106results about How to "Small structure size" patented technology

The invention belongs to the field of wireless communication, and particularly relates to a Butler matrix feed network with a slow wave structure, which comprises a substrate integrated waveguide and a Butler matrix feed network formed on the substrate integrated waveguide, the Butler matrix feed network comprises a first 3dB coupler, a second 3dB coupler, a third 3dB coupler, a fourth 3dB coupler, a first cross coupler, a second cross coupler, a first 45-degree slow wave loading phase shifter, a second 45-degree slow wave loading phase shifter, a first 0-degree slow wave loading phase shifter and a second 0-degree slow wave loading phase shifter. According to the Butler matrix feed network, a row of non-radiation transverse slots are introduced into each phase shifter to serve as phase delay lines, so that the structure size of the Butler matrix feed network is reduced, and the dispersion is reduced.

The invention relates to a mechanical arm and a double-arm robot. The mechanical arm comprises a supporting body, a shoulder structure, a large arm, an elbow structure, a small arm and a wrist structure. The shoulder structure comprises a shoulder differential assembly, a shoulder rope driving assembly and a shoulder joint, and the shoulder joint has three degrees of freedom and comprises a shoulder rotating seat fixedly arranged on the shoulder differential assembly and a shoulder adapter which is pivoted to the shoulder rotating seat, fixedly arranged at the first end of the big arm and in transmission connection with the shoulder rope driving assembly; the wrist structure comprises a wrist fixing support, a wrist rope differential assembly, a wrist rotation driving assembly and a wrist joint, and the wrist joint has three degrees of freedom and comprises a wrist rotation support pivoted to the wrist fixing support and a wrist deflection support which is in transmission connection with the power output end of the wrist rope differential assembly and pivoted to the wrist rotation support; the wrist rotation driving assembly is installed on the wrist deflection support and used for being in transmission connection with the tail end mechanical arm. The shoulder joint and the wrist joint of the mechanical arm are small in mass and inertia.

The invention relates to the technical field of aviation optical cables, in particular to a high-temperature optical cable for aviation and a preparation method of the high-temperature optical cable for aviation, and the high-temperature optical cable for aviation comprises a high-temperature optical fiber, a stainless steel loose sleeve protection tube, a fiber-woven reinforcement piece and a high-temperature-resistant polymer sheath, the stainless steel loose tube protection tube is sleeved with the fiber woven reinforcing piece, and the fiber woven reinforcing piece is sleeved with the high-temperature-resistant polymer sheath; according to the technical scheme, the temperature resistance grade of the aviation optical cable can be improved to 300 DEG C, and the product is small in structural size and light in weight and has good use characteristics of tensile strength, compression resistance, bending resistance and the like.

The invention discloses a self-locking type hydraulic supporting mechanism, and belongs to the technical field of transport trailer structures, the self-locking type hydraulic supporting mechanism specifically comprises a trailer, a hydraulic cylinder and an anti-overturning structure, and the trailer is provided with an air cylinder and a vehicle-mounted storage battery; the hydraulic cylinder is connected with a vehicle-mounted storage battery, the hydraulic cylinder replaces a front side supporting leg of the trailer, a cylinder body a of the hydraulic cylinder is installed on the front side of the trailer, and a piston rod a of the hydraulic cylinder points to the ground. The anti-overturning structure is arranged between the cylinder body a and the piston rod a and used for preventing the piston rod a from retracting inwards, the self-locking type hydraulic supporting mechanism can be remotely controlled to automatically ascend and descend (or can be operated in a cab) under the condition of power failure and fuel cut, a traction disc can be separated from a trailer, and disengaging and connecting of the tractor and the trailer can be completed in about one minute. And the labor intensity and the unhooking time are greatly reduced.

An electromagnetic loading device for generating large displacement and a test method thereof, wherein an active coil and a sleeve are mounted on a central rod, and the inner circumferential surface of the sleeve is slidably matched with the outer circumferential surface of the central rod. A secondary coil is mounted on the sleeve, and the secondary coil and the sleeve are interference matched. A magnetic yoke made of soft magnetic material is designed outside the active coil and the secondary coil to constrain the magnetic lines of force of the pulse magnetic field generated by the active coil and the secondary coil under pulse excitation to diverge outward, so that the magnetic lines of force are concentrated around the coil, thereby increasing the electromagnetic force without increasing the capacitance size and initial voltage of the active coil charging and discharging circuit. According to numerical simulation, when the maximum voltage and capacitance are limited, the main force-bearing components of the loading device are always in the elastic stage of the secondary coil, the loading rod and the pad during the loading process, so that the entire loading device can be reused and the test repeatability is good.

