Power mechanism for three-dimensional animation display and three-dimensional animation display device

Abstract

The three-dimensional animation display power mechanism comprises a power output part and a transmission part, a plurality of 3D models are formed on a display wheel disc, the power output part comprises a power wheel, the axis of the power wheel is parallel to the axis of the display wheel disc, and the transmission part comprises a driven wheel and a transmission cam group. On one hand, on the basis of the 3D printing model, the two-dimensional or three-dimensional animation effect watched by naked eyes is met under the same-direction and intermittent picture splicing, and meanwhile, the 3D model can be replaced, so that the displayed content is rich, and the practicability is high; on the other hand, software control is not needed, and only intermittent rotation of the display wheel disc needs to be achieved, so that implementation and batch production are more convenient, meanwhile, implementation can be achieved by manually shifting the power wheel to rotate, the field body feeling of a user is greatly improved, the user is attracted, and meanwhile development of multi-dimensional animation display is promoted; and the method is particularly suitable for industries such as children toys, 3D printing and travel souvenirs.

Description

Technical Field

[0001] The utility model belongs to the technical field of animation display, and specifically relates to a power mechanism for three-dimensional animation display, and also relates to a three-dimensional animation display device. Background Art

[0002] 3D printing has become quite popular, and it is mainly used for industrial parts, cultural and tourism souvenirs, children's toys, etc. The public is more exposed to toys and cultural and tourism souvenirs, and currently they are mainly three-dimensional objects, three-dimensional cartoon elements and children's toys, which are relatively traditional and fail to fully play the advantages of three-dimensional printing.

[0003] However, existing display devices are basically two-dimensional or three-dimensional static ornaments, in which the ornaments themselves form different states of display based on joint movements. Therefore, there are the following technical defects:

[0004] 1. It is impossible to perform dynamic display based on 3D printed models, resulting in a single display content and unable to meet the effects of two-dimensional or three-dimensional animation for naked eye viewing;

[0005] 2. All 3D displays need to be based on the cooperation of 3D models and software. In short, to make a simple box opening and closing animation, first create a box model, and then set the key frames of the box's opening and closing states at different time points. The software will automatically calculate the intermediate transition frames to form an animation. Therefore, it must rely on software control to be implemented, which in turn limits the development of animation displays. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an improved power mechanism for three-dimensional animation display.

[0007] At the same time, the utility model also relates to a three-dimensional animation display device.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0009] A power mechanism for three-dimensional animation display, which is used to drive the display wheel to intermittently rotate, and includes a power output component and a transmission component for connecting the power output component to the display wheel. In particular,

[0010] A plurality of 3D models with different shapes are formed on the display wheel and can be connected in the same direction of rotation to form a complete dynamic display; the power output component includes a power wheel whose axis is parallel to the axis of the display wheel, and the transmission component includes a driven wheel coaxial with the display wheel and a transmission cam group for connecting the driven wheel with the power wheel, wherein the transmission cam group can form intermittent engagement and disengagement with the driven wheel, and during the continuous power output of the power wheel, the transmission cam group intermittently cooperates with the driven wheel so that the driven wheel rotates synchronously with the power wheel, and the rotation direction is the same as the direction required for the connection of the rotating picture of the display wheel.

[0011] According to a specific implementation and preferred aspect of the utility model, the driven wheel and the power wheel form a primary transmission by a transmission cam group; the driven wheel is a groove wheel with multiple groups of wheel grooves distributed in the circumferential direction, wherein the wheel grooves are evenly spaced around the circumference of the groove wheel; the transmission cam group includes a cam that can match the groove wheel and a transmission wheel coaxially arranged with the cam, wherein the transmission wheel is synchronously connected with the power wheel, and the cam is matched and disengaged with the groove wheel to drive the driven wheel to intermittently rotate. A simple primary transmission relationship is used to complete the power drive with complete dynamic display.

[0012] Preferably, each group of wheel grooves includes matching wheel grooves and pin grooves, and the transmission cam group also includes an eccentric pin provided on the transmission wheel, wherein the eccentric pin can match the pin groove, and when both the cam and the eccentric pin match the wheel groove, the power wheel and the driven wheel are synchronized. In short, the dual combination of cam matching and eccentric structure is adopted to more simply realize the required clutch, which is completely independent of program control, thereby optimizing the structure and can be manually operated to increase the user's physical feeling.

