Car body lifting mechanism and toy car

Abstract

The utility model relates to a car body lifting mechanism and a toy car, the car body lifting mechanism comprises a lifting driving assembly and two rows of crawler wheels arranged on the outer side of the car body, each row of crawler wheels comprises at least two lifting wheels arranged on the inner side of the same crawler, the crawler is pressed on a supporting surface by the lifting wheels, and the lifting driving assembly is arranged in the car body. The lifting driving assembly comprises a lifting motor and a transmission rod, the lifting motor is fixed in the vehicle body, one end of the transmission rod is in transmission connection with a reduction gearbox at the driving end of the lifting motor, and the other end of the transmission rod is exposed out of the vehicle body and provided with a lifting swing arm connected with a wheel shaft of the lifting wheel. The lifting motor drives the lifting wheel to lift relative to the vehicle body through the transmission rod and the lifting swing arm so as to adjust the height of the vehicle body relative to the supporting surface. According to the tank toy car, large torsion is output to the lifting wheels through the lifting motor and the reduction gearbox to lift the car body, the height of the car body can be adjusted according to different road conditions, the trafficability of the tank toy car is improved, and the requirements of different users are met.

Description

Technical Field

[0001] The utility model relates to the technical field of toys, in particular to a vehicle body lifting mechanism and a toy vehicle. Background Art

[0002] A toy car is a toy for children to play with that is reduced in size according to the basic structure and appearance of a car. Different children or adults like different toy cars, such as cars, engineering vehicles, military vehicles, tanks, etc. Among tank toy cars, there are many tank toy cars with the appearance of tanks on the market, such as a tank toy car disclosed in the Chinese utility model application number CN202321101597.X. The tank toy car of this patent includes a body, and auxiliary wheels, support wheels and driving wheels are respectively arranged on both sides of the body. The auxiliary wheels, support wheels and driving wheels are connected through crawler transmission. Support plates are rotatably connected to the support wheels on both sides of the body through bearing seats. One end of the support plate is rotatably connected to the support wheel through the bearing seat, and the other end of the support plate is connected to a shock absorber spring, and one end of the shock absorber spring is connected to both sides of the body; the shock absorber spring is arranged between the body and the support wheel to improve the passability of the tank toy car to small pits or obstacles.

[0003] The passability of the tank toy car can be improved by using a shock-absorbing spring, but this is far from meeting the requirements of existing users. Therefore, it is necessary to optimize the structure of the existing tank toy car to further improve the passability of the tank car. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the utility model provides a vehicle body lifting mechanism and a toy car.

[0005] In the first aspect, the utility model provides a vehicle body lifting mechanism, including a lifting drive assembly and two rows of track wheels arranged on the outside of the vehicle body, each row of track wheels includes at least two lifting wheels arranged on the inner side of the same track, the lifting wheels press the track onto a supporting surface, the lifting drive assembly is arranged inside the vehicle body, the lifting drive assembly includes a lifting motor and a transmission rod, the lifting motor is fixed inside the vehicle body, one end of the transmission rod is transmission-connected to the reduction gearbox at the driving end of the lifting motor, the other end of the transmission rod is exposed outside the vehicle body, and a lifting swing arm connected to the wheel axle of the lifting wheel is provided, the lifting motor drives the lifting wheel to rise and fall relative to the vehicle body through the transmission rod and the lifting swing arm to adjust the height of the vehicle body relative to the supporting surface.

[0006] In some embodiments, a limiting sleeve is provided in the vehicle body, the transmission rod is inserted into the limiting sleeve, a first fixing plate is provided on the outer side of the limiting sleeve, and the first fixing plate is fixed to the vehicle body by bolts.

[0007] In some embodiments, the limiting sleeve is provided with a limiting groove, the transmission rod is provided with a limiting block, the limiting block is arranged in the limiting groove and rotates with the transmission rod, and the limiting sleeve controls the rotation angle of the transmission rod and the lifting swing arm through the cooperation of the limiting groove and the limiting block.

[0008] In some embodiments, the lifting motor and the transmission rod are distributed inside the vehicle body in a perpendicular manner via a reduction gearbox.

