17results about How to "Improve movement stability" patented technology

The invention discloses a tendon-rope-driven dexterous hand finger for metacarpophalangeal joint movement decoupling. A flexion and extension rotating joint and a side-sway rotating joint of the tendon-rope-driven dexterous hand finger are both of a bidirectional rotating structure controlled by a rope driver; the side-sway rotating joint is of a rolling meshing structure formed by two toothed plate components, rope guide wheels are arranged on the two toothed plate components, the two rope guide wheels are used for guiding and outputting a flexion and extension driving rope of the flexion and extension rotating joint and a side-sway driving rope of the side-sway rotating joint, and the winding directions of the flexion and extension driving rope on the two rope guide wheels are opposite. The two free ends of the side-sway driving rope are guided by the rope guide wheels to be arranged in a staggered mode. After the scheme is adopted, a transmission link capable of realizing side-sway motion and flexion-extension motion is decoupled, so that the effective length change of the flexion-extension driving rope caused by the side-sway motion is completely compensated geometrically, and the effective length of the flexion-extension link is kept constant at any side-sway angle; and the action stability and the repeated positioning performance of the fingers of the dexterous hand under the multi-posture and multi-load conditions are improved.

This utility model discloses a torque-limiting wrench, including a grip handle and an actuating disc. The grip handle has a movable cavity, and the movable cavity has a reset assembly. The reset assembly includes a connecting spring and a movable push rod. One end of the connecting spring is mounted on the movable push rod, and the other end of the connecting spring is mounted on the bottom of the movable cavity. A plurality of actuating grooves are evenly distributed circumferentially around the center of the actuating disc. The actuating disc is mounted on the grip handle via a connecting assembly. The connecting assembly includes a connecting support, a rotating connecting rod, and a rotating connecting head. The connecting support is connected to the grip handle, the rotating connecting rod is mounted on the connecting support, and the rotating connecting head is mounted on the rotating connecting rod. This design ensures that the torque applied to the working tip of the device is within a safe range, preventing damage to the device or affecting the fixing effect due to excessive or insufficient torque.

This invention belongs to the field of fiber optic connector technology and discloses a high-return-loss fiber optic connector and its manufacturing method. The connector includes a mounting sleeve with an inner cylinder inside. An outer cylinder is threaded onto the inner cylinder. A positioning ferrule is located inside the inner cylinder, and an optical fiber cable is located inside the positioning ferrule. A spring is located on one side of the positioning ferrule. A mounting base is threaded onto the inside of the mounting sleeve. This invention uses a locking lever to simultaneously engage the inner cylinder and the mounting sleeve, achieving anti-loosening positioning of multiple components. When the anti-loosening mechanism is triggered, the rotating ring synchronously drives the clamping plate to clamp the optical fiber cable. External tensile force is directly borne by the clamping mechanism and is not transmitted to the positioning ferrule. The overall structure has strong linkage, effectively preventing axial movement and circumferential rotation of the positioning ferrule, ensuring the mating accuracy and return loss stability of the positioning ferrule, and significantly improving the connector's tensile and vibration resistance.

The application relates to the technical field of autonomous navigation, and discloses a low-altitude visual language navigation method, a low-altitude visual language navigation system and a medium. User spoken navigation instructions, current visual observation data, historical visual observation data, a previous time stage state and a candidate action set are acquired. The user spoken navigation instructions are subjected to structured processing to obtain a structured constraint object representing navigation stage constraints. The previous time stage state and the structured constraint object are used to determine a current stage target readable sign and a current stage action constraint. The target readable sign is cross-frame confirmed based on the current and historical visual observation data to generate a structured sign evidence. Whether the structured sign evidence meets a current stage sign triggering condition is used to update or maintain the current stage state. An action constraint mask is generated according to the state result and the stage action constraint to determine a current navigation action. The application can improve stage consistency and action stability in low-altitude street view navigation.

This invention belongs to the field of automated assembly technology, and specifically relates to a semi-automatic tightening device for confined spaces. It includes a power source lifting system, an upper tooling horizontal feed system, an upper tooling lifting system, an upper tooling indexing and positioning system, a tightening central system, and a bottom support system. The power source lifting system, upper tooling horizontal feed system, upper tooling lifting system, and upper tooling indexing and positioning system are connected sequentially from top to bottom. The tightening central system is connected to the upper tooling lifting system, and the bottom support system is connected to the bottom of the tightening central system. The power source lifting system is used to complete the docking action of the tightening power source, the tightening central system is used to complete the tightening power output, and the bottom support system is used to assist the tightening central system in providing radial support. This invention features a high degree of automation and high motion precision, avoiding human error and ensuring consistent tightening of all nuts.

