Thermal printer capable of improving supporting force of cover body

Abstract

The utility model provides a thermal printer capable of improving support force of a cover body, which comprises a shell, a base, the cover body, a main control circuit board, a rubber roller and a thermosensitive sheet, the rubber roller is arranged along the width direction and is rotatably arranged on the cover body, the thermosensitive sheet is arranged on the shell, the thermosensitive sheet and the rubber roller are opposite to each other and form a paper feeding channel, the shell is provided with a paper bin and a device assembling bin, and the paper bin is arranged on the base. The paper bin is opened upwards, the device assembling bin is opened downwards, and the main control circuit board is installed in the device assembling bin; the base comprises a bottom plate extending horizontally and a longitudinal plate extending vertically, the longitudinal plate is connected to the end, in the length direction, of the bottom plate, a supporting column is arranged at the upper end of the longitudinal plate, the cover is hinged to the supporting column, the bottom plate covers the device assembly bin, the longitudinal plate is located at the rear end, in the length direction, of the paper bin, and the cover covers the paper bin. According to the scheme, by means of step-by-step assembly of devices, the efficiency of the assembly process can be improved, and due to the fact that the cover body is hinged to the longitudinal plate, the stability of the cover body during rotation is improved, and the supporting force on the cover body is also improved.

Description

Technical Field

[0001] The utility model relates to the field of thermal printing, in particular to a thermal printer capable of improving the supporting force of a cover body. Background Art

[0002] With the popularization of thermal printers, they are used in bank ATMs, supermarket cash registers, e-commerce delivery offices, restaurants or kitchens, etc. When the printing paper is exhausted, the cover needs to be opened for replacement. Therefore, the stability of the opening and closing of the cover affects the operating stability of the printer.

[0003] The existing cover is generally assembled on the outer shell, but because the outer shell needs to be assembled with many components such as thermistor, main control circuit board, motor, etc. in addition to the cover, too many components are assembled on the outer shell, affecting the assembly efficiency, and the support force of the cover is insufficient, which easily causes the body to shake when the cover is opened. Utility Model Content

[0004] The utility model aims to provide a thermal printer with improved cover supporting force.

[0005] In order to achieve the purpose of the utility model, the utility model provides a thermal printer with improved cover support force, including a shell, a base, a cover body, a main control circuit board, a rubber roller and a thermal sheet, the rubber roller is arranged along the width direction and rotatably set on the cover body, the thermal sheet is set on the shell, the thermal sheet and the rubber roller are opposite to each other and form a paper feeding channel, the shell is provided with a paper bin and a device assembly bin, the paper bin opens upward, the device assembly bin opens downward, and the main control circuit board is installed in the device assembly bin; the base includes a bottom plate extending horizontally and a longitudinal plate extending vertically, the longitudinal plate is connected to the end of the bottom plate based on the length direction, the upper end of the longitudinal plate is provided with a support column, the cover body is hinged to the support column, the bottom plate covers the outside of the device assembly bin, the longitudinal plate is located at the rear end of the paper bin based on the length direction, and the cover body covers the top of the paper bin.

[0006] A further solution is that two supporting columns are provided at the upper end of the longitudinal plate, the two supporting columns are distributed along the width direction, and the supporting columns are provided with hinge columns outwardly along the width direction; the cover body is provided with cover side walls on both sides in the width direction, and the inner wall of the cover side wall is provided with hinge holes, one side of the hinge column is connected to the hinge hole on the same side, and the cover side wall is located on the outside of the hinge column.

[0007] A further solution is that the thermal printer further comprises two torsion springs, one of which is sleeved outside the hinge column, the first end of the torsion spring abuts against the upper end of the longitudinal plate, and the second end of the torsion spring abuts against the cover body.

[0008] A further solution is that the shell includes a left wall, a right wall and a front wall, which form a device assembly compartment. The left wall is located on the left side of the bottom plate and the longitudinal plate based on the width direction, the right wall is located on the right side of the bottom plate and the longitudinal plate based on the width direction, and the longitudinal plate is located on the rear side of the front wall based on the length direction.

