Thermal printer capable of draining water

Abstract

The utility model provides a thermal printer capable of draining water, which comprises a shell, a base, a cover body, a master control circuit board, a machine core seat and a rubber roller, the base is provided with a supporting block, the base is respectively provided with an avoiding groove and a mounting groove on two opposite sides of the supporting block, the machine core seat is fixedly arranged on the supporting block, and the rubber roller is fixedly arranged on the base. A plurality of drainage holes are formed in the top face of the supporting block in the vertical direction in a penetrating mode, and the paper outlet, the machine core base and the drainage holes are arranged in the vertical direction. The shell is arranged on the outer side of the base in a sleeving mode, the paper bin is located in the receding groove, and the main control circuit board is arranged in the vertical direction, installed and fixed in the installation groove and located in the device assembling bin. After entering from the paper outlet, water vapor can quickly reach the drain hole in the top surface and then is discharged under the action of gravity, so that the operation stability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the field of thermal printers, in particular to a thermal printer capable of draining water. Background Art

[0002] With the popularization of thermal printers, they are used in bank ATMs, supermarket checkout counters, e-commerce delivery offices, catering shops or kitchens, etc. As the application environment becomes increasingly harsh, thermal printers need to be equipped with waterproof or drainage functions to improve their adaptability and market competitiveness.

[0003] In the existing design, the paper outlet of the printer is usually normally open, and a core seat, a rubber roller, a thermal film and a rubber roller drive assembly are arranged on the inner side of the paper outlet. Therefore, water vapor can easily invade from the paper outlet. If it is not discharged in time, it will affect the operating stability of the above-mentioned components. Utility Model Content

[0004] The utility model aims to provide a thermal printer capable of draining water.

[0005] In order to achieve the purpose of the utility model, the utility model provides a thermal printer with drainage, including a shell, a base, a cover body, a main control circuit board, a movement seat and a rubber roller, the rubber roller is rotatably arranged on the cover body, the shell is provided with a paper bin and a device assembly bin, the paper bin opens upward, the device assembly bin opens downward, the cover body is hinged to the shell and covers the paper bin, and an upward paper outlet is formed between the cover body and the shell; the base is provided with a support block, the base is provided with an avoidance groove and an installation groove on two opposite sides of the support block, the top surface of the support block is provided with a support column, and the movement seat It is fixedly set on the support column, and a thermal sheet and a rubber roller driving assembly are arranged on the movement seat. The rubber roller driving assembly is located on the side of the thermal sheet based on the paper width direction. The thermal sheet and the rubber roller are opposite to each other and form a paper feeding channel. The paper feeding channel is connected between the paper outlet and the paper bin. A plurality of drainage holes are arranged through the top surface of the support block in the vertical direction. The paper outlet, the movement seat and the drainage holes are arranged in the vertical direction. The outer shell is mounted on the outer side of the base, the paper bin is located in the avoidance groove, the main control circuit board is arranged in the vertical direction and fixed in the installation groove, and the main control circuit board is located in the device assembly bin.

[0006] A further solution is that a first baffle is provided on the top surface of the support block at a side close to the main control circuit board, and the first baffle extends upward in the vertical direction and also in the paper width direction.

[0007] A further solution is that the top surface of the support block is provided with second baffles at both ends in the paper width direction, and the second baffles are connected to the first baffles.

[0008] A further solution is that a receiving groove is provided below the top surface of the support block, and the receiving groove extends along the paper width direction.

[0009] A further solution is that a wiring panel is provided on one side of the accommodating slot close to the main control circuit board, the wiring panel is provided with a wiring port, and a terminal interface is provided at the lower end of the main control circuit board, and the terminal interface is located at the wiring port.

[0010] A further solution is that a counterweight block is arranged on the top surface of the support block on the side away from the main control circuit board, the upper edge of the counterweight block is higher than the top surface of the support block, and the counterweight block is located between the top surface of the support block and the paper bin.

[0011] The beneficial effect of the utility model is that the support block and its top surface are lifted up and cooperated with the support column to facilitate the installation of the movement seat, so that after the water vapor enters from the paper outlet, it can reach the drainage hole on the top surface more quickly, and then be discharged under the action of gravity, so as to improve the operating stability of the equipment, and the arrangement of the first baffle plate, the second baffle plate and the counterweight block is utilized to ensure that the water vapor is smoothly discharged from the drainage hole and will not enter other spaces again, and the arrangement of the receiving groove and the wiring panel is utilized, so that after wiring, some cables can be stored in the receiving groove, which is convenient for users to use. 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 with the cover body opened.

[0014] Figure 3 It is a structural diagram of an embodiment of the thermal printer of the utility model from a bottom side perspective.

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

[0016] Figure 5 It is a cross-sectional view of an embodiment of a 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 5 The thermal printer includes a shell 12, a base 2, a cover body 11, a main control circuit board 23, a movement seat 3 and a rubber roller 111. The rubber roller 111 is rotatably arranged on the cover body 11. The shell 12 is provided with a paper bin 121 and a device assembly bin 122. The paper bin 121 opens upward, and the device assembly bin 122 opens downward. The cover body 11 is hinged to the shell 12 through a hinged arm and covers the paper bin 121. An upward paper outlet 113 is formed between the cover body 11 and the shell 12. The paper outlet 112 is located at the top and is arranged to open upward.

