180results about How to "Guaranteed reset" patented technology

The invention discloses a wind generating set safety chain control system. The wind generating set safety chain control system comprises a master control programmable logic controller (PLC), a pitch system, a converter system, a yaw system, a rotor braking system, a power device, a plurality of failure nodes and a plurality of safety relays. An output end of the power device is respectively connected with the pitch system, the converter system, the yaw system and the rotor braking system through different relays. The wind generating set safety chain control system further comprises a safety PLC, the failure nodes are respectively connected with an input end of the safety PLC, and coils of the plurality of safety relays are respectively connected with an output end of the safety PLC. The wind generating set safety chain control system can accurately locate different failure information and dispose the different failure information in a specific mode.

The invention relates to a miniature circuit breaker reclosure device with the clutch function. The miniature circuit breaker reclosure device with the clutch function comprises a handle device, a shaft sleeve stirring gear and a driving device. The handle device comprises a handle wheel body, and one side of the handle wheel body is provided with handle wheel body wheel teeth which are meshed with the shaft sleeve stirring gear. The driving device comprises a shaft sleeve sector gear and a driving motor, and the shaft sleeve sector gear and the shaft sleeve stirring gear are coaxially arranged. The miniature circuit breaker reclosure device is characterized by further comprising a shaft sleeve clutch key and a clutch bolt, the shaft sleeve sector gear is connected with the shaft sleeve stirring gear through the shaft sleeve clutch key, the clutch bolt is connected with a shell in a sliding mode, and the clutch bolt drives the shaft sleeve clutch key to do axial movement so that the shaft sleeve sector gear can be connected with or separated from the shaft sleeve stirring gear. The miniature circuit breaker reclosure device has the advantages that a switch can be manually or automatically switched during using so that the handle can be disengaged from power, and it can be ensured that a handle and a moving contact can reset in case of power failure during the automatic switching-on of a miniature circuit breaker.

The invention discloses a swinging-head switching shower head and a switching method thereof. The swinging-head switching shower head comprises a handle and a shower head, wherein the handle is provided with an inclined surface and the shower head is installed and connected on the handle in a swinging way. The shower head comprises a swinging unit and a switching mechanism. The switching mechanism comprises a ratchet, a ratchet wheel and a water distributing disc, wherein the ratchet, the ratchet wheel and the water distributing disc are rotatably installed on the swinging unit, the ratchet is provided with a coupled end and a control end, the coupled end is matched with the inclined surface of the handle, the control end is connected with the ratchet wheel and the ratchet wheel and the water distributing disc are connected together in a synchronously rotating way. When the shower head swings relative to the handle, the inclined surface of the handle is matched with the coupled end of the ratchet and enables the ratchet to rotate, the ratchet drives the ratchet wheel to rotate, the ratchet wheel rotates and drives the water distributing disc to rotate, and the switching of water output functions is realized through the relative rotation between the water distributing disc and the swinging unit. The invention has the advantages that the switching is convenient and rapid and the switching method is novel.

The invention belongs to an aviation hydraulic technology, and relates to the improvement on an overflow safety valve of an aviation hydraulic system. The overflow safety valve comprises a casing (4), a main valve mechanism mounted at the left part of an inner cavity of the casing (4) as well as a pilot valve mounted at the right part of the inner cavity of the casing (4). The overflow safety valve is characterized by comprising a filter pad (9) which is located in a middle hole (1e) of three-section stepped holes of a main valve (1) and on the left of a damping plate (2). According to the invention, the overflow safety valve of the aviation hydraulic system, which can prevent a damping hole from being blocked, is provided, so that the safety valve can reset normally after pressure relief, product maintenance or replacement times are reduced, and the service life of the safety valve is prolonged.

The invention discloses a drive method compatible with various smart cards. The drive method comprises the following steps: obtaining the type of conditional access (CA) system, selecting default protocol type as the current protocol type of smart card according to the type of conditional access system; setting the initialization parameter of smart card according to the default protocol type; resetting smart card, if reset is successful, calling communication interface to communicate, and if not, setting the initialization parameter of the smart card again. By using the drive method of the invention to drive smart card, corresponding initialization settings are performed to smart cards with different CA systems, automatic switching between the smart cards with the same type and different protocols can be realized, the normal reset and communication of all the supportable smart cards can be ensured, and the compatibility and universality of the smart card drive system can be increased.

