Miniature printer with easy-to-open cover

Abstract

The utility model relates to the technical field of printers, in particular to a miniature printer with an easy-to-open cover. The miniature printer comprises a shell, a cover body, a printing assembly and a cover opening mechanism, a mounting opening is formed in the cover body, the printing assembly comprises a machine core and a rubber roller, a second clamping groove with an upward opening is formed in the machine core, the two ends of the rubber roller are clamped in the second clamping groove in the left-right direction, and the cover opening mechanism comprises a key assembly and a driving assembly. The key assembly comprises a driving rod, an elastic piece and a limiting piece, the elastic piece sleeves the driving rod, the driving rod and the elastic piece are located on the side, away from the shell, of the cover body, the limiting piece sleeves the far end of the driving rod and is located on the side, facing the shell, of the mounting opening, and the driving assembly can be driven to rotate by pressing the driving rod through the mounting opening; the rubber roller is separated from the second clamping groove, the cover body rotates relative to the shell, and therefore the function of opening the cover body is achieved, the structure is simple, the action of pressing the driving rod is simple, time and labor are saved, operation is convenient, and the experience feeling of a user in the using process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to an easy-open cover micro printer. Background Art

[0002] A printer is a device used to convert electronic data into visual output. It can print text, images and other information on computers, mobile phones or other electronic devices onto paper or other media for people to read, archive or share. With the development of technology, printers are constantly improving and the products are becoming more and more abundant. In particular, small and micro printers are favored by users because of their outstanding advantages in portability, flexibility, fast printing, high-quality output, space saving and energy efficiency.

[0003] Since the micro printer is small in size, the number of consumables such as printing paper that can be installed at one time is relatively small. Therefore, the operation of replacing consumables in a micro printer is more frequent than that in a large printer. In order to quickly open the cover of the printer when replacing consumables, a micro printer is generally designed with a special cover opening mechanism. Some existing micro printers include a housing, a cover and a cover opening mechanism. The rear side of the cover is hinged to the rear end of the housing, and the cover opening mechanism generally includes a plate, a pillar, a sled, a second card slot, a seat, a roller and other structures. Among them, the plate is a flat plate structure, and the pillar is arranged on the cover, the plate and the pillar are rotatably connected, the sled is arranged on the roller, and is coaxially arranged with the plate, a support surface is provided on the housing, the second card slot is provided on the support surface of the housing, a support portion is provided on the cover, and the roller is located in the second card slot. Here, the pillar, the sled, the second card slot, the seat, the support surface and the support portion are all arranged on the left and right sides of the housing at the same time, and the roller is simultaneously engaged with the second card slots on both sides. When the cover needs to be opened, the operator needs to rotate the plate, use the sled to disengage the roller from the second slot, and at the same time disengage the rubber roller of the printing assembly in the housing from the first slot on the housing for fixing the rubber roller. The cover opening mechanism has a complex structure, and the power arm of the pull piece and the sled structure is short, which makes the operation more laborious and easily causes damage to the plate, resulting in a short service life of the cover opening mechanism and a poor user experience.

[0004] In order to solve the above problems, it is urgent to provide an easy-open cover micro printer to solve the problems of short service life of the cover opening mechanism and poor user experience. Utility Model Content

[0005] The purpose of the utility model is to provide an easy-to-open micro-printer, which has a simple structure, avoids problems such as plate damage and the difficulty of rotating the plate, and is conducive to improving the service life of the cover. At the same time, pressing the drive rod is simple, time-saving and labor-saving, and easy to operate, which improves the user's experience during use.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] An easy-open cover micro printer, comprising:

[0008] case;

[0009] A cover body, the rear side of which is hinged to the rear end of the shell, the cover body is provided with a first card slot opening forward, and the cover body is provided with a mounting opening;

[0010] A printing assembly is arranged in the housing, the printing assembly includes a movement and a rubber roller, the movement is provided with a second card slot opening upward, two ends of the rubber roller along the left-right direction are clamped in the second card slot, and two ends of the rubber roller along the left-right direction are clamped in the first card slot;

[0011] The cover opening mechanism includes a button assembly and a driving assembly, wherein the button assembly includes a driving rod, an elastic member and a limiting member, wherein the elastic member is sleeved on the driving rod, and the driving rod and the elastic member are located on the side of the cover body away from the shell, and the limiting member is sleeved on the distal end of the driving rod and is located on the side of the mounting port facing the shell, and the mounting port presses the driving rod to drive the driving assembly to rotate, so that the rubber roller disengages from the second slot, and the cover body rotates relative to the shell.