[0009] In some embodiments, each row of track wheels also includes a tensioning wheel, the wheel axle of the tensioning wheel is connected to a first connecting rod and a second connecting rod, the first connecting rod is pivotally connected to a connecting rod extending from an upgrade swing arm, the second connecting rod is pivotally connected to a rotation point on the outer wall of the vehicle body, and the lifting motor drives the tensioning wheel to rotate around the rotation point through the lifting swing arm, the connecting rod and the first connecting rod to adjust the tension of the track.

[0010] In some of the embodiments, each row of track wheels also includes a plurality of support wheels, a plurality of connecting shafts are arranged on the inner side of the vehicle body, the connecting shaft is provided with a support swing arm connected to the wheel axle of the support wheel, the connecting shaft is provided with a mounting sleeve fixed to the vehicle body, a torsion spring is arranged between the connecting shaft and the mounting sleeve, and the elastic force of the torsion spring is converted into pressure through the connecting shaft and the support swing arm to drive the support wheel to press the track toward the support surface.

[0011] In some embodiments, a second fixing plate is provided on the outside of the mounting sleeve, the second fixing plate is fixed to the vehicle body by bolts, a connecting step is provided on the inner wall of the mounting sleeve, a slot is provided along the axis of the connecting shaft, and the two ends of the torsion spring are respectively clamped in the connecting step and the slot.

[0012] In some embodiments, a convex edge is provided at the end of the connecting shaft, and a blocking piece engaged with the convex edge is provided on the outer side of the mounting sleeve.

[0013] In some embodiments, a sliding sleeve is provided between the connecting shaft and the mounting sleeve, the inner wall of the sliding sleeve is slidably connected to the outer wall of the connecting shaft, and the outer wall of the sliding sleeve is clamped and fixed to the inner wall of the shaft hole of the mounting sleeve.

[0014] In a second aspect, the utility model further provides a toy car, comprising the vehicle body lifting mechanism described in the first aspect.

[0015] Compared with the prior art, the utility model has the following beneficial effects: four lifting wheels are driven to lift relative to the vehicle body by four sets of lifting drive components, and the vehicle body is lifted and lowered synchronously at four positions to ensure that the vehicle body can stably adjust its height; the lifting motor cooperates with the reduction gear box to reduce the speed and increase the torque, so that the lifting motor and the reduction gear box can output a larger torque to lift the vehicle body; the vehicle body lifting mechanism can adjust the height of the vehicle body according to different road conditions, thereby improving the passability of the tank toy car to meet the needs of different users. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side structural schematic diagram of the vehicle body lifting mechanism and the vehicle body of an embodiment of the present application.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the vehicle body lifting mechanism and the vehicle body according to an embodiment of the present application.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the lifting drive assembly and the lifting wheel of an embodiment of the present application.

[0019] Figure 4 It is a schematic diagram of the exploded structure of the lifting drive assembly and the lifting wheel of an embodiment of the present application.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the lifting drive assembly, the lifting wheel and the tensioning wheel of an embodiment of the present application.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the support wheel of an embodiment of the present application.

[0022] Figure 7 It is a schematic diagram of the exploded structure of the support wheel of an embodiment of the present application.

[0023] Reference numerals: 1, vehicle body; 11, crawler track;

[0024] 2. Lifting wheel;

[0025] 3. Lifting drive assembly; 31. Lifting motor; 32. Speed ​​reducer; 33. Transmission rod; 34. Lifting swing arm; 341. Limit block; 342. Connecting rod; 35. Limiting sleeve; 36. First fixing plate; 37. Limiting groove;

[0026] 4. tensioning wheel; 41. first connecting rod; 42. second connecting rod; 43. rotation point;

[0027] 5. Support wheel; 51. Connecting shaft; 52. Support swing arm; 53. Card slot; 54. Convex edge;

[0028] 6. Mounting sleeve; 61. Second fixing plate; 62. Connecting step; 63. Blocking plate; 64. Sliding sleeve;

[0029] 7. Torsion spring;

[0030] 8. Driving wheel;

[0031] 9. Support roller. DETAILED DESCRIPTION

[0032] The specific implementation modes of the present utility model are introduced with reference to the accompanying drawings.

