A rotating mechanism for a matrix display device

Abstract

This utility model relates to the field of display device technology, specifically to a rotating mechanism for a matrix display device. It includes a central tube and several display units arranged in a matrix along the axial direction of the central tube. Each display unit includes a display screen and a rotary motor for driving the display screen to rotate around the central tube. The display screen has an inner hollow, outer polyhedral structure and is nested and mounted on the outer wall of the central tube. A mounting plate is fixedly installed inside the central tube, and the rotary motor is fixedly mounted on the mounting plate. The output end of the rotary motor is connected to a transmission gear. An annular gear ring is provided on the inner side of the display screen, and the transmission gear meshes with the annular gear ring. This utility model achieves efficient and precise driving through the vertically meshing transmission gear and annular gear ring. Combined with the clamping ring groove and rollers to form a low-friction support system, it ensures the concentricity of the display screen and the smoothness of transmission, providing a reliable mechanical foundation for smooth switching of multi-faceted content.

Description

Technical Field

[0001] This utility model relates to the field of display device technology, specifically to a rotating mechanism for a matrix display device. Background Technology

[0002] With the rapid development of digital media and intelligent display technology, matrix dynamic display devices have been widely used in commercial advertising, stage performances, public art, and information interaction. Traditional matrix display devices mostly use fixed flat screens or simple rotating structures, resulting in limited display content, narrow viewing angles, and difficulty in achieving three-dimensional, multi-faceted, and dynamic visual effects with integrated light and shadow.

[0003] To enhance expressiveness, some devices have introduced multi-faceted rotating displays that switch between different images through mechanical rotation. However, these devices generally suffer from problems such as complex structure, unstable transmission, and poor synchronization among multiple units.

[0004] In addition, existing rotating display units usually place the drive motor externally or use indirect transmission methods such as belts and linkages, which not only occupy a lot of space, but are also susceptible to environmental interference, affecting operating accuracy and lifespan. Utility Model Content

[0005] To address the problems existing in the prior art, a rotating mechanism for a matrix display device is provided. This mechanism achieves efficient and precise driving through vertically meshing transmission gears and a ring gear. Combined with a clamping ring groove and rollers, it forms a low-friction support system, ensuring the concentricity of the display screen and the smoothness of transmission, thus providing a reliable mechanical foundation for smooth switching of multi-screen content.

[0006] To address the problems of existing technologies, this utility model provides a rotating mechanism for a matrix display device, including a central tube and several display units arranged in a matrix along the axial direction of the central tube. Each display unit includes a display screen and a rotating motor for driving the display screen to rotate around the central tube. The display screen has an inner hollow and outer polyhedral structure and is nested on the outer wall of the central tube. A mounting plate is fixedly provided inside the central tube, and the rotating motor is fixedly mounted on the mounting plate. The output end of the rotating motor is connected to a transmission gear, and an annular gear ring is provided on the inner side of the display screen. The transmission gear meshes with the annular gear ring.

[0007] Preferably, each display unit also includes two clamps fixedly arranged along the axial direction of the central tube. Each clamp has an annular groove on its outer wall along its circumference. The top and bottom of the inner side of the display screen are respectively provided with multiple rollers that slide and embed into the corresponding annular grooves. The axis of each roller is parallel to the axis of the central tube.

[0008] Preferably, the display screen is composed of two half-screens joined together by bolts, and the display screen has three or more display surfaces, each display surface displaying a different image.

[0009] Preferably, the annular gear ring includes two half-ring gears. Each half-screen has a fixed plate on its inner side for mounting the corresponding half-ring gear. The two end faces of the two half-ring gears are respectively provided with positioning protrusions and positioning grooves that engage with each other. When the two half-screens are spliced ​​together to form a complete display screen, the two half-ring gears engage synchronously to form a complete annular gear ring.

