Embedded miniature printer

Abstract

The utility model relates to the technical field of printers, in particular to an embedded miniature printer. The embedded miniprinter comprises a fixed assembly, a movable assembly, an uncovering assembly and a locking assembly. Wherein the fixed assembly comprises a shell and a machine core, a clamping groove is formed in the shell or the machine core, the movable assembly comprises a cover body and a rubber roller which are matched in a clamping mode, the rubber roller is clamped in the clamping groove, the movable assembly is rotatably connected with the fixed assembly through a rotating shaft, and the uncovering assembly is arranged between the fixed assembly and the movable assembly. Local rotation of the uncovering assembly can drive the rubber roller to be disengaged from the clamping groove, and the locking assembly is rotationally arranged on the movable assembly and can restrain rotation of the uncovering assembly. The locking assembly can avoid small-angle rotation of the cover opening assembly when the cover body is closed, and the situation that dust easily enters a gap generated between the driving piece and the shell during use is avoided, so that the sealing effect of the cover body is improved, the dustproof effect of the embedded miniature printer is guaranteed, and the application range of the embedded miniature printer is expanded.

Description

Technical Field

[0001] This utility model relates to the field of micro printer technology, and in particular to an embedded micro printer. Background Technology

[0002] A typical embedded micro printer includes a fixed component, a movable component, and a cover-opening component. The fixed and movable components are rotatably connected by a pivot. The cover-opening mechanism is parallel to the pivot and located between the movable and fixed components. The fixed component includes a housing and a movement mechanism. The movable component includes a cover and a roller, with the roller engaging with a slot on the housing to connect the movable and fixed components. The cover-opening component includes a drive shaft, a drive protrusion, and a drive element. The drive shaft is connected to the drive element and is rotatably mounted on the cover. The drive protrusion is connected to the drive element, and the drive element drives the drive shaft to rotate a preset angle. A portion of the drive protrusion abuts against a portion of the fixed component, causing the roller to disengage from the slot and open the cover.

[0003] However, when the cover of the aforementioned embedded micro printer is closed, the drive component located on the outside of the cover has a free angle and space to move, allowing it to rotate without external force. This creates a gap between the drive component and the cover, and this gap connects the paper tray inside the cover to the external environment, making it easier for dust to enter the paper tray. This gap prevents the embedded micro printer from being used in fields with strict dust prevention requirements.

[0004] To solve the above problems, there is an urgent need to provide an embedded micro printer. Utility Model Content

[0005] The purpose of this invention is to propose an embedded micro printer that avoids the small-angle rotation of the cover opening component when the cover is closed, thus preventing dust from easily entering through the gap between the drive component and the housing during use. This improves the sealing effect of the cover, helps ensure the dustproof effect of the embedded micro printer, and expands its application range.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An embedded micro printer includes:

[0008] A fixing component includes a housing and a movement, wherein the housing or the movement is provided with a slot;

[0009] The movable component includes a cover and a rubber roller that snap together, the rubber roller being snapped into the slot, and the movable component being rotatably connected to the fixed component via a rotating shaft parallel to the rubber roller.

[0010] A cover-opening assembly, disposed between the fixed assembly and the movable assembly, wherein partial rotation of the cover-opening assembly can drive the rubber roller to disengage from the slot; and

[0011] A locking component is rotatably mounted on the movable component, and the locking component is capable of restricting the rotation of the cover opening component.

[0012] As an optional solution, the cover body is provided with a mounting hole, and the locking component is rotatably inserted through the mounting hole, so that the locking component can switch between a first position and a second position. When the locking component is in the first position, the locking component can restrict the rotation of the cover opening component. When the locking component is in the second position, the locking component releases the restriction on the cover opening component, and the cover opening component can rotate to drive the rotating shaft to disengage from the slot.

[0013] As an optional embodiment, the locking component includes:

[0014] The locking shaft passes through the mounting hole; and

[0015] A locking member is connected to one end of the locking shaft located on the inner side of the cover, and the locking member protrudes from the side wall of the locking shaft. When the locking assembly is in the first position, the locking member partially abuts against the cover opening assembly.

[0016] As an optional embodiment, the locking shaft includes:

[0017] The shaft is connected to the locking element; and

[0018] A limiting protrusion is provided at one end of the shaft away from the locking member, and the limiting protrusion can abut against the outer side of the cover.

[0019] As an alternative, the mounting hole is a stepped hole, and a limiting platform is provided on the stepped hole, which is used to abut against the limiting protrusion.

