Full-angle control device for child toy car

Abstract

The full-angle control device comprises a base, tires, a rotating shaft and a support, the base is arranged in the horizontal direction, the tires are arranged in the vertical direction and distributed at the four corners of the base in a central symmetry mode, the rotating shaft is arranged in the horizontal direction, and the two ends of the rotating shaft are connected with the tires respectively; one end of the support is fixedly connected with one side of the base away from the steering wheel, and the other end of the support is connected with the rotating shaft through a bearing. The full-angle control device comprises a control mechanism, an angle control mechanism, a driving motor and a transmission mechanism, one end of the control mechanism penetrates out of the base and extends upwards, the other end of the control mechanism is connected with the angle control mechanism, and the end, away from the control mechanism, of the angle control mechanism is connected with the tires; the driving motor is arranged on the rotating shaft in a penetrating mode, the acting end of the driving motor is fixedly connected with the rotating shaft, and the two ends of the transmission mechanism are connected with the rotating shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of children's toy cars, and specifically to a full-angle control device for children's toy cars. Background Technique

[0002] Children's toy cars can be used to exercise children's bodies and also to improve their intelligence. There are various children's toy cars on the market, such as twister cars, scooters, children's tricycles, children's quadricycles, etc. Among them, the structural composition of children's quadricycles is basically similar to that of cars, with flexible size design, simple materials, and slightly rough workmanship. Existing children's toy cars can be driven forward by electricity or pushed forward by adults, and the forward direction is controlled by children operating the steering wheel. However, there are still steering problems. For example, in a narrow space, the experience is not good because parallel movement cannot be achieved. In addition, in order to protect the safety of children driving, the authenticity experience of existing children's toy cars has seriously declined, greatly reducing the attraction to children.

[0003] The present invention provides a full-angle control device for children's toy cars, adding two directions of left or right translation to the existing forward direction of children's toy cars, improving the driving experience of children while exercising and improving children's operation ability and memory; in addition, while ensuring the maximum safety protection for children, the authenticity of children's experience is enhanced, increasing the attraction of children's toy cars to children. Summary of the Invention

[0004] The purpose of the present invention is to provide a full-angle control device for children's toy cars to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: A full-angle control device for a children's toy car, comprising a base, tires, a rotating shaft, and a bracket. The base is arranged horizontally, the tires are arranged vertically and symmetrically centered at the four corners of the base, and the rotating shaft is arranged horizontally with both ends thereof respectively connected to the tires. One end of the bracket is fixedly connected to the side of the base away from the steering wheel, and the other end of the bracket is connected to the rotating shaft by a bearing. The full-angle control device includes a control mechanism, an angle control mechanism, a driving motor, and a transmission mechanism. One end of the control mechanism passes through the base and extends upward, and the other end of the control mechanism is connected to the angle control mechanism. The purpose of setting the control mechanism is to facilitate children to operate and control the direction under electric drive, improving the driving experience of children. The end of the angle control mechanism away from the control mechanism is connected to the tire, and the purpose of setting it is to achieve multi-directional angle control, adding two directions of left or right translation to the existing forward direction, exercising and improving children's operation ability and memory. The driving motor is sleeved on the rotating shaft, and the acting end of the driving motor is fixedly connected to the rotating shaft. Both ends of the transmission mechanism are respectively connected to the rotating shaft, and the purpose of setting it is to synchronously achieve multi-steering movements under the action of the control mechanism, greatly enhancing the authenticity of the children's toy car.

[0006] Further, the control mechanism includes a steering wheel, a coupling shaft, a control rod, a driving wheel, and a control rack. The steering wheel is located above the base, one end of the coupling shaft is connected to the steering wheel, and the other end of the coupling shaft passes through the base and extends to be movably connected to the control rod. A driving wheel is fixedly installed at the end of the control rod away from the base, and the control rack is located on one side of the driving wheel and meshed with the driving wheel.

[0007] Further, the tire includes a tire body, a turntable, a support rod, a rhombic wheel, a rolling wheel, a roller frame, and an eccentric roller. The turntable is arranged at the central axis position of the tire body and sleeved on the rotating shaft, the support rods are evenly arranged in a circle, one end of the support rod is connected to the outer wall of the turntable, and the other end of the support rod is connected to the side wall of the rhombic wheel. The rhombic wheel is symmetrically arranged along the vertical axis. The rolling wheels are evenly arranged in a circle inside the tire body, one end of the rolling wheel is meshed with the rhombic wheel, and a roller frame is fixedly installed at the other end of the rolling wheel. An eccentric roller is rotatably sleeved at the end of the roller frame away from the rolling wheel. The purposes of setting it are: one is to add a real experience during children's driving by using its eccentric action trajectory while ensuring the maximum safety of children; the other is to be a key basic component for achieving multi-directional steering.

