30results about How to "Reduce the difficulty of design and processing" patented technology

The invention provides a digital isothermal nucleic acid detecting device which comprises a micro-fluidic chip, a temperature control system and a pressure driving system. A microfluidic channel for microsphere forming and a reaction section for nucleic acid amplification are formed by the micro-fluidic chip through sequential laminating of a substrate layer, a channel layer arranged on the substrate layer and a cover plate layer arranged on the channel layer. The temperature control system comprises a lower press plate for applying pressure to the substrate from bottom to top and an upper press plate for applying pressure to the cover plate layer from top to bottom, and temperature sensing chips and temperature control heating elements for heating the reaction section are arranged in the upper press plate and the lower press plate. The pressure driving system is connected to the micro-fluidic chip and used for applying pressure to the channel layer in the micro-fluidic chip so that liquid to be detected can flow into the reaction section from the inflow end. According to the scheme, microsphere preparation and nucleic acid amplification and detection are integrated through the digital isothermal nucleic acid detecting device and the detection method, and the advantages of being high in sensitivity and the like are achieved.

The invention discloses a multichannel microdroplet detection chip for nucleic acid detection, which is successively provided with a cover plate layer, a channel layer and a substrate layer from top to bottom, wherein the channel layer is internally provided with a plurality of independent detecting units; each detecting unit comprises a dispersion phase hole, a sample adding hole, a reaction cavity and a reaction cavity hole; the dispersion phase holes and the sample adding holes are respectively converged through a first micro-channel and a second micro-channel, then are communicated to the reaction cavity through a third micro-channel; the other end, opposite to the third micro-channel, in the reaction cavity is communicated with the reaction cavity hole through a forth micro-channel. According to the multichannel microdroplet detection chip, a chip structure of a plurality of parallel detecting units is adopted to improve the reaction flux; a buckle is used for connecting different chips, the different chips can be detected in a combining manner, the flux is flexible and adjustable, and the detection efficiency is improved; the multichannel microdroplet detection chip is simple in structure, the application cost is greatly reduced compared with the present digital PCR instrument, and can be applied to the primary clinical detection.

The invention discloses a one-dimensional non-focused and focused ultrasonic double array scanning imaging device and method. The relative positions of a non-focused ultrasonic transducer linear array and an ultrasonic array are fixed and arranged front to back side by side; laser stimulates to-be-tested tissue to generate a photoacoustic signal, the non-focused ultrasonic transducer linear array collects the photoacoustic signal and ultrasonic imaging is carried out on the ultrasonic array at an interval of a laser pulse; the one-dimensional non-focused ultrasonic transducer linear array is scanned and is equivalent to a two-dimensional photoacoustic detection area array, so that the one-dimensional non-focused ultrasonic transducer linear array has a wider receiving angle than a focused linear array; meanwhile, the design and processing difficulty is greatly reduced in comparison with a two-dimensional surface, and the one-dimensional non-focused ultrasonic transducer linear array has great value in animal and photoacoustic tomographic imaging; the image contrast sources of two modes are different and information is complementary, a photoacoustic image and an ultrasonic image are registered and rebuilt to obtain a double-mode three-dimensional imaging result, and can be applied to small animal imaging or tumor disease examination and post-treatment evaluation of a breast cancer and the like.

A multiple-in-multiple-out pressure exchanger, the pressure exchanger is used for transferring pressure energy from a high-pressure first fluid to a low-pressure second fluid to provide a pressurized second fluid, the pressure exchanger is characterized by comprising: a body , a sleeve disposed within the body and a rotor rotating within the sleeve; the rotor having a plurality of passages extending generally axially through the rotor, the passages having a first opening at one end of the rotor , having a second opening at the other end of the rotor, the openings being spaced apart from each other along the length of the rotor; the sleeve having four or more internally distorted inlet passages and four or more a discharge passage, the sleeve passage is arranged such that when the end opening of the first passage of the rotor is aligned with the inlet passage on one of the sleeves, the other end opening of the passage is also aligned with the discharge passage on the sleeve allow.

