A type of color-changing combination screen

Abstract

This utility model discloses a flip-up color-changing combination screen, including a basic frame and multiple unit modules. The basic frame and unit modules are detachably connected. Each unit module includes a rotating component, a motor, and a sensor. The motor is fixedly connected to the sheet metal bracket of the basic frame. The sensor and the motor are snapped together through a sensor bracket. The rotating component includes a magnetic fixing frame and a magnet. The magnetic fixing frame has magnetic fixing holes. The magnet and the magnetic fixing frame are interference-fitted through the magnetic fixing holes. Through the interference fit structure between the magnet and the magnetic fixing holes, the magnetic sensing distance of each unit module is completely determined by the processing accuracy of the magnetic fixing holes, thus achieving a high degree of consistency and accuracy in the zero-return angle of the unit modules.

Description

Technical Field

[0001] This utility model belongs to the field of advertising display technology, specifically a flip-up color-changing combination screen. Background Technology

[0002] A flip screen, also known as a rotating screen, triangular prism screen, or flip billboard, is a type of background wall that can change its content in real time. By flipping the screen uniformly, the entire wall can switch between multiple completely different advertising devices within seconds. It is widely used in the advertising industry for exhibition background walls and other venues.

[0003] When designing a flip screen, sensors and receivers need to be designed to accurately "find the zero position," that is, to ensure that all the prisms stop accurately in the standard position, preventing the screen from being out of sync or misaligned. In existing technologies, such as the "Dynamic Background Wall" disclosed in "CN218826090U," the magnets are installed on the side of the panel structure, and the Hall sensor is fixed to the mounting back plate. The manufacturing tolerance of the mounting back plate will cause different sensing distances, resulting in different zero-return angles. Each unit also requires adjustment of the sensor height, which brings inconvenience to installation and debugging, resulting in an uneven display surface. Utility Model Content

[0004] The purpose of this utility model is to provide a flip-up color-changing combination screen to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A flip-up color-changing combination screen includes a basic frame and multiple unit modules. The basic frame and the unit modules are detachably connected. Each unit module includes a rotating component, a motor, and a sensor. The motor is fixedly connected to the sheet metal bracket of the basic frame. The sensor and the motor are snapped together through a sensor bracket. The rotating component includes a magnetic fixing frame and a magnet. The magnetic fixing frame has magnetic fixing holes. The magnet and the magnetic fixing frame are interference-fitted through the magnetic fixing holes.

[0007] In a further technical solution, the magnetic fixing bracket has a motor shaft fixing hole, and the output shaft of the motor is pressed into the magnetic fixing bracket of the rotating assembly.

[0008] In a further technical solution, the sensor bracket has an outer part and an inner part, which are integrally formed. The outer part is fixedly connected to the motor by screws. The inner part has a dovetail groove, and the sensor is inserted into the dovetail groove. The surface of the sensor is provided with friction threads.

[0009] In a further technical solution, the rotating assembly includes a shaft frame and a column frame, the shaft frame is located between the motor and the column frame, the shaft frame and the column frame are detachably connected, and the magnetic fixing bracket is fixedly connected to the shaft frame.

[0010] In a further technical solution, the magnetic fixing bracket is provided with an M3 screw hole, the column frame is provided with a screw through hole, the column frame is provided with a self-tapping screw, and the self-tapping screw passes through the screw through hole and is threadedly connected to the M3 screw hole.

[0011] In a further technical solution, the rotating component also includes multiple decorative panels, each decorative panel being provided with a buckle, and both the shaft frame and the column frame being provided with a fastening position. The buckle engages with the fastening position, and the decorative panel is detachably connected to the shaft frame and the column frame.

[0012] In a further technical solution, the basic frame includes a pressure plate, the sheet metal bracket has a locking position, the pressure plate has a locking part, and the locking part locks into the locking position.

