A clockwork car with variable trajectory

Abstract

The invention discloses a clockwork car with a variable track, which belongs to the field of toy cars. The clockwork car with a variable track comprises a frame, a steering wheel is installed at the front end of the frame, two bases are symmetrically installed on both sides of the rear end of the frame along the height direction, and a power shaft, a crank shaft, a driving shaft and a driven shaft are rotatably connected between the two bases from top to bottom in sequence; a clockwork roll is fixedly installed on the power shaft; the power shaft and the crank shaft are connected by a first transmission device, and the crank shaft and the driving shaft are connected by a second transmission device; one end of the crank shaft is fixedly connected to a rocker; one end of the driving shaft is fixedly connected to a driving wheel; a driven wheel is fixedly connected to the side of the driven shaft opposite to the driving wheel; the rocker and the steering wheel are rotatably connected by a connecting rod mechanism, which solves the problem of the single track of the existing toy car.

Description

Technical Field

[0001] The invention relates to the field of toy cars, and in particular to a clockwork car with a variable track. Background Art

[0002] As people's living standards improve, they have higher requirements for toy cars such as clockwork cars. However, the clockwork cars currently on the market basically move in a simple straight line. Without the action of external force, they generally do not change the direction of travel. Such cars have a single path and lack interest when used for a long time. In order to solve the problem of a single track for the car, the present invention provides a clockwork car with a variable track. Summary of the invention

[0003] The purpose of the present invention is to overcome the above technical deficiencies, to provide a clockwork car with a variable trajectory, and to solve the technical problem of the single trajectory of toy cars in the prior art.

[0004] To achieve the above technical purpose, the technical solution of the present invention includes a clockwork trolley with variable trajectory, including a frame, a steering wheel is installed at the front end of the frame, two bases are symmetrically installed on both sides of the rear end of the frame along the height direction, a power shaft, a crank shaft, a driving shaft and a driven shaft are rotatably connected between the two bases from top to bottom, the power shaft and the crank shaft are connected by a first transmission device, and the crank shaft and the driving shaft are connected by a second transmission device; a spring roll is fixedly installed on the power shaft, a side plate is fixedly installed on the base adjacent to the spring roll, one end of the spring roll is fixedly connected to the power shaft, and the other end of the spring roll is fixedly connected to the side plate; one end of the crank shaft extends from one of the bases and is fixedly connected to the middle position of the rocker; one end of the driving shaft extends from the other base and is fixedly connected to the driving wheel, and the rocker and the driving wheel are respectively located on opposite sides; a driven wheel is fixedly connected to the side of the driven shaft opposite to the driving wheel; the rocker and the steering wheel are rotatably connected through a connecting rod mechanism.

[0005] Compared with the prior art, the beneficial effects of the present invention include: the spring trolley with variable trajectory provided by the present invention uses the spring coil as the power component, converts the elastic potential energy of the spring coil into kinetic energy, and the crankshaft, rocker and connecting rod mechanism can realize the reciprocating swinging rotation of the steering wheel, thereby realizing the change of trajectory and increasing the fun. The magnitude of the power can be changed by adjusting the degree of tightening of the winding power shaft of the spring, thereby adjusting the trajectory. The trolley also includes a speed limiting system, which is composed of a ring, a disc and two flying balls. The centrifugal force of the flying balls makes the disc contact or separate with the side plate, and the friction between the disc and the side plate is used to ensure the stability of the trolley's speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 A schematic diagram of the structure of a clockwork trolley with a variable trajectory provided by the present invention;

[0007] Figure 2 A partial enlarged view of the power device and the speed limiting device of the clockwork trolley with variable trajectory provided by the present invention;

[0008] Figure 3 This is a front view of the track-variable clockwork trolley provided by the present invention without the box cover;

[0009] Figure 4 It is a schematic diagram of the structure of the box cover;

[0010] Figure 5 It is a schematic diagram of the structure of the clockwork coil;

[0011] Figure 6 It is a schematic diagram of the structure of the speed limiting device;

[0012] Figure 7 It is a schematic diagram of the structure of the power shaft;

[0013] Figure 8 is a structural schematic diagram of the first transmission gear;