This invention relates to the field of toy technology, providing a hip joint body and toy. The hip joint body includes a support body, a left connecting component, a right connecting component, a left building block, and a right building block. The left building block is positioned on the left side of the support body via the left connecting component, and the right building block is positioned on the right side of the support body via the right connecting component. The left leg connected to the left building block and the right leg connected to the right building block can be adjusted to a closed position. This invention uses a combination of multiple rotatable and sliding parts, which can flexibly realize the closing and extending movements of the legs, solving the problem of interference between the groin and the inner thigh during leg closing, and greatly improving the fidelity of the simulated movement and the freedom of joint movement.

The application discloses a spring operating mechanism and method for a circuit breaker, and belongs to the technical field of circuit breakers, which comprises a clamp plate type frame, an energy storage to position clutch, a closing holding and a manual closing soft interlocking device, the clamp plate type frame is fixedly connected by opposite first and second side plates through a supporting piece; an energy storage motor of an energy storage transmission device is connected with an energy storage shaft through a transmission assembly, a cam is arranged on the shaft, and an energy storage holding buckle is arranged; the energy storage to position clutch device is a one-way clutch assembly connecting the transmission assembly and the energy storage shaft; the closing holding device comprises a hinged opening release assembly, a reset elastic piece and a linked output shaft; the manual closing soft interlocking device comprises a sliding manual operating assembly, a closing trigger piece and an interlocking assembly, and is matched with the energy storage holding buckle; the problems of the existing spring operating mechanism for the circuit breaker, such as the reliability, structure, cost or precision related defects of the energy storage clutch device, the manual closing mechanical interlocking, the closing holding structure and the modular mechanism cooperation are solved.

This application relates to automatic fire alarm and linkage systems, specifically in the field of fire alarm technology. It includes an alarm body, a tiered voice warning system, a smoke sensor, a miniature camera, a sensing mechanism, and a connection structure. By incorporating a smoke sensor and a miniature camera, this application improves the accuracy of fire detection and reduces false alarms and missed alarms. The smoke sensor detects the ambient smoke concentration, while the miniature camera simultaneously captures environmental images and identifies smoke morphology. The two are electrically connected and work together to determine the fire's characteristics. Subsequent actions are triggered only when both detection results match preset fire smoke characteristics. This overcomes the limitations of traditional single-sensor detection, effectively distinguishing fire smoke from non-fire factors such as cooking fumes and construction dust, reducing the probability of false alarms and missed alarms, and preventing disruption to daily life due to false alarms or delays in fire response due to missed alarms. By incorporating a sensing mechanism, a pressure sensor, and a tiered voice warning system, it achieves tiered early warning, adapting to the initial stages of a fire.

The invention relates to the technical field of power transmission structures, in particular to a vibration rotating device and a massager. The vibration turning device comprises an operation part, a direction changing part and a rotation driving part; the rotation driving part is connected with the operation part through a direction changing part, and the operation part can swing in a reciprocating mode at a set angle. One-way rotation is output through the rotation driving part, and reciprocating swing at a set angle is output through cooperation of the direction changing part, so that reciprocating swing of the operation part according to the set angle is achieved, the use requirement of a user for a specific scene is met, and the robot is simple in structure, good in movement stability and high in adaptability.

The utility model discloses a raw material crusher of plastic particle production, including the organism, the top of organism is provided with the hopper, the front and back of organism all are fixedly connected with the support, the left side fixedly connected with the connecting block of support, the front and back of hopper all are fixedly connected with the axle rod, the both ends of axle rod all are connected with the connecting block and are connected movably, the hopper can utilize axle rod and rotate swing and change the inclination angle, the top of organism is provided with transmission structure, transmission structure can control axle rod rotation, transmission structure includes the electric telescopic handle of fixed connection in the top of organism, the output of electric telescopic handle is fixedly connected with the transmission block. The utility model discloses through hopper angle adjustable, adapts to different raw material fluidity, avoids the raw material stagnation or blockage caused by the gentle inner wall, through the change inclination angle control raw material down speed, improve the evenness of raw material of crusher feeding, reduce the equipment idle running or overload risk.

The application discloses an amphibious bionic robotic fish, and belongs to the technical field of bionic robots. The fish body, the main frame, the tail fin driving structure, the pectoral fin driving structure, the linkage type multi-legged structure integrated in the fish body and the hatch structure are included. The hatch structure includes a hatch and a hatch driving mechanism. When the hatch is opened, the multi-legged structure is exposed for land walking. When the hatch is closed, the fish body is streamlined for underwater movement. The linkage type multi-legged structure is composed of four four-legged modules. Each four-legged module contains a double-crank rocker mechanism. The double-crank has a 180° phase difference to ensure walking stability. Four independent power sources are used to drive walking and differential steering. The tail fin driving structure realizes passive swinging of the tail fin through a tension spring. The pectoral fin driving structure assists in adjusting the underwater posture. The linkage type multi-legged structure is integrated in the fish body without the need for external additional modules or complex deformation mechanisms. The structure is compact, the water-land mode switching is reliable, the motion stability is strong, the water-land cross-medium moving task can be autonomously completed, and the application is suitable for underwater detection, environmental monitoring and other fields.

