57results about How to "Do not change shape" patented technology

A passive heat-reduction and drag-reduction device and method for a high-velocity flow-around boundary layer. A plurality of rough belts are arranged on the surface of an aircraft to achieve passive heat reduction and drag reduction of the high-velocity flow-around boundary layer of the aircraft. Under the condition of high-velocity flows, the flow-around characteristic, near the wall surface (namely, in the area that the Mach number >= 3.5 and the distance to the wall surface <= 0.3 times the nominal thickness of a local boundary layer), of the high-velocity boundary layer is utilized to propose new principles of delayed heat transition in a laminar flow area and heat reduction and drag reduction in a turbulent flow area. The use of elliptic cylinders, quasi-prisms or rectangular columnscan produce a stable trailing vortex structure and isolated roughness elements of which the height <= 0.3 times the nominal thickness of the local boundary layer so as to achieve the functions of thedelayed transition in the laminar flow area and the heat reduction and drag reduction in the turbulent flow area. The passive heat-reduction and drag-reduction device and method for the high-velocityflow-around boundary layer can effectively reduce the energy consumption and the heat protection pressure of the aircraft and improve the endurance ability and payload of the aircraft under the condition that the flight Mach number >= 3.5 and without changing the appearance of the aircraft, applying additional energy or increasing additional equipment.

The invention belongs to the technical field of battery manufacturing of electric motor cars and in particular relates to an improved battery; the battery comprises a shell, an upper cover, a pole rod, a lithium battery and an electric conducting bar; the shell is a cuboid shape, and the opening of the shell is sealed by the upper cover, and a strengthening rib is formed by the outer wall of the shell forms, and the lithium battery is arranged in the shell; the pole rod is embedded on the upper cover, and the outer end of the pole rod is connected with the electric conducting bar; the strengthening rib is transversely and uniformly distributed by the way that the strengthening rib is parallel to the edge of the opening of the shell. The improved battery has the advantages of high-strength shell, good heat radiating performance, simple structure, high using safety, high sealing property, long service life and the like.

The invention discloses touch tool full-automatic braze welding equipment. The touch tool full-automatic braze welding equipment is characterized in that a welding mechanism is arranged on a table, corresponding executing mechanisms are arranged around the welding mechanism, that is, the touch tool feeding mechanism is arranged on a first station, the soldering lug feeding mechanism is arranged ona second station, the touch spot feeding mechanism is arranged on a third station, and the discharging mechanical hand and a material box are arranged on a fourth station; the welding mechanism comprises a portal type U-shaped frame, the upper portion of the U-shaped frame is provided with a pressing unit, and an upper electrode assembly is arranged on the lower portion of the pressing unit; andthe lower portion of the U-shaped frame is provided with a suspension supporting unit. According to the touch tool full-automatic braze welding equipment, through a four-stage heating mechanism, a four-stage flexible pressurizing mechanism, a seamless pressurizing fitting mechanism and an automatic feeding mechanism, full-automatic braze welding of a touch tool and a touch spot is achieved, the welding quality is stable, the working efficiency is high, and the equipment cost is low.

The invention discloses a copper row chain cleaner of a wire cutting machine. The copper row chain cleaner comprises a frame, wherein universal wheels are arranged below the frame; and a power transmission mechanism, a cleaning device, a copper row chain length adjusting mechanism and a copper row chain width adjusting mechanism are arranged on the frame. The copper row chain cleaner of the wire cutting machine is simple in operation and maintenance, guarantees the equipment and staff safety in the maintenance process, largely facilitates the maintenance operation, and improves the working efficiency. The cleaning capacity of the copper row chain cleaner is enhanced, so that the copper row chains with different lengths and different widths on the wire cutting machine and a stem cutting machine are cleaned, the cleaning time of the copper row chains is shortened, the labor intensity is relieved, the appearance of the copper row chain cleaner is not changed, the beauty is kept, the water vapor is not splashed outside in cleaning, the actual maintenance requirements are satisfied, the design requirements are satisfied, and the expected effect is achieved.