[0020] As an optional solution, the locking element includes:

[0021] The first limiting part, when the locking component is in the first position, partially abuts against the opening component;

[0022] The second limiting part is connected at an angle to the first limiting part. When the locking component rotates to the second position to the maximum angle, the second limiting part can abut against the fixing component.

[0023] As an alternative, the locking component has a drive groove on the end face of the outer side of the cover.

[0024] As an alternative, the drive slot can be in the shape of a straight line, a cross, a hexagon, or a polygon.

[0025] As an optional solution, the lid opening assembly includes:

[0026] Drive components;

[0027] A drive shaft is connected to the drive component, and the drive shaft is rotatably mounted on the cover.

[0028] A drive protrusion is connected to the drive component, which drives the drive shaft to rotate by a preset angle. A portion of the drive protrusion can abut against a portion of the fixing component to drive the rubber roller to disengage from the slot.

[0029] As an alternative, when the locking component is in a position that restricts the rotation of the cover opening component, the locking component abuts against the driving protrusion.

[0030] The beneficial effects of this utility model are as follows:

[0031] This utility model provides an embedded micro printer, which includes a fixed component, a movable component, a cover-opening component, and a locking component. The fixed component includes a housing and a mechanism, with a slot on the housing or mechanism. The movable component includes a cover and a rubber roller that engage with each other, with the rubber roller engaged in the slot. The movable component is rotatably connected to the fixed component via a rotating shaft parallel to the rubber roller. The cover-opening component is positioned between the fixed component and the movable component. Partial rotation of the cover-opening component can drive the rubber roller out of the slot. The locking component is rotatably mounted on the movable component and restrains the rotation of the cover-opening component. The locking component prevents small-angle rotation of the cover-opening component when the cover is closed, avoiding gaps between the drive component and the housing that could allow dust to enter, thus improving the cover's sealing effect and ensuring the dustproof performance of the embedded micro printer, thereby expanding its application range. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of the embedded micro printer provided in Embodiment 1 of this utility model;

[0034] Figure 2 This is a cross-sectional structural diagram of the embedded micro printer provided in Embodiment 1 of this utility model;

[0035] Figure 3 This is a schematic diagram of the opening assembly provided in Embodiment 1 of this utility model;

[0036] Figure 4 yes Figure 2 A magnified view of a section at point A in the middle;

[0037] Figure 5 This is a schematic diagram of the locking component provided in Embodiment 1 of this utility model;

[0038] Figure 6 This is a schematic diagram of the assembly cross-sectional structure of the locking component provided in Embodiment 2 of this utility model;

[0039] Figure 7 This is a schematic diagram of the locking assembly provided in Embodiment 2 of this utility model;

[0040] Figure 8 This is a schematic diagram of the locking component provided in Embodiment 3 of this utility model.

[0041] The markings in the image are as follows:

[0042] 100 - Fixed component; 110 - Housing; 111 - Card slot; 120 - Movement;

[0043] 200 - Movable component; 210 - Cover; 220 - Glue roller;

[0044] 300 - Opening assembly; 310 - Drive component; 320 - Drive shaft; 330 - Drive protrusion;

[0045] 400-Locking assembly; 410-Locking shaft; 411-Shaft body; 4111-Drive groove; 412-Limiting protrusion ring; 420-Locking element; 421-First limiting part; 422-Second limiting part. Detailed Implementation

[0046] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only partial structures relevant to the present invention, not the complete structure.

[0047] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 connection of the internal structures of two components or the interaction between 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.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 only used for distinction in description and have no special meaning.

[0050] like Figure 1 and Figure 2As shown, this embodiment provides an embedded micro printer, which includes a fixed component 100 and a movable component 200. The fixed component 100 includes a housing 110 and a mechanism 120 connected to each other, and the housing 110 has a paper tray for accommodating paper rolls. The housing 110 or the mechanism 120 has a slot 111. The movable component 200 includes a cover 210 and a rubber roller 220. The cover 210 engages with the rubber roller 220, which is engaged in the slot 111. The cover 210 and the fixed component 100 are rotatably connected via a rotating shaft parallel to the rubber roller 220. The embedded micro printer connects the movable component 200 to the fixed component 100 by engaging the rubber roller 220 with the slot 111. Since the paper roll is a consumable, when the paper roll is depleted, the cover 210 needs to be opened to insert a new paper roll. When opening the cover 210, the rubber roller 220 needs to be disengaged from the slot 111, allowing the cover 210 to rotate relative to the fixing assembly 100, thus opening the paper tray and allowing the paper roll to be removed for replacement. Of course, to make the rubber roller 220 more stable in the slot 111 and prevent it from slipping out, a retaining spring can also be installed on the slot 111 to secure the rubber roller 220.

