232results about How to "Play the role of security protection" patented technology

The invention provides an underactuated lower limb assistance exoskeleton robot based on a rope-pulley mechanism, and relates to an underactuated lower limb assistance exoskeleton robot. The robot aims to solve the problems that a prior active joint-driving exoskeleton has large self-mass, large drive energy consumption, and a passive joint exoskeleton cannot provide effective assistance. The robot comprises a harness device, a drive control power system, two thigh bar devices, two leg bar devices, two ankle devices, two drive devices and two strings; wherein each drive device includes a motor shell bracket, a first motor shell, a waist frame, a planetary reducer, a second motor shell, a servo motor, a third motor shell, a hip joint spline shaft, a drive pulley, an elastic actuator, a first shaft sleeve, a small bevel gear, a large bevel gear, a second shaft sleeve, a fourth motor shell, a fifth motor shell, a sixth motor shell, a fixing plate and two first bearing end covers with bearings. The underactuated lower limb assistance exoskeleton robot based on the rope-pulley mechanism is used for the field of assistance exoskeleton robots.

The invention discloses a safely mechanic arm in the robot technical domain, which comprises the following parts: waist joint, shoulder joint, elbow joint, carpal joints and grip, wherein the waist torque limiter is set in the waist joint; the elbow joint torque limiter is set in the elbow joint; the waist torque limiter and elbow joint torque limiter limit the maximum load torque of the waist joint and elbow joint separately; the central axle of the waist joint and shoulder joint is mutually vertical and crossing; the central axle of the shoulder joint is perpendicular and crossing to the axle of rotation shaft of elbow joint; the waist joint, shoulder joint and elbow joint have one rotary swaying freedom degree; the waist torque limiter and elbow joint torque limiter protect the mechanic arm effectively under occasional condition, such as overload or collision and so on; the invention is especially for helping invalid or nursing.

A six-freedom-degree heavy load static balance parallel motion simulation table mechanism with a balancing mechanism mainly comprises a moving platform, a foundation platform, a bearing platform, six driving branches exactly the same in structure and three balancing branches exactly the same in structure. The moving platform, the foundation platform and the driving branches for connecting the moving platform and the foundation platform form a parallel driving mechanism. The bearing platform, the foundation platform and the balancing branches for connecting the bearing platform and the foundation platform form a parallel balancing mechanism. The six driving branches are of a UPS structure which is composed of an electric cylinder, a first ball hinge and a first universal hinge. The three balancing branches are of a UPU structure which is composed of a balanced hydraulic cylinder or a balanced air cylinder, a second universal hinge and a third universal hinge, and the bearing platform is connected with the moving platform through the second ball hinge. The six-freedom-degree heavy load static balance parallel motion simulation table mechanism is strong in bearing capability and fast in dynamic response, the balancing mechanism has no inertia force (moment) when the moving platform rotates, the bearing platform has a vertically upward force on the moving platform, and no component in other directions exist.

A double parallel type heavy-duty static balance motion simulation platform mainly comprises a motion platform, a base platform, a load-bearing platform, six driving branches and three load-bearing branches, wherein the six driving branches are completely identical in structure, and the three load-bearing branches are completely identical in structure. The motion platform, the base platform and the driving branches connected with the motion platform and the base platform constitute a parallel driving mechanism. The load-bearing platform, the base platform and the bearing branches connected with the load-bearing platform and the base platform constitute a parallel load-bearing mechanism. Each of the six driving branches is in an uninterrupted power supply (UPS) structure and is composed of an electric cylinder, a first spherical hinge and a universal hinge. Each of the three load-bearing branches is in a strategic petroleum reserve (SPR) structure, and is composed of a balance hydraulic cylinder or a balance air cylinder, a second spherical hinge and a rotational joint. The load-bearing platform is connected with the motion platform through a third spherical hinge. The double parallel type heavy-duty static balance motion simulation platform is strong in bearing capacity, quick in dynamic response speed, simple to control, and suitable for indoor and field environments, and simultaneously reduces extra load caused by the load-bearing mechanism.