[0013] In some specific embodiments, the transmission wheel and the power wheel are engaged with each other; and / or the transmission ratio between the power wheel and the transmission wheel is 2 to 10: 1. In this way, the power wheel can be driven to rotate at a speed that is comfortable for manual rotation, so as to achieve a slow rotation and fast transmission effect.

[0014] Preferably, the number of sheave groups is equal to the number of 3D models.

[0015] According to another specific implementation and preferred aspect of the utility model, the driven wheel and the power wheel form a multi-stage transmission by a transmission cam group, and the multi-stage transmission includes a multi-stage transmission wheel, a transmission cam and a groove wheel that form intermittent matching synchronization or disengagement, wherein the driven wheel is synchronized with the power wheel based on the synchronization between the transmission cam and the groove wheel. The multi-stage transmission is mainly used to consider the number of screens required to display different 3D models, and to form a 3D dynamic display in the best and most comprehensive way.

[0016] Preferably, the multi-stage transmission wheel includes a first transmission wheel synchronized with the power wheel and a second transmission wheel synchronized with the driven wheel, wherein the transmission cam is coaxial with the first transmission wheel, and the second transmission wheel is coaxial with the groove wheel; the power wheel, the first transmission wheel, the second transmission wheel, and the driven wheel are all gears, wherein the transmission ratio between the power wheel and the first transmission wheel is 2 to 5:1; the transmission ratio between the driven wheel and the second transmission wheel is 2 to 5:1. Of course, the transmission ratio parameters can be adjusted according to actual needs to meet the dynamic display needs under multi-stage transmission.

[0017] In some specific embodiments, the groove wheel has multiple groups of wheel grooves, each group of wheel grooves includes matching wheel grooves and pin grooves, the transmission cam matches the groove wheel, and an eccentric pin matching the pin groove is formed on the transmission cam. When the eccentric pin matches the pin groove, the power wheel and the driven wheel are synchronized.

[0018] Preferably, the number of 3D models = the number of sheave groups × the transmission ratio between the driven wheel and the second transmission wheel, so as to increase the practicality of the display under multi-stage transmission.

[0019] Another technical solution of the utility model is: a three-dimensional animation display device, which includes a device box, a display wheel and the above-mentioned power mechanism.

[0020] Another technical solution of the utility model is: a three-dimensional animation display device, which includes a device box, a display wheel, the above-mentioned power mechanism, a light source that is synchronously triggered by the rotation of the 3D model displayed on the display wheel to provide lighting assistance when the 3D model stops, and a hand crank assembly installed on the device box and connected to the power wheel.

[0021] Due to the implementation of the above technical solution, the utility model has the following advantages compared with the prior art:

[0022] The existing 3D model display cannot be dynamically displayed based on the 3D printed model, resulting in a single display content and failing to meet the effects of two-dimensional or three-dimensional animation viewed with the naked eye; at the same time, all 3D displays need to be based on the cooperation of 3D models and software, that is, to make a simple box opening and closing animation, first create a box model, and then set key frames for the opening and closing states of the box at different time points, and the software will automatically calculate the intermediate transition frames to form an animation. Therefore, it must rely on software control to be implemented, which in turn limits the development of animation displays and other shortcomings. The present application comprehensively designs the power mechanism for three-dimensional animation displays, cleverly solving the shortcomings and defects of the prior art. After adopting this mechanism, during the continuous power output of the power wheel, the transmission cam group intermittently cooperates with the driven wheel The driven wheel rotates synchronously with the power wheel, so that multiple 3D models with different shapes formed on the display wheel can be connected in the same direction of rotation to form a complete dynamic display. Therefore, on the one hand, the utility model is based on the 3D printed model, and under the same direction and intermittent picture splicing, it can meet the two-dimensional or three-dimensional animation effect viewed by the naked eye, and the 3D model can be replaced, so that the displayed content is rich and practical; on the other hand, there is no need to adopt software control, as long as the intermittent rotation of the display wheel is achieved. Therefore, it is more convenient to implement and mass produce, and it can be implemented by manually turning the power wheel to rotate, which greatly increases the user's on-site physical sense, attracts users, and promotes the development of multi-dimensional animation displays. In addition, it is particularly suitable for children's toys, 3D printing, cultural and tourism souvenirs and other industries. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a three-dimensional animation display device of Example 1;

