Novel printer uncovering rotating shaft connecting structure and printer
By adopting a combined design of cover, shaft, first housing, and second housing in the printer paper tray opening and hinge structure, the problem of easy damage to the elastic protrusion structure is solved, and the stable installation and convenient assembly of the hinge are achieved, thus improving the reliability of the printer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-03-13
AI Technical Summary
In existing printer paper tray opening hinge structures, the elastic protrusion structure is prone to damage, leading to abnormal opening.
The structure employs a combination of a cover, a rotating shaft, a first housing, and a second housing. By providing a first notch, a rotating shaft mounting groove, and a second notch on the first housing, and a first protrusion on the inner wall of the second housing, the rotating shaft can be stably installed and fixed, avoiding reliance on the elastic protrusion structure.
This design achieves stable installation of the rotating shaft, avoids abnormal opening of the cover due to damage to the elastic protrusion structure, and improves the stability and convenience of the installation structure.
Smart Images

Figure CN223989896U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printer technology, and in particular to a novel printer cover opening hinge connection structure and printer. Background Technology
[0002] For printer replacement, the paper tray of a printer typically uses a hinged opening mechanism. An example of an anti-tipping portable printer with a hinged opening mechanism is disclosed in Chinese Patent Publication No. CN210390507U. Its hinge is combined with a resilient protrusion structure; during installation, the deformation of the resilient protrusion structure achieves the installation and fixation of the hinge. If the resilient protrusion structure is damaged during use, it will lead to abnormal opening of the tray. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a novel printer cover opening and rotating shaft connection structure and a printer, wherein the novel printer cover opening and rotating shaft connection structure includes a cover, a rotating shaft, a first housing and a second housing;
[0004] A pivot is provided on one side of the cover;
[0005] The first housing has a paper compartment opening; the side wall of the paper compartment opening has a first notch; the side wall of the first notch has a rotating shaft mounting groove; the side wall of the rotating shaft mounting groove has a second notch that leads to the outer wall of the first housing.
[0006] The inner wall of the second housing is provided with a first protrusion; when the second housing is assembled with the first housing, the first protrusion and the rotating shaft mounting groove together limit the rotating shaft.
[0007] Preferably, the outer wall of the first housing below the second notch is provided with a guide groove; the guide groove leads to the bottom side wall of the rotating shaft mounting groove.
[0008] Preferably, the upper end of the first protrusion is provided with a second protrusion; during assembly, the second protrusion extends into the shaft mounting groove.
[0009] This utility model also provides a novel printer that adopts the novel printer cover opening hinge connection structure described above.
[0010] This utility model provides a novel printer cover-opening hinge connection structure. By providing a first notch, a hinge mounting groove, and a second notch on the first housing, and combining this with a first protrusion on the inner wall of the second housing, the hinge is installed and fixed. Furthermore, it eliminates the need for an elastic protrusion structure to assist in installation, thus avoiding abnormal cover opening caused by damage to the elastic protrusion structure. Compared to existing cover-opening hinge structures, the hinge installation structure provided by this utility model is more stable. Attached Figure Description
[0011] Figure 1 A cross-sectional view of the novel printer provided in an embodiment of this utility model;
[0012] Figure 2 for Figure 1 Enlarged view of section A;
[0013] Figure 3 An exploded view of the novel printer provided in this embodiment of the utility model;
[0014] Figure 4 for Figure 3 Enlarged view of section B;
[0015] Figure 5 for Figure 3 Enlarged view of section C;
[0016] Figure 6 This is a three-dimensional view of the second shell.
[0017] Figure 7 for Figure 6 Enlarged view of section D;
[0018] Wherein: 10, cover; 11, pivot; 12, connecting arm; 20, first housing; 21, paper tray opening; 22, first notch; 23, pivot mounting groove; 24, second notch; 25, guide groove; 30, second housing; 31, first protrusion; 32, second protrusion. Detailed Implementation
[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods. Unless otherwise specified, the materials and reagents used in the following embodiments can be obtained commercially.
[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] This utility model provides a novel printer cover opening hinge connection structure and printer, wherein, as shown in the figure Figure 1-7 As shown, the novel printer cover opening hinge connection structure includes a cover 10, a hinge 11, a first housing 20, and a second housing 30.
