52 results about "Release - action" patented technology

The invention provides a rocket engine short-time high-pressure high-speed jet flow simulation system and method.The simulation system comprises a high-pressure air source, a high-pressure storage tank, a Laval nozzle, a quick release mechanism, a test cabin and a measurement and control system, and the quick release mechanism is arranged in the throat of the Laval nozzle; the quick release mechanism is used for sealing and releasing the high-pressure gas stored in the high-pressure storage tank, the quick release mechanism is controlled by the measurement and control system to execute the release action, the high-pressure gas generates high-pressure high-speed jet flow through the Laval nozzle and acts on a to-be-tested piece in the test cabin, and high-pressure high-speed jet flow simulation of the rocket engine is achieved. Compared with a traditional device and method, cold airflow (air and / or nitrogen) is used for simulation, and the safety is remarkably improved; jet flows under different working conditions can be simulated only by adjusting parameters of the high-pressure storage tank, and reproducibility is good; core physical characteristics of high pressure, high speed, high noise and the like of real rocket jet flow are effectively reproduced, and key support is provided for structural bearing and acoustic vibration environment adaptability assessment.

The invention relates to the technical field of massage equipment, in particular to a neck and shoulder kneading and clamping machine core. A neck and shoulder kneading and clamping machine core comprises a shell, two groups of shoulder clamping mechanisms and a driving mechanism for driving the shoulder clamping mechanisms to work are arranged in the shell, the driving mechanism comprises two transmission rods, each group of shoulder clamping mechanisms comprises a first clamping arm and a second clamping arm, the first clamping arm is arranged on one transmission rod, and the second clamping arm is arranged on the other transmission rod. The second clamping arm is arranged on the other transmission rod, and the first clamping arm and the second clamping arm are controlled by the transmission rods to conduct clamping and releasing actions. The device has the advantages that the cervical vertebra rubbing and clamping function and the shoulder clamping function are separated, and the real shoulder clamping function is further achieved.

This invention discloses a multi-level interlocking security device, including a base, a primary inertial safety mechanism, a secondary launch safety mechanism, a tertiary electromechanical safety mechanism, a first security seat, a second security seat, a PCB circuit board, and a release signal switch. The primary inertial safety mechanism can only release when the missile reaches a predetermined acceleration within the launch tube, achieving the required inertial force. The primary inertial safety mechanism can only release within the launch tube. If the missile does not reach the predetermined acceleration value within the launch tube, the secondary launch safety mechanism locks the primary inertial safety mechanism, preventing further release and preventing the secondary launch safety mechanism from completing its release action. The tertiary electromechanical safety mechanism can only release after the primary inertial safety mechanism and the secondary launch safety mechanism have released; otherwise, it will not release under any circumstances, ensuring the absolute safety of the missile.

The application provides a high-reliability flap type locking release device based on timing release, which comprises a locking seat, the top of the locking seat is provided with a flap, the flap comprises a horizontal plate, the top of the horizontal plate is provided with a stepped shaft, and the stepped shaft is provided with a screw hole. The device further comprises a vertical plate, the bottom of the vertical plate is connected with the top left side of the horizontal plate, and the left side wall top of the vertical plate is further connected with the right side wall of the fixed plate through a pin shaft. The device further comprises a vertically arranged locking screw, the locking screw can pass through the screw hole and can be locked by an unlocker, and the locking screw is further sequentially sleeved with an unlocking spring, an anti-dropping cap and a compression gasket from bottom to top. The pin shaft is further sleeved with a torsional spring, and a second torsional arm is pressed below the compression gasket. In the locking state, the torsional spring does not contact the flap and the second torsional arm limiting gasket. In the application, the sequence of the action of the torsional spring and the unlocking spring is designed, and the problem that the rotation and the release action interfere with each other and cause jamming caused by the simultaneous work of the torsional spring and the unlocking spring is solved.