[0008] Furthermore, the angle control mechanism includes an actuator, one end of which is inserted into the tire body, and the other end of which extends to the inside of the base. The purpose of the actuator is to link the control mechanism with the tire, so as to achieve multiple directional steering of the children's toy car without deflecting the tire as a whole, thereby minimizing the possibility of rollover and effectively improving the driving safety of children. The actuator includes a telescopic rod, an elastic spring, a rotating drum and a push plate. The telescopic rod is arranged in the horizontal direction inside the base, the elastic spring is inserted into the telescopic rod, and the rotating drum is inserted into the bevel wheel and connected to the bevel wheel in a threaded form. The push plate is arranged parallel to the tire body, one end of the push plate is fixedly connected to the outer wall of the rotating drum, the other end of the push plate is fixedly connected to the end of the telescopic rod away from the base, and the side of the push plate away from the tire body is connected to the control rack.

[0009] Furthermore, the angle control mechanism also includes a linkage component, which is set to realize the conversion of tires on the same side as a group or the conversion of tires in symmetrical positions as a group under the action of the control mechanism, so as to realize multi-directional steering. The linkage component includes a first screw rod, a second screw rod, a fixed plate, a first sleeve, a second sleeve, a linkage rod, a linkage wheel and a linkage belt. The first screw rod is symmetrically arranged on the side of the push plate away from the tire body at an inclined angle and with the second screw rod. The first screw rod is located directly below the second screw rod, and the two ends of the first screw rod and the second screw rod are respectively connected to the bottom end of the base through the fixed plate. One end of the first sleeve is inserted into the first screw rod and connected to the first screw rod in a threaded form, and the other end of the first sleeve is connected to the control rack. One end of the second sleeve is inserted into the second screw rod and connected to the second screw rod in a threaded form, and the other end of the second sleeve is connected to the linkage rod. The linkage wheel is connected to the fixed plate and connected to the first screw rod by a linkage belt transmission, and the linkage wheel is meshed and connected with the second screw rod.

[0010] Furthermore, the push plate is symmetrically provided with oblique grooves, which are intended to guide the relative motion trajectory of the control rack and the linkage rod and the push plate, thereby achieving the purpose. The push plate is provided with a plurality of triangular teeth on the inner wall of the oblique groove, and both ends of the control rack and the linkage rod are transferred to limit wheels, and the teeth of the limit wheels are arranged correspondingly to the triangular teeth, which are intended to limit the relative position of the control rack and the linkage rod and the push plate, ensure the overall stability of the angle control mechanism, and on this basis improve the protection of children.

[0011] Further, the transmission mechanism includes a driving assembly, and both ends of the driving assembly are respectively connected to the rotating shafts. The driving assembly is provided to drive the rotating shafts to move under the action of the driving motor and achieve the transmission between the rotating shafts, so as to provide the driving force for the children's toy car. The driving assembly includes a first driving wheel, a second driving wheel, a driving belt, a limiting plate, a guide rail, a transmission wheel and a conversion wheel. The first driving wheel is sleeved on the rotating shaft where the driving motor is located, and the first driving wheel and the transmission wheel are connected by the driving belt for transmission. The second driving wheel is sleeved on the rotating shaft away from the driving motor. The limiting plate is fixedly arranged at the bottom end of the base, the guide rail is slidably connected with the limiting plate, the transmission wheel is rotatably connected to the guide rail, the transmission wheel is meshed with the conversion wheel, and the conversion wheel is meshed with the second driving wheel.

[0012] Further, the transmission mechanism further includes a control assembly, one end of the control assembly is connected to the coupling shaft, and the other end of the control assembly is connected to the driving assembly. The control assembly is provided to achieve the linkage effect when a child acts on the control mechanism, so as to achieve the effect of controlling the children's toy car at all angles. The control assembly includes a connecting rod, a transmission rack, a control wheel, a control screw rod and a cross bar. The connecting rod is arranged parallel to the tire body, one end of the connecting rod is connected to the control rod, and a transmission rack is vertically and fixedly installed at the other end of the connecting rod. The transmission rack is located on one side of the control wheel and is meshed with the control wheel. The control wheel and the conversion wheel are respectively sleeved on both ends of the control screw rod. One end of the cross bar is respectively connected to one end of the control screw rod, and the other end of the cross bar is respectively connected to the guide rail and the limiting plate.

[0013] Further, the transmission mechanism further includes a tensioning assembly, and the tensioning assembly is fixed on the base. The tensioning assembly is provided to always ensure the tension degree of the transmission mechanism, so as to achieve the transmission effect. The tensioning assembly includes a slide rail, a slider, a tensioning wheel, a chassis, a limiting rod and a compression spring. The slide rail is fixed on the base, and the slider is slidably connected with the slide rail. The tensioning wheel is rotatably connected to the side of the slider away from the slide rail, and the chassis is fixed at the lower end of the slide rail. The limiting rod is arranged in the vertical direction, one end of the limiting rod is connected to the slider, the other end of the limiting rod passes through the chassis and extends downward, and the compression spring is sleeved on the limiting rod and is located above the chassis.