[0051] To open the cover 210, the embedded micro printer also includes a cover opening assembly 300. The cover opening assembly 300 is disposed between the fixed assembly 100 and the movable assembly 200, and partial rotation of the cover opening assembly 300 can drive the rubber roller 220 to disengage from the slot 111.

[0052] Specifically, please see Figure 3 The cover opening assembly 300 includes a driving member 310, a driving shaft 320, and a driving protrusion 330. The driving shaft 320 is connected to the driving member 310 and is rotatably mounted on the cover 210. The driving protrusion 330 is connected to the driving member 310. The driving member 310 drives the driving shaft 320 to rotate by a preset angle. A portion of the driving protrusion 330 can abut against a portion of the fixing assembly 100 to drive the rubber roller 220 out of the slot 111. The driving protrusion 330 can be located at any position along the axis of the driving shaft 320, and the driving member 310 is located on the cover 210. When the cover 210 needs to be opened, the operator manually adjusts the angle of the drive component 310, which drives the drive shaft 320 to rotate, thereby driving the drive protrusion 330 to rotate, so that the far end of the drive protrusion 330 abuts against the fixed component 100. At this time, the drive component 310, the drive shaft 320 and the drive protrusion 330 form a lever. According to the lever principle, the cover opening component 300 uses the reaction force of the drive protrusion 330 abutting against the fixed component 100 to make the rubber roller 220 disengage from the slot 111.

[0053] Furthermore, the embedded micro printer is installed in vending machines, POS terminals, medical equipment, logistics and transportation systems, and other devices. During use, a mounting port is provided on the device to which the embedded micro printer will be installed, and the printer is installed through this port. After assembly, the cover 210 of the embedded micro printer is located outside the mounting port. At this time, the drive component 310 of the cover opening assembly 300 is located outside the cover 210, and both the drive shaft 320 and the drive protrusion 330 can be hidden inside the cover 210.

[0054] In practical applications, to make it easier for the operator, when the cover 210 is closed, the driving protrusion 330 is positioned a certain distance from the surface of the fixing component 100 it can abut against, so that the driving protrusion 330 can only abut against the fixing component 100 after rotating a certain angle. This structure results in the driving component 310 located outside the cover 210 having a free angle and space when the cover 210 is closed, allowing the driving component 310 to rotate without external force. A gap is formed between the driving component 310 and the cover 210, and this gap connects the paper tray inside the cover 210 with the external environment, making it easier for dust to enter the paper tray. This gap prevents embedded micro printers from being used in fields with strict dust prevention requirements.

[0055] To address the dust prevention issue of embedded micro printers, please refer to [link / reference]. Figure 1 , Figure 2 as well as Figure 4 The embedded micro printer in this embodiment also includes a locking component 400, which is rotatably mounted on the movable component 200 and can restrain the rotation of the cover opening component 300.

[0056] The locking component 400 can prevent the opening component 300 from rotating at a small angle when the cover 210 is closed, and prevent dust from easily entering through the gap between the drive component 310 and the housing 110 during use, thereby improving the sealing effect of the cover 210, which is beneficial to ensuring the dustproof effect of the embedded micro printer and expanding its application range.

[0057] Now combined Figure 1 , Figure 2 , Figure 4 as well as Figure 5 The detailed structure of the locking assembly 400 is described below.

[0058] As an optional solution, to facilitate operation of the locking component 400 from outside the cover 210, the cover 210 is provided with a mounting hole. The locking component 400 is rotatably inserted into the mounting hole, allowing it to switch between a first position and a second position. When the locking component 400 is in the first position, it restricts the rotation of the cover opening component 300. When the locking component 400 is in the second position, it releases the restriction on the cover opening component 300, allowing it to rotate and drive the rotating shaft to disengage from the slot 111. This locking component 400 allows for direct operation of its position from outside the cover 210. Specifically, when the embedded micro printer is in use, the locking component 400 is adjusted to the first position. When it is necessary to open the cover 210, the operator rotates the locking component 400 from the first position to the second position, and then operates the cover opening component 300 to open the cover 210 for easy paper roll replacement.

