Waterproof gearbox structure of amphibious toy car

Abstract

The utility model relates to the technical field of toy cars, in particular to a waterproof gearbox structure of an amphibious toy car. According to the technical scheme, the wheel comprises a box body shell, a wheel rotating shaft penetrating through the box body shell and a driving device arranged in the box body shell, the driving device is in driving connection with the wheel rotating shaft, a rotating sealing component is arranged between the wheel rotating shaft and the box body shell, and the rotating sealing component is fixedly connected with the box body shell in a sealed mode. And the wheel rotating shaft is rotationally connected with the rotary sealing component through the O-shaped sealing ring. The waterproof structure has the beneficial effects that the rotary sealing part is arranged between the box body shell and the wheel rotating shaft, the rotary sealing part is in sealing connection with the box body shell, and the wheel rotating shaft is in rotary sealing connection with the rotary sealing part, so that the waterproof performance can be ensured, and meanwhile, the friction force received by the wheel rotating shaft in the rotating process is greatly reduced; the driving efficiency of the gear box on the wheel rotating shaft is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of toy vehicles, in particular to a waterproof gear box structure of an amphibious toy vehicle. Background Art

[0002] An amphibious toy car is a toy car that can move on land and in water. Due to its amphibious characteristics, it has high playability. Since the wheels of an amphibious toy car will be immersed in water when it moves in water, the gearbox used to drive the wheels to rotate needs to have good waterproof performance. At present, the gearbox of an amphibious toy car directly uses a sealing ring to connect the wheel shaft and the gearbox. In order to ensure waterproof performance, a sealing ring with a larger width or multiple sealing rings are required for sealing connection. At this time, the friction between the shaft and the gearbox is too large, which seriously affects the rotation of the shaft. The drive device in the gearbox needs to provide a large torque, and the shaft will also generate a lot of heat due to excessive friction during rotation, affecting the normal operation of the gearbox. Utility Model Content

[0003] The utility model aims to provide a waterproof gear box structure for an amphibious toy car, and more particularly to provide a waterproof gear box structure for an amphibious toy car with good waterproof performance and low friction force on a rotating shaft.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a waterproof gearbox structure for an amphibious toy car, comprising a box shell, a wheel shaft passing through the box shell, and a driving device arranged in the box shell, the driving device is drivingly connected to the wheel shaft, a rotating sealing component is arranged between the wheel shaft and the box shell, the rotating sealing component is fixedly sealed and connected to the box shell, and the wheel shaft is rotatably connected to the rotating sealing component through an O-ring.

[0005] Specifically, the rotating sealing component includes a first sealing component and a second sealing component, both of which pass through the wheel shaft and are connected to the wheel shaft for free rotation, and the O-ring is arranged between the first sealing component and the second sealing component.

[0006] Specifically, a clamping groove is provided on the box shell, and the first sealing component and the second sealing component are clamped and fixed in the clamping groove.

[0007] Specifically, a sealing connection groove is provided at the center position of one side of the first sealing component facing the second sealing component, and the O-ring is provided in the sealing connection groove.

[0008] Specifically, the box shell is composed of an upper shell and a lower shell, a shell sealing ring is arranged between the upper shell and the lower shell, and the rotating sealing component is sealed and connected to the box shell through the shell sealing ring.

[0009] The beneficial effect of the utility model is that a rotating sealing component is arranged between the box shell and the wheel shaft, and the rotating sealing component is sealed and connected to the box shell, and the wheel shaft is rotating and sealed and connected to the rotating sealing component, so that the friction force received by the wheel shaft during rotation can be greatly reduced while ensuring the waterproof performance, thereby improving the driving efficiency of the gear box on the wheel shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attached Figure 1 It is a schematic diagram of the disassembled structure of the waterproof gearbox structure in the embodiment;

[0011] Attached Figure 2 A diagram showing the split connection structure of the wheel shaft and the rotating sealing component in the embodiment;

[0012] Attached Figure 3 It is a top cross-sectional view of the waterproof gearbox structure in the embodiment;

[0013] Attached Figure 4 For attachment Figure 3 Enlarged structural diagram of part A in the middle. DETAILED DESCRIPTION

[0014] Example 1, reference Figure 1-4 A waterproof gearbox structure for an amphibious toy car comprises a box shell 1, a wheel shaft 2 passing through the box shell 1, and a driving device 3 arranged in the box shell 1, wherein the driving device 3 is drivingly connected to the wheel shaft 2, a rotating sealing component 4 is arranged between the wheel shaft 2 and the box shell 1, the rotating sealing component 4 is fixedly sealed and connected to the box shell 1, and the wheel shaft 2 is rotatably connected to the rotating sealing component 4 via an O-ring 21.

