A cash register device using a spliced LED screen for advertisement promotion
Patent Information
- Application Number
- CN202522269550.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-27
AI Technical Summary
[0003]但现有收银装置存在明显不足：现有装置要么无专用广告展示组件，无法利用收银场景进行广告推广以增加额外价值，要么广告组件固定不可拆卸，导致广告内容更换、设备维护时操作繁琐，且需额外购置广告设备增加成本，同时现有装置的信息显示器高度多为固定设计，无法根据收银员或顾客身高调整视角，易导致操作人员疲劳，也难以适配不同场景下的使用需求，影响收银效率
1、本实用新型提出的一种利用拼接LED屏作广告推广的收银装置，通过增设的可装卸式广告推广机构，解决传统收银装置无专用广告推广组件或组件固定不可拆的问题，其可根据广告推广需求快速装卸广告推广显示器，无需借助工具，提升广告内容更换或设备维护的效率，且限位卡板与限位卡槽的配合避免装配板偏移，弹性卡合杆与卡合孔的锁止结构确保广告推广显示器固定牢固，防止使用过程中松动掉落，且该机构使收银装置兼具收银与广告推广功能，无需额外购置广告设备，降低经营成本，同时广告推广显示器的独立设置可灵活调整广告展示位置，提升广告曝光效果。
Smart Images
Figure CN224786806U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cash register technology, and in particular to a cash register that uses spliced LED screens for advertising and promotion. Background Technology
[0002] In checkout scenarios such as supermarkets and convenience stores, checkout devices need to balance efficient checkout operations with additional advertising and promotional functions, while also adapting to the usage habits of operators of different heights to improve efficiency.
[0003] However, existing POS devices have obvious shortcomings: either they lack dedicated advertising display components, making it impossible to use the POS scenario for advertising promotion to add extra value, or the advertising components are fixed and cannot be disassembled, making it cumbersome to change advertising content and maintain the equipment, and requiring the purchase of additional advertising equipment to increase costs. At the same time, the height of the information display of existing devices is mostly fixed, and the viewing angle cannot be adjusted according to the height of the cashier or customer, which can easily lead to operator fatigue and is difficult to adapt to the usage needs of different scenarios, affecting POS efficiency.
[0004] Therefore, those skilled in the art have provided a POS device that utilizes spliced LED screens for advertising and promotion, in order to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies and provide a POS device that utilizes spliced LED screens for advertising and promotion. Through a detachable advertising mechanism, the advertising display can be quickly installed and removed without tools, enabling the POS device to combine POS and advertising functions. This reduces equipment costs and allows for flexible adjustment of the display position to enhance exposure. It solves the problem of traditional devices lacking dedicated detachable advertising components. Furthermore, the position adjustment mechanism allows for precise height adjustment of the information display by rotating the head, while a height-locking cover and auxiliary lever prevent displacement. This adapts to different heights and scenarios, improving user comfort and versatility, and solving the problem of fixed display height in traditional devices. The combination of these two features enhances the device's practicality and adaptability.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A POS device that uses spliced LED screens for advertising includes a base frame and an information display. A placement platform is fixedly connected to one side of the upper surface of the base frame, and a fixing plate is fixedly connected to the other side of the upper surface of the base frame. A connecting pin is fixedly connected to the upper surface of the fixing plate. A detachable advertising promotion mechanism is provided on one side of the connecting pin, and a position adjustment mechanism is provided between the connecting pin and the information display. The detachable advertising promotion mechanism includes an advertising promotion display. A fixed column is fixedly connected to one side of the connecting column, and a connecting column is fixedly connected to one side of the advertising promotion display. An assembly plate is fixedly connected to one end of the connecting column. An assembly opening is provided on one side of the connecting column. The assembly plate is engaged in the assembly opening. Adjustment grooves are provided on both the front and rear ends of the assembly plate. A return spring is fixedly connected to the inner wall of the rear end of the adjustment groove. A movable seat is fixedly connected to the front end of the return spring. A locking rod is fixedly connected to the front end of the movable seat. Locking holes are provided on both the front and rear ends of the fixed column. The locking rod is engaged in the locking holes. The above technical solution provides an assembly base through fixed columns and connecting columns. The engagement of the assembly plate and the assembly port forms a preliminary connection. The reset spring in the adjustment slot pushes the moving seat to make the engaging rod engage with the engaging hole, thereby realizing the automatic locking of the advertising display. This solves the problems of traditional advertising components being fixed and non-removable, and cumbersome to install and remove. The advertising equipment can be flexibly replaced according to needs, improving the ease of operation.