The invention discloses a double-antenna handover system in the GSM-R (global system for mobile communication for railway) network and a method thereof. The double-antenna handover system comprises a head antenna provided with user identification codes, a tail antenna provided with user identification codes and a controller used for controlling received signals and transmitted signals of the head antenna and the tail antenna and handover of functions. By channel adjusting and coordinate of the head antenna and the tail antenna, seamless handover in the GSM-R network is realized, communication quality in the high-speed environment is greatly improved, and for a single-antenna handover process, time for transmitting measuring reports is shortened, and transmission efficiency is high.

The invention discloses a bridge flexibility detection device and a detection method, belonging to the bridge detection field. The detection device comprises a steel wire suspended on the bottom of the bridge, a flexibility detector connected to the lower end of the steel wire and a fixing seat fixed on the flexibility detector; the flexibility detector comprises a detector frame and an indication gauge fixed in the detector frame; the testing rod of the indication gauge is upwardly vertical; and the top end of the test rod is connected to the lower end of the steel wire. The detection method of the invention is based on the flexibility detector, cancels a suspension weight, reduces the adverse affect on the test result by the wind force, adopts the anchored steel chisel to replace the magnetic force table seat, saves the time and cost for establishing the platform, provides convenient and efficiency to the on-site installation and improves the working efficiency. The invention can effectively guarantee the resetting of the indication gauge test rod, greatly improves the accuracy and stability of the flexibility test. The indication gauge on the detector is provided with a spring which provides the needed pulling force and prevents the error caused by the deformation of the steel wire under stress, and the detection accuracy is improved.

The invention discloses a coal mine vertical wind well explosion-proof door advanced explosion venting device and an explosion-proof door. The coal mine vertical wind well explosion-proof door advanced explosion venting device comprises a canopy type door body and an advanced explosion venting device, wherein the advanced explosion venting device comprises an explosion venting cover, a base, a hinge seat, a reset spring and an air reversing lock; the explosion venting cover comprises a metal cover plate, a sealing block and a cushion pad respectively adhered on the upper board and the lower board of the metal cover plate; a hinge head is arranged at one side of the metal cover plate, the hinge head is hinged with the hinge seat through a hinged shaft; a spring coil part of the reset spring is sleeved on the hinged shaft of the hinge seat, one pin thereof is fixed on the hinge head, and the other pin is overlapped on the hinge seat; the air reversing lock comprises a lock groove on the base and a spring bolt on the metal cover plate; a plurality of trapezoid explosion venting holes are equidistantly arranged on the canopy type door body around the center circumference; the lower end of the base is welded and fixed at the periphery of the explosion venting hole; and the hinge seat is welded and fixed on the canopy type door body. When the existing explosion-proof door is updated and transformed by using the explosion venting device disclosed by the invention, only the canopy type door body needs to be transformed, the work amount is small and the cost is low.

The invention relates to a glue dispensing device, in particular to a glue dispensing device for lighting lamp production. The technical problem to be solved by the present invention is to provide a kind of dispensing equipment for lighting production which can effectively control the dispensing amount and dispensing position. In order to solve the above technical problems, the present invention provides such a dispensing equipment for lighting production, including a mounting frame, etc.; a fixing device is provided at the bottom of the mounting frame; There is a booster pump on the left side of the inner bottom, and a hose is connected to the booster pump. A position adjustment device is installed on the top of the installation frame, and a dispensing head is installed at the bottom of the position adjustment device. The hose passes through the storage box and the dispensing head. connect. The present invention can dispens glue at different positions through the position adjustment device, and the arrangement of the first spring and the steel ball cooperates with the first arc-shaped groove, so that the second slider and the third slider each reach a hollow column.

