Portable grass sample investigation quadrat device

Abstract

The utility model belongs to the technical field of sampling devices, and particularly relates to a portable grass sample investigation quadrat device. The quadrat device aims at solving the problems that an existing quadrat device is large in size, scattered in structure, inconvenient to carry, prone to deformation, incapable of being guaranteed to be a standard square and difficult to observe high grass clearly. According to the scheme, the device comprises a first fixing rod, a second fixing rod, a first adjusting rod and a second adjusting rod and further comprises a rotating assembly, one end of the first fixing rod is hinged to one end of the second fixing rod through the rotating assembly, and the other end of the first fixing rod is rotationally connected with one end of the first adjusting rod through the rotating assembly; the other end of the second fixing rod is rotationally connected with one end of the second adjusting rod through a rotating assembly, and the free end of the first adjusting rod abuts against the free end of the second adjusting rod. The portable grass sample investigation quadrat device is small in size after being folded, easy to store and carry and easy and fast to unfold, and improves accuracy and efficiency of grassland resource investigation.

Description

Technical Field

[0001] The utility model relates to a portable grass sample survey quadrat and belongs to the technical field of survey equipment. Background Art

[0002] In the process of forestry and grassland scientific research, it is often necessary to sample and analyze the vegetation and soil on the surface. When sampling, a quadrat is needed to enclose a square area on the ground as a sample. For example, the "Technical Regulations for Grassland Resources and Ecological Monitoring N / T 1233-2006" requires that a 1m*1m sampling frame be used for grassland vegetation resource surveys.

[0003] Traditional grass sampling survey methods mostly use steel tape measures or rubber measures to enclose fixed-size sample plots on selected plots. However, these methods have the problem of plants blocking the sample lines, making it impossible for the ruler to pass through in a straight line, it is difficult to ensure that the corners of small sample plots are right angles, and it is difficult for the ruler to fall or be clearly observed in tall grass.

[0004] The sample plotters in the prior art are large in size and have a scattered structure, which makes them inconvenient to carry. The standard 1m*1m sample plots formed by simple samplers on the market are prone to deformation and cannot be guaranteed to be standard squares. These problems not only affect the accuracy of the sample plots and the efficiency of the survey, but also increase the labor intensity of the investigators.

[0005] This utility model patent aims to provide a portable grass sampling survey quadrat. By optimizing the structure, it solves the problems of existing quadrat devices such as large size, scattered structure, inconvenient carrying, easy deformation and inability to maintain a standard square shape, and difficulty in clearly observing tall grass. It is of great significance to improve the accuracy, efficiency and convenience of grassland resource surveys. Utility Model Content

[0006] The utility model provides a portable grass sample survey quadrat to solve the problems that the existing quadrat has a large volume and a scattered structure, is inconvenient to carry, is easy to deform, and cannot be guaranteed to be a standard square.

[0007] The utility model achieves the above-mentioned purpose through the following technical solutions: a portable grass sample survey quadrat, comprising a sampling frame, the sampling frame comprising a first fixed rod, a second fixed rod, a first adjusting rod and a second adjusting rod; and further comprising a rotating assembly, the rotating assembly being used to connect the first fixed rod, the second fixed rod, the first adjusting rod and the second adjusting rod to each other;

[0008] One end of the first fixed rod is hinged to one end of the second fixed rod through a rotating assembly, the other end of the first fixed rod is rotatably connected to one end of the first adjusting rod through a rotating assembly, the other end of the second fixed rod is rotatably connected to one end of the second adjusting rod through a rotating assembly, and the free end of the first adjusting rod abuts against the free end of the second adjusting rod.

[0009] As a further solution of the utility model: the rotating assembly is a hinge; the first fixed rod and the second fixed rod are connected to the same hinge at one end close to each other, the first fixed rod and the first adjusting rod are connected to the same hinge at one end close to each other, and the second fixed rod and the second adjusting rod are connected to the same hinge at one end close to each other.

