A field surveying support for forestry investigation
By designing a mechanical linkage that includes a base, legs, support plates, and handrails, the problem of insufficient stability and portability of traditional tripods in forestry surveys has been solved. Height compensation and terrain adaptation have been achieved, enhancing the stability and portability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GANSU LIANHUASHAN NAT NATURE RESERVE MANAGEMENT CENT
- Filing Date
- 2026-03-11
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional tripods require three legs to be extended to an excessive angle after being set up, which reduces the distance between the mounting base and the ground, increases the load, and results in poor flexibility and portability. Furthermore, they lack stability on uneven ground.
The design includes a base, legs, support plate, handrail, operating mechanism, lifting mechanism, sliding mechanism, support mechanism and retraction mechanism. The height compensation of the mounting base is achieved through mechanical linkage, which increases portability and stability. Rubber auxiliary wheels are used to adapt to different terrains.
It balances shooting height and stability, reduces the frequency of using additional parts, increases portability, adapts to various terrains, and prevents tipping.
Smart Images
Figure CN122107245A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of surveying support equipment technology, specifically to a field surveying support for forestry surveys. Background Technology
[0002] Forestry survey and mapping equipment refers to professional instruments and tools used to measure and collect data related to forest resources. They are widely used in forestry resource surveys, forestry monitoring, land surveying, ecological research and other fields. These devices usually integrate multiple technologies, such as laser ranging, global positioning system, electronic compass, etc., to achieve efficient and accurate measurement of parameters such as tree height, diameter at breast height, crown width, and stand density.
[0003] Forestry surveying equipment is typically used in conjunction with tripods to ensure the stability, accuracy, and operational efficiency of the measurement process, adapting to the complex and ever-changing field environment. Existing surveying tripods are usually composed of foldable tripods. When unfolded, these tripods form a stable triangular structure at the bottom, ensuring stable operation of the equipment mounted on the top mount. However, these traditional tripods still have the following key drawbacks: 1. The overall height decreases after being extended: Traditional tripods require the three legs to be extended to a large angle to ensure stability after being extended. When the three legs are extended to a large angle, the distance between the top mounting base and the ground decreases. When it is necessary to raise the shooting height, additional equipment is required to compensate for the support, which is quite cumbersome.
[0004] 2. Poor portability: Due to the vast area of forests, surveying equipment is not only used in one fixed location, but also needs to be used flexibly over a wide area. This undoubtedly places high demands on the mobility of the tripod. Traditional tripods are mostly handheld when moving around a large area in the forest, which increases the load and makes them less flexible and portable.
[0005] 3. Poor terrain adaptability: Due to the uneven forest ground, traditional tripods, after being unfolded, are only supported by the bottom of the three legs. When encountering roads with a certain slope or too much debris, the bottom of the legs may collapse or shift, reducing the stability of the equipment.
[0006] To address the aforementioned issues, a field mapping support for forestry surveys is proposed. Summary of the Invention
[0007] To address the aforementioned problems, this invention provides a field surveying support for forestry surveys. It solves the issue that traditional tripods, when unfolded, require the three legs to be extended to excessive angles to ensure stability. When the three legs are extended too far, the distance between the top mounting base and the ground decreases, necessitating additional equipment to compensate for the increased shooting height. Furthermore, traditional tripods are mostly handheld when moving extensively within forests, increasing the carrying load and reducing flexibility and portability. Additionally, due to the uneven forest ground, traditional tripods, supported only by the bottom of the three legs after unfolding, are prone to leg collapse or displacement when encountering slopes or areas with excessive debris, reducing equipment stability.
[0008] The technical solution adopted in this invention includes a base, legs, support plate, handrail, mounting base, operating mechanism, lifting mechanism, sliding mechanism, support mechanism, and retraction mechanism. The upper end of the base is provided with several support plates, and the lower outer ends of the several support plates are provided with support legs. Several of the support plates are driven to slide by a sliding mechanism, and several of the support legs are driven to slide by a support mechanism. The support mechanism is driven to work by the sliding mechanism. A mounting base is movably provided above the base, and a surveying device is detachably mounted on the upper end of the mounting base. The mounting base is driven to move by a lifting mechanism. An operating mechanism is provided on the upper front side of the base, and the sliding mechanism is driven by the operating mechanism. The lifting mechanism is driven by the operating mechanism. Two handrails are provided on one side of the operating mechanism. Both handrails are driven to move by a retraction mechanism, which is driven by the lifting mechanism.
