A printer upper cover and a thermal printer

Abstract

The utility model discloses a printer upper cover and thermal printer, printer upper cover is provided with cover and turnover frame, and printer upper cover can be hinged in the lateral wall of paper bin through one end of turnover frame, and can be housed in paper bin through rotation, or is unfolded from paper bin, cover and turnover frame articulate, and when being housed in paper bin, cover closes paper bin through rotation, and then avoids turnover frame and printer paper to be exposed, when opening paper bin, first of all, rotates turnover frame, and then rotates cover, and the paper bin is opened completely, through the rotation of turnover frame and the rotation of cover, the rotation range of cover can be improved significantly, and then make cover can open paper bin completely, provide the convenience for the replacement of printer paper. At the same time, effectively avoid the problem that cover and printer main body collide in the process of opening, thereby reduce the risk of cover damage, prolong the service life of thermal printer.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, specifically to a printer cover and a thermal printer. Background Technology

[0002] A thermal printer is a device that uses the principle of thermal paper developing color when heated to print text or images. It is widely used in scenarios such as cash register receipts, express delivery labels, and medical labels.

[0003] The printer has a paper tray inside. Because printers need to be changed frequently, the paper tray cover is usually hinged to the bottom of the printer. When you need to change the paper, simply flip the cover to open the paper tray.

[0004] While the hinged connection between the top cover and the bottom shell facilitates opening the paper tray, the limited opening range of the top cover makes it difficult to fully open the paper tray, causing inconvenience for loading and unloading paper. Furthermore, when the top cover is opened to its maximum extent, it is prone to impact with the bottom shell, which can easily lead to damage to the top cover. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a printer top cover and a thermal printer to solve the technical problem that the paper tray is difficult to fully open due to the limited opening range of the printer top cover in the prior art.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: On one hand, this utility model provides a printer cover, including a cover body and a flip frame. One end of the flip frame is configured to be hinged to the side wall of the paper tray, and the other end of the flip frame is hinged to the cover body. The flip frame can be stored in the paper tray by rotating around the side wall of the paper tray. The cover body is configured to open or close the paper tray of the printer body. The flip frame can be rotated to be stored in the paper tray or unfolded from the paper tray. When the flip frame is stored in the paper tray, the cover body can close the paper tray by rotating around the flip frame. When the flip frame is unfolded from the paper tray, the cover body can open the paper tray by rotating around the flip frame.

[0007] The printer cover provided in this application includes a cover body and a flip-up frame. The printer cover can be hinged to the side wall of the paper tray via one end of the flip-up frame, and can be rotated to be stored in or unfolded from the paper tray. The cover body is hinged to the flip-up frame. When stored in the paper tray, the cover body closes the paper tray by rotation, thus preventing the flip-up frame and printer paper from being exposed. To open the paper tray, first rotate the flip-up frame to unfold it from inside the paper tray, and then rotate the cover body to fully open the paper tray. Through one rotation of the flip-up frame and two rotations of the cover body, the rotation range of the cover body can be significantly increased, allowing the cover body to fully open the paper tray, facilitating the replacement of printer paper. At the same time, it effectively avoids the problem of the cover body colliding with the printer body during the opening process, thereby reducing the risk of cover body damage and extending the service life of the thermal printer.

[0008] In some embodiments, the flipping frame includes a connecting arm and a connecting rod connected to both ends of the connecting arm, the lower end of the connecting rod being configured to be hinged to the side wall of the paper tray.

[0009] In some embodiments, the lower end of the connecting rod is provided with a first protrusion, and the lower end of the connecting rod is configured to be hinged to the side wall of the paper bin via the first protrusion.

[0010] In some embodiments, the upper end of the connecting rod is provided with a second protrusion, and the two sides of the cover are provided with connecting holes. The second protrusion is rotatably connected to the connecting holes so as to be hinged to the cover through the connecting holes.

[0011] In some embodiments, a clearance space is formed between the link and the connecting arm, the clearance space being used to avoid printer paper from the paper tray.

[0012] In some embodiments, the bottom of the cover is provided with an assembly protrusion for inserting into the assembly hole of the printer body.

[0013] In some embodiments, a limiting groove is also provided at the bottom of the cover, the limiting groove being used to connect the elastic limiting block of the printer body.

