Coverage measuring device applied to field of grassland ecology

Abstract

The utility model belongs to the technical field of grassland ecology, and particularly relates to a coverage measuring device applied to the grassland ecology field, which comprises a first measuring frame and a second measuring frame hinged to the left end of the first measuring frame. The middle position of the right side of the first measuring frame and the middle position of the left side of the second measuring frame are fixedly connected with a handle. According to the coverage measuring device applied to the field of grassland ecology, when a grassland is measured, a rotating disc is rotated to drive a threaded rod to rotate until the threaded rod is taken down from a threaded groove, an arc-shaped pressing plate is taken down from the outer side of a supporting rod, and then a sleeve rod is rotated to be vertically downward around a circular shaft; then the supporting rod is rotated to enable the supporting rod to move while rotating on the inner side of the sleeve rod until the overall length of the sleeve rod and the supporting rod is adjusted to be required, the tip end of the supporting rod is inserted into the grassland ground at the measurement position, and then plants in the first measurement net and the second measurement net are counted.

Description

Technical Field

[0001] The utility model relates to the technical field of grassland ecology, in particular to a coverage measurement device applied in the grassland ecology field. Background Art

[0002] Vegetation cover is used to reflect the density of vegetation and the size of the area where plants carry out photosynthesis. The cover of a species is an important indicator for measuring its dominance in a community. Cover can also indirectly reflect the leaf area index. Cover is generally measured using the cover frame method. For example, when measuring grassland vegetation cover, a handheld measuring frame is used to count the number of plants directly below the frame holes at the required detection position. The ratio of the total number of plants to the number of frame holes is the cover value here.

[0003] The commonly used measurement method is the cover frame method. Surveyors often need to hold the measuring frame to measure at the required detection position, because fixed measuring frames are often bulky and it is often very laborious to carry a fixed measuring frame.

[0004] For example, Chinese patent CN219037874U discloses a coverage measurement device for grassland ecology. By adjusting two connecting blocks, two plug plates are indirectly inserted into corresponding second slide grooves, thereby closing the first measurement frame and the second measurement frame. After that, the first handle and the second handle can be carried by hand to save effort, thereby facilitating outdoor carrying and use by measurement personnel.

[0005] However, the length of the support column in the measuring device is fixed, so that the measuring device cannot be supported to a suitable height for measuring according to the length of the grass.

[0006] Therefore, we urgently need to provide a coverage measurement device with adjustable support height for application in grassland ecology. Utility Model Content

[0007] The purpose of the utility model is to provide a coverage measuring device for use in the field of grassland ecology, so as to solve the problem that the length of the support column in the measuring device proposed in the above-mentioned background technology is fixed, so that the measuring device cannot be supported to a suitable height for measurement according to the length of the grass.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coverage measurement device for use in the field of grassland ecology, comprising a first measuring frame and a second measuring frame, the second measuring frame being hinged at the left end of the first measuring frame, a handle being fixedly connected to the middle position of the right side of the first measuring frame and the middle position of the left side of the second measuring frame, a first measuring net being fixedly connected to the inner side of the first measuring frame, a second measuring net being fixedly connected to the inner side of the second measuring frame, a measuring mechanism being connected to the inner and outer ends of the first and second measuring frames, the measuring mechanism comprising a supporting unit and a fixing unit, the supporting unit being arranged at the front and rear ends inside the first measuring frame, and the fixing unit being arranged at the outer sides of the first and second measuring frames.

[0009] The supporting unit comprises a circular shaft, a sleeve rod, a supporting rod, an arc-shaped pressure plate, a threaded rod and a turntable, wherein the circular shaft is connected to the front and rear ends inside the first measuring frame, the sleeve rod is connected to the outer end of the circular shaft, the supporting rod is connected to the inside of the sleeve rod, the arc-shaped pressure plate is connected to the front and rear ends inside the first measuring frame and the second measuring frame, the threaded rod is connected to the internal middle position of the arc-shaped pressure plate, and the turntable is fixedly connected to the upper end of the threaded rod.

[0010] A further improvement is that grooves are provided above the front and rear ends of the first and second measuring frames, a rotation hole is provided in the middle of one end of the sleeve rod, the circular shaft is fixed to the left and right ends of the inner side of the groove, the outer side of the circular shaft is rotationally connected to the inner side of the rotation hole, and the outer side of the sleeve rod is slidingly connected to the inner side of the groove, so that the sleeve rod can rotate around the circular shaft.

[0011] A further improvement is that the outer side of the support rod is provided with an outer thread, the inner side of the sleeve rod is provided with an inner thread, and the inner side of the sleeve rod is threadedly connected with the outer side of the support rod. Thus, by rotating the support rod located inside the sleeve rod, the support rod can be moved relative to the sleeve rod, thereby changing the overall length of the sleeve rod and the support rod, so as to adjust the support height of the measuring device.

