Toy transmission mechanism and toy car

Abstract

The utility model relates to a toy transmission mechanism and a toy car. The toy transmission mechanism is arranged on the toy car. According to the toy transmission mechanism, at least one alignment notch is formed in the cross section of a transmission shaft, and corresponding alignment protrusions are arranged on the hole wall of a connecting hole of an input gear, so that accurate alignment and stable connection between the input gear and the transmission shaft are ensured, and dislocation rotation and the like in the rotation direction are prevented; and the stability and the reliability in the torque input process are improved. And secondly, at least one connecting bulge is arranged in the input port on the connecting arm in the connecting device, and the bulge can also be inserted into the alignment notch of the transmission shaft, so that firm mechanical connection is formed between the transmission shaft and the connecting device, and the energy loss in the torque output process is effectively reduced. And moreover, the alignment notches, the alignment bulges and the connecting bulges are arranged, so that the assembly of each part is simpler and quicker, and meanwhile, the subsequent disassembly and maintenance work is also facilitated.

Description

Technical Field

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

[0002] The transmission shaft of a toy car is a very crucial component on a toy car and is used to transmit torque. However, in the related art, the transmission shaft on a toy car will encounter certain technical problems during actual use:

[0003] The transmission shaft usually depends on interference fit to adapt to other components, so that on the one hand, it receives torque, and on the other hand, it can also output torque. However, after long-term use and wear, slippage and the like are likely to occur at the torque transmission position, resulting in poor stability and effectiveness of torque transmission. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a toy transmission mechanism and a toy car, which can solve the problem of poor stability and effectiveness of torque transmission.

[0005] The utility model provides a toy transmission mechanism, which includes:

[0006] A housing;

[0007] A transmission device, the transmission device includes a transmission shaft and an input gear. The cross-section of the transmission shaft has at least one alignment notch. The transmission shaft is rotatably arranged on the housing. A connection hole is formed on the input gear. At least one alignment protrusion is arranged on the hole wall of the connection hole. The connection hole is sleeved outside the transmission shaft, and the alignment protrusion is inserted into the alignment notch;

[0008] A connection device, the connection device includes a connection arm and an output sleeve. An input port is formed at the end of the connection arm. At least one connection protrusion is arranged in the input port. The input port is inserted with the end of the transmission shaft, and the connection protrusion is inserted into the alignment notch; and

[0009] A rotating device, the rotating device includes at least one rotating wheel, and the rotating wheel is arranged on the output sleeve.

[0010] Preferably, the cross-section of the transmission shaft has four alignment notches, so that the cross-section of the transmission shaft is in a cross shape;

[0011] The contour of the hole wall of the connection hole has four alignment protrusions, and each alignment protrusion is inserted into each alignment notch one by one;

[0012] Four connection protrusions are arranged in the input port, and each connection protrusion is inserted into each corresponding alignment notch one by one.

[0013] Preferably, each of the alignment notches is uniformly and symmetrically distributed along the circumference of the transmission shaft.

[0014] Preferably, the cross-section of the transmission shaft is cross-shaped.

[0015] Preferably, the transmission device further includes bevel gears, and the bevel gears are arranged to mesh with the input gear.

[0016] Preferably, the transmission device further includes a first transmission arm and a second transmission arm. One end of the first transmission arm is fixedly connected to the bevel gear, and the other end of the first transmission arm is movably connected to the second transmission arm.

[0017] Preferably, the transmission device further includes a plurality of transmission bearings. Each of the transmission bearings is arranged in the housing, and the transmission shaft passes through each of the transmission bearings.

[0018] Preferably, the connecting device further includes a rotating sleeve. The rotating sleeve is rotatably arranged on the housing. The rotating sleeve is sleeved outside the output sleeve, and the output sleeve passes through to the outside of the rotating sleeve.

[0019] Preferably, the output sleeve is provided with a connecting stud at a position away from the input port, and the connecting stud is inserted into the rotating wheel.

[0020] Preferably, the connecting device further includes a reversing arm. The end of the reversing arm is rotatably connected to the rotating sleeve.

[0021] On the other hand, the present invention also provides a toy car, which includes a chassis and the toy transmission mechanism described in any one of the above technical solutions. The toy transmission mechanism is arranged on the chassis.

[0022] Implementing the present invention has the following beneficial effects:

[0023] The present invention relates to a toy transmission mechanism and a toy car, and a toy transmission mechanism is arranged on the toy car. In the toy transmission mechanism, by providing at least one alignment notch on the cross-section of the transmission shaft and providing corresponding alignment protrusions on the inner wall of the connection hole of the input gear, the precise alignment and firm connection between the input gear and the transmission shaft are ensured, preventing misalignment rotation and the like in the rotation direction, and improving the stability and reliability during the torque input process.