The invention discloses a circularly polarized waveguide slot antenna which comprises a rectangular waveguide, a spherical resonant cavity is arranged at the top end of the rectangular waveguide in a centering mode, and the spherical resonant cavity and the rectangular waveguide are connected through a coupling structure; the top end of the spherical resonant cavity is provided with a first gap and a second gap, the first gap and the second gap vertically intersect in a cross shape, and the intersection point is located in the center of the top of the spherical resonant cavity; the first coaxial feed connector and the second coaxial feed connector are both arranged on the rectangular waveguide and adopt same-phase excitation; the rectangular waveguide is used for exciting two microwave modes with orthogonal phases; an electromagnetic signal forms two microwave modes with orthogonal phases after passing through the rectangular waveguide, and the two microwave modes with orthogonal phases cut surface current in a gap of the spherical resonant cavity after passing through the coupling structure, so that electromagnetic waves radiate circularly polarized waves outwards, and the circularly polarized purity is high; and the spherical resonant cavity is large in volume-to-surface area ratio and high in quality factor, and the efficiency of the antenna in the working bandwidth is high.

The invention discloses an X-ray parallel shielding device which comprises an X-ray shielding room. A conveyor used for conveying items to be detected is arranged in the X-ray shielding room, a discharge outlet and a feed inlet are formed in the two ends of the conveyor in the X-ray shielding room, an X-ray source is arranged below the conveyor, an X-ray detector is arranged above the conveyor and corresponds to the X-ray source, the conveyor is a parallel type conveyor, a plurality of adjustable ray refraction baffle sets are arranged above and below the conveyor in the X-ray shielding room in parallel, and each adjustable ray refraction baffle set is formed by two lead plates arranged by a certain included angle. The X-ray parallel shielding device is simple and effective in structure, low in designing and processing difficulty, low in structural cost, more stable than devices of conventional structures on the market, high in efficiency and capable of being generally applied to online automatic detection of factories.

The invention discloses a long rubber barrel packer for oil field water exclusion production. The long rubber barrel packer at least comprises a central pipe, wherein the upper end of the central pipe is connected with an upper connector and the lower end of the central pipe is connected with a lower connector; a connecting sleeve, a connector, a spring seat sleeve, a middle rubber barrel assembly and a sliding sleeve sleeves the central pipe in sequence from top to bottom; the upper end of the connecting sleeve is connected with the upper connector and the lower end of the connecting sleeve is connected with the upper end of the connector; the inner circular surface of the lower end of the connector is connected with a piston switch; the outer circular surface of the lower end of the connector is connected with the upper end of the spring seat sleeve; the lower end of the spring seat sleeve is connected with the upper end of the middle rubber barrel assembly; the lower end of the middle rubber barrel assembly is connected with a sliding sleeve; the lower connector is internally provided with a positioning step; the positioning step is fixedly provided with a ball seat through an unpacking shear pin; the packer is combined with an oil field rod type oil pump oil production technology, and seat packing and production can be realized through a one-trip string; meanwhile, unpacking fishing can be carried out by lifting a pipe column and an expansion type packer is applied to the water exclusion production for the first time; the long rubber barrel packer has a longer effective packing surface and the packing success rate is improved.

The invention relates to a vehicle-carried information projection system. The vehicle-carried information projection system comprises an automobile state micro display system, a micro projection system, a scatter plate and a semi-transmitting semi-reflecting lens, wherein the micro projection system images information displayed on the automobile state micro display system onto the scatter plate, the semi-transmitting semi-reflecting lens forms a virtual image of the image on the scatter plate to an infinite long distance or a finite long distance, and the virtual image seen by human eyes is at a position having a certain distance to an automobile windscreen. The structure of the vehicle-carried information projection system can be very small, the cost is low, the flexibility is greater and the feasibility is stronger; no windscreen compensating mirror component is needed and the design and manufacturing difficulty is small; by using the scatter plate as a relay surface, the trance and dizziness caused to the human eyes are weakened, the intensity of light emitted by the automobile state micro display system is very high, after relay imaging through the scatter plate, the light emitted by the automobile state micro display system does not directly enter the human eyes and thus the displayed image seen by the human eyes is softer.

The invention discloses air vortex tube refrigeration shaft rotation environment test equipment which is simple and convenient to rotate, is not easy to be interfered and can meet different rotation requirements. The test equipment comprises a Z-axis rotating mechanism, an X-axis rotating mechanism, a test box body, a refrigeration mechanism and a control device, wherein the control device controls the Z-axis rotating mechanism, the X-axis rotating mechanism, the test box body and the refrigeration mechanism to operate. According to the invention, the X-axis rotating mechanism is arranged on the Z-axis rotating mechanism to drive the test box body to rotate, so that the requirement of three-axis rotation is met, and the rotation is not interfered; the mechanical structure of the test box body is simplified, so that the obstruction of the mechanical structure of the test box body on the pipeline arrangement is reduced, the operation reliability and the accuracy of each index detection in the test process are improved on the premise of ensuring that the size of the test area of the rotary test box is unchanged, the test technical condition is met, the convenience in maintenance and operation is improved, the applicability is wide, the air vortex tube refrigeration shaft rotation environment test equipment can be independently used as a one-shaft or two-shaft rotary test equipmentsystem, and different test requirements of users are met.

