Child two-wheeled motorcycle

Abstract

The child motorcycle comprises a frame, an engine, an oil tank and an oil pump, the engine and the oil tank are both arranged on the frame, the oil pump is connected with the engine and the oil tank through pipelines, and a front wheel and a rear wheel are rotationally installed on the frame. The engine and the rear wheel are matched together through a transmission belt, two handles are arranged on a handlebar of the frame, a saddle and the handlebar are arranged on the frame, the electric bicycle further comprises a controller, a pressure sensor and a surface-mounted temperature sensor, the controller is electrically connected with the oil pump, and the surface-mounted temperature sensor is electrically connected with the saddle. A patch type temperature sensor is arranged on the handle, the pressure sensor is arranged between the saddle and the frame, and the patch type temperature sensor and the pressure sensor are both electrically connected with the controller.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of outdoor children's playground equipment, in particular to a children's two-wheeled motorcycle. BACKGROUND

[0002] The children's two-wheeled motorcycle is a common children's entertainment appliance, and the patent announcement document CN222934044U discloses a children's two-wheeled motorcycle. This structure of the children's two-wheeled motorcycle has a problem when in use, that is, this structure of the motorcycle has a problem when riding, that is, this motorcycle does not have a corresponding monitoring mechanism to monitor whether the rider has taken a correct sitting posture. If the correct sitting posture is not taken, the driver is prone to overturning during the driving process of the vehicle, so the safety of this structure of the children's two-wheeled motorcycle is relatively poor. SUMMARY

[0003] The present application proposes a children's two-wheeled motorcycle for the above problems.

[0004] The technical scheme adopted by the present application is as follows:

[0005] A children's two-wheeled motorcycle, comprising a frame, an engine, an oil tank and an oil pump, the engine and the oil tank are arranged on the frame, the oil pump is connected with the engine and the oil tank through a pipeline, a front wheel and a rear wheel are rotatably installed on the frame, the engine and the rear wheel are matched together through a transmission belt, two handlebars are arranged on the handlebars of the frame, a saddle and a handlebar are arranged on the frame, further comprising a controller, a pressure sensor and a patch temperature sensor, the controller is electrically connected with the oil pump, the patch temperature sensor is arranged on the handlebar, the pressure sensor is arranged between the saddle and the frame, and the patch temperature sensor and the pressure sensor are electrically connected with the controller.

[0006] In this type of children's two-wheeled motorcycle, the engine will only run when the fuel pump pumps fuel from the tank to the engine. As a children's recreational toy, this type of children's two-wheeled motorcycle is not permitted as a means of transportation on municipal roads. It is suitable as a recreational toy for children aged 10-12. The engine power is not high, and the maximum speed is limited to 20 km / h. To ensure children do not adopt incorrect riding postures, pressure sensors and surface-mount temperature sensors are installed. The surface-mount temperature sensors are located on the handlebars, and the pressure sensors are located between the saddle and the frame. When a child adopts the correct riding posture, with both hands gripping the handlebars and sitting on the saddle, the surface-mount temperature sensor will detect an increase in temperature, and the surface-mount pressure sensor will detect an increase in pressure. Only when the pressure sensor detects an increase in pressure and the surface-mount temperature sensors on the handlebars detect an increase in temperature will the fuel pump activate and pump fuel to the engine.

[0007] In summary, this type of children's two-wheeled motorcycle, by installing a patch-type temperature sensor on the handlebars and a pressure sensor between the saddle and the frame, ensures that the motorcycle will only be started when the rider is in a suitable riding position, greatly improving safety and reducing the probability of children tipping over while driving.

[0008] Meanwhile, in this type of children's two-wheeled motorcycle, the throttle is located on the handlebars. In order to ensure the reliability of children riding, the throttle is a push-button throttle with four speeds, corresponding to four pumping speeds, and the corresponding motorcycle speeds are 5km / h, 10km / h, 15km / h and 20km / h.

