12results about How to "Increase downforce" patented technology

This invention discloses a variable cross-section tail wing suitable for FSAE racing cars, comprising a variable cross-section wing assembly, an upper sparsity wing, a first lower sparsity wing, a second lower sparsity wing, and endplates. The variable cross-section wing assembly consists of a main wing, a first flap, and a second flap; all three wings are variable cross-section wings. The variable cross-section wing is a small, continuous section raised at mid-span. The main wing, the first flap, and the second flap are sequentially mounted between the two endplates, roughly diagonally distributed, with the second flap featuring a grunt flap. The upper sparsity wing is mounted on the corner of the endplate, while the first and second lower sparsity wings are located near the bottom of the endplate. There are two endplates, symmetrically mounted on both sides, each featuring louvers, an outer edge flange, a leading edge notch, a trailing edge notch, and guide strips. The variable cross-section wing can reduce the turbulence caused by the headrest and minimize airflow slippage in the spanwise direction, resulting in a more uniform pressure distribution on the wing surface. The louver structure also reduces drag.

This utility model relates to the field of grape cultivation technology and discloses a ridging device for grape cultivation, comprising: a base shell, a soil-breaking auger rotatably connected inside the cavity of the base shell, both ends of the soil-breaking auger extending out from the cavity of the base shell, a motor fixedly connected to the top of the base shell, a transmission belt fixedly connected to the output end of the motor, the transmission belt being sleeved on the output end of the motor and one end of the soil-breaking auger, and a support rod symmetrically fixedly connected to the rear wall of the base shell, the support rod being rectangular; and a filter stone structure, which is set on the rear wall of the support rod for screening the soil during ridging, the filter stone structure comprising: a rear shell, a ridging roller, a linkage belt, a screen plate, a screen groove, and a shifting groove, the rear shell being fixedly connected to the rear wall of the symmetrical support rod, the ridging roller being rotatably connected to the bottom of the rear shell, the linkage belt being sleeved on the side end of the soil-breaking auger and the end of the ridging roller, the screen plate being movably connected to the front wall of the rear shell, the screen groove being opened through the wall of the screen plate, and the shifting groove being opened on the front wall of the screen plate.

The utility model discloses a kind of automatic bag opening machines of packaging bag, it is related to packaging bag automatic bag opening machine technical field, including storage frame, the inside of the storage frame is provided with packaging bag main body, the lower part of the storage frame is fixedly connected with support frame, the upper part of the support frame is fixedly connected with connecting frame, the side of the connecting frame is attached with movable plate, the upper part of the movable plate is provided with first suction cup, the side of the support frame is fixedly connected with fixed frame, the upper part of the fixed frame is fixedly connected with electric telescopic rod, the movable end of the electric telescopic rod is fixedly connected with connecting block. The utility model is provided with first suction cup, second suction cup, electric telescopic rod, has the effect of packaging bag suction bag opening, through the cooperation setting of connecting air pipe, fixed block and spray head, packaging bag bag mouth can be blown in the process of use, to increase the effect of bag opening of packaging bag, to increase the purpose of bag opening effect of packaging bag.

The embodiment of the utility model relates to the technical field of life electric appliances, and particularly discloses a sweeping robot which comprises a robot body, a front wheel and a rear wheel assembly. The front wheels are rotationally arranged at the front end of the robot body. The rear wheel assembly comprises a connecting arm, a rear wheel and an elastic assembly, the connecting arm is rotationally connected to the rear end of the robot body, the rear wheel is rotationally connected to the connecting arm, and the elastic assembly is connected with the robot body and the connecting arm. When the front end of the robot body ascends relative to the rear end of the robot body, the robot body moves relative to the connecting arm, so that the elastic assembly deforms, and the deformed elastic assembly increases the downward pressure of the rear wheels. By means of the mode, the obstacle crossing ability of the sweeping robot can be improved.

The utility model discloses a self-adaptive automobile spoiler device, which comprises a mounting bottom table, a height adjusting mechanism, lifting sleeves and a tail wing mechanism, the height adjusting mechanism is arranged in the mounting bottom table, a moving table is controlled to lift by a driving motor A, the lifting sleeves are driven by a connecting arm to stably move along a guide plate, and the tail wing mechanism is erected between the two groups of lifting sleeves. The empennage adjusting mechanism comprises an empennage frame with an airflow port and a plurality of groups of rotatable empennage plates, and the empennage adjusting mechanism adopts a driving motor B to be matched with a synchronous wheel-belt system to synchronously control the angles of all the empennage plates so as to realize the adjustment of the opening and closing degree and the inclination angle of the airflow port. The spoiler height self-adaptive lifting function and the empennage plate dynamic angle adjusting function are achieved, and the aerodynamic stability of a vehicle during high-speed running is optimized.

The utility model relates to a front suspension bracket bottom fender and vehicle, the front suspension bracket bottom fender includes: fender body and spoiler, the spoiler is located the lower wall surface of fender body, the spoiler is located at least one side of left and right direction of fender body, and the spoiler is arranged close to the back side of fender body, the spoiler includes spoiler rib, the spoiler rib extends along the front and back direction of fender body, and protrudes downward. The front suspension bracket bottom fender of the utility model can disturb the airflow of the vehicle front axle area, increase the down pressure, increase the down pressure coefficient of vehicle front axle, improve the controllability of vehicle.