[0024] Secondly, at least one connection protrusion is provided in the input port on the connection arm in the connection device, and the protrusion can also be inserted into the alignment notch of the transmission shaft, so that a firm mechanical connection is formed between the transmission shaft and the connection device, effectively reducing the energy loss during the torque output process.

[0025] Furthermore, the provision of the alignment notch, alignment protrusion and connection protrusion makes the assembly of each component simpler and faster, and is also conducive to subsequent disassembly and maintenance work. Brief Description of the Drawings

[0026] By describing the exemplary embodiments of the present utility model in more detail in conjunction with the accompanying drawings, 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.

[0027] Figure 1 is a schematic structural diagram of a toy transmission mechanism in some embodiments of the present utility model;

[0028] Figure 2 is viewed from another angle Figure 1 a schematic structural diagram of the toy transmission mechanism shown;

[0029] Figure 3 is an exploded view of a toy transmission mechanism in some embodiments of the present utility model;

[0030] Figure 4 is Figure 3 a schematic partial structural diagram of the toy transmission mechanism shown;

[0031] Figure 5 is a schematic structural diagram of a transmission shaft in some embodiments of the present utility model. Detailed Description of the Embodiments

[0032] The embodiments of the present utility model will be described in more detail below with reference to the accompanying 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 set forth herein. On the contrary, these embodiments are provided so that the present utility model will be more thorough and complete, and can fully convey the scope of the present utility model to those skilled in the art.

[0033] It should be understood that although the terms "first", "second", "third", etc. may be used in the present utility model to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information 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 these features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0034] 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. It 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 therefore should not be construed as a limitation to the present utility model.

[0035] Unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can 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.

[0036] Figure 1 and Figure 2 The toy transmission mechanism 10 in some embodiments of the present utility model is shown. The toy transmission mechanism 10 is used in a toy car and serves to transmit torque.

[0037] As Figures 1 to 4 shown, the toy transmission mechanism 10 includes a housing 1, a transmission device 2, a connecting device 3 and a rotating device 4. The transmission device 2, the connecting device 3 and the rotating device 4 are respectively arranged in the housing 1.

[0038] It can be understood that the housing 1 is used to install various components. The transmission device 2 and the connecting device 3 together serve to transmit torque. The rotating device 4 is used to rotate after receiving torque, thereby driving the whole toy car to move.

[0039] As Figures 2 to 5 shown, the transmission device 2 includes a transmission shaft 21 and an input gear 22. The cross-section of the transmission shaft 21 has at least one alignment notch 211. The transmission shaft 21 is rotatably arranged on the housing 1. A connecting hole 221 is formed in the input gear 22, and at least one alignment protrusion 222 is arranged on the hole wall of the connecting hole 221. The connecting hole 221 is sleeved outside the transmission shaft 21, and the alignment protrusion 222 is inserted into the alignment notch 211.

[0040] The connecting device 3 includes a connecting arm 31 and an output sleeve 32. An input port 311 is provided at the end of the connecting arm 31. At least one connecting protrusion 312 is arranged in the input port 311. The input port 311 is for the end of the transmission shaft 21 to be inserted, and the connecting protrusion 312 is inserted into the alignment notch 211. The rotating device 4 includes at least one rotating wheel 41, and the rotating wheel 41 is arranged on the output sleeve 32.

[0041] Understandably, the alignment notch 211 is provided for cooperating with the alignment protrusion 222 of the input gear 22 to achieve precise positioning and fixed connection between the two; it is also for cooperating with the connecting protrusion 312. When the input gear 22 is sleeved on the transmission shaft 21, the alignment protrusion 222 just inserts into the alignment notch 211 to ensure reliable and stable torque transmission between the input gear 22 and the transmission shaft 21. The end of the transmission shaft 21 can be inserted into the connecting arm 31 through the input port 311, and the connecting protrusion 312 cooperates with the alignment notch 211 on the transmission shaft 21 to achieve a firm connection between the transmission shaft 21 and the connecting arm 31. The output sleeve 32 is used to drive the rotating wheel 41 to rotate.

[0042] It should be noted that by providing the alignment notch 211 on the cross-section of the transmission shaft 21 and cooperating with the alignment protrusion 222 of the input gear 22, and the connecting protrusion 312 of the connecting arm 31 cooperating with the alignment notch 211, the firm connection between the input gear 22 and the transmission shaft 21, and between the transmission shaft 21 and the connecting arm 31 during the torque transmission process is ensured, effectively improving the stability of torque input and torque output.