[0009] Optionally, it also includes an ultrasonic ranging probe, which is mounted on the frame and located near the handlebars, and is electrically connected to the controller.

[0010] The ultrasonic ranging sensor is located at the front of the vehicle frame. Specifically, the ultrasonic ranging sensor is used to detect the distance between itself and the upper body of the user. When the ultrasonic ranging sensor detects that the driver's upper body is too close to the ultrasonic ranging sensor, the controller immediately reduces the pumping speed of the oil pump, so that the oil pump pumps oil at a relatively low speed, thereby achieving speed reduction.

[0011] Optionally, it also includes calipers and brake discs, the brake discs being mounted on the front and rear wheels, the calipers being mounted on the frame, and the calipers having movably mounted compression posts for contacting the uneven curved surfaces of the brake discs.

[0012] When the caliper's compression pin is used to compress the curved surface on the brake disc, speed reduction is achieved when the compression pin contacts the curved surface. Traditional brake discs achieve speed reduction through flat-to-flat contact. However, if a child is riding and brakes suddenly, the speed will drop abruptly, which could cause the child's chest to hit the handlebars, posing a certain danger. To avoid this, this solution further incorporates a curved surface on the brake disc. The curved surface is uneven, with peaks and troughs. This allows the compression pin to slow down gradually when braking, and since the maximum speed of a motorcycle is 20 km / h, the slow deceleration will not result in an excessively long braking distance.

[0013] Optionally, the brake disc has extrusion pillars distributed on both sides, and both sides of the brake disc have uneven curved surfaces. The peaks and troughs on the curved surfaces of both sides of the brake disc do not coincide, and the height difference between the peaks and troughs is 0.5 mm to 1 mm. This level of curvature is not visible to the naked eye. The length of the extrusion pillars is between 0.8 cm and 1.2 cm.

[0014] The purpose of squeezing from both sides is to ensure that the forces on both sides of the brake disc are balanced, and at the same time, to a certain extent, to shorten the braking distance.

[0015] In this type of motorcycle, the brake is located on one of the handlebars, and the brake is linked to the calipers on the front and rear wheels. When the brake is pressed, the calipers on the front and rear wheels will operate synchronously, thereby achieving simultaneous braking of the front and rear wheels.

[0016] In this type of motorcycle, when the brake is pressed, the caliper is equipped with two movable plates with a gap between them. The brake disc is located in the gap between the two movable plates. Each of the two movable plates is equipped with a compression post, which is made of rubber.

[0017] Optionally, it also includes an exhaust pipe, which is mounted on the frame and connected to the engine. One end of the saddle is connected to a thermochromic plate, and the outlet of the exhaust pipe is located at the thermochromic plate.

[0018] The exhaust gas emitted from the exhaust pipe has a relatively high temperature. In this type of motorcycle, the exhaust gas is directly sprayed onto the thermochromic plate. The heat in the exhaust gas causes the thermochromic plate to change color. The higher the temperature, the more intense the color change. Therefore, when children are riding and playing, playground staff can simply observe the degree of color change of the thermochromic plate to judge the speed of the motorcycle, because the higher the speed, the higher the temperature of the exhaust gas emitted by the engine.

[0019] Optionally, it also includes a thermoelectric generator and a battery, wherein the battery is mounted on the vehicle frame and the thermoelectric generator is mounted on the outer wall of the exhaust pipe.

[0020] The function of the battery is to power the controller and the controller itself, while the electricity generated by the thermoelectric generator is used to replenish the battery.

[0021] Optionally, it also includes a parking lever, a tension spring, a suspension plate, a sliding sleeve bracket, a first pin, and a second pin. The suspension plate is rotatably mounted on the vehicle frame via the first pin, and the parking lever is rotatably mounted on the vehicle frame via the second pin. The parking lever is a frustum-shaped parking lever with a bottoming block at one end. The diameter of the parking lever near the second pin is larger than the diameter near the bottoming block. The sliding sleeve bracket is fitted onto the parking lever. The bottoming block is hollow and has a soft rubber block on one side. The two ends of the tension spring hook onto the sliding sleeve bracket and the suspension plate, respectively.

