (DBH) value can be read directly by the correspondence between the scale pointer and the scale lines. The operation is simple and the reading is intuitive, which effectively reduces human reading errors, improves the accuracy of DBH measurement, and provides reliable data support for forest surveys. Attached Figure Description

[0012] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the rear view structure of the present invention; Figure 3 This is a side view of the structure of the present invention; Figure 4 This is a schematic diagram of the moving mechanism of the present invention; Figure 5 This is a schematic diagram of the internal connection between the lifting mechanism and the driving mechanism of the present invention; Figure 6 This is a schematic diagram of the internal rear view structure of the measuring mechanism of the present invention.

[0013] In the diagram: 1. Moving mechanism; 2. Lifting mechanism; 3. Measuring mechanism; 4. Drive mechanism; 101. Base plate; 102. Casters; 201. Lifting seat; 202. Lifting block; 203. Threaded sleeve; 204. Screw; 205. Bevel gear one; 206. Bevel gear two; 207. Mounting plate; 208. Crank handle; 209. Sponge sleeve; 301. Horizontal seat; 302. Cavity; 303. Movable groove; 304. Fixed clamping bar; 305. Movable clamping bar; 306. Piston block; 307. Push rod; 308. Spring; 309. Scale line; 310. Scale pointer; 401. Hydraulic bladder; 402. Pedal; 403. Air exchange pipe; 404. Anti-slip texture. Detailed Implementation

[0014] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] Example like Figures 1-4 As shown, a portable tree diameter at breast height (DBH) rapid detection device is provided, including a moving mechanism 1; The moving mechanism 1 includes a base plate 101, and a plurality of casters 102 are fixedly connected to the bottom of the base plate 101; When in use, push the entire device, and the universal wheels 102 will roll to move the base plate 101 and the entire device, enabling convenient transportation of the device to different locations in the forest. After moving to the target tree, stop pushing to complete the device positioning.

[0016] like Figure 5 As shown, a lifting mechanism 2 is provided on the top of the moving mechanism 1; The lifting mechanism 2 includes a lifting seat 201, the bottom of which is fixedly connected to the upper surface of the base plate 101. A lifting block 202 is slidably connected inside the lifting seat 201. A threaded sleeve 203 is rotatably installed on the bottom of the lifting seat 201 via a rotating shaft. A screw 204 is threaded on the inner side of the threaded sleeve 203. The bottom end of the screw 204 is fixedly connected to the upper surface of the lifting block 202, and the top end of the screw 204 is fixedly connected to the bottom of the transverse seat 301. A bevel gear 205 is fixedly connected to the bottom of the threaded sleeve 203 and to the outside of the screw 204. A bevel gear 206 is meshed with the outer wall of the bevel gear 205. The left end of the central shaft of the bevel gear 206 extends to the left side of the lifting seat 201 and is fixedly connected to the mounting plate 207. A crank handle 208 is fixedly connected to the lower left side of the mounting plate 207. A sponge sleeve 209 is fitted on the outer wall of the crank handle 208. By holding the crank handle 208 covered with a sponge sleeve 209 and rotating it, the second bevel gear 206 is rotated. The second bevel gear 206 drives the first bevel gear 205 to rotate synchronously through meshing connection, thereby driving the threaded sleeve 203 to rotate at the bottom of the lifting seat 201. When the threaded sleeve 203 rotates, the screw 204 threadedly connected to it moves upward or downward along the axial direction of the threaded sleeve 203, causing the lifting block 202 to slide synchronously inside the lifting seat 201. At the same time, the top of the screw 204 pushes the transverse seat 301 and the measuring mechanism 3 to move up and down as a whole, realizing the adjustment of the height of the measuring mechanism 3 and meeting the measurement needs of the diameter at breast height of trees of different heights.

[0017] like Figure 6 As shown, a measuring mechanism 3 is provided on the top of the lifting mechanism 2; The measuring mechanism 3 includes a transverse seat 301, a cavity 302 is provided on the right side of the interior of the transverse seat 301, and a movable groove 303 is provided on the left side of the rear surface of the transverse seat 301. A fixed clamping bar 304 is fixedly connected to the left side of the interior of the movable groove 303, and a movable clamping bar 305 is slidably connected to the right side of the interior of the movable groove 303. A piston block 306 is slidably connected inside the cavity 302. A push rod 307 is fixedly connected to the left side of the piston block 306. The left end of the push rod 307 passes through the interior of the movable groove 303 and is fixedly connected to the right side of the movable clamping bar 305. A spring 308 is fixedly connected to the opposite side of the movable groove 303 and the piston block 306 and to the outside of the push rod 307. The upper surface of the horizontal seat 301 is provided with scale lines 309, and the upper surface of the movable clamping bar 305 is fixedly installed with scale pointer 310; When measuring the diameter at breast height of a tree, first attach the fixed clamp 304 to one side of the tree, then control the movable clamp 305 to move to the left. At this time, the spring 308 is stretched, causing the tree to be inserted between the two. The push rod 307 drives the movable clamping bar 305 to move toward the fixed clamping bar 304 until the fixed clamping bar 304 and the movable clamping bar 305 are tightly clamped on the outer wall of the tree. At this point, the value corresponding to the scale line 309 on the horizontal seat 301 and the scale pointer 310 on the movable clamp 305 is the diameter at breast height (DBH) of the tree.

