211results about How to "Realize flexible connection" patented technology

Provided is an integrated electronic speed controller phase array antenna. The integrated electronic speed controller phase array antenna comprises a substrate, miniature electronic speed controller continuous phase shifters, small-sized antenna element sets, a radio frequency feed network and a bias voltage network, wherein the substrate is made of a ceramic material, and the miniature electronic speed controller continuous phase shifters, the small-sized antenna element sets, the radio frequency feed network and the bias voltage network are formed on the surface of the ceramic material in a metal layer structuring mode. The invention further provides a module comprising the integrated electronic speed controller phase array antenna, and a system comprising the integrated electronic speed controller phase array antenna. The integrated electronic speed controller phase array antenna, the module comprising the integrated electronic speed controller phase array antenna, and the system comprising the integrated electronic speed controller phase array antenna can reduce cost, can reduce the number of technological processing procedures of circuit board manufacturing, and a large field width and high-resolution angle observation can be ensured by using a circuit to control phases.

The invention relates to an oil field well workover treatment tool, in particular to hydraulic tongs capable of realizing the automatic loading / unloading of an oil pipe and a sucker rod. The hydraulic tongs comprise main tongs, back tongs, a high-low-speed gear shift mechanism and a connecting support. The back tongs are arranged on the connecting support; the main tongs are positioned above the back tongs and are connected with the back tongs through a guide bar; and the main tongs can reciprocate up and down along the guide bar. The high-low-speed gear shift mechanism is arranged on the main tongs; the output end of the high-low-speed gear shift mechanism is connected with a gear shift device inside the main tongs; and the high-low-speed gear shift mechanism is also connected with a hydraulic control module. The hydraulic tongs are connected with a hydraulic tongs telescopic bracket of the machine body of the well workover machine through the connecting support. The hydraulic tongs are driven by the telescopic bracket to realize automatic telescoping, thereby freeing operators from a dangerous operating environment. Automatic operation is realized for the loading / unloading of the hydraulic tongs, thereby not only reducing the labor intensity of workers, but also avoiding possible accidental injury of workers during the operation.

The invention discloses a rotation angle measuring device and engineering machinery. The rotation angle measuring device comprises a substrate, a connection shaft, an elastic connection piece, a rotary encoder, a transmission shaft and an inner gear ring, wherein the rotary encoder is arranged on the substrate, and an input shaft of the rotary encoder is connected with the transmission shaft; the lower part of the transmission shaft is fixedly provided with an outer gear, and the outer gear is engaged with the inner gear ring on a chassis; the connection shaft is fixedly arranged on an upper car body, and the substrate is connected to the connection shaft in a swinging way; and a first end of the elastic connection piece is connected to the substrate, a second end is connected to the upper car body, and the substrate and the transmission shaft are pulled towards the outer part of the inner gear ring, so that the outer gear on the bottom of the transmission shaft is maintained engaged with the inner gear ring. Due to the adoption of the rotation angle measuring device, while the rotation angle of the upper car body is precisely measured, the flexibility in connection of the encoder and the chassis is realized, parts of the rotation angle measuring device can be prevented from suffering large radial force, and the connection piece between the rotary encoder and the upper car body can be effectively prevented from being cut off.

The invention relates to an air suspension type computer hard disk shock absorption device. The air suspension type computer hard disk shock absorption device is characterized in that: a hard disk fixing frame (5) is encircled in the center of the interior of a case hard disk bracket (1) through side soft rubber air bags (2), a top soft rubber air bag (3) and a bottom soft rubber air bag (7). According to the device, flexible connection between a hard disk and a case is realized by using the soft rubber air bags, so that not only higher noise generated when the hard disk works is reduced, but also the device plays a possible role in absorbing shock and protecting a hard disk.