[0013] The beneficial effects of this utility model are:

[0014] This invention aligns a magnet with the magnetic fixing holes on a plastic magnetic fixing frame with a certain degree of elasticity. Utilizing the elastic deformation characteristics of the plastic itself, it is directly and forcefully pressed in, achieving a tight interference fit between the magnet and the fixing hole. No tools are needed during the pressing process, allowing operators to quickly complete the process manually or with simple fixtures. Once pressed in, the magnet is firmly held in place by the plastic walls surrounding the fixing hole, making installation extremely simple and reliable. Through the interference fit structure between the magnet and the fixing hole, the magnet sensing distance of each unit module is entirely determined by the machining accuracy of the fixing hole, no longer affected by the tolerance of the mounting backplate or manual adjustment. This achieves high consistency and accuracy of the zero-return angle of the unit modules, resulting in sensitive and stable sensing response. It avoids the tedious process of adjusting the height of each Hall sensor individually, improving the efficiency of batch installation and debugging. Furthermore, the magnet remains fixed and does not loosen or fall off, ensuring accurate image flipping during long-term operation of the dynamic background wall, improving the product's display effect and reliability.

[0015] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] Figure 1 The overall structure of this utility model Figure 1 .

[0017] Figure 2 The overall structure of this utility model Figure 2 .

[0018] Figure 3 Partial structural diagram of this utility model.

[0019] Figure 4 The present utility model Figure 3 Enlarged view of part A.

[0020] Figure 5 The structural diagram of the sheet metal bracket, pressure plate and unit module of this utility model.

[0021] Figure 6 : Exploded view of the sheet metal bracket, pressure plate and unit module of this utility model.

[0022] Figure 7 The structure of the shaft frame and magnetic fixing bracket of this utility model Figure 1 .

[0023] Figure 8 The structure of the shaft frame and magnetic fixing bracket of this utility model Figure 2 .

[0024] Reference numerals: 1. Decorative panel; 2. Buckle; 3. Column frame; 4. Shaft frame; 5. Buckle position; 6. Magnet; 7. Motor; 8. Magnetic mounting bracket; 9. Sensor; 10. Sensor bracket; 101. External connection; 102. Internal connection; 1021. Dovetail groove; 11. Locking position; 12. Screw through hole; 13. Positioning post; 14. Self-tapping screw; 18. Motor shaft fixing hole; 19. Magnetic fixing hole; 20. Positioning hole; 21. M3 screw hole; 23. Basic frame; 231. Sheet metal bracket; 232. Pressure plate; 2321. Locking part Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Please refer to Figure 1-8 ;

[0027] To increase brand awareness and disseminate information, more and more people are choosing to use background walls for advertising. Background walls are typically manufactured using molds, which are usually formed in single rows and require manual mold changes, resulting in high time costs and adjustments each time. Furthermore, movable molds require excessively large installation areas and have unstable performance. Therefore, to allow for real-time changes to screen colors or patterns, and to adapt the decor to different styles, enhancing visual appeal and display performance, existing technologies, such as the "Dynamic Background Wall" disclosed in patent document "CN218826090U," have introduced background walls composed of rotatable screens. However, existing background walls have several problems. Magnets are installed on the side of the panel structure, and Hall effect sensors are fixed to the mounting backplate. Tolerances in the production of the mounting backplate cause variations in sensing distance, leading to different zero-return angles. Each unit also requires sensor height adjustment, causing inconvenience in installation and debugging, resulting in uneven display surfaces.

[0028] Therefore, this embodiment discloses a flip-up color-changing combination screen, which aims to calibrate the zero-return angle. Specifically, it includes a basic frame 23 and multiple unit modules. In this embodiment, the basic frame 23 includes a base plate and a horizontal plate, which are connected by screws. There are four horizontal plates, which are composed of multiple sheet metal brackets 231. The basic frame 23 and the unit modules are detachably connected. The sheet metal brackets 231 correspond one-to-one with the unit modules. More specifically, the unit module includes a rotating component, a motor 7, and a sensor 9. The motor 7 is fixedly connected to the sheet metal brackets 231 of the basic frame 23 by screws. The sensor 9 is snapped into the motor 7 through a sensor bracket 10. The rotating component includes a magnetic fixing frame 8 and a magnet 6. In this embodiment, the structure of the magnet 6 is not limited. The magnetic fixing frame 8 is provided with magnetic fixing holes 19. The magnet 6 and the magnetic fixing frame 8 are interference-fitted through the magnetic fixing holes 19.