[0014] Further, taking the eccentric roller in the upper left position as a reference, the included angle between its plane projection and the horizontal axis is set as α. When the children's toy car goes straight forward or backward, α is in the range of 0° to 90° (excluding 0°). The eccentric rollers in the lower left position and the upper left position are arranged in the same direction. The eccentric rollers in the upper right position and the lower right position are symmetrically arranged with respect to the vertical axis with the eccentric rollers in the upper left position and the lower left position. When the children's toy car turns left and α is in the range of 0° to 90° (excluding 0° and 90°), the eccentric rollers in the lower left position, the upper right position and the lower right position are arranged in the same direction as the eccentric roller in the upper left position. When the children's toy car turns right and α is in the range of 90° to 180° (excluding 90° and 180°), the eccentric rollers in the lower left position, the upper right position and the lower right position are arranged in the same direction as the eccentric roller in the upper left position. When the children's toy car moves leftward and α is in the range of 0° to 90° (excluding 90°), the eccentric rollers in the lower left position and the upper left position are symmetrically arranged with respect to the horizontal axis, the eccentric roller in the upper right position is arranged in the same direction as the eccentric roller in the upper left position, and the eccentric roller in the lower right position is arranged in the same direction as the eccentric roller in the lower left position. When the children's toy car moves rightward and α is in the range of 90° to 180° (excluding 90°), the eccentric rollers in the lower left position and the upper left position are symmetrically arranged with respect to the horizontal axis, the eccentric roller in the upper right position is arranged in the same direction as the eccentric roller in the upper left position, and the eccentric roller in the lower right position is arranged in the same direction as the eccentric roller in the lower left position.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The all-angle control device for children's toy cars of the present invention 1. The purpose of setting the control mechanism is to facilitate children to operate and control the direction under the condition of electric drive, improving the driving experience of children.

[0016] 2. The purpose of setting the angle control mechanism is to achieve multi-directional angle control without the overall deflection of the tires. Two directions of left or right translation are added to the existing traveling direction, minimizing the possibility of tipping over to the greatest extent, effectively improving the driving safety of children, and at the same time exercising and improving the operation ability and memory of children.

[0017] 3. The purpose of setting the transmission mechanism is to synchronously achieve multi-steering movements under the action of the control mechanism, greatly enhancing the authenticity of children's toy cars. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is the overall front view structural schematic diagram of the all-angle control device for children's toy cars of the present invention; Figure 2 is the overall bottom view structural schematic diagram of the all-angle control device for children's toy cars of the present invention; Figure 3It is a schematic structural diagram of the tire of the full-angle control device for a children's toy car according to the present invention; Figure 4 It is a schematic side sectional structural diagram of the tire of the full-angle control device for a children's toy car according to the present invention; Figure 5 It is a schematic structural diagram of the linkage assembly of the full-angle control device for a children's toy car according to the present invention; Figure 6 It is a schematic structural diagram of the transmission mechanism of the full-angle control device for a children's toy car according to the present invention; Figure 7 It is a schematic structural diagram of the tensioning assembly of the full-angle control device for a children's toy car according to the present invention; Figure 8 It is a schematic projection diagram of the eccentric roller during the forward or backward driving of the children's toy car according to the present invention; Figure 9 It is a schematic projection diagram of the eccentric roller during the left-turn driving of the children's toy car according to the present invention; Figure 10 It is a schematic projection diagram of the eccentric roller during the right-turn driving of the children's toy car according to the present invention; Figure 11 It is a schematic projection diagram of the eccentric roller during the leftward translation driving of the children's toy car according to the present invention; Figure 12 It is a schematic projection diagram of the eccentric roller during the rightward translation driving of the children's toy car according to the present invention; In the figure: 1. Base; 2. Tire, 21. Tire body, 22. Turntable, 23. Support rod, 24. Rhomboid wheel, 25. Rolling wheel, 26. Roller frame, 27. Eccentric roller; 3. Rotating shaft; 4. Bracket; 5. Control mechanism, 51. Steering wheel, 52. Coupling shaft, 53. Control rod, 54. Driving wheel, 55. Control rack, 56. Limiting wheel; 6. Angle control mechanism; 7. Driving motor; 8. Transmission mechanism; 91. Telescopic rod, 92. Elastic spring, 93. Rotating cylinder, 94. Pushing plate, 941. Oblique slot, 942. Triangular tooth; 101. First lead screw, 102. Second lead screw, 103. Fixed plate, 104. First sleeve, 105. Second sleeve, 106. Linking rod, 107. Linking wheel, 108. Linking belt; 111. First driving wheel, 112. Second driving wheel, 113. Driving belt, 114. Limiting plate, 115. Guide rail, 116. Driving wheel, 117. Conversion wheel; 121. Connecting rod, 122. Transmission rack, 123. Control wheel, 124. Control lead screw, 125. Cross bar; 131. Slide rail, 132. Slide block, 133. Tensioning wheel, 134. Base frame, 135. Limiting rod, 136. Compression spring. Detailed implementation manners

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-12 , the present invention provides a technical solution: a full-angle control device for a children's toy car, including a base 1, tires 2, a rotating shaft 3, and a bracket 4. The base 1 is arranged horizontally, the tires 2 are arranged vertically and symmetrically centered at the four corners of the base 1. The rotating shaft 3 is arranged horizontally, and both ends of the rotating shaft 3 are connected to the tires 2 respectively. One end of the bracket 4 is fixedly connected to the base 1, and the other end of the bracket 4 is connected to the rotating shaft 3 through a bearing. The full-angle control device further includes a control mechanism 5, an angle control mechanism 6, a driving motor 7, and a transmission mechanism 8. One end of the control mechanism 5 passes through the base 1 and extends upward, and the other end of the control mechanism 5 is connected to the angle control mechanism 6. The end of the angle control mechanism 6 away from the control mechanism 5 is connected to the tire 2. The driving motor 7 is disposed through the rotating shaft 3, and the acting end of the driving motor 7 is fixedly connected to the rotating shaft 3. Both ends of the transmission mechanism 8 are respectively connected to the rotating shaft 3.

