Gear shifting transmission device and toy car

Abstract

The utility model relates to a gear shifting transmission device and a toy car. A sliding gear transmission device is arranged on the toy car. According to the gear shifting transmission device, the gear shifting driving part, the gear shaft, the sliding ring, the sliding seat and other parts are arranged, so that the gear shifting process is simpler, the complexity of manual gear shifting is avoided, and the use convenience of a product is improved. Furthermore, the product ensures smooth movement among all parts in the gear shifting process through the matching between the sliding ring and the sliding seat, effectively reduces the phenomenon of blockage or failure, further enhances the stability of the whole system, and can keep good performance even under the condition of frequent use. In addition, due to the fact that the product can rapidly and accurately achieve switching among different driving modes, the toy car can support more diversified game scene setting, and the scene application universality of the toy car is improved.

Description

Technical Field

[0001] The utility model relates to the field of toys, in particular to a shift transmission device and a toy car. Background Art

[0002] As a kind of product deeply loved by children, the design and function of toy cars are also constantly developing and innovating. Traditional toy cars often adopt fixed driving modes, such as four-wheel drive or two-wheel drive, etc. In recent years, toy cars with different driving modes have emerged on the market. For example, products that can manually or automatically switch the driving mode. These attempts aim to improve the functional diversity of toy cars. However, the transmission switching devices on existing toy cars still have the following deficiencies:

[0003] Firstly, although some toy cars provide options of multiple driving modes, their switching mechanisms are relatively complex and not easy for children to operate by themselves, and their switching mechanisms are complex. Secondly, in some cases, due to the mechanical structure not being delicate enough or the material selection being inappropriate, problems such as jamming and failure are likely to occur during the driving mode switching process, and their reliability is insufficient. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a shift transmission device and a toy car, which can solve the problems of complex gear shifting and poor shifting reliability.

[0005] On the one hand, the utility model provides a shift transmission device, which includes:

[0006] A housing;

[0007] A driving component, arranged on the housing;

[0008] An output component, including a first output shaft, a second output shaft and an output gear. The first output shaft and the second output shaft are respectively rotatably arranged on the housing, the output gear is fixedly arranged on the first output shaft, and the driving component is drivingly connected to the output gear;

[0009] A shifting component, including a shifting driving part, a shifting shaft, a slip ring and a sliding seat. The shifting driving part is drivingly connected to the shifting shaft, the shifting shaft is slidably arranged on the housing, the slip ring is arranged on the shifting shaft, the sliding seat is rotatably arranged on the slip ring, the sliding seat is slidably sleeved on the second output shaft, the shifting driving part drives the shifting shaft to slide on the housing, so that the shifting shaft drives the sliding seat to slide along the second output shaft through the slip ring, so that the sliding seat can be detachably clamped on the output gear; and

[0010] A torque transmission structure is disposed between the sliding seat and the second output shaft and is configured to lock the relative positions of the sliding seat and the second output shaft in the rotational direction.

[0011] Preferably, the torque transmission structure includes a torque convex angle and a torque hole;

[0012] One of the torque convex angle and the torque hole is disposed on the sliding seat, and the other of the torque convex angle and the torque hole is disposed on the second output shaft. The contour of the torque convex angle is adapted to the inner wall of the torque hole, thereby locking the relative positions of the sliding seat and the second output shaft in the rotational direction.

[0013] Preferably, the torque transmission structure includes a plurality of torque convex angles;

[0014] Each torque convex angle is located on the second output shaft, and the torque convex angles are uniformly arranged along the circumferential direction of the second output shaft. The torque hole is located on the sliding seat, and each torque convex angle is adapted to the inner wall of the torque hole.

[0015] Preferably, each torque convex angle is integrally formed on the second output shaft.

[0016] Preferably, at least one locking position is defined on the housing, and the sliding seat is located between the output gear and the locking position;

[0017] When the sliding seat is driven by the slip ring to be clamped at the locking position, the rotation of the second output shaft is locked by the torque transmission structure through the sliding seat;

[0018] When the sliding seat is driven by the slip ring to disengage from the locking position and the output gear, the second output shaft is unlocked.