[0024] Figure 2 for Figure 1 Schematic diagram of structural decomposition;

[0025] Figure 3 for Figure 2 An enlarged schematic diagram of the structure of the power mechanism;

[0026] Figure 4 for Figure 3 An enlarged schematic diagram of the middle transmission cam structure;

[0027] Figure 5 This is a schematic diagram of the structure of a three-dimensional animation display device according to Embodiment 2;

[0028] Figure 6 for Figure 5 Schematic diagram of structural decomposition;

[0029] Figure 7 for Figure 5 Schematic diagram of top view;

[0030] Figure 8for Figure 7 AA section view;

[0031] Among them: 1. box; 10. box base; 11. box cover;

[0032] 2. Display roulette; 20. Gap;

[0033] 3. Power mechanism; 30. Power output component; 300. Power wheel; 31. Transmission component; 310. Driven wheel; 311. Transmission cam group; a. Multi-stage transmission wheel; a1. First transmission wheel; a2. Second transmission wheel; b. Transmission cam; c. Groove wheel; c1. Wheel groove; c10. Matching wheel groove; c11. Pin groove; d, g. Eccentric pin; e. Cam; f. Transmission wheel;

[0034] 4. 3D model;

[0035] 5. Atmosphere lamps (light sources);

[0036] 6. Hand crank assembly; 6a. Wheel; 6b. Handle; 60. Hand crank. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In the present application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0042] Example 1

[0043] like Figures 1 to 4 As shown, the three-dimensional animation displayer of this embodiment includes a device box 1, a display wheel 2, a power mechanism 3, a 3D model 4, an atmosphere lamp (light source) 5 that is synchronously triggered by the rotation of the 3D model 4 displayed on the display wheel 2 to provide lighting assistance when the 3D model stops, and a hand crank assembly 6 installed on the device box 1.

[0044] Specifically, the device box 1 includes a box seat 10 and a box cover 11, the power mechanism 3 is installed in the box seat 10, the 3D model 4 has different shapes and can be connected in the same direction of rotation to form a complete dynamic display and can be assembled and disassembled on the display wheel 2, the atmosphere lamp 5 is used to provide lighting assistance, and the hand crank assembly 6 is mainly used for the power source of the power mechanism 3, that is, manual control.

[0045] In some specific embodiments, the power mechanism 3 is used to drive the display wheel 2 to rotate intermittently, and includes a power output component 30 and a transmission component 31 for connecting the power output component 30 to the display wheel 2, wherein the power output component 30 includes a power wheel 300 whose axis is parallel to the display wheel 2, and the transmission component 31 includes a driven wheel 310 coaxial with the display wheel 2, and a transmission cam group 311 for connecting the driven wheel 310 to the power wheel 300, wherein the transmission cam 311 group can form an intermittent fit and disengagement with the driven wheel 310, and during the continuous power output of the power wheel 300, the transmission cam group 311 intermittently cooperates with the driven wheel 310 so that the driven wheel 310 rotates synchronously with the power wheel 300, and the rotation direction is the same as the direction required for the display wheel 2 to rotate.

[0046] In this example, the driven wheel 310 and the power wheel 300 form a multi-stage transmission by the transmission cam group 311, and the multi-stage transmission includes a multi-stage transmission wheel a, a transmission cam b and a groove wheel c that form intermittent matching synchronization or disengagement, wherein the driven wheel 310 is synchronized with the power wheel 300 based on the synchronization between the transmission cam b and the groove wheel c. The multi-stage transmission is mainly used to consider the number of screens required to display different 3D models, and to form a 3D dynamic display in the best and most comprehensive way.

[0047] The multi-stage transmission wheel a includes a first transmission wheel a1 synchronized with the power wheel 300 and a second transmission wheel a2 synchronized with the driven wheel 310, wherein the transmission cam b is coaxial with the first transmission wheel a1, and the second transmission wheel a2 is coaxial with the groove wheel c; the power wheel 300, the first transmission wheel a1, the second transmission wheel a2, and the driven wheel 310 are all gears, wherein the transmission ratio between the power wheel 300 and the first transmission wheel a1 is 2 to 5:1; the transmission ratio between the driven wheel 310 and the second transmission wheel a2 is 2 to 5:1. Of course, the transmission ratio parameters can be adjusted according to actual needs to meet the dynamic display needs under multi-stage transmission. The groove wheel c has multiple groups of wheel grooves c1, each group of wheel grooves c1 includes matching wheel grooves c10 and pin grooves c11, the transmission cam b matches the groove wheel, and an eccentric pin d matching the pin groove c11 is formed on the transmission cam b. When the transmission cam b and the eccentric pin d are both docked with the matching wheel groove c10 and the pin groove c11 (or the eccentric pin d and the pin groove c11 match), the power wheel 300 and the driven wheel 310 are synchronized.