[0043] As Figure 4 and Figure 5 shown, in some embodiments of the toy transmission mechanism 10, the cross-section of the transmission shaft 21 has four alignment notches 211, so that the cross-section of the transmission shaft 21 is cross-shaped; the hole wall profile of the connection hole 221 has four alignment protrusions 222, and each alignment protrusion 222 is inserted into each alignment notch 211 correspondingly; four connecting protrusions 312 are arranged in the input port 311, and each connecting protrusion 312 is inserted into each alignment notch 211 correspondingly.

[0044] Understandably, through the alignment cooperation of the four alignment protrusions 222 corresponding to the four alignment notches 211 one by one, and through the alignment cooperation of the four connecting protrusions 312 corresponding to the four alignment notches 211 one by one, the relative movement between components can be significantly reduced, thereby further improving the stability and reliability of torque transmission.

[0045] As Figure 5 shown, in some embodiments of the toy transmission mechanism 10, each alignment notch 211 is evenly and symmetrically distributed along the circumference of the transmission shaft 21.

[0046] Understandably, the evenly and symmetrically distributed alignment notches 211 can ensure the rotational balance of the drive shaft 21 and prevent the drive shaft 21 from deflecting.

[0047] As Figure 5 shown, in some embodiments of the toy transmission mechanism 10, the cross-section of the drive shaft 21 is cross-shaped.

[0048] Understandably, the cross-shaped drive shaft 21 can make the entire transmission mechanism have better symmetry and balance, which helps to reduce vibration and noise and improve the driving stability of the toy car.

[0049] As Figure 3 and Figure 4 shown, in some embodiments of the toy transmission mechanism 10, the transmission device 2 further includes a bevel gear 23, and the bevel gear 23 is arranged to mesh with the input gear 22.

[0050] Understandably, the bevel gear 23 is used to change the direction of torque transmission so that the torque can be correspondingly transmitted to the input gear 22.

[0051] As Figure 3 and Figure 4 shown, in some embodiments of the toy transmission mechanism 10, the transmission device 2 further includes a first transmission arm 24 and a second transmission arm 25. One end of the first transmission arm 24 is fixedly connected to the bevel gear 23, and the other end of the first transmission arm 24 is movably connected to the second transmission arm 25.

[0052] Understandably, one end of the first transmission arm 24 is fixedly connected to the bevel gear 23 to drive the bevel gear 23 to rotate. The other end of the first transmission arm 24 is movably connected to the second transmission arm 25, and the movable connection allows for a certain relative movement between the first transmission arm 24 and the second transmission arm 25 to adapt to different transmission requirements.

[0053] As Figure 3 and Figure 4 shown, in some embodiments of the toy transmission mechanism 10, the transmission device 2 further includes a plurality of transmission bearings 26, and each transmission bearing 26 is arranged in the housing 1, and the drive shaft 21 passes through each transmission bearing 26.

[0054] Understandably, by arranging a plurality of transmission bearings 26 on the drive shaft 21, the frictional loss of the drive shaft 21 during rotation can be significantly reduced, and the efficiency of torque transmission can be improved. The use of the transmission bearings 26 helps to improve the smooth operation of the drive shaft 21, reduce vibration and noise, and thus improve the working performance of the entire transmission mechanism.

[0055] As Figure 3 and Figure 4As shown, in some embodiments of the toy transmission mechanism 10, the connecting device 3 further includes a rotating sleeve 33. The rotating sleeve 33 is rotatably arranged on the housing 1. The rotating sleeve 33 is sleeved outside the output sleeve 32, and the output sleeve 32 penetrates outside the rotating sleeve 33.

[0056] Understandably, the rotation of the rotating sleeve 33 will correspondingly drive the rotation of the output sleeve 32, thereby adjusting the orientation of the output sleeve 32, and further adjusting the orientation of the rotating device 4 to achieve the purpose of reversing adjustment. The output sleeve 32 can rotate within the rotating sleeve 33, so that torque can always be transmitted to the rotating wheel 41.

[0057] As Figure 3 and Figure 4 shown, in some embodiments of the toy transmission mechanism 10, the output sleeve 32 is provided with a connecting stud 321 at a position away from the input port 311. The connecting stud 321 is inserted into the rotating wheel 41.

[0058] Understandably, by providing the connecting stud 321 on the output sleeve 32 and inserting it into the rotating wheel 41, the connection stability between the output sleeve 32 and the rotating wheel 41 can be improved, ensuring the stability and reliability during the torque transmission process. Secondly, through the close fit between the connecting stud 321 and the rotating wheel 41, the energy loss during the torque transmission process is reduced, and the efficiency of torque transmission is improved.

