Adjustable triangular rule for drawing

Abstract

The utility model discloses an adjustable triangular rule for drawing, which comprises a middle edge, a first mounting groove and a second mounting groove are respectively arranged at two ends of the middle edge, a short edge is movably arranged in the first mounting groove, a long edge is movably arranged in the second mounting groove, a through groove is arranged on the long edge, rectangular grooves are arranged on the inner walls of two sides of the through groove, and the rectangular grooves are arranged on the inner walls of two sides of the through groove. Positioning structures are arranged on the front faces and the back faces of the short edges and movably connected with the rectangular grooves. By arranging the rotating rod, the pointer and the angle scale, when the angle is adjusted, the short edge is rotated, the short edge drives the rotating rod and the mounting box, the mounting box slides in the rectangular groove, the rotating rod drives the pointer, when the pointer rotates, a user can observe the reading on the angle scale, and the short edge can be stopped rotating when the pointer moves to the required angle value. Angle adjustment of the triangular ruler is achieved, so that drawing of non-standard angle lines can be met, and the application range of equipment is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to stationery technical field especially relates to a drawing adjustable type set square. BACKGROUND

[0002] The ruler is also called ruler, is used to draw line segment, measure length tool, the ruler usually has the scale to measure length, and some rulers, in the middle leave special shape such as letter or circular hole, facilitate user drawing, make different occasion use's ruler to its requirement and standard are different, and the set square is widely used in mathematics, drawing course learning process.

[0003] But the traditional set square is generally fixed angle right triangle, in actual drawing process, often need to draw various non-standard angle line, at this time, the traditional fixed angle set square cannot meet the demand, for this, a drawing adjustable type set square is provided. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art and provides a drawing adjustable type set square.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a drawing adjustable type set square, including middle side, the both ends of middle side are equipped with first installation slot and second installation slot respectively, the short side is movably arranged in first installation slot, the long side is movably arranged in second installation slot, the long side is equipped with through groove, the both sides inner walls of through groove are equipped with rectangular groove, the front and back of short side are equipped with positioning structure, and the positioning structure and rectangular groove are movably connected.

[0006] As a further description of the above technical scheme:

[0007] The top of middle side is fixedly equipped with angle disc, the first installation slot is movably arranged with rotating rod, one end of rotating rod penetrates the front inner wall of first installation slot and is fixedly equipped with pointer, and the short side is fixedly connected with rotating rod.

[0008] As a further description of the above technical scheme:

[0009] The front inner wall and back inner wall of first installation slot are equipped with round hole, the bearing is fixedly arranged in round hole, and the inner ring of bearing is fixedly sleeved on rotating rod.

[0010] As a further description of the above technical scheme:

[0011] The positioning structure comprises a mounting box fixedly connected with the short side, the mounting box is in a cylindrical shape, two connecting frames are movably arranged on the inner walls of the two sides of the mounting box, a pressing plate is fixedly arranged at the end of the two connecting frames away from each other, a guide plate is fixedly arranged at the end of the two connecting frames close to each other, a spring is fixedly arranged on the top of the guide plate, the top of the spring is fixedly connected with the top inner wall of the mounting box, two supporting columns are fixedly arranged on the bottom inner wall of the mounting box, a guide rod is movably arranged in each of the two supporting columns, a top block is fixedly arranged on the top of the guide rod, and a pressing rod is movably arranged on the top inner wall of the mounting box, and a pressing handle is fixedly arranged on the top of the pressing rod.

[0012] As a further description of the above technical solution:

[0013] The bottom of the pressing plate is fixedly provided with an anti-skid pad made of rubber.

[0014] As a further description of the above technical solution:

[0015] Two sliding grooves are arranged on the inner wall of the mounting box, limit grooves are arranged on the inner walls of the two sides of the sliding grooves, limit blocks are fixedly arranged on the two sides of the connecting frame, and the limit blocks and the limit grooves are movably connected.

[0016] As a further description of the above technical solution:

[0017] Two limit strips are fixedly arranged on the outside of the pressing rod, and two limit plates are fixedly arranged on the outer wall of the bottom end of the pressing rod.

[0018] The utility model has the advantages of the following:

[0019] 1. Compared with the prior art, the adjustable drawing triangular ruler is provided with a rotating rod, a pointer and an angle disc, the short side is rotated to adjust the angle, the short side drives the rotating rod and the mounting box, the mounting box slides in the rectangular groove, the rotating rod drives the pointer, the user can observe the indicated number on the angle disc when the pointer is rotated, the short side is stopped from rotating when the pointer is moved to the required angle value, the angle of the triangular ruler is adjusted, the drawing of a non-standard angle line can be realized, and the adaptability range of the equipment is improved.

