Grassland quadrat straight taking ruler

Abstract

The utility model discloses a grassland quadrat straight taking ruler which comprises a right-angle assembly. The measuring tape assembly is arranged in the right-angle assembly; the calibration module is fixedly connected with one end, far away from the right-angle assembly, of the measuring tape assembly so as to drive the measuring tape assembly to stretch and extend; the right-angle assembly comprises a right-angle piece main body, a sliding block clamping block is arranged on the side wall of the right-angle piece main body, the calibration module comprises a module main body, a fixed clamping block is arranged on the side wall of the module main body, and when the straight taking ruler shrinks, the fixed clamping block is clamped on the sliding clamping block so as to reduce the occupied space of the straight taking ruler; by arranging the sliding block clamping block and the fixed clamping block, the calibration module and the right-angle assemblies at the two ends are connected in a clamped mode through the clamping blocks, the occupied area is reduced, the tape assemblies are arranged in the right-angle assemblies, the measurement range is large and is not affected, in addition, the horizontal calibration structure can guarantee that the two ends of the tape body are horizontal, and the measurement precision is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of direct taking ruler, specifically, relates to a grassland quadrat direct taking ruler. BACKGROUND

[0002] The grassland quadrat direct taking ruler is a commonly used ecological field investigation tool, is used for quickly demarcating standard quadrats (such as 1m square area), to collect vegetation data (such as plant species, density, coverage, etc.) systematically. It is usually a foldable or telescopic rigid ruler with scale marks, which can assist in accurately positioning the quadrat boundary and ensure the uniformity of the sampling area size and shape. When using, the ruler is unfolded and laid on the grassland, and after the four corners are fixed, the range is framed, which is convenient for researchers to count the vegetation characteristics in the quadrat. The tool structure is light, adapts to complex terrain, and is widely used in ecological monitoring and biodiversity research in grassland, wetland and the like, and improves the data comparability and investigation efficiency.

[0003] Through retrieval, it is found that the utility model discloses a plant investigation quadrat ruler, including the main frame, it is square structure, the main frame inside is provided with a square cavity, the adjusting mechanism is connected in the square cavity inside, the adjusting mechanism still includes the mounting rod, the mounting rod upper surface is set up the sliding slot, the sliding slot inside is connected with the sliding block of sliding, the sliding block both sides are fixedly installed telescopic rod,

[0004] The above technical scheme solves the locking trouble of the traditional quadrat direct taking ruler, but there are still problems, such as the area measured is affected by the main frame, the main frame is inconvenient to place and carry if too large, and the area measured is limited if too small, therefore, we provide a grassland quadrat direct taking ruler to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a grassland quadrat direct taking ruler, and solves the above technical problems.

[0006] The utility model provides the following technical scheme:

[0007] A grassland quadrat direct taking ruler, comprising:

[0008] A right-angle assembly;

[0009] A tape measure assembly is arranged in the right-angle assembly;

[0010] A calibration module is fixedly connected with the end of the tape measure assembly away from the right-angle assembly to drive the tape measure assembly to stretch;

[0011] The right-angle assembly comprises a right-angle body, and a sliding block clamping block is arranged on the side wall of the right-angle body; the calibration module comprises a module body, and a fixed clamping block is arranged on the side wall of the module body; when the right-angle ruler is retracted, the fixed clamping block is clamped on the sliding clamping block, so that the occupied space of the right-angle ruler is reduced.

[0012] The right-angle ruler further comprises a horizontal calibration structure.

[0013] As a preferred technical scheme of the above technical scheme, the right-angle body is made of hard material and has a hollow structure, so that the tape measure assembly is arranged in the internal cavity.

[0014] As a preferred technical scheme of the above technical scheme, the tape measure assembly comprises a tape measure disc and a tape measure body surrounding the outer periphery of the tape measure disc.

[0015] As a preferred technical scheme of the above technical scheme, the tape measure disc is fixedly arranged in the right-angle body, and a sliding rail is further arranged on the side wall of the right-angle body, and the sliding clamping block is slidably arranged on the sliding rail; the sliding clamping block is pressed downward on the tape measure body, so that the tape measure body is fixed.

