93 results about "Arm folding" patented technology

In a miniature Q-switched, pulsed laser, having a two arm folded resonator, Q-switching is effected by rapidly and reciprocally tilting a resonator mirror of the laser about an axis perpendicular to the axis of the laser resonator. The angular excursion of the tilting and the frequency of the tilting are selected cooperative with dimensions of the resonator to maximize energy and symmetry of intensity distribution in Q-switched pulses delivered by the laser. Rapid reciprocal tilting of the mirror is accomplished using a piezoelectrically-driven, MEMS scanner operated in a resonant mode.

The invention discloses a UAV (Unmanned Aerial Vehicle) arm folding mechanism. The UAV arm folding mechanism comprises a UAV arm connection base and a UAV arm folding base arranged on a UAV arm, wherein one end of the UAV arm folding base is hinged to the UAV arm connection base; a folding mechanism is arranged on the UAV arm connection base; the folding mechanism is movably connected with the other end of the UAV arm folding base; the folding mechanism comprises an outer handle and an inner handle; one end of the inner handle is hinged to the UAV arm connection base; the other end of the inner handle is provided with an outer handle rotation shaft in a sleeved manner; one end of the outer handle is hinged to the outer handle rotation shaft; the other end of the outer handle is provided with a connection part which is movably connected with the UAV arm folding base; and the inner handle is further provided with a locking structure for locking the inner handle. The UAV arm folding mechanism is convenient for operation; double-locking is realized; and furthermore, an elastic component is arranged between the two metal components, so that a clearance between the metal components is eliminated; the stability is improved; and the service life is prolonged.

The invention belongs to the technical field of special robots and particularly relates to a differential motion driving magnetic adsorption type multifunctional wall climbing robot with small-folding-size mechanical arms, comprising a climbing mechanism and an operation mechanism, wherein the operation mechanism comprises multifunctional mechanical arms and tail end working modules; a base of each multifunctional mechanical arm is fixed on an adsorption type climbing mechanism; and each tail end working module is fixed at the tail end of each multifunctional mechanical arm. According to the invention, the small-folding-size mechanical arms are carried; with the adoption of a five-degree-of-freedom matching manner, the tail end of each arm can work in a working region at any position and any angle; and compared with the other mechanical arms with less degree-of-freedom, the movement of the multifunctional mechanical arms is more flexible. The small-folding-size mechanical arms refer to that the arm folding is more compact and the size of the folded arm is smaller according to explanation; and according to the shape represented on each arm, particularly a large arm adopts a curve design, so that other structures can be avoided when the arms are folded.

The invention discloses a foldable fast-loading tower crane comprising a rotation platform, a tower body capable of being lifted, a lifting and folding mechanism of the tower body, a foldable cross arm and a cross arm folding mechanism, wherein one end of the tower body is movably connected with the rotation platform, and the other end is movably connected with one end of the cross arm; the lifting and folding mechanism of the tower body is respectively connected with the rotation platform and the tower body and used for controlling the lifting and the folding of the tower body; and the cross arm folding mechanism is respectively connected with the cross arm and the tower body and used for controlling the folding of the cross arm. The invention has the advantages that the structure is simple; the more manufacture cost is saved than the traditional self-lifting tower crane; the tower body can be stretched and shrunk in the jacket of the tower body; the tower crane can lift enough height for low-storey buildings of about 6 storeys so as to solve the problem of insufficient lifting height of a vehicle-mounted crane; the tower body and the lifting cross arm of the fast-loading tower crane of the invention are in a folded state in a consignment state or an off state; and the fast-loading tower crane has the advantages of convenient transportation and good market prospects.

The long span bridge erecting apparatus and process belongs to the field of traffic technology, and is especially suitable for constructing military long span bridge in wartime. The long span bridge erecting apparatus consists of chassis, arm folding crane, erecting platform, leading-in girder unit, leading-in girder sheath, movable stand, chassis frame and bridge section. The long span bridge erecting apparatus has lowered erecting height, convenient transportation, composite structure and high reliability. The present invention has short construction period, low operation plane and relatively simple construction and other advantages.