The invention discloses a rectangular twisted waveguide capable of being twisted at any angle, and relates to the technical field of high-power microwave and millimeter wave electronics. The rectangular twisted waveguide comprises an input rectangular waveguide, a three-circle-shaped twisted waveguide and an output rectangular waveguide which are arranged in sequence. The three-circle twisted waveguide is formed by superposing a small circular hole in the middle and two large circular holes which are symmetrically formed in the two sides and have the same size, the three circular holes have the same thickness and are perpendicular to any cross section in the electromagnetic wave transmission direction, the circle centers of the small circular hole and the two large circular holes are located on the same straight line, and the straight line is a circle center axis; the included angles between the narrow side center lines of the input rectangular waveguide and the output rectangular waveguide and the circle center axis are the same. The rectangular twisted waveguide capable of being twisted at any angle is applied to different frequency bands, the size of the twisted waveguide can be reduced, the production cost can be reduced, and the twisting angle of the twisted waveguide can be changed at any angle.

The invention relates to a magnetron plasma arc wire powder synergistic surfacing device and a surfacing method. The device comprises a welding gun fixing support; the welding gun is arranged on the welding gun fixing bracket, is used for realizing metallurgical bonding between a base material and cladding metal and comprises a welding gun tube, a non-consumable welding electrode and an inner nozzle assembly; the non-consumable welding electrode is wrapped by an insulating clamping sleeve and is fixed in the welding gun tube; the inner nozzle assembly is arranged between the welding gun tube and the welding electrode; the inner nozzle assembly is provided with a powder feeding port, a shielding gas nozzle and an ion gas nozzle; and the wire feeding mechanism is arranged on the welding gun fixing bracket and is used for feeding cladding metal to the surface of a base material. The method has the beneficial effects that the electric arc is controllable, parameters such as the direction and speed of cladding metal entering a molten pool can be adjusted, the surfacing process is stable, chemical components of a cladding layer are adjustable and controllable, the cladding speed is high, robot surfacing can be achieved, the automation degree of surfacing is improved, and the labor cost of surfacing is reduced.

The invention relates to a spatial parallel mechanism, in particular to a spatial three-translation and one-rotation parallel mechanism which comprises a base, a moving platform and at least three branch chains, the moving platform is arranged above the base, and the at least three branch chains are connected between the moving platform and the base in parallel; each branch chain comprises a parallel four-connecting-rod support arm and a tail-end connecting rod, the lower end of the parallel four-connecting-rod support arm is hinged to the base, the upper end of the parallel four-connecting-rod support arm is hinged to one end of the tail-end connecting rod, the other end of the tail-end connecting rod is hinged to the movable platform, and the swing direction of the tail-end connecting rod is perpendicular to the swing direction of the parallel four-connecting-rod support arm and is parallel to the plane of the base; all the branch chains act synchronously, so that the movable platform can achieve three-degree-of-freedom translational motion and rotary motion around the vertical axis. The multi-branch parallel mechanism has the characteristics that the moving branch chains are simple in movement and can be decoupled in movement, and the multi-branch parallel mechanism is small in degree of freedom and high in rigidity, and the precision and quality of the mechanism in the operation process are easily guaranteed.

The invention discloses an artificial surface plasmon microstrip transmission line with a crosstalk suppression effect. The transmission line conduction band is provided with a periodic internal notch groove structure which is used for transmitting microwave artificial surface plasmons with strong local field constraint performance. The periodic notch grooves can be S-shaped, spiral, T-shaped, cross-shaped, KoCh-shaped, Moore Curve-shaped and other forms and are distributed in the microstrip conduction band, and the width of the conduction band is not increased, so that the remarkable inhibition effect that the far-end crosstalk is lower than-30dB is realized on the premise that the size of the microstrip line is not changed. The microstrip transmission line has the low-pass characteristic, the frequency response falling edge is steep, the cut-off frequency can be flexibly adjusted by adjusting the notch groove width and the number of iterations, and application requirements of different frequency bands can be met by scaling. The structure is simple, the size is compact, inter-line crosstalk can be effectively suppressed, the signal transmission quality is improved, the strict signal integrity requirement is met, and the high-frequency and high-speed signal transmission and functional devices are widely applied, and the wide application prospect is achieved.

