77results about How to "Small caliber" patented technology

The invention discloses a miniature lens with a large target surface and a large aperture. Comprising a first lens with negative focal power, a second lens with positive focal power, a third lens with positive focal power, a fourth lens with negative focal power, a fifth lens with positive focal power, a sixth lens with negative focal power and a seventh lens with positive focal power which are sequentially arranged from an object side to an image side, the large-target-surface large-aperture miniature lens comprises a second lens with positive focal power, a third lens with negative focal power, an eighth lens with negative focal power and a ninth lens with positive focal power, and further comprises an aperture diaphragm which is located between the second lens and the third lens or located between the third lens and the fourth lens. And by reasonably setting the proportional relation of key parameters, the total optical length is within 30mm under the condition of ensuring a large aperture of at least F1.05 and a large target surface of IH6.5 mm, and the effect of a miniature lens is obtained.

The invention provides an optical lens and electronic equipment with the same. According to the optical lens, a first lens has negative focal power, the first side face of the first lens is a convex face, and the second side face of the first lens is a concave face; the first side surface of the second lens is a concave surface, and the second side surface of the second lens is a convex surface; the third lens has positive focal power, the first side surface of the third lens is a convex surface, and the second side surface of the third lens is a convex surface; the fourth lens has positive focal power, and the second side surface of the fourth lens is a convex surface; the fifth lens has focal power; the first side surface of the sixth lens and the second side surface of the sixth lens have the same surface type; the seventh lens has focal power, and the second side face of the seventh lens is a convex face. The optical lens solves at least one of the problems that an optical lens in the prior art cannot give consideration to miniaturization and high resolution, is poor in pixel, is poor in imaging quality in a dark environment, and cannot be matched with a higher-pixel chip due to poor central angle resolution while meeting a large field angle.

The invention relates to a superfine-caliber bipolar plasma resectoscope, a combined suite and a using method of the combined suite. The invention discloses a superfine-caliber bipolar plasma resectoscope which comprises an inner sheath, an electronic flexible lens, a plasma cutter and an operator, a connector is arranged at one end of the inner sheath and used for being connected with an external water source to inject water into the inner sheath. The electronic flexible lens and the plasma cutter are arranged in the inner sheath in a penetrating mode. According to the ultra-thin-caliber bipolar plasma resectoscope combination suite, the whole design thought is changed, the brand-new prostate bipolar plasma resectoscope structure which can keep the original function of the resectoscope unchanged and reduce the caliber is provided, an outer sheath is innovatively removed, the fistulization assembly is designed in a matched mode, and the structure is simple, convenient and practical. Meanwhile, the inner sheath serves as the outermost layer of the whole novel resectoscope structure, the electronic soft lens is used for replacing a traditional hard eyepiece, the diameter of the resectoscope is further reduced, and finally the diameter of the resectoscope stretching into the urethra can reach Fr6-Fr18.

The utility model discloses a fixed connecting device for a connecting pipe. The fixed connecting device comprises a glass cement bottle and the connecting pipe, a connector is arranged at the front end of the glass cement bottle, gourd inserting holes are formed in the periphery of the front end of the connector, inserting rods are arranged on the periphery of the front end of the connector, limiting plates are arranged at the front ends of the inserting rods, a top plate is arranged on one side of the connecting pipe, and the top plate is installed on the upper sides of the inserting rods in a sliding mode. A spring is installed at the position, between the top plate and the connecting pipe, of the inserting rod, and the inserting rod is inserted into the hoist inserting hole. When the connecting pipe is installed, the limiting plate is inserted into the large-diameter end of the hoist inserting hole and then rotated, the inserting rod is rotated to the small-diameter end of the hoist inserting hole, at the moment, the connecting pipe and the connector are in butt joint, the spring is stressed to contract, the top plate is tightly attached to the connector together under the elastic force effect of the spring, and the connecting pipe is tightly connected with the connector. Therefore, the connection between the connecting pipe and the joint is tighter, and the connecting pipe is convenient to mount and dismount.

The utility model discloses a glass fiber wiredrawing coiling device which comprises a rotating disc installed on the front side of a glass fiber wiredrawing machine body, the rotating disc is rotationally connected to the front side of the glass fiber wiredrawing machine body, two yarn coiling column base plates are rotationally connected to the front side of the rotating disc, and a center column is welded to the front side of each yarn coiling column base plate. An air cylinder is fixedly installed on the front side of the center column, the output end of the air cylinder is fixedly connected with an installation block, and eight winding drum clamping plates are slidably connected to the front side of the yarn winding column base plate. The mounting block is driven by the air cylinder to slide back and forth, so that the winding drum clamping plate is driven to slide on the front side of the yarn winding column base plate, winding drums with different diameters are clamped, the winding efficiency of glass fiber filaments is improved, meanwhile, due to the arrangement of the recycling drawer, the falling glass fiber filaments can be recycled, and waste is avoided.