[0021] The control mechanism 5 includes a steering wheel 51, a coupling shaft 52, a control rod 53, a driving wheel 54, and a control rack 55. The steering wheel 51 is located above the base 1. One end of the coupling shaft 52 is connected to the steering wheel 51, and the other end of the coupling shaft 52 passes through the base 1 and extends to be movably connected to the control rod 53. A driving wheel 54 is fixedly installed at the end of the control rod 53 away from the base 1. The control rack 55 is located on one side of the driving wheel 54 and is meshed with the driving wheel 54.

[0022] The tire 2 includes a tire body 21, a turntable 22, a support rod 23, a rhomboid wheel 24, a rolling wheel 25, a roller frame 26, and an eccentric roller 27. The turntable 22 is disposed at the central axis position of the tire body 21 and is disposed through the rotating shaft 3. The support rods 23 are uniformly arranged in a circle. One end of the support rod 23 is connected to the outer wall of the turntable 22, and the other end of the support rod 23 is connected to the side wall of the rhomboid wheel 24. The rhomboid wheel 24 is symmetrically arranged along the vertical axis. The rolling wheels 25 are uniformly arranged in a circle inside the tire body 21. One end of the rolling wheel 25 is meshed with the rhomboid wheel 24, and the other end of the rolling wheel 25 is fixedly installed with a roller frame 26. An eccentric roller 27 is rotatably disposed through the end of the roller frame 26 away from the rolling wheel 25.

[0023] The angle control mechanism 6 includes an actuating component. One end of the actuating component penetrates inside the tire body 21, and the other end of the actuating component extends into the base 1. The actuating component includes a telescopic rod 91, a resilient spring 92, a rotating cylinder 93, and a push plate 94. The telescopic rod 91 is horizontally arranged inside the base 1. The resilient spring 92 is sleeved on the telescopic rod 91. The rotating cylinder 93 penetrates through the rhomboid wheel 24 and is threadedly connected to the rhomboid wheel 24. The push plate 94 is arranged parallel to the tire body 21. One end of the push plate 94 is fixedly connected to the outer edge wall of the rotating cylinder 93, and the other end of the push plate 94 is fixedly connected to the end of the telescopic rod 91 away from the base 1. The side of the push plate 94 away from the tire body 21 is connected to the control rack 55.

[0024] The angle control mechanism 6 further includes a linkage component. The linkage component includes a first lead screw 101, a second lead screw 102, a fixing plate 103, a first sleeve 104, a second sleeve 105, a linkage rod 106, a linkage wheel 107, and a linkage belt 108. The first lead screw 101 is arranged at an inclined angle and symmetrically with the second lead screw 102 on the side of the push plate 94 away from the tire body 21. The first lead screw 101 is located directly below the second lead screw 102. The two ends of the first lead screw 101 and the second lead screw 102 are respectively connected to the base 1 through the fixing plate 103. One end of the first sleeve 104 penetrates through the first lead screw 101 and is threadedly connected to the first lead screw 101. The other end of the first sleeve 104 is connected to the control rack 55. One end of the second sleeve 105 penetrates through the second lead screw 102 and is threadedly connected to the second lead screw 102. The other end of the second sleeve 105 is connected to the linkage rod 106. The linkage wheel 107 is rotatably connected to the fixing plate 103 and is drivingly connected to the first lead screw 101 through the linkage belt 108. The linkage wheel 107 is meshed and connected to the second lead screw 102.

[0025] The push plate 94 is symmetrically provided with inclined strip grooves 941. A number of triangular teeth 942 are provided on the inner edge wall of the push plate 94 at the inclined strip grooves 941. The two ends of the control rack 55 and the linkage rod 106 are respectively rotatably connected with limit wheels 56. The teeth of the limit wheels 56 are correspondingly arranged with the triangular teeth 942.

[0026] The transmission mechanism 8 includes a driving assembly, both ends of which are respectively connected to the rotating shaft 3. The driving assembly includes a first driving wheel 111, a second driving wheel 112, a driving belt 113, a limiting plate 114, a guide rail 115, a transmission wheel 116 and a conversion wheel 117. The first driving wheel 111 is penetrated on the rotating shaft 3 where the driving motor 7 is located, the first driving wheel 111 and the transmission wheel 116 are connected by the driving belt 113, the second driving wheel 112 is penetrated on the rotating shaft 3 away from the driving motor 7, the limiting plate 114 is fixedly arranged at the bottom end of the base 1, the guide rail 115 is slidably connected to the limiting plate 114, the transmission wheel 116 is connected to the guide rail 115, the transmission wheel 116 is meshed with the conversion wheel 117, and the conversion wheel 117 is meshed with the second driving wheel 112.

