Toy spark gear box and toy car

Abstract

The utility model provides a toy spark gearbox which comprises a shell, a gear set and a flywheel which are in transmission connection are installed in the shell, the toy spark gearbox further comprises an installation support, a connecting rod is arranged on the shell in a protruding mode, and a first connecting part is arranged on the connecting rod. The mounting support comprises a first supporting plate and a second supporting plate which are fixed, the first supporting plate is arranged above the flywheel in a suspended mode, a containing groove is formed in the position, right opposite to the flywheel, of the first supporting plate, a flint is connected into the containing groove, the flint makes contact with the flywheel, and the second supporting plate makes contact with the flywheel. The second supporting plate is provided with a second connecting part detachably and fixedly connected with the first connecting part, and the second supporting plate is matched with the first connecting part to be used for limiting the first supporting plate from moving in the direction away from the flywheel. According to the structure of the toy spark gearbox, the shell does not need to be detached when the flint is replaced, and operation is convenient and easy. The utility model further provides a toy car with the toy spark gearbox.

Description

Technical Field

[0001] This utility model relates to the field of toy gearbox technology, and more particularly to a toy spark gearbox and a toy car. Background Technology

[0002] Currently, gearboxes are widely used in electric toys. These gearboxes mainly function as speed changers and transmitters, with relatively simple structures and limited functions. However, as toy designs become increasingly diverse, it's sometimes necessary to add multiple effects, especially dynamic, light-emitting, and sound effects, which are gaining popularity among consumers. Existing technologies, such as the spark-jetting gearbox provided in Chinese patent CN204699409U, utilize the principle of sparks generated by friction between sparkstone and sand, causing sparks to be ejected when the gearbox rotates, thus enriching the toy's performance. However, in this gearbox, the sparkstone is fixed in a protruding housing on the top of the front or bottom shell, requiring disassembly of the entire gearbox to install or replace the sparkstone, which presents an inconvenience. Utility Model Content

[0003] The purpose of this invention is to provide a toy spark gearbox and toy car to solve the problem mentioned in the background art that the installation and replacement of spark stones are inconvenient in the existing structure.

[0004] To achieve the above objectives, this utility model provides a toy spark gearbox, including a housing, in which a gear set and a flywheel connected by transmission are installed, and a mounting bracket. A connecting rod protrudes from the housing, and a first connecting portion is provided on the connecting rod. The mounting bracket includes a fixed first support plate and a second support plate. The first support plate is suspended above the flywheel and has a receiving groove directly opposite the flywheel. A flint is connected to the receiving groove and contacts the flywheel. The second support plate has a second connecting portion detachably fixedly connected to the first connecting portion. The second support plate cooperates with the first connecting portion to restrict the first support plate from moving away from the flywheel.

[0005] As a preferred embodiment, the first support plate is elastic, and there is a gap between the opening of the receiving groove and the flywheel, the gap being less than or equal to the distance between the first support plate and the flywheel.

[0006] As a preferred embodiment, the housing is provided with a splash port, and the splash port and the connecting rod are disposed opposite to each other at both ends of the housing. The flywheel and the flint are correspondingly disposed on the splash port, and the splash port is used to allow the sparks generated by the friction between the flywheel and the flint to be splashed out of the housing.

[0007] As a preferred embodiment, the housing is further provided with a baffle between the connecting rod and the splash port, the baffle being used to prevent sparks generated by the friction between the flywheel and the flint from splashing into the housing.

[0008] As a preferred embodiment, the number of connecting rods is one or two. When the number of connecting rods is one, the first support plate and the second support plate are arranged along the same straight line. When the number of connecting rods is two, the two connecting rods are arranged opposite to each other, and the first support plate and the second support plate are arranged perpendicularly.

[0009] As a preferred embodiment, when there are two connecting rods, the first connecting part consists of a connecting hole and a limiting block. The limiting block is distributed on the outer circle of the connecting hole. The limiting block can be contacted with the second support plate to limit its rotation direction. The second connecting part is a connecting block, which is detachably inserted and fixed in the connecting hole.

