Connecting structure of upper inner cover and lower inner cover
By designing the connection structure between the upper inner cover and the lower inner cover, using a hardware steel shaft as the rotation axis, and through the coordinated positioning of the convex hull and grooves, the problems of unstable rotation center and automatic flip of the flip in the printer are solved, achieving further development Strong rotating center and higher customer experience.
Patent Information
- Application Number
- CN202421274784.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The plastic rotary center of existing printers is not firm enough, resulting in unstable rotation center, short service life, and the flip cover is easily automatically turned down due to gravity, which affects the customer experience.
Design a connection structure between the upper inner cover and the lower inner cover. By setting up an upper semicircular hole at the steel shaft position, a lower semicircular hole at the steel shaft position, an upward bone position, an inner sacral position and abscis blocking bone, a hardware steel shaft is used as the rotation axis, and The flap is prevented from automatically turning off by coordinating the hull and grooves.
It achieves a more stable rotation center and a longer service life, solves the problem of flip flip, improves customer experience, and takes into account production costs and convenience of use.
Smart Images
Figure CN222522327U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of printers, in particular to a connection structure between an upper inner cover and a lower inner cover. Background Art
[0002] Front-eject thermal printers require the upper inner cover to be connected to the lower inner cover to form a rotation center (axis + hole). The upper inner cover is rotated upward to open and the paper roll is loaded. This rotation center sometimes needs to be set at a very back position due to factors such as appearance. When it is set at a very back position, the plastic rotation center glue position will be thin and not strong enough. Therefore, a hardware steel shaft that occupies a relatively small space is required as the rotation axis. In addition, when the flap is flipped to the highest point, the flap may automatically flip down due to gravity, and the structure set on the flap (such as paper tearing blades, protruding hooks, etc.) will hit your hands. Many printers will set damping at the flap rotation position to prevent the flap from automatically flipping down, which seriously affects the customer experience.
[0003] Therefore, a connection structure between an upper inner cover and a lower inner cover is needed to solve the above technical defects. Utility Model Content
[0004] The utility model aims to provide a connection structure between an upper inner cover and a lower inner cover to solve the problem that the plastic rotation center glue position is not firm enough in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a connection structure between an upper inner cover and a lower inner cover, comprising a lower inner cover and an avoidance position, wherein the avoidance positions are arranged on both sides of the left and right sides of the tail of the lower inner cover, and an upper semicircular hole of a steel shaft position for inserting a steel shaft is arranged at the lower end of the tail of the avoidance position, and a downward inner cover bone position is arranged on one side of the upper semicircular hole of the steel shaft position, and the bottom of the inner cover bone position is semicircular, and convex hulls are arranged on the left and right side walls of the lower inner cover, and the edges of the convex hulls are large rounded corners of the convex hulls, and an upper inner cover is assembled above the lower inner cover, and the tail of the upper inner cover is a flip cover leg, and the end of the flip cover leg is arranged with a lower semicircular hole of the steel shaft position for inserting a steel shaft, and a groove is arranged on the inner wall of the flip cover leg, and the lower inner cover and the upper inner cover are assembled in the base after being combined.
[0006] Preferably, an upward bone position is also provided in the base at a semicircular position corresponding to the inner cover bone position, the top of the upward bone position is semicircular, and a bone stop is provided at one end of the semicircle.
[0007] Preferably, the flip cover leg is L-shaped as a whole.
[0008] Preferably, when the lower inner cover and the upper inner cover are assembled on the base, the upper semicircular hole at the steel shaft position and the lower semicircular hole at the steel shaft position overlap to form a rotating hole. After the steel shaft is inserted, the semicircle at the upward bone position and the semicircle at the inner cover bone position fit together to form a circle.
[0009] Preferably, the bone block supports one end of the steel shaft so that it will not fall out of the rotation hole formed by the upper semicircular hole of the steel shaft and the lower semicircular hole of the steel shaft.
