A foldable portable cash register

Abstract

This invention discloses a foldable portable POS terminal, belonging to the technical field of POS terminals. It includes a settlement display screen and a barcode scanner. One end of the settlement display screen is rotatably mounted on the main body and can rotate to a horizontal position, precisely within the surface of the main body. A sliding cover is horizontally slidably mounted on the upper surface of the main body, covering the settlement display screen in its normal state. A barcode scanner is positioned parallel to the settlement display screen below it. As the sliding cover is pulled open to one side of the main body to reveal the settlement display screen, the settlement display screen rotates clockwise and emerges from the main body, while the barcode scanner extends horizontally beyond the main body in the opposite direction to the sliding cover. This foldable portable POS terminal is easy to carry and provides good protection for the display screen.

Description

Technical Field

[0001] This invention relates to the field of cash register technology, specifically a foldable portable cash register. Background Technology

[0002] A cash register is a device used for commercial settlements. Common cash registers are primarily desktop models with a display screen showing transaction information. This screen is usually placed on a counter so customers can verify their purchase details and the amount to be paid. Meanwhile, due to the widespread use of mobile payments, cash transactions are rarely used anymore; instead, mobile payment methods like WeChat Pay and Alipay are prevalent. These mobile payments typically require the merchant to provide a QR code, which, in addition to being paper-based, is often displayed directly on an electronic screen and activated simultaneously with the checkout display.

[0003] To facilitate customer checkout, an increasing number of shops are adopting WeChat mini-programs for direct ordering and payment. While these devices are easy to operate, neither the customer nor the shop can verify the transaction details face-to-face during checkout. Merchants may be unaware of the transaction until the customer leaves, forcing many to resort to physically going to the counter with the payment code, finding a paper menu or opening the mini-program to verify the information before scanning the code for payment – ​​a highly inconvenient process. Given today's fast-paced lifestyle and high customer traffic in some shops, both consumers and merchants desire more convenient and transparent settlement methods. Therefore, research and improvement by those skilled in the art are urgently needed to develop more convenient payment devices for faster face-to-face settlements. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, the present invention provides a foldable portable cash register, which solves the problem that existing cash registers can no longer meet people's growing need for convenience in commercial transactions.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a foldable portable cash register, comprising a settlement display screen and a barcode scanner. One end of the settlement display screen is rotatably mounted on the main body and can be rotated to a horizontal position, which is exactly within the surface of the main body. A sliding cover is also horizontally slidably mounted on the upper surface of the main body. In its normal state, the sliding cover covers the settlement display screen. A barcode scanner is disposed parallel to the settlement display screen below it. As the sliding cover is pulled open to one side of the main body to expose the settlement display screen, the settlement display screen rotates clockwise and rotates out of the main body, and the barcode scanner extends horizontally out of the main body in the opposite direction to the sliding cover.

[0008] Furthermore, one end of the settlement display screen is fixedly equipped with a sleeve, and a rotating shaft is rotatably installed inside the sleeve. The two ends of the rotating shaft are fixed in the two opposite side walls of the storage cavity inside the main body.

[0009] Furthermore, a driven gear is fixed at one end of the rotating shaft. The end face of the driven gear away from the settlement display screen has a ring of protrusions arranged in a circular array. The protrusions intermittently contact a lever, causing the driven gear to intermittently rotate to a certain angle.

[0010] Furthermore, one end of the lever is fixed to the edge of the end face of a reversing gear, which is rotatably mounted in the mounting cavity and meshes with a driving gear that is also rotatably mounted in the mounting cavity.

[0011] Furthermore, the drive gear meshes with a rack, which is fixed horizontally to the side of the sliding cover facing the settlement display screen. The sliding cover slides horizontally over the opening of the mounting cavity, and when the sliding cover is pulled, the drive gear is driven to rotate by the rack.