An articulated robot arm or the like comprising a base, an upper section which is pivotally secured to the base at a shoulder joint, one or more middle sections pivotally secured to the upper section at an elbow joint, a lower section pivotally secured to the middle section at an wrist joint and a final section pivotally secured to the lower section. A main arm folding apparatus comprising an upper timing linkage, one or more middle timing linkages and lower timing linkage. The first lead gear of the main arm folding apparatus is fixed to the main drive pivot coaxial with the shoulder joint, the last slave gear of the arm folding apparatus is fixed to the final section. None of the other sections is fixed to the arm folding apparatus. That allows the arm to adapt its shape while folding around an object thus distributing pressure along its surface. The integration of the supplementary arm folding apparatus, similar to the main arm folding apparatus and linking said final section with the supplemental drive pivot coaxial with said shoulder joint, allows implementation of the controlled stiffness via internal preloading of the arm. Each timing linkage could be implemented as a set of sprockets linked by chain (or timing belt) or gears linked via a parasite gear. Coordinated operation of a system comprising two or more robot arms allows manipulation of large fragile objects.

The invention discloses a folding mechanism for an arm of an unmanned aerial vehicle. The folding mechanism comprises an arm connection base and an arm folding base arranged on the arm. One end of the arm folding base is hinged to the arm connection base. A folding mechanism body is arranged on the arm connection base. The folding mechanism body is movably connected with the other end of the arm folding base and comprises an outer handle and an inner handle. One end of the inner handle is hinged to the arm connection base, and the other end of the inner handle is sleeved with an outer handle rotary shaft. One end of the outer handle is hinged to the outer handle rotary shaft, and the other end of the outer handle is provided with a connection part movably connected with the arm folding base. The inner handle is further provided with a locking structure for locking the inner handle. The folding mechanism for the arm of the unmanned aerial vehicle is convenient to operate, and dual locking is achieved; and besides, an elastic assembly is arranged between two metal parts, so that the gap between the metal parts is eliminated, stability is improved, and the service life is prolonged.

A drogue attachment consisting of two symmetrical shaped arms is affixed to one end of a shaft, that end of the shaft being attached to a fishing line. The other end of the shaft is tied to a leader, which is in turn tied to a baited or lure-equipped fish hook device. When the fish hook device is pulled through the water by a fish, water opens the shaped arms; when pulled in the other direction by the angler, the arms fold in against the shaft.

The invention relates to a unilateral arm-folding type spiral material leveling machine. The unilateral arm-folding type spiral material leveling machine comprises an anti-deviation device, a spiral material leveling and pushing mechanism, an arm support system, a driving cab device, a slewing mechanism, a running mechanism, a spiral regulating oil cylinder, an upper arm oil cylinder and a driving cab lifting oil cylinder, wherein a sensor connecting bracket of the anti-deviation device is fixedly connected to two sides of a spiral bracket; a lower arm connecting seat of the spiral material leveling and pushing mechanism is connected with the hinge point at the head of the lower arm of the arm support system; the hinge point at the tail of the upper arm of the arm support system is connected with the upper arm supporting seat of the slewing mechanism; the hinge point at the tail of the driving cab bracket of the driving cab device is connected with the supporting seat of the driving cab bracket of the slewing mechanism; the lower end surface of a slewing platform is connected with the upper end surface of a slewing bear of the running mechanism. The running mechanism walks on the ground, and the running speed is high. The material pushing capacity of the spiral material leveling and pushing mechanism is strong, and scanning type material leveling operation can be performed on a whole railway compartment in the length direction of a track. The unilateral arm-folding type spiral material leveling machine disclosed by the invention can adapt to various complex terrains without any auxiliary equipment, and has the characteristics of being good in material leveling effect, high in adaptability, safe and reliable and the like.

The invention provides a device for protecting a nose landing gear of a rodless aircraft tractor. The device is mainly characterized in that a herringbone pull rod mechanism is connected with a machine body by knuckle bearings; the other end of the herringbone pull rod mechanism is connected with a lifting platform by a torque sensing mechanism; the two ends of a lower pull rod mechanism are respectively connected with the machine body and the lifting platform by the knuckle bearings; an aircraft wheel retaining mechanism is connected with the lifting platform by pin shafts; the two ends of a lifting cylinder are connected with the machine body and the lifting platform by the knuckle bearings; retractable arms are connected with the lifting platform by cushion blocks; arm folding mechanisms are connected with the retractable arms by the pin shafts and are driven through an arm folding cylinder between the arm folding mechanisms and the retractable arms; pin plugging mechanisms are connected with the arm folding mechanisms by bolts; and ground contact wheels are connected with the lifting platform by the pin shafts and baffle plates. The device has the advantages that when the aircrafts of the category listed in the application range of the rodless aircraft tractor are dragged and pushed, the nose landing gear of the aircraft is protected reliably, and the problem that the damage to the nose landing gear of the aircraft and the heavy economic loss are uncertain to avoid when various functions and performance parameters of the rodless aircraft tractor are detected is solved.

