130results about How to "Realize a rigid connection" patented technology

The invention discloses an integrated docking and adding device. The integrated docking and adding device comprises a driving part and a driven part, and a layout form of a center and a periphery in a circle is adopted; a center rod is flexible, and after soft docking is realized, three groups of rigid rods uniformly distributed at the periphery are in rigid connection; when the initial docking of the flexible center rod is completed, and declination of two spacecrafts in the pitching / yaw direction is corrected, declination of the spacecrafts at lateral (radial) positions is corrected; when the initial docking of three side rods is completed, the rotating declination of the two spacecrafts is corrected, and the rigidities of the two connected spacecrafts are provided; the center rod has functions of limitation and control in extending movements and retracting movements, and after the center rod extends in place, a feedback signal is provided by a Hall proximity switch; the center rod and peripheral rods are unlocked by electromagnets. According to the integrated docking and adding device, the Hall proximity switch is arranged at the top end of the flexible rod, so that an erroneous judgment of locking is prevented, and a driven end is guaranteed to be passive.

The invention discloses a rotor wing control mechanism for a coaxial helicopter. The mechanism comprises an outer shaft, an inner shaft, an inner and outer shaft supporting base, an outer automatic tilting device, an inner automatic tilting device, a middle ring, a third connecting device, a plurality of lower pull rods, a plurality of first connecting devices, a plurality of lower horizontal rods, a plurality of second connecting devices, a plurality of lower rotor wing propeller hubs which are mounted on the propeller hub head of the outer shaft, a plurality of upper rotor wing propeller hubs which are mounted on the propeller hub head of the inner shaft, a plurality of upper rotor wing variable-pitch rocker arms which are connected with the inner ends of the upper rotor wing propeller hubs, and a plurality of lower rotor wing variable-pitch rocker arms which are connected with the inner ends of the lower rotor wing propeller hubs. Lower rotor wing control mechanisms are distributed into a helicopter body fairing and a lower rotor wing fairing, and upper rotor wing control mechanisms are distributed in a rotor wing shaft. Through the adoption of the mutual matching and control of the lower pull rods and long pull rods, the synchronous control of the total distance, the differential action control of the total distance, and the control of the cyclic variable pitch for an upper rotor wing and a lower rotor wing can be realized through all parts.

The invention provides a plasma catalysis ignition integrated nozzle which is a plasma assisted atomization and plasma ignition integrated nozzle formed by a low-temperature plasma discharge assembly, a fuel pressure atomization nozzle assembly and a high-energy plasma ignition assembly. A barrier medium uniformly discharges to ensure that a liquid fuel partially pyrolyzes to generate a large quantity of gas activated components, so that a gas-liquid coexisting plasma microcell is formed, fuel activation energy and ignition energy are reduced, physical conditions of gas assisted atomization are formed, and atomization effect is improved. A plasma ignitor is arranged on the middle of a multi-point nozzle and is positioned in a combustion chamber low-pressure region, plasma and fuel atomized particles are well mixed to generate a chemical reaction, and a stable high-temperature ignition core is easily formed. Ignition is directly carried out by adopting a plasma jet, and because the plasma jet has special discharge characteristics and larger discharge energy and is highly concentrated in energy, the ignition reliability and the ignition concentration limit of a gas turbine are greatly improved. The plasma catalysis ignition integrated nozzle can be applied to a combustion chamber of the gas turbine.

The invention provides a crossed reinforcing device for a power transmission tower. The crossed reinforcing device comprises reinforcing pieces and a plurality of pairs of external clamping pieces. The reinforcing pieces correspond to angle steel main materials of the power transmission tower, and the reinforcing pieces and the angle steel main materials are arranged oppositely on the outer cornersides of the angle steel main materials to form crossed structures for reinforcing of the power transmission tower. Each pair of external clamping pieces is arranged in two connecting spaces betweenthe outer corner side of the corresponding reinforcing piece and the outer corner side of the corresponding angle steel main material for fixing the reinforcing piece to the angle steel main material.According to the crossed reinforcing device, reinforcing of the reinforcing pieces to the angle steel main materials is ensured, and the influence of original inclined materials / transverse partitionmaterials is skillfully avoided, thus the reinforcing pieces and the angle steel main materials are closely attached, the using performance of the power transmission tower is not affected, construction operation is convenient, the power transmission tower does not need to be punched, welded or detached, damage of punching and welding to the performance of the power transmission tower, especially the strength of the angle steel main materials, is avoided, the accidents such as collapse of the angle steel main materials are prevented, and meanwhile, the difficulty of altitude operation of operators on the power transmission tower is reduced.

