CN109211074B - Grassland vegetation coverage measuring device - Google Patents
Grassland vegetation coverage measuring device Download PDFInfo
- Publication number
- CN109211074B CN109211074B CN201811248630.5A CN201811248630A CN109211074B CN 109211074 B CN109211074 B CN 109211074B CN 201811248630 A CN201811248630 A CN 201811248630A CN 109211074 B CN109211074 B CN 109211074B
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- rope
- rod
- pull
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- rectangular
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/26—Measuring arrangements characterised by the use of mechanical techniques for measuring areas, e.g. planimeters
Abstract
The invention relates to a grassland vegetation coverage measuring device, which comprises a rectangular frame formed by enclosing rectangular plates, wherein two pull rope devices are arranged in the rectangular frame; the two rope pulling devices are respectively arranged on two adjacent rectangular plates; the pull rope device comprises two pull rod assemblies arranged in the rectangular frame and pull rope assemblies arranged on the two pull rod assemblies; the pull rod assembly comprises a fixed rod fixed on the rectangular plate, a movable rod and a connecting rod, wherein the movable rod and the connecting rod are arranged in parallel with the fixed rod; the pull rope assembly comprises a clamping ball, a fluorescent rope and an elastic rope, one end of the fluorescent rope and one end of the elastic rope are fixed on the clamping ball respectively, and the other end of the fluorescent rope and the other end of the elastic rope penetrate through corresponding through holes in the fixed rods and the movable rods to be connected to form upper and lower layers of grid lines tensioned between the two fixed rods and the two movable rods.
Description
Technical Field
The invention relates to the technical field of grass leaf scientific instruments, in particular to a grassland vegetation coverage measuring device.
Background
Vegetation coverage refers to the percentage of the area of the perpendicular projection of the aerial parts of the population or individual bodies of plants compared to the area of the sample. It reflects the luxuriant degree of vegetation and the size of the photosynthesis area of plants. Vegetation coverage (coverage) is one of the important tasks in ecological monitoring and desertification monitoring, and is also an effective index for evaluating grassland, grassland conditions, land degradation and desertification. Common methods for measuring the vegetation coverage of grasslands include a grid method, a needle punching method and the like. The grid method measurement is to further subdivide the sample into a series of small grids with equal area for visual estimation, and the more grids are, the higher the precision is.
At present, the number of most grids of a measuring device adopting grid measurement is determined, for example, the patent number is 201620204285.5, the name is vegetation coverage measuring net and portable vegetation coverage measuring device, a vegetation coverage measuring net is disclosed, the number of grids is fixed, and the number of grids cannot be changed according to actual conditions. Therefore, the measured vegetation coverage numerical value in the same sample has very large error and inaccuracy probability, whether the measured value is accurate or not is required to be further accurately measured or corrected, the grid number needs to be changed by replacing the measuring device, the measurement is very inconvenient, time and labor are wasted, and the measurement efficiency is low. In order to measure accurately and reduce the replacement time of replacing different measuring devices, the device for measuring the vegetation coverage of the grassland is provided, the number and the size of grids can be changed, so that the device is suitable for field measurement under different vegetation coverage conditions, the accuracy of a measured value is improved, the time is saved, and the measuring efficiency is improved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a grassland vegetation coverage measuring device with variable number of measuring grids and accurate measuring value.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the utility model provides a grassland vegetation coverage measuring device, its key technology lies in: the rope pulling device comprises a rectangular frame formed by enclosing rectangular plates, wherein two rope pulling devices are arranged in the rectangular frame; the two rope pulling devices are respectively arranged on the adjacent rectangular plates;
the pull rope device comprises two pull rod assemblies arranged in the rectangular frame and pull rope assemblies arranged on the two pull rod assemblies; the pull rod assembly comprises a fixed rod fixed on the rectangular plate, a movable rod and a connecting rod, wherein the movable rod and the connecting rod are arranged in parallel with the fixed rod;
the pull rope assembly comprises a clamping ball, a fluorescent rope and an elastic rope, one end of the fluorescent rope and one end of the elastic rope are respectively fixed on the clamping ball, and the other end of the fluorescent rope and the other end of the elastic rope respectively penetrate through corresponding through holes on the fixed rods and the movable rods to be connected, so that an upper layer of grid line and a lower layer of grid line tensioned between the two fixed rods and the two movable rods are formed; grid lines formed by the pull rope assemblies on the two pull rope devices are perpendicular to each other to form a grid; the blocking ball is blocked at one side far away from the grid line;
the driving pull rope assembly swings along the arc-shaped sliding groove on the rectangular plate, and the upper and lower layers of grid lines on the pull rope assembly are overlapped or staggered with each other, so that grids are changed.