The invention relates to a drum type vacuum charging machine, which belongs to the technical field of tobacco primary processing automation devices. The drum type vacuum charging machine comprises a charging drum, a charging device, a feeding device, a discharging and transporting device, a vacuum device, a compressed air device, a motor and a transmission device, wherein a transporting pipeline of the charging device is mounted at one end of the charging drum, a vacuum pipeline is arranged at the other end, the vacuum device and the compressed air device are respectively connected on the vacuum pipeline in parallel through pneumatic valves, support rolling ways are respectively arranged at two ends of the charging drum, the charging drum rotates along with the support rolling ways, the charging drum is connected with the motor through the transmission device, and the feeding device and the discharging and transporting device are respectively arranged above and below the charging drum. A switch plate in the drum can lead the range of a material curtain formed by materials in the drum to be larger and more uniform, thereby improving the charging uniformity. The temperature in the drum can be controlled through a heat medium in an interlayer of the drum, thereby avoiding the waste of material liquid, simultaneously leading the materials, material liquid and water vapor to be difficult to be stuck on the wall of the drum and leading the cleaning in the drum to be more convenient.

The invention provides an impact-resistant connecting device of a pipeline and equipment. The impact-resistant connecting device comprises an outer barrel, a cylindrical helical spring, a rubber gasket, a rubber barrel cover, a connecting pipe and a flange, wherein one end of the connecting device is connected with the equipment through the outer barrel which is internally provided with springs, while the other end is connected with the pipeline through the flange and the connecting pipe; at the connecting end with the equipment, the connecting pipe is inserted into the equipment through the rubber gasket to realize the flexible connection of the pipeline and the equipment; the interior of the outer barrel of the connecting device is provided with a plurality of groups of springs which can be used for bearing larger deformation, and the outer barrel and the connecting pipe are fixed through a clamping trough so as to realize a constraint effect in the axial direction and the vertical direction of the pipeline and guarantee the tightness of the connection of the pipeline and the equipment; and meanwhile, the connecting part of the end part of the barrel, the connecting pipe and the equipment is provided with the rubber gasket so as to play the roles of sealing and flexible connection.

The invention discloses a system of directing-type rotary steering actuator mandrel displacement vector control. The system is of a double closed-loop structure, and comprises a ground monitoring system, a communication system, an under-shaft microprocessor, a motion control card, a mandrel polarization device and a sensor set. The communication system is used for transmitting data on the ground and under the shaft, and the under-shaft microprocessor is positioned under the shaft. The motion control card drives two servo motors in the mandrel polarization device to polarize the mandrel; the sensor set performs a real-time feedback of mandrel displacement data to the under-shaft microprocessor to form an inner ring feedback; and the sensor set performs a real-time feedback of actual drilling number data to the ground monitoring system through the communication system to form an outer ring feedback. The invention further discloses a method of directing-type rotary steering actuator mandrel displacement vector control. The calculating process of the mandrel displacement vector is simplified to be combination of two displacement vectors respectively positioned in an overall coordination system and a local coordination system. The system structure and the control method are simple, accurate guided drilling of drilling tools in a well drilling system can be realized.

The invention relates to the technical field of intelligent control and discloses a wall-climbing robot used for a large radian curved wall. The wall-climbing robot used for the large radian curved wall comprises multiple vehicle bodies; the two adjacent vehicle bodies are connected with each other through push-and-pull mechanisms; the push-and-pull mechanism is not arranged between the first vehicle body and the last vehicle body; control units are arranged in the vehicle bodies; adsorption units are arranged at the two ends of the vehicle bodies; the control units are used for controlling the adsorption units to finish adsorption and release adsorption between the adsorption units and the wall; the push-and-pull mechanisms are controlled to drive the vehicle bodies to move. According tothe wall-climbing robot used for the large radian curved wall, through adoption of concave opening designs of cams in sucker wheels, the forces of sucker legs pressed to the wall are periodically changed with intermittent periodic rotations of the cams by means of telescopic structures of the sucker legs so as to realize adsorption and adsorption releasing between the suckers and the wall; by using the push-and-pull mechanisms between the two vehicle bodies, the running of the vehicle bodies is finished; and therefore, the whole device is simply structured, convenient to control and convenientto popularize and promote.

