Folding set square

Abstract

The utility model relates to the technical field of teaching aids, and particularly discloses a foldable set square which comprises a left bevel edge plate and a right bevel edge plate which are symmetrically arranged, the close ends of the left bevel edge plate and the right bevel edge plate are movably connected through a hinged shaft, and the far ends of the left bevel edge plate and the right bevel edge plate are connected with triangular blocks. A first short edge and a second short edge are telescopically connected to the interiors of the left bevel edge plate and the right bevel edge plate respectively, the first short edge and the second short edge can rotate oppositely when sliding to the farthest end and form a triangular structure through end connection, and scale marks are arranged on the left bevel edge plate, the right bevel edge plate, the first short edge and the second short edge. According to the folding set square, the size of the folding set square is greatly reduced when the folding set square is not used, carrying and storage are more convenient, after the folding set square is unfolded, the size of the folding set square can meet the requirement for enough precision of the set square in the drawing process, and the use experience of a user can be effectively improved while the teaching effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to teaching aid technical field, concretely relates to a folding set square. BACKGROUND

[0002] As one of the commonly used teaching aids in mathematics teaching, the set square plays a vital role in assisting teachers to accurately draw on the blackboard and intuitively display geometric concepts and principles. However, there are some deficiencies in the design of the set square on the market at present.

[0003] On the one hand, the traditional set square is often stereotyped and bulky, which not only occupies a lot of storage space, but also is inconvenient to carry and transfer during the teaching process. On the other hand, although there are some small set squares on the market, although they are convenient to store and carry, their size often limits the accuracy of drawing in actual use, especially for occasions where complex geometric figures need to be drawn, small set squares are difficult to meet the teaching needs due to their limitations, thereby affecting the teaching effect to some extent.

[0004] Therefore, we propose a folding set square to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0005] In order to solve the technical problems existing in the prior art, the utility model provides a folding set square.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A folding set square, comprising symmetrically arranged left and right inclined edge plates, the proximal ends of the left and right inclined edge plates are movably connected through a hinge shaft, the distal ends of the left and right inclined edge plates are connected with a triangular block, the interiors of the left and right inclined edge plates are respectively connected with first and second short edges in an extendable manner, the first and second short edges can rotate towards each other when sliding to the most distal end, and form a triangular structure through end connection, and scale lines are arranged on the left and right inclined edge plates, the first and second short edges.

[0008] In a further technical scheme, the interiors of the left and right inclined edge plates are each provided with a cavity, the first and second short edges are respectively slidingly installed in the cavities of the left and right inclined edge plates, the left and right inclined edge plates are each provided with an opening below the cavity, the top surfaces of the left and right inclined edge plates are each provided with a guide groove, the end portions of the first and second short edges are each provided with a rotating shaft, and the rotating shafts are slidingly arranged in the guide grooves.

[0009] In a further technical solution, the end of the first short side is provided with a connecting block, the connecting block is provided with a clamping tooth, the end of the second short side is provided with a clamping plate, and the clamping plate is provided with a clamping groove matched with the clamping tooth.

[0010] In a further technical solution, the inner part of the proximal end of the left and right bevel plates is provided with a first magnet, and the end of the first and second short sides is provided with a second magnet attracted to the first magnet.

[0011] In a further technical solution, the left and right bevel plates are movably connected with the triangular blocks through connecting shafts, and the left and right bevel plates are provided with a compression assembly capable of compressing the triangular blocks.

[0012] In a further technical solution, the compression assembly comprises a connecting rod and an elastic compression sheet, the left and right bevel plates are provided with the connecting rod, and the elastic compression sheet is movably sleeved on the connecting rod and elastically compressed on the triangular block.

[0013] In a further technical solution, it further comprises an elastic band, which can be sleeved on the first and second short sides after the left and right bevel plates are folded.

[0014] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present application are:

[0015] 1. Compared with the traditional triangular plate, the folding design and the design that the first and second short sides are respectively slidably installed in the cavities of the left and right bevel plates greatly reduce the volume of the folding triangular plate when not in use, making carrying and storage more convenient, and after unfolding, the size can meet the sufficient accuracy of the triangular plate in drawing, thereby improving the teaching effect and effectively improving the user experience.

