1119results about How to "Achieve folding" patented technology

The invention relates to a wing folding mechanism for an unmanned plane. The wing folding mechanism comprises a first sleeve, a second sleeve, a support shaft, a locking part, a tractive part and a connecting rod, wherein the first sleeve is provided with a first cavity; the second sleeve is provided with a second cavity; the support shaft is arranged in the first cavity in a slidable manner; the locking part is mounted on the side face of the first sleeve and has a locking state and an unlocking state; the tractive part is fixed in the second cavity and can move back and forth in the shaft axis direction of the first sleeve; the connecting rod is used for connecting the support shaft and the tractive part; the wing folding mechanism has an unfolding state and a folding state. On one aspect, part of the folding mechanism enters the support shaft of the second cavity, so that the folding mechanism is in the unfolding state; on the other aspect, under the action of the tractive part, the connecting rod enables the first sleeve to rotate relative to the end face of the second sleeve, so that the folding mechanism is in the folding state, as a result, both the unfolding and folding states are realized without a wheel gear serving as a transmission part; in addition, the wing folding mechanism is compact in structure and stable in motion, and few requirements are required for the torque of a motor.

The invention discloses a telescopic positioning device and application thereof and belongs to the technical field of telescopic connection. Engaging positioning or separation telescopic type connection is achieved through convex and concave engaging mechanisms which are evenly and continuously distributed; each convex and concave engaging mechanism comprises a convex tooth component and a groove component engaged with or disengaged from the convex tooth component; the engaging portion of each convex tooth component is provided with at least one partition groove in the cross section perpendicular to the relative displacement direction so that the two parts can stretch out and draw back and can be positioned; the convex and concave engaging mechanisms comprise the rotating engaging mechanism of non-complete round threads, the wedge expansion engaging mechanism and the rotating engaging mechanism of a non-circular cross section cam shaft; and the rotating engaging mechanism of the non-complete round threads can be applied to functional mechanisms of lifting and folding position restoration of bike seats or bike handlebars. The telescopic positioning device achieves the fast telescopic adjusting, locking and positioning through the threads or a pawl mechanism. Compared with a similar hydraulic or pneumatic mechanism, the telescopic positioning device is easy to manufacture, low in weight and reliable in performance, and cost is substantially reduced.

The invention belongs to the technical field of geometric measurement device verification devices, relates to a laser rangefinder verification device, and particularly relates to a laser rangefinder verification device based on the principle of error cancellation and a verification method thereof. The laser rangefinder verification device comprises a verification table. A fixing adjustment deviceis installed in the fixed end of the verification table. The fixing adjustment device is used for fixing a laser rangefinder to be verified. After the fixing adjustment device fixes a laser rangefinder to be verified, a self-walking target vehicle is installed in the verification table. A mobile reflection apparatus is installed in the self-walking target vehicle. A reflection target and at leastone fixed reflection apparatus are installed beside the fixing adjustment device at the fixed end of the verification table. A measurement reflector is installed at the rear end of the mobile reflection apparatus inside the self-walking target vehicle. A laser interferometer is installed at the end of the verification table away from the fixed end. The measurement reflector is used for reflectinga laser beam emitted by the laser interferometer.

The invention relates to a flow diagram generating method and device. The method comprises establishing nodes according to the types of required nodes; selecting father nodes and child nodes from the nodes and placing the child nodes inside the father nodes to establish the father-child relationship among the nodes; according to the sequential relationship between the father nodes and the child nodes and other nodes, establishing the connection relationship between the father nodes and the child nodes and other nodes to generate a flow diagram. The embodiment of the flow diagram generating method and device achieves the automatic establishment of the father-child relationship and the connection relationship between the father process and the child processes of the flow diagram and further achieve folding and unfolding of the child processes, thereby reducing the difficulty of diagram drawing and maintaining.

The invention relates to the field of fitness equipment, and provides domestic multifunctional fitness equipment comprising a leg supporting plate and a back supporting plate which are symmetrically connected to a central shaft, and a left supporting leg and a right supporting leg. The leg supporting plate and the back supporting plate are both symmetrically provided with two slide grooves, and a plurality of grooves are evenly formed in the upper walls of the slide grooves; the tops of a left supporting rod and a right supporting rod are transversely provided with guide rods, and the guide rods slide in the slide grooves of the leg supporting plate and the back supporting plate and are capable of being clamped in the grooves in the upper walls of the slide grooves for positioning; the tail ends of the left supporting rod and the right supporting rod are respectively connected to the left supporting leg and the right supporting leg through hinges or shafts; the tail ends of the left supporting leg and the right supporting leg are respectively connected to a left half base frame and a right half base frame, which are connected through a pivot, through hinges or shafts; the domestic multifunctional fitness equipment further comprises two tensioning devices clamped in different positions of the left half base frame and right half base frame through clamping rings. The domestic multifunctional fitness equipment can be used for training the abdomen, waist, chest, back, arms and legs of a human body in different strengths and is convenient to adjust and fold.