[0033] refer to Figure 1 , the figure is a schematic diagram of the side structure of the vehicle body lifting mechanism and the vehicle body 1. A row of track wheels is arranged under the vehicle body 1. This row of track wheels is, from left to right, a driving wheel 8, a first lifting wheel 2, four supporting wheels 5, a second lifting wheel 2, and a tensioning wheel 4. The driving wheel 8 is used to drive the track 11 to rotate, so that the tank toy car can travel on the ground, road surface and other supporting surfaces through the track 11. The two lifting wheels 2 are used for the lifting of the vehicle body 1. The height of the vehicle body 1 can be adjusted according to different road conditions to improve the passability of the tank toy car. The four supporting wheels 5 and the two lifting wheels 2 are used together for the overall load-bearing to support the tank toy car. The tensioning wheel 4 is used to follow up and adjust the tension of the track 11, so that there is a good bonding force between the track 11 and the driving wheel 8 to maintain the transmission relationship between the two.

[0034] refer to Figures 1 to 7 A vehicle body lifting mechanism includes a lifting drive assembly 3 and two rows of track wheels arranged on the outside of a vehicle body 1, each row of track wheels includes two lifting wheels 2 arranged on the inner side of the same track 11, the lifting wheel 2 presses the track 11 on a supporting surface, the lifting drive assembly 3 is arranged inside the vehicle body 1, the lifting drive assembly 3 includes a lifting motor 31 and a transmission rod 33, the lifting motor 31 is fixed inside the vehicle body 1, one end of the transmission rod 33 is transmission-connected to a reduction box 32 at the driving end of the lifting motor 31, the other end of the transmission rod 33 is exposed outside the vehicle body 1, and a lifting swing arm 34 connected to the wheel axle of the lifting wheel 2 is provided, the lifting motor 31 drives the lifting wheel 2 to rise and fall relative to the vehicle body 1 through the transmission rod 33 and the lifting swing arm 34 to adjust the height of the vehicle body 1 relative to the supporting surface.

[0035] The vehicle body lifting mechanism of the embodiment of the present application drives the four lifting wheels 2 to lift relative to the vehicle body 1 through four sets of lifting drive components 3, and simultaneously lifts the vehicle body 1 at four positions to ensure that the height of the vehicle body 1 can be stably adjusted. The lifting motor 31 cooperates with the reduction box 32 to reduce the rotation speed and increase the torque, so that the lifting motor 31 and the reduction box 32 can output a larger torque to lift the vehicle body 1. The vehicle body lifting mechanism can adjust the height of the vehicle body 1 according to different road conditions, thereby improving the passability of the tank toy car to meet the needs of different users.

[0036] In order to ensure that the lifting drive assembly 3 can stably drive the lifting wheel 2, in this embodiment, reference Figures 2 to 5 A limiting sleeve 35 is provided in the vehicle body 1, the transmission rod 33 is passed through the limiting sleeve 35, a first fixing plate 36 is provided outside the limiting sleeve 35, and the first fixing plate 36 is fixed to the vehicle body 1 by bolts.

[0037] It can be understood that, with such a configuration, the transmission rod 33 is inserted into the limiting sleeve 35, the limiting sleeve 35 and the transmission rod 33 are in sliding contact with each other, and the limiting sleeve 35 is fixed to the vehicle body 1 by two first fixing plates 36, so that the connection between the limiting sleeve 35 and the vehicle body 1 is stable, ensuring that the rotation axis of the transmission rod 33 will not change, avoiding shaking during the rotation process of the transmission rod 33, and allowing the lifting drive assembly 3 to stably drive the lifting wheel 2 to move up and down relative to the vehicle body 1.

[0038] In order to limit the rotation angle of the lifting swing arm 34, in this embodiment, reference Figure 4 The limiting sleeve 35 has a limiting groove 37, and a limiting block 341 is arranged on the transmission rod 33. The limiting block 341 is arranged in the limiting groove 37 to rotate with the transmission rod 33. The limiting sleeve 35 controls the rotation angle of the transmission rod 33 and the lifting swing arm 34 through the cooperation of the limiting groove 37 and the limiting block 341.

