Portable efficient grassland field monitoring quadrat frame

Abstract

The utility model discloses a portable efficient grassland field monitoring quadrat frame, which relates to the technical field of quadrat frames, and comprises a plurality of main scale belts which are flexible belts and can be folded and stored; a plurality of connecting pieces are arranged, and the plurality of main scale belts are sequentially connected end to end through the connecting pieces to form an annular belt-shaped structure; a positioning insertion hole is formed in the connecting piece; the multiple inserting rods can movably penetrate through the positioning inserting holes of the multiple connecting pieces in a one-to-one correspondence mode and are inserted into soil to be positioned, so that the multiple main scale belts are tensioned and straightened by fixing the connecting pieces, and a polygonal quadrat frame is formed. The device is convenient to carry and arrange, firm in fixation and capable of improving calculation efficiency and precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to quadrat frame technical field, especially a kind of portable high-efficiency grassland field monitoring quadrat frame. BACKGROUND

[0002] In grassland ecological comprehensive monitoring work, plant species number, plant coverage, plant yield as important index need to be accurately and timely obtained. However, in actual work, the 1m*1m quadrat frame used has many inconveniences, resulting in low work efficiency. The quadrat frame used at present is not convenient to carry and lay out, and there are problems such as being unable to be fixed or being not fixed firmly when used on complex terrain.

[0003] Chinese patent (authorized announcement number CN 215894566 U, authorized announcement date 2022.02.22) discloses a convenient coverage determination quadrat frame; including frame group and quadrat frame body, frame group is composed of at least two quadrat frame bodies, the outer surface of each quadrat frame body is provided with a mounting groove, a first magnet block is fixedly connected in each mounting groove, and each quadrat frame body is spliced into a frame group by the first magnet block. It can be seen that the quadrat frame is converted into multiple small quadrat frames, which plays a certain role in reducing the volume. However, the quadrat frame body is composed of four long rods, and it is still very heavy and inconvenient to carry when carrying multiple quadrat frame bodies. In addition, the quadrat frame body composed of four long rods is prone to deformation, which leads to difficulty in splicing and reduces the splicing precision.

[0004] Therefore, how to provide a portable high-efficiency grassland field monitoring quadrat frame, which can be conveniently carried and laid out, firmly fixed and can improve the calculation efficiency and precision is a problem that needs to be solved by those skilled in the art. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a portable high-efficiency grassland field monitoring quadrat frame, which aims to solve the technical problems of the above-mentioned traditional quadrat frame, which is not convenient to store, carry and lay out, has poor fixing reliability and low calculation efficiency and precision.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a portable high-efficiency grassland field monitoring quadrat frame, which comprises:

[0008] The main scale band is flexible and can be folded for storage.

[0009] The connecting piece is connected in sequence to form a ring-shaped belt structure.

[0010] The insertion rods are multiple and can be correspondingly inserted into the positioning insertion holes of the connecting pieces and into the soil to position, so as to fix the connecting pieces and tension the multiple main scale bands, thereby forming a polygonal quadrat frame.

[0011] The portable efficient grassland field monitoring quadrat frame of the utility model adopts flexible material to manufacture the main scale band, a plurality of main scale bands are connected in series through the connecting pieces to form a ring-shaped band structure, and the main scale band can be freely rolled and folded for storage, and the quadrat frame is light in weight and convenient for users to carry. When in use, the main scale band is unfolded and laid on the ground in a polygonal shape, each main scale band is a side frame of the polygonal quadrat frame, and the insertion rods are inserted into the positioning insertion holes of the corresponding connecting pieces and into the soil to position the connecting pieces. Before the insertion rods are inserted, the two adjacent connecting pieces are pulled to tension the main scale band between the two connecting pieces, and then the insertion rods are inserted to fix the connecting pieces. After the main scale band is tensioned, the polygonal quadrat frame is formed. The quadrat frame is simple and convenient to use, has strong adaptability to complex terrains, is fixed firmly, can be arranged on the ground, and the main scale band has scales, so that the calculation efficiency and accuracy are improved.