A three-transfer-one-shift four-degree-of-freedom heavy-load static-balance parallel motion simulation stand mechanism mainly comprises a basic platform, a motion platform, a load-bearing platform, four driving branches in identical structures and three balancing branches in identical structures. The four driving branches are connected with the motion platform and the basic platform to form a parallel driving mechanism. The three balancing branches are connected with the load-bearing platform and the basic platform to form a parallel balancing mechanism. The four driving branches are in uninterrupted power supply (UPS) structures and are composed of electric cylinders, first spherical hinges and universal hinges. The balancing branches are in RPS structures and are composed of balancing hydraulic cylinders or balancing air cylinders, first revolving pairs and second spherical hinges. The motion platform is connected with the load-bearing platform through a second revolving pair. The mechanism is high in bearing capacity, fast in dynamic response speed, simple to control, capable of preventing the three balancing branches from generating moments of rotation around a shaft and reducing the inertia force (moment) of a parallel load-bearing mechanism simultaneously and applicable to motion simulation of large devices, and the mechanism can be used indoors or in a field environment.

The invention relates to the technical field of cutting of injection-molding parts, in particular to automatic injection-molding part runner cutting equipment which comprises an upper die and a lower die. The upper die is driven to moving up and down by a first cylinder, and the lower die is matched with the upper die. The upper die comprises a clamp plate and a cutting blade arranged under the clamp plate; the lower die comprises a bottom plate and a bottom punch which is fixedly connected to the bottom plate and used for fixing an injection-molding part; the shape of the cutting blade is matched with the profile of a to-be-cut portion of the injection-molding part. With the matching structure of the upper die and the lower die, the upper die is driven to move from bottom to top to cut along the profile of the to-be-cut portion of the injection-molding part under driving of the first cylinder, so that the runner portion of the injection-molding part is peeled off completely at one step; the process of separating runners by the cutting blade under driving of the first cylinder substitutes for the process of manual separation of runners, contact between the cutting blade and the hands is avoided during the whole operating process so that workers' hands are protected; besides, the equipment is easy and convenient to operate and reduces labor intensity of workers.

The invention discloses a novel ignition temperature measuring device for experiment, aiming at providing an ignition device which ignites fuel only by using heat generated by an ignition wire. The device disclosed by the invention comprises an ignition wire, an ignition power source and an ignition platform. A first ignition hole, a second ignition hole, a first temperature measuring hole and a second temperature measuring hole are arranged on the ignition platform. An ignition temperature measuring cylinder is arranged on a bracket above the center of the ignition platform and is provided with a small hole and a thermocouple, and the thermocouple is connected with a thermometer through the first temperature measuring hole and the second temperature measuring hole on the ignition platform via a lead wire. The ignition wire is arranged above the ignition temperature measuring cylinder, two ends of the ignition wire are fixed at a first ignition column and a second ignition column which are externally sleeved with a bracket, a pressure spring and a fastening rotary sheet respectively. The first ignition column and the second ignition column are fixed on the ignition platform and are connected with the ignition power source respectively through the first ignition hole and the second ignition hole on the ignition platform, and the ignition power source is formed in such a manner that a plug, a power-off protector and a contact type voltage regulator are connected via the lead wire. The device disclosed by the invention is mainly used for fuel ignition and temperature measurement during fuel combustion in a laboratory.

The invention discloses synchronously operated electric beds with accurate identification. Each bed comprises a bed body and a bed plate arranged at the upper portion of the bed body. The bed body is provided with a driving motor connected with the bed plate through a linkage rod. The driving motor is further connected with an electric control system comprising a fixed controller arranged on the bed body and connected with the driving motor and remote controls in mutual connection through wireless signals. At least two electric beds are abreast arranged, and the controllers arranged on the bed bodies of the two electric beds are connected through a synchronous connecting line. The two synchronously operated electric beds mainly accurately identify the operation direction and positions of the motors through a Haul sensor, achieve independent control of adjusting any angle, and ensure bed frames are in an independently and statically fixed state during adjustment. During adjustment, if arms and the like are suppressed, expand aple poly ephylene (EPE) surrounding edge sponge can have a safe protection function, and the whole body is simple in structure and safe.