[0009] A further solution is that when the cover body is in a closed state, the two cover side walls and the two support columns are located between the left wall and the right wall.

[0010] A further solution is that the main control circuit board is installed in the device assembly compartment along the vertical direction, and the main control circuit board is close to the front side of the housing based on the length direction.

[0011] The beneficial effect of the utility model is that the cover body is hinged to the upper part of the longitudinal plate of the base, and the main control circuit board is installed in the device assembly compartment. The step-by-step assembly of the device can improve the efficiency of the assembly process, and because the cover body is hinged to the longitudinal plate, the stability of the cover body when rotating is improved, and the support force of the cover body is also improved. Furthermore, the hinged column facing outward and the hinged hole facing inward are used, the hinged position is shielded by the side wall of the cover, and the left wall and the right wall are used to shield the bottom plate and the longitudinal plate, so as to effectively improve the integrity of the printer body. In addition, the main control circuit board is installed on the front side of the shell in the vertical direction, and the cover body is assembled on the rear side of the shell, so the space utilization rate of the shell can be improved, and the assembly efficiency is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of an embodiment of a thermal printer of the utility model.

[0013] Figure 2 It is a structural diagram of the thermal printer embodiment of the utility model after the cover is opened.

[0014] Figure 3 It is an assembly structure diagram of a base and a cover body in an embodiment of the thermal printer of the utility model.

[0015] Figure 4 It is a structural diagram of a base and a cover in an embodiment of a thermal printer of the utility model.

[0016] Figure 5 It is an exploded view of the base and the cover in the embodiment of the thermal printer of the utility model.

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0018] Reference Figures 1 to 5The thermal printer includes a shell 12, a base 13, a cover body 11, a main control circuit board 22, a rubber roller 21, two torsion springs 135 and a thermal sheet. The rubber roller 21 and the thermal sheet are arranged along the width direction Y. The rubber roller 21 is arranged along the width direction Y and is rotatably arranged on the cover body 11. The thermal sheet is arranged on the shell 12. The thermal sheet and the rubber roller 21 are opposite to each other and form a paper feeding channel. A paper outlet 20 is arranged at the front side of the paper feeding channel. The paper outlet 20 is arranged upward. The shell 12 is provided with a paper bin 125 and a device assembly bin 124. The paper bin 125 opens upward. The shell 12 includes a left wall 121, a right wall 122 and a front wall 123. The left wall 121, the right wall 122 and the front wall 123 surround the device assembly bin 124. The device assembly bin 124 opens downward.

[0019] The base 13 includes a bottom plate 131 extending horizontally and a longitudinal plate 132 extending vertically. The longitudinal plate 132 is connected to the end of the bottom plate 131 based on the length direction X. Two support columns 133 are arranged at the upper end of the longitudinal plate 132. The two support columns 133 are distributed along the width direction Y. The support columns 133 are arranged in an L shape, which includes a vertical section and a horizontal section. The horizontal section extends backward. A hinge column 134 is arranged at the end of the horizontal section of the support column 133. The hinge column 134 is arranged outward along the width direction Y.

[0020] The cover body 11 is provided with cover side walls 111 on both sides in the width direction Y, and the inner wall of the cover side wall 111 is provided with a hinge hole 112, and a hinge column 134 on one side is connected to the hinge hole 112 on the same side, and the cover side wall 111 is located outside the hinge column 134. A torsion spring 135 is sleeved outside the hinge column 134, and the first end of the torsion spring 135 abuts against the upper end of the longitudinal plate 132, and the second end of the torsion spring 135 abuts against the cover body 11.

