Toy rotation transmission device and projection toy

Abstract

The utility model relates to a toy rotation transmission device and a projection toy. The projection toy comprises the toy rotation transmission device. On the rotary transmission device of the toy, a meshing transmission path of a planetary gear around a fixed sun gear is arranged, so that a mounting gear and the planetary gear form constant-ratio differential transmission, and a movable mechanism is driven to generate reverse autorotation motion when a turntable rotates; accurate reverse synchronous compensation (the revolution angular velocity omega and the rotation angular velocity-omega are superposed) of the revolution and rotation of the product is realized, and the constant space orientation of a movable element in the movement process is effectively maintained; furthermore, even if the friction force between the mounting shaft and the turntable is too large, the mounting shaft can be prevented from being clamped due to the too large friction force by driving the mounting gear through the planetary gear, so that the smooth movement of the movable mechanism is ensured, the durability of the product is improved, and the like.

Description

Technical Field

[0001] This utility model relates to the field of toys, and more particularly to a toy rotary transmission device and a projection toy. Background Technology

[0002] Toys often use various transmission mechanisms to drive corresponding parts to move along a predetermined trajectory. For example, a toy rotary transmission device is used to receive torque and convert it into rotational motion, causing the driven element to rotate around a predetermined position.

[0003] However, while existing rotary transmission devices can drive components to rotate, the components cannot maintain a constant orientation during rotation; that is, the component's own axis constantly changes with rotation. Even existing technologies that utilize the component's own weight to enable adaptive rotation relative to a larger component, allowing the component to rotate on its own axis while revolving with the larger component, thus maintaining a specific orientation with the help of gravity, easily cause the rotating joint between the component and the larger component to jam after long-term use. This results in a loss of relative rotational freedom between the component and the larger component, forcing the component to maintain a fixed posture with the main body. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a toy rotation transmission device and a projection toy.

[0005] This utility model provides a toy rotation transmission device, which includes:

[0006] case;

[0007] The torque output mechanism is mounted on the housing;

[0008] A transmission mechanism includes a turntable, a mounting shaft, a mounting gear, a planetary shaft, planetary gears, and a sun gear. The torque output mechanism is driven and connected to the turntable, which is rotatably mounted on the housing. The mounting shaft is rotatably mounted on the turntable. The mounting gear is fixedly connected to the mounting shaft. The planetary shaft is fixedly connected to the turntable. The planetary gears are rotatably mounted on the planetary shaft. The sun gear is fixedly connected to the housing. The planetary gears mesh with both the sun gear and the mounting gear.

[0009] The movable mechanism is fixedly connected to the mounting shaft or the mounting gear;

[0010] The torque output mechanism is used to drive the turntable to rotate in a first direction. The turntable drives the planetary gear to rotate around the sun gear through the planetary shaft. The planetary gear drives the mounting gear and the mounting shaft to rotate, thereby causing the movable mechanism to revolve around the sun gear in the first direction and causing the mounting gear to drive the movable mechanism to rotate in a second direction, which is opposite to the first direction.

[0011] Preferably, the torque output mechanism includes a torque output motor, a drive gear, several transmission gears, and an output gear. The torque output motor is mounted on the housing and is driven and connected to the drive gear. The transmission gears mesh sequentially, with one transmission gear meshing with the drive gear and another transmission gear meshing with the output gear. The output gear is driven and connected to the turntable.

[0012] Preferably, the transmission mechanism further includes a gear ring disposed on the turntable, the gear ring meshing with the output gear, and the gear ring configured to drive the turntable to rotate under the drive of the torque output motor.

[0013] Preferably, the transmission mechanism further includes a rotating gear disposed on the turntable, the rotating gear meshing with the output gear, and the rotating gear being configured to drive the turntable to rotate under the drive of the torque output motor.