[0027] The transmission mechanism 8 also includes a control component, one end of which is connected to the connecting shaft 52, and the other end of which is connected to the driving component. The control component includes a connecting rod 121, a transmission rack 122, a control wheel 123, a control screw 124 and a cross bar 125. The connecting rod 121 is arranged parallel to the tire body, one end of the connecting rod 121 is connected to the control rod 53, and the other end of the connecting rod 121 is vertically and fixedly installed with a transmission rack 122, the transmission rack 122 is located on one side of the control wheel 123 and is meshed with the control wheel 123, the control wheel 123 and the conversion wheel 117 are respectively penetrated at both ends of the control screw 124, one end of the cross bar 125 is respectively connected to one end of the control screw 124, and the other end of the cross bar 125 is respectively connected to the guide rail 115 and the limit plate 114.

[0028] The transmission mechanism 8 also includes a tensioning assembly, which is fixed on the base 1. The tensioning assembly includes a slide rail 131, a slider 132, a tensioning wheel 133, a base frame 134, a limit rod 135 and a compression spring 136. The slide rail 131 is fixed on the base 1, the slider 132 is slidably connected to the slide rail 131, the tensioning wheel 133 is transferred to the side of the slider 132 away from the slide rail 131, the base frame 134 is fixed to the lower end of the slide rail 131, the limit rod 135 is arranged in a vertical direction, one end of the limit rod 135 is connected to the slider 132, and the other end of the limit rod 135 passes through the base frame 134 and extends downward, and the compression spring 136 is penetrated by the limit rod 135 and is located above the base frame 134.

[0029] Taking the upper left eccentric roller 27 as a reference and setting the angle between its plane projection and the horizontal axis as α, the α ranges from 0° to 90° (excluding 0°) when the children's toy car goes straight forward or backward. The lower left eccentric roller is arranged in the same direction as the upper left eccentric roller 27. The upper right and lower right eccentric rollers are symmetrically arranged with the upper left and lower left eccentric rollers 27 along the vertical axis. When the children's toy car turns left and the α ranges from 0° to 90° (excluding 0° and 90°), the lower left, upper right and lower right eccentric rollers are arranged in the same direction as the upper left eccentric roller 27. When the children's toy car turns right and the α ranges from 90° to 180° (excluding 90° and 180°), the lower left, upper right and lower right eccentric rollers are arranged in the same direction as the upper left eccentric roller 27. When the children's toy car moves leftward and the α ranges from 0° to 90° (excluding 90°), the lower left eccentric roller is symmetrically arranged with the upper left eccentric roller 27 along the horizontal axis. The upper right eccentric roller is arranged in the same direction as the upper left eccentric roller 27. The lower right eccentric roller is arranged in the same direction as the lower left eccentric roller 27. When the children's toy car moves rightward and the α ranges from 90° to 180° (excluding 90°), the lower left eccentric roller is symmetrically arranged with the upper left eccentric roller 27 along the horizontal axis. The upper right eccentric roller is arranged in the same direction as the upper left eccentric roller 27. The lower right eccentric roller is arranged in the same direction as the lower left eccentric roller 27.