The invention relates to a high-rotating-speed ultrahigh-pressure reheating condensing steam turbine which comprises an integral chassis, a cylinder, at least two bearing seats arranged at the front end and the rear end of the cylinder respectively and rotors supported on the two bearing seats, the cylinder extends in the front-back direction and is arranged on the integral chassis, and the high-rotating-speed ultrahigh-pressure reheating condensing steam turbine comprises a high-pressure outer cylinder and a high-pressure inner cylinder arranged in the high-pressure outer cylinder. The low-pressure rear cylinder is installed on the rear side of the high-pressure outer cylinder, the high-pressure outer cylinder is provided with a high-pressure steam exhaust structure allowing high-pressure steam to be exhausted and a reheat steam inlet cavity allowing reheat steam to enter, a high-pressure cavity, a medium-pressure cavity and a steam inlet cavity are defined between the high-pressure outer cylinder and the high-pressure inner cylinder, the high-pressure cavity and the medium-pressure cavity are distributed in a spaced mode, and the steam inlet cavity communicates with the high-pressure cavity. A low-pressure cavity communicated with the medium-pressure cavity and a low-pressure steam exhaust structure for exhausting low-pressure steam are formed in the low-pressure rear cylinder; the rotor is sequentially arranged in the high-pressure cavity, the low-pressure cavity and the steam exhaust cavity in a penetrating mode. The invention aims to solve the problems of low efficiency, large size and complex field installation of the existing low-power high-steam-admission-parameter steam turbine.

The invention provides a scanning electron microscope objective lens system and a detection method, and relates to the technical field of scanning electron microscopes. The magnetic lens device is used for focusing an incident electron beam; the deflection device, the anastigmator, the Wien analyzer group and the detection device are all located in an accommodating space in the magnetic lens device; the deflection device, the anastigmator and the Wien analyzer group are arranged along the optical axis of the incident electron beam and are arranged around the optical axis; the deflection device and the anastigmator are respectively used for adjusting the movement direction and shape of the incident electron beam so as to scan a to-be-tested sample through the incident electron beam, so that the to-be-tested sample generates signal electrons; the Wien analyzer group is used for adjusting the movement direction of the signal electrons to enable the signal electrons to enter the detection device; the detection device is located on the side, close to the magnetic lens device, of the deflection device, the anastigmator and the Wien analyzer set and used for generating a detection signal according to the signal electrons and achieving surface imaging of the to-be-detected sample. The imaging precision and the detection efficiency of the objective lens system are improved.

The linear vibration motor comprises a vibration unit arranged in a shell and an elastic piece which is fixed with the vibration unit and suspends the vibration unit in the shell, the vibration unit comprises a mass block fixedly connected with the elastic piece, and the elastic piece comprises an elastic part connected with two fixing parts. An elastic part comprises two elastic arms which are arranged at intervals in the first direction, a mass block comprises a main body part connected with an elastic part, the main body part comprises a side face connected with the elastic part, and the mass block further comprises protruding parts which protrude and extend towards a shell from the side face in the vibration direction. The elastic parts and the protruding parts are oppositely arranged at intervals in the second direction perpendicular to the vibration direction and the first direction, the problems that in the prior art, due to the fact that an elastic piece is only provided with a single elastic arm, the structure size is large, and plastic deformation is likely to happen are effectively solved, and meanwhile the size of the mass block is effectively increased; and the performance of the linear vibration motor is further improved.

The invention provides a self-propelled extended-range vegetable tobacco seedling transplanter and a continuous tobacco seedling transplanting method, the transplanter comprises a complete machine support, a walking mechanism, a seedling dropping mechanism, a seedling planting mechanism, a power assembly and a controller, the complete machine support is arranged on the walking mechanism, and the seedling dropping mechanism, the seedling planting mechanism, the power assembly and the controller are all arranged on the complete machine support; the seedling dropping mechanism comprises a plurality of seedling dropping cylinders which are distributed at equal intervals in the circumferential direction, the seedling planting mechanism comprises a seedling receiving guide hopper, a well cellar type seedling planting nozzle and a seedling planting driving execution assembly, and the power assembly provides electric energy for the walking mechanism, the seedling dropping mechanism, the seedling planting mechanism and the controller. The transplanter is simple in structural composition and convenient for subsequent maintenance and repair; when transplanting operation is carried out, the action of each execution mechanism is independently executed by an independent motor, and the controller can flexibly control the running state of each motor according to requirements, so that accurate matching and flexible adjustment of the executable action can be realized.