[0014] Preferably, the transmission mechanism further includes a rotation limiting member, a first limiting switch, and a second limiting switch, wherein the first limiting switch and the second limiting switch are respectively electrically connected to the torque output mechanism;

[0015] The rotation limiting member is disposed on the turntable, and the first limit switch and the second limit switch are respectively disposed on the housing. The rotation limiting member is configured to actuate and trigger the first limit switch or the second limit switch under the action of the turntable; or

[0016] The rotation limiting component is disposed on the housing, and the first limiting switch and the second limiting switch are respectively disposed on the turntable. Both the first limiting switch and the second limiting switch can be triggered by the turntable abutting against the rotation limiting component.

[0017] Preferably, the mounting shaft and the movable mechanism are integrally formed.

[0018] Preferably, the mounting shaft has at least one snap-fit ​​part at the end away from the movable mechanism, the mounting gear has an insertion hole at its center, and the insertion hole has at least one snap-fit ​​groove on its wall. The mounting shaft passes through the turntable and is inserted into the insertion hole, and each snap-fit ​​part is engaged with each snap-fit ​​groove.

[0019] Preferably, the transmission mechanism includes three mounting shafts, three mounting gears, three planetary shafts, and three planetary gears;

[0020] Each of the mounting shafts is rotatably mounted on the turntable, each of the mounting gears is fixedly connected to each of the mounting shafts, each of the planetary shafts is fixedly mounted on the turntable, each of the planetary shafts is inserted into the center of each of the planetary gears, each of the planetary gears meshes with the sun gear, and each of the mounting gears meshes with each of the planetary gears.

[0021] The moving mechanism includes three moving components, each of which is connected to one of the mounting shafts.

[0022] Preferably, each of the planetary axes is evenly distributed in a circle around the rotation center of the turntable.

[0023] Preferably, the planetary shaft and the turntable are integrally formed.

[0024] Preferably, the housing has a clearance hole, the wall of the clearance hole extends to form a positioning flange, the turntable passes through the clearance hole, and the turntable slides against the positioning flange.

[0025] Preferably, the transmission mechanism further includes a plurality of pressure blocks, each of which is disposed on the housing. The edge of the turntable is located between the pressure block and the positioning flange. Each pressure block slides against the side of the turntable, and the positioning flange slides against the opposite side of the turntable.

[0026] This utility model also provides a projection toy, which includes a projection device and the toy rotation transmission device described in any of the above technical solutions. The projection device is disposed on the housing and is used to project a projectile onto the movable mechanism.

[0027] The following are the beneficial effects of implementing this utility model:

[0028] This utility model relates to a toy rotary transmission device and a projection toy, the projection toy including the toy rotary transmission device. In the toy rotary transmission device, by setting a meshing transmission path of planetary gears around a fixed sun gear, a fixed-ratio differential transmission is formed between the mounting gear and the planetary gears. When the turntable rotates, it drives the movable mechanism to generate a reverse rotational motion, achieving precise reverse synchronous compensation of the product's revolution and rotation (the revolution angular velocity ω and the rotation angular velocity -ω are superimposed), effectively maintaining a constant spatial orientation of the movable elements during movement;

[0029] Furthermore, even if the friction between the mounting shaft and the turntable is relatively high, the planetary gears drive the mounting gears, preventing the mounting shaft from jamming due to excessive friction, thus ensuring smooth operation of the moving mechanism and improving the product's durability. Attached Figure Description

[0030] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally denote like parts.

[0031] Figure 1 This is a schematic diagram of the structure of the projection toy in some embodiments of this utility model;

[0032] Figure 2 These are exploded views of the projector toy in some embodiments of this utility model;

[0033] Figure 3 From another perspective Figure 1 The diagram shows the structure of the projection toy.

[0034] Figure 4 This is a schematic diagram of the structure of the toy rotary transmission device in some embodiments of this utility model;

[0035] Figure 5 These are schematic diagrams of the transmission mechanism and the movable mechanism in some embodiments of this utility model;

[0036] Figure 6 This is a schematic diagram of the internal structure of the projection toy in some embodiments of this utility model;

[0037] Figure 7 yes Figure 6 The image shows a magnified view of the projector toy at point A.

