721 results about "Parallelogram" patented technology

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 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.

A device for processing mesh data is configured to select one of multi-parallelogram prediction or cross product prediction as a selected prediction process for a mesh of the mesh data; in response to determining for a first vertex of the mesh that a first set of already decoded normal vectors are available, determine a predicted normal vector for the first vertex using the selected prediction process; normalize and scale the predicted normal vector for the first vertex to generate a normalized and scaled normal vector; and output a decoded version of the mesh based on the normalized and scaled normal vector.

A paver system for paving a surface is provided. The paver system includes a plurality of cells interconnected to form a grid. The cells generally include six walls to form a hexagonal shape. The cells share at least two walls with adjacent cells, wherein the grid is arranged having parallel rows and columns of cells defining a parallelogram shaped grid. The grid defines four sides, wherein adjacent sides are not at a right angle, wherein select cells may have one or more walls which include a flexible expansion node, and wherein the cells are adapted to receive a filler.

The invention discloses a horizontal steering wheel with a walking mechanism and a steering mechanism, and belongs to the technical field of steering wheels. Comprising a support assembly, a spring shock absorber is rotationally installed on the support assembly, a fixing frame is rotationally installed at one end of the spring shock absorber, and a wheel assembly is installed on the fixing frame; an upper connecting rod frame is rotationally installed on the support assembly and rotationally connected with the fixing frame, and a lower connecting rod frame is rotationally installed on the support assembly and rotationally connected with the fixing frame. The support assembly is provided with a driving assembly used for controlling the wheel assembly to steer. The upper connecting rod frame and the lower connecting rod frame form a parallelogram guide structure, and the upper connecting rod frame and the lower connecting rod frame swing synchronously in the damping process or under the heavy-load eccentric load working condition, so that tires are kept perpendicular to the ground all the time, the situation that the ground contact area is reduced due to inclination is avoided, it is guaranteed that contact pressure between the tires and the ground is evenly distributed, local abrasion is reduced, and the service life of the tires is prolonged. And meanwhile, the stability in the carrying process is improved.

A mesh coding method includes receiving a bitstream including coded information indicating that an attribute value of a current vertex in the mesh is predicted based on respective attribute values of a first vertex, a second vertex, and a third vertex in the mesh including a first face and a second face. The first face includes the first vertex, the second vertex, and the third vertex. The second face includes the first vertex, the second vertex, and the current vertex. A value is determined based on an angle between the first face and the second face. One of a plurality of prediction modes is determined based on the value. The plurality of the prediction modes includes a generalized parallelogram prediction mode and a linear parallelogram prediction mode. A predictor of the attribute value of the current vertex is determined based on the one of the plurality of prediction modes.

The invention discloses a railway signal relay contact pressure sensor which comprises an elastic body, a probe fixed at one end of the elastic body and at least one sensitive element attached to the surface of the elastic body. Wherein the elastic body comprises an elastic detection structure, the elastic detection structure is a structure based on double-hole parallel beams, the elastic detection structure is composed of two parallel beams and two vertical beams, and the elastic detection structure can generate parallelogram deformation. The contact pressure sensor meets the use requirements of railway signal relay contact pressure measurement.

The invention discloses a micro-channel heat sink, which comprises a substrate and a packaging sheet which are stacked up and down, the packaging sheet is respectively provided with a fluid inlet and a fluid outlet, the substrate is provided with a groove, the middle of the substrate is provided with a micro-channel with a sectional parallelogram rib wall, and groove areas at two sides of the micro-channel are an inlet liquid storage groove and an outlet liquid storage groove. The front half part of the sectional type parallelogram rib wall micro-channel heat sink is a parallelogram micro pin fin cluster with a small size, and the rear half part of the sectional type parallelogram rib wall micro-channel heat sink is a parallelogram rib wall with a large size. A multi-stage channel is formed in the heat sink, a first-stage channel is formed in the flowing direction, a second-stage channel is formed between the large-size rib walls, and a third-stage channel is formed between the micro pin-fin clusters. According to the invention, the heat dissipation efficiency and the temperature uniformity of the heat sink can be effectively improved, and the voltage drop is effectively controlled. Compared with a traditional parallelogram pin-fin heat sink with a uniform size, the pressure drop is obviously reduced, and the comprehensive performance is improved by 24.9%.