[0018] like Figure 5 As shown, a drive mechanism 4 is provided to the right of the measuring mechanism 3; The drive mechanism 4 includes a hydraulic bladder 401. The bottom of the hydraulic bladder 401 is fixedly connected to the upper surface of the base plate 101. A pedal 402 is fixedly connected to the top of the hydraulic bladder 401. The left front of the pedal 402 is rotatably connected to the right side of the lifting seat 201 via a rotating shaft. An air exchange pipe 403 is fixedly connected between the hydraulic bladder 401 and the cavity 302. The upper surface of the pedal 402 is provided with anti-slip texture 404; When it is necessary to drive the movable clamp 305 to move, step on the pedal 402 with anti-slip texture 404 with your foot. The pedal 402 rotates downward around the pivot axis, squeezing the hydraulic bladder 401, so that the hydraulic gas inside the hydraulic bladder 401 is transported to the cavity 302 through the air exchange pipe 403. Hydraulic gas pushes the piston block 306 to move to the right, which drives the push rod 307 and the movable clamping bar 305 to move synchronously, realizing the automatic clamping of the movable clamping bar 305 without manual pushing, thus improving the convenience of clamping operation. After the measurement is completed, release the pedal 402, the hydraulic bladder 401 resets, the hydraulic gas flows back into the hydraulic bladder 401, the spring 308 rebounds and pushes the piston block 306 to the left, so that the movable clamping bar 305 resets, completing the rapid separation from the tree.

[0019] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A portable rapid tree diameter at breast height (DBH) detection device, comprising a moving mechanism (1), characterized in that: The top of the moving mechanism (1) is provided with a lifting mechanism (2); A measuring mechanism (3) is provided on the top of the lifting mechanism (2); A drive mechanism (4) is provided on the right side of the measuring mechanism (3). The measuring mechanism (3) includes a transverse seat (301), a cavity (302) is provided on the right side of the interior of the transverse seat (301), a movable groove (303) is provided on the left side of the rear surface of the transverse seat (301), a fixed clamping bar (304) is fixedly connected to the left side of the interior of the movable groove (303), and a movable clamping bar (305) is slidably connected to the right side of the interior of the movable groove (303). A piston block (306) is slidably connected inside the cavity (302). A push rod (307) is fixedly connected to the left side of the piston block (306). The left end of the push rod (307) passes through the interior of the movable groove (303) and is fixedly connected to the right side of the movable clamping bar (305). A spring (308) is fixedly connected to the opposite side of the movable groove (303) and the piston block (306) and to the outside of the push rod (307).

2. The portable tree diameter at breast height (DBH) rapid detection device according to claim 1, characterized in that: The moving mechanism (1) includes a base plate (101), and a plurality of casters (102) are fixedly connected to the bottom of the base plate (101).

3. The portable tree diameter at breast height (DBH) rapid detection device according to claim 2, characterized in that: The lifting mechanism (2) includes a lifting seat (201), the bottom of which is fixedly connected to the upper surface of the base plate (101), a lifting block (202) is slidably connected inside the lifting seat (201), a threaded sleeve (203) is rotatably installed on the bottom of the lifting seat (201) via a rotating shaft, a screw (204) is threaded on the inner side of the threaded sleeve (203), the bottom end of the screw (204) is fixedly connected to the upper surface of the lifting block (202), and the top end of the screw (204) is fixedly connected to the bottom of the transverse seat (301).

4. The portable tree diameter at breast height (DBH) rapid detection device according to claim 3, characterized in that: A bevel gear one (205) is fixedly connected to the bottom of the threaded sleeve (203) and to the outside of the screw (204). A bevel gear two (206) is meshed with the outer wall of the bevel gear one (205). The left end of the central shaft of the bevel gear two (206) extends to the left side of the lifting seat (201) and is fixedly connected to an mounting plate (207). A crank handle (208) is fixedly connected to the lower left side of the mounting plate (207). A sponge sleeve (209) is fitted on the outer wall of the crank handle (208).

5. A portable tree diameter at breast height (DBH) rapid detection device according to claim 1, characterized in that: The upper surface of the transverse seat (301) is provided with scale lines (309), and the upper surface of the movable clamp (305) is fixedly installed with a scale pointer (310).

6. A portable tree diameter at breast height (DBH) rapid detection device according to claim 3, characterized in that: The drive mechanism (4) includes a hydraulic bladder (401), the bottom of which is fixedly connected to the upper surface of the base plate (101), and a pedal (402) is fixedly connected to the top of the hydraulic bladder (401). The left front of the pedal (402) is rotatably connected to the right side of the lifting seat (201) via a rotating shaft. A ventilation pipe (403) is fixedly connected between the hydraulic bladder (401) and the cavity (302).

7. A portable tree diameter at breast height (DBH) rapid detection device according to claim 6, characterized in that: The upper surface of the pedal (402) is provided with anti-slip texture (404).

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