[0039] It can be understood that, with such a configuration, the opening angle of the limit slot 37 is the rotation angle of the lifting swing arm 34. The limit slot 37 is used to limit the rotation angle of the transmission rod 33 and the lifting swing arm 34 to prevent the lifting swing arm 34 from rotating excessively, thereby avoiding the lifting wheel 2 from colliding with the support wheel 5 and the driving wheel 8, or even getting stuck.

[0040] In order to adapt to a tank toy car with a smaller body 1, in this embodiment, reference Figure 2 and Figure 3 The lifting motor 31 and the transmission rod 33 are distributed inside the vehicle body 1 in a mutually perpendicular manner through the reduction box 32.

[0041] It is understandable that, with such an arrangement, the mutually perpendicular lifting motor 31 and transmission rod 33 can reduce the distance occupied in the width direction of the vehicle body 1, which is conducive to arranging the lifting drive assembly 3 in a vehicle body 1 with a smaller width, thereby adapting to more vehicle models of different sizes.

[0042] In order to adjust the tension of the track wheel, in this embodiment, refer to Figure 5 Each row of track wheels also includes a tensioning wheel 4, the wheel axle of the tensioning wheel 4 is connected with a first connecting rod 41 and a second connecting rod 42, the first connecting rod 41 is pivotally connected to a connecting rod 342 extending from the upgrade swing arm, and the second connecting rod 42 is pivotally connected to a rotation point 43 on the outer wall of the vehicle body 1. The lifting motor 31 drives the tensioning wheel 4 to rotate around the rotation point 43 through the lifting swing arm 34, the connecting rod 342 and the first connecting rod 41 to adjust the tension of the track 11.

[0043] It can be understood that, with such a configuration, when the lifting wheel 2 swings downward to raise the height of the vehicle body 1, the connecting rod 342 pulls the tensioning wheel 4 toward the lifting wheel 2 through the first connecting rod 41; when the lifting wheel 2 swings upward to lower the height of the vehicle body 1, the connecting rod 342 pushes the tensioning wheel 4 to move away from the lifting wheel 2 through the first connecting rod 41; through the cooperation of the first connecting rod 41, the second connecting rod 42, and the connecting rod 342, the tensioning wheel 4 synchronously adjusts the tensioning force of the track 11 in a manner of following the movement of the lifting wheel 2, so that there is a good bonding force between the track 11 and the driving wheel 8, and the transmission relationship between the two is maintained, so that the tank toy car can achieve the effect of adjusting the height of the vehicle body 1 according to different road conditions without affecting the driving function of the tank toy car.

[0044] In order to ensure that the track wheels can bear the weight of the tank toy car, in this embodiment, reference Figure 1 to Figure 2 , Figure 6 to Figure 7 Each row of track wheels also includes four support wheels 5. Eight connecting shafts 51 are arranged on the inner side of the vehicle body 1. The connecting shaft 51 is provided with a support swing arm 52 connected to the wheel axle of the support wheel 5. A mounting sleeve 6 fixed to the vehicle body 1 is sleeved on the connecting shaft 51. A torsion spring 7 is arranged between the connecting shaft 51 and the mounting sleeve 6. The elastic force of the torsion spring 7 is converted into a pressure to drive the support wheel 5 to press the track 11 to the supporting surface through the connecting shaft 51 and the support swing arm 52.

[0045] It can be understood that, with such a configuration, the weight of the tank toy car is dispersed through the four support wheels 5 to avoid all the weight being pressed on the lifting wheel 2, thereby reducing the influence of the weight of the tank toy car on the lifting drive component 3 and the lifting wheel 2 on the lifting process of the vehicle body 1; a shock-absorbing structure is formed by the torsion spring 7 and the support swing arm 52 to ensure that the support wheel 5 has good passability. At the same time, the elastic force of the torsion spring 7 will drive the support wheel 5 to press downward against the track 11 to ensure good contact between the support wheel 5 and the track 11. When the lifting drive component 3 drives the lifting wheel 2 to lift and lower the height of the vehicle body 1, the support wheel 5 can change height together with the vehicle body 1.