[0038] Figure 8 yes Figure 6 The image shows a magnified view of the projector toy at point B. Detailed Implementation

[0039] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be more thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0040] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] Unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Figures 1 to 4 The toy rotation transmission device 10 in some embodiments of the present invention is shown. The toy rotation transmission device 10 can be applied to various types of toys and is used to perform rotation functions.

[0044] like Figures 1 to 4As shown, the toy rotary transmission device 10 includes a housing 1, a torque output mechanism 2, a transmission mechanism 3, and a movable mechanism 4. The torque output mechanism 2 is mounted on the housing 1 and is driven and connected to the transmission mechanism 3. The transmission mechanism 3 and the movable mechanism 4 are respectively mounted on the housing 1, and the movable mechanism 4 is connected to the transmission mechanism 3.

[0045] Understandably, housing 1 serves to support the remaining mechanisms. Torque output mechanism 2 outputs torque to transmission mechanism 3 during operation. Transmission mechanism 3 receives the torque and drives movable mechanism 4 to rotate. Movable mechanism 4 rotates relative to housing 1, and is able to maintain a fixed orientation during rotation.

[0046] like Figures 3 to 5 As shown, the transmission mechanism 3 includes a turntable 31, a mounting shaft 32, a mounting gear 33, a planetary shaft 34, planetary gears 35, and a sun gear 36. The torque output mechanism 2 is driven and connected to the turntable 31, which is rotatably mounted on the housing 1. The mounting shaft 32 is rotatably mounted on the turntable 31. The mounting gear 33 is fixedly connected to the mounting shaft 32. The planetary shaft 34 is fixedly connected to the turntable 31. The planetary gear 35 is rotatably mounted on the planetary shaft 34. The sun gear 36 is fixedly connected to the housing 1. The planetary gear 35 meshes with both the sun gear 36 and the mounting gear 33. The movable mechanism 4 is fixedly connected to either the mounting shaft 32 or the mounting gear 33.

[0047] The torque output mechanism 2 is used to drive the turntable 31 to rotate along the first direction D1. The turntable 31 drives the planetary gear 35 to rotate around the sun gear 36 through the planetary shaft 34. As a result, the planetary gear 35 drives the mounting gear 33 and the mounting shaft 32 to rotate, thereby causing the movable mechanism 4 to revolve around the sun gear 36 along the first direction D1, and causing the mounting gear 33 to drive the movable mechanism 4 to rotate along the second direction D2. The second direction D2 is opposite to the first direction D1.

[0048] Understandably, housing 1 provides structural support and secures the sun gear 36, ensuring that the orbital trajectory of planetary gear 35 is referenced to the sun gear 36. Torque output mechanism 2 drives turntable 31 to rotate along the first D1, and serves as a power input source to transmit torque to transmission mechanism 3. Torque output mechanism 2 can be configured to be fixed to housing 1 by bolts, clips, adhesives, or welding to prevent displacement deviation due to vibration during power transmission.

[0049] The turntable 31 serves as the mounting carrier for the planetary shaft 34, converting the rotational power of the torque output mechanism 2 into the revolution motion of the planetary gear 35. The mounting shaft 32 transmits the reverse rotation of the mounting gear 33 to the movable mechanism 4, while simultaneously allowing the movable mechanism 4 to revolve with the turntable 31. The mounting gear 33 receives the reverse rotation torque transmitted by the planetary gear 35, driving the mounting shaft 32 and the movable mechanism 4 to rotate. The planetary shaft 34 supports the planetary gear 35 and transmits the torque of the turntable 31, causing the planetary gear 35 to revolve synchronously with the turntable 31. The planetary gear 35 meshes with the sun gear 36 and the mounting gear 33, converting the revolution kinetic energy into reverse rotation torque. The sun gear 36 serves as the meshing reference for the planetary gear 35, controlling the rotational speed and direction of the planetary gear 35 through the difference in the number of teeth.