[0030] Working principle of the present invention: 1. Connect the power supply. The driving motor 7 drives the coaxial rotating shaft 3 and two of the tires 2 to perform circumferential motion. The rotating shaft 3 follows the movement of the first driving wheel 111. The first driving wheel 111 drives the transmission wheel 116 to move through the driving belt 113. The transmission wheel 116 and the conversion wheel 117 perform meshing relative motion. The conversion wheel 117 and the second driving wheel 112 perform meshing relative motion. The second driving wheel 112 drives the rotating shaft 3 far from the driving motor 7 to move. The rotating shaft 3 drives the other two tires 2 to perform circumferential motion, thereby giving the children's toy car a driving force for movement. In the initial state, α ranges from 0° to 90° (excluding 0°). The lower left eccentric roller is in the same direction as the upper left eccentric roller 27. The upper right and lower right eccentric rollers are symmetrically arranged with the upper left and lower left eccentric rollers 27 along the vertical axis. At this time, the left and right vectors of the eccentric roller 27 cancel each other out, and only the forward vector remains. Therefore, the children's toy car moves straight forward. 2. Press the reverse key of the driving motor 7 to make the driving motor 7 drive the coaxial rotating shaft 3 and two of the tires 2 to perform reverse circumferential motion. Other operations are the same as in item 1 (the acting directions are all opposite), that is, the other two tires 2 move in the opposite direction at the same time, thereby giving the children's toy car a driving force for movement. At this time, α is in the range of 0° to 90° (excluding 0°). The eccentric rollers 27 at the lower left and upper left positions rotate in the same direction. The eccentric rollers 27 at the upper right and lower right positions are vertically axially symmetric with those at the upper left and lower left positions. At this time, the left and right vectors of the eccentric rollers 27 cancel each other out, leaving only the backward vector. Therefore, the children's toy car moves straight backward; 3. When the child turns the steering wheel 51 to the left, the steering wheel 51 drives the control rod 53 to turn through the coupling shaft 52. The control rod 53 drives the driving wheel 54 to rotate. The driving wheel 54 and the control rack 55 move relative to each other in a meshing manner. The control rack 55 drives the push plate 94 to generate a horizontal displacement. As a result, the telescopic rod 91 and the elastic spring 92 undergo adaptive morphological changes. The push plate 94 drives the rotating cylinder 93 to move in a horizontal straight line. The rhombic wheel 24 and the rotating cylinder 93 generate relative motion and undergo circumferential motion. The rolling wheel 25 and the rhombic wheel 24 move relative to each other in a meshing manner. The rolling wheel 25 drives the roller frame 26 and the eccentric roller 27 to deflect at an angle, and the total vector of the eccentric rollers 27 on the four tires 2 deflects; At this time, α is in the range of 0° to 90° (excluding 0° and 90°), and the eccentric rollers 27 at the lower left, upper right, and lower right positions rotate in the same direction as those at the upper left position. There are vectors to the left and forward. Therefore, the children's toy car moves in a leftward deflection; 4. When the child turns the steering wheel 51 to the right, the steering wheel 51 drives the control rod 53 to turn in the opposite direction through the coupling shaft 52. Other actions are the same as in item 3 (the acting directions are all opposite). The rolling wheel 25 drives the roller frame 26 and the eccentric roller 27 to deflect at an angle, and the total vector of the eccentric rollers 27 on the four tires 2 deflects; At this time, α is in the range of 90° to 180° (excluding 90° and 180°), and the eccentric rollers 27 at the lower left, upper right, and lower right positions rotate in the same direction as those at the upper left position. There are vectors to the right and forward. Therefore, the children's toy car moves in a rightward deflection; 5. When the child pushes the steering wheel 51 downward, the steering wheel 51 drives the coupling shaft 52 and the control rod 53 to generate a downward displacement. While the control rod 53 moves downward, it drives the transmission rack 122 to move through the connecting rod 121. The transmission rack 122 and the control wheel 123 move relative to each other in a meshing manner. The control screw rod 124 and the control wheel 123 move relative to each other and generate a displacement away from the transmission wheel 116. At the same time, it drives the conversion wheel 117 and the cross bar 125 to generate a horizontal displacement. The cross bar 125 exerts a pulling force on the guide rail 115, causing the guide rail 115 to drive the transmission wheel 116 to slide along the bottom frame 134 until the transmission wheel 116 meshes with the second driving wheel 112. At this time, the rotation directions of the rotating shafts 3 of the two sets of tires 2 on the same rotating shaft 3 are opposite to those of the other set; Meanwhile, the pressure of the drive belt 113 on the tensioning pulley 133 becomes smaller. The compression spring 136 makes a reset movement due to its elastic characteristics, causing a relative displacement between the limit rod 135 and the chassis 134. The slider 132 slides relatively on the slide rail 131 to maintain the tensioned state of the drive belt 113. The control rod 53 drives the driving wheel 54 and the control rack 55 to move downward. The limit wheel 56 engages with the triangular teeth 942 inside the inclined slot 941, causing the push plate 94 to move along the trajectory of the inclined slot 941. Meanwhile, the control rack 55 drives the first sleeve 104 to move relatively on the first lead screw 101, causing the first lead screw 101 to make a circumferential movement. The first lead screw 101 drives the linkage wheel 107 to move through the linkage belt 108. The linkage wheel 107 engages with the second lead screw 102, causing the second sleeve 105 to drive the linkage rod 106 to move along the inclined slot 941 in the opposite direction to the control rack 55. At this time, the acting positions of the push plate 94 and the linkage rod 106 are both centrosymmetric. When the child turns the steering wheel 51 to the left, the steering wheel 51 drives the control rod 53 to turn through the coupling shaft 52. The control rod 53 drives the driving wheel 54 to make a rotational movement. The driving wheel 54 engages with the control rack 55 to make a relative meshing movement. The control rack 55 and the linkage rod 106 respectively apply thrusts to the push plate 94 at the centrosymmetric positions. The overall inclination angle of the push plate 94 changes, that is, it applies thrusts to the upper right and lower left drums 93. The telescopic rod 91 and the elastic spring 92 thus undergo adaptive morphological changes. The push plate 94 drives the drum 93 to make a horizontal linear movement. The rhombic wheel 24 makes a relative movement with the drum 93 and undergoes a circumferential movement. The rolling wheel 25 engages with the rhombic wheel 24 relatively, and the rolling wheel 24 drives the roller frame 26 and the eccentric roller 27 to deflect at an angle. The total vector of the eccentric rollers 27 on the four tires 2 deflects. When α is in the range of 0° to 90° (excluding 90°), the eccentric rollers 27 at the lower left and upper left are axially symmetric horizontally. The eccentric rollers 27 at the upper right and upper left are in the same direction, and the eccentric rollers 27 at the lower right and lower left are in the same direction. At this time, the forward and backward vectors of the eccentric rollers 27 cancel each other out, leaving only the leftward vector. Therefore, the children's toy car moves leftward in a translational motion. 6. The child pushes the steering wheel 51 downward and turns the steering wheel 51 to the right. The actions are the same as in item 5 (but the acting directions are all opposite). At this time, the push plate 94 applies thrusts to the upper left and lower right drums 94. The total vector of the eccentric rollers 27 on the four tires 2 deflects. When α is in the range of 90° to 180° (excluding 90°), the eccentric rollers 27 at the lower left and upper left are axially symmetric horizontally. The eccentric rollers 27 at the upper right and upper left are in the same direction, and the eccentric rollers 27 at the lower right and lower left are in the same direction. At this time, the forward and backward vectors of the eccentric rollers 27 cancel each other out, leaving only the rightward vector. Therefore, the children's toy car moves rightward in a translational motion.