[0019] Preferably, a connecting arm is provided on the slip ring. The connecting arm is rotatably connected to the blocking shaft. The slip ring has an avoidance hole, and at least one support protrusion is provided on the inner wall of the avoidance hole;

[0020] The sliding seat is located in the avoidance hole. A rotation groove is defined in the circumferential side wall of the sliding seat, and the support protrusion is movably inserted into the rotation groove.

[0021] Preferably, the blocking shaft is configured to be rotatable relative to the housing, and a second shift connection hole is defined at an end of the blocking shaft;

[0022] The shift component further includes a shift head and a shift traction member. A first shift connection hole is formed in the shift head. The shift driving member is drivingly connected to the shift head. One end of the shift traction member is connected to the first shift connection hole, and the other end of the shift traction member is connected to the second shift connection hole;

[0023] Wherein, when the shift driving member drives the shift head to rotate, the shift head drives the shift shaft to slide through the shift traction member.

[0024] Preferably, the end of the first output shaft is movably inserted into the end of the second output shaft.

[0025] Preferably, at least one clamping groove is formed on the surface of the output gear adjacent to the sliding seat, and at least one clamping protrusion is provided on the side surface of the sliding seat adjacent to the sliding ring. The clamping protrusion is detachably clamped in the clamping groove.

[0026] The present invention also provides a toy car, which includes the shift transmission device described in any one of the above technical solutions. The toy car further includes a vehicle body, a front-wheel drive transmission device, and a rear-wheel drive transmission device;

[0027] The shift transmission device, the front-wheel drive transmission device, and the rear-wheel drive transmission device are respectively arranged on the vehicle body. The front-wheel drive transmission device is drivingly connected to the second output shaft, and the rear-wheel drive transmission device is drivingly connected to the first output shaft.

[0028] Implementing the present invention has the following beneficial effects:

[0029] The present invention relates to a shift transmission device and a toy car, and the shift transmission device is arranged on the toy car. By arranging components such as a shift driving member, a shift shaft, a sliding ring, and a sliding seat, the shift transmission device makes the gear shifting process simpler, eliminates the cumbersome manual shifting, and improves the use convenience of the product.

[0030] Furthermore, the product also ensures the smooth movement between components during the shifting process through the cooperation between the sliding ring and the sliding seat, effectively reducing the occurrence of jamming or failure phenomena, thereby further enhancing the stability of the entire system and maintaining good performance even under frequent use conditions.

[0031] In addition, since the product can quickly and accurately realize the conversion between different driving modes, the toy car can support more diverse game scenario settings, improving the universality of the toy car in scenario applications. Description of the Drawings

[0032] The exemplary embodiments of the present utility model will be described in more detail with reference to the accompanying drawings, and the above and other objects, features, and advantages of the present utility model will become more apparent. Among them, in the exemplary embodiments of the present utility model, the same reference numerals generally represent the same components.

[0033] Figure 1 is a schematic structural diagram of a shift transmission device in some embodiments of the present utility model;

[0034] Figure 2 is another schematic structural diagram of a shift transmission device in some embodiments of the present utility model;

[0035] Figure 3 is an exploded view of a shift transmission device in some embodiments of the present utility model;

[0036] Figure 4 is a schematic internal structural diagram of a shift transmission device in a first usage state in some embodiments of the present utility model;

[0037] Figure 5 is a schematic internal structural diagram of a shift transmission device in a second usage state in some embodiments of the present utility model;

[0038] Figure 6 is a schematic internal structural diagram of a shift transmission device in a third usage state in some embodiments of the present utility model;

[0039] Figure 7 is a schematic structural diagram of a toy car in some embodiments of the present utility model;

[0040] Figure 8 is an exploded view of a toy car in some embodiments of the present utility model. Detailed implementation manners

[0041] The embodiments of the present utility model will be described in more detail below with reference to the drawings. Although the embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present utility model more thorough and complete, and to fully convey the scope of the present utility model to those skilled in the art.