The invention relates to a device and method for anti-stuck and off-stuck of automobile tires. The device for anti-stuck and off-stuck of the automobile tires comprises a hub fixing device, a telescopic device and a pressing plate. The hub fixing device comprises a fixing frame, a stopping block and a rubber cushion; a longitudinal adjusting hole is formed in the middle of the fixing frame and fixed to a bolt hole of an outer rod through a bolt group in a matched mode; transverse adjusting holes are formed in the two ends of the fixing frame, the stopping block is fixed in the adjusting holes through the bolt group, and a stopping column is arranged on the stopping block; the telescopic device comprises the outer rod and an inner rod; the up, down, left and right directions of the outer rod are restrained through the hub fixing device, and the outer rod is fixed to a hub in a clamped mode; the hub and the outer rod are twined and fastened together through a pasting cloth tape; round holes in the inner rod and the outer rod are assembled and fixed by the inner rod through the bolt group, so that the inner rod is placed in a track arranged on the outer rod; and the pressing plate is installed at the outer end of the inner rod through bolts. The device for anti-stuck and off-stuck of the automobile tires is suitable for most automobiles with the hub, simple in structure, and convenient to install and carry, and the device for anti-stuck and off-stuck of the automobile tires has the scalability.

The invention discloses a novel multilayer film capable of improving extreme ultraviolet spectrum purity and thermal stability and belongs to the filed of extreme ultraviolet lithography. The novel multilayer film is a periodic multilayer film, and substrate of the periodic multilayer film is plated with a silicon (Si) layer and a molybdenum (Mo) layer in sequence, wherein the Si layer and the Mo layer are alternant. The novel multilayer film further comprises a thermal stability layer which is manufactured on the periodic multilayer film, wherein the Si layer and the Mo layer are alternant on the periodic multilayer film. The novel multilayer film capable of improving the extreme ultraviolet spectrum purity and the thermal stability can guarantee that reflectivity losses of extreme ultraviolet wavebands can be ignored and restrains reflectivity of wavebands out of band effectively on the condition that appearances of films are not changed, optical elements are not increased, radial directions of light are not changed and processing steps are not added in addition through the periodic multilayer film with an alternant Si layer and a Mo layer being plated with a silicon nitride (Si3N4) thermal stability layer.

The invention discloses a low-temperature plasma generating device with a stealth function, comprising discharging patches, an electromagnetic transparent dielectric coating, a micropore, a carbon fiber discharge electrode and a metal conducting layer. A low-temperature plasma generating method with a stealth function, the discharging patches are uniformly installed on the outer surface of military equipment, and the discharging patches are connected with a high-voltage power supply; the high-voltage power supply is controlled to release pulse high voltage, the pulse voltage is connected witha carbon fiber discharge electrode, dielectric barrier discharge is carried out under the action of the electromagnetic transparent dielectric coating to release the plasma, and a plasma cloud clusteris formed. According to the device in the invention, the high-frequency high-voltage plasma generator is used for manufacturing the plasma, that is, under a high-frequency voltage condition, a dielectric barrier discharge mode is used to avalanche the air into plasma, and radar signals can be shielded.

The invention discloses a cold fresh processing method for roe, which comprises the following steps of: performing first pass of sterilization and refreshing processing on stripped, twisted, cleaned and graded roe by using ozone water so as to directly kill pathogenic bacteria and effectively keep the flavor and shape of the roe; and cleaning the roe processed by the ozone water by using ice water, draining, putting the roe into a -1.5 to 0 DEG C freezer for cold fresh blending so as to effectively prevent the color of the roe from being changed in the processing and storing period and keep good freshness and nutritional ingredients of a product. The method has the advantages of simple and convenient operation and good practical value and application prospect.

A shear-resistant reinforcing method for a small-section hollow beam Is characterized in that shear-resistant reinforcement of a hollow beam is achieved by forming a hole in the bottom of the hollow beam, burying a pipe, arranging a plugging object to plug the inner end of a cavity of a to-be-reinforced area, pouring a reinforcing body into the cavity of the to-be-reinforced area of the hollow beam, drilling the bottom of the hollow beam from bottom to top and implanting shear-resistant steel bars penetrating through the reinforcing body and the bottom plate and the top plate of the hollow beam. The method can be achieved on the premise that traffic is not interrupted, the appearance of the hollow beam is not changed, the connecting keys effectively connect the reinforcing body and the existing beam body into a whole, the shear-resistant steel bars and the reinforcing body act together, the shear-resistant bearing capacity of the hollow beam is improved, the reinforcing effect is greatly improved, the operation steps are simple, and the construction efficiency is high.

