CN110901244B

CN110901244B - Stable micro printer opens and shuts lid

Info

Publication number: CN110901244B
Application number: CN201910994712.2A
Authority: CN
Inventors: 谢发炎
Original assignee: Xiamen Miaobao Technology Co ltd
Current assignee: Beijing Baige Feichi Technology Co ltd
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2022-03-22
Anticipated expiration: 2036-12-30
Also published as: CN106827834B; CN106827834A; CN110901244A

Abstract

The invention relates to the technical field of printers, in particular to a micro printer with a stable opening and closing cover, which comprises a shell body and an upper cover, wherein the upper cover is buckled on the shell body, and the top surface of the shell body and the bottom surface of the upper cover are matched with each other; the bottom surface of the upper cover is provided with a buckling piece protruding towards the shell main body, the shell main body is correspondingly provided with a clamping groove, and the buckling piece is buckled with the clamping groove; the upper cover can be pushed back and forth relative to the shell body, when the upper cover is opened, the upper cover is pushed, and the buckling piece is separated from the clamping groove. The buckling piece enables the upper cover to be stably buckled with the shell body, protects internal parts of the shell and improves printing quality.

Description

Stable micro printer opens and shuts lid

The invention is a divisional application of Chinese patent application with application number CN201611255559.4 and application name "a mini printer with stable open and close cover" filed by the applicant to the Chinese patent office at 30.12.2016.

Technical Field

The invention relates to the technical field of printers, in particular to a micro printer with a stable opening and closing cover.

Background

A printer is one of the output devices of a computer for printing the results of a computer process on an associated medium. In recent years, the development of printers is faster and faster, and the application fields are very wide, such as automatic teller machines of banks, cash registers of supermarkets and E-commerce delivery places, which are used for printing transaction receipts, tickets or express bills and the like. A conventional micro printer generally includes a housing including a housing main body and a cover. The inside of the case is provided with a roll paper storage section for storing roll paper. The cover is rotatably attached to the housing main body and opens and closes an opening (roll paper inlet) of the roll paper storage unit. And an output port for printing paper is arranged on the cover body. Although the existing micro printer has the advantage of portability, when the printer bumps or falls down, the cover body is easy to loosen and open, so that the internal structure of the printer is damaged.

Chinese patent application number is 201620031797.6, discloses a desktop formula label printer, including lower casing group, with one end looks articulated upper cover group of lower casing group, be equipped with on the internal surface of upper cover group towards the block fastener of lower casing group, lower casing group towards inwards seted up the quad slit on the face of upper cover group, just the quad slit with the block fastener matches for the lock that cooperatees is connected upper cover group with lower casing group. The printer adopts a common clamping fastener, the upper cover and the lower shell are buckled, and the clamping fastener is single in stress. As a result, when the fastener is vibrated by beating, the fastener is easily misaligned and disengaged from the square hole.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a micro printer with a stable opening and closing cover.

In order to achieve the purpose, the invention adopts the following technical measures:

a micro printer with a stable opening and closing cover comprises a shell body and an upper cover, wherein a roll paper accommodating cavity is arranged in the shell body; the upper cover is buckled on the shell body; the top surface of the shell body and the bottom surface of the upper cover are mutually matched surfaces, the upper cover and the shell body are buckled to form a paper feeding channel, the front end of the shell body matched with the upper cover forms an output port of printing paper, and the printing paper is output from the accommodating cavity and is output from the output port after passing through the paper feeding channel in the printing process; the bottom surface of the upper cover is provided with a buckling piece protruding towards the shell main body, the shell main body is correspondingly provided with a clamping groove, the buckling piece is buckled with the clamping groove, and the upper cover can be pushed forwards and backwards relative to the shell main body; when the cover is closed, firstly, the upper cover is turned over to enable the clamping piece to extend into the clamping groove, and then the upper cover is pushed to move towards the front end, so that the clamping piece is buckled with the clamping groove; when the upper cover is opened, the upper cover is pushed backwards, the buckling piece is separated from the clamping groove, and then the upper cover is turned over.

The invention can be further perfected by the following technical measures:

as a further improvement, an elastic convex point is arranged in the clamping groove and abuts against the buckling piece towards the buckling point.

As a further improvement, the buckling piece is arranged at the position, close to the front end, of the bottom surface of the upper cover. The bottom surface of upper cover is equipped with connecting portion in the position that is close to the rear end, the upper cover pass through connecting portion with the casing main part is articulated.

As a further improvement, the connecting part comprises a first section and a second section, the second section is bent relative to the first section, the first section is vertically fixed on the bottom surface of the upper cover, and the second section is hinged with the shell body.

As a further improvement, the shell body is provided with a hinge groove, the second section is matched with the hinge groove through a rotating shaft, and the rotating shaft can move back and forth along the hinge groove.

As a further improvement, the clamping piece is integrated, the clamping piece is a clamping hook, and the elastic salient points are abutted against the rear end of the clamping hook.

As a further improvement, the fastener comprises a hook and a fixture block, the hook and the fixture block are arranged at an interval, the fixture block is located behind the hook, and the elastic salient point is pressed against the rear end of the fixture block.

