Folding type drawing measuring ruler

Abstract

The utility model relates to the technical field of measuring rulers, and discloses a folding type drawing measuring ruler which comprises a measuring ruler body, the front end of the measuring ruler body is fixedly connected with scale marks, the left side of the measuring ruler body is provided with a containing groove, the inner wall of the containing groove is connected with a second measuring ruler in a sliding mode, and the inner wall of the second measuring ruler is provided with a clamping groove. A folding structure convenient to carry is fixedly arranged at the right end of the measuring ruler body; and the folding structure comprises a first extension plate, a rotating rod and a second extension plate. According to the folding type drawing measuring ruler, a second extension plate is rotationally connected with a rotating rod, so that a worker can rightwards rotate the measuring ruler body to a designated position to enable a correcting plate to abut against the second extension plate, and then a bolt is inwards screwed into a round hole, so that the measuring ruler body can be horizontally unfolded; the second measuring scale is pulled out from the inner wall of the storage groove, so that the length of the measuring scale is increased, the measuring scale body is designed to be foldable, the occupied space of the measuring scale body is reduced, and a worker can carry the measuring scale body conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring rulers, in particular to a foldable drawing measuring ruler. Background Art

[0002] A measuring ruler is a tool used to draw line segments, especially straight ones, and measure length. The ruler usually has scales to measure length. Some rulers have special shaped holes in the middle, such as letters or circles, to facilitate users to draw. They are usually used to measure and calculate length. They are generally divided into tape measures, vernier calipers, squares, and rulers.

[0003] A Chinese patent discloses a multifunctional ruler for house measurement and drawing (authorization announcement number CN212179778U). The patented technology includes a horizontal reference ruler, a vertical ruler arranged perpendicular to the horizontal reference ruler, and a horizontal telescopic measuring ruler arranged to slide up and down along the vertical ruler. The horizontal reference ruler is provided with a bubble level, the horizontal telescopic measuring ruler runs on the horizontal reference ruler, a slide groove is provided on the front surface of the horizontal telescopic measuring ruler, a slider is provided in the slide groove, a semicircular angle measuring instrument and a ruler are rotatably installed on the slider through a pin shaft, and the center line of the pin shaft coincides with the center line of the semicircular angle measuring instrument. The utility model has a simple structure and a reasonable design. Through the bubble level, the horizontal reference ruler and the horizontal telescopic measuring ruler can be adjusted to a horizontal state, so that the drawings drawn by people are more accurate.

[0004] In the prior art, a bubble level is used to adjust a horizontal reference ruler and a horizontal telescopic measuring ruler to a horizontal state, so that the drawings drawn by people are more accurate. With respect to the above and existing related technologies, the inventors believe that there are often the following defects: the existing measuring ruler has a larger overall structure, which increases the space occupied by the measuring ruler, making it inconvenient for workers to carry the measuring ruler with them, making it more difficult to use the measuring ruler, and greatly reducing the practicality of the measuring ruler. Utility Model Content

[0005] The technical problem to be solved by the utility model is that: the existing technology has the disadvantage that the measuring ruler cannot be folded, so we propose a foldable drawing measuring ruler.

[0006] The utility model solves the technical problem by adopting a technical solution as follows: comprising a measuring ruler body, a scale line is fixedly connected to the front end of the measuring ruler body, a storage groove is provided on the left side of the measuring ruler body, a second measuring ruler is slidably connected to the inner wall of the storage groove, and a folding structure is fixedly arranged at the right end of the measuring ruler body for easy carrying;

[0007] The folding structure includes a first extension plate, a rotating rod and a second extension plate. The first extension plates are two in number and are fixedly connected to the right end of the measuring ruler body. The surface of the rotating rod is rotatably connected to the second extension plate. A circular hole is provided on the top of the second extension plate. A correction plate is fixedly connected to the bottom of the measuring ruler body, and a bolt is connected to the internal thread of the correction plate.

[0008] Preferably, a pull ring is fixedly connected to the left side of the second ruler, a first slide groove is opened inside the second ruler, a slider is fixedly connected to the inner wall of the storage groove, and the surface of the slider is slidably connected to the inner wall of the first slide groove.

[0009] Preferably, a circular groove is provided at the bottom of the second measuring ruler, a first spring is fixedly connected to the top of the inner wall of the circular groove, a limiting column is fixedly connected to the bottom end of the first spring, and limiting holes are provided on both sides of the bottom of the measuring ruler body.

[0010] Preferably, a T-shaped block is fixedly connected to the top of the inner wall of the circular groove, second slide grooves are provided on both sides of the inner diameter of the limiting column, and the bottom of the T-shaped block is slidably connected to the inner diameter of the second slide groove.

[0011] Preferably, a mounting groove is opened on the right side of the inner wall of the storage groove, a second spring is fixedly connected to the right side of the inner wall of the mounting groove, and the left end of the second spring is fixedly connected to the right side of the second ruler.

[0012] Preferably, a plurality of magnets are fixedly connected to the rear end of the measuring ruler body, and the cross section of the magnets is a circular structure and the surface is a flat angle design.