[0050] The active mechanism 4 is used to perform end actions (such as turning the toy cannon barrel, launching and receiving device, launching target device or other parts on the toy that need to perform rotation functions), and achieves constant attitude through the superposition of revolution and reverse rotation.

[0051] The torque transmission path in the actual operation of the product includes:

[0052] The torque output mechanism 2 drives the turntable 31 to rotate along the first direction D1 (such as clockwise or counterclockwise), thereby the turntable 31 drives the planetary shaft 34 and planetary gear 35 to revolve around the sun gear 36.

[0053] During its revolution, the planetary gear 35 is forced to rotate in the same direction as the first direction D1 because it meshes with the fixed sun gear 36. Consequently, the planetary gear 35 drives the mounting gear 33 to rotate in the second direction D2 (the second direction D2 is opposite to the first direction D1).

[0054] The rotation of the mounting gear 33 is transmitted to the movable mechanism 4 through the mounting shaft 32, so that the movable mechanism 4 revolves around the sun gear 36 in the first direction D1 while rotating in the second direction D2. The angular velocities of the two are equal and the directions are opposite, so as to fix the overall orientation of the movable mechanism 4.

[0055] It should also be noted that, firstly, the planetary shaft 34 is fixed to the turntable 31, which ensures that the revolution trajectory of the planetary gear 35 is synchronized with that of the turntable 31, preventing relative slippage between the two. Secondly, the mounting gear 33 is fixed to the mounting shaft 32, which can directly transmit the reverse rotation torque to the moving mechanism 4, eliminating intermediate transmission errors.

[0056] In some embodiments, the sun gear 36 can be connected to the housing 1 by a fixed connection method commonly used in the prior art, such as plugging, screwing, bonding, snapping or welding.

[0057] Specifically, two or more pins can be provided on the housing 1, and the pins are inserted into the sun gear 36 to fix the relative position of the sun gear 36 and the housing 1.

[0058] like Figure 4 As shown, in some embodiments of the toy rotary transmission device 10, the torque output mechanism 2 includes a torque output motor 21, a drive gear 22, several transmission gears 23 and an output gear 24. The torque output motor 21 is mounted on the housing 1 and is driven and connected to the drive gear 22. The transmission gears 23 mesh sequentially, with one transmission gear 23 meshing with the drive gear 22 and another transmission gear 23 meshing with the output gear 24. The output gear 24 is driven and connected to the turntable 31.

[0059] Understandably, the torque output motor 21 serves as a power source, used to output torque when energized. The drive gear 22 is fixedly connected to the output shaft of the torque output motor 21, thereby transmitting the torque output by the motor 21 to the drive gear. The various transmission gears 23 mesh sequentially, forming a speed-reduction or speed-increasing chain. The transmission gear 23 at the end of the torque transmission meshes with the output gear 24. The output gear 24 is directly or indirectly connected to the turntable 31 for driving.

[0060] like Figure 3 and Figure 4 As shown, in some embodiments of the toy rotary transmission device 10, the transmission mechanism 3 also includes a gear ring 37, which is disposed on the turntable 31 and meshes with the output gear 24. The gear ring 37 is configured to drive the turntable 31 to rotate under the drive of the torque output motor 21.

[0061] Understandably, the gear ring 37 is a ring gear, and the gear ring 37 can be configured to be fixed to the edge of the turntable 31 or other positions. The gear ring 37 can be configured to have internal or external teeth.

[0062] It should be noted that during the actual operation of the product, the torque output by the torque output motor 21 can be transmitted to the gear ring 37 through the drive gear 22, transmission gear 23 and output gear 24, and the gear ring 37 drives the turntable 31 to rotate.

[0063] In some embodiments, the gear ring 37 and the turntable 31 can be configured as an integrally formed structure, thereby avoiding cracking at the connection point between the two, improving the durability of the product and ensuring the stability of torque transmission.