[0007] Furthermore, the position adjustment mechanism includes a limiting cover and multiple auxiliary slots. A fixing groove is provided on one side of the connecting pin. An adjusting screw is rotatably connected between the inner walls of the upper and lower ends of the fixing groove. A sliding seat is threaded onto the outer wall of the adjusting screw. A connecting rod is fixedly connected to one side of the sliding seat. One end of the connecting rod is fixedly connected to the information display. The upper end of the adjusting screw passes through the connecting pin and is fixedly connected to a rotating rod. A rotating head is fixedly connected to the upper end of the rotating rod. The above technical solution uses an adjusting screw in a fixed slot to transmit power through a rotating rod and a rotating head. The sliding seat moves up and down along the screw due to thread engagement, and then the connecting rod drives the information display to adjust its height synchronously. This solves the problem of fixed height in traditional information displays, adapts to the viewing needs of users of different heights, and improves user comfort.
[0008] Furthermore, the front and rear end faces and the outer walls of both sides of the rotating rod are fixedly connected with limiting strips, the limiting cover is movably sleeved on the rotating rod, the inner walls of both sides and the front and rear ends of the limiting cover are provided with limiting grooves, the limiting strips are engaged in the limiting grooves, the lower end face of the limiting cover is fixedly connected with multiple auxiliary locking rods, the multiple auxiliary locking grooves are opened on the upper end face of the connecting locking post, and the auxiliary locking rods are engaged in the auxiliary locking grooves; The above technical solution uses the limiting groove of the limiting cover and the limiting strip of the rotating rod to form a circumferential fixation, and the cooperation between the auxiliary locking rod and the auxiliary locking groove to achieve axial locking, preventing the adjusting screw from rotating on its own, solving the problem of easy loosening and displacement after height adjustment, ensuring the stability of the information display position, and guaranteeing the reliability of use.
[0009] Furthermore, an auxiliary slider is fixedly connected to one side of the sliding seat, and an auxiliary sliding groove is provided on the inner wall of one side of the fixed groove, and the auxiliary slider is slidably disposed in the auxiliary sliding groove. The above technical solution restricts the rotation trend of the sliding seat by the sliding cooperation between the auxiliary slider and the auxiliary slide groove, ensuring that the sliding seat moves only along the axial direction of the fixed groove. This solves the problem that the sliding seat easily rotates with the screw in the screw drive, making the information display rise and fall smoothly without shaking and improving the adjustment accuracy.
[0010] Furthermore, the front and rear end faces of the movable seat are fixedly connected to limit sliders, and the inner walls on both sides of the adjustment groove are provided with limit grooves, and the limit sliders are slidably disposed in the limit grooves. The above technical solution restricts the movement trajectory of the moving seat by the cooperation of the limiting slider and the limiting groove, ensuring that the locking rod extends and retracts in a straight line. This solves the problem of locking failure caused by the displacement of the moving seat during the locking process, ensures that the locking rod accurately aligns with the locking hole, and improves the locking reliability.
[0011] Furthermore, a limiting plate is fixedly connected to one side of the assembly plate, and a limiting groove is formed on the inner wall of one side of the assembly port, with the limiting plate engaging in the limiting groove. The above technical solution restricts the lateral displacement of the assembly plate within the assembly opening by engaging the limiting plate and the limiting slot, thus solving the problem of left and right wobbling that easily occurs when relying solely on the engaging rod for fixation. It forms a multi-dimensional fixation with the engaging rod, improving the installation stability of the advertising display.
[0012] Furthermore, support columns are fixedly connected to the lower end face of the base frame near the four corners; The above technical solution uses four support columns evenly distributed at the bottom of the base to form a stable support system, which enhances the overall anti-tipping ability of the device, solves the problem of unstable placement and easy shaking of the equipment, provides a stable installation foundation for components such as the placement table and information display, and ensures smooth cashier operation.