As further improvement, it still includes the torsional spring, the torsional spring is buckled and is formed the orientation the bellied elasticity bump of top surface of casing main part, the groove of stepping down has been seted up to the bottom of draw-in groove, the elasticity bump is followed the groove of stepping down stretches into in the draw-in groove.

As a further improvement, a rubber roller is arranged at the position, close to the front end, of the shell body, and a printing head matched with the rubber roller is correspondingly arranged on the upper cover. And a cutting device for printing paper is arranged at the output port.

Compared with the prior art, the invention has the following advantages:

through the buckling structure of the buckling piece and the clamping groove, the buckling piece can bear the force in the vertical direction. Meanwhile, an elastic bump is arranged in the clamping groove and is abutted against the buckling part towards the buckling point, so that the buckling part can bear the force in the horizontal direction. Therefore, the buckling parts are limited in two directions, and the buckling parts are prevented from being staggered and separated from the shell body when being beaten, so that the upper cover can be stably buckled with the shell body, the internal parts of the shell are protected, and the printing quality is improved.

Drawings

FIG. 1 is a schematic view of a micro printer with stable opening and closing of the cover according to the present invention;

FIG. 2 is a schematic view of the printer of FIG. 1 with the cover open;

FIG. 3 is a schematic view taken along the line A-A in FIG. 1;

fig. 4 is an exploded view of the printer of fig. 2.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, the micro printer is similar to a camera in shape, and has an arc design around the printer, so that the whole appearance is exquisite and the structure is small. The micro printer comprises a shell body 10 and an upper cover 20, wherein the upper cover 20 is buckled on the shell body 10. The top surface 101 of the housing main body 10 and the bottom surface 201 of the upper cover 20 are mutually matched, and in the process of opening the upper cover 20, the upper cover 20 can be pushed back and forth relative to the housing main body 10. The front end of the shell body 10 matched with the upper cover 20 is provided with an output port 11, and the upper cover 20 is provided with a button 26 and a data interface 27.

Referring to fig. 2, a roll paper accommodating chamber 16 is formed in the housing body 10, the upper cover 20 is fastened to the housing body 10 to form a paper feeding path, and during printing, printing paper is fed out from the accommodating chamber 16, passes through the paper feeding path, and is fed out from the output port 11. The casing body 10 is provided with a rubber roller 12 near the front end, and the upper cover 20 is correspondingly provided with a printing head 22 matched with the rubber roller 12. A cutting device 23 for printing paper is arranged at the output port 11.

Referring to fig. 2, the bottom surface 201 of the upper cover 20 is provided with

fastening pieces

24a and 24b protruding toward the housing main body 10, the housing main body 10 is correspondingly provided with a fastening slot 14, and the

fastening pieces

24a and 24b are fastened with the fastening slot 14. The

fasteners

24a, 24b can bear vertical force by the fastening structure of the

fasteners

24a, 24b and the card slot 14.

Referring to fig. 3, an elastic bump 31 is disposed in the slot 14, and the elastic bump 31 presses the

fastening elements

24a and 24b toward the fastening portion. Meanwhile, an elastic salient point 31 is arranged in the clamping groove 14, and the elastic salient point 31 is pressed against the

buckling parts

24a and 24b towards the buckling point, so that the

buckling parts

24a and 24b can bear the force in the horizontal direction. Therefore, the

fasteners

24a and 24b are limited in two directions, and the

fasteners

24a and 24b are prevented from being staggered and disengaged from the housing main body 10 when being beaten, so that the upper cover 20 can be stably buckled with the housing body, internal parts of the housing are protected, and the printing quality is improved. The elastic bumps 31 are opposite to the direction in which the

fasteners

24a and 24b are staggered relative to the card slot 14, so as to press the

fasteners

24a and 24 b.

Referring to fig. 2, the locking device includes two

locking members

24a, 24b and two corresponding locking slots 14. The two

fasteners

24a, 24b are disposed at positions close to the front end of the upper cover 20, and the two

fasteners

24a, 24b are disposed at two sides of the bottom surface 201 of the upper cover respectively. The two card slots 14 are correspondingly formed at a position close to the front end of the housing body 10, and the two card slots 14 are respectively formed at two sides of the top surface 101 of the housing body. So that the upper cover 20 and the housing body 10 have a fastening point on both sides respectively when being matched, and have the advantages of uniform stress and good stability.

Referring to fig. 2, in the embodiment, the

fastening elements

24a and 24b have two structural forms, the first is that the fastening element 24a is an integral body, the fastening element 24a is a hook structure, and the elastic bump 31 presses against the rear end of the hook; secondly, the fastening element 24b includes a hook 241b and a block 242b, the hook 241b and the block 242b are disposed at an interval, the block 242b is located behind the hook 241b, and the elastic protrusion 31 is pressed against the rear end of the block 242 b. The buckle spare 24a of isostructure, 24b are suitable for different structural design demands, and same technological effect can be played to two kinds of structures homoenergetic, has the stable good advantage of lock.