[0031] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0032] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An all-angle control device for a children's toy car, characterized in that: It includes a base (1), tires (2), a rotating shaft (3) and a bracket (4). The base (1) is arranged horizontally. The tires (2) are arranged vertically and symmetrically centered at the four corners of the base (1). The rotating shaft (3) is arranged horizontally, and both ends of the rotating shaft (3) are connected to the tires (2) respectively. One end of the bracket (4) is fixedly connected to the base (1), and the other end of the bracket (4) is connected to the rotating shaft (3) by a bearing. The full-angle control device includes a control mechanism (5), an angle control mechanism (6), a driving motor (7) and a transmission mechanism (8). One end of the control mechanism (5) passes through the base (1) and extends upward, and the other end of the control mechanism (5) is connected to the angle control mechanism (6). The end of the angle control mechanism (6) away from the control mechanism (5) is connected to the tire (2). The driving motor (7) is sleeved on the rotating shaft (3), and the acting end of the driving motor (7) is fixedly connected to the rotating shaft (3). Both ends of the transmission mechanism (8) are connected to the rotating shaft (3) respectively.

2. The all-angle control device for a children's toy car according to claim 1, characterized in that: The control mechanism (5) includes a steering wheel (51), a connecting shaft (52), a control rod (53), a driving wheel (54) and a control rack (55). The steering wheel (51) is located above the base (1). One end of the connecting shaft (52) is connected to the steering wheel (51), and the other end of the connecting shaft (52) passes through the base (1) and extends to be movably connected to the control rod (53). A driving wheel (54) is fixedly installed at the end of the control rod (53) away from the base (1). The control rack (55) is located on one side of the driving wheel (54) and meshes with the driving wheel (54).

3. The all-angle control device for a children's toy car according to claim 2, characterized in that: The tire (2) includes a tire body (21), a turntable (22), a support rod (23), a rhomboid wheel (24), a rolling wheel (25), a roller frame (26) and an eccentric roller (27). The turntable (22) is arranged at the central axis position of the tire body (21) and is sleeved on the rotating shaft (3). The support rods (23) are arranged evenly in a circle. One end of the support rod (23) is connected to the outer wall of the turntable (22), and the other end of the support rod (23) is connected to the side wall of the rhomboid wheel (24). The rhomboid wheel (24) is symmetrically arranged along the vertical axis. The rolling wheels (25) are arranged evenly in a circle inside the tire body (21). One end of the rolling wheel (25) meshes with the rhomboid wheel (24), and a roller frame (26) is fixedly installed at the other end of the rolling wheel (25). An eccentric roller (27) is rotatably sleeved at the end of the roller frame (26) away from the rolling wheel (25).

4. The all-angle control device for a children's toy car according to claim 3, characterized in that: The angle control mechanism (6) includes an actuating component. One end of the actuating component penetrates inside the tire body (21), and the other end of the actuating component extends inside the base (1). The actuating component includes a telescopic rod (91), a resilient spring (92), a rotating cylinder (93), and a pushing plate (94). The telescopic rod (91) is horizontally arranged inside the base (1). The resilient spring (92) is sleeved on the telescopic rod (91). The rotating cylinder (93) penetrates the rhombic wheel (24) and is threadedly connected to the rhombic wheel (24). The pushing plate (94) is arranged parallel to the tire body (21). One end of the pushing plate (94) is fixedly connected to the outer edge wall of the rotating cylinder (93), and the other end of the pushing plate (94) is fixedly connected to the end of the telescopic rod (91) away from the base (1). The side of the pushing plate (94) away from the tire body (21) is connected to the control rack (55).

5. The full-angle control device for a children's toy car according to claim 4, characterized in that: The angle control mechanism (6) further includes a linkage component. The linkage component includes a first lead screw (101), a second lead screw (102), a fixing plate (103), a first sleeve (104), a second sleeve (105), a linkage rod (106), a linkage wheel (107), and a linkage belt (108). The first lead screw (101) is arranged at an inclined angle and symmetrically with the second lead screw (102) on the side of the pushing plate (94) away from the tire body (21). The first lead screw (101) is located directly below the second lead screw (102). Both ends of the first lead screw (101) and the second lead screw (102) are connected to the base (1) through the fixing plate (103). One end of the first sleeve (104) penetrates the first lead screw (101) and is threadedly connected to the first lead screw (101). The other end of the first sleeve (104) is connected to the control rack (55). One end of the second sleeve (105) penetrates the second lead screw (102) and is threadedly connected to the second lead screw (102). The other end of the second sleeve (105) is connected to the linkage rod (106). The linkage wheel (107) is rotatably connected to the fixing plate (103) and is drivingly connected to the first lead screw (101) through the linkage belt (108). The linkage wheel (107) is meshed with the second lead screw (102).