The invention discloses a novel adjustable accordion conveyer and relates to the technical field of conveyers. The novel adjustable accordion conveyer comprises a bottom plate. The two sides of the top of the bottom plate are fixedly connected with first connecting plates. A lead screw is fixedly connected to the centers of the first connecting plates. A limiting block is fixedly connected to thecenter of the lead screw. A first sliding block and a second sliding block are fixedly connected to the positions, located on the two sides of a limiting frame, of the surface of the lead screw correspondingly. The top of the first sliding block and the top of the second sliding block are rotatably connected with a first connecting rod and a second connecting rod correspondingly. Through the noveladjustable accordion conveyer, the problems that the height of conveys adopted in a factory at prevent is fixed generally, equipment with the different heights needs to be equipped with different conveyers, the occupied space is large, the economy is consumed, the sizes of the conveyers are large and do not facilitate transportation and storage of the conveyers and the cargo flow is blocked due to splicing of two small conveyers are solved.

Provided is an automatic silk stocking packaging production line. The automatic silk stocking packaging production line comprises an automatic bagging mechanism, an automatic glue injection and sealing mechanism and an automatic boxing and sealing mechanism. Silk stockings sequentially pass through all the mechanisms on a conveying belt, the automatic bagging mechanism is used for automatically conveying the silk stockings into packaging bags after folding the silk stockings on a paper board, and the automatic glue injection and sealing mechanism is used for injecting glue to bag openings of the packaging bags containing the silk stockings and automatically sealing the bag openings. The automatic bagging and sealing mechanism is used for automatically putting the packaging bags containing the silk stockings into paper boxes and automatically sealing openings.

The invention discloses a rotating mechanism and a folding terminal. The rotating mechanism comprises a guide shaft, at least two rotating pieces and at least two constant-length units, and the rotating pieces are arranged on the two sides of the guide shaft. An arc-shaped groove is formed in the guide shaft; an arc-shaped part is arranged on the rotating piece and is arranged in the arc-shaped groove in a sliding manner. The constant-length unit is in a long-strip shape which has a fixed length and can be bent, the positioning end of the constant-length unit is fixedly or rotationally connected with the rotating piece located on one side of the guide shaft, and the sliding end of the constant-length unit is slidably connected to the rotating piece located on the other side of the guide shaft. The folding terminal is provided with the rotating mechanism. Through cooperation of the arc-shaped groove and the arc-shaped part, the two rotating pieces can rotate relative to the guide shaft,and then folding is achieved; when the rotating piece rotates around the guide shaft, the sliding end of the constant-length unit slides relative to the rotating piece, so that the total length of the folding terminal on the plane where the flexible screen is located is not changed, the flexible screen can bear the minimum external force in the folding process, the flexible screen is protected, and the service life is prolonged.

The invention provides a foldable display device. The foldable display device comprises a flexible display panel and a panel supporting part, the flexible display panel comprises a first display area, a second display area and a bent area, and the panel supporting part is fixed to the flexible display panel and comprises a first panel supporting frame and a second panel supporting frame; in a first state, the first panel supporting frame is stacked on the second panel supporting frame, the bent area is in a first bent shape, and the first display area and the second display area are folded; in a second state, the first panel supporting frame and the second panel supporting frame are unfolded, a containing space is formed between the first panel supporting frame and the second panel supporting frame, the bent area is in a second bent shape and is contained in the containing space, and the boundary portion of the first display area and the boundary portion of the second display area are connected in a butt-joint mode to form a flat display screen structure. According to the foldable display device, the problem that in the prior art, driving is difficult when the bent part of a foldable display device conducts displaying can be solved, and seamless displaying can be achieved in full-screen displaying.