[0012] As a further improvement of the above technical solution, the main scale band comprises a first main scale band, a second main scale band, a third main scale band and a fourth main scale band; the connecting piece comprises a first connecting piece, a second connecting piece, a third connecting piece and a fourth connecting piece; the first connecting piece is provided with a first positioning insertion hole, the second connecting piece is provided with a second positioning insertion hole, the third connecting piece is provided with a third positioning insertion hole, and the fourth connecting piece is provided with a fourth positioning insertion hole; the insertion rod comprises a first insertion rod, a second insertion rod, a third insertion rod and a fourth insertion rod;

[0013] The first main scale band and the third main scale band are of the same length; the second main scale band and the fourth main scale band are of the same length; one end of the first main scale band is connected to the first connecting piece, the other end of the first main scale band is connected to the second connecting piece, one end of the second main scale band is connected to the second connecting piece, the other end of the second main scale band is connected to the third connecting piece, one end of the third main scale band is connected to the third connecting piece, the other end of the third main scale band is connected to the fourth connecting piece, one end of the fourth main scale band is connected to the fourth connecting piece, and the other end of the fourth main scale band is connected to the first connecting piece, so as to form a ring-shaped band structure; when the first connecting piece, the second connecting piece, the third connecting piece and the fourth connecting piece are away from each other, the first main scale band, the second main scale band, the third main scale band and the fourth main scale band can be tensioned and straightened to form a rectangular quadrat frame;

[0014] The first insertion rod is movably inserted into the soil through the first positioning hole to position the first connecting piece; the second insertion rod is movably inserted into the soil through the second positioning hole to position the second connecting piece; the third insertion rod is movably inserted into the soil through the third positioning hole to position the third connecting piece; and the fourth insertion rod is movably inserted into the soil through the fourth positioning hole to position the fourth connecting piece.

[0015] The beneficial effect of the above technical solution is that four main scale bands can be used to quickly construct a rectangular quadrat frame for efficient vegetation coverage calculation.

[0016] As a further improvement of the above technical solution, a secondary scale band is further included, which is a flexible band and can be folded for storage; and a magnetic attraction piece one is installed at both ends of the secondary scale band.

[0017] A magnetic attraction piece two is installed at the middle part of each of the first, second, third and fourth main scale bands, and can be magnetically connected with the magnetic attraction piece one.

[0018] The magnetic attraction piece one at both ends of the secondary scale band is magnetically connected with the magnetic attraction piece two at the middle part of the first and third main scale bands, and is straightened to divide the rectangular quadrat frame into two rectangular sampling areas one with the same shape and equal area; or the magnetic attraction piece one at both ends of the secondary scale band is magnetically connected with the magnetic attraction piece two at the middle part of the second and fourth main scale bands, and is straightened to divide the rectangular quadrat frame into two rectangular sampling areas two with the same shape and equal area.

[0019] The beneficial effect of the above technical solution is that on the basis of the rectangular quadrat frame constructed by the four main scale bands, the secondary scale band can be used to divide the rectangular quadrat frame into rectangular sampling areas one or two with the same shape and equal area, which is convenient for monitoring only 50% of the area.

[0020] As a further improvement of the above technical solution, the secondary scale band includes a first secondary scale band and a second secondary scale band; and the magnetic attraction piece one is installed at both ends of the first and second secondary scale bands.

[0021] When the magnetic attraction piece one at both ends of the first secondary scale band is magnetically connected with the magnetic attraction piece two at the middle part of the first and third main scale bands and is straightened, and the magnetic attraction piece one at both ends of the second secondary scale band is magnetically connected with the magnetic attraction piece two at the middle part of the second and fourth main scale bands and is straightened, the first and second secondary scale bands are vertically crossed and overlapped, and the rectangular quadrat frame is divided into four rectangular sampling areas three with the same shape and equal area.

[0022] The beneficial effects of the above technical scheme are that the auxiliary scale band one and the auxiliary scale band two can divide four rectangular sampling areas three with the same shape and equal area on the basis of the rectangular quadrat frame formed by the four main scale bands, facilitating the use when only 25% of the area is monitored.

[0023] As a further improvement of the above technical scheme, the lengths of the main scale band one, the main scale band two, the main scale band three and the main scale band four are all 1m, and the widths are the same and are 0.5cm-2cm.

[0024] The beneficial effects of the above technical scheme are that the lengths of the four main scale bands are all 1m, which can be quickly laid out into a simple 1x1m standard quadrat frame.

