1527 results about "Parallelogram" patented technology

The invention relates to a composite microprism reflective film integrated with various triangular pyramids and a mold manufacturing method thereof, the surface of the microprism reflective film is formed by an array of identical parallelogram unit bodies, and each parallelogram unit body is composed of three identical triangular pyramids A, three identical triangular pyramids B, a triangular pyramid C and a triangular pyramid D, the bottom surfaces of the triangular pyramid A, the triangular pyramid B, the triangular pyramid C and the triangular pyramid D are identical equilateral triangles, the inclination angles of the three pyramid surfaces of the triangular pyramid A are alpha / 2 and alpha / 2 and beta / 2 + respectively, the inclination angles of the three pyramid surfaces of the triangular pyramid B are alpha / 2 and alpha / 2 and beta / 2-respectively, the inclination angles of the three pyramid surfaces of the triangular pyramid C are beta / 2 + respectively, and the inclination angles of the three pyramid surfaces of the triangular pyramid D are beta / 2-respectively. Greater than zero. According to the method, the performance under different application conditions can be reasonably optimized, so that wide-angle performance improvement and optimization and balance of overall comprehensive performance can be realized.

The invention belongs to the technical field of parallel robots, and particularly relates to a four-degree-of-freedom parallel mechanism with an offset angle, which comprises a fixed platform, transmission branch chains are respectively arranged on the left side and the right side of the fixed platform, and parallelogram structures with offset angles are fixedly arranged at the upper ends of the two transmission branch chains; and a movable platform is connected between the two parallelogram structures with the offset angles. According to the four-degree-of-freedom parallel mechanism, a unique 4-2-1 structure is adopted, two driving branch chains are driven to act through four driving moving joints composed of two first sliding blocks and two second sliding blocks, three-dimensional translational motion and one-dimensional rotating motion of one movable platform are achieved, the working space of the four-degree-of-freedom parallel mechanism can extend infinitely in the direction of a guide rail, and the working efficiency of the four-degree-of-freedom parallel mechanism is improved. The device is good in movement stability, compact in structure and high in rotation flexibility.

The invention relates to a microprism reflective film combined by three kinds of triangular pyramids and a manufacturing method of a mold of the microprism reflective film, the surface of the microprism reflective film is formed by an array of identical parallelogram unit bodies (1), each parallelogram unit body (1) is composed of four identical triangular pyramids A, one triangular pyramid B and three identical triangular pyramids C, the directions of the four triangular pyramids A and the directions of the three triangular pyramids C and the triangular pyramids B form 180 degrees, and the three triangular pyramids C and the triangular pyramids B are arranged among the four triangular pyramids A in a staggered manner; the bottom surfaces of the triangular pyramids B and C are the same equilateral triangles, the inclination angles of the three pyramid surfaces of each triangular pyramid A are alpha / 2, the inclination angles of the pyramid surfaces of the triangular pyramids B are beta / 2, and the inclination angles of the three pyramid surfaces of the triangular pyramids C are alpha / 2, alpha / 2 and beta / 2 respectively. According to the method, the performance under different application conditions can be reasonably optimized, so that wide-angle performance improvement and optimization and balance of overall comprehensive performance can be realized.

The invention discloses a parallelogram regular machine arrangement-cable joint optimization method and system for a wind power plant. The method comprises the steps of obtaining an area range of the wind power plant and the number of wind turbine generators, randomly generating shape variables of a parallelogram rule, establishing a shape variable initial population of a genetic algorithm, and generating a wind power plant generator arrangement scheme; based on a wind power plant unit arrangement scheme, establishing a booster station initial population of a genetic algorithm; the method comprises the following steps: by taking maximized output power and minimized cable cost as optimization objectives, generating a new shape variable of a parallelogram rule and a booster station coordinate, forming an optimization population, performing multi-objective optimization on a wind power plant unit arrangement scheme and a booster station position scheme based on a genetic algorithm to obtain a multi-objective optimized Pareto leading edge, and performing multi-objective optimization on the wind power plant unit arrangement scheme and the booster station position scheme. And selecting an optimal arrangement scheme of the wind power plant according to requirements. While the total output power of the wind power plant is ensured, the cable cost of the wind power plant is reduced, and the comprehensive benefits of the whole life cycle of the wind power plant are improved.

