A scribing tool

Abstract

The utility model discloses a ruling tool, including horizontal pole, main wheel and auxiliary spare, the first through -hole is seted up in the center of horizontal pole, the both ends of horizontal pole all are seted up with second through -hole, and auxiliary spare includes support, auxiliary wheel and nut, and the one end of support is equipped with screw rod, and screw rod penetrates second through -hole and is connected with nut thread, through the setting of horizontal pole and main wheel, constitute the ruling structure of ruling center line, and through the setting of auxiliary spare again, make the device to different width's square material, and main wheel and auxiliary wheel can all butt against the side of square material, and under the action of nut fastening auxiliary wheel position, make horizontal pole move to the both ends of square material, although the one end of horizontal pole is in the air, also do not affect the inclination state of horizontal pole, and staff can continue to move horizontal pole, complete the ruling of square material both ends, need not utilize ruler square material both ends ruling again, improved work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of materials processing technology, specifically to a scribing tool. Background Technology

[0002] During construction, it is often necessary to process square materials (including steel plates and wooden boards) on-site by cutting and drilling. To improve on-site processing efficiency, specialized processing tools are usually used. For example, the invention patent application CN119282410A, entitled "A Fixture and Method for Quickly Marking Center Lines of Square Materials," includes a main structure, a marking cone, a laser emitting device, bearings, and a center target. A marking cone is fixed in the middle of the columnar main structure, running vertically through it. The marking cone is located on the center line of the columnar main structure. Two bearings are symmetrically arranged on the bottom center line of the main structure, and are also symmetrically arranged relative to the marking cone. A laser emitting device is coaxially mounted on the top of the marking cone and is rotatably mounted on it. The center target is located at the center of the end of the square material. The laser beam emitted by the laser emitting device is aligned with the center target point of the center target, enabling the fixture to quickly and accurately find the center line of the square material, facilitating subsequent processing.

[0003] However, when the columnar body moves in an inclined state relative to the square material, the two bearings move synchronously in a front-and-back manner. When the columnar body moves to both ends of the square material, one of the bearings will be the first to detach from the square material. At this time, since only one bearing is in contact with the square material, the columnar body will lose its original inclined state due to the slippage of the bearing. As a result, the center lines at both ends of the square material cannot be completed in one go. It is necessary to use a ruler to align with the already drawn center line and then fill in the gaps, which leads to low construction efficiency. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a marking tool to solve the technical problem that the tooling for marking center lines in the prior art cannot mark both ends of the square material at once, thus reducing the efficiency of subsequent construction.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a marking tool, including a horizontal bar, main wheels, and auxiliary components. The horizontal bar has a first through hole in its center and second through holes at both ends. The main wheels are arranged in pairs and are rotatably connected to the two ends of the horizontal bar. The auxiliary components are arranged in pairs and correspond one-to-one with the two main wheels. Each auxiliary component includes a support rod, a secondary wheel, and a nut. One end of the support rod is provided with a screw, which rotatably passes through the second through hole and is threadedly connected to the nut. The secondary wheel is rotatably connected to the other end of the support rod.

[0007] In some embodiments, mounting grooves are provided at both ends of the crossbar, the end of the support rod is rotatably embedded in the mounting groove, and the screw passes through the second through hole from bottom to top and is threadedly connected to the nut.

[0008] In some embodiments, the secondary wheel and the primary wheel are coplanar.

[0009] In some embodiments, the nut is fixedly connected to a first handle.

[0010] In some embodiments, the thickness of the horizontal bar is less than 2 mm.

[0011] In some embodiments, the bottom of the crossbar is provided with a swivel ball, the fixed end of the swivel ball is fixedly embedded in the bottom of the crossbar, and the movable end of the swivel ball protrudes from the bottom surface of the crossbar.

[0012] In some embodiments, the omnidirectional balls are arranged in pairs, with the two omnidirectional balls located on opposite sides of the first through hole.

[0013] In some embodiments, the length of the movable end of the omnidirectional ball protruding from the bottom surface of the crossbar is 1 mm.

[0014] In some embodiments, the top surfaces of both the main wheel and the secondary wheel are lower than the bottom of the movable end of the omnidirectional ball.

[0015] In some embodiments, a second handle is provided at the top of the crossbar.

[0016] Compared with existing technologies, the marking tool provided by this utility model, through the setting of a crossbar and a main wheel, forms a marking structure for marking center lines. Then, through the support rod rotating around the screw, the main wheel and the auxiliary wheel can be used for square materials of different widths. With the nut securing the position of the auxiliary wheel, when the crossbar moves to both ends of the square material, even if one end of the crossbar is suspended in the air, it does not affect the tilt state of the crossbar. The worker can continue to move the crossbar to complete the marking at both ends of the square material, eliminating the need to use a ruler to supplement the marking at both ends of the square material, thus improving work efficiency. Attached Figure Description

[0017] Figure 1 This is a line-drawing tool provided in this embodiment of the utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure of the crossbar and the main wheel;

[0019] Figure 3 This is a schematic diagram of the structure of an auxiliary component in a marking tool provided in this embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of a drawing tool provided in an embodiment of the present utility model.