[0012] As an optional solution, the driving rod includes:

[0013] end caps; and

[0014] The rod is connected to the end cap and is inserted into the mounting opening. The elastic member is sleeved on the rod, and two ends of the elastic member are respectively in contact with the end cap and the end surface of the mounting opening away from the shell.

[0015] As an optional solution, a groove is provided on the cover body, the installation opening is located at the bottom of the groove, the driving rod is located in the groove, and the end surface of the end cap facing away from the installation opening is coplanar with the end surface of the cover body.

[0016] As an optional solution, a mounting surface is provided on the housing, and the drive assembly includes:

[0017] A support, arranged on the mounting surface;

[0018] The driving member is rotatably connected to the support, and the driving rod can drive the driving member to rotate relative to the support, so that a part of the driving member pushes the cover body upward to open the cover body.

[0019] As an optional solution, the cover body is further provided with a convex rib, the convex rib extending from the lower end surface of the cover body in a direction away from the cover body, and the driving member can abut against the convex rib.

[0020] As an optional solution, the driving member includes:

[0021] a first driving portion, spaced apart from the mounting surface, and capable of abutting against the first driving portion when the driving rod moves downward; and

[0022] The second driving part and the first driving part are respectively located on both sides of the support. When the first driving part moves downward, the second driving part moves upward and can abut against the convex rib.

[0023] As an optional scheme, the first driving part includes a cam structure with a first diameter and a second diameter, respectively, the first diameter is larger than the second diameter, the second driving part includes a cam structure with a third diameter and a fourth diameter, respectively, the third diameter is larger than the fourth diameter, and the distance between the centers of the first diameter and the second diameter is larger than the distance between the centers of the third diameter and the fourth diameter, and one end of the first diameter of the first driving part is coaxially arranged with one end of the third diameter of the second driving part.

[0024] As an optional solution, the first driving part and the second driving part are plate-shaped structures.

[0025] As an optional solution, the button assembly is arranged on one side of the rubber roller, the driving assembly is divided into two groups, and the two groups of driving assemblies are respectively located on both sides of the rubber roller, and the cover opening mechanism further includes:

[0026] A connecting rod is connected between the two driving components.

[0027] As an optional solution, the cover opening mechanism is divided into two groups, and the two groups of cover opening mechanisms are respectively arranged on both sides of the rubber roller.

[0028] The beneficial effects of the utility model are:

[0029] The utility model provides an easy-to-open micro-printer, which comprises a shell, a cover, a printing assembly and a cover-opening mechanism. The rear side of the cover is hinged with the rear end of the shell so that the cover can rotate relative to the shell during opening or closing. The cover is provided with a first card slot opening forward, the cover is provided with a mounting port, the printing assembly is arranged in the shell, the printing assembly comprises a movement and a rubber roller, the movement is provided with a second card slot opening upward, the two ends of the rubber roller along the left and right directions are clamped in the second card slot, and the two ends of the rubber roller along the left and right directions are clamped in the first card slot, so as to realize the connection between the rubber roller and the movement. The cover-opening mechanism comprises a key assembly and a driving assembly, the key assembly comprises a driving rod, an elastic member and a limiting member, the elastic member is sleeved on the driving rod, and the driving rod and the elastic member are located on the side of the cover away from the shell, the limiting member is sleeved on the far end of the driving rod, and is located on the side of the mounting port facing the shell, the mounting port presses the driving rod to drive the driving assembly to rotate, so that the rubber roller is disengaged from the second card slot, and the cover rotates relative to the shell, thereby realizing the function of opening the cover. Compared with the prior art, the cover opening mechanism is simpler in structure, which drives the rubber roller to disengage from the second slot by rotating the plate arranged on the cover body, avoids problems such as damage to the plate and difficulty in rotating the plate, and is conducive to improving the service life of the cover body. At the same time, pressing the drive rod is simple, time-saving and labor-saving, and easy to operate, which improves the user experience during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0031] Figure 1 It is a schematic diagram of the structure of a micro printer provided by an embodiment of the utility model;