As a further improvement of the invention, a thin waist-shaped clamping ring is arranged in the through hole, the elastic rope and the fluorescent rope are connected with each other after passing through the clamping ring, and the clamping ball is clamped on one side of the clamping ring.
As a further improvement of the invention, semicircular clamping grooves are arranged on two sides of the arc-shaped sliding groove.
As a further improvement of the invention, the connecting rod or the moving rod is further provided with a pull rod, and the pull rod or the moving rod and the connecting rod are respectively arranged on two sides of the rectangular plate.
As a further improvement of the invention, the device also comprises a fixing device, wherein the fixing device comprises a pulley and a fixing piece which are arranged on the rectangular plate; the fixing piece comprises a shell fixed on the side edge of the rectangular plate and a puncturing needle arranged in the shell; the middle part of the shell is provided with a wind instrument plate; the outer sleeve of the puncture needle is provided with a spring, two free ends of the spring are respectively fixed on the shell and the rectangular plate, and the shell is provided with a puncture hole for the puncture needle to pass through.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the grassland vegetation coverage measuring device can change the number of grids or change the shape of the grids (square or rectangular grids) by overlapping or mutually staggering the upper and lower layers of grid lines on the pull rope component. Two sets of stay cord subassemblies stagger the setting one above the other in the vertical direction, and the stay cord subassembly of top forms two-layer overlapping or the horizontal rope that staggers each other, and the stay cord subassembly of below forms two-layer overlapping or the vertical rope that staggers each other, and horizontal rope and vertical rope mutually perpendicular form the grid that the size is the same. During measurement, the proper grid number and grid shape are selected according to the field situation, so that the measurement is more accurate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the present invention with a varied number of grids.
Fig. 3 is a schematic view of the structure of the drawbar assembly of fig. 1.
Fig. 4 is a schematic view of the structure of the drawbar assembly of fig. 2.
Fig. 5 is a schematic view of the construction of the pull cord assembly of fig. 1.
Fig. 6 is a schematic sectional structure view of fig. 1.
Fig. 7 is a schematic sectional structure view of fig. 2.
Fig. 8 is an enlarged schematic view of a structure at a in fig. 6.
Fig. 9 is a schematic top view of the structure of fig. 1.
Fig. 10 is a schematic top view of the structure of fig. 2.
FIG. 11 is a schematic top view of the present invention in a use state.
Fig. 12 is a schematic top view of the present invention in another use state.
Wherein: the multifunctional acupuncture device comprises a rectangular plate 1, a rectangular frame 2, a fixed rod 3, a movable rod 4, a connecting rod 5, a through hole 6, a clamping ball 7, a fluorescent rope 8, an elastic rope 9, an arc-shaped sliding groove 10, a clamping ring 11, a clamping groove 12, a pull rod 13, a pulley 14, a shell 15, a puncturing needle 16, a piano plate 17, a spring 18 and a puncturing hole 19.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail and fully with reference to the accompanying drawings and specific embodiments.
The device for measuring the vegetation coverage of the grassland as shown in fig. 1-10 comprises a rectangular frame 2 enclosed by rectangular plates 1, wherein two pull rope devices are arranged in the rectangular frame 2; the two rope pulling devices are respectively arranged on the adjacent rectangular plates 1. The two rope pulling devices respectively pull out the transverse ropes and the longitudinal ropes, and the transverse ropes and the longitudinal ropes are perpendicular to each other and form grids with equal areas.
As shown in fig. 1 to 7, the rope pulling device includes two pull rod assemblies disposed in the rectangular frame 2 and a rope pulling assembly disposed on the two pull rod assemblies. As shown in fig. 3-6, the pull rod assembly includes a fixed rod 3 fixed on the rectangular plate 1, a movable rod 4 and a connecting rod 5 parallel to the fixed rod 3, two ends of the connecting rod 5 are respectively hinged to the fixed rod 3 and the movable rod 4, and the fixed rod 3 and the movable rod 4 are respectively and uniformly provided with corresponding through holes 6. The connecting rod 5 or the moving rod 4 is further provided with a pull rod 13, and the pull rod 13 or the moving rod 4 and the connecting rod 5 are respectively arranged on two sides of the rectangular plate 1. In this embodiment, the pull rod 13 is connected to the moving rod 4.