[0021] Explanation of reference numerals in the attached diagram: 1. Horizontal bar; 11. First through hole; 12. Second through hole; 13. Mounting groove; 14. Universal ball; 15. Second handle; 2. Main wheel; 3. Auxiliary component; 31. Support rod; 32. Secondary wheel; 33. Nut; 331. First handle; 34. Screw. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0023] To address the technical problem that the tooling for marking center lines cannot mark both ends of a square material in one go, thus reducing subsequent construction efficiency, this utility model provides a marking tool that can mark both ends of a square material in one go, thereby improving subsequent construction efficiency.

[0024] It should be noted that the scribing tool described in this utility model is used for, but not limited to, square materials. For ease of explanation, this utility model only uses the application of a scribing tool to square materials as an example. The principle of applying a scribing tool to other types of equipment is essentially the same as that applied to square materials, and will not be described in detail here.

[0025] Please see Figures 1-4 ,in Figure 1 This is a schematic diagram of the structure of a marking tool according to an embodiment of the present invention. The marking tool includes a crossbar 1, a main wheel 2, and an auxiliary component 3. A first through hole 11 is provided in the center of the crossbar 1, and a second through hole 12 is provided at both ends of the crossbar 1. The main wheels 2 are arranged in pairs and are rotatably connected to the two ends of the crossbar 1 respectively. The auxiliary component 3 is arranged in pairs and corresponds one-to-one with the two main wheels 2. The auxiliary component 3 includes a support rod 31, a secondary wheel 32, and a nut 33. A screw 34 is provided at one end of the support rod 31. The screw 34 rotatably passes through the second through hole 12 and is threadedly connected to the nut 33. The secondary wheel 32 is rotatably connected to the other end of the support rod 31.

[0026] In this embodiment, the crossbar 1 and the main wheel 2 form a marking structure for marking the center line. The support rod 31 rotates around the screw 34, making the main wheel 2 and the auxiliary wheel 32 suitable for square materials of different widths. When the auxiliary wheel 32 is secured by the nut 33, even if one end of the crossbar 1 is suspended in the air when it moves to both ends of the square material, it does not affect the tilt state of the crossbar 1. The worker can continue to move the crossbar 1 to complete the marking at both ends of the square material without having to use a ruler to supplement the marking at both ends of the square material, thus improving work efficiency.

[0027] In one embodiment, please refer to Figure 2 The crossbar 1 has mounting grooves 13 at both ends. The end of the support rod 31 is rotatably embedded in the mounting groove 13, and the screw 34 passes through the second through hole 12 from bottom to top and is threadedly connected to the nut 33.

[0028] In this embodiment, the mounting groove 13 facilitates the overlapping installation of the support rod 31 and the crossbar 1 without affecting the rotational connection between the main wheel 2 and the crossbar 1. The screw 34 and the nut 33 control the pressure between the support rod 31 and the crossbar 1, allowing the operator to fix the support rod 31 and the crossbar 1 relative to each other by twisting the nut 33, thereby determining the tilt state of the crossbar 1 and preventing the support rod 31 from continuing to rotate.

[0029] In one embodiment, please refer to Figure 1 and Figure 4 The auxiliary wheel 32 and the main wheel 2 are on the same plane.

[0030] In this embodiment, the top end of the main wheel 2 is coplanar with the top end of the secondary wheel 32, and the bottom end of the main wheel 2 is coplanar with the bottom end of the secondary wheel 32, so that the main wheel 2 and the secondary wheel 32 can jointly contact the side of the square material.

[0031] In one embodiment, please refer to Figure 3 The nut 33 is fixedly connected to the first handle 331.

[0032] In this embodiment, the function of the first handle 331 is to facilitate the manual tightening of the nut 33 by the staff.

[0033] In one embodiment, please refer to Figure 2 and Figure 4 The thickness of horizontal bar 1 is less than 2mm.

[0034] In this embodiment, the thickness of the horizontal bar 1 is avoided to prevent the drawing pen from becoming unstable during the drawing process.

[0035] In one embodiment, please refer to Figure 2The bottom of the crossbar 1 is provided with a universal ball 14. The fixed end of the universal ball 14 is fixedly embedded in the bottom of the crossbar 1, and the movable end of the universal ball 14 protrudes from the bottom surface of the crossbar 1.

[0036] In this embodiment, the use of the omnidirectional ball 14 reduces the friction between the horizontal bar 1 and the square material during movement, making the horizontal bar 1 move more smoothly.

[0037] In one embodiment, please refer to Figure 2 The omnidirectional balls 14 are arranged in pairs, with the two omnidirectional balls 14 located on both sides of the first through hole 11.