[0046] In order to ensure that the torsion spring 7 can act well on the connecting shaft 51, in this embodiment, Figure 6 to Figure 7 A second fixing plate 61 is arranged on the outer side of the mounting sleeve 6, and the second fixing plate 61 is fixed to the vehicle body 1 by bolts. A connecting step 62 is arranged on the inner wall of the mounting sleeve 6, and a slot 53 is opened along the axis of the connecting shaft 51. The two ends of the torsion spring 7 are respectively clamped in the connecting step 62 and the slot 53.

[0047] It can be understood that, in such a configuration, the torsion spring 7 is sleeved on the connecting shaft 51, and the two ends of the torsion spring 7 are respectively connected to the connecting shaft 51 and the mounting sleeve 6, and the second fixing plate 61 of the mounting sleeve 6 is fixed to the vehicle body 1 by bolts, so that one end of the torsion spring 7 is fixed to the vehicle body 1, so that the other end of the torsion spring 7 can directly drive the connecting shaft 51 to rotate, so that the connecting shaft 51 and the supporting swing arm 52 can automatically adjust the height of the support wheel 5 following the rise and fall of the vehicle body 1 under the action of the torsion spring 7.

[0048] In order to prevent the connecting shaft 51 from being loosened from the mounting sleeve 6, in this embodiment, Figure 7 A convex edge 54 is provided at the end of the connecting shaft 51 , and a blocking piece 63 engaged with the convex edge 54 is provided on the outer side of the mounting sleeve 6 .

[0049] It is understandable that, with such a configuration, the connecting shaft 51 needs to be connected to the torsion spring 7. Under the elastic force of the torsion spring 7, the connecting shaft 51 is easily detached from the mounting sleeve 6. The end of the connecting shaft 51 is stuck on the outside of the mounting sleeve 6 through the baffle 63, thereby limiting the possibility of the connecting shaft 51 automatically detaching from the mounting sleeve 6, thereby ensuring that the connection between the connecting shaft 51 and the mounting sleeve 6 is stable.

[0050] In order to ensure that the connecting shaft 51 is concentric with the mounting sleeve 6, in this embodiment, Figure 7 A sliding sleeve 64 is provided between the connecting shaft 51 and the mounting sleeve 6 , the inner wall of the sliding sleeve 64 is slidably connected to the outer wall of the connecting shaft 51 , and the outer wall of the sliding sleeve 64 is clamped and fixed to the inner wall of the shaft hole of the mounting sleeve 6 .

[0051] It is understandable that, with such a configuration, the sliding sleeve 64 is used to ensure that the connecting shaft 51 is concentric with the mounting sleeve 6 , and at the same time, sufficient lubrication is ensured during the rotation of the connecting shaft 51 , so that the connecting shaft 51 and the supporting swing arm 52 rotate smoothly.

[0052] It should be further explained that track rollers 9 are also provided on the outside of the vehicle body 1, and the track rollers 9 are located above the supporting wheels 5. The three track rollers 9 are used to support the track 11 on the upper side of the supporting wheels 5, thereby ensuring that the track 11 can be stably surrounded on each row of track wheels.

[0053] The four lifting drive components 3 of the embodiment of the present application are electrically connected to the control panel, and the working status of the four lifting motors 31 is controlled by the control panel. The lifting motor 31 outputs power at a speed of 8000-12000 rpm, and drives the transmission rod 33 to rotate at a speed of 4-6 rpm after passing through the reduction box 32. The torque is increased by the reduction box 32 to drive the lifting wheel 2 to overcome the gravity of the entire tank toy car to perform lifting. In terms of controlling the lifting, the control panel can control the forward and reverse rotation of the lifting motor 31. When rotating forward, the lifting motor 31 drives the lifting swing arm 34 to rotate downward, thereby lifting the vehicle body 1 relative to the support surface. When reversing, the lifting motor 31 drives the lifting swing arm 34 to rotate upward, thereby lowering the height of the vehicle body 1.