The invention discloses a propellant combustion smoke concentration testing device. The device is mainly composed of a closed combustion chamber, a pressure adjusting module, a test chamber, light sources, light intensity detection sensors, an ignition power source, a high-pressure gas source and a data acquisition and processing module. The pressure adjusting module adjusts the pressure in the closed combustion chamber and controls connection and disconnection of the closed combustion chamber and the test chamber. Symmetrical detection windows are arranged on the test cavity, and the light sources and the light intensity detection sensors are arranged on the two sides of the detection windows of the test cavity respectively; light intensity change when smoke passes through the test cavity is detected. Compared with a traditional smoke concentration testing device, the combustion chamber is separated from the test cavity, so that on the one hand, the structure of the closed combustionchamber is simple, and the difficulty of design and processing of the device is reduced; on the other hand, the requirement on the pressure resistance strength of the test cavity is low by dynamically testing smoke, and meanwhile, the test cavity is easy to clean and maintain. The device can be used for testing the combustion smoke concentration of propellants in a small dosage.

The invention belongs to a petroleum seismic prospecting device, that is, a plunger type controllable seismic-source vibrator. The device comprises a gland bush1, a copper sheathing2, a top-chamber oil duct3, a top oil chamber4, a plunger5, a down oil chamber6, a down-chamber oil duct7, and a rammer8, wherein the rammer8 is fixed by the gland bush1, the rammer8 comprises the top oil chamber4 and the down oil chamber6 covered by the copper sheathing2, the top-chamber oil duct3 communicates with the top oil chamber4, the down oil chamber6 communicates with down-chamber oil duct7, and the plunger5 is arranged in the dead hole of rammer8. The oil duct capacity of the vibrator is reduced for improving vibratility of vibrator and the stress force of gland bush does not increase when the output force of vibrator is increased for reducing processing difficulty and improving manufacturability.

A dual-piston vibrator vibrator related to petroleum seismic exploration equipment, comprising a gland 1, a wear-resistant sleeve 2, a piston 3, an upper oil chamber 4, an upper oil passage 5, a lower oil passage 6, a hammer body 8, a lower Oil chamber 7, oil drain port 9, piston 3 is installed in the upper and lower blind holes of hammer body 8 respectively, upper oil passage 5 and lower oil passage 6 are opened on hammer body 8, upper oil chamber 4 is connected with oil The channel 5 is connected, the lower oil chamber 7 is connected with the lower oil channel 6, and the hammer body 8 is fixed by the gland 1, which can effectively improve the pressure on the piston gland, reduce the difficulty of design, improve the processability, and reduce the volume of the working oil channel , so as to achieve a dual-piston vibrator vibrator that improves the vibration performance of the vibrator.

The invention relates to a power assembly system, comprising an engine input shaft connected with the engine by an engine clutch and fixably provided with a high speed gearwheel; a power output shaft connected to a drive axle by the drive shaft coupling, one end of which is provided with a drive shaft coupling, wherein a low speed gearwheel and a middle position gearwheel are held on the power output shaft; a first motor input shaft fixed with a high speed pinion gear, one end of which is provided with a first motor shaft connector, wherein the high speed pinion gear and the high speed gearwheel are engaged frequently; a second motor input shaft fastened with a low speed pinion gear and a middle position pinion gear, one end of which is provided with a second motor shaft connector, wherein the low speed pinion gear is engaged with the low speed gearwheel frequently and a first gear shift mechanism and a second gear shift mechanism arranged on the power output shaft. The invention is especially suitable for large-sized complicated operating condition hybrid power vehicles.

The invention relates to the technical field of wind power generation, in particular to a tower drum assembly and a wind generating set. The tower drum assembly comprises a tower drum and a tuned mass damper, and the tuned mass damper comprises a suspension device, a mass block and a damper. The suspension device is fixed outside the tower drum; the suspension device is flexibly connected with the mass block and is used for suspending the mass block; and the two ends of the damper are fixedly connected with the mass block and the tower drum respectively. The wind generating set comprises the tower drum assembly. According to the tower drum assembly and the wind generating set, vortex-induced vibration is not prone to being generated, the design and machining difficulty is low, and the psychological stress of operation and maintenance personnel entering the tower drum can be reduced.