[0019] The base 2 is provided with a support block 22, and the base 2 is respectively provided with an avoidance groove 21 and a mounting groove 23 on two opposite sides of the support block 22, a support column 225 is provided on the top surface 221 of the support block 22, and the movement seat 3 is fixedly arranged on the support column 225. A thermal sheet 31 and a rubber roller driving assembly 33 are provided on the movement seat 3, the thermal sheet 31 extends along the paper width direction, and the rubber roller driving assembly 33 is located on the side of the thermal sheet 31 based on the paper width direction. The rubber roller driving assembly 33 includes a driving motor and a gear set, and the paper feeding channel is connected between the paper outlet 113 and the paper bin 121. When the cover body 11 is in the closed state, the thermal sheet 31 and the rubber roller 111 are opposite to each other and form a paper feeding channel, and a driving gear is provided at the axial end of the rubber roller 111, and the driving gear is meshed with the gear set, and then driven by the driving motor, the rubber roller 111 is driven to rotate, thereby realizing the feeding of printing paper and printing imaging.

[0020] The top surface 221 of the support block 22 is penetrated with multiple drainage holes 222 along the vertical direction, the paper outlet 113, the movement seat 3 and the drainage holes 222 are arranged along the vertical direction, the outer shell 12 is mounted on the outside of the base 2, the paper bin 121 is located in the avoidance groove 21, the main control circuit board 23 is arranged along the vertical direction and installed and fixed in the installation groove 23, and the main control circuit board 23 is located in the device assembly bin 122.

[0021] A first baffle 223 is provided on the top surface 221 of the support block 22 on the side close to the main control circuit board 23. The first baffle 223 extends upward in the vertical direction and also extends in the paper width direction. Second baffles 224 are provided at both ends of the top surface 221 of the support block 22 in the paper width direction, and the second baffle 224 is connected to the first baffle 223. A counterweight block 226 is provided on the top surface 221 of the support block 22 on the side away from the main control circuit board 23. The upper edge of the counterweight block 226 is higher than the top surface 221 of the support block 22. The counterweight block 226 is located between the top surface 221 of the support block 22 and the paper bin 121.

[0022] A receiving groove 24 is provided below the top surface 221 of the support block 22, and the receiving groove 24 extends along the paper width direction. A wiring panel 253 is provided on the side of the receiving groove close to the main control circuit board 23, and the wiring panel is provided with a wiring port 251. A terminal interface 252 is provided at the lower end of the main control circuit board 23, and the terminal interface 252 is located at the wiring port 251.

[0023] As can be seen from the above, by lifting the support block and its top surface and cooperating with the support column, it is convenient to install the movement seat, so that after the water vapor enters from the paper outlet, it can reach the drainage hole on the top surface more quickly, and then be discharged under the action of gravity, so as to improve the operating stability of the equipment, and by arranging the first baffle plate, the second baffle plate and the counterweight block, it is ensured that the water vapor is smoothly discharged from the drainage hole and will not enter other spaces again, and by arranging the receiving groove and the wiring panel, some cables can be stored in the receiving groove after wiring, which is convenient for users to use.

Claims

1. A thermal printer capable of draining water, comprising a housing, a base, a cover, a main control circuit board, a movement seat and a rubber roller, wherein the rubber roller is rotatably arranged on the cover, the housing is provided with a paper bin and a device assembly bin, the paper bin opens upward, the device assembly bin opens downward, the cover is hinged to the housing and covers the paper bin, and an upward paper outlet is formed between the cover and the housing; Features: The base is provided with a support block, and the base is respectively provided with an avoidance groove and an installation groove on two opposite sides of the support block, a support column is provided on the top surface of the support block, the movement seat is fixedly arranged on the support column, and a thermal sheet and a rubber roller driving assembly are arranged on the movement seat, and the rubber roller driving assembly is located on the side of the thermal sheet based on the paper width direction, the thermal sheet and the rubber roller are opposite to each other and form a paper feeding channel, and the paper feeding channel is connected between the paper outlet and the paper bin, and a plurality of drainage holes are provided through the top surface of the support block in the vertical direction, and the paper outlet, the movement seat and the drainage holes are arranged in the vertical direction; The shell is sleeved on the outer side of the base, the paper bin is located in the avoidance groove, the main control circuit board is arranged in a vertical direction and fixed in the installation groove, and the main control circuit board is located in the device assembly bin.

2. The thermal printer according to claim 1, characterized in that: A first baffle is provided on the top surface of the support block at a side close to the main control circuit board. The first baffle extends upward in a vertical direction and also extends in the paper width direction.

3. The thermal printer according to claim 2, characterized in that: The top surface of the support block is provided with second baffles at both ends in the paper width direction, respectively, and the second baffles are connected to the first baffles.

4. The thermal printer according to any one of claims 1 to 3, characterized in that: A receiving groove is arranged below the top surface of the supporting block, and the receiving groove extends along the paper width direction.

5. The thermal printer according to claim 4, characterized in that: The accommodating slot is provided with a wiring panel on one side close to the main control circuit board, the wiring panel is provided with a wiring port, and the lower end of the main control circuit board is provided with a terminal interface, and the terminal interface is located at the wiring port.

6. The thermal printer according to any one of claims 1 to 3, characterized in that: A counterweight block is arranged on the top surface of the support block at a side away from the main control circuit board, the upper edge of the counterweight block is higher than the top surface of the support block, and the counterweight block is located between the top surface of the support block and the paper bin.

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