A seeding assembly for direct seeding comprising a support attached to the chassis of a seeding machine; load generating means supported on said support, and a seeding frame supporting a coulter blade and a double disc assembly comprising two furrow opening discs, the coulter blade and the double disc assembly being in a tandem arrangement, with minimum distance or spacing therebetween, and the coulter blade being partially located within the seeding frame, wherein the seeding frame is attached to the support through a parallelogram system, and the load generating means transmit load to the seeding frame through said parallelogram system, and wherein the coulter blade is partially located within the parallelogram system allowing the load applied to the seeding frame to concentrate more on the coulter blade so that said coulter blade penetrates the soil.

The invention discloses a clamping force global sensing device and a calibration method, and belongs to the technical field of clamping force sensing. Comprising a clamping force sensing module, a clamping force clamping jaw and a clamping device body, the clamping force sensing module is located between the clamping device body and the clamping device clamping jaw, and a parallelogram flexible hinge mechanism is arranged in the clamping force sensing module; a parallelogram flexible hinge moving end and a parallelogram flexible hinge fixed end are arranged in the parallelogram flexible hinge mechanism, and the parallelogram flexible hinge fixed end is fixed to the clamp holder body through the sensing module clamp holder adapter plate. And the moving end of the parallelogram flexible hinge is connected with the clamping jaw of the clamping device through the sensing module clamping jaw adapter plate. According to the clamping force global sensing device and the calibration method, the clamping force is converted into linear infinitesimal displacement in a single direction through the translation characteristic of the flexible hinge structure, and then the magnitude of the clamping force is detected through the piezoelectric / piezoresistive sensor.

The invention discloses a side slope sampling and collecting device for surveying and mapping, and relates to the technical field of side slope sampling, the side slope sampling and collecting device comprises a first lifting connecting rod and a second lifting connecting rod which are hinged to a transfer trolley, and the first lifting connecting rod and the second lifting connecting rod are jointly hinged to a mounting transverse plate; the first lifting connecting rod, the second lifting connecting rod, the mounting transverse plate and the transfer trolley form a parallelogram connecting rod structure, a sampling assembly is mounted on the mounting transverse plate, and the position of the sampling assembly is controlled through the connecting rod structure. By means of the technical scheme, the transfer trolley drives the whole sampling structure, manpower is saved, slope soil at a higher position can be sampled on the ground through the first lifting connecting rod, the second lifting connecting rod and the mounting transverse plate, and the front-back position and the height position can be adjusted through the parallelogram connecting rod structure.

The invention relates to a microprism reflective film integrated with three types of triangular pyramid combinations and a manufacturing method of a mold of the microprism reflective film, which are characterized in that the surface of the microprism reflective film is formed by the same parallelogram unit array, and each parallelogram unit consists of four same triangular pyramids A, two mixed triangular pyramids B and two mixed triangular pyramids C, the bottom surfaces of the triangular pyramids A, the mixed triangular pyramids B and the mixed triangular pyramids C are the same equilateral triangles, the inclination angles of the three pyramid surfaces of each triangular pyramid A are alpha / 2, the inclination angles of the pyramid surfaces of the mixed triangular pyramids B are alpha / 2, alpha / 2 and beta L, and the inclination angles of the three pyramid surfaces of the mixed triangular pyramids C are alpha / 2, alpha / 2 and beta R; according to the method, the performance under different application conditions can be reasonably optimized, so that wide-angle performance improvement and optimization and balance of overall comprehensive performance can be realized.