[0059] As Figure 3 and Figure 4 shown, in some embodiments of the toy transmission mechanism 10, the connecting device 3 further includes a reversing arm 34. The end of the reversing arm 34 is rotatably connected to the rotating sleeve 33.

[0060] Understandably, the reversing arm 34 is used to drive the rotating sleeve 33 to rotate, so as to quickly realize the reversing function.

[0061] The toy car of the present utility model includes a chassis and a toy transmission mechanism 10. The toy transmission mechanism 10 is arranged on the chassis.

[0062] Understandably, the chassis is a prior art and serves as a load-bearing function.

[0063] Implementing the present utility model has the following beneficial effects:

[0064] The present utility model relates to a toy transmission mechanism and a toy car, and a toy transmission mechanism is provided on the toy car. On the toy transmission mechanism, by providing at least one alignment notch on the cross-section of the transmission shaft and providing corresponding alignment protrusions on the inner wall of the connection hole of the input gear, the precise alignment and firm connection between the input gear and the transmission shaft are ensured, preventing misalignment rotation in the rotation direction, etc., and improving the stability and reliability during the torque input process.

[0065] Secondly, at least one connecting protrusion is provided in the input port on the connecting arm of the connecting device. This protrusion can also be inserted into the alignment notch of the transmission shaft, so as to form a firm mechanical connection between the transmission shaft and the connecting device, effectively reducing the energy loss during torque output.

[0066] Furthermore, the setting of the alignment notch, alignment protrusion and connecting protrusion makes the assembly of each component simpler and faster, and is also conducive to subsequent disassembly and maintenance work.

[0067] The solution of the present utility model has been described in detail with reference to the accompanying drawings above. In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also know 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.

[0068] The embodiments of the present utility model have been described above. The above description is exemplary and not exhaustive, and is 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 skilled persons in the technical field to understand the embodiments disclosed herein.

Claims

1. A toy transmission mechanism, characterized in that, Comprising: A housing; A transmission device, the transmission device comprising a transmission shaft and an input gear, the cross-section of the transmission shaft having at least one alignment notch, the transmission shaft being rotatably disposed on the housing, the input gear being provided with a connection hole, at least one alignment projection being provided on the hole wall of the connection hole, the connection hole being sleeved outside the transmission shaft, and the alignment projection being inserted into the alignment notch; A connection device, the connection device comprising a connection arm and an output sleeve, an input port being provided at an end of the connection arm, at least one connection projection being provided in the input port, the input port being for inserting the end of the transmission shaft, and the connection projection being inserted into the alignment notch; and A rotating device, the rotating device comprising at least one rotating wheel, the rotating wheel being disposed on the output sleeve.

2. The toy transmission mechanism according to claim 1, wherein, The cross-section of the transmission shaft has four of the alignment notches, so that the cross-section of the transmission shaft is cross-shaped; The contour of the hole wall of the connection hole has four of the alignment projections, and each of the alignment projections is correspondingly inserted into each of the alignment notches; Four of the connection projections are provided in the input port, and each of the connection projections is correspondingly inserted into each of the alignment notches.

3. The toy transmission mechanism according to claim 1 or 2, characterized in that, Each of the alignment notches is evenly and symmetrically distributed along the circumference of the transmission shaft.

4. The toy transmission mechanism according to claim 1 or 2, characterized in that, The cross-section of the transmission shaft is cross-shaped.

5. The toy transmission mechanism according to claim 1, wherein The transmission device further comprises a bevel gear, the bevel gear being disposed to mesh with the input gear.

6. The toy transmission mechanism according to claim 5, wherein The transmission device further comprises a first transmission arm and a second transmission arm, one end of the first transmission arm being fixedly connected to the bevel gear, and the other end of the first transmission arm being movably connected to the second transmission arm.

7. The toy transmission mechanism according to claim 1, wherein, The transmission device further comprises a plurality of transmission bearings, each of the transmission bearings being disposed in the housing, and the transmission shaft passing through each of the transmission bearings.

8. The toy transmission mechanism according to claim 1, characterized in that, The connection device further comprises a rotating sleeve, the rotating sleeve being rotatably disposed on the housing, the rotating sleeve being sleeved outside the output sleeve, and the output sleeve passing through to the outside of the rotating sleeve.

9. The toy transmission mechanism according to claim 8, wherein, The output sleeve is provided with a connection stud at a position away from the input port, and the connection stud is inserted into the rotating wheel.

10. A toy car, characterized in that, The toy car comprises a chassis and the toy transmission mechanism according to any one of claims 1 to 9, the toy transmission mechanism being disposed on the chassis.

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