The invention discloses a driving device for a robot gripper. The driving device comprises a mounting flange, a first bracket, a second bracket, a motor, a first lantern ring, a second lantern ring, a third lantern ring and a fourth lantern ring. A first spring is arranged between the first lantern ring and the limiting block; the third lantern ring winds the top of the first lantern ring through a first connecting rope; the bottom of the first lantern ring is hinged to a first gripper and a second gripper; a second slide bar is inserted onto the fourth lantern ring; a wedge block is connected to the inner side of the slide bar and an arc-shaped plate is fixedly connected to the outer side; the shaft of the motor is inserted into the fourth lantern ring; a base plate is also fixedly connected below the fourth lantern ring; the shaft of the motor is fixed below the base plate through a fixed bolt; a fourth spring sleeves the fixed bolt; the fourth spring is located between the motor shaft and the base plate; and the first gripper is wound on the arc-shaped plate through a second connecting rope. The driving device disclosed by the invention can improve the defects in the prior art and can be applied to a plant which is not driven by compressed air, and the gripper is more conveniently adjusted.

The invention provides an automobile body punching and grinding device, and relates to the field of grinding devices. The automobile body punching and grinding device comprises a supporting mechanism,wherein a pushing plate mechanism is fixedly mounted on one side of the supporting mechanism, a punching mechanism is fixedly mounted above the supporting mechanism, a rotating mechanism is fixedly mounted on above the supporting mechanism and located on one side of the punching mechanism, the supporting mechanism comprises a supporting frame, a punched hole is provided in the center of the uppersurface of the supporting frame, a supporting plate is fixedly mounted on one side of the supporting frame, the supporting frame is fixedly mounted at the rear end of the supporting frame, and the supporting frame is extended above the supporting frame. According to the automobile body punching and grinding device, a punching head is used for achieving punching through working of a first motor, rotation of a grinding tool can be achieved under the action of a pushing plate, the effect of removing a deformation material through a grinding blade can be achieved under the action of a second motor, a driven gear and a driving gear, and the problem that secondary positioning is required when the deformation material is removed is solved.

The invention relates to the technical field of display and especially relates to a shift register circuit, a driving method of the shift register circuit and a display device. The circuit comprises afirst switch unit, a second switch unit, a third switch unit, a fourth switch unit, a fifth switch unit, a sixth switch unit, a seventh switch unit and an eighth switch unit. The shift register circuit can prevent the phenomenon that some stage of shift register unit cannot reach enough start voltage and thus has no output signal after switching the scanning direction, thereby avoiding the phenomenon of display abnormality; and besides, through the first-eighth switch units, reliability of the shift register circuit is improved.

The invention discloses an automatic feeding device based on pulleys and a turnover plate. The automatic feeding device comprises a ladder obliquely arranged on the ground and an upright rod used for supporting the ladder. The ladder, the upright rod and the ground form a triangular structure. The turnover plate, used for loading materials, and a tray, used for supporting the turnover plate, are arranged on the front of the ladder. Sliding rails are arranged on two sides of the ladder. The pulleys are arranged on joints between the ladder and two sides of the tray and the turnover plate. The tray and the turnover plate are clamped in the sliding rails through the pulleys. One side of the tray is connected with one side of the turnover plate. The tray, the turnover plate and the sliding rails form a triangular structure. Two fixed pulleys are arranged on the upper portion of the back of the ladder. The lower portion of the tray is fixedly connected with a movable pulley. A three-phase positive-and-negative motor which is arranged at the bottom of the back of the ladder, the fixed pulleys and the movable pulley are connected through a steel wire rope. One side of the three-phase positive-and-negative motor is connected with a power supply mechanism. The automatic feeding device is simple in structure, small in size, convenient to operate and wide in application range.

The invention discloses an outdoor communication cabinet suitable for a wet and cold area and belongs to the technical field of communication equipment, under normal conditions, a sealed heat preservation cabinet body is in a sealed and heat preservation state, the influence of the external environment on the interior of the sealed heat preservation cabinet body can be effectively reduced, and when the temperature in the sealed heat preservation cabinet body is high, the interiors of the external heat dissipation rod, the heat insulation broken guide cylinder and the internal heat sensing cylinder can be automatically adjusted, so the interior of the sealed heat preservation cabinet body can be in heat conduction connection with the external environment under the heat conduction effect of the internal heat sensing cylinder, the external heat dissipation heat conduction rope, the connection heat transfer rod and the external heat dissipation rod, heat in the sealed heat preservation cabinet body can be quickly dissipated, and electrical components in the cabinet are prevented from being damaged due to the high temperature generated by their own operation; when heat in the sealed heat preservation cabinet body is dissipated, the displacement piston block and the like can be automatically reset, so adjustment of heat dissipation in the sealed heat preservation cabinet body can be repeatedly triggered and carried out, and practicability is improved.