The invention provides an optical lens which comprises five lenses, and the five lenses sequentially comprise a first lens with positive focal power, a second lens with negative focal power, a third lens with positive focal power, a fourth lens with negative focal power, a fifth lens with positive focal power and a sixth lens with negative focal power from an object side to an imaging surface along an optical axis, the second lens has focal power; the third lens has positive focal power, and the image side surface of the third lens is a convex surface; the object side surface of the fourth lens is a concave surface, and the image side surface of the fourth lens is a concave surface; the object side surface of the fifth lens is a convex surface, and the image side surface of the fifth lens is a plane or a concave surface; wherein the maximum field angle FOV of the optical lens and the aperture value Fno of the optical lens meet the following conditions: 1.35 degree lt; an FOV / Fnot; 1.75 DEG C; the back focal length BFL of the optical lens and the total optical length TTL of the optical lens meet the following conditions: 0.4 lt; bFL / TTLlt; and 0.6. According to the optical lens provided by the invention, through specific surface shape matching and reasonable focal power distribution, the imaging quality of the optical lens can be improved, the aberration can be reduced, and the imaging quality of the optical lens can be improved.

The utility model discloses an infrared halogen heating lamp tube. The infrared halogen heating lamp tube comprises a mounting frame and a mounting plate, insertion rods are arranged on the periphery of the front end of the mounting plate, a top plate is arranged at the front end of the mounting plate, springs are mounted on the outer sides of the insertion rods and located between the mounting plate and the top plate, limiting plates are mounted on the insertion rods and located at the front end of the top plate, and hoist insertion holes are formed in the rear end of the mounting frame. A plurality of halogen heating lamp tubes are uniformly mounted on the inner side of the mounting frame, and a reflecting cover is mounted at the position, located on the inner side of the mounting frame, outside the halogen heating lamp tubes. The hoist inserting hole in the rear end of the mounting frame is aligned with the inserting rod, the limiting plate is inserted into the large-diameter end of the hoist inserting hole, the mounting frame is pulled downwards, so that the inserting rod is embedded into the small-diameter section of the hoist inserting hole, meanwhile, during use, the top plate is driven by the spring to move, and the mounting frame is clamped and fixed through the top plate; and the mounting rack can be mounted more stably.

The invention provides a filter screen and a bouncing drainer. The bouncing drainer comprises a filter screen main body, a filter screen base and a lifting piece, the filter screen body is tubular and comprises a water inlet end and a water outlet end. The filter screen base is installed through the water inlet end of the filter screen body, and an easily-disassembled structure is arranged between the filter screen base and the inner wall of the water outlet end. And one end of the lifting piece is assembled with the filter screen base. According to the filter screen provided by the invention, when the filter screen is cleaned, the lifting piece is used as a handle, the filter screen base is detached from the filter screen main body through the easy-to-detach structure, and garbage accumulated in the filter screen can be taken out while the filter screen base is taken out, so that the garbage in the filter screen can be easily cleaned even if the filter screen is relatively deep and small in caliber, and in addition, the filter screen is convenient to clean. The filter screen main body and the filter screen base which are detached are also easy to independently clean, so that the filter screen provided by the invention provides great convenience for cleaning.

The invention relates to the technical field of lighting lamps, in particular to a condensation LED lamp with a built-in reflection cup, which comprises a shell, a lamp holder, a reflection cup body, a swivel, a deflector rod, a driving mechanism, an adjusting mechanism and a reflector, the lamp holder is mounted in the shell, the reflection cup body is mounted at the front end of the lamp holder, the swivel is mounted at the front end of the lamp holder, and the deflector rod is mounted at the front end of the reflector. The driving mechanism is located on the rotating ring, the adjusting mechanism is installed between the reflection cup body and the rotating ring, the reflection plate is installed at the position of the reflection cup body, and the brightness range of light emitted by the condensation LED lamp is adjusted by changing gathering and divergence of LED lamp light at the position of the lamp holder. Meanwhile, the irradiation distance and the irradiation area of emitted light are adjusted by means of the rotating opening and closing principle, and therefore the controllability of a single condensation LED lamp on the light brightness and the irradiation distance during film and television shooting is improved.

The present invention belongs to the field of optical imaging technology, and provides a spliced ​​liquid crystal lens, an electronic device, and a method for driving a spliced ​​liquid crystal lens. The spliced ​​liquid crystal lens comprises: at least two rectangular light-through hole liquid crystal lens units and a driving circuit, each of the rectangular light-through hole liquid crystal lens units is arranged in an array and spliced ​​into a large-caliber liquid crystal lens, the rectangular light-through hole liquid crystal lens unit comprises: a first electrode, a second electrode, a third electrode, and a fourth electrode, and a rectangular light-through hole in the light-through direction surrounded by the first electrode, the second electrode, the third electrode, and the fourth electrode, and the driving circuit outputs a driving voltage to the first electrode, the second electrode, the third electrode, and the fourth electrode of each rectangular light-through hole liquid crystal lens unit to adjust the optical axes of each rectangular light-through hole liquid crystal lens unit to a mutually overlapping position. The spliced ​​liquid crystal lens of the present invention has the advantages of large caliber, thin thickness, and fast response speed.