[0010] As a preferred embodiment, the connecting rod is elastic, and the connecting block is provided with an arc-shaped contact surface. The arc-shaped contact surface is distributed on the connecting block facing the outside of the connecting rod, and the arc-shaped contact surface is used for sliding contact with the connecting rod.

[0011] As a preferred embodiment, when the number of connecting rods is one, the first connecting part and the second connecting part are configured as one of the following: snap-fit ​​connection structure, threaded connection structure, internal and external thread mating structure, magnetic fixing structure, and tight-fit plug-in structure.

[0012] As a preferred embodiment, the gear set includes a first gear, a second gear, a third gear, and a fourth gear that are meshed together in sequence. The shaft of the first gear extends out of the housing to fix an external power component, and the fourth gear is coaxially fixed with the flywheel.

[0013] This utility model also provides a toy car, including a fixedly connected car shell and chassis, with wheels rotatably connected to the chassis, and a toy spark gearbox as described above. The housing of the toy spark gearbox is fixed to the chassis, and the gear set of the toy spark gearbox is connected to the wheels for transmission. The car shell has a splash hole at the position opposite to the flywheel of the toy spark gearbox, and the car shell is made of transparent material.

[0014] Therefore, based on the technical means of this utility model, the beneficial effects that this utility model can obtain are as follows: The toy spark gearbox provided by this utility model uses a mounting bracket to install flints. By setting a connecting rod protruding on the shell, the second support plate of the mounting bracket can be detachably fixed on the connecting rod, which can restrict the first support plate to be suspended above the flywheel. The first support plate is provided with a receiving groove opposite the flywheel, so that the flint can be installed in the receiving groove and can be kept in contact with the flywheel under the action of gravity. The structure of the toy spark gearbox provided by this utility model facilitates the installation and replacement of flints. When installing or replacing flints, there is no need to disassemble the shell; only the mounting bracket needs to be installed and removed from the shell. The operation is convenient and simple, highly operable, and more practical. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a gearbox according to an embodiment of the present invention.

[0016] Figure 2 for Figure 1 Exploded view of the intermediate gearbox.

[0017] Figure 3 for Figure 2 A schematic diagram of the mounting bracket.

[0018] Figure 4 for Figure 1 Cross-sectional view of the gearbox.

[0019] Figure 5 This is a schematic diagram of a toy car according to an embodiment of the present invention.

[0020] In the diagram: 1-Toy car; 10-Car shell; 11-Splash nozzle; 20-Chassis; 30-Wheel; 100-Shell; 110-First shell; 120-Second shell; 101-Pin; 102-Socket; 103-Connecting shaft; 104-Connecting rod; 1040-First connecting part; 1041-Connecting hole; 1042-Limiting block; 105-Splash nozzle; 106-Baffle; 200-Gear set; 210-First gear; 220-Second gear; 230-Third gear; 240-Fourth gear; 300-Flywheel; 400-Mounting bracket; 410-First support plate; 411-Accommodation groove; 412-Gap; 420-Second support plate; 421-Second connecting part; 4211-Arc-shaped contact surface; 500-Flint. Detailed Implementation

[0021] The preferred embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", 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.

[0024] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] Please refer to Figures 1 to 4This embodiment provides a toy spark gearbox, including a housing 100, in which a gear set 200 and a flywheel 300 are installed and connected by transmission. It also includes a mounting bracket 400 detachably mounted on the housing 100. The mounting bracket 400 is used to mount a flint 500 above the flywheel 300 so that the flywheel 300 can generate sparks by rubbing against the flint 500 during rotation.