This invention relates to the field of sewing machine technology, and discloses a thread-releasing and presser foot lifting mechanism for a sewing machine and a sewing machine. The mechanism includes a thread-releasing assembly for opening the thread clamp and a presser foot lifting assembly. The thread-releasing assembly includes a top plate rotatable around a pivot and a thread-releasing pin. The top plate is driven to rotate around the pivot by the presser foot lifting assembly, thereby causing the thread-releasing pin to open the thread clamp and perform a thread-releasing action. The presser foot assembly includes a presser foot rod and a presser foot. The presser foot lifting assembly includes an adjusting block fixedly mounted on the presser foot rod and a manual presser foot lifting component. A toggle block is provided on the rear side of the adjusting block. The presser foot assembly also includes an adjusting component for adjusting the presser foot lifting height and pressure. By using the top plate and the thread-releasing pin, when the presser foot is lifted by the presser foot lifting assembly, it is driven to rotate around the pivot, thereby causing the thread-releasing pin to open the thread clamp and perform a thread-releasing action. This ensures that the thread clamp automatically completes the thread-releasing action during the presser foot lifting process, thus simplifying the structure and improving working accuracy.

The application discloses a connecting device and a refrigeration equipment assembly. The connecting device comprises a connecting body, a connecting piece, a releasing piece and a pushing piece. The connecting piece is rotationally connected to the connecting body through a rotating shaft and comprises an abutting end and a releasing end. The releasing end is arranged at the other end of the rotating shaft away from the abutting end. The releasing piece is arranged on the connecting body and comprises a pushing block, a pushing rod and an engaging block connected in sequence. The pushing block is in abutment with the releasing end. The pushing piece is arranged on the connecting body and has a wedge surface for abutting with the engaging block. The pushing piece is used to drive the engaging block to move through the wedge surface, so that the releasing end is driven to move away from the connecting body through the pushing rod and the pushing block, and the abutting end is driven to move towards the connecting body. The application utilizes the structure cooperation of the wedge surface of the pushing piece and the multi-stage transmission of the releasing piece, realizes the accurate conversion from axial displacement to radial movement, and guarantees the smoothness of transmission and the synchronism of releasing action.

This invention discloses a clock-controlled delayed release device for coal mine boreholes, comprising, from back to front, an anchoring claw, a connecting cylinder, a mechanical clock, a release structure, and a cable connector. The anchoring claw includes a fixed rod with at least one anchoring structure. Each anchoring structure includes a first through groove on the fixed rod and a pair of symmetrically distributed first grooves on the fixed rod, with a second through groove between the pair of first grooves. The device utilizes the timing function of the mechanical clock to achieve delayed release of the cable connector. Furthermore, it uses the energy stored in the mechanical clock's spring to rotate a release cam via a worm gear reducer, thus releasing the cable connector. This allows for the timely retrieval of the cable lowered into the borehole, the sensor mounted on the cable, and the cable connector, solving the technical problem in existing coal mine boreholes where sensors cannot be released after anchoring.

The seabed base release device comprises a first seabed base and a second seabed base, a partition type thread body is connected with the first seabed base, the partition type thread body comprises a body and two sets of thread fan bodies, each set of thread fan body comprises at least three fan blades, and the at least three fan blades are arranged in the circumferential direction of the body at intervals; each fan blade comprises an assembly area and a guide area which are adjacent to each other, and the guide area is contracted; the connecting cabin is fixedly connected with the second seabed base, an assembling cavity is defined in the connecting cabin, two sets of threaded grooves are formed in the inner wall of the assembling cavity, the partition type threaded body is located in the assembling cavity, the partition type threaded body is rotated by a preset angle in the second direction, and the two sets of threaded fan bodies are separated from the two sets of threaded grooves; therefore, the first seabed base and the second seabed base are separated. The seabed base releasing device can quickly, stably and reliably execute the seabed base releasing action, and through limiting cooperation of the threaded body and the connecting cabin, disturbance of complex sea conditions to a measuring instrument can be reduced.

The application provides an automatic brake control system, method and urban rail train. The system comprises brake control devices and brake release train lines corresponding to bogies of the train. Each brake control device comprises a brake non-release state normally open node, a forced release electromagnetic piston valve and an electronic control unit. The brake non-release state normally open node is connected with the positive pole of the brake release train line at one end and connected with the forced release electromagnetic piston valve in the brake control device at the other end. The electronic control unit is used for controlling the brake non-release state normally open node in the brake control device to be closed after detecting a brake non-release fault, so that the forced release electromagnetic piston valve in the brake control device is powered to perform a brake release action. The application can realize self-repair of the brake non-release fault, thereby shortening the positive line fault processing time, reducing train delay or delay caused by the brake non-release fault, improving train operation efficiency and operation service quality.