[0014] In some embodiments, a mounting bracket is further provided at the bottom of the cover for mounting the rollers of the printer body.

[0015] On the other hand, this application provides a thermal printer, comprising: The printer body is equipped with a paper tray; The printer cover described above has a connecting frame that is hinged to the side wall of the paper tray.

[0016] In some embodiments, the sidewall of the paper bin is provided with a hinge frame that extends to the edge of the paper bin, and the flipping frame is hinged to one end of the hinge frame that extends to the edge of the paper bin.

[0017] The thermal printer of this application, by incorporating the aforementioned printer cover into the printer body, allows the paper tray to be opened via a single rotation of the flip frame and a secondary rotation of the cover. This significantly increases the cover's rotation range, facilitating paper replacement. Simultaneously, it effectively prevents the cover from colliding with the printer body during opening, thereby reducing the risk of cover damage and extending the lifespan of the thermal printer. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the printer top cover provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the structure of the cover provided in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the flipping frame provided in this embodiment of the utility model; Figure 4 This is a schematic diagram of the structure of the thermal printer provided in this embodiment of the utility model; Figure 5 This is a schematic diagram of the structure of the hidden cover of the thermal printer provided in this embodiment of the utility model.

[0019] Labels for each item in the figure: 10. Cover; 11. Assembly protrusion; 12. Limiting groove; 13. Mounting bracket; 14. Connecting hole; 20. Tilting frame; 21. Connecting arm; 22. Linkage rod; 221. First protrusion; 222. Second protrusion; 23. Clearance space; 30. Printer body; 31. Through-hole; 32. Paper tray; 321. Hinge frame; 33. Roller; 34. Assembly hole; 35. Elastic limit block; 10a. Printer paper. Detailed Implementation

[0020] 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 illustrative of the present utility model and are not intended to limit the present utility model.

[0021] To address the technical problem in existing technologies where the limited opening range of the printer cover makes it difficult to fully open the paper tray, this invention provides a printer cover that can increase the flipping range of the cover through two flips, thereby fully opening the printer paper tray and facilitating paper replacement.

[0022] Please see Figure 1 This utility model provides a printer cover, including a cover body 10 and a flip frame 20. One end of the flip frame 20 is configured to be hinged to the side wall of the paper tray 32, and the other end of the flip frame 20 is hinged to the cover body 10. The flip frame 20 can be rotated around the side wall of the paper tray 32 and stored in the paper tray 32. The cover body 10 is configured to open or close the paper tray 32 of the printer body 30. The flip frame 20 can be rotated to be stored in the paper tray 32 or unfolded from the paper tray 32. When the flip frame 20 is stored in the paper tray 32, the cover body 10 can close the paper tray 32 by rotating around the flip frame 20. When the flip frame 20 is unfolded or unfolded from the paper tray 32, the cover body 10 can open the paper tray 32 by rotating around the flip frame 20.

[0023] The printer cover provided in this embodiment includes a cover body 10 and a flip frame 20. The printer cover can be hinged to the side wall of the paper tray 32 through one end of the flip frame 20, and can be rotated to be stored in the paper tray 32 or unfolded from the paper tray 32. The cover body 10 is hinged to the flip frame 20. When stored in the paper tray 32, the cover body 10 closes the paper tray 32 by rotating, thereby preventing the flip frame 20 and the printer paper 10a from being exposed. When opening the paper tray 32, the flip frame 20 is rotated first to unfold the flip frame 20 from the paper tray 32, and then the cover body 10 is rotated to fully open the paper tray 32. Through one rotation of the flip frame 20 and two rotations of the cover body 10, the rotation range of the cover body 10 can be significantly increased, thereby enabling the cover body 10 to fully open the paper tray 32, providing convenience for replacing the printer paper 10a. At the same time, it effectively avoids the problem of the cover 10 colliding with the printer body 30 during the opening process, thereby reducing the risk of damage to the cover 10 and extending the service life of the thermal printer.

[0024] In this embodiment, the shape of the cover 10 is adapted to the shape of the opening on the upper side of the paper tray 32. When the cover 10 closes the opening of the paper tray 32, a through-hole 31 is formed between the cover 10 and the printer body 30 for the printer to pass through.