The tent assembly comprises a main tent frame and an auxiliary tent frame, the auxiliary tent frame is arranged on the main tent frame and has a supporting state and a non-supporting state, and in the supporting state, the auxiliary tent frame extends outwards from the main tent frame so as to enlarge the shielding range of the main tent frame; and in a non-supporting state, the auxiliary tent frame is folded to the main tent frame or the auxiliary tent frame is detached from the main tent frame. According to the tent assembly, when the auxiliary tent frame is in the supporting state, the auxiliary tent frame extends outwards from the main tent frame, so that the structural size of the tent assembly is increased, and meanwhile the shielding range of the tent assembly is enlarged. When the auxiliary tent frame is in the non-supporting state, the auxiliary tent frame is close to the main tent frame or detached from the main tent frame, at the moment, the structural size of the tent assembly is relatively small, and the shielding range is also relatively small. In this way, the state of the auxiliary tent frame can be selected according to the use scene of the carrier, so that the structural size of the tent assembly can be conveniently adjusted.

The utility model discloses a winch which comprises a bearing module, a driving module, a transmission module and a winding drum module, the driving module, a gear speed changing module and the winding drum module are arranged on the bearing module, the bearing module comprises a winch frame, and the driving module comprises an alternating current motor. The gear speed changing module comprises a gear speed changing box, an input shaft and an output shaft, the winding drum module comprises a roller, a roller shaft and a hydraulic disc brake device, an alternating-current motor is arranged at one corner of the end face of the winch frame, a driving shaft is arranged on the alternating-current motor, and the driving shaft is connected with the input shaft through a gear coupling. The input shaft is connected with the output shaft, one end of the output shaft is connected with one end of the roller shaft, a roller is arranged in the middle of the roller shaft, and a hydraulic disc brake device is arranged at the other end of the roller shaft. According to the utility model, the reliability of the winch is improved by adopting the combined type of the dynamic braking of the motor and the hydraulic disc type braking.

The slope embankment pushing type landslide treatment structure comprises an embankment side slope, a construction ditch is formed in the slope toe of the embankment side slope and located at the bottom of a potential sliding face of the embankment side slope, an assembly type pile plate is arranged in the construction ditch, and the bottom of the assembly type pile plate is inserted into a soil body. The upper portion of the fabricated pile plate extends in the axial direction of the construction ditch, and backfill is arranged between the construction ditch and the fabricated pile plate. According to the treatment structure disclosed by the utility model, large-range excavation on the slope during construction is reduced, so that the stability of an original embankment soil body cannot be further disturbed, the stress balance state of the original soil body cannot be damaged, and the possibility that the original high slope is faced with instability damage is avoided; the construction is simple, the construction period is short, and the construction cost is low.

The utility model provides a mechanical arm structure for a small coal mining machine and the coal mining machine, and relates to the technical field of coal mining machines, the mechanical arm structure comprises a supporting piece, a crank arm and a telescopic piece, the crank arm comprises a first arm section and a second arm section which are connected, one end, deviating from the second arm section, of the first arm section is rotationally connected with the supporting piece, and a first rotation center is formed. The end, away from the first arm section, of the second arm section is used for being connected with a machine head and forming a mounting center, and the end, close to the mounting center, of the second arm section inclines downwards. One end of the telescopic piece is rotationally connected with the supporting piece to form a second rotating center, and the other end of the telescopic piece is rotationally connected with the first arm section to form a third rotating center so as to drive the machine head to deflect up and down. According to the mechanical arm structure provided by the embodiment of the invention, by optimizing the sizes of all the parts, on the premise that a large excavation range is guaranteed, the structural size of the mechanical arm is greatly shortened, the gravity center is lowered, the weight is reduced, and the strength, stability and the like are improved.

The application discloses a kind of optical fiber side light extraction structure and method, belong to optical fiber side light extraction technical field, structure has including femtosecond grating light extraction component, filter component including filter layer and with slit light shielding layer, and detection component.The method includes: with grating diffraction separation optical signal in fiber core, with filter component filters optical signal, with detector receives signal.The application is by femtosecond laser in fiber core and writes small refractive index modulation area, with diffraction effect will transport light be introduced with specific angle to side, again cooperate external filter and metal slit and constitute spatial filter, physically block the stray light deviating from preset angle.This internal diffraction+external filter synergic mechanism avoids physical damage optical fiber surface, and realizes high purity, high directional signal extraction under micro size.