[0013] Technical effects and advantages of the utility model:

[0014] In the utility model, the second extension plate is rotatably connected with the rotating rod, so that the staff can rotate the measuring ruler body to the right to a specified position so that the correction plate abuts against the second extension plate, and then screw the bolt inward into the round hole, so that the measuring ruler body can be horizontally unfolded, and the second measuring ruler is pulled out from the inner wall of the storage groove to increase the length of the measuring ruler, so as to achieve a foldable design of the measuring ruler body, reduce the space occupied by the measuring ruler body, and make it more convenient for the staff to carry the measuring ruler body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 For the utility model Figure 2 A partial enlarged view of the middle A;

[0018] Figure 4 For the utility model Figure 2 A partial enlarged view of point B in the middle;

[0019] Figure 5 It is a schematic diagram of the back of the utility model.

[0020] Legend: 1. Measuring ruler body; 2. Scale lines; 3. Storage slot; 4. Second measuring ruler; 5. Folding mechanism; 501. First extension plate; 502. Turn bar; 503. Second extension plate; 504. Round hole; 505. Correction plate; 506. Bolt; 6. Pull ring; 7. First slide groove; 8. Slider; 9. Round groove; 10. First spring; 11. Limit column; 12. Limit hole; 13. T-shaped block; 14. Second slide groove; 15. Mounting slot; 16. Second spring; 17. Magnet. DETAILED DESCRIPTION

[0021] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] Reference Figure 1 , Figure 2 and Figure 3 As shown, the utility model provides a technical solution: a foldable drawing measuring ruler, comprising a measuring ruler body 1, the measuring ruler body 1 is provided with a pull rod, a scale line 2 is fixedly connected to the front end of the measuring ruler body 1, a storage slot 3 is provided on the left side of the measuring ruler body 1, a second measuring ruler 4 is slidably connected to the inner wall of the storage slot 3, and a folding structure 5 for easy carrying is fixedly provided on the right end of the measuring ruler body 1;

[0023] The folding structure 5 includes a first extension plate 501, a rotating rod 502 and a second extension plate 503. There are two first extension plates 501, which are fixedly connected to the right end of the measuring ruler body 1. The surface of the rotating rod 502 is rotatably connected to the second extension plate 503. A circular hole 504 is provided on the top of the second extension plate 503. A correction plate 505 is fixedly connected to the bottom of the measuring ruler body 1, and a bolt 506 is connected to the internal thread of the correction plate 505.

[0024] Let’s talk about the specific settings and functions of the folding structure.

[0025] Reference Figure 1 - Figure 5As shown, in this embodiment: through the rotation connection between the second extension plate 503 and the rotating rod 502, the staff can rotate the measuring ruler body 1 to the right to the specified position so that the correction plate 505 abuts against the second extension plate 503, and then screw the bolt 506 inward into the round hole 504, so that the measuring ruler body 1 can be horizontally unfolded, and the second ruler 4 is pulled out from the inner wall of the storage groove 3 to increase the length of the measuring ruler, so as to achieve a foldable design of the measuring ruler body 1, reduce the space occupied by the measuring ruler body 1, and make it more convenient for the staff to carry the measuring ruler body 1. The left side of the second ruler 4 is fixedly connected with a pull ring 6, the interior of the second ruler 4 is provided with a first slide groove 7, and the inner wall of the storage groove 3 is fixedly connected with a slider 8. The surface of the block 8 is slidably connected to the inner wall of the first slide groove 7. When the staff pulls the second ruler 4 outward, the sliding connection between the first slide groove 7 and the slider 8 prevents the staff from pulling the second ruler 4 out of the inner wall of the storage groove 3, thereby limiting the movement trajectory of the second ruler 4. A circular groove 9 is provided at the bottom of the second ruler 4, and a first spring 10 is fixedly connected to the top of the inner wall of the circular groove 9. The bottom end of the first spring 10 is fixedly connected to a limiting column 11. Limiting holes 12 are provided on both sides of the bottom of the measuring ruler body 1. When the staff pulls the second ruler 4 to the specified position, the elastic force generated downward by the first spring 10 pushes the limiting column 11 downward to insert into the inner wall of the limiting hole 12, thereby limiting the second ruler 4. The position is fixed, a T-shaped block 13 is fixedly connected to the top of the inner wall of the circular groove 9, and second slide grooves 14 are provided on both sides of the inner diameter of the limiting column 11, and the bottom of the T-shaped block 13 is slidably connected to the inner diameter of the second slide groove 14. When the elastic force generated by the first spring 10 pushes the limiting column 11 to move, the moving trajectory of the limiting column 11 is restricted by the sliding connection between the T-shaped block 13 and the second slide groove 14 to prevent the limiting column 11 from sliding out of the inner wall of the circular groove 9. An installation groove 15 is provided on the right side of the inner wall of the storage groove 3, and a second spring 16 is fixedly connected to the right side of the inner wall of the installation groove 15. The left end of the second spring 16 is fixedly connected to the right side of the second ruler 4. When the staff pulls the second ruler 4 to the left from the inner wall of the storage groove 3 When sliding out, the second ruler 4 moves to the left and drives the installation slot 15 to extend to accumulate force. When the staff releases the fixation of the second ruler 4, the force released by the installation slot 15 pulls the second ruler 4 to the right and slides into the inner wall of the storage slot 3, so that the staff can retract the second ruler 4 into the inner wall of the storage slot 3. The rear end of the measuring ruler body 1 is fixedly connected with a plurality of magnets 17. The cross-section of the magnet 17 is a circular structure and the surface is a flat angle design. When the staff draws on an iron panel such as a blackboard, the plurality of magnets 17 arranged at the rear end of the measuring ruler body 1 can make the magnet 17 magnetically absorb the measuring ruler body 1 on the blackboard, so that it is more convenient for the staff to use this measuring ruler to draw on the blackboard.