[0025] As a further improvement of the above technical scheme, the middle position of the auxiliary scale band one in the length direction is provided with a magnetic attraction piece three, and the middle position of the auxiliary scale band two in the length direction is provided with a magnetic attraction piece four; the magnetic attraction piece three and the magnetic attraction piece four can be magnetically connected to be fixed at the intersection position when the auxiliary scale band one and the auxiliary scale band two are vertically crossed and overlapped.

[0026] The beneficial effects of the above technical scheme are that the magnetic attraction piece three and the magnetic attraction piece four can stably connect the vertical intersection of the auxiliary scale band one and the auxiliary scale band two, improving the measurement accuracy.

[0027] As a further improvement of the above technical scheme, the magnetic attraction piece one, the magnetic attraction piece two, the magnetic attraction piece three and the magnetic attraction piece four are magnet pieces or iron pieces.

[0028] The beneficial effects of the above technical scheme are that when the magnetic attraction piece one and the magnetic attraction piece two or the magnetic attraction piece three and the magnetic attraction piece four are both magnet pieces, the magnetic connection force can be stronger; when one of the magnetic attraction piece one and the magnetic attraction piece two or one of the magnetic attraction piece three and the magnetic attraction piece four is a magnet piece and the other is an iron piece, the arrangement direction of the magnetic poles when installing the magnetic attraction piece does not need to be considered, which is more convenient for magnetic connection and fine adjustment of the position of the magnetic connection.

[0029] As a further improvement of the above technical scheme, the main scale band one, the main scale band two, the main scale band three, the main scale band four, the auxiliary scale band one and the auxiliary scale band two are all elliptical cylinders; the magnetic attraction piece two is fixedly connected to the middle position of the inside length direction of the main scale band one, the main scale band two, the main scale band three and the main scale band four; the magnetic attraction piece one is fixedly connected to both ends of the inside of the auxiliary scale band one and the auxiliary scale band two; the magnetic attraction piece three is fixedly connected to the middle position of the inside length direction of the auxiliary scale band one; and the magnetic attraction piece four is installed at the middle position of the inside length direction of the auxiliary scale band two.

[0030] The beneficial effects of the above technical solution are: the magnetic attraction members are wrapped and fixed inside the corresponding scale bands, which protects the magnetic attraction members, the magnetic force between the magnetic attraction members can also penetrate the scale bands to achieve magnetic attraction, and will not interfere with the scale line arrangement on the outer surface of the scale band.

[0031] As a further improvement of the above technical solution, the connecting member is a circular ring body with a ring hole as a positioning hole or a straight-angle sector plate with a positioning hole on the plate surface; the head end of any one of the main scale bands and the tail end of another main scale band adjacent thereto are perpendicular to each other and are both fixed on the same outer circumferential side of the connecting member.

[0032] The beneficial effects of the above technical solution are: when the connecting member is a circular ring body, the structure is simple and the cost is low; when the connecting member is a straight-angle sector plate, the main scale bands can be connected to the side end corresponding to the straight-angle side of the connecting member, so as to improve the perpendicularity when arranging the two adjacent main scale bands.

[0033] As a further improvement of the above technical solution, the bottom of the insertion rod has a sharp end.

[0034] The beneficial effects of the above technical solution are: when in use, the sharp end of the insertion rod faces downward to facilitate insertion into the soil to a certain depth.

[0035] According to the above technical solution, compared with the prior art, the portable high-efficiency grassland field monitoring sample frame has the following advantages and beneficial effects:

[0036] 1. The hose assembly of the utility model can adopt silica gel hoses of various specifications, and the suction nozzle can be flexibly moved in multiple directions in the sand mold cavity to efficiently adsorb floating sand in dead corners. The design increases the filtering structure, which concentrates the adsorbed floating sand in the sand storage chamber, and does not pollute the environment of the workshop, especially does not cause secondary impact on the surrounding sand mold. The air supply branch pipe can be directly assembled with the existing pressure air gun in the workshop, without the need to increase power equipment, thereby avoiding cost consumption.