[0022] When a vehicle is in motion, the parking lever is suspended and not in contact with the ground under the action of the tension spring. However, if the tension spring breaks or falls off due to vibration or other external forces, the parking lever will rotate around the second pin. The soft rubber block of the parking lever will then contact the ground. Without the tension of the tension spring, the sliding bracket will slide towards the bottoming block. When it slides towards the bottoming block, it will impact the bottoming block, creating an impact sound similar to hitting a hollow metal object, which serves as a warning. With the help of the elasticity of the soft rubber block, the parking lever will shake back and forth several times, thus creating several impact sounds of hollow metal objects, further enhancing the warning effect.

[0023] Optionally, it also includes a third pin and a pedal. The pedal is made of plastic and is fixedly fitted to the third pin. The third pin is rotatably mounted on the frame. A plastic fitting pin is inserted into the third pin. The suspension plate is made of iron. A magnetic ring is sleeved on the third pin.

[0024] During normal riding, the pedals are parallel to the ground, allowing the rider to press down. When the tension spring breaks or detaches, the suspension plate becomes free to rotate. Under the attraction of the magnetic ring, the suspension plate rotates, with one end rotating towards the third pin. Simultaneously, one end of the suspension plate presses against the pin, causing the third pin to rotate as well. When the third pin rotates 10-20 degrees under the resistance of the suspension plate, it causes the pedal to rotate. This pedal rotation creates a lifting and resistance effect on the rider's foot, thus alerting the rider to the spring breakage or detachment. Therefore, this structure can produce several metallic clanging sounds and pedal rotation and lifting when the tension spring breaks or detaches, providing a good warning effect.

[0025] Optionally, the engine's output shaft and the rear wheel are both equipped with chain sprockets, and the two chain sprockets are linked by a belt; and there is a notch between two adjacent chain teeth on the chain sprockets, with the bottom of the notch being mountain-shaped.

[0026] Using a belt and chain drive provides excellent noise reduction. Additionally, a notch with a mountain-shaped bottom is designed between adjacent teeth of the chain drive to allow foreign objects attached to the belt to fall off, thus ensuring stable transmission between the belt and the chain drive.

[0027] Optionally, a bogie is rotatably mounted on the handlebars, the front wheel is rotatably mounted on the bogie, and the handlebars are mounted on the bogie.

[0028] The beneficial effects of this invention are: by setting a patch-type temperature sensor on the handlebars and a pressure sensor between the saddle and the frame, it is ensured that the driver will only engage the vehicle when in a suitable riding position, which greatly improves safety and reduces the probability of children overturning while driving. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0030] Figure 1 This is a simplified structural diagram of a children's two-wheeled motorcycle;

[0031] Figure 2 yes Figure 1 A simplified enlarged diagram of point A in the middle;

[0032] Figure 3 yes Figure 1 A simplified enlarged diagram of point B in the middle;

[0033] Figure 4 This is a schematic diagram showing the installation relationship between the chain and the belt;

[0034] Figure 5 yes Figure 4 A simplified, enlarged diagram of point C in the middle;

[0035] Figure 6 yes Figure 4 A simplified enlarged diagram of point D in the middle;

[0036] Figure 7 This is a simplified schematic diagram of the caliper structure;

[0037] Figure 8 This is a simplified schematic diagram of the brake disc structure.