This invention belongs to the field of exoskeleton technology, specifically a lower limb exoskeleton, including a drive system for controlling leg bone movement. This drive system comprises a composite drive component, a thigh linkage, and a lower leg linkage. The composite drive component is mounted on a waist assembly via a central axis, and a fifth hinge axis parallel to the central axis is positioned away from the central axis. The ends of both the thigh and lower leg linkages are movably connected to the fifth hinge axis, forming a parallelogram mechanism with the thigh and lower leg. Driven by a drive motor assembly, the composite drive component rotates, at which point the thigh and lower leg linkages respectively pull the thigh and lower leg to simulate human leg movement. By adding two additional connecting rods to construct the leg bone into a parallelogram mechanism, and driving the two additional connecting rods synchronously via a single drive motor assembly, the leg bone is controlled to simulate human leg movement.

According to the translation positioning mechanism and method suitable for the parallel structure, the mechanism is characterized in that an elastic feedback device is arranged on an existing parallelogram connecting rod, a strain detection sensor is arranged on the elastic feedback device, and for any position of a positioning point, the stress sensor generates a reading due to the non-parallelism of the connecting rod; a positioning end deviation value is obtained, and then a positioning point deviation value is obtained; additional rotation or translation errors of the parallel positioning device are calculated through data of the strain detection sensor, and then the positioning precision of the parallel positioning device is improved through a precision compensation link.

The application provides a three-camera multispectral facial skin quantitative analyzer, and relates to the field of head and face measurement. The three-camera multispectral facial skin quantitative analyzer comprises a sleeve, lifting guide rods are slidably connected to the two sides of the inside of the sleeve, a base is arranged below the sleeve, the outer sides of the two lifting guide rods are fixedly connected to the two sides of the inside of the base, and three supporting brackets are uniformly fixedly connected to one side of the base. Three cameras are integrated to realize image acquisition in three aspects. Due to the transmission characteristics of the parallelogram structure, the imaging focus of the camera can quickly fall on the face of the detected person, the purpose of rapid focusing is achieved, the working time is shortened, and multiple different spectrums, including but not limited to LED light and parallel polarized light, are comprehensively arranged to achieve good imaging effects at three different angles under different spectrums, and the needs of medical analysis are met.

The application relates to a synthesis method of a rotating phasor, which is suitable for the technical field of electrical rotating phasor conversion and is particularly directed to the decomposition and synthesis of an electrical rotating phasor. The method adjusts the initial phase of two amplitude-constant sub-rotating phasors, and then synthesizes a target rotating phasor with adjustable amplitude and initial phase, and has the characteristics of easy generation of the sub-rotating phasor, good flexibility and high reliability. The application mainly utilizes the parallelogram rule of vector operation, reduces the generation difficulty of the sub-rotating phasor by reducing the generation problem of the target rotating phasor with adjustable amplitude and initial phase to the synthesis problem of the two sub-rotating phasors with constant amplitude and adjustable phase, and solves the problem of synthesizing a complex rotating phasor from a simple rotating phasor. The technical scheme provided by the application forms a simple sub-rotating phasor through electromagnetic conversion, and provides a new idea for the synthesis of a complex rotating phasor.

