Steerable carbon-free potential energy trolley

Abstract

The utility model relates to the technical field of carbon-free trolleys, in particular to a steerable carbon-free potential energy trolley which comprises a trolley frame and a cam, a weight frame is arranged in the middle of the trolley frame, a pull wire shaft is rotatably arranged at the front end of the trolley frame, and a gear reduction mechanism is rotatably arranged on the trolley frame. A first gear and a second gear are arranged at the two ends of the stay wire shaft respectively, a third gear is connected to the rear wheel, the first gear is in transmission connection with the third gear, the second gear is meshed with the input end of a gear reduction mechanism, the output end of the gear reduction mechanism is connected with a cam, and a steering shaft is rotatably arranged at the front end of the frame in the vertical direction. A connecting block is arranged at the top of the steering shaft and connected with a contact rod. According to the utility model, the rotating speed of the cam is reduced through the gear reducing mechanism, the running distance corresponding to the trolley when the cam rotates by a circle is effectively increased, the trolley can run in a specific and irregular track, the whole structure is simple, the assembly is convenient, and the maintenance is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon-free trolleys, in particular to a steerable carbon-free potential energy trolley. Background Art

[0002] As an environmentally friendly teaching tool and competition model, the carbon-free car has a wide range of applications in education and science and technology competitions. It utilizes the principle of converting gravitational potential energy into mechanical energy, using the falling weights to propel the car forward, thus achieving self-propelled movement without the need for external energy.

[0003] The steering mechanism in the existing carbon-free car rotates multiple times through a cam, thereby being able to meet repetitive and regular steering such as S-shaped or figure-8-shaped steering. This design has certain limitations and cannot cope with specific and irregular trajectories. Utility Model Content

[0004] The present invention aims to at least solve the technical problems existing in the prior art. To this end, the present invention proposes a steerable carbon-free potential energy trolley, which reduces the rotational speed of a cam through a gear reduction mechanism, effectively increasing the distance traveled by the trolley per one rotation of the cam, thereby enabling the trolley to travel along specific, irregular trajectories.

[0005] According to some embodiments of the present invention, a steerable carbon-free potential energy trolley includes a frame and a cam, the rear end of the frame is rotatably provided with a rear wheel axle, and rear wheels can be provided on both sides of the rear wheel axle, a weight rack is provided in the middle of the frame, the front end of the frame is rotatably provided with a wire pull shaft, a wire pull ring is provided on the wire pull shaft, and a gear reduction mechanism is rotatably provided on the frame, a first gear and a second gear are respectively provided at both ends of the wire pull shaft, a third gear is connected to the rear wheel, the first gear is transmission-connected to the third gear, the second gear is meshed with the input end of the gear reduction mechanism, and the output end of the gear reduction mechanism is connected to a cam, the front end of the frame is rotatably provided with a steering shaft in a vertical direction, the bottom of the steering shaft is rotatably provided with a steering wheel, the top of the steering shaft is provided with a connecting block, a contact rod is connected to the connecting block, and the contact rod is arranged corresponding to the outer contour of the cam.

[0006] According to some embodiments of the present invention, a steerable carbon-free potential energy vehicle has at least the following beneficial effects:

[0007] The utility model is provided with a weight rack in the middle of the frame, and a wire drawing shaft is rotatably provided at the front end of the frame, and a wire drawing ring is provided on the wire drawing shaft. When the weight falls from the weight rack, it can drive the wire drawing shaft to rotate. A first gear and a second gear are respectively provided at both ends of the wire drawing shaft. The rear wheel is connected to a third gear, and the first gear is connected to the third gear in a transmission connection. The rotation of the wire drawing shaft drives one of the rear wheels to rotate, and then drives the other rear wheel to rotate through the rear wheel shaft. The second gear is engaged with the input end of the gear reduction mechanism, and the output end of the gear reduction mechanism is connected to a cam. After the second gear is decelerated by the gear reduction mechanism, it drives the cam to rotate. The utility model reduces the rotation speed of the cam through the gear reduction mechanism, effectively increases the distance traveled by the trolley corresponding to one circle of the cam rotation, and thus can meet the specific and irregular trajectory of the trolley. The overall structure is simple, easy to assemble, and easy to maintain.