[0032] Figure 2 It is a partial structural schematic diagram of the cover body and the cover opening mechanism provided in the embodiment of the utility model;

[0033] Figure 3 It is a structural schematic diagram of a housing provided by an embodiment of the utility model;

[0034] Figure 4 It is a schematic diagram of the exploded structure of the cover body, the printing assembly and the cover opening mechanism provided in the embodiment of the utility model.

[0035] The following are marked in the figure:

[0036] 100-housing; 110-mounting surface;

[0037] 200-cover body; 210-first card slot; 220-installation port;

[0038] 300-printing assembly; 310-machine core; 311-second card slot; 320-rubber roller;

[0039] 400-opening mechanism; 410-button assembly; 411-driving rod; 4111-end cap; 4112-rod; 412-elastic member; 413-limiting member; 420-driving assembly; 421-driving member; 4211-first driving part; 4212-second driving part; 430-connecting rod. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only partial structures related to the present invention are shown in the accompanying drawings, rather than the entire structure.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it 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 the connection of the internal structures of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] like Figure 1-Figure 4 As shown, this embodiment provides an easy-open cover micro printer, which includes a housing 100, a cover 200, a printing assembly 300 and a cover opening mechanism 400. The rear side of the cover 200 is hinged to the rear end of the housing 100 so that the cover 200 can rotate relative to the housing 100 during opening or closing. The cover 200 is provided with a first card slot 210 opening forward, the cover 200 is provided with a mounting port 220, the printing assembly 300 is arranged in the housing 100, and the printing assembly 300 includes a movement 310 and a rubber roller 320, the movement 310 is provided with a second card slot 311 opening upward, the two ends of the rubber roller 320 in the left-right direction are clamped in the second card slot 311, and the two ends of the rubber roller 320 in the left-right direction are clamped in the first card slot 210, so as to realize the connection between the rubber roller 320 and the movement 310. The cover opening mechanism 400 includes a button assembly 410 and a driving assembly 420. The button assembly 410 includes a driving rod 411, an elastic member 412 and a stopper 413. The elastic member 412 is sleeved on the driving rod 411, and the driving rod 411 and the elastic member 412 are located on the side of the cover 200 away from the housing 100. The stopper 413 is sleeved on the far end of the driving rod 411 and is located on the side of the mounting opening 220 facing the housing 100. The mounting opening 220 presses the driving rod 411 to drive the driving assembly 420 to rotate, so that the rubber roller 320 is disengaged from the second slot 311, and the cover 200 rotates relative to the housing 100, thereby realizing the function of opening the cover 200. Compared with the prior art, the cover opening mechanism 400 has a simple structure in which the rubber roller 320 is disengaged from the second slot 311 by rotating the plate arranged on the cover 200, and avoids problems such as damage to the plate and difficulty in rotating the plate, which is conducive to improving the service life of the cover 200. At the same time, pressing the driving rod 411 is simple, time-saving, labor-saving and easy to operate, which improves the user experience during use.

[0045] Specifically, the driving rod 411 plays a driving role, and the elastic member 412 can drive the driving rod 411 to reset, which is convenient for the user to operate. At the same time, the installation port 220 plays a guiding role for the movement of the driving rod 411 to further improve the stability of the cover opening mechanism 400.

[0046] For further information, see Figure 4 The driving rod 411 includes an end cap 4111 and a rod portion 4112. The rod portion 4112 is connected to the end cap 4111 and is inserted into the mounting opening 220. The elastic member 412 is sleeved on the rod portion 4112, and both ends of the elastic member 412 are respectively in contact with the end cap 4111 and the end surface of the mounting opening 220 away from the housing 100, so that the limiting member 413 is used to prevent the driving rod 411 from being separated from the mounting opening 220, thereby improving the stability of the cover opening mechanism 400.

