Shrub and grass quadrat frame for forestry investigation
By designing a scalable and convenient storage shrub and grass sample box, combined with the fixing design of reinforced rods and conical columns, the problem of difficulty in expanding and fixing existing sample boxes in field surveys is solved, and the investigation efficiency and accuracy are improved.
Patent Information
- Application Number
- CN202421778549.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The existing sample frames for forestry surveys are difficult to flexibly expand and store, and are not easy to fix when sampling in the field, which affects the efficiency and accuracy of the survey.
A shrub-like frame including an L-shaped bracket and an adjustment rod is designed. The frame is flexible to expand and store through the stretching and folding of the adjustment rod, and the design of the reinforced rod and conical column ensures the device is securely fixed in the soil.
It realizes flexible expansion and convenient storage of sample boxes, improves the portability and efficiency of field investigations, and ensures stability and reliability during sampling.
Smart Images
Figure CN222979094U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of forestry investigation, in particular to a shrub and herbaceous sample square frame for forestry investigation. Background Technique
[0002] A sample plot is a randomly set sampling plot used to investigate the quantity of plant communities. It is required to be as small as possible and contain most species. The basic investigation procedure is as follows: First, the size of the sample plot must be determined, and the sample square is determined based on the size and density of the plants within the selected sample plot range; Second, the number of sample squares must be determined. The area of the sample square must include most species of the community. Generally, the relationship curve between species and area can be used to determine the number of sample squares. The "minimum area" can be obtained at the bend of the curve, and then the plant community within the "minimum area" is defined based on the dominant species and constant breeding species within the minimum area. Due to different communities being investigated, the area of each sample square is: more than 1㎡ for herbs, more than 10㎡ for shrubs, and more than 100㎡ for trees.
[0003] Most of the current sample square frames cannot be retracted and stored, or the retraction is complex and the folding is inconvenient, which brings certain inconvenience to the setting of shrub and herbaceous sample squares. Therefore, we propose a shrub and herbaceous sample square frame for forestry investigation that is convenient for telescopic storage to solve the problems existing in the above background technique. Content of the Utility Model
[0004] The purpose of the utility model is to provide a shrub and herbaceous sample square frame for forestry investigation, which solves the technical problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A shrub and herbaceous sample square frame for forestry investigation, including a first L-shaped bracket and a second L-shaped bracket. Limiting holes and counterbores are respectively and penetratingly opened on the inner walls of the first L-shaped bracket and the second L-shaped bracket. One end of the first L-shaped bracket is movably connected with a first adjusting rod, and one end of the second L-shaped bracket is movably connected with a second adjusting rod. One end of the first adjusting rod is rotatably connected with one end of the second adjusting rod;
[0006] One ends of the first adjusting rod and the second adjusting rod are respectively fixedly connected with elastic rods. The elastic rods are symmetrically arranged at one end of the first adjusting rod. One end of the elastic rod is fixedly connected with a limiting block. The outer wall of the limiting block is clamped with the inner wall of the limiting hole. One end of the first adjusting rod close to the second adjusting rod is fixedly connected with a connecting block. A rotating groove is opened on the outer wall of the second adjusting rod. The outer wall of the connecting block is rotatably connected with the inner wall of the rotating groove;
[0007] Therefore, a reinforcing rod is arranged in the counterbore, and the reinforcing rod is inserted and fixed in the soil.
[0008] Preferably, a rotating shaft is inserted into the inner wall of the connecting block, and a nut is threadedly connected to the outer wall of the rotating shaft.
[0009] Preferably, the counterbore is arranged at the corner of the first L-shaped bracket and the second L-shaped bracket, and the limiting holes are arranged at both ends of the first L-shaped bracket and the second L-shaped bracket.
[0010] Preferably, the first L-shaped bracket and the second L-shaped bracket are indirectly connected through the first adjusting rod and the second adjusting rod, and the first L-shaped bracket, the second L-shaped bracket, the first adjusting rod and the second adjusting rod form the basic framework of the irrigation and grass sample square.