[0010] Preferably, the output axis of the rotary motor is perpendicular to the central tube, the output shaft of the rotary motor extends outward through the central tube and connects to the transmission gear, and a lamp plate is fixedly provided at the bottom of the rotary motor along the axis of the central tube. One of the display surfaces of the display screen is a light-transmitting surface for transmitting the light emitted by the lamp plate.

[0011] Preferably, the central tube has two openings symmetrically arranged along its radial direction. One opening is for the transmission gear to pass through and mesh with the ring gear, and the other opening is for the lamp panel to pass through and face the light-transmitting surface of the display screen.

[0012] The advantages of this application compared to the prior art are: 1. This utility model adopts a vertical transmission structure in which the transmission gear and the ring gear mesh directly, eliminating intermediate links such as belts and chains, so as to achieve efficient and stable torque transmission and ensure that the display screen can still rotate accurately under frequent start-stop or speed change conditions.

[0013] Meanwhile, by installing an axial clamp with annular grooves on the outer wall of the central tube, and cooperating with multiple sets of rollers on the inner side of the display screen with axes parallel to the central tube, a low-friction rolling support system is formed. This system effectively bears the load and limits radial offset and axial movement, ensuring rotational concentricity and operational stability. It provides a reliable mechanical foundation for high-precision synchronous control and smooth switching of multi-display unit matrix systems.

[0014] 2. This utility model designs the display screen as a two-half-screen bolt splicing structure, which is convenient for installation and maintenance. During splicing, it ensures that the joint surfaces fit tightly, maintains the overall rigidity and shape continuity, and keeps each preset screen flat and without misalignment during rotation, realizing mechanical multi-content dynamic rotation without electronic refresh.

[0015] Meanwhile, the inner sides of the two half-screens are integrated with semi-ring gears with positioning protrusions and positioning grooves, which automatically achieve double precision positioning in the axial and circumferential directions during splicing, forming a complete ring gear with coaxial and coplanar teeth and continuous tooth shape. This effectively ensures the smoothness of transmission meshing and the uniformity of load distribution, avoiding jumping, abnormal noise or wear caused by splicing deviation, and providing a reliable structural and transmission foundation for the long-term stable and high-precision rotation of the display screen.

[0016] 3. This utility model integrates a light panel at the bottom of the rotating motor, utilizing the installation space of the rotating motor without the need for additional support, saving internal volume. At the same time, the symmetrical opening layout ensures that the transmission and lighting functions do not interfere with each other, taking into account the compactness of the mechanism, the reliability of operation, and the high-precision coordination of light and shadow images, thereby improving the display performance and system integration.

[0017] When the light panel faces the light-transmitting surface, the light from the light panel shines vertically through the opening onto the light-transmitting surface of the display screen, achieving precise point-to-point light transmission and creating a bright transmission effect. When the other non-light-transmitting surfaces face the audience, the light panel automatically turns off, effectively avoiding stray light interference. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a matrix display device according to the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the rotating mechanism of a matrix display device according to the present invention.

[0020] Figure 3 This is a three-dimensional exploded view of the lamp plate orientation of the rotating mechanism of a matrix display device according to this utility model.

[0021] Figure 4 This is a three-dimensional exploded view of the orientation of the transmission gear in the rotating mechanism of a matrix display device according to this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of the meshing transmission gear and ring gear of the rotating mechanism of a matrix display device according to this utility model.

[0023] Figure 6 This is a three-dimensional structural diagram of the half-screen of the rotating mechanism of a matrix display device according to this utility model.

[0024] Figure 7 This is a planar sectional view of the rotating mechanism of a matrix display device according to this utility model.

[0025] Figure 8 This is a three-dimensional structural cross-sectional view of the rotating mechanism of a matrix display device according to this utility model.