[0038] In this embodiment, with two universal wheels located on both sides of the first through hole 11, when the crossbar 1 moves to either end of the square material, even though the first through hole 11 is detached from the square material, one universal wheel will always be in contact with the square material, and together with the main wheel 2 and the auxiliary wheel 32 that are not detached, the stability of the crossbar 1 in the tilted state is ensured.

[0039] In one embodiment, please refer to Figure 2 The length of the protruding crossbar 1 at the movable end of the omnidirectional ball 14 is 1mm.

[0040] In this embodiment, the length of the movable end of the omnidirectional ball 14 protruding from the bottom surface of the crossbar 1 should not be too long, preferably 1mm, which can effectively avoid the situation where the crossbar 1 is too high relative to the square material, causing the marking pen to be unstable during the marking process.

[0041] In one embodiment, please refer to Figure 2 The top surfaces of both the main wheel 2 and the auxiliary wheel 32 are lower than the bottom of the movable end of the omnidirectional ball 14.

[0042] In this embodiment, since the bottom of the omnidirectional ball 14 will contact the top surface of the square material, there is a certain gap between the bottom surface of the crossbar 1 and the square material. Therefore, in order to ensure that the main wheel 2 and the auxiliary wheel 32 can fully fit against the side of the square material, the top surfaces of the main wheel 2 and the auxiliary wheel 32 are lower than the bottom of the movable end of the omnidirectional ball 14.

[0043] In one embodiment, please refer to Figure 2 A second handle 15 is provided at the top of the horizontal bar 1.

[0044] In this embodiment, the function of the second handle 15 is to facilitate the staff to grip and push or pull the entire device to move.

[0045] To better understand this utility model, the following is combined with... Figures 1 to 4 The technical solution of this utility model is described in detail below:

[0046] First, rotate the nut 33 using the first handle 331 to allow the support rod 31 to rotate freely. Then, place the entire device on the top surface of the square material, so that the universal ball 14 contacts the top surface of the square material. Next, rotate the crossbar 1 so that the two main wheels 2 contact the two sides of the square material respectively. At this time, the crossbar 1 is locked onto the top surface of the square material by the two main wheels 2. Subsequently, rotate the support rod 31 so that the auxiliary wheel 32 also contacts the two sides of the square material, and tighten the nut 33 using the first handle 331 to prevent the support rod 31 from rotating. Finally, the worker... One hand grasps the second handle 15 and pushes and pulls the horizontal bar 1 to move it on the top surface of the square material. The other hand holds a marking pen and inserts the pen tip through the first through hole 11. Under the limiting effect of the first through hole 11, the marking pen draws the center line on the top surface of the square material as the horizontal bar 1 moves. When the horizontal bar 1 moves to the end of the square material, the hand holding the second handle 15, which is not suspended, continues to push the horizontal bar 1 until the first through hole 11 is suspended, thus completing the marking of the center line. The entire marking process is completed in one go, without the need to use a ruler to supplement the marking at both ends of the square material, thus improving work efficiency.

[0047] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A line-drawing tool, characterized in that, include: A horizontal bar, wherein a first through hole is provided in the center of the horizontal bar, and a second through hole is provided at both ends of the horizontal bar; Main wheels, the main wheels being arranged in pairs, with each pair of main wheels rotatably connected to both ends of the crossbar; and The auxiliary components are arranged in pairs and correspond one-to-one with the two main wheels. Each auxiliary component includes a support rod, a secondary wheel, and a nut. One end of the support rod is provided with a screw, which rotates through the second through hole and is threadedly connected to the nut. The secondary wheel is rotatably connected to the other end of the support rod.

2. A line-drawing tool according to claim 1, characterized in that, The crossbar has mounting grooves at both ends, the end of the support rod is rotatably embedded in the mounting groove, and the screw passes through the second through hole from bottom to top and is threadedly connected to the nut.

3. A line-drawing tool according to claim 1, characterized in that, The secondary wheel is coplanar with the primary wheel.

4. A line-drawing tool according to claim 1, characterized in that, The nut is fixedly connected to the first handle.

5. A line-drawing tool according to claim 1, characterized in that, The thickness of the horizontal bar is less than 2mm.

6. A line-drawing tool according to claim 1, characterized in that, The bottom of the crossbar is provided with a swivel ball, the fixed end of which is fixedly embedded in the bottom of the crossbar, and the movable end of which protrudes from the bottom surface of the crossbar.

7. A line-drawing tool according to claim 6, characterized in that, The omnidirectional balls are arranged in pairs, with each pair located on either side of the first through hole.

8. A line-drawing tool according to claim 6, characterized in that, The movable end of the omnidirectional ball protrudes 1mm from the bottom surface of the crossbar.

9. A line-drawing tool according to claim 6, characterized in that, The top surfaces of both the main wheel and the secondary wheel are lower than the bottom of the movable end of the omnidirectional ball.

10. A line-drawing tool according to claim 1, characterized in that, A second handle is provided at the top of the crossbar.

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