[0047] Optionally, the limiting member 413 is a spring, which has the advantages of low cost, simple structure and easy assembly.

[0048] As an optional solution, a groove is provided on the cover body 200, the installation port 220 is located at the bottom of the groove, the driving rod 411 is located in the groove, and the end surface of the end cap 4111 facing away from the installation port 220 is coplanar with the end surface of the cover body 200, which is conducive to hiding the driving rod 411 in the cover body 200, thereby improving the aesthetics of the cover body 200.

[0049] The housing 100 is provided with a mounting surface 110, and the driving assembly 420 includes a support and a driving member 421. The support is provided on the mounting surface 110, and the driving member 421 is rotatably connected to the support. The driving rod 411 can drive the driving member 421 to rotate relative to the support, so that a part of the driving member 421 pushes the cover 200 upward to open the cover 200. The driving member 421 here uses the support as an axis and uses the lever principle to drive the rubber roller 320 to disengage from the second slot 311, thereby achieving the effect of opening the cover 200.

[0050] Optionally, the cover body 200 is further provided with a convex rib, which extends from the lower end surface of the cover body 200 in a direction away from the cover body 200, and the driving member 421 can abut against the convex rib. By utilizing the downward extension height of the convex rib, the driving member 421 can contact the convex rib only by moving a small distance upward, which is conducive to reducing the movement range of the driving member 421 and saving space. At the same time, the convex rib has a simple structure, a small volume, saves materials, and is easy to process.

[0051] The driving member 421 includes a first driving portion 4211 and a second driving portion 4212. The first driving portion 4211 is spaced apart from the mounting surface 110, and the driving rod 411 can abut against the first driving portion 4211 when it moves downward, and the second driving portion 4212 and the first driving portion 4211 are respectively located on both sides of the support, and when the first driving portion 4211 moves downward, the second driving portion 4212 moves upward and can abut against the convex rib, that is, under the drive of the driving rod 411, the first driving portion 4211 and the second driving portion 4212 of the driving member 421 swing with the support as a fulcrum, and the structure is simple.

[0052] More specifically, the first driving part 4211 includes a cam structure with a first diameter and a second diameter, respectively, the first diameter is greater than the second diameter, the second driving part 4212 includes a cam structure with a third diameter and a fourth diameter, respectively, the third diameter is greater than the fourth diameter, and one end of the first diameter of the first driving part 4211 is coaxially arranged with one end of the third diameter of the second driving part 4212, so as to improve the structural strength of the driving member 421 and avoid damage. At the same time, the distance between the centers of the first diameter and the second diameter is greater than the distance between the centers of the third diameter and the fourth diameter, so as to utilize the length of the first driving part 4211 to be greater than the length of the second driving part 4212, which is conducive to improving the success rate of opening the cover body 200 and avoiding the situation in the prior art where the cover body 200 cannot be opened by gently bending the plate.

[0053] In another embodiment, the first driving part 4211 and the second driving part 4212 are plate-like structures. The plate-like structure has a simple structure and is conducive to reducing costs.

[0054] Optionally, the button assembly 410 is arranged on one side of the rubber roller 320, and the drive assembly 420 is divided into two groups, and the two groups of drive assemblies 420 are respectively located on both sides of the rubber roller 320. The cover opening mechanism 400 also includes a connecting rod 430, which is connected between the two drive assemblies 420, thereby connecting the two ends through the connecting rod 430 to simplify the structure of the cover opening mechanism 400.

[0055] In another embodiment, the cover opening mechanism 400 is divided into two groups, and the two groups of cover opening mechanisms 400 are respectively arranged on both sides of the rubber roller 320. When opening the cover body 200, the user can press the driving rods 411 on both sides at the same time, which can not only open the cover body 200, but also help to improve the success rate of the cover opening mechanism 400 in opening the cover body 200, thereby improving the working stability of the cover opening mechanism 400.

