Folding forestry investigation recording table

Abstract

The utility model discloses a folding forestry investigation recording table which comprises a movable frame, a connecting frame is rotatably arranged on one side of the movable frame, an adjusting device is arranged on one side of the movable frame, a bottom plate is arranged at the bottom ends of the movable frame and the connecting frame, and a supporting device is installed below the bottom plate. The supporting device comprises supporting rods, a supporting sleeve, a control sleeve, a movable block, a movable groove, a pushing sleeve and a movable plate, the multiple supporting rods penetrate through the inner side of the pushing sleeve, the movable block is connected to one side of the movable plate, the multiple movable grooves are formed in the inner side of the supporting sleeve, the pushing sleeve is connected with the control sleeve through threads, and a reinforcing mechanism is installed on the outer side of the supporting sleeve; the reinforcing mechanism comprises a control sleeve, a sliding sleeve, a matching rod, a fixing plate, a large gear, a small gear, a matching sleeve, an insertion groove and an insertion rod, the matching rod is connected to one side of the sliding sleeve, the problem that traditional angle adjustment is not flexible is solved, and the use stability and the adjustment convenience are remarkably improved through a reliable multi-point supporting system and a stable locking mechanism.

Description

Technical Field

[0001] This utility model relates to the technical field of forestry survey recording tables, and more specifically, to a folding forestry survey recording table. Background Technology

[0002] In the field of forestry survey recording stations, the flexibility of the recording station's angle, the stability of its support structure and support status are key factors affecting its effectiveness. However, the folding forestry survey recording stations currently on the market still have many technical defects in practical applications. These problems not only affect the efficiency of recording work, but may also reduce the accuracy of recorded data and the safety of use.

[0003] The primary problem is the significant lack of flexibility in adjusting the angle of the recording station. Existing angle adjustment methods have significant flaws: First, the unfolding angle of the recording station is often fixed and cannot be adjusted according to actual needs; second, the lack of an adjustment mechanism prevents the recording station from adjusting to the optimal angle for different lighting conditions. This deficiency in traditional design not only reduces recording efficiency but may also cause recording fatigue due to inappropriate angles, failing to meet the actual needs of modern forestry surveys.

[0004] More notably, the multi-point support structure has significant drawbacks. Existing support methods have significant stability issues: First, simple support structures cannot adapt to complex terrain conditions; second, single-point support is difficult to maintain balance on uneven ground, and unreasonable distribution of support points can cause the recording table to tilt easily. These shortcomings of traditional support methods not only affect the smooth progress of recording work, but may also lead to data distortion due to unstable support, reducing the accuracy of the survey work.

[0005] Most critically, the stability of the support structure is severely lacking. Although some devices have achieved multi-point support through structural improvements, this design still has obvious flaws: First, the simple support structure is difficult to withstand the continuous pressure during the recording process; second, vibration and shaking during use can cause the support point to shift; and third, structural loosening after long-term use will further reduce the stability of the support. This structural design deficiency not only affects the continuity of recording work, but may also cause the loss of recorded data due to the sudden failure of the support structure, thus reducing the reliability of the work. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the problems existing in the prior art, this utility model provides a foldable forestry survey recording table to solve the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a folding forestry survey and recording table, comprising a movable frame, a connecting frame rotatably mounted on one side of the movable frame, an adjustment device on one side of the movable frame, a base plate at the bottom of the movable frame and the connecting frame, a support device installed below the base plate, the support device comprising support rods, a support sleeve, a control sleeve, a movable block, a movable groove, a push sleeve, and a movable plate, multiple support rods slidingly passing through the inner side of the push sleeve, the support sleeve being fixedly installed below the base plate, the control sleeve being rotatably installed on the outer side of the support sleeve, the movable block being fixedly connected to one side of the movable plate, multiple movable grooves being formed on the inner side of the support sleeve, and the outer wall of the push sleeve being movably connected to the inner wall of the control sleeve via threads. The movable plate is slidably disposed in the movable groove, and both the movable plate and the movable groove are designed with an inclined structure. A reinforcing mechanism is installed on the outside of the support sleeve. The reinforcing mechanism includes a control sleeve, a sliding sleeve, a mating rod, a fixing plate, a large gear, a small gear, a mating sleeve, a slot, and a plug rod. The control sleeve is rotatably mounted on the outside of the support sleeve. The sliding sleeve is slidably disposed on the outside of the support sleeve. Multiple mating rods are fixedly connected to one side of the sliding sleeve. The fixing plate is fixedly mounted on the outside of the support sleeve. The large gear is fixedly connected to one side of the control sleeve. The small gear is fixedly mounted on the outside of the mating sleeve. The mating sleeve is movably connected to the mating rod through a thread. Multiple slots are opened on the outer wall of the support sleeve. Multiple plug rods are slidably mounted on the side wall of the control sleeve.