[0037] 2. The utility model can be applied to cleaning of resin sand molds, clay sand molds and coated sand molds in addition to 3D printing shell molds, has the characteristics of simple operation and stable device use process, can significantly improve work efficiency and work quality, and can obviously reduce casting sand eye and sand inclusion defects and reduce the production process cost of castings by cleaning the surface of the shell mold and floating sand in dead corners and adsorbing floating sand in the cavity after the shell mold is combined. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0039] Figure 1 The utility model discloses a portable high -efficient grassland field monitoring sample frame whole structure schematic diagram;

[0040] Figure 2 The utility model discloses Figure 1 The utility model discloses a structure amplification schematic diagram at A place in the middle;

[0041] Figure 3 The utility model discloses a portable high -efficient grassland field monitoring sample frame's vice scale tape two structure schematic diagram;

[0042] Figure 4 The utility model discloses a portable high -efficient grassland field monitoring sample frame's vice scale tape two structure schematic diagram;

[0043] Figure 5 The utility model discloses a portable high -efficient grassland field monitoring sample frame's magnetic attraction piece two installation state schematic diagram;

[0044] Figure 6 The utility model discloses a portable high -efficient grassland field monitoring sample frame's plug -in rod structure schematic diagram;

[0045] In the drawing, 1 is the main scale tape, 11 is the main scale tape one, 12 is the main scale tape two, 13 is the main scale tape three, 14 is the main scale tape four, 15 is the magnetic attraction piece two, 16 is the rivet, 2 is the connecting piece, 21 is the connecting piece one, 211 is the positioning hole one, 212 is the fixed clamping plate, 22 is the connecting piece two, 221 is the positioning hole two, 23 is the connecting piece three, 231 is the positioning hole three, 24 is the connecting piece four, 241 is the positioning hole four, 3 is the plug-in rod, 4 is the vice scale tape, 41 is the vice scale tape one, 42 is the vice scale tape one, 43 is the magnetic attraction piece one, 44 is the magnetic attraction piece three, 45 is the magnetic attraction piece four, 5 is the rectangular sampling area three. DETAILED DESCRIPTION

[0046] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0047] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0048] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0049] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0050] As shown in Figures 1 to 6 A portable high-efficiency grassland field monitoring sample frame, comprising:

[0051] The main scale band 1 is flexible and foldable;

[0052] The connecting piece 2 is connected in sequence to form a ring-shaped belt structure; the connecting piece 2 is provided with a positioning hole;

[0053] The insertion rod 3 is inserted into the soil to position the fixed connecting piece 2 and tension the multiple main scale bands 1, forming a polygonal sample frame.

[0054] The portable high-efficiency grassland monitoring sample frame of the embodiment is made of flexible material to form a ring-shaped belt structure by connecting a plurality of main scale belts 1 in series through connecting pieces 2, and can be freely rolled and folded for storage, and is light in weight and convenient for users to carry. When in use, the main scale belts 1 are unfolded and laid on the ground in a polygonal shape, each of the main scale belts 1 is a side frame of the polygonal sample frame, and the connecting pieces 2 are positioned by inserting the insertion rods 3 into the positioning insertion holes of the connecting pieces 2 and into the soil. Before the insertion rods 3 are inserted, the adjacent two connecting pieces 2 are pulled to tension and straighten the main scale belt 1 between the two connecting pieces 2, and then the insertion rods 3 are inserted for fixation. After the main scale belts 1 are all tensioned and straightened, the polygonal sample frame is formed. The sample frame is simple and convenient to use, has strong adaptability to complex terrain, is firmly fixed, can be arranged in close contact with the ground, and the main scale belts 1 have scales to improve the calculation efficiency and accuracy.

[0055] In some embodiments, the main scale belts 1 include a first main scale belt 11, a second main scale belt 12, a third main scale belt 13 and a fourth main scale belt 14; the connecting pieces 2 include a first connecting piece 21, a second connecting piece 22, a third connecting piece 23 and a fourth connecting piece 24; the first connecting piece 21 is provided with a first positioning insertion hole 211, the second connecting piece 22 is provided with a second positioning insertion hole 221, the third connecting piece 23 is provided with a third positioning insertion hole 231, and the fourth connecting piece 24 is provided with a fourth positioning insertion hole 241; the insertion rods 3 include a first insertion rod, a second insertion rod, a third insertion rod and a fourth insertion rod;