[0029] During assembly, the magnet 6 is aligned with the magnetic fixing hole 19 on the elastic plastic magnetic fixing bracket 8, and is directly pressed in using the elastic deformation properties of the plastic itself. This achieves a tight interference fit between the magnet 6 and the magnetic fixing hole 19. No tools are needed during the pressing process, allowing operators to complete the task quickly using only manual or simple tooling. Once pressed in, the magnet 6 is firmly held in place by the plastic walls surrounding the magnetic fixing hole 19, making installation extremely simple and reliable. The interference fit structure ensures that the sensing distance of the magnet 6 in each unit module is entirely determined by the machining accuracy of the magnetic fixing hole 19, and is no longer affected by the tolerance of the mounting back plate or manual adjustment. This achieves high consistency and accuracy of the zero-return angle of the unit modules, and the sensing response is sensitive and stable. It avoids the tedious process of adjusting the height of the Hall sensor 9 one by one in the traditional way, and improves the efficiency of batch installation and debugging. At the same time, the magnet 6 will not loosen or fall off after being fixed, ensuring accurate screen flipping during long-term operation of the dynamic background wall, and improving the product's display effect and reliability.

[0030] Furthermore, in the existing technology "CN218826090U", the motor shaft is fixed to the panel structure by screwing screws into the screw holes on the side of the motor shaft. However, the screws are driven into the plastic parts. Because plastic is elastic and the threaded contact area is small, prolonged forward and reverse rotation will cause the threads to strip, resulting in the back panel structure becoming loose and falling off.

[0031] In this embodiment, the magnetic fixing bracket 8 has a motor shaft fixing hole 18. The output shaft of the motor 7 is pressed into the magnetic fixing bracket 8 of the rotating component. The output shaft of the motor 7 is pressed into the motor shaft fixing hole 18 inside the magnetic fixing bracket 8. By utilizing the elastic properties of plastic, it prevents loosening and falling off during the rotation process. It does not require side screw fixing, which is simple, quick and effective.

[0032] In this embodiment, the sensor bracket 10 includes an outer part 101 and an inner part 102, which are integrally formed. The motor 7 has a threaded hole. The outer part 101 is connected to the threaded hole of the motor 7 by screws, so that the outer part 101 is fixedly connected to the motor 7. The inner part 102 has a dovetail groove 1021. The sensor 9 is inserted into the dovetail groove 1021. The surface of the sensor 9 is provided with friction threads. The sensor 9 is fixed on the sensor bracket 10 by pressure. Utilizing the elasticity of plastic, the friction threads on the surface of the sensor 9 are pressed in, resulting in a large friction force, preventing loosening during the later rotation process, making the sensor 9 accurately positioned, and ensuring that the sensing angle of each unit module is accurate and consistent, and easy to install.

[0033] In this embodiment, the rotating assembly includes a shaft frame 4 and a column frame 3. The shaft frame 4 is located between the motor 7 and the column frame 3. The shaft frame 4 and the column frame 3 are detachably connected. The magnetic fixing bracket 8 is fixedly connected to the shaft frame 4. The column frame 3 is provided with a stabilizing bracket. The output shaft of the motor 7 is coaxially connected to the stabilizing bracket, so that the motor 7 can transmit torque to both the shaft frame 4 and the column frame 3 at the same time.

[0034] In this embodiment, the magnetic fixing bracket 8 has an M3 screw hole 21, the column frame 3 has a screw through hole 12, and the column frame 3 is equipped with a self-tapping screw 14. In this embodiment, the M3 self-tapping screw 14 is selected. The M3 self-tapping screw 14 passes through the screw through hole 12 and is threadedly connected to the M3 screw hole 21, so that the shaft frame 4 and the column frame 3 are assembled. The contact surface between the column frame 3 and the shaft frame 4 is provided with 6 positioning pins 13, which are inserted into the positioning holes 20 of the shaft frame 4 and the column frame 3 respectively, to ensure that the splicing surface of the column frame 3 and the shaft frame 4 has high flatness, prevents misalignment, and has high bonding strength.