[0042] It should be understood that although the terms "first", "second", "third", etc. may be used in the present utility model to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present utility model, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0043] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0044] Unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] Figure 1 and Figure 2 Fig. shows a shift transmission device 10 in some embodiments of the present utility model. The shift transmission device 10 is capable of changing the driving mode. The shift transmission device 10 includes a housing 1, a driving assembly 2, an output assembly 3, a shift assembly 4 and a torque transmission structure 5. The driving assembly 2, the output assembly 3, the shift assembly 4 and the torque transmission structure 5 are respectively arranged in the housing 1.

[0046] It can be understood that the housing 1 functions to install and support the remaining components. The driving assembly 2 is arranged on the housing 1, and the driving assembly 2 is used to output torque. The output assembly 3 is used to transmit the torque to the outside. The shift assembly 4 is used to switch the driving mode. The torque transmission structure 5 is used to realize the torque transmission between the shift assembly 4 and the output assembly 3.

[0047] Such as Figures 1 to 6As shown, the output component 3 includes a first output shaft 31, a second output shaft 32, and an output gear 33. The first output shaft 31 and the second output shaft 32 are respectively rotatably arranged on the housing 1. The output gear 33 is fixedly arranged on the first output shaft 31, and the driving component 2 is drivingly connected to the output gear 33.

[0048] The shifting component 4 includes a shifting driving member 41, a shift shaft 42, a slip ring 43, and a slide seat 44. The shifting driving member is drivingly connected to the shift shaft 42. The shift shaft 42 is slidably arranged on the housing 1. The slip ring 43 is arranged on the shift shaft 42. The slide seat 44 is rotatably arranged on the slip ring 43. The slide seat 44 is slidably sleeved on the second output shaft 32. The shifting driving member 41 drives the shift shaft 42 to slide on the housing 1, so that the shift shaft 42 drives the slide seat 44 to slide along the second output shaft 32 through the slip ring 43, so that the slide seat 44 can be detachably clamped on the output gear 33.

[0049] The torque transmission structure 5 is arranged between the slide seat 44 and the second output shaft 32, and is used to lock the relative position of the slide seat 44 and the second output shaft 32 in the rotational direction.

[0050] Understandably, the first output shaft 31 and the second output shaft 32 are respectively rotatably arranged on the housing 1 to transmit driving force. The output gear 33 is fixedly installed on the first output shaft 31 and is used to receive power from the driving component 2.

[0051] The shifting driving member 41 (such as a motor or a manual operating lever) is used to control the gear shift. The shift shaft 42 can move linearly in the housing 1 and is connected to the shifting driving member 41. The slip ring 43 is sleeved outside the shift shaft 42 and moves together with the shift shaft 42. The slide seat 44 rotates freely around the slip ring 43 and slides along the second output shaft 32, and can be clamped on the output gear 33 at a specific position.

[0052] The torque transmission structure 5 is located between the slide seat 44 and the second output shaft 32. When the slide seat 44 is in the correct position, the relative rotation between the two is locked to ensure effective power transmission.

[0053] It should be noted that when the user wants to change the driving mode of the toy car, the shifting driving member 41 is operated to move the shift shaft 42 along the guide rail in the housing 1. As the shift shaft 42 moves, the slip ring 43 connected thereto drives the slide seat 44 to slide along the second output shaft 32 to a predetermined position. After reaching the specified position, the slide seat 44 will be locked on the output gear 33. At this time, since the torque transmission structure 5 can always ensure that there is no relative rotation between the slide seat 44 and the second output shaft 32, the torque can be transmitted to the first output shaft 31, and while the first output shaft 31 outputs torque, it can also be transmitted to the second output shaft 32 through the slide seat 44. In this way, a smooth transition from one driving mode to another is completed, and rapid and accurate gear shifting is achieved.

[0054] When the user operates the shift driving member 41 to move the shift shaft 42 along the guide rail in the housing 1 to another predetermined position, it will cause the sliding seat 44 and the output gear 33 to no longer be clamped in the rotational direction, that is, the sliding seat 44 no longer contacts the output gear 33. Specifically, as the shift shaft 42 moves, the slip ring 43 drives the sliding seat 44 to move together, causing the sliding seat 44 to disengage from the output gear 33, and the torque of the output gear 33 will not be transmitted to the sliding seat 44, thereby realizing the switching of the drive mode, and the torque of the drive assembly 2 will only be transmitted to the first output shaft 31.