[0056] The first main scale belt 11 and the third main scale belt 13 are the same in length; the second main scale belt 12 and the fourth main scale belt 14 are the same in length; one end of the first main scale belt 11 is connected to the first connecting piece 21, the other end of the first main scale belt 11 is connected to the second connecting piece 22, one end of the second main scale belt 12 is connected to the second connecting piece 22, the other end of the second main scale belt 12 is connected to the third connecting piece 23, one end of the third main scale belt 13 is connected to the third connecting piece 23, the other end of the third main scale belt 13 is connected to the fourth connecting piece 24, one end of the fourth main scale belt 14 is connected to the fourth connecting piece 24, and the other end of the fourth main scale belt 14 is connected to the first connecting piece 21 to form a ring-shaped belt structure; when the first connecting piece 21, the second connecting piece 22, the third connecting piece 23 and the fourth connecting piece 24 are away from each other, the first main scale belt 11, the second main scale belt 12, the third main scale belt 13 and the fourth main scale belt 14 can be tensioned and straightened to form a rectangular sample frame;

[0057] The first insertion rod can be movably inserted through the first positioning insertion hole 211 and into the soil to position the first connecting piece 21; the second insertion rod can be movably inserted through the second positioning insertion hole 221 and into the soil to position the second connecting piece 22; the third insertion rod can be movably inserted through the third positioning insertion hole 231 and into the soil to position the third connecting piece 23; and the fourth insertion rod can be movably inserted through the fourth positioning insertion hole 241 and into the soil to position the fourth connecting piece 24.

[0058] The four main scale bands can be used to quickly build a rectangular frame for efficient vegetation coverage calculation.

[0059] In some embodiments, a secondary scale band 4 is further included, which is a flexible band and can be folded for storage; both ends of the secondary scale band 4 are provided with magnetic members 43;

[0060] The middle part of each of the main scale band one 11, the main scale band two 12, the main scale band three 13 and the main scale band four 14 is provided with a magnetic member 15 that can be magnetically connected with the magnetic member 43;

[0061] The magnetic members 43 at both ends of the secondary scale band 4 can be magnetically connected with the magnetic members 15 in the middle part of the main scale band one 11 and the main scale band three 13 one by one and straightened to divide the rectangular frame into two rectangular sampling areas one that are the same in shape and equal in area; or, the magnetic members 43 at both ends of the secondary scale band 4 can be magnetically connected with the magnetic members 15 in the middle part of the main scale band two 12 and the main scale band four 14 one by one and straightened to divide the rectangular frame into two rectangular sampling areas two that are the same in shape and equal in area.

[0062] Based on the rectangular frame built by the four main scale bands, the secondary scale band 4 can be used to divide the rectangular frame into the rectangular sampling areas one or the rectangular sampling areas two that are the same in shape and equal in area, facilitating the use when only 50% of the area is monitored.

[0063] In some embodiments, the secondary scale band 4 includes a secondary scale band one 41 and a secondary scale band two 42; both ends of the secondary scale band one 41 and the secondary scale band two 42 are provided with magnetic members 43;

[0064] When the magnetic members 43 at both ends of the secondary scale band one 41 are magnetically connected with the magnetic members 15 in the middle part of the main scale band one 11 and the main scale band three 13 one by one and straightened, and the magnetic members 43 at both ends of the secondary scale band two 42 are magnetically connected with the magnetic members 15 in the middle part of the main scale band two 12 and the main scale band four 14 one by one and straightened, the secondary scale band one 41 and the secondary scale band two 42 are perpendicular and cross each other and are overlapped, which can divide the rectangular frame into four rectangular sampling areas three 5 that are the same in shape and equal in area.

[0065] The secondary scale band one 41 and the secondary scale band two 42 can be used to divide the rectangular frame built by the four main scale bands into the four rectangular sampling areas three 5 that are the same in shape and equal in area, facilitating the use when only 25% of the area is monitored.

[0066] In some embodiments, the length of each of the main scale band one 11, the main scale band two 12, the main scale band three 13 and the main scale band four 14 is 1m, and the width of each of them is the same and is 0.5cm-2cm.

[0067] The four main scale bands are 1m long, and can be quickly arranged into a simple 1x1m standard quadrat frame.

[0068] In some embodiments, the middle position of the length direction of the secondary scale band one 41 is provided with a magnetic attraction piece three 44, and the middle position of the length direction of the secondary scale band two 42 is provided with a magnetic attraction piece four 45; the magnetic attraction piece three 44 and the magnetic attraction piece four 45 can be magnetically connected to be fixed at the intersection position when the secondary scale band one 41 and the secondary scale band two 42 are vertically crossed and overlapped.