[0038] The labels in the attached diagram are as follows: 1. Handle; 2. Fuel tank; 3. Ultrasonic ranging sensor; 4. Bogie; 5. Front wheel; 6. Brake pad; 601. Curved surface; 7. Caliper; 701. Moving plate; 702. Clearance; 703. Extrusion column; 8. Oil pump; 9. Engine; 10. Chain chain; 1001. Notch; 1002. Chain tooth; 11. Belt; 12. Rear wheel; 13. Saddle; 14. Thermosensitive color-changing plate; 15. Exhaust pipe; 16. Brake. Vehicle; 17. Surface mount temperature sensor; 18. Controller; 1801. Push-button throttle; 19. Pedal; 20. Magnet ring; 21. Third pin; 22. Fitting pin; 23. First pin; 2301. Suspension plate; 24. Second pin; 25. Tension spring; 26. Sliding sleeve bracket; 27. Parking lever; 28. Soft rubber block; 29. ​​Bottom contact block; 30. Frame; 31. Pressure sensor; 32. Battery; 33. Thermoelectric generator. Detailed Implementation

[0039] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0041] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0042] As attached Figure 1 ~Appendix Figure 8As shown, a children's two-wheeled motorcycle includes a frame 30, an engine 9, a fuel tank 2, and a fuel pump 8. The engine 9 and the fuel tank 2 are both mounted on the frame 30. The fuel pump 8 is connected to the engine 9 and the fuel tank 2 via pipes. A front wheel 5 and a rear wheel 12 are rotatably mounted on the frame 30. The engine 9 and the rear wheel 12 are connected together by a transmission belt. Two handlebars 1 are provided on the handlebars of the frame 30. A saddle 13 and handlebars 1 are provided on the frame 30. The motorcycle also includes a controller 18, a pressure sensor 31, and a patch temperature sensor 17. The controller 18 is electrically connected to the fuel pump 8. The patch temperature sensor 17 is provided on the handlebars 1. The pressure sensor 31 is located between the saddle 13 and the frame 30. Both the patch temperature sensor 17 and the pressure sensor 31 are electrically connected to the controller 18.

[0043] In this type of children's two-wheeled motorcycle, the engine 9 will only run when the oil pump 8 pumps the oil from the oil tank 2 to the engine 9. This type of children's two-wheeled motorcycle is a children's recreational toy and cannot be used as a means of transportation on municipal roads. This type of children's two-wheeled motorcycle is suitable as a recreational toy for children aged 10 to 12. The engine 9 has low power, and the maximum speed of this type of children's two-wheeled motorcycle is limited to 20 km / h. In this type of children's two-wheeled motorcycle, to ensure that children do not adopt an incorrect riding posture, a pressure sensor 31 and a patch-type temperature sensor 17 are installed. The patch-type temperature sensor 17 is installed on the handlebars 1, and the pressure sensor 31 is installed between the saddle 13 and the frame 30. When the child adopts the correct riding posture, with both hands holding the handlebars 1 and sitting on the saddle 13, the temperature sensed by the patch-type temperature sensor 17 will increase, and the pressure sensed by the patch-type pressure sensor 31 will increase the pressure. Only when the pressure sensor 31 senses an increase in pressure and the patch-type temperature sensors 17 on both handlebars 1 sense an increase in temperature will the oil pump 8 be turned on and pump oil to the engine 9.

[0044] In summary, this type of children's two-wheeled motorcycle, by installing a patch-type temperature sensor 17 on the handlebars 1 and a pressure sensor 31 between the saddle 13 and the frame 30, ensures that the driver will only start the motorcycle when in a suitable riding position, which greatly improves safety and reduces the probability of children overturning while driving.

[0045] Meanwhile, in this type of children's two-wheeled motorcycle, the throttle is located on the handlebars. In order to ensure the reliability of children riding, the throttle is a push-button throttle 1801 with four speeds, corresponding to four pump speeds, and the corresponding motorcycle speeds are 5km / h, 10km / h, 15km / h and 20km / h.

[0046] As attached Figure 1 ~Appendix Figure 8As shown, it also includes an ultrasonic ranging probe, which is mounted on the frame 30 and located near the handlebars. The ultrasonic ranging probe is electrically connected to the controller 18.