An arm-folding mechanism for use in a vehicle-mounted radiation imaging system. The vehicle includes a vehicle body behind a driving cab. The vehicle body includes a generator cabin and a control cabin. The arm-folding mechanism includes a vertical detection arm, a main arm frame, and a hinged mechanism hingedly connecting the vertical detection arm with the main arm frame. The hinged mechanism includes: a first connection arrangement having a free end and a fixed end fixedly connected with or integral with the main arm frame; a second connection arrangement fixedly connected with the vertical detection arm; and an intermediate arrangement connecting the first connection arrangement with the second connection arrangement so that the vertical detection arm can rotate relative to the main arm frame. The bottom of the first connection arrangement is at the same level as or above the bottom of the main arm frame.

The invention discloses a deformable folding structure of a multi-rotor type aircraft, comprising an upper carbon plate, a lower carbon plate and a plurality of support rods, wherein the upper carbon plate and the lower carbon plate form a rack, and the support rods are supported between the upper carbon plate and the lower carbon plate; a lead screw perpendicular to the lower carbon plate and a steering engine for driving the lead screw to rotate are arranged in the rack; a slide block assembly is arranged on the lead screw; a plurality of engine arms are arranged around the slide block assembly; fixed support arms perpendicular to the lower carbon plate are respectively arranged at two sides below each engine arm on the lower carbon plate; the tops of the fixed support arms are articulated with the engine arms; a plurality of chutes are arranged on the slide block assembly; and the end of each engine arm is connected with a slide shaft capable of sliding horizontally along a chute. According to the folding structure, the lead screw connected with the single steering engine rotates to drive the slide block assembly connected with each engine arm to move so as to realize the folding and unfolding of each engine arm; by virtue of the arrangement of the chutes in the slide block assembly, the connection between the engine arms and the slide block assembly can be automatically adjusted according to the running of the slide shafts in the chutes, and a larger engine arm folding angle can be achieved without a multi-link structure; the structure enables the folding structure of the aircraft to be optimized; and because the structure is simplified, a better folding effect can be achieved. The deformable folding structure is applied to the field of aircraft devices.

The invention relates to a USB C type plug connector, comprising an insulating body, two metal ground lugs, an upper terminal module, a lower terminal module and a front metal shell, wherein the insulating body comprises a top, a bottom, two opposite side parts connecting the top and the bottom, and a butt joint hole encircled by the top, bottom and two side parts, the top and the bottom are respectively provided with a through hole communicating with the butt joint hole, one ground lug is fixed at the top of the insulating body, the other ground lug is fixed at the bottom of the insulating body, arc-shaped abutting arms folding and stretching backwards are arranged at the front ends of the two ground lugs, the abutting arms penetrate through the through hole and then enter the butt joint hole, and the abutting arms have good elasticity, so that the elastic recovery capability is improved, and the service life can be prolonged.

The invention discloses an arm folding device of a multi-axial air vehicle. The arm folding device comprises a first frame, a second frame, a fixing shaft, a rotating shaft, a telescopic module and an arm tube. The arm tube is connected with the first frame and the second frame through the rotating shaft, and the telescopic module is installed between the two frames and fixed through the fixing shaft. When an arm is folded or unfolded, the telescopic module plays a role in clamping round grooves in the arm tube. An arm folding part is connected with a vehicle body and the arm, limiting is achieved through the telescopic module and the grooves in the arm tube, and then folding of the arm is achieved. After the arm folding device is installed on the vehicle body of the air vehicle, no auxiliary tool is needed in the folding process; the arm folding device is simple and reliable in structure and convenient to use and solves the problems that a multi-axial air vehicle is difficult to carry as arms of the multi-axial air vehicle can not be folded, and auxiliary tools are needed when folding is carried out through an existing folding device.