[0013] This utility model has the following beneficial effects: 1. This utility model proposes a POS device that utilizes spliced LED screens for advertising promotion. By adding a detachable advertising promotion mechanism, it solves the problem of traditional POS devices lacking dedicated advertising promotion components or having components that are fixed and cannot be disassembled. It can quickly install and remove advertising promotion displays according to advertising promotion needs without the need for tools, improving the efficiency of changing advertising content or maintaining equipment. Furthermore, the cooperation between the limiting plate and the limiting slot prevents the assembly plate from shifting, and the locking structure of the elastic locking rod and the locking hole ensures that the advertising promotion display is firmly fixed, preventing it from loosening and falling off during use. Moreover, this mechanism enables the POS device to have both POS and advertising promotion functions, eliminating the need to purchase additional advertising equipment and reducing operating costs. At the same time, the independent setting of the advertising promotion display allows for flexible adjustment of the advertising display position, improving the advertising exposure effect.
[0014] 2. This utility model proposes a POS device that utilizes a spliced LED screen for advertising and promotion. By adding a position adjustment mechanism, it solves the problem of the fixed height of the information display in traditional POS devices, which cannot adapt to operators of different heights or usage scenarios. The height of the information display can be precisely adjusted by rotating the head to adapt to the viewing angle of cashiers or customers, reducing operator fatigue and improving user comfort. The cooperation between the auxiliary slider and the auxiliary slide ensures that the information display rises and falls smoothly, avoiding shaking and deviation during adjustment. The fixing structure of the limiting cover and the auxiliary lever can lock the adjusted height, preventing the information display from moving on its own due to equipment vibration or accidental touch, ensuring stability. This mechanism can adjust the height without disassembly, making it convenient to operate and adaptable to the POS needs of different scenarios such as supermarkets and convenience stores, thus improving the versatility of the device.
[0015] 3. This utility model proposes a POS device that utilizes spliced LED screens for advertising and promotion. Through a detachable advertising mechanism, the advertising display can be quickly installed and removed without tools, enabling the POS device to combine POS and advertising functions. This reduces equipment costs and allows for flexible adjustment of the display position to enhance exposure. It solves the problem of traditional devices lacking dedicated detachable advertising components. Simultaneously, the position adjustment mechanism allows for precise height adjustment of the information display by rotating the head. A height-locking cover and auxiliary lever prevent displacement, adapting to different heights and scenarios, improving user comfort and versatility. This solves the problem of fixed display height in traditional devices. The combination of these two features enhances the device's practicality and adaptability. Attached Figure Description
[0016] Figure 1 This is an axonometric view of a POS device that utilizes spliced LED screens for advertising and promotion, as proposed in this utility model. Figure 2 This is a front sectional view of a POS device that uses spliced LED screens for advertising and promotion, as proposed in this utility model. Figure 3 for Figure 2An enlarged schematic diagram of the structure at point A; Figure 4 for Figure 2 An enlarged schematic diagram of the structure at point B; Figure 5 An exploded view showing the connection between the rotating rod and the limiting cover of a cash register device that utilizes a spliced LED screen for advertising and promotion, as proposed in this utility model. Figure 6 This is a top-section diagram showing the connection between the fixed column and the connecting column of a cash register device that uses a spliced LED screen for advertising and promotion, as proposed in this utility model.