[0048] In this example, the number of 3D models = the number of sheave groups × the transmission ratio between the driven wheel and the second transmission wheel. This increases the practicality of the display under multi-stage transmission. Specifically, the number of 3D models 4 (number of images) is 9, the number of sheave groups is 3, and the transmission ratio between the driven wheel and the second transmission wheel is 3, that is, 9 = 3*3; similarly: when the three-sheave mechanism is used, when the second group gear ratio is 4:1, the number of images = 3*4 = 12; when the four-sheave mechanism is used, when the second group gear ratio is 3:1, the number of images = 4*3 = 12.

[0049] In addition, for the atmosphere lighting fixture 5, the display wheel 2 is provided with notches 20 corresponding to the number of the images. The atmosphere lighting fixture 5 includes a photoelectric switch 50 provided on the movement path of the notch 20, a lamp holder 50 installed on the box cover 11, an LED lamp (other lamps can also be arranged) arranged on the lamp holder 50, and a power supply component, wherein the circuit is controlled by the photoelectric switch 50 to implement synchronization. Specifically, when the notch 20 is aligned with the photoelectric switch 50, the photoelectric switch 50 turns on the circuit; when other parts of the display wheel 2 are aligned with the photoelectric switch 50, the photoelectric switch 50 turns on the circuit. Therefore, the synchronous control can be simply implemented.

[0050] In this example, the hand crank assembly 6 includes a hand crank 60 installed on the box cover 11 and capable of driving the power wheel 300 to rotate. Therefore, power can be provided by shaking the hand crank 60 to increase the user's physical sensation (at the same time, it should be noted that the hand crank assembly 6 is not necessary and can also be implemented by electric drive).

[0051] Therefore, in this embodiment, under the continuous power output of the hand crank 60, the transmission cam group 311 intermittently cooperates with the driven wheel 310 to make the driven wheel 310 rotate synchronously with the power wheel 300, so that multiple 3D models 4 with different shapes formed on the display wheel 2 can be connected in the same direction of rotation to form a complete dynamic display.

[0052] Example 2

[0053] like Figures 5 to 8 As shown, the three-dimensional animation display device of this embodiment includes a device box 1, a display wheel 2, a power mechanism 3, a 3D model 4 and a hand crank assembly 6 installed on the device box 1.

[0054] Specifically, the device box 1 includes a box seat 10 and a box cover 11, the power mechanism 3 is installed in the box seat 10, the 3D model 4 has different shapes and can be connected in the same direction of rotation to form a complete dynamic display and can be assembled and disassembled on the display wheel 2, and the hand crank assembly 6 is mainly used as the power source of the power mechanism 3, that is, manual control.

[0055] In some specific embodiments, the power mechanism 3 is used to drive the display wheel 2 to rotate, and includes a power output component 30 and a transmission component 31 for connecting the power output component 30 to the display wheel 2, wherein the power output component 30 includes a power wheel 300 whose axis is parallel to the display wheel 2, and the transmission component 31 includes a driven wheel 310 coaxial with the display wheel 2, and a transmission cam group 311 for connecting the driven wheel 310 to the power wheel 300, wherein the transmission cam group 311 can form an intermittent fit and disengagement with the driven wheel 310, and during the continuous power output of the power wheel 300, the transmission cam group 311 intermittently cooperates with the driven wheel 310 so that the driven wheel 310 rotates synchronously with the power wheel 300, and the rotation direction is the same as the direction required for the display wheel 2 to rotate and connect the picture.

