10 results about "Arm folding" patented technology

1. The name of the design product: chair (papaya arm folding chair). 2. The use of the design product: furniture for rest. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1. 5. The bottom of the design product is the part that is not easy to see or cannot be seen during use, and the top view is omitted.

The utility model provides a boat support buffer position carrying manipulator with an upper and lower arm folding structure, which comprises a carrying assembly, the carrying assembly comprises two support frames, two upper linear modules, an upper mounting seat, a guide frame, a lower linear module, a lower mounting block, two boat support clamping jaws, a support plate and a middle clamping jaw; the two upper linear modules are installed on the inner top walls of the two supporting frames correspondingly. The telescopic mechanical arm structure can be formed through combination of the upper linear module and the lower linear module, when the mechanical arm structure is located at the buffering position, the upper linear module corresponds to the lower linear module in position, namely, the mechanical arm structure is in a folded state, the size of the mechanical arm is reduced at the moment, space in the X-axis direction is saved, and when the mechanical arm structure works, the mechanical arm is not prone to falling off. The upper linear module drives the upper mounting base to move along the X axis, the lower linear module drives the lower mounting block to move along the X axis, at the moment, the mechanical arm is unfolded from the folded state, and the quartz boat can be carried.

The application discloses a handrail bending equipment for sofa production and relates to the field of sofa production.The handrail bending equipment comprises a rectangular frame, two supporting blocks and a bending assembly, further comprises an adjusting assembly capable of adjusting the distance between the two supporting blocks and a protection mechanism, the two supporting blocks are arranged in the interior of the rectangular frame and are slidably connected with the lower inner side wall of the rectangular frame, the opposite sides of the two supporting blocks are both arranged in an inclined manner, the adjusting assembly is arranged in the interior of the rectangular frame, two bidirectional threaded rods in the adjusting assembly are respectively arranged horizontally on the front and back sides of the interior of the rectangular frame, and the rod walls of each bidirectional threaded rod are threadedly connected with the two supporting blocks at both ends. The application can press and fix the two ends of the metal plate during the bending of the metal plate, can protect the surface of the plate, thereby preventing the metal plate from bouncing out and preventing the metal plate from flying out when the metal plate is broken, avoiding the harm to the operator, improving the safety and being convenient for people to use.

A drone includes arms rotatable between an extended position and a retracted position. Coupling mechanisms are operable to retain the arms in their extended position. The coupling mechanisms each include a latch being movable from an engaged position in which the relevant arm is held in its extended position and a release position in which the relevant arm is free to move between its extended position and its retracted position. The latches are biased towards their engaged positions. Each coupling mechanism may include a lock that holds the latch in its release position, the latch being released from the lock by rotation of the first arm into its extended position. Release of the latch engages a cam on the relevant arm to hold it in its extended position.

The utility model relates to the technical field of hoisting equipment, in particular to a lifting hoist folding arm crane which comprises a square stand column, a first rotating arm and a second rotating arm. A linear guide rail is arranged on the square stand column, the sliding block is connected with the cantilever installation base, the first rotating arm is hinged to the installation base, the second rotating arm is connected with the first rotating arm through the rotating joint assembly, and the hook is arranged on the second rotating arm. And the electric hoist drives the cantilever mounting seat to move along the guide rail to lift the hoisted object. Swing of a hoisted object is reduced by enabling the hoisted object to be close to the hook, and flexibility is improved through the secondary folding arm design. Damping pieces are further arranged to adjust rotation resistance, and sliding rails are arranged to adjust the positions of the hooks. Swing and collision of a hoisted object in the hoisting process can be effectively avoided, and the operation flexibility and safety are improved.

This invention discloses a fender double-arm deployment and retraction frame, which includes a base plate, two cranes respectively located at both ends of the base plate, at least one rubber fender placement frame located between the two cranes, and a hydraulic winch mounted on the base plate. Each crane includes a boom rotatably connected to the base plate, a hydraulic cylinder for driving the boom rotation, a rope guide assembly, a hook assembly, and a rope energy recovery device. The rope is a continuous steel wire rope, and the hydraulic winch simultaneously controls the deployment and retraction of the ropes of both booms. The rope energy recovery device includes a mounting base, a drive wheel, a sliding base, a sliding component, a sliding wheel, and a hydraulic rod. It compensates for changes in rope length by moving the sliding wheel and, in conjunction with an overflow valve, provides overload protection. An anti-steering departure device is provided at the boom head to prevent rope misalignment. This invention solves the problems of limited coverage of deck cargo cranes, easy collisions during fender lifting, and dynamic load impacts under high sea states, and has the advantages of compact structure and safe and reliable operation.

This invention provides a control method and system for a dual-arm folding robot, belonging to the field of robot control technology. The control method constructs a perception-to-control closed loop by fusing visual, force, and tactile multimodal data. Tactile and force sensing compensate for the blind spots of vision in self-occlusion scenarios, improving the perception of grasping, sliding, and folding. A joint representation of clothing based on a visual semantic network structurally encodes geometric shapes, semantic components, and confidence levels, providing a robust state for planning that integrates prior knowledge and real-time observations, reducing decision-making errors caused by deformation and noise. A hierarchical strategy decomposes long-term folding into sub-objective sequences and uses multimodal data to correct the action closed loop, achieving coordinated control of grasping, folding, and folding. Finally, torque commands are generated based on the control algorithm to ensure smooth and safe interaction, comprehensively improving the folding success rate and operational stability of the dual-arm folding robot under different materials, sizes, and initial shapes.

The invention discloses a finite element analysis method for an arm folding mechanism of a heavy-load unmanned aerial vehicle, which relates to the technical field of finite element analysis and comprises the following steps: establishing a finite element model of the arm folding mechanism; performing statics analysis on the finite element model to obtain the maximum deformation and equivalent stress distribution of the arm folding mechanism under the action of a preset load; modal analysis is conducted on the finite element model, and the front multi-order modal shape and inherent frequency of the arm folding mechanism are obtained; based on the results of statics analysis and modal analysis, a topological optimization mathematical model with the material density as a variable is established, topological optimization calculation is executed, and an optimal material distribution scheme of the arm folding mechanism is obtained; reconstructing a solid model based on the optimal material distribution scheme; and performing verification analysis on the reconstructed entity model, and if a preset use condition is met, determining that the current entity model is a final target entity model. According to the invention, concentrated distribution of the material in a stress key area and reasonable weight reduction of the material in a non-key area can be realized.

This invention provides a three-folding deployment device for space surface operations, characterized by comprising a two-dimensional drive mechanism, a main arm, a rear arm, a front arm, a rear arm folding / deploying mechanism, a front arm folding / deploying mechanism, a rear arm linkage assembly, and a front arm linkage assembly. One end of the two-dimensional drive mechanism is mounted on the space surface probe platform, and the other end is connected to the main arm. One end of the rear arm is connected to the main arm, and the other end is connected to the front arm. The rear arm folding / deploying mechanism connects the main arm and the rear arm, and together with the rear arm linkage assembly, controls the folding / deployment of the rear arm. The front arm folding / deployment mechanism connects the rear arm and the front arm, and together with the front arm linkage assembly, controls the folding / deployment of the front arm. The end of the front arm is extendable, configurable with different working tools, enabling various functions such as capture, lifting, transfer, forking, clamping, digging, and cutting. This invention features a simple structure, high reliability, light weight, wide operating range, multiple application scenarios, applicability to the gravity environment of space surfaces, and convenient space transportation through folding and compression.