[0010] As a further solution of the present invention: the first fixing rod, the second fixing rod, the first adjusting rod and the second adjusting rod are all in the shape of isosceles trapezoids, and the base angles of the isosceles trapezoids are all 45 degrees.

[0011] As a further solution of the utility model: the rotating assembly includes a rotating shaft, and the end of the first fixed rod adjacent to the first adjusting rod is provided with a same rotating shaft; the end of the second fixed rod adjacent to the second adjusting rod is provided with a same rotating shaft; inner cavities are respectively formed on the inner sides of the first fixed rod and the second fixed rod; and the upper part of the end adjacent to the first fixed rod and the second fixed rod is provided with a same hinge.

[0012] As a further solution of the present invention: the first fixing rod, the second fixing rod, the first adjusting rod and the second adjusting rod are respectively telescopically arranged.

[0013] As a further solution of the utility model: the side wall of one end of the first fixing rod close to the first adjusting rod and the side wall of one end of the second fixing rod close to the second adjusting rod are respectively provided with limiting components, and the limiting components are used to limit the angle of the sampling frame.

[0014] As a further solution of the utility model: both ends of the first fixing rod, the second fixing rod, the first adjusting rod and the second adjusting rod are respectively provided with insertion holes; the insertion holes also penetrate the rotating shaft, and the axis of the insertion holes is coaxial with the axis of the rotating shaft.

[0015] As a further solution of the utility model: a ground nail and a U-shaped nail can be inserted into the socket, the ground nail is used to fix the grass sample survey quadrat, and the U-shaped nail is used to fix the first adjustment rod and the second adjustment rod.

[0016] As a further solution of the utility model: a plurality of subdivided line holes are equidistantly provided on the rod bodies of the first fixing rod, the second fixing rod, the first adjusting rod and the second adjusting rod.

[0017] As a further solution of the present invention: the first fixing rod and the second fixing rod are respectively provided with scales on their rod bodies.

[0018] The beneficial effects of the utility model are:

[0019] 1. The utility model comprises a first fixing rod, a second fixing rod, a first adjusting rod, a second adjusting rod and a rotating assembly; the portable grass sample survey quadrat becomes smaller in size after being folded, making it easier to store and carry, which is beneficial for surveyors to easily carry it to various survey sites, and the unfolding and folding process is simple and quick, without the need for complicated operations, thereby improving the accuracy and efficiency of grassland resource surveys.

[0020] 2. In the utility model, inner cavities are respectively formed in the first fixed rod and the second fixed rod, and the inner cavities accommodate the first adjusting rod and the second adjusting rod respectively. The setting of the inner cavity can not only reduce the weight of the grass sample survey quadrat, but also accommodate the first adjusting rod and the second adjusting rod when folded, so that the volume of the grass sample survey quadrat becomes smaller.

[0021] 3. In the utility model, the first fixing rod, the second fixing rod, the first adjusting rod and the second adjusting rod are retractable. Such an arrangement can save the length of the grass sample survey quadrat when it is stored, thereby saving space and being convenient to carry.

[0022] 4. In the utility model, the side wall of one end of the first fixing rod close to the first adjusting rod and the side wall of one end of the second fixing rod close to the second adjusting rod are respectively provided with limiting components, and the adjacent ends of the first fixing rod and the second fixing rod 2 are both arranged in a 45-degree trapezoidal shape; so that the grass sample survey quadrat is square when unfolded and the square is not easy to deform.

[0023] 5. In the utility model, ground nails and U-shaped nails can be inserted into the sockets, and the sockets, ground nails and U-shaped nails cooperate to fix the grass sample survey quadratometer, so that the grass sample survey quadratometer will not be displaced during sampling to affect the sampling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the utility model in a semi-folded state;

[0026] Figure 3 This is a schematic diagram of the structure of the utility model in a folded state;

[0027] Figure 4 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0028] Figure 5 It is a schematic diagram of the overall structure of this utility model;

[0029] Figure 6 Practical Figure 5 Schematic diagram of the structure at A in the middle;

[0030] Figure 7 Practical Figure 5Schematic diagram of the structure at B in the middle;

[0031] Figure 8 Practical Figure 5 Schematic diagram of the structure at C in the middle;

[0032] Fig. 9 Practical Figure 5 Schematic diagram of the structure at point D in the middle.

