A snowmobile model

Abstract

The utility model provides a kind of sliding cross-country vehicle model, including the sliding mechanism in bottom, the rear end of sliding mechanism is movable hinged auxiliary wheel, the front of sliding mechanism is provided negative pressure culvert, visual collection component is erected above negative pressure culvert, left culvert is provided to the left side of negative pressure culvert, right culvert is provided to the right side of negative pressure culvert, the middle part of sliding mechanism is provided power supply control component, the rear of sliding mechanism is provided advancing culvert component. The wind power of four culverts in total is used to control car model advancing and steering, so that car model steering is more silky accurate, and it will not be too sensitive to cause excessive turning, greatly simplify algorithm and be more easily controlled. Sliding member can select air cushion or skis according to need. Air cushion is suitable for the ground with small friction, such as smooth race track, can reduce friction and improve sliding speed;And skis are suitable for more complex terrain, can increase the resistance and adaptability of car model.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle technology and relates to a racing autonomous tracking vehicle model, particularly a gliding off-road vehicle model. Background Technology

[0002] Intelligent vehicle competitions are comprehensive events that integrate multidisciplinary knowledge to design and solve practical or specific problems, covering multiple professional fields such as automatic control, pattern recognition, sensing technology, electronics, computer science, and mechanical engineering. To adapt to the development of the times, air-cushioned off-road categories have been added to intelligent vehicle competitions in recent years. Currently, most mainstream competition vehicle models adopt a dragon-hill structure, which widens the transverse base structure of the car, designs a double-duct system at the front of the base to provide lift and reduce ground friction, and designs two fans at the rear to provide forward propulsion and steering force. The steering and driving force provided by the two fans at the rear of the base enable tasks such as straight-line travel, cone maneuvers, and navigating multiple elements in an unpredictable order.

[0003] The operating logic of this type of competition model car is as follows: The model car starts from the starting point and is divided into three events. Since the route is not fixed, as long as the corresponding task is completed, the car can pass. The task of going around cones requires the car to turn nimbly, so the position of the fans and the structure of the model car greatly affect the speed and operation of the car. In addition, the ramp element has a significant impact on the structure of the model car. If the lateral distance of the model car is too large, it will be difficult to pass through the ramp smoothly. Narrow elements such as bridges require the model car to pass through smoothly. If there are too few fans, it will be difficult to control the direction and propulsion at the same time. Elements such as grass test the air cushion effect of the model car. Grass and sand must not be caught in the fans to avoid damaging the model car.

[0004] For example, Chinese patent document 201420354417.3 discloses an air-floating sports car, including an open-top shell. Inside the shell are a rechargeable battery, a drive and steering mechanism, an air compressor, a foot switch, a high-pressure air tank, and a seat. An air cushion is located on the lower surface of the shell. The outlet of the air compressor is connected to the inlet of the high-pressure air tank, and the outlet of the high-pressure air tank is connected to the air cushion via a high-pressure air pipe. A pressure-reducing valve is installed on the high-pressure air pipe. The foot switch is connected to the drive end of the pressure-reducing valve via an electronic control system. The rechargeable battery is connected to the drive and steering mechanism, the air compressor, and the electronic control system via wires. A ring of elastic buffer is provided around the lower part of the shell in the circumferential direction. This utility model has a simple structure, reasonable design, is easy to operate, easy to manufacture, low cost, low energy consumption, and high safety and reliability. It is suitable for children's play and can also be used as a bumper car in amusement parks.

[0005] Although the above technical solution uses an air cushion disc and a fan, its forward drive is not based on gliding, and its steering is not controlled by wind power. Therefore, this air-floating sports vehicle cannot achieve precise steering under wind control, nor can it solve the problem of ensuring travel speed through wind power. In other words, it suffers from overly sensitive steering, and the algorithm struggles to simultaneously manage both forward drive and steering forces, as only two fans control them concurrently. Therefore, the aforementioned air-floating sports vehicle is unsuitable for intelligent vehicle racing in air-cushion off-road racing. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a sliding off-road vehicle model.

[0007] The objective of this utility model can be achieved through the following technical solution: a sliding off-road vehicle model, including a sliding mechanism located at the bottom, the rear end of the sliding mechanism being a movable hinged auxiliary wheel, a negative pressure duct provided at the front of the sliding mechanism, a vision collection component mounted above the negative pressure duct, a left-direction duct provided on the left side of the negative pressure duct, a right-direction duct provided on the right side of the negative pressure duct, a power supply control component provided in the middle of the sliding mechanism, and a forward duct component provided at the rear of the sliding mechanism.