[0016] 2. The sliding cooperation of the guide groove and the rotating shaft provides a certain path for the first and second short sides, ensuring the stability and smoothness of the first and second short sides during the extension and retraction process, and through the opening below the cavity, the first and second short sides can be rotated to the predetermined position to complete the end butt joint, thereby constructing a complete and stable triangular structure.

[0017] 3. In the present application, the first and second short sides are attracted to the first magnets inside the left and right bevel plates through the second magnets at the ends, ensuring that the first and second short sides can be tightly adsorbed inside the left and right bevel plates in the storage state, effectively preventing accidental sliding or separation, enhancing the stability and safety of the folding triangular plate during storage, and providing a more convenient and secure user experience.

[0018] 4、The utility model discloses the rotation mechanism of triangular block with left bevel plate, right bevel plate makes, triangular block can be folded and is stored, avoid the risk that the sharp angle of triangular block can hurt people, and effectively compact triangular block through compacting subassembly, not only ensure the drawing accuracy under the use state, also avoid the noise interference that the wobble possibly produces under the storage state. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be through example and the mode of referring to the drawing, wherein:

[0020] Figure 1 It is the structural schematic diagram of the utility model;

[0021] Figure 2 It is Figure 1 It is the partial enlarged schematic diagram of A place in the middle;

[0022] Figure 3 It is the structural schematic diagram of the utility model under the use state.

[0023] The drawing figure is 1-left bevel plate, 2-right bevel plate, 3-hinge shaft, 4-triangular block, 5-first short side, 6-second short side, 7-scale line, 8-opening, 9-guide slot, 10-rotation axis, 11-connecting block, 12-claw, 13-clamping plate, 14-clamping groove, 15-connecting shaft, 16-connecting rod, 17-elastic compression sheet, 18-rubber band. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of the utility model protection.

[0025] Reference Figures 1-3 The utility model provides a folding triangular board, including symmetrically setting left bevel plate 1 and right bevel plate 2, the similar end of left bevel plate 1 and right bevel plate 2 is connected through hinge shaft 3, the remote end of left bevel plate 1 and right bevel plate 2 is connected with triangular block 4, the inside of left bevel plate 1 and right bevel plate 2 is connected with first short side 5 and second short side 6 respectively, first short side 5 and second short side 6 slide to the most remote end and can be rotated to each other, and constitute triangular structure through end connection, left bevel plate 1, right bevel plate 2, first short side 5 and second short side 6 all are equipped with scale line 7.

[0026] The specific use method of the folding triangular board is as follows:

[0027] Firstly, in the initial storage state, the left bevel plate 1 and the right bevel plate 2 overlap together to form a compact and portable whole. When the triangular board is needed to be used, the user can unfold the left bevel plate 1 and the right bevel plate 2 through the hinge shaft 3 until the left bevel plate 1 and the right bevel plate 2 are completely flat and located on the same straight line. Next, the first short side 5 and the second short side 6 are pulled out from the inside of the left bevel plate 1 and the right bevel plate 2 respectively and are elongated to the maximum extension length. Then, by rotating the first short side 5 and the second short side 6 towards each other and connecting the ends of the first short side 5 and the second short side 6 together after they are rotated to the predetermined position, a complete and stable triangular structure is formed. At this time, the left bevel plate 1, the right bevel plate 2, the first short side 5, the second short side 6 and the triangular blocks 4 on the left bevel plate 1 and the right bevel plate 2 together constitute a triangular board drawing tool. During the drawing process, the user can use the scale lines 7 on the left bevel plate 1, the right bevel plate 2, the first short side 5 and the second short side 6 to accurately measure and draw the required geometric figures to meet various teaching needs. When the use is completed, the user only needs to operate in the reverse order of the above steps to fold the triangular board back to the storage state. Compared with the traditional triangular board, the folding design greatly reduces the volume of the triangular board, making it more convenient to carry and store. After unfolding, its size can meet the sufficient accuracy of the triangular board during drawing, which not only improves the teaching effect but also effectively improves the user's experience.