[0026] The following are the labels in the diagram: 1. Display device; 2. Central tube; 21. Clamp; 211. Ring groove; 212. Roller; 3. Display unit; 31. Display screen; 311. Half screen; 312. Fixing plate; 32. Rotary motor; 321. Transmission gear; 322. Ring gear; 3221. Half ring gear; 3222. Positioning protrusion; 3223. Positioning groove; 4. Mounting plate; 5. Lamp panel. Detailed Implementation

[0027] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0028] See Figures 1-5 As shown, a rotating mechanism of a matrix display device includes a central tube 2 and a plurality of display units 3 arranged in a matrix along the axial direction of the central tube 2. Each display unit 3 includes a display screen 31 and a rotary motor 32 for driving the display screen 31 to rotate around the central tube 2. The display screen 31 has a hollow inner and polyhedral outer structure and is nested on the outer wall of the central tube 2. A mounting plate 4 is fixedly provided inside the central tube 2. The rotary motor 32 is fixedly provided on the mounting plate 4. The output end of the rotary motor 32 is connected to a transmission gear 321. An annular gear ring 322 is provided on the inner side of the display screen 31, and the transmission gear 321 meshes with the annular gear ring 322.

[0029] The transmission gear 321 is specifically a bevel gear.

[0030] During the operation of the rotating mechanism of the matrix display device 1, the rotating motor 32 is started first, driving the transmission gear 321 to rotate synchronously. As the transmission gear 321 rotates, the torque is transmitted to the ring gear 322 through the meshing action between the tooth surfaces, thereby driving the entire display screen 31 to rotate smoothly around the axis of the central tube 2.

[0031] Because bevel gears offer excellent transmission smoothness and high transmission efficiency, they ensure continuous and accurate torque transmission even under frequent start-stop or speed-changing conditions, preventing slippage or phase shift. In this process, the display screen 31, as a hollow, multifaceted structure, is tightly nested within the outer wall of the central tube 2, and its rotational motion relies entirely on the meshing transmission between the bevel gear and the ring gear 322. This transmission method eliminates the need for traditional belts, chains, or connecting rods, simplifying the structure and improving transmission rigidity and response speed.

[0032] The entire rotation process is stable, precise, and efficient, laying a reliable mechanical foundation for the dynamic switching of content across multiple screens on display 31. Especially in the matrix system composed of multiple display units 3, each display unit 3 adopts the same bevel gear and ring gear 322 transmission scheme, which facilitates unified control and high-precision synchronization, thereby ensuring the consistency and visual smoothness of the overall image.

[0033] See Figures 1-5As shown, each display unit 3 also includes two clamps 21 fixedly arranged along the axial direction of the central tube 2. Each clamp 21 has an annular groove 211 on its outer wall along its circumference. The top and bottom of the inner side of the display screen 31 are respectively provided with multiple rollers 212 that slide and embed into the corresponding annular grooves 211. The axis of each roller 212 is parallel to the axis of the central tube 2.

[0034] In the rotating mechanism, each display unit 3 is equipped with two clamps 21 fixedly installed along the axial direction of the central tube 2. The clamps 21 are firmly connected to the outer wall of the central tube 2, and continuous annular grooves are opened on their outer circumferential surfaces. Multiple rollers 212 on the display screen 31 are precisely aligned and embedded in the annular grooves 211 of the corresponding clamps 21.

[0035] When the display screen 31 rotates around the central tube 2 under the action of the drive mechanism, the roller 212 rolls along the inner wall of the annular groove 211, forming a low-friction, high-stability rolling support system. This not only effectively bears the weight and dynamic load of the display screen 31, preventing radial offset or swaying during rotation, but also ensures the smoothness and concentricity of the rotation process.

[0036] Meanwhile, the cooperation between the roller 212 and the annular groove 211 restricts the axial movement of the display screen 31, enabling it to maintain a precise rotation trajectory even under high-speed or frequent start-stop conditions, providing good mechanical guidance and support for the reliable operation of the multifaceted display screen 31.

[0037] See Figures 2-6 As shown, the display screen 31 is composed of two half-screens 311 spliced ​​together by bolts. The display screen 31 has three or more display surfaces, and each display surface is set with a different image.