[0010] Preferably, after the upper inner cover is flipped open, the large rounded corner of the convex bulge at the convex bulge falls into the groove of the inner wall of the flip cover leg to rotate in a fitting manner.
[0011] Compared with the prior art, the utility model has the following beneficial effects: the connection structure between the upper inner cover and the lower inner cover not only realizes a more stable rotation center and a longer service life, solves the problem of flipping the cover, but also achieves a balance between production cost and convenience of use;
[0012] (1) By providing a lower semicircular hole of the steel shaft, an upper semicircular hole of the steel shaft, an upward bone position, an inner cover bone position, and a retaining bone, during assembly, the lower semicircular hole of the steel shaft position on the flip cover leg of the upper inner cover is aligned with the upper semicircular hole of the steel shaft position of the lower inner cover, and then the steel shaft is inserted, and the assembled lower inner cover and upper inner cover are placed in the base, and the semicircle on the upward bone position of the base is matched with the semicircle on the inner cover bone position of the lower inner cover to form a circle together, and the other end of the steel shaft is pressed, and the semicircular retaining bone of the base can support one end of the steel shaft, so that the steel shaft will not fall out of the rotation space. In this way, a hardware rotating shaft can be used instead of a plastic shaft as a rotating part, which solves the problem of insufficient space in the rotation center, and the rotation center is more stable and has a longer service life;
[0013] (2) By providing the flip cover legs, convex bulges, large rounded corners of the convex bulges, and grooves, when the upper inner cover is rotated to open, the flip cover legs hit the convex bulges of the lower inner cover wall. Due to the limitation of the large rounded corners of the convex bulges, the flip cover legs are slightly deformed and then continue to rotate until the convex bulges fall into the grooves of the inner walls of the flip cover legs and stop rotating. Due to the shape limitation, the rear part of the flip cover legs will also hit the tail of the lower inner cover, so that it will no longer rotate. After letting go, the upper inner cover will not rotate and fall due to the interference of the convex bulges. Even when the flip cover is flipped to the highest point, the flip cover will not automatically flip down due to gravity. The convex bulge and the groove are used for positioning, which solves the flipping problem of the flip cover and improves the customer experience.
[0014] (3) By providing a lower inner cover, an upper inner cover and a base, the structure can be assembled by using only a set of hardware steel shafts as rotating shafts through the cooperation of the lower inner cover, the upper inner cover and the base, and plugging them into the rotating holes. No more screw fixings or rotating hinge structures are required, and the installation is quick and simple. The structure is stable, there are no easily broken connecting parts, modular customization, reducing the assembly process, improving the convenience of assembly and disassembly, and taking into account both production costs and ease of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the internal structure of the lower inner cover of the utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of the upper limit inner cover of the utility model;
[0017] Figure 3 This is a schematic diagram of the internal structure of the base of the utility model;
[0018] Figure 4 This is a schematic diagram of the combined structure of the upper inner cover and the lower inner cover of the utility model;
[0019] Figure 5 It is a schematic diagram of the assembly side cross-section of the utility model;
[0020] Figure 6 It is a schematic diagram of the assembled rear cross-section of the utility model;
[0021] Figure 7 This is a schematic diagram of the open cover front view structure of the utility model;
[0022] Figure 8 It is a schematic cross-sectional side view of the utility model with the cover opened.
