A measuring scale for bush quadrat investigation

Abstract

This utility model relates to the field of shrub quadrat surveys and discloses a measuring ruler for shrub quadrat surveys, including a base and a quick-release structure. The base and the quick-release structure are fixedly connected. A cleaning and fixing structure is fixedly connected inside the base. The cleaning and fixing structure includes two brushes, with their adjacent end faces penetrating the upper and lower end faces of the base to the interior of the base. Second limiting blocks are provided at the front and rear ends of the two brushes on the upper and lower end faces of the base. Second limiting posts are provided at the center of the front and rear end faces of the four second limiting blocks, with the other ends of the four second limiting posts penetrating the front and rear end faces of the four second limiting blocks to the front and rear end faces of the two brushes. This utility model allows for better cleaning of the measuring ruler, better cleaning of the inside of the measuring ruler, better fixation of the measuring ruler, and better measurement of small-diameter shrubs.

Description

Technical Field

[0001] This utility model relates to the field of shrub quadrat surveys, and more particularly to a measuring ruler used for shrub quadrat surveys. Background Technology

[0002] Shrub quadrat surveys are a core method in plant community surveys for assessing the biodiversity, structural characteristics, and ecological functions of the shrub layer. Systematic data collection is conducted by setting up sampling plots of specific areas. A shrub quadrat is a regularly shaped sampling plot, typically square or rectangular, with its area determined by the shrub type and density. During the survey, it is necessary to collect data on the base diameter, stem diameter near the ground, number of shrubs, canopy coverage, and percentage of vertical projection area of ​​all shrubs within the quadrat. Biomass is determined using the quarter-harvest method. A measuring ruler is a fundamental tool in vegetation surveys, primarily used to measure key indicators such as the base diameter, stem diameter near the ground, and height of shrubs. These data form the basis for assessing the structure, density, and canopy coverage of the shrub community, as well as the percentage of the vertical projection area of ​​the aboveground parts of the plants within the quadrat area.

[0003] There are still some problems in the use of existing measuring rulers for shrub quadrature surveys. The existing measuring rulers for shrub quadrature surveys cannot be cleaned well after measurement, and they cannot be quickly removed for cleaning. Therefore, those skilled in the art provide a measuring ruler for shrub quadrature surveys to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a measuring ruler for shrub quadrature surveys. This ruler allows for better cleaning of the measuring ruler itself, better cleaning of its interior, better fixation, and better measurement of small-diameter shrubs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a measuring ruler for shrub quadrat surveys, comprising a base and a quick-release structure, wherein the base and the quick-release structure are fixedly connected, and a cleaning and fixing structure is fixedly connected inside the base; The cleaning and fixing structure includes two brushes. The end faces of the two brushes, which are close to each other, pass through the upper and lower end faces of the base and extend into the base. The upper and lower end faces of the base are provided with second limiting blocks at the front and rear ends of the two brushes. The center of the front and rear end faces of the four second limiting blocks is provided with second limiting posts. The other end of the four second limiting posts passes through the front and rear end faces of the four second limiting blocks and extends into the front and rear end faces of the two brushes. The front end face of the base is provided with two moisture-absorbing cotton near the center. The rear end faces of the two moisture-absorbing cotton pass through the front end face of the base and extend into the rear end face of the base. Using the above technical solution, the measuring tape can be suspended and stored using a hook. When measuring shrub plots, the device is first removed, and then the pull block is pulled out by hand. After being pulled to the appropriate position, the first limit block is pushed to fix the tape measure. After the measurement is completed, the tape measure is released, and it will automatically retract under the action of the spring. During the tape measure retraction process, the brush can clean the solid impurities on the surface of the tape measure to ensure that the surface of the tape measure is always clean. After the solid impurities on the surface of the tape measure are cleaned, the two moisture-absorbing cottons can also absorb liquid impurities on the surface of the tape measure that cannot be cleaned by the brush, preventing moisture from entering the inside of the spring and corroding the tape measure and causing damage. The brush and moisture-absorbing cotton need to be replaced regularly to prevent damage to the brush and moisture-absorbing cotton after long-term use, so as to achieve the expected use effect.