[0011] Preferably, the reinforcing rod includes a housing, a rotating rod is rotatably connected to the inner wall of the housing, a moving block is threadedly connected to the outer wall of the rotating rod, a conical column is fixedly connected to the bottom outer wall of the moving block, a strip-shaped moving groove is formed in the outer wall of the housing, and the outer wall of the moving block is slidably connected to the inner wall of the strip-shaped moving groove.
[0012] Preferably, a rotating block is fixedly connected to the top end of the rotating rod, and the bottom end of the conical column is conical.
[0013] Compared with the related art, a kind of irrigation and grass sample square for forestry investigation provided by the utility model has the following beneficial effects:
[0014] 1. The utility model provides an irrigation and grass sample square for forestry investigation. By pulling out the adjusting rod inside the L-shaped bracket outward, the device can be flexibly expanded to the required size to meet the investigation needs; when not in use, by pressing the limiting block to release the adjusting rod and folding the adjusting rod into the L-shaped bracket for storage, the volume of the device is greatly reduced, which is convenient for carrying and storing, and improves the convenience of field work.
[0015] 2. The utility model provides an irrigation and grass sample square for forestry investigation. With the design of the reinforcing rod and the conical column, the device can be firmly inserted into the soil and effectively fixed at the irrigation and grass sample plot, preventing movement during the sampling process, and ensuring the stability and reliability of the sampling work; when not in use, the reinforcing rod is pulled out of the soil and stored in the housing, and the pointed part of the conical column is also properly protected, avoiding potential safety hazards during the carrying process. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of the utility model;
[0017] Figure 2 is the Figure 1 enlarged structural diagram of part A in the utility model;
[0018] Figure 3 is a schematic structural diagram of the L-shaped bracket of the utility model;
[0019] Figure 4 is a schematic structural diagram of the first adjusting rod of the utility model;
[0020] Figure 5 Schematic diagram of the reinforcement rod structure of the present utility model;
[0021] Figure 6 Schematic diagram of the internal structure of the reinforcement rod of the present utility model.
[0022] In the figure: 1, the first L-shaped bracket; 2, the second L-shaped bracket; 3, the limiting hole; 4, the counterbore; 5, the first adjusting rod; 6, the second adjusting rod; 7, the connecting block; 8, the rotating groove; 9, the rotating shaft; 10, the nut; 11, the elastic rod; 12, the limiting block; 13, the reinforcement rod; 131, the outer shell; 132, the rotating rod; 133, the moving block; 134, the tapered column; 135, the strip-shaped moving groove. Specific implementation manner
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0024] Embodiment 1:
[0025] Please refer to Figures 1-4 , the present utility model provides a technical solution: a shrub and herb sample square for forestry investigation, including the first L-shaped bracket 1 and the second L-shaped bracket 2. The inner walls of the first L-shaped bracket 1 and the second L-shaped bracket 2 are both penetrated and provided with a limiting hole 3 and a counterbore 4. The inner wall of the first L-shaped bracket 1 is movably connected with the first adjusting rod 5, and the inner wall of the second L-shaped bracket 2 is movably connected with the second adjusting rod 6. One end of the first adjusting rod 5 is rotatably connected to one end of the second adjusting rod 6;
[0026] One end of each of the first adjusting rod 5 and the second adjusting rod 6 is fixedly connected with an elastic rod 11. The elastic rods 11 are symmetrically arranged at one end of the first adjusting rod 5. One end of the elastic rod 11 is fixedly connected with a limiting block 12. The outer wall of the limiting block 12 is clamped with the inner wall of the limiting hole 3. One end of the first adjusting rod 5 close to the second adjusting rod 6 is fixedly connected with a connecting block 7. A rotating groove 8 is opened on the outer wall of the second adjusting rod 6. The outer wall of the connecting block 7 is rotatably connected with the inner wall of the rotating groove 8;
[0027] Therefore, a reinforcement rod 13 is arranged in the counterbore 4, and the reinforcement rod 13 is inserted and fixed in the soil.
[0028] In this implementation scheme, place the device at the location where sampling is required. By pulling the first L-shaped bracket 1 and the second L-shaped bracket 2 outward, the adjusting rod 1 5 and the adjusting rod 2 6 inside are pulled outwards, thereby expanding the device. When inside the first L-shaped bracket 1 and the second L-shaped bracket 2, the elastic rod 11 is squeezed inwards. When encountering the limit hole 3, the elastic rod 11 rebounds, and the limit block 12 is clamped with the limit hole 3, thereby fixing the outwardly stretched adjusting rod 1 5 and the adjusting rod 2 6.