[0009] Furthermore, the base is a regular hexagonal base, and the upper end of the regular hexagonal base is provided with three sliding grooves at equal angles. The inner ends of the three sliding grooves are connected to each other, and the outer ends of the three sliding grooves are respectively connected to the outer wall of the regular hexagonal base that is close to them. The number of the aforementioned support plates is three, and the three support plates are slidably connected through each other to the adjacent sliding groove.
[0010] Furthermore, the sliding mechanism includes an outer barrel, a first through groove, a lifting barrel, a first connecting frame, a second connecting frame, and a first connecting rod; The upper end of the regular hexagonal base is provided with an outer barrel, and the lower end of the outer barrel is located in the connecting part of the three sliding grooves; A lifting bucket is slidably provided inside the outer bucket. Three first connecting frames are provided at equal angles on the outer wall of the lifting bucket via three first fixed shafts. Three first through slots are provided at equal angles on the outer wall of the outer bucket. The three first fixed shafts are slidably connected to the first through slots adjacent to them. The three first connecting frames are respectively provided on the outer side of the outer bucket. Each of the three first connecting frames has a first end of a first connecting rod rotatably mounted inside it. The upper outer ends of the three support plates are respectively provided with second connecting frames, and the second ends of the three first connecting rods are respectively rotatably disposed in the second connecting frames close to them; The lifting bucket is driven to slide by the operating mechanism; The three support plates are respectively driven by sliding to operate the support mechanism.
[0011] Furthermore, the support mechanism includes a guide rod, a mounting block, a vertical plate, and a second connecting rod; Two guide rods are slidably provided through the outer ends of the three support plates. The two guide rods on the same side are respectively movably provided on the outer sides of the second connecting frame that are close to them. The upper ends of the two adjacent guide rods on the same side are respectively provided with the same mounting block. The three support legs are respectively fixedly provided at the lower ends of the two guide rods that are close to them. Each of the three mounting blocks has a second fixed shaft on both sides, and the first end of the second connecting rod is rotatably sleeved on the outer wall of each of the six second fixed shafts; Vertical plates are provided on the upper part of the outer walls of the three slides, and third fixed shafts are provided on the outer walls of the six vertical plates. The second ends of the six second connecting rods are respectively rotatably sleeved on the outer walls of the third fixed shafts that are close to them.
[0012] Furthermore, each of the three legs is provided with a wheel frame at its lower end, and each of the three wheel frames is provided with a plurality of rubber auxiliary wheels that rotate within it.
[0013] Furthermore, the operating mechanism includes a crank handle, a first bevel gear, a second bevel gear, a first threaded rod, and an L-shaped mounting plate; The lifting bucket is threaded through by a first threaded rod, and the upper end of the first threaded rod is rotatably inserted through the top wall of the outer bucket and fixed with a second bevel gear. The rear side of the second bevel gear is engaged with the first bevel gear. The outer barrel has an L-shaped mounting plate fixedly mounted on its rear top wall. A rocker arm is rotatably mounted on the rear wall of the vertical plate of the L-shaped mounting plate. The output end of the rocker arm rotatably passes through the vertical plate of the L-shaped mounting plate and is fixedly connected to the first bevel gear. The mounting base is movably disposed above the first bevel gear; The first threaded rod drives the lifting mechanism to work by rotating.
[0014] Furthermore, the lifting mechanism includes an external threaded barrel, a second threaded rod, a first spur gear, and a second spur gear; The lower end of the first threaded rod is rotatably connected to the regular hexagonal base and fixed with a first spur gear; Three second spur gears are respectively provided at equal angles on the outer side of the first spur gear, and the three second spur gears are respectively rotatably disposed at the lower end of the regular hexagonal base through the second threaded rod; The upper ends of the three second threaded rods are respectively rotatably connected to the regular hexagonal base, and the three second threaded rods are respectively located on the outer side of the two adjacent vertical plates; The lower end of the mounting base is provided with three external threaded barrels at equal angles, and the three external threaded barrels are respectively threaded onto the outer wall of the second threaded rod that is close to it; One of the externally threaded barrels operates by sliding to drive the take-up and release mechanism.
