CN210347166U - Foldable sample square frame - Google Patents

Abstract

The utility model provides a folded cascade's sample square frame utilizes the loose-leaf of opposition setting, and one is in the outside, and one is in the inboard, and all personally submits 45 degrees and realize twice folding with the level. The structure includes: the fixing rods are square bars and connected through four hinges which are arranged in pairs, small holes are formed in the fixing rods, and L-shaped clamping grooves are formed in the outer sides of the joints of the fixing rods. The utility model has faster unfolding speed and folding speed, and can rapidly operate; the use and carrying are convenient, and the occupied space is small; easy folding, not fragile.

Description

Foldable sample square frame

Technical Field

The utility model relates to an open-air investigation instrument, specifically speaking are folding appearance square frame belongs to meadow ecological investigation equipment field.

Background

The sample box is a necessary tool for field investigation, and the size standard of the sample box is generally 1m multiplied by 1 m.

The existing sample square frame is mostly made of aluminum alloy materials and generally consists of four aluminum battens.

The common sample frame has large volume, large mass, easy breakage and difficult carrying. In order to achieve convenience and rapidness in field measurement, workers can determine the size of a sample by using a string or a tape measure and then measure the sample, and the method easily causes the problems of unfixed measuring boundary, irregular sample shape and the like, and greatly influences the measuring result.

At present, a plurality of sample square frames realize the folding function, but only realize the folding of two edges, other edges are contracted or combined in other modes, and the form that four edges connected end to end are directly folded into one edge is not completely realized. In view of the above consideration, it is significant to design a sample square frame for field investigation, which can be folded and folded quickly, set a sample prescription quickly, set an area accurately and is convenient to carry. The utility model discloses a break through in folding at four frames of end to end connection.

SUMMERY OF THE UTILITY MODEL

In view of the defects of the prior art, the utility model provides a foldable style square frame with simple structure, reasonable design and convenient use.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a foldable template frame comprising: the fixing rods are square bars and connected through four hinges which are arranged in pairs, small holes are formed in the fixing rods, and L-shaped clamping grooves are formed in the outer sides of the joints of the fixing rods.

Preferably, the fixing rod 1 is made of aluminum alloy or iron.

Preferably, one side of the fixed rod is provided with a clamping groove respectively, and the clamping grooves are matched with the buckles.

Preferably, the number of the clamping grooves is 8, the clamping grooves are uniformly formed in reasonable positions of the fixing rods, and the buckles are made of aluminum alloy or iron.

Preferably, four angles of sample square frame all have "L" type buckle, and draw-in groove mutually supports on buckle and the dead lever, and the buckle is made for aluminum alloy or iron.

Preferably, a pair of opposite hinges is arranged on the inner side of the square frame and forms an included angle of 45 degrees with the horizontal plane; in addition, a pair of opposite hinges are arranged outside the square frame and form an included angle of 45 degrees with the horizontal plane; when the folding device is folded, the inner side loose-leaf is bent firstly to enable the square frame to be in an L shape, and then the outer side loose-leaf is bent to enable the four fixing rods to be parallel and folded.

Preferably, the length of the fixing rod is 1-5 m, and the small holes on the fixing rod are arranged every 0.1 m.

Preferably, the rope passes the aperture, and the rope is made for nylon material, plastics material or resin material.

Drawings

Fig. 1 is a schematic view of the overall structure of a foldable style square frame of the present invention.

Fig. 2 is a schematic view of the fixing rod structure of the present invention.

Fig. 3 is a schematic front view of the utility model after the sample frame is folded.

Fig. 4 is a schematic left view of the utility model after the sample frame is folded.

Fig. 5 is a schematic top view of the sample of the present invention after being folded in a square frame.

Fig. 6 is a schematic view of the hinge 3b and the buckle at the corner of the square frame of the utility model.

The fixing rod 1 comprises an L-shaped buckle component 2, a buckle 2a, a clamping groove 2b, a hinge 3a (b) and a round small hole 4.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the invention shown in the drawings and described in accordance with the same are merely exemplary and the invention is not limited to these embodiments.

Here, it should be further noted that, in order to avoid obscuring the technical solution of the present invention by unnecessary details, only the structures and/or processing steps closely related to the solution according to the present invention are shown in the drawings, and other details that are not relevant are omitted.

Example 1

The utility model provides a folded cascade appearance square frame device suitable for open-air sample work, include: the fixing device comprises four fixing rods 1, wherein the fixing rods 1 are in a square strip shape, the fixing rods 1 are connected through four hinges 3, the hinges 3 are arranged in pairs, small holes 4 are formed in the fixing rods 1, and L-shaped clamping grooves 2b are formed in the outer sides of the joints of the fixing rods 1.

Further, the fixing rod 1 is made of aluminum alloy or iron.