As shown in fig. 3-4, two arc chutes 10 are disposed on the rectangular plate 1, a cylindrical sliding rod matched with the arc chutes 10 is disposed on the moving rod 4, one side of the cylindrical sliding rod is fixed with a pull rod 13, the pull rod 13 and the pull rod assembly are respectively disposed on two sides of the rectangular plate 1, and the pull rod 13 is pulled to reciprocate to drive the moving rod 10 to reciprocate in the chutes. In this embodiment, semicircular clamping grooves 12 are formed at two ends of the arc-shaped sliding groove 10, and when the moving rod 4 moves to two ends of the arc-shaped sliding groove 10, the cylindrical sliding rod can be clamped in the semicircular clamping grooves 12, so that the effect of clamping is achieved, and the cylindrical sliding rod is prevented from moving back. In order to reduce the friction when the moving rod 4 slides in the arc chute 10, a sleeve is provided on the cylindrical sliding rod, and the friction is reduced by rotating the sleeve when the sleeve slides.
As shown in fig. 3-6, the pulling rope assembly includes a ball 7, a fluorescent rope 8 and an elastic rope 9, one end of the fluorescent rope 8 and one end of the elastic rope 9 are respectively fixed on the ball 7, and the other end of the fluorescent rope 8 and the other end of the elastic rope 9 respectively penetrate through the corresponding through holes 6 on the fixed rod 3 and the movable rod 4 to be connected, so as to form an upper layer of grid lines and a lower layer of grid lines which are tensioned between the two fixed rods 3 and the two movable rods 4. And grid lines formed by the pull rope assemblies on the two pull rope devices are perpendicular to each other to form a grid. The blocking ball 7 is blocked at one side far away from the grid lines.
The connecting rod 5 of the driving rope pulling component swings in the arc-shaped sliding groove 10 on the rectangular plate 1, and the upper layer and the lower layer of grid lines on the rope pulling component are overlapped or staggered with each other, so that the number of grids is changed. The two groups of the stay rope assemblies are arranged in a staggered manner one above the other in the vertical direction, the stay rope assembly above forms two layers of overlapped or mutually staggered transverse ropes, the stay rope assembly below forms two layers of overlapped or mutually staggered longitudinal ropes, and the transverse ropes and the longitudinal ropes are mutually perpendicular to form grids with the same size (as shown in figures 1-4 and 6-7). The overlapping or staggering of the two layers of transverse ropes and the two layers of longitudinal ropes is realized by driving the position of the movable rod 4 in the arc-shaped sliding groove 10.
When the cylindrical sliding rod on the moving rod 4 is in the clamping groove 12 on the right side of the arc-shaped sliding groove 10, the upper layer grid line and the lower layer grid line are overlapped, when the cylindrical sliding rod on the moving rod 4 is in the clamping groove 12 on the left side of the arc-shaped sliding groove 10, the upper layer grid line and the lower layer grid line are staggered, and the staggered lower layer grid line is positioned in the middle of the upper layer grid line, so that the formed grid areas are the same.
In this embodiment, when the cylindrical sliding rods (i.e., the cylindrical sliding rods on the moving rod) on the upper and lower rope pulling assemblies slide to the rightmost side (as shown in fig. 1, 3 and 6) of the arc-shaped sliding groove 10, the initial position is formed, and the grassland vegetation coverage measuring device with the least number of grids (as shown in fig. 11) is formed, and when the cylindrical sliding rods all slide to the leftmost side (as shown in fig. 2, 4 and 7) of the arc-shaped sliding groove 10, the number of grids is the largest, and the number of grids is increased by four times and is both square grids.
When the cylindrical sliding rods on the upper and lower pull rope assemblies slide to the rightmost side of the arc-shaped sliding groove 10 on one side and slide to the leftmost side of the arc-shaped sliding groove 10 on the other side, the number of the formed grids is doubled compared with the initial position, and transverse or vertical rectangular grids with the same area are formed (as shown in fig. 11-12).
