Lock cover clamping hook and printing head structure
By designing a lock cover hook and printhead structure with an unlocking mechanism and a hinged upper cover in the label printer, the problems of inconvenience in opening and closing and complex limit settings in the traditional structure are solved, and the effects of stable opening and closing and printhead limits are achieved, which improves assembly efficiency and reduces costs.
Patent Information
- Application Number
- CN202422012554.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-08-20
AI Technical Summary
The lock cover hook structure of traditional label printers is inconvenient to open and close, and the limit settings are complex, resulting in many parts and assembly steps, low efficiency and high cost.
A lock cover hook and printhead structure is designed, and a combination of a base and an unlocking mechanism is used to install components such as unlocking mechanism, hinged upper cover, reinforcement beam, rotating shaft, hook and torsion spring column inside the base to achieve stable opening and closing of the hook and limiting of the printhead.
This structure not only achieves stability in maintaining open and closed opening, but also ensures complete limiting and pressing of the print head, simplifies assembly steps, improves efficiency and reduces costs.
Smart Images
Figure CN222859071U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of label printers, in particular to a locking cover hook and a printing head structure. Background Art
[0002] The label printer can be connected to a computer, and after typesetting and graphic modification in the software, the file is transferred to the printer and then printed on the label. The back of the label may or may not have glue, and can be pasted or fixed on different objects, making it easier for people to identify and obtain information.
[0003] A label printer is usually divided into two parts: a flap and a base. The print head is installed on the flap, and the pressure roller is installed on the base. A movable hook is required between the flap and the base to fasten them together. The movable hook is usually close to the print head to reduce the deformation torque. In traditional technology, the movable hook structure is set separately and complicatedly. The print head limit is also set separately and is also quite complicated, resulting in more parts, more assembly steps, low efficiency and high cost.
[0004] Now, a novel locking cover hook and print head structure is proposed to solve the above problems. Utility Model Content
[0005] The utility model aims to provide a locking cover hook and print head structure to solve the problem of inconvenience in opening and closing mentioned in the background art.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a locking cover hook and print head structure, comprising a base and an unlocking mechanism, an unlocking mechanism is installed on the upper right side inside the base, and a pressure roller is installed between the front and back of the top of the unlocking mechanism, an upper cover is hinged between the front and back of the left side of the top of the base, and a mounting plate is assembled in the upper cover, reinforcing beams are longitudinally fixed at the front and back ends of the top of the mounting plate, and a rotating shaft is assembled between the front and back of the right side of the reinforcing beam, the front and back of the rotating shaft are respectively fixedly connected with hooks, and a second clamping position is provided at the center of the left side of the hook, a torsion spring column is movably installed at the center right of the surface of the reinforcing beam, and torsion spring arms are fixed on both sides of the torsion spring column, a groove is provided at the front end of the right side of the top of the mounting plate, and a clamping position 1 is fixed at the center of the front end of the top of the mounting plate.
[0007] Preferably, the upper cover can be swung in situ on the left side of the top of the base, and the mounting piece is snap-connected in the upper cover.
[0008] Preferably, the hook is symmetrically mounted at the front and rear ends of the rotating shaft, and a rightward curved hook is provided at the bottom of the hook.
[0009] Preferably, the right torsion spring arm of the hook is embedded in the hook, and the torsion spring arm can drive the hook to rotate together.
[0010] Preferably, a print head is clamped on the right side of the top of the mounting piece, a frustum is fixed to the front and rear ends of the print head, arc surfaces are provided on the left sides of the front and rear ends of the top of the print head, a bending wall 1 is provided on the front and rear ends of the print head, a bending wall 2 is provided on the right sides of the front and rear ends of the top of the print head, a spring is fixed at the center of the inside of the print head, and the top of the spring is fixedly connected to the upper cover.
[0011] Preferably, the upper cover can press down the mounting plate via a spring.
