A scraper blade with a replaceable cover

By combining the design of the pin, the moving plate, the spring and the connecting plate, the problem of the difficulty in replacing the traditional oil scraper cover is solved, and the oil scraper can be easily replaced and used stably.

CN224572720UActive Publication Date: 2026-07-31QINGDAO YONGMINGXING PRECISION IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO YONGMINGXING PRECISION IND CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The traditional scraper blade's cover is fixedly connected to the scraper blade, making it difficult to replace separately, resulting in material waste and increased usage costs.

Method used

An oil scraper structure was designed, which enables quick assembly and disassembly of the cover sleeve and the oil scraper body through the combination of a pin, a moving plate, a spring and a connecting plate, and enhances the connection stability through the cooperation of a screw and a pressing plate.

Benefits of technology

It enables convenient replacement of the cover sleeve, saves time, improves ease of use, and maintains stability during the oil scraping process, preventing loosening or displacement.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224572720U_ABST
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Abstract

This utility model discloses a convenient replaceable scraper cover, comprising a scraper body and a cover. Two pins are slidably installed through a movable opening on the outer wall of the scraper body. The outer walls of both sides of the cover have insertion holes that mate with one end of each pin. A first connecting frame is fixedly installed at the other end of each pin. An actuating opening communicating with the movable opening is provided on the outer wall of the scraper body. A prismatic rod is fixedly installed on the inner wall of the actuating opening, and a movable plate is slidably installed on the outer wall of the prismatic rod. This utility model, by incorporating pins, a movable plate, a spring, and a connecting plate, achieves quick assembly and disassembly of the cover and scraper body. The elastic force of the spring controls the extension and retraction of the pins, and with the manual operation of the handle, the cover can be replaced without any tools. This convenient and efficient operation significantly saves replacement time and improves usability.
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Description

Technical Field

[0001] This utility model relates to the field of kitchen utensils technology, and in particular to an oil scraper with a convenient replaceable cover. Background Technology

[0002] In daily kitchen use, grease scrapers are a common tool for cleaning oil stains from pots and pans and tableware.

[0003] Traditional scraper blades typically have their coverings (such as oil-absorbing layers and scraping layers) fixedly connected to the scraper blade body (e.g., glued, sewn). When the coverings become heavily soiled with oil, wear out, or need to be replaced with different materials, they are difficult to disassemble individually, often requiring the entire scraper blade to be replaced. This results in material waste, increased usage costs, and insufficient practicality. Therefore, it is necessary to redesign a scraper blade with a more convenient covering to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a convenient replacement of the coating on the oil scraper.

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

[0006] A convenient replaceable scraper blade includes a scraper body and a cover. Two pins are slidably installed through a movable opening on the outer wall of the scraper body. The outer walls of both sides of the cover have insertion holes that mate with one end of each pin. A first connecting frame is fixedly installed at the other end of each pin. An actuating opening communicating with the movable opening is provided on the outer wall of the scraper body. A prismatic rod is fixedly installed on the inner wall of the actuating opening. A movable plate is slidably installed on the outer wall of the prismatic rod. A limiting plate that mates with the movable plate is fixedly installed at the lower end of the prismatic rod. A spring is installed on the outer wall of the prismatic rod, with its two ends elastically connected to the inner wall of the actuating opening and the upper surface of the movable plate, respectively. Two second connecting frames are fixedly installed on the bottom wall of the movable plate. The inner walls of the two second connecting frames are rotatably connected to the interior of the first connecting frame on the same side via a connecting mechanism. Two handles are fixedly installed on the upper surface of the movable plate.

[0007] Preferably, the connecting mechanism includes a connecting plate rotatably mounted inside the second connecting frame, the end of the connecting plate being rotatably connected to the inside of the first connecting frame.

[0008] Preferably, multiple guide blocks are fixedly installed on both the front and back sides of the scraper body, and the inner wall of the cover sleeve is provided with guide grooves that cooperate with the multiple guide blocks.

[0009] Preferably, two support plates are fixedly installed on both the front and back sides of the scraper body, and a screw is installed through the outer wall of each support plate by means of a threaded rotation.

[0010] Preferably, a knob is fixedly installed at one end of each screw, and a connecting block is fixedly installed at the other end of each screw.

[0011] Preferably, an extrusion plate is fixedly installed on the inner wall of each connecting block, and multiple anti-slip teeth are fixedly installed on the inner wall of each extrusion plate.

