An angle-adjustable doctor blade

Abstract

An angle-adjustable scraper comprises a long rod, a movable joint, a connecting piece, a connecting rod, a clamp and a cutter, the front end of the long rod is provided with external threads, the rear end of the movable joint is provided with a connecting hole, the connecting hole is provided with internal threads, the long rod and the movable joint are connected together through the external threads and the internal threads, the front end of the movable joint is fixedly connected with a first rotary disc, the edge of the front end surface of the first rotary disc is provided with a first gear ring, the opposite surface of the first rotary disc is provided with a second rotary disc, the second rotary disc is provided with a second gear ring opposite the first gear ring, the first gear ring and the second gear ring are both provided with rectangular tooth gaps, and the first gear ring and the second gear ring are engaged together through the rectangular tooth gaps. The scraper is provided with the long rod, the construction personnel can directly operate on the ground, the ladder does not need to be frequently climbed, the inconvenience and the safety risk caused by the use of the ladder are effectively avoided, and the convenience and the safety of construction are greatly improved.

Description

Technical Field

[0001] This utility model relates to a tool for building decoration, and more particularly to an angle-adjustable scraper. Background Technology

[0002] In the field of building decoration, wall smoothing and puttying are crucial construction steps, directly affecting the smoothness and aesthetics of the walls, and thus influencing the overall quality of the decoration project. Most scrapers on the market today are traditional short-handled designs. These scrapers are convenient and easy for workers to handle when working on lower walls, thanks to their small size and flexibility. However, when smoothing or putting on higher walls, especially ceilings, the limitations of traditional short-handled scrapers become apparent. Due to their limited length, workers must use ladders or other auxiliary tools to raise the working height. This not only increases the complexity of the work, requiring frequent climbing up and down ladders to adjust the working position, consuming a lot of physical strength and time, and reducing work efficiency; but also makes it difficult for workers to maintain their balance while working on ladders, especially when scraping, as the body sways significantly, increasing the risk of loss of balance and falls, thus posing a serious threat to the personal safety of construction workers.

[0003] To address these issues, portable long-handled scrapers have emerged on the market. These scrapers, by extending the handle, allow workers to operate from the ground and work on higher walls, mitigating some of the inconvenience and danger associated with using ladders. However, existing portable long-handled scrapers generally suffer from insufficient flexibility. In actual construction, wall surfaces are complex and varied, and different areas may require the scraper to be operated at different angles, such as corners or sloping walls. However, most existing portable long-handled scrapers cannot flexibly adjust the angle between the scraper and the handle, or the adjustment range is limited and inconvenient to operate. This makes it difficult for workers to precisely control the scraper angle according to actual construction needs, compromising construction quality and effectiveness, and failing to meet diverse construction requirements.

[0004] In summary, existing scrapers all have certain problems when dealing with wall construction at different heights and angles. Therefore, developing a scraper that can flexibly adjust its angle and is convenient for construction on high walls is of great practical significance. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an angle-adjustable scraper.

[0006] The technical problem to be solved by this utility model is achieved by the following technical solution:

[0007] An angle-adjustable scraper includes a long rod, a movable connector, a connector, a connecting rod, a clamp, and a cutting tool. The front end of the long rod is provided with an external thread, and the rear end of the movable connector is provided with a connecting hole. The connecting hole is provided with an internal thread. The long rod and the movable connector are connected together by the external and internal threads. The front end of the movable connector is fixed to a first turntable. A first toothed ring is provided at the edge of the front end face of the first turntable. A second turntable is provided on the opposite side of the first turntable. A second toothed ring is provided on the second turntable at a position opposite to the first toothed ring. Both the first and second toothed rings are provided with rectangular teeth, and the first and second toothed rings mesh together through the rectangular teeth.

[0008] The first and second turntables are fixed together by bolts and nuts.

[0009] The second turntable side is fixedly connected to the connector. There are two clamps, and the clamps are integral, including a fixing part, a bending part and a clamping part. The two clamps are arranged opposite to each other. The fixing parts of the two clamps are respectively attached to the two ends of the connecting rod, and the two clamps and the connecting rod are fixed to the connector by bolts and nuts.

[0010] The cutting tool is positioned between the clamping parts of the two clamps.

[0011] The long rod has a handle attached to its tail end, and the handle has a hanging hole.

[0012] The beneficial effects of this utility model are:

[0013] Traditional short-handled scrapers require ladders when working on high walls, especially ceilings, which is not only cumbersome and time-consuming but also poses safety hazards. This new scraper, however, is equipped with a long handle, allowing workers to operate it directly from the ground without frequent ladder climbing. This effectively avoids the inconvenience and safety risks associated with ladder use, greatly improving the convenience and safety of construction and making high-altitude wall work easy and efficient.

[0014] Existing movable long-handled scrapers lack flexibility, making it difficult to adjust the angle between the scraper and the handle according to complex wall surfaces, thus affecting construction quality and results. This new scraper design, through its movable connector, first turntable, second turntable, and toothed ring engagement structure, allows for flexible adjustment of the angle between the scraper and the handle over a wide range. Construction workers can precisely control the scraper angle according to actual construction needs, achieving high-quality smoothing or puttying operations on various surfaces, including corners and sloping walls, meeting diverse construction requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of this utility model.

