85 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 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.

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 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.

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.

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.

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.

The utility model discloses a zero-gravity seat cushion capable of returning and absorbing energy after a front collision, which comprises a seat frame skeleton, a fixing component, a connecting rod component, a driving component and a passive safety structure, wherein the passive safety structure is capable of unlocking and returning the seat cushion and absorbing collision energy after the front collision of a vehicle occurs; the passive safety structure is arranged between the hinge point of the connecting rod assembly and the fixing assembly and the hinge point of the seat frame framework and the fixing assembly, one end of the driving assembly is hinged to the connecting rod assembly, and the other end of the driving assembly is hinged to the passive safety structure. The whole passive safety structure is arranged between the driving assembly and the fixing assembly, only one passive safety structure is arranged, the structure is simplified, the passive safety structure is further arranged between the hinge point of the connecting rod assembly and the fixing assembly and the hinge point of the seat frame framework and the fixing assembly, the positions below the front end and the rear end of the cushion cannot be occupied, arrangement of parts at the front end of the cushion is not affected, and the safety of the cushion is improved. Foot space for passengers in the back row can be reserved conveniently, and meanwhile the overall height of the seat can be reduced conveniently.

The utility model relates to the technical field of automobile seats, and discloses an adjusting mechanism of a zero-gravity seat and the zero-gravity seat, and the adjusting mechanism of the zero-gravity seat comprises a base which is provided with a sliding groove and a rack; the seat cushion is movably arranged on the base; the telescopic driving part is arranged on the base and provided with a telescopic rod, the telescopic end of the telescopic rod is connected with the lower end of the zero-gravity connecting rod, the telescopic end is provided with a gear, and the gear is meshed with the rack; when the seat is switched to the zero-gravity mode, the telescopic driving piece drives the lower end of the zero-gravity connecting rod to slide along the sliding groove, and the gear rotates along the rack in an engaged mode. The zero-gravity adjusting mechanism has the advantages that during zero-gravity adjustment, the gear is matched with the rack, so that the zero-gravity adjusting mechanism has a locking function, the strength of the seat is higher during collision, the safety performance of the seat can be effectively improved, and the zero-gravity adjusting mechanism is simple in overall structure, high in strength and good in movement synchronism.

The invention discloses a multifunctional rotating bed which comprises a bed body, a baffle, a zero-gravity adjusting module, a frame rod, a base, a lifting adjusting module, a first driving module, a second driving module, a third driving module, a sensor module and a controller module. Rotatable baffles are respectively arranged on the front, back, left and right sides of the bed body; a frame rod is arranged at the bottom of the bed body, a base is arranged on the frame rod, and a zero-gravity adjusting module is arranged on the bed body; the lifting adjusting module is connected with the frame rod to drive the frame rod to ascend and descend, the second driving module is connected with the frame rod to drive the frame rod to rotate horizontally, and the third driving module is connected with the frame rod to drive the frame rod to rotate in a pitching mode. The baffles are arranged on the four sides of the bed body of the device and can be switched between the standing state and the placing state, safe and barrier-free getting-in and getting-out of the bed are considered, the zero gravity, the height, the direction and the inclination angle of the bed body can be independently or jointly adjusted, the individual requirements of different heights, different sleeping postures, different geomagnetic environments and the like are met, and the sleep experience of a user can be improved.

A high-angle-achieving automobile seat zero-gravity structure driven by an angle adjuster, comprising a cushion side plate, a zero-gravity front support, a quick return mechanism, an angle adjuster connecting plate assembly, an angle adjuster, a synchronous rod, a zero-gravity motor assembly, a slide rail support and a rear connecting rod support; the front end of the cushion side plate is hinged to the zero-gravity front support, the other end of the zero-gravity front support is hinged to the rotating part of the quick return mechanism; the fixed part of the quick return mechanism is connected to the angle adjuster as a whole; the two ends of the synchronous rod pass through the slide rail support and are connected to the angle adjuster; the zero-gravity motor assembly is used to drive the synchronous rod to rotate; the rear end of the slide rail support is hinged to the rear connecting rod support, rear cross rods are arranged between the two rear connecting rod supports; the rear cross rods are connected to the rear end of the cushion side plate, and a five-link structure is adopted, so that the height of the cushion can be adjusted, the zero-gravity posture of the seat can be adjusted and reset through the angle adjuster and the quick return mechanism, and the structure is stable and reliable, the adjustment precision is high, the response speed is fast and the like.

The zero-gravity adjusting mechanism comprises a connecting rod assembly and a driving assembly, the connecting rod assembly is hinged between the front end of a seat frame framework and a fixing assembly, the rear end of the seat frame framework is arranged on the fixing assembly, and the two ends of the driving assembly are hinged between the connecting rod assembly and the fixing assembly. When the driving assembly works, the upper end of the seat frame framework can be lifted upwards through the connecting rod assembly. The two first connecting rods are arranged on the left outer side and the right outer side of the seat frame framework, so that the zero-gravity adjusting structure is an external zero-gravity adjusting mechanism, the driving assembly is closer to the fixing assembly, cantilevers, relative to the center of each side sliding rail, of the driving assembly can be reduced, the stress of the driving assembly can be improved, and the stability of the structure is improved; space is reserved, so that the front end of the seat frame framework can contract inwards, the front end of the seat basin is convenient to design, the transverse size of the cushion is reduced, and the whole seat is convenient to arrange.