[0015] Furthermore, the retracting mechanism includes a vertical mounting plate, a second through slot, a third connecting rod, a third through slot, a sliding block, and a convex shaft; One of the external threaded barrels has a first end of a drive shaft fixedly mounted on the lower outer wall. A vertical mounting plate is fixedly mounted on the upper part of the outer wall of the regular hexagonal base close to the drive shaft. A second through groove is provided on the vertical mounting plate. The second end of the drive shaft and the second through groove are slidably connected through each other. The second end of the drive shaft is provided with a sliding block, which is slidably mounted on the outer wall of the vertical mounting plate. Both ends of the sliding block are respectively provided with convex shafts. The lower sides of the vertical mounting plate are respectively provided with fourth fixed shafts, and the first ends of third connecting rods are respectively rotatably sleeved on the outer walls of the two fourth fixed shafts. The two third connecting rods are respectively provided with third through grooves. The two protruding shafts are respectively slidably connected through the third through groove adjacent to them; The two handrails are respectively fixed on the outer wall of the second end of the third connecting rod that is close to them.
[0016] Furthermore, the lower end of the regular hexagonal base is provided with a support barrel, and the first spur gear and the three second spur gears are all movably disposed inside the support barrel; The lower end of the support barrel is rotatably provided with a first end of a rotating shaft, and the outer wall of the second end of the rotating shaft is provided with three mounting shafts at equal angles, and the outer ends of the three mounting shafts are respectively rotatably provided with mountain wheels.
[0017] Compared with the prior art, the present invention provides a field mapping support for forestry surveys, which has the following beneficial effects: 1. Balancing stability and shooting height This equipment achieves height compensation for the mounting base during the equipment deployment and support process through the mechanical linkage between the lifting mechanism, sliding mechanism and support mechanism, taking into account both shooting height and stability, and reducing the frequency of using additional parts.
[0018] 2. Portability is greatly increased The mountain wheels at the bottom of this equipment, when folded and with the handlebars unfolded, facilitate movement in forest areas, avoiding the need to hold the equipment by hand and reducing the burden on workers.
[0019] 3. Terrain adaptability is greatly increased. This equipment abandons the traditional tripod method of supporting the ground. It uses the principle of mutual limiting of three equally angled rubber auxiliary wheels and the friction between the rubber auxiliary wheels and the ground to achieve adaptability to most terrains, especially on sloping terrain, where it has an anti-tipping effect.
[0020] In addition to the objectives, features and advantages described above, the present invention has other objectives, features and advantages, which will be further described in detail below with reference to the figures. Attached Figure Description
[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.
[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram illustrating the working principle of the operating mechanism of the present invention; Figure 3 This is a schematic diagram showing the installation of the base and outer barrel of the present invention; Figure 4 This is a schematic diagram illustrating the working principle of the support mechanism of the present invention; Figure 5 This is a side view of the overall structure of the present invention; Figure 6 This is a schematic diagram showing the installation position of the operating mechanism of the present invention; Figure 7 This is a schematic diagram illustrating the working principle of the take-up and release mechanism of the present invention; Figure 8 This is a schematic diagram of the overall structure of the launching and retracting mechanism of the present invention; Figure 9 This is a schematic diagram of the bottom structure of the present invention; Figure 10 This is a schematic diagram of two working states of the present invention.
[0023] Figure label: 1 is the base, 2 is the second connecting rod, 3 is the mounting block, 4 is the guide rod, 5 is the support leg, 6 is the first connecting rod, 7 is the external threaded barrel, 8 is the second threaded rod, 9 is the support plate, 10 is the mounting seat, 11 is the handrail, 12 is the third connecting rod, 13 is the outer barrel, 14 is the first bevel gear, 15 is the second bevel gear, 16 is the crank handle, 17 is the L-shaped mounting plate, 18 is the vertical plate, 19 is the vertical mounting plate, 20 is the rubber auxiliary wheel, 21 is the sliding block, 22 is the support barrel, 23 is the mountain wheel, 24 is the rotating shaft, 25 is the lifting barrel, 26 is the first connecting frame, 27 is the first threaded rod, 28 is the first spur gear, and 29 is the second spur gear; 101 is a groove; 901 is the second connecting frame; 1201 is the third through slot; 1301 is the first through slot; 1901 is the second through slot; 2101 is a convex shaft. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the invention.
[0025] In the description of the invention, 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 the invention 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 limiting the invention.
