Cover opening structure of handheld printer

Abstract

The utility model discloses a cover opening structure of a handheld printer, which relates to the technical field of printers and comprises a printer body, an upper cover is mounted on the printer body, a rubber roller is arranged on the printer body and positioned below the upper cover, and three baffles are mounted on the upper cover. When the printer body is used, the upper cover is closed, the spring moves the movable plate backwards, the uncovering key is jacked up, at the moment, the printer body is in a cover closing state, then a user presses the uncovering key, the uncovering key presses the lever downwards, and the cover is opened. The lever rotates by taking the bottom end of the lever as the center in an area surrounded by a retaining wall formed by the first limiting structure, the second limiting structure and the baffle at the position C, the movable plate is extruded, the movable plate moves forwards, the rubber roller is separated, the process of opening the cover is achieved, the upper cover is convenient to open or close, and meanwhile the rubber roller can be installed or separated.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, specifically to a handheld printer cover opening structure. Background Technology

[0002] Handheld printers are portable devices commonly used in retail, catering, logistics, and other industries. They allow users to print receipts anytime, anywhere, making them suitable for various mobile sales scenarios. However, opening the cover of a current handheld printer is somewhat cumbersome, and after opening it, the printing roller needs to be removed, making the printer less convenient to use. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a handheld printer cover opening structure, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a handheld printer cover opening structure, comprising a printer body, an upper cover mounted on the printer body, a rubber roller disposed on the printer body and below the upper cover, three baffles mounted on the upper cover, a movable plate disposed on the printer body and between the three baffles, a first limiting structure disposed on the printer body, a second limiting structure disposed on the printer body and to one side of the first limiting structure, a lever disposed between the first limiting structure and the second limiting structure, and a cover opening button disposed on the printer body.

[0005] Preferably, the bottom of the cover-opening button mates with one end of the lever, and the bottom of the lever mates with the surface of the movable plate.

[0006] Preferably, a spring is installed on the printer body at one end of the movable plate, and one end of the spring presses against the movable plate.

[0007] Preferably, the baffle has a relatively high height on both sides, and the baffle cooperates with the lever.

[0008] Preferably, the position of the cover opening button is matched with the position of the printer body.

[0009] This utility model provides a handheld printer cover opening structure, which has the following beneficial effects:

[0010] This handheld printer's cover-opening structure, consisting of a top cover, a cover-opening button, and a movable plate, allows for convenient opening and closing of the printer. When the printer is in use, closing the top cover causes a spring to move the movable plate backward, lifting the cover-opening button (closed state). Pressing the cover-opening button then depresses a lever, causing it to rotate around its bottom edge within the area enclosed by the first and second limiting structures and the baffle plate. This rotation squeezes the movable plate, causing it to move forward and disengage the rubber roller. This process facilitates opening and closing the top cover and allows for the installation or removal of the rubber roller. Attached Figure Description

[0011] Figure 1 This is a top view of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0013] Figure 3 This is a side view of the opening structure of this utility model;

[0014] Figure 4 This is a three-dimensional schematic diagram of the opening structure of this utility model.

[0015] In the diagram: 1. Top cover; 2. Printer body; 3. Open cover button; 4. Glue roller; 5. Baffle; 6. Movable plate; 7. Lever; 8. First limiting structure; 9. Second limiting structure. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1 to 4 This utility model provides a technical solution: a handheld printer cover opening structure, including a printer body 2, a top cover 1 installed on the printer body 2, a rubber roller 4 arranged on the printer body 2 and below the top cover 1, three baffles 5 installed on the top cover 1, a movable plate 6 arranged on the printer body 2 and between the three baffles 5, a first limiting structure 8 arranged on the printer body 2, a second limiting structure 9 installed on the printer body 2 and on one side of the first limiting structure 8, a lever 7 installed between the first limiting structure 8 and the second limiting structure 9, a cover opening button 3 installed on the printer body 2, and two elastic cantilever arms installed on the lever 7, which increases the number of contact points between the cover opening button 3 and the lever 7, thereby ensuring that the cover opening button 3 remains stable under the constraint of the printer body 2.

[0018] The bottom of the cover opening button 3 is engaged with one end of the lever 7, and the bottom of the lever 7 is engaged with the surface of the movable plate 6, so that pressing the cover opening button 3 can press down the lever 7, causing the lever 7 to rotate around the first limiting structure 8 and squeeze the movable plate 6 to move.

[0019] A spring is installed on the printer body 2 at one end of the movable plate 6, and one end of the spring presses against the movable plate 6, thereby limiting the range of motion of the lever 7.

[0020] The baffle 5 is higher on both sides, and the baffle 5 works in conjunction with the lever 7 to further restrict the range of motion of the lever 7.

[0021] The position of the cover opening button 3 is matched with the position of the printer body 2, so that the position of the cover opening button 3 can only move up and down. The spring limits the movable plate 6 and the lever 7, and the baffle 5 limits the lever 7 to ensure that the lever 7 will not move out of its original position due to the machine placement.

[0022] In summary, the handheld printer's cover-opening structure works as follows: When the printer body 2 is in use, the top cover 1 is closed, the spring moves the movable plate 6 backward, and the cover-opening button 3 is lifted, resulting in the closed state. Then, the user presses the cover-opening button 3, which presses down the lever 7. This causes the lever 7 to rotate around the bottom end of the lever 7 in the area enclosed by the first limiting structure 8, the second limiting structure 9, and the baffle 5 at point C, squeezing the movable plate 6 and causing it to move forward, thus disengaging the rubber roller 4. This is the process of opening the cover.

[0023] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handheld printer cover opening structure, comprising a printer body (2), characterized in that: The printer body (2) is equipped with a top cover (1), and a rubber roller (4) is provided on the printer body (2) and below the top cover (1). Three baffles (5) are installed on the top cover (1). A movable plate (6) is provided on the printer body (2) and between the three baffles (5). A first limiting structure (8) is provided on the printer body (2). A second limiting structure (9) is installed on the printer body (2) and on one side of the first limiting structure (8). A lever (7) is installed between the first limiting structure (8) and the second limiting structure (9). A cover opening button (3) is installed on the printer body (2).

2. The handheld printer cover opening structure according to claim 1, characterized in that: The bottom of the cover opening button (3) is engaged with one end of the lever (7), and the bottom of the lever (7) is engaged with the surface of the movable plate (6).

3. The handheld printer cover opening structure according to claim 1, characterized in that: A spring is installed on the printer body (2) at one end of the movable plate (6), and one end of the spring presses against the movable plate (6).

4. The handheld printer cover opening structure according to claim 1, characterized in that: The baffle (5) has a higher height on both sides and cooperates with the lever (7).

5. The handheld printer cover opening structure according to claim 1, characterized in that: The position of the cover opening button (3) is matched with the position of the printer body (2).

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