[0020] 2. Compared with the prior art, the adjustable drawing triangular ruler is provided with a mounting box, a sliding groove, a connecting frame, a pressing plate, a guide plate, an anti-skid pad, a spring, a supporting column, a guide rod, a top block, a pressing rod and a pressing handle, the pressing rod is pressed before the angle is adjusted, the two guide rods are driven, the top block is driven, the connecting frame is pushed upward, the pressing plate is separated from the long side, the short side can be rotated, the pressing rod is released after the adjustment is completed, the guide plate is reset by the spring, the connecting frame is reset by the guide plate, the pressing plate is attached to the long side by the connecting frame, the short side is quickly positioned, and the use convenience of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 A three-dimensional structure schematic diagram of the adjustable triangular ruler for drawing is provided in the utility model;

[0022] Fig. 2 A three-dimensional schematic diagram of the positioning structure in the adjustable triangular ruler for drawing is provided in the utility model;

[0023] Fig. 3 A side sectional schematic diagram of the positioning structure in the adjustable triangular ruler for drawing is provided in the utility model.

[0024] Legend:

[0025] 1, middle side; 2, first installation groove; 3, second installation groove; 4, short side; 5, long side; 6, rectangular groove; 7, positioning structure; 701, installation box; 702, sliding groove; 703, connecting frame; 704, pressing plate; 705, guide plate; 706, non-slip pad; 707, spring; 708, support column; 709, guide rod; 710, top block; 711, pressing rod; 712, pressing handle; 8, rotating rod; 9, pointer; 10, angle disc. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] With reference to Figs. 1 to 3 The utility model provides a kind of adjustable triangular ruler for drawing: including middle side 1, the two ends of middle side 1 are equipped with first installation groove 2 and second installation groove 3, first installation groove 2 is movably equipped with short side 4, second installation groove 3 is movably equipped with long side 5, long side 5 is equipped with through slot, both sides inner wall of through slot is equipped with rectangular groove 6, positioning structure 7 and rectangular groove 6 are movably connected.

[0028] In order to realize the angle adjustment, the top of the middle side 1 is fixedly provided with an angle scale 10, the first mounting slot 2 is movably provided with a rotating rod 8, the front inner wall and the back inner wall of the first mounting slot 2 are both provided with a circular hole, the circular hole is fixedly provided with a bearing, the inner ring of the bearing is fixedly sleeved on the rotating rod 8, one end of the rotating rod 8 penetrates through the front inner wall of the first mounting slot 2 and is fixedly provided with a pointer 9, the short side 4 is fixedly connected with the rotating rod 8, when the angle is adjusted, the short side 4 is rotated, the short side 4 drives the rotating rod 8 and the mounting box 701, the mounting box 701 slides in the rectangular slot 6, the rotating rod 8 drives the pointer 9, when the pointer 9 is rotated, the user can observe the indication on the angle scale 10, the pointer 9 is moved to the required angle value, and then the short side 4 is stopped from rotating, the angle adjustment of the triangular ruler is realized, and thus the drawing of the non-standard angle line can be met, and the adaptation range of the equipment is improved.

[0029] In order to realize the quick positioning, the front surface and the back surface of the short side 4 are both provided with a positioning structure 7, the positioning structure 7 comprises a mounting box 701 fixedly connected with the short side 4, the mounting box 701 is in a cylindrical shape, the two side inner walls of the mounting box 701 are both movably provided with a connecting frame 703, the inner wall of the mounting box 701 is provided with two sliding grooves 702, the two side inner walls of the sliding groove 702 are both provided with a limiting slot, the two sides of the connecting frame 703 are both fixedly provided with a limiting block, the limiting block and the limiting slot are movably connected, the two connecting frames 703 are both fixedly provided with a pressing plate 704 at the far end away from each other, the bottom of the pressing plate 704 is fixedly provided with an anti-skid pad 706 made of rubber, the two connecting frames 703 are both fixedly provided with a guide plate 705 at the end close to each other, the top of the guide plate 705 is fixedly provided with a spring 707, the top of the spring 707 and the top inner wall of the mounting box 701 are fixedly connected, the bottom inner wall of the mounting box 701 is fixedly provided with two supporting columns 708, the two supporting columns 708 are both movably provided with a guide rod 709, the top of the guide rod 709 is fixedly provided with a top block 710, the top inner wall of the mounting box 701 is movably provided with a pressing rod 711, the outer portion of the pressing rod 711 is fixedly provided with two limiting strips, the bottom end outer wall of the pressing rod 711 is fixedly provided with two limiting plates, the top of the pressing rod 711 is fixedly provided with a pressing handle 712, before the angle is adjusted, the pressing rod 711 is pressed to drive the two guide rods 709, the guide rods 709 drive the top block 710, the top block 710 pushes the connecting frame 703 upwards, the connecting frame 703 drives the pressing plate 704 to move upwards and separate from the long side 5, so that the short side 4 can be rotated, after the adjustment is completed, the pressing rod 711 is loosened, the spring 707 drives the guide plate 705 to reset, the guide plate 705 drives the connecting frame 703 to reset, the connecting frame 703 drives the pressing plate 704 to adhere to the long side 5, the quick positioning of the short side 4 is realized, and the use convenience of the equipment is improved.