[0056] In some specific embodiments, the driven wheel 310 and the power wheel 300 form a primary transmission by a transmission cam group 311. Specifically, the driven wheel 310 is a groove wheel with multiple groups of wheel grooves c1 distributed in the circumferential direction, wherein the wheel grooves c1 are evenly spaced around the circumference of the groove wheel; the transmission cam group 311 includes a cam e that can match the groove wheel and a transmission wheel f coaxially arranged with the cam e, wherein the transmission wheel f is synchronously connected with the power wheel 300, and the cam e is matched and disengaged with the groove wheel to drive the driven wheel 310 to intermittently rotate. A simple primary transmission relationship is used to complete the power drive of the complete dynamic display.

[0057] In this example, each group of wheel grooves c1 includes a matching wheel groove c10 and a pin groove c11, and the transmission cam group 311 also includes an eccentric pin g provided on the transmission wheel f, wherein the eccentric pin g can match the pin groove c11, and when the cam e and the eccentric pin g are both docked with the matching wheel groove c10 and the pin groove c11 (or when the eccentric pin g and the pin groove c11 match), the power wheel 300 and the driven wheel 310 are synchronized. In short, the dual combination of cam matching and eccentric structure is adopted to more simply realize the required clutch, which is completely independent of program control, and further optimizes the structure, and can be manually operated to increase the user's physical sense.

[0058] Furthermore, the transmission wheel f and the power wheel 300 are meshed with gears; and / or the transmission ratio between the power wheel 300 and the transmission wheel f is 2 to 10:1. This can save effort to drive the power wheel to rotate, so as to achieve a slow rotation and fast transmission effect. The number of groups of the sheave c1 and the number of 3D models are equal to 6.

[0059] In addition, the hand crank assembly 6 in this example includes a wheel disc 6a coaxial with the power wheel 300 and a handle 6b located on one side of the wheel disc 6a (at the same time, it should be noted that the hand crank assembly 6 is not necessary and can also be implemented by electric drive).

[0060] Therefore, in this embodiment, when the handle 6b drives the wheel 6a and the power wheel 300 to continuously output power, the transmission cam group 311 intermittently cooperates with the driven wheel 310 to make the driven wheel 310 rotate synchronously with the power wheel 300, so that multiple 3D models 4 with different shapes formed on the display wheel 2 can be connected in the same direction of rotation to form a complete dynamic display.

[0061] In summary, the utility model is based on a 3D printing model on the one hand, and under the same direction and intermittent picture splicing, it can meet the two-dimensional or three-dimensional animation effect watched by the naked eye, and the 3D model can be replaced, so that the displayed content is rich and practical; on the other hand, there is no need to adopt software control, as long as the intermittent rotation of the display wheel is realized (whether manual or automatic), therefore, it is more convenient to implement and mass produce, and it can be implemented by manually turning the power wheel to rotate, which greatly increases the user's on-site physical sense, attracts users, and promotes the development of multi-dimensional animation display. In addition, it is particularly suitable for children's toys, 3D printing, cultural tourism souvenirs and other industries; thirdly, based on the number of pictures required to be displayed by different 3D models, one-stage or multi-stage transmission can be adopted, and when more frames are needed to increase the animation market and fluency, a set of gear sets is added behind the groove wheel, and the gear sets are fixedly connected or integrally formed with the groove wheel and the impact disk respectively. At this time, the groove wheel preferably selects the 3-groove wheel, and the stop ratio of the 3-groove wheel is larger, and the image presented is clearer and smoother, but When there are limitations on size, structural factors, etc., 4-6 groove wheels can also be selected. At this time, the number of images has a fixed relationship with the transmission ratio of the groove wheel mechanism and the second group of gears, and the tooth ratio of the second group of gears is a positive integer; fourthly, the number of images = the number of matching wheel grooves * the tooth ratio of the second group of gears (the number of teeth on the affecting plate: the number of teeth on the groove wheel), that is, when the number of matching wheel grooves is 3, the tooth ratio of the second group of gears is 3, the number of images on the image plate = 3*3=9, similarly: for a three-groove wheel mechanism, when the second group tooth ratio is 4:1, the number of images = 3*4 =12, similarly: for the four-slot wheel mechanism, when the second group gear ratio is 3:1, the number of images = 4*3 = 12, to meet different usage needs; in the fifth aspect, in order to increase the viewing effect, a power supply, a light source and a photoelectric switch (proximity switch or contact switch) can be added. The power supply provides energy to the photoelectric switch and the light source. When the photoelectric switch detects that the image disk has stopped, it gives a control signal. At this time, the light source is turned on to illuminate the image on the disk. When the image disk rotates, the light source is extinguished to achieve self-rotation synchronous lighting to assist the atmosphere and enhance the display experience.