[0035] In this embodiment, the rotating assembly also includes multiple decorative panels 1. In this embodiment, the shape of the decorative panels 1 is not limited to square or rectangular, rounded or right-angled. The decorative panels 1 are provided with buckles 2, and the shaft frame 4 and the column frame 3 are both provided with buckle positions 5. The buckles 2 and buckle positions 5 are engaged. The decorative panels 1 are detachably connected to the shaft frame 4 and the column frame 3. The four buckle positions 5 on the back of the decorative panels 1 are pressed onto the buckle positions 5 of the column frame 3 and the shaft frame 4 respectively during assembly, making disassembly and assembly convenient. For example, if one side needs to be changed in color or pattern, the operator can simply pry it off.

[0036] In this embodiment, the basic frame 23 includes a wire pressing plate 232, the sheet metal bracket 231 has a locking position 11, the wire pressing plate 232 is provided with a locking part 2321, the locking part 2321 is locked with the locking position 11, and the wire pressing plate 232 prevents the rotating component from getting tangled in the wire when rotating.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flip-up color-changing combination screen, characterized in that, The system includes a basic frame (23) and multiple unit modules. The basic frame (23) and the unit modules are detachably connected. Each unit module includes a rotating component, a motor (7), and a sensor (9). The motor (7) is fixedly connected to the sheet metal bracket (231) of the basic frame (23). The sensor (9) and the motor (7) are snapped together by a sensor bracket (10). The rotating component includes a magnetic fixing bracket (8) and a magnet (6). The magnetic fixing bracket (8) is provided with a magnetic fixing hole (19). The magnet (6) and the magnetic fixing bracket (8) are interference-fitted through the magnetic fixing hole (19).

2. The color-changing combination screen according to claim 1, characterized in that, The magnetic fixing bracket (8) has a motor shaft fixing hole (18), and the output shaft of the motor (7) is pressed into the magnetic fixing bracket (8) of the rotating assembly.

3. The color-changing combination screen according to claim 1, characterized in that, The sensor bracket (10) includes an outer part (101) and an inner part (102). The outer part (101) and the inner part (102) are integrally formed. The outer part (101) is fixedly connected to the motor (7) by screws. The inner part (102) is provided with a dovetail groove (1021). The sensor (9) is inserted into the dovetail groove (1021). The surface of the sensor (9) is provided with friction threads.

4. A color-changing combination screen according to claim 1, characterized in that, The rotating assembly includes a shaft frame (4) and a column frame (3). The shaft frame (4) is located between the motor (7) and the column frame (3). The shaft frame (4) and the column frame (3) are detachably connected. The magnetic fixing bracket (8) is fixedly connected to the shaft frame (4).

5. A color-changing combination screen according to claim 4, characterized in that, The magnetic fixing bracket (8) has an M3 screw hole (21), the column frame (3) has a screw through hole (12), the column frame (3) is provided with a self-tapping screw (14), and the self-tapping screw (14) passes through the screw through hole (12) and is threadedly connected to the M3 screw hole (21).

6. A color-changing combination screen according to claim 5, characterized in that, The rotating assembly also includes multiple decorative panels (1), each decorative panel (1) is provided with a buckle (2), the shaft frame (4) and the column frame (3) are both provided with a buckle (5), the buckle (2) and the buckle (5) are engaged, and the decorative panel (1) is detachably connected to the shaft frame (4) and the column frame (3).

7. A color-changing combination screen according to claim 1, characterized in that, The basic frame (23) includes a pressure plate (232), the sheet metal bracket (231) has a locking position (11), the pressure plate (232) is provided with a locking part (2321), and the locking part (2321) is locked with the locking position (11).

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