Scriber capable of adjusting spacing

Abstract

The utility model discloses a distance-adjustable scriber, which is applied to the technical field of education tools, and is characterized in that the distance-adjustable scriber comprises a frame and a scribing mechanism, guide grooves are formed in the outer walls of the left side and the right side of the frame, a fixing mechanism is arranged on the outer wall of the frame, the frame is connected with a sliding plate in a sliding manner through the guide grooves, and the sliding plate is connected with the scribing mechanism. The dotted line drawing device has the technical effects that if dotted lines are drawn, the supporting rod is put down through the pull rod, the sliding plate moves to drive the wheel to rotate, so that the wheel drives the third rotating rod to rotate and drives the cam to rotate, the cam rotates to jack up the push rod to push the clamping assembly upwards, and at the moment, the push rod compresses the third spring; if a straight line is drawn, a user only needs to pull up the pull rod to drive the supporting rod, the pull rod stands, and then the straight line can be drawn.

Description

Technical Field

[0001] The utility model relates to the technical field of educational tools, in particular to a line marker with adjustable spacing. Background Technique

[0002] In current Chinese teaching, in order to enable students to write square characters well, they need to write in a Tian character grid first and then in a square grid to gradually form the writing habit of Chinese characters. Currently, in teachers' teaching, in order to give demonstrations to students, teachers need to draw a Tian character grid or a square grid on the blackboard first and then write in it.

[0003] Currently, the existing Chinese utility model patent with the publication number CN216832970U discloses a square grid line marker for Chinese teaching, belonging to the technical field of educational tools. It includes a line marker. Along the length direction of the line marker, a plurality of partition bars are arranged on the upper surface of the line marker, and along the width direction of the line marker, a sliding rod is arranged on the upper surface of the line marker. A fixer is slidably connected to the sliding rod. Scale values are etched on the upper surface of the line marker and the upper surface of the partition bars. The main body of the line marker is formed by a frame structure. A plurality of partition bars are slidably connected to the frame structure. The function of the partition bars is the same as that of a ruler. It can not only limit the length of the drawn line segment but also restrict the position where the chalk passes during line drawing, ensuring that the drawn line is straight. At the same time, by displacing the partition bars, the spacing between line segments can also be controlled, thereby controlling the size of the later square grid. After the partition bars are adjusted, the fastening screws at both ends are tightened to prevent position deviation when touched. However, in fact, the Tian character grid in Chinese teaching is in a dotted line format. This utility model cannot draw dotted lines during use, and each time the grid size needs to be adjusted, nuts need to be adjusted, which is cumbersome, takes a long time, and has low efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a line marker with adjustable spacing to solve the problems raised in the above background technique, that is, the Tian character grid in actual Chinese teaching is in a dotted line format, this utility model cannot draw dotted lines during use, and each time the grid size needs to be adjusted, nuts need to be adjusted, which is cumbersome, takes a long time, and has low efficiency.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A line marker with adjustable spacing, including a frame and a line marking mechanism. Guide grooves are opened on the outer walls of the left and right sides of the frame, and a fixing mechanism is arranged on the outer wall of the frame. The frame is slidably connected with a sliding plate through the guide grooves, and the sliding plate is slidably connected through the guide grooves. A chute is opened on the outer wall of the top of the sliding plate;

[0006] The scribing mechanism includes a limit plate. A sliding hole is provided at the center of the front surface of the limit plate. The sliding plate is slidably connected to the limit plate through a sliding groove. A support rod and a clamping assembly are provided below the front surface of the limit plate. The top of the support rod is rotatably connected to a pull rod through a pin. The outer wall of the support rod is fixedly connected with a limit block and a cross plate respectively. A second spring is sleeved on the outer wall of the support rod between the limit block and the limit plate. The bottom of the support rod is rotatably connected to a third rotating rod. Wheels are fixedly connected to the outer walls at both ends of the third rotating rod. A cam is fixedly connected to the outer wall of the third rotating rod. A push rod is provided above the cam. A third spring is sleeved on the outer wall of the push rod between the clamping assembly and the cross plate. A fourth spring is fixedly connected to the top of the bottom end of the clamping assembly.