The invention relates to the technical field of bridge reinforcement, in particular to a hollow slab beam reinforcement method. The method comprises the following steps of S1, determining a shear bearing capacity insufficient area and a shear bearing capacity satisfaction area of the hollow slab beam; S2, drilling at least one construction hole in the shear bearing capacity insufficient area so that the cavity of the hollow slab girder is communicated with the construction holes; S3, pouring lateral framework materials into the cavity of the hollow slab beam through the construction holes to form a lateral formwork, wherein the lateral formwork separates the shear bearing capacity insufficient region from the shear bearing capacity satisfaction region; and S4, filling the cavity of the shear bearing capacity insufficient region with reinforcing materials to form a solid reinforcing body. Through the construction holes, it can be ensured that reinforcing materials enter the cavity, andthe lateral formworks can prevent the reinforcing materials from flowing from the shear bearing capacity insufficient area to the shear bearing capacity satisfaction area, so the using amount of the reinforcing materials is reduced, the maintenance and reinforcement cost is reduced, and the situation that the bearing capacity of the lower structure of the bridge is affected due to excessive increase of the dead weight of the hollow slab beam is avoided.

The invention discloses a processing method for maintaining the elasticity and the flavor of clam meat, which comprises the steps of: selecting claw materials, temporarily breeding the clam to disgorge sands, sterilizing the clam by ozone after the clam is cleaned, then vacuum-packaging the clam by using high-barrier gas composites, then atmospherically cooking the packed clam, and finally cooling and freezing the clam for storing. The method can effectively maintain the elasticity and the sauce flavor of the clam and also can effectively prevent air in or outside a packaging bag from mutually penetrating during the refrigeration and the shelf life of the clam because the clam is vacuum-packaged by using the high-barrier gas composites, ensures the quality of the clam and prolongs the shelf life of the product.

A compact liquid-tube vacuum tube water heater compatible with a phase change heat storage function is available in four types, namely phase change heat storage, non-phase-change heat storage, single natural cycle heat storage, and double natural cycle heat storage. The compact liquid-tube vacuum tube water heater comprises liquid-tube vacuum tubes (1), an insulation water tank (2), a multifunctional header (3), a support (4) and the like. The upper end of a heat transfer liquid tube (16) in each liquid-tube vacuum tube (1) is communicated with a heat transfer liquid tube connector (7) of the insulation water tank (2) through a seal ring; the lower end of every heat transfer liquid tube (16) is communicated with a flow passage of a header tube (8) in the multifunctional header (3) through a seal ring. An electric heating tube (9) is mounted in the flow passage of the header tube (8) of the multifunctional header (3). A temperature control fan (18) is mounted on the insulation water tank (2). The liquid-tube vacuum tubes (1) include liquid-tube vacuum collector tubes and liquid-tube phase change heat storage vacuum collector tubes; the two types of tubes are universal, compatible and exchangeable and can be mixed for use. The compact liquid-tube vacuum tube water heater has the functions of freezing prevention, adjustable water temperature of the lower end of the water tank, controllable temperature of the upper end of the water tank and the like.

The invention relates to the field of an air conditioning device of a passenger car, in particular to a full-fresh-air overhead air conditioner which comprises a fresh air inlet, a fresh air door, a return air inlet, a return air grille, an air supply outlet, a core body dust filter screen, a fresh air filter screen, a condensate fan, a core body of an evaporator, an evaporation fan and a motor of the fresh air door, and has the characteristic structure that the full-fresh-air overhead air conditioner further comprises a return air door mechanism, an overflow air door mechanism, a return air door motor and an overflow air door motor; the design of the oversized fresh air inlet is adopted, and the return air door mechanism and the overflow air door mechanism are added, so that three running modes including full fresh air, part fresh air and full return air can be realized; due to the design of water leakage prevention, a rotary shutter structure is respectively adopted by the fresh airdoor, a return air door and an overflow air door which are respectively controlled by three independent motors; and a fresh air filtering device and a return air filtering device are arranged. The full-fresh-air overhead air conditioner has the characteristics of energy conservation, environmental protection, high comfortableness and good technological efficiency.

