12results about How to "Increase buffer distance" patented technology

This application relates to a method, device, computer equipment, and medium for active rearward sliding safety control of automotive seats. The method includes: collecting vehicle state data and surrounding traffic environment data; constructing driving environment time-series data including multiple frames of driving environment data based on the vehicle state data and surrounding traffic environment data; inputting the driving environment time-series data into a collision time prediction model to obtain the collision time; detecting whether safety control conditions are met based on the collision time, vehicle speed, and the relative speed of the target; responding to the satisfaction of safety control conditions, determining the relative collision speed based on the collision time, vehicle speed, and target relative speed; determining the seat rearward sliding distance based on the relative collision speed; determining the rearward sliding seat based on the current occupant status; and controlling the rearward sliding seat to slide back by the specified distance when a collision occurs. This method improves the coordinated energy absorption efficiency of the restraint system and the vehicle body structure, effectively reducing injuries to occupants during a vehicle collision.

The application relates to the technical field of textiles, and discloses an anti-skid and wear-resistant modified functional sports sock and a preparation method thereof, which comprises the following steps: blending long-staple cotton fibers, nylon fibers and spandex to obtain composite yarn; braiding the composite yarn into a sock blank, and then performing setting and soft finishing to obtain a sports sock embryo; applying an anti-skid sheet material to the bottom of the sports sock embryo, and then performing solidification to obtain the anti-skid and wear-resistant modified functional sports sock. The water-based polyurethane resin is used as a base material, polyester fibers and an anti-skid and wear-resistant additive are added, the anti-skid sheet material formed by compounding dodecyl dimethyl ammonium chloride, a dispersing agent and a stabilizer is applied to the bottom of the sports sock embryo, so that the sports sock has high anti-skid and wear-resistant performance, and the sports sock still has high anti-skid and wear-resistant performance after being used and washed for many times.

The utility model relates to a limiting buffer for a rail robot. Comprising a top mounting plate fixedly connected with a track and a bottom limiting plate used for triggering a limiting switch on the track robot, a front connecting frame is arranged between the front portions of the top mounting plate and the bottom limiting plate, and a rear connecting frame is arranged between the rear portions of the top mounting plate and the bottom limiting plate; the top and the bottom of the front connecting frame are hinged to the front portion of the top mounting plate and the front portion of the bottom limiting plate respectively, the top and the bottom of the rear connecting frame are hinged to the rear portion of the top mounting plate and the rear portion of the bottom limiting plate respectively, and the top mounting plate, the bottom limiting plate, the front connecting frame and the rear connecting frame form a four-connecting-rod structure. And the torsion spring provides elastic force for the four-connecting-rod structure. The utility model provides a limiting buffer for a rail robot, which provides limiting and buffering functions for the rail robot, and when the rail robot reaches a specific position, the rail robot is prevented from colliding with a main body part of the rail robot, and meanwhile, the rail robot obtains a continuous and stable limiting signal.

The application provides a dangerous area recognition method and device based on machine vision, and relates to the technical field of dangerous area recognition.The application obtains monitoring image data of a danger source in a historical monitoring area, forms a training image set through preprocessing, constructs a danger recognition model, and trains the danger recognition model, performs danger source recognition on real-time monitoring image data according to the trained danger recognition model, demarcates a basic danger area according to a basic safety distance set according to the recognition result, calculates a danger coefficient of each type of static area according to historical data of each type of static area, adds an early warning distance, calculates a dynamic danger coefficient according to historical data of each type of dynamic equipment, calculates a buffer distance in front of a moving direction, obtains historical danger accident data of a to-be-recognized area, extracts an equipment feature set, and identifies a future safety state of a sub-area through a Bayesian prediction model.

This utility model discloses an ash collection device for the convection zone of a waste heat boiler, including a cold ash hopper. A sealing sand trough is provided above the cold ash hopper, and the two are connected by a flange. A water-cooled wall is provided at the top of the sealing sand trough, and a flexible connection is provided at the bottom of the cold ash hopper. A scraper conveyor is provided below the flexible connection, and the two are fixedly connected. This utility model increases the buffer distance for coke impact on the cold ash hopper by changing the connection method and structure between the cold ash hopper, the upper water-cooled wall, and the lower scraper conveyor, thereby preventing a large amount of coke from impacting the water-cooled fireplace tubes and the scraper conveyor chain, eliminating the risk of deformation and leakage of the water-cooled fireplace tubes or damage to the scraper conveyor. After completion, it can achieve the goal of safe and stable operation of the waste heat boiler scraper conveyor and water-cooled wall. It is easy to operate and highly practical.

The application relates to the technical field of vacuum heat collecting tubes, in particular to a solar vacuum heat collecting tube with double expansion joints, which comprises a vacuum heat collecting tube main body, the outer side of the vacuum heat collecting tube main body is provided with two groups of connecting pieces, one end of the connecting piece close to the vacuum heat collecting tube main body is rotationally connected with two groups of limiting pieces, one end of the limiting piece and the connecting piece close to the vacuum heat collecting tube main body is rotationally connected with a buffer strip, one end of the connecting piece close to the limiting piece is fixedly connected with a containing block, a moving groove is arranged in the containing block, a moving rod is slidably connected in the moving groove, one end of the moving rod away from the moving groove is rotationally connected with the limiting piece outside the containing block, a sliding rod is fixedly connected in the moving groove, a first compression spring is arranged on the outer side of the sliding rod, the outer side of the vacuum heat collecting tube main body is provided with an outer expansion joint, compared with the existing vacuum heat collecting tube, the overall practicability of the vacuum heat collecting tube can be improved through the design.