The invention discloses an aircraft arm folding device of a multi-rotor-wing aircraft. The aircraft arm folding device comprises a first mounting plate, a second mounting plate, an aircraft arm fixing clamp, a clamping tenon and a rotating shaft screw, wherein upper holes and lower holes are symmetrically formed in the edges of one end of the first mounting plate and one end of the second mounting plate; the aircraft arm fixing clamp consists of a base plate and a cylindrical aircraft arm mounting clamp; the cylindrical aircraft arm mounting clamp is fixedly mounted on the base plate; an upper hole and a lower hole are formed in the upper edge and the lower edge of the base plate; the rotating shaft screw penetrates through the lower hole of the first mounting plate, the lower hole of the base plate and the lower hole of the second mounting hole in sequence to mount the aircraft arm fixing clamp between the first mounting plate and the second mounting plate in a rotatable manner; when an aircraft arm of the multi-rotor-wing aircraft needs to work, the clamping tenon penetrates through the upper hole of the first mounting plate, the upper hole of the base plate and the upper hole of the second mounting plate in sequence; and when the aircraft arm of the multi-rotor-wing aircraft needs to be folded, the clamping tenon is pulled out. According to the aircraft arm folding device of the multi-rotor-wing aircraft, the multi-rotor-wing aircraft arm can be folded when being not in use, so that the size of an aircraft body is reduced, and the aircraft arm folding device is convenient to carry.

The invention provides a knife switch state refined detection and identification method comprising the following steps: inputting a knife switch image to be detected, and preprocessing the image; inputting the image into a pre-trained deep learning module to judge the opening and closing states of the knife switch, and if the knife switch is in the opening state, directly outputting a judgment result and ending the detection; if the knife switch is in the closed state, judging the type of the knife switch to be detected, if the knife switch is a double-arm folding knife switch, sharpening theimage, extracting a characteristic value in the image, carrying out characteristic coding on the characteristic value, then identifying to obtain position information of two vertical double arms according to the characteristic code, calculating the closing degree of the knife switch, outputting and ending the detection; and if the knife switch is a double-column rotary knife switch, carrying out edge detection on the image, selecting a circular area on the edge to obtain rough position information of the knife switch, carrying out linear detection and positioning on the image to obtain accurate positions of two sections of conductive knife switches, calculating the closing degree of the knife switch, outputting and ending the detection.

The invention discloses a header folding mechanism, belongs to the technical field of machine manufacturing, and aims at solving the problem that in the prior art, a harvester cannot walk easily due to the fact that the header width is too large. The header folding mechanism comprises a connecting arm folding structure, a header skeleton, a hydraulic cylinder and pins. The pins comprise the first pin, the second pin, the third pin and the fourth pin, folding arms comprise a first connecting arm and a second connecting arm, the header skeleton comprises a hydraulic cylinder support, a left side header skeleton body and a middle header skeleton body, and the left side header skeleton body is connected with the middle header skeleton body through a fifth pin; the first connecting arm is connected with the left side header skeleton body through the first pin, the second connecting arm is connected with the first connecting arm through the second pin and connected with the middle header skeleton body through the third pin, the hydraulic cylinder is connected with the second pin and connected with the hydraulic cylinder support through the fourth pin, and the hydraulic cylinder support is connected with the middle header skeleton body. The header folding mechanism is simple in structure and ingenious in design, and transportation of large headers is convenient.

A wheelchair is provided which includes driving wheels, side frame, footrest arms, and footrest plates. The driving wheels are rotatably coupled to the exterior sides of the side frames. The footrest arms are movable between arm unfolded and folded positions. Each of the footrest arms is pivotably coupled to an arm pivot shaft. The arm pivot shaft is positioned on the exterior side of each of the side frames in front of each of the driving wheels. The footrest plates can support user's feet. Each of the footrest plates is coupled to the fore end of each of the footrest arms. The distance between the fore ends of the footrest arms in the arm unfolded position is smaller than the distance in the arm folded position.