The invention relates to a flexible coupling, which comprises a left coupling body, a right coupling body and a fastening screw, wherein the left coupling body is provided with an input shaft hole and a left fastening screw hole; the inner end part of the left fastening screw hole is communicated with the input shaft hole; the right end part of the outer wall of the left coupling body is provided with a left installation fin; the right coupling body is provided with an output shaft hole and a right fastening screw hole; the inner end part of the right fastening screw hole is communicated with the output shaft hole; the left end part of the outer wall of the right coupling body is provided with a right installation fin; a left pressing sleeve and the left installation fin are provided with left compression screw holes; a right pressing sleeve and the right installation fin are provided with right compression screw holes; the left end part of flexible transmission cloth is tightly pressed and arranged between the left pressing sleeve and the left installation fin; and the right end part of the flexible transmission cloth is tightly pressed and arranged between the right pressing sleeve and the right installation fin. Flexible connection of an input shaft with an output shaft is realized and noise and vibration are small.

The invention discloses a five-hole power socket, which is characterized by comprising a base, a cover plate and a power plug bush, wherein the power plug bush consists of a three-hole plug bush and a two-hole plug bush; a single-stage two-hole plug bush, a single-stage three-hole plug bush and a power contact constitute an independent single-stage power plug bush; a ground wire plug bush of the three-hole plug bush is mounted in a ground wire plug bush mounting seat of the base; the single-stage power plug bushes are symmetrically arranged inside a base groove; and the base and the cover plate are matched with each other to form a rigid spacing system for fixing the power plug bushes. According to the invention, line contact spacing components and surface contact spacing components for limiting six degrees of freedom of a power plug bush space are adopted for performing rigid location on the power plug bushes, and the five-hole power socket can also solve the problems that a traditional power plug bush consumes a large amount of materials and is poor in heat dissipating effect and short in service life. According to the invention, local deformation resulting from mutual interference of the three-hole plug bush and the two-hole plug bush can be prevented in use of the five-hole power socket.

The invention belongs to the technical field of BGA (Ball Grid Array) packaging, and in particular relates to a BGA test socket adopting flexible connection. A part in contact with a BGA ball in the test socket is replaced by a conductive silicone rubber with high conductivity so as to implement flexible support for the BGA ball; and flexible connection inside the test socket is implemented by useof a conductive spring. With the BGA test socket adopting flexible connection, the flexible connection between a BGA chip and a test PCB (Printed Circuit Board) can be implemented, and the damage tothe BGA ball in a BGA chip test process is reduced.

The invention relates to an improvement method for an internal bypass structure of a cut-off valve. The internal bypass structure of the cut-off valve comprises a valve rod (1), a lock washer (2), a clamping sleeve (3), a valve clack (5), an elastic element (5) and a valve body (7), wherein the valve body is provided with an inlet cavity and an outlet cavity which are vertically crossed; the upper end of the valve rod is external threads and is screwed in the valve body. The improvement method for the internal bypass structure of the cut-off valve has the benefits that an auxiliary valve clack in an existing cut-off valve is deleted, the elastic element is additionally arranged, the elastic element is arranged on the valve rod in a sleeving way and is mounted in the valve clack through the local improvement of the valve rod, the clamping sleeve and the valve clack and in combination with the lock washer matched with the cut-off valve and the elastic element, the clamping sleeve arranged on the valve rod in a sleeving way and the lock washer are screwed in the valve clack through the valve rod, and the valve rod displaces downwardly and can realize the sealing of the outlet cavity of the valve body by the valve clack, and meanwhile, by the arrangement of the elastic element, the flexible connection between the valve rod and the valve clack is realized; rigid connection is changed into flexible connection, so that the opening torque or the closing the torque of the valve rod can be reduced, therefore, the special use demands of a deep diving device are met.

