POS printer with multiple power supply modes

Abstract

The utility model discloses a POS printer with multiple power supply modes, and relates to the technical field of POS printers, the POS printer comprises a host and a paper bin cover, the front side of the host is provided with an operation screen, and the side surface of the host is provided with an interface. When the POS printer with the multiple power supply modes is used, the cover plate on one side of the interface can be pulled, so that the cover plate slides in the direction of the interface through the sliding blocks on the two sides, the cover plate extrudes the inclined surface of the clamping block when driving the butt joint block to move, and the clamping block is contracted into the groove of the host through the connecting block and the movable spring; when the butt-joint block completely moves into the groove of the host, the groove at the bottom of the butt-joint block is aligned with the clamping block, then the clamping block resets with the connecting block through the movable spring and is inserted into the groove of the butt-joint block, and the cover plate can be fixed through the cooperation of the clamping block and the butt-joint block, so that the cover plate can protect the interface. And dust and rainwater are prevented from entering a host interface.

Description

Technical Field

[0001] The utility model relates to the technical field of POS printers, and specifically relates to a POS printer with multiple power supply modes. Background Art

[0002] POS printers are mainly used in occasions such as restaurants for receiving orders and printing orders, queuing and number calling in restaurants and printing vouchers, express delivery for receiving orders and printing express bills, etc., where software is required to receive order information and print voucher information.

[0003] When the existing POS printers are in use, in order to facilitate and quickly charge the host, the interfaces are usually exposed on the outside, which causes dust and rainwater to easily enter the interfaces, resulting in damage and blockage of the interfaces. Therefore, they do not have the function of protecting the interfaces. Content of the Utility Model

[0004] The purpose of the utility model is to provide a POS printer with multiple power supply modes to solve the problem that the currently used POS printers do not have interface protection as mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a POS printer with multiple power supply modes, including: a host and a paper bin cover. An operation screen is installed on the front of the host, an interface is provided on the side of the host, a paper bin is installed on the top of the host, and the paper bin cover is installed on the top of the paper bin through a rotating shaft.

[0006] One end of the interface is installed with a cover plate through a chute. A docking block is installed on one side of the cover plate, and sliders are connected to both sides of the cover plate.

[0007] Preferably, a pressure rod is connected through a through groove in the middle of the docking block, and a connecting block is arranged at the bottom of the pressure rod.

[0008] Preferably, a movable spring is arranged between the connecting block and the groove of the host, and a clamping block penetrates through the groove of the host at the top of the connecting block.

[0009] Preferably, a fixing block is installed on the back of the host, and an elastic band is installed on one side of the fixing block.

[0010] Preferably, a sliding block is installed on the side of the elastic band away from the fixing block, and ejector rods penetrate through both sides of the sliding block.

[0011] Preferably, a telescopic block is connected between the ejector rod and the groove of the sliding block, and a reset spring is arranged between the telescopic block and the groove of the sliding block.

[0012] Preferably, a limiting block penetrating the sliding block is installed on the same side of the telescopic block away from the ejector rod, and a toothed block is installed in the chute on the back of the main unit and the limiting block.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: When the POS printer with multiple power supply modes is in use, the cover plate on one side of the interface can be pulled, so that the cover plate slides along the direction of the interface through the sliders on both sides. When the cover plate drives the docking block to move, it will squeeze the inclined surface of the clamping block, so that the clamping block contracts into the groove of the main unit through the connecting block and the movable spring. When the docking block completely moves into the groove of the main unit, the groove at the bottom of the docking block is aligned with the clamping block, and then the clamping block will reset through the movable spring and the connecting block and be inserted into the groove of the docking block. Through the cooperation of the clamping block and the docking block, the cover plate can be fixed, so that the cover plate can protect the interface and prevent dust and rain from entering the main unit interface. This is the usage feature of the POS printer with multiple power supply modes.

[0014] 1. For the POS printer with multiple power supply modes, when it is necessary to protect the interface, only the cover plate needs to be pulled, so that the cover plate plays a role in covering the charging interface. At the same time, through the cooperation of the connecting block and the movable spring, the clamping block is inserted into the bottom of the docking block, and the cover plate can be limited and fixed through the clamping block, so that the protection effect of the cover plate on the interface is better.

[0015] 2. For the POS printer with multiple power supply modes, when it is necessary to use, only according to the size of the palm, the ejector rod is squeezed into the inside of the sliding block, and the limiting block is driven by the telescopic block to separate from the toothed block in the chute on the back of the main unit. At this time, the tightness of the elastic band can be adjusted by adjusting the position of the sliding block, and the main unit can be easily sleeved on the palm through the elastic band, so that the main unit is not easy to slip during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is a front view sectional structural schematic diagram of the cover plate of the present utility model;

[0018] Figure 3 is a top view sectional structural schematic diagram of the cover plate of the present utility model;

[0019] Figure 4 is a front view sectional structural schematic diagram of the fixing block of the present utility model;

[0020] Figure 5 is a top view sectional structural schematic diagram of the fixing block of the present utility model.