[0007] The present utility model is further configured as: The fixing mechanism includes a buckling device, a limit rod and a second rotating rod. A scribing plate is slidably connected to the outer wall of the frame. The top of the buckling device is rotatably connected to a first rotating rod. A through groove is provided on the inner cavity wall at the bottom of the buckling device. The buckling device is rotatably connected to the limit rod through the through groove and the second rotating rod. A first spring is sleeved on the outer wall of the limit rod.

[0008] By adopting the above technical solutions, the fixing and adjustment of the scribing plate can be realized, the scribing accuracy and operation convenience can be improved, and the stability during the scribing process can be ensured.

[0009] The present utility model is further configured as: A fifth spring and a cylinder are fixedly connected to the bottom of the inner cavity wall of the limit plate respectively. A spherical ball is provided at the top end of the fifth spring, and the fifth spring is arranged on the inner wall of the cylinder.

[0010] By adopting the above technical solutions, the limit plate can be fixed when it is elastically stressed after adjusting the position.

[0011] The present utility model is further configured as: The radius of the fifth spring is smaller than the radius of the spherical ball, and the radius of the cylinder is larger than the radius of the fifth spring and smaller than the radius of the spherical ball.

[0012] By adopting the above technical solutions, it can be ensured that during the sliding process of the spherical ball on the inner wall of the cylinder, the fifth spring can provide appropriate elastic force, so as to realize the precise adjustment of the position of the limit plate.

[0013] The present utility model is further configured as: Limit grooves are provided on the outer walls on the front and rear sides of the frame.

[0014] By adopting the above technical solutions, the movement of the scribing plate is facilitated.

[0015] The present utility model is further configured as: Limit holes are equidistantly provided on the inner wall of the limit groove.

[0016] By adopting the above technical solutions, the scribing plate can be fixed when it moves to a suitable position, further ensuring the stability of the sliding plate during the sliding process and preventing the sliding plate from shifting during the scribing process.

[0017] The present utility model is further configured such that a strip-shaped groove is formed in the outer wall of the bottom of the skateboard.

[0018] By adopting the above technical solution, the strip-shaped groove formed in the outer wall of the bottom of the skateboard can cooperate with the limiting hole to quickly lock the position of the skateboard and facilitate the adjustment of the distance between the marking devices.

[0019] The present utility model provides a marking device with adjustable distance, having the following beneficial effects:

[0020] (1) When drawing a dotted line with the present utility model, the support rod is lowered through the pull rod. When the skateboard moves, the wheels rotate, and thus the wheels drive the third rotating rod to rotate and drive the cam to rotate. The cam rotates to push up the push rod to push the clamping assembly upward. At this time, the push rod compresses the third spring, thereby driving the clamping assembly to compress the fourth spring. After the pushing is completed, the clamping assembly is reset by the elastic forces of the fourth spring and the third spring. This process is repeated until the marking is completed. When drawing a straight line, only need to pull up the pull rod to drive the support rod and make the pull rod stand upright to draw a straight line.

[0021] (2) By rotating the buckling device to drive the first rotating rod to rotate, the bottom of the buckling device drives the second grasping rod to slide in the through groove, thereby driving the limiting rod to move. When the marking plate moves to a suitable position through the limiting groove, the limiting rod will be reset by the elastic force of the first spring and be inserted into the limiting hole to achieve fixation, reducing the adjustment time and increasing the efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0023] Figure 2 is a three-dimensional structural schematic diagram of the fixing mechanism of the present utility model;

[0024] Figure 3 is a bottom view of the fixing mechanism of the present utility model;

[0025] Figure 4 is a three-dimensional structural schematic diagram of the marking mechanism of the present utility model;

[0026] Figure 5 is a front view of the marking structure of the present utility model;

[0027] Figure 6 is a sectional view of the marking structure of the present utility model;

[0028] Figure 7 is a three-dimensional structural schematic diagram of the skateboard of the present utility model;

[0029] Figure 8 is the present utility model Figure 7 enlarged view of part A.