The invention provides a wallboard frame, a wallboard frame die and a combination of the wallboard frame and the wallboard frame die. The wallboard frame comprises keels forming a rectangular frame. The keels are provided with protruding bars or grooves, wherein the protruding bars can be matched with the grooves. Each of the protruding bars and the grooves is provided with two symmetric side faces, wherein the two side faces are parallel to the center plane of the corresponding keel. The two ends, in the width direction, of the outer side face of each keel are bent and extend in the direction away from the outer side face to form a net plate connecting face, and protruding first convex ribs are arranged on the two side faces of each of the protruding bars and the grooves. When a pair of keels provided with the protruding bar and the groove are in butt joint in place, the first convex ribs on the protruding bar are pushed into the parts between the first convex bars of the groove and the bottom of the groove, every two corresponding first convex ribs abut against each other, and an interval exists between the top face of the protruding bar and the bottom of the groove. According to the wallboard frame, the wallboard frame die and the combination of the wallboard frame and the wallboard frame die, wallboards can be flexibly connected rapidly and can bear various movable loads, plate joints and plate faces are not likely to crack, in addition, connection is simple and reliable, and construction is easy; and meanwhile, materials can be saved, the production efficiency is high, a die is easy to demount, and repeated use can be achieved.

The invention provides a high-speed tensile test steel plate sample piece clamp. The high-speed tensile test steel plate sample piece clamp comprises an upper holding forcep, a lower holding forcep and a locking device, wherein a clamp forceps shape is formed by the upper holding forcep and the lower holding forcep which are symmetrical up and down; the rear ends of the upper holding forcep and the lower holding forcep are mounted in the locking device. Each of the upper holding forcep and the lower holding forcep is provided with a corresponding bolt hole and a locking bolt which penetrates through the two bolt holes is arranged to lock the upper holding forcep and the lower holding forcep; the rear end of the locking device is mounted on a base; an elastic device is arranged on the base and the base is provided with two seat plates which are arranged in parallel; a buffering spring is connected between the two seat plates. According to the clamp, on the basis of keeping the structure of a previous static stretching test clamp, the locking bolt structure is additionally arranged on the upper holding forcep and the lower holding forcep so that the clamping force on a steel plate sample piece is improved; the elastic connection device is arranged so as to realize the flexible connection of the clamp and stretching test equipment and the influences on testing data by stretching impacts are reduced.

The invention relates to a three-dimensional rotating connector for a special-shaped curtain wall. The three-dimensional rotating connector for the special-shaped curtain wall comprises an upper connector, steel frame anchoring parts, U-shaped connectors, a rotating shaft, an L-shaped connector, a sliding groove connector and a connecting bearing plate. The upper end of the upper connector is connected with a back-pack steel frame, the lower end of the upper connector is connected with the rotating shaft arranged on the U-shaped connectors in a floating mode, the upper connector can rotate around the rotating shaft by over 270 degrees and can slide to the two sides of the shaft simultaneously; the L-shaped connector is anchored with the U-shaped connectors and the sliding groove connector through bolts; the sliding groove connector is fastened with the connecting bearing plate through bolts after the angle is determined according to the curved surface feature of a building main body structure; the connecting bearing plate is fastened with a purline on the building main body structure through bolts. The three-dimensional rotating connector is mainly applied to connection between a building external wall decorative sheet back-pack steel frame and a building main body and is specially suitable for connection between a curved plate with a complex shape and the building main body, the cost of a large amount of design and production of non-standard connectors can be effectively reduced, and flexible connection can be effectively achieved.

The invention relates to an outer hanging-wall plate connecting piece which is characterized by comprising a surface-layer steel plate, an inner-layer steel plate, a bolt rod and a nut, wherein the surface-layer steel plate is connected with the inner-layer steel plate by the bolt rod, one end of the bolt rod extends out of the inner-layer steel plate and is fixed on the inner-layer steel plate by the nut, and the other end of the bolt rod extends out of the surface-layer steel plate and is used for connecting an outer hanging-wall plate and a frame girder or a frame post. The outer hanging-wall plate connecting piece is used for connecting the outer hanging-wall plate with the main-structure frame girder and the frame post, not only ensures the safety and the reliability of the wall plate, but also has good anti-earthquake performance, is convenient to construct and install and has the advantages of construction cost reduction. A pulling test of an embedded piece indicates that the pulling force of the novel embedded piece can reach 120kN; and under the simulated actions of horizontal wind load and earthquakes of a high building of 50 meters, the connection of the outer hanging-wall plate with the main-structure frame girder and the frame post is not destroyed, therefore the same anti-earthquake performance is realized for a non main structure and a main structure, an enclosure structure can be guaranteed not to be destroyed before the main structure is destroyed under the action of the earthquakes, flexible connection of the enclosure structure is realized and the ductility and the integrity of a wall body as well as the integral anti-earthquake performance of buildings are enhanced.