[0008] In the above-mentioned gliding off-road vehicle model, the gliding mechanism includes a chassis, with a base plate one and a base plate two attached to the upper surface of the chassis. The base plate one and the base plate two are spliced ​​together. Support bars are fixed on both sides of the chassis, and the bottom edge of the support bars extends beyond the bottom surface of the chassis. An accommodating space is formed between the bottom surface of the chassis and the inner side of the support bars, and gliding components are arranged in the accommodating space.

[0009] In the above-mentioned gliding off-road vehicle model, the gliding component is an air cushion, the air cushion has an inflatable inner cavity, an inflation port connected to the inflatable inner cavity is provided on the air cushion, a sealing valve is sealed on the inflation port, the upper surface of the air cushion is attached to the bottom surface of the chassis, and the lower surface of the air cushion extends beyond the bottom edge of the support strip.

[0010] In the above-mentioned gliding off-road vehicle model, the gliding component is a skid, and two skids are symmetrically fixed on the bottom surface of the chassis. The skid has a long strip body, and the front end of the long strip body is provided with an arc-shaped upturned head.

[0011] In the above-mentioned gliding off-road vehicle model, the negative pressure duct includes an opening on the chassis and a connection port on the bottom plate. The opening and the connection port are connected to each other. A cylindrical shell is provided on the bottom plate corresponding to the connection port. A hollow frame is provided on the top of the cylindrical shell. A Z-direction fan is installed inside the cylindrical shell.

[0012] In the aforementioned gliding off-road vehicle model, the vision collection component includes a pole inserted into the hollow frame, a bracket fixed on the pole, a camera mounted on the bracket, and a GPS locator fixed on the top of the pole.

[0013] In the above-mentioned gliding off-road vehicle model, the left-side duct includes a left support cylinder fixed on the left side of the base plate, and a left-side fan is installed inside the left support cylinder; the right-side duct includes a right support cylinder fixed on the right side of the base plate, and a right-side fan is installed inside the right support cylinder.

[0014] In the above-mentioned gliding off-road vehicle model, the power supply control component includes a support mounted on the base plate 2, a battery mounted below the support, and a circuit board mounted on the support.

[0015] In the above-mentioned gliding off-road vehicle model, the forward duct assembly includes a main frame mounted on the base plate 2, a main drive fan mounted on the main frame, and auxiliary frames symmetrically mounted on both sides of the main frame, with auxiliary drive fans mounted on the auxiliary frames.

[0016] In the above-mentioned gliding off-road vehicle model, a connecting seat is provided on the rear edge of the chassis. The connecting seat is rotatably connected to a connecting member via a shaft. One end of a transmission member is hinged to the connecting member, and the other end of the transmission member is hinged to a U-shaped frame. The central shaft is fixed inside the U-shaped frame by a wheel and axle clamp. The auxiliary wheel is rotatably sleeved on the central shaft, and an encoder is fixed on the wheel and axle clamp.

[0017] Compared with existing technologies, this gliding off-road vehicle model has the following advantages: 1. Efficient power control and precise steering: The left and right ducts control the vehicle's left and right turns via fan adjustments. The fan speed can be adjusted based on real-time data to ensure precise turning as needed, enhancing operational flexibility and accuracy. The main and auxiliary drive fans work together to provide forward propulsion, ensuring stable and efficient drive on various terrains and in different environments. In short, controlling the vehicle's forward movement and turning through the airflow from a total of four ducts results in smoother and more accurate steering, preventing over-steering and significantly simplifying the algorithm for easier control.

[0018] 2. Enhanced front-wheel drive agility and power: The chassis features a narrow lateral spacing and a long longitudinal spacing, making the model car more agile when turning and avoiding collisions on narrow roads. The long longitudinal spacing also makes the model car more adaptable to complex terrain, improving its off-road performance. A separate high-power main drive fan provides front-wheel drive, which, compared to other methods that sacrifice forward thrust for turning, further improves forward operating efficiency and makes the model car run more smoothly.

[0019] 3. Improve grip and stability: The negative pressure duct design utilizes the pressure difference between the upper and lower surfaces to exert downward pressure on the vehicle model, thereby increasing its grip and improving its agility and stability during cornering. This reduces sideslip during driving, especially on high-speed or complex road sections.

[0020] 4. Adaptive ground design: The gliding components can be selected as either air cushions or skis as needed. Air cushions are suitable for surfaces with low friction, such as smooth tracks, reducing friction and increasing gliding speed; while skis are suitable for more complex terrain, increasing the vehicle model's resistance and adaptability. They offer better performance on different surfaces.