[0030] In the figure: 1. Skateboard; 2. Fixing mechanism; 21. Marking board; 22. Deductor; 23. First rotating rod; 24. Limiting groove; 25. Limiting hole; 26. Limiting rod; 27. First spring; 28. Second rotating rod; 3. Frame; 4. Marking mechanism; 41. Limiting plate; 42. Pull rod; 43. Support rod; 44. Limiting block; 45. Second spring; 46. Clamping assembly; 47. Horizontal plate; 48. Wheel; 49. Push rod; 410. Third spring; 411. Third rotating rod; 412. Fourth spring; 413. Fifth spring; 414. Sphere; 415. Cylinder; 416. Cam; 5. Chute; 6. Strip-shaped groove; 7. Guide groove. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] As Figures 1-8 shown, the present invention provides a technical solution: a line marker with adjustable spacing, including a frame 3 and a marking mechanism 4. Guide grooves 7 are provided on the outer walls of the left and right sides of the frame 3, and a fixing mechanism 2 is provided on the outer wall of the frame 3. Limiting grooves 24 are provided on the outer walls of the front and rear sides of the frame 3 to facilitate the movement of the marking board 21. The frame 3 is slidably connected with a skateboard 1 through the guide groove 7, and the skateboard 1 is slidably connected through the guide groove 7. A chute 5 is provided on the top outer wall of the skateboard 1, and a strip-shaped groove 6 is provided on the bottom outer wall of the skateboard 1. The strip-shaped groove 6 provided on the bottom outer wall of the skateboard 1 can be matched with the limiting hole 25 to quickly lock the position of the skateboard 1 and facilitate the adjustment of the spacing of the line marker;

[0033] The scribing mechanism 4 includes a limit plate 41. At the bottom of the inner cavity wall of the limit plate 41, a fifth spring 413 and a cylinder 415 are fixedly connected respectively. At the top of the fifth spring 413, there is a spherical ball 414, and the fifth spring 413 is arranged inside the inner wall of the cylinder 415. This can enable the limit plate 41 to be fixed when it is subjected to elastic force after adjusting its position. The radius of the fifth spring 413 is smaller than the radius of the spherical ball 414, and the radius of the cylinder 415 is larger than the radius of the fifth spring 413 and smaller than the radius of the spherical ball 414. This can ensure that during the sliding process of the spherical ball 414 on the inner wall of the cylinder 415, the fifth spring 413 can provide appropriate elastic force, thereby realizing the precise adjustment of the position of the limit plate 41. A sliding hole is opened at the center of the front surface of the limit plate 41. The sliding plate 1 is slidably connected to the limit plate 41 through a chute 5. Below the front surface of the limit plate 41, there are a support rod 43 and a clamping assembly 46. The top of the support rod 43 is rotationally connected to a pull rod 42 through a pin. On the outer wall of the support rod 43, a limit block 44 and a cross plate 47 are fixedly connected respectively. A second spring 45 is sleeved on the outer wall of the support rod 43 between the limit block 44 and the limit plate 41. The bottom of the support rod 43 is rotationally connected to a third rotating rod 411. On the outer walls of both ends of the third rotating rod 411, wheels 48 are fixedly connected. On the outer wall of the third rotating rod 411, a cam 416 is fixedly connected. Above the cam 416, there is a push rod 49. A third spring 410 is sleeved on the outer wall of the push rod 49 between the clamping assembly 46 and the cross plate 47. At the top and bottom of the clamping assembly 46, a fourth spring 412 is fixedly connected;

[0034] The fixing mechanism 2 includes a buckling device 22, a limit rod 26 and a second rotating rod 28. A scribing plate 21 is slidably connected to the outer wall of the frame 3. The top of the buckling device 22 is rotationally connected to a first rotating rod 23. A through groove is opened at the bottom inner cavity wall of the buckling device 22. The buckling device 22 is rotationally connected to the limit rod 26 through the through groove and the second rotating rod 28. A first spring 27 is sleeved on the outer wall of the limit rod 26. This can realize the fixing and adjustment of the scribing plate 21, improve the scribing accuracy and operation convenience, ensure the stability during the scribing process. Equally spaced limit holes 25 are opened in the inner wall of the limit groove 24. This can fix the scribing plate 21 when it moves to a suitable position, further ensure the stability of the sliding plate 1 during the sliding process, and prevent the sliding plate 1 from shifting during the scribing process.