Furthermore, a clamping groove 2b is formed in one surface of the fixed rod respectively, and the clamping groove 2b is matched with the buckle 2 a.

Further, the number of the clamping grooves 2b is 8, the clamping grooves are uniformly formed in reasonable positions of the fixing rods, and the clamping buckles are made of aluminum alloy or iron.

Furthermore, 4 angles of the sample square frame are provided with L-shaped buckles 2a, the buckles are matched with the clamping grooves 2b on the fixed rod, and the buckles are made of aluminum alloy or iron.

Further, a pair of opposite hinges 3b of the hinges 3 are arranged on the inner side of the square frame and form an included angle of 45 degrees with the horizontal plane; in addition, a pair of opposite loose leaves 3a are arranged outside the square frame and form an included angle of 45 degrees with the horizontal plane. When folding, the hinge 3a is bent to make the frame in an L shape, and then the hinge 3b is bent to make the four fixing rods 1 parallel and folded.

Further, the length of the fixing rod 1 is 1m, and the small holes 4 on the fixing rod 1 are arranged one by one at every 0.1 m.

Further, the rope passes through the small hole, the rope is made of nylon materials, plastic materials or resin materials, and the length of the rope is at least 10.6m

The utility model provides a folding portable sample square frame device suitable for field sampling work, which comprises four fixing rods 1 with equal length, wherein the four fixing rods 1 are connected with each other through hinges 3, and four sides of the four fixing rods are connected end to finally form a quadrilateral frame; the L-shaped buckle components are fixed at each corner of the quadrangle to form a square; the hinge 3 is welded on the fixed rod 1, so that the hinge can rotate and move without falling off; the rope penetrates through the small hole in the fixing rod to finally form a square of 0.1m multiplied by 0.1m inside the sample square frame.

Example 2

The utility model provides a pair of folding portable appearance square frame device's theory of operation and application method suitable for field sampling work. When the foldable square frame is unfolded, as shown in fig. 1, the L-shaped buckle 2a is taken down, the square frame is folded from the position 3a to form two fixing rods which are vertical to each other, and finally, the square frame is folded from the position 3b to form the shapes of fig. 3, 4 and 5 after being folded. When the folding style box needs to be opened, the folding style box is unfolded according to the reverse order of folding.

When a 0.1m multiplied by 0.1m square is required to be formed inside the sample square frame by using ropes, the combined sample square frame is placed on a sample plot, the area of the small square grid of the plant appearing in the square frame exceeds 1/2 is marked as 1, the area of the small square grid appearing in the square frame is marked as 0 when the area of the small square grid is less than 1/2, and finally the total number of the number values in the small square grid in the square frame is counted to be the actual cover degree value. And after the measurement is finished, the sample square frame is folded back according to the original path.

Has the advantages that:

the key points of the improved equipment are as follows: compared with the prior art, the utility model has wide material source and lower manufacturing cost in production; compared with the prior art, the unfolding speed and the folding speed are higher, and the operation can be rapidly carried out; the use and carrying are convenient, and the occupied space is small; easy folding and difficult damage; the construction of a frame with a sample size of less than 1m and 0.1m can be simultaneously met.

The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.

Claims (7)

1. A foldable sample frame, characterized in that its structure comprises: the fixing rods are square bars and connected through four hinges, the hinges are arranged in pairs, small holes are formed in the fixing rods, L-shaped clamping grooves are formed in the outer sides of the joints of the fixing rods, and a pair of opposite hinges are arranged on the inner sides of the square frames and form an included angle of 45 degrees with the horizontal plane; in addition, a pair of opposite hinges are arranged outside the square frame and form an included angle of 45 degrees with the horizontal plane; when the folding device is folded, the inner side loose-leaf is bent firstly to enable the square frame to be in an L shape, and then the outer side loose-leaf is bent to enable the four fixing rods to be parallel and folded.

2. Foldable sample holder as claimed in claim 1, characterized in that said fixing bars are made of aluminium alloy or iron.

3. A foldable sample frame as claimed in claim 1, wherein said fixing bars are provided with a slot on one side, and said slot and said fastener are engaged with each other.

4. A foldable sample frame as claimed in claim 1, wherein said number of said slots is 8, said slots are uniformly arranged at reasonable positions of said fixing rods, and said fasteners are made of aluminum alloy or iron.

5. A foldable sample frame as claimed in claim 1, wherein the sample frame has "L" shaped buckles at four corners, the buckles are engaged with the slots on the fixing rods, and the buckles are made of aluminum alloy or iron.

6. Foldable sample holder according to claim 1, characterized in that the length of the fixing rods is 1-5 m, and the holes in the fixing rods are arranged one for every 0.1 m.

7. A foldable sample frame as claimed in claim 1, wherein said holes are threaded by ropes made of nylon, plastic or resin.

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