138 results about "Zero gravity" patented technology

A five-degree-of-freedom zero-gravity simulation suspension device for a space complex unfolding track belongs to the technical field of space mechanism zero-gravity simulation unfolding and mainly comprises a rocker arm frame mounting plate, a rocker arm frame assembly, a spring suspension assembly, a guide rail fine adjustment assembly, a movable constant-force suspension assembly and a mass center point connecting assembly. Wherein the guide rail fine adjustment assembly is used for adjusting the levelness of a guide rail in the movable constant-force hanging assembly. During installation, the rocker arm frame assembly is installed on the rocker arm frame installation plate through screws, the three spring hanging assemblies are installed on the rocker arm frame through the rocker arm frame embracing rings, the movable constant-force hanging assembly is installed on the rocker arm frame through the three guide rail fine adjustment assemblies, and the mass center point connecting assembly is installed on the movable constant-force hanging assembly through the spring buckles. According to the invention, the movable constant-force hanging assembly is added to realize gravity follow-up unloading in the vertical direction, and the mass center connecting assembly containing the spherical hinge assembly is superposed for use, so that the zero-gravity unfolding test requirement of a complex mechanism with five-degree-of-freedom unfolding in space can be met.

The invention discloses a zero-gravity self-adaptive adjustment headrest which comprises a headrest body arranged on a sliding mechanism, a guide mechanism arranged on the headrest body, a limiting piece arranged on the sliding mechanism and a gravity ball which is used for limiting the limiting piece when the headrest body is located at a first position and is movably arranged on the guide mechanism. After the gravity ball is separated from the limiting piece, the headrest body can move downwards from the first position to the second position. According to the zero-gravity self-adaptive adjusting headrest, a seat is unfolded in a zero-gravity mode, meanwhile, the gravity ball slides to avoid the blocking point, the headrest slides downwards, the downward adjusting stroke of the position of the headrest is increased, the cost can be reduced through the structure, and the using comfort and experience of the seat are improved. The invention further discloses a vehicle.

The invention relates to a zero-gravity seat framework driving and passive safety method. The method comprises the steps that S1, the sitting posture of a zero-gravity seat is controlled; s2, carrying out passive safety control on the zero-gravity seat in a zero-gravity posture; step S21, when the vehicle is collided or the vehicle radar early warns that the collision is about to occur, a seat controller is utilized to confirm the current sitting posture of the seat; s22, when the seat controller in the step S21 detects that the seat is in the zero-gravity posture, the seat controller is used for controlling a seat cushion rapid return mechanism to rapidly return to the standard posture, a cushion air bag is ignited, and a secondary locking mechanism is used for preventing the seat cushion rapid return mechanism from rebounding; s23, when the seat controller in the step S21 detects that the seat is in the standard posture, the seat cushion quick return mechanism is not started; the vehicle passive safety device has the advantage that the vehicle passive safety device can be ensured to play a role by quickly returning the seat in the zero-gravity posture.

The utility model relates to a backrest quick return mechanism and a cushion quick return mechanism based on a zero-gravity seat, which comprise a backrest framework positioned at the back of the seat and a cushion framework positioned at the cushion of the seat, and the backrest framework is rotatably connected onto the cushion framework through angle adjusters on two sides. A brushless angle adjusting motor used for adjusting the angle of an angle adjuster is installed on the backrest framework, a backrest quick return mechanism is installed between the backrest framework and the angle adjuster, the rear end of the cushion framework is hinged to a bottom seat sliding rail, and the angle of the cushion framework is adjusted at the front end of the cushion framework through a front angle adjusting mechanism. The seat cushion quick return mechanism is mounted on the front angle adjusting mechanism, and the backrest quick return mechanism and the seat cushion quick return mechanism are the same in structure. The seat has the advantages that through the quick return mechanism, when the seat is collided at the zero-gravity posture position, the backrest and the seat cushion can quickly return, so that the restraint protection on passengers is improved, and the injury caused by collision is reduced.

The utility model discloses a zero-gravity cushion with a quick return structure, which comprises the quick return structure arranged below a seat frame skeleton, and the quick return structure comprises a locking component and an unlocking component which are arranged on any one of the left side and the right side of the rear end of the seat frame skeleton. The locking assembly is used for ensuring that the seat frame framework can be subjected to zero-gravity adjustment in a normal state, and the unlocking assembly is used for unlocking the locking assembly to enable the seat frame framework to rapidly return under the action of gravity after the seat frame framework in the zero-gravity state collides with the front of an automobile. A quick return structure is arranged at the rear end of the seat frame framework, so that the seat frame framework can quickly return after being collided forwards when being in a zero-gravity posture, the restraint capability on a passenger is improved, and the impact on the passenger is absorbed, so that the injury to the passenger is reduced; the whole quick return structure is arranged on any one of the left side and the right side of the rear end of the seat frame skeleton, the structure is simplified, the position below the front end of the seat frame skeleton is not occupied, and arrangement of parts at the front end of the seat frame skeleton is not affected.