The invention relates to a foldable tetrahedral structure with a single degree of freedom and a large folding-unfolding ratio, and discloses a foldable tetrahedral structure. The foldable tetrahedral structure comprises four folding units, six bar units and a symmetry axis, wherein the connection positions on the four folding units are connected with the connection positions on the six bar units through rotating pairs or spherical pairs, and a closed polyhedral structure is formed; and besides, the units and the kinematic pairs meet a series of symmetrical relationships and constraint conditions with respect to the symmetry axis, and therefore an octahedral structure capable of being folded into the tetrahedral structure is established. The foldable tetrahedral structure can achieve a folded state and an unfolded state stably, when being folded, the structure is small in size and convenient to launch or transport, and when being unfolded, a large working space is achieved. The whole foldable tetrahedral structure only has one degree of freedom and has the advantages that production and processing are easy, movement control is convenient, and reliability is high. The foldable tetrahedral structure has great significance and broad application prospects in numerous fields such as aerospace and civil engineering.

The invention discloses a folding mechanism for changing wingspan of wings. The folding mechanism is a rigid foldable structure which is used for changing the single degree of freedom and the large folding-expanding ratio of the wingspan of the wings based on a Sarrus mechanism. The single degree of freedom guarantees that the entire wings only need a driving motor, complexity caused by coordination and cooperation of a plurality of motors is avoided, besides, the self weight of the folded wings is greatly reduced, and the effective load of an aircraft is increased; the large folding-expanding ratio guarantees that the respects including the speed, the mobility, the loading capacity, the range and the like of the aircraft can be adjusted according to task requirements. Through the adoption of the mechanism, the wingspan of the wings is changed, the diversified functions of the aircraft can be realized, the performance indexes of the aircraft can be regulated, and enormous convenience is brought for the storage and the transportation of the aircraft; the entire mechanism only has one degree of freedom, so that the motion control is simple; the folding mechanism has the advantages of being simple to produce and process, convenient in motion control, high in reliability, high in precision and the like, and has important significance and broad application prospects in the field of variable geometry aircrafts.

The invention discloses a folding display method of rolling operation. The folding display method comprises the following steps of: receiving user input; establishing an event object in response to the user input; determining whether folding or dragging operation is caused by the event object or not; and imitating at least one folding or dragging call based on the caused folding or dragging operation. The invention provides the folding display method of rolling operation. Thus, the folding or expansion function of a selected item can be realized by a device applying the method.

The invention discloses a cable bracket with an umbrella-shaped automatic telescopic foot, which includes a support rod arranged in the vertical direction and has a wall thickness structure with a cavity, and also includes an umbrella-shaped automatic telescopic foot arranged at the bottom of the support rod The foot mechanism, the umbrella-shaped automatic telescopic foot mechanism includes a sliding sleeve and a fixed sleeve that are sequentially sleeved on the bottom of the support rod from top to bottom. Four connecting ears are respectively welded in each quadrant, and the connecting ears are parallel to each other and facing outward. A leg is pierced between two adjacent connecting ears on the sliding sleeve through bolts. Two connecting rods are perforated by bolts between the adjacent two connecting ears. In the present invention, the outriggers can automatically contract under the action of gravity, and the folding of the outriggers is realized through the movement of the sliding sleeve, which is convenient for carrying. At the same time, a stable triangular support structure is formed between the outriggers and the connecting rod after being opened, which is firm and reliable.

The invention discloses a wing folding mechanism suitable for folding a wing at any angle, relates to a wing folding mechanism, and aims to solve the problems that a rigid folding wing cannot meet the high requirements on low speed performance of an aircraft and flatness of the wing of the aircraft, an inflatable folding wing has low strength and rigidity and is easily instable under bending moment, and materials are easy to age at present. In a space rectangular coordinate system taking a direction which is along the axis of an aircraft body and points to front of the aircraft as an x axis positive direction and a direction which is along a connecting line of wing tips of two wings and points to the left side of the aircraft as a y axis positive direction, the direction vector of a rotating shaft and the rotation angle of a wing installation frame around the axis of the rotating shaft are shown in the specifications. The wing folding mechanism is used for an unmanned aerial vehicle.

The invention discloses a flat plate type automatic folding combined desk and chair. The flat plate type automatic folding combined desk and chair comprises a box body, driving mechanisms which are arranged in the box body, are used for lifting a seat mechanism and a desk surface mechanism and are symmetrically arranged, and a supporting mechanism for supporting a foot pedal. A controller used for controlling the driving mechanisms and the supporting mechanisms to be lifted is arranged on the rear portion of the box body. The driving mechanisms control a driving motor a through a controller to drive linkage rods to drive the seat mechanism and the desk surface mechanism to move relatively, so that ascending and descending of the seat mechanism and the desk surface mechanism are achieved. The supporting mechanism controls a driving motor c through a controller to drive the supporting mechanism to achieve automatic lifting. A push rod controls a driving motor b through a controller to drive the foot pedal to achieve lifting movement. The combined desk and chair can achieve automatic lifting and folding of multiple automatic combined desks and chairs through control of the controllers, the multiple combined desks and chairs are placed side by side, can be used as a dancing room floor after being folded and also can be used as a common lecturing classroom after being lifted. Using is convenient and easy, time and labor are saved, and the space utilization rate is improved.