[0017] Explanation of reference numerals in the attached figures: 1. Base frame; 2. Support column; 3. Placement platform; 4. Fixing plate; 5. Connecting clip; 6. Demountable advertising promotion mechanism; 601. Advertising promotion display; 602. Fixing column; 603. Connecting column; 604. Assembly port; 605. Assembly plate; 606. Adjustment groove; 607. Return spring; 608. Moving base; 609. Locking rod; 610. Locking hole; 611. Limiting slider; 612. Limiting slider 613. Limiting plate; 614. Limiting slot; 7. Information display; 8. Position adjustment mechanism; 801. Fixing slot; 802. Adjusting screw; 803. Sliding seat; 804. Auxiliary slider; 805. Auxiliary slide groove; 806. Connecting rod; 807. Rotating rod; 808. Rotating head; 809. Limiting bar; 810. Limiting cover; 811. Limiting slot; 812. Auxiliary locking rod; 813. Auxiliary slot. Detailed Implementation
[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] Reference Figure 1 , Figure 2 , Figure 3 and Figure 6This utility model provides a specific embodiment: a POS device using spliced LED screens for advertising and promotion, including a base frame 1 and an information display 7. A placement platform 3 is fixedly connected to one side of the upper end of the base frame 1, and a fixing plate 4 is fixedly connected to the other side of the upper end of the base frame 1. A connecting pin 5 is fixedly connected to the upper end of the fixing plate 4. A detachable advertising and promotion mechanism 6 is provided on one side of the connecting pin 5. A position adjustment mechanism 8 is provided between the connecting pin 5 and the information display 7. Support columns 2 are fixedly connected to the lower end of the base frame 1 near the four corners. The four support columns 2 are evenly distributed at the lower end of the base frame 1 to form a stable support system, which enhances the overall anti-tipping ability of the device, solves the problem of unstable placement and easy shaking of the equipment, provides a stable installation foundation for the placement platform 3, information display 7 and other components, and ensures smooth POS operation. The detachable advertising promotion mechanism 6 includes an advertising promotion display 601. A fixing post 602 is fixedly connected to one side of the connecting post 5. A connecting post 603 is fixedly connected to one side of the advertising promotion display 601. An assembly plate 605 is fixedly connected to one end of the connecting post 603. An assembly opening 604 is provided on one side of the connecting post 603. The assembly plate 605 is engaged in the assembly opening 604. Adjustment grooves 606 are provided on both the front and rear ends of the assembly plate 605. A return spring 607 is fixedly connected to the inner wall of the rear end of the adjustment groove 606. The front end of the return spring 607... A movable base 608 is fixedly connected, and a locking rod 609 is fixedly connected to the front end of the movable base 608. The front and rear ends of the fixed column 602 are provided with locking holes 610. The locking rod 609 is locked into the locking holes 610. The fixed column 602 and the connecting column 603 provide the assembly base respectively. The engagement of the assembly plate 605 and the assembly port 604 forms a preliminary connection. The return spring 607 in the adjusting groove 606 pushes the movable base 608 to cause the locking rod 609 to engage in the locking hole 610, thus achieving automatic locking of the advertising display 601 and solving the problem of traditional advertising groups. The problem of fixed, non-removable components and cumbersome assembly and disassembly is solved by allowing flexible replacement of advertising equipment as needed, improving operational convenience. Limiting sliders 611 are fixedly connected to both the front and rear ends of the movable base 608. Limiting grooves 612 are provided on both inner walls of the adjusting groove 606. The limiting sliders 611 are slidably positioned within the limiting grooves 612. The cooperation between the limiting sliders 611 and the limiting grooves 612 restricts the movement trajectory of the movable base 608, ensuring that the locking rod 609 extends and retracts in a straight line. This solves the problem of locking failure caused by the movable base 608 shifting during locking, ensuring the locking rod... The 609 precisely aligns with the locking hole 610, improving locking reliability. A limiting plate 613 is fixedly connected to one side of the assembly plate 605. A limiting groove 614 is opened on the inner wall of one side of the assembly port 604. The limiting plate 613 is engaged in the limiting groove 614. The engagement of the limiting plate 613 and the limiting groove 614 restricts the lateral displacement of the assembly plate 605 in the assembly port 604, solving the problem of left and right wobbling that is easily caused by fixing only by the locking rod 609. It forms a multi-dimensional fixation with the locking rod 609, improving the installation stability of the advertising display 601. Reference Figure 2 , Figure 3 , Figure 4 and Figure 5The position adjustment mechanism 8 includes a limiting cover 810 and multiple auxiliary slots 813. A fixing groove 801 is provided