[0021] The main control circuit board 22 is installed in the device assembly compartment 124 along the vertical direction. The main control circuit board 22 is close to the front side of the housing 12 based on the length direction X. After all the required devices are assembled to the housing 12, and the cover 11 is assembled to the base 13, the two can then be assembled. Figure 3 The bottom plate 131 covers the outside of the device assembly bin 124, the longitudinal plate 132 is located at the rear end of the paper bin 125 based on the length direction X, and the left wall 121 is located on the left side of the bottom plate 131 and the longitudinal plate 132 based on the width direction Y, the right wall 122 is located on the right side of the bottom plate 131 and the longitudinal plate 132 based on the width direction Y, and the longitudinal plate 132 is located on the rear side of the front wall 123 based on the length direction X. The housing 12 and the base 13 can be fixedly connected by screws. When the cover body 11 is in the covered state, the cover body 11 covers the top of the paper bin 125, and the two cover side walls 111 and the two support columns 133 are located between the left wall 121 and the right wall 122.

[0022] As can be seen from the above, the present invention utilizes the step-by-step assembly of components to improve the efficiency of the assembly process, and because the cover body is hinged to the longitudinal plate, the stability of the cover body during rotation is improved, and the support force for the cover body is also improved. Furthermore, by utilizing the outward-facing hinge column and the inward-facing hinge hole, utilizing the cover side wall to shield the hinge position, and cooperating with the left wall and the right wall to shield the bottom plate and the longitudinal plate, the integrity of the printer body is effectively improved. In addition, by vertically installing the main control circuit board on the front side of the housing, and the cover body being assembled on the rear side of the housing, the space utilization of the housing can be improved, and the assembly efficiency is also improved.

Claims

1. A thermal printer with improved cover support, comprising a housing, a base, a cover, a main control circuit board, a rubber roller and a thermal sheet, wherein the rubber roller is arranged along the width direction and rotatably arranged on the cover, the thermal sheet is arranged on the housing, the thermal sheet and the rubber roller are opposite to each other and form a paper feeding passage, the housing is provided with a paper bin and a device assembly bin, the paper bin opens upward, the device assembly bin opens downward, and the main control circuit board is installed in the device assembly bin; Features: The base includes a bottom plate extending horizontally and a longitudinal plate extending vertically, the longitudinal plate is connected to the end of the bottom plate based on the length direction, a support column is provided at the upper end of the longitudinal plate, the cover body is hinged to the support column, the bottom plate covers the outside of the device assembly bin, the longitudinal plate is located at the rear end of the paper bin based on the length direction, and the cover body covers the top of the paper bin.

2. The thermal printer according to claim 1, characterized in that: Two support columns are arranged at the upper end of the longitudinal plate, the two support columns are distributed along the width direction, and the support columns are provided with hinge columns outwardly along the width direction; The cover body is provided with cover side walls on both sides in the width direction, the inner wall of the cover side wall is provided with hinge holes, the hinge column on one side is connected to the hinge hole on the same side, and the cover side wall is located on the outer side of the hinge column.

3. The thermal printer according to claim 2, characterized in that: The thermal printer further comprises two torsion springs, one of which is sleeved outside the hinge column, the first end of the torsion spring abuts against the upper end of the longitudinal plate, and the second end of the torsion spring abuts against the cover body.

4. The thermal printer according to claim 3, characterized in that: The shell includes a left wall, a right wall and a front wall, and the left wall, the right wall and the front wall enclose the device assembly compartment. The left wall is located on the left side of the bottom plate and the longitudinal plate based on the width direction, the right wall is located on the right side of the bottom plate and the longitudinal plate based on the width direction, and the longitudinal plate is located on the rear side of the front wall based on the length direction.

5. The thermal printer according to claim 4, characterized in that: When the cover body is in a closed state, the two cover side walls and the two support columns are located between the left wall and the right wall.

6. The thermal printer according to any one of claims 1 to 5, characterized in that: The main control circuit board is installed in the device assembly compartment along a vertical direction, and the main control circuit board is close to the front side of the housing based on the length direction.

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