9results about How to "Reduce collision energy" patented technology

The utility model provides a chassis anti-collision structure assembly and a vehicle, and belongs to the technical field of vehicle parts, the chassis anti-collision structure assembly comprises a front auxiliary frame, a front lower anti-collision beam, a collision support and a connecting support; the front lower anti-collision beam is connected to the front end of the front auxiliary frame, and the area, protruding out of the front auxiliary frame, of the front lower anti-collision beam is an extension section. The collision support is connected to the outer side of the front portion of the front auxiliary frame and arranged corresponding to the extension section, and the collision support inclines forwards in the direction from inside to outside. The connecting support is connected between the front end of the collision support and the front end of the front auxiliary frame, and a triangular frame is defined by the connecting support, the collision support and the front auxiliary frame. According to the utility model, the risk that collision energy impacts the A column and intrudes into the cab is reduced, and the deformation degree of the passenger compartment is reduced.

The invention provides an anti-collision cross beam assembly of a vehicle forecabin, a vehicle body assembly of a vehicle and the vehicle. The anti-collision cross beam assembly of the vehicle forecabin comprises a first anti-collision cross beam, a first energy absorption box, a second anti-collision cross beam and a second energy absorption box. The first anti-collision cross beam is located above the second anti-collision cross beam in the height direction of the vehicle, the first anti-collision cross beam is located on the front side of a vehicle body longitudinal beam of the vehicle in the length direction of the vehicle, and the first energy absorption box is used for being connected between the first anti-collision cross beam and the vehicle body longitudinal beam; the second anti-collision beam and the second energy absorption box are both located on the front side of an auxiliary frame assembly of the vehicle in the length direction of the vehicle, the second anti-collision beam and the second energy absorption box are arranged in a staggered mode in the height direction of the vehicle, and the second anti-collision beam is connected with one end of the second energy absorption box through an anti-collision supporting piece. And the other end of the second energy absorption box is used for being connected with an auxiliary frame assembly, so that the collision force absorption effect of the anti-collision beam assembly is improved.

This application relates to the field of automotive structural technology, disclosing a door sill reinforcement beam, a door sill beam assembly, and an automobile. The door sill reinforcement beam provided by this application includes a main body, within which multiple cavities are formed in a transversely connected manner. These cavities include a first cavity, at least one second cavity, and at least one third cavity. The second and third cavities are located on opposite sides of the first cavity in the transverse direction. At least a portion of the cavities are provided with reinforcing structures, such that the stiffness of the first cavity is greater than the stiffness of the second cavity, and the stiffness of the first cavity is greater than the stiffness of the third cavity. This allows the door sill reinforcement beam to collapse and absorb energy while also possessing sufficient structural support stiffness.

The invention relates to a powder processing device and method for improving sphericity and surface smoothness of powder, the powder processing device comprises a processing cylinder and a plurality of rotating mechanisms, the lower rotating mechanism comprises stirring blades and can rotate in the forward direction, and the upper rotating mechanism comprises shaping blades and can rotate in the forward direction or in the reverse direction. A certain obtuse angle is formed between a stirring blade of the lower rotating mechanism and the rotating direction, powder can be raised better, and a shaping blade of the upper rotating mechanism comprises a positive inclined plane and a negative inclined plane. Firstly, the rotating directions of the upper rotating mechanism and the lower rotating mechanism are opposite, the inclined faces, facing the rotating direction, of the shaping blades are opposite to the moving direction of raised powder, the angles of the inclined faces are approximately perpendicular to the moving direction of the raised powder, and agglomerated powder and satellite balls are impacted and crushed; the rotating directions of the upper rotating mechanism and the lower rotating mechanism are identical, and the inclined faces, facing the rotating direction, of the shaping blades are close to the moving direction of the raised powder; and the surface smoothness of the powder is improved mainly by friction action. The stirring blades of the lower rotating mechanism enable the powder particles in the barrel to generate a friction effect, and the surface smoothness of the powder can also be rapidly improved.

This utility model provides a collision protection device and a vehicle. The collision protection device includes: a front subframe, comprising a first crossbeam and a second crossbeam spaced apart along its length and extending along its width, the first crossbeam being located at the bottom of the front subframe and below the bottom surface of the power battery; a triggering component fixed to the bottom front side of the battery housing; a bottom guard plate, one end rotatably connected to the bottom of the first crossbeam, and the other end fixedly connected to the triggering component, closely attached to and fixed to the bottom front side of the battery housing; and a curtain airbag folded and fixed inside the second crossbeam. When the first crossbeam is impacted, the triggering component is activated, and the other end of the bottom guard plate moves away from the bottom of the power battery and is fixedly connected to the triggering component; the curtain airbag is detonated, extending out from the second crossbeam, unfolding towards the bottom guard plate and the power battery, and covering the bottom front side of the power battery. This reduces the intrusion of obstacles into the power battery and the collision energy generated by obstacles on the power battery during secondary impacts.