[0038] When the two half-screens 311 are connected by bolts, their mating surfaces fit tightly together, ensuring the overall structural rigidity and shape continuity, so that each display surface remains flat and without misalignment during the rotation display process.

[0039] As the display screen 31 rotates around the central tube 2, different display surfaces face the audience in turn, realizing the dynamic rotation of diverse information. Since each screen is independently configured and fixed on a specific display surface, the switching process does not require electronic refresh; the content change can be completed solely by mechanical rotation, combining reliability and visual novelty.

[0040] See Figures 4-8As shown, the annular gear ring 322 includes two semi-annular gears 3221. Each half-screen 311 has a fixing plate 312 fixed on its inner side for mounting the corresponding semi-annular gear 3221. The two end faces of the two semi-annular gears 3221 are respectively provided with positioning protrusions 3222 and positioning grooves 3223 that engage with each other. When the two half-screens 311 are spliced ​​together to form a complete display screen 31, the two semi-annular gears 3221 are synchronously engaged to form a complete annular gear ring 322.

[0041] During the assembly process, when the two half-screens 311 are spliced ​​together by bolts to form a complete display screen 31, the two half-ring gears 3221 on the inner side approach each other synchronously and are precisely aligned. The positioning protrusions 3222 are embedded in the corresponding positioning grooves 3223 to achieve dual axial and circumferential positioning, ensuring that the two half-ring gears 3221 are seamlessly connected and coaxial after splicing, thus forming a ring gear 322 with a continuous structure and complete tooth shape.

[0042] It not only ensures the smooth meshing and uniform load of the gear ring during transmission, but also effectively prevents transmission jumps, noise or wear caused by splicing misalignment, providing a high-precision transmission foundation for the stable rotation of the display screen 31.

[0043] See Figures 4-8 As shown, the output axis of the rotary motor 32 is perpendicular to the central tube 2. The output shaft of the rotary motor 32 extends outward through the central tube 2 and is connected to the transmission gear 321. The bottom of the rotary motor 32 is fixedly provided with a lamp plate 5 along the axial direction of the central tube 2. One of the display surfaces of the display screen 31 is a light-transmitting surface for transmitting the light emitted by the lamp plate 5.

[0044] When the display screen 31 rotates around the central tube 2 to a specific angle, one of its multiple display surfaces is directly facing the lamp panel 5. At this time, the light emitted by the lamp panel 5 penetrates the light-transmitting surface, forming a bright backlight or transmitted light effect.

[0045] When other non-transparent surfaces face the audience, the light panel 5 is in a closed or low-brightness state to avoid stray light interference. The light panel 5 is cleverly integrated into the mounting position of the rotating motor 32, eliminating the need for additional support structures. This saves space and ensures precise alignment of the light source and the translucent surface during rotation, achieving a coordinated presentation of dynamic images and fixed-point lighting effects.

[0046] See Figure 7 and Figure 8 As shown, the central tube 2 has two openings symmetrically arranged along its radial direction. One opening is for the transmission gear 321 to pass through and mesh with the annular gear ring 322, and the other opening is for the lamp plate 5 to pass through and face the light-transmitting surface of the display screen 31.

[0047] When the display screen 31 rotates to a preset angle, the light-transmitting surface is precisely aligned with the lamp panel 5 at the opening, allowing light to pass perpendicularly through the light-transmitting surface to form a clear and bright transmission effect. The two openings are arranged symmetrically in structure, which not only ensures that the transmission and lighting functions do not interfere with each other, but also optimizes the internal space layout, ensuring that the entire rotating mechanism is compact, reliable, and functionally coordinated.

[0048] This invention employs a vertical transmission structure where the transmission gear 321 and the ring gear 322 directly mesh, eliminating intermediate links such as belts and chains. This achieves efficient and stable torque transmission, ensuring precise rotation of the display screen 31 under frequent start-stop or speed-changing conditions. Simultaneously, a low-friction rolling support system is formed by the axial clamp 21 with an annular groove 211 on the outer wall of the central tube 2 and the roller 212 parallel to the axis of the central tube 2 on the inner side of the display screen 31. This effectively limits radial offset and axial movement, ensuring rotational concentricity and operational stability.