[0056] Note that the above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An easy-open cover micro printer, characterized in that: include: Housing (100); A cover body (200), the rear side of the cover body (200) being hinged to the rear end of the housing (100), the cover body (200) being provided with a first card slot (210) opening forward, and the cover body (200) being provided with a mounting opening (220); A printing assembly (300) is arranged in the housing (100), the printing assembly (300) comprising a movement (310) and a rubber roller (320), the movement (310) being provided with a second card slot (311) opening upwards, the two ends of the rubber roller (320) in the left-right direction being carded in the second card slot (311), and the two ends of the rubber roller (320) in the left-right direction being carded in the first card slot (210); The cover opening mechanism (400) comprises a key assembly (410) and a driving assembly (420). The key assembly (410) comprises a driving rod (411), an elastic member (412) and a limiting member (413). The elastic member (412) is sleeved on the driving rod (411), and the driving rod (411) and the elastic member (412) are located on a side of the cover body (200) away from the shell body (100). The limiting member (413) is sleeved on the far end of the driving rod (411) and is located on a side of the mounting opening (220) facing the shell body (100). The mounting opening (220) presses the driving rod (411) to drive the driving assembly (420) to rotate, so that the rubber roller (320) is disengaged from the second slot (311), and the cover body (200) rotates relative to the shell body (100).

2. The easy-open cover micro printer according to claim 1, characterized in that: The driving rod (411) comprises: End cap (4111); and The rod portion (4112) is connected to the end cap (4111) and is inserted into the mounting opening (220). The elastic member (412) is sleeved on the rod portion (4112), and the two ends of the elastic member (412) are respectively in contact with the end cap (4111) and the end surface of the mounting opening (220) facing away from the shell (100).

3. The easy-open cover micro printer according to claim 2, characterized in that: The cover body (200) is provided with a groove, the mounting opening (220) is located at the bottom of the groove, the driving rod (411) is located in the groove, and the end surface of the end cap (4111) facing away from the mounting opening (220) is coplanar with the end surface of the cover body (200).

4. The easy-open cover micro printer according to claim 1, characterized in that: The housing (100) is provided with a mounting surface (110), and the driving assembly (420) comprises: A support, arranged on the mounting surface (110); The driving member (421) is rotatably connected to the support, and the driving rod (411) can drive the driving member (421) to rotate relative to the support, so that a part of the driving member (421) pushes the cover body (200) upward to open the cover body (200).

5. The easy-open cover micro printer according to claim 4, characterized in that: The cover body (200) is also provided with a convex rib, the convex rib extending from the lower end surface of the cover body (200) in a direction away from the cover body (200), and the driving member (421) can abut against the convex rib.

6. The easy-open cover micro printer according to claim 5, characterized in that: The driving member (421) comprises: A first driving portion (4211) is spaced apart from the mounting surface (110), and the driving rod (411) can abut against the first driving portion (4211) when moving downward; and The second driving part (4212) and the first driving part (4211) are respectively located on both sides of the support, and when the first driving part (4211) moves downward, the second driving part (4212) moves upward and can abut against the convex rib.

7. The easy-open cover micro printer according to claim 6, characterized in that: The first driving part (4211) includes a cam structure with a first diameter and a second diameter, respectively, the first diameter is larger than the second diameter, the second driving part (4212) includes a cam structure with a third diameter and a fourth diameter, respectively, the third diameter is larger than the fourth diameter, and the distance between the centers of the first diameter and the second diameter is larger than the distance between the centers of the third diameter and the fourth diameter, and one end of the first diameter of the first driving part (4211) is coaxially arranged with one end of the third diameter of the second driving part (4212).

8. The easy-open cover micro printer according to claim 6, characterized in that: The first driving part (4211) and the second driving part (4212) are plate-shaped structures.

9. The easy-open cover micro printer according to any one of claims 1 to 8, characterized in that: The button assembly (410) is arranged on one side of the rubber roller (320), the driving assembly (420) is divided into two groups, and the two groups of driving assemblies (420) are respectively located on both sides of the rubber roller (320), and the cover opening mechanism (400) further includes: The connecting rod (430) is connected between the two driving components (420).

10. The easy-open cover micro printer according to any one of claims 1 to 8, characterized in that: The cover opening mechanism (400) is divided into two groups, and the two groups of the cover opening mechanism (400) are respectively arranged on both sides of the rubber roller (320).

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