The invention discloses an X-ray parallel shielding device, which comprises an X-ray shielding room. A conveyor for transporting objects to be detected is arranged in the X-ray shielding room. The feed port and the feed port, the X-ray source is provided below the conveyor, and the X-ray detector is provided above the corresponding conveyor. The conveyor is a parallel conveyor, and the X-ray shielding room is located on the side of the conveyor There are several sets of adjustable ray refraction baffles in parallel above and below, and each set of adjustable ray refraction baffles is composed of two lead plates arranged at a certain angle. This structure is simple and effective, and the design and processing difficulty is low. Low, more stable and efficient than conventional structures on the market, routinely applied to factory online automatic detection.

The invention discloses an adjustable tension and compression rigidity simulator and a mechanical drive link; the adjustable tension and compression rigidity simulator comprises the following elements: two elastic plates; a connecting assembly enabling the two elastic plates to be parallelly arranged and fixedly connected; lug assemblies used for being respectively arranged between the two elastic plates. The connecting assembly is connected in the mechanical drive link and used for transmitting the force in the mechanical drive link to the two elastic plates; the two elastic plates receive the force, so a connecting portion between the elastic plates and the connecting assembly and connecting portions between the elastic plates and the two lug assemblies elastically deform; elastic deformation amount of the elastic plates receiving the force can be changed through adjusting the positions of the two lug assemblies arranged on the two elastic plates. By employing the structure, other parts in the mechanical drive link can be designed in rigidity so as to reduce design and processing difficulty of other parts in the mechanical drive link, and design is simple.

The invention discloses a multi-core angle connector for a motor and a motor controller. The multi-core angle connector comprises a shell, an insulation mounting plate, soft copper bars, terminal blocks, insulators, shielding rings, shielding pressure sleeves, a cover plate, a seal gasket and a seal ring. When cables are connected into the connector, the cables are stripped to exposure shielding layers and then connected with the terminal blocks, and the shielding rings are connected to the cables through the shielding pressure sleeves by pressing and clamped on the shell; the insulators sleeve the terminal blocks and pressed into the shell by interference fit; the insulation mounting plate is detachably fixed to the shell; the soft copper bars and the terminal blocks are detachably fixed to the insulation mounting plate; the seal gasket is arranged between the shell and the cover plate; the seal ring is arranged on a mounting surface of the shell. The multi-core angle connector has advantages that product integration is realized, and secondary shielding processing is reduced; a power part is locally bendable, the defect that the copper bars are not coplanar due to tolerance accumulation is improved, effective contact of joint faces of the copper bars is guaranteed, and accordingly high reliability in connection is realized.

The invention provides an image identification and pre-warning device for a power transmission line. The device comprises a left box assembly, a right box assembly and a screw transmission hinge mechanism. The left box assembly and the right box assembly are arranged oppositely to form a screw transmission hinge mechanism mounting cavity. The screw transmission hinge mechanism is arranged at the inner side of the screw transmission hinge mechanism mounting cavity. One side end of the screw transmission hinge mechanism is connected with the left box assembly, and the other side end is connected with the right box assembly. The screw transmission hinge mechanism drives the left box assembly and the right box assembly to open or close to form a box. According to the device, a mounting tool body matches the screw transmission hinge mechanism; when the left box assembly and the right box assembly are opened and closed, the action is concise and the mounting is convenient; and when the device is mounted, a worker does not need to directly contact the power transmission line, namely an operator does not need to climb up the power transmission line for working, and the mounting is more convenient and safer.

The purpose of the present invention is to provide a valve device with the functions of high-pressure low-speed oil injection and high-pressure high-speed oil discharge. It is connected to the end of the shaft of the micro-leakage rotary oil cylinder. On the housing, the one-way valve body is connected to the end of the connecting shaft. The left end surface of the one-way valve body is formed with a rotating seal moving ring, and the piston rod passes through the centers of the rotating sealing static ring and the moving ring. At low speed, the actuator solenoid valve is energized, the piston moves, the ejector rod pushes the one-way valve core, and at the same time the oil injection solenoid valve is energized, the high-pressure working oil passes through the radial oil inlet hole of the adapter plate, the radial gap between the rotary seal and the piston rod Flows into the check valve and fills the rotary cylinder with oil. At high speed, the actuator solenoid valve is energized, the ejector rod pushes the one-way valve core, and at the same time, the oil injection solenoid valve is powered off, and the oil inlet hole is connected with the solenoid valve oil return channel, which can realize the oil discharge of the rotary cylinder at high speed. During high-pressure low-speed oil injection and high-pressure high-speed oil discharge, the PV value of the rotary seal is small, and the life of the rotary seal is long.