[0010] The present invention is further configured such that the adjustment device includes an adjustment bolt, an adjustment groove and an adjustment frame, the adjustment groove is formed on the connecting frame, one end of the adjustment frame is detachably connected to the movable frame, and one end of the adjustment bolt passes through the adjustment groove and is movably connected to the adjustment frame by threads.

[0011] The present invention is further configured such that a support plate is rotatably provided between the movable frame and the connecting frame, and multiple adjustment holes are symmetrically provided on both sides of the support plate and both sides of the movable frame. A support frame is detachably provided on the inner side of the movable frame, and both ends of the support frame are respectively inserted into the corresponding adjustment holes.

[0012] The present invention is further configured such that a limiting sleeve is fixedly provided inside the supporting sleeve, and a plurality of the supporting rods slide through the limiting sleeve.

[0013] The present invention is further configured such that a top plate is connected to the top end of the support rod, and a tension spring is movably sleeved on the outside of the support rod, with the two ends of the tension spring connected to a limiting sleeve and the top plate respectively.

[0014] The present invention is further configured such that a linkage block is fixedly provided on one side of the movable block, and a linkage groove is provided at the top of the push sleeve. The linkage block is slidably disposed in the linkage groove, and the cooperation between the linkage block and the linkage groove enables the position of the movable block to be precisely controlled.

[0015] The present invention is further configured such that multiple return springs are movably provided on the outer side of the control sleeve, and the outer end of the insertion rod is connected to the outer wall of the control sleeve through the return springs. The setting of the return springs ensures the accurate reset and locking effect of the insertion rod.

[0016] The present invention is further configured such that the end of the insertion rod and the edge of the inner wall of the slot are both designed with rounded corners, which ensures a smooth operation.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a foldable forestry survey recording table, which has the following beneficial effects:

[0019] 1. The adjustment device constructs a flexible angle adjustment system through the reasonable combination of components such as adjusting bolts, adjusting grooves, and adjusting frames. The design of the adjusting groove increases the flexibility of the adjustment range of the movable frame and connecting frame. The design of the support frame and adjusting holes enables multi-angle fixation of the support plate. This design not only allows the unfolding angle of the recording table to be flexibly adjusted according to actual needs, but also ensures the stability of the adjustment angle, effectively solving the problem of inflexibility of traditional angle adjustment methods.

[0020] 2. The support device, through the precise coordination of multiple components such as support rods, support sleeves, and push sleeves, constructs a reliable multi-point support system. The support rods inside the support sleeve, in conjunction with the tension spring design, achieve height self-adaptation. The inclined structure of the movable block and movable plate provides a flexible locking and limiting mechanism. The threaded connection of the control sleeve ensures the stable use of the equipment. This structure not only achieves multi-point support through multiple support rods, but also ensures stability on uneven ground through the elastic compensation of the tension springs, effectively solving the problem of single-point force in traditional support methods.

[0021] 3. The reinforcement mechanism constructs a stable locking system through the ingenious cooperation of components such as the control sleeve, sliding sleeve, and mating rod. The transmission design of the large gear and the small gear provides synchronous adjustment capability for the overall structure. The threaded connection between the mating sleeve and the mating rod enables precise control. The rounded corner design of the insertion rod and the slot ensures a smooth transition. This structure provides a reliable fixing effect through the locking mechanism, effectively solving the problem of instability in traditional locking structures. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a foldable forestry survey and recording station according to the present invention;

[0023] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0024] Figure 3This is a structural schematic diagram of the support device and reinforcement mechanism in this utility model;

[0025] Figure 4 This is a cross-sectional structural diagram of the support device and reinforcement mechanism in this utility model;

[0026] Figure 5 This is a cross-sectional view of the support sleeve and movable block in this utility model.

[0027] Figure 6 This is a structural schematic diagram of the control sleeve and the push sleeve in this utility model.