The invention provides a hydraulic steering engine control system. The hydraulic steering engine control system comprises an oil cylinder, a three-position four-way solenoid directional valve, a check valve, a constant-pressure variable pump, a motor, a throttle valve and an oil tank. An oil inlet of the constant-pressure variable pump is connected with the oil tank. The motor is installed on the constant-pressure variable pump. An oil outlet of the constant-pressure variable pump is connected to an oil inlet of the check valve. An oil outlet of the check valve is connected with an oil port P of the three-position four-way solenoid directional valve, an oil port O of the three-position four-way solenoid directional valve is connected with the throttle valve, and the throttle valve is connected with the oil tank through an oil path. An oil port A of the three-position four-way solenoid directional valve is connected with a left cavity oil inlet of the oil cylinder. An oil port B of the three-position four-way solenoid directional valve is connected to a right cavity oil inlet of the oil cylinder. The oil returning throttling speed-adjusting loop is adopted, the steering speed is better controlled to enable a steering engine to work stably, and the hydraulic steering engine control system is simpler, more convenient to manage and suitable for small ships.

An electro-thermal cooking range is prepared for covering coil base surface on top port of coil base body; erecting electric control box at external side of coil base front surface; setting temperature controller, gear shifter, timer and lifting switch in said electric control box, hanging sauce material box at external of coil base body, erecting electric heater in cavity of coil base body, erecting lift device of electric heater at middle-bottom part of oil base body and setting heat isolation plates and pads at bottom and periphery of coil base body.

The disclosed intelligent remote detection system for power supply comprises: a local switch power with a CPU and a sampling circuit to monitor remote voltage and current; and a connected remote power with a sine oscillating circuit, wherein the local sampling circuit converts the oscillating current into sine voltage to be detected by CPU for online ACK. This invention is security and reliable.

The invention belongs to the technical field of a plate-making printing machine and in particular relates to a nano computer to plate (CTP) ink head lifting device. The nano CTP ink head lifting device comprises a driving mechanism, a transmission adjusting mechanism, a middle plate, a sliding plate and a positioning mechanism, wherein the driving mechanism is arranged on the bottom plate; one end of the transmission adjusting mechanism is meshed with a gear of the driving mechanism through a single-plate cam of the transmission adjusting mechanism and the other end of the transmission adjusting mechanism is arranged on the sliding plate through a roller seat body; the middle plate is arranged on a main plate of the transmission adjusting mechanism; one end of the positioning mechanism is connected with the middle plate and the other end of the positioning mechanism is connected with the sliding plate; and the sliding plate is connected with the middle plate through two second sliding rail components. Due to the transmission adjusting mechanism, the horizontal linear motion is converted into vertical linear motion, the device occupies a small space, and the position adjusting accuracy is realized.

The invention discloses a fireproof door. The fireproof door comprises a door frame, wherein a hollow through cavity is formed in the middle of the door frame, and a more than one group of symmetricalfirst shaft hole are separately formed in the upper surface and the lower surface of the hollow cavity, and more than one flexible fireproof rod is arranged in the hollow cavity side by side; the fireproof rods are in sealing contact with each other, and the whole hollow cavity is sealed by the more than one fireproof rod; first rotating shafts are vertically disposed on the upper side and the lower side of the fireproof rods separately, and the first rotating shafts are rotatably mounted into the first rotating shaft holes formed in the upper surface and the lower surface of the hollow cavity; and an escape gap cavity is formed between the every two adjacent fireproof rods. The novel new fireproof door is adopted, the smoke can be effectively blocked from entering an escape space duringescape, and the heat on an escaper can be effectively reduced, the fireproof time of the fireproof door is further prolonged, and the function of safety protection is achieved.

The invented equipment is capable of monitoring ground wire, hot wire and zero line fully, preventing reverse connection between hot wire and zero line, automatic resetting, possible to be enbended into diversified electric apparatus, and overcoming disadvantages in current technique. The equipment includes switching circuit, rectifying circuit and relay. Hot wire and zero line connected to power source through rectifying circuit, switching circuit provides power for the relay. After being connected to the relay, then the hot wire, zero line and ground wire are connected to electric apparatus. Based on/off state of ground wire, the switching circuit controls on/off of power source. Monitoring end of the switching circuit is connected to ground wire. The rectifying circuit is utilized to rectify electrical source for supplying power for the relay, which controls on/off of hot wire, zero line and ground wire.