[0069] Through the magnetic connection of the magnetic attraction piece three 44 and the magnetic attraction piece four 45, the vertical intersection point of the secondary scale band one 41 and the secondary scale band two 42 can be stably connected, and the measurement accuracy can be improved.

[0070] In some embodiments, the magnetic attraction piece one 43, the magnetic attraction piece two 15, the magnetic attraction piece three 44 and the magnetic attraction piece four 45 are magnet pieces or iron pieces.

[0071] When the magnetic attraction piece one 43 and the magnetic attraction piece two 15 or the magnetic attraction piece three 44 and the magnetic attraction piece four 45 are both selected as magnet pieces, the magnetic connection force can be stronger; when one of the magnetic attraction piece one 43 and the magnetic attraction piece two 15 is selected as a magnet piece and the other is selected as an iron piece, and when one of the magnetic attraction piece three 44 and the magnetic attraction piece four 45 is selected as a magnet piece and the other is selected as an iron piece, the arrangement direction of the magnetic pole when installing the magnetic attraction piece does not need to be considered, which is more convenient for magnetic connection and fine adjustment of the position of the magnetic connection.

[0072] In some embodiments, the main scale band one 11, the main scale band two 12, the main scale band three 13, the main scale band four 14, the secondary scale band one 41 and the secondary scale band two 42 are all elliptical cylindrical; the middle position of the length direction inside the main scale band one 11, the main scale band two 12, the main scale band three 13 and the main scale band four 14 is fixedly connected with the magnetic attraction piece two 15; both ends inside the secondary scale band one 41 and the secondary scale band two 42 are fixedly connected with the magnetic attraction piece one 43; the middle position of the length direction inside the secondary scale band one 41 is fixedly connected with the magnetic attraction piece three 44; and the middle position of the length direction inside the secondary scale band two 42 is provided with the magnetic attraction piece four 45.

[0073] The elliptical cylindrical scale band enhances the toughness and tensile strength, and is solid and durable; the magnetic attraction pieces are wrapped and fixed inside the corresponding scale band, which protects the magnetic attraction pieces, and the magnetic force between the magnetic attraction pieces can also penetrate the scale band to play a magnetic attraction role, and also does not interfere with the setting of the scale lines on the outer surface of the scale band.

[0074] Specifically, the middle part of the magnetic attraction piece one 43, the magnetic attraction piece two 15, the magnetic attraction piece three 44 and the magnetic attraction piece four 45 is provided with a through hole, two magnetic attraction piece one 43 and one magnetic attraction piece three 44 are fixed on the vice scale band one 41 through rivets 16; the other two magnetic attraction piece one 43 and one magnetic attraction piece four 45 are fixed on the corresponding vice scale band two 42 through rivets 16; four magnetic attraction piece two 15 are fixed in the middle part of the corresponding main scale band one 11, main scale band two 12, main scale band three 13 and main scale band four 14 through rivets 16.

[0075] Specifically, the main scale band one 11, the main scale band two 12, the main scale band three 13, the main scale band four 14, the vice scale band one 41 and the vice scale band two 42 are precisely woven by high-strength polyester filament through a circular loom, lined with PVC lining through high temperature vulcanization once bonding, and are provided with scale lines and scale values along the length direction, with the smallest scale being 1mm. Because the material itself has certain stability, combined with the fixed magnet piece or iron piece device inside, with a certain gravity, combined with the four corners with the inserted rod for fixation, it is not easy to deform after stretching and fixation. The oval cylindrical main scale band one 11, the main scale band two 12, the main scale band three 13, the main scale band four 14, the vice scale band one 41 and the vice scale band two 42 are expanded and straightened to a strip, and the width after being pressed is about 1cm, with the characteristics of easy folding or winding collection, durability and easy recovery to original state.

[0076] In some embodiments, the connecting piece 2 is a circular ring body with a ring hole as a positioning insertion hole or a straight angle sector plate with a positioning insertion hole on the plate surface; the head end of any one main scale band 1 and the tail end of another main scale band 1 adjacent thereto are perpendicular to each other and are both fixed on the same connecting piece 2 outer circumferential side.

[0077] When the connecting piece 2 is a circular ring body, the structure is simple and the cost is low; when the connecting piece 2 is a straight angle sector plate, the main scale band 1 can be connected to the side end corresponding to the straight angle side of the connecting piece 2, so as to improve the perpendicularity when arranging the adjacent two main scale bands 1.

