CN211542929U - Flip device and handheld printer comprising same - Google Patents

Abstract

The utility model provides a flip device installs to hand-held type printer, and hand-held type printer includes host computer and paper storehouse, and the paper storehouse is used for depositing and beats printing paper. The flip device includes: a paper pressing roller, a turnover cover rotating shaft and a paper bin cover. The dancer roll will beat printing paper butt to the host computer on, the one end pin joint in the paper storehouse of the bottom of flip pivot, and the other end in the bottom of flip pivot is connected in the dancer roll, and the pivot of paper storehouse lid is in the top of flip pivot. The other end of the bottom of the flip rotating shaft also comprises a blocking structure for preventing printing paper extending out of the paper pressing roller from entering a space between the paper bin cover and the flip rotating shaft.

Description

Flip device and handheld printer comprising same

Technical Field

The utility model relates to a hand-held printer field especially relates to a flip device and hand-held printer including this flip device.

Background

Handheld printers are gaining wide use due to their compact, economical, durable, and more popular acceptance among users in various industries.

Fig. 1 is a partial sectional view of a conventional hand-held printer. As shown in fig. 1, a handheld printer 100 (not shown in its entirety) includes a flip device 10, and the flip device 10 includes a cover 1, a movement 2, and a paper bin 3. The cover body 1 comprises a paper bin cover 11, a flip rotating shaft 12 and a paper pressing roller 13, one end of the bottom of the flip rotating shaft 12 is pivoted on the paper bin 3, the other end of the bottom of the flip rotating shaft 12 is connected on the paper pressing roller 13, the paper bin cover 11 is pivoted on the top of the flip rotating shaft 12, and the whole paper bin cover 11 covers the whole opening of the paper bin 3. The top of the movement 2 is provided with a slot 21 and a spring 22, the bottom of the platen roller 13 is positioned in the slot 21, and the spring 22 abuts against the top of the platen roller 13. Through the rotary swing of the flip rotating shaft 12, the paper bin cover 11 opens and closes the opening of the paper bin 3, so that the printing bill can be replaced and the inside of the paper bin 3 can be maintained.

When the cover turning device 10 is opened, in fig. 1, the paper bin cover 11 covers the paper bin 3, the cover turning device can apply an upward force to the left end of the cover turning device 10 by the hand of a user, the paper bin cover 11 is pulled upwards, the right end of the paper bin cover 11 moves downwards and can abut against the elastic sheet 22, the elastic sheet 22 can be ejected and offset towards the right side after being abutted against the acting force, so that the elastic sheet 22 does not abut against the paper pressing roller 13 any more, the paper pressing roller 13 in the cover turning device 10 cannot be buckled, the user applies a certain leftward acting force to the left end of the paper bin cover 11 by the hand again, the cover turning rotating shaft 12 is turned and swung, and finally, the paper bin cover 11 is located on the left side of the paper bin 3 and is completely opened. In the flip device 10 of the conventional handheld printer, because the paper bin cover 11 and the flip rotating shaft 12 rotate relatively in the flip process, a movable gap (an area 221 surrounded by a dotted line in fig. 1) needs to be reserved in the structural design, a paper roll may be inserted into the movable gap 221 to cause a paper jam in the printing process, a solid arrow direction in fig. 1 is a normal paper discharging direction, a dotted arrow direction is an abnormal paper discharging direction, and the abnormal paper discharging direction is a paper discharging direction which may cause the paper jam. If the handheld printer is in the printing process, especially under the condition that the paper tearing of a user is uneven or printing paper is lower than the paper tearing knife, the handheld printer frequently produces the phenomenon of paper jam, and the phenomenon can cause poor user experience, easily causes damage to printer equipment, consumes more printing paper and causes a plurality of problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a flip device installs to hand-held type printer, and hand-held type printer includes host computer and paper storehouse, and the paper storehouse is used for depositing and beats printing paper. The flip device includes: a paper pressing roller, a turnover cover rotating shaft and a paper bin cover. The dancer roll will beat printing paper butt to the host computer on, the one end pin joint in the paper storehouse of the bottom of flip pivot, and the other end in the bottom of flip pivot is connected in the dancer roll, and the pivot of paper storehouse lid is in the top of flip pivot. The other end of the bottom of the flip rotating shaft also comprises a blocking structure for preventing printing paper extending out of the paper pressing roller from entering a space between the paper bin cover and the flip rotating shaft.

