Mark scraper with rotating wheel

By using a roller-driven marking device design and combining a connecting rod, a triangular plate, and a torsion spring, the problem of inconvenient operation of existing marking devices during large strokes is solved, resulting in a compact structure and convenient operation.

CN223867080UActive Publication Date: 2026-02-03NINGBO TENGYUE CHANGSHENG MOULDED PROD CO LTD
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Patent Information

Application Number
CN202520886458.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-02-03
Estimated Expiration
2035-05-07

AI Technical Summary

Technical Problem

Existing marking tools are inconvenient to operate due to their long rods when a large stroke is required, resulting in an overall size that is too large and inconvenient to use.

Method used

The design features a rotating wheel and uses a combination of connecting rods, triangular plates, and torsion springs to achieve automatic resetting of the connecting rods and movement of the levers, reducing the travel of the connecting rods. Combined with a detachable bracket design, this facilitates a compact overall structure.

Benefits of technology

It achieves improved ease of operation and structural compactness without increasing the overall size, and facilitates bracket replacement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The scriber comprises a handle, a shell, a support and a connecting rod, the shell is installed on the handle, a second fixing shaft is fixed in the shell, a triangular plate is rotationally connected to the second fixing shaft in a sleeved mode, a torsional spring is connected between the second fixing shaft and the triangular plate, and the connecting rod is connected with the support. One end of the connecting rod is rotationally sleeved with a triangular plate, a shifting rod is fixed to the triangular plate, a first strip-shaped hole is formed in the top of the shell, the shifting rod is located in the first strip-shaped hole, a second strip-shaped hole is formed in the bottom of the shell, and the other end of the connecting rod penetrates through the second strip-shaped hole; two first limiting blocks are fixed in the handle, two second limiting blocks are fixed in the shell, the connecting rod is located between the two first limiting blocks, the connecting rod is located between the two second limiting blocks, and a support is installed at one end of the shell. The stroke of the connecting rod can be reduced, and the whole structure is more compact.
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Description

Technical Field

[0001] This utility model relates to the field of line marking technology, and in particular to a line marking device with a rotating wheel. Background Technology

[0002] The line marking machine mainly consists of a rod, a handle, a cylinder for holding a paint can, replacement feet, and rotating wheels. The operator holds the handle and pushes the line marking machine forward. The paint in the can is used to mark lines on surfaces such as the ground, and it can be used for marking parking spaces, roads, etc.

[0003] Chinese patent CN 200985486 Y discloses a marking device for assisting in marking lines on paint cans. It uses a long rod, so the stroke of its pressing part is the same as that of the long rod. Therefore, when a large stroke is required in the pressing part, the long rod must have a large stroke, which makes the operation more troublesome and requires the whole device to have a larger size. To solve this problem, we propose a marking device with a rotating wheel. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a line marking device with a rotating wheel.

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

[0006] A line marking device with a rotating wheel includes a handle, a housing, a bracket, and a connecting rod. The housing is mounted on the handle, and a second fixed shaft is fixed inside the housing. A triangular plate is rotatably sleeved on the second fixed shaft, and a torsion spring connects the second fixed shaft and the triangular plate. One end of the connecting rod is rotatably sleeved inside the triangular plate, and a lever is fixed on the triangular plate. A first strip-shaped hole is opened at the top of the housing, and the lever is located inside the first strip-shaped hole. A second strip-shaped hole is opened at the bottom of the housing, and the other end of the connecting rod passes through the second strip-shaped hole. Two first limiting blocks are fixed inside the handle, and two second limiting blocks are fixed inside the housing. The connecting rod is located between the two first limiting blocks and between the two second limiting blocks. A bracket is mounted on one end of the housing, and a first fixed shaft is fixed on the bracket. A rotating wheel is rotatably sleeved on the first fixed shaft.

[0007] Preferably, the handle is fixed to the housing via a connecting tube, with both ends of the connecting tube respectively fitted into the handle and the housing.

[0008] Preferably, a cylinder is fixed to the side of the housing, and the lever is located inside the cylinder.

[0009] Preferably, the handle has a limiting block fixed inside for limiting the rotation of the triangular plate.

[0010] Preferably, a rubber sleeve is fixedly fitted onto the end of the connecting rod away from the triangular plate.

[0011] Preferably, a U-shaped insert is fixed on the bracket, and a first locking block is fixed at both ends of the insert. Two second locking blocks are fixed on the inner wall of the housing. The first locking blocks are inserted into the housing and locked and limited by the second locking blocks.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, pulling one end of the connecting rod will cause the connecting rod to move, and the connecting rod will cause the triangular plate to rotate on the second fixed shaft. During the rotation of the second fixed shaft, the lever will move. The triangular plate can be automatically reset by the torsion spring. By rotating the triangular plate to drive the lever to move, the stroke of the connecting rod can be reduced, making the overall structure more compact. When the bracket needs to be replaced, the two insert blocks can be squeezed to separate the first and second locking blocks. At this time, the insert blocks can be pulled out, which is very convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a marking device with a rotating wheel proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of a marking device with a rotating wheel proposed in this utility model;

[0016] Figure 3 for Figure 2 A schematic diagram of the first partial structure;

[0017] Figure 4 for Figure 2 A schematic diagram of the second local structure.