[0028] The housing 100 includes a first housing 110 and a second housing 120. In this embodiment, the first housing 110 and the second housing 120 are detachably fixed together by means of insert posts 101 and insertion holes 102. Specifically, a plurality of insert posts 101 are spaced apart at the edge of the first housing 110 opposite to the second housing 120, and a plurality of insertion holes 102 are spaced apart at the edge of the second housing 120 opposite to the first housing 110. The number and distribution of the insert posts 101 and insertion holes 102 are the same and are fixedly connected in a one-to-one correspondence. The first housing 110 and the second housing 120 can be spliced ​​together into a whole by means of the cooperation of the insert posts 101 and insertion holes 102, so as to facilitate the installation of the gear set 200 and the flywheel 300 inside the housing 100. In other embodiments of this utility model, the first housing 110 and the second housing 120 can also be fixed together by other structures, such as snap-fit ​​structures, adhesive structures, threaded fixing structures, welding structures, etc.

[0029] It is understood that a connecting shaft 103 for rotatably mounting the gear set 200 and the flywheel 300 is provided between the first housing 110 and the second housing 120, so that the gear set 200 and the flywheel 300 can be relatively stably rotatably connected within the housing 100.

[0030] A connecting rod 104 protrudes from the housing 100. There may be one or two connecting rods 104, each with a first connecting portion 1040. In this embodiment, there are two connecting rods 104, positioned opposite each other on the outside of the same end of the housing 100. The first support plate and the second support plate of the mounting bracket 400 are vertically aligned. The first connecting portion 1040 on each connecting rod 104 consists of a connecting hole 1041 and a limiting block 1042, distributed on the outer circumference of the connecting hole 1041. The second support plate is detachably inserted and fixed into the connecting hole 1041. The limiting block 1042 is in contact with the second support plate to restrict its rotation direction. Through the cooperation of the first connecting portion 1040 and the second support plate, the first support plate is prevented from rotating away from the flywheel 300. In other embodiments of this utility model, the number of connecting rods 104 can be set to one. In this case, the first support plate and the second support plate of the mounting bracket 400 are arranged along the same straight line to ensure that the mounting bracket 400 has strong structural strength. The first connecting part 1040 on the connecting rod 104 and the second connecting part of the second support plate can be configured as one of the following: snap-fit ​​connection structure, threaded connection structure, internal and external thread mating structure, magnetic fixing structure, and tight-fit plug-in structure. This is used to ensure that the second support plate and the connecting rod 104 can still restrict the first support plate from moving away from the flywheel 300.

[0031] The housing has a splash port 105. In this embodiment, the splash port 105 and the connecting rod 104 are positioned opposite each other at both ends of the housing 100. It is understood that a flywheel 300 and a flint 500 are correspondingly mounted on the splash port 105. The splash port 105 allows sparks generated by the friction between the flywheel 300 and the flint 500 to be ejected outside the housing 100, making the sparks visible through the splash port 105. A baffle 106 is also provided between the connecting rod 104 and the splash port 105. The baffle 106 prevents sparks generated by the friction between the flywheel 300 and the flint 500 from splashing into the housing 100, reducing the probability of the gear set 200 being damaged by high-temperature corrosion and improving the overall service life of the gearbox. In other embodiments of this utility model, the splash nozzle 105 and the connecting rod 104 can be correspondingly arranged at the same position on the housing 100, and in this case, an installation bracket 400 is installed in the gap between the connecting rod 104 and the splash nozzle 105.

[0032] In this embodiment, the gear set 200 includes a first gear 210, a second gear 220, a third gear 230, and a fourth gear 240 that are sequentially meshed. The shaft of the first gear 210 extends outside the housing 100 to secure an external power component (e.g., a wheel, a rotary handle, an electric drive structure, etc.). The fourth gear 240 is coaxially fixed with the flywheel 300. When the external power component drives the first gear 210 to rotate, its torque is ultimately transmitted to the flywheel 300 through the fourth gear 240, enabling the flywheel 300 to rotate at high speed. In other embodiments of this invention, the gear set 200 may be composed of other combinations of gears.