[0029] When the device is not needed, press the limit block 12 towards the middle to separate it from the limit hole 3, and then push the adjusting rod 1 5 and the adjusting rod 2 6 inside the first L-shaped bracket 1 and the second L-shaped bracket 2, thereby reducing the volume of the device. Then, rotate the adjusting rod 2 6 or the adjusting rod 1 5 around the rotating shaft 9 to fold the adjusting rod 1 5 and the adjusting rod 2 6, which can further reduce the carrying volume of the device.
[0030] Among them, the inner wall of the connecting block 7 is inserted with a rotating shaft 9, and the outer wall of the rotating shaft 9 is threadedly connected with a nut 10.
[0031] In this implementation scheme, the rotating shaft 9 is conveniently fixed on the connecting block 7 and the adjusting rod 2 6 through the nut 10.
[0032] Among them, the counterbore 4 is arranged at the corner of the first L-shaped bracket 1 and the second L-shaped bracket 2, and the limit hole 3 is arranged at both ends of the first L-shaped bracket 1 and the second L-shaped bracket 2.
[0033] In this implementation scheme, the setting of the counterbore 4 facilitates the insertion and fixation of the reinforcing rod 13, and the limit hole 3 limits the movement of the limit block 12.
[0034] Among them, the first L-shaped bracket 1 and the second L-shaped bracket 2 are indirectly connected through the adjusting rod 1 5 and the adjusting rod 2 6. The first L-shaped bracket 1, the second L-shaped bracket 2, the adjusting rod 1 5, and the adjusting rod 2 6 form the basic framework of the shrub and grass sample square.
[0035] Example 2:
[0036] As a further optimization of Example 1, on the basis of Example 1, as Figures 1-6 shown, the reinforcing rod 13 includes a housing 131. The inner wall of the housing 131 is rotatably connected with a rotating rod 132. The outer wall of the rotating rod 132 is threadedly connected with a moving block 133. The bottom outer wall of the moving block 133 is fixedly connected with a conical column 134. A strip-shaped moving groove 135 is opened on the outer wall of the housing 131, and the outer wall of the moving block 133 is slidably connected with the inner wall of the strip-shaped moving groove 135.
[0037] Among them, the top end of the rotating rod 132 is fixedly connected with a rotating block, and the bottom end of the conical column 134 is conical.
[0038] In this embodiment, during use, the reinforcing rod 13 is inserted into the counterbore 4. The rotating block is rotated to drive the rotating rod 132 to rotate. The rotating rod 132 drives the moving block 133 to move accordingly. Due to the limitation of the strip-shaped moving groove 135, the moving block 133 drives the tapered column 134 to move downward and insert into the soil to fix the device.
[0039] When the device is not needed, the reinforcing rod 13 is taken out of the soil and then taken out of the L-shaped bracket. The rotating block is rotated, and the rotating rod 132 is rotated in the reverse direction. The rotating rod 132 drives the moving block 133 and the tapered column 134 to move upward, and the tapered column 134 is received in the housing 131 to receive the pointed tapered column 134, which is convenient for carrying.
[0040] Working principle: During use, the device is placed at the place where sampling is required. By pulling the L-shaped bracket 1 and the L-shaped bracket 2 outward, the adjusting rod 1 and the adjusting rod 2 inside are pulled outwards, so as to expand the device. When inside the L-shaped bracket 1 and the L-shaped bracket 2, the elastic rod 11 is squeezed inwards. When encountering the limit hole 3, the elastic rod 11 rebounds, and the limit block 12 is engaged with the limit hole 3, so as to fix the outwardly stretched adjusting rod 1 and the adjusting rod 2.
[0041] When the device needs to be fixed at the shrub and herb quadrat, the reinforcing rod 13 is inserted into the counterbore 4. The rotating block is rotated to drive the rotating rod 132 to rotate. The rotating rod 132 drives the moving block 133 to move accordingly. Due to the limitation of the strip-shaped moving groove 135, the moving block 133 drives the tapered column 134 to move downward and insert into the soil to fix the device.