[0078] Specifically, the connecting piece one 21, the connecting piece two 22, the connecting piece three 23 and the connecting piece four 24 are the same structure, which are all the right-angle sector plates with the positioning insertion holes on the plate surface. Wherein, the fixed clamping plates 212 are fixedly welded or integrally connected on both sides of the right-angle edge of the connecting piece one 21; one end of the main scale band one 11 and the main scale band four 14 are parallelly stacked with the corresponding fixed clamping plates 212 and are penetrated and compressed by the rivets, so as to correspondingly fix one end of the main scale band one 11 and the main scale band four 14 on the two fixed clamping plates 212 of the connecting piece one 21. The main scale band one 11, the main scale band two 12 and the connecting piece two 22, the main scale band two 12, the main scale band three 13 and the connecting piece three 23, the main scale band three 13, the main scale band four 14 and the connecting piece four 24 are all fixed by the fixed clamping plates 212 and the rivets, so as to form the integral flexible quadrangle frame combination structure.

[0079] In some embodiments, the insertion rod 3 has a pointed end at the bottom.

[0080] In use, the pointed end of the insertion rod 3 is downward to facilitate insertion into the soil to a certain depth.

[0081] Specifically, the insertion rod 3 can be a pointed screwdriver.

[0082] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0083] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A portable and efficient grassland field monitoring quadrat frame, characterized in that, The utility model relates to a quadrangle sample frame, including: Main scale band (1), the main scale band (1) is multiple and all is flexible band and can be folded and stored; Connecting piece (2), the connecting piece (2) is multiple, and multiple main scale band (1) is connected through the connecting piece (2) and constitutes annular belt structure in turn by head and tail, and the connecting piece (2) is equipped with positioning socket; Inserting rod (3), the inserting rod (3) is multiple and can pass through the positioning socket of multiple connecting piece (2) and inserts into the soil positioning to be positioned through fixing connecting piece (2) to further multiple main scale band (1) is taut and straight and constitutes polygonal sample frame.

2. The portable, high-efficiency prairie monitoring plot frame of claim 1, wherein, The main scale band (1) includes main scale band one (11), main scale band two (12), main scale band three (13) and main scale band four (14), and the connecting piece (2) includes connecting piece one (21), connecting piece two (22), connecting piece three (23) and connecting piece four (24), and the connecting piece one (21) is equipped with positioning socket one (211), and the connecting piece two (22) is equipped with positioning socket two (221), and the connecting piece three (23) is equipped with positioning socket three (231), and the connecting piece four (24) is equipped with positioning socket four (241), and the inserting rod (3) includes inserting rod one, inserting rod two, inserting rod three and inserting rod four. The main scale band one (11) and main scale band three (13) are same in length, and the main scale band two (12) and main scale band four (14) are same in length, and one end of the main scale band one (11) is connected with the connecting piece one (21), and the other end of the main scale band one (11) is connected with the connecting piece two (22), and one end of the main scale band two (12) is connected with the connecting piece two (22), and the other end of the main scale band two (12) is connected with the connecting piece three (23), and one end of the main scale band three (13) is connected with the connecting piece three (23), and the other end of the main scale band three (13) is connected with the connecting piece four (24), and one end of the main scale band four (14) is connected with the connecting piece four (24), and the other end of the main scale band four (14) is connected with the connecting piece one (21), to constitute annular belt structure, and when the connecting piece one (21), the connecting piece two (22), the connecting piece three (23) and the connecting piece four (24) are away from each other, the main scale band one (11), the main scale band two (12), the main scale band three (13) and the main scale band four (14) can be taut and straight and constitute rectangular sample frame. The inserting rod one can pass through the positioning socket one (211) and insert into the soil to position the connecting piece one (21), the inserting rod two can pass through the positioning socket two (221) and insert into the soil to position the connecting piece two (22), the inserting rod three can pass through the positioning socket three (231) and insert into the soil to position the connecting piece three (23), and the inserting rod four can pass through the positioning socket four (241) and insert into the soil to position the connecting piece four (24).