[0033] In the figure: 1. first fixing rod; 11. limiting component; 12. subdivision line hole; 2. second fixing rod; 3. first adjusting rod; 4. second adjusting rod; 5. rotating assembly; 51. rotating shaft; 52. hinge; 6. socket; 7. ground nail; 8. U-shaped nail. DETAILED DESCRIPTION

[0034] 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.

[0035] Embodiment 1

[0036] like Figure 1 , Figure 4 As shown, a portable grass sample survey quadrat includes a sampling frame, and the sampling frame includes a first fixing rod 1, a second fixing rod 2, a first adjusting rod 3 and a second adjusting rod 4;

[0037] A rotating assembly 5, the rotating assembly 5 is used to connect the first fixed rod 1, the second fixed rod 2, the first adjusting rod 3 and the second adjusting rod 4 to each other, and the rotating assembly 5 includes a hinge 52;

[0038] The first fixed rod 1 and the second fixed rod 2 are connected to each other at one end thereof with a hinge 52, the first fixed rod 1 and the first adjusting rod 3 are connected to each other at one end thereof with a hinge 52, and the second fixed rod 2 and the second adjusting rod 4 are connected to each other at one end thereof with a hinge 52;

[0039] The first fixing rod 1, the second fixing rod 2, the first adjusting rod 3 and the second adjusting rod 4 are all in the shape of an isosceles trapezoid, and the bottom angles of the trapezoids are all 45 degrees, so that when the trapezoidal inclined surfaces of the first fixing rod 1, the second fixing rod 2, the first adjusting rod 3 and the second adjusting rod 4 are fitted together, the adjacent ends of the first fixing rod 1, the second fixing rod 2, the first adjusting rod 3 and the second adjusting rod 4 form a 90-degree angle and are perpendicular to each other; the outer wall of one end of the first fixing rod 1 is hinged to the outer wall of one end of the second fixing rod 2 through a hinge 52, the upper wall of the other end of the first fixing rod 1 is hinged to the upper wall of the first adjusting rod 3 through a hinge 52, the upper wall of the other end of the second fixing rod 2 is hinged to the upper wall of the second adjusting rod 4, and the other end of the first adjusting rod 3 is abutted against the other end of the second adjusting rod 4; so that the grass sample survey quadrat is a square frame, and under normal circumstances, the inner wall of the square forms a standard 1m*1m square quadrat;

[0040] When the hinge 52 is unfolded, the first fixed rod 1 and the second fixed rod 2 are perpendicular to each other, the first fixed rod 1 and the first adjustment rod 3 are perpendicular to each other, the second fixed rod 2 and the second adjustment rod 4 are perpendicular to each other, and the first adjustment rod 3 and the second adjustment rod 4 are perpendicular to each other. At this time, the grass sample survey quadrat is unfolded and is square;

[0041] When the hinge 52 is closed, the first fixed rod 1, the second fixed rod 2, the first adjustment rod 3 and the second adjustment rod 4 are turned over and overlapped by the hinge 52, so that the outer panel of the first fixed rod 1 is attached to the outer panel of the second fixed rod 2, the upper panel of the first fixed rod 1 is in contact with the upper panel of the first adjustment rod 3, and the upper panel of the second fixed rod 2 is attached to the upper panel of the second adjustment rod 4, so that the first fixed rod 1, the second fixed rod 2, the first adjustment rod 3 and the second adjustment rod 4 are parallel to each other and folded. The volume of the grass sample survey quadrat after folding becomes smaller, which is easier to store and carry, and is convenient for surveyors to easily carry it to various survey locations;

[0042] Compared with existing sample plotters that are large in size and have a scattered structure, are inconvenient to carry, are easily deformed and cannot ensure a standard square shape, and tall grass is difficult to observe clearly, the portable grass sample survey sample plotter disclosed in the embodiment of the utility model has a smaller size after folding, is easier to store and carry, and is convenient for surveyors to carry to various survey locations easily. The unfolding and folding process is simple and quick, and does not require complicated operations, thereby improving the accuracy and efficiency of grassland resource surveys.