The invention discloses a multi-phase and high-power generation-conversion integrated system and a control method thereof. The multi-phase and high-power generation-conversion integrated system comprises a modular multilevel inverter and a multi-phase permanent magnet generator, wherein a three-phase structure is adopted by the modular multilevel inverter; each phase is formed by connecting an upper bridge arm and a lower bridge arm in series; each bridge arm is formed by connecting n sub-modules and a filter inductor in series; connection points of the filter inductors of the upper bridge arms and the lower bridge arms form output ends of the bridge arms of the corresponding phases to be connected to a public power network; each sub-module comprises a three-phase PWM rectifier, a capacitor and two series-connected IGBT tubes; 6n three-phase windings of the multi-phase permanent magnet generator are connected to AC ends of 6n three-phase PWM rectifiers of the modular multilevel inverter in a manner of one-to-one correspondence; and a DC output end of each three-phase PWM rectifier is connected with the corresponding capacitor in parallel and also connected with two ends of two corresponding series-connected IGBT tubes in parallel. The multi-phase and high-power generation-conversion integrated system has a modular structure design and a good control characteristic, and flexible connection between a power generation system and the power network is easy to implement.

The invention discloses a throttling structure for a long-distance pipeline. The throttling structure comprises a valve body, a movable block and a connector, wherein the connector communicates with the interior of the valve body. The outer diameter of the closed end of the movable block is smaller than the outer diameter of the open end of the movable block, a sliding groove is formed in the inner wall of the middle of the valve body, the open end of the movable block is arranged in the sliding groove in a sliding mode, a hollow flow channel is formed between the closed end of the movable block and the sliding groove, a contact block is arranged on the end face of the closed end of the movable block, a packing ring is arranged at the extension end of the connector, a circular groove matched with the packing ring and a protruding part is formed in the end face of the contact block, the movable block is provided with a gas outlet hole communicating with the flow channel, and a spring is installed between a circular protrusion and the open end of the movable block. When the gas flow is unstable, the movable block is continuously adjusted under the supporting effect of the spring, and therefore the gap between the connector and the contact block can be matched with the flow rate of injected gas, and automatic control over the injected gas can be realized.

The invention discloses a pneumatically-driven type Stirling expansion engine which is used for a Stirling refrigerating machine. The pneumatically-driven type Stirling expansion engine comprises a base, a discharger component and a cold finger; a locating pin and a base air hole are arranged on and formed in the two sides in the base respectively; the discharger component comprises a pneumatic piston, a pneumatic air cylinder, a spring, a ball joint and a cool storage device; one end of the ball joint is connected with the pneumatic piston; the other end of the ball joint is connected with the cool storage device; one end of the spring is connected with the pneumatic air cylinder; the other end of the spring is connected with the pneumatic piston; a locating hole and an air cylinder air hole that are matched with the locating pin and the base air hole are formed in the two sides of the pneumatic air cylinder; and the cold finger is connected with the base and high pressure sealing is realized through a metal sealing ring. The reliability and the life of the refrigerating machine are improved and prolonged, and the requirements on the processing and assembly precision of parts are lowered.

The invention discloses a connecting pipe assembly for a compressor and the compressor. The connecting pipe assembly for the compressor comprises a pump body connecting pipe, a liquid storage device connecting pipe, a first flexible connecting piece and a first guide pipe. The pump body connecting pipe and the liquid storage device connecting pipe are arranged in a spaced manner. The end of the pump body connecting pipe and the end of the liquid storage device connecting pipe are sleeved with the first flexible connecting piece. The first guide pipe is suitable for being fixed to a shell of the compressor, and the first flexible connecting piece is sleeved with the first guide pipe. In this way, through the first flexible connecting piece and the first guide pipe, flexible connection of a compressor pump body and a liquid storage device can be achieved, and sealing can be achieved as well. The connecting pipe assembly for the compressor is simple in structure, and the vibration and noise between the liquid storage device and the compressor can be reduced.