In an embodiment of the present invention, the top of the blocking structure is higher than the lower surface of the paper compartment cover.

In an embodiment of the present invention, the blocking structure is in clearance fit with the paper bin cover.

In an embodiment of the present invention, the gap is 0.1-0.5 mm.

In an embodiment of the present invention, the blocking structure and the flip rotating shaft are integrally formed.

In an embodiment of the present invention, the blocking structure is detachably disposed at the other end of the bottom of the flip rotating shaft.

In an embodiment of the present invention, the flip device further includes a return spring, and one end of the return spring is fixedly connected to the flip shaft.

In an embodiment of the present invention, an end of the return spring is fixed to the pivot of the flip.

In an embodiment of the present invention, the paper bin cover is further provided with a positioning rib, and the other end of the return spring is sleeved in the positioning rib.

The utility model also provides a hand-held printer, it includes the flip device in any above-mentioned embodiment.

Compared with the prior art, the utility model discloses an improve flip pivot among the prior art and the cooperation structure of paper storehouse lid: the flip pivot has increased and has blockked the structure, should block the structure and can block that the paper goes out the paper from wrong direction, greatly reduced the risk of card paper, should block also to leave certain clearance between the structure and the paper storehouse lid simultaneously, can guarantee that the paper storehouse lid can not interfere with blocking the structure at the rotation in-process that uncaps, improved user's use and experienced, reduced the equipment damage that the device card paper brought and beat the loss of beating printing paper.

Drawings

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings, wherein:

fig. 1 is a partial sectional view of a conventional hand-held printer.

Fig. 2 is an exploded view of a hand-held printer according to an embodiment of the present invention.

Fig. 3 is a partial cross-sectional view of a handheld printer in an embodiment of the invention.

Fig. 4 is a schematic view of a return spring according to an embodiment of the present invention.

Fig. 5A is a schematic view of a joint of the paper bin cover according to an embodiment of the present invention.

Fig. 5B is a schematic view of a joint of the flip hinge according to an embodiment of the present invention.

Fig. 6A is a schematic view of a joint of a front case according to an embodiment of the present invention.

Fig. 6B is a schematic view of another connection portion of the flip hinge according to an embodiment of the present invention.

Description of the reference numerals

Hand-held printer 100

Flip-open cover device 10

Cover body 1

Paper storehouse cover 11

Flip rotating shaft 12

Platen roller 13

Movement 2

Card slot 21

Spring plate 22

Movable gap 221

Paper bin 3

Hand-held printer 200

Host 210

Paper bin 220

Flip-open cover device 20

Paper pressing roller 21

Flip hinge shaft 22

Rotating shafts 221, 222

Barrier structure 223

Return spring 224

225 fixed by glue

Shafts 226, 227

Shaft holes 228, 229

Paper storehouse cover 23

Front shell 230

Shafts 230a, 230b

Positioning rib 231

Shaft holes 232, 233

Paper cutter 240

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited by the specific embodiments disclosed below.

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

In describing the embodiments of the present invention in detail, the cross-sectional views illustrating the structure of the device are not enlarged partially in a general scale for convenience of illustration, and the schematic drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

For convenience in description, spatial relational terms such as "below," "beneath," "below," "under," "over," "upper," and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that these terms of spatial relationship are intended to encompass other orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary words "below" and "beneath" can encompass both an orientation of up and down. The device may have other orientations (rotated 90 degrees or at other orientations) and the spatial relationship descriptors used herein should be interpreted accordingly. Further, it will also be understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more intervening layers may also be present.

In the context of this application, a structure described as having a first feature "on" a second feature may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed in between the first and second features, such that the first and second features may not be in direct contact.

Fig. 2 is an exploded view of a hand-held printer according to an embodiment of the present invention. The handheld printer 200 includes a flip device 20, and the flip device 20 is mounted to the handheld printer 200. The hand-held printer 200 includes a host 210 and a hopper 220. Host 210 may include some of the components of handheld printer 200, such as a circuit board, ink cartridges, and other components, which are disposed within host 210. The paper bin 220 may be disposed at an end above the main body 210. The paper bin 220 is used for storing printing paper, and in order to prevent the printing paper from rolling in the paper bin 220, at least one structure for fixing the printing paper can be arranged in the paper bin 220 and used for limiting the printing paper from moving greatly in the paper bin, so that the printing paper is prevented from being misplaced.