This invention belongs to the field of underwater launch technology, specifically relating to an underwater projectile configuration design. It mainly consists of a projectile body and a pusher block. The projectile body adopts a hollow thin-shell structure, with a stepped structure at the front end and four (or more) evenly distributed 90° inclined slots at the rear. The pusher block is a short cylindrical structure with a through hole in the center, sealed by a sealing membrane. This device is small in size, with a diameter of 8-10 mm, making it suitable for underwater launch.

The utility model discloses a closed chip consumable, including main part, be equipped with sample inlet, pre dilution area, ration area, mixing area and detection unit on the main part, and pre dilution area includes premixing cavity and premixing fluid channel with its export intercommunication, and mixing area includes mixing cavity and mixing fluid channel with its export intercommunication, sample inlet, premixing cavity, premixing fluid channel, ration area, mixing cavity, mixing fluid channel and detection unit sequence connection, and premixing cavity and mixing cavity all store reagent in, and premixing cavity and mixing cavity can be pressed and moved, and after pressing and moving, the content in it is mixed in it. This consumable can realize zero contact operation, can avoid cross contamination and operating error, and shorten the detection time. Moreover, premixing cavity can handle sample in advance and then make sample enter each mixing cavity and handle, this can reduce the structure size of each mixing cavity, thereby reduce the structure size of consumable.

The utility model relates to the technical field of wire-to-board connectors, and discloses a small dustproof wire-to-board, which comprises a main body and a dustproof cover arranged on the main body, a wire harness A is arranged at the rear side of one side of the main body, a wire harness B is arranged at the rear side of one side of the main body, and the wire harness A and the wire harness B are horizontally arranged. The inner ends of the wire harness A and the wire harness B are provided with terminals, the structural size is small, more structural limitation requirements can be met, the current-carrying capacity is strong, 140A / Pin can be achieved, two types of left outgoing lines and right outgoing lines are provided for customers to select, the dustproof cover is designed, a certain protection function and a short circuit prevention effect are achieved, the wire harnesses are protected, separation is prevented, and the service life of the wire harness is prolonged. And the current-carrying capability and the stability are improved by using an ultrasonic welding technology.

The invention relates to the technical field of LED lighting source packaging, and particularly discloses a fin-type water-cooling-heating-power separation copper substrate and an LED module manufacturing method, and the method comprises the following steps: S1, selecting a copper plate, and cutting the copper plate; step S2, etching a boss; step S3, attaching the PCB circuit board; s4, shoveling teeth; s5, CNC machining is carried out; s6, boss surface treatment is carried out; step S7, fixing the LED chip; step S8, welding a wire; s9, dotting / powder spraying; step S10, protecting the glass sheet; and step S11, testing and sorting. According to the invention, the traditional packaging substrate is changed, the fins on the copper substrate are in direct contact with the cooling liquid, the level from the LED chip to the radiator is reduced, the heat flow channel is shortened, the heat resistance of the light source is reduced, and more advanced heat conduction materials are adopted, so that the long-term stable and effective light output of the LED light source is ensured; and the heat dissipation structure and the weight of the lighting device can be greatly reduced.

The utility model relates to the technical field of instruments, and provides a flow instrument which comprises a shell, a communicating pipe and a measuring assembly. Wherein the shell is provided with an inlet, an outlet and a containing cavity, the inlet and the outlet are formed in the top of the shell in a spaced mode in the first direction, the inlet and the outlet are both communicated with the containing cavity, and fluid flows in the containing cavity; the communicating pipe is located in the containing cavity and provided with a communicating cavity, the communicating cavity penetrates through the two ends of the communicating pipe in the first direction, and one end of the communicating pipe communicates with the outlet; the measuring assembly is arranged on the communicating pipe in the second direction and used for detecting the flow of fluid flowing through the communicating cavity in the first direction. By means of the structure, the space proportion of the flow instrument can be reduced.

The invention relates to the technical field of commercial vehicle electric drive axles, and discloses a coaxial three-gear sequence gear shifting commercial vehicle electric drive axle integrated with a planet row differential reducer, which comprises a motor, a gear shifting system assembly, a speed reduction planet row assembly, a differential reduction planet row assembly and a differential lock assembly, the differential reduction planet row assembly is connected with the speed reduction planet row assembly, the differential lock assembly is arranged on one side of the differential reduction planet row assembly, a left half shaft and a right half shaft are connected to the differential reduction planet row assembly, one end of the left half shaft is located on the outer side of the gear shifting system assembly, and one end of the right half shaft is located in the differential lock assembly. The gear shifting system assembly is connected with the motor and the speed reduction planet row assembly. The sequential gear shifting structure is used, only one gear shifting system is designed, the number and weight of parts are reduced, the assembly and after-sale fault risks are reduced, and through sequential gear shifting, the possibility that a mechanical structure is fool-proof and gear skipping does not occur is achieved.