[0021] 5. Stability and efficiency of the auxiliary wheels: The auxiliary wheels utilize a large wheel structure, which not only increases the weight of the wheels and the height of the axle, but also effectively prevents the wheels from bouncing on bumpy roads, ensuring stable operation of the vehicle model. Combined with the encoder, this makes the speed measurement of the vehicle model more accurate, ensuring high-precision control. Attached Figure Description

[0022] Figure 1 The three-dimensional structure of this gliding off-road vehicle model Figure 1 .

[0023] Figure 2 The three-dimensional structure of this gliding off-road vehicle model Figure 2 .

[0024] Figure 3 This is a top view of the gliding off-road vehicle model.

[0025] Figure 4 This is a bottom-view structural diagram of the sliding off-road vehicle model.

[0026] Figure 5 This is a top-down view of the actual gliding off-road vehicle model.

[0027] In the diagram: 1. Chassis; 2. Base plate one; 3. Base plate two; 4. Support bar; 5. Sled; 6. Upright pole; 7. Camera; 8. GPS locator; 9. Negative pressure duct; 10. Left duct; 11. Right duct; 12. Support; 13. Circuit board; 14. Main drive fan; 15. Secondary drive fan; 16. Connecting seat; 17. Connecting component; 18. Transmission component; 19. U-shaped frame; 20. Wheel and axle clamp; 21. Auxiliary wheel. Detailed Implementation

[0028] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0029] Example 1

[0030] like Figures 1 to 5 As shown, this gliding off-road vehicle model includes a gliding mechanism located at the bottom, a movable hinged auxiliary wheel 21 at the rear end of the gliding mechanism, a negative pressure duct 9 at the front of the gliding mechanism, a vision collection component mounted above the negative pressure duct 9, a left-direction duct 10 on the left side of the negative pressure duct 9, a right-direction duct 11 on the right side of the negative pressure duct 9, a power supply control component in the middle of the gliding mechanism, and a forward duct component at the rear of the gliding mechanism.

[0031] like Figures 1 to 4 As shown, preferably, the gliding mechanism includes a chassis 1, which is roughly a rectangular plate with an upward-curved edge at the front end, forming an overall shape similar to a skateboard. The chassis 1 features narrow lateral spacing and long longitudinal spacing, making the vehicle model more agile in turning and less likely to collide with boundaries (such as cones set up in competitions) when passing through narrow sections. The long longitudinal spacing makes the vehicle model adaptable to complex terrain.

[0032] The upper surface of chassis 1 is covered with base plate 2 and base plate 3, which are joined together. Both base plates 2 and 3 are fixed to chassis 1 with screws. Base plates 2 and 3 only cover the rectangular plate portion of chassis 1, exposing the upturned curved edges. The upturned curved edges help chassis 1 pass over road obstacles. Support bars 4 are fixed on both sides of chassis 1, with the bottom edge of the support bars 4 extending beyond the bottom surface of chassis 1. A receiving space is formed between the bottom surface of chassis 1 and the inner side of the support bars 4, and sliding components are arranged within the receiving space.

[0033] Preferably, the sliding component is an air cushion with an inflatable inner cavity. An inflation port communicating with the inflatable inner cavity is provided on the air cushion, and a sealing valve is plugged on the inflation port. The upper surface of the air cushion is attached to the bottom surface of the chassis 1, and the lower surface of the air cushion extends beyond the bottom edge of the support bar 4.

[0034] By using an air cushion to support the entire car model and allowing it to slide on the track surface, the elasticity of the air cushion in its inflated state is achieved, which helps to reduce friction and improve the car model's sliding speed and flexibility.

[0035] like Figures 1 to 3 As shown, preferably, the negative pressure duct 9 includes a through opening on the chassis 1 and a connection opening on the bottom plate 2. The through opening and the connection opening are connected to each other. A cylindrical shell is provided on the bottom plate 2 corresponding to the connection opening. A hollow frame is provided on the top of the cylindrical shell, and a Z-direction fan is installed inside the cylindrical shell.

[0036] The Z-axis fan is arranged vertically. When activated during driving, it draws air out from under chassis 1, creating negative pressure. This pressure difference applies downward force to the vehicle model, resulting in greater traction. This makes the vehicle model more agile when turning, less prone to skidding, and significantly increases its speed.

[0037] Preferably, the visual collection component includes a pole 6 inserted into a hollow frame, a bracket fixed on the pole 6, a camera 7 mounted on the bracket, and a GPS locator 8 fixed on the top of the pole 6.