[0014] 1-frame, 2-base on one side, 3-base on the other side, 4-driven wheel, 5-driven shaft, 6-steering wheel, 7-box cover, 8-second connecting rod, 9-first connecting rod, 10-spring, 11-power shaft, 12-speed limiting device, 13-crank shaft, 14-rocker, 15-driving shaft, 16-driving wheel, 17-convex plate, 18-side plate, 19-first protruding part, 20-steering wheel mounting frame, 21-wheel axle, 22-rotating shaft, 23-first transmission gear, 24-convex block, 101-rectangular hole, 102-rectangular hole, 201-circular ring, 202-flying ball, 203-circular disc, 204-thin rope, 301-rectangular protrusion, 302-triangular protrusion. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0016] The present invention provides a clockwork trolley with a variable trajectory, comprising a frame 1, wherein a steering wheel 6 is installed at the front end of the frame 1, and two bases 2 and 3 are symmetrically installed on both sides of the rear end of the frame 1 along the height direction, and a power shaft 11, a crank shaft 13, a driving shaft 15 and a driven shaft 5 are rotatably connected between the two bases 2 and 3 from top to bottom, and the power shaft 11 and the crank shaft 13 are connected by a first transmission device, and the crank shaft 13 and the driving shaft 15 are connected by a second transmission device; a clockwork reel 10 is fixedly installed on the power shaft 11, and a base adjacent to the clockwork reel 10 is connected by a second transmission device. A side plate 18 is fixedly mounted on the seat 2, one end of the clockwork roll 10 is fixedly connected to the power shaft 11, and the other end of the clockwork roll 10 is fixedly connected to the side plate 18; one end of the crank shaft 13 extends from one of the bases 3 and is fixedly connected to the middle position of the rocker 14; one end of the driving shaft 15 extends from the other base 2 and is fixedly connected to the driving wheel 16, and the rocker 14 and the driving wheel 16 are respectively located on opposite sides; a driven wheel 4 is fixedly connected to the side of the driven shaft 5 opposite to the driving wheel 16; the rocker 14 and the steering wheel 16 are rotatably connected through a connecting rod mechanism. The clockwork trolley with variable trajectory can realize trajectory changes during the forward movement, which increases the fun. The power can be adjusted by the degree of tightening of the clockwork roll 10, thereby adjusting the forward trajectory.

[0017] Embodiment 1:

[0018] In order to solve the problem that the existing toy cars have a single track and lack of fun, the embodiment 1 of the present invention provides a clockwork car with a variable track. The power device and speed limiter of the existing car are improved so that the track can be changed during the walking process, which increases the fun. Figure 1-Figure 8 ,in Figure 1 A schematic diagram of the structure of a clockwork trolley with a variable trajectory provided by the present invention; Figure 2 A partial enlarged view of the power device and the speed limiting system of the clockwork trolley with variable trajectory provided by the present invention; Figure 3 It is a front view of the clockwork trolley with variable trajectory provided by the present invention; Figure 4 It is a schematic diagram of the structure of the box cover; Figure 5 It is a schematic diagram of the structure of the clockwork coil; Figure 6 It is a schematic diagram of the structure of the speed limiting device; Figure 7 It is a schematic diagram of the structure of the power shaft; Figure 8 It is a schematic diagram of the mechanism of the first transmission gear.

[0019] like Figure 1 and Figure 2As shown, a clockwork trolley with a variable trajectory includes a frame 1, a steering wheel 6 is installed at the front end of the frame, two bases 2, 3 are symmetrically installed on both sides of the rear end of the frame 1 along the height direction, and a power shaft 11, a crank shaft 13, a driving shaft 15 and a driven shaft 5 are rotatably connected between the two bases 2, 3 from top to bottom. Specifically, the power shaft 11, the crank shaft 13, the driving shaft 15 and the driven shaft 4 can be rotatably connected to the two bases 2, 3 through bearings.