The invention relates to a multi-channel microwave radiation measuring device. The multi-channel microwave radiation measuring device is characterized by comprising an antenna portion adapted to the K frequency band and the V frequency band, a receiving device and a microwave black body radiation source, wherein the receiving device and the microwave black body radiation source are connected with the K frequency band and the V frequency band. A feed source of the K frequency band of the antenna portion and a feed source of the V frequency band of the antenna portion are connected with a K frequency band receiver and a V frequency band receiver, and the output end of the K frequency band receiver and the output end of the V frequency band receiver are connected with a controlling unit. The two receivers share the same local oscillator. The microwave black body radiation source comprises a normal-temperature black body radiation source and a liquid nitrogen refrigeration black body radiation source, the normal-temperature black body radiation source and the liquid nitrogen refrigeration black body radiation source are arranged symmetrically about a rotary shaft of the reflective face of an antenna, and the pyramids of black bodies respectively face the rotary shaft. The multi-channel microwave radiation measuring device has the advantages of being capable of working under the condition of unattended operation for a long time, having the capability of continuously detecting the intensity spectrum of atmospheric radiation at a sensitive frequency band, and being capable of being used for continuous real-time monitoring on the atmospheric humidity and temperature profile.

The invention relates to the technical field of steel structures, in particular to an adjustable building stand column connecting mechanism and a using method. The adjustable building stand column connecting mechanism comprises a first column body and a second column body, and further comprises a controller, a first adjusting device, a second adjusting device and a top connecting device; and the first adjusting device is arranged at the bottom of the first column body and used for accurately adjusting the installation position of the first column body, the first adjusting device comprises a bottom shell, the second adjusting device comprises a top cover, a bottom cover, four flexible connecting assemblies and four rigid connecting assemblies, the top connecting device comprises a lining and a connecting assembly, the lining is arranged on the outer wall of the top of the second column body, the connecting assemblies are arranged on the top of the lining, and the rigid connecting assemblies are electrically connected with the controller. According to the adjustable building stand column connecting mechanism and the using method, the mounting position of stand columns can be accurately adjusted, and time and labor are relatively saved during adjustment; and meanwhile, according to the stress condition of the stand columns, an internal connecting mechanism can be automatically adjusted to prevent collapse.

The invention relates to an internal component for a vehicle and in particular relates to a power assembly bracket device for a pure electric vehicle. The power assembly bracket device for the pure electric vehicle comprises a girder, wherein the girder is of a rectangular frame-shaped structure; a charger bracket is arranged on the upper surface of one end in the width direction of the girder, and a battery mounting plate is arranged on the upper surface of the other end in the width direction of the girder; a motor controller mounting plate is erected on the upper surface of the girder; a motor controller mounting bracket is arranged on the girder; an air conditioner compressor mounting frame is arranged below the girder; a speed reducer mounting bracket is fixedly arranged at the lower end of the girder; a vacuum booster pump mounting bracket and a vacuum liquid tank mounting bracket are arranged at one side opposite to the speed reducer mounting bracket; and a driving motor mounting plate is arranged below the battery mounting plate. The power assembly bracket device provided by the invention has the beneficial effects of intensively arranging parts in the power assembly, realizing unified bearing stress and ensuring that stress points of a longitudinal beam of the vehicle are fixed and have uniform stress.

The invention discloses a fabricated steel-frame structure joint which comprises a joint core. The joint core comprises an upper end plate, a lower end plate, an upper end connector, a lower end connector, a circumferential connector and a core column; the upper end plate is fixedly arranged on the upper end face of the core column, and the lower end plate is fixedly arranged on the lower end faceof the core column; the upper end connector is fixedly arranged on the upper surface of the upper end plate, and the lower end connector is fixedly arranged on the lower surface of the lower end plate; a box column comprises an upper box column and a lower box column, and the box column sleeves the upper end connector and the lower end connector and is connected with the upper end connector and the lower end connector through bolts; one end of the circumferential connector is fixedly connected with the side wall of the core column, and the other end of the circumferential connector is connected with one end of a truss frame beam through bolts. By arranging the joint core, rigid connection between a steel-frame beam structure and a column structure is realized, the structure is simple andreasonable, the force transmission is clear, the fabrication speed is high, and the construction quality is high.