[0017] Figure 3 This is a top view of the present invention.

[0018] Figure 4 This is a schematic diagram of the structure of this utility model.

[0019] Among them, 1-long rod; 2-movable connector; 3-connector; 4-connecting rod; 5-clamp; 6-cutting tool; 7-first turntable; 8-first gear ring; 9-second turntable; 10-second gear ring; 11-fixing part; 12-bending part; 13-clamping part; 14-nut; 15-hand-held part; 16-hanging hole; 17-bolt. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0021] An angle-adjustable scraper includes a long rod 1, a movable connector 2, a connector 3, a connecting rod 4, a clamp 5, and a cutting tool 6. The front end of the long rod 1 is provided with an external thread, and the rear end of the movable connector 2 is provided with a connecting hole with an internal thread. The long rod 1 and the movable connector 2 are connected together by the external and internal threads. The front end of the movable connector 2 is fixed to a first turntable 7. A first toothed ring 8 is provided at the edge of the front end face of the first turntable 7. A second turntable 9 is provided on the opposite side of the first turntable 7. A second toothed ring 10 is provided on the second turntable 9 at the position opposite to the first toothed ring 8. Both the first toothed ring 8 and the second toothed ring 10 are provided with rectangular teeth. The first toothed ring 8 and the second toothed ring 10 are engaged together by the rectangular teeth.

[0022] The first turntable 7 and the second turntable 9 are fixed together by bolts and nuts.

[0023] The second turntable 9 is fixedly connected to the connecting piece on the side. There are two clamps 5, and the clamps are integral, including a fixing part 11, a bending part 12 and a clamping part 13. The two clamps 5 are arranged opposite to each other. The fixing parts of the two clamps 5 are respectively attached to the two ends of the connecting rod 4, and the two clamps 5 and the connecting rod 4 are fixed to the connecting piece 3 by bolts 17 and nuts 14.

[0024] The cutting tool 6 is positioned between the clamping parts 13 of the two clamps 5.

[0025] The end of the long rod 1 is fitted with a handle 15, and the handle 15 has a hanging hole 16.

[0026] The implementation method of this utility model is as follows: When dealing with high-altitude wall construction, the construction worker can hold the handheld part 15 at the end of the long rod 1. Since the front end of the long rod 1 is connected to the internal thread of the rear end of the movable connector 2 through the external thread, the front end of the movable connector 2 is fixed to the first turntable 7. The first turntable 7 and the second turntable 9 are engaged by the first gear ring 8 and the second gear ring 10 and are fixed by bolts and nuts. When it is necessary to adjust the angle of the cutter 6, the bolts and nuts are loosened, the second turntable 9 is rotated, which drives the connector 3, the connecting rod 4, the clamp 5 and the cutter 6 to rotate. After adjusting to the appropriate angle, the bolts and nuts are tightened to fix it. In this way, the construction worker can flexibly adjust the angle of the cutter 6 on the ground to carry out high-altitude wall construction without the need for a ladder.

[0027] The second turntable 9 is fixedly connected to the connecting piece 3 on the side. The fixing parts 11 of the two integrated clamps 5 are attached to both ends of the connecting rod 4 and fixed to the connecting piece 3 by bolts and nuts. The cutter 6 is placed between the clamping parts 13 of the two clamps 5. This structure makes the cutter 6 installed firmly, and together with the movable connector 2 and other components, it can meet the construction needs of different parts of the wall and improve the construction quality and efficiency.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An angle-adjustable scraper, characterized in that, The device includes a long rod, a movable connector, a connector, a connecting rod, a clamp, and a cutting tool. The front end of the long rod is provided with an external thread, and the rear end of the movable connector is provided with a connecting hole. The connecting hole is provided with an internal thread. The long rod and the movable connector are connected together by the external and internal threads. The front end of the movable connector is fixed to a first turntable. A first toothed ring is provided at the edge of the front end face of the first turntable. A second turntable is provided on the opposite side of the first turntable. A second toothed ring is provided on the second turntable at a position opposite to the first toothed ring. Both the first and second toothed rings are provided with rectangular teeth.

2. The angle-adjustable scraper according to claim 1, characterized in that, The first and second gear rings mesh together through rectangular teeth.

3. The angle-adjustable scraper according to claim 1, characterized in that, The first and second turntables are fixed together by bolts and nuts.

4. The angle-adjustable scraper according to claim 1, characterized in that, The second turntable side is fixedly connected to the connector. There are two clamps, and the clamps are integral, including a fixing part, a bending part and a clamping part. The two clamps are arranged opposite to each other. The fixing parts of the two clamps are respectively attached to the two ends of the connecting rod, and the two clamps and the connecting rod are fixed to the connector by bolts and nuts.

5. An angle-adjustable scraper according to claim 1, characterized in that, The cutting tool is positioned between the clamping parts of the two clamps.

6. The angle-adjustable scraper according to claim 1, characterized in that, The long rod has a handle attached to its tail end, and the handle has a hanging hole.

Images