6. The all-angle control device for a children's toy car according to claim 5, characterized in that: The pushing plate (94) is symmetrically provided with inclined strip grooves (941). A plurality of triangular teeth (942) are provided on the inner edge wall of the pushing plate (94) located in the inclined strip grooves (941). Limited position wheels (56) are rotatably connected to both ends of the control rack (55) and the linkage rod (106). The teeth of the limited position wheels (56) are correspondingly arranged with the triangular teeth (942).

7. The all-angle control device for a children's toy car according to claim 2, characterized in that: The transmission mechanism (8) includes a driving assembly, both ends of the driving assembly are respectively connected to the rotating shaft (3), the driving assembly includes a first driving wheel (111), a second driving wheel (112), a driving belt (113), a limiting plate (114), a guide rail (115), a transmission wheel (116) and a conversion wheel (117). The first driving wheel (111) is sleeved on the rotating shaft (3) where the driving motor (7) is located. The first driving wheel (111) is drivingly connected to the transmission wheel (116) by the driving belt (113). The second driving wheel (112) is sleeved on the rotating shaft (3) far from the driving motor (7). The limiting plate (114) is fixedly arranged at the bottom end of the base (1). The guide rail (115) is slidably connected to the limiting plate (114). The transmission wheel (116) is rotatably connected to the guide rail (115). The transmission wheel (116) is meshed with the conversion wheel (117). The conversion wheel (117) is meshed with the second driving wheel (112).

8. The full-angle control device for a children's toy car according to claim 7, characterized in that: The transmission mechanism (8) further includes a control assembly. One end of the control assembly is connected to the coupling shaft (52), and the other end of the control assembly is connected to the driving assembly. The control assembly includes a connecting rod (121), a transmission rack (122), a control wheel (123), a control screw rod (124) and a cross bar (125). The connecting rod (121) is arranged parallel to the tire body. One end of the connecting rod (121) is connected to the control lever (53). The other end of the connecting rod (121) is vertically and fixedly installed with the transmission rack (122). The transmission rack (122) is located on one side of the control wheel (123) and is meshed with the control wheel (123). The control wheel (123) and the conversion wheel (117) are respectively sleeved on both ends of the control screw rod (124). The control wheel (123) is rotatably connected to the base (1). One end of the cross bar (125) is respectively connected to one end of the control screw rod (124), and the other end of the cross bar (125) is respectively connected to the guide rail (115) and the limiting plate (114).

9. The all-angle control device for a children's toy car according to claim 8, characterized in that: The transmission mechanism (8) further includes a tensioning assembly. The tensioning assembly is fixed on the base (1). The tensioning assembly includes a slide rail (131), a slider (132), a tensioning wheel (133), a chassis (134), a limiting rod (135) and a compression spring (136). The slide rail (131) is fixed on the base (1). The slider (132) is slidably connected to the slide rail (131). The tensioning wheel (133) is rotatably connected to the side of the slider (132) far from the slide rail (131). The chassis (134) is fixed at the lower end of the slide rail (131). The limiting rod (135) is arranged in the vertical direction. One end of the limiting rod (135) is connected to the slider (132), and the other end of the limiting rod (135) passes through the chassis (134) and extends downward. The compression spring (136) is sleeved on the limiting rod (135) and is located above the chassis (134).

10. The full-angle control device for a children's toy car according to claim 2, characterized in that: Taking the upper left eccentric roller (27) as a reference and setting the included angle between its planar projection and the horizontal axis as α, When the child's toy car is moving straight forward or backward and α is in the range of 0° to 90° (excluding 0°), the eccentric rollers (27) at the lower left position and the upper left position are arranged in the same direction, and the eccentric rollers (27) at the upper right position and the lower right position are symmetrically arranged with respect to the vertical axis with the eccentric rollers (27) at the upper left position and the lower left position; When the child's toy car is turning left and α is in the range of 0° to 90° (excluding 0° and 90°), the eccentric rollers (27) at the lower left position, the upper right position and the lower right position are arranged in the same direction as the eccentric roller (27) at the upper left position; When the child's toy car is turning right and α is in the range of 90° to 180° (excluding 90° and 180°), the eccentric rollers (27) at the lower left position, the upper right position and the lower right position are arranged in the same direction as the eccentric roller (27) at the upper left position; When the child's toy car is moving leftward and α is in the range of 0° to 90° (excluding 90°), the eccentric rollers (27) at the lower left position and the upper left position are symmetrically arranged with respect to the horizontal axis, the eccentric roller (27) at the upper right position is arranged in the same direction as the eccentric roller (27) at the upper left position, and the eccentric roller (27) at the lower right position is arranged in the same direction as the eccentric roller (27) at the lower left position; When the child's toy car is moving rightward and α is in the range of 90° to 180° (excluding 90°), the eccentric rollers (27) at the lower left position and the upper left position are symmetrically arranged with respect to the horizontal axis, the eccentric roller (27) at the upper right position is arranged in the same direction as the eccentric roller (27) at the upper left position, and the eccentric roller (27) at the lower right position is arranged in the same direction as the eccentric roller (27) at the lower left position.

Images