Provided are a device and method for cutting straw.A travel switch is arranged on the left side of a notch of an accommodating groove, and a pair of active infrared intrusion detector switches is arranged on the two sides of the position of the notch of an accommodating groove.After a cutter is lowered to the notch of the accommodating groove, the speed is lowered, so that the risk of damaging operators' hands by the cutter is lowered.The rising speed of the cutter is quicker than the descending speed, and the operation time is saved.A pair of second active infrared intrusion detector switches is arranged at an endpoint of a short shaft of a cam and a knife rest.Only when the cutter rises to the highest position can the motor stop rotating, so that it is guaranteed that the cutter returns.

The invention discloses a farm excrement processing device. The farm excrement processing device comprises a preprocessing assembly, a driving motor, a processing assembly, a collecting box, a PLC andan electric control cabinet and is characterized in that the processing assembly is arranged, excrement on a conveying belt is flattened through a scraper blade, the excrement is sterilized and disinfected through an ultraviolet lamp, and a heating piece is powered on to operate to dry the excrement; compared with the mode of drying the excrement in the open air, the excrement processing efficiency and processing quality are improved, and a large amount of labor force and time are saved; by arranging the preprocessing assembly, the excrement enters a preprocessing box from a feeding port, solid-liquid separation of the excrement is achieved through a filter screen, waste liquid in the excrement flows into the lower portion of the interior of the preprocessing box, the excrement falls ontothe conveying belt of the processing box, and excrement processing operation is facilitated; by arranging a filter assembly, the driving motor drives a cam to rotate, the cam periodically impacts a left end plate, particles attached to the upper portion of the filter screen move downwards, and the phenomenon that the filter screen is blocked is avoided.

The invention relates to a multi-direction switching device. The multi-direction switching device comprises a chassis, an operation body which is positioned in the chassis and raised out of the chassis, a circuit board positioned above the chassis, a movable terminal which is positioned above the circuit board and in contact with the circuit board, a sliding block which is sleeved on the operation body and drives the movable terminal to move, and an upper cover which covers the sliding block, wherein the multi-direction switching device also comprises a plurality of elastic elements, one ends of which are fixedly supported by the inner side wall of the chassis and the other ends of which abut against the operation body, and the operation body moves under the driving of an external force so as to drive the elastic elements to generate deformation; and when the external force acting on the operation body disappears, the elastic elements push the operation body to return to an initial position by virtue of elastic-restoring force of the elastic elements. The structure is simple and the assembly is convenient.

The invention discloses a protection assembly of a movable static contact of a plastic shell breaker, comprising a static contact plastic piece and a plastic support piece, wherein the static contact plastic piece wraps the static contact, part of the static contact plastic piece and part of the static contact are arranged in a cavity of the plastic support piece, the static contact plastic piece is formed by combining a first plastic sheet with a second plastic sheet; a second round hole coaxial with a first through hole in the static contact is formed in the front side wall of the first plastic sheet; the front side wall on the lower part of the second round hole extends towards the bottom to form a first extension angle, the left side surface of the first extension angle is a first arc side surface always in clearance fit with the left side surface of the cavity, the rear side wall of the second plastic sheet extends towards the bottom to form a second extension angle, and the left side surface of the second extension angle is a second arc side surface always in clearance fit with the left side surface of the cavity. The lower part of the static contact is omni-directionally blocked, and the electric arc or metal particles generated by contact burnt by arc is prevented from spraying towards the lower part of the static contact, so as to ensure the normal reset of the static contact.