[0012] Furthermore, the lever is L-shaped, with one end fixed vertically to the edge of the end face of the reversing gear, and the other end extending beyond the end face of the driven gear in a direction perpendicular to the axial direction of the driven gear, so as to intermittently contact the cylindrical surface of the protrusion.

[0013] Furthermore, the sliding cover has a rectangular groove parallel to the rack, which the other end of the lever extends into and passes through when the reversing gear rotates.

[0014] Furthermore, the upper surface of the sliding cover at one end facing the pull-out direction has a raised ridge, and the lower surface of the other end has an elastic sponge strip. When the sliding cover slides, the sponge strip can wipe and contact the surface of the settlement display screen.

[0015] Furthermore, the driven gear also meshes with a strip tooth that is horizontally slidably installed in the mounting cavity. The rack and the strip tooth are arranged in parallel vertically, and the strip tooth is fixedly connected to the barcode scanner to drive the barcode scanner to slide out or slide in within the mounting cavity.

[0016] Furthermore, when the sliding cover is pulled out to its limit, the settlement display screen is in a vertical position, and the settlement display screen includes two screens arranged opposite each other, with settlement information displayed on both screens simultaneously.

[0017] (III) Beneficial Effects

[0018] This invention provides a foldable portable cash register with the following advantages: First, it has a simple and compact structure that is easy to manufacture. It features a sliding cover that automatically flips the settlement display screen when pulled out, and simultaneously pops up a barcode scanning display screen for customers to scan and settle payments. The triple linkage design means that only one action of pulling the sliding cover is needed to realize the verification of consumption information and payment settlement, which is very convenient and conducive to mobile settlement in stores. The display screen is also not easily damaged during carrying and use. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the present invention in its stored state;

[0020] Figure 2 This is a diagram showing the connection structure between the settlement display screen and the driven gear.

[0021] Figure 3 for Figure 1 Enlarged view of the structure within the thin line region of the middle ellipse;

[0022] Figure 4 This is a schematic diagram of the invention in its unfolded state.

[0023] Figure 5 for Figure 3 A-direction view of the center lever;

[0024] Figure 6 for Figure 1 A simplified upward view of the slider mechanism.

[0025] In the diagram: 1. Main body; 2. Settlement display screen; 3. Sliding cover; 301. Rectangular groove; 4. Sleeve; 5. Rotating shaft; 6. Driven gear; 7. Protruding post; 8. Lever; 9. Reversing gear; 10. Drive gear; 11. Rack; 12. Bar tooth; 13. Scanning screen; 14. Cuboid box; 15. Sponge strip; 16. Protruding ridge. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] This embodiment of a foldable portable cash register has the following structure: Figure 1As shown, the system mainly includes a payment display screen 2 and a barcode scanner 13. The payment display screen 2 is a common monitor found on cash registers, displaying transaction details and a settlement list. One end of the display screen 2 is rotatably mounted on the main body 1 and can rotate to a horizontal position, fitting perfectly within the surface of the main body 1. When stored, the display screen 2 lies flat inside the main body 1. A sliding cover 3, which can be a rectangular plate structure, is also horizontally slidably mounted on the upper surface of the main body 1. When not in use, this cover covers the payment display screen 2, protecting it from dust accumulation or damage from bumps and scratches. Furthermore, a barcode scanner 13 is positioned parallel to and below the payment display screen 2. This barcode scanner 13 is a common payment device with a glass window, used to scan payment codes on mobile phones or other mobile payment apps. Specifically, as the sliding cover 3 is pulled open to the side of the main body 1 to reveal the settlement display screen 2, the settlement display screen 2 rotates clockwise and moves out from inside the main body 1 for viewing. At the same time, the barcode scanning screen 13 extends horizontally out of the main body 1 in the opposite direction to the sliding cover 3 so that after viewing the consumption details, the user can scan the barcode to pay and settle the transaction.