[0025] In some embodiments, the bottom of the cover 10 is provided with an assembly protrusion 11, which is used to insert into the assembly hole 34 of the printer body 30. In this embodiment, the printer body 30 is provided with an assembly hole 34, the position of which corresponds to the assembly protrusion 11 on the bottom of the cover 10. When the paper tray 32 is closed, the assembly protrusion 11 is accurately inserted into the assembly hole 34, achieving a stable connection between the cover 10 and the printer body 30. This insertion method ensures that the cover 10 and the printer body 30 maintain good connection stability during long-term use, preventing loosening or detachment, thus improving the reliability and durability of the overall printer structure.

[0026] In some embodiments, a limiting groove 12 is also provided at the bottom of the cover 10, which is used to connect the elastic limiting block 35 of the printer body 30. Specifically, an elastic limiting block 35 is provided at a corresponding position on the printer body 30. When the cover 10 closes the paper tray 32 opening, the elastic limiting block 35 will be embedded in the limiting groove 12. This further enhances the connection stability between the cover 10 and the printer body 30. When the printer vibrates during operation, the elastic limiting block 35 plays a buffering and fixing role in the limiting groove 12, effectively preventing the cover 10 from shaking or shifting due to vibration, improving the overall stability and reliability of the printer structure, and ensuring that the printer can maintain a good working condition during long-term use.

[0027] In some embodiments, a mounting bracket 13 is also provided at the bottom of the cover 10, which is used to mount the roller 33 of the printer body 30. Specifically, the mounting bracket 13 can accurately fix the position of the roller 33, ensuring that the roller 33 operates stably during printer operation. When the cover 10 is opened, the roller 33 separates from the printer body 30 as the cover 10 flips, thereby facilitating the maintenance of the roller 33 and avoiding obstruction of the pulling out of the printer paper 10a. When the cover 10 is closed, the roller 33 is fitted onto the printer body 30 and presses down on the pulled-out printer paper 10a.

[0028] In some embodiments, the tilting frame 20 includes a connecting arm 21 and connecting rods 22 connected to both ends of the connecting arm 21. The lower end of the connecting rods 22 is configured to be hinged to the side wall of the paper tray 32. During the opening or closing of the cover 10, the connecting rods 22 rotate about the hinge point with the side wall of the paper tray 32, thereby driving the connecting arm 21 and the entire tilting frame 20 to achieve a smooth tilting action. The connecting arm 21 can synchronize the tilting action of the connecting rods 22 on both sides and strengthen the structure of the tilting frame 20.

[0029] In some embodiments, the lower end of the connecting rod 22 is provided with a first protrusion 221, and the lower end of the connecting rod 22 is configured to be hinged to the side wall of the paper tray 32 through the first protrusion 221. In this embodiment, the first protrusion 221 is cylindrical, and its diameter is adapted to the corresponding hinge hole on the side wall of the paper tray 32 to ensure the stability and flexibility of the hinge. When the connecting rod 22 rotates around the first protrusion 221, friction can be reduced, making the flipping action smoother. The surface of the first protrusion 221 is specially treated to have high hardness and wear resistance to improve its performance.

[0030] In some embodiments, the upper end of the connecting rod 22 is provided with a second protrusion 222, and the two sides of the cover 10 are provided with connecting holes 14. The second protrusion 222 is rotatably connected to the connecting holes 14 to be hinged to the cover 10 through the connecting holes 14. In a specific implementation, the second protrusion 222 is cylindrical, and its diameter matches the size of the connecting holes 14 on both sides of the cover 10 to ensure the tightness and reliability of the hinge. This design not only allows the cover 10 to rotate flexibly around the second protrusion 222 during opening and closing, but also effectively disperses stress and prevents wear or deformation caused by long-term use.

[0031] In some embodiments, a clearance space 23 is formed between the connecting rod 22 and the connecting arm 21, which is used to avoid the printer paper 10a in the paper tray 32. In specific implementations, the size and shape of the clearance space 23 are just enough to provide sufficient room for the printer paper 10a. During normal operation of the printer, the printer paper 10a is conveyed in the paper tray 32. The clearance space 23 can prevent the connecting rod 22 and the connecting arm 21 from interfering with the printer paper 10a, ensuring that the conveying process of the printer paper 10a is smooth and unobstructed, and that there will be no paper jams or other situations that affect the printing effect. At the same time, it makes the internal structure of the entire printer more compact and reasonable, and improves the space utilization rate.