3. A portable, high-efficiency prairie monitoring plot frame according to claim 2, wherein, Also included is a secondary scale strip (4), which is a flexible strip and can be folded for storage; both ends of the secondary scale strip (4) are provided with magnetic attraction members I (43); The middle part of the main scale strip one (11), the main scale strip two (12), the main scale strip three (13) and the main scale strip four (14) are provided with magnetic attraction members II (15) which can be magnetically connected with the magnetic attraction members I (43); The magnetic attraction members I (43) at both ends of the secondary scale strip (4) can be one-to-one magnetically connected with the magnetic attraction members II (15) in the middle part of the main scale strip one (11) and the main scale strip three (13) and be straightened to divide the rectangular frame into two rectangular sampling areas one which are the same in shape and equal in area; alternatively, the magnetic attraction members I (43) at both ends of the secondary scale strip (4) can be one-to-one magnetically connected with the magnetic attraction members II (15) in the middle part of the main scale strip two (12) and the main scale strip four (14) and be straightened to divide the rectangular frame into two rectangular sampling areas two which are the same in shape and equal in area.

4. The portable, high-efficiency rangeland monitoring plot frame of claim 3, wherein, The secondary scale strip (4) includes a secondary scale strip one (41) and a secondary scale strip two (42); both ends of the secondary scale strip one (41) and the secondary scale strip two (42) are provided with the magnetic attraction members I (43); When the magnetic attraction members I (43) at both ends of the secondary scale strip one (41) are one-to-one magnetically connected with the magnetic attraction members II (15) in the middle part of the main scale strip one (11) and the main scale strip three (13) and be straightened, and the magnetic attraction members I (43) at both ends of the secondary scale strip two (42) are one-to-one magnetically connected with the magnetic attraction members II (15) in the middle part of the main scale strip two (12) and the main scale strip four (14) and be straightened, the secondary scale strip one (41) and the secondary scale strip two (42) are perpendicular to each other and overlap, which can divide the rectangular frame into four rectangular sampling areas three (5) which are the same in shape and equal in area.

5. A portable, high-efficiency rangeland monitoring plot frame according to claim 4, wherein, The length of the main scale strip one (11), the main scale strip two (12), the main scale strip three (13) and the main scale strip four (14) is 1m, and the width is the same and is 0.5cm-2cm.

6. A portable, high-efficiency rangeland monitoring plot frame according to claim 4, wherein, A magnetic attraction member III (44) is installed at the middle position of the length direction of the secondary scale strip one (41), and a magnetic attraction member IV (45) is installed at the middle position of the length direction of the secondary scale strip two (42); the magnetic attraction member III (44) and the magnetic attraction member IV (45) can be magnetically connected to magnetically fix the cross position when the secondary scale strip one (41) and the secondary scale strip two (42) are perpendicular to each other and overlap.

7. A portable, high-efficiency rangeland monitoring plot frame according to claim 6, wherein, The magnetic attraction members I (43), the magnetic attraction members II (15), the magnetic attraction member III (44) and the magnetic attraction member IV (45) are magnet pieces or iron pieces.

8. A portable, high-efficiency rangeland monitoring plot frame according to claim 6, wherein, Said main scale strip one (11), said main scale strip two (12), said main scale strip three (13), said main scale strip four (14), said auxiliary scale strip one (41) and said auxiliary scale strip two (42) are all elliptical cylinder; the middle position of the internal length direction of said main scale strip one (11), said main scale strip two (12), said main scale strip three (13) and said main scale strip four (14) are all fixedly connected with said magnetic attraction piece two (15); the two ends of the internal of said auxiliary scale strip one (41) and said auxiliary scale strip two (42) are all fixedly connected with said magnetic attraction piece one (43); the middle position of the internal length direction of said auxiliary scale strip one (41) is fixedly connected with said magnetic attraction piece three (44); the middle position of the internal length direction of said auxiliary scale strip two (42) is installed with said magnetic attraction piece four (45).

9. The portable, high-efficiency rangeland monitoring plot box of claim 1, wherein, Said connecting piece (2) is a circular ring body with ring hole as positioning insertion hole or a right-angle sector plate with positioning insertion hole on the plate surface; the head end of any one of said main scale strips (1) and the tail end of another main scale strip (1) adjacent to it are perpendicular to each other and are both fixed on the same outer circumferential side of said connecting piece (2).

10. The portable, high-efficiency rangeland monitoring plot box of claim 1, wherein, The bottom of said insertion rod (3) has a pointed end.

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