Transmission shaft for remote control toy car

Abstract

The transmission shaft for the remote control toy car comprises a hollow connecting rod, the outer walls of the two ends of the connecting rod are both connected with fixing cylinders in a sliding mode, the inner walls of the fixing cylinders are fixedly connected with sliding rods, the sliding rods are connected with the inner wall of the connecting rod in a sliding mode, and a gear is arranged in the connecting rod. During adjustment, the push block is pressed, the push block drives the rotating rod to move so as to enable the limiting groove to be separated from the limiting rod, rotation of the limiting rod to the rotating rod fails, at the moment, the fixing cylinder on one side is pushed or pulled, and the rotating rod is driven by the gear to rotate. The fixed cylinder moves to drive the sliding rod to move so as to drive the fixed cylinder on the other side through the rack and the gear, two-way synchronous adjustment is achieved, after adjustment is completed, the push block is loosened, the spring is reset, the rotating rod is reset, the limiting rod enters the limiting groove to limit the rotating rod, and adjustment and operation are convenient.

Description

Technical Field

[0001] The utility model relates to the field of remote control toy cars, in particular to a transmission shaft for a remote control toy car. Background Art

[0002] A toy remote control car is a model car that can be remotely controlled by a radio remote control.

[0003] The present application is an improvement on the existing technology. In the existing technology, the remote control car realizes the movement of front, back, left and right through the signal control of the external remote control device. These activities are inseparable from the power transmission between the two shafts with different axis centers or even between the two shafts whose relative positions are constantly changing during operation. The drive shaft of the toy car will wear out during use and needs to be replaced and maintained after long-term use. The wheelbases of different existing toy remote control cars are different. If an unmatched drive shaft is purchased, the drive shaft cannot adjust the length of the shaft body according to the use requirements, and the adaptability with the toy car body is low, which affects the use of the toy car. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a transmission shaft for a remote-controlled toy car.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A transmission shaft for a remote-controlled toy car comprises a hollow connecting rod, wherein the outer walls at both ends of the connecting rod are slidably connected to fixed cylinders, the inner wall of the fixed cylinder is fixedly connected to a sliding rod, and the sliding rod is slidably connected to the inner wall of the connecting rod, a gear is provided in the connecting rod, both sides of the gear are fixedly connected to fixing rings, and the fixing ring is rotatably connected to the connecting rod, both sides of the gear are meshed with racks symmetrically distributed around the center, and the rack is fixedly connected to the sliding rod, a rotating rod is slidably connected in the gear, a groove is provided on one side of the connecting rod, and the bottom inner wall of the groove is fixedly connected to symmetrically distributed limit rods, the top of the rotating rod is provided with symmetrically distributed limit grooves, and the limit grooves are adapted to the limit rods.

[0007] As a further solution of the present invention: a through slot is provided in the gear, and the through slot is adapted to the rotating rod.

[0008] As a further solution of the present invention: the outer wall of one end of the rotating rod extending out from the bottom of the gear is rotatably connected to a mounting ring, the bottom of the mounting ring is fixedly connected to a spring, and the other end of the spring is fixedly connected to the connecting rod.

[0009] As a further solution of the present invention: a push block is provided between the two groups of limit rods, and the push block is rotatably connected to the rotating rod.

[0010] As a further solution of the present invention: universal joints are installed on the sides of the two groups of fixed cylinders that are away from each other, and connecting seats are fixedly connected on the sides of the two groups of universal joints that are away from each other.

[0011] The utility model has the following beneficial effects:

[0012] The present invention can realize two-way synchronous adjustment by pressing the push block, and the spring resets the rotating rod, and the limit rod enters the limit groove to limit the rotating rod, which is convenient for adjustment and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a transmission shaft for a remote-controlled toy car proposed in the present invention;

[0014] Figure 2 This is a schematic diagram of the installation of a rotating rod for a transmission shaft of a remote-controlled toy car proposed in the present invention;

[0015] Figure 3 For this utility model Figure 1 A is an enlarged structural diagram of FIG.