[0026] refer to Figures 1 to 10 A field surveying support for forestry surveys includes a base 1, legs 5, support plate 9, handrail 11, mounting base 10, operating mechanism, lifting mechanism, sliding mechanism, support mechanism, and retraction mechanism. Several support plates 9 are slidably installed on the upper end of the base 1, and support legs 5 are movably installed on the lower outer ends of the support plates 9. The base 1 is the core support component of this equipment. The support plates 9 can slide out of the base 1 with the support legs 5 under the drive of the sliding mechanism described later, thereby increasing the support area. Several support plates 9 are driven to slide by a sliding mechanism, and several support legs 5 are driven to slide by a support mechanism. The support mechanism is driven to work by the sliding mechanism. As the support plates 9 slide out of the base 1, the support legs 5 will slide downward to support the base 1. A mounting base 10 is movably installed on the top of the base 1. A surveying device is detachably installed on the upper end of the mounting base 10. The mounting base 10 is driven to move by a lifting mechanism. The mounting base 10 is used to install the surveying device. A fixing module is integrated on its upper end for fixing the surveying device. The fixing module is existing technology, and its fixing method is not uniform. It will not be described in detail here. Just select a fixing module that matches the surveying device. An operating mechanism is installed on the upper front side of the base 1. The sliding mechanism is driven by the operating mechanism. The operating mechanism is the main module that drives the device to change its form. The lifting mechanism is driven by the operating mechanism. Two handrails 11 are installed on one side of the operating mechanism. Both handrails 11 are driven to move by a retraction mechanism, which is driven by a lifting mechanism. When the equipment is in a motorized state, the two handrails 11 are in an extended state, making it convenient for users to hold and push. When the equipment is in a supported state, they are retracted to reduce the floor space occupied.
[0027] The base 1 is a regular hexagonal base. The upper end of the regular hexagonal base is provided with three sliding grooves 101 at equal angles. The inner ends of the three sliding grooves 101 are connected to each other, and the outer ends of the three sliding grooves 101 are connected to the outer wall of the regular hexagonal base that is close to them. The number of support plates 9 is three. The three support plates 9 are slidably connected to the adjacent slide grooves 101. The regular hexagonal base is conducive to the layout of the three slide grooves 101, so that the three slide grooves 101 are set at a fixed angle to each other, and the three support plates 9 can be distributed in an isosceles triangle when sliding out of the slide grooves 101, which enhances stability.
[0028] The sliding mechanism includes an outer barrel 13, a first through groove 1301, a lifting barrel 25, a first connecting frame 26, a second connecting frame 901, and a first connecting rod 6; An outer barrel 13 is installed at the upper end of a regular hexagonal base, and the lower end of the outer barrel 13 is installed in the connecting part of three sliding grooves 101. A lifting bucket 25 is slidably installed inside the outer bucket 13. Three first connecting brackets 26 are installed at equal angles on the outer wall of the lifting bucket 25 via three first fixed shafts. Three first through slots 1301 are provided at equal angles on the outer wall of the outer bucket 13. The three first fixed shafts are slidably connected to the first through slots 1301 that are close to them. The three first connecting brackets 26 are installed on the outer side of the outer bucket 13. The first end of the first connecting rod 6 is rotatably installed in each of the three first connecting frames 26; The upper outer ends of the three support plates 9 are respectively equipped with second connecting frames 901, and the second ends of the three first connecting rods 6 are respectively rotatably installed in the second connecting frames 901 that are close to them. The lifting bucket 25 is driven to slide by the operating mechanism; The three support plates 9 operate via sliding drive mechanisms. When the lifting bucket 25 is driven by the operating mechanism, it slides up and down along the inside of the outer bucket 13. When the lifting bucket 25 slides down from top to bottom, reference... Figure 1 The three first connecting frames 26 slide down synchronously, and each of them drives the three first connecting rods 6 to start deflecting downward. During the downward deflection, the three first connecting rods 6 push the three second connecting frames 901 to slide outward. The support plate 9, which is fixedly installed with the three second connecting frames 901, can then slide outward along the sliding groove 101 that it cooperates with, and finally slide out of the regular hexagonal base with the support leg 5 that is close to it.