The invention relates to the technical field of geological exploration, and particularly discloses an automatic mast locking and releasing device for a drilling machine. The mast is arranged on the drilling machine and can rotate based on one end of the drilling machine; the support frame is used for being mounted with the drilling machine; the locking and releasing mechanism is arranged on the supporting frame and is used for driving a locking plate to lock or release the mast; a locking base is arranged at the bottom of the end, away from the end connected with the drilling machine, of the mast. The locking plate is arranged at one end of the top of the locking and releasing mechanism, and the locking and releasing mechanism is used for locking or releasing the mast by driving the locking plate to be clamped with or released from the locking seat; the problems that locking of an existing hydraulic oil cylinder is prone to failure, and manual iron wire binding is tedious and prone to errors can be solved in a targeted mode, stable locking of the head of the mast and the vertical beam of the front supporting frame during driving is achieved through an automatic locking structure, and equipment damage and maintenance cost caused by vibration and impact are avoided.

The utility model provides a product transfer device, which comprises a jacking mechanism, a lifting mechanism, a lifting mechanism and a lifting mechanism, wherein the jacking mechanism is used for jacking a material sheet which is conveyed to a clamping station by a runner to a first height, and the jacking mechanism is positioned below the runner; the clamping jaw comprises at least one pair of jaw parts and a driving unit; the jaw parts are used for clamping the two opposite sides of the material sheet; the driving unit is used for driving the jaw parts to execute clamping or releasing actions; and the moving mechanism is used for moving the clamping jaw to a second height right above the material sheet located at the clamping station and moving the clamping jaw to enable the supporting edge to just support the material sheet in the clamping action process of the jaw part. According to the utility model, the problem that the vacuum chuck is difficult to carry out effective adsorption or the adsorption effect is poor is solved, and the ever-increasing process requirements are met.

The invention belongs to the technical field of control circuits, and particularly relates to a pneumatic deicing indication system and method for a fixed-wing aircraft. The pneumatic deicing system performs deicing by adopting the retracting and releasing actions of the deicing sleeve, and the deicing sleeve is controlled to be inflated and deflated by controlling the on-off of the deicing electromagnetic valve. Pneumatic deicing indication information and a control instruction are accessed to a comprehensive management computer, fault discrimination is realized through logical operation, and state indication or fault alarm is carried out in a text form.

The invention discloses an anti-skid fixing table for a vibration test product, and belongs to the field of vibration tests. Comprising a vibration testing machine, and a clamping mechanism is arranged on the upper surface of the vibration testing machine; a plurality of adjusting mechanisms are arranged on the two sides of the vibration testing machine; a control mechanism is arranged behind the vibration testing machine; the clamping mechanism comprises a mounting plate, the bottom of the mounting plate and the top of the vibration testing machine are fixedly mounted, and vertical rods are fixedly connected to the two sides of the upper surface of the mounting plate in a front-back symmetry manner; according to the device, through the design of the multiple sets of clamping units of the clamping mechanism, the limitation that an existing fixing support can only conduct clamping testing on a single product is broken through, in the clamping mechanism, multiple sets of sliding rods and clamping plates correspond to independent clamping areas, multiple to-be-tested products can be placed and fixed at the same time, and the testing efficiency is improved. And all the clamping units are linked with a mechanical transmission system through the same hydraulic loop, so that clamping and releasing actions can be synchronously completed.

The application discloses a circuit breaker integrated with an adjustable hydraulic release device, and contains a circuit breaker body with an embedded adjustable hydraulic release device, a release drive mechanism and a main contact system. The adjustable hydraulic release device comprises a release device body and an intelligent control module; the release device body is provided with an oil cup, an axially movable oil cup core, an armature, a first coil and an armature, and the armature is linked with the release drive mechanism. When the first coil is electrified, a first electromagnetic force is generated, the oil cup core is pushed to move towards the armature, and finally the armature is attracted to trigger a release action to break the circuit. The intelligent control module is located at the end of the oil cup, can generate a second electromagnetic force acting on the oil cup core in the same direction or in the opposite direction of the first electromagnetic force, and realizes rated current regulation and overload protection regulation. The design not only overcomes the problem that the protection characteristics of the traditional hydraulic electromagnetic release device are fixed, but also changes the equivalent synthetic ampere-turns by using the controllable second electromagnetic force, flexibly adjusts the rated current, and meets different equipment requirements.