The invention discloses a layered energy-saving driving speed optimization method, computer equipment and a storage medium, and relates to the technical field of data processing.The method comprises the steps that a longitudinal dynamic model is constructed according to the relation between the vehicle state and the driving mileage; constructing an energy consumption model according to the relationship among the vehicle speed, the driving torque and the instantaneous battery output power; constructing a green wave window according to the energy consumption model so as to generate the optimal passing time and the entrance and exit speed of each road section; constructing and optimizing a fillet parallelogram envelope line based on the green wave window according to the maximum speed, the maximum acceleration and the maximum deceleration of the vehicle so as to construct a space-time boundary of the green wave window; and generating an energy-saving speed curve according to the longitudinal dynamic model, the energy consumption model, the space-time boundary of the green wave window, the optimal passing time and the entrance and exit speed. By adopting the method, the speed track with an excellent energy-saving effect can be quickly calculated and obtained.

The utility model discloses a binocular inverted image prism image stabilization module forming linkage of a parallelogram mechanism, which comprises a mounting frame, an X-axis rotating frame, a left prism assembly, a right prism assembly, a left Y pivot shaft, a right Y pivot shaft, an X pivot shaft, a connecting rod, an X-axis driving mechanism and a Y-axis driving mechanism, the X-axis rotating frame is nested in the mounting frame and is rotatably connected with the left side and the right side of the mounting frame through X pivoting shafts on the two sides; the left prism assembly is nested in the X-axis rotating frame and is rotatably connected with the upper end and the lower end of the X-axis rotating frame through a left Y pivot shaft; the right prism assembly is nested in the X-axis rotating frame and is rotatably connected with the upper end and the lower end of the X-axis rotating frame through a right Y pivot shaft; the connecting rod, the left prism assembly and the right prism assembly form a parallelogram mechanism to be linked; the structure design is ingenious and greatly simplified, the production cost is reduced, the structure is more compact, the control is simple, and the imaging quality is more stable.

The invention belongs to the technical field of parallel robots, and particularly relates to a four-degree-of-freedom parallel mechanism based on wheel type driving, which comprises a movable platform, parallelogram structures with offset angles are symmetrically arranged on the left side and the right side of the upper surface of the movable platform, and the movable platform is connected with branch chain structures through the parallelogram structures with the offset angles. An output platform is connected below the movable platform; according to the four-degree-of-freedom parallel mechanism provided by the invention, wheel type driving is adopted, so that the four-degree-of-freedom parallel mechanism can realize three-degree-of-freedom movement on a plane, a positioning space is approximate to an environmental space, and the four-degree-of-freedom parallel mechanism has the capability of working in a complex environment through wheel type driving, so that the application range of the mechanism is greatly expanded.

The invention discloses a method for manufacturing an arched girder combined section of a super-large-section steel box arch bridge suitable for highway transportation. Comprising a manufacturing process method of an oversized arch foot steel straining beam rod piece of a parallelogram structure and an oversized arch foot steel arch rib rod piece of an octagonal structure and a process method for controlling the assembly size and the linear shape of an overall space structure of an arch foot steel straining beam and an arch foot steel arch rib. The arch foot steel straining beams of the parallelogram box type structures and the octagonal arch foot arch ribs are integrally manufactured, and the arch foot arch ribs and the arch foot straining beams are connected in a welded mode. According to the method, the complex structural characteristics of octagonal arch springing arch ribs and parallelogram irregular arch springing straining beams of the steel box arch bridge arch beam combination section are combined, the method that the plate units are manufactured firstly and then the box body is assembled is adopted, the tailor-welding size of each plate unit is controlled, and control over welding deformation and the overall size of the subsequent box body is facilitated; an integral horizontal pre-splicing method is adopted, and a matching piece welding method is adopted, so that the aim of controlling the spatial relationship between the arch springing, the arch rib and the straining beam is achieved.

The invention relates to the technical field of wind power plant micro-siting, and particularly provides a parallelogram rule-based wind power plant layout optimization method and device and a medium, and the method comprises the steps: obtaining the attribute information of a to-be-optimized wind power plant; randomly generating a shape variable of a parallelogram rule based on the attribute information, and establishing an initial population based on the shape variable; based on the global center point coordinate, the parallelogram included angle and the overall rotation angle in the shape variables, obtaining an arrangement scheme of the wind turbine generators in the to-be-optimized wind power plant; optimizing the arrangement scheme based on the initial population and the optimization target; when the optimization target reaches a preset convergence condition, obtaining an optimal arrangement scheme; according to the method, the arrangement scheme of the wind turbine generators is set by using the global center point coordinate, the parallelogram included angle, the overall rotation angle and other parameters of the parallelogram rule, traversal calculation is not needed, calculation resources are saved, the generator arrangement efficiency is improved, the mathematical optimal solution of the generator set point location is achieved, and the comprehensive benefits of the whole life cycle of a wind power plant are improved.