[0059] Because the opening assembly 300 allows the operator to open the cover 210 without external tools, the stability and reliability of the cover 210's closure are reduced. To address this issue, the locking assembly 400 has a drive groove 4111 on its outer end face of the cover 210. The operator can use a tool to rotate the locking assembly 400 in conjunction with the drive groove 4111, allowing the locking assembly 400 to switch back and forth between a first position and a second position. This structure prevents the operator from directly opening the opening assembly 300 by hand; instead, the operator must use a tool to adjust the position of the locking assembly 400 before operating the opening assembly 300 to open the paper tray, thus improving the stability and reliability of the cover 210's closure.

[0060] Optionally, the drive groove 4111 can be straight, cross-shaped, hexagonal, or polygonal. When the drive groove 4111 is straight or cross-shaped, the operator can rotate the drive assembly using only a screwdriver. When the drive groove 4111 is hexagonal, the operator can use a hex wrench to rotate the drive assembly. Of course, to further improve safety, the structure of the drive groove 4111 can be a custom-designed special structure, i.e., an arbitrary polygonal structure, and tools compatible with this drive groove 4111 structure can be developed to adjust the locking assembly 400.

[0061] As an optional solution, the locking assembly 400 includes a locking shaft 410 and a locking member 420. The locking shaft 410 passes through a mounting hole, and the locking member 420 is connected to one end of the locking shaft 410 located on the inner side of the cover 210, with the locking member 420 protruding from the side wall of the locking shaft 410. When the locking assembly 400 is in the first position, the locking member 420 partially abuts against the cover opening assembly 300. Specifically, the locking member 420 abuts against the end face of the driving protrusion 330 of the cover opening assembly 300, preventing the driving member 310 from rotating by preventing the driving protrusion 330 from rotating. This locking assembly 400 has a simple structure, which helps to reduce costs.

[0062] In one embodiment, since there is a gap between the drive protrusion 330 and the fixing component 100 when the embedded micro printer is in use, the locking member 420 is located in the gap between the limiting protrusion and the fixing component 100 when it is in the first position. At this time, the fixing component 100 can also constrain the position of the locking component 400 along its locking shaft 410 axial direction. Optionally, the locking shaft 410 and the locking member 420 are integral structures. The cover 210 includes an inner side facing the paper tray and an outer side facing away from the paper tray. The locking component 400 can be directly installed through the mounting hole from the inner side of the cover 210. When the locking member 420 of the locking component 400 abuts against the drive protrusion 330, the fixing component 100 can constrain the displacement of the locking component 400 along its axis to achieve the purpose of limiting.

[0063] Specifically, the dimension of the locking member 420 along the axis of the locking shaft 410 is at least partially smaller than the dimension of the gap between the driving protrusion 330 and the fixing assembly 100, so that the locking member 420 can lock the rotation of the driving protrusion 330.

[0064] Example 2

[0065] This embodiment provides an embedded micro printer, which differs from Embodiment 1 in the structure of the locking component 400. Only the differences between Embodiment 2 and Embodiment 1 will be described here.

[0066] like Figure 6 and Figure 7 As shown, the locking shaft 410 includes a shaft body 411 and a limiting protrusion 412. The shaft body 411 is connected to the locking member 420, and the limiting protrusion 412 is located at the end of the shaft body 411 facing away from the locking member 420. The limiting protrusion 412 can abut against the outer surface of the cover 210, thereby preventing the locking shaft 410 from falling out of the mounting hole into the paper tray, which helps to ensure the safety and stability of the structure.

[0067] In the above structure, the locking shaft 410 and the locking element 420 and / or the shaft body 411 and the limiting protrusion ring 412 are separate structures. The locking shaft 410 and the locking element 420, and the shaft body 411 and the limiting protrusion ring 412 are detachable threaded connections, or they can be fixed connections such as welding or riveting. This embodiment does not limit this.

[0068] Furthermore, the mounting hole is a stepped hole, and a limiting platform is provided on the stepped hole. The limiting platform is used to abut against the limiting protrusion 412 to prevent the limiting protrusion 412 from protruding out of the cover body 210, which helps to improve the overall aesthetics of the embedded micro printer.

[0069] Example 3

[0070] This embodiment provides an embedded micro printer, which differs from Embodiment 1 in the structure of the locking component 400. Only the differences between Embodiment 3 and Embodiment 1 will be described here.