The invention discloses a hospital clinical laboratory test tube oscillation device with a hydraulic reset function. The hospital clinical laboratory test tube oscillation device comprises a base, a bracket, an oscillation mechanism, an adjusting mechanism, a test tube and a reset mechanism, wherein the two supports are installed on the front side and the rear side of the top end of the base correspondingly. The oscillating mechanism is assembled at the top end of the base; the adjusting mechanism is assembled on the inner side of the bracket; the test tube is arranged in an inner cavity of the adjusting mechanism; and the reset mechanism is assembled at the top of the test tube. The device can simultaneously oscillate a plurality of test tubes with different or same calibers at one time, is higher in practicability, replaces a manual oscillation mode, realizes all-directional reciprocating oscillation of liquid in inner cavities of the test tubes from all angles, is more uniform and efficient in oscillation effect, and is higher in practicability. Besides, the device can balance the pressure intensity of the inner cavity of the test tube after oscillation, so that the normal resetting of liquid in the inner cavity of the test tube is effectively ensured, and the use requirements are satisfied well.

The invention provides a self-resetting friction damper for a beam bridge seismic isolation system. The self-resetting friction damper comprises a damper cylinder, a friction device, a first elastic device, a second elastic device, a piston and a guide rod; the guide rod penetrates through the whole damper cylinder; the piston moves leftwards and rightwards along the guide rod and is respectively connected with the left wall and the right wall of the damper cylinder through the first elastic device and the second elastic device; the friction device is movably connected with the upper wall and the lower wall of the damper cylinder; the piston is connected with the friction device through a connecting oblique rod; a limiting device is arranged between the connecting oblique rod and the piston. The invention aims to provide the damper which has the energy-consuming capacity and a self-resetting function; the self-resetting friction damper has the frictional force to realize energy consumption when an upper structure deviates from an equilibrium position and has no frictional force in the process of returning to the equilibrium position, so that the resetting resistance is reduced; all the components of the damper are within an elastic scope in the whole process, so that a series of problems existing in the prior art are effectively solved.

The invention provides a nail gun with reliable working. The main gun comprises a gun shell, a trigger, a motor, a first air cylinder, a second air cylinder, a crank, a connecting rod, a nailing assembly and a nail conveying assembly. The second air cylinder is located in the first air cylinder. A first piston is arranged in the first air cylinder. A second piston is arranged in the second air cylinder. The connecting rod is connected with the first piston in a transmission mode. The motor is connected with the crank in a transmission mode through the transmission mechanism and drives the first piston to move in the first air cylinder in the axial direction through the connecting rod. The nail gun comprises a triggering switch. A triggering ejecting rod is arranged on the trigger. The transmission mechanism comprises a decelerator, a transmission shaft and a sleeved cam. A self-locking ejecting rod is arranged between the cam and the triggering switch. When the cam moves to a high point, the self-ejecting rod is pushed to trigger the triggering switch and separate the triggering ejecting rod from the triggering switch. When the cam moves to a low point, the self-locking ejecting rod separates from the triggering switch. Through the mechanical structure, the motor is controlled to complete a cyclic action, and working reliability of the main gun is well guaranteed.

The invention provides a flexible guide structure of a railway vehicle emergency valve. The emergency valve comprises an emergency piston assembly, an emergency piston rod, an emergency valve seat and a sandwich valve, the emergency piston assembly, the emergency piston rod, the emergency valve seat and the sandwich valve are arranged in the valve body, one end of the emergency piston rod penetrates through a guide hole of the emergency valve seat, the sandwich valve is arranged at a valve port of the emergency valve seat, the flexible guide structure is arranged in the guide hole of the emergency valve seat and used for supporting the emergency piston rod, and the emergency piston rod makes contact with the flexible guide structure all the time in the action process, so that rigid guide of the emergency piston rod in the guide hole of the emergency valve seat is converted into flexible guide. Hard abrasion between the emergency piston rod and the emergency valve seat is avoided, the emergency braking effect that the emergency piston rod is driven by the emergency piston assembly to eject the sandwich valve open is more reliable, eccentric abrasion of the emergency piston rod is avoided, it can be guaranteed that the emergency piston rod resets after emergency braking, and the action stability of the emergency valve is improved.