The present invention relates to a sizing reducing mill for large-diameter seamless steel pipe. It includes at least more than two machine frames and rolls which are arranged along steel pipe rolling direction and driving device. It is characterized by that the machine frame is placed on the basic guideway, and fixed on the basic guideway by means of bolts and nuts, all the machine frames are connected together by means of connecting device, every machine frame interior is equipped with three rolls, every roll is connected with driving device by means of extended shaft or sleeve.

The invention relates to an earthquake monitor for a mine region. The monitor comprises a vertical tube, an upper annular separator plate is arranged in the upper portion of the vertical tube, an annular electromagnet is fixedly mounted in the bottom side of the upper annular separator plate, an annular metal plate is arranged in the bottom side of the annular electromagnet, the bottom side of theannular electromagnet can electromagnetically attracts the top side the annular metal plate, bar-shaped chutes in left-right symmetry are formed in the upper portion of the inner wall of the verticaltube, slide blocks are arranged in the bar-shaped chutes respectively, can slide up and down along the corresponding bar-shaped chutes, and are fixedly connected with the annular metal plate, the bottom side of the annular metal plate is in bearing connection with the upper end of an outside threaded tube, a driver which can enable the outside threaded tube to rotate is fixedly mounted in the bottom side of the annular metal plate, bar-shaped through grooves in left and right symmetry are formed in the middle portion of the periphery of the vertical tube, the upper portions of the bar-shapedthrough grooves are hinged to the upper ends of support rods respectively, the inner upper portion of each support rod is hinged to one end of the upper end of one corresponding connecting rod, and anut is mounted in the lower end of the periphery of the outside threaded tube in a treaded way. The earthquake monitor for the mine region is simple in structure and ingenious in conception.

The invention provides an external reinforcing ring type square steel post special-shaped node with different beam heights. The external reinforcing ring type square steel post special-shaped node comprises a square steel post, external reinforcing annular boards, a connection web plate, an H-shaped steel beam and a bolt, has no need of cutting a post wall, and keeps the continuousness of the post, so that the penetration of the post can be realized. The three external reinforcing annular boards are welded on the square steel post through fillet seams according to the size of the H-shaped steel beam; the connection web plate is welded on the post wall through the fillet seams according to a specific size of the H-shaped steel beam; the connection positions of the connection web plate and the external reinforcing annular boards are fixedly welded through the fillet seams; and on the top external reinforcing annular board and the bottom external reinforcing annular boards, the connection web plate is welded with a web plate of the H-shaped steel beam by using a high-strength bolt at a specific position of the post, and the connection positions of the external reinforcing annular boards and a flange of the H-shaped steel beam are fixedly connected by using the fillet seams. The external reinforcing ring type square steel post special-shaped node provided by the invention realizes rigid connection of the node of a beam post. Compared with the conventional beam post rigid connection node manner, the novel node of the beam post has better carrying capacity, so that safer storage is reserved for a building.

The invention relates to a mortise and tenon joint and bolt hybrid assembling type steel structure beam-column joint which comprises a steel structure beam, a steel structure column and a beam-columnjoint body. The steel structure beam and the steel structure column are connected together through the beam-column joint. The beam-column joint comprises an embedment mortise arranged at the flange end of the beam, an embedment groove body fixedly formed in the surface of the steel structure column, a web connecting plate and an additional connecting plate. The embedment mortise and the embedmentgroove body are in mortise and tenon joint connection. The web connecting plate, a beam web and the additional connecting plate are fixedly connected together through bolts. The beam-column joint is reasonable in structure, definite in force transmission, simple in installation process, safe, reliable, free of welding on site, free of damage to paint coatings, free for paint supplementing on site,high in speed and capable of saving materials and labor cost, the beam-column rigid connection is realized, and the construction period can be shortened by 15-25% compared with a site welding steel structure beam-column joint; no outward-extending cantilever beam sections are arranged on the column, loading and transporting are facilitated, the transport cost can be reduced by 20-30%; the construction cost is lower after standardized production is adopted.