[0038] The front of the cylinder shell is provided with a plug hole. The upright 6 is inserted into the plug hole to form a fixed position. The upright 6 is a carbon rod. A nylon tee is sleeved on the upright 6. A bracket is connected to the nylon tee. The camera 7 is fixed on the bracket by bolts.

[0039] By loosening the bolts, the nylon tee can be moved along the upright 6 to adjust the direction and angle of the camera 7, allowing the camera 7 to shoot in all directions of the chassis 1, thereby expanding the visual acquisition range in front of the vehicle model.

[0040] like Figure 1 , 2 As shown in Figures 3 and 5, preferably, the left-direction duct 10 includes a left support cylinder fixed to the left side of the base plate 2, and a left-side fan is installed inside the left support cylinder; the right-direction duct 11 includes a right support cylinder fixed to the right side of the base plate 2, and a right-side fan is installed inside the right support cylinder.

[0041] Both the left and right fans are arranged along the width of chassis 1. The left or right turn of the vehicle model is achieved by adjusting the left and right fans. When the left fan reduces or stops its airflow and the right fan increases its airflow, the vehicle model turns left; when the right fan reduces or stops its airflow and the left fan increases its airflow, the vehicle model turns right.

[0042] like Figure 1 and 2 As shown, preferably, the power supply control component includes a support 12 disposed on the base plate 2 3, a battery disposed below the support 12, and a circuit board 13 disposed on the support 12.

[0043] The circuit board 13 is specifically a PCB board, which is fixed to the top surface of the support 12 by several screws. The battery is connected to the circuit board 13 by wires, and the circuit board 13 enables the electrical control of various components. This connection structure and electrical control principle are existing technologies, so they will not be described in detail here.

[0044] like Figure 1 , 2As shown in Figures 3 and 5, preferably, the forward duct assembly includes a main frame mounted on the base plate 2 3, a main drive fan 14 mounted on the main frame, and auxiliary frames symmetrically mounted on both sides of the main frame, with auxiliary drive fans 15 mounted on the auxiliary frames.

[0045] The main drive fan 14 is located in the middle of the rear of the chassis 1, and two auxiliary drive fans 15 are symmetrically arranged on both sides of the main drive fan 14. Both the main drive fan 14 and the auxiliary drive fans 15 are arranged along the length of the chassis 1. The main drive fan 14 and the auxiliary drive fans together provide the wind power for the vehicle model to move forward, with the main drive fan 14 serving as the main driving force.

[0046] Preferably, a connecting seat 16 is provided on the rear edge of the chassis 1. The connecting seat 16 is rotatably connected to a connecting member 17 via a shaft. The connecting member 17 can swing left and right relative to the shaft, realizing the lateral movement of the auxiliary wheel 21. One end of the transmission member 18 is hinged to the connecting member 17, and the other end of the transmission member 18 is hinged to a U-shaped frame 19. A central shaft is fixed inside the U-shaped frame 19 by a wheel and axle clamp 20. The auxiliary wheel 21 is rotatably sleeved on the central shaft, and an encoder is fixed on the wheel and axle clamp 20. The up and down swinging motion is realized through the hinge point between the connecting member 17 and the transmission member 18, and further, the up and down movement of the hinge point between the transmission member 18 and the U-shaped frame 19 is realized, realizing the longitudinal movement of the auxiliary wheel 21. The auxiliary wheel 21 adopts a large wheel structure. The large wheel increases the wheel weight and raises the axle height. When passing through bumpy sections and other complex terrains, the wheel will not bounce, causing inaccurate speed measurement by the encoder.

[0047] The operating mode of this gliding off-road vehicle model is as follows: Before the competition, the GPS locator 8 is used to record the points to be visited. The angle difference between the current position and the target position is calculated in real time using the gyroscope and the current position of the GPS locator 8. After obtaining the angle difference, it is converted into the wind force ratio of the left and right fans.

[0048] For example, when moving to the right front, the airflow of the right fan needs to be reduced and the airflow of the left fan needs to be increased. The corresponding left rear auxiliary drive fan 15 and right rear auxiliary drive fan 15 can also be adjusted appropriately, and the main drive fan 14 provides the main forward driving force.

[0049] Example 2

[0050] The difference between Example 1 and Example 2 is as follows: like Figures 1 to 5As shown, preferably, the sliding component is a ski board 5. Two ski boards 5 are symmetrically fixed to the bottom surface of the chassis 1. Specifically, the ski boards 5 are installed on the chassis 1 using several screws, and can be removed by unscrewing the screws. The ski board 5 has a long strip body with an arc-shaped upturned tip at the front end. The length direction of the ski board 5 is the same as the length direction of the chassis 1, and the upturned tip of the ski board 5 and the arc-shaped upturned edge of the chassis 1 both face forward.