The invention relates to an electronic seal. The electronic seal comprises an electronic seal main body, a mechanical lead seal rod, magnetic steel arranged on the mechanical lead seal rod, a hall sensor and a signal processing module electrically connected with the hall sensor. The electronic seal main body comprises an upright arm, an L-shaped upper arm and an L-shaped lower arm, wherein the L-shaped upper arm, the L-shaped lower arm and the upright arm are arranged at the same side; the two ends of the upper arm and the lower arm are connected; a positioning hole is arranged at the suspension end of the upper arm; and a lock seat is arranged at the suspension end of the lower arm. The mechanical lead seal rod is locked on the lock seat at the suspension end of the lower arm after penetrating through the positioning hole at the suspension end of the upper arm. The hall sensor is arranged at the position at the suspension end of the lower arm correspondingly to the lower end face of the mechanical lead seal rod. The electronic seal can detect by eyeballing the integrity of the physical structure of the seal and carry out real-time electronic monitoring and recording on the state of the seal.

The invention belongs to the technical field of plate-making printing machines and in particular relates to a nano material computer to plate (CTP) printing device. The printing device comprises a bottom plate, a V-shaped guide rail, a lifting device, a horizontal transmission mechanism and a nozzle combination device, wherein the nozzle combination device is respectively connected with a slidingplate of the lifting device, the horizontal transmission mechanism and a V-shaped sliding seat body of the V-shaped guide rail, and slides along the V-shaped guide rail; the lifting device comprises a driving mechanism, a transmission adjusting mechanism, a middle plate, the sliding plate and a positioning mechanism; the driving mechanism is arranged on the bottom plate; one end of the transmission adjusting mechanism is meshed with a gear of the driving mechanism through a single-plate cam of the transmission adjusting mechanism, and the other end of the transmission adjusting mechanism is arranged on the sliding plate through a roller seat body; the middle plate is arranged on a main plate of the transmission adjusting mechanism; one end of the positioning mechanism is connected with the middle plate and the other end of the positioning mechanism is connected with the sliding plate; and the sliding plate is connected with the middle plate through two second sliding rail components. The arranged nozzle combination device meets the nano plate-making requirement, and the printing device has high precision and a good effect.

The invention discloses a connecting structure of lithium battery plate lugs and poles. The connecting structure comprises lugs of a multi-layer foil sheet structure formed by superposing a plurality of layers of foil sheets, wherein the plate lugs comprise a positive electrode plate lug and a negative electrode plate lug; the plate lugs are pressed and packaged by virtue of buffer foil sheet machinery; butt-joint side foil sheets of the buffer foil sheets packaging the plate plugs are superposed and pressed; the plate lugs and the buffer foil sheets are mechanically pressed for pre-connected by virtue of ultrasonic welding; poles are arranged at single-layer sides of the buffer foil sheets; the poles, the plate plugs and the buffer foil sheets are connected by welding; and the adopted welding mode is a filling type stirring friction spot-welding mode. The connecting structure of lithium battery plate lugs and poles manufactured by the manufacturing method disclosed by the invention has the advantages of good reliability and conductivity, capacity of improving the battery consistency, beautiful appearance, and relatively strong processing suitability.

The invention relates to a winding buffering mechanism and a winding device. The winding buffering mechanism comprises a first driving disc, a second driving disc and buffering elastic pieces, the first driving disc is provided with a center shaft and N first force arms distributed circumferentially, N is a positive integer, the second driving disc is circumferentially provided with N second force arms corresponding to the first force arms in a one-to-one mode, the second driving disc can be rotatably arranged on the center shaft in a sleeved mode, the N first force arms are mutually crossed with the N second force arms, each first force arm and the corresponding second force arm are adjacent in position, the buffering elastic pieces are arranged in spaces respectively formed after each first force arm and the corresponding second force arm are crossed, and the two ends of each buffering elastic piece abut against the corresponding first force arm and the corresponding second force arm respectively. The winding buffering mechanism performs a safety protection function.