[0015] In this embodiment, a rotating seal component 4 is provided between the wheel shaft 2 and the housing 1, wherein the rotating seal component 4 is used for fixedly sealingly connecting with the housing 1, and the wheel shaft 2 is rotationally connected with the rotating seal component 4 through an O-ring 21. The rotating seal component 4 can ensure waterproof performance, and since the wheel shaft 2 is only in contact with the rotating seal component 4 through the O-ring 21, the friction force on the wheel shaft 2 during rotation is effectively reduced, thereby improving the driving efficiency of the gearbox to the wheel on the wheel shaft 2. Specifically, the housing 1 in this embodiment is composed of an upper housing 11 and a lower housing 12, and a housing seal ring 13 is provided between the upper housing 11 and the lower housing 12, and the rotating seal component 4 is also sealed and connected with the housing 1 through the housing seal ring 13. Thereby, the overall waterproof performance of the gearbox is effectively improved.

[0016] Specifically, the rotating sealing component 4 of this embodiment includes a first sealing component 41 and a second sealing component 42, both of which pass through the wheel shaft 2 and are freely rotatably connected with the wheel shaft 2, and the O-ring 21 is arranged between the first sealing component 41 and the second sealing component 42; a clamping groove 14 is arranged on the housing 1, and the first sealing component 41 and the second sealing component 42 are clamped and fixed in the clamping groove 14; in addition, a sealing connection groove 43 is arranged at the center position of the first sealing component 41 facing the second sealing component 42, and the O-ring 21 is arranged in the sealing connection groove 43. The rotating sealing component 4 of this embodiment is composed of the first sealing component 41 and the second sealing component 42. The O-ring 21 can be wrapped in the middle of the rotating sealing component 4 by using the first sealing component 41 and the second sealing component 42, which effectively improves the waterproof performance. At the same time, the first sealing component 41 and the second sealing component 42 can be effectively fixed in cooperation with the clamping groove 14 on the housing 1, further ensuring the waterproof performance of the gearbox. The first sealing component 41 is also provided with a sealing connection groove 43 for accommodating the O-ring 21, so as to ensure the sealing and waterproof performance while preventing the O-ring 21 from being squeezed and deformed, thereby avoiding excessive friction on the wheel shaft 2 caused by deformation of the O-ring 21.

[0017] Of course, the above are only preferred implementations of the present utility model, and are not intended to limit the scope of use of the present utility model. Therefore, any equivalent changes made to the principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A waterproof gearbox structure for an amphibious toy car, characterized in that: It includes a box shell, a wheel shaft passing through the box shell, and a driving device arranged in the box shell, the driving device is drivingly connected to the wheel shaft, a rotating sealing component is arranged between the wheel shaft and the box shell, the rotating sealing component is fixedly sealed and connected to the box shell, and the wheel shaft is rotatably connected to the rotating sealing component via an O-ring.

2. The waterproof gearbox structure of an amphibious toy car according to claim 1, characterized in that: The rotating sealing component includes a first sealing component and a second sealing component. The first sealing component and the second sealing component both pass through the wheel shaft and are connected to the wheel shaft for free rotation. The O-ring is arranged between the first sealing component and the second sealing component.

3. The waterproof gear box structure of an amphibious toy car according to claim 2, characterized in that: The box shell is provided with a clamping groove, and the first sealing component and the second sealing component are clamped and fixed in the clamping groove.

4. The waterproof gearbox structure of an amphibious toy vehicle according to claim 2, characterized in that: A sealing connection groove is provided at the center of one side of the first sealing component facing the second sealing component, and the O-ring is provided in the sealing connection groove.

5. The waterproof gear box structure of an amphibious toy car according to claim 1, characterized in that: The box shell is composed of an upper shell and a lower shell, a shell sealing ring is arranged between the upper shell and the lower shell, and the rotating sealing component is sealed and connected to the box shell through the shell sealing ring.

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