[0028] In the diagram: 1. Movable frame; 2. Connecting frame; 3. Base plate; 4. Support rod; 5. Support sleeve; 6. Control sleeve; 7. Movable block; 8. Movable groove; 9. Push sleeve; 10. Movable plate; 11. Control sleeve; 12. Sliding sleeve; 13. Matching rod; 14. Fixed plate; 15. Large gear; 16. Small gear; 17. Matching sleeve; 18. Slot; 19. Insert rod; 20. Adjusting bolt; 21. Adjusting groove; 22. Adjusting frame; 23. Support plate; 24. Adjusting hole; 25. Support frame; 26. Limit sleeve; 27. Top plate; 28. Tension spring; 29. ​​Linkage block; 30. Linkage groove; 31. Return spring. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0031] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0032] Please see Figures 1-6A folding forestry survey recording table includes a movable frame 1, a connecting frame 2 rotatably mounted on one side of the movable frame 1, an adjustment device on one side of the movable frame 1, a base plate 3 at the bottom of the movable frame 1 and the connecting frame 2, and a support device installed below the base plate 3. The support device includes support rods 4, support sleeves 5, control sleeves 6, movable blocks 7, movable grooves 8, a push sleeve 9, and a movable plate 10. Multiple support rods 4 slide through the inner side of the push sleeve 9. The support sleeve 5 is fixedly installed below the base plate 3. The control sleeve 6 is rotatably mounted on the outer side of the support sleeve 5. The movable block 7 is fixedly connected to one side of the movable plate 10. Multiple movable grooves 8 are formed inside the support sleeve 5. The outer wall of the push sleeve 9 is movably connected to the inner wall of the control sleeve 6 via threads. The movable plate 10 is slidably disposed in the movable grooves 8. Both 0 and the movable slot 8 are designed with an inclined structure. A reinforcing mechanism is installed on the outside of the support sleeve 5. The reinforcing mechanism includes a control sleeve 11, a sliding sleeve 12, a mating rod 13, a fixing plate 14, a large gear 15, a small gear 16, a mating sleeve 17, a slot 18, and a plug rod 19. The control sleeve 11 is rotatably installed on the outside of the support sleeve 5, the sliding sleeve 12 is slidably installed on the outside of the support sleeve 5, multiple mating rods 13 are fixedly connected to one side of the sliding sleeve 12, the fixing plate 14 is fixedly installed on the outside of the support sleeve 5, the large gear 15 is fixedly connected to one side of the control sleeve 11, the small gear 16 is fixedly installed on the outside of the mating sleeve 17, the mating sleeve 17 is movably connected to the mating rod 13 by threads, multiple slots 18 are opened on the outer wall of the support sleeve 5, and multiple plug rods 19 are slidably installed on the side wall of the control sleeve 6.

[0033] The adjustment device includes an adjustment bolt 20, an adjustment groove 21, and an adjustment frame 22. The adjustment groove 21 is formed on the connecting frame 2. One end of the adjustment frame 22 is detachably connected to the movable frame 1. One end of the adjustment bolt 20 passes through the adjustment groove 21 and is movably connected to the adjustment frame 22 by threads.

[0034] A support plate 23 is rotatably provided between the movable frame 1 and the connecting frame 2. Multiple adjustment holes 24 are symmetrically opened on both sides of the support plate 23 and both sides of the movable frame 1. A support frame 25 is detachably provided on the inner side of the movable frame 1. Both ends of the support frame 25 are inserted into the corresponding adjustment holes 24.

[0035] In this embodiment, when the device is needed, first rotate the adjusting bolt 20 forward so that the adjusting bolt 20 and the adjusting frame 22 no longer clamp the side wall of the connecting frame 2. Then, pry the movable frame 1 and the connecting frame 2 apart to both sides, and the adjusting bolt 20 will slide along the adjusting groove 21. At the same time, one end of the adjusting frame 22 will move with the adjusting bolt 20. When it is pried open to a suitable angle, rotate the adjusting bolt 20 in the opposite direction so that the adjusting bolt 20 and the adjusting frame 22 clamp the side wall of the connecting frame 2 again, thereby fixing the connecting frame 2 and the movable frame 1 relatively. Then, rotate the support plate 23 outward so that the support plate 23 rotates out from the inside of the movable frame 1. When it rotates out to a suitable angle, the two ends of the support frame 25 can be inserted into the corresponding adjusting holes 24. Then, place the device on the ground, and then lay paper or notebooks on the support plate 23 to facilitate the investigation and recording of the internal conditions of the forest.