[0028] In the specific production process, such as Figure 2 One end of the settlement display screen 2 is fixedly equipped with a sleeve 4. A rotating shaft 5 is rotatably installed inside the sleeve 4. The two ends of the rotating shaft 5 are fixed in the two opposite side walls of the receiving cavity inside the main body 1 to achieve a hinged connection within the main body 1. A driven gear 6 is fixed to one end of the rotating shaft 5. On the end face of the driven gear 6 facing away from the settlement display screen 2, there is a ring of protruding posts 7 evenly spaced. The protruding posts 7 are cylindrical structures. These protruding posts 7 are used to intermittently contact a lever 8 at appropriate times, so that the driven gear 6 intermittently rotates to a certain angle. Even if the sliding cover 3 is very long, or the display screen is large enough, the display screen will only flip and extend from the main body 1 when the sliding cover 3 is fully pulled out. This prevents the settlement display screen 2 from rotating to a large angle as soon as the sliding cover 3 is pulled open slightly, which would cause interference between the settlement display screen 2 and the sliding cover 3 and prevent it from unfolding properly.

[0029] More specifically in terms of structure, such as Figure 3One end of the lever 8 is fixed to the edge of the end face of a reversing gear 9. The reversing gear 9 is rotatably mounted in the mounting cavity and meshes with a driving gear 10, which is also rotatably mounted in the mounting cavity. This driving gear 10 also meshes with a rack 11, which is fixed horizontally to the side of the sliding cover 3 facing the settlement display screen 2. Specifically, it can be integrally formed with the sliding cover 3 or detachably connected. When the sliding cover 3 is horizontally slidably covering the opening of the mounting cavity, and then the sliding cover is pulled horizontally, the rack 11 will drive the driving gear 10 to rotate, causing the lever 8 on the reversing gear 9 to intermittently rotate the driven gear 6. As a detailed implementation structure, for the lever 8, as follows... Figure 3 and Figure 5 The lever 8 is L-shaped, with one end fixed vertically to the edge of the end face of the reversing gear 9, and the other end perpendicular to the axial direction of the driven gear 6, and can extend beyond the end face of the driven gear 6 so as to intermittently contact the cylindrical surface of the protrusion 7 to achieve the aforementioned intermittent toggle.

[0030] In the above structural design, in order to make the structure more compact and more portable, such as Figure 1 , Figure 3 and Figure 6 In particular, the sliding cover 3 has a rectangular groove 301 parallel to the rack 11. When the reversing gear 9 rotates, the other end of the lever 8 extends into and passes through the rectangular groove 301. This design allows the sliding cover 3 to be closer to the driven gear 6 and the reversing gear 9, making the structure more compact. When the lever 8 rotates, it can enter the rectangular groove 301 of the sliding cover 3 without interfering with the rectangular groove 301, making it possible for the sliding cover 3 to move closer to the settlement display screen 2.

[0031] To facilitate pulling the sliding cover 3, such as Figure 1 The upper surface of the sliding cover 3 on one end facing the pull-out direction has a raised ridge 16. Pressing and dragging the raised ridge 16 will slide the sliding cover 3 out. The lower surface of the other end has an elastic sponge strip 15. When the sliding cover 3 slides, the sponge strip 15 can wipe and contact the surface of the settlement display screen 2 to clean the dust on the surface of the settlement display screen 2. At the same time, because the sponge strip 15 has a large amount of compression, even if the settlement display screen 2 accidentally bumps into the end of the sliding cover 3 due to structural size error, the presence of the sponge strip 15 will first compress the sponge strip 15, so that a rigid collision will occur and it will not be unable to unfold.