[0071] Please see Figure 8 The locking member 420 includes a first limiting part 421 and a second limiting part 422. When the locking assembly 400 is in the first position, the first limiting part 421 partially abuts against the cover opening assembly 300, specifically against the drive protrusion 330, to prevent the drive member 310 from rotating and forming a gap between the drive member 310 and the cover 210. The second limiting part 422 is connected to the first limiting part at an angle. When the locking assembly 400 rotates to the second position to its maximum angle, the second limiting part 422 abuts against the fixing assembly 100, thereby constraining the maximum angle of rotation of the locking member 420. Since the locking member 420 is located inside the cover 210 during use, the operator cannot directly see where the locking member 420 has rotated to. The abutment of the second limiting part 422 against the fixing assembly 100 allows the operator to understand that the first limiting part 421 has released its restriction on the drive protrusion 330, thus enabling further operation.

[0072] Note that the above description illustrates and describes the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of the claimed utility model, which is defined by the appended claims and their equivalents.

Claims

1. An embedded micro printer, characterized in that, include: The fixing assembly (100) includes a housing (110) and a movement (120), wherein the housing (110) or the movement (120) is provided with a slot (111); The movable component (200) includes a cover (210) and a rubber roller (220) that engage with each other. The rubber roller (220) is engaged in the slot (111). The movable component (200) is rotatably connected to the fixed component (100) via a rotating shaft that is parallel to the rubber roller (220). A cover opening assembly (300) is disposed between the fixed assembly (100) and the movable assembly (200), and a partial rotation of the cover opening assembly (300) can drive the rubber roller (220) to disengage from the slot (111); as well as A locking component (400) is rotatably disposed on the movable component (200), and the locking component (400) is capable of restraining the opening component (300) from rotating.

2. The embedded micro printer according to claim 1, characterized in that, The cover (210) is provided with a mounting hole, and the locking component (400) is rotatably inserted through the mounting hole, so that the locking component (400) can switch between a first position and a second position. When the locking component (400) is in the first position, the locking component (400) can constrain the opening component (300) to rotate. When the locking component (400) is in the second position, the locking component (400) releases the restriction on the opening component (300), and the opening component (300) can rotate to drive the rotating shaft to disengage from the slot (111).

3. The embedded micro printer according to claim 2, characterized in that, The locking assembly (400) includes: A locking shaft (410) passes through the mounting hole; and The locking member (420) is connected to one end of the locking shaft (410) located on the inner side of the cover (210), and the locking member (420) protrudes from the side wall of the locking shaft (410). When the locking assembly (400) is in the first position, the locking member (420) partially abuts against the cover opening assembly (300).

4. The embedded micro printer according to claim 3, characterized in that, The locking shaft (410) includes: Shaft (411), connected to the locking member (420); and A limiting protrusion (412) is disposed at one end of the shaft (411) away from the locking member (420), and the limiting protrusion (412) can abut against the outer side of the cover (210).

5. The embedded micro printer according to claim 4, characterized in that, The mounting hole is a stepped hole, and a limiting platform is provided on the stepped hole. The limiting platform is used to abut against the limiting protrusion (412).

6. The embedded micro printer according to claim 3, characterized in that, The locking element (420) includes: The first limiting part (421) abuts against the opening assembly (300) when the locking assembly (400) is in the first position. The second limiting part (422) is connected at an angle to the first limiting part. When the locking component (400) rotates to the second position to the maximum angle, the second limiting part (422) can abut against the fixing component (100).

7. The embedded micro printer according to claim 1, characterized in that, The locking assembly (400) has a drive groove (4111) on the end face of the outer side of the cover (210).

8. The embedded micro printer according to claim 7, characterized in that, The drive slot (4111) can be in the shape of a straight line, a cross, a hexagon, or a polygon.

9. The embedded micro printer according to any one of claims 1-8, characterized in that, The opening assembly (300) includes: Drive unit (310); A drive shaft (320) is connected to the drive member (310), and the drive shaft (320) is rotatably mounted on the cover (210); A drive protrusion (330) is connected to the drive member (310), the drive member (310) drives the drive shaft (320) to rotate by a preset angle, and a portion of the drive protrusion (330) can abut against a portion of the fixing component (100) to drive the rubber roller (220) to disengage from the slot (111).

10. The embedded micro printer according to claim 9, characterized in that, When the locking component (400) is in a position that restricts the rotation of the cover opening component (300), the locking component (400) abuts against the drive protrusion (330).

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