[0036] Please see Figures 3-6 As a further implementation of the overall equipment: a limiting sleeve 26 is fixedly provided inside the support sleeve 5, and multiple support rods 4 slide through the limiting sleeve 26.

[0037] The top of the support rod 4 is connected to a top plate 27, and a tension spring 28 is movably sleeved on the outside of the support rod 4. The two ends of the tension spring 28 are connected to the limiting sleeve 26 and the top plate 27, respectively.

[0038] A linkage block 29 is fixedly provided on one side of the movable block 7, and a linkage groove 30 is provided at the top of the push sleeve 9. The linkage block 29 is slidably disposed in the linkage groove 30.

[0039] Multiple return springs 31 are movably provided on the outer side of the control sleeve 6, and the outer end of the insertion rod 19 is connected to the outer wall of the control sleeve 6 through the return springs 31.

[0040] Both the end of the insertion rod 19 and the inner edge of the slot 18 are designed with rounded corners.

[0041] More specifically, when the device needs to be stably placed on the ground, firstly, rotate the control sleeve 11 forward, causing the control sleeve 11 to drive the large gear 15 installed on one side to rotate forward. Then, the large gear 15 will drive the various meshing small gears 16 to rotate synchronously. Then, the small gears 16 will drive the driven wheel to rotate synchronously. Then, the driven wheel will drive the mating sleeve 17 to rotate on the fixed plate 14. Since the mating sleeve 17 is threadedly fitted onto the outside of the mating rod 13, and there are multiple mating rods 13, the mating rod 13 cannot rotate. Then, the mating rod 13 will drive the sliding sleeve 12 to slide. Then, the sliding sleeve 12 will no longer limit the outside of the insertion rod 19. Then, rotate the control sleeve 6 forward, and the control sleeve 6 will drive the multiple sliding sleeves on the side wall to rotate. As the insertion rod 19 moves, the inner wall of the slot 18 presses against one end of the insertion rod 19. Due to the rounded corner design at the end of the insertion rod 19 and the edge of the inner wall of the slot 18, one end of the insertion rod 19 slides out of the slot 18, and the other end of the insertion rod 19 pulls the return spring 31 to stretch. At the same time, since the inner wall of the control sleeve 6 is movably connected to the outer wall of the push sleeve 9 through threads, the rotation of the control sleeve 6 will cause the push sleeve 9 to slide. Then, the push sleeve 9 will drive the movable block 7 to move downward through the linkage block 29 and the linkage groove 30. Then, the movable block 7 will drive the movable plate 10 to slide along the movable groove 8. Since both the movable groove 8 and the movable plate 10 are inclined structures, when the movable plate 10 slides along the movable groove 8, the movable plate 10 will drive the movable block 7 to move outward. The movable block 7 will drive the linkage block 29 on one side to slide along the linkage groove 30. Then, the inner wall of the movable block 7 will no longer press against the outer wall of the support rod 4. Then, the equipment will move downward and press the base plate 3 downward. Then, the bottom end of some of the support rods 4 will first contact the ground. Due to the unevenness of the ground, some support rods 4 will be suspended. Then, the base plate 3 will continue to be pressed, so that the bottom end of all the support rods 4 will contact the ground. Some of the support rods 4 will slide relative to the limiting sleeve 26 and the push sleeve 9. The top plate 27 at the top will drive the tension spring 28 on the outer side to be stretched to different degrees. When the bottom end of all the support rods 4 contacts the ground, the control sleeve 6 will be rotated in the opposite direction, so that the control sleeve 6 will drive the insertion rod 19 to rotate and reset. The push sleeve 9 will produce The reverse sliding reset occurs, and then the push sleeve 9 pushes the movable block 7 upward to slide back to its original position. The movable block 7 then drives the movable plate 10 to slide back to its original position along the movable groove 8. The movable plate 10 then drives the movable block 7 to converge inwards, causing the inner wall of the movable block 7 to re-press against the outer wall of the support rod 4. Simultaneously, the movable block 7 drives the linkage block 29 to slide along the linkage groove 30. At this time, the reset spring 31 just causes the insertion rod 19 to slide back to its original position and insert into the original slot 18. Then, the control sleeve 11 rotates in the reverse direction, causing the control sleeve 11 to drive the mating sleeve 17 to rotate in the reverse direction on the fixed plate 14 through the cooperation of the large gear 15 and the small gear 16. Then, the mating rod 13 drives the sliding sleeve 12 to slide back to its original position, causing the inner wall of the sliding sleeve 12 to again limit the outer end of the insertion rod 19.This allows the insertion rod 19 and the slot 18 to engage and lock the control sleeve 6, preventing it from rotating and ensuring the stability of the device, thus providing stable support for the equipment.