[0006] Furthermore, the quick-disassembly structure includes a housing, the interior of which is provided with a third sliding groove, a spring is fixedly connected to the center of the lower inner wall of the third sliding groove, a third sliding block is fixedly connected to the other end of the spring inside the third sliding groove, a cover is slidably connected to the front end face of the housing, a bolt is provided on the front end face of the cover, and a hook is fixedly connected to the outside of the bolt. With the above technical solution, when the equipment is not in use, the internal condition of the quick disassembly structure can be observed by pulling the third sliding block inside the third sliding groove. After the observation is completed, the third sliding block returns to its original position under the action of the spring force, so that the internal condition of the quick disassembly structure can be cleaned and maintained in a timely manner. When cleaning and maintenance are required, the cover can be taken out by rotating the bolts fixed to the hook, and then the first limiting post on the pull block can be taken out, and then the entire coil spring can be taken out, so as to carry out a more convenient and comprehensive cleaning and maintenance of the internal condition of the quick disassembly structure.

[0007] Furthermore, the lower end face of the quick-disassembly structure is provided with a first sliding groove, a first sliding block is slidably connected inside the first sliding groove, a movable fixing plate is fixedly connected to the lower end face of the first sliding block, the lower end face of the base is provided with a second sliding groove, and a fixing block is fixedly connected to the lower end face of the quick-disassembly structure at a position away from the center of the base. With the above technical solution, when it is necessary to measure small-diameter shrubs, the significance and accuracy of using a measuring tape will not meet the requirements. At this time, the small-diameter shrub can be placed between the fixed block and the movable fixed plate, and then the second sliding block can be pulled to slide inside the second sliding groove, thereby pushing the first sliding block fixedly connected to the movable fixed plate to slide inside the first sliding groove, thereby gradually clamping the small-diameter shrub, and then measuring the small-diameter shrub on the scale line built into the lower end of the outer shell.

[0008] Furthermore, a fixing post is fixedly connected to the center of the rear inner wall of the quick-disassembly structure, a coil spring is spirally sleeved on the outer side of the fixing post, the front end face of the fixing post passes through the rear end face of the cover and extends to the outside of the bolt, a measuring tape is fixedly connected to the output end of the coil spring, and a first limiting block is provided on the end face of the outer shell near the center of the base. The above technical solution facilitates the measurement of shrub quadrats.

[0009] Furthermore, a pull block is fixedly connected to the end face of the measuring tape away from the center of the base. The end face of the measuring tape away from the center of the base passes through the end face of the pull block near the center of the base and extends into the interior of the pull block. First limiting posts are provided on both sides of the upper end face of the pull block. The lower end faces of the two first limiting posts pass through the upper end face of the pull block and extend into the lower end face of the pull block. The above technical solution makes it easy to pull the measuring tape.

[0010] Furthermore, a second sliding block is slidably connected inside the second sliding groove, and the second sliding block is fixedly connected to the center of the end face of the movable fixing plate near the center of the base at the end face away from the center of the base. The above technical solution facilitates the movement of the movable fixing plate towards the fixing block to clamp small-diameter shrubs.

[0011] This utility model has the following beneficial effects: 1. In this utility model, when the measuring tape used for shrub quadrat surveys is released after measurement, the tape will automatically retract under the action of a spring. During the tape retraction process, the brush can clean the solid impurities on the surface of the tape to ensure that the surface of the tape remains clean. After the solid impurities on the surface of the tape are cleaned, the two moisture-absorbing cottons can also absorb the liquid impurities on the surface of the tape that cannot be cleaned by the brush, making the surface of the tape even cleaner.

[0012] 2. In this utility model, the measuring ruler device used for shrub quadrat surveys can be used to observe the internal condition of the quick-disassembly structure by pulling the third sliding block inside the third sliding groove when not in use. After observation, the third sliding block returns to its original position under the action of spring force, so as to clean and maintain the internal condition of the quick-disassembly structure in a timely manner. When cleaning and maintenance are required, the cover can be taken out by rotating the bolt fixed to the hook, and then the first limiting post on the pull block can be taken out, and then the entire coil spring can be taken out, so as to carry out a more convenient and comprehensive cleaning and maintenance of the internal condition of the quick-disassembly structure.