The present application relates to a kind of powder processing device and method for improving powder sphericity and surface finish, including processing cylinder and multiple rotating mechanism, lower rotating mechanism includes stirring blade, can be rotated in positive direction, upper rotating mechanism includes shaping blade, can be rotated in positive direction or reverse direction.The stirring blade of lower rotating mechanism is a certain obtuse angle with the direction of rotation, can better lift up powder, the shaping blade of upper rotating mechanism includes two inclined planes of positive and negative direction.The rotating direction of upper and lower rotating mechanism is opposite first, the inclined plane of shaping blade towards the direction of rotation is opposite with the direction of movement of the powder lifted up, angle is close to vertical, impact and break up agglomerated powder and satellite ball, then the rotating direction of upper and lower rotating mechanism is same, the inclined plane of shaping blade towards the direction of rotation is close to the direction of movement of the powder lifted up, mainly with friction effect, improve powder surface finish.The stirring blade of lower rotating mechanism makes the friction effect between powder particles in cylinder, can also quickly improve the surface finish of powder.

This utility model provides a buffer device for elevator car overshooting, relating to the field of elevator safety technology. The buffer device includes a base plate, an energy-absorbing plate, a safety airbag, and a hydraulic buffer. The base plate is fixed to the top of the shaft. The hydraulic buffer is fixedly connected to the bottom surface of the base plate. The energy-absorbing plate is positioned below the hydraulic buffer and is slidably connected to the base plate, allowing it to rise and fall relative to the base plate. The safety airbag is fixedly connected to the bottom surface of the energy-absorbing plate. When an elevator car overshoots, the car first collides with the safety airbag. If the impact force exceeds a preset threshold, the airbag inflates within a short time to absorb the collision energy. The energy-absorbing plate continues to absorb the remaining energy, and the hydraulic buffer further reduces the collision energy. This buffer device significantly reduces the collision energy during an elevator car overshoot, minimizing harm to passengers and cargo inside the elevator car and improving elevator safety.

The invention relates to a device for reducing an underwater vehicle pore cavity opening shear oscillation line spectrum peak value, and the device comprises a light housing which is provided with a plurality of openings in the surface; the bending plate assembly is connected to the edge of the side, facing fluid, of the opening, the bending plate assembly comprises a plate body, a fixed end and a height adjuster, the fixed end is fixedly connected to the edge of the opening, the plate body is rotationally connected to the fixed end, and the height adjuster is connected between the lower end of the plate body and the inner side of the opening. According to the device for reducing the shear oscillation line spectrum peak value of the pore cavity opening of the underwater navigation body, the inclined bent plate type structure is installed at the pore cavity opening of the underwater navigation body, and efficient hydrodynamic optimization of navigation bodies with different speeds is achieved. The obliquely-arranged bent plate assembly can effectively guide energy of the shear layer to be dispersed obliquely upwards, the collision energy of a shear layer vortex system and the trailing edge of the hole cavity is remarkably reduced, and then the energy feedback and shear oscillation line spectrum peak value is reduced.

The co-driver safety air bag capable of protecting the knees and the head at the same time comprises a main body assembly, and the main body assembly comprises an upper-layer bag piece, a lower-layer bag piece, two side bag pieces, an air release opening, an upper inner pull belt, a lower inner pull belt, an inflation chamber and sealing rubber; the upper-layer bag piece, the lower-layer bag piece and the two side bag pieces are sewn together through sewing threads to form the inflation chamber. The air bag is folded and then placed in the plastic cover, the air bag is fixed to a metal framework below an automobile glove box through a stud on the air generator, and when an automobile is in head-on collision, air in the air generator rushes into an inflation chamber formed by the upper-layer bag piece, the lower-layer bag piece and the two side bag pieces through an air leakage opening; at the moment, the inflation chamber is inflated, the air bag is rapidly expanded to cover the knee and head areas of the co-driver, then the risk that the passenger leans forwards to impact the center console is reduced, collision energy of the upper trunk is buffered, and the passenger is better protected in cooperation with a safety belt.