[0042] In summary, when using or operating the equipment: First, rotate the adjusting bolt 20 forward so that the adjusting bolt 20 and the adjusting frame 22 no longer clamp the side wall of the connecting frame 2. Then, pry the movable frame 1 and the connecting frame 2 apart to both sides, and the adjusting bolt 20 will slide along the adjusting groove 21. At the same time, one end of the adjusting frame 22 will move with the adjusting bolt 20. After prying to a suitable angle, rotate the adjusting bolt 20 in the opposite direction so that the adjusting bolt 20 and the adjusting frame 22 clamp the side wall of the connecting frame 2 again, thereby fixing the connecting frame 2 and the movable frame 1 relatively. Then, rotate the support plate 23 outward so that the support plate 23 rotates out from the inside of the movable frame 1. After rotating out to a suitable angle, insert both ends of the support frame 25 into the corresponding adjusting holes 24. Then, place the equipment on the ground, and then lay paper or a notebook on the support plate 23 to facilitate the investigation and recording of the internal conditions of the forest.

[0043] When the device needs to be stably placed on the ground, first rotate the control sleeve 11 forward, causing the control sleeve 11 to drive the large gear 15 installed on one side to rotate forward. Then, the large gear 15 will drive the various meshing small gears 16 to rotate synchronously. Then, the small gears 16 will drive the driven wheel to rotate synchronously. Then, the driven wheel will drive the mating sleeve 17 to rotate on the fixed plate 14. Since the mating sleeve 17 is threadedly fitted onto the outside of the mating rod 13, and there are multiple mating rods 13, the mating rod 13 cannot rotate. Then, the mating rod 13 will drive the sliding sleeve 12 to slide. Then, the sliding sleeve 12 will no longer limit the outer side of the insertion rod 19. Then, rotate the control sleeve 6 forward, and the control sleeve 6 will drive the multiple insertion rods 19 that are slidably set on the side wall. 9. Move, and then the inner wall of the slot 18 presses against one end of the insertion rod 19. Due to the rounded corner design at the end of the insertion rod 19 and the edge of the inner wall of the slot 18, one end of the insertion rod 19 will slide out of the slot 18, and the other end of the insertion rod 19 will drive the return spring 31 to stretch. At the same time, since the inner wall of the control sleeve 6 is movably connected to the outer wall of the push sleeve 9 through the thread, the rotation of the control sleeve 6 will drive the push sleeve 9 to slide. Then, the push sleeve 9 will drive the movable block 7 to move downward through the linkage block 29 and the linkage groove 30. Then, the movable block 7 will drive the movable plate 10 to slide along the movable groove 8. Since the movable groove 8 and the movable plate 10 are both inclined structure designs, when the movable plate 10 slides along the movable groove 8, the movable plate 10 will drive the movable block 7 to move outward, and the movable plate 10 will move downward through the linkage block 29 and the linkage groove 30. The moving block 7 will drive the linkage block 29 on one side to slide along the linkage groove 30. Then, the inner wall of the moving block 7 will no longer press against the outer wall of the support rod 4. Then, the equipment will move downward and press the base plate 3 downward. Then, the bottom end of some of the support rods 4 will first contact the ground. Due to the unevenness of the ground, some support rods 4 will be suspended. Then, the base plate 3 will continue to be pressed, so that the bottom end of all the support rods 4 will contact the ground. Some of the support rods 4 will slide relative to the limiting sleeve 26 and the push sleeve 9. The top plate 27 at the top will drive the tension spring 28 on the outer side to stretch to different degrees. When the bottom end of all the support rods 4 contacts the ground, the control sleeve 6 will rotate in the opposite direction, so that the control sleeve 6 will drive the insertion rod 19 to rotate and reset. The push sleeve 9 will generate The sliding reset occurs in the reverse direction. Then, the push sleeve 9 pushes the movable block 7 upwards to reset. The movable block 7 then drives the movable plate 10 to slide along the movable groove 8 to reset. The movable plate 10 then drives the movable block 7 to converge inwards, causing the inner wall of the movable block 7 to re-press against the outer wall of the support rod 4. Simultaneously, the movable block 7 drives the linkage block 29 to slide along the linkage groove 30. At this time, the reset spring 31 just causes the insertion rod 19 to slide back into its original slot 18. Then, the control sleeve 11 rotates in the reverse direction, causing the control sleeve 11 to drive the mating sleeve 17 to rotate in the reverse direction on the fixed plate 14 through the engagement of the large gear 15 and the small gear 16. Then, the mating rod 13 drives the sliding sleeve 12 to slide back to reset, causing the inner wall of the sliding sleeve 12 to again limit the outer end of the insertion rod 19.This allows the insertion rod 19 and the slot 18 to engage and lock the control sleeve 6, preventing it from rotating and ensuring the stability of the device, thus providing stable support for the equipment.