[0013] 3. In this utility model, when it is necessary to measure small-diameter shrubs, the significance and accuracy of using a measuring tape will not meet the requirements. At this time, the small-diameter shrub can be placed between the fixed block and the movable fixed plate, and then the second sliding block can be pulled to slide inside the second sliding groove, thereby pushing the first sliding block fixedly connected to the movable fixed plate to slide inside the first sliding groove, thereby gradually clamping the small-diameter shrub, and then measuring the small-diameter shrub on the scale line at the lower end of the outer shell. Attached Figure Description

[0014] Figure 1 A three-dimensional view of a measuring ruler for shrub quadrat surveys proposed in this utility model; Figure 2 This is a frontal sectional view of a measuring ruler for shrub quadrat surveys proposed in this utility model; Figure 3 This is a front view of a measuring ruler for shrub quadrat surveys proposed in this utility model; Figure 4 This is a bottom view of a measuring ruler used for shrub quadrat surveys, as proposed in this utility model. Figure 5 This is a side sectional view of a measuring ruler for shrub quadrat surveys proposed in this utility model.

[0015] Legend: 1. Base; 2. Pull block; 3. First limiting post; 4. Cleaning and fixing structure; 5. First limiting block; 6. Quick disassembly structure; 7. Coil spring; 8. Fixing post; 401 Fixed block; 402 First sliding groove; 403 First sliding block; 404 Movable fixed plate; 405 Second sliding block; 406 Measuring tape; 407 Brush; 408 Moisture-absorbing cotton; 409 Second limiting post; 410 Second limiting block; 411 Second sliding groove; 601. Outer shell; 602. Third sliding block; 603. Third sliding groove; 604. Spring; 605. Hook; 606. Bolt; 607. Cover. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figure 1-5 The present invention provides an embodiment of a measuring ruler for shrub quadrat surveys, comprising a base 1 and a quick-release structure 6, wherein the base 1 and the quick-release structure 6 are fixedly connected, and a cleaning and fixing structure 4 is fixedly connected inside the base 1.

[0018] The cleaning and fixing structure 4 includes two brushes 407. The end faces of the two brushes 407, which are close to each other, pass through the upper and lower end faces of the base 1 and extend into the interior of the base 1. Second limiting blocks 410 are provided at both the front and rear ends of the two brushes 407 on the upper and lower end faces of the base 1. Second limiting posts 409 are provided at the center of the front and rear end faces of the four second limiting blocks 410. The other ends of the four second limiting posts 409 pass through the front and rear end faces of the four second limiting blocks 410 and extend into the front and rear end faces of the two brushes 407. Two absorbent cotton 408 are provided near the center of the front face of the base 1. The rear ends of the two absorbent cotton 408 pass through the front face of the base 1 and extend into the rear face of the base 1. During use, the measuring ruler can be suspended and stored using hooks 605. When measuring shrub quadrats, the device is first removed, and then pulled by hand. Block 2 is pulled out. When it is pulled out to the appropriate position, the first limit block 5 is pushed to fix the measuring tape 406. After the measurement is completed, the measuring tape 406 is released, and then the measuring tape 406 will be automatically retracted under the action of the coil spring 7. During the retraction of the measuring tape 406, the brush can clean the solid impurities on the surface of the measuring tape 406 to ensure that the surface of the measuring tape 406 is always clean. After the solid impurities on the surface of the measuring tape 406 are cleaned, the two moisture-absorbing cotton 408 set at the rear end can also absorb the liquid impurities on the surface of the measuring tape 406 that cannot be cleaned by the brush 407, preventing moisture from entering the coil spring 7 and thus corroding the measuring tape 406 and causing damage. The brush 407 and the moisture-absorbing cotton 408 need to be replaced regularly to prevent the brush 407 and the moisture-absorbing cotton 408 from being damaged after long-term use and failing to achieve the expected use effect.