The invention discloses an assembly type cold-formed steel wall-plate-column damping structure system with a U-shaped mild steel damper, and belongs to the technical field of structural engineering damping. The invention aims to ensure modularization, industrialization and assembly of production and construction of an assembly type cold-formed steel wall-plate-column damping structure system, rigid connection between columns is realized by using a novel compartment type flange connection mode, an energy dissipation wall of the U-shaped soft steel damper is additionally arranged to improve theseismic performance of the structure system, so that the assembly type cold-formed steel wall-plate-column damping structure system can be developed to multistory and high buildings, and the construction height of the structural system is increased.

The invention discloses a method for preparing a precise impression of an implant fixed bridge. The method comprises the following steps: preparing an implant restoration impression; filling a plaster model; selecting an abutment; making a metal bridge and a plastic in-position small body; guiding the abutment to be in a mouth by the in-position small body, applying a torque, and removing the in-position small body; enabling the try-in metal bridge to reach the abutment and closely contact the abutment; bonding the metal bridge onto the abutment in the mouth to form an abutment-metal bridge combination body, and taking the combination body as a transfer device; preparing the precise impression of the implant fixed bridge. The method can be used for improving the accuracy of the impression of the implant fixed bridge. According to the method, rigid connection between abutments is realized, the bending strength of the transfer device is improved, the influence caused by deformation of an impression material can be eliminated, the deformation of model plaster can be resisted, and loosening and shifting between connection devices are avoided, thereby improving the accuracy of the impression during implant fixed bridge repairing.

The invention belongs to the technical field of structures and strength, and relates to a positioning lock mechanism for connecting multiple automobiles. According to the positioning lock mechanism for connecting the multiple automobiles, a taper pin lead-in mechanism composed of a guide taper pin and a butt-joint hole is adopted to achieve the initial positioning of the two automobiles and the precise guiding of the butt-joint process when two automobiles are connected, so that low butt-joint efficiency caused by control precision errors of the automobiles is avoided; two locking hook mechanisms with lever effects are adopted to achieve a locking hook function; the proximity situation of two locking end faces are detected through a non-contact proximity switch, abutting and locking of the lock mechanism is achieved under the thrust effect of an electric drive pusher at the long arm ends of two locking hooks, the lock mechanism is separated under the pulling effect of the electric drive pusher, and the end of the butt-joint process is detected in real time; the hard collision caused by unknown butt-joint situation of the real-time detection is avoided, automatic locking and releasing of the butt-joint process are achieved, fully rigid connecting of the two automobiles can be achieved, and the efficiency and the reliability of the multiple automobiles are improved.

The invention provides a floating box locking device and a wind power platform, and the floating box locking device comprises a middle plate, wherein rotating support arms are installed on the two sides of the middle plate; a fixing structure is mounted at the tail end of each support arm; a connecting block which is installed on the side wall of the floating box, wherein after the fixing structure is inserted into the connecting block, the support arms and the floating box are fixedly connected through the fixing structure; an adjusting assembly which comprises a connecting arm, wherein the connecting arm can be stored in the support arms and can slide relative to the support arms; by changing the connection state of the ends, close to each other, of the two connecting arms, the floating boxes are switched between the fixed state and the flexible connection state. Through assembly and disassembly of the fixing structures and the connecting blocks, a worker can conveniently and easily disassemble and assemble the two floating boxes. The floating boxes are switched between the fixed state and the flexible connection state through the adjusting assemblies, operation is simple and easy to implement, the worker can conveniently overhaul the water equipment in the later period, reconstruction can be conveniently conducted on the basis of the floating boxes, and thus the required purpose is achieved.

The invention provides a connecting device during integral lifting of a bogie and an axle box of a subway engineering vehicle. A spring upper seat and a spring lower seat are located between a bogie frame and a wheel set axle box; the spring upper seat is fixedly connected to the bogie frame; a process pin connected to the bogie frame passes through center holes on the spring upper seat and the spring lower seat to extend out of the spring lower seat; the lower end of the spring lower seat is adapted to a mounting hole in the wheel set axle box; a vibration damping pad sleeves the spring lowerseat; and after the lower end of the process pin is detachably fixedly connected with a locking piece, rigid connection between the bogie frame and the wheel set axle box during lifting is realized.The lifting empty running of the bogie frame and the wheel set axle box is eliminated during integral lifting, the dislocation of a buffer spring during the lifting is avoided, the risk that a singlestage vertical oil damper exceeds the maximum lifting stroke is reduced, the safety and reliability during integral lifting of the bogie frame and the wheel set axle box are guaranteed, lifting equipment is high in utilization rate, reasonable in design, economical and applicable, and the safety and reliability of operation are improved.