This invention belongs to the field of bulldozer technology and provides a safety control method and system for bulldozer escalators. It controls the escalator's ascent or descent when the following conditions are met simultaneously: the bulldozer is stopped, the bulldozer is in zero gear, the escalator limit switch operation signal and safety judgment signal are mutually exclusive, and the circuit is normal. The system also considers the escalator's descent during bulldozer deceleration. It considers whether there are simultaneous escalator ascent and descent switch press signals, whether the bulldozer is stopped, whether the bulldozer is in P gear, whether the escalator limit switch operation signal and safety judgment signal are mutually exclusive, and whether the circuit is normal, thus maximizing the safety of ascent and descent control. During escalator descent control, it achieves the goal of simultaneously stopping the engine, opening the door, and escalator descent, shortening control time and improving operator efficiency while ensuring safety.

The invention provides a hydraulic electronic load sensitive and pump control system of a cabin cleaning robot and a working method, and belongs to the technical field of engineering robots and hydraulic transmission. Comprising a power unit, a hydraulic pump set, a valve set assembly, an executing mechanism, an electric control system and a measurement and control system. The power unit is in transmission connection with the hydraulic pump set and used for driving the hydraulic pump set to operate, the hydraulic pump set and the valve set assemblies form a closed oil way through hydraulic management, the valve set assemblies are communicated with the execution mechanisms in a one-to-one correspondence mode and control the execution mechanisms to act, and the electric control system is electrically connected with the hydraulic pump set, the valve set assemblies and the measurement and control system. The controller is used for receiving detection signals and outputting control instructions. A dynamic adjustable pressure difference setting scheme is adopted, switching adjustment can be carried out within the range of 5-30 bar according to working conditions, and compared with a fixed pressure difference design of a traditional load sensitive system, the fixed pressure difference loss is greatly reduced; optimization and upgrading of system energy efficiency are achieved through the dual design, the energy efficiency utilization rate is remarkably improved, and the energy-saving effect is outstanding.

The application discloses a magnetic rebound key structure and electronic equipment, and relates to the technical field of electronic equipment input devices, which comprises a first component, a second component, a first permanent magnet, a second permanent magnet and a magnetic guide assembly. One of the first permanent magnet and the second permanent magnet constitutes a middle permanent magnet, and the other permanent magnet and the magnetic guide assembly are respectively located on the two sides of the middle permanent magnet in the axial direction. The other permanent magnet is coaxially arranged in correspondence with the middle permanent magnet and forms a magnetic repulsion relationship. The magnetic guide assembly and the middle permanent magnet form a magnetic attraction relationship in the corresponding area, thereby forming a repulsion-attraction composite magnetic circuit. During the pressing movement, the axial gap between the magnetic guide assembly and the middle permanent magnet and the axial gap between the middle permanent magnet and the other permanent magnet change in a manner of increase and decrease, and the magnetic repulsion component and the magnetic attraction component jointly form a magnetic rebound force, so that the magnetic force is recovered without a mechanical spring. The magnetic circuit has strong designability, flexible hand feeling adjustment and good durability.

This application relates to the technical field of smart devices and provides a three-dimensional collaborative control method and system for a rehabilitation exoskeleton assistive device. The method includes acquiring state data and spatial motion data of the upper limb joints corresponding to the exoskeleton assistive device; identifying the motion stage corresponding to the current operation to determine the target motion stage; determining the corresponding target primary assisting joint based on the target motion stage; and establishing a corresponding joint coordination relationship based on the target motion stage. Based on the target primary assisting joint and the joint coordination relationship, corresponding three-dimensional collaborative assist control parameters are generated to control the exoskeleton assistive device to perform three-dimensional collaborative motion. Through this solution, the exoskeleton assistive device can dynamically adjust the assist coordination state between joints according to different motion stages, improving the motion following accuracy, motion stability, and assist output coordination during complex spatial movements, and solving the problem of difficulty in dynamically switching the primary force-applying joint under different motion stages.

This invention discloses a single-channel SMA valve for a blood pressure monitor, comprising a valve seat, valve plate, valve core, control wheel assembly, SMA wire assembly, and flexible reset assembly. The valve core is slidably mounted inside the valve seat, and the valve orifice communicates with the air passages on both sides. After being heated, the SMA wire assembly recovers its memory deformation and pulls the valve core laterally, forming a gradually changing eccentric flow channel between the valve orifice and the air passages to achieve slow-release pressure control of the blood pressure monitor. The control wheel assembly integrates a heated wheel, cam, and shaft structure, enabling multiple control modes such as electrothermal drive, servo drive, and manual adjustment. The flexible reset assembly is used for buffering and guiding the valve core and for automatic reset. This structure can reduce pressure fluctuations and noise problems caused by the instantaneous opening and closing of traditional solenoid valves, improving the pressure relief stability, pulse wave acquisition accuracy, and overall reliability of the blood pressure monitor.