[0020] like Figure 2 As shown, a spring roll 10 is fixedly installed on the power shaft 11, and the power of the trolley is provided by the spring roll 10. A side plate 18 is fixedly installed on the base 2 adjacent to the spring roll 10. One end of the spring roll 10 is fixedly connected to the power shaft 11, specifically, a rectangular boss 301 on the power shaft 11 is connected in a shape-fitting manner with a rectangular hole 102 at the inner end of the spring roll 10. The other end of the spring roll 10 is connected to the side plate 18 in a shape-fitting manner through a rectangular hole 101 on the other end of the spring roll 10 and a protruding portion 19 on the side plate 18. The connection between the spring roll 10 and the power shaft 11 and the side plate 18 may not be limited to the shape-fitting connection, and may also be fixedly connected by snap-fitting, bolts or other fixed connection methods. When the user rotates the power shaft 11, the spring coil 10 can be wound around the power shaft 11 and tightened to a suitable degree; when the trolley is released, the spring coil 10 converts elastic potential energy into power, and the power shaft 11 can rotate under the action of the spring coil 10, thereby providing power for the trolley to move forward. The power can be adjusted by adjusting the tightening degree of the spring coil 10, thereby adjusting the walking track of the trolley.

[0021] like Figure 2 As shown, the power shaft 11 is connected to the crank shaft 12 through a first gear transmission device, and the first gear transmission device includes a first transmission gear fixedly mounted on the power shaft 11 and a second transmission gear fixedly mounted on the crank shaft 13 and meshing with the first transmission gear. When the power shaft 11 rotates under the action of the mainspring 10, the crank shaft 13 is driven to rotate through the first gear transmission device.

[0022] like Figure 7 and Figure 8As shown, the power shaft 11 is evenly spaced along the circumferential direction with a plurality of triangular protrusions 302, and the space between two adjacent triangular protrusions 302 is similar to the tooth groove on the ratchet. The first transmission gear 23 is evenly spaced along the circumferential direction with a plurality of protrusions 24 that cooperate with the triangular protrusions 302, and the protrusions 24 are similar to ratchet teeth. In this way, when the spring is storing energy, the protrusions 24 slide over the back of the triangular protrusions 302, and the first transmission gear 23 does not move at this time, and the power shaft 11 can be directly rotated to store energy without driving the first transmission gear 23. When the spring 10 is released to do work, the protrusions 24 clamp the triangular slots to make the power shaft 11 drive the first transmission gear 23 to transmit, and the driving wheel 16 and the four-bar linkage move. The method can save more effort when storing energy for the spring roll 10 and does not need to drive the transmission mechanism behind. At the same time, after the spring roll 10 is restored to its original state, it only needs to rotate the spring again to store energy to continue moving forward, so that the measurement track is uninterrupted, and there is no need to restore the entire transmission mechanism, saving time, and making it easy to observe the track.

[0023] like Figure 2 As shown, one end of the crank shaft 13 extends from one of the bases 3 and is fixedly connected to the middle position of the rocker 14, and the rocker 14 is rotatably connected to the steering wheel 6 via a connecting rod mechanism. When the crank shaft 13 rotates, it drives the rocker 14 to rotate, and the rocker 14 is rotatably connected to the steering wheel 6 via a connecting rod mechanism. The connecting rod mechanism drives the steering wheel 6 to swing back and forth to achieve the reciprocating change of the rotation direction of the steering wheel 6, thereby achieving variable trajectory and increasing interest.

[0024] like Figure 2 As shown, the crankshaft 13 and the driving shaft 15 are connected in transmission via a second gear transmission device, and the second gear transmission device includes a third transmission gear fixedly mounted on the crankshaft 13 and a fourth transmission gear fixedly mounted on the driving shaft 15 and meshing with the third transmission gear. The crankshaft 13 drives the driving shaft 15 to rotate under the action of the second gear transmission device, and the driving shaft 15 rotates to drive the driving wheel 16 to rotate, thereby driving the trolley to move forward.

[0025] One end of the driving shaft 15 extends from the other base 2 and is fixedly connected to the driving wheel 16. The rocker 14 and the driving wheel 16 are respectively located on opposite sides. The driven shaft 5 is fixedly connected to the driven wheel 4 on the side opposite to the driving wheel 16. When the driving shaft 15 rotates, the driving wheel 16 is driven to rotate, thereby driving the trolley forward.

[0026] In order to provide sufficient power and enable the vehicle to travel a longer distance, the diameters of the first transmission gear and the third transmission gear are respectively larger than the diameters of the second transmission gear and the fourth transmission gear.

[0027] The first gear transmission device and the second gear transmission device can also be replaced by chain transmission or belt transmission, and the transmission gear can be replaced by a transmission sprocket or a pulley, but gear transmission is preferred.