The invention relates to a honeycombed steel box concrete wallboard module, a manufacturing method for the honeycombed steel box concrete wallboard module and a wall body spliced and built by the honeycombed steel box concrete wallboard module and is suitable for building external walls for bearing water-earth pressure in the underground engineering and plate-shaped structure members in a pressure bending stress state in other buildings. The honeycombed steel box concrete wallboard module is of a honeycombed steel box concrete combination structure, can simultaneously bear the loads inside and outside a plane, is large in rigidity and strong in ability of bearing complex load, is not limited by the reinforcement ratio and the axial compression ratio of reinforced concrete members and can be used for members which bear heavy loads. Modular construction of wallboards of a basement is realized, the concrete wallboard modules can be freely combined into the wall body with different sizes according to different construction conditions and requirements, can be used for constructing the wall body with a rigid corner and is wide in application range. As being in factory production, the concrete wallboard module is high in quality and little in influence on the surrounding environment of a construction site. The wallboard modules can be rigidly connected with one another, so that a seam is simple, convenient and reliable, and the waterproof property is good.

The invention discloses a vehicle body aluminum profile structure. A groove is formed in at least one external surface of an aluminum profile; outer grooves are formed on the two sides of the groove respectively; groove walls on the two sides of the groove are groove bottoms of the outer grooves; screw holes are formed in the groove walls of the groove; bolts are matched and fastened with nuts after penetrating through the groove through the screw holes; and heads of the bolts and the nuts are sunk in the outer grooves. According to the vehicle body aluminum profile structure, the groove is formed in the aluminum profile, and connected with the bolts and the nuts in a fastening manner, so that rigid connection of the aluminum profile is achieved; an aluminum welding technology is cancelled; the connecting strength and the manufacturing accuracy of a vehicle body structure constructed by the aluminum profile are ensured; the bolts and the nuts are sunk in the outer grooves after assembly; the maximum external surface of the aluminum profile is not protruded, so that mounting of inside and outside decorations and the like is not influenced; and other components such as other aluminum profiles, a steel plate or an aluminum plate can be mounted on the aluminum profile conveniently.

The invention discloses a force measurement steering wheel installing mechanism comprising a positioning plate and a fixing member. One end of the positioning plate is detachably and fixedly connected with a force measurement steering wheel. The other end of the positioning plate is detachably and fixedly connected with the fixing member. One end, which is away from the positioning plate, of the fixing member is detachably and fixedly connected on an original vehicle steering wheel. Compared with the mechanisms in the prior art, rigid connection between the force measurement steering wheel and the original vehicle steering wheel can be realized by arrangement of the positioning plate and the fixing member so that turning retardation and error caused by deformation of steel wires and nylon ropes can be reduced, the test efficiency can be enhanced, the test accuracy and the repeatability can be greatly enhanced and the safety can also be greatly enhanced.

The invention discloses a pressure-sensitive device with axial sintering of a ceramic metal tube shell adopted, and relates to a pressure-sensitive device. The pressure-sensitive device solves the problem that the axial size and the radial size of an existing pressure-sensitive device are large. The pressure-sensitive device comprises a lead, a tube base, a ceramic insulating material, a multi-layer composite material, a borosilicate glass base, a glass-metal composite material, a metal electrode, a chip and a seal ring. The upper surface of the borosilicate glass base and the lower surface of the chip are in static connection to form a seal structure. The method of axial low-temperature sintering is used for sintering the lower surface of the borosilicate glass base and the upper surface of the ceramic insulating material into a whole through the multi-layer composite material, the multi-layer composite material is of a wafer structure, the lower surface of the borosilicate glass base is square and the diameter of the multi-layer composite material is larger than or equal to the diagonal line of a square of the lower surface of the borosilicate glass base. The pressure-sensitive device with axial sintering of the ceramic metal tube shell adopted is used in the field of pressure-sensitive devices.

The invention discloses a braking device for a hand-drive block. The braking device comprises a transmission shaft and a braking shaft coaxially connected with the transmission shaft, wherein a transmission mechanism is connected on the transmission shaft in a sleeving manner; a reversing hand wheel and a brake disc are connected on the braking shaft in a sleeving manner; a ratchet wheel is arranged between the reversing hand wheel and the brake disc; friction pieces are arranged on the two sides of the ratchet wheel; a plurality of limiting balls are arranged on the surface of the brake disc through first spring bodies; a plurality of limiting grooves are formed in the surfaces, in contact with the brake disc, of the friction pieces in the radial direction; and the limiting balls are in selective clamping fit with the limiting grooves. According to the braking device, defects of the prior art can be improved, and when the braking device is static, the locking force of the braking device is improved.