[0012] Compared with the prior art, the utility model has the following beneficial effects: the lock cover hook and the print head structure not only realize the stability of opening and closing, realize the position limiting of the print head, but also realize the guarantee of complete pressing of the structure;
[0013] (1) An unlocking mechanism is installed at the upper right corner of the base, a reinforcing beam is provided at one end of the upper cover near the two side surfaces, a semi-enclosed space is formed between the reinforcing beams, a hole is provided on the reinforcing beam, a hook is rotatably arranged in the hole, hooks are synchronously provided on both sides of the upper cover, the hooks are non-rotatably connected to the rotating shaft, a torsion spring column and a first latch are provided on one side of the upper cover, a torsion spring is sleeved on the torsion spring column, one end of the torsion spring is against the first latch, and the other end is against the second latch on the back of the hook, and one side of the hook mouth is pressed against the wall surface of the through hole of the upper cover;
[0014] Blocks are arranged on both sides of the second clamping position on the back of the clamping hook to limit the torsion spring column. The torsion spring is provided with two torsion spring arms. The ends of the torsion spring arms are provided with arc turns, and the arcs are convex. When the torsion spring column is opened and closed, the ends of the torsion spring arms are relatively displaced on the first clamping position. The convex arcs at the ends of the torsion spring arms are arranged to facilitate sliding, which can ensure the stable opening and closing of the printer mechanism.
[0015] (2) A groove is provided at both the front and rear ends of the right side of the top of the mounting plate, and a print head is provided in the semi-enclosed space of the reinforcing beam on the mounting plate. The print head is provided with a main wall extending laterally, and a bending wall 1 extending upward is provided on both sides of the main wall. A truncated cone is provided below one end of the bending wall 1 on both sides and protrudes outward, and an arc surface centered on the truncated cone is provided above the bending wall 1. An end of the upper edge of the bending wall 1 on both sides away from the arc surface is provided with a bending wall 2 extending outward; a groove is provided on the inner side of the reinforcing beam of the upper cover, and the truncated cone is installed in the groove. The arc surface of the bending wall 1 is just below the rotating shaft and has a small gap with the rotating shaft, and the bending wall 2 is against the top of the reinforcing beam;
[0016] When the opposite end of the print head rotates upward, the arc surface of the bending wall 1 rotates around the constant radius of the print head, and the rotating shaft does not interfere with the bending wall 1 of the print head. When the arc surface rotates to a straight edge, the bending wall 1 interferes with the rotating shaft, so that the print head is limited by the rotating shaft.
[0017] (3) The print head is clamped on the right side of the top of the mounting plate, and a spring is provided in the middle of the main wall of the print head. One end of the spring is against the main wall, and the other end is against the upper cover, so as to form pressure on the print head. The base is provided with a pressure roller. When the flip cover and the base are pressed together, the pressure roller has a reaction force on the print head, so that the print head rotates upward at an angle, and finally the two form a stable pressing, so as to realize the printing function. With the coordination relationship between the bending wall, the truncated table, the arc surface, the groove of the upper cover, and the rotating shaft, it can not only ensure that the print head has a certain rotation space when pressed together, but also prevent the print head from accidentally falling out due to excessive rotation angle. The structure is simple and the assembly efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the front three-dimensional exploded structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the front view of the three-dimensional structure of the mounting plate of the utility model;
[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the base of the utility model;
[0021] Figure 4 It is a schematic diagram of the locking structure of the unlocking mechanism of the utility model.
[0022] In the figure: 1. base; 2. unlocking mechanism; 3. pressure roller; 4. latch position 1; 5. torsion spring column; 6. hook; 7. print head; 8. upper cover; 9. mounting plate; 10. rotating shaft; 11. arc surface; 12. spring; 13. bending wall 1; 14. groove; 15. reinforcing beam; 16. torsion spring arm; 17. bending wall 2; 18. latch position 2; 19. round table. DETAILED DESCRIPTION
[0023] 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.
[0024] Example 1: Please refer to Figure 1-4, a lock cover hook and print head structure, including a base 1 and an unlocking mechanism 2, the unlocking mechanism 2 is installed at the upper right inside the base 1, and a pressure roller 3 is installed between the front and back of the top of the unlocking mechanism 2, an upper cover 8 is hinged between the front and back of the left side of the top of the base 1, and a mounting plate 9 is assembled in the upper cover 8, a reinforcing beam 15 is longitudinally fixed to the front and back ends of the top of the mounting plate 9, and a rotating shaft 10 is assembled between the front and back of the right side of the reinforcing beam 15, and the front and back of the rotating shaft 10 are respectively fixedly connected with a hook 6, a torsion spring column 5 is movably installed at the center right of the surface of the reinforcing beam 15, and torsion spring arms 16 are fixed on both sides of the torsion spring column 5, a groove 14 is provided at the front end of the top right of the mounting plate 9, the upper cover 8 can be swung in situ on the left side of the top of the base 1, and the mounting plate 9 is clamped in the upper cover 8;
[0025] The hook 6 is symmetrically mounted at the front and rear ends of the rotating shaft 10. The bottom of the hook 6 is provided with a rightward curved hook. The right torsion spring arm 16 of the hook 6 is embedded in the hook 6. The torsion spring arm 16 can drive the hook 6 to rotate together.