The invention discloses a door body opening and closing device with locking and releasing device. The door body opening and closing device comprises a shell, wherein a driving device and the locking and releasing device are arranged in the shell, the driving device comprises a first sleeve rod, the first sleeve rod slides in the axial direction of the shell and is sleeved with a first spring and a first sliding sleeve, the first sliding sleeve compresses the first spring, the locking and releasing device is used for locking and releasing the first sleeve rod and comprises a stop block, a locking damper, a lock hook and a releasing push block, the stop block can rotate and is provided with a blocking end face for blocking the first sleeve rod, the locking damper is located on the rotating track of the stop block, the lock hook matches with the stop block in a hooked mode, and the release push block controls the lock hook to be separated from the stop block. According to the door body opening and closing device, the locking damper matches with the stop block, automatic reset of the stop block can be achieved, the buffering and delaying effects can be further achieved, and the noise of the release action and the locking action of the first sleeve rod is effectively restrained.

The invention discloses double-opening straight fiber type soft-joint artificial muscle. The artificial muscle comprises an inner rubber tube, multiple straight fibers, an anti-deformation line, end fixing lines and sealing end press lines, wherein the multiple straight fibers are arranged on the outer side of the inner rubber tube in an axial direction; the anti-deformation line transversely constrains the straight fibers in the middle; the end fixing lines are located at two ends of the straight fibers and integrated with the straight fibers; the sealing end press lines are located at the two ends and used for transversely constraining the straight fibers; the middle part of the inner rubber tube is wrapped with the straight fibers; the part, which is not wrapped with the straight fibers, of the inner rubber tube is tightly wound with external pressure-bearing tightening lines, and a catheter is formed; and each sealing end press line is adjacent to the corresponding end fixing line so as to wind the straight fibers around the inner rubber tube. The artificial muscle is connected more smoothly and softly and is not prone to damage, and muscle and a driving object can be flexibly connected.

The invention discloses a compressor suction muffler, which is used in the technical field of compressors, and comprises a muffler body and a connector. The connector is arranged at the air inlet, and the connector is a plastic part. The outer ring edge of the connector forms a flexible lip by controlling the thickness, and the muffler body can be flexibly and sealed connected with the inner wall of the compressor housing through the lip. The invention utilizes the principle of better flexibility of the plastic sheet, and the edge of the outer ring of the connector forms a flexible lip by controlling the thickness. The lip of the connector can absorb the impact kinetic energy generated by the vibration of the compressor to ensure that the connector can fit tightly to the inner wall of the compressor housing to achieve a flexible connection. Under the conditions of ensuring stable performance and efficient use, the invention replaces the rubber connecting piece, can effectively save energy and reduce consumption, and reduce costs.

The invention discloses a distributed power supply grid-connection control system comprising a distributed power supply, a bypass grid connection inverse circuit, a virtual synchronous generator circuit and a master control device. The bypass grid connection inverse circuit is connected with the distributed power supply and a grid; the virtual synchronous generator circuit is connected with the distributed power supply and the grid; when grid connection is required, the master control device controls the distributed power supply, the bypass grid connection inverse circuit and the virtual synchronous generator circuit according to the state of the virtual synchronous generator circuit to enable the distributed power supply and the grid to perform grid-connected operation. The distributed power supply grid-connection control system can realize flexible connection of the distributed power supply and a power distribution network, and reliability in grid connection of the distributed power supply is guaranteed.