The application discloses an electromechanical brake, a brake system and a vehicle, which comprise an assembling shell, two motors, a speed reduction and torque increasing mechanism and a brake executing mechanism. The two motors are arranged in the assembling shell. The speed reduction and torque increasing mechanism is arranged in the assembling shell and is in transmission connection with the output ends of the two motors. The brake executing mechanism is arranged in the assembling shell and is in transmission connection with the speed reduction and torque increasing mechanism, so as to execute a brake action or a release action according to the transmission movement of the speed reduction and torque increasing mechanism. According to the application, the two motors are in transmission connection with one speed reduction and torque increasing mechanism, so that the power of the two motors only needs to be transmitted to the brake executing mechanism through one speed reduction and torque increasing mechanism to drive the brake executing mechanism to execute the brake or release action, and the speed reduction and torque increasing mechanism does not need to be arranged for the two motors respectively and individually, and a coupling mechanism for coupling the transmission movements of the two motors does not need to be additionally arranged, so that the structure of the electromechanical brake is effectively simplified, the number of parts is reduced and the assembly difficulty is reduced.

The invention discloses a clamping force control method of a vehicle electromagnetic mechanical braking device, and belongs to the technical field of vehicle braking. The control method comprises the following steps: comparing a target rotation angle with a maximum limit rotation angle of a rotating shaft under the limitation of a thrust circular ring, and adjusting a motor to execute a release action or a clamping action; when the current rotation angle of the output shaft is equal to the target rotation angle, the output shaft of the motor stops rotating, and the first electromagnetic piston and the second electromagnetic piston are powered off. In the clamping process, electromagnetic attraction force generated after the first electromagnetic piston and the second electromagnetic piston are powered on is preferentially utilized to drive the brake lining to rapidly make contact with the brake disc, active and mechanical-transmission-free pre-tightening elimination of the brake gap is achieved, meshing noise and vibration generated when a motor drives a ball screw, a gear and other components to rotate at a high speed are avoided, and the clamping effect is improved. The mechanical noise in the braking process is remarkably reduced, and the response speed and the control precision are improved.

The invention discloses a protection device and a protection method of a new energy system and a related device, and relates to the technical field of power electronics. In the protection device, an operating mechanism is used for receiving an operation for changing the on-off state of a switch; the first tripper and the second tripper can receive external control signals through the corresponding switch interface units respectively; when the first release receives the first control signal and then executes a release action, the switch is controlled to be switched off; and when the second tripper executes the tripping action after receiving the second control signal, not only can the switch be controlled to be switched off, but also the switch can be controlled to be kept in the switched-off state, so that the field staff cannot manually switch on the switch through the operating mechanism any more, and the risk of causing secondary damage to equipment and causing a fire disaster can be further reduced. Moreover, through double control signals and double trips, the new energy system can respectively realize two different protection functions under two fault types.

The invention belongs to the field of automatic control, and relates to an automatic locking and unlocking device of a movable mechanism, which comprises a charging and discharging module, an automatic shaft locking module and a control module, and is characterized in that the charging and discharging module is used for being connected with an external power supply, detecting a power supply input state and sending an IO signal to the control module according to the state; the control module controls the automatic shaft locking module to execute locking or unlocking action according to the IO signal; when normal input of the external power supply is detected, the control module controls the automatic shaft locking module to execute a release action; and when the power supply is detected to be switched off, the control module controls the automatic shaft locking module to execute a locking action. The automatic locking and unlocking device is simple in structure and high in reliability, compared with a traditional manual unlocking device, the automation degree is high, and automatic operation in various complex environments can be achieved.