[0047] The ultrasonic ranging sensor 3 is located at the front of the vehicle frame 30. Specifically, the ultrasonic ranging sensor 3 is used to detect the distance between itself and the upper body of the user. When the ultrasonic ranging sensor 3 detects that the distance between the driver's upper body and the ultrasonic ranging sensor 3 is too close, the controller 18 immediately reduces the pumping speed of the oil pump 8, so that the oil pump 8 pumps oil at a relatively low speed, thereby achieving speed reduction.

[0048] As attached Figure 1 ~Appendix Figure 8 As shown, it also includes a caliper 7 and a brake disc 16. The brake disc 16 is mounted on the front wheel 5 and the rear wheel 12. The caliper 7 is mounted on the frame 30. A compression post 703 is movably mounted on the caliper 7. The compression post 703 is used to contact the uneven curved surface 601 on the brake disc 16.

[0049] When the compression pin 703 on the caliper 7 is used to compress the curved surface 601 on the brake disc 16, speed reduction is achieved when the compression pin 703 contacts the curved surface 601 on the compression pin 703. Traditional brake discs achieve speed reduction through flat-to-flat contact. However, if a child is riding and brakes suddenly, the speed will drop sharply, which may cause the child's chest to hit the handlebars, which is dangerous. To avoid the above situation, this solution further sets a curved surface 601 on the brake disc 16. The curved surface 601 is uneven with peaks and troughs. When the compression pin 703 compresses the curved surface 601, the brake disc 16 can slow down slowly. Since the maximum speed of the motorcycle is 20km / h, slow deceleration will not result in an excessive braking distance.

[0050] As attached Figure 1 ~Appendix Figure 8 As shown, both sides of the brake disc 16 have compression pillars 703, and both sides of the brake disc 16 have uneven curved surfaces 601. The peaks and troughs on the curved surfaces 601 on both sides of the brake disc 16 do not coincide, and the height difference between the peaks and troughs is 0.5 mm to 1 mm. This amplitude of the curved surface 601 is not visible to the naked eye. The length of the compression pillars 703 is between 0.8 cm and 1.2 cm.

[0051] The purpose of squeezing from both sides is to ensure that the forces on both sides of the brake disc are balanced, and at the same time, to a certain extent, to shorten the braking distance.

[0052] Specifically, in this type of motorcycle, the brake 16 is mounted on one of the handlebars 1, and the brake 16 is linked with the calipers 7 on the front wheel 5 and the rear wheel 12. When the brake 16 is pressed, the calipers 7 on the front wheel 5 and the rear wheel 12 will operate synchronously, thereby achieving simultaneous braking of the front and rear wheels 12.

[0053] In this type of motorcycle, when the brake 16 is pressed, the caliper 7 is provided with two movable plates 701, and there is a gap between the two movable plates 701. The brake disc 16 is located in the gap between the two movable plates 701. Each of the two movable plates 701 is provided with a squeezing post 703, which is made of rubber.

[0054] As attached Figure 1 ~Appendix Figure 8 As shown, it also includes an exhaust pipe 15, which is mounted on the frame 30 and connected to the engine 9. One end of the saddle 13 is connected to a thermochromic plate 14, and the outlet of the exhaust pipe 15 is located at the thermochromic plate 14.

[0055] The gas discharged from the exhaust pipe 15 has a relatively high temperature. In this type of motorcycle, the exhaust gas is directly sprayed onto the thermochromic plate. The heat in the exhaust gas causes the thermochromic plate 14 to change color. The higher the temperature, the more intense the color change of the thermochromic plate 14. Therefore, when children ride and play, the playground manager can simply observe the degree of color change of the thermochromic plate 14 to check the speed of the motorcycle, because the higher the speed, the higher the temperature of the exhaust gas discharged from the engine 9.