on one side of the connecting pin 5. An adjusting screw 802 is rotatably connected between the inner walls of the upper and lower ends of the fixing groove 801. A sliding seat 803 is threaded onto the outer wall of the adjusting screw 802. A connecting rod 806 is fixedly connected to one side of the sliding seat 803. One end of the connecting rod 806 is fixedly connected to the information display 7. The upper end of the adjusting screw 802 passes through the connecting pin 5 and is fixedly connected to a rotating rod 807. A rotating head 808 is fixedly connected to the upper end of the rotating rod 807. The adjusting screw 802 in the fixed groove 801 transmits power to the rotating rod 807 and the rotating head 808. The sliding seat 803 moves up and down along the screw due to thread engagement, and then drives the information display 7 to adjust its height synchronously through the connecting rod 806. This solves the problem of the traditional information display being fixed at a height of 7 degrees, and can adapt to the viewing needs of users of different heights, improving user comfort. The front and rear end faces and the outer walls of both sides of the rotating rod 807 are fixedly connected to the limiting strips 809. The limiting cover 810 is movably sleeved on the rotating rod 807. The inner walls of both sides and the front and rear ends of the limiting cover 810 are provided with limiting strips. A groove 811 is formed, and a limiting strip 809 is engaged within the limiting groove 811. Multiple auxiliary locking rods 812 are fixedly connected to the lower end face of the limiting cover 810. Multiple auxiliary locking slots 813 are formed on the upper end face of the connecting pin 5. The auxiliary locking rods 812 are engaged within the auxiliary locking slots 813. A circumferential fixation is achieved through the engagement of the limiting groove 811 of the limiting cover 810 with the limiting strip 809 of the rotating rod 807. The cooperation between the auxiliary locking rods 812 and the auxiliary locking slots 813 achieves axial locking, preventing the adjusting screw 802 from rotating on its own, thus solving the problem of easy loosening and displacement after height adjustment. To ensure the stable position of the information display 7 and guarantee its reliability, an auxiliary slider 804 is fixedly connected to one side of the sliding seat 803. An auxiliary groove 805 is provided on the inner wall of one side of the fixed groove 801. The auxiliary slider 804 is slidably disposed in the auxiliary groove 805. The sliding cooperation between the auxiliary slider 804 and the auxiliary groove 805 restricts the rotation tendency of the sliding seat 803, ensuring that the sliding seat 803 moves only along the axial direction of the fixed groove 801. This solves the problem that the sliding seat 803 easily rotates with the screw in the screw drive, making the information display 7 rise and fall smoothly without shaking and improving the adjustment accuracy.
[0020] Working Principle: This device achieves advertising display function through a detachable advertising promotion mechanism 6, adapts to different usage needs with the help of a position adjustment mechanism 8, and provides stable support with the base frame 1 and support column 2. Before use, first install the advertising promotion display 601: push the connecting column 603 of the advertising promotion display 601 to align the assembly plate 605 with the assembly port 604 of the fixed column 602. The limiting plate 613 of the assembly plate 605 engages with the limiting slot 614 of the assembly port 604 for initial positioning. After the locking rod 609 in the adjustment groove 606 of the assembly plate 605 is squeezed, it drives the moving seat 608 to compress the return spring 607. The limiting sliders 611 on both sides of the moving seat 608 slide along the limiting slide groove 612. After the assembly plate 605 is fully engaged, the locking rod 609 is aligned with the locking hole 610 of the fixed column 602. The return spring 607 pushes the locking rod 609 to engage. After the hole 610 is fixed, the height of the information display 7 is adjusted: the rotating head 808 drives the rotating rod 807 and the adjusting screw 802 to rotate. The sliding seat 803 on the outer wall of the adjusting screw 802 moves up and down due to the thread engagement. The auxiliary slider 804 of the sliding seat 803 slides along the auxiliary sliding groove 805 of the fixed groove 801 to prevent deviation. The sliding seat 803 drives the information display 7 to be adjusted to the target height synchronously through the connecting rod 806. Then, the limiting cover 810 is put on the rotating rod 807. The limiting groove 811 of the limiting cover 810 is engaged with the limiting strip 809 of the rotating rod 807. The auxiliary locking rod 812 at the lower end of the limiting cover 810 is engaged with the auxiliary locking groove 813 of the connecting locking post 5 to fix the height of the information display 7. When in use, the operator can perform cashier operations on the placement table 3 and view the cashier information through the information display 7. The advertising promotion display 601 displays the advertising content synchronously.