[0026] The practical working principle of the present invention is that the second extension plate 503 is connected with the rotating rod 502 in rotation, so that the staff can rotate the measuring ruler body 1 to the right to the specified position so that the correction plate 505 abuts against the second extension plate 503, and then screw the bolt 506 inwardly into the round hole 504, so that the measuring ruler body 1 can be horizontally unfolded, and the second ruler 4 is pulled out from the inner wall of the storage groove 3 to increase the length of the measuring ruler, so as to achieve a foldable design of the measuring ruler body 1, reduce the space occupied by the measuring ruler body 1, and make it more convenient for the staff to carry the measuring ruler body 1 with them. When the staff pulls the second ruler 4 outward, it is connected with the sliding of the slider 8 through the first sliding groove 7 to prevent the staff from pulling the second ruler 4 out from the inner wall of the storage groove 3, thereby limiting the movement trajectory of the second ruler 4. When the staff pulls the second ruler 4 to the specified position, the elastic force generated downward by the first spring 10 pushes the limit column 11 downward to insert into the inner wall of the limit hole 12 When the staff member pulls the second ruler 4 to the left and slides out from the inner wall of the storage groove 3, the second ruler 4 moves to the left and drives the installation groove 15 to extend to store force. When the staff member releases the fixation of the second ruler 4, the installation groove 15 releases the force generated to pull the second ruler 4 to the right and slide into the inner wall of the storage groove 3, so that it is convenient for the staff member to retract the second ruler 4 into the inner wall of the storage groove 3. When the staff member draws on an iron panel such as a blackboard, a plurality of magnets 17 are arranged at the rear end of the measuring ruler body 1, so that the magnet 17 can magnetically absorb the measuring ruler body 1 on the blackboard, so that it is more convenient for the staff member to use the measuring ruler to draw on the blackboard.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foldable drawing measuring ruler, comprising a measuring ruler body (1), characterized in that: The measuring ruler body (1) is provided with a pull rod, a scale line (2) is fixedly connected to the front end of the measuring ruler body (1), a storage groove (3) is provided on the left side of the measuring ruler body (1), a second measuring ruler (4) is slidably connected to the inner wall of the storage groove (3), and a folding structure (5) for easy carrying is fixedly provided at the right end of the measuring ruler body (1); The folding structure (5) comprises a first extension plate (501), a rotating rod (502) and a second extension plate (503); the first extension plates (501) are two in number and are fixedly connected to the right end of the measuring ruler body (1); the surface of the rotating rod (502) is rotatably connected to the second extension plate (503); a round hole (504) is provided on the top of the second extension plate (503); a correction plate (505) is fixedly connected to the bottom of the measuring ruler body (1); a bolt (506) is threadedly connected to the inside of the correction plate (505).

2. The foldable drawing measuring ruler according to claim 1, characterized in that: A pull ring (6) is fixedly connected to the left side of the second measuring ruler (4), a first sliding groove (7) is provided inside the second measuring ruler (4), a sliding block (8) is fixedly connected to the inner wall of the storage groove (3), and the surface of the sliding block (8) is slidably connected to the inner wall of the first sliding groove (7).

3. The foldable drawing measuring ruler according to claim 1, characterized in that: A circular groove (9) is provided at the bottom of the second measuring ruler (4), a first spring (10) is fixedly connected to the top of the inner wall of the circular groove (9), a limiting column (11) is fixedly connected to the bottom end of the first spring (10), and limiting holes (12) are provided on both sides of the bottom of the measuring ruler body (1).

4. The foldable drawing measuring ruler according to claim 3, characterized in that: A T-shaped block (13) is fixedly connected to the top of the inner wall of the circular groove (9), and second slide grooves (14) are provided on both sides of the inner diameter of the limiting column (11), and the bottom of the T-shaped block (13) is slidably connected to the inner diameter of the second slide groove (14).

5. The foldable drawing measuring ruler according to claim 1, characterized in that: A mounting groove (15) is provided on the right side of the inner wall of the storage groove (3), a second spring (16) is fixedly connected to the right side of the inner wall of the mounting groove (15), and the left end of the second spring (16) is fixedly connected to the right side of the second measuring ruler (4).

6. The foldable drawing measuring ruler according to claim 1, characterized in that: A plurality of magnets (17) are fixedly connected to the rear end of the measuring ruler body (1); the cross section of the magnets (17) is a circular structure and the surface is a flat angle design.

Images