[0044] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A folding forestry survey recording table, comprising a movable frame (1), wherein a connecting frame (2) is rotatably provided on one side of the movable frame (1), characterized in that: An adjustment device is provided on one side of the movable frame (1). The bottom of the movable frame (1) and the connecting frame (2) is provided with a base plate (3). A support device is installed below the base plate (3). The support device includes a support rod (4), a support sleeve (5), a control sleeve (6), a movable block (7), a movable groove (8), a push sleeve (9), and a movable plate (10). Multiple support rods (4) pass through the inside of the push sleeve (9). The movable block (7) is connected to one side of the movable plate (10). Multiple movable grooves (8) are opened inside the support sleeve (5). The push sleeve (9) is connected to the control sleeve (6) by threads. A reinforcement mechanism is installed on the outside of the support sleeve (5). The fixing mechanism includes a control sleeve (11), a sliding sleeve (12), a mating rod (13), a fixing plate (14), a large gear (15), a small gear (16), a mating sleeve (17), a slot (18), and a plug rod (19). The mating rod (13) is connected to one side of the sliding sleeve (12), the fixing plate (14) is installed on the outside of the support sleeve (5), the large gear (15) is connected to one side of the control sleeve (11), the small gear (16) is installed on the outside of the mating sleeve (17), the mating sleeve (17) is connected to the mating rod (13) by threads, the slot (18) is opened on the outer wall of the support sleeve (5), and the plug rod (19) is installed on the side wall of the control sleeve (6).

2. The folding forestry survey recording station according to claim 1, characterized in that: The adjustment device includes an adjustment bolt (20), an adjustment groove (21), and an adjustment frame (22). The adjustment groove (21) is opened on the connecting frame (2). One end of the adjustment frame (22) is detachably connected to the movable frame (1). One end of the adjustment bolt (20) passes through the adjustment groove (21) and is movably connected to the adjustment frame (22) by threads.

3. A folding forestry survey recording station according to claim 2, characterized in that: A support plate (23) is rotatably provided between the movable frame (1) and the connecting frame (2). Multiple adjustment holes (24) are symmetrically provided on both sides of the support plate (23) and both sides of the movable frame (1). A support frame (25) is detachably provided on the inner side of the movable frame (1). Both ends of the support frame (25) are inserted into the corresponding adjustment holes (24).

4. A folding forestry survey recording station according to any one of claims 1-3, characterized in that: A limiting sleeve (26) is fixed inside the support sleeve (5), and multiple support rods (4) slide through the limiting sleeve (26).

5. A folding forestry survey recording station according to claim 4, characterized in that: The top of the support rod (4) is connected to a top plate (27), and a tension spring (28) is movably sleeved on the outside of the support rod (4). The two ends of the tension spring (28) are connected to the limiting sleeve (26) and the top plate (27) respectively.

6. A folding forestry survey recording station according to claim 5, characterized in that: A linkage block (29) is fixedly provided on one side of the movable block (7), and a linkage groove (30) is provided at the top of the push sleeve (9). The linkage block (29) is slidably disposed in the linkage groove (30).

7. A folding forestry survey recording station according to claim 1, characterized in that: Multiple return springs (31) are movably provided on the outer side of the control sleeve (6), and the outer end of the insertion rod (19) is connected to the outer wall of the control sleeve (6) through the return springs (31).

8. A folding forestry survey recording station according to claim 7, characterized in that: The end of the insertion rod (19) and the inner edge of the slot (18) are both designed with rounded corners.

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