[0021] In the figure: 1. Main unit; 2. Operation screen; 3. Interface; 4. Paper bin; 5. Paper bin cover; 6. Cover plate; 7. Docking block; 8. Slide block; 9. Pressing rod; 10. Connecting block; 11. Active spring; 12. Fixed block; 13. Elastic band; 14. Sliding block; 15. Thrust rod; 16. Telescopic block; 17. Return spring; 18. Limit block; 19. Tooth block; 20. Clamping block. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1 , the present invention provides a technical solution: a POS printer with multiple power supply modes, including: a main unit 1 and a paper bin cover 5. An operation screen 2 is installed on the front of the main unit 1, an interface 3 is provided on the side of the main unit 1, a paper bin 4 is installed on the top of the main unit 1, and the paper bin cover 5 is installed on the top of the paper bin 4 through a rotating shaft;

[0024] One end of the interface 3 is installed with a cover plate 6 through a chute. A docking block 7 is installed on one side of the cover plate 6. Both sides of the cover plate 6 are connected with slide blocks 8. A pressing rod 9 is connected through a through groove in the middle of the docking block 7. A connecting block 10 is arranged at the bottom of the pressing rod 9. An active spring 11 is arranged between the connecting block 10 and the groove of the main unit 1. The top of the connecting block 10 penetrates through the groove of the main unit 1 and is provided with a clamping block 20. One side of the clamping block 20 is of an inclined surface structure.

[0025] During specific implementation, for the POS printer with multiple power supply modes, when the entire main unit 1 needs to be charged, the pressing rod 9 penetrating through the middle of the docking block 7 can be squeezed into the interface 3. Since the connecting block 10 is arranged at the bottom of the pressing rod 9, the movement of the pressing rod 9 will squeeze the connecting block 10, causing the connecting block 10 to squeeze the active spring 11, and at the same time causing the clamping block 20 at the top of the connecting block 10 to contract into the groove of the main unit 1. After the clamping block 20 contracts into the groove of the main unit 1, the clamping block 20 is no longer inserted into the groove at the bottom of the docking block 7, and there is no clamping block 20 to limit the docking block 7. Then the cover plate 6 can be pulled to one side, causing the cover plate 6 to slide to one side of the interface 3 through the slide blocks 8 on both sides. At this time, the cover plate 6 no longer blocks the interface 3, and then the charging connector can be inserted into the interface 3 of the main unit 1;

[0026] Conversely, the charging connector can be pulled out from the interface 3, and then the cover plate 6 is pulled backward, so that the cover plate 6 slides backward through the slider 8. The cover plate 6 can cover the interface 3, and the docking block 7 on one side of the cover plate 6 is inserted into the groove of the host 1. At the same time, during the movement of the docking block 7, since one end of the clamping block 20 is a bevel structure, the docking block 7 will squeeze the clamping block 20 during movement, causing the clamping block 20 to shrink into the groove of the host 1. When the cover plate 6 continues to drive the docking block 7 to move into the groove of the host 1, the groove at the bottom of the docking block 7 is aligned with the clamping block 20, and then the clamping block 20 will be reset through the cooperation of the movable spring 11 and the connecting block 10, and the clamping block 20 is inserted into the bottom of the docking block 7. The position of the cover plate 6 can be fixed through the cooperation of the clamping block 20 and the docking block 7, so that the cover plate 6 can protect the position of the interface 3 and prevent dust and rain from entering the interface 3 and causing damage to the interface 3.

[0027] Refer to Figure 1 、 Figure 2 and Figure 3 It can be seen that during use, according to the usage requirements, the cover plate 3 can be slid to one side of the interface 3. At this time, the cover plate 3 can protect the interface 3 and prevent dust and rain from entering the interface 3.

[0028] A fixing block 12 is installed on the back of the host 1. One side of the fixing block 12 is installed with an elastic band 13. The side of the elastic band 13 away from the fixing block 12 is installed with a sliding block 14. Both sides of the sliding block 14 are connected through a top rod 15. A telescopic block 16 is connected between the top rod 15 and the groove of the sliding block 14. A reset spring 17 is arranged between the telescopic block 16 and the groove of the sliding block 14. On the same side of the telescopic block 16 away from the top rod 15, a limiting block 18 passing through the sliding block 14 is installed. A toothed block 19 is installed in the sliding groove on the back of the host 1 between the limiting block 18 and the back of the host 1.