The invention discloses a magnetic coupling structure for wireless charging of an autonomous underwater vehicle and an autonomous underwater vehicle system. The magnetic coupling structure comprises atransmitting end arranged on a charging dock and a receiving end arranged on an autonomous underwater vehicle, wherein the transmitting end includes a transmitting magnetic core and a transmitting coil wound on the transmitting magnetic core; and the transmitting magnetic core includes an elongated main body and at least two winding portions located on the main body, and the transmitting coil includes split coils wound on the at least two winding portions. The magnetic coupling structure for wireless charging of the autonomous underwater vehicle provided by the invention solves the problems of poor endurance and difficult charging of the autonomous underwater vehicle. The receiving end of the magnetic coupling structure is small, occupies small internal space of the AUV, does not change the shape of the AUV, has stronger tolerance for misalignment, and reduces the docking accuracy of the AUV.

The invention provides a wind-assisted braking system for an automobile. The system comprises an auxiliary braking wing plate hidden on a trunk of the automobile, wherein one end of the auxiliary braking wing plate is hinged on a lower frame of a back windshield of the automobile; both sides of the auxiliary braking wing plate are fixed to two triangular brackets; one side of each triangular bracket is fixedly connected with the auxiliary braking wing plate; the auxiliary braking wing plate and the triangular brackets share a hinge point I with a cover plate of the truck of the automobile; a hemispherical cavity on a corner of the triangular bracket opposite to the auxiliary braking wing plate is connected with a ball head at one end of a hydraulic cylinder piston; the lower part of a hydraulic cylinder is hinged at the bottom of the trunk through a hinge point II; the hydraulic cylinder is connected with an oil path which is branched from a pressure accumulator and is provided with an electromagnetic valve for controlling closing of the oil path; the pressure accumulator is connected with an electric hydraulic pump of an anti-lock braking system (ABS) of the automobile and connected with a hydraulic oil tank through the oil path; and the electromagnetic valve is connected with a controller of the ABS of the automobile and directly leads to the hydraulic oil tank through a reflux oil path. The system has the advantages of simple structure, reliable work, small size and low manufacturing cost.

The invention relates to a method for changing the inherent frequency of an underwater residence system to suppress vortex-induced oscillation, and belongs to the field of underwater vortex-induced oscillation suppression. The method comprises the steps: establishing a residence system underwater, wherein the system comprises an underwater mooring body, a suspension cable, a hoisting mechanism, anacceleration sensor, a controller and an anchor block, the length of the suspension cable is adjusted through the hoisting mechanism, the frequency domain characteristics of movement of the underwater mooring body are obtained through Fourier analysis of acceleration signals of the underwater mooring body, vibration signals caused by hydrodynamic force are decoupled through inherent frequency calculation, the water flow speed is obtained, and the inherent frequency of a system is adjusted through a vortex-induced oscillation suppression interval obtained through derivation, and the purpose ofsuppressing vortex-induced oscillation is achieved.

The invention discloses a front-end collision energy absorption system of a non-loading type light truck. The front-end collision energy absorption system comprises a girder front-end energy absorption beam, a girder front-end secondary energy absorption beam and a cab front-end energy absorption longitudinal beam, wherein the girder front-end energy absorption beam comprises an energy absorption beam web plate and an energy absorption beam outer plate; a light-truck girder is cut off from the position in front of a girder part bracket where a vehicle body and the girder are suspended to the position of a front anti-collision C-shaped beam and is replaced with the girder front-end energy absorption beam; the girder front-end secondary energy absorption beam comprises a secondary energy absorption inner plate and a secondary energy absorption outer plate; a right-angle triangular shape is formed by surrounding the girder front-end energy absorption beam, the girder front-end secondary energy absorption beam and the front anti-collision C-shaped beam; a front-end energy absorption longitudinal beam outer plate of the cab front-end energy absorption longitudinal beam adopts a U-shaped section-variable panel with the height which is gradually increased from front to back; the front-end energy absorption longitudinal beam outer plate is used for covering and fixing a part, located on a cab front boarding, of a cab front-end floor longitudinal beam. Under the condition that the shape is not changed and the front-end energy absorption distance is not increased, the front-end collision energy absorption effect of the non-loading type light truck is improved.