[0062] The above detailed description of the utility model is intended to enable people familiar with the technology in this field to understand the content of the utility model and implement it. It is not intended to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A power mechanism for three-dimensional animation display, which is used to drive the display wheel to intermittently rotate, and includes a power output component and a transmission component for connecting the power output component to the display wheel, characterized in that: The display wheel forms a plurality of 3D models with different shapes and can be connected while rotating in the same direction to form a complete dynamic display; The power output component includes a power wheel whose axis is parallel to the axis of the display wheel, and the transmission component includes a driven wheel coaxial with the display wheel and a transmission cam group for transmission connection between the driven wheel and the power wheel, wherein the transmission cam group can form intermittent cooperation and disengagement with the driven wheel, and during the continuous power output of the power wheel, the transmission cam group intermittently cooperates with the driven wheel so that the driven wheel rotates synchronously with the power wheel, and the rotation direction is the same as the direction required for the display wheel to rotate the picture.

2. The power mechanism for three-dimensional animation display according to claim 1, characterized in that: The driven wheel and the power wheel form a primary transmission by the transmission cam group; the driven wheel is a groove wheel with multiple groups of wheel grooves distributed in the circumferential direction, wherein the wheel grooves are evenly spaced around the circumference of the groove wheel; the transmission cam group includes a cam capable of matching with the groove wheel and a transmission wheel coaxially arranged with the cam, wherein the transmission wheel is synchronously connected with the power wheel, and the cam matches and disengages with the groove wheel to drive the driven wheel to intermittently rotate.

3. The power mechanism for three-dimensional animation display according to claim 2 is characterized in that: Each group of the wheel grooves includes matching wheel grooves and pin grooves, and the transmission cam group also includes an eccentric pin arranged on the transmission wheel.

4. The power mechanism for three-dimensional animation display according to claim 2, characterized in that: The transmission wheel and the power wheel are gear-engaged; and / or the transmission ratio between the power wheel and the transmission wheel is 2-10:

1.

5. The power mechanism for three-dimensional animation display according to claim 2, characterized in that: The number of the sheave groups is equal to the number of the 3D models.

6. The power mechanism for three-dimensional animation display according to claim 1, characterized in that: The driven wheel and the power wheel form a multi-stage transmission by the transmission cam group, and the multi-stage transmission includes a multi-stage transmission wheel, a transmission cam and a groove wheel that form intermittent matching synchronization or disengagement, wherein the driven wheel is synchronized with the power wheel based on the synchronization between the transmission cam and the groove wheel.

7. The power mechanism for three-dimensional animation display according to claim 6, characterized in that: The multi-stage transmission wheel includes a first transmission wheel synchronized with the power wheel and a second transmission wheel synchronized with the driven wheel, wherein the transmission cam is coaxial with the first transmission wheel, and the second transmission wheel is coaxial with the groove wheel; the power wheel, the first transmission wheel, the second transmission wheel and the driven wheel are all gears, wherein the transmission ratio between the power wheel and the first transmission wheel is 2 to 5:1; the transmission ratio between the driven wheel and the second transmission wheel is 2 to 5:

1.

8. The power mechanism for three-dimensional animation display according to claim 7, characterized in that: The groove wheel has multiple groups of wheel grooves, each group of wheel grooves includes matching wheel grooves and pin grooves, and the transmission cam matches the groove wheel; and an eccentric pin matching the pin groove is formed on the transmission cam, and when the eccentric pin matches the pin groove, the power wheel and the driven wheel are synchronized.

9. The power mechanism for three-dimensional animation display according to claim 8, characterized in that: The number of the 3D models = the number of the sheave groups × the transmission ratio between the driven wheel and the second transmission wheel.

10. A three-dimensional animation display device, comprising a device box and a display wheel, characterized in that: The three-dimensional animation display device also includes a power mechanism for the three-dimensional animation display as described in any one of claims 1 to 9; or, the three-dimensional animation display device also includes a power mechanism for the three-dimensional animation display as described in any one of claims 1 to 9, a light source that is synchronously triggered by the rotation of the 3D model displayed on the display wheel to provide lighting assistance when the 3D model stops, and a hand crank assembly installed on the device box and connected to the power wheel.

Images