[0016] Legend:

[0017] Connecting rod 1, fixing tube 2, sliding rod 3, universal joint 4, connecting seat 5, rack 6, gear 7, through slot 8, rotating rod 9, fixing ring 10, mounting ring 11, spring 12, limiting groove 13, limiting rod 14, groove 15, push block 16. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Reference Figure 1-3 The utility model provides a transmission shaft for a remote-controlled toy car, comprising a hollow connecting rod 1, the outer walls of both ends of the connecting rod 1 are slidably connected with a fixed cylinder 2, the inner wall of the fixed cylinder 2 is fixedly connected with a sliding rod 3, and the sliding rod 3 is slidably connected to the inner wall of the connecting rod 1, a gear 7 is provided in the connecting rod 1, both sides of the gear 7 are fixedly connected with a fixing ring 10, and the fixing ring 10 is rotatably connected to the connecting rod 1, both sides of the gear 7 are meshed with a centrally symmetrically distributed rack 6, and the rack 6 is fixedly connected to the sliding rod 3, a rotating rod 9 is slidably connected in the gear 7, a groove 15 is provided on one side of the connecting rod 1, and the bottom inner wall of the groove 15 is fixedly connected with a symmetrically distributed limit rod 14, and the top of the rotating rod 9 is provided with a symmetrically distributed limit groove 13, and the limit groove 13 is adapted to the limit rod 14.

[0021] A through slot 8 is provided in the gear 7 , and the through slot 8 is adapted to the rotating rod 9 .

[0022] The outer wall of one end of the rotating rod 9 extending out of the bottom of the gear 7 is rotatably connected to a mounting ring 11 , the bottom of the mounting ring 11 is fixedly connected to a spring 12 , and the other end of the spring 12 is fixedly connected to the connecting rod 1 .

[0023] A push block 16 is provided between the two sets of limiting rods 14 , and the push block 16 is rotatably connected to the rotating rod 9 .

[0024] Universal joints 4 are installed on the sides of the two sets of fixed cylinders 2 that are away from each other, and connecting seats 5 are fixedly connected to the sides of the two sets of universal joints 4 that are away from each other.

[0025] Working principle:

[0026] In this application, when adjusting, press the push block 16, the push block 16 drives the rotating rod 9 to move, thereby disengaging the limit slot 13 from the limit rod 14, and the limit rod 14 fails to rotate the rotating rod 9. At this time, push or pull the fixed cylinder 2 on one side, the fixed cylinder 2 moves to drive the slide rod 3 to move, and then drives the fixed cylinder 2 on the other side through the rack 6 and the gear 7, and adjusts in both directions synchronously. After the adjustment is completed, release the push block 16, the spring 12 resets the rotating rod 9, and then the limit rod 14 enters the limit slot 13 to limit the rotating rod 9, which is convenient for adjustment and operation.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A transmission shaft for a remote-controlled toy car, comprising a hollow connecting rod (1), characterized in that: The outer walls of both ends of the connecting rod (1) are slidably connected to fixed cylinders (2), the inner wall of the fixed cylinder (2) is fixedly connected to a sliding rod (3), and the sliding rod (3) is slidably connected to the inner wall of the connecting rod (1), a gear (7) is provided in the connecting rod (1), both sides of the gear (7) are fixedly connected to fixing rings (10), and the fixing ring (10) is rotatably connected to the connecting rod (1), both sides of the gear (7) are meshed with racks (6) distributed symmetrically in the center, and the racks (6) are fixedly connected to the sliding rod (3), a rotating rod (9) is slidably connected in the gear (7), a groove (15) is provided on one side of the connecting rod (1), and the inner wall of the bottom of the groove (15) is fixedly connected to symmetrically distributed limiting rods (14), and the top of the rotating rod (9) is provided with symmetrically distributed limiting grooves (13), and the limiting grooves (13) are adapted to the limiting rods (14).

2. A transmission shaft for a remote-controlled toy car according to claim 1, characterized in that: A through slot (8) is provided in the gear (7), and the through slot (8) is adapted to the rotating rod (9).

3. The transmission shaft for a remote-controlled toy car according to claim 1, characterized in that: The outer wall of one end of the rotating rod (9) extending out from the bottom of the gear (7) is rotatably connected to a mounting ring (11), the bottom of the mounting ring (11) is fixedly connected to a spring (12), and the other end of the spring (12) is fixedly connected to the connecting rod (1).

4. The transmission shaft for a remote-controlled toy car according to claim 1, characterized in that: A push block (16) is provided between the two groups of limit rods (14), and the push block (16) is rotatably connected to the rotating rod (9).

5. The transmission shaft for a remote-controlled toy car according to claim 1, characterized in that: Universal joints (4) are installed on the sides of the two groups of fixed cylinders (2) that are away from each other, and connecting seats (5) are fixedly connected to the sides of the two groups of universal joints (4) that are away from each other.

Images