[0030] Working principle: when the angle of the triangular ruler needs to be adjusted, first, two pressure handles 712 are pressed inward at the same time, the pressure handles 712 drive the pressure rods 711, the pressure rods 711 press the two guide rods 709, the two guide rods 709 rotate with the connecting point of the supporting column 708 as the fulcrum, the guide rods 709 drive the top block 710, the top block 710 presses the top connecting frame 703, the connecting frame 703 drives the pressing plate 704 to move upwards, the pressing plate 704 drives the non-slip pad 706 to separate from the long side 5, then the short side 4 is rotated, the short side 4 drives the rotating rod 8 and the mounting box 701, the mounting box 701 slides in the rectangular groove 6, the rotating rod 8 drives the pointer 9, when the pointer 9 rotates, the user can observe the indication on the angle scale 10, so that the required angle can be adjusted more accurately, after the adjustment is completed, the two pressure handles 712 are loosened, the two springs 707 push the two guide plates 705, the guide plates 705 drive the connecting frame 703 to reset, the connecting frame 703 drives the pressing plate 704 to make the non-slip pad 706 adhere to the long side 5, the positioning of the short side 4 is realized, and the adjustment of the angle of the triangular ruler is completed.

[0031] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A set square with adjustable triangle for plotting, comprising a middle side (1), characterized in that: The both ends of the middle side (1) are respectively provided with a first mounting slot (2) and a second mounting slot (3), the first mounting slot (2) is movably provided with a short side (4), the second mounting slot (3) is movably provided with a long side (5), the long side (5) is provided with a through slot, the both side inner walls of the through slot are both provided with a rectangular slot (6), the front face and the back face of the short side (4) are both provided with a positioning structure (7), and the positioning structure (7) and the rectangular slot (6) are movably connected.

2. The adjustable triangle for plotting according to claim 1, wherein: The top of the middle side (1) is fixedly provided with a scale disc (10), the first mounting slot (2) is movably provided with a rotating rod (8), one end of the rotating rod (8) penetrates through the front inner wall of the first mounting slot (2) and is fixedly provided with a pointer (9), and the short side (4) and the rotating rod (8) are fixedly connected.

3. An adjustable triangle for plotting according to claim 2, wherein: The front inner wall and the back inner wall of the first mounting slot (2) are both provided with a circular hole, the circular hole is fixedly provided with a bearing, and the inner ring of the bearing is fixedly sleeved on the rotating rod (8).

4. The adjustable triangle for plotting according to claim 1, wherein: The positioning structure (7) comprises a mounting box (701) fixedly connected with the short side (4), the mounting box (701) is cylindrical, the both side inner walls of the mounting box (701) are both movably provided with a connecting frame (703), the far end of the two connecting frames (703) is fixedly provided with a pressing plate (704), the close end of the two connecting frames (703) is fixedly provided with a guide plate (705), the top of the guide plate (705) is fixedly provided with a spring (707), the top of the spring (707) and the top inner wall of the mounting box (701) are fixedly connected, the bottom inner wall of the mounting box (701) is fixedly provided with two supporting columns (708), the two supporting columns (708) are both movably provided with a guide rod (709), the top of the guide rod (709) is fixedly provided with a top block (710), the top inner wall of the mounting box (701) is movably provided with a pressing rod (711), and the top of the pressing rod (711) is fixedly provided with a pressing handle (712).

5. An adjustable triangle for plotting according to claim 4, wherein: The bottom of the pressing plate (704) is fixedly provided with an antiskid pad (706), and the antiskid pad (706) is made of rubber.

6. An adjustable triangle for plotting according to claim 4, wherein: The inner wall of the mounting box (701) is provided with two sliding grooves (702), the both side inner walls of the sliding groove (702) are both provided with a limiting groove, the both sides of the connecting frame (703) are both fixedly provided with a limiting block, and the limiting block and the limiting groove are movably connected.

7. An adjustable triangle for plotting according to claim 4, wherein: The outer portion of the pressing rod (711) is fixedly provided with two limiting strips, and the bottom end outer wall of the pressing rod (711) is fixedly provided with two limiting plates.

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