[0035] Working principle: If a dotted line is to be drawn, the support rod 43 is lowered through the pull rod 42. When moving through the slide plate 1, the wheel 48 is driven to rotate. Thus, the wheel 48 drives the rotating rod 411 to rotate and drives the cam 416 to rotate. By the rotation of the cam 416, the push rod 49 is lifted to push the clamping assembly 46 upward. At this time, the push rod 49 compresses the spring 410, thereby driving the clamping assembly 46 to compress the spring 412. After the pushing is completed, it is reset by the elastic force of the spring 412 and the spring 410. This reciprocates until the line drawing is completed. If a straight line is to be drawn, only need to pull up the pull rod 42 to drive the support rod 43 and make the pull rod 42 stand upright to draw a straight line. With the establishment of the fixing mechanism 2, by rotating the buckling device 22, the rotating rod 23 is driven to rotate. The bottom of the buckling device 22 drives the second grasping rod to slide in the through groove, thereby driving the limiting rod 26 to move. The marking plate 21 moves to a suitable position through the limiting groove 24, and the limiting rod 26 will be reset by the elastic force of the spring 27 and is inserted into the limiting hole 25, realizing convenient fixation, reducing the adjustment time and increasing the efficiency.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable-spacing line marker, comprising a frame (3) and a line marking mechanism (4), characterized in that: The outer walls on the left and right sides of the frame (3) are provided with guide grooves (7), and a fixing mechanism (2) is arranged on the outer wall of the frame (3). The frame (3) is slidably connected with a sliding plate (1) through the guide grooves (7). The sliding plate (1) is slidably connected through the guide grooves (7), and a chute (5) is opened on the outer wall of the top of the sliding plate (1). The scribing mechanism (4) includes a limiting plate (41). A sliding hole is opened at the center of the front surface of the limiting plate (41). The sliding plate (1) is slidably connected with the limiting plate (41) through the chute (5). A support rod (43) and a clamping assembly (46) are arranged below the front surface of the limiting plate (41). The top of the support rod (43) is rotatably connected with a pull rod (42) through a pin. Limiting blocks (44) and cross plates (47) are fixedly connected to the outer wall of the support rod (43) respectively. A second spring (45) is sleeved on the outer wall of the support rod (43) between the limiting block (44) and the limiting plate (41). The bottom of the support rod (43) is rotatably connected with a third rotating rod (411). Wheels (48) are fixedly connected to the outer walls at both ends of the third rotating rod (411). A cam (416) is fixedly connected to the outer wall of the third rotating rod (411). A push rod (49) is arranged above the cam (416). A third spring (410) is sleeved on the outer wall of the push rod (49) between the clamping assembly (46) and the cross plate (47). A fourth spring (412) is fixedly connected to the top of the bottom end of the clamping assembly (46).

2. The scribing tool with adjustable spacing according to claim 1, characterized in that: The fixing mechanism (2) includes a buckling device (22), a limiting rod (26) and a second rotating rod (28). A scribing plate (21) is slidably connected to the outer wall of the frame (3). The top of the buckling device (22) is rotatably connected with a first rotating rod (23). A through groove is opened on the inner cavity wall of the bottom of the buckling device (22). The buckling device (22) is rotatably connected with the limiting rod (26) through the through groove and the second rotating rod (28). A first spring (27) is sleeved on the outer wall of the limiting rod (26).

3. The scribing tool with adjustable spacing according to claim 1, wherein: A fifth spring (413) and a cylinder (415) are fixedly connected to the bottom of the inner cavity wall of the limiting plate (41) respectively. A spherical ball (414) is arranged at the top end of the fifth spring (413), and the fifth spring (413) is arranged inside the inner wall of the cylinder (415).

4. The scribing tool with adjustable spacing according to claim 3, characterized in that: The radius of the fifth spring (413) is smaller than the radius of the spherical ball (414). The radius of the cylinder (415) is larger than the radius of the fifth spring (413) and smaller than the radius of the spherical ball (414).

5. The scribing tool with adjustable spacing according to claim 1, characterized in that: Limiting grooves (24) are opened on the outer walls of the front and back sides of the frame (3).

6. The scribing tool with adjustable spacing according to claim 5, wherein: Limiting holes (25) are equidistantly opened on the inner wall of the limiting groove (24).

7. The scribing tool with adjustable spacing according to claim 1, characterized in that: A strip-shaped groove (6) is opened on the outer wall of the bottom of the sliding plate (1).

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