[0051] When traversing more complex terrain, skis 5 can be used instead of air cushions for gliding. Skis 5 with a certain angle can increase their adaptability. However, on competition surfaces such as concrete or rubber tracks, the friction is too high, resulting in very high resistance when using skis, which will reduce speed.

[0052] The specific embodiments described herein are merely illustrative examples of the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or substitute them with similar methods, without departing from the spirit of this invention or exceeding its defined scope. Although this invention has been detailed and described in the accompanying drawings and foregoing description, such descriptions are considered illustrative or exemplary rather than restrictive. It should be understood that changes and modifications can be made by those skilled in the art within the scope of the following claims. Specifically, this invention covers additional embodiments having any combination of features from the different embodiments described above. With regard to the use of the expressions "general" or "substantially," this patent application should be understood to disclose that the disclosure equally fully satisfies these features and values, i.e., without any of the foregoing characterizations as "general" or "substantially."

[0053] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A sliding off-road vehicle model, comprising a sliding mechanism located at the bottom, characterized in that, The rear end of the sliding mechanism is a movable hinged auxiliary wheel. A negative pressure duct is provided at the front of the sliding mechanism. A vision collection component is installed above the negative pressure duct. A left-direction duct is provided on the left side of the negative pressure duct. A right-direction duct is provided on the right side of the negative pressure duct. A power supply control component is provided in the middle of the sliding mechanism. A forward duct component is provided at the rear of the sliding mechanism.

2. The gliding off-road vehicle model as described in claim 1, characterized in that, The sliding mechanism includes a chassis, with a base plate one and a base plate two attached to the upper surface of the chassis. The base plate one and the base plate two are spliced ​​together. Support bars are fixed on both sides of the chassis, with the bottom edge of the support bars extending beyond the bottom surface of the chassis. An accommodating space is formed between the bottom surface of the chassis and the inner side of the support bars, and sliding components are arranged in the accommodating space.

3. The gliding off-road vehicle model as described in claim 2, characterized in that, The sliding component is an air cushion with an inflatable inner cavity. An inflation port communicating with the inflatable inner cavity is provided on the air cushion, and a sealing valve is provided on the inflation port. The upper surface of the air cushion is attached to the bottom surface of the chassis, and the lower surface of the air cushion extends beyond the bottom edge of the support bar.

4. The gliding off-road vehicle model as described in claim 2, characterized in that, The sliding component is a sled, with two sleds fixed symmetrically to the bottom surface of the chassis. Each sled has a long strip with an arc-shaped upturned tip at the front end.

5. The gliding off-road vehicle model as described in claim 2, characterized in that, The negative pressure duct includes an opening on the chassis and a connection port on the bottom plate. The opening and the connection port are connected to each other. A cylindrical shell is provided on the bottom plate corresponding to the connection port. A hollow frame is provided on the top of the cylindrical shell. A Z-axis fan is installed inside the cylindrical shell.

6. The gliding off-road vehicle model as described in claim 5, characterized in that, The visual collection component includes a pole inserted into the hollow frame, a bracket fixed on the pole, a camera mounted on the bracket, and a GPS locator fixed on the top of the pole.

7. The gliding off-road vehicle model as described in claim 2, characterized in that, The left-direction duct includes a left support cylinder fixed to one left side of the base plate, and a left-side fan is installed inside the left support cylinder; the right-direction duct includes a right support cylinder fixed to one right side of the base plate, and a right-side fan is installed inside the right support cylinder.

8. The gliding off-road vehicle model as described in claim 2, characterized in that, The power supply control component includes a support mounted on the base plate 2, a battery mounted below the support, and a circuit board mounted on the support.

9. The gliding off-road vehicle model as described in claim 2, characterized in that, The forward duct assembly includes a main frame mounted on a base plate 2, a main drive fan mounted on the main frame, and auxiliary frames symmetrically mounted on both sides of the main frame, with auxiliary drive fans mounted on the auxiliary frames.

10. The gliding off-road vehicle model as described in claim 2, characterized in that, A connecting seat is provided on the rear edge of the chassis. The connecting seat is rotatably connected to a connecting member via a shaft. One end of a transmission member is hinged to the connecting member, and the other end of the transmission member is hinged to a U-shaped frame. The central shaft is fixed inside the U-shaped frame by a wheel and axle clamp. The auxiliary wheel is rotatably sleeved on the central shaft, and an encoder is fixed on the wheel and axle clamp.

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