The invention provides a lifting device of folding arm type lifting equipment. The lifting device of the folding arm type lifting equipment comprises a hanging bracket and a swing frame. A locking device is arranged on the hanging bracket, and two or more positioning pin sets are arranged on the upper surface of the hanging bracket. A steel wire rope is arranged at the center of the hanging bracket. The swing frame is hinged to lifting arms of the folding arm type lifting equipment through swing frame hinged shafts, and swing frame driving devices are arranged on the lifting arms. The swing frame is provided with positioning pin sleeves for positioning pins in the positioning pin sets to be inserted. Through the arrangement, when cargo is lifted, the locking device is reliably connected with the cargo, and the steel wire rope tightens the hanging bracket to enable the positioning pins to be matched with the positioning pin sleeves, so that the cargo, the hanging bracket and the swing frame are connected into a whole; the swing frame driving devices adjust the posture of the swing frame timely to achieve rigid connection to the cargo, in the process from lifting to lowering of the cargo, the degree of freedom of the cargo is restricted, and the cargo is not able to freely move and not affected by external factors, so that the cargo is safely and reliably lifted; and the labor intensity and danger of workers are greatly reduced.

The invention discloses an assembled bridge deck slab comprising a steel bridge deck slab and a structural layer laid on the steel bridge deck slab. Connecting bolt holes are disposed at four sides of the steel bridge deck slab. The assembled bridge deck slab facilitates implementation of factory prefabrication so as to obtain a high-quality bridge deck slab under favorable manufacturing conditions; moreover, the bridge deck slab has ideal interchangeability. Thus, the speed of recovering road passage can be increased, and repair of damaged bridge deck slab under ideal maintenance conditions is facilitated so as to increase the material utilization rate.

The invention relates to the technical field of night vision goggles, and in particular to a pin-rod type disengaging mechanism for the night vision goggles of a pilot. The pin-rod type disengaging mechanism comprises an installation support body and a night vision goggles body, wherein a first location hole and a second location hole located in the same straight line are formed in the sidewall of the connection end of the night vision goggles body; grooves corresponding to the first location hole and the second location hole are formed in the installation support body; a first location ball is arranged in the first location hole, and a second location ball is arranged in the second location hole; a part of the first location ball and the second location ball is located in the grooves; and a location rod penetrating through the first location ball and the second location ball is further arranged in the connection end of the night vision goggles body. The pin-rod type disengaging mechanism disclosed by the invention is used for the technology of the night vision goggles of pilots, and provides a pin-rod type disengaging mechanism for the night vision goggles of a pilot, for ensuring that the night vision goggles body cannot fall off from an installation support when the night vision goggles of the pilot bear a high overload acceleration (of not less than 10 g), and enabling the pilot to realize installation and detachment between the night vision goggles body and the installation support with a single hand.

The invention relates to a pullout test device of a ribbed bar in an earth-rock dam rockfill material and a test method thereof. The pullout test device is provided with a measuring device and a horizontal pullout force applying system and comprises a motor, a speed regulating reducer and a threaded pull rod, wherein a test chamber is arranged in a testing direction, and a rockfill material and a wrapped ribbed bar are placed in the test chamber; symmetrical round holes which can be penetrated by the ribbed bar are formed in the two side walls, and one side of the two side walls is a pullout end; a loading plate is arranged vertical to the horizontal pullout force direction, and a normal loading system is arranged on the loading plate; a pullout force reaction frame is arranged between the pullout end of the test chamber and the measuring device; fixed connection is realized by virtue of a fastening bolt, and a pullout force counter force is provided; and the measuring device is connected with a to-be-tested ribbed bar by virtue of a pullout force and displacement sensor and one ribbed bar sleeve. The pullout test device provided by the invention can be used for solving the problem that normal pressure provided by the traditional pullout test device is too low and the problem of rigid connection between the ribbed bars with different diameters and a pull rod and also can be used for solving the problems of plugging the round holes and keeping the ribbed bars horizontal.