[0033] It is understood that the outer surface of the flywheel 300 is covered with a friction part, which can generate sparks by rubbing against the flint 500 during the high-speed rotation of the flywheel 300. The structure of the friction part has been disclosed in the prior art, so it will not be described in detail here.

[0034] The mounting bracket 400 includes a fixed first support plate 410 and a second support plate 420. The first support plate 410 is suspended above the flywheel 300 and has a receiving groove 411 directly opposite the flywheel 300. A flint 500 is connected to the receiving groove 411, and the flint 500 can maintain continuous contact with the flywheel 300 under the action of gravity. In this embodiment, the first support plate 410 is elastic, and there is a gap 412 between the opening of the receiving groove 411 and the flywheel 300. The gap 412 is less than or equal to the distance between the first support plate 410 and the flywheel 300. The above configuration can increase the flexibility of the first support plate 410 and improve its service life. In some cases, the flint 500 can be installed and replaced by bending the first support plate 410 to increase its distance from the flywheel 300. At the same time, the above configuration can also reduce the risk of damage to the receiving groove 411 due to high temperature corrosion, further improving its service life. In other embodiments of this utility model, the first support plate 410 may be a rigid structure.

[0035] The second support plate 420 is provided with a second connecting portion 421 that is detachably fixedly connected to the first connecting portion 1040. In this embodiment, the second connecting portion 421 is disposed opposite to both ends of the second support plate 420 relative to the two connecting holes 1041. The second connecting portion 421 is a connecting block, which is detachably inserted and fixed into the connecting holes 1041. It is understood that the connecting rod 104 is elastic, and the connecting block is provided with an arc-shaped contact surface 4211. The arc-shaped contact surface 4211 is distributed on the connecting block facing the outer side of the connecting rod 104, and is used for sliding contact with the connecting rod 104. The above arrangement facilitates the installation of the second support plate 420 on the connecting rod 104, increases the installation speed between the two, and makes the installation process more convenient. In other embodiments of this utility model, the specific structure of the second connecting portion 421 can be adaptively adjusted according to the structure of the first connecting portion 1040.

[0036] The installation process of the toy spark gearbox provided in this embodiment is as follows: First, the gear set 200 and the flywheel 300 are rotatably installed in the housing 100. Then, the flint 500 is installed in the receiving groove 411 of the first support plate 410. Finally, force is applied to push the second support plate 420 between the two connecting rods 104, so that the connecting block is inserted and fixed in the connecting hole 1041. At this time, the second support plate 420 can contact the limiting block 1042 to limit the first support plate 410 to remain suspended above the flywheel 300. At this time, the receiving groove 411 is directly opposite the flywheel 300, and the flint 500 inside can maintain contact with the flywheel 300. When it is necessary to replace the flint 500, force is applied to pull the second support plate 420 out between the two connecting rods 104 to achieve convenient installation of the flint 500 without disassembling the housing 100. It has the advantages of convenient and simple installation, strong operability, and higher practicality.

[0037] Please refer to Figure 5 This illustration shows one embodiment of the toy spark gearbox provided by this utility model applied to a toy car. In the toy car 1 provided in this embodiment, the toy car 1 includes a car shell 10 and a chassis 20 that are fixedly connected. Wheels 30 are rotatably connected to the chassis 20. It can be understood that there are two sets of wheels 30, which enable the toy car 1 to move on a plane.

[0038] Understandably, the car shell 10 is made of a transparent material (such as transparent plastic) to allow players to observe the spark generation and splashing process through the transparent car shell 10. A splashing port 11 is provided on the car shell 10 opposite the flywheel 300, allowing sparks to splash out of the car shell 10 and increasing the viewing experience. In this embodiment, the housing 100 is fixedly connected to the chassis 20 via a snap-fit ​​structure, thus allowing the toy spark gearbox to be fixedly mounted on the chassis 20. One set of the two sets of wheels 30 is fixed to the axle of the first gear 210, so that when the wheel 30 rotates, it can drive the gear set 200 to rotate, thereby driving the flywheel 300 to rotate at high speed to generate sparks through friction with the flint 500. In other embodiments of this invention, the chassis 20 may be provided with other fixing structures for fixing the housing 100, such as bolt fixing structures.