[0028] In a specific embodiment, referring to Figure 1 and Figure 2 , the inside of the left bevel plate 1 and the right bevel plate 2 is provided with a cavity, the first short side 5 and the second short side 6 are respectively slidingly installed in the cavity of the left bevel plate 1 and the right bevel plate 2, the left bevel plate 1 and the right bevel plate 2 are respectively provided with an opening 8 below the cavity, the top surface of the left bevel plate 1 and the right bevel plate 2 is respectively provided with a guide groove 9, the end of the first short side 5 and the second short side 6 is respectively provided with a rotating shaft 10, and the rotating shaft 10 is slidingly arranged in the guide groove 9.

[0029] The design of the cavity enables the first short side 5 and the second short side 6 to be accommodated inside the left bevel plate 1 and the right bevel plate 2, thereby greatly reducing the volume of the folding triangular board when not in use, making it more convenient to carry and store. At the same time, the guide groove 9 provided on the top surface of the left bevel plate 1 and the right bevel plate 2 forms a sliding fit with the rotating shaft 10 provided at the end of the first short side 5 and the second short side 6, and the guide groove 9 provides a certain path for the sliding of the rotating shaft 10, ensuring the stability and smoothness of the first short side 5 and the second short side 6 during extension and retraction. In addition, the opening 8 below the cavity avoids the restriction of the left bevel plate 1 and the right bevel plate 2 on the rotation of the first short side 5 and the second short side 6, enabling the first short side 5 and the second short side 6 to rotate to a predetermined position and complete end-to-end docking, thereby constructing a complete and stable triangular structure.

[0030] In a specific embodiment, referring to Figure 1 and Figure 3 , the end of the first short side 5 is provided with a connecting block 11, and the connecting block 11 is provided with a clamping tooth 12, and the end of the second short side 6 is provided with a clamping plate 13, and the clamping plate 13 is provided with a clamping groove 14 matched with the clamping tooth 12.

[0031] After the first short side 5 and the second short side 6 are rotated to a predetermined position, the clamping tooth 12 on the connecting block 11 is clamped into the clamping groove 14 on the clamping plate 13, thereby stably connecting the first short side 5 and the second short side 6 together, and further forming a complete and not easily deformed triangular structure. This design not only connects stably, but also simplifies the connection and disassembly process of the first short side 5 and the second short side 6, greatly improving the user's experience.

[0032] In a specific embodiment, the inner part of the proximal end of the left bevel plate 1 and the right bevel plate 2 is provided with a first magnet, and the end of the first short side 5 and the second short side 6 is provided with a second magnet attracted to the first magnet.

[0033] When stored, the second magnet at the end of the first short side 5 and the second short side 6 is attracted to the first magnet inside the left bevel plate 1 and the right bevel plate 2, ensuring that in the storage state, the first short side 5 and the second short side 6 can be tightly adsorbed inside the left bevel plate 1 and the right bevel plate 2, effectively preventing them from accidentally sliding or detaching, enhancing the stability and safety of the folding triangular board when stored, and providing users with a more convenient and secure experience.

[0034] In a specific embodiment, referring to Figures 1-3 , the left bevel plate 1 and the right bevel plate 2 are movably connected to the triangular block 4 through a connecting shaft 15, and the left bevel plate 1 and the right bevel plate 2 are provided with a compression assembly capable of compressing the triangular block 4.

[0035] The left bevel plate 1 and the right bevel plate 2 are movably connected with the triangular block 4 through the connecting shaft 15, and a rotating mechanism of the left bevel plate 1 and the triangular block 4 and the right bevel plate 2 and the triangular block 4 is formed, so that the triangular block 4 can be folded and stored, and the risk that the sharp corner of the triangular block 4 may injure a person is avoided. In addition, the triangular block 4 can be effectively compressed through the compression assembly, and in the use state, the triangular block 4 can be prevented from shaking, so that the accuracy of drawing is ensured, and the drawing quality is improved. In the storage state, the compression assembly also prevents the triangular block 4 from shaking, so that noise interference that may be generated in the carrying or moving process is reduced.