[0026] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, one end of the mounting plate 9 is provided with a reinforcing beam 15 near the two side surfaces, and a semi-enclosed space is formed between the reinforcing beams 15. A hole is provided on the reinforcing beam 15, and a hook 6 is rotatably arranged in the hole. Hooks 6 are synchronously provided on both sides of the upper cover 8, and the hooks 6 are non-rotatably connected to the rotating shaft 10. A torsion spring column 5 and a clamping position 1 4 are provided on one side of the upper cover 8. The torsion spring is sleeved on the torsion spring column 5, one end of the torsion spring is against the clamping position 1 4, and the other end is against the clamping position 2 18 on the back of the hook 6. One side of the mouth of the hook 6 is pressed against the wall surface of the through hole of the upper cover 8 to facilitate closing the upper cover 8.
[0027] Embodiment 2: A second latching position 18 is provided at the center of the left side of the latch hook 6, and a first latching position 4 is fixed at the center of the front and rear ends of the top of the mounting plate 9;
[0028] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a print head 7 is arranged in a semi-enclosed space of a reinforcing beam 15 of the upper cover 8, and the print head 7 is provided with a main wall extending transversely, and upwardly extending bending walls 13 are arranged on both sides of the main wall, and a frustum 19 is arranged below one end of the bending wall 13 on both sides and protrudes outward, and an arc surface 11 with the frustum 19 as the center is arranged above the bending wall 13, and an outwardly extending bending wall 2 17 is arranged at one end of the upper edge of the bending wall 13 on both sides away from the arc surface 11; a groove 14 is arranged on the inner side of the reinforcing beam 15 of the upper cover 8, and the frustum 19 is installed in the groove 14, the arc surface 11 of the bending wall 13 is just below the rotating shaft 10, and there is a small gap with the rotating shaft 10, and the bending wall 2 17 is against the top of the reinforcing beam 15.
[0029] Embodiment 3: The right side of the top of the mounting plate 9 is clamped with the print head 7, and a round table 19 is fixed to the lower left corner of the front and rear ends of the print head 7, and the left sides of the front and rear ends of the top of the print head 7 are provided with arc surfaces 11, the front and rear ends of the print head 7 are provided with bending walls 13, and the right sides of the front and rear ends of the top of the print head 7 are respectively provided with bending walls 2 17, a spring 12 is fixed at the center of the inside of the print head 7, and the top of the spring 12 is fixedly connected to the upper cover 8, and the round table 19 is symmetrically arranged at the lower left corner of the front and rear outer surfaces of the print head 7, and the upper cover 8 can press down the mounting plate 9 through the spring 12;
[0030] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a spring 12 is provided in the middle of the main wall of the print head 7, one end of the spring 12 is against the main wall, and the other end is against the upper cover 8, thereby exerting pressure on the print head 7. A pressure roller 3 is provided on the base 1. When the flip cover and the base 1 are pressed together, the pressure roller 3 exerts a reaction force on the print head 7, causing the print head 7 to rotate upward at an angle, and finally the two form a stable pressing, thereby realizing the printing function.