[0043] Embodiment 2

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7As shown, the rotating assembly 5 also includes a rotating shaft 51 and a hinge 52; the upper oblique sides of the adjacent ends of the first fixing rod 1 and the second fixing rod 2 are connected with the same hinge 52, and the adjacent ends of the first fixing rod 1 and the second fixing rod 2 are both arranged in a 45-degree trapezoidal shape, so that the oblique surfaces of the first fixing rod 1 and the second fixing rod 2 are perpendicular to each other when they are in contact with each other, and when the hinge 52 is closed, the first fixing rod 1 and the second fixing rod 2 are flipped and folded by the hinge 52, so that the upper panel of the first fixing rod 1 is in contact with the upper panel of the second fixing rod 2;

[0045] The first fixed rod 1 is provided with a same rotating shaft 51 at one end adjacent to the first adjusting rod 3, and the rotating shaft 51 enables the first fixed rod 1 to be rotatably connected to the first adjusting rod 3; the second fixed rod 2 is provided with a same rotating shaft 51 at one end adjacent to the second adjusting rod 4, and the rotating shaft 51 enables the second fixed rod 2 to be rotatably connected to the second adjusting rod 4;

[0046] Inner cavities are formed in the first fixing rod 1 and the second fixing rod 2 respectively, and the inner cavities accommodate the first adjusting rod 3 and the second adjusting rod 4 respectively. The setting of the inner cavity can not only reduce the weight of the grass sample survey quadrat, but also accommodate the first adjusting rod 3 and the second adjusting rod 4 when folded, thereby reducing the volume of the grass sample survey quadrat.

[0047] When folded, the first adjustment rod 3 and the second adjustment rod 4 are respectively turned inwards with the two rotation axes 51 as the center, so that the inner side surface of the first adjustment rod 3 is in contact with the inner side surface of the first fixed rod 1, and the inner side surface of the second adjustment rod 4 is in contact with the inner side surface of the second fixed rod 2;

[0048] Further, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the first fixed rod 1, the second fixed rod 2, the first adjusting rod 3 and the second adjusting rod 4 are respectively telescopically arranged, and the first fixed rod 1, the second fixed rod 2, the first adjusting rod 3 and the second adjusting rod 4 are respectively provided with an inner rod and an outer rod, and the outer rod is telescopically sleeved outside the inner rod. When folding, the outer rod and the inner rod of the first adjusting rod 3 and the second adjusting rod 4 are first retracted, and then the first adjusting rod 3 and the second adjusting rod 4 are rotated, so that the first adjusting rod 3 and the second adjusting rod 4 are respectively retracted into the first fixed rod 1 and the second fixed rod 2, and then the first fixed rod 1 and the second fixed rod 2 are retracted; the telescopic arrangement of the first fixed rod 1, the second fixed rod 2, the first adjusting rod 3 and the second adjusting rod 4 can save the length of the grass sample survey quadrat when it is stored, thereby saving space and being convenient to carry.

[0049] Further, such as Figure 1 , Figure 6 , Figure 7As shown, a side wall of one end of the first fixing rod 1 close to the first adjusting rod 3 and a side wall of one end of the second fixing rod 2 close to the second adjusting rod 4 are respectively provided with a limiting component 11, and the limiting component 11 is used to limit the angle formed by the first adjusting rod 3 and the first fixing rod 1, and the second adjusting rod 4 and the second fixing rod 2 when they are unfolded, so that the maximum angle when the first adjusting rod 3 is unfolded from the first fixing rod 1 and the second adjusting rod 4 is unfolded from the second fixing rod 2 is 90 degrees, and they are perpendicular to each other, so that the grass sample survey quadrat is square when unfolded and the square is not easy to deform.