[0064] In some embodiments of the toy rotary transmission device 10, the transmission mechanism 3 also includes a rotating gear, which is disposed on the turntable 31 and meshes with the output gear 24. The rotating gear is configured to drive the turntable 31 to rotate under the drive of the torque output motor 21.

[0065] Understandably, the center of the rotating gear is aligned with the rotation center of the turntable 31, so that the rotation of the rotating gear drives the turntable 31 to rotate. The rotating gear and the turntable can be connected by means of snap-fit, screw-fit, welding, or bonding to ensure that their rotational angular velocities are the same. Of course, the rotating gear and the turntable can be configured as a single integral structure.

[0066] like Figure 3 and Figure 4 As shown, in some embodiments of the toy rotary transmission device 10, the transmission mechanism 3 further includes a rotation limit member 381, a first limit switch 382, ​​and a second limit switch 383, with the first limit switch 382 and the second limit switch 383 electrically connected to the torque output mechanism 2 respectively; wherein the positions of the rotation limit member 381, the first limit switch 382, ​​and the second limit switch 383 have at least the following embodiments:

[0067] In the first embodiment, a rotation limiter 381 is disposed on a turntable 31, and a first limit switch 382 and a second limit switch 383 are respectively disposed on the housing 1. The rotation limiter 381 is configured to be able to press and trigger the first limit switch 382 or the second limit switch under the drive of the turntable 31.

[0068] Understandably, in this type of embodiment, the rotation limit member 381 can rotate synchronously with the turntable 31. As the turntable 31 rotates, the rotation limit member 381 can trigger the limit switches (first limit switch and second limit switch) at a specific angle. The first limit switch 382 and the second limit switch 383 serve as electronic control signal triggers, corresponding to the rotation limit positions of the turntable in the first direction D1 and the second direction D2, respectively.

[0069] It should be noted that when the turntable 31 rotates along the first direction D1, the rotation limit member 382 will contact the first limit switch 382, ​​thereby triggering the first limit switch 382, ​​which in turn triggers the torque output mechanism 2 to stop working or output torque in the opposite direction, causing the turntable 31 to stop or rotate in the opposite direction, and further causing the movable mechanism 4 to stop moving or move in the opposite direction.

[0070] Conversely, if the turntable 31 rotates along the second direction D2, the rotation limit member 382 will trigger the second limit switch 383 under the drive of the turntable 31, thereby triggering the torque output mechanism 2 to stop working or output torque in the opposite direction, so that the movable mechanism 4 stops moving or moves in the opposite direction.

[0071] In the second embodiment, the rotation limiter 381 is disposed on the housing 1, and the first limit switch 382 and the second limit switch 383 are respectively disposed on the turntable 31. The first limit switch 382 and the second limit switch 383 can be triggered by the turntable 31 abutting against the rotation limiter 381.

[0072] Understandably, in this embodiment, the first limit switch 382 and the second limit switch 383 are respectively mounted on the turntable 31, and both the first limit switch 382 and the second limit switch 383 can rotate with the turntable 31. The first limit switch 382 and the second limit switch 383 can be electrically connected to the torque output mechanism 2 through slip rings or conductive slip rings in the prior art, or through a wireless transmission module, thereby ensuring stable signal transmission during rotation.

[0073] It should be noted that when either the first limit switch 382 or the second limit switch 383 is triggered, the torque output mechanism 2 will stop working or output torque in the opposite direction, thereby causing the movable mechanism 4 to stop moving or move in the opposite direction.

[0074] like Figure 4 and Figure 5 As shown, in some embodiments of the toy rotary transmission device 10, the mounting shaft 32 and the movable mechanism 4 are integrally formed.

[0075] Understandably, the content of this embodiment can improve the connection strength between the mounting shaft 32 and the movable mechanism 4, thereby increasing the product's durability. It can also effectively prevent accidental deflection between the mounting shaft 32 and the movable mechanism 4, further improving the orientation stability of the movable mechanism 4.