The present utility model is applicable to the technical field of sofas, and provides a seat extension device for providing a zero gravity attitude, According to the present utility model, the knees and the heart of a user can be approximately positioned on the same horizontal plane after the user lies down, so that the stress area of the human body is enlarged, all parts of the body are uniformly stressed, and the user feels in the space like floating without pressure; and the device is more cost effective.

The zero-gravity moving platform comprises a chassis assembly with a moving function, and a supporting column is vertically assembled on the chassis assembly; the rotating support assembly is assembled at the top end of the supporting column and can be folded; the counterweight assembly is assembled at one end of the rotating support assembly, and the transmission mechanism and the balance connecting rod assembly are assembled on the rotating support assembly and can pull the angle position change of the counterweight assembly to balance and balance the two folded ends of the rotating support assembly. According to the invention, two transmission modes of mechanical connecting rod transmission and chain transmission are combined to realize automatic balancing, so that the platform can measure and bear the weight of camera equipment, the physical burden of a photographer is reduced, the photographer can concentrate on shooting, the phenomena of blurring and instability caused by hand-held shaking are reduced, and the working efficiency is improved. The balance weight requirements in different states can be met, a photographer can easily achieve multi-angle shooting, and the shooting quality, safety and efficiency are improved.

The application discloses a zero-gravity seat with collision quick return, and relates to the technical field of automobile seats.The seat framework and two supports are provided with a connecting rod assembly, a driving assembly and a pretensioner at the bottom of the seat framework.The driving end of the driving assembly is connected with the connecting rod assembly and drives the seat framework to adjust the angle through the connecting rod assembly.The one end of the pretensioner is fixedly connected with the seat framework, and the tensioning end of the pretensioner is fixedly connected with the driving assembly.When the automobile collides and the seat is in a zero-gravity lying position, the sensor on the automobile detects the collision signal, the sensor sends the collision signal to the pretensioner, the pretensioner is triggered and moves the connecting rod assembly to reset through the driving assembly, so that the seat can quickly return to a traditional sitting position when the collision occurs.

The present application relates to a car seat and a car with the same. The car seat comprises a mounting bracket, a linkage mechanism arranged on the mounting bracket, a seat cushion connected with the linkage mechanism, a backrest pivotally connected with the mounting bracket and having a flat position abutting on the seat cushion, a zero-gravity position away from the seat cushion and a critical position between the flat position and the zero-gravity position, and a driving mechanism connected with the backrest to drive the backrest to switch between the flat position, the critical position and the zero-gravity position. When the backrest switches between the zero-gravity position and the critical position, the driving mechanism matches the linkage mechanism to lift or lower the seat cushion in linkage. When the backrest switches between the critical position and the flat position, the driving mechanism is disengaged from the linkage mechanism to allow the backrest to rotate independently. The car seat can realize the functions of zero-gravity and large storage at the same time, and has simple structure and significantly reduced processing cost.

The invention discloses a zero-gravity rotating shaft of a moxibustion product. The zero-gravity rotating shaft comprises a rotating shaft assembly, a left arm assembly, a right arm assembly and a shell assembly. The rotating shaft assembly comprises a one-way bearing, a center sleeve, a gasket set and a damping rotating shaft. The one-way bearing is arranged on the outer side of the center sleeve in a sleeving mode, the damping rotating shaft is located in the center sleeve, the two ends of the damping rotating shaft extend out of the center sleeve, and the gasket set is located in the center sleeve and arranged on the damping rotating shaft in a sleeving mode. The gravity of turning, descending and angle adjusting of the product is borne by the rotation stopping direction of the damping rotating shaft and the one-way bearing, the product rotates and ascends to adjust the angle by means of the rotation direction of the one-way bearing, operation is more labor-saving, the product or equipment does not need to be carried with much effort, and inclination and damage of the product are avoided.

The invention discloses a zero-gravity posture linkage leg support structure, and belongs to the technical field of seat leg supports.The zero-gravity posture linkage leg support structure comprises a seat cushion, a back cushion is arranged on one side of the top of the seat cushion, pushing plates are symmetrically and fixedly installed at the bottom of the back cushion, a first pushing groove is formed in the bottom of each pushing plate in a penetrating mode, and the seat cushion and the pushing plates are rotationally connected through rotating shafts; according to the device, the angle adjuster, the pushing sliding strip, the pushing frame, the pushing top frame and the second rotating top strip are arranged, the first mounting base forms pulling force on the second rotating top strip, the second rotating top strip is driven to rotate around a connecting pin shaft of the first rotating top strip, and then the first rotating top strip is pulled to rotate around the second mounting base; when the first rotating top strip and the second rotating top strip are pulled to gradually tend to be parallel, the foot supporting plate is pushed to extend out of the leg supporting plate, the angle between the back cushion and the seat cushion is adjusted, the angle between the leg supporting plate and the seat cushion is adjusted, and the length of the foot supporting plate extending out of the leg supporting plate is adjusted in a linkage mode, operation steps are simplified, and the adjustment process of the zero-gravity posture is more convenient.