The invention provides an integrated reactor top assembly, a reactor and a reactor top cable installation method, the integrated reactor top assembly comprises a shroud, a cable support plate and at least two layers of cable trays, one end of the shroud is connected with a pressure vessel top cover, and a control rod driving mechanism is located in the shroud; the cable supporting plate is arranged in the shroud and is positioned above the control rod driving mechanism; the at least two layers of cable trays are stacked in the axial direction of the shroud and are arranged above the cable supporting plate; wherein a connector panel is arranged on the inner wall, above the cable tray, of the shroud, and a cable connected with the control rod driving mechanism passes through the cable supporting plate and the cable tray and is connected to the connector panel. According to the reactor top assembly, the connector panel is arranged in the surrounding cylinder, so that the external space occupation of the integrated reactor top assembly is reduced, the structural size of the integrated reactor top assembly is reduced, and equipment can be conveniently hoisted and stored in a refueling pool.

The application discloses a broadband circularly polarized magnetoelectric dipole antenna, which comprises a dielectric plate, four magnetoelectric dipole units, a reflector, a feed structure and a feed network. The flowing path of the radiation current is improved by opening a rectangular slot on the electric dipole and a rectangular slot and an n-shaped slot on the magnetic dipole, and the impedance bandwidth is widened. The signal can be coupled to the radiator by adopting a Γ-shaped feed structure, and the orthogonal cross feed is realized through the feed network composed of three-dimensional parallel coupling lines. The antenna has a simple and compact structure, the reflection coefficient is less than -10 dB within 2.81-9.13 GHz, the relative bandwidth reaches 105%, the 3dB axial ratio bandwidth reaches 103%, and the antenna has good directivity and high gain within the entire impedance bandwidth range. Meanwhile, the antenna can be applied to the fields of wireless communication, radar system, satellite communication and the like to meet the communication requirements in different scenes.

The invention provides an optical fiber collimator, an MEMS optical acceleration sensor and a preparation method. The optical fiber collimator comprises a self-calibration coupling unit, a self-focusing collimation unit and a light beam steering adjusting unit. The self-calibration coupling unit is provided with an axial inner hole, and the self-focusing collimation unit and the light beam steering adjusting unit are both installed in the axial inner hole and are oppositely arranged. The first end face, facing the self-focusing collimation unit, of the light beam steering adjustment unit is not perpendicular to the axis of the axial inner hole. Light rays incident through the self-focusing collimation unit are reflected by the first end face to be turned and emitted out of the self-calibration coupling unit; the optical fiber collimator integrates the light beam steering and angle adjusting functions, after the system is installed, the direction of the emergent light beam can be optimized in real time by adjusting the light beam steering adjusting unit in the circumferential direction, and the installation difficulty is greatly reduced.

The invention relates to a circuit breaker (1). The circuit breaker (1) comprises: a housing (3) made of an electrically conductive material; an interruption unit (5) which is arranged in the housing (3) and which is spaced apart from a housing wall (15) of the housing (3) by a gap (17); and a solid insulator (7) which is arranged in the gap (17) and which is at least predominantly made of an electrically insulating insulator material.

The present invention discloses a ship flexible structure air duct, which is arranged below the vehicle deck of a roll-on / roll-off ship; it includes a transverse pipe section and a vertical pipe section; the transverse pipe section is fixedly arranged at the bottom of the vehicle deck; the upper end of the vertical pipe section is fixedly connected to the transverse pipe section; an air outlet is arranged below the transverse pipe section; the pipe wall of the transverse pipe section and the pipe wall of the vertical pipe section are both ribbed plates; the ribbed plate includes a plate-like body, the plate-like body is provided with a plurality of grooves, and the grooves are distributed along the plate-like body in a straight line; the grooves are parallel to each other; the vertical distance from the bottom of the groove to the plate-like body is less than 50mm; the groove of the ribbed plate of the transverse pipe section is perpendicular to the length direction of the transverse pipe section; the groove of the ribbed plate of the vertical pipe section is perpendicular to the length direction of the vertical pipe section; the opening of the groove of the ribbed plate of the vertical pipe section is all located inside the vertical pipe section. The present invention has a light structure, low design difficulty, no need to consider the problem of cracks easily generated at the edge of the air duct opening, and low manufacturing cost.