[0029] The support mechanism includes a guide rod 4, a mounting block 3, a vertical plate 18, and a second connecting rod 2; Two guide rods 4 are slidably installed through the outer ends of the three support plates 9. The two guide rods 4 on the same side are movably installed on the outer sides of the second connecting frame 901 that is close to them. The upper ends of the two adjacent guide rods 4 on the same side are respectively installed with the same mounting block 3. The three support legs 5 are respectively fixedly installed at the lower ends of the two guide rods 4 that are close to them. Two second fixed shafts are respectively installed on both sides of the three mounting blocks 3, and the first ends of the second connecting rods 2 are respectively rotatably installed on the outer walls of the six second fixed shafts; Vertical plates 18 are respectively installed on the upper part of the outer walls on both sides of the three slide grooves 101. Third fixed shafts are respectively installed on the outer walls of the six vertical plates 18. The second ends of the six second connecting rods 2 are respectively rotatably installed on the outer walls of the third fixed shafts adjacent to them. (Refer to...) Figure 4 When the three support plates 9 slide outwards, the two adjacent second connecting rods 2 begin to rotate downwards. During the downward rotation of the two second connecting rods 2, they simultaneously drive the adjacent mounting blocks 3 to slide downwards. During the downward sliding of the mounting blocks 3 on the same side, they respectively drive the two adjacent guide rods 4 to slide downwards. During the downward sliding of the two guide rods 4 on the same side, they simultaneously drive the support legs 5 to slide downwards. By sliding outwards and downwards at the same time, the three support legs 5 can initially support the equipment on a larger support surface.
[0030] Each of the three support legs 5 has a wheel frame installed at its lower end. Several rubber auxiliary wheels 20 are rotatably installed in each of the three wheel frames. Since the three support legs 5 need to slide outward and downward in the entire motion system, the rubber auxiliary wheels 20 under the three support legs 5 begin to roll as the support legs 5 slide outward after they initially contact the ground, which reduces friction.
[0031] The operating mechanism includes a crank handle 16, a first bevel gear 14, a second bevel gear 15, a first threaded rod 27, and an L-shaped mounting plate 17. The lifting bucket 25 is threaded with a first threaded rod 27. The upper end of the first threaded rod 27 is rotatably threaded through the top wall of the outer bucket 13 and fixedly installed with a second bevel gear 15. The rear side of the second bevel gear 15 is meshed with a first bevel gear 14. The horizontal plate of the L-shaped mounting plate 17 is fixedly installed on the rear wall of the top of the outer barrel 13. The rocker arm 16 is rotatably installed on the rear wall of the vertical plate of the L-shaped mounting plate 17. The output end of the rocker arm 16 rotatably passes through the vertical plate of the L-shaped mounting plate 17 and is fixedly connected to the first bevel gear 14. Mounting base 10 is movably mounted above the first bevel gear 14; The first threaded rod 27 drives the lifting mechanism to work through rotation. When the equipment is in its initial state, such as Figure 5 As shown, the device is in a motorized state at this time. By turning the crank handle 16, the crank handle 16 drives the first bevel gear 14, which is fixedly mounted on the same axis, to start rotating. (Refer to...) Figure 2 During the rotation of the first bevel gear 14, the second bevel gear 15 meshing with it begins to rotate. During the rotation of the second bevel gear 15, the first threaded rod 27 coaxially fixed with it begins to rotate. During the rotation of the first threaded rod 27, the lifting bucket 25 threaded through it begins to slide up and down along the outer bucket 13. Since the movement trajectory of the lifting bucket 25 is limited by the three first fixed shafts and the three first through slots 1301, the lifting bucket 25 can only slide up and down and will not rotate. Due to the threaded assembly relationship between the lifting bucket 25 and the first threaded rod 27, the equipment has a locking function during the change of form.