A sofa frame which does not lean against a wall when in a zero-gravity state, the sofa frame comprising a bottom base (3), a first driving mechanism (1), a second driving mechanism (2), a leg support assembly (4), a backrest adjustment assembly (7), a movable base (5) which is slidably connected to the bottom base (3), and a push rod (6) which is arranged at an output end of the first driving mechanism (1), wherein the push rod (6) is connected to the movable base (5); and the housing of the first driving mechanism (1) is hinged to the bottom base (3), the housing of the second driving mechanism (2) is hinged to the push rod (6), the leg support assembly (4) is hinged to both the output end of the second driving mechanism (2) and one end of the movable base (5), and the backrest adjustment assembly (7) is hinged to both the other end of the movable base (5) and the bottom base (3). The first driving mechanism (1) can drive the backrest adjustment component (7) to move in a direction away from a wall, so as to facilitate the adjustment of the zero-gravity state of the sofa frame. The movements of the movable base (5) and the leg support assembly (4) do not interfere with each other, and the second driving mechanism (2) drives the leg support assembly (4) to fold, such that same can adapt to various application scenarios, thereby improving the practicality.

The invention relates to an anti-impact assembly and a zero-gravity seat, the anti-impact assembly is used for being connected with a seat body of a vehicle, and the anti-impact assembly comprises a bottom plate; a pitching substrate; the motor is respectively connected with the bottom plate and the pitching substrate, and the motor is used for driving the pitching substrate to move; a radar system; a vision system; the safety system is electrically connected with the motor and comprises a sensor module and a control module; when the vehicle runs normally, the control module adjusts the seat body into a first posture through the motor; when the sensor module detects that the vehicle is braked emergently and / or has a collision risk, the control module adjusts the seat body into a second posture through the motor; in the first posture, a first pitching angle is formed between the bottom of the seat body and the bottom plate; and in the second posture, a second pitching angle is formed between the bottom of the seat body and the bottom plate. The posture of the seat can be automatically adjusted, and the safety of passengers in the vehicle can be guaranteed in an emergency.

The embodiment of the invention provides a trigger and a zero-gravity seat, the trigger comprises a shell, a piston and a gas generator, and the piston comprises a mounting part accommodated in the shell and a fixing rod extending out of the shell; the fixing rod can move between a first position for locking the first component and the second component and a second position for unlocking the first component and the second component, and the gas generator is configured to push the piston to enable the fixing rod to move from the first position to the second position or from the second position to the first position after being actuated; the gas generator is fixed at one end of the mounting part, the gas outlet end faces the fixing rod, a circulating hole is formed in the mounting part, and a sealed cavity is formed between the gas outlet end and the shell. In a normal state, the fixing rod is located at the first position, the seat backrest is in a locking state, when a vehicle collides, the gas generator is ignited, the piston is pushed to enable the fixing rod to move to the second position, and the seat backrest rotates to a normal sitting posture along with the upper half body of a human body under the action of inertia force.

A seat assembly for use by an occupant in an automotive vehicle includes a seat cushion pivotally coupled to a seat base at a cushion pivot. The seat assembly further includes a seat back pivotally coupled to the seat cushion at a lower recline pivot. A tilt mechanism is further coupled between the seat cushion and the seat base for pivoting of the seat cushion at the cushion pivot to move the seat assembly to and from a zero-gravity position. A first line extends vertically through an H-point of the occupant when the seat assembly is disposed in a design position. The lower recline pivot is positioned under the H-point approximately on the first line and the cushion pivot is positioned forward of the first line to facilitate optimal comfort for the occupant when the seat assembly is disposed in the zero-gravity position.

This invention discloses a zero-gravity seat collapse mechanism, including a base and a seat frame located on the upper side of the base. The rear end of the seat frame is rotatably connected to the base, and the front end of the seat frame is rotatably connected to an upper linkage component. The front end of the base is rotatably connected to a lower linkage component. The upper and lower linkage components are hinged to each other by a pin. The key feature is that a collapse plate is fixedly attached to one side of the upper linkage component. The collapse plate has a lower connecting hole, an upper collapse channel, and a weakening portion formed between the connecting hole and the collapse channel. The upper linkage component has a strip-shaped clearance hole, and both the connecting hole and the collapse channel are exposed within the strip-shaped clearance hole. The beneficial effect of this invention is that when a car collision occurs, the seat can instantly return from zero-gravity mode to a normal sitting posture, improving seat safety.