[0054] The embodiment of the present application also provides a toy car, including the above-mentioned car body lifting mechanism. Through the car body lifting mechanism, the height of the car body 1 can be adjusted according to different road conditions, improving the passability of the tank toy car to meet the needs of different users. The structure of the car body lifting mechanism is relatively simple and easy to install, which can improve production efficiency and reduce production costs.

[0055] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A vehicle body lifting mechanism, characterized in that: The invention comprises a lifting drive assembly and two rows of track wheels arranged on the outside of a vehicle body, each row of track wheels comprises at least two lifting wheels arranged on the inner side of the same track, the lifting wheels press the track onto a supporting surface, the lifting drive assembly is arranged inside the vehicle body, the lifting drive assembly comprises a lifting motor and a transmission rod, the lifting motor is fixed inside the vehicle body, one end of the transmission rod is transmission-connected to a reduction gearbox at a driving end of the lifting motor, the other end of the transmission rod is exposed outside the vehicle body, and a lifting swing arm connected to the wheel axle of the lifting wheel is provided, the lifting motor drives the lifting wheel to rise and fall relative to the vehicle body through the transmission rod and the lifting swing arm, so as to adjust the height of the vehicle body relative to the supporting surface.

2. The vehicle body lifting mechanism according to claim 1, characterized in that: A limiting sleeve is arranged in the vehicle body, the transmission rod is inserted in the limiting sleeve, a first fixing plate is arranged on the outer side of the limiting sleeve, and the first fixing plate is fixed to the vehicle body by bolts.

3. The vehicle body lifting mechanism according to claim 2, characterized in that: The limiting sleeve is provided with a limiting groove, the transmission rod is provided with a limiting block, the limiting block is arranged in the limiting groove and rotates with the transmission rod, and the limiting sleeve controls the rotation angle of the transmission rod and the lifting swing arm through the cooperation of the limiting groove and the limiting block.

4. The vehicle body lifting mechanism according to claim 1, characterized in that: The lifting motor and the transmission rod are distributed inside the vehicle body in a mutually perpendicular manner through a reduction box.

5. The vehicle body lifting mechanism according to claim 1, characterized in that: Each row of track wheels also includes a tensioning wheel, the wheel axle of the tensioning wheel is connected with a first connecting rod and a second connecting rod, the first connecting rod is pivotally connected to the connecting rod extending from the upgrade swing arm, the second connecting rod is pivotally connected to the rotation point of the outer wall of the vehicle body, and the lifting motor drives the tensioning wheel to rotate around the rotation point through the lifting swing arm, the connecting rod and the first connecting rod to adjust the tension of the track.

6. The vehicle body lifting mechanism according to claim 1, characterized in that: Each row of track wheels also includes multiple supporting wheels, multiple connecting shafts are arranged inside the vehicle body, the connecting shaft is provided with a supporting swing arm connected to the wheel axle of the supporting wheel, the connecting shaft is provided with a mounting sleeve fixed to the vehicle body, a torsion spring is arranged between the connecting shaft and the mounting sleeve, and the elastic force of the torsion spring is converted into pressure to drive the supporting wheel to press the track toward the supporting surface through the connecting shaft and the supporting swing arm.

7. The vehicle body lifting mechanism according to claim 6, characterized in that: A second fixing plate is arranged on the outside of the mounting sleeve, and the second fixing plate is fixed to the vehicle body by bolts. A connecting step is arranged on the inner wall of the mounting sleeve, and a slot is arranged along the axis of the connecting shaft. The two ends of the torsion spring are respectively clamped in the connecting step and the slot.

8. The vehicle body lifting mechanism according to claim 7, characterized in that: The end of the connecting shaft is provided with a convex edge, and the outer side of the mounting sleeve is provided with a blocking piece which is clamped with the convex edge.

9. The vehicle body lifting mechanism according to claim 8, characterized in that: A sliding sleeve is arranged between the connecting shaft and the mounting sleeve, the inner wall of the sliding sleeve is slidably connected with the outer wall of the connecting shaft, and the outer wall of the sliding sleeve is clamped and fixed with the inner wall of the shaft hole of the mounting sleeve.

10. A toy car, characterized in that: The vehicle body lifting mechanism comprises the vehicle body lifting mechanism according to any one of claims 1 to 9.

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