[0031] Working principle: When the utility model is in use, one end of the upper cover 8 is provided with a reinforcing beam 15 near the two side surfaces, and a semi-enclosed space is formed between the reinforcing beams 15. A hole is provided on the reinforcing beam 15, and the hook 6 can be rotatably set in the hole. The upper cover 8 is synchronously provided with a hook 6 on both sides, and the hook 6 is non-rotatably connected to the rotating shaft 10. A torsion spring column 5 and a clamping position 1 4 are provided on one side of the upper cover 8. The torsion spring is sleeved on the torsion spring column 5, one end of the torsion spring is against the clamping position 1 4, and the other end is against the clamping position 2 18 on the back of the hook 6. The mouth of the hook 6 is pressed against the wall surface of the through hole of the upper cover 8, and the clamping position 2 on the back of the hook 6 is pressed against the wall surface of the through hole of the upper cover 8. Blocks are arranged on both sides of 18 for limiting the torsion spring column 5. The torsion spring is provided with two torsion spring arms 16. The ends of the torsion spring arms 16 are provided with arc turns, and the arcs are convex. When the torsion spring column 5 is opened and closed, the ends of the torsion spring arms 16 are relatively displaced on the card position 4. The ends of the torsion spring arms 16 are arranged as convex arcs, which are conducive to sliding, and can ensure the stable opening and closing of the printer mechanism. The print head 7 is arranged in the semi-enclosed space of the reinforcing beam 15 of the upper cover 8. The print head 7 is provided with a main wall extending laterally. The main wall is provided with a bending wall 13 extending upward on both sides. A round table is provided below one end of the bending wall 13 on both sides. 19 and protrudes outward, an arc surface 11 with the truncated cone 19 as the center is provided above the bending wall 13, and a bending wall 2 17 extending outward is provided at one end of the upper edge of the bending wall 13 on both sides away from the arc surface 11; a groove 14 is provided on the inner side of the reinforcing beam 15 of the upper cover 8, and the truncated cone 19 is installed in the groove 14, and the arc surface 11 of the bending wall 13 is just below the rotating shaft 10 and has a small gap with the rotating shaft 10, and the bending wall 2 17 is against the top of the reinforcing beam 15, and when the opposite end of the print head 7 rotates upward, the arc surface 11 of the bending wall 13 rotates around the truncated cone 19 at a constant radius , and the rotating shaft 10 does not interfere with the bending wall 13. When the arc surface 11 rotates to the straight edge, the rotation radius begins to increase, and the bending wall 13 interferes with the rotating shaft 10, so that the print head 7 is limited by the rotating shaft 10. Because a spring 12 is provided in the middle of the main wall surface of the print head 7, one end of the spring 12 is against the main wall surface, and the other end is against the upper cover 8, forming pressure on the print head 7. The base 1 is provided with a pressure roller 3. When the flip cover and the base 1 are pressed together, the pressure roller 3 has a reaction force on the print head 7, so that the print head 7 rotates upward by an angle, and finally the two form a stable pressing, thereby realizing the printing function.
[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 locking cover hook and print head structure, comprising a base (1) and an unlocking mechanism (2), characterized in that: An unlocking mechanism (2) is installed at the upper right corner of the base (1), and a pressure roller (3) is installed between the front and rear of the top of the unlocking mechanism (2). An upper cover (8) is hinged between the front and rear of the left side of the top of the base (1), and a mounting plate (9) is installed in the upper cover (8). Reinforcement beams (15) are longitudinally fixed at both ends of the top of the mounting plate (9), and a rotating shaft (10) is assembled between the front and rear of the right side of the reinforcing beam (15). The front and rear of the rotating shaft (10) are respectively fixedly connected with a hook (6), and a second clamping position (18) is provided at the center of the left side of the hook (6). A torsion spring column (5) is movably installed at the center right of the surface of the reinforcing beam (15), and torsion spring arms (16) are fixed on both sides of the torsion spring column (5). A groove (14) is provided at the front end of the right side of the top of the mounting plate (9), and a clamping position (4) is fixed at the center of the front end of the top of the mounting plate (9).
2. The locking cover hook and print head structure according to claim 1, characterized in that: The upper cover (8) can be swung in situ on the left side of the top of the base (1), and the mounting piece (9) is snap-connected in the upper cover (8).
3. The locking cover hook and print head structure according to claim 1, characterized in that: The hook (6) is symmetrically mounted at the front and rear ends of the rotating shaft (10), and a rightward curved hook is provided at the bottom of the hook (6).
4. The locking cover hook and print head structure according to claim 1, characterized in that: The right torsion spring arm (16) of the hook (6) is embedded in the hook (6), and the torsion spring arm (16) can drive the hook (6) to rotate together.
5. The locking cover hook and print head structure according to claim 1, characterized in that: A print head (7) is clamped on the right side of the top of the mounting plate (9), a round platform (19) is fixed to the front and rear ends of the print head (7), arc surfaces (11) are arranged on the left sides of the front and rear ends of the top of the print head (7), a bending wall 1 (13) is arranged on the front and rear ends of the top of the print head (7), and a bending wall 2 (17) is arranged on the right sides of the front and rear ends of the top of the print head (7), a spring (12) is fixed at the center of the inside of the print head (7), and the top of the spring (12) is fixedly connected to the upper cover (8).
6. The locking cover hook and print head structure according to claim 5, characterized in that: The upper cover (8) can press the mounting plate (9) downwards via a spring (12).