The invention discloses an extrusion device for PE tubular product. The extrusion device for PE tubular product comprises a heating material cylinder, a hopper, a threaded rod, a first motor, a material removing cylinder, a molding part and a trimming part. The trimming part is movably sleeved on a material discharging side of the molding part. Rectangular hollow cavities are formed in the cylindrical surface of the trimming part. Sliding block are arranged in the rectangular hollow cavities. The outer side of each sliding block is connected with a second motor and a first rotating shaft. The outer side of the second motor is fixedly connected with a connecting rod, a top block and a first rotating bead. The inner side of each sliding block is connected with a universal driving shaft. The universal driving shaft is fixedly connected with a second rotating shaft and a cutting blade. The second rotating shaft and the first rotating shaft are mutually connected through a connecting rope. The inner side of each rectangular hollow cavity is further fixedly connected with a second fixed block. A second spring is connected between the second fixed block and the top block. The cylindrical surface of the trimming part is connected with two hand shanks in a hinged mode. Each hand shank is vertically connected with a toggle plate. The toggle plate and the first rotating bead are selectively contacted. According to the extrusion device for PE tubular product, the insufficient in the prior art can be improved, and a better tubular product trimming effect is achieved.

The invention discloses a safety chain system of a wind generating set and a fault rapid identification method thereof. According to different safety chain trigger objects, a non-intelligent safety relay and a conventional relay are adopted to construct a safety chain loop by a hard-wired series mode so as to form a unit safety system; the state of the safety system is effectively monitored; for the same protected object, the safety chain loop adopts a redundancy design mode; and at least two independent safety chain protection connection points can simultaneously operate, so that the state of effectiveness loss of the safety chain, which is caused by output adhesion of a certain equipment object protection relay connection point, can be more effectively prevented. The safety chain system of the wind generating set and the fault rapid identification method thereof, which are disclosed by the invention, are simple to implement, effective to monitor and low in cost; and meanwhile, the safety and reliability of the safety chain system of the wind generating set are protected by adopting a multilevel protection mode.

The invention discloses a novel structure of a magnetic suspension floor drain core. The novel structure comprises a core body and a sealing cover, the core body is internally provided with a drainagechannel, the bottom of the core body is connected with a shell through connecting arms, and the drainage channel is formed by gaps between the shell and the core body; a guide sleeve is arranged in the center of the shell, and the bottom of the guide sleeve is sealed by the shell; the sealing cover is downwards provided with a guide pillar, and the guide pillar is slidably and cooperatively connected with the guide sleeve; a magnetic restoration structure is arranged between the guide pillar and the shell, and the guide pillar generates upward-pushing restoration force under the effect of themagnetic restoration structure to make the sealing cover block a water outlet of the drainage channel. According to the novel structure, the bottom of the guide sleeve is completely sealed, the contact of a magnet on the guide pillar and the outside is isolated fundamentally, the occurrence of the phenomena of attracting magnetic impurities is avoided, and normal restoration of the guide pillar is guaranteed; meanwhile, a conical bevel is arranged on the upper end face of the shell to avoid the situation that the upper end face of the shell and the inner side face of the sealing cover fit andattract each other, and it is guaranteed that the floor drain core has effective deodorization and insect prevention functions.

The invention relates to a milling and turning composite electric spindle assembly and numerical control machining equipment. The milling and turning composite electric spindle assembly comprises a spindle, a spindle shell and a spindle braking mechanism. The spindle braking mechanism comprises a rotary toothed disc, a positioning toothed disc and a movable toothed disc, the rotary toothed disc coaxially and fixedly sleeves the front end of the spindle, the positioning toothed disc coaxially sleeves the outer side of the rotary toothed disc and is provided with a rotating clearance, the positioning toothed disc is fixedly connected to the front end of the spindle shell, the movable toothed disc is mounted between the spindle shell and a front bearing flange in a sleeving mode and is slidably and hermetically matched with the spindle shell and the front bearing flange, an annular oil cavity is formed in the rear surface of the movable toothed disc, the structure and number of end teethof each toothed disc are the same, the end teeth of the rotary toothed disc and the positioning toothed disc are located on the rear end surface, and the end teeth of the movable toothed disc are located on the front end surface. The spindle braking mechanism is installed at the front end of the spindle and is close to a cutting point, the braking effect is good, the torque applied to the spindleis small during braking, so that the spindle meets the braking requirement without particularly large rigidity, and the deformation damage of the spindle caused by frequent braking can be effectivelyavoided.