[0050] Further, such as Figure 1 , Figure 7 As shown, a plurality of subdivision line holes 12 are equidistantly arranged on the first fixed rod 1, the second fixed rod 2, the first adjustment rod 3, and the second adjustment rod 4, and the interval between the plurality of subdivision line holes 12 is 10 cm. The subdivision line holes 12 facilitate the estimation of vegetation height and coverage;

[0051] Further, such as Figures 5 to 9 As shown, both ends of the first fixing rod 1 , the second fixing rod 2 , the first adjusting rod 3 and the second adjusting rod 4 are respectively provided with insertion holes 6 ; the insertion holes 6 also penetrate the two rotating shafts 51 , and the insertion holes 6 are respectively coaxial with the axes of the two rotating shafts 51 .

[0052] Furthermore, a ground nail 7 may be inserted into the socket 6, and the socket 6 and the ground nail 7 cooperate to fix the grass sample survey quadratometer, so that the grass sample survey quadratometer will not be displaced during sampling to affect the sampling accuracy;

[0053] Furthermore, the same U-shaped nail 8 is inserted into the first adjusting rod 3 and the second adjusting rod 4, and the U-shaped nail 8 is used to fix the first adjusting rod 3 and the second adjusting rod 4; when the grass sample survey quadrat is unfolded, the two ends of the U-shaped nail 8 are respectively inserted into the insertion holes 6 of the first adjusting rod 3 and the second adjusting rod 4. At this time, the first adjusting rod 3 and the second adjusting rod 4 are relatively fixed, and the grass sample survey quadrat is fixed to the ground.

[0054] Furthermore, scales are respectively provided on the rod bodies of the first fixing rod 1 and the second fixing rod 2, and the units of the scales are usually centimeters; when the grass sample survey quadrat is folded, the height, coverage, etc. of the measured sample can be visually observed using the scales.

[0055] The working principle of this utility model:

[0056] like Figures 1 to 9 As shown in the figure, in order to save space and facilitate the measurement personnel to carry it, the grass sample survey quadrat is as follows: Figure 3 In the middle folding state, when folded, the measurement personnel can measure the height and coverage of the sample through the scales on the first fixing rod 1 and the second fixing rod 2;

[0057] When sampling is required, the first adjustment rod 3 and the second adjustment rod 4 are respectively pulled out from the inner cavity of the first fixed rod 1 and the second fixed rod 2, respectively, with the rotation axis 51 as the center, so that the first fixed rod 1 and the first adjustment rod 3 are perpendicular to each other, and the second fixed rod 2 and the second adjustment rod 4 are perpendicular to each other, so that the grass sample survey quadrat is as follows: Figure 2 The second fixing rod 2 is in the middle half-folded state, and then the second fixing rod 2 is flipped around the hinge 52 so that the second fixing rod 2 and the first fixing rod 1 are perpendicular to each other, and the first adjusting rod 3 and the second adjusting rod 4 are stretched. At this time, the unfolded grass sample survey quadrat is 1m*1m square, and then the ground nails 7 and U-shaped nails 8 are inserted from the socket 6 to fix it to the ground surface, so that the grass sample survey quadrat will not be displaced to affect the sampling accuracy;

[0058] When sampling is completed, remove the ground nail 7 and the U-shaped nail 8, retract and rotate the first adjusting rod 3 and the second adjusting rod 4, so that the first adjusting rod 3 and the second adjusting rod 4 are respectively retracted into the first fixed rod 1 and the second fixed rod 2, then retract the first fixed rod 1 and the second fixed rod 2, and then flip the second fixed rod 2 so that the second fixed rod 2 overlaps with the first fixed rod 1.