During measurement, the grassland vegetation coverage measuring device is placed on the ground, and the proper grid shape and quantity or the arrangement direction of the rectangular grids (the rectangular grids are horizontal or vertical, as shown in figures 11-12) are selected according to the vegetation amount in the measuring frame, so that more vegetation in the same measuring frame is positioned and filled in the corresponding grids as much as possible, and the measured data are more accurate. When the rectangular grid is used for measurement, in order to ensure the accuracy of measured data, the arrangement direction of the rectangular grid can be adjusted during measurement, for example, a numerical value is measured by adopting the arrangement direction of the grid shown in fig. 11, then the arrangement direction of the rectangular grid is changed by adjusting the position of the fluorescent rope through the pull rope assembly, then a numerical value is measured, and finally the average value of the two numerical values is adopted as a measured value, so that the measurement error is as small as possible.
As shown in fig. 5, in order to increase the service life of the elastic cord 9 and the fluorescent cord 8, a waist-shaped snap ring 11 is disposed in the through hole 6, the elastic cord 9 and the fluorescent cord 8 are connected to each other after passing through the snap ring 11, and the snap ball 7 is snapped on one side of the snap ring 11 to prevent the through hole 6 from rubbing the cord back and forth and breaking when the moving rod 4 moves. The elastic rope 9 is used for balancing the expansion amount of the rope when the movable rod 4 slides in the arc-shaped sliding groove 10 in a reciprocating manner, so that the fluorescent rope 8 is always in a tensioned and straightened state. In order to avoid the dislocation of the rope in the through hole 6 when the moving rod 4 slides back and forth in the arc-shaped sliding groove 10, the clamping ball 7 is arranged, one clamping ball 7 can be respectively arranged at two joints of the elastic rope 9 and the fluorescent rope 8, or one clamping ball 7 can be arranged at one joint, and one clamping ball 7 is arranged in the embodiment. The fluorescent rope 8 can effectively avoid grid confusion and grid unclear resolution during visual inspection, and particularly, the fluorescent rope 8 can effectively play a role in prompting in cloudy days, cloudy days and evening.
Because the stay cord subassembly is double-deck setting about in the vertical direction on rectangular plate 1, consequently rectangular frame 2's thickness is great, so set up pulley 14 on rectangular plate 1, set up the handle on the rectangular plate that rectangular plate 1 is relative that sets up pulley 14, realize rectangular frame 2's removal through handle and pulley, it is more convenient, laborsaving.
The pulleys 14 may serve as support points to facilitate the raising and lowering of the overall turf vegetation coverage measuring device during field measurements. To avoid the grassland vegetation coverage measuring device to fall over or over after being lifted up around the pulley 14, a fixing member is provided on the rectangular plate 1 provided with the pulley 14.
As shown in fig. 8, the fixing member includes a housing 15 fixed to a side of the rectangular plate 1 and a puncturing needle 16 disposed inside the housing 15. The middle of the shell 15 is provided with a wind instrument board 17. A spring 18 is sleeved outside the puncture needle 16, two free ends of the spring 18 are respectively fixed on the shell 15 and the rectangular plate 1, and the shell 15 is provided with a puncture hole 19 for the puncture needle 16 to pass through.
After the grassland vegetation coverage measuring device is lifted up around the pulley 14, the shell 15 between the rectangular plate 1 and the ground is compressed, the organ plate 17 is contracted, the spring 18 is compressed, and the puncturing needle 16 is enabled to extend out of the shell 15 to puncture the ground, so that the balance of the grassland vegetation coverage measuring device is ensured, and the grassland vegetation coverage measuring device is prevented from toppling. When the grassy vegetation coverage measuring device is lowered, the housing 15 is reset by the spring 18, the gusset 17 is opened, and the puncturing needle 16 is retracted. The mounting can effectively avoid meadow vegetation coverage measuring device to lift and topple over when standing, prevents to pierce 16 fish tails of needle and measure the person during simultaneous measurement.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a grassland vegetation coverage measuring device which characterized in that: the device comprises a rectangular frame (2) enclosed by rectangular plates (1), wherein two pull rope devices are arranged in the rectangular frame (2); the two rope pulling devices are respectively arranged on the adjacent rectangular plates (1);
the pull rope device comprises two pull rod assemblies arranged in the rectangular frame (2) and pull rope assemblies arranged on the two pull rod assemblies; the pull rod assembly comprises a fixed rod (3) fixed on the rectangular plate (1), a movable rod (4) and a connecting rod (5), wherein the movable rod (4) and the connecting rod (5) are arranged in parallel with the fixed rod (3), two ends of the connecting rod (5) are respectively hinged with the fixed rod (3) and the movable rod (4), and the fixed rod (3) and the movable rod (4) are respectively and uniformly provided with corresponding through holes (6);
the pull rope assembly comprises a clamping ball (7), a fluorescent rope (8) and an elastic rope (9), one end of the fluorescent rope (8) and one end of the elastic rope (9) are respectively fixed on the clamping ball (7), and the other ends of the fluorescent rope (8) and the elastic rope (9) respectively penetrate through corresponding through holes (6) in the fixed rods (3) and the movable rods (4) to be connected to form an upper layer of grid line and a lower layer of grid line which are tensioned between the two fixed rods (3) and the two movable rods (4); grid lines formed by the pull rope assemblies on the two pull rope devices are perpendicular to each other to form a grid; the clamping ball (7) is clamped at one side far away from the grid line;
the pull rope assembly is driven to swing along the arc-shaped sliding groove (10) on the rectangular plate (1), and the upper and lower layers of grid lines on the pull rope assembly are overlapped or staggered with each other, so that grids are changed.