[0028] like Figure 3 As shown, the height of the front end of the frame 1 is higher than the height of the rear end of the frame 1, the steering wheel 6 is provided and is located at the middle position of the front end of the frame 1, the steering wheel 6 is mounted on the steering wheel mounting frame 20 through the wheel axle 21, the steering wheel mounting frame 20 is located at the bottom of the front end of the frame 1, and the steering wheel mounting frame 20 is rotatably connected with the front end of the frame 1 through the rotating shaft 22. The connecting rod mechanism includes a first connecting rod 9 and a second connecting rod 8; one end of the rocker 14 is connected to the first connecting rod 9 through a first universal joint, the first connecting rod 9 and the second connecting rod 8 are connected through a second universal joint, the second connecting rod 8 is fixedly connected to the top end of the rotating shaft 22, the rotating shaft 22 vertically passes through the front end of the frame 1 and is rotatably connected to the frame 1, and the bottom of the rotating shaft 22 is fixedly connected to the steering wheel mounting frame 20 and drives the steering wheel mounting frame 20 to rotate. When the crankshaft 13 rotates and drives the rocker 14 to rotate, the front wheel 6 is driven to swing back and forth through the connecting rod mechanism, thereby continuously adjusting and changing the forward direction of the vehicle to achieve adjustable trajectory.

[0029] Furthermore, in order to facilitate installation, the side panel 18 includes a first protruding portion 19 and a second protruding portion 17. The first protruding portion 19 is opposite to the mainspring roll 10 on the power shaft 11 and is fixedly connected to the first end 101 of the mainspring roll 10. The second protruding portion 17 is a convex plate, which is spaced a certain distance from and parallel to the base 2 on which the side panel 18 is installed.

[0030] like Figure 2 and Figure 6 As shown, the variable-trajectory clockwork trolley provided by the present invention also includes a speed limiting device 12, which includes a ring 201, a disc 203 and two flying balls 202. The ring 201 is fixedly mounted on the first end of the crank shaft 13, and the disc 203 is rotatably sleeved on the second end of the crank shaft 13. The ring 201 and the disc 203 are fixedly connected by two thin ropes 204, and a flying ball 202 is respectively sleeved on the two thin ropes 204. The ring 201 is located between the convex plate and the base, and the ring 201 is fixed to the crank shaft 13 by a pin.

[0031] The working principle of the speed limiting device 12 is that when the crankshaft 13 rotates, the ring 201 is driven to rotate and the flying ball 202 is driven to rotate around the crankshaft 13. When the rotation speed of the flying ball 202 is large enough, the flying ball 202 pulls the disc 203 through the thin rope 201 under the action of centrifugal force. Since the ring 201 is fixed through the pin hole above, the disc 203 is pulled closer to the ring 201 by the pulling force of the thin rope 204, so that the disc 203 contacts the convex plate on the side plate. The greater the speed, the greater the contact pressure. The rotation of the crankshaft 13 causes friction between the disc 203 and the convex plate, preventing the crankshaft 13 from rotating too fast, thereby playing the role of speed limiting. The speed limiting device can ensure the stability of the vehicle's travel speed.

[0032] like Figure 1 As shown, further, the track-variable clockwork trolley further comprises a box cover 7, and the two ends of the box cover 7 are respectively fixedly connected to the top ends of the two bases 1. The box cover 7 can be used to store things, which increases the fun.

[0033] The working principle of the variable trajectory clockwork trolley provided by the present invention is as follows: when the user rotates the power shaft 11, the clockwork roll 10 is wound around the power shaft 11 and tightened to a suitable degree; when the trolley is released, the power shaft 11 can rotate under the action of the clockwork, and the power shaft 11 drives the crank shaft 13 to rotate under the action of the first transmission device, and then the second transmission device drives the driving shaft 15 to rotate, and when the crank shaft 13 rotates, it drives the rocker 14 to rotate, and the rocker 14 rotates through the connecting rod mechanism to drive the steering wheel 6 to swing back and forth, thereby realizing the adjustment and change of the rotation direction, and the driving shaft 15 rotates to drive the driving wheel 16 to rotate, and the driving wheel 16 as a driving wheel drives the driven wheel 4 to rotate, thereby driving the entire trolley forward. At the same time, the trolley can also adjust the size of the power by adjusting the tightening degree of the clockwork roll 10, and adjust the walking track of the trolley by adjusting the size of the power.