A zero-gravity seat with a single driving mechanism comprises a backrest assembly, a seat frame assembly, a sliding rail assembly and a synchronous driving mechanism. Left / right connecting rod connecting plates are arranged at the lower ends of the backrest assembly left / right angle adjuster upper connecting plates respectively. The seat frame assembly is hinged to a sliding rail upper connecting plate of the sliding rail assembly; the synchronous driving mechanism comprises a left / right connecting rod mechanism; the left connecting rod mechanism comprises a first left connecting rod, a second left connecting rod and a third left connecting rod; the rear end of the first left connecting rod is hinged to the left connecting rod connecting plate, the front end of the first left connecting rod is hinged to the rear end of the second left connecting rod and the rear end of the third left connecting rod, the front end of the second left connecting rod is hinged to a sliding rail upper connecting plate of the sliding rail assembly, and the front end of the third left connecting rod is hinged to the front end of a left side plate of the seat frame assembly. According to the seat, on the basis that an existing five-connecting-rod mechanism is reserved, synchronous driving adjustment of the seat and the backrest is achieved by improving the connecting rod structure and simplifying the driving mechanism, the structure is simple, the occupied space is small, the unfolding time is short, and meanwhile the requirements for comfort of different passengers can be met.

A method and system of instruments are disclosed for characterizing conditions within an aircraft during a flight designed to minimize gravitational effects. Scientific research can require experimentation under very low G or zero G conditions, and such conditions can be achieved in an aircraft using a specially designed trajectory to mimic freefall. Certain data can be collected during the critical portion of the trajectory to assess atmospheric, biometric, and localized information to better assess the results of the experiments.

The application discloses a zero-gravity cable and system for underwater equipment recovery, the zero-gravity cable comprising a cable, one end of the zero-gravity cable being used for connecting a docking robot, the other end of the zero-gravity cable being used for connecting a parent body, the docking robot being used for capturing the underwater equipment, so as to realize recovery of the underwater equipment; the cable is used for supplying power to the docking robot; the zero-gravity cable further comprises a buoyancy structure, the buoyancy structure comprising an air-filled cavity, the buoyancy structure being used for making the zero-gravity cable in a zero-gravity state when the zero-gravity cable is in water, the zero-gravity cable being subjected to buoyancy equal to gravity, so as to avoid the influence of gravity while realizing power supply to the docking robot, reduce the load of the docking robot, and ensure underwater equipment recovery.

A zero gravity and zero wall sofa frame, comprising a base 3, seat frame 4, first drive mechanism 1, backrest assembly 7, foot rest assembly 6, push rod 5 and second drive mechanism 2. The seat frame

According to the high-precision large-scale multi-degree-of-freedom unfolding arm assembling and adjusting method, the influence of ground gravity on the unfolding precision of the unfolding arm can be effectively eliminated, and the ten-meter-magnitude unfolding arm assembling and adjusting precision can reach one hundredth magnitude. According to the method, the process of adjusting the position and posture of the tool in advance is added, the joint position of the unfolding arm is controlled within a certain range, then fine adjustment is conducted, the assembling and adjusting efficiency is improved, meanwhile, the six-degree-of-freedom parallel mechanism is used for being connected with the joint of the unfolding arm for posture adjustment, and the joint is rapidly and conveniently adjusted to the theoretical position; on the basis of assembly and adjustment in a single posture, an iteration step for eliminating zero-gravity unloading errors is added, the unfolding arm is subjected to gravity unloading in two mutually perpendicular directions, 100% unloading of the unfolding arm in the direction perpendicular to the gravity is achieved, assembly precision retest and adjustment are repeatedly conducted in the two gravity unloading states, and the assembly precision of the unfolding arm is accurately adjusted. The assembling effect highly consistent with the on-orbit zero-gravity state is achieved, and the assembling and adjusting precision of the unfolding arm is improved.