The invention discloses a bidirectional buffer speed adjustable hydraulic oil cylinder, and belongs to the field of hydraulic cylinders. According to the technical aims to be achieved, the shape of the oil cylinder is not changed, the size and mounting space of the oil cylinder are not increased, the structure is simple, and the bidirectional buffer speed is adjustable through the hydraulic oil cylinder. According to the technical scheme adopted for achieving the technical aims, the bidirectional buffer speed adjustable hydraulic oil cylinder comprises a cylinder body; a piston and a piston rod are arranged in the cylinder body; a throttling channel is arranged on the side, back onto the piston rod, of the piston, and a first one-way valve is arranged in the middle and connected with a rodless cavity oil inlet; a rod cavity oil inlet and a second one-way valve are arranged at the rear end of the piston rod; a thickened segment is arranged on the piston rod and provided with an oil leaking groove; and the piston rod is controlled to stretch out and retract through the one-way valves, and the stretching-out and retracting speed is controlled through the throttling channel and the oilleaking groove. The bidirectional buffer speed adjustable hydraulic oil cylinder can be widely applied to the field of hydraulic cylinders.

The invention discloses a nano bismuth oxide anti-radiation ceramic coating, and a preparation method and application thereof. The ceramic coating is formed by curing slurry of a characteristic coating prepared from, by mass, 10-25% of nano bismuth oxide; 20-30% of silane; 2-5% of acid; 45-60% of a solvent; and 1-5% of an auxiliary agent. The slurry of the characteristic coating is cured to form a ceramic coating, and the content of bismuth oxide in the ceramic coating can reach up to 80 wt%. The invention also discloses the preparation method of the ceramic coating. The preparation method comprises the following steps: preparing a characteristic coating, coating the surface of a tube shell substrate material with the characteristic coating, preparing a characteristic coating, and curing to obtain the ceramic coating. The invention further discloses the application of the ceramic coating. The ceramic coating is used for improving the radiation resistance of an electronic component base body, and damage to the electronic component base body by high-energy radiation such as gamma rays or X rays can be effectively reduced.

The invention discloses a processing method of nostoc commune. The processing method comprises the following steps of (1) adding water to a vortex air pump cleaning pond for soaking; (2) opening a vortex air pump for flushing, and after performing drainage, performing flushing for the second time with the vortex air pump; (3) under the condition of minus 10 to 0 DEG C, performing freezing in a refrigerating chamber, loading frozen nostoc commune in a kraft paper box, performing sealing, performing burying in loess to which diatomite is mixed, and performing purifying; (4) performing drying ina vacuum box until the water content is 18-25%; (5) loading an appropriate amount of white fused alumina powder to the kraft paper box, and burying the nostoc commune in the white fused alumina powder; (6) putting the kraft paper box in a fresh keeping cabinet with a drying agent, enabling the fresh keeping cabinet to be placed under the condition of constant temperature for 48-60 hours, and gently brushing away powder stuck to the surface of nostoc commune with a brush; and (7) performing blasting in an air box, performing drying for 12 hours, taking out the dried nostoc commune, performing cutting, and performing sorting and classifying with a sieve so as to obtain the natural nostoc commune. The condition that nutrient components of the nostoc commune do not run off is guaranteed to themaximum extent, original appearance, shape and color are maintained, and the product quality is improved.

A hollow slab bridge bending and shearing mixed reinforcing method comprises the following steps: arranging longitudinal steel bars in a cavity of a hollow slab bridge, pouring a filler into the cavity, drilling holes in the bottom of the hollow slab bridge from bottom to top, and implanting one or more rows of shearing-resistant steel bars to finish the bending and shearing mixed reinforcement ofthe hollow slab bridge. The filler is connected with the existing beam body into a whole through the shear-resistant steel bars and connecting keys, the longitudinal steel bars and the filler act together to realize the anti-bending reinforcement of the hollow slab bridge, and the shear-resistant steel bars and the filler act together to realize the shear-resistant reinforcement of the hollow slab bridge. The method can be achieved under the condition that traffic is not affected, the structure is simple and easy to understand, the construction efficiency is high, the appearance of an existing bridge is not changed, the bending resistance and shear capacity of the hollow slab bridge are improved at the same time, and the improvement effect is remarkable.