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

[0013] 1. By setting up components such as a pin, a moving plate, a spring, and a connecting plate, the cover sleeve and the scraper body can be quickly disassembled and assembled. The elastic force of the spring controls the extension and retraction of the pin. With the manual operation of the handle, the cover sleeve can be replaced without the aid of any tools. The operation is convenient and efficient, greatly saving replacement time and improving the ease of use.

[0014] 2. By setting components such as screws, connecting blocks, and extrusion plates, the covering sleeve can be further fixed. Rotating the screw can drive the extrusion plate to press the covering sleeve tightly. With the anti-slip teeth on the extrusion plate, the connection stability between the covering sleeve and the scraper body is effectively enhanced, preventing loosening or displacement due to force during the scraping process, and ensuring the reliability of the scraping operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a scraper blade with a convenient replaceable coating proposed in this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the vertical section structure;

[0017] Figure 3 This is a side view of the structure of a scraper blade with a convenient replaceable cover, as proposed in this utility model.

[0018] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B in the diagram.

[0020] In the figure: 1. Scraper body, 2. Covering sleeve, 3. Pin, 4. First connecting frame, 5. Prism rod, 6. Moving plate, 7. Limiting plate, 8. Spring, 9. Second connecting frame, 10. Connecting plate, 11. Handle, 12. Guide block, 13. Support plate, 14. Screw, 15. Knob, 16. Connecting block, 17. Extrusion plate. Detailed Implementation

[0021] 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.

[0022] Reference Figure 1-5 A convenient replaceable oil scraper includes an oil scraper body 1 and a cover sleeve 2. Two pins 3 are slidably installed through a movable opening on the outer wall of the oil scraper body 1. The outer walls on both sides of the cover sleeve 2 are provided with insertion holes that mate with one end of the pins 3. The other ends of the two pins 3 are fixedly installed with first connecting frames 4. The outer wall of the oil scraper body 1 is provided with an action opening that communicates with the movable opening. A prismatic rod 5 is fixedly installed on the inner wall of the action opening. A movable plate 6 is slidably installed on the outer wall of the prismatic rod 5. A limiting plate 7 that mates with the movable plate 6 is fixedly installed at the lower end of the prismatic rod 5. A spring 8 is installed on the outer wall of the prismatic rod 5. The two ends of the spring 8 are elastically connected to the inner wall of the action opening and the upper end face of the movable plate 6, respectively. Two second connecting frames 9 are fixedly installed on the bottom wall of the movable plate 6. The inner walls of the two second connecting frames 9 are rotatably connected to the inner wall of the first connecting frame 4 on the same side through a connecting mechanism. Two handles 11 are fixedly installed on the upper end face of the movable plate 6.

[0023] The connecting mechanism includes a connecting plate 10 rotatably installed inside the second connecting frame 9, and the end of the connecting plate 10 is rotatably connected to the inside of the first connecting frame 4.

[0024] Furthermore, the rotation of the connecting plate 10 within the second connecting frame 9 and the first connecting frame 4 can convert the up-and-down movement of the moving plate 6 into the left-and-right movement of the pin 3, making the insertion and removal of the pin 3 smoother.

[0025] Multiple guide blocks 12 are fixedly installed on both the front and back sides of the scraper body 1, and guide grooves that cooperate with the multiple guide blocks 12 are opened on the inner wall of the cover sleeve 2.

[0026] Furthermore, the cooperation between the guide block 12 and the guide groove can play a guiding role when installing the cover sleeve 2, ensuring that the cover sleeve 2 is accurately fitted onto the scraper body 1, thereby improving installation efficiency.

[0027] Two support plates 13 are fixedly installed on both the front and back sides of the scraper body 1, and a screw 14 is installed through the outer wall of each support plate 13 by threaded rotation.

[0028] Furthermore, the support plate 13 provides mounting support for the screw 14, and the threaded connection allows the screw 14 to move back and forth by rotation, making it easy to adjust its position.

[0029] A knob 15 is fixedly installed at one end of each screw 14, and a connecting block 16 is fixedly installed at the other end of each screw 14.

[0030] Furthermore, the knob 15 allows the user to easily rotate the screw 14, while the connecting block 16 can transmit the force of the screw 14 to subsequent components and also serves as a connection.

[0031] Each connecting block 16 has an extrusion plate 17 fixedly installed on its inner wall, and each extrusion plate 17 has multiple anti-slip teeth fixedly installed on its inner wall.