The application provides a ground zero-gravity simulation device for astronaut on-orbit maintenance, which comprises a truss support system, a maintenance tool zero-gravity support system, an astronaut suit zero-gravity support system, an astronaut foot limiting support system, a space station cabin simulator and a six-degree-of-freedom mechanical arm, and the output end of the six-degree-of-freedom mechanical arm is connected to the space station cabin simulator, and the six-degree-of-freedom mechanical arm is used for simulating different maintenance postures of a space station in orbit. The application has the beneficial effects that the working state of an astronaut for maintaining peripheral equipment of a space station in different postures of the space station is simulated on the ground. The application has important significance for training astronauts for space maintenance operation. Furthermore, the application is the first device in the world which can simulate the zero-gravity state of astronauts for maintaining different postures of a space station on the ground.

The invention provides a pneumatic suspension system for simulating a zero-gravity environment and a control method. The pneumatic suspension system comprises a supporting assembly, a suspension assembly and a control system. The supporting assembly comprises a box, a top plate and a spindle, the top plate is arranged in the box, vertical guide rails are arranged on two sides of the box, the spindle penetrates through the top plate and the box bottom, and the top is used for hanging a tested object. The suspension assembly comprises a beam, a cylinder barrel, an air floatation piston, a piston rod and an air source, the beam slides along the guide rail, an airflow channel is arranged in the beam and connected with the air floatation bearing, the air floatation piston is arranged in the cylinder barrel, the cylinder barrel is divided into an upper cavity and a lower cavity, the upper cavity is communicated with the atmosphere, the air source supplies air to the lower cavity, and the two ends of the piston rod are connected with the air floatation piston and the beam respectively. And the control system controls the gas transmission work of the gas source. According to the pneumatic suspension system, friction of the system is effectively reduced, dynamic self-adaptive balance is achieved through the control system, and therefore the more accurate and stable suspension effect is provided.

To achieve efficient cleaning under a microgravity environment.SOLUTION: A cleaning device cleans an object to be cleaned by discharging cleaning water stored in a tank 20 through a hose 21 out of pipes 11, 12 provided in a discharge section 10. In order to prevent the discharged water from dispersing in a zero-gravity environment, the surroundings of the object are covered with a cover 40, and the discharged water is sucked with a suction device 32 and collected in a collection tank 30 through a hose 31. The discharge section 10 includes two pipes 11, 12 arranged in parallel for discharging water and has a swirl flow generation mechanism that imparts a circumferential velocity component to the main water flow so that the water can be discharged as a swirl flow and that rotates the pipes 11, 12 around their axes to generate the swirl flow. This enables the generation of swirl flow even under a microgravity environment, thereby improving cleaning efficiency.SELECTED DRAWING: Figure 1

The application relates to a zero-gravity seat adjusting mechanism and relates to the technical field of automobile seats, and aims to solve the problems that the existing automobile seat structure is single, the adjusting range is small, the discomfort brought by the earth's gravity is difficult to inhibit, and the riding experience is poor. The zero-gravity seat adjusting mechanism comprises a supporting plate and a seat body, the supporting plate comprises a horizontal plate and an inclined plate which are connected with each other, the horizontal plate is provided with a rotating support for mounting the seat body, the rotating support is provided with a driving piece for driving the seat body to rotate; one side of the seat body facing the inclined plate is connected with an adjusting pipe, the adjusting pipe is slidably connected with an adjusting rod, one side of the inclined plate facing the adjusting rod is provided with an adjusting groove for the adjusting rod to abut against and slide, the adjusting rod is hollow, and the adjusting rod is provided with a reset piece for driving the adjusting rod and the adjusting pipe to reset. The application has the effects of providing a zero-gravity riding experience for the riders, protecting the health of the human body and improving the riding comfort.

The zero-gravity pressure head adjustable structure comprises an adjusting plate, a sliding mounting base is arranged on the adjusting plate, a sliding mounting block is arranged on the sliding mounting base, and a top plate is arranged at the upper end of the sliding mounting base. A first adjusting bolt and a second adjusting bolt which penetrate through the top plate are arranged on the top plate, the first extension spring and the second extension spring are arranged in parallel, and one end of the first extension spring and one end of the second extension spring are connected with the bottom of the first adjusting bolt and the bottom of the second adjusting bolt respectively. The other end of the first extension spring and the other end of the second extension spring are both connected with the sliding installation block, the pressure detection assembly is arranged between the sliding installation base and the sliding installation block, and by arranging the first extension spring and the second extension spring, the self gravity of the sliding installation block and components below is balanced through the tension of the first extension spring and the second extension spring; a zero-gravity state is realized, and the interference of the dead weight of a structural part on the actual pressure of a product is effectively eliminated.