[0056] As attached Figure 1 ~Appendix Figure 8 As shown, it also includes a thermoelectric generator 33 and a battery 32. The battery 32 is mounted on the frame 30, and the thermoelectric generator 33 is mounted on the outer wall of the exhaust pipe 15.

[0057] The function of the storage battery 32 is to supply power to the controller 18, while the power generated by the thermoelectric generator 33 is used to replenish the storage battery 32.

[0058] As attached Figure 1 ~Appendix Figure 8As shown, it also includes a parking lever 27, a tension spring 25, a suspension plate 2301, a sliding bracket 26, a first pin 23, and a second pin 24. The suspension plate 2301 is rotatably mounted on the frame 30 via the first pin 23. The parking lever 27 is rotatably mounted on the frame 30 via the second pin 24. The parking lever 27 is a frustum-shaped parking lever 27. One end of the parking lever 27 is provided with a bottoming block 29. The diameter of the parking lever 27 near the second pin 24 is larger than the diameter of the side near the bottoming block 29. The sliding bracket 26 is fitted onto the parking lever 27. The bottoming block 29 is a hollow bottoming block 29. A soft rubber block 28 is provided on one side of the bottoming block 29. The two ends of the tension spring 25 hook onto the sliding bracket 26 and the suspension plate 2301, respectively.

[0059] When the vehicle is in normal operation, the parking lever 27 is suspended and not in contact with the ground under the action of the tension spring 25. However, if the tension spring 25 breaks or falls off due to vibration or other external forces, the parking lever 27 will rotate around the second pin 24, and the parking lever 27 will contact the ground with the soft rubber block 28. Without the tension of the tension spring 25, the sliding bracket 26 will slide towards the bottoming block 29. When it slides towards the bottoming block 29, it will impact the bottoming block 29, creating an impact sound similar to hitting a hollow metal, which serves as a warning. With the help of the elasticity of the soft rubber block 28, the parking lever 27 will shake back and forth several times, thus creating several impact sounds of hollow metal, which enhances the warning effect.

[0060] As attached Figure 1 ~Appendix Figure 8 As shown, it also includes a third pin 21 and a pedal 19. The pedal 19 is made of plastic and is fixedly fitted with the third pin 21. The third pin 21 is rotatably mounted on the frame 30. A plastic fitting pin 22 is inserted into the third pin 21. The suspension plate 2301 is made of iron. A magnetic ring 20 is sleeved on the third pin 21.

[0061] During normal riding, pedal 19 is parallel to the ground and is used by the rider. When the tension spring 25 breaks or falls off, the suspension plate 2301 becomes free to rotate. Under the attraction of the magnetic ring 20, the suspension plate 2301 rotates, with one end rotating towards the third pin 21. Simultaneously, one end of the suspension plate 2301 is pressed against the pin 22, causing the third pin 21 to rotate as well. When the third pin 21 rotates 10-20 degrees under the resistance of the suspension plate 2301, it will cause pedal 19 to rotate. The rotation of pedal 19 will create a lifting and resistance effect on the rider's foot, thus serving as a warning to the bicycle that the tension spring 25 has broken or fallen off. Therefore, the above structure can produce several metallic clanging sounds and cause pedal 19 to rotate and rise when the tension spring 25 breaks or falls off, providing a good warning effect.

[0062] As attached Figure 1 ~Appendix Figure 8 As shown, the output shaft of the engine 9 and the rear wheel 12 are both equipped with chain discs 10, and the two chain discs 10 are linked by a belt 11; and a notch 1001 is provided between two adjacent chain teeth 1002 on the chain disc 10, and the bottom of the notch 1001 is shaped like a mountain peak.

[0063] The use of belt 11 and chain disc 10 for transmission has a good noise reduction effect. At the same time, a notch 1001 with a mountain-shaped bottom is set between two adjacent chain teeth 1002 of chain disc 10. This allows foreign objects attached to belt 11 to fall off, thereby ensuring stable transmission between belt 11 and chain disc 10.