The invention relates to the technical field of medical instruments and equipment and discloses a cardiology nursing splint for preventing a patient from lying on side. The cardiology nursing splint comprises a left slide plate, a right slide plate and a detection device, wherein a pushing and pressing device comprises a first magnetic block, a first coil, a first spring, a push rod, a fixing plate and a cushion; a telescopic device comprises a second coil, a second magnetic block, a slide bar and a second spring; and the detection device comprises an air groove, a slider, a metal ball, a variable resistor and a fixing band, and an air bag is arranged in the detection device. The metal ball on the slider makes contact with the variable resistor, the first coil and the second coil on the corresponding side are powered on, the first magnetic block pushes the cushion to reversely push the shoulder of a patient through the push rod, the telescopic device adjusts the angle of an extrusion block, so that the wound of the patient is prevented from being extruded as shown in the figure, and with the adoption of the structure, the problems of high probability of incision dehiscence, koilosternia and protrusion healing with adoption of the existing cardiology nursing splint are solved.

The invention discloses a bucket elevator with an automatic unloading function. The bucket elevator comprises an elevator body, a feeding frame is fixedly arranged on the left side of the elevator body, a feeding cavity with an upward opening is formed in the feeding frame, a first conveying cavity is formed in the lower side of the feeding cavity, and a first magnetic sliding block is installed in a first guide sliding groove in a sliding mode. According to the bucket elevator, a gravity sensing plate senses the weight of a storage barrel located on the upper side of the gravity sensing plateso as to control a second motor to be started, so that the purpose of quantitative conveying is achieved, meanwhile, through driving by a pushing device, the storage barrel storing materials moves downwards and is pushed out backwards, so that the purpose of conveying the materials is achieved, a third pushing block is driven to push a gear sleeve to slide up and down through up-down sliding of afirst jacking block, so that meshing and separation of gears are achieved, it is guaranteed that the pushing device can reset after transportation is completed, and then the transportation procedureis repeated, and the unloading efficiency is improved.

The invention relates to a hydraulic coded lock using a cipher key to unlock in the field of security and protection. The hydraulic coded lock comprises a lock body mechanism, a lock latch mechanism, a coded valve and a power unit. The lock body mechanism comprises a working medium box. The lock latch mechanism comprises an oil cylinder. The power unit comprises a manual oil pump, wherein the manual oil pump, the coded valve and the oil cylinder are connected through oil ducts. The lock latch mechanism, the manual oil pump and the coded valve are assembled on the lock body mechanism. The hydraulic coded lock is characterized in that the coded valve comprises two or more than two valve elements and two or more than two valve element locating springs, wherein the valve elements and the valve element locating springs are integrally assembled on the same valve body; one ends of the valve element locating springs are assembled on the valve elements; the coded valve is provided with a key locating platform which is used for directly limiting the position of a key in the unlocking process or indirectly limiting the position of the key in the unlocking process through location fit between the key locating platform and the lock body mechanism. The hydraulic coded lock is small in size and novel in concept, and has high innovativeness and practical value. The key and the coded valve are accurately matched, and a password can be automatically disorganized when the key is moved away.

The invention provides a deceleration method of a deceleration strip. The deceleration strip comprises a deceleration panel. One end of the deceleration panel is connected with a rotary shaft fixed to the ground, and the other end of the deceleration panel is connected with the ground through a hook. A first metal box is fixedly installed under the deceleration panel. A first direct-current electromagnet is arranged in the first metal box. A second metal box is correspondingly arranged below the first metal box and located underground. A second direct-current electromagnet is arranged in the second metal box. The identical electrodes of the first direct-current electromagnet and the second direct-current electromagnet face each other. According to the deceleration method of the deceleration strip, the purpose of deceleration is achieved by means of the magnetic repulsive force F generated by the direct-current electromagnets; meanwhile, the blocking force of the deceleration strip can be adjusted and controlled by distinguishing the vehicle speed so that the deceleration strip can be adapted to different traffic environments.