The invention provides a reinforced concrete column connecting structure and a building, and relates to the technical field of building structures. The reinforced concrete column connecting structureprovided by the invention is used for connecting a reinforced concrete column and a steel girder, and comprises a banding structure and a connecting piece, wherein one end of the banding structure isconnected with the reinforced concrete column; and the other end of the banding structure is connected with the steel girder through the connecting piece. When in use, one end of the banding structureis connected with the reinforced concrete column, the other end of the banding structure is connected with one end of the connecting piece, and the other end of the connecting piece is connected withthe steel girder. According to the reinforced concrete column connecting structure provided by the invention, the reinforced concrete column and the steel girder are connected by utilizing the banding structure and the connecting piece, the integral construction is simple relatively, no ribs needs to be added in the reinforced concrete column, meanwhile, the rigid connection of the reinforced concrete column and the steel girder can be realized, and the safety in connecting the reinforced concrete column and the steel girder is improved.

The invention relates to a measuring apparatus for the moisture transmission performance of a wadding fiber assembly. The measuring apparatus comprises a heat insulation protection seat. The upper part of the heat insulation protection seat is provided with a two-section groove; the lower layer of the groove is a constant temperature water bath tank; a thermal resistance filament is fixed in the constant temperature water bath tank; a simulated skin is covered over an upper liquid level of the constant temperature water bath tank; a first temperature sensor and a first humidity sensor are arranged above the simulated skin; the upper layer of the groove is in immovable fit with a sample cylinder; the lower end of the sample cylinder is provided with a mesh interlayer; the interior surface of the sample cylinder and the outer surface of a pushing cylinder are in sliding fit; the upper end of the pushing cylinder is opened, the lower end of the pushing cylinder is provided with a mesh interlayer, and a second temperature sensor and a second humidity sensor are fixedly arranged above the mesh interlayer; and the thermal resistance filament, the first temperature sensor, the second temperature sensor, the first humidity sensor, the second humidity sensor, a refrigerator and a fan are connected with a control circuit and are connected with a computer through a signal pickup assembly for realization of data processing.

The invention discloses a prestressing force stiffened structure for a concrete faced rockfill dam and a construction method thereof. The stiffened structure comprises spring cases, reinforced beams,stopping beams, binding wires and geogrids. The geogrids are flatly laid between adjacent rockfill material layers. The spring cases are fixed to one ends of the corresponding rockfill material layers. Springs are arranged inside the corresponding spring cases. The ends of the springs are fixedly connected with one ends of the reinforced beams, and stopping beam holes are formed in the other endsof the reinforced beams. A plurality of holes are formed in the reinforced beams in the axis extension direction. The binding wires penetrate through the holes in the reinforced beams to bind and connect the geogrids together. After the springs are extended to generate prestressing force, the stopping beams penetrate through the stopping beam holes of the reinforced beams of the same rockfill material layers at the other ends of the rockfill material layers so that all the reinforced beams of the corresponding layers can be connected into a whole, and prestressing force interlocking is produced. According to the prestressing force stiffened structure for the concrete faced rockfill dam and the construction method thereof, tensile force is applied to the reinforced beams through an externalprestressing force device and further transmitted to the spring cases so that prestressing force can be applied, the interlocking effect of geogrid meshes and rockfill materials is improved and the integrality is good.

The invention relates to a measurement apparatus of heat transfer performance of wadding-filled fiber aggregates. The invention is characterized in that the apparatus comprises a heat-insulation protecting seat upper part of which is provided with two-section groove; a lower layer of the groove is sequentially provided with a heating plate, a hot-fluid sensor, and a medical silica gel layer, wherein plane dimensions of the heating plate, the hot-fluid sensor, and the medical silica gel layer are the same with that of the lower layer of the groove; an upper part of the medical silica gel layer is provided with a first temperature sensor, an upper layer of the groove is fastened with a sample cylinder; an inner surface of the sample cylinder is in sliding fit with an outer surface of a push cylinder, an upper part of the push cylinder is opened, a lower end of the push cylinder is provided with a mesh interlayer, a second temperature sensor is fixedly arranged above the mesh interlayer, a cylinder hoop is fixed on an outer wall of the push cylinder and provided with a vertical through hole, a screw is sleeved in the through hole and is fixedly connected with the through hole through a pair of height-adjusting nuts, the screw is fixedly connected with an upper surface of the heat-insulation protecting seat; and the heating plate, the hot-fluid sensor, the first temperature sensor and the second temperature sensor are connected with a control circuit.