[0049] The display screen 31 adopts a two-half-screen 311 bolt splicing structure, which is convenient for assembly and maintenance. The joint surfaces fit tightly, maintaining overall rigidity and shape continuity, and realizing mechanical multi-screen dynamic switching without refresh. Its inner half-ring gear 3221 achieves axial and circumferential dual limiting through positioning protrusions 3222 and grooves. After splicing, it forms a complete coaxial and coplanar gear ring, ensuring smooth transmission and uniform load.

[0050] In addition, the light panel 5 is integrated into the bottom of the rotating motor 32. With the help of the symmetrical opening layout of the central tube 2, the light can penetrate vertically when the light-transmitting surface is aligned to form a precise transmission effect. When the non-light-transmitting surface is facing the light panel 5, the light panel 5 is automatically turned off to avoid light interference. While saving space, it achieves high-precision coordination between light and shadow and the picture, and comprehensively improves the system integration, reliability and visual performance.

[0051] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the appended claims.

Claims

1. A rotating mechanism for a matrix display device, comprising a central tube (2) and a plurality of display units (3) arranged in a matrix along the axial direction of the central tube (2); Its features are, Each display unit (3) includes a display screen (31) and a rotary motor (32) for driving the display screen (31) to rotate around the central tube (2). The display screen (31) has a hollow inner and polyhedral outer structure, and the display screen (31) is nested and installed on the outer wall of the central tube (2); The central tube (2) is fixedly provided with a mounting plate (4), and the rotary motor (32) is fixedly provided on the mounting plate (4). The output end of the rotary motor (32) is connected to a transmission gear (321). The inner side of the display screen (31) is provided with an annular gear ring (322), and the transmission gear (321) meshes with the annular gear ring (322).

2. The rotating mechanism of a matrix display device according to claim 1, characterized in that, Each display unit (3) also includes two clamps (21) fixedly arranged along the axial direction of the central tube (2). Each clamp (21) has an annular groove (211) on its outer wall along its circumference. The inner top and bottom of the display screen (31) are provided with multiple rollers (212) that slide into the corresponding annular grooves (211). The axis of each roller (212) is parallel to the axis of the central tube (2).

3. The rotating mechanism of a matrix display device according to claim 2, characterized in that, The display screen (31) is composed of two half-screens (311) spliced ​​together by bolts. The display screen (31) has three or more display surfaces, each display surface is set with a different image.

4. The rotating mechanism of a matrix display device according to claim 3, characterized in that, The annular gear ring (322) includes two half-ring gears (3221). Each half-screen (311) has a fixed plate (312) for mounting the corresponding half-ring gear (3221) on its inner side. The two half-ring gears (3221) have positioning protrusions (3222) and positioning grooves (3223) that engage with each other on their respective end faces. When the two half-screens (311) are spliced ​​together to form a complete display screen (31), the two half-ring gears (3221) engage synchronously to form a complete annular gear ring (322).

5. The rotating mechanism of a matrix display device according to claim 1, characterized in that, The output axis of the rotary motor (32) is perpendicular to the central tube (2). The output shaft of the rotary motor (32) extends outward through the central tube (2) and is connected to the transmission gear (321). The bottom of the rotary motor (32) is fixedly provided with a lamp plate (5) along the axial direction of the central tube (2). One of the display surfaces of the display screen (31) is a light-transmitting surface for transmitting the light emitted by the lamp plate (5).

6. The rotating mechanism of a matrix display device according to claim 5, characterized in that, The central tube (2) has two openings symmetrically arranged along its radial direction. One opening is for the transmission gear (321) to pass through and mesh with the ring gear (322), and the other opening is for the lamp plate (5) to pass through and face the light-transmitting surface of the display screen (31).

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