[0064] As attached Figure 1 ~Appendix Figure 8 Figure 1 Figure 8 As shown, a bogie 4 is rotatably mounted on the handlebars, the front wheel 5 is rotatably mounted on the bogie 4, and the handlebar 1 is mounted on the bogie 4.

[0065] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A children's two-wheeled motorcycle, comprising a frame, an engine, a fuel tank, and a fuel pump, wherein the engine and fuel tank are both mounted on the frame, the fuel pump is connected to the engine and fuel tank via pipes, a front wheel and a rear wheel are rotatably mounted on the frame, the engine and the rear wheel are connected by a drive belt, two handlebars are provided on the handlebars of the frame, and a saddle and handlebars are provided on the frame, characterized in that, It also includes a controller, a pressure sensor, and a patch temperature sensor. The controller is electrically connected to the oil pump. A patch temperature sensor is installed on the handle. The pressure sensor is installed between the saddle and the frame. Both the patch temperature sensor and the pressure sensor are electrically connected to the controller.

2. A children's two-wheeled motorcycle according to claim 1, characterized in that, It also includes an ultrasonic ranging probe, which is mounted on the frame and located near the handlebars. The ultrasonic ranging probe is electrically connected to the controller.

3. A children's two-wheeled motorcycle according to claim 1, characterized in that, It also includes calipers and brake discs, the brake discs being mounted on the front and rear wheels, the calipers being mounted on the frame, and the calipers having movably mounted compression pins for contacting the uneven curved surfaces of the brake discs.

4. A children's two-wheeled motorcycle according to claim 3, characterized in that, The brake disc has compression columns distributed on both sides, and both sides of the brake disc have uneven curved surfaces. The peaks and troughs on the curved surfaces on both sides of the brake disc do not coincide, and the height difference between the peaks and troughs is 0.5 mm to 1 mm.

5. A children's two-wheeled motorcycle according to claim 1, characterized in that, It also includes an exhaust pipe, which is mounted on the frame and connected to the engine. One end of the saddle is connected to a thermochromic plate, and the outlet of the exhaust pipe is located at the thermochromic plate.

6. A children's two-wheeled motorcycle according to claim 5, characterized in that, It also includes a thermoelectric generator and a battery, with the battery mounted on the vehicle frame and the thermoelectric generator mounted on the outer wall of the exhaust pipe.

7. A children's two-wheeled motorcycle according to claim 1, characterized in that, It also includes a parking lever, a tension spring, a suspension plate, a sliding sleeve bracket, a first pin, and a second pin. The suspension plate is rotatably mounted on the vehicle frame via the first pin, and the parking lever is rotatably mounted on the vehicle frame via the second pin. The parking lever is a frustum-shaped parking lever with a bottoming block at one end. The diameter of the parking lever near the second pin is larger than the diameter near the bottoming block. The sliding sleeve bracket is fitted onto the parking lever. The bottoming block is hollow and has a soft rubber block on one side. The two ends of the tension spring hook onto the sliding sleeve bracket and the suspension plate, respectively.

8. A children's two-wheeled motorcycle according to claim 7, characterized in that, It also includes a third pin and a pedal. The pedal is made of plastic and is fixedly fitted to the third pin. The third pin is rotatably mounted on the frame. A plastic fitting pin is inserted into the third pin. The suspension plate is made of iron. A magnetic ring is sleeved on the third pin.

9. A children's two-wheeled motorcycle according to claim 1, characterized in that, Both the output shaft of the engine and the rear wheel are equipped with chain sprockets, which are linked by a belt; and there is a notch between two adjacent chain teeth on the chain sprockets, with the bottom of the notch shaped like a mountain peak.

10. A children's two-wheeled motorcycle according to claim 1, characterized in that, A bogie is rotatably mounted on the handlebars, the front wheel is rotatably mounted on the bogie, and the handlebars are mounted on the bogie.

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