The invention discloses a glue dipping head for conductive glue coating. The glue dipping head comprises a connecting shaft, a rotating body, a glue dipping head base, glue dipping salient points and glue dipping shrinkage salient points, wherein the rotating body is fixedly arranged on the connecting shaft; the glue dipping head base is arranged at the bottom of the connecting shaft; the glue dipping salient points and the glue dipping shrinkage salient points are arranged on the glue dipping head base in matrix arrangement; and the glue dipping shrinkage salient points are positioned on the outermost side of the glue dipping head base. The glue dipping head has the advantages that the space layout of the glue dipping salient points is optimized, and the size and structure of the glue dipping salient points of a bonding pad of a chip are optimally designed, so that the ideal condition that effective overflow of the conductive glue on non-bonding pad parts of the chip and proper overflow of the conductive glue on the bonding pad parts of the chip is achieved; and according to the glue dipping head, the production efficiency and the quality of the conductive glue coating are improved, the viscosity change of the conductive glue and the height of the conductive glue in a glue dipping disc are less affected, and the glue dipping head is beneficial to large-scale production.

The invention provides a movable adjusting drive unit for optical elements, comprising: a main body; a first flexible soleplate and a second flexible soleplate which are respectively arranged at the two ends of the main body; a first flexible soleplate fixed block and a second flexible soleplate fixed block which are fixed on the sides of the two ends of the main body to limit the first flexible soleplate and the second flexible soleplate to move up and down; a first adjusting screw and a second screw which are respectively connected with the first and second flexible soleplate through the screwed holes on the main body; a driving mechanism which is fixed between the first flexible soleplate and the second flexible soleplate; and a deformation block which is connected with one end of the main body. The invention has the advantages of low hysteresis quality, strong load capacity, good repeatability and stability, high precision (which can reach to a nanometer level ), convenient maintenance and the like, and has the advantages of large distance of travel, simple structure, low processing difficulty and the like.

The invention provides a dual-beam large-spot collimated irradiation implementation method used in a special environment. A collimating mirror and a rotating platform are arranged in the special environment, and the collimating mirror is loaded on the rotating platform; and two laser beams are coupled to the surface of the collimating mirror in different positions and different directions through a telescope-type collimation system secondary mirror or a plurality of planar reflecting mirrors and the telescope-type collimation system secondary mirror, emitted out in a collimated manner as large-size spots through the collimating mirror and sequentially irradiated on a fixed target. The special environment is a closed space different from the atmospheric environment, such as a sealed tank body, an airtight space, a vacuum tight space and the like. The two laser beams penetrate different sealed optical windows of the special environment, and then are coupled to the surface of the collimating mirror. The method provided by the invention is simple, feasible, convenient and fast, the manufacturing cost is low and the technical effect is good.

The invention belongs to the field of radiation imaging detection equipment and in particular relates to a scanning device for an X-ray back scattering imaging system. The scanning device is arrangedon a back scattering imaging equipment rack and comprises a fixed shell and a rotary shell, which are coaxial and hollow, and ends of inner sides of the fixed shell and the rotary shell are arranged oppositely; one end of the outer side of the fixed shell is fixedly arranged on the back scattering imaging equipment rack; one end of the outer side of the rotary shell is arranged on the back scattering imaging equipment rack through a bearing; a space capable of containing an X-ray tube provided with a collimator is commonly formed in the ends, which are arranged oppositely, of the inner sides of the fixed shell and the rotary shell; the rotary shell is provided with an emission small hole; a ray beam, which is generated by rotating the X-ray tube around the axis along the rotary shell, canbe emitted through the emission small hole via the collimator to form periodic point scanning. The mutual separation manner of the fixed shell and the rotary shell is convenient for installation and operation; the processing difficulty is reduced, the volume weight of a rotary part is reduced, vibration generated by rotation is reduced and the stability and reliability of equipment are improved.