The invention discloses a control method of a folding arm type dual-arm bridge detecting vehicle. The control method includes the dual-folding-arm unfolding control method, the dual-folding-arm folding control method, the two-horizontal-arm included angle control method, and the telescopic arm control method. The dual-folding-arm unfolding control method and the dual-folding-arm folding control method include the step of driving a first rotating mechanism, a second rotating mechanism, a first hydraulic cylinder, a second hydraulic cylinder, a third hydraulic cylinder, a fourth hydraulic cylinder, a fifth hydraulic cylinder, a sixth hydraulic cylinder and telescopic arm hydraulic cylinders so as to fold and unfold the dual folding arms. The two-horizontal-arm included angle control method includes the steps of driving the folding or unfolding amount of a first telescopic arm and the second telescopic arm so as to control the angles of two main arms. The telescopic arm control method includes the steps of controlling the swing amplitude of the telescopic arms by driving a fourth rotating mechanism and a fifth rotating mechanism, controlling the movements of the telescopic arms by driving ball hinge mechanisms, controlling the rotation movements of detecting devices by driving rotating tables, and controlling the working radius of the telescopic arms by driving stroke hydraulic cylinders of the telescopic arms.

The invention relates to improvement of a single-ended fluorescent lamp slice pipe bending and molding device, which is characterized in that: a plurality of mechanical arm folding / separating pipe bending devices are alternately arranged on the periphery of a turntable in clearance rotation, and at least can perform radial expansion; and a glass tube heating and softening device and a separating / folding mould are arranged on the radial outside of the turntable. Compared with the prior art, a pair of mechanical arms is needed only, and can complete the whole process of pipe bending to pipe unloading, and continuous pipe bending operation after connecting pipes on the heating and softening device, so the single-ended fluorescent lamp slice pipe bending and molding device not only saves a pair of mechanical arms, but also obviously improves production efficiency by over 15 percent; no connection action exists, so bent pipes cannot be deformed, and the mould-in qualification rate can be improved by over 15 percent; and a pair of mechanical arms completes the whole process of bending pipes, so the single-ended fluorescent lamp slice pipe bending and molding device saves the waste of process connecting pipe sections in the prior pipe bending process, can save about 20mm of glass tube on two end heads for bending the slice pipe with the same specification, and can be suitable for bending and molding slice pipes of which the straight pipe sections are short.

The invention provides a multi-functional convertible arm folded chair, which is characterized in that it integrates folded parts in every direction together, and the arm folded chair just needs to be folded into plate, or is converted into rolling chair, shopping cart, children's vehicle, wheel chair, photo-taking tripod rest, movable imaging trammer and outdoor umbrella by folding or pulling different parts. Furthermore, the blue part can be installed on rear frame of motorbike or bike, ehich can be used as folded basket and children carrying vehicle or cushion; if it is equippd with pulling wheel and bar, it can be used as small portable shopping vehicle. Because it can be used as shopping vehicle, it can help to reduce plastic bag usage and protect environment.

The invention discloses a folding massage chair which comprises a main folding support. The main folding support is in an inverted Y shape and comprises a long rod and a short rod. A hip folding support, arm folding supports, a leg placement frame and a head folding support are connected to the main folding support. The hip folding support is a right-angled straight rod forming right-angled connection. One end of the leg placement frame is connected to the lower end of the long rod, and the other end of the leg placement frame is connected to the lower end of the short rod. The head folding support comprises a rotating rod hinged to the top of the long rod, a supporting rod hinged to the rotating rod, and an angle adjusting rod hinged to both the rotating rod and the supporting rod. The rotating rod, the supporting rod and the angle adjusting rod form a triangle. A head supporting plate is connected to the supporting rod. According to the folding massage chair of the structure, an original forward sitting mode is replaced with a backward sitting mode, the back is exposed, massage is facilitated, complete massage on the sitting posture is achieved, and the massage comfort degree is improved.