The utility model provides a waste heat boiler dry bottom hopper device which comprises a dry bottom hopper, a sealing sand tank is arranged above the dry bottom hopper, the dry bottom hopper and the sealing sand tank are connected through a flange, a water cooling wall is arranged at the top of the sealing sand tank, a flexible connector is arranged at the bottom of the dry bottom hopper, a scraper conveyor is arranged below the flexible connector, and the scraper conveyor and the sealing sand tank are fixedly connected. By changing the connection mode and structure of the dry bottom hopper, the water-cooled wall above the dry bottom hopper and the scraper conveyor below the dry bottom hopper, the buffer distance of falling coke impacting the dry bottom hopper is increased, the phenomenon that a large number of coke blocks impact equipment such as water-cooled wall furnace tubes and scraper conveyor chains is prevented, the risk that the water-cooled wall furnace tubes deform and leak or the scraper conveyor is damaged is eradicated, and the service life of the dry bottom hopper is prolonged. After manufacturing is completed, the purpose of safe and stable operation of the waste heat boiler scraper conveyor and the water cooling wall can be achieved, operation is easy, and practicability is high.

The utility model relates to the technical field of motor stator and rotor iron cores, in particular to a shaping device for motor stator and rotor iron core processing, which comprises a working table main body, a first pressing plate is arranged at the top of the working table main body, and an attaching assembly is arranged at the top of the first pressing plate. A second pressing plate is slidably connected to the top of the workbench body and located below the first pressing plate, a guide groove is formed in the outer side of the second pressing plate and located at the top of the workbench body, and a guide frame is fixedly connected to the end, away from the second pressing plate, of the guide groove. The end, close to the second pressing plate, of the top of the workbench body is fixedly connected with a discharging frame. The attaching assembly is used for conducting buffering treatment between the first pressing plate and the iron core, the attaching assembly is composed of a movable plate, a rotating block, a plurality of sets of telescopic rods, a sliding block, a fixed block and a limiting ball, and compared with an existing shaping device, the overall practicability of the shaping device can be improved through the design.

The utility model relates to the technical field of bridge pier protection, in particular to a road bridge pier safety protection facility which comprises a bridge pier body, fixed bearings are fixedly connected to the upper side and the lower side of the outer wall of the bridge pier body, a rotating cylinder is fixedly connected to the outer walls of the two fixed bearings, and fixed ring plates are fixedly connected to the top face and the bottom face of the rotating cylinder. And a plurality of first connecting shafts are fixedly connected between the two fixed ring plates. Compared with the prior art, the damping shock absorber has the advantages that through the combined structure of the damping shock absorbers, the swing arm and the rotating roller, after a vehicle collides with the outer protective cylinder, the swing arm rotates towards one side to press the damping shock absorbers, buffering is achieved, the buffering distance can be increased through supporting of the damping shock absorbers, and the buffering effect is improved; and meanwhile, through rotating connection of the fixed bearings and rotating connection of the outer protective cylinder and the rotating rollers, the vehicle is guided to slide towards one side after being collided, the impact force of the vehicle is dispersed to one side of the pier, the impact force is prevented from directly colliding with the pier, and the protection effect is improved.

The utility model discloses a rapid cooling device for a waste rejecting roller way of a roller hearth type heating furnace, which comprises an upper surface cooling mechanism, a lower surface cooling mechanism, an upper surface cooling mechanism and a lower surface cooling mechanism, wherein the upper surface cooling mechanism is arranged at the upper part of a waste rejecting plate blank on the waste rejecting roller way; the lower surface cooling mechanism is arranged at the lower part of the waste removing plate blank on the waste removing roller way; the upper surface cooling mechanism and the lower surface cooling mechanism are both connected with a cooling water supply system.

The embodiment of the invention provides a wafer film pasting method and device.The method comprises the steps that a wafer protection film is provided, and the size of the wafer protection film is larger than that of a wafer; placing the wafer protection film, and enabling the shape of the edge area of the wafer protection film to be matched with the surface, which does not need to be protected, of the wafer; the wafer is placed, so that the surface, which does not need to be protected, of the wafer is attached to the edge area of the wafer protection film; and carrying out film pasting treatment to enable the wafer protection film to be attached to the surface, needing to be protected, of the wafer and the surface, not needing to be protected, of the wafer. By the adoption of the scheme, the possibility that a wafer protection film falls off in the chemical plating process can be remarkably reduced, and the problem of chemical plating solution permeation is effectively solved.

The invention discloses a bridge anti-collision system and method based on unmanned aerial vehicle early warning navigation, and belongs to the field of bridge safety monitoring. The system comprises an AIS device used for obtaining AIS data of a ship; the unmanned aerial vehicle carries a laser tester; the laser receiver is arranged on the bridge and used for receiving the laser emitted by the laser tester so as to calculate the distance between the unmanned aerial vehicle and the laser receiver; the control module is used for acquiring real-time point location information of the ship according to the AIS data, judging whether the risk of colliding with the bridge pier exists or not after detecting that the ship enters the collision high-risk area, if yes, controlling the unmanned aerial vehicle to fly to the bow of the ship, calculating the yaw azimuth of the ship in combination with the AIS data and information fed back by the laser receiver, and outputting the yaw azimuth. And guiding the ship to correct the course through the unmanned aerial vehicle. Aiming at a ship with a collision risk, the unmanned aerial vehicle and the laser receiver are used for assisting in guiding the ship to correct the course, an all-weather autonomous early warning navigation function can be realized, and the reliability and the effectiveness level are relatively high.