[0018] In the diagram: 1. Handle, 2. Housing, 3. Rubber sleeve, 4. Cylinder, 5. Lever, 6. First fixed shaft, 7. Rotary wheel, 8. Bracket, 9. Linkage, 10. Triangular plate, 11. Insert block, 12. Connecting pipe, 13. Limiting block, 14. Second fixed shaft, 15. Torsion spring, 16. First locking block, 17. Second locking block, 18. First limiting block, 19. Second limiting block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-4A line marking device with a rotating wheel includes a handle 1, a housing 2, a bracket 8, and a connecting rod 9. The housing 2 is mounted on the handle 1. A second fixed shaft 14 is fixed inside the housing 2. A triangular plate 10 is rotatably sleeved on the second fixed shaft 14. A torsion spring 15 connects the second fixed shaft 14 and the triangular plate 10. One end of the connecting rod 9 is rotatably sleeved inside the triangular plate 10. A lever 5 is fixed on the triangular plate 10. Pulling one end of the connecting rod 9 will cause the connecting rod 9 to move, and the connecting rod 9 will cause the triangular plate 10 to rotate on the second fixed shaft 14. During the rotation of the second fixed shaft 14, the lever 5 will move. The triangular plate 10 can be automatically reset by the torsion spring 15. By rotating the triangular plate 10 to move the lever 5, the stroke of the connecting rod 9 can be reduced, making the overall structure more compact. The top of the housing 2 has a first strip hole, and the lever 5 is located in the first strip hole. The bottom of the housing 2 has a second strip hole, and the other end of the connecting rod 9 passes through the second strip hole. Two first limit blocks 18 are fixed inside the handle 1, and two limit blocks 18 are fixed inside the housing 2. A second limiting block 19, a connecting rod 9 located between two first limiting blocks 18, a connecting rod 9 located between two second limiting blocks 19, a bracket 8 installed at one end of the housing 2, a first fixed shaft 6 fixed on the bracket 8, a rotating wheel 7 rotatably sleeved on the first fixed shaft 6, a handle 1 fixed to the housing 2 via a connecting pipe 12, both ends of the connecting pipe 12 respectively sleeved inside the handle 1 and the housing 2, a cylinder 4 fixed to the side of the housing 2, a lever 5 located inside the cylinder 4, and a mechanism for rotating the triangular plate 10 fixed inside the handle 1. The limit block 13 for the travel limit is fixedly fitted with a rubber sleeve 3 at the end of the connecting rod 9 away from the triangular plate 10. A U-shaped insert 11 is fixed on the bracket 8. Both ends of the insert 11 are fixed with first locking blocks 16. Two second locking blocks 17 are fixed on the inner wall of the housing 2. The first locking block 16 is inserted into the housing 2 and locked and limited by the second locking blocks 17. When the bracket 8 needs to be replaced, the two insert blocks 11 are squeezed to separate the first locking block 16 and the second locking block 17. At this time, the insert block 11 can be pulled out. The operation is very convenient.

[0021] Working principle: When in use, pulling one end of the connecting rod 9 will cause the connecting rod 9 to move. The connecting rod 9 will cause the triangular plate 10 to rotate on the second fixed shaft 14. During the rotation of the second fixed shaft 14, the lever 5 will move. The triangular plate 10 can be automatically reset by the torsion spring 15. By rotating the triangular plate 10 to drive the lever 5 to move, the stroke of the connecting rod 9 can be reduced, making the overall structure more compact. When the bracket 8 needs to be replaced, the two insert blocks 11 can be squeezed to separate the first locking block 16 and the second locking block 17. At this time, the insert blocks 11 can be pulled out. The operation is very convenient.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A line marking device with a rotating wheel, comprising a handle (1), a housing (2), a bracket (8), and a connecting rod (9), characterized in that, A housing (2) is mounted on the handle (1). A second fixed shaft (14) is fixed inside the housing (2). A triangular plate (10) is rotatably sleeved on the second fixed shaft (14). A torsion spring (15) is connected between the second fixed shaft (14) and the triangular plate (10). One end of the connecting rod (9) is rotatably sleeved inside the triangular plate (10). A lever (5) is fixed on the triangular plate (10). A first strip hole is opened at the top of the housing (2). The lever (5) is located inside the first strip hole. The bottom of the housing (2) A second strip-shaped hole is provided, and the other end of the connecting rod (9) passes through the second strip-shaped hole. Two first limiting blocks (18) are fixed inside the handle (1), and two second limiting blocks (19) are fixed inside the housing (2). The connecting rod (9) is located between the two first limiting blocks (18) and between the two second limiting blocks (19). A bracket (8) is installed at one end of the housing (2), and a first fixed shaft (6) is fixed on the bracket (8). A rotating wheel (7) is rotatably sleeved on the first fixed shaft (6).

2. A marking device with a rotating wheel according to claim 1, characterized in that, The handle (1) is fixed to the housing (2) by a connecting tube (12), and the two ends of the connecting tube (12) are respectively sleeved in the handle (1) and the housing (2).

3. A marking device with a rotating wheel according to claim 1, characterized in that, A cylinder (4) is fixed to the side of the housing (2), and the lever (5) is located inside the cylinder (4).

4. A marking device with a rotating wheel according to claim 1, characterized in that, The handle (1) has a limiting block (13) fixed inside for limiting the rotation of the triangle plate (10).

5. A marking device with a rotating wheel according to claim 1, characterized in that, A rubber sleeve (3) is fixedly fitted onto the end of the connecting rod (9) away from the triangular plate (10).

6. A marking device with a rotating wheel according to claim 1, characterized in that, A U-shaped insert (11) is fixed on the bracket (8). A first locking block (16) is fixed at both ends of the insert (11). Two second locking blocks (17) are fixed on the inner wall of the housing (2). The first locking block (16) is inserted into the housing (2) and locked and limited by the second locking block (17).

Citation Information

Patent Citations

  • Scriber for assisting painting-spraying tank in marking

    CN200985486Y