[0032] Furthermore, the extrusion plate 17 can press and fix the cover sleeve 2 under the push of the screw 14, and the anti-slip teeth can increase the friction between the extrusion plate 17 and the cover sleeve 2 to prevent the cover sleeve 2 from loosening during use.

[0033] When using this utility model, the handle 11 can be pulled upwards, the moving plate 6 compresses the spring 8 and slides upwards, and the connecting plate 10 drives the pin 3 to retract into the oil scraper body 1 (disengaging from the insertion hole of the cover sleeve 2). At this time, the fixed relationship between the cover sleeve 2 and the oil scraper body 1 is released, and the old cover sleeve 2 can be directly pulled out along the cooperation direction of the guide block 12 and the guide groove. If the cover sleeve 2 is difficult to remove due to oil stains, the edge of the cover sleeve 2 can be gently pried to separate it from the oil scraper body 1. The guide structure can prevent the cover sleeve 2 from tilting and getting stuck during disassembly.

[0034] When replacing the new cover sleeve 2, first align the guide groove on the inner wall of the new cover sleeve 2 with the guide block 12 on the scraper body 1, and push it in smoothly along the guide direction until the cover sleeve 2 completely fits the outer surface of the scraper body 1. At this time, the insertion holes on both sides of the cover sleeve 2 are precisely aligned with the positions of the pins 3. Then, release the handle 11. Under the action of the elastic restoring force, the spring 8 pushes the moving plate 6 to slide down along the prism rod 5. Through the transmission of the connecting plate 10, the two pins 3 extend outward from the scraper body 1 simultaneously and are precisely inserted into the insertion holes of the new cover sleeve 2, completing the initial fixing. To further ensure the secure installation of the cover sleeve 2, the knobs 15 on both sides can be rotated to drive the screw 14 to push inward along the threaded hole of the support plate 13, so that the extrusion plate 17 at the end of the connecting block 16 gradually approaches the outer wall of the cover sleeve 2. When the anti-slip teeth on the extrusion plate 17 are in close contact with the surface of the cover sleeve 2 and generate appropriate pressure, the knobs 15 are stopped. At this time, the cover sleeve 2 is firmly clamped between the oil scraper body 1 and the extrusion plate 17. Even when subjected to a large external force when scraping stubborn oil stains, it will not loosen or shift, ensuring the stability of the oil scraping operation.

[0035] 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 wiper blade with a cover body for easy replacement, comprising a wiper blade body (1) and a cover (2), characterized in that, Two pins (3) are slidably installed through a movable opening on the outer wall of the scraper body (1). The outer walls of both sides of the covering sleeve (2) are provided with insertion holes that mate with one end of each pin (3). A first connecting frame (4) is fixedly installed at the other end of each pin (3). An action opening communicating with the movable opening is provided on the outer wall of the scraper body (1). A prismatic rod (5) is fixedly installed on the inner wall of the action opening. A movable plate (6) is slidably installed on the outer wall of the prismatic rod (5). The lower end is fixedly installed with a limiting plate (7) that cooperates with the moving plate (6). The outer wall of the prismatic rod (5) is equipped with a spring (8). The two ends of the spring (8) are elastically connected to the inner wall of the action opening and the upper end face of the moving plate (6), respectively. The bottom wall of the moving plate (6) is fixedly installed with two second connecting frames (9). The inner walls of the two second connecting frames (9) are rotatably connected to the inside of the first connecting frame (4) on the same side through a connecting mechanism. The upper end face of the moving plate (6) is fixedly installed with two handles (11).

2. The oil scraper insert of claim 1, wherein, The connecting mechanism includes a connecting plate (10) rotatably installed inside the second connecting frame (9), and the end of the connecting plate (10) is rotatably connected to the inside of the first connecting frame (4).

3. The oil scraper insert of claim 2, wherein, The scraper body (1) has multiple guide blocks (12) fixedly installed on both sides, and the inner wall of the cover sleeve (2) has guide grooves that cooperate with the multiple guide blocks (12).

4. The oil scraper insert of claim 3, wherein, The scraper body (1) has two support plates (13) fixedly installed on both sides. Each support plate (13) has a screw (14) installed through the outer wall by a threaded rotation.

5. The oil scraper insert of claim 4, wherein, Each screw (14) has a knob (15) fixedly installed at one end and a connecting block (16) fixedly installed at the other end.

6. The oil scraper insert of claim 5, wherein, Each of the connecting blocks (16) has an extrusion plate (17) fixedly installed on its inner wall, and each of the extrusion plates (17) has multiple anti-slip teeth fixedly installed on its inner wall.