[0055] As Figures 1 to 6 shown, in some embodiments of the shift transmission device 10, the torque transmission structure 5 includes a torque convex angle 51 and a torque hole 52;

[0056] One of the torque convex angle 51 and the torque hole 52 is provided on the sliding seat 44, and the other of the torque convex angle 51 and the torque hole 52 is provided on the second output shaft 32. The hole wall profiles of the torque convex angle 51 and the torque hole 52 are adapted to each other, so as to lock the relative positions of the sliding seat 44 and the second output shaft 32 in the rotational direction.

[0057] It can be understood that the torque convex angle 51 is always located within the torque hole 52, so that no matter how the position of the sliding seat 44 changes, it can rotate synchronously with the second output shaft 32. This ensures that the second output shaft 32 can accurately follow the movement of the sliding seat 44 in any drive mode.

[0058] It should be noted that when the sliding seat 44 is moved to a position where it is clamped with the output gear 33, the output gear 33 transmits power to the second output shaft 32 through the sliding seat 44. At this time, the entire transmission system (from the drive assembly 2 to the first output shaft 31 and then to the second output shaft 32) is connected, forming a complete power transmission path.

[0059] As Figures 1 to 6 shown, in some embodiments of the shift transmission device 10, the torque transmission structure 5 includes a plurality of torque convex angles 51; each torque convex angle 51 is located on the second output shaft 32, and each torque convex angle 51 is uniformly arranged along the circumferential direction of the second output shaft 32. The torque hole 52 is located on the sliding seat 44, and each torque convex angle 51 is adapted to the hole wall profile of the torque hole 52.

[0060] It can be understood that the setting of the plurality of torque convex angles 51 and the uniform distribution of each torque convex angle 51 along the circumferential direction of the second output shaft 32 can increase the stability of torque transmission and prevent wear or stress concentration caused by a single contact point. The hole wall profile of the torque hole 52 is designed to match all the torque convex angles 51.

[0061] As Figures 1 to 6As shown, in some embodiments of the shift transmission device 10, each torque convex angle 51 is integrally formed on the second output shaft 32.

[0062] It can be understood that the second output shaft 32 and the torque convex angle 51 thereon are integrally formed together, which can improve the connection strength between the torque convex angle 51 and the second output shaft 32, and prevent adverse phenomena such as cracking at the connection position between the two due to torque transmission.

[0063] As Figures 1 to 6 shown, in some embodiments of the shift transmission device 10, at least one locking position 11 is provided on the housing 1, and the sliding seat 44 is located between the output gear 33 and the locking position 11;

[0064] Among them, when the sliding seat 44 is driven by the sliding ring 43 to be clamped at the locking position 11, the sliding seat 44 locks the rotation of the second output shaft 32 through the torque transmission structure 5; when the sliding seat 44 is driven by the sliding ring 43 to disengage from the locking position 11 and the output gear 33, the second output shaft 32 is unlocked.

[0065] It can be understood that the shape profile of the locking position 11 is configured to be able to closely cooperate with the sliding seat 44.

[0066] It should be noted that when the sliding seat 44 is driven by the sliding ring 43 to be clamped at the locking position 11, the sliding seat 44 locks the rotation of the second output shaft 32 through the torque transmission structure 5. In this state, the sliding seat 44 is closely combined with the locking position 11 on the housing 1, so that the second output shaft 32 cannot rotate freely relative to the housing 1. This can be used to achieve a certain specific driving mode, such as parking or small-radius turning and other states.

[0067] Combined with the content of the foregoing embodiments, it can be seen that the shift transmission device 10 of this type of embodiment has three driving modes. When the sliding seat 44 does not contact the output gear 33 and the locking position 11, on the one hand, the sliding seat 44 does not receive the torque from the first output shaft 31, and on the other hand, it does not limit the rotation of the second output shaft 32, so that the second output shaft 32 can rotate freely.