[0034] Therefore, the track-variable clockwork trolley provided by the present invention can change its track during the walking process, which increases the fun. The power can be adjusted by adjusting the tightening degree of the clockwork coil 10, thereby adjusting the track.

[0035] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A clockwork trolley with a variable trajectory, comprising a frame, characterized in that: The front end of the frame is provided with a steering wheel, and two bases are symmetrically installed on both sides of the rear end of the frame along the height direction, and a power shaft, a crank shaft, a driving shaft and a driven shaft are rotatably connected between the two bases from top to bottom, and the power shaft and the crank shaft are connected through a first transmission device, and the crank shaft and the driving shaft are connected through a second transmission device; a spring roll is fixedly installed on the power shaft, and a side plate is fixedly installed on the base adjacent to the spring roll, one end of the spring roll is fixedly connected to the power shaft, and the other end of the spring roll is fixedly connected to the side plate; one end of the crank shaft extends from one of the bases and is fixedly connected to the middle position of the rocker; one end of the driving shaft extends from the other base and is fixedly connected to the driving wheel, and the rocker and the driving wheel are respectively located on opposite sides; a driven wheel is fixedly connected to the side of the driven shaft opposite to the driving wheel; the rocker and the steering wheel are rotatably connected through a connecting rod mechanism; The first transmission device comprises a first transmission gear fixedly mounted on the power shaft and a second transmission gear fixedly mounted on the crankshaft and meshing with the first transmission gear; the second transmission device comprises a third transmission gear fixedly mounted on the crankshaft and a fourth transmission gear fixedly mounted on the driving shaft and meshing with the third transmission gear, and the diameters of the first transmission gear and the third transmission gear are respectively larger than the diameters of the second transmission gear and the fourth transmission gear; The side plate includes a first protruding portion and a second protruding portion, the first protruding portion is opposite to the mainspring roll on the power shaft and is fixedly connected to the first end of the mainspring roll, and the second protruding portion is a convex plate, which is spaced a certain distance from and parallel to the base on which the side plate is installed.

2. The clockwork trolley with variable trajectory according to claim 1, characterized in that: It also includes a speed limiting device, which includes a ring, a disc and two flying balls. The ring is fixedly mounted on the first end of the crank shaft, and the disc is rotatably sleeved on the second end of the crank shaft. The ring and the disc are fixedly connected by two thin ropes, and a flying ball is respectively sleeved on the two thin ropes. The ring is located between the convex plate and the base.

3. The clockwork trolley with a variable trajectory according to any one of claims 1 to 2, characterized in that: It also includes a box cover, and two ends of the box cover are respectively fixedly connected to the top ends of the two bases.

4. The clockwork trolley with a variable trajectory according to claim 1, characterized in that: The power shaft is provided with a plurality of triangular protrusions evenly spaced along the circumferential direction, and the first transmission gear is provided with a plurality of bumps cooperating with the triangular protrusions, each of the bumps is inserted between two adjacent triangular protrusions, when the power shaft rotates forward, the bumps slide over the back side of the triangular protrusions, when the power shaft rotates reversely, the triangular protrusions press against the bumps, and the first transmission gear follows the rotation.

5. The clockwork trolley with variable trajectory according to claim 1, characterized in that: The height of the front end of the frame is higher than that of the rear end of the frame. One steering wheel is provided and installed at the middle position of the front end of the frame. The steering wheel is installed on a steering wheel mounting frame through a wheel axle. The steering wheel mounting frame is located at the bottom of the front end of the frame. The steering wheel mounting frame is rotatably connected to the front end of the frame through a rotating shaft.

6. The clockwork trolley with a variable trajectory according to claim 5, characterized in that: The connecting rod mechanism includes a first connecting rod and a second connecting rod; one end of the rocker arm is connected to the first connecting rod through a first universal joint, the first connecting rod and the second connecting rod are connected through a second universal joint, the second connecting rod is fixedly connected to the top end of the rotating shaft, the rotating shaft vertically passes through the front end of the frame and is rotatably connected to the frame, and the bottom of the rotating shaft is fixedly connected to the steering wheel fixing frame and drives the steering wheel fixing frame to rotate.

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