The invention relates to the field of aircrafts and underwater vehicles, in particular to a variable-configuration water-air amphibious cross-medium unmanned aerial vehicle which comprises a watertight electronic cabin assembly, a flight rotor component, a vehicle arm seat, a vehicle arm driving assembly, an undercarriage, a connecting rod and an underwater propelling assembly used for driving the vehicle to move underwater. The flying rotor component is mounted at the upper end of the watertight electronic cabin component and is driven by the arm driving component to be unfolded or folded, so that the unmanned aerial vehicle can be freely converted between two configurations of a four-rotor unmanned aerial vehicle and an underwater vehicle; the arm seats, the undercarriages, the flying rotor components and the connecting rods are hinged to one another to form a parallelogram connecting rod mechanism, and the undercarriages are unfolded and folded along with unfolding and folding of the flying rotor components under driving of the arm driving assemblies. The four-rotor unmanned aerial vehicle can be freely converted between two configurations of a four-rotor unmanned aerial vehicle and an underwater vehicle through the structure variant, so that the requirements of various application scenes such as water rescue, underwater detection and cross-medium monitoring are met.

The invention relates to a composite microprism reflective film with three triangular pyramid structures and a manufacturing method of a mold of the composite microprism reflective film, and is characterized in that the surface of the microprism reflective film is formed by an array of identical parallelogram unit bodies, and each parallelogram unit body is composed of two identical triangular pyramids A, four mixed triangular pyramids B and two mixed triangular pyramids C, the bottom surfaces of the triangular pyramids A, the mixed triangular pyramids B and the mixed triangular pyramids C are the same equilateral triangles, the inclination angles of the three pyramid surfaces of each triangular pyramid A are alpha / 2, the inclination angles of the pyramid surfaces of the mixed triangular pyramids B are alpha / 2, alpha / 2 and beta / 2, and the inclination angles of the three pyramid surfaces of the mixed triangular pyramids C are alpha / 2, beta / 2 and beta / 2 respectively; the area ratio of the triangular pyramid A to the triangular pyramid B to the triangular pyramid C is 1: 2: 1, and the performance under different application conditions can be reasonably optimized, so that the wide-angle performance can be improved, and the optimization and balance of the overall comprehensive performance can be realized.

In an energy absorbing member (10), a basic unit (20) with a U-shaped cross-section comprising a press-molded article is formed by a first sheet section (41) and a pair of second sheet sections (42, 42). An inner surface (21) and an outer surface (22) of the basic unit (20) that has been configured having the U-shaped cross section are contours that do not have an undercut shape in a direction along a reference line (CL2). The first sheet section (41) and the pair of second sheet sections (42, 42) have imaginary parallelograms (90) that extend from a first end surface (51) to a second end surface (52) of the basic unit (20) and are respectively deviated around an axis (CL1). At least one of two diagonals (91, 92) of each imaginary parallelogram (90) is formed by a fold line.

The invention provides bottle inner wall spraying equipment and a spraying process thereof, and relates to the technical field of spraying process.The bottle inner wall spraying equipment comprises a sliding rail mechanism, two sliding seats are arranged at the bottom of the sliding rail mechanism, a clamping mechanism is fixedly connected between one sides of the two sliding seats, and a spraying mechanism is installed at the bottom of the sliding rail mechanism; a conveying mechanism is arranged at the bottom of the clamping mechanism, and a bottle liner is arranged at the top of the conveying mechanism. According to the device, the shaft moving plate and the rotating plate are parallel to each other and can be matched with the supporting plate and the connecting plate to form a parallelogram, so that when one side rotates, other sides can be driven to rotate in parallel, that is, the rotating plate rotates to drive the connecting plate to rotate in parallel, and then the clamping plate can be driven to rotate in a horizontal state all the time; the glass liners on the conveying mechanism can be clamped by the clamping mechanism and matched with the regulation and control mechanism, and the glass liners can be conveyed to the spraying mechanism through the sliding rail mechanism to be subjected to spraying treatment.