[0068] As Figures 1 to 6 shown, in some embodiments of the shift transmission device 10, a connecting arm 431 is provided on the sliding ring 43, the connecting arm 431 is rotatably connected to the shift shaft 42, the sliding ring 43 has an avoidance hole 432, and at least one support protrusion 433 is provided on the hole wall of the avoidance hole 432; the sliding seat 44 is located in the avoidance hole 432, and a rotation groove 441 is provided on the circumferential side wall of the sliding seat 44, and the support protrusion 433 is movably inserted into the rotation groove 441.

[0069] Understandably, the connection arm 431 is provided such that the slip ring 43 can be rotatably connected to the blocking shaft 42. In this way, when the blocking shaft 42 slides along the housing 1, the slip ring 43 can move accordingly and is allowed to rotate on the blocking shaft 42. At least one support protrusion 433 is provided on the hole wall of the avoidance hole 432, and these support protrusions 433 are inserted into the rotation groove 441 on the slide seat 44 to achieve the rotation and synchronous movement of the slide seat 44. The rotation groove 441 is used to cooperate with the support protrusions 433 on the slip ring 43.

[0070] It should be noted that when the user operates the shift driving member 41 to move the blocking shaft 42, the slip ring 43 also moves accordingly. The slip ring 43 drives the slide seat 44 to slide along the second output shaft 32 through the support protrusions 433, thereby changing the position of the slide seat 44.

[0071] As Figures 1 to 6 shown, in some embodiments of the shift transmission device 10, the blocking shaft 42 is configured to be rotatable relative to the housing 1, and a second shift connection hole 421 is provided at the end of the blocking shaft 42;

[0072] The shift assembly 4 further includes a shift head 45 and a shift traction member 46. A first shift connection hole 451 is provided on the shift head. The shift driving member 41 is drivingly connected to the shift head. One end of the shift traction member 46 is connected to the first shift connection hole 451, and the other end of the shift traction member 46 is connected to the second shift connection hole 421;

[0073] Wherein, when the shift driving member 41 drives the shift head to rotate, the shift head drives the blocking shaft 42 to slide through the shift traction member 46.

[0074] Understandably, the second shift connection hole 421 is used to connect one end of the shift traction member 46. When the shift driving member 41 drives the blocking shaft 42 through the shift head 45 and the shift traction member 46, the second shift connection hole 421 provides a connection point, enabling the blocking shaft 42 to slide along the housing 1.

[0075] The shift traction member 46 is used to connect the first shift connection hole 451 of the shift head 45 and the second shift connection hole 421 of the blocking shaft 42. The shift traction member 46 can be a rigid connecting rod, and its two ends are respectively fixed in the two connection holes. When the shift head 45 rotates, the shift traction member 46 drives the blocking shaft 42 to slide along the housing 1, thereby realizing the shift operation.

[0076] As Figures 1 to 6 shown, in some embodiments of the shift transmission device 10, the end of the first output shaft 31 is movably inserted into the end of the second output shaft 32.

[0077] Understandably, the end of the first output shaft 31 can be movably inserted into the end of the second output shaft 32. This allows the first output shaft 31 and the second output shaft 32 to rotate relatively independently, thereby achieving power transmission or separation under different driving modes. At the same time, the insertion and movement of the ends also make the central axes of the two coincide with each other in the length direction.

[0078] As Figures 1 to 6 shown, in some embodiments of the shift transmission device 10, at least one clamping groove 331 is formed on the surface of the output gear 33 adjacent to the sliding seat 44, and at least one clamping protrusion 442 is provided on the side surface of the sliding seat 44 adjacent to the sliding ring 43. The clamping protrusion 442 can be detachably clamped in the clamping groove 331.

[0079] Understandably, the clamping groove 331 is for the clamping protrusion 442 to be inserted therein. When the clamping groove 331 is clamped with the clamping protrusion 442, the sliding seat 44 and the output gear 33 can rotate synchronously, so that the power of the first output shaft 31 can be transmitted to the second output shaft 32 through the output gear 33. When the sliding seat 44 moves to a position away from the output gear 33, the clamping protrusion 442 on the sliding seat 44 withdraws from the clamping groove 331. At this time, the sliding seat 44 is no longer clamped with the output gear 33, and the power transmission between the first output shaft 31 and the second output shaft 32 is interrupted.