[0076] like Figure 5 As shown, in some embodiments of the toy rotary transmission device 10, the mounting shaft 32 is provided with at least one latching part 321 at the end away from the movable mechanism 4, the mounting gear 33 is provided with an insertion hole 331 at the center, and at least one latching groove 332 is provided on the wall of the insertion hole 331. The mounting shaft 32 passes through the turntable 31 and is inserted into the insertion hole 331, and each latching part 321 is engaged with each latching groove 332 in a corresponding manner.

[0077] Understandably, the snap-fit ​​portion 321 of the mounting shaft 32 locks with the snap-fit ​​groove 332 through elastic deformation, replacing traditional screws or interference fits; effectively improving the ease of product assembly. Furthermore, the snap-fit ​​portion 321 can be configured with a hook-shaped or hemispherical protrusion to ensure elastic deformation during insertion and prevent loosening. The insertion hole 331 and the snap-fit ​​groove 332 provide axial positioning and circumferential limiting for the mounting shaft 32, preventing relative rotation between the mounting gear 33 and the mounting shaft 32, and also preventing separation between the mounting shaft 32 and the mounting gear 33.

[0078] In actual operation, the planetary gear 35 drives the mounting gear 33 to rotate, and the torque is transmitted to the mounting shaft 32 through the mating surface of the snap-fit ​​part 321 and the snap-fit ​​groove 332, causing the mounting shaft 32 to rotate; subsequently, the moving mechanism 4 performs the action.

[0079] like Figure 4 As shown, in some embodiments of the toy rotary transmission device 10, the transmission mechanism 3 includes three mounting shafts 32, three mounting gears 33, three planetary shafts 34, and three planetary gears 35;

[0080] Each mounting shaft 32 is rotatably mounted on the turntable 31. Each mounting gear 33 is fixedly connected to each mounting shaft 32 in a corresponding manner. Each planetary shaft 34 is fixedly mounted on the turntable 31. Each planetary shaft 34 is inserted into the center of each planetary gear 35 in a corresponding manner. Each planetary gear 35 meshes with the sun gear 36. Each mounting gear 33 meshes with each planetary gear 35 in a corresponding manner. The movable mechanism 4 includes three movable components 41, each movable component 41 being connected to each mounting shaft 32 in a corresponding manner.

[0081] Understandably, the arrangement of the three sets of mounting shafts 32, mounting gears 33, planetary shafts 34, and planetary gears 35 enables the product to simultaneously drive the movement of three moving components 41. During actual operation, the rotation of the turntable 31 drives the three planetary shafts 34 to rotate together, causing the three planetary gears 35 to revolve around the sun gear 36, and each planetary gear 35 drives the corresponding mounting gear 33 to rotate on its own axis. Each mounting gear 33 can also rotate in the opposite direction while revolving with the turntable 31, thus maintaining a constant orientation for each mounting gear 33; the specific transmission principle has been described in previous embodiments and will not be repeated here.

[0082] It should be noted that the functions performed by each active component 41 may be the same or different. Of course, once each active component 41 is assembled and fixed, its orientation is fixed, that is, the orientation of each active component 41 remains unchanged no matter how it is rotated to any angle.

[0083] like Figure 4 As shown, in some embodiments of the toy rotary transmission device 10, each planetary axis 34 is evenly distributed in a circle around the rotation center of the turntable 31.

[0084] Understandably, this embodiment sets the positions of the three planetary shafts 34 by symmetrical arrangement at equal angles (e.g., 120° intervals), which can effectively balance the centrifugal force of the planetary gears 35 and reduce the vibration of the turntable 31 when it revolves at high speed; it effectively improves the smoothness of transmission and avoids gear wear or noise caused by eccentric load.