The invention discloses a lifting platform equipment stair special for transformer assembly, and relates to the technical field of stairs, the lifting platform equipment stair special for transformer assembly comprises a lifting platform and a base frame, and the bottom of the lifting platform is fixedly connected with a first fixing block and a second fixing block; one side face of the first fixing block is rotationally connected with a stair frame plate through a shaft rod, one side face of the second fixing block is rotationally connected with a supporting rod through a shaft rod, and one side face of the stair frame plate is rotationally connected with stair pedals through a shaft rod. The special lifting platform equipment staircase for transformer assembly has the effects that when the inclination angle of the staircase is adjusted, the staircase treads are kept in a horizontal state all the time, and a climber can conveniently use the staircase, a parallelogram structure is formed through cooperation of the staircase frame plates, the supporting rods and the staircase treads, and the inclination angle of the staircase clamping plates is changed; the stair treads are kept horizontal all the time, a climber can conveniently tread and climb, and the purpose of improving practicability is achieved.

The invention relates to the field of elevator wheel machining. The invention discloses an elevator wheel surface machining device for elevator accessory machining. The problem to be solved by the invention is that the steps of processing the surface of the elevator traction sheave by the device are relatively tedious. The device is composed of an inner support fixing mechanism, a limiting clamping mechanism, a switching mechanism and an extrusion separation mechanism. According to the elevator wheel surface machining device for elevator accessory machining and the using method, after four inner supporting blocks abut against the inner wall of an elevator wheel, two cylinders on a parallelogram block slide in a rectangular through groove and extrude one end of a T-shaped rod to deflect clockwise, so that a second clamping block on the T-shaped rod deflects to be separated from a second limiting clamping wheel; the locking and clamping state of the second clamping block on the second limiting clamping wheel is relieved; and then the spline spring telescopic pipe and the hollow disc are driven to reversely rotate at the same time through the anticlockwise rotating force of the bidirectional motor, the elevator wheel on the hollow disc is promoted to rotate anticlockwise, and the surface of the elevator wheel is ground in cooperation with the grinding block.

The invention discloses an automobile electric pedal and a vehicle. The automobile electric pedal comprises a pedal, at least two pedal supports and a driving mechanism. Each pedal support comprises a support fixed hinge and a support movable hinge, the at least two pedal supports comprise at least one driving pedal support and at least one driven pedal support, and the two ends of the support movable hinge are hinged to the pedal and the support fixed hinge respectively. One driving pedal bracket, one driven pedal bracket and the pedal form a parallelogram connecting rod mechanism; the driving mechanism is used for driving the support movable hinge to rotate relative to the support fixed hinge so that the pedal can horizontally move and stretch relative to the support fixed hinge. A first containing groove is formed in the side, close to the pedal, of the support fixing hinge, and when the pedal is in the retracting state, at least part of the pedal is contained in the first containing groove. According to the scheme, the automobile exhaust system can narrow the width of the electric pedal in the width direction of the automobile body, the available space of the battery pack is increased, the endurance mileage is increased, and the failure rate is lower.

The invention discloses a compliance regulation and control method for a combined six-bar multiple metamorphic mechanism. The combined six-bar multiple metamorphic mechanism is formed by combining two of the following three four-bar mechanisms: a Bennett mechanism, a parallelogram mechanism and a spherical four-bar mechanism. The compliance regulation and control method is realized by increasing the degree of freedom of the combined six-bar multi-metamorphic mechanism, and comprises the following steps: A, selecting two configurations needing to be switched; b, motion states of all joints of the mechanism under the two configurations in the step A are analyzed, and mutant joints and non-mutant joints are determined; c, part of non-mutant joints are selected to be fixed at non-bifurcation points, additional joints are added, and configuration switching is achieved; and D, each additional joint is coupled to the corresponding mutation joint adjacent to the additional joint, and a coupling joint is formed. The bifurcation points are converted into the continuous motion interval through bifurcation domain expansion, the mechanism achieves dynamic and flexible conversion in motion in combination with the coupling joint design, the shutdown requirement of traditional rigid switching is avoided, and motion impact is greatly reduced.