[0016] As a preferred technical scheme of the above technical scheme, the sliding rail is a I-shaped groove.

[0017] As a preferred technical scheme of the above technical scheme, a rubber anti-skid pad is arranged on the contact surface between the sliding clamping block and the tape measure body.

[0018] As a preferred technical scheme of the above technical scheme, the tape measure body is a steel tape.

[0019] As a preferred technical scheme of the above technical scheme, the fixed clamping block and the sliding clamping block are fixedly clamped with each other, and the cross sections of the two clamping blocks are inverted L-shaped.

[0020] As a preferred technical scheme of the above technical scheme, the horizontal calibration structure comprises a first horizontal needle arranged on the right-angle body and a second horizontal needle arranged on the module body, so as to ensure the horizontality of the two ends of the tape measure body.

[0021] As a preferred technical scheme of the above technical scheme, the module body is further provided with an avoiding groove corresponding to the horizontal calibration structure.

[0022] Compared with the prior art, the utility model has the advantages of:

[0023] In the utility model, the calibration module and the right-angle assemblies at two ends are clamped with each other through the clamping blocks, the occupied area is reduced, the tape measure assembly is arranged in the right-angle assembly, the measuring range is not affected, the horizontal calibration structure can ensure the horizontality of the two ends of the tape measure body, and the measuring precision is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the schematic diagram of the whole structure of the grassland quadrat straight ruler;

[0025] Figure 2 It is Figure 1 The enlarged structure schematic diagram of A in the middle;

[0026] Figure 3 It is the schematic diagram of the structure of the working state of the grassland quadrat straight ruler when measuring the grassland;

[0027] Figure 4 It is the schematic diagram of the structure of the non-working state of the grassland quadrat straight ruler;

[0028] Figure 5 It is Figure 4 The enlarged structure schematic diagram of B in the middle;

[0029] Figure 6 It is the schematic diagram of the whole structure of the tape measure assembly;

[0030] Figure 7 It is the schematic diagram of the whole structure of the calibration module.

[0031] In the figure: 100, right-angle assembly; 200, calibration module; 300, tape measure assembly;

[0032] 110, right-angle piece main body; 120, sliding clamping block; 120-1, rubber anti-skid pad; 130, sliding rail; 140, first horizontal needle;

[0033] 210, module main body; 220, fixed clamping block; 230, second horizontal needle; 240, avoiding groove;

[0034] 310, tape measure disc; 320, tape measure main body. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] As Figure 1 shown, the present application provides a technical solution: a grassland quadrat straight ruler, comprising a right-angle assembly 100, a calibration module 200, and a tape measure assembly 300 arranged in the right-angle assembly 100, the tail end of the tape measure assembly 300 is fixedly connected with the calibration module 200;

[0037] Among them, as Figure 2As shown, the right-angle assembly 100 comprises a right-angle body 110 made of hard material and having a hollow structure for placing the tape assembly 300, which is as shown Figure 6 As shown, the tape disc 310 is fixed in the right-angle body 110, and the tape body 320 is wound on the tape disc 310. The tape disc 310 is provided with a return torsion spring (not shown in the figure) for returning the tape body 320. The structure of the return torsion spring is commonly used in tapes and belongs to the prior art, and thus will not be described in detail. One end of the tape body 320 is fixedly connected to the calibration module 200, and the tape body 320 is pulled out and extended by the calibration module 200 (the grassland level of the measured area also needs to be ensured, that is, the level of the right-angle assembly 100 and the calibration module 200). The tape body 320 is provided with a scale for determining the extension length. Then, the tape body 320 needs to be fixed to prevent it from being retracted by the spring. The sliding block 120 is arranged on the side wall of the right-angle body 110. The sliding rail 130 corresponding to the sliding block 120 is arranged on the right-angle body 110. The sliding rail 130 can be a I-shaped sliding groove to prevent the sliding block 120 from falling off. The sliding block 120 is pressed downward on the tape body 320. In order to increase the friction, the contact surface between the sliding block 120 and the tape body 320 is provided with a rubber non-slip pad 120-1. The sliding block 120 is transitionally matched with the sliding rail 130 to facilitate providing a downward pressure on the tape body 320. The tape body 320 should also be made of steel. The extension of the remaining tape bodies 320 is completed according to the above steps, and the measurement is completed as shown Figure 3 As shown, a is the length of the right-angle body 110, b is the distance between a group of right-angle bodies 110 and the calibration module 200 (0 point in the middle of the module), and c is the distance between another group of right-angle bodies 110 and another group of calibration modules 200. According to these data, the area of the selected grassland is obtained.