[0036] In a specific embodiment, referring to Figures 1-3 , the compression assembly comprises a connecting rod 16 and an elastic compression sheet 17, the left bevel plate 1 and the right bevel plate 2 are each provided with the connecting rod 16, and the elastic compression sheet 17 is movably sleeved on the connecting rod 16 and elastically compressed on the triangular block 4.

[0037] The compression assembly is matched with the connecting rod 16 and the elastic compression sheet 17, in use, the elastic compression sheet 17 is first rotated to release the triangular block 4 from the unfolded state or the storage state, then the state of the triangular block 4 is adjusted, and then the elastic compression sheet 17 is rotated back to the original position and elastically compressed on the triangular block 4, so that the stability of the triangular block 4 in the use state or the storage state is ensured.

[0038] In a specific embodiment, referring to Figure 1 , the rubber band 18 can be sleeved on the first short side 5 and the second short side 6 after the left bevel plate 1 and the right bevel plate 2 are folded.

[0039] After the left bevel plate 1 and the right bevel plate 2 of the folding triangular plate are folded, the rubber band 18 is sleeved on the first short side 5 and the second short side 6, so that the folding triangular plate can be prevented from being accidentally unfolded, and a better use experience is brought to the user.

[0040] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A folding set square, characterized by The utility model provides a kind of folding ruler, including symmetrically arranged left bevel plate (1) and right bevel plate (2), the proximal end of left bevel plate (1) and right bevel plate (2) is movably connected by hinge shaft (3), and the distal end of left bevel plate (1) and right bevel plate (2) is connected with triangular block (4), and the inside of left bevel plate (1) and right bevel plate (2) is respectively connected with first short side (5) and second short side (6) in expansion and contraction, first short side (5) and second short side (6) can be rotated towards when sliding to the most distal end, and form triangular structure by end connection, and scale line (7) is equipped on left bevel plate (1), right bevel plate (2), first short side (5) and second short side (6).

2. The folding square according to claim 1, wherein, The inside of left bevel plate (1) and right bevel plate (2) is equipped with cavity, first short side (5) and second short side (6) are respectively slidably installed in the cavity of left bevel plate (1) and right bevel plate (2), and the lower of left bevel plate (1) and right bevel plate (2) in cavity is equipped with opening (8), the top surface of left bevel plate (1) and right bevel plate (2) is equipped with guide slot (9), and the end of first short side (5) and second short side (6) is equipped with rotating shaft (10), and rotating shaft (10) is slidably arranged in guide slot (9).

3. The folding square according to claim 1, wherein, The end of first short side (5) is equipped with connecting block (11), connecting block (11) is equipped with clamping tooth (12), the end of second short side (6) is equipped with clamping plate (13), and clamping plate (13) is equipped with clamping groove (14) matched with clamping tooth (12).

4. The folding square according to claim 1, wherein, The inside of proximal end of left bevel plate (1) and right bevel plate (2) is equipped with first magnet, and the end of first short side (5) and second short side (6) is equipped with second magnet attracted to first magnet.

5. A folding square according to any one of claims 1-4, characterized in that Left bevel plate (1) and right bevel plate (2) are movably connected with triangular block (4) by connecting shaft (15), and left bevel plate (1) and right bevel plate (2) are equipped with compression assembly that can compress triangular block (4).

6. A folding try square according to claim 5, wherein, The compression assembly includes connecting rod (16) and elastic compression sheet (17), and left bevel plate (1) and right bevel plate (2) are equipped with connecting rod (16), and elastic compression sheet (17) movably sets in connecting rod (16) and is elastically compressed on triangular block (4).

7. The folding try square according to claim 1, wherein It also includes rubber band (18), and rubber band (18) can be sleeved on first short side (5) and second short side (6) after left bevel plate (1) and right bevel plate (2) are folded.

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