[0008] According to some embodiments of the steerable carbon-free potential energy cart of the present invention, the gear reduction mechanism includes a fourth gear, a fifth gear and a sixth gear, the number of teeth of the second gear and the number of teeth of the fifth gear are both smaller than the number of teeth of the fourth gear and the number of teeth of the sixth gear, the fourth gear and the sixth gear are both rotatably connected to the frame, the fifth gear is arranged in the middle of the fourth gear, the fourth gear is meshed with the second gear, the fifth gear is meshed with the sixth gear, and the middle of the cam is connected to the middle of the sixth gear.

[0009] According to some embodiments of the steerable carbon-free potential energy vehicle of the present invention, a first rotating shaft and a second rotating shaft are rotatably provided on the frame, the first rotating shaft is connected to the fourth gear, the second rotating shaft is passed through the frame, and the two ends of the second rotating shaft are respectively connected to the middle part of the sixth gear and the middle part of the cam.

[0010] According to some embodiments of the steerable carbon-free potential energy trolley of the present invention, the levels of the second gear, the fourth gear and the sixth gear are sequentially increased.

[0011] According to some embodiments of the steerable carbon-free potential energy trolley of the present invention, the weight rack includes two weight rods, a pulley shaft is provided between the two weight rods, the pulley shaft is located at the top of the weight rods, and a fixed pulley is provided on the pulley shaft.

[0012] According to some embodiments of the steerable carbon-free potential energy trolley of the present invention, the weight rack includes two weight shafts, and the two weight shafts and two weight rods together form an accommodating space.

[0013] According to some embodiments of the steerable carbon-free potential energy vehicle of the present invention, the frame includes a base, a first side panel, a second side panel and a front frame body, the first side panel and the second side panel are respectively arranged at both ends of the base, the front frame body is arranged at the front end of the base, the two ends of the rear wheel axle and the two ends of the wire pull shaft are respectively connected to the first side panel and the second side panel, and the steering shaft is arranged on the front frame body.

[0014] According to some embodiments of the steerable carbon-free potential energy trolley of the present invention, a micrometer is provided on the connecting block, the micrometer passes through the connecting block and is threadedly connected to the connecting block, and the micrometer is fixedly connected to the contact rod.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 The structure of the embodiment of the utility model is shown in FIG. Figure 1 .

[0018] Figure 2 The structure of the embodiment of the utility model is shown in FIG. Figure 2 .

[0019] Figure 3 This is a schematic structural diagram of the gear reduction mechanism of an embodiment of the present utility model.

[0020] Figure 4 This is a schematic structural diagram of a vehicle frame according to an embodiment of the present invention.

[0021] Figure markings: 1, frame, 2, cam, 3, rear wheel axle, 4, rear wheel, 5, weight rack, 6, cable shaft, 7, cable ring, 8, gear reduction mechanism, 9, first gear, 10, second gear, 11, third gear, 12, steering shaft, 13, steering wheel, 14, connecting block, 15, contact rod, 16, fourth gear, 17, fifth gear, 18, sixth gear, 19, weight rod, 20, pulley shaft, 21, weight shaft, 22, base, 23, first side plate, 24, second side plate, 25, front frame, 26, micrometer head, 27, fixed pulley. DETAILED DESCRIPTION

[0022] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0023] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, left, right, front, and back, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the modules or components referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0024] In the description of this utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] like Figures 1-4 As shown, an embodiment of the utility model provides a steerable carbon-free potential energy vehicle.

[0027] A steerable carbon-free potential energy vehicle comprises a frame 1 and a cam 2. The rear end of the frame 1 is rotatably provided with a rear wheel shaft 3. Both sides of the rear wheel shaft 3 can be provided with rear wheels 4. A weight rack 5 is provided in the middle of the frame 1. The front end of the frame 1 is rotatably provided with a wire pull shaft 6. A wire pull ring 7 is provided on the wire pull shaft 6. A gear reduction mechanism 8 is rotatably provided on the frame 1. The two ends of the wire pull shaft 6 are respectively provided with a first gear 9 and a second gear 10. The rear wheel 4 is connected to a third gear. 11, the first gear 9 is transmission-connected with the third gear 11, the second gear 10 is meshed with the input end of the gear reduction mechanism 8, the output end of the gear reduction mechanism 8 is connected with a cam 2, the front end of the frame 1 is rotatably provided with a steering shaft 12 in the vertical direction, the bottom of the steering shaft 12 is rotatably provided with a steering wheel 13, the top of the steering shaft 12 is provided with a connecting block 14, the connecting block 14 is connected to a contact rod 15, and the contact rod 15 is arranged corresponding to the outer contour of the cam 2.