The invention discloses an intelligent temperature transmitter with a protection function, and belongs to the field of temperature transmitters, the intelligent temperature transmitter with the protection function comprises a transmitter body and a thermocouple, the outer side of the transmitter body is sleeved with a protection shell and a shell cover, the outer side of the thermocouple is sleeved with a sheath, and a quick locking mechanism is arranged between the protection shell and the shell cover. The top end of the sheath is provided with a container connecting piece, the top of the container connecting piece is fixedly provided with an adapter tube, the sheath is detachably connected to the bottom end of the adapter tube through a threaded structure, the top end of the thermocouple is fixedly provided with a sliding block, the thermocouple is slidably connected to the inner wall of the adapter tube in a sleeving mode through the sliding block, and the inner wall of the adapter tube is provided with a conductive sliding rail; and a conductive contact matched with the conductive slide rail is arranged on the slide block. According to the invention, over-temperature retraction protection and shock absorption and heat insulation protection can be autonomously carried out, and compared with the traditional technology, the structure is simple, the service life is longer, the market prospect is achieved, and the intelligent temperature transmitter is suitable for popularization.

The invention relates to the technical field of fuel cell accessories, and discloses a hydrogen fuel cell safety protection device of a hydrogen energy hybrid power commercial vehicle. The hydrogen fuel cell safety protection device comprises a box body and an inner container, wherein the inner edge of an opening at the upper end of the box body is fixedly connected with a rubber ring, the inner container is fixedly connected with the inner side of the rubber ring, and a cooling mechanism is connected in the box body; the cooling mechanism is connected with the lower end of the inner container, the upper end of the box body is fixedly connected with a fixing frame through bolts, the side wall of the fixing frame is connected with a shell, a fixing mechanism is connected into the shell, and one side of the box body is fixedly connected with a drainage pipe. According to the safety protection device for the hydrogen fuel cell in the hybrid electric vehicle, water produced during working of the cell stack can be used for buffering protection of the cell stack body, auxiliary cooling of the cell stack can be achieved, air entering the cell stack can be filtered, and the fuel cell is effectively protected.

Disclosed are a cast-in-situ integral type steel frame filler wall system connected through springs and a construction method thereof. The system comprises a rectangular frame and a cast-in-situ filler wall body, wherein the rectangular frame is defined by a frame beam and frame columns in an enclosed mode, and the cast-in-situ filler wall body is cast in the rectangular frame. Elastic devices are connected between the left and right sides of the cast-in-situ filler wall body and the frame columns. The space between the upper side, left side and right side of the cast-in-situ filler wall body and the adjacent frame beam and frame columns is filled with anti-flaming flexible filler materials. By the adoption of a flexible connection mode, relative displacement and corners between the rectangular frame and the filler wall body are allowed, and a cast-in-situ integral type filler wall is obtained, is high in construction efficiency and good in integral performance, lowers labor intensity and has a good anti-seismic property as the first seismic fortification line. As for construction, a cast-in-place concrete construction mode is adopted, so that construction time and manpower input are saved, construction efficiency is improved, and construction cost is reduced. The cast-in-situ integral type steel frame filler wall system connected through the springs and the construction method thereof can be widely applied to steel frame filler wall construction.

The invention discloses a wound expansion fixing device for a cardiovascular and cerebrovascular clinical operation, and relates to the technical field of wound expansion devices. The shielding problem is solved. The device specifically comprises a supporting plate fixed to the edge of a sickbed through a fixing piece, one side of the supporting plate is connected with a flaring piece through a driving piece, the flaring piece comprises two push hooks and a drag hook, the push hooks and the drag hook are the same in structure and each comprise two frameworks, and the outer walls of the vertical parts of the two frameworks are fixedly provided with the same arc-shaped connecting column. A plurality of connecting rib columns are fixedly installed on the outer walls of the opposite sides of the two frameworks, and sliding buckles are buckled to the outer walls of the two sides of the push hook and the pull hook located on the same side. The two sets of pushing hooks and the two sets of pulling hooks are used oppositely, after a wound is expanded, the whole pushing hooks and the whole pulling hooks are arranged in the direction perpendicular to the depth direction of the wound, certain space avoiding is conducted, the two sets of pushing hooks and the two sets of pulling hooks are completely vacated, and therefore follow-up blood vessel treatment can be greatly facilitated.