[0085] like Figure 5 As shown, in some embodiments of the toy rotary transmission device 10, the planetary shaft 34 and the turntable 31 are integrally formed. Understandably, the planetary shaft 34 can be integrated into the turntable 31 using integral forming processes common in the prior art, such as injection molding or casting, to eliminate assembly errors and enhance structural rigidity.

[0086] like Figure 6 and Figure 7 As shown, in some embodiments of the toy rotary transmission device 10, a clearance hole 11 is provided on the housing 1, the hole wall of the clearance hole 11 extends to form a positioning flange 12, the turntable 31 passes through the clearance hole 11, and the turntable 31 slides against the positioning flange 12.

[0087] Understandably, in this embodiment, the radial position of the turntable 31 is defined by the positioning flange 12 to prevent axial displacement during revolution. The clearance hole 11 provides rotational space for the turntable 31, while the positioning flange 12 serves as a sliding guide surface to reduce frictional losses.

[0088] like Figure 3 and Figure 4 As shown, in some embodiments of the toy rotary transmission device 10, the transmission mechanism 3 also includes several pressure blocks 39, each pressure block 39 is disposed on the housing 1, the edge of the turntable 31 is located between the pressure block 39 and the positioning flange 12, each pressure block 39 slides against the side of the turntable 31, and the positioning flange 12 slides against the opposite side of the turntable 31.

[0089] Understandably, each pressure block 39 is positioned from the other side of the turntable 31, forming a double-sided limit with the positioning flange 12 to suppress the axial movement of the turntable 31.

[0090] like Figure 1 and Figure 2 As shown, the projection toy 1a of this utility model includes a projection device 20 and a toy rotation transmission device 10. The projection device 20 is disposed on the housing 1 and is used to project the projectile to the movable mechanism 4.

[0091] Understandably, the projectile toy 1a can be any of the toys in the prior art that impart kinetic energy to the projected object. The projectile device 20 is also in the prior art, and can be manually or electrically driven.

[0092] like Figure 2 , Figure 6 and Figure 8 As shown, the projection device 20 includes a pressure plate 30, a connecting piece 40, an impact post 50, and a spring piece 60. The spring piece is disposed on the housing 1, the connecting piece is connected to the spring piece and the pressure plate respectively, and the impact post is disposed on the connecting piece.

[0093] Understandably, the pressure plate can cause the spring to deform via the connecting piece, thus storing energy through deformation. Of course, the connecting piece can also be configured to have a certain deformation recovery capability, allowing it to accumulate elastic potential energy to some extent. After the pressure plate is released, the spring undergoes a recovery deformation, causing the connecting piece to reset the impact pin. The rapidly reset impact pin then strikes the projectile, imparting kinetic energy and propelling it forward.

[0094] It should be noted that the shape of the shrapnel 60 can be flexibly designed, with the preferred design being one that can store enough kinetic energy for the projected object. The projected object can be spherical, cylindrical, blocky, or irregularly shaped.

[0095] The following are the beneficial effects of implementing this utility model:

[0096] This utility model relates to a toy rotary transmission device and a projection toy, the projection toy including the toy rotary transmission device. In the toy rotary transmission device, by setting a meshing transmission path of planetary gears around a fixed sun gear, a fixed-ratio differential transmission is formed between the mounting gear and the planetary gears. When the turntable rotates, it drives the movable mechanism to generate a reverse rotational motion, achieving precise reverse synchronous compensation of the product's revolution and rotation (the revolution angular velocity ω and the rotation angular velocity -ω are superimposed), effectively maintaining a constant spatial orientation of the movable elements during movement;

[0097] Furthermore, even if the friction between the mounting shaft and the turntable is relatively high, the planetary gears drive the mounting gears, preventing the mounting shaft from jamming due to excessive friction, thus ensuring smooth operation of the moving mechanism and improving the product's durability.

[0098] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the present invention embodiments can be adjusted, combined, and deleted according to actual needs, and the modules in the device of the present invention embodiments can be combined, divided, and deleted according to actual needs.