[0032] The lifting mechanism includes an external threaded barrel 7, a second threaded rod 8, a first spur gear 28, and a second spur gear 29; The lower end of the first threaded rod 27 is rotatably inserted through the regular hexagonal base and fixedly installed with the first spur gear 28; Three second spur gears 29 are installed on the outer side of the first spur gear 28 at equal angles. The three second spur gears 29 are rotatably installed at the lower end of the regular hexagonal base through the second threaded rod 8. The upper ends of the three second threaded rods 8 are respectively rotatably connected between the hexagonal base and the base. The three second threaded rods 8 are respectively installed on the outer side of the two adjacent vertical plates 18. Three external threaded barrels 7 are installed at equal angles at the lower end of the mounting base 10. The three external threaded barrels 7 are respectively threaded onto the outer wall of the second threaded rod 8 that is close to them. One of the externally threaded barrels 7 operates via a sliding drive retraction mechanism, see reference. Figure 9During the rotation of the first threaded rod 27, the first spur gear 28, which is coaxially mounted with it, is simultaneously driven to rotate. During the rotation of the first spur gear 28, the three second spur gears 29, which are meshed with it, are simultaneously driven to rotate. During the synchronous rotation of the three second spur gears 29, the three second threaded rods 8, which are coaxially mounted with it, are simultaneously driven to rotate. Since the three external threaded barrels 7 are all fixedly mounted at the lower end of the mounting base 10 and are distributed in an equilateral triangle, the entire mounting base 10, which limits the external threaded barrels 7, will slide upward synchronously during the synchronous rotation of the three second threaded rods 8, thus achieving height compensation for the mounting base 10 after the equipment is supported.
[0033] The retracting mechanism includes a vertical mounting plate 19, a second through slot 1901, a third connecting rod 12, a third through slot 1201, a sliding block 21, and a convex shaft 2101. One of the external threaded barrels 7 has a first end of a drive shaft fixedly installed on the lower outer wall. A vertical mounting plate 19 is fixedly installed on the upper part of the outer wall of the regular hexagonal base close to the drive shaft. A second through groove 1901 is provided on the vertical mounting plate 19. The second end of the drive shaft is slidably connected to the second through groove 1901. A sliding block 21 is installed at the second end of the drive shaft. The sliding block 21 is slidably installed on the outer wall of the vertical mounting plate 19. A convex shaft 2101 is installed at both ends of the sliding block 21. The lower sides of the vertical mounting plate 19 are respectively equipped with fourth fixed shafts, and the first ends of the third connecting rods 12 are respectively rotatably mounted on the outer walls of the two fourth fixed shafts. The two third connecting rods 12 are respectively provided with third through grooves 1201. The two convex shafts 2101 are respectively slidably connected to the third through groove 1201 adjacent to them; The two handrails 11 are respectively fixedly installed on the outer wall of the second end of the adjacent third link 12, for reference. Figure 7 When the three external threaded barrels 7 move up and down, the drive shaft installed near the external threaded barrels 7 will drive the sliding block 21 to move up and down through the drive shaft. During the up and down movement, the sliding block 21 will drive the convex shafts 2101 on both sides to move up and down respectively. Since the movement trajectory of the two convex shafts 2101 is simultaneously limited within the two third through slots 1201, the two convex shafts 2101 will also simultaneously drive the third connecting rods 12 on both sides to start rotating up and down around their own rotation center, thereby driving the handrails 11 close to them to start to retract. When the two convex shafts 2101 move downward, the two handrails 11 move downward and extend. When the two convex shafts 2101 move upward, the two handrails 11 move upward and retract.
[0034] A support barrel 22 is installed at the lower end of the regular hexagonal base, and the first spur gear 28 and three second spur gears 29 are movably installed inside the support barrel 22; The first end of the rotating shaft 24 is rotatably installed at the lower end of the support barrel 22. Three mounting shafts are installed at equal angles on the outer wall of the second end of the rotating shaft 24. Mountain wheels 23 are rotatably installed on the outer ends of the three mounting shafts. Their function is to move upward and inward when the three support legs 5 are retracted. The three mountain wheels 23 replace the rubber auxiliary wheels 20 to support the ground. At this time, the equipment can be moved by pushing the protruding handrail 11.
[0035] Implementation method of the present invention: The equipment is in its initial state, i.e., in its operational state, such as... Figure 10 In the state shown in Figure A, the three mountain bike wheels 23 are in contact with the ground, the two handrails 11 extend outwards, the three support plates 9 are respectively stored in the corresponding sliding grooves 101, and the three support legs 5 are stored in the lower outer ends of the three support plates 9 that are close to them. Several rubber auxiliary wheels 20 installed below the three support legs 5 are off the ground, and the mounting base 10 is close to the top of the outer barrel 13. In this state, the equipment has a certain degree of mobility, and the operator can hold the handrails 11 with both hands to push the equipment to move. After the equipment reaches the designated location, and the surveying equipment is secured using the fixing module at the top of the mounting base 10, the crank 16 is turned. The mounting base 10, carrying the surveying equipment, begins to rise. Simultaneously, the three support plates 9 extend outwards to provide a larger support area for the rubber auxiliary wheels 20 that are about to touch the ground. The three support legs 5 move downwards along with the three support plates 9, driving the rubber auxiliary wheels 20 downwards to support the hexagonal base. During this process, the two handrails 11 are retracted. At this point, the equipment is as follows: Figure 10 The state shown in B.