The invention provides an air guide door assembly and an air conditioner, and relates to the technical field of air conditioning equipment. The air guide door assembly comprises an air outlet frame, a connecting rod, an air guide door crank and an air guide door. The air outlet frame is provided with a first mounting hole and a second mounting hole; the connecting rod is connected with a driving piece; the air deflector crank comprises a connecting part and a rotating shaft part, one end of the connecting part is connected with the connecting rod, the other end of the connecting part is connected with the rotating shaft part, the rotating shaft part is rotatably arranged in the first mounting hole or the second mounting hole, and the rotating shaft part is provided with a first clamping part and a second clamping part; the air guide door is provided with a first clamping part and a second clamping part. The crank connecting rod mechanism can be arranged to be a parallelogram mechanism, and the left-right air guide door and the crank of the left-right air guide door can be universal, so that the stable movement of the crank connecting rod mechanism is ensured while the left-right air guide door and the crank of the left-right air guide door are universal.

The invention discloses a locking device for automatically locking a kiln door and a kiln, and relates to the field of industrial kiln equipment. At least two rotating shafts extending in the first direction are arranged at intervals up and down and are rotationally arranged; each rotating shaft is fixedly provided with a pressing piece; the connecting rods extending up and down and the rotating shaft are arranged at intervals in the second direction; the at least two swing arms are vertically arranged at intervals, one ends of the swing arms are hinged to the connecting rods, the other ends of the swing arms are fixedly connected with the corresponding rotating shafts, and the hinged positions and the fixed connecting positions of all the swing arms are connected to form a parallelogram; one end of the linear driving piece is hinged to one end of the connecting rod, the other end of the linear driving piece is hinged, the linear driving piece can drive the connecting rod to move so that all the pressing pieces can lock the kiln door, and the perpendicular connecting line between the contact position of the pressing pieces and the kiln door and the center axis of the corresponding rotating shaft extends in the second direction. According to the invention, the kiln door can be automatically and efficiently locked, and mechanical self-locking and low energy consumption are realized, so that the sealing reliability and consistency of the kiln door are ensured.

The present invention relates to an expansion joint for a cable tray for construction, comprising: a variable rail (20) whose spacing between each other changes due to thermal expansion and contraction caused by temperature changes; a pair of pivot pins (30) each installed on the outer side of the variable rail (20); a rotation center end (41) supported by the pivot pin (30), and a pivot end (42) that extends toward each other by the same length and overlaps in a V-shape to pivotally connect, and two pairs of V-links (40) positioned parallel to each other with a constant vertical spacing; and a connecting rod (43) that pivotally connects both ends to the pivot end (42) so as to cross vertically between the pivot ends (42) to form a symmetrical parallelogram link together with the V-links (40).

The application relates to a street intelligent playground device suitable for children, which comprises seven modules, the seven modules comprising five isosceles right-angled triangle modules, one rectangular module and one parallelogram module, the seven modules being spliced with each other to form a seven-piece puzzle structure, and the modules being connected through magnetic adsorption. The application has the effect of improving the applicability of the children playground device.

This invention relates to the field of attaching agricultural implements to tractors, specifically an attachment device for a self-propelled potato planter. The device includes a transition frame, a hydraulic cylinder, connecting rods, and a transition bar. 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 planter frame includes a crossbar and two right-angle brackets at both ends of the crossbar, perpendicular to it. Each right-angle bracket includes an upright post and a horizontal post perpendicular to the upright post. The connecting rod consists of four identical rods. Two connection points on the left rod and two connection points on the upright post of the left right-angle bracket are rotatably connected to the ends of the two connecting rods, forming a parallelogram structure. This invention enables the planter to swing left and right horizontally and float up and down vertically during planting operations. During road transport, the planter is fixedly connected to the tractor, preventing left and right swinging and vertical floating.

