CN214774921U

CN214774921U - Thermal printer shell and thermal printer

Info

Publication number: CN214774921U
Application number: CN202120186533.9U
Authority: CN
Inventors: 万拓; 肖广跃
Original assignee: Xiamen Jsun Intelligent Technology Co ltd
Current assignee: Xiamen Jsun Intelligent Technology Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-11-19
Anticipated expiration: 2031-01-22

Abstract

The utility model relates to a thermal printer shell, which comprises a lower shell and an upper shell, wherein the upper shell is also provided with a cover opening component, and the cover opening component comprises a key, a hook and an elastic piece; the utility model discloses a thermal printer, including casing, button slidable mounting, pothook, elastic component, bottom of casing, draw-in groove, pothook portion of keeping, the button slidable mounting is in the front end of last casing, the pothook is laid the front end of the casing left and right sides, the elastic component acts on the portion of keeping that keeps of pothook, down have on the casing with the draw-in groove that the pothook portion phase-match of pothook set up, the pothook can make under the elastic action of elastic component the pothook portion card of pothook goes into to the draw-in groove in, when the effort of applying by the front end toward rear end direction motion to the button, the button acts on the portion of keeping that keeps off of pothook to make the pothook overcome the elasticity anticlockwise rotation of elastic component, and then make the pothook portion of pothook deviate from in the draw-in groove of casing down, push away the lid inconvenient problem behind the current thermal printer in order to solve.

Description

Thermal printer shell and thermal printer

Technical Field

The utility model relates to a thermal printer field specifically relates to a thermal printer casing and thermal printer.

Background

With the popularization and application of thermal printers, thermal printing is increasingly widely used in various consumer applications. The existing thermal printer generally comprises a shell, a paper bin, a rubber roller and a thermal sensitive sheet, and is positioned at the position where printing paper is input into the rubber roller and the thermal sensitive sheet in the paper bin, and then printing is carried out to form an image. Because the thermal printer needs to replace printing paper, the cover body of the printer needs to be opened frequently, and the cover body is covered after replacement, and the thermal sensitive sheet is opposite to the rubber roller. The mode that pushes away the lid after current thermal printer all adopts usually uncaps, and the button of uncapping also sets up on last lid usually, therefore can have the button of uncapping to press not in place at the in-process of uncapping, leads to the pothook of last lid not to drop off completely, has the problem that the artificial pulling leads to the pothook to damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a thermal printer casing to push open the inconvenient problem of lid behind the solution current thermal printer.

The specific scheme is as follows:

a thermal printer shell comprises a lower shell and an upper shell, wherein the lower shell and the upper shell are hinged to enable the lower shell to be opened and closed relative to the upper shell, a cavity for containing a printing assembly is formed, and a cover opening assembly is further arranged on the upper shell and comprises a key, a clamping hook and an elastic piece; the key is arranged at the front end of the upper shell in a sliding manner, the key can slide in the front-back direction under the action of external force, the clamping hooks are arranged at the front ends of the left side and the right side of the upper shell, each clamping hook comprises a clamping hook part positioned at the upper part and a stopping part positioned at the lower part, and the middle part of each clamping hook is pivoted on the upper shell; the elastic component acts on the stopping part of the hook, applies force pushing the hook to the direction of the key to the hook, the lower shell is provided with a clamping groove matched with the hook part of the hook, the hook can enable the hook under the elastic action of the elastic component, the hook part of the hook is clamped into the clamping groove, when acting force moving from the front end to the rear end direction is applied to the key, the key acts on the stopping part of the hook, so that the elastic part of the hook is overcome by the hook, and the hook part of the hook is separated from the clamping groove of the lower shell.

Furthermore, the key is provided with a plurality of guide grooves arranged side by side, each guide groove is arranged along the front-back direction, the upper shell is provided with a plurality of guide blocks extending into the corresponding guide grooves, and the guide blocks are in clearance fit with the guide grooves, so that the guide blocks can generate a guide effect on the key in the front-back direction when the key moves.

Further, a screw is mounted on the guide block, the screw has a head portion larger than the width of the guide groove, and the screw limits the movement of the key in the up-down direction, so that the key is slidably mounted on the upper shell.

Furthermore, the upper shell is provided with a limiting groove matched with the clamping hook, the limiting groove is arranged along the front-back direction, and two sides of the clamping hook in the width direction are in clearance fit with two sides of the limiting groove in the width direction.

The utility model also provides a thermal printer, include the casing and install the thermal printer subassembly in the casing, the casing is above-mentioned arbitrary thermal printer casing.

The utility model provides a thermal printer casing compares with prior art and has following advantage: the transmission mode between the button and the hook of the thermal printer shell provided by the embodiment is connected in a sliding transmission mode, and the button and the hook are in single linkage, so that linkage failure caused by manually pulling the hook after the cover is opened is prevented.

Drawings

Fig. 1 shows a schematic view of a thermal printer housing.

Fig. 2 shows a schematic view of the upper housing.

Fig. 3 shows a schematic view of the lower housing.

Figure 4 shows a schematic view of a door release assembly.

Figure 5 shows a schematic cross-sectional view of a thermal printer housing.

Fig. 6 shows a top view of the upper housing.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

As shown in fig. 1 to 6, the present embodiment provides a thermal printer housing, which includes a lower housing 1 and an upper housing 2, the lower housing 1 and the upper housing 2 are hinged to each other, so that the lower housing 1 can be opened and closed relative to the upper housing 2, and the lower housing 1 and the upper housing 2 cooperate with each other to form a chamber for accommodating a printing assembly. In this embodiment, the rear end of the upper casing 2 has two bosses 21 disposed oppositely, each boss 21 has a shaft 22, the rear ends of the left and right sides of the lower casing 1 have a shaft hole 11 disposed in match with the shaft 22, and the shafts 22 of the upper casing 2 are inserted into the shaft holes 11 on the same side of the lower casing 1, respectively, so as to realize the hinged connection between the lower casing 1 and the upper casing 2.