[0036] This equipment utilizes the mechanical linkage between the lifting mechanism, sliding mechanism, and support mechanism to provide height compensation for the mounting base during the equipment's unfolding and support process. This balances shooting height and stability, reducing the frequency of using additional components. Furthermore, the mountain wheels at the bottom of the equipment, in conjunction with the handlebars when the equipment is folded and unfolded, facilitate movement in forest areas, avoiding the need to hold the equipment by hand and reducing the burden on workers. Moreover, this equipment abandons the traditional tripod-based ground support method, employing the principle of mutual restraint among three equally angled rubber auxiliary wheels. The friction between these wheels and the ground allows for adaptation to most terrains, especially on sloping terrain, providing an anti-tipping effect.
[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A field mapping support for forestry surveys, characterized by: It includes a base (1), legs (5), support plate (9), handrail (11), mounting base (10), operating mechanism, lifting mechanism, sliding mechanism, support mechanism, and retraction mechanism; The upper end of the base (1) is provided with several support plates (9), and the lower part of the outer end of the several support plates (9) is provided with support legs (5). Several of the support plates (9) are driven to slide by a sliding mechanism, and several of the support legs (5) are driven to slide by a support mechanism. The support mechanism is driven to work by the sliding mechanism. A mounting base (10) is movably provided above the base (1). A surveying device is detachably provided at the upper end of the mounting base (10). The mounting base (10) is driven to move by a lifting mechanism. An operating mechanism is provided on the upper front side of the base (1), and the sliding mechanism is driven to work by the operating mechanism; The lifting mechanism is driven by the operating mechanism. Two handrails (11) are provided on one side of the operating mechanism. Both handrails (11) are driven to move by a retraction mechanism, which is driven by the lifting mechanism.
2. The field mapping support for forestry surveys as described in claim 1, characterized in that: The base (1) is a regular hexagonal base. The upper end of the regular hexagonal base is provided with three sliding grooves (101) at equal angles. The inner ends of the three sliding grooves (101) are connected to each other, and the outer ends of the three sliding grooves (101) are connected to the outer wall of the regular hexagonal base that is close to them. The number of the support plates (9) is three, and the three support plates (9) are slidably connected to the adjacent slide groove (101).
3. The field mapping support for forestry surveys as described in claim 2, characterized in that: The sliding mechanism includes an outer barrel (13), a first through groove (1301), a lifting barrel (25), a first connecting frame (26), a second connecting frame (901), and a first connecting rod (6). The upper end of the regular hexagonal base is provided with an outer barrel (13), and the lower end of the outer barrel (13) is located in the connection of the three sliding grooves (101). The outer barrel (13) is slidably provided with a lifting barrel (25). The outer wall of the lifting barrel (25) is provided with three first connecting brackets (26) at equal angles through three first fixed shafts. The outer wall of the outer barrel (13) is provided with three first through slots (1301) at equal angles. The three first fixed shafts are slidably connected to the first through slots (1301) that are close to them. The three first connecting brackets (26) are respectively provided on the outside of the outer barrel (13). The first end of the first connecting rod (6) is rotatably provided in each of the three first connecting frames (26); The upper outer ends of the three support plates (9) are respectively provided with second connecting frames (901), and the second ends of the three first connecting rods (6) are respectively rotatably disposed in the second connecting frames (901) that are close to them; The lifting bucket (25) is driven to slide by the operating mechanism; The three support plates (9) are respectively driven by sliding to operate the support mechanism.
4. The field mapping support for forestry surveys as described in claim 3, characterized in that: The support mechanism includes a guide rod (4), a mounting block (3), a vertical plate (18), and a second connecting rod (2); Two guide rods (4) are slidably provided through the outer ends of the three support plates (9). The two guide rods (4) located on the same side are respectively movably provided on the outer sides of the second connecting frame (901) that is close to them. The upper ends of the two adjacent guide rods (4) located on the same side are respectively provided with the same mounting block (3). The three support legs (5) are respectively fixedly provided at the lower ends of the two guide rods (4) that are close to them. The three mounting blocks (3) are provided with second fixed shafts on both sides, and the first end of the second connecting rod (2) is rotatably sleeved on the outer wall of the six second fixed shafts; Vertical plates (18) are provided on the upper part of the outer walls on both sides of the three grooves (101), and a third fixed shaft is provided on the outer wall of the six vertical plates (18). The second ends of the six second connecting rods (2) are respectively rotatably sleeved on the outer wall of the third fixed shaft that is close to them.