The invention relates to a microprism reflective film with three kinds of triangular pyramid combinations and a manufacturing method of a mold of the microprism reflective film, the surface of the microprism reflective film is formed by an array of identical parallelogram unit bodies (1), each parallelogram unit body (1) is composed of four identical triangular pyramids A, one triangular pyramid B and three identical triangular pyramids C, the directions of the four triangular pyramids A and the directions of the three triangular pyramids C and the triangular pyramids B form 180 degrees, and the three triangular pyramids C and the triangular pyramids B are arranged among the four triangular pyramids A in a staggered manner; the bottom surfaces of the triangular pyramids A, B and C are the same equilateral triangles, the inclination angles of the three pyramids of each triangular pyramid A are alpha / 2, the inclination angles of the three pyramids of each triangular pyramid B are beta-alpha / 2, and the inclination angles of the three pyramids of each triangular pyramid C are alpha / 2, alpha / 2 and beta-alpha / 2 respectively. According to the method, the performance under different application conditions can be reasonably optimized, so that wide-angle performance improvement and optimization and balance of overall comprehensive performance can be realized.

The invention provides a novel telecentric fixed point mechanism for minimally invasive surgery, which comprises a base, a movable platform, two groups of planar branch chain assemblies, an arc branch chain assembly and a two-degree-of-freedom decoupling end effector, the two groups of planar branch chain assemblies are symmetrically arranged on the base, each planar branch chain assembly is a connecting rod group which is composed of six connecting rods and is provided with a parallelogram frame, and the arc branch chain assembly is provided with a parallelogram frame. The tail end of the plane branch chain assembly is connected and hinged to the movable platform, and the arc branch chain assembly comprises a semicircular arc guide rail and a rail sliding block matched with the arc guide rail in a sliding mode. A fixed point mechanism of a double-plane branch chain parallel configuration and a fixed point mechanism of a rotatable arc track configuration serve as parallel mechanism branch chains, over-constraint is formed in the mechanism, and the precision and rigidity of the mechanism are improved. The two planar branch chains are orthogonally and vertically arranged, the axes of the two driving joints are located in respective branch chain planes, are perpendicular to each other and coincide with each other, and a two-degree-of-freedom decoupling end executor is matched, so that the mechanism can realize four-degree-of-freedom movement which is completely decoupled.

The utility model discloses an A-surface-free photovoltaic module frame, which comprises a frame piece and a pressing block piece, the frame piece is fixedly arranged on a photovoltaic support through the pressing block piece, the frame piece comprises a side plate I, a side plate II, a lower supporting plate, an upper supporting plate and a corner connector connecting cavity, the middle part of the side plate I is provided with a clamping groove and an anti-seepage groove designed at the upper end of the clamping groove, and the middle part of the side plate II is provided with an anti-seepage groove designed at the upper end of the anti-seepage groove. The pressing block piece comprises a pressing block matched with the clamping groove and an anti-seepage boss matched with the anti-seepage groove, the clamping groove is designed to be of a parallelogram-like structure, a first gluing area and a pressure relief area are arranged on the first side plate, and a second gluing area is arranged on the upper supporting plate. The pressing block and the clamping groove are matched to provide downward pressure, the purpose of pressing the frame piece is achieved, it can be effectively guaranteed that the height of the frame and the photovoltaic panel are kept on the same face, and the photovoltaic panel is of a flat structure after being installed on the frame. And the pressure relief area absorbs redundant glue to achieve the purpose of preventing the glue from permeating to the surface of the photovoltaic panel.