The flip cover device 20 includes a platen roller 21, a flip cover rotation shaft 22, and a paper compartment cover 23. The platen roller 21 is used to press the printing paper and to restrict the paper discharge direction of the printing paper. The turning cover rotating shaft 22 is used for fixing the platen roller 21, fixing and connecting the paper bin cover 23 and the paper bin 220, during the turning process of the paper bin cover 23, the turning cover rotating shaft 22 is used as a rotating shaft, and the rotating shafts on the turning cover rotating shaft 22 are at least a rotating shaft 221 and a rotating shaft 222. The connection position of the paper bin cover 23 and the turning cover rotating shaft 22 can be a rotating shaft 221, and the paper bin cover 23 can open and close relative to the printer by taking the rotating shaft 221 as an axis. The joint of the flip hinge 22 and the paper bin 220 may be a rotating shaft 222, and the flip hinge 22 may move relative to the paper bin 220 with the rotating shaft 222 as an axis. The paper bin cover 23 is used to cover the paper bin 220, the paper bin cover 23 can also be used as a component for opening the cover, and after the paper bin cover 23 is opened, a user can perform operations such as paper changing on the paper bin 220.

The other end of the bottom of the flip rotation shaft 22 further includes at least one blocking structure 223, and the blocking structure 223 is used for preventing the printing paper protruding from the platen roller 21 from entering the space between the paper chamber cover 23 and the flip rotation shaft 22, and preventing the printing paper from being jammed. In the present embodiment, the blocking structure 223 is integrally formed with the flip hinge 22. In some other embodiments, the blocking structure 223 is detachably disposed at the other end of the bottom of the flip hinge 22, and the detachable disposition may be gluing or snap-fit connection.

Fig. 3 is a partial cross-sectional view of a handheld printer in an embodiment of the invention. As shown in fig. 3, the platen roller 21 abuts the printing paper against the main unit 210, one end of the bottom of the flip rotating shaft 22 is pivoted to the paper bin 220, the other end of the bottom of the flip rotating shaft 22 is connected to the platen roller 21, and the paper bin cover 23 is pivoted to the top of the flip rotating shaft 22. The top of the blocking structure 223 at the bottom of the flip rotating shaft 22 is higher than the lower surface of the paper bin cover 23, and the structure can prevent printing paper from entering the gap between the paper bin cover 23 and the flip rotating shaft 22, thereby greatly reducing the risk of paper jam of the printing paper. The blocking structure 223 is a clearance fit with the paper bin cover 23, preferably, the clearance is 0.1-0.5 mm. This gap between the blocking structure 223 and the paper deck cover 23 can ensure that the paper deck cover 2 does not interfere with the blocking structure 223 during the uncapping rotation.

The paper bin 220 may have a front housing 230, and the front housing 230 is used to connect the paper bin 220 and the flip hinge 22. The front case 230 may be provided with at least one cutter 240, printing paper is printed out from a gap between the blocking structure 223 and the cutter 240, the cutter 240 is used to cut the printed printing paper, and the cutter 240 is generally a hard sheet having a sharp edge capable of cutting the printing paper, and may be made of metal or plastic.

Fig. 4 is a schematic view of a return spring according to an embodiment of the present invention. As shown in fig. 4, the flip cover assembly 22 may further include at least one return spring 224, and one end of the return spring 224 is fixedly connected to the flip cover rotation shaft 22. One end of the return spring 224 may be connected to the flip hinge 22 by a glue-in-place 225. The return spring 224 is connected between the flip cover rotating shaft 22 and the paper compartment cover, and the return spring 224 is used for fixing the position of the paper compartment cover and for returning the paper compartment cover to a state of completely covering the paper compartment after the paper compartment cover is rotated and opened, i.e. a state of the paper compartment cover 23 as shown in fig. 3.

Fig. 5A is a schematic view of a joint of the paper bin cover according to an embodiment of the present invention. As shown in fig. 5A, the paper compartment cover 23 is further provided with at least one positioning rib 231, and the number of the positioning ribs 231 is generally equal to the number of the return springs 224. The other end of the return spring 224 can be sleeved into the positioning rib 231 to ensure that the paper compartment cover 23 does not fall off during the use of the handheld printer 200, and to prevent the paper compartment cover 23 from being reset and failed due to the offset of the return spring 224.