The invention relates to a steep hill forest land oil tea fruit picking method and device. A picking arm bottom disc is fixedly installed on a hollow supporting rod of the steep hill forest land oil tea fruit picking device; three hinges a are installed on the picking arm bottom disc; a group of picking arms are hinged to every hinge a; a hollow pipe is fixed in the center of the picking arm bottom disc; a sleeve sleeves the hollow pipe; three groups of hinges b are installed on the sleeve; every group of hinge b and the corresponding picking arm are hinged through a connecting rod; narrow frames are fixedly installed on the picking arms; a direct current motor is installed on lateral plates of the narrow frames; a motor shaft is connected with a picking head; the direct current motor drives the picking head to rotate; the lower portion of the hollow supporting rod is provided with a rotary disc; the sleeve and the rotary disc are in wire wrapping through a rope; rotation of the rotary disc can drive the sleeve to vertically move through the rope; the sleeve drives the picking arms to open and fold toward the center through the connecting rods; the picking device passes through a narrow gap between branches when the picking arms fold; the rope is loosened when the picking device achieves a picking position to enable the three groups of picking arms to open outward to pick respectively. The steep hill forest land oil tea fruit picking device improves the picking efficiency, and is simple in structure and convenient to use.

The present invention is cable winding method for hoisting-arm folding mechanism of light duty folding arm type tower crane. The steel cable has the end wound through the guide pulley IV in the tip of the front arm and fixed onto the guide pulley I of the arm folding pulley block; and specifically, the steel cable is wound successively through the hoisting drum, the guide pulley II, the guide pulley III, the beveling pulley, the hoisting pulley of the amplitude varying bogie, the hook pulley, the guide pulley IV, the guide pulley V, the guide pulley VII and the arm folding pulley block before the end is fixed onto the guide pulley I. During hoisting, the steel cable is fixed to the front arm; and during folding the arms, the steel cable fixation is released, the hoisting mechanism is operated to hoist the front arm to certain angle and the back arm guy cable is regulated, so that the tower crane enters the arm folding state, having no need of re-winding the steel cable.

A wheelchair is provided which includes driving wheels, side frame, footrest arms, and footrest plates. The driving wheels are rotatably coupled to the exterior sides of the side frames. The footrest arms are movable between arm unfolded and folded positions. Each of the footrest arms is pivotably coupled to an arm pivot shaft. The arm pivot shaft is positioned on the exterior side of each of the side frames in front of each of the driving wheels. The footrest plates can support user's feet. Each of the footrest plates is coupled to the fore end of each of the footrest arms. The distance between the fore ends of the footrest arms in the arm unfolded position is smaller than the distance in the arm folded position.

The invention relates to a connection structure of a tension spring type balance spring of a double-arm folding type high-voltage alternating current isolating switch. The connection structure comprises a crank arm, a tension spring, an adjusting joint, an adjusting screw rod and the like, wherein the adjusting joint is an 'n'-shaped frame; the opening end of the adjusting joint is hinged with the crank arm through an axle pin; a through hole for the rod part of the adjusting screw rod to pass through is formed at the other end, opposite to the opening end, of the adjusting joint; the head part of the adjusting screw rod is positioned in the 'n'-shaped frame; an axial gap is reserved between the head part of the adjusting screw rod and the adjusting joint; the rod part of the adjusting screw rod extends out of the through hole of the adjusting joint to be spirally connected with the tension spring; and the other end of the tension spring is hinged with a fixed support. The connection structure effectively avoids the rebound phenomenon in the on / off process of a main knife switch, balances the applied force of the tension spring and is stretched stably. The connection structure hasthe characteristics of reasonable structure, good balance effect of the tension spring, stable action, high reliability and the like.

The invention relates to the technical field of agricultural unmanned aerial vehicles and discloses a multi-purpose multi-rotor foldable arm of an agricultural unmanned aerial vehicle. The multi-purpose multi-rotor foldable arm comprises an arm pipe front section (2), an arm pipe rear section (7), an arm folding fastener and an arm fixing base (8), wherein the arm fixing base (8) is installed at the tail of the arm pipe rear section (7). The multi-purpose multi-rotor foldable arm is characterized in that the arm further comprises a multifunction motor base (1) installed at the other end of the arm pipe front section (2); the arm folding fastener comprises a front folding fastener pipe clamp (3) and a rear folding fastener pipe clamp (6); the tops of the other ends of the front folding fastener pipe clamp (3) and the rear folding fastener pipe clamp (6) are each provided with a positioning plane (16); and one ends of the two positioning planes (16) are connected through a rotary fixing bolt (15), and the planes can be matched with each other. Through arrangement of the arm folding fastener, the height of the unmanned aerial vehicle is substantially reduced after the unmanned aerial vehicle is stored, the appearance is attractive, and assembling and disassembling are convenient.