The invention relates to a folding self-locking device for a seat back, which comprises a seat connecting board (21) pivoted with a transition board (22). The transition board (22) is pivoted with a chair back connecting board (24) and is fixedly connected with a locking block of a locking groove (223), the chair back connecting board (24) is pivoted with a locking buckle (26) through a locking shaft (241), and a restoring component is arranged between the chair back connecting board and the locking buckle (26), a locking part (261) of the locking buckle (16) is positioned in the locking groove (223) under the action of the restoring component to form self-locking, the locking buckle (26) is connected with an unlocking structure which drives the locking buckle (26) to rotate around the locking shaft (241) under the action of an external force, so as to achieve the unlocking of the locking part (261) and the locking groove (223). No matter which angle the seat back is positioned, the unlocking structure can be operated to fold the seat back, so the folding self-locking device is convenient to use the seat back remarkably.

The invention discloses a folding crane which comprises a master bracket, a hanging rack, a lifting device, at least one pair of support legs, and folding support mechanisms, wherein the master bracket is in a telescopic structure; the upper end of the master bracket is pivoted with and supports one end of the hanging rack; the lifting device is mounted at the other end of the hanging rack; the lower end of the master bracket is pivoted with one end of each support leg; one end of each support mechanism is pivoted with the master bracket; and the other end of each support mechanism is pivoted with each support leg. The folding crane can save a storage space greatly, and is convenient to carry, and the use flexibility and convenience are improved greatly.

The invention relates to a functionalized wide-width implanted microelectrode array, a manufacturing method and an application thereof. The functionalized wide-width microelectrode array comprises a functional layer, a base layer, a conducting layer and an insulating layer which are successively arranged. The functional layer is a monomolecular layer, a polymer material layer and/or a polymer compound layer, and has the thickness of 1 nm to 1000 micron. The invention also provides the manufacturing method of the functionalized wide-width implanted microelectrode array. By using the functionalized wide-width microelectrode array, through increasing the size of a microelectrode, a microelectrode bit point, a line, a spacing and other correlation parameters can be effectively adjusted so as to reduce a technology complexity during a microelectrode micro-machining process and greatly increase the yield of a high-cost microelectrode array, and the design problem of a high-density microelectrode array is solved; and through a functionalized wide-width design, a microelectrode array folding or curling function can be realized so as to realize minimally invasive implantation and greatly reduce an operation risk.

A synchronizing mechanism comprises first and second folding plates, a back cover, gear racks fixe to the back cover, fixing seats fixed to the first and second folding plates, sliding blocks limitedbetween the fixing seats and the folding plates, and gear sets limited on the gear racks; the first and second folding plates are each provided with a pair of fixing seats fixedly, and the sliding blocks are limited between the fixing seats; each fixing seat comprises a base fixed to the first folding plate or the second folding plate, a limiting part arranged on one side face of the base, and a limiting slot located on the side face of the base and below the limiting part; each sliding block comprises a sliding block main body, a limiting block extending toward the transverse outer side fromthe bottom surface of the sliding block main body and limited in the corresponding limiting slot, and damping blocks arranged on the two transverse side faces of the sliding block main body; and the side face of each limiting part is provided with at least two grooves. The application further provides a folding display device and communication equipment.

The invention discloses a foldable structure with a negative poisson ratio based on rigid origami. The foldable structure is formed by stacking N (N is more than or equal to1) basic units up and down,and each basic unit is symmetric to the adjacent basic unit in an up and down mode. Each basic unit is formed by repeatedly arranging one type of folding units, and each folding unit is composed of afirst unit and a second unit which both are parallelogram units. The side lengths of the parallelogram units are first side lengths and second side lengths, the adjacent parallelogram units are connected by a set of common edges of equal length, and the adjacent parallelogram units connected through the set of common edges are of different types, namely, the first units can only be connected withthe second units through the common edges. The four common edges intersect to form a vertex of the corresponding folding unit, and for four the common edges intersecting at each vertex, the common edges constitute mountain line creases and valley line creases of the corresponding folding unit separately.