[0039] For clarity, certain features described in individual embodiments of the present invention may be used in combination in a single embodiment. Furthermore, various features of the present invention described in individual embodiments may also be used individually or in any suitable form in sub-combinations.

Claims

1. A toy spark gearbox, comprising a housing, wherein a gear set and a flywheel connected by transmission are installed within the housing, characterized in that, It also includes a mounting bracket, wherein a connecting rod is protruding on the housing, and a first connecting part is provided on the connecting rod; the mounting bracket includes a fixed first support plate and a second support plate, the first support plate is suspended above the flywheel and has a receiving groove directly opposite the flywheel, a flint is connected in the receiving groove and the flint is in contact with the flywheel, the second support plate has a second connecting part that is detachably fixed to the first connecting part, the second support plate cooperates with the first connecting part to restrict the first support plate from moving away from the flywheel.

2. The toy spark gearbox as described in claim 1, characterized in that, The first support plate is elastic, and there is a gap between the opening of the receiving groove and the flywheel, the gap being less than or equal to the distance between the first support plate and the flywheel.

3. The toy spark gearbox as described in claim 1, characterized in that, The housing has a splash port, and the splash port and the connecting rod are disposed opposite to each other at both ends of the housing. The flywheel and the flint are respectively disposed on the splash port. The splash port is used to allow the sparks generated by the friction between the flywheel and the flint to be splashed out of the housing.

4. The toy spark gearbox as described in claim 3, characterized in that, The housing is further provided with a baffle between the connecting rod and the splash nozzle, the baffle being used to prevent sparks generated by the friction between the flywheel and the flint from splashing into the housing.

5. The toy spark gearbox as described in claim 3, characterized in that, The number of connecting rods is one or two. When the number of connecting rods is one, the first support plate and the second support plate are arranged along the same straight line. When the number of connecting rods is two, the two connecting rods are arranged opposite each other, and the first support plate and the second support plate are arranged perpendicularly.

6. The toy spark gearbox as described in claim 5, characterized in that, When there are two connecting rods, the first connecting part consists of a connecting hole and a limiting block. The limiting block is distributed on the outer circle of the connecting hole. The limiting block can be contacted with the second support plate to limit its rotation direction. The second connecting part is a connecting block, which is detachably inserted and fixed in the connecting hole.

7. The toy spark gearbox as described in claim 6, characterized in that, The connecting rod is elastic, and the connecting block is provided with an arc-shaped contact surface. The arc-shaped contact surface is distributed on the connecting block facing the outside of the connecting rod, and the arc-shaped contact surface is used for sliding contact with the connecting rod.

8. The toy spark gearbox as described in claim 5, characterized in that, When the number of connecting rods is one, the first connecting part and the second connecting part are configured as one of the following: snap-fit ​​connection structure, threaded connection structure, internal and external thread mating structure, magnetic fixing structure, and tight-fit plug-in structure.

9. The toy spark gearbox as described in claim 1, characterized in that, The gear set includes a first gear, a second gear, a third gear, and a fourth gear that are meshed together in sequence. The shaft of the first gear extends out of the housing to fix an external power component, and the fourth gear is coaxially fixed with the flywheel.

10. A toy car, comprising a fixedly connected shell and a chassis, wherein wheels are rotatably connected to the chassis, characterized in that, It also includes a toy spark gearbox as described in any one of claims 1-9, wherein the housing of the toy spark gearbox is fixed to the chassis, the gear set of the toy spark gearbox is connected to the wheel drive, the car body has a splash hole at the position opposite to the flywheel of the toy spark gearbox, and the car body is made of transparent material.

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