The application discloses a clamping force control method of a vehicle electromagnetic mechanical brake device and belongs to the technical field of vehicle braking. The control method comprises the following steps: comparing a target rotation angle with a maximum limit rotation angle of a rotating shaft under the restriction of a thrust ring, and adjusting a motor to perform a release action or a clamping action; and when the current rotation angle of an output shaft is equal to the target rotation angle, the output shaft of the motor stops rotating, and the first electromagnetic piston and the second electromagnetic piston are powered off. In the clamping process, the electromagnetic attraction force generated after the first electromagnetic piston and the second electromagnetic piston are powered on is preferentially utilized to drive the brake pad to rapidly contact the brake disc, active pre-tightening elimination of the brake gap is realized without mechanical transmission, meshing noise and vibration generated by high-speed rotation of motor-driven ball screws, gears and other components are avoided, mechanical noise in the braking process is significantly reduced, and response speed and control accuracy are improved.

The invention relates to the field of tool boxes, and particularly discloses a combined tool box which comprises a box body with a first locking opening, a second locking opening and a holding opening, a touch assembly installed at the holding opening, a first locking piece and a second locking piece, and the first locking piece and the second locking piece are installed on the box body. The first locking piece is suitable for being locked with a first locking opening in an adjacent box body; the touch assembly can touch the second locking piece, so that the second locking piece is locked with the second locking opening in the adjacent box body. When a plurality of box bodies of the combined type tool box are mutually stacked, a hand stretches into a holding opening in the side face of the upper box body, the bottom face of the upper box body is inclined relative to the top face of the lower box body, a first locking piece at the bottom of the upper box body is buckled into a first locking opening of the lower box body, and when the combined type tool box is lifted, the locking state between the adjacent box bodies is automatically released; the locking action and the locking state releasing action between the two box bodies are omitted, and operation is convenient and fast.

This invention relates to a mosquito coil clamping and loading mechanism, comprising a mounting plate, multiple clamping blocks disposed below the mounting plate, and a drive mechanism. The clamping blocks are mounted on the mounting plate via a guide mechanism. The drive mechanism includes at least two drive wheels rotatably mounted on the mounting plate, a drive belt sleeved on the drive wheels, and a power source capable of driving the drive wheels to rotate forward and backward. The clamping blocks are fixedly connected to the drive belt. Using the technical solution of this invention, the power source drives the drive wheels to rotate forward and backward. The rotation of the drive belt is converted into the clamping blocks synchronously moving towards the center of the mounting plate to achieve a clamping action or moving away from the center of the mounting plate to achieve a release action. Because the speed of the forward and reverse rotation of the drive wheels is easily controlled, the drive belt can rotate smoothly, thereby making the movement accuracy of the clamping blocks more controllable. Since the clamping blocks can move towards or away from each other, synchronously clamping the periphery of the product, the product can fall more neatly into the container after release, reducing the risk of product damage.

The underwater mechanical release structure comprises a shell, a motor is arranged in the shell, the motor is externally connected with a power source through a watertight connector, a front end cover is arranged at the end of the shell, a lock groove is formed in the front end cover, a cam disc is movably arranged in the front end cover, the cam disc is in driving connection through the motor, and the lock groove is formed in the front end cover. And a lock hook is arranged on the cam disc and is matched with the lock groove to lock or release the underwater machine. The motor is controlled to drive the cam disc to rotate, the lock hook on the cam disc is separated from the equipment steel rope locked in the lock groove, then the release action on the underwater equipment is achieved, influences of environmental factors such as water conductivity and water temperature are avoided, and the underwater equipment releasing device can be applied to any water environment.

The utility model relates to the technical field of cups, in particular to a fingerprint password safety cup which is improved on the basis of an existing fingerprint cup, meanwhile, a driving motor directly drives a driving shaft to rotate through a bevel gear, and then the driving shaft drives a second locking part to swing in a top cover. In this way, the second locking part can complete the releasing action with the first locking part conveniently, the structure is simple, installation is convenient, and meanwhile through the additional arrangement of a middle transmission structure of the driving shaft and the bevel gear, compared with the design that a driving motor directly drives the second locking part to swing, the narrow space in the top cover and the transmission requirement of the driving motor are met.