[0012] A further improvement is that a threaded hole is provided in the middle position of the arc-shaped pressure plate, a threaded groove is provided in the middle position below the groove inside the first measuring frame and the second measuring frame, the outer side of the threaded rod is threadedly connected to the inner side of the threaded hole and the threaded groove, and the lower side of the arc-shaped pressure plate is in contact with the end of the outer side of the support rod away from the sleeve rod. Thus, after the sleeve rod and the support rod are rotated into the groove around the circular axis, the arc-shaped pressure plate is placed on the end of the outer side of the support rod away from the sleeve rod, and then the threaded rod is threadedly connected to the threaded hole inside the arc-shaped pressure plate and then threadedly connected to the threaded groove, so that the arc-shaped pressure plate can be fixed to the end of the outer side of the support rod away from the sleeve rod, so that the support rod and the sleeve rod are fixed to the groove, and the sleeve rod and the support rod are stored.

[0013] A further improvement is that the fixing unit includes a connecting plate, a spring, an insert rod and a connecting frame, the connecting plate is fixedly connected to the middle position of the left side of the second measuring frame, the spring is connected to the inside of the connecting plate, the insert rod is fixedly connected to one end of the spring, and the connecting frame is fixedly connected to the middle position of the right side of the first measuring frame.

[0014] A further improvement is that circular grooves are provided at the front and rear ends of the upper part of the connecting plate, and plug holes are provided at the front and rear ends of the connecting frame. The outer side of the end of the spring away from the plug rod is fixedly connected to the innermost end of the inner side of the circular groove, the outer side of the plug rod is slidably connected to the inner side of the circular groove, the end of the plug rod away from the spring is plugged into the inner side of the plug hole, and the outer side of the upper end of the connecting plate is slidably connected to the inner side of the connecting frame. Therefore, after the second measuring frame is rotated to the upper side of the first measuring frame and the connecting plate slides to the inner side of the connecting frame, the plug rod is pushed out of the circular groove by the spring rebound until the end of the plug rod away from the spring moves to the plug hole inside the connecting frame, so that the connecting plate and the connecting frame can be relatively fixed, so that the first measuring frame is fixed to the upper end of the second measuring frame, and then the first measuring frame and the second measuring frame can be lifted by holding the handle, making the measuring device very portable.

[0015] A further improvement is that the end of the support rod away from the sleeve rod is a pointed end, so that the support rod can be more conveniently inserted into the ground to support the measuring device.

[0016] In summary, the present application discloses a coverage measurement device applicable to the field of grassland ecology.

[0017] The technical solution rotates the support rod located inside the sleeve rod to move the support rod relative to the sleeve rod, thereby changing the overall length of the sleeve rod and the support rod, so as to adjust the support height of the measuring device.

[0018] Furthermore, after the second measuring frame is rotated to the upper side of the first measuring frame and the connecting plate slides to the inner side of the connecting frame, the insertion rod is pushed out of the circular groove by the spring rebound until the end of the insertion rod away from the spring moves into the socket inside the connecting frame. The connecting plate and the connecting frame can be relatively fixed, so that the first measuring frame is fixed to the upper end of the second measuring frame. Then, the first measuring frame and the second measuring frame can be lifted up by holding the handle, making the measuring device very portable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure after the main body of the utility model is unfolded;

[0020] Figure 2 This is a schematic diagram of the structure of the main body of the utility model after being stacked;

[0021] Figure 3 It is a schematic diagram of the structure of the groove of the utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the sleeve rod of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the arc-shaped pressing plate of the utility model;

[0024] Figure 6 It is a structural schematic diagram of the fixing unit of the utility model.

[0025] In the figure: 1, first measuring frame; 2, second measuring frame; 3, handle; 4, first measuring net; 5, second measuring net; 601, round shaft; 602, sleeve rod; 603, support rod; 604, arc pressure plate; 605, threaded rod; 606, turntable; 701, connecting plate; 702, spring; 703, plug rod; 704, connecting frame. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 6 , the utility model provides a technical solution:

[0028] Embodiment 1:

[0029] A coverage measurement device for use in grassland ecology comprises a first measuring frame 1 and a second measuring frame 2, wherein the second measuring frame 2 is hinged to the left end of the first measuring frame 1, a handle 3 is fixedly connected to the middle position of the right side of the first measuring frame 1 and the middle position of the left side of the second measuring frame 2, a first measuring net 4 is fixedly connected to the inner side of the first measuring frame 1, a second measuring net 5 is fixedly connected to the inner side of the second measuring frame 2, and measuring mechanisms are connected to the inner and outer ends of the first measuring frame 1 and the second measuring frame 2, wherein the measuring mechanisms comprise a supporting unit and a fixing unit, wherein the supporting unit is arranged at the front and rear ends inside the first measuring frame 1, and the fixing unit is arranged at the outer sides of the first measuring frame 1 and the second measuring frame 2.