The front end of the upper shell 2 is further provided with a cover opening component 3, and the cover opening component 3 comprises a key 31, two hooks 32 and two elastic pieces 33. The key 31 is slidably mounted at the front end of the upper housing 2, and the key 31 can slide in the front-back direction under the action of external force. In the present embodiment, the elastic member 33 is a spring.

The two hooks 32 are respectively disposed at the front ends of the left and right sides of the upper housing 2, each hook 32 includes a hook portion 321 located at the upper portion and a stopping portion 322 located at the lower portion, and the middle portion of the hook 32 is pivotally connected to the upper housing 2. The two elastic members 33 act on the stopping portions 322 of the two hooks 32, respectively, and apply a force to the hooks 32 to push the hooks toward the key 31, i.e., apply an elastic force to the hooks 32 to rotate clockwise.

The lower casing 1 is provided with a clamping groove 12 which is matched with the clamping hook portion 321 of the clamping hook 32 at a position corresponding to the upper part of the clamping hook 32, and the clamping hook 32 can enable the clamping hook portion 321 of the clamping hook 32 to be clamped into the clamping groove 12 under the elastic action of the elastic piece 33, so that the covering locking between the lower casing 1 and the upper casing 2 is realized. When an external force is applied to the key 31, the key 31 moves from the front end to the rear end, and the key 31 acts on the stopping portion 322 of the hook 32, so that the hook 32 overcomes the elastic force of the elastic member 33 to rotate counterclockwise, and the hook portion 321 of the hook 32 is disengaged from the slot 12 of the lower housing 1, thereby unlocking between the lower housing 1 and the upper housing 2. When the push-button 31 is released, the hook 32 and the push-button 31 are reset due to the elastic force of the elastic member 33.

The transmission mode between the key 31 and the hook 32 provided by this embodiment is a sliding transmission mode, and the two are linked in a single way, so as to prevent the failure of linkage caused by manually pulling the hook after opening the cover.

In this embodiment, referring to fig. 4 and 6, the key 31 has a plurality of guide slots 311 arranged side by side, each guide slot 311 is arranged along the front-back direction, the upper housing 2 has a plurality of guide blocks 23 extending into the corresponding guide slot 311, and the guide blocks 23 are in clearance fit with the guide slots 311, so that the guide blocks 23 can guide the key 31 in the front-back direction when the key 31 moves, and the sliding of the key 31 is more accurate.

Preferably, each guide block 23 is mounted with a screw 24, the screw 24 has a head portion larger than the width of the guide slot 311, and the screw 24 limits the movement of the key 31 in the up-down direction, thereby achieving the sliding mounting of the key 31 on the upper housing 2.

In this embodiment, referring to fig. 2, the upper housing 2 has a limiting groove 25 disposed to match with the hook 32, the limiting groove 25 is disposed along the front-back direction, and two sides of the width direction of the hook 32 are in clearance fit with two sides of the width direction of the limiting groove 25 to limit the movement of the hook 32 in the left-right direction, so that the hook 32 does not shake or has a small shaking amplitude during the rotation process, thereby ensuring the smooth rotation of the hook 32.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A thermal printer casing, includes lower casing and last casing, lower casing and last casing hinged joint make the lower casing can do the action of opening and closing with respect to last casing to form the cavity that holds printing element, its characterized in that: the upper shell is also provided with a cover opening assembly, and the cover opening assembly comprises a key, a clamping hook and an elastic piece; the key is arranged at the front end of the upper shell in a sliding manner, the key can slide in the front-back direction under the action of external force, the clamping hooks are arranged at the front ends of the left side and the right side of the upper shell, each clamping hook comprises a clamping hook part positioned at the upper part and a stopping part positioned at the lower part, and the middle part of each clamping hook is pivoted on the upper shell; the elastic component acts on the stopping part of the hook, applies force pushing the hook to the direction of the key to the hook, the lower shell is provided with a clamping groove matched with the hook part of the hook, the hook can enable the hook under the elastic action of the elastic component, the hook part of the hook is clamped into the clamping groove, when acting force moving from the front end to the rear end direction is applied to the key, the key acts on the stopping part of the hook, so that the elastic part of the hook is overcome by the hook, and the hook part of the hook is separated from the clamping groove of the lower shell.

2. A thermal printer housing according to claim 1, wherein: the key is provided with a plurality of guide grooves arranged side by side, each guide groove is arranged along the front-back direction, the upper shell is provided with a plurality of guide blocks extending into the corresponding guide grooves, and the guide blocks are in clearance fit with the guide grooves, so that the guide blocks can generate a guide effect on the key in the front-back direction when the key moves.

3. A thermal printer housing according to claim 2, wherein: the guide block is provided with a screw, the screw is provided with a head part which is larger than the width of the guide groove, and the screw limits the movement of the key in the up-down direction, so that the key is slidably arranged on the upper shell.

4. A thermal printer housing according to claim 1, wherein: the upper shell is provided with a limiting groove matched with the clamping hook, the limiting groove is arranged along the front-back direction, and two sides of the clamping hook in the width direction are in clearance fit with two sides of the limiting groove in the width direction.

5. A thermal printer comprises a shell and a thermal printing assembly arranged in the shell, and is characterized in that: the housing is a thermal printer housing according to any one of claims 1 to 4.