The utility model provides a vehicle body controller convenient to assemble, which comprises the following structures: two bridge frames which are arranged up and down relative to the middle part of a controller frame, and a clearance area is reserved between the rear side of each bridge frame and a heat dissipation plate located at the front part of the controller frame; a parallelogram structure is formed by the two bridge frames, the butt joint frame and the controller frame, so that a user can conveniently complete adjustment treatment of the upper and lower mounting positions of the controller frame outside the mounting plate through a first locking bolt, and complete left and right deviation adjustment treatment of the controller frame relative to the mounting plate through cooperation of a sliding groove and a sliding seat; the locking and releasing of the working position of the butt joint frame outside the screw rod are completed, the deflection adjustment and locking of the working position of the controller frame outside the mounting plate are completed, the assembly position of the controller shell outside the mounting plate is adjusted according to the specific mounting space requirement, and the design requirement for convenient assembly of the controller frame is met.

This invention discloses a line exit structure and an electronic derailleur. The electronic derailleur includes a base component, a movable component, a drive assembly, a linkage, and a chain guide. The base component, drive assembly, linkage, and movable component are constructed as a parallelogram linkage mechanism. The drive assembly has a line exit structure. When the chain guide is in the minimum gear position, the line exit structure is simultaneously adjacent to one end of the drive assembly, the boundary of the parallelogram, and the base component. When the chain guide is in the maximum gear position, the line exit structure is at least partially located within the internal space of the parallelogram linkage mechanism. This invention optimizes the spatial relationship between the line exit structure and the parallelogram linkage mechanism at different gear positions, minimizing the wire routing path and bends, avoiding interference with moving components, achieving reliable wiring without increasing the component spacing, and improving structural compactness and aesthetics.

The utility model discloses a novel upper sealing valve disc device of a blast furnace, which relates to the technical field of sealing valve discs, and comprises a valve disc body, a rubber ring and a pressing piece, the working surface of the valve disc body is provided with an annular groove, and the cross section area of the annular groove is a parallelogram; the rubber ring is used for being placed in the annular groove, and the shape of the rubber ring is matched with that of the annular groove; the pressing piece is detachably and fixedly connected with the valve disc body and can press the top face of the side, close to the center of the valve disc body, of the rubber ring into the annular groove, the structure is simple, use is convenient, and the replacement efficiency of the sealing rubber ring is effectively improved.

The invention discloses an integrated drilling and workover rig base capable of being rapidly disassembled and assembled and a using method thereof.The base can serve as an integral structure to be loaded on a flat plate transport vehicle for road transportation in the transportation state and comprises a bottom assembly; a top assembly; the front stand column, the rear stand column, the bottom assembly and the top assembly jointly form a parallelogram folding mechanism; the base lifting cylinder is connected between the bottom assembly and the top assembly; in the transportation state, the parallelogram folding mechanism is in the folded state, so that the top assembly is close to the bottom assembly in the height direction, and the overall appearance size of the base meets the height limiting and width limiting requirements of highway transportation. Through the parallelogram folding structure and the integral transportation design, the integral transportation of the base and the accessories in one train is realized. The two-stage hoisting mechanism is used for guaranteeing safe and stable hoisting, the transportation height is remarkably reduced, the road transportation standard is met, and finally the effects of improving the moving efficiency and reducing the operation cost and the safety risk are achieved.

This invention discloses an obstacle-crossing tree-climbing robot based on a differential telescopic mechanism, comprising: a telescopic mechanism; a gripper mechanism; and a torsional obstacle avoidance mechanism. Two telescopic mechanisms are connected in parallel to the connecting rod of the robot body, forming a parallelogram mechanism. A torsional motor is installed at the diagonal, enabling torsional obstacle avoidance. Combined with the telescopic mechanism, it can avoid obstacles on irregular quadrilaterals. The gripper mechanism is installed on the connecting rod of the robot body and is connected to the connecting rod via a motor. Torque is transmitted through helical gears to a gear below the drive shaft, which in turn drives the gripper to open and close. This invention, through the telescopic mechanism, gripper mechanism, and torsional obstacle avoidance mechanism, enables obstacle-avoiding climbing and gripping functions on irregular branches or tree trunks, overcoming various irregular obstacles and solving the problem of tree-climbing robots easily getting stuck on branches and tree trunks.