2. The grassland vegetation coverage measuring device of claim 1, wherein: a thin waist-shaped clamping ring (11) is arranged in the through hole (6), the elastic rope (9) and the fluorescent rope (8) penetrate through the clamping ring (11) and then are connected with each other, and the clamping ball (7) is clamped on one side of the clamping ring (11).
3. The grassland vegetation coverage measuring device of claim 1, wherein: semicircular clamping grooves (12) are formed in the two sides of the arc-shaped sliding groove (10).
4. The grassland vegetation coverage measuring device of claim 1, wherein: the connecting rod (5) or the moving rod (4) is further provided with a pull rod (13), and the pull rod (13) or the moving rod (4) and the connecting rod (5) are respectively arranged on two sides of the rectangular plate (1).
5. The grassland vegetation coverage measuring device of claim 1, wherein: the device also comprises a fixing device, wherein the fixing device comprises a pulley (14) and a fixing piece which are arranged on the rectangular plate (1); the fixing piece comprises a shell (15) fixed on the side edge of the rectangular plate (1) and a puncturing needle (16) arranged in the shell (15); a wind instrument plate (17) is arranged in the middle of the shell (15); a spring (18) is sleeved outside the puncturing needle (16), two free ends of the spring (18) are respectively fixed on the shell (15) and the rectangular plate (1), and a puncturing hole (19) for the puncturing needle (16) to pass through is formed in the shell (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811248630.5A CN109211074B (en) | 2018-10-25 | 2018-10-25 | Grassland vegetation coverage measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811248630.5A CN109211074B (en) | 2018-10-25 | 2018-10-25 | Grassland vegetation coverage measuring device |
Publications (2)
| Publication Number | Publication Date |
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| CN109211074A CN109211074A (en) | 2019-01-15 |
| CN109211074B true CN109211074B (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811248630.5A Expired - Fee Related CN109211074B (en) | 2018-10-25 | 2018-10-25 | Grassland vegetation coverage measuring device |
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| Country | Link |
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| CN (1) | CN109211074B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609121A (en) * | 2019-09-10 | 2019-12-24 | 中国科学院东北地理与农业生态研究所 | Metering device for sample investigation and use method thereof |
| CN111982794B (en) * | 2020-08-03 | 2023-09-26 | 鞍钢股份有限公司 | Measuring tool and method for corrosion area ratio of salt spray test |
| CN114543638B (en) * | 2022-01-12 | 2023-07-25 | 四川恒得复生态科技有限公司 | Tool capable of rapidly determining herbal coverage |
| CN114413735B (en) * | 2022-01-21 | 2022-10-18 | 华北电力大学 | Be applied to coverability measuring device in bush field |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5038484A (en) * | 1989-07-14 | 1991-08-13 | Von Schrader Company | Apparatus for determining an area coverage rate |
| CN204461326U (en) * | 2015-02-28 | 2015-07-08 | 新疆畜牧科学院草业研究所 | Portable grassland vegetation cover degree measuring and calculating device |
| CN204495402U (en) * | 2015-04-13 | 2015-07-22 | 北京良乡蓝鑫水利工程设计所 | A kind of element type multi-usage vegetation sample investigation instrument |
| CN206459608U (en) * | 2017-03-01 | 2017-09-01 | 四川农业大学 | The draft cover degree measuring apparatus of measurement angle can be changed |
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2018
- 2018-10-25 CN CN201811248630.5A patent/CN109211074B/en not_active Expired - Fee Related
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