[0019] like Figure 1 , 2As shown in Figures 3, 4, and 5, the quick-disassembly structure 6 includes a housing 601. A third sliding groove 603 is provided inside the housing 601. A spring 604 is fixedly connected to the center of the lower inner wall of the third sliding groove 603. A third sliding block 602 is fixedly connected to the other end of the spring 604 inside the third sliding groove 603. A cover 607 is slidably connected to the front end of the housing 601. A bolt 606 is provided on the front end of the cover 607. A hook 605 is fixedly connected to the outside of the bolt 606. When the equipment is not in use, the internal condition of the quick-disassembly structure 6 can be observed by pulling the third sliding block 602 inside the third sliding groove 603. After observation, the third sliding block 602 returns to its original position under the action of the spring force, allowing for timely cleaning and maintenance of the interior of the quick-disassembly structure 6. When cleaning and maintenance are required, the cover 607 can be removed by rotating the bolt 606 fixedly connected to the hook 605, and then the first limiting post 3 on the pull block 2 can be removed, allowing for more convenient and comprehensive cleaning and maintenance of the interior of the quick-disassembly structure 6.

[0020] like Figure 1 , 2 As shown in Figures 3 and 4, the lower end face of the quick-release structure 6 is provided with a first sliding groove 402. A first sliding block 403 is slidably connected inside the first sliding groove 402. A movable fixing plate 404 is fixedly connected to the lower end face of the first sliding block 403. The lower end face of the base 1 is provided with a second sliding groove 411. A fixing block 401 is fixedly connected to the lower end face of the quick-release structure 6 at a position away from the center of the base 1. When it is necessary to measure a small-diameter shrub, the significance and accuracy of using a measuring tape 406 will not meet the requirements. At this time, the small-diameter shrub can be placed between the fixing block 401 and the movable fixing plate 404. Then, by pulling the second sliding block 405 to slide inside the second sliding groove 411, the first sliding block 403, which is fixedly connected to the movable fixing plate 404, will slide inside the first sliding groove 402, thereby gradually clamping the small-diameter shrub. Then, the small-diameter shrub can be measured on the scale line on the lower end of the outer shell 601.

[0021] like Figure 1 , 2 As shown in Figures 3 and 5, a fixing post 8 is fixedly connected to the center of the rear inner wall of the quick-disassembly structure 6. A coil spring 7 is spirally sleeved on the outside of the fixing post 8. The front end face of the fixing post 8 passes through the rear end face of the cover 607 and extends to the outside of the bolt 606. A measuring tape 406 is fixedly connected to the output end of the coil spring 7. A first limiting block 5 is provided on the end face of the outer shell 601 near the center of the base 1 to facilitate the measurement of shrub quadrats.

[0022] like Figure 1 , 2As shown in Figures 3 and 4, a pull block 2 is fixedly connected to the end face of the measuring tape 406 away from the center of the base 1. The end face of the measuring tape 406 away from the center of the base 1 passes through the end face of the pull block 2 near the center of the base 1 and extends into the interior of the pull block 2. A first limiting post 3 is provided on both sides of the upper end face of the pull block 2. The lower end face of the two first limiting posts 3 passes through the upper end face of the pull block 2 and extends into the lower end face of the pull block 2, which facilitates pulling the measuring tape 406.

[0023] like Figure 1 , 2 As shown in Figures 3, 4, and 5, a second sliding block 405 is slidably connected inside the second sliding groove 411. The second sliding block 405 is fixedly connected to the center of the end face away from the center of the base 1 at the center of the end face of the movable fixing plate 404 near the center of the base 1, which facilitates pushing the movable fixing plate 404 to move towards the fixing block to clamp the small-diameter shrub.

[0024] Working principle: The measuring tape 406 can be suspended and stored using hook 605. When measuring shrub plots, first remove the device, then pull the pull block 2 by hand to extend it. Once extended to the appropriate position, push the first limit block 5 to fix the tape measure 406. After measurement, release the tape measure 406, which will automatically retract under the action of the spring 7. During the retraction process, the brush cleans solid impurities from the surface of the tape measure 406 to ensure it remains clean. After cleaning the solid impurities, the two absorbent cotton 408 at the rear end absorb liquid impurities that the brush 407 cannot remove, preventing moisture from entering the spring 7 and corroding the tape measure 406. The brush 407 and absorbent cotton 408 need to be replaced regularly to prevent damage after prolonged use and ensure optimal performance.

[0025] When the equipment is not in use, the internal condition of the quick-disassembly structure 6 can be observed by pulling the third sliding block 602 inside the third sliding groove 603. After observation, the third sliding block 602 returns to its original position under the action of the spring force, so that the internal condition of the quick-disassembly structure 6 can be cleaned and maintained in a timely manner. When cleaning and maintenance are required, the cover 607 can be taken out by rotating the bolt 606 fixedly connected to the hook 605, and then the first limiting post 3 on the pull block 2 can be taken out, and then the entire coil spring 7 can be taken out, and then the internal condition of the quick-disassembly structure 6 can be cleaned and maintained more conveniently and comprehensively.