Fig. 5B is a schematic view of a joint of the flip hinge according to an embodiment of the present invention. As shown in fig. 5A and 5B, the paper compartment cover 23 in fig. 5A has two shaft holes 232 and 233, and both sides of the flip cover rotation shaft 22 in fig. 5B have two shafts 226 and 227. The two shaft holes 232 and 233 of the paper compartment cover 23 are correspondingly connected with the two shafts 226 and 227 of the flip cover rotating shaft 22, and the connection of the shaft holes 232 and 233 and the shafts 226 and 227 forms the rotating shaft 221 of the flip cover rotating shaft 22 in fig. 2. Preferably, the unilateral fit clearance of the two joints is 0.05mm, and the interference amount in the X direction is 1-1.5 mm. Through the drop test of printer, test this fit clearance and the setting of interference volume and can make this junction stably connect in the use of printer, do not drop.

Fig. 6A is a schematic view of a joint of a front shell in an embodiment of the present invention, and fig. 6B is a schematic view of another joint of a flip rotating shaft in an embodiment of the present invention. As shown in fig. 6A and 6B, the front case 230 in fig. 6A has two shafts 230a and 230B, and both sides of the folder hinge 22 in fig. 6B have two shaft holes 228 and 229. The two shafts 230a and 230b of the front case 230 are correspondingly connected with the two shaft holes 228 and 229 of the flip hinge 22, and the connection of the shafts 230a and 230b and the shaft holes 228 and 229 forms the hinge 222 of the flip hinge 22 in fig. 2. Preferably, the unilateral fit clearance of the connection is 0.05mm, and the interference amount in the X direction is 1-1.5 mm. Through the drop test of printer, test this fit clearance and the setting of interference volume and can make this junction stably connect in the use of printer, do not drop.

The utility model also provides a hand-held printer, this hand-held printer include the flip device in above-mentioned arbitrary embodiment.

The utility model provides a hand-held printer through improving its flip device, has reduced printer card paper risk by a wide margin, has also reduced cost of maintenance and has beaten the paper loss, has optimized hand-held printer's user experience to having carried out the drop test through the hand-held printer to having this flip device, testing out the clearance and the interference volume of the best junction in above-mentioned embodiment, make each part of hand-held printer in above-mentioned embodiment in the use stably connect, do not drop.

This application uses specific words to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.

Although the present invention has been described with reference to the present specific embodiments, it will be understood by those skilled in the art that the above embodiments are merely illustrative of the present invention, and various equivalent changes and substitutions may be made without departing from the spirit of the present invention, and therefore, changes and modifications to the above embodiments within the spirit of the present invention will fall within the scope of the claims of the present application.

Claims (10)

1. The utility model provides a flip device, installs to hand-held printer, hand-held printer includes host computer and paper storehouse, the paper storehouse is used for depositing printing paper, its characterized in that, this flip device includes:

the printing paper is abutted to the host by the paper pressing roller, one end of the bottom of the flip rotating shaft is pivoted to the paper bin, the other end of the bottom of the flip rotating shaft is connected to the paper pressing roller, and the paper bin cover is pivoted to the top of the flip rotating shaft;

the other end of the bottom of the flip rotating shaft further comprises a blocking structure for preventing printing paper extending out of the paper pressing roller from entering a space between the paper bin cover and the flip rotating shaft.

2. The flip cover assembly according to claim 1, wherein the top of said blocking structure is higher than the lower surface of said cartridge cover.

3. A flip cover assembly according to claim 1 or 2, wherein said blocking structure is a clearance fit with said paper compartment cover.

4. A flip cover assembly according to claim 3, wherein said gap is 0.1-0.5 mm.

5. The flip cover assembly according to claim 1, wherein the blocking structure is integrally formed with the flip cover hinge.

6. The flip cover assembly according to claim 1, wherein the blocking structure is detachably provided at the other end of the bottom of the flip cover rotation shaft.

7. The flip cover assembly according to claim 1, further comprising a return spring, one end of which is fixedly connected to the flip cover rotation shaft.

8. The flip cover device according to claim 7, wherein an end of the return spring is fixed to the flip cover shaft.

9. The flip cover device according to claim 7 or 8, wherein a positioning rib is further provided on the paper bin cover, and the other end of the return spring is nested in the positioning rib.

10. A hand-held printer comprising a flip device according to any one of claims 1-9.

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