A swing-motion conversion device of a tower crane stay rope, and a tower crane are disclosed. The conversion device comprises an installation support, a detection assembly and a sleeve connecting rod. The detection assembly is fixed to the installation support and comprises a shell. The shell is provided with a first motion state sensor and a second motion state sensor which are perpendicular to each other and are disposed in the same horizontal plane. One end of the sleeve connecting rod is provided with a thrust bearing having a rope passing hole, and the other end of the sleeve connecting rod is separately connected to the first motion state sensor and the second motion state sensor. The tower crane comprises the swing-motion conversion device. According to the swing-motion conversion device and the tower crane, swing-motion conversion of the tower crane stay rope can be achieved, the swing quantity measurement problem during simple pendulum motion and conical pendulum motion of a hoisting stay rope is effectively overcome, detection of states comprising a swing angle, a swing speed, a swing accelerated speed, and the like of the swing motion of the stay rope can be achieved, measurement precision is high, and safety and reliability are good.

Automatic press fitting equipment for automobile brake tube fittings is characterized by comprising a working table (1), a cylinder (2), a controller and a pressing die (3); the cylinder (2) and the controller are installed on the working table (1); the pressing die (3) is installed on the working table (1) and located at one end of a cylinder piston rod (2.1); a core tube clamping cavity (3.1), a buckling-pressing tube clamping cavity (3.2) and a sealing connecting tube clamping cavity (3.3) are connected and sequentially formed in the end, opposite to the cylinder piston rod (2.1), of the pressing die (3); the core tube clamping cavity (3.1) is throughout the end, opposite to the cylinder piston rod (2.1), of the pressing die (3); the cylinder piston rod (2.1), the core tube clamping cavity (3.1), the buckling-pressing tube clamping cavity (3.2) and the sealing connecting tube clamping cavity (3.3) are coaxial and are all arranged parallel to the working table (1); the cylinder (2) is further in electric connection with the controller. The automatic press fitting equipment facilitates assembly of a core tube, a buckling-pressing tube and a sealing connecting tube, assembly efficiency is high, and quality is excellent.

The invention relates to a mechanical sliding block type angular super-acceleration switching device, the external rotation is introduced through a main shaft mounted in a base, an inertia disk is mounted on the main shaft through a bearing and constitutes a rotation pair together with the main shaft, sliding blocks are mounted on the inertia disk and constitute a movement pair together with the inertia disk, the sliding blocks are moved in the radial direction of the main shaft, a spring is arranged on each sliding block, a roller seat is fixed on the main shaft, rollers in the same effective number with the sliding blocks are mounted on the roller seat, and the sliding blocks are always in contact with the rollers under the action of the springs. According to the invention, angular acceleration is transfromed to the displacement of an indication part in a mechanical mode, a travel switch mounted on the base is triggered to alarm when the acceleration achieves the set value, and the set value of the acceleration can be adjusted by adjusting the moment of inertia of the inertia disk as well as the stiffness and original length of each spring. The design is skillful and compact, the structure is simple, the mechanical sliding block type angular super-acceleration switching device is economical and reliable, and the range of applications is wide. An alarm can be rapidly given out at the initial stage that the rotational speed of a mechanical rotating shaft is out of control.

The invention discloses a charging pile for electric vehicles based on solar power generation, comprising a pile body, wherein a charging cable wire is fixedly connected to the left side of the frontbottom of the pile body. According to the invention, the cooperation of a solar photovoltaic power generation panel, a controller module, an inverter module, a power regulating module, a battery module, a data acquisition unit, an electric power metering module and a switchboard module, the problem that the existing charging piles for electric vehicles do not have solar power generation is solved;the charging pile for electric vehicle based on solar power generation has the advantages of solar power generation and energy saving. In the process of use, it can achieve the purpose of energy conservation and environmental protection, will not consume a large amount of urban electric energy, fully utilize the non-polluting solar energy as power generation energy, indirectly will also improve the air environment, at the same time, it also expands the range of use of charging pile, convenient for the use of users, it is worth popularizing and using.