[0023] A pivot 11 is provided on one side of the cover 10; such as Figure 2 As shown, the cover 10 is connected to the rotating shaft 11 via an L-shaped connecting arm 12;
[0024] The first housing 20 is provided with a paper tray opening 21 (e.g., ...). Figure 3 (As shown); A first notch 22 is provided on the side wall of the paper tray opening 21; A shaft mounting groove 23 is provided on the side wall of the first notch 22; A second notch 24 is provided on the side wall of the shaft mounting groove 23, which leads to the outer wall of the first housing 20;
[0025] like Figure 6 , Figure 7 As shown, the inner wall of the second housing 30 is provided with a first protrusion 31; when the second housing 30 is assembled with the first housing 20, the first protrusion 31 and the rotating shaft mounting groove 23 together limit the rotating shaft 11 (as shown). Figure 1 , Figure 2 As shown, the assembly connection between the second housing 30 and the first housing 20 includes, but is not limited to, screw connection, adhesive connection, snap-fit connection, etc.
[0026] During installation, the shaft 11 enters the shaft mounting groove 23 through the second notch 24, and then the first protrusion 31 enters the second notch 24 and forms a limiting space with the shaft mounting groove 23, allowing the shaft 11 to rotate within this limiting space. Finally, the first housing 20 and the second housing 30 are assembled and fixed by screws or other means, at which point the shaft 11 can be stably limited within the limiting space formed by the shaft mounting groove 23 and the first protrusion 31.
[0027] The novel printer cover-opening hinge connection structure provided by this utility model achieves the installation and fixation of the hinge 11 by providing a first notch 22, a hinge mounting groove 23, and a second notch 24 on the first housing 20, and combining them with a first protrusion 31 provided on the inner wall of the second housing 30. Furthermore, it eliminates the need for an elastic protrusion structure to assist in installation, thereby avoiding the problem of abnormal cover opening caused by damage to the elastic protrusion structure. Compared with existing cover-opening hinge structures, the installation structure of the hinge 11 provided by this utility model is more stable.
[0028] In specific implementation, such as Figure 3 , Figure 5 As shown, the outer wall of the first housing 20 below the second notch 24 is provided with a downwardly extending guide groove 25; the guide groove 25 leads to the bottom side wall of the rotating shaft mounting groove 23. When the second housing 30 is an integral structure, when assembling the second housing 30 and the first housing 20, after installing the rotating shaft 11 in the rotating shaft mounting groove 23, the first housing 20 is placed inside the second housing 30, and the first protrusion 31 is aligned with the second notch 24. At this time, the first housing 20 is pushed towards the second housing 30, so that the first protrusion 31 enters the rotating shaft mounting groove 23 through the guide groove 25. The installation structure is simple and convenient, realizing the assembly of the integral structure of the second housing 30 and the first housing 20.
[0029] In specific implementation, such as Figure 7 As shown, the upper end of the first protrusion 31 is provided with a second protrusion 32; during assembly, the second protrusion 32 extends into the shaft mounting groove 23 (as shown). Figure 2 (As shown). In this embodiment, the structure of the second protrusion 32 allows it to engage with the rotating shaft mounting groove 23 during assembly, thereby improving the connection strength between the first housing 20 and the second housing 30.
[0030] This utility model also provides a novel printer that adopts the novel printer cover opening hinge connection structure described above.
[0031] 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 new type of printer cover opening rotary shaft connection structure, characterized in that: The printer cover hinge structure comprises a cover (10), a hinge shaft (11), a first shell (20) and a second shell (30). The cover (10) is provided with a hinge shaft (11) on one side. The first shell (20) is provided with a paper bin opening (21); the side wall of the paper bin opening (21) is provided with a first notch (22); the side wall of the first notch (22) is provided with a hinge shaft mounting groove (23); the side wall of the hinge shaft mounting groove (23) is provided with a second notch (24) leading to the outer wall of the first shell (20). The inner wall of the second shell (30) is provided with a first protrusion (31); when the second shell (30) is assembled with the first shell (20), the first protrusion (31) and the hinge shaft mounting groove (23) jointly limit the hinge shaft (11).
2. The new printer cover opening rotary shaft connection structure according to claim 1, characterized in that: The outer wall of the first shell (20) under the second notch (24) is provided with a guide groove (25); the guide groove (25) leads to the bottom side wall of the hinge shaft mounting groove (23).
3. The new printer cover opening swivel connection structure according to claim 2, characterized in that: The upper end of the first protrusion (31) is provided with a second protrusion (32); when assembled, the second protrusion (32) extends into the hinge shaft mounting groove (23).
4. A new printer characterized by: The novel printer cover hinge structure of any one of claims 1-3 is adopted.
Citation Information
Patent Citations
Portable printer capable of preventing toppling during cover opening
CN210390507U