[0099] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A toy rotation transmission device characterized by comprising: The torque output mechanism is used to drive the rotation of the rotating disc in the first direction, the rotating disc drives the rotation of the planetary gear around the sun gear through the planetary shaft, so that the planetary gear drives the rotation of the mounting gear and the mounting shaft, and then the mounting gear drives the revolution of the movable mechanism around the sun gear in the first direction, and the mounting gear drives the rotation of the movable mechanism in the second direction, the second direction is opposite to the first direction. The transmission mechanism further comprises a gear ring, the gear ring is arranged on the rotating disc, the gear ring is engaged with the output gear, and the gear ring is configured to drive the rotating disc to rotate under the drive of the torque output motor; or The transmission mechanism further comprises a rotating gear, the rotating gear is arranged on the rotating disc, the rotating gear is engaged with the output gear, and the rotating gear is configured to drive the rotating disc to rotate under the drive of the torque output motor. The transmission mechanism further comprises a rotating limiting piece, a first limiting switch and a second limiting switch, the first limiting switch and the second limiting switch are respectively electrically connected to the torque output mechanism; Wherein, the rotating limiting piece is arranged on the rotating disc, the first limiting switch and the second limiting switch are respectively arranged on the shell, and the rotating limiting piece is configured to be triggered by the first limiting switch or the second limiting switch under the driving of the rotating disc; or The rotating limiting piece is arranged on the shell, the first limiting switch and the second limiting switch are respectively arranged on the rotating disc, and the first limiting switch and the second limiting switch are all triggered by abutting on the rotating limiting piece under the driving of the rotating disc. The mounting shaft and the movable mechanism are integrally formed; and / or 2. A toy turn drive as claimed in claim 1, characterised in that ​ 3. A toy rotary drive as claimed in claim 2, characterised in that ​ ​ 4. A toy rotary drive according to claim 1 or 2, characterised in that ​ ​ ​ 5. The toy rotary drive of claim 1, wherein ​ The mounting shaft is provided with at least one buckle part at the end away from the movable mechanism, the mounting gear is provided with a insertion hole in the center, at least one buckle slot is formed in the hole wall of the insertion hole, the mounting shaft is inserted into the insertion hole through the rotating disc, and each buckle part is matched with each buckle slot.

6. A toy rotary drive as claimed in claim 1 or 5, characterised in that The transmission mechanism comprises three mounting shafts, three mounting gears, three planet shafts and three planet gears. Each mounting shaft is rotationally arranged on the rotating disc, each mounting gear is fixedly connected to each mounting shaft, each planet shaft is fixedly arranged on the rotating disc, each planet shaft is inserted into the center of each planet gear, each planet gear is meshed with the sun gear, and each mounting gear is meshed with each planet gear. The movable mechanism comprises three movable components, and each movable component is connected to each mounting shaft.

7. A toy rotary drive as claimed in claim 6, characterised in that Each planet shaft is uniformly distributed in a circle around the rotation center of the rotating disc; and / or The planet shaft and the rotating disc are integrally formed.

8. The toy turnabout drive of claim 1 wherein, The shell is provided with an avoiding hole, the hole wall of the avoiding hole is extended to form a positioning flange, the rotating disc is inserted into the avoiding hole, and the rotating disc is slidingly abutted against the positioning flange.

9. A toy rotary drive as claimed in claim 8, characterised in that The transmission mechanism further comprises a plurality of pressing blocks, each pressing block is arranged on the shell, the edge of the rotating disc is located between the pressing block and the positioning flange, each pressing block is slidingly abutted against one side of the rotating disc, and the positioning flange is slidingly abutted against the other side of the rotating disc.

10. A projection toy characterized by comprising: The toy rotary transmission device comprises a projection device and the toy rotary transmission device according to any one of claims 1 to 9, the projection device is arranged on the shell, and the projection device is used for projecting a projectile to the movable mechanism.

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