The utility model provides a humanoid robot waist structure and a humanoid robot, relates to the technical field of robots, and aims to solve the problem that the waist structure of the existing humanoid robot cannot enable the part above the waist to be always kept in a horizontal posture in the vertical up-down movement process. The humanoid robot waist structure comprises a first parallelogram connecting rod frame, a first driving mechanism, a second parallelogram connecting rod frame and a second driving mechanism, and the first parallelogram connecting rod frame comprises a base, a connecting seat and a first rod set rotationally arranged between the base and the connecting seat, the first driving mechanism is used for driving the first rod group to rotate; the second parallelogram connecting rod frame comprises a connecting base, an upper support opposite to the connecting base and a second rod set rotationally arranged between the connecting base and the upper support, and the second driving mechanism is used for driving the second rod set to rotate. According to the utility model, the part above the waist can be always kept in a horizontal posture in the vertical up-and-down movement process.

A bamboo strip parallelogram automatic tool setting mechanism of a thin bamboo strip cutting machine is installed between the axes of two feeding rollers of the thin bamboo strip cutting machine. The two feeding rollers are connected through the parallelogram automatic tool setting mechanism, synchronous and symmetrical movement towards or away from the cutting edge of the thin bamboo strip cutting knife is achieved, automatic tool setting of the bamboo strips is achieved, and the split precision of the bamboo strips is improved. The device comprises a guide groove plate, a parallelogram connecting rod, two feeding roller moving sliding blocks, two feeding roller moving sliding block springs and two spring baffles. The guide groove plate is fixed on a rack of the thin bamboo strip cutting machine and is positioned between axes of two feeding rollers of the thin bamboo strip cutting machine; a front guide groove and a rear guide groove are formed in the front portion and the rear portion of the guide groove plate respectively, and the center line of the front guide groove and the center line of the rear guide groove are located on the perpendicular bisector of the connecting line of the axes of the two feeding rollers. Four connecting rods of the parallelogram connecting rod are hinged with each other, and symmetrical front and rear hinge shafts of the parallelogram connecting rod are respectively accommodated in the front and rear guide grooves and can move along the front and rear guide grooves; the left hinge shaft and the right hinge shaft which are symmetrical are connected with the feeding roller through feeding roller moving sliding blocks respectively.

This invention relates to the field of vehicle chassis technology, specifically to an active roll mechanism and vehicle with decoupled drive and damping. The mechanism includes a frame, symmetrically arranged upper suspension control arms, A-type lower suspension control arms, shock absorbers, actuator arms, rigid connecting rods, and a drive unit composed of a drive gear and a sector-shaped driven gear. The A-type lower suspension control arm has a front lug and a rear lug, rotatably connected to the frame via two inner hinge points; the upper end of the shock absorber is hinged to the frame, and the lower end is hinged to the front lug, forming a damping path; the drive gear drives the sector-shaped driven gear fixed on the actuator arm, the bottom of which is hinged to the frame, and the top of which is hinged to the rear lug via a rigid connecting rod, forming a rigid drive path independent of the damping path, so that the roll driving force completely bypasses the shock absorber. The upper suspension control arms and the steering tie rod form a parallelogram mechanism, enabling independent control of steering and roll movements.

The invention relates to a shape rigidity variable tail fin and a bionic robotic fish and a motion mode thereof, and belongs to the technical field of underwater robot application. The device specifically comprises a tail handle center rod (35), a tail handle side rod (36), a tail fin center rod (49) and the like. The two sides of the tail fin center rod (49) are provided with single-side composite parallelogram mechanisms; a variable-stiffness regulation and control area of the tail fin is arranged between the tail fin center rod (49) and the tail handle center rod (35), and a first sliding block (37) is arranged between the tail fin center rod (49) and the tail handle center rod (35); the sliding of the first sliding block (37) can change the coverage range of the first sliding block (37) on a variable stiffness regulation and control area on one hand, and drives the single-side composite parallelogram mechanism to generate cooperative deformation on the other hand; the shape and rigidity of the tail fin of the robotic fish are cooperatively controlled, so that the swimming speed and the propelling efficiency of the robotic fish are effectively improved.