A zero gravity and zero wall sofa frame, comprising a base, a seat frame, a first drive mechanism, a backrest assembly, a foot rest assembly, a push rod and a second drive mechanism, wherein the seat frame is movably arranged on the base, the base and the seat frame are hinged with the backrest assembly, the seat frame and the push rod are hinged with the foot rest assembly, and the second drive mechanism is connected with the push rod to drive the push rod to move back and forth relative to the seat frame. Since the sofa frame is provided with the first drive mechanism and the second drive mechanism, the foot rest assembly and the seat frame can act respectively during the state transition of the sofa frame to make the movement of the sofa consistent with the body movement habit to provide a better user experience.

The invention discloses a reinforcing sliding rail for a zero-gravity seat, relates to the technical field of automobile seats, solves the technical problem that stress concentration easily occurs in a connecting area of a seat, a sliding rail and other parts due to the fact that inertia force during collision becomes main acting force, and comprises two reinforcing sliding rail assemblies and a driving assembly which are oppositely arranged. The reinforcing sliding rail assembly comprises an upper sliding rail cohesion plate and a lower sliding rail cohesion plate, and the upper sliding rail cohesion plate and the lower sliding rail cohesion plate are each of a strip-shaped structure with a groove. An upper sliding rail is fixedly installed on the inner side of the bottom of the upper sliding rail cohesion plate, and a lower sliding rail is fixedly installed on the inner side of the top of the lower sliding rail cohesion plate. According to the rail, the overall strength of the sliding rail is improved, the sliding rail is effectively prevented from being bent when a zero-gravity seat is collided, the reinforcing structure of the sliding rail reinforcing plate and the long-strip-shaped groove is adopted, application concentration during collision is dispersed, the overall anti-bending capacity is improved, rigid positioning at the moment of collision is achieved, and sliding rail failure caused by posture deviation is avoided.

An adjustment control method and system for a zero-gravity seat, and a vehicle. The method comprises the steps of: on the basis of the travel speed and distance of an adjustment component of a zero-gravity seat, determining travel durations required for the adjustment component to travel to different positions; on the basis of the travel speed and distance of an interference component corresponding to the adjustment component, determining travel durations required for the interference component to travel to different positions; and with the goal that the interference component does not come into contact with the adjustment component, determining an adjustment start time of the interference component on the basis of the travel durations of the adjustment component and the travel durations of the interference component.

According to the economical zero-gravity seat, the seat is controlled to be unfolded to reach a zero-gravity posture in a mechanical structure linkage mode, compared with a seat controlled through electric adjustment, the seat is more reliable in structure, the discomfort caused when a traditional zero-gravity seat excessively abuts against the waist can be eliminated through sitting and leaning mechanical linkage adjustment, and the safety of the seat is improved. The mechanical linkage structure can be electrically set by using an electric regulator, so that the comfortable experience is further improved; in addition, the seat is controlled to be unfolded in a mechanical linkage mode, compared with an electric adjusting controller for controlling the seat, operation is easy, the mechanism is more reliable, a large amount of motor and controller development cost is saved, and economical efficiency is improved to a certain degree.

The present invention relates to an effective gravity control device that implements a zero gravity, microgravity, low gravity, or weighted gravity state of an internal module based on a moving external module. In accordance with an embodiment of the present invention, an effective gravity control device that implements a zero gravity, microgravity, low gravity, or weighted gravity state of an internal module mounted in a moving external module includes the external module in which a movement space of the internal module is provided and of which at least one physical quantity related to movement is controlled, the internal module moving independently from the external module within the movement space by an external force transmitted through the external module, and a position detection sensor provided at at least one inner end of the external module and detecting a position of the internal module in the movement space.

This invention discloses a high-precision dynamic compensation algorithm for gravity disturbance torque of a dumbbell-shaped satellite simulator, relating to the field of spacecraft ground zero-gravity simulation experiments. Based on a high-precision dynamic compensation system for gravity disturbance torque of a dumbbell-shaped satellite simulator, a camera field-of-view coordinate system and a simulator body coordinate system are established. A control torque for the dumbbell-shaped simulator is established in the camera field-of-view coordinate system, and the three-axis attitude of the dumbbell-shaped simulator is maintained and controlled. The gravity disturbance torque is calculated in real time and dynamically compensated. The dynamic compensation algorithm provided by this invention can continuously and automatically calculate the compensation torque and obtain the movement distance of the counterweight, performing real-time compensation for the gravity disturbance torque, ensuring that the simulator's center of mass coincides with the center of the ball bearing, greatly improving the accuracy and reliability of spacecraft ground micro-low gravity simulation experiments.