[0032] Regarding the simultaneous extension of the QR code scanning screen 13, specifically, as follows: Figure 1The driven gear 6 also meshes with a horizontally sliding rack 12 mounted in the mounting cavity. The rack 11 and rack 12 are arranged parallel vertically. The rack 12 is fixedly connected to the barcode scanner 13, allowing the scanner 13 to slide out or in within the mounting cavity, thus achieving a three-way coordinated unfolding of the sliding cover 3, the settlement display screen 2, and the barcode scanner 13. In practice, the position where the sliding cover 3 is pulled out and the position where the settlement display screen 2 is rotated out can be flexibly designed, for example... Figure 4 As shown, the main body 1 can be a cuboid box 14. When the sliding cover 3 is pulled out to its limit, the settlement display screen 2 is in a vertical position. The settlement display screen 2 includes two screens set opposite each other. The settlement information is displayed on the two screens at the same time, so that the store clerk and the customer can see their respective display screens at the same time, making it more convenient to settle and verify the settlement.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foldable portable cash register, comprising a settlement display screen (2) and a barcode scanning screen (13), characterized in that: One end of the settlement display screen (2) is rotatably mounted on the body (1) and can be rotated to a horizontal position so that it is exactly inside the surface of the body (1). A sliding cover (3) is also horizontally slidably mounted on the upper surface of the body (1). In the normal state, the sliding cover (3) covers the settlement display screen (2). A barcode scanning screen (13) is provided parallel to the bottom of the settlement display screen (2). During the process of the sliding cover (3) being pulled open towards the side of the body (1) to expose the settlement display screen (2), the settlement display screen (2) rotates clockwise and turns out from inside the body (1), and the barcode scanning screen (13) extends horizontally out of the body (1) in the opposite direction to the sliding cover (3). One end of the settlement display screen (2) is fixedly provided with a sleeve (4), and a rotating shaft (5) is rotatably installed inside the sleeve (4). The two ends of the rotating shaft (5) are fixed in the two opposite side walls of the storage cavity inside the main body (1). The rotating shaft (5) has a driven gear (6) fixed at one end. The driven gear (6) has a ring of protrusions (7) arranged in a circular array on the end face away from the settlement display screen (2). The protrusions (7) intermittently contact a lever (8), causing the driven gear (6) to intermittently rotate to a certain angle. One end of the lever (8) is fixed to the edge of the end face of a reversing gear (9). The reversing gear (9) is rotatably installed in the mounting cavity, and the reversing gear (9) meshes with a driving gear (10) that is also rotatably installed in the mounting cavity. The drive gear (10) meshes with a rack (11), which is fixed horizontally on the side of the sliding cover (3) facing the settlement display screen (2). The sliding cover (3) slides horizontally over the opening of the mounting cavity, and when the sliding cover is pulled, the drive gear (10) is driven to rotate by the rack (11). The driven gear (6) is also engaged with a strip tooth (12) that is horizontally slidably installed in the mounting cavity. The rack (11) and the strip tooth (12) are arranged in parallel vertically. The strip tooth (12) is fixedly connected to the barcode scanner (13) so as to drive the barcode scanner (13) to slide out or slide in the mounting cavity.

2. The foldable portable POS machine as described in claim 1, characterized in that: The lever (8) is L-shaped, with one end fixed vertically to the edge of the end face of the reversing gear (9), and the other end extending beyond the end face of the driven gear (6) in a direction perpendicular to the axial direction of the driven gear (6) so as to intermittently contact the cylindrical surface of the protrusion (7).

3. The foldable portable POS machine as described in claim 2, characterized in that: The sliding cover (3) also has a rectangular groove (301) parallel to the rack (11), and the other end of the lever (8) extends into and passes through the rectangular groove (301) when the reversing gear (9) rotates.

4. The foldable portable POS machine as described in claim 3, characterized in that: The upper surface of the sliding cover (3) facing the pull-out direction has a raised ridge (16), and the lower surface of the other end has an elastic sponge strip (15). When the sliding cover (3) slides, the sponge strip (15) can wipe and contact the surface of the settlement display screen (2).

5. The foldable portable POS machine as described in claim 1, characterized in that: When the sliding cover (3) is pulled out to its limit, the settlement display screen (2) is in a vertical position, and the settlement display screen (2) includes two screens arranged opposite to each other, and the settlement information is displayed on the two screens at the same time.

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