[0026] When it is necessary to measure small-diameter shrubs, the measurement using a measuring tape 406 will not meet the requirements in terms of significance and accuracy. In this case, the small-diameter shrub can be placed between the fixed block 401 and the movable fixed plate 404. Then, by pulling the second sliding block 405 and sliding it inside the second sliding groove 411, the first sliding block 403, which is fixedly connected to the movable fixed plate 404, will slide inside the first sliding groove 402, thereby gradually clamping the small-diameter shrub. Then, the small-diameter shrub can be measured using the scale line on the lower end of the outer shell 601.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A measuring ruler for shrub quadrat surveys, comprising a base (1) and a quick-release structure (6), characterized in that: The base (1) and the quick-release structure (6) are fixedly connected, and the cleaning and fixing structure (4) is fixedly connected inside the base (1). The cleaning fixing structure (4) includes two brushes (407). The end faces of the two brushes (407) close to each other pass through the upper and lower end faces of the base (1) and lead to the interior of the base (1). The upper and lower end faces of the base (1) are provided with second limiting blocks (410) at the front and rear ends of the two brushes (407). The center of the front and rear end faces of the four second limiting blocks (410) is provided with second limiting posts (409). The other end of the four second limiting posts (409) passes through the front and rear end faces of the four second limiting blocks (410) and leads to the front and rear end faces of the two brushes (407). The front end face of the base (1) is provided with two moisture-absorbing cotton (408) near the center. The rear end faces of the two moisture-absorbing cotton (408) pass through the front end face of the base (1) and lead to the rear end face of the base (1).

2. A measuring ruler for shrub quadrat surveys according to claim 1, characterized in that: The quick-release structure (6) includes a housing (601), the inside of which is provided a third sliding groove (603). A spring (604) is fixedly connected to the center of the lower inner wall of the third sliding groove (603). A third sliding block (602) is fixedly connected to the other end of the spring (604) inside the third sliding groove (603). A cover (607) is slidably connected to the front end face of the housing (601). A bolt (606) is provided on the front end face of the cover (607). A hook (605) is fixedly connected to the outside of the bolt (606).

3. A measuring ruler for shrub quadrat surveys according to claim 1, characterized in that: The lower end face of the quick disassembly structure (6) is provided with a first sliding groove (402), and a first sliding block (403) is slidably connected inside the first sliding groove (402). A movable fixing plate (404) is fixedly connected to the lower end face of the first sliding block (403). The lower end face of the base (1) is provided with a second sliding groove (411), and a fixing block (401) is fixedly connected to the lower end face of the quick disassembly structure (6) at a position away from the center of the base (1).

4. A measuring ruler for shrub quadrat surveys according to claim 1, characterized in that: A fixing post (8) is fixedly connected to the center of the rear inner wall of the quick disassembly structure (6). A coil spring (7) is spirally sleeved on the outer side of the fixing post (8). The front end face of the fixing post (8) passes through the rear end face of the cover (607) and extends to the outer side of the bolt (606). A measuring tape (406) is fixedly connected to the output end of the coil spring (7). A first limiting block (5) is provided on the side end face of the quick disassembly structure (6) near the center of the base (1).

5. A measuring ruler for shrub quadrat surveys according to claim 4, characterized in that: The end face of the measuring tape (406) away from the center of the base (1) is fixedly connected to a pull block (2). The end face of the measuring tape (406) away from the center of the base (1) passes through the end face of the pull block (2) near the center of the base (1) and extends into the interior of the pull block (2). A first limiting post (3) is provided on both sides of the upper end face of the pull block (2). The lower end faces of the two first limiting posts (3) pass through the upper end face of the pull block (2) and extend into the lower end face of the pull block (2).

6. A measuring ruler for shrub quadrat surveys according to claim 3, characterized in that: The second sliding groove (411) is slidably connected to a second sliding block (405), and the second sliding block (405) is fixedly connected to the center of the end face of the movable fixing plate (404) near the center of the base (1) away from the center of the base (1).

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