The invention discloses a numerically controlled lathe which comprises a rack. The rack is provided with a main shaft, a chuck is installed on the main shaft, an accommodating cavity is arranged in the middle portion of the chuck, three clamping claws used for clamping and fixing a product are arranged in the accommodating cavity, the clamping claws are provided with clamping faces used for abutting against the radial outer surface of the product, a slag removing component is also arranged in the accommodating cavity, and the slag removing component includes a brush head capable of abutting against the clamping surface and a power piece capable of driving the brush head to do reciprocating motion, so that turning chippings attached to the clamping claws are brushed away, and the conditionthat the finish machining surface of the product are damaged by pressing or scratching due to the fact that the turning chippings are left between the clamping claws and the product is avoided; and inaddition, the slag removing component is arranged in the accommodating cavity for containing the clamping claws, the shape of the chuck is not changed, the structure improvement of the chuck is less,and implementation is easy to achieve.

The invention relates to the technical field of prestressed structures, and discloses a prestressed concrete beam and a prefabricating method. The prestressed concrete beam comprises a prestressed tendon, a protective device and an anti-corrosion material; the prestressed tendon comprises a prestressed failure section and a prestressed effective section; the protective device comprises a protective sleeve and a spiral stirrup, wherein the protective sleeve sleeves the prestressed failure section, and the spiral stirrup sleeves the protective sleeve and part of the prestressed effective section; and the protective sleeve is filled with the anti-corrosion material. The prestressed concrete beam prefabricating method is used for prefabricating the prestressed concrete beam. According to the beam and the method, the prestressed failure section and concrete are isolated through the protective sleeve, so that the prestressed failure function is realized; meanwhile, the protective sleeve canserve as a common steel bar, the anti-cracking effect of the protective sleeve is exerted; and the spiral stirrup sleeves the prestressed effective section and spans the prestressed failure section and the prestressed effective section, so that the anti-cracking performance of a concrete stress mutation area is enhanced.

The invention discloses a low-voltage overhead parallel bunched insulated wire with prefabricated micro tubules for blown optical cables. The low-voltage overhead parallel bunched insulated wire comprises a plurality of parallelly-arranged electric conduction units; the electric conduction units are wrapped with insulating sheaths; the electric conduction units are connected with each other sequentially through connecting bars; and the micro tubules for blown optical cables are arranged in the connecting bars. According to the low-voltage overhead parallel bunched insulated wire, conductors can be independent from optical fibers, and therefore, when troubleshooting is performed on an electric unit or an optical unit alone, the electric unit or the optical unit will not influence each other; the maintenance or upgrade project of an optical network does not need power outage, and therefore, the upgrade and expansion of the optical network can be flexible.

The invention discloses a remote controller provided with a photo-frame-shaped solar cell. The remote controller comprises a remote controller shell provided with a button area and a display screen, the display screen is embedded in the remote controller shell, a circuit board and a battery are arranged in the remote controller shell, the remote controller shell is also provided with a solar cell panel, the solar cell panel is photo-frame-shaped used for charging the cell, and the photo-frame-shaped solar cell panel covers the surface of the display screen. According to the remote controller, the photo-frame-shaped solar cell panel covers the surface of the display screen, the remote controller shell is only provided with an embedded hole, the sealing performance of the remote controller shell is not influenced, the original shape of the remote controller is not fundamentally changed, and the waterproof and dustproof effect of the display screen can be further improved.

The invention relates to the technical field of prestress structures, and discloses a prefabrication method of a prestressed concrete beam and the prestressed concrete beam. The prefabrication methodof the prestressed concrete beam comprises the steps that S1, a protection device is mounted on a prestressed tendon needing forced prestress failures and is used for isolating the prestress failure segment of the prestressed tendon from concrete; S2, the tensioning force of the prestressed tendon is released; S3, the protection device is filled with an anti-corrosion material, and the prestressedtendon is wrapped; and S4, the end of the cutoff prestressed tendon is blocked. The protection device is mounted on the prestressed tendon needing forced prestress failures and isolates the prestressfailure segment of the prestressed tendon from the concrete so as to achieve the prestress failure function, the prestressed tendon can serve as a common steel bar, and the anti-crack function of theprestressed tendon is achieved; and the protection device is filled with the anti-corrosion material, the prestressed tendon is wrapped so as to achieve the anti-corrosion aim of the prestressed tendon, the durability performance of the prestressed tendon is improved, and then the anti-crack performance of the concrete is improved.