[0038] As shown Figure 2 , Figure 5 and Figure 7 As shown, in order to ensure the level of both ends of the tape body 320, the first level needle 140 is fixedly arranged on the side wall of the right-angle body 110, and the same level needle is also arranged on the calibration module 200. The calibration module 200 comprises a module body 210. The second level needle 230 is fixedly arranged on one side of the module body 210 to ensure the level of both ends of the tape body 320. The first level needle 140 and the second level needle 230 form a level calibration structure to ensure the accuracy of the measurement data.

[0039] After the above test is completed, the right-angle assembly can be assembled as shown Figure 4The shown appearance reduces the occupied space, and thus Figure 7 As shown in the figure, a fixed clamping block 220 is also fixedly installed on the side wall of the module body 210, and the fixed clamping block 220 can be clamped to the sliding clamping block 120.

[0040] As shown in the figure, Figure 5 As shown in the figure, the module body 210 is also provided with an avoiding groove 240, which facilitates the placement of the first horizontal needle 140 and the second horizontal needle 230, and avoids the position conflict of the two needles.

[0041] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them.

Claims

1. A quadrat straightedge for grassland plots, characterized in that, Include: Right angle component (100); Tape measure component (300) is arranged in right angle component (100); Calibration module (200) is fixedly connected with the end of tape measure component (300) away from right angle component (100), to drive tape measure component (300) to stretch and extend; The right angle component (100) includes a right angle body (110), a sliding block (120) is arranged on the side wall of the right angle body (110), the calibration module (200) includes a module body (210), a fixed block (220) is arranged on the side wall of the module body (210), when the right angle ruler is contracted, the fixed block (220) is clamped on the sliding block (120), to reduce the occupied space of the right angle ruler; The right angle ruler further includes horizontal calibration structure.

2. The direct-to-quadrat grassland frame of claim 1, wherein: The right angle body (110) is made of hard material, and the inside is a hollow structure, so that the tape measure component (300) is arranged in the internal cavity.

3. The direct-to-quadrat field plot ruler of claim 1, wherein: The tape measure component (300) includes a tape measure disc (310), and a tape measure body (320) is arranged around the outer periphery of the tape measure disc (310).

4. The direct-to-quadrat field plotter of claim 3, wherein: The tape measure disc (310) is fixedly arranged in the right angle body (110), and a slide rail (130) is further formed in the side wall of the right angle body (110), the sliding block (120) is slidably arranged on the slide rail (130), and the sliding block (120) is pressed downward on the tape measure body (320), so that the tape measure body (320) is kept fixed.

5. The direct-to-quadrat field plotter of claim 4, wherein: The slide rail (130) is an I-shaped groove.

6. The direct-to-quadrat field plotter of claim 4, wherein: A rubber non-slip pad (120-1) is arranged on the contact surface between the sliding block (120) and the tape measure body (320).

7. A direct-reading quadrat for grassland according to claim 6, characterised in that: The tape measure body (320) is a steel tape.

8. The direct-to-quadrat field plot ruler of claim 1, wherein: The fixed block (220) and the sliding block (120) are fixedly clamped with each other, and the cross section of the two blocks is inverted L-shaped.

9. The direct-to-quadrat field plot ruler of claim 1, wherein: The horizontal calibration structure includes a first horizontal needle (140) and a second horizontal needle (230) arranged on the right angle body (110) and the module body (210) respectively, for ensuring the horizontality of the two ends of the tape measure body (320).

10. The direct-to-quadrat field plotter of claim 1, wherein: The module body (210) is further provided with an avoiding groove (240) corresponding to the horizontal calibration structure.

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