[0030] The support unit includes a circular shaft 601, a sleeve rod 602, a support rod 603, an arc-shaped pressing plate 604, a threaded rod 605 and a rotating disk 606. The circular shaft 601 is connected to the front and rear ends of the first measuring frame 1, and the sleeve rod 602 is connected to the outer end of the circular shaft 601. Grooves are provided above the front and rear ends of the first measuring frame 1 and the second measuring frame 2. A rotating hole is provided at the middle position of one end of the sleeve rod 602. The circular shaft 601 is fixed to the left and right ends of the inner side of the groove. The outer side of the circular shaft 601 is rotatably connected to the inner side of the rotating hole, and the outer side of the sleeve rod 602 is slidably connected to the inner side of the groove. Thus, the sleeve rod 602 can rotate around the circular shaft 601.

[0031] The support rod 603 is connected to the inside of the sleeve rod 602, and an external thread is provided on the outside of the support rod 603, and an internal thread is provided on the inside of the sleeve rod 602, and the inside of the sleeve rod 602 is threadedly connected with the outside of the support rod 603. Therefore, by rotating the support rod 603 located inside the sleeve rod 602, the support rod 603 can be moved relative to the sleeve rod 602, so that the overall length of the sleeve rod 602 and the support rod 603 is changed, so as to adjust the support height of the measuring device.

[0032] The arc-shaped pressing plate 604 is connected to the front and rear ends of the first measuring frame 1 and the second measuring frame 2, the threaded rod 605 is connected to the middle position of the arc-shaped pressing plate 604, and the rotating disk 606 is fixedly connected to the upper end of the threaded rod 605. A threaded hole is provided in the middle position of the arc-shaped pressing plate 604, and a threaded groove is provided in the middle position below the groove inside the first measuring frame 1 and the second measuring frame 2. The outer side of the threaded rod 605 is threadedly connected to the inner side of the threaded hole and the threaded groove, and the lower side of the arc-shaped pressing plate 604 abuts against the outer end of the support rod 603 away from the sleeve rod 602. After rotating the sleeve rod 602 and the support rod 603 into the groove around the circular axis 601, the arc pressure plate 604 is placed on the outer side of the support rod 603 away from the end of the sleeve rod 602, and then the threaded rod 605 is threadedly connected to the threaded hole inside the arc pressure plate 604 and then threaded into the threaded groove, so that the arc pressure plate 604 can be fixed to the outer side of the support rod 603 away from the end of the sleeve rod 602, so that the support rod 603 and the sleeve rod 602 are fixed to the groove, completing the storage of the sleeve rod 602 and the support rod 603.

[0033] Embodiment 2:

[0034] On the basis of Example 1: the fixing unit includes a connecting plate 701, a spring 702, an insertion rod 703 and a connecting frame 704, the connecting plate 701 is fixedly connected to the middle position of the left side of the second measuring frame 2, the spring 702 is connected to the inside of the connecting plate 701, the insertion rod 703 is fixedly connected to one end of the spring 702, and the connecting frame 704 is fixedly connected to the middle position of the right side of the first measuring frame 1.

[0035] Circular grooves are provided at the front and rear ends of the upper interior of the connecting plate 701, and insertion holes are provided at the front and rear ends of the interior of the connecting frame 704. The outer side of the end of the spring 702 away from the insertion rod 703 is fixedly connected to the innermost end of the inner side of the circular groove, the outer side of the insertion rod 703 is slidably connected to the inner side of the circular groove, the end of the insertion rod 703 away from the spring 702 is plugged into the inner side of the insertion hole, and the outer side of the upper end of the connecting plate 701 is slidably connected to the inner side of the connecting frame 704. Therefore, after the second measuring frame 2 is rotated to the upper side of the first measuring frame 1 and the connecting plate 701 slides to the inner side of the connecting frame 704, the spring 702 rebounds to push the insertion rod 703 out of the circular groove until the end of the insertion rod 703 away from the spring 702 moves to the socket inside the connecting frame 704. Then, the connecting plate 701 and the connecting frame 704 can be relatively fixed, so that the first measuring frame 1 is fixed to the upper end of the second measuring frame 2. Then, the handle 3 can be grasped to lift the first measuring frame 1 and the second measuring frame 2, making the measuring device very portable.

[0036] Embodiment three:

[0037] On the basis of the first embodiment: the end of the support rod 603 away from the sleeve rod 602 is a tip, so that the support rod 603 can be more conveniently inserted into the ground to support the measuring device.