[0021] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.
[0022] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A POS device using a spliced LED screen for advertising and promotion, comprising a base frame (1) and an information display (7), characterized in that: A placement platform (3) is fixedly connected to one side of the upper end face of the base frame (1), and a fixing plate (4) is fixedly connected to the other side of the upper end face of the base frame (1). A connecting pin (5) is fixedly connected to the upper end face of the fixing plate (4). A detachable advertising promotion mechanism (6) is provided on one side of the connecting pin (5). A position adjustment mechanism (8) is provided between the connecting pin (5) and the information display (7). The detachable advertising promotion mechanism (6) includes an advertising promotion display (601), a fixing post (602) is fixedly connected to one side of the connecting post (5), a connecting post (603) is fixedly connected to one side of the advertising promotion display (601), an assembly plate (605) is fixedly connected to one end of the connecting post (603), an assembly opening (604) is provided on one side of the connecting post (603), and the assembly plate (605) is engaged in the assembly opening (604). The front and rear ends of the assembly plate (605) are provided with adjustment grooves (606). A return spring (607) is fixedly connected to the inner wall of the rear end of the adjustment groove (606). A moving seat (608) is fixedly connected to the front end of the return spring (607). A locking rod (609) is fixedly connected to the front end of the moving seat (608). A locking hole (610) is provided on the front and rear ends of the fixed column (602). The locking rod (609) is locked in the locking hole (610).
2. A POS device for advertising and promotion using a spliced LED screen according to claim 1, characterized in that: The position adjustment mechanism (8) includes a limiting cover (810) and multiple auxiliary slots (813). A fixing slot (801) is provided on one side of the connecting pin (5). An adjusting screw (802) is rotatably connected between the inner walls of the upper and lower ends of the fixing slot (801). A sliding seat (803) is threaded on the outer wall of the adjusting screw (802). A connecting rod (806) is fixedly connected to one side of the sliding seat (803). One end of the connecting rod (806) is fixedly connected to the information display (7). The upper end of the adjusting screw (802) passes through the connecting pin (5) and is fixedly connected to a rotating rod (807). A rotating head (808) is fixedly connected to the upper end of the rotating rod (807).
3. A POS device for advertising and promotion using a spliced LED screen according to claim 2, characterized in that: The front and rear ends and the outer walls of both sides of the rotating rod (807) are fixedly connected with limiting strips (809). The limiting cover (810) is movably sleeved on the rotating rod (807). The inner walls of both sides and the front and rear ends of the limiting cover (810) are provided with limiting grooves (811). The limiting strips (809) are engaged in the limiting grooves (811). The lower end face of the limiting cover (810) is fixedly connected with multiple auxiliary locking rods (812). Multiple auxiliary locking grooves (813) are opened on the upper end face of the connecting locking post (5). The auxiliary locking rods (812) are engaged in the auxiliary locking grooves (813).
4. A POS device for advertising and promotion using a spliced LED screen according to claim 2, characterized in that: An auxiliary slider (804) is fixedly connected to one side of the sliding seat (803), and an auxiliary slide groove (805) is provided on the inner wall of one side of the fixed groove (801). The auxiliary slider (804) is slidably disposed in the auxiliary slide groove (805).
5. A POS device for advertising and promotion using a spliced LED screen according to claim 1, characterized in that: The front and rear ends of the movable seat (608) are fixedly connected to the limiting slider (611), and the inner walls on both sides of the adjustment groove (606) are provided with limiting grooves (612). The limiting slider (611) is slidably disposed in the limiting groove (612).
6. A POS device for advertising and promotion using a spliced LED screen according to claim 1, characterized in that: A limiting plate (613) is fixedly connected to one side of the assembly plate (605), and a limiting groove (614) is opened on the inner wall of one side of the assembly port (604). The limiting plate (613) is engaged in the limiting groove (614).
7. A POS device for advertising and promotion using a spliced LED screen according to claim 1, characterized in that: The lower end face of the base frame (1) is fixedly connected to support columns (2) near the four corners.