The invention discloses a glue dipping head for conductive glue coating. The glue dipping head comprises a connecting shaft, a rotating body, a glue dipping head base, glue dipping salient points and glue dipping shrinkage salient points, wherein the rotating body is fixedly arranged on the connecting shaft; the glue dipping head base is arranged at the bottom of the connecting shaft; the glue dipping salient points and the glue dipping shrinkage salient points are arranged on the glue dipping head base in matrix arrangement; and the glue dipping shrinkage salient points are positioned on the outermost side of the glue dipping head base. The glue dipping head has the advantages that the space layout of the glue dipping salient points is optimized, and the size and structure of the glue dipping salient points of a bonding pad of a chip are optimally designed, so that the ideal condition that effective overflow of the conductive glue on non-bonding pad parts of the chip and proper overflow of the conductive glue on the bonding pad parts of the chip is achieved; and according to the glue dipping head, the production efficiency and the quality of the conductive glue coating are improved, the viscosity change of the conductive glue and the height of the conductive glue in a glue dipping disc are less affected, and the glue dipping head is beneficial to large-scale production.

The invention provides a movable adjusting drive unit for optical elements, comprising: a main body; a first flexible soleplate and a second flexible soleplate which are respectively arranged at the two ends of the main body; a first flexible soleplate fixed block and a second flexible soleplate fixed block which are fixed on the sides of the two ends of the main body to limit the first flexible soleplate and the second flexible soleplate to move up and down; a first adjusting screw and a second screw which are respectively connected with the first and second flexible soleplate through the screwed holes on the main body; a driving mechanism which is fixed between the first flexible soleplate and the second flexible soleplate; and a deformation block which is connected with one end of the main body. The invention has the advantages of low hysteresis quality, strong load capacity, good repeatability and stability, high precision (which can reach to a nanometer level ), convenient maintenance and the like, and has the advantages of large distance of travel, simple structure, low processing difficulty and the like.

The invention discloses a one-dimensional non-focused and focused ultrasonic double array scanning imaging device and method. The relative positions of a non-focused ultrasonic transducer linear array and an ultrasonic array are fixed and arranged front to back side by side; laser stimulates to-be-tested tissue to generate a photoacoustic signal, the non-focused ultrasonic transducer linear array collects the photoacoustic signal and ultrasonic imaging is carried out on the ultrasonic array at an interval of a laser pulse; the one-dimensional non-focused ultrasonic transducer linear array is scanned and is equivalent to a two-dimensional photoacoustic detection area array, so that the one-dimensional non-focused ultrasonic transducer linear array has a wider receiving angle than a focused linear array; meanwhile, the design and processing difficulty is greatly reduced in comparison with a two-dimensional surface, and the one-dimensional non-focused ultrasonic transducer linear array has great value in animal and photoacoustic tomographic imaging; the image contrast sources of two modes are different and information is complementary, a photoacoustic image and an ultrasonic image are registered and rebuilt to obtain a double-mode three-dimensional imaging result, and can be applied to small animal imaging or tumor disease examination and post-treatment evaluation of a breast cancer and the like.

The invention belongs to the field of flutter model design and particularly relates to a buckle type model skin. The buckle type model skin comprises a model skeleton (1) and a variable skin (3). Themodel skeleton (1) is provided with buckle grooves (2). The inner walls of the buckle grooves (2) are provided with notches. The edge of the variable skin (3) is provided with buckles (4). The cross section of each buckle (4) is in a U shape. The buckles (4) are clamped to the corresponding buckle grooves (2) through elastic restoring force of the buckles (4) when mounted into the buckle grooves (2). The notches on the inner walls of the buckle grooves (2) can prevent the buckles (4) from coming out. The buckle type model skin provided by the invention has the advantages of being high in aerodynamic shape simulation precision, small in design and processing difficulty, short in cycle, convenient to disassemble and assemble, capable of realizing local or integral variable stiffness design and the like.

The invention provides a dual-beam large-spot collimated irradiation implementation method used in a special environment. A collimating mirror and a rotating platform are arranged in the special environment, and the collimating mirror is loaded on the rotating platform; and two laser beams are coupled to the surface of the collimating mirror in different positions and different directions through a telescope-type collimation system secondary mirror or a plurality of planar reflecting mirrors and the telescope-type collimation system secondary mirror, emitted out in a collimated manner as large-size spots through the collimating mirror and sequentially irradiated on a fixed target. The special environment is a closed space different from the atmospheric environment, such as a sealed tank body, an airtight space, a vacuum tight space and the like. The two laser beams penetrate different sealed optical windows of the special environment, and then are coupled to the surface of the collimating mirror. The method provided by the invention is simple, feasible, convenient and fast, the manufacturing cost is low and the technical effect is good.