The invention discloses a scooter type luggage case. The luggage case comprises a luggage case body, a telescopic adjusting pedal assembly and a detachable handrail rod assembly, the telescopic adjusting pedal assembly is arranged on the side wall of the luggage case body, and the detachable handrail rod assembly is arranged on the side wall of the luggage case body. The invention belongs to the field of luggage cases, and particularly relates to the scooter type luggage case which not only ensures the usability of a scooter, but also does not change the overall shape of the luggage case, reduces the occupied space of the scooter to the minimum extent and improves the practicability of the scooter type luggage case through the arrangement of a telescopic adjusting pedal assembly and a detachable handrail assembly.

The invention discloses a magnetic coupling structure for wireless charging of an autonomous underwater vehicle and an autonomous underwater vehicle system. On the receiving end, the transmitting end includes a transmitting magnetic core and a transmitting coil wound on the transmitting magnetic core, and the transmitting magnetic core includes an elongated main body and at least two winding parts on the main body , the transmitting coil includes a split coil wound on the at least two winding parts. The magnetic coupling structure for wireless charging of the autonomous underwater vehicle provided by the invention solves the problems of poor battery life and difficult charging of the autonomous underwater vehicle. The receiving end of the magnetic coupling structure is small in size, occupies a small space inside the autonomous underwater vehicle, does not change the shape of the autonomous underwater vehicle, has a stronger tolerance for misalignment, and reduces the cost of the autonomous underwater vehicle. Docking accuracy.

The invention discloses a web arch structure reinforced by a frame type reinforcing structure, which comprises a web arch. The web arch is provided with a reinforcing structure, the reinforcing structure comprises a longitudinal rib and a diaphragm plate, the longitudinal rib is poured at the arch top part of the inner side of the web arch along the longitudinal direction of the web arch, and the diaphragm plate is fixedly poured at the inner side of the web arch along the spanning direction of the web arch, and the diaphragm plate and the longitudinal ribs are poured and connected into a whole to form a space reinforcing frame structure of the web arch. A reinforced space frame structure is formed, and the resistance of the web arch structure for resisting various load effects is obviously improved; the main reinforcing steel bars of the reinforced diaphragm plate can effectively restrain the opening deformation of the web arch under load and prevent the expansion of the midspan vertical crack of the web arch; construction is relatively easy and convenient, compared with a reinforced concrete reinforced web arch, the material consumption and the dead weight of the reinforced structure are remarkably reduced, the better reinforcing effect is achieved, damage to the original web arch caused by reinforcing embedded steel bars is reduced, and on-site reinforcing construction operation is remarkably reduced; and compared with sticking of carbon fibers or steel plates, the web arch reinforcing effect is remarkably improved.

The invention provides a directional fiber reinforced glue joint connection method, and belongs to the technical field of composite material part connection. Drilling holes in the end surfaces of the connecting ends of the two adjusting sheets; the ends of the carbon fiber filaments are coated with an adhesive; inserting carbon fiber tow guide ends into the holes in the butt joint end faces of the two adjusting sheets, guiding the carbon fiber tow to form a directional fiber bundle between the adjusting sheets through the holes in the two ends, and tensioning the fiber bundle to enable the two ends of the adjusting sheets to be aligned; filling the filler into a cavity formed after the two adjusting sheets are folded, removing the adhesive tapes on the adjusting sheets after the filler is cured, and performing surface treatment on the outer surfaces of the butted parts of the adjusting sheets; cutting the carbon fiber fabric according to the size of the polishing area; and preparing a two-component epoxy resin adhesive, infiltrating the carbon fiber fabric with the adhesive, and laying the carbon fiber fabric by taking the butt seam of the adjustment sheet as the center. And the strength of a connected composite material structural part can be effectively guaranteed, changes of structural attributes are reduced, the manufacturing cost is low, implementation is convenient, and the method is used for connecting composite material parts.