5. The field surveying support for forestry surveys according to claim 4, characterized in that: The lower ends of the three legs (5) are respectively provided with wheel frames, and several rubber auxiliary wheels (20) are rotatably provided in the three wheel frames.
6. The field mapping support for forestry surveys as described in claim 3, characterized in that: The operating mechanism includes a crank (16), a first bevel gear (14), a second bevel gear (15), a first threaded rod (27), and an L-shaped mounting plate (17). The lifting bucket (25) is threaded through by a first threaded rod (27). The upper end of the first threaded rod (27) is rotatably threaded through the top wall of the outer bucket (13) and fixed with a second bevel gear (15). The rear side of the second bevel gear (15) is meshed with the first bevel gear (14). The top rear wall of the outer barrel (13) is fixedly provided with a horizontal plate of an L-shaped mounting plate (17), and a rocker (16) is rotatably provided on the rear wall of the vertical plate of the L-shaped mounting plate (17). The output end of the rocker (16) rotatably passes through the vertical plate of the L-shaped mounting plate (17) and is fixedly connected to the first bevel gear (14). The mounting base (10) is movably disposed above the first bevel gear (14); The first threaded rod (27) drives the lifting mechanism to work by rotating.
7. The field surveying support for forestry surveys as described in claim 6, characterized in that: The lifting mechanism includes an external threaded barrel (7), a second threaded rod (8), a first spur gear (28), and a second spur gear (29). The lower end of the first threaded rod (27) is rotatably connected to the regular hexagonal base and fixed with the first straight gear (28). The outer side of the first spur gear (28) is provided with three second spur gears (29) meshing at equal angles. The three second spur gears (29) are respectively rotatably disposed at the lower end of the regular hexagonal base through the second threaded rod (8). The upper ends of the three second threaded rods (8) are respectively rotatably connected to the regular hexagonal base, and the three second threaded rods (8) are respectively located on the outer side of the two adjacent vertical plates (18); The lower end of the mounting base (10) is provided with three external threaded barrels (7) at equal angles, and the three external threaded barrels (7) are respectively threaded onto the outer wall of the second threaded rod (8) that is close to it; One of the externally threaded barrels (7) operates by sliding the take-up and take-down mechanism.
8. The field mapping support for forestry surveys according to claim 7, characterized in that: The retracting mechanism includes a vertical mounting plate (19), a second through slot (1901), a third connecting rod (12), a third through slot (1201), a sliding block (21), and a convex shaft (2101). One of the external threaded barrels (7) has a first end of a drive shaft fixedly installed on the lower outer wall. A vertical mounting plate (19) is fixedly installed on the upper part of the outer wall of the regular hexagonal base close to the drive shaft. A second through groove (1901) is provided on the vertical mounting plate (19). The second end of the drive shaft and the second through groove (1901) are slidably connected. The second end of the drive shaft is provided with a sliding block (21), which is slidably disposed on the outer wall of the vertical mounting plate (19). The two ends of the sliding block (21) are respectively provided with convex shafts (2101). The lower sides of the vertical mounting plate (19) are respectively provided with fourth fixed shafts, and the first ends of the third connecting rods (12) are respectively rotatably sleeved on the outer walls of the two fourth fixed shafts. The two third connecting rods (12) are respectively provided with third through grooves (1201). The two convex shafts (2101) are slidably connected through each other to the third through groove (1201) adjacent to them; The two handrails (11) are respectively fixed on the outer wall of the second end of the third link (12) that is close to them.
9. The field mapping support for forestry surveys according to claim 7, characterized in that: The lower end of the regular hexagonal base is provided with a support barrel (22), and the first spur gear (28) and three second spur gears (29) are movably disposed in the support barrel (22); The lower end of the support barrel (22) is provided with a first end of a rotating shaft (24), and the outer wall of the second end of the rotating shaft (24) is provided with three mounting shafts at equal angles. The outer ends of the three mounting shafts are respectively provided with mountain wheels (23).