[0028] The utility model is provided with a weight rack 5 in the middle of the frame 1, and a wire drawing shaft 6 is rotatably provided at the front end of the frame 1, and a wire drawing ring 7 is provided on the wire drawing shaft 6. When the weight falls from the weight rack 5, it can drive the wire drawing shaft 6 to rotate. A first gear 9 and a second gear 10 are respectively provided at both ends of the wire drawing shaft 6. The rear wheel 4 is connected with a third gear 11. The first gear 9 is transmission-connected with the third gear 11. The rotation of the wire drawing shaft 6 drives one of the rear wheels 4 to rotate, and then drives the other rear wheel 4 to rotate through the rear wheel shaft 3. The second gear 10 is engaged with the input end of the gear reduction mechanism 8, and the output end of the gear reduction mechanism 8 is connected with a cam 2. After the second gear 10 is decelerated by the gear reduction mechanism 8, it drives the cam 2 to rotate. The utility model reduces the rotation speed of the cam 2 through the gear reduction mechanism 8, effectively increases the distance traveled by the trolley corresponding to one circle of the cam 2, and thus can meet the specific and irregular trajectory of the trolley.

[0029] The steerable carbon-free potential energy vehicle described in this embodiment comprises a gear reduction mechanism 8 including a fourth gear 16, a fifth gear 17, and a sixth gear 18. The number of teeth of the second gear 10 and the number of teeth of the fifth gear 17 are both smaller than the number of teeth of the fourth gear 16 and the number of teeth of the sixth gear 18. The fourth gear 16 and the sixth gear 18 are both rotatably connected to the vehicle frame 1. The fifth gear 17 is disposed in the middle of the fourth gear 16. The fourth gear 16 meshes with the second gear 10, and the fifth gear 17 meshes with the sixth gear 18. The middle portion of the cam 2 is connected to the middle portion of the sixth gear 18. Specifically, the second gear 10 and the fourth gear 16 implement a first set of reductions, while the fifth gear 17 and the sixth gear 18 implement a second set of reductions. Through the first and second sets of reductions, the reduction ratio is high. One rotation of the cam 2 corresponds to a longer distance traveled by the vehicle, thereby meeting the vehicle's need to travel a longer, specific, and irregular trajectory. The overall structure is simple, convenient to assemble, and easy to maintain.

[0030] In the steerable carbon-free potential energy vehicle described in this embodiment, a first rotating shaft and a second rotating shaft are rotatably provided on the vehicle frame 1. The first rotating shaft is connected to the fourth gear 16. The second rotating shaft is provided through the vehicle frame 1. The ends of the second rotating shaft are respectively connected to the middle portion of the sixth gear 18 and the middle portion of the cam 2. Specifically, the above structure has good stability and a simple structure.

[0031] In the steerable carbon-free potential energy vehicle of this embodiment, the second gear 10, the fourth gear 16, and the sixth gear 18 are sequentially raised in height. Specifically, the cam 2 is of a certain size and has a large rotation radius. The above effectively raises the height of the cam 2, providing the cam 2 with more rotation space, allowing the cam 2 to rotate smoothly.

[0032] In the steerable carbon-free potential energy trolley of this embodiment, the weight frame 5 includes two weight rods 19, a pulley shaft 20 is provided between the two weight rods 19, the pulley shaft 20 is located at the top of the weight rods 19, and a fixed pulley 27 is provided on the pulley shaft 20. Specifically, the above arrangement has a simple structure and good stability.

[0033] In the steerable carbon-free potential energy trolley of this embodiment, the weight rack 5 includes two weight shafts 21, which together with two weight rods 19 form a receiving space. Specifically, the above arrangement can guide the falling of the weight.

[0034] In some embodiments, the height of the two weight shafts 21 is slightly lower than the two weight rods 19 to reduce the overall weight of the vehicle body.