Referring to fig. 3, preferably, a torsion spring 30 is adopted, the torsion spring 30 is bent to form an elastic protruding point 31 protruding towards the top surface 101 of the housing body 10, an abdicating groove 141 is formed at the bottom of the card slot 14, and the elastic protruding point 31 extends into the card slot 14 from the abdicating groove 141.

Referring to fig. 2, a bottom surface 201 of the upper cover 20 is provided with a connecting portion 21 near a rear end, and the upper cover 20 is hinged to the housing body 10 through the connecting portion 21, so that the upper cover 20 can be opened with respect to the housing body 10 by being turned over. After the upper cover 20 is turned over and opened, the rear end of the upper cover 20 is flush with the bottom surface of the housing body 10, so that the printer can be stably placed after the upper cover 20 is opened.

Referring to fig. 4, the connecting portion 21 includes a first section 211 and a second section 212, the second section 212 is bent relative to the first section 211, the first section 211 is vertically fixed on the bottom surface 201 of the upper cover 20, and the second section 212 is hinged to the housing body 10 through a rotating shaft 25. Preferably, the second section 212 and the first section 211 are bent at 90 °, and the upper cover 20 can be folded and opened at 90 ° relative to the housing body 10 by the action of the connecting portion 21.

Referring to fig. 4, the housing body 10 is provided with a hinge groove 13, the second section 212 is matched with the hinge groove 13 through a rotating shaft 25, and the rotating shaft 25 can move back and forth along the hinge groove 13, so as to realize the function that the upper cover 20 can be pushed back and forth relative to the housing body 10. The housing body 10 is provided at both sides thereof with chambers 15 for receiving the connection portions 21, respectively.

Referring to fig. 2 and 3, the process of closing the upper cover 20: firstly, the upper cover 20 is turned over, and the

clamping pieces

24a and 24b extend into the clamping groove 14; then, the upper cover 20 is pushed to move towards the front end, so that the

fasteners

24a and 24b are fastened with the slot 14, and the elastic bumps 31 are pressed against the rear ends of the

fasteners

24a and 24 b. When the upper cover 20 is opened, the upper cover 20 is pushed backwards at first, so that the elastic salient points 31 are separated from abutting against the buckling

pieces

24a and 24b, and the buckling

pieces

24a and 24b are separated from matching with the clamping grooves 14; the cover 20 is then folded over and opened.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A micro printer with a stable opening and closing cover comprises a shell body and an upper cover, wherein a roll paper accommodating cavity is arranged in the shell body; the method is characterized in that:

the upper cover is buckled on the shell body, the top surface of the shell body and the bottom surface of the upper cover are mutually matched surfaces, the upper cover and the shell body are buckled to form a paper feeding channel, the matched front end of the shell body and the upper cover forms an output port of printing paper, and in the printing process, the printing paper is output from the accommodating cavity and is output from the output port after passing through the paper feeding channel;

the bottom surface of the upper cover is provided with a buckling piece protruding towards the shell body, the shell body is correspondingly provided with a clamping groove, the buckling piece is buckled with the clamping groove, the upper cover can be pushed forwards and backwards relative to the shell body, when the upper cover is closed, the upper cover is firstly turned over to stretch the buckling piece into the clamping groove, then the upper cover is pushed to move towards the front end, so that the buckling piece is buckled with the clamping groove, when the upper cover is opened, the upper cover is firstly pushed backwards, the buckling piece is separated from the clamping groove, and then the upper cover is turned over; the bottom surface of the upper cover is provided with a connecting part at a position close to the rear end, and the upper cover is hinged with the shell body through the connecting part; the connecting part comprises a first section and a second section, the second section is bent relative to the first section, the first section is vertically fixed on the bottom surface of the upper cover, and the second section is hinged with the shell body; the shell body is provided with a hinge groove, the second section is matched with the hinge groove through a rotating shaft, and the rotating shaft can move back and forth along the hinge groove.

2. The cover-opening/closing stabilized micro-printer of claim 1, wherein an elastic bump is disposed in the slot, and the elastic bump is pressed against the fastener toward the fastening point.

3. The cover opening and closing stabilized micro printer according to claim 1 or 2, wherein the locking member is provided at a position near the front end of the bottom surface of the upper cover.

4. The cover-opening/closing stabilized micro-printer of claim 2, wherein the locking member is a single piece, the locking member is a hook, and the elastic protrusions are pressed against the rear end of the hook.

5. The cover-opening/closing stabilized micro printer according to claim 2, wherein the locking member comprises a hook and a locking block, the hook and the locking block are disposed at an interval, the locking block is disposed behind the hook, and the elastic protrusion abuts against a rear end of the locking block.

6. The cover opening and closing stable micro printer according to claim 2, comprising a torsion spring, wherein the torsion spring is bent to form an elastic protruding point protruding towards the top surface of the housing body, the bottom of the clamping groove is provided with a yielding groove, and the elastic protruding point extends into the clamping groove from the yielding groove.

7. The cover-opening/closing stabilized micro-printer as claimed in claim 1, wherein a rubber roller is disposed at a position close to the front end of the housing main body, the upper cover is correspondingly provided with a printing head engaged with the rubber roller, and a printing paper cutting device is disposed at the output port.