[0080] As Figures 1 to 6 shown, in some embodiments of the shift transmission device 10, the shift transmission device 10 further includes a transmission device 6. The transmission device 6 includes a plurality of transmission gears 61 and a plurality of transmission shafts 62. Transmission gears are provided on the transmission shafts and are sequentially meshed.

[0081] One of the transmission gears 61 is drivingly connected to the driving assembly 2 through a shaft body, and the other transmission gear 61 is drivingly connected to the output gear 33. In this way, the torque of the driving assembly 2 can be correspondingly transmitted to the output gear 33.

[0082] Figure 7 And Figure 8 shows a toy car 20 in some embodiments of the present invention. The toy car 20 includes a shift transmission device 10, a vehicle body 30, a front-wheel drive transmission device 40, and a rear-wheel drive transmission device 50;

[0083] The shift transmission device 10, the front-wheel drive transmission device 40, and the rear-wheel drive transmission device 50 are respectively arranged on the vehicle body 30. The front-wheel drive transmission device 40 is drivingly connected to the second output shaft 32, and the rear-wheel drive transmission device 50 is drivingly connected to the first output shaft 31.

[0084] Understandably, the shift transmission device 10, the front-wheel drive transmission device 40, and the rear-wheel drive transmission device 50 are integrated onto the vehicle body 30 to achieve flexible and diverse driving modes and a reliable transmission system. The front-wheel drive transmission device 40 is drivingly connected to the first output shaft 31 and is responsible for providing power to the rear wheels 70. The rear-wheel drive transmission device 50 is drivingly connected to the second output shaft 32 and is responsible for providing power to the front wheels.

[0085] It should be noted that the toy car 20 can drive the rear-wheel drive transmission device 50 through the shift transmission device 10 and unlock the front-wheel drive transmission device 40, so that the toy car 20 is rear-wheel driven while the front wheels rotate freely.

[0086] The toy car 20 can also drive the front-wheel drive transmission device 40 and the rear-wheel drive transmission device 50 jointly through the shift transmission device 10, so that the toy car 20 is driven by the front wheels and the rear wheels.

[0087] In some other embodiments, the toy car 20 can also drive the rear-wheel drive device 50 through the shift transmission device 10 and lock the front-wheel drive transmission device 40, so that the toy car 20 moves by the rear wheels and locks the front wheels, enabling the toy car 20 to rotate with a smaller radius or maintain a more stable parking state.

[0088] Implementing the present utility model has the following beneficial effects:

[0089] The present utility model relates to a shift transmission device and a toy car, and the shift transmission device is arranged on the toy car. By arranging components such as a shift driving member, a shift shaft, a slip ring, and a slip seat, the shift transmission device makes the gear shifting process simpler, eliminates the tediousness of manual gear shifting, and improves the usability of the product.

[0090] Furthermore, through the cooperation between the slip ring and the slip seat, the product ensures smooth movement between components during gear shifting, effectively reducing the occurrence of jamming or failure phenomena, thereby further enhancing the stability of the entire system and maintaining good performance even under frequent use conditions.

[0091] In addition, since the product can quickly and accurately switch between different driving modes, the toy car can support more diverse game scenario settings, improving the universality of the toy car in scenario applications.

[0092] The solution of the present utility model has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily essential to the present utility model. In addition, it can be understood that the steps in the method embodiments of the present utility model can be adjusted, combined, and deleted according to actual needs, and the modules in the device embodiments of the present utility model can be combined, divided, and deleted according to actual needs.

[0093] The various embodiments of the present utility model have been described above. The above description is exemplary and not exhaustive, and is also not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the embodiments disclosed herein.