The invention relates to the field of tractor hooking farm tools, in particular to a hooking device of a self-propelled potato planter, which comprises a transition frame, a hydraulic cylinder, a connecting rod and a transition rod, the transition frame is a vertically mounted rectangular frame formed by connecting an upper rod, a left rod, a lower rod and a right rod end to end; the seeding single machine frame comprises a cross rod and two right-angle supports which are located at the two ends of the cross rod and are perpendicularly connected with the cross rod, each right-angle support comprises a vertical rod and a horizontal rod perpendicular to the vertical rod, and the connecting rods are four rod pieces of the same structure; the two connecting points on the left rod and the two connecting points on the vertical rod of the left right-angle support are rotationally connected with the two ends of the two connecting rods respectively to form a parallelogram structure. The seeding unit can swing left and right on the horizontal plane and float up and down on the vertical plane in the seeding operation state, and the seeding unit is fixedly connected with the traction machine in the road transportation state, so that left-right swing and up-down floating on the vertical plane cannot occur.

When a user uses the potty chair to go to the toilet, an upper supporting piece is driven by a lifting mechanism to be far away from a lower supporting piece, an upper transverse rod of a parallelogram mechanism is made to be far away from a lower transverse rod, and therefore the seat drives the user to move upwards and backwards to the position over a closestool. After the user finishes defecation, the lifting mechanism drives the upper supporting piece to be close to the lower supporting piece, the upper transverse rod of the parallelogram mechanism is made to be close to the lower transverse rod, and therefore the seat drives the user to move downwards and forwards to the position above the front of the closestool, a space is reserved between the closestool and the feet of the user, and the feet of the user can move backwards conveniently; and the body of the user moves forwards along with the seat, so that the gravity center of the body of the user is closer to the two feet, the force required by the user for getting up is reduced, and the user can get up by himself / herself. The potty chair can be applied to the field of potty chairs.

The invention provides a solar wing device which is characterized in that one end of a flexible solar panel (6) is wound on a winding drum (3), the other end of the flexible solar panel (6) is connected with a uniform load rod (5), and the uniform load rod (5) is always parallel to a rotating shaft of the winding drum (3); the scissor mechanism (4) is formed by cascading four equal-length rods which form parallelograms when unfolded, the flexible solar panel is unfolded and folded in the bottom end-top end direction, elastic components are arranged at the bending positions of the left end and the right end, opposite to each other, of each parallelogram, and the scissor mechanism is driven by the elastic components to be unfolded. The elastic component enables the scissor mechanism (4) to always keep a force for pushing away the uniform load rod (5), and in the unfolding state or the folding state of the solar blanket, the torque generated by the motor adapts to the elastic force generated by the elastic component. The flexible solar wing can be repeatedly unfolded and folded in orbit for many times.

The invention discloses a preparation method of an optical fiber image transmitting element, which comprises the following steps: acquiring single optical fibers, arranging a plurality of single optical fibers into a parallelogram, and filling gaps of the parallelogram with absorption wires and filling wires; drawing the parallelogram into a parallelogram primary composite optical fiber with a first preset side length and a second preset side length; the first preset side length is greater than or smaller than the second preset side length; arranging a plurality of parallelogram primary composite optical fiber filaments into a regular hexagon, and drawing the regular hexagon into a regular hexagon secondary composite optical fiber filament with a third preset side length; and arranging a plurality of orthohexagonal secondary composite optical fibers into an orthohexagonal screen section with a fourth preset side length, and performing melt pressing on the orthohexagonal screen section to obtain an optical fiber panel screen section with a preset diameter. The embodiment of the invention can reduce the optical fiber quality problem caused by the optical fiber screen section structure, and can be widely applied to the technical field of optical fiber preparation.

A collapsible space enclosure system is disclosed, designed for efficient transport and deployment in the field of mechanical engineering. The system described addresses the technical problem of cumbersome and inefficient collapsible structures by providing a system that integrates a telescopic lifting central section with an upper and lower portion for balanced vertical retraction and extension. The system includes folding panels connected to the central structure, configured to fold in two for compact shipment. Actuators enable continuous 360° rotation and balanced vertical movement. Parallelogram linkage assemblies facilitate simultaneous lateral retraction and vertical lifting. Retractable strut channel assemblies allow for the installation of add-on retractable spaces, increasing floor area. This system is particularly useful for military, commercial, and recreational applications, offering a streamlined and versatile solution for rapid deployment and compact storage.