[0035] The present embodiment describes a steerable carbon-free potential energy vehicle, wherein the vehicle frame 1 includes a base 22, a first side panel 23, a second side panel 24, and a front frame body 25. The first side panel 23 and the second side panel 24 are respectively arranged at the two ends of the base 22, and the front frame body 25 is arranged at the front end of the base 22. Both ends of the rear wheel axle 3 and both ends of the cable shaft 6 are respectively connected to the first side panel 23 and the second side panel 24, and the steering shaft 12 is arranged on the front frame body 25. Specifically, the above structure has good stability for the rear wheel axle 3 and the cable shaft 6. It can be understood that the gear reduction mechanism 8 and the cam 2 are arranged on the first side panel 23 or the second side panel 24.

[0036] In the steerable carbon-free potential energy vehicle described in this embodiment, a micrometer 26 is provided on the connecting block 14. The micrometer 26 passes through the connecting block 14 and is threadedly connected to the connecting block 14. The micrometer 26 is fixedly connected to the contact rod 15. Specifically, the above arrangement allows for fine-tuning of the steering shaft 12 to adjust the direction of the steering wheel 13.

[0037] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A steerable carbon-free potential energy vehicle, characterized by: The cam comprises a frame and a rear wheel axle rotatably provided at the rear end of the frame, rear wheels can be provided on both sides of the rear wheel axle, a weight rack is provided in the middle of the frame, a wire pull shaft is rotatably provided at the front end of the frame, a wire pull shaft is provided with a wire pull ring, a gear reduction mechanism is rotatably provided on the frame, a first gear and a second gear are respectively provided at both ends of the wire pull shaft, a third gear is connected to the rear wheel, the first gear is transmission-connected to the third gear, the second gear is meshed with the input end of the gear reduction mechanism, a cam is connected to the output end of the gear reduction mechanism, a steering shaft is rotatably provided at the front end of the frame in a vertical direction, a steering wheel is rotatably provided at the bottom of the steering shaft, a connecting block is provided at the top of the steering shaft, a contact rod is connected to the connecting block, and the contact rod is arranged corresponding to the outer contour of the cam.

2. The steerable carbon-free potential energy vehicle according to claim 1, characterized in that: The gear reduction mechanism includes a fourth gear, a fifth gear and a sixth gear. The number of teeth of the second gear and the number of teeth of the fifth gear are both smaller than the number of teeth of the fourth gear and the number of teeth of the sixth gear. The fourth gear and the sixth gear are both rotatably connected to the frame. The fifth gear is arranged in the middle of the fourth gear. The fourth gear is meshed with the second gear. The fifth gear is meshed with the sixth gear. The middle of the cam is connected to the middle of the sixth gear.

3. The steerable carbon-free potential energy vehicle according to claim 2, characterized in that: A first rotating shaft and a second rotating shaft are rotatably provided on the frame, the first rotating shaft is connected to the fourth gear, the second rotating shaft is passed through the frame, and the two ends of the second rotating shaft are respectively connected to the middle of the sixth gear and the middle of the cam.

4. The steerable carbon-free potential energy vehicle according to claim 2, characterized in that: The levels of the second gear, the fourth gear, and the sixth gear are sequentially increased.

5. The steerable carbon-free potential energy vehicle according to claim 1, characterized in that: The weight rack comprises two weight rods, a pulley shaft is arranged between the two weight rods, the pulley shaft is located at the top of the weight rods, and a fixed pulley is arranged on the pulley shaft.

6. The steerable carbon-free potential energy vehicle according to claim 5, characterized in that: The weight rack includes two weight shafts, and the two weight shafts and two weight rods together form an accommodating space.

7. The steerable carbon-free potential energy vehicle according to claim 1, characterized in that: The frame includes a base, a first side panel, a second side panel and a front frame body, the first side panel and the second side panel are respectively arranged at both ends of the base, the front frame body is arranged at the front end of the base, the two ends of the rear wheel axle and the two ends of the cable shaft are respectively connected to the first side panel and the second side panel, and the steering shaft is arranged on the front frame body.

8. The steerable carbon-free potential energy vehicle according to claim 1, characterized in that: The connecting block is provided with a micrometer head, which passes through the connecting block and is threadedly connected to the connecting block. The micrometer head is fixedly connected to the contact rod.

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