[0038] Working principle: When measuring the grassland, first rotate the turntable 606 to drive the threaded rod 605 to rotate, until the threaded rod 605 is removed from the threaded groove, then remove the arc pressure plate 604 from the outside of the support rod 603, and then rotate the sleeve rod 602 around the circular axis 601 to vertically downward, and then rotate the support rod 603 so that it is located on the inner side of the sleeve rod 602 and moves while rotating, until the overall length of the sleeve rod 602 and the support rod 603 is adjusted to the required length, insert the tip of the support rod 603 into the grassland ground at the measurement location, and then count the plants in the first measuring network 4 and the second measuring network 5.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A coverage measurement device for grassland ecology, comprising a first measurement frame (1) and a second measurement frame (2), wherein the second measurement frame (2) is hinged to the left end of the first measurement frame (1), and characterized in that: A handle (3) is fixedly connected at the middle position of the right side of the first measuring frame (1) and the middle position of the left side of the second measuring frame (2); a first measuring net (4) is fixedly connected to the inner side of the first measuring frame (1); a second measuring net (5) is fixedly connected to the inner side of the second measuring frame (2); and a measuring mechanism is connected to the inner and outer ends of the first measuring frame (1) and the second measuring frame (2); the measuring mechanism comprises a supporting unit and a fixing unit, the supporting unit is arranged at the front and rear ends of the first measuring frame (1), and the fixing unit is arranged at the outer sides of the first measuring frame (1) and the second measuring frame (2); The support unit comprises a circular shaft (601), a sleeve rod (602), a support rod (603), an arc-shaped pressure plate (604), a threaded rod (605) and a rotating disk (606); the circular shaft (601) is connected to the front and rear ends of the first measuring frame (1); the sleeve rod (602) is connected to the outer end of the circular shaft (601); the support rod (603) is connected to the inside of the sleeve rod (602); the arc-shaped pressure plate (604) is connected to the front and rear ends of the first measuring frame (1) and the second measuring frame (2); the threaded rod (605) is connected to the middle position of the arc-shaped pressure plate (604); and the rotating disk (606) is fixedly connected to the upper end of the threaded rod (605).

2. The coverage measurement device for grassland ecology according to claim 1, characterized in that: Grooves are provided above the front and rear ends of the first measuring frame (1) and the second measuring frame (2); a rotating hole is provided in the middle of one end of the sleeve rod (602); the circular shaft (601) is fixed to the left and right ends of the inner side of the groove; the outer side of the circular shaft (601) is rotatably connected to the inner side of the rotating hole; and the outer side of the sleeve rod (602) is slidably connected to the inner side of the groove.

3. The coverage measurement device for grassland ecology according to claim 1, characterized in that: The outer side of the support rod (603) is provided with an external thread, the inner side of the sleeve rod (602) is provided with an internal thread, and the inner side of the sleeve rod (602) is threadedly connected to the outer side of the support rod (603).

4. The coverage measurement device for grassland ecology according to claim 1, characterized in that: A threaded hole is provided in the middle of the interior of the arc-shaped pressure plate (604); a threaded groove is provided in the middle of the interior of the first measuring frame (1) and the second measuring frame (2) below the groove; the outer side of the threaded rod (605) is threadedly connected to the inner side of the threaded hole and the threaded groove; the lower side of the arc-shaped pressure plate (604) abuts against an end of the outer side of the support rod (603) away from the sleeve rod (602).

5. The coverage measurement device for grassland ecology according to claim 1, characterized in that: The fixing unit comprises a connecting plate (701), a spring (702), an insert rod (703) and a connecting frame (704); the connecting plate (701) is fixedly connected to the middle position of the left side of the second measuring frame (2); the spring (702) is connected to the inside of the connecting plate (701); the insert rod (703) is fixedly connected to one end of the spring (702); and the connecting frame (704) is fixedly connected to the middle position of the right side of the first measuring frame (1).

6. The coverage measurement device for grassland ecology according to claim 5, characterized in that: Circular grooves are provided at the front and rear ends of the upper interior of the connecting plate (701), and insertion holes are provided at the front and rear ends of the interior of the connecting frame (704). The outer side of one end of the spring (702) away from the insertion rod (703) is fixedly connected to the innermost end of the inner side of the circular groove, the outer side of the insertion rod (703) is slidably connected to the inner side of the circular groove, the end of the insertion rod (703) away from the spring (702) is plugged into the inner side of the insertion hole, and the outer side of the upper end of the connecting plate (701) is slidably connected to the inner side of the connecting frame (704).

7. The coverage measurement device for grassland ecology according to claim 1, characterized in that: The end of the support rod (603) away from the sleeve rod (602) is a pointed end.

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