[0023] In the figure: 1. Lower inner cover; 2. Avoidance position; 3. Inner cover bone position; 4. Upper semicircular hole of steel shaft; 5. Large rounded corner of convex hull; 6. Convex hull; 7. Upper inner cover; 8. Lower semicircular hole of steel shaft; 9. Groove; 10. Flip cover leg; 11. Base; 12. Upward bone position; 13. Bone stopper. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Example 1: Please refer to Figure 1-8A structure for connecting an upper inner cover and a lower inner cover, comprising a lower inner cover 1 and an avoidance position 2, wherein the avoidance positions 2 are arranged on both sides of the tail of the lower inner cover 1, and the lower end of the tail of the avoidance position 2 is provided with an upper semicircular hole 4 for inserting a steel shaft, and one side of the upper semicircular hole 4 for the steel shaft is provided with an inner cover bone position 3 facing downward, an upper inner cover 7 is arranged above the lower inner cover 1, and the tail of the upper inner cover 7 is a flip leg 10, and the end of the flip leg 10 is provided with a lower semicircular hole 8 for inserting a steel shaft, and the inner side wall of the flip leg 10 is provided with a groove 9, and the lower inner cover 1 and the upper inner cover 7 are assembled and assembled on the base 11, an upward bone position 12 is also provided in the base 11 at a semicircular position corresponding to the inner cover bone position 3, the top of the upward bone position 12 is semicircular, and a bone stopper 13 is provided at one end of the semicircle, when the lower inner cover 1 and the upper inner cover 7 are assembled on the base 11, the upper semicircular hole 4 of the steel shaft position and the lower semicircular hole 8 of the steel shaft position coincide with each other to form a rotating hole, after the steel shaft is inserted, the semicircle at the upward bone position 12 and the semicircle at the inner cover bone position 3 fit together to form a circle, and the bone stopper 13 supports one end of the steel shaft to prevent it from falling out of the rotating hole formed by the upper semicircular hole 4 of the steel shaft position and the lower semicircular hole 8 of the steel shaft position;
[0026] Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, during assembly, align the lower semicircular hole 8 of the steel shaft position on the flip leg 10 of the upper inner cover 7 with the upper semicircular hole 4 of the steel shaft position of the lower inner cover 1, and then insert the steel shaft, and place the assembled lower inner cover 1 and upper inner cover 7 in the base 11. The semicircle on the upward bone position 12 at the base 11 fits with the semicircle on the inner cover bone position 3 at the lower inner cover 1 to form a circle together, pressing the other end of the steel shaft, and the semicircular bone block 13 of the base 11 can support one end of the steel shaft, so that the steel shaft will not fall out of the rotation space. In this way, a hardware rotating shaft can be used instead of a plastic shaft as a rotating part, solving the problem of insufficient space at the rotation center.
[0027] Embodiment 2: The bottom of the inner cover bone 3 is semicircular, and the left and right side walls of the lower inner cover 1 are provided with convex bulges 6, and the edge of the convex bulge 6 is a convex bulge large rounded corner 5. After the upper inner cover 7 is flipped open, the convex bulge large rounded corner 5 at the convex bulge 6 falls into the groove 9 on the inner wall of the flip cover leg 10 to fit and rotate;
[0028] Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, when the upper inner cover 7 is rotated to open the cover, the flip cover leg 10 hits the convex 6 on the wall of the lower inner cover 1. Due to the limitation of the large rounded corner 5 of the convex bulge, the flip cover leg 10 is slightly deformed and then continues to rotate until the convex bulge 6 falls into the groove 9 on the inner wall of the flip cover leg 10 and stops rotating. Due to the shape limitation, the rear part of the flip cover leg 10 will also hit the tail of the lower inner cover 1, so that it will no longer rotate. After letting go, the upper inner cover 7 will not rotate and fall due to the interference of the convex bulge 6. Even when the flip cover is turned to the highest point, the flip cover will not automatically turn down due to gravity. The coordinated positioning of the convex bulge 6 and the groove 9 solves the problem of flipping the flip cover.
[0029] Embodiment 3: The flip cover leg 10 is L-shaped as a whole;
[0030] Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the structure, through the cooperation of the lower inner cover 1, the upper inner cover 7 and the base 11, only needs to use a set of hardware steel shafts as the rotating shaft, which can be assembled after being plugged into the rotating hole. No more screw fixings or rotating hinge structures are required. The installation is quick and easy, and the structure is stable, without easily broken connections, modular customization, reducing the assembly process, improving the convenience of assembly and disassembly, and taking into account both production costs and ease of use.