Training device (1) with - at least one cable pulley arrangement (2) for actuation by the muscle power of a training user (3), - at least one handle (4) attachable to the cable pull arrangement (2) for handling by the user (3) when operating the cable pull arrangement (2), - at least one weight (5) that can be lifted by operating the cable pull arrangement (2), - at least one bench (6) with a support surface (7) for the user (3) to sit and / or lie down when the cable pull arrangement (2) is actuated, wherein the support surface (7) of the bench (6) is movable in at least two height settings (11, 12), and - at least one support (8) for supporting limbs (9, 10) of the user (3) sitting or lying on the support surface (7) when the cable pull arrangement (2) is actuated, wherein the support (8) can be aligned in at least two alignment positions (13, 14, 15) relative to the support surface (7), characterized in that the bench (6) has a parallelogram guide (18) on which the support surface (7) can be moved into the different height settings (11, 12).

Rowing drive for a tricycle, other body-powered vehicle or training device, characterized by the following features: - the longitudinal tube (L), which forms the front part of the chassis, branches out at the rear end into two steeply sloping tubes (Y), which transition into parallel, horizontally positioned tubes (H) that support the two rear wheels - The longitudinal tube (L) is surrounded by a slightly wider outer tube (O), which either ends behind the drive linkage or just before the end of that longitudinal tube (L) and in this variant also supports the driver's seat there. - said drive linkage, which hangs in the middle between the driver's seat and the front wheel with a solid axle (E) on the outer tube (0), consists of four parallelogram-shaped rods (a, b, c, d), of which the two longer ones (a, b) either extend upwards, as arm rod (a), or downwards, as leg rod (b), from the parallelogram and carry the handlebar (g) or the pedal rod (p) at their free end. - the two shorter parallel crossbars (c, d) connect the arm and leg bars (a, b) with four joints (A, B, C, D) and, when pulled or pushed, rotate with the handle and / or pedal bar (g, p) so that they pull the arm bar (a) downwards and the leg bar (b) upwards as both approach their mean path position and thereby straighten from the inclined position to the vertical; and because both movements continuously compensate for each other, they result in straight horizontal paths for the handle and pedal bar (g, p) - The axis (E) around which the lower crossbar (d) rotates divides it into unequal sections, which is why the arm rod (a) connected to the longer section has a larger oscillation amplitude than the leg rod (b) - above the axis (E) on the outer tube (O) stands a vertical rail (T) on which the joint (C) transformed into a slide (tsl) between the tip of the leg rod (b) and the upper crossbar (c) rises and falls during the drive movement - a device which first strictly determines the paths of the handle and pedal rod (g, p).

The utility model discloses a garbage pool leachate pollution discharge system and garbage pool structure relates to garbage pool technical field, wherein, the grating plate can be located at the pollution discharge hole department of garbage pool, and the both sides of grating plate along its thickness direction are inside and outside respectively, and grating plate is equipped with a plurality of through the installation hole of inside and outside, a plurality of cleaning devices are correspondingly set up with a plurality of installation holes respectively, and the cleaning device includes sleeve, screw rod and the folding frame of parallelogram, the sleeve extends along the thickness direction of grating plate, and is worn in the installation hole department, the screw rod is worn and is connected in the sleeve with screw thread, and the folding frame is located at the inside of grating plate, and one end of folding frame is located on the sleeve, and the opposite end is located on the screw rod, and the screw rod can rotate and retract relative to the sleeve to drive the folding frame to fold or unfold, and the one end of screw rod away from folding frame is equipped with drive connecting portion, and drive connecting portion is located at the outside of grating plate. The utility model can effectively solve the situation of silting up, guarantee the smooth pollution discharge, and low cost.