The utility model discloses a contact structure of a toggle switch, which comprises a shell, a pair of static contacts arranged on the inner bottom wall of the shell, a contact piece capable of doing seesaw motion arranged at the inner bottom of the shell, movable contacts arranged at the bottoms of two ends of the contact piece, and compensation springs arranged between the movable contacts and the contact piece. The contact piece does the seesaw motion to enable the movable contact to be in contact with the static contact; an operation handle capable of swinging left and right penetrates through the top end of the shell, an action wheel is arranged at the bottom end of the operation handle, an action spring is assembled at the bottom in the operation handle and pushes the action wheel to make elastic contact with the contact piece, and the operation handle swings to drive the action wheel to roll along the contact piece and enable the contact piece to make warping movement. The circuit breaker has a contact compensation effect, and can effectively avoid the phenomenon of circuit failure caused by poor contact due to frequent touch and abrasion of contacts.

This application relates to a vehicle control method, a vehicle control system, and a vehicle. The method includes: acquiring the distance from the vehicle to a target curve, the current radius of the target curve, and the vehicle's current speed; the target curve is the curve closest to the vehicle in the current direction of travel. If, based on the distance, current speed, and current radius, the vehicle meets preset air kit activation conditions, then, based on the current speed and current radius, the actuator is controlled to activate the vehicle's air kit. The air kit activation conditions include: the distance is within a preset distance range, the current speed is greater than or equal to a preset speed threshold, and the current radius is less than or equal to a preset radius threshold. This method can promptly increase downforce on the vehicle, thereby improving the vehicle's cornering stability and solving the problem of poor vehicle control performance caused by the lag in air kit activation in existing technologies.

The utility model discloses a casing pressurizing device and rotary excavating drilling equipment, and relates to the technical field of rotary excavating drilling, and the casing pressurizing device comprises a drill rod connecting assembly and a casing connecting assembly. Wherein the drill rod connecting assembly comprises a connecting shaft and a connecting box connected with the connecting shaft, and the connecting box is used for being connected with a drill rod; the sleeve connecting assembly comprises a shaft sleeve and a connecting cylinder connected with the shaft sleeve, the shaft sleeve can be rotationally connected with the connecting shaft, and the connecting cylinder is used for being connected with a sleeve. The casing pressurizing device solves the problem that a casing is difficult to drill downwards or the drilling speed is too low.

The utility model discloses a doorsill-free laboratory door sealing device, and relates to the technical field of laboratory sealing devices. The device comprises a wall body, wherein one side of the wall body is movably connected with an experiment door; a sealing mechanism is arranged on one side of the experiment door and comprises an air pressure lifting push rod device arranged on one side of the experiment door and an elastic rubber strip arranged on one side of the experiment door. Through cooperation of the air pressure lifting push rod device and the elastic rubber strip, airtightness of the threshold-free laboratory door is achieved, the requirement for barrier-free passing of a robot or equipment is met, the problem that the airtightness is poor due to the traditional threshold-free design is solved, the elastic rubber strip is driven by the air pressure lifting push rod device and can move up and down, and the threshold-free laboratory door is convenient to use. A gap between the experiment door and the ground is dynamically filled, and the sealing effect is ensured. Meanwhile, the elastic deformability of the elastic rubber strip can adapt to the condition that the ground is tiny and uneven, and the sealing reliability is improved.

The invention discloses a multi-cable coupling wave propulsion system based on a rigid wing array and a geometric self-stabilization mechanism. According to the system, a vertical stable reference is obtained through a large-scale water surface frame, a main propulsion wing array is rigidly integrated on the system, and efficient and direct conversion of wave kinetic energy is achieved. A unique four-rope parallelogram mechanism is connected with a low-gravity-center underwater load module to form a geometric self-stabilization system with intrinsic posture recovery capability, so that rolling and pitching are greatly inhibited. The propulsive force of the system is stably transmitted through the quasi-rigid mechanism, and the low-efficiency mode that a traditional wave glider depends on oscillation pulling is eliminated. The core improvement lies in that an active navigational speed controller based on underwater airfoil attack angle adjustment is introduced, and navigational speed closed-loop accurate control is achieved through fine adjustment of system internal force balance. The problems that a traditional wave energy platform is low in efficiency, unstable and uncontrollable in navigational speed are solved, and a self-sustaining wave propulsion solution which is high in stability, long in endurance, intelligent and controllable is provided.

The utility model discloses a film metamaterial base material laminating device which comprises an unwinding mechanism for unwinding a metamaterial film and a laminating film, and further comprises a pushing mechanism for pushing a film material, the pushing mechanism comprises a pair of pushing rollers which are matched with each other, and the pushing rollers are driven by a driving structure; the anti-dislocation pressing rod structure is matched with the pushing roller; the anti-dislocation pressing rod structure comprises a plurality of anti-dislocation pressing rods penetrating through the pushing rollers, groove body structures matched with the anti-dislocation pressing rods are formed in the pushing rollers, and the anti-dislocation pressing rods penetrate through the groove body structures; the film is pressed down and attached through an anti-dislocation pressing rod; the height of the anti-dislocation pressing rod is adjusted through an adjusting support structure. By means of the structure, in the metamaterial film laminating process, stability and accuracy of film laminating are kept, and the technical defect that two films with different material attributes are prone to deviation and disengagement in the film laminating process is effectively overcome.