Claims

1. A shift transmission device, characterized in that, Comprising: A housing; A driving assembly, disposed on the housing; An output assembly, including a first output shaft, a second output shaft and an output gear, the first output shaft and the second output shaft are respectively rotatably disposed on the housing, the output gear is fixedly disposed on the first output shaft, and the driving assembly is drivingly connected to the output gear; A shifting assembly, including a shifting driving member, a shifting shaft, a sliding ring and a sliding seat, the shifting driving member is drivingly connected to the shifting shaft, the shifting shaft is slidably disposed on the housing, the sliding ring is disposed on the shifting shaft, the sliding seat is rotatably disposed on the sliding ring, the sliding seat is slidably sleeved on the second output shaft, the shifting driving member drives the shifting shaft to slide on the housing, so that the shifting shaft drives the sliding seat to slide along the second output shaft through the sliding ring, so that the sliding seat can be detachably clamped on the output gear; And A torque transmission structure, disposed between the sliding seat and the second output shaft, for locking the relative positions of the sliding seat and the second output shaft in the rotational direction.

2. The shift transmission device according to claim 1, characterized in that The torque transmission structure includes a torque convex angle and a torque hole; One of the torque convex angle and the torque hole is disposed on the sliding seat, the other of the torque convex angle and the torque hole is disposed on the second output shaft, and the contour of the hole wall of the torque convex angle and the torque hole is adapted to each other, so as to lock the relative positions of the sliding seat and the second output shaft in the rotational direction.

3. The shift transmission device according to claim 2, wherein, The torque transmission structure includes a plurality of the torque convex angles; Each of the torque convex angles is located on the second output shaft, and each of the torque convex angles is uniformly disposed along the circumferential direction of the second output shaft, the torque hole is located on the sliding seat, and each of the torque convex angles is adapted to the contour of the hole wall of the torque hole.

4. The shift transmission device according to claim 3, wherein, Each of the torque convex angles is integrally formed on the second output shaft.

5. The shift transmission device according to any one of claims 1 to 4, characterized in that At least one locking position is provided on the housing, and the sliding seat is located between the output gear and the locking position; Wherein, when the sliding seat is driven by the sliding ring to be clamped at the locking position, the sliding seat locks the rotation of the second output shaft through the torque transmission structure; When the sliding seat is driven by the sliding ring to disengage from the locking position and the output gear, the second output shaft is unlocked.

6. The shift transmission device according to any one of claims 1 to 4, characterized in that, A connecting arm is disposed on the sliding ring, the connecting arm is rotatably connected to the shifting shaft, the sliding ring has an avoidance hole, and at least one supporting protrusion is provided on the hole wall of the avoidance hole; The sliding seat is located in the avoidance hole, a rotating groove is provided on the circumferential side wall of the sliding seat, and the supporting protrusion is movably inserted into the rotating groove.

7. The shift transmission device according to claim 1, characterized in that, The shifting shaft is configured to be rotatable relative to the housing, and a second shifting connection hole is provided at the end of the shifting shaft; The shifting assembly further includes a shifting head and a shifting traction member, a first shifting connection hole is provided on the shifting head, the shifting driving member is drivingly connected to the shifting head, one end of the shifting traction member is connected to the first shifting connection hole, and the other end of the shifting traction member is connected to the second shifting connection hole; Wherein, when the shifting driving member drives the shifting head to rotate, the shifting head drives the shifting shaft to slide through the shifting traction member.

8. The shift transmission device according to claim 1, characterized in that, The end of the first output shaft is movably inserted into the end of the second output shaft.

9. The shift transmission device according to claim 1, wherein, At least one clamping groove is formed on the surface of the output gear adjacent to the sliding seat, and at least one clamping protrusion is arranged on the side surface of the sliding seat adjacent to the sliding ring. The clamping protrusion is detachably clamped in the clamping groove.

10. A toy car, characterized in that, The toy car further includes a vehicle body, a front drive transmission device and a rear drive transmission device, including the shift transmission device according to any one of claims 1 to 9. The shift transmission device, the front drive transmission device and the rear drive transmission device are respectively arranged on the vehicle body. The front drive transmission device is drivingly connected to the second output shaft, and the rear drive transmission device is drivingly connected to the first output shaft.

Images