This invention discloses a simple emergency airway obstruction clearing device, relating to the technical field of airway drainage. It includes a piston cylinder with a first and second movable chamber. An air supply tube is fixedly connected to the outside of the piston cylinder, communicating with the first movable chamber and a face mask. A piston rod is slidably connected within the first movable chamber, and a sliding frame is slidably connected within the second movable chamber. A rubber ring is fixedly connected to one end of the sliding frame, and a spring is fixedly connected to the other end. This invention, through the design of a bellows and pull rod mechanism, ensures that the negative pressure in the first movable chamber compresses the bellows only when the face mask is tightly fitted to the patient's face, forming an effective seal. This triggers the latch release action, releasing the spring's stored energy. This design avoids ineffective operation due to poor sealing, ensuring that each trigger is based on effective negative pressure, thus improving the reliability of emergency treatment.

This invention provides a saw blade clamping device, relating to the field of cutting tool technology. It includes a chuck body with a saw blade mounting position for accommodating a saw blade; a rotating sleeve fitted around the outer periphery of the chuck body in a manner rotatable about the axis of the chuck body; a slider movably disposed within the chuck body along its axial and radial directions, and drivenly connected to the rotating sleeve; and a guide assembly configured to guide the slider along a guide path extending obliquely relative to the axis of the chuck body when the rotating sleeve rotates. The slider is configured to move from a first position of clamping the saw blade to a second position of releasing the saw blade, guided by the guide assembly, in response to the rotation of the rotating sleeve. By having the rotating sleeve drive the slider to move along the oblique guide path, the clamping and releasing actions of the slider can be achieved with a small operating angle or operating force, while ensuring sufficient clearance when releasing the saw blade to avoid interference and scratching with the saw blade.

This invention belongs to the technical field of remote-controlled release devices, specifically relating to a remote-controlled release device for deploying offshore equipment. A release hook is rotatably installed within the main body, with a load suspension hole formed between the release hook and the main body for suspending the load. The release hook is L-shaped with a wedge-shaped end. A stop pin is installed within the main body. A drive mechanism and a control system are installed inside the main body. The control system is connected to the drive mechanism. Based on received external commands, the control system controls the drive mechanism to retract the stop pin and disengage from the release hook. The load causes the release hook to rotate, achieving release. This invention achieves remote-controlled release by linking the control system, drive system, and release hook, and by improving the structure of the release hook. The release hook structure combines stable slinging with easy release; only a release command is needed to execute the release action, making operation simple. After release, the release hook automatically resets. The overall structure has good waterproof performance and is suitable for deployment of offshore equipment.

This invention belongs to the field of cable well testing operations, specifically a soft release tool. Addressing the problem that existing conventional wireline / cable working tools typically require the use of a shock absorber during well deployment, which can cause the tool to slip out of the hand due to the shock effect, this invention proposes the following solution. It mainly includes a mandrel assembly, a sleeve assembly, hydraulic oil, and a locking block. A sealed space is formed between the mandrel assembly and the sleeve assembly, filled with hydraulic oil. The upper end of the upper connector is connected to the tool string; the lower end of the upper connector is connected to the upper mandrel via a threaded connection and an elastic cylindrical pin. The pressure difference generated by the relative movement of the two independent components within the sealed space of the soft release tool slows down the release action, thus ensuring a smooth release of the deployed instrument or tool. This avoids damage to the instrument or tool caused by the shock absorber's release action, protecting the deployed instrument or tool and extending its service life.

The invention discloses a putting and recycling method and system for an airborne blocking device of a power transmission line, and relates to the technical field of blocking device laying, and the method comprises the steps: carrying out the rope putting according to a putting line based on a friction wheel type meter counting device, and outputting a release node signal according to a judgment result of a wheel rotation angle and a preset rope releasing length; executing hanging buckle release according to the release node signal based on a release mechanism, and obtaining a release state signal; according to the release state signal, selecting to execute a hanging buckle repeated release action or a hanging buckle self-locking fixing action; in response to the recovery signal, generating a recovery path according to the hanging buckle coordinates in the release stage, and executing hanging buckle unlocking according to the recovery path and a dual unlocking mechanism; and performing rope recovery based on a preset tension threshold and the dynamic speed adjustment function. The device has the beneficial effects that the net blocking rope and the hanging buckle are automatically put and recycled without manual participation, and the safety and reliability of putting and recycling are both considered.