[0059] However, as is well known to those skilled in the art, the working principles of the hinge 52 and the U-shaped nail 8 are commonplace and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any selections according to their needs or convenience.

[0060] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0061] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A portable grass sample survey quadrat, comprising a sampling frame, wherein the sampling frame comprises a first fixing rod (1), a second fixing rod (2), a first adjusting rod (3) and a second adjusting rod (4); characterized in that: It also comprises a rotating assembly (5), wherein the rotating assembly (5) is used to interconnect the first fixing rod (1), the second fixing rod (2), the first adjusting rod (3) and the second adjusting rod (4); One end of the first fixing rod (1) is rotatably connected to one end of the second fixing rod (2) via a rotating assembly (5); the other end of the first fixing rod (1) is rotatably connected to one end of the first adjusting rod (3) via the rotating assembly (5); the other end of the second fixing rod (2) is rotatably connected to one end of the second adjusting rod (4) via the rotating assembly (5); and the free end of the first adjusting rod (3) and the free end of the second adjusting rod (4) are in contact with each other.

2. A portable grass sample survey quadrat according to claim 1, characterized in that: The rotating assembly (5) is a hinge (52); the ends of the first fixing rod (1) and the second fixing rod (2) close to each other are connected to the same hinge (52), the ends of the first fixing rod (1) and the first adjusting rod (3) close to each other are connected to the same hinge (52), and the ends of the second fixing rod (2) and the second adjusting rod (4) close to each other are connected to the same hinge (52).

3. A portable grass sample survey quadrat according to claim 2, characterized in that: The first fixing rod (1), the second fixing rod (2), the first adjusting rod (3) and the second adjusting rod (4) are all in the shape of an isosceles trapezoid, and the base angles of the isosceles trapezoids are all 45 degrees.

4. A portable grass sample survey quadrat according to claim 1, characterized in that: The rotating assembly (5) comprises a rotating shaft (51); an end of the first fixing rod (1) adjacent to the first adjusting rod (3) is provided with a same rotating shaft (51); an end of the second fixing rod (2) adjacent to the second adjusting rod (4) is provided with a same rotating shaft (51); inner cavities are formed inside the first fixing rod (1) and the second fixing rod (2) respectively; and an upper part of an end of the first fixing rod (1) adjacent to the second fixing rod (2) is provided with a same hinge (52).

5. A portable grass sample survey quadrat according to claim 4, characterized in that: The first fixing rod (1), the second fixing rod (2), the first adjusting rod (3) and the second adjusting rod (4) are respectively telescopically arranged.

6. A portable grass sample survey quadrat according to claim 5, characterized in that: A side wall at one end of the first fixing rod (1) close to the first adjusting rod (3) and a side wall at one end of the second fixing rod (2) close to the second adjusting rod (4) are respectively provided with a limiting component (11), the limiting component (11) being used to limit the angle at which the sampling frame is opened.

7. The portable grass sample survey quadrat according to claim 4, characterized in that: Both ends of the first fixing rod (1), the second fixing rod (2), the first adjusting rod (3) and the second adjusting rod (4) are respectively provided with insertion holes (6); the insertion holes (6) also penetrate the rotating shaft (51), and the axis of the insertion holes (6) is coaxial with the axis of the rotating shaft (51).

8. The portable grass sample survey quadrat according to claim 7, characterized in that: A ground nail (7) and a U-shaped nail (8) can be inserted into the insertion hole (6), the ground nail (7) is used to fix the grass sample survey quadrat, and the U-shaped nail (8) is used to fix the first adjustment rod (3) and the second adjustment rod (4).

9. The portable grass sampling survey quadrat according to claim 1, characterized in that: A plurality of subdivided line holes (12) are equidistantly arranged on the rod bodies of the first fixing rod (1), the second fixing rod (2), the first adjusting rod (3) and the second adjusting rod (4).

10. The portable grass sample survey quadrat according to claim 1, characterized in that: The first fixing rod (1) and the second fixing rod (2) are respectively provided with scales on their rod bodies.

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