[0029] During specific implementation, when using this POS printer with multiple power supply modes, according to the size of the palm, the ejector rods 15 on both sides of the sliding block 14 can be squeezed towards the inside of the sliding block 14. When the ejector rods 15 move, they will push the telescopic block 16 on one side to move, causing the telescopic block 16 to also move towards the inside of the sliding block 14. At the same time, the return spring 17 in the groove of the sliding block 14 is squeezed. The movement of the telescopic block 16 will drive the limit block 18 to move, making the limit block 18 also contract into the groove of the sliding block 14. Without the docking of the limit block 18 and the tooth block 19, the sliding block 14 can slide along the chute on the back of the main unit 1. Since an elastic band 13 is installed between the sliding block 14 and the fixed block 12, and the fixed block 12 is fixedly installed on the back of the main unit 1, by adjusting the position of the sliding block 14, the tightness of the elastic band 13 can be adjusted. At this time, the main unit 1 can be put on the palm through the elastic band 13. Then, the ejector rods 15 on both sides of the sliding block 14 can be released. Without the ejector rods 15 squeezing the telescopic block 16, the telescopic block 16 will be reset by the return spring 17, and the limit block 18 and the tooth block 19 will be docked with each other. Through the limit block 18 and the tooth block 19, the position of the sliding block 14 can be quickly limited and fixed, so as to meet the different usage requirements of users. Through the elastic band 13, the situation of the main unit 1 slipping during use can be avoided.

[0030] Refer to Figure 4 And Figure 5 As can be seen, during use, the position of the sliding block 14 can be adjusted according to the usage requirements. By changing the position of the sliding block 14, the tightness of the elastic band 13 can be adjusted, so as to facilitate the user to put the main unit 1 on the palm through the elastic band 13, avoid the situation of the main unit 1 slipping, and at the same time facilitate the carrying of the main unit 1.

[0031] In summary, when the POS printer with multiple power supply modes is in use, the POS printer can be charged through interface 3. After the charging is completed, the roll paper required for printing is installed in the paper cassette 4, and the paper cassette cover 5 is covered. Then, the entire POS printer can be controlled according to the requirements through the control operation screen 2. Moreover, for the POS printer with multiple power supply modes, the DC interface 3 for direct power supply is retained, and a Type-C interface 3 integrating charging and data transmission is additionally set, enabling the POS printer to adapt to different usage scenarios without reducing the working efficiency of the thermal printer, making it more efficient to use. When powered by the DC port, not only can the battery be charged, but the battery does not supply power to the host, avoiding the state of the battery charging and discharging simultaneously, effectively protecting the battery and greatly extending the battery life. And if the battery is damaged or lost, the machine can operate normally by connecting to the DC power supply without the battery. The above two points are different from the power supply designs of most POS machines on the market. In addition, the conventional designs such as the TYPE-C interface only charging the battery, connecting to the PC for data interaction, having the OTG function to connect USB peripherals, and the host being powered by the battery (without connecting to the DC port power supply) are retained, which are similar to the power supply designs of most products on the market. These are the usage characteristics of the POS printer with multiple power supply modes. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A POS printer with multiple power supply modes, comprising: A main machine (1) and a paper bin cover (5), characterized in that: an operation screen (2) is installed on the front of the main machine (1), an interface (3) is provided on the side of the main machine (1), a paper bin box (4) is installed on the top of the main machine (1), and the paper bin cover (5) is installed on the top of the paper bin box (4) via a rotating shaft; A cover plate (6) is installed at one end of the interface (3) via a slide groove, a docking block (7) is installed at one side of the cover plate (6), and sliders (8) are connected to both sides of the cover plate (6).

2. The POS printer with multiple power supply modes according to claim 1, characterized in that: A pressure rod (9) is connected through a through slot in the middle of the docking block (7), and a connecting block (10) is arranged at the bottom of the pressure rod (9).

3. The POS printer with multiple power supply modes according to claim 2, characterized in that: A movable spring (11) is arranged between the connection block (10) and the groove of the main unit (1), and a clamping block (20) is arranged at the top of the connection block (10) penetrating the groove of the main unit (1).

4. The POS printer with multiple power supply modes according to claim 1, characterized in that: A fixing block (12) is installed on the back of the main unit (1), and an elastic band (13) is installed on one side of the fixing block (12).

5. The POS printer with multiple power supply modes according to claim 4, characterized in that: A sliding block (14) is installed on the side of the elastic band (13) away from the fixed block (12), and both sides of the sliding block (14) are penetrated and connected with a push rod (15).

6. The POS printer with multiple power supply modes according to claim 5, characterized in that: A telescopic block (16) is connected between the push rod (15) and the groove of the sliding block (14), and a return spring (17) is arranged between the telescopic block (16) and the groove of the sliding block (14).

7. The POS printer with multiple power supply modes according to claim 6, characterized in that: A limit block (18) penetrating the sliding block (14) is installed on the same side of the telescopic block (16) away from the top rod (15), and a tooth block (19) is installed in the slide groove between the limit block (18) and the back of the main machine (1).

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