[0031] Working principle: During assembly, align the lower semicircular hole 8 of the steel shaft position on the flip cover leg 10 of the upper inner cover 7 with the upper semicircular hole 4 of the steel shaft position of the lower inner cover 1, and then insert the steel shaft. Place the assembled lower inner cover 1 and upper inner cover 7 in the base 11. The semicircle on the upward bone position 12 of the base 11 fits with the semicircle on the inner cover bone position 3 of the lower inner cover 1 to form a circle together, pressing the other end of the steel shaft. The semicircular bone block 13 of the base 11 can support one end of the steel shaft, so that the steel shaft will not fall out of the rotating space. When rotating When the upper inner cover 7 is turned to open the cover, the flip cover leg 10 hits the convex 6 on the wall of the lower inner cover 1. Due to the limitation of the large rounded corner 5 of the convex bulge, the flip cover leg 10 is slightly deformed and then continues to rotate until the convex bulge 6 falls into the groove 9 on the inner wall of the flip cover leg 10 and stops rotating. Due to the shape limitation, the rear part of the flip cover leg 10 will also press against the tail of the lower inner cover 1, so that it will no longer rotate. After letting go, the upper inner cover 7 will not rotate and fall due to the interference of the convex bulge 6. Even when the flip cover is turned to the highest point, the flip cover will not automatically flip down due to gravity.
[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A connection structure between an upper inner cover and a lower inner cover, comprising a lower inner cover (1) and a space avoidance (2), characterized in that: The lower inner cover (1) is provided with avoidance positions (2) on both sides of the tail, and the lower end of the tail of the avoidance position (2) is provided with a steel shaft position upper semicircular hole (4) for inserting the steel shaft, and one side of the steel shaft position upper semicircular hole (4) is provided with an inner cover bone position (3) facing downward, and the bottom of the inner cover bone position (3) is semicircular, and the left and right side walls of the lower inner cover (1) are provided with convex humps (6), and the edge of the convex humps (6) is a convex hump large rounded corner (5), and the upper inner cover (7) is assembled on the top of the lower inner cover (1), and the tail of the upper inner cover (7) is a flip cover leg (10), and the end of the flip cover leg (10) is provided with a steel shaft position lower semicircular hole (8) for inserting the steel shaft, and the inner wall of the flip cover leg (10) is provided with a groove (9), and the lower inner cover (1) and the upper inner cover (7) are assembled in the base (11) after being combined.
2. The upper inner cover and lower inner cover connection structure according to claim 1, characterized in that: An upward bone position (12) is also arranged in the base (11) at a semicircular position corresponding to the inner cover bone position (3); the top of the upward bone position (12) is semicircular, and a bone stop (13) is arranged at one end of the semicircle.
3. The upper inner cover and lower inner cover connection structure according to claim 1, characterized in that: The flip cover leg (10) is L-shaped as a whole.
4. The upper inner cover and lower inner cover connection structure according to claim 1, characterized in that: When the lower inner cover (1) and the upper inner cover (7) are assembled on the base (11), the upper semicircular hole (4) of the steel shaft and the lower semicircular hole (8) of the steel shaft overlap to form a rotating hole. After the steel shaft is inserted, the semicircle at the upper bone position (12) and the semicircle at the inner cover bone position (3) fit together to form a circle.
5. The upper inner cover and lower inner cover connection structure according to claim 2, characterized in that: The retaining bone (13) supports one end of the steel shaft so that the end will not fall out of the rotation hole formed by the upper semicircular hole (4) and the lower semicircular hole (8) of the steel shaft.
6. The upper inner cover and lower inner cover connection structure according to claim 1, characterized in that: After the upper inner cover (7) is flipped open, the large rounded corner (5) of the convex bulge (6) falls into the groove (9) on the inner wall of the flip cover leg (10) to rotate in a fitting manner.