[0042] When the device is not needed, the reinforcing rod 13 is taken out of the soil and then taken out of the L-shaped bracket. The rotating block is rotated, and the rotating rod 132 is rotated in the reverse direction. The rotating rod 132 drives the moving block 133 and the tapered column 134 to move upward, and the tapered column 134 is received in the housing 131 to receive the pointed tapered column 134, which is convenient for carrying.
[0043] Press the limit block 12 towards the middle to separate it from the limit hole 3, and then push the adjusting rod 1 and the adjusting rod 2 inside the L-shaped bracket 1 and the L-shaped bracket 2, so as to reduce the volume of the device. Then, rotate the adjusting rod 2 or the adjusting rod 1 around the rotating shaft 9 to fold the adjusting rod 1 and the adjusting rod 2, which can further reduce the carrying volume of the device.
[0044] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.
Claims
1. A shrub and grass sampling frame for forestry survey, comprising an L-shaped bracket 1 (1) and an L-shaped bracket 2 (2), characterized in that: The inner walls of the L-shaped bracket 1 (1) and the L-shaped bracket 2 (2) are both penetrated with a limiting hole (3) and a countersunk hole (4); the inner wall of the L-shaped bracket 1 (1) is movably connected with an adjusting rod 1 (5); the inner wall of the L-shaped bracket 2 (2) is movably connected with an adjusting rod 2 (6); one end of the adjusting rod 1 (5) is rotatably connected with one end of the adjusting rod 2 (6); One end of the adjusting rod 1 (5) and the adjusting rod 2 (6) are both fixedly connected to an elastic rod (11), the elastic rod (11) is symmetrically arranged at one end of the adjusting rod 1 (5), one end of the elastic rod (11) is fixedly connected to a limiting block (12), the outer wall of the limiting block (12) is clamped with the inner wall of the limiting hole (3), one end of the adjusting rod 1 (5) close to the adjusting rod 2 (6) is fixedly connected to a connecting block (7), the outer wall of the adjusting rod 2 (6) is provided with a rotating groove (8), and the outer wall of the connecting block (7) is rotatably connected to the inner wall of the rotating groove (8); Therefore, a reinforcement rod (13) is arranged in the countersunk hole (4), and the reinforcement rod (13) is inserted and fixed in the soil.
2. The shrub and grass sample frame for forestry survey according to claim 1, characterized in that: A rotating shaft (9) is inserted into the inner wall of the connecting block (7), and a nut (10) is threadedly connected to the outer wall of the rotating shaft (9).
3. The shrub and grass sampling frame for forestry survey according to claim 1, characterized in that: The countersunk hole (4) is arranged at the corners of the L-shaped bracket 1 (1) and the L-shaped bracket 2 (2), and the limiting hole (3) is arranged at both ends of the L-shaped bracket 1 (1) and the L-shaped bracket 2 (2).
4. The shrub and grass sampling frame for forestry survey according to claim 1, characterized in that: The L-shaped bracket 1 (1) and the L-shaped bracket 2 (2) are indirectly connected through an adjusting rod 1 (5) and an adjusting rod 2 (6). The L-shaped bracket 1 (1), the L-shaped bracket 2 (2), the adjusting rod 1 (5) and the adjusting rod 2 (6) form a basic frame of the grass-shrub sample frame.
5. The shrub and grass sampling frame for forestry survey according to claim 1, characterized in that: The reinforcing rod (13) comprises an outer shell (131), the inner wall of the outer shell (131) is rotatably connected to a rotating rod (132), the outer wall of the rotating rod (132) is threadedly connected to a moving block (133), the bottom outer wall of the moving block (133) is fixedly connected to a conical column (134), the outer wall of the outer shell (131) is provided with a strip moving groove (135), and the outer wall of the moving block (133) is slidably connected to the inner wall of the strip moving groove (135).
6. A shrub and grass sample frame for forestry survey according to claim 5, characterized in that: The top end of the rotating rod (132) is fixedly connected to a rotating block, and the bottom end of the conical column (134) is conical.