[0032] This application embodiment also provides a thermal printer, including: The printer body 30 has a paper tray 32; The printer cover described above has a connecting frame that is hinged to the side wall of the paper tray 32.

[0033] The thermal printer of this application, by providing the aforementioned printer cover on the printer body 30, allows the paper tray 32 to be opened via a single rotation of the flip frame 20 and a secondary rotation of the cover 10. This significantly increases the rotation range of the cover 10, facilitating the replacement of the printed paper 10a. Simultaneously, it effectively avoids the problem of the cover 10 colliding with the printer body 30 during opening, thereby reducing the risk of damage to the cover 10 and extending the service life of the thermal printer.

[0034] In this embodiment, the printer is equipped with a core and a roller 33. The roller 33 is rotatably connected to the mounting bracket 13 of the cover 10. When the printer is working, the roller 33 rotates. During the rotation, the roller 33 drives the printer paper 10a to feed smoothly in the paper tray 32 and pass out through the opening 31. The core prints the printer paper 10a in the paper feed.

[0035] In some embodiments, a hinge frame 321 is provided on the side wall of the paper tray 32, extending to the edge of the paper tray 32. The flip frame 20 is hinged to one end of the hinge frame 321 extending to the edge of the paper tray 32. Specifically, the flip frame 20 can be hinged to the side wall of the paper tray 32 through the hinge frame 321. By hinged to the end of the hinge frame 321 extending to the edge of the paper tray 32, when the flip frame 20 is unfolded, the cover 10 can be moved as far away from the paper tray 32 as possible, thereby increasing the opening range of the paper tray 32 and facilitating the installation of the printer paper 10a.

[0036] In this embodiment, the printer body 30 is also provided with an assembly hole 34 and an elastic limiting block 35. When the cover 10 closes the paper tray 32, the assembly protrusion 11 is inserted into the assembly hole 34, and the elastic limiting block 35 is fitted into the limiting groove 12.

[0037] 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 printer top cover, characterized in that, include: The cover is configured to open or close the paper tray of the printer body; A flip-up frame, one end of which is configured to be hinged to the side wall of the paper compartment and the other end to the cover, can be stored in the paper compartment or unfolded from the paper compartment by rotating about the side wall of the paper compartment. When the flip frame is stored in the paper compartment, the cover can close the paper compartment by rotating around the flip frame. When the flip frame is unfolded from the paper compartment, the cover can open the paper compartment by rotating around the flip frame.

2. A printer cover according to claim 1, characterized in that, The flipping frame includes a connecting arm and connecting rods connected to both ends of the connecting arm, the lower end of the connecting rods being configured to be hinged to the side wall of the paper tray.

3. A printer cover according to claim 2, characterized in that, The lower end of the connecting rod is provided with a first protrusion, and the lower end of the connecting rod is configured to be hinged to the side wall of the paper bin through the first protrusion.

4. A printer cover according to claim 2, characterized in that, The upper end of the connecting rod is provided with a second protrusion, and the two sides of the cover are provided with connecting holes. The second protrusion is rotatably connected to the connecting holes so as to be hinged to the cover through the connecting holes.

5. A printer cover according to claim 2, characterized in that, The connecting rod and the connecting arm enclose a clearance space, which is used to avoid the printer paper in the paper tray.

6. A printer cover according to any one of claims 1-5, characterized in that, The bottom of the cover is provided with an assembly protrusion, which is used to insert into the assembly hole of the printer body.

7. A printer cover according to claim 6, characterized in that, The bottom of the cover is also provided with a limiting groove, which is used to connect the elastic limiting block of the printer body.

8. A printer cover according to claim 7, characterized in that, The bottom of the cover is also provided with a mounting bracket for mounting the rollers of the printer body.

9. A thermal printer, characterized in that, include: The printer body is equipped with a paper tray; The printer cover as described in any one of claims 1-8, wherein the connecting frame of the printer cover is hinged to the side wall of the paper tray.

10. A thermal printer according to claim 9, characterized in that, The paper bin is provided with a hinge frame on its side wall, the hinge frame extends to the edge of the paper bin, and the flipping frame is hinged to one end of the hinge frame that extends to the edge of the paper bin.

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