The invention discloses an assembly type precast beam, and relates to the technical field of constructional engineering, the assembly type precast beam comprises a cross beam, and the cross beam comprises a plurality of beam bodies; a connecting column; the fixing columns are located between the opposite cross beams, and inserting grooves allowing the connecting columns to be inserted therein are formed in the fixing columns; a template block; the fixing columns are provided with limiting assemblies, and when the opposite formwork blocks abut against each other, the limiting assemblies limit the connecting columns to be disengaged from the inserting grooves. The connecting column is provided with an input pipe and an output pipe; an input groove is formed in the fixing column, and a grouting opening is formed in the fixing column. An output groove is formed in the fixed column, and a slurry outlet is formed in the fixed column; an upper communicating hole is formed in the beam body, and a lower communicating hole is formed in the beam body; a return pipe is arranged in the beam body far away from the fixed column; when the adjacent beam bodies abut against each other, the baffles are clamped into the partition grooves. An upper slurry covering groove is formed in the beam body, and a lower slurry covering groove is formed in the beam body. The assembly construction time of the precast beam can be shortened.

The invention relates to a small-caliber laser resection mirror and a using method thereof. The small-caliber laser resection mirror comprises an inner sheath, an endoscope, an optical fiber pipeline, an operator and a connector. The endoscope and the optical fiber pipeline are arranged in the inner sheath in a penetrating manner; the operator is arranged at one end of the inner sheath and used for controlling the optical fiber pipeline to stretch out and draw back in the inner sheath. The end, away from the operator, of the inner sheath is closed, and a backflow hole is formed in the side wall of the end, away from the operator, of the inner sheath. According to the small-caliber laser resection mirror, the whole design thought is changed, the brand-new laser resection mirror structure capable of keeping the original function of the resection mirror unchanged and reducing the caliber is provided, the outer sheath is innovatively removed, the optical fiber channel is combined with the water injection function, meanwhile, the inner sheath serves as the outermost layer of the whole new resection mirror structure, and therefore the whole resection mirror structure is more compact. The interior of the inner sheath is used for draining water, so that a stable water inlet and outlet system is constructed, and finally, the caliber of the laser resection mirror extending into the urethra can reach Fr18-Fr24.

The present invention discloses a redundant paper edge post-processing device for a sheet material coating system, which comprises a sheet material conveying platform, a paper edge cutting component, a paper edge recovery system and an intelligent control system in sequence; the intelligent control system controls the operation of the sheet material conveying platform, the paper edge cutting component and the paper edge recovery system. The device of the present invention uses compressed air as a power source, the caliber of the guide pipe is small, which is suitable for the size of the paper edge to be cut off, the distance between the negative pressure forming end and the target action end is close, the negative pressure is high, and the redundant edge material can be efficiently sucked up and discharged, which greatly improves the post-processing efficiency of the redundant paper edge.

The utility model relates to the technical field of discharging and sorting devices of color sorters, in particular to a discharging and sorting device for a color sorter, which comprises a discharging barrel, a rotating motor is fixedly mounted at the lower end of the discharging barrel, and a first sorting port, a second sorting port and a third sorting port are sequentially formed in the outer part of the discharging barrel from top to bottom; a first flow guide plate is connected to the exterior of the first sorting opening, a second flow guide plate is connected to the exterior of the second sorting opening, a third flow guide plate is connected to the exterior of the third sorting opening, an output shaft of the rotating motor penetrates through the interior of the discharging barrel, and a rotating rod is fixedly installed at one end of the output shaft of the rotating motor. Three fixing rings are fixedly installed on the outer portion of the rotating rod, and three L-shaped guide rods are fixedly installed on the outer portions of the fixing rings. According to the blanking and sorting device for the color sorter, disclosed by the utility model, materials can be conveniently classified and blanked.

The utility model relates to the technical field of engine connecting rod cracking, in particular to a connecting rod slag suction device. The device comprises a large-head positioning block, the large-head positioning block comprises a fixed base and a positioning column, and the positioning column is fixedly arranged on the top face of the fixed base; two opposite sides of the fixed base are provided with slag suction channels, and each slag suction channel is provided with a slag inlet and a slag outlet which are communicated with the wall surface of the fixed base; the pipeline connecting seat comprises a mounting plate and a connecting pipe fixedly connected to one side of the mounting plate; the mounting plate is fixedly connected to the fixed base in a matched mode, and a first receding hole communicated with the slag outlet is formed in the mounting plate in a penetrating mode. The connecting pipe is communicated with the first avoiding hole; and the suction device is connected with the connecting pipe through a pipeline and is used for sucking and sweeping the dregs. According to the device, the double slag suction channels are arranged corresponding to two connecting rod separation surfaces, so that the suction caliber is reduced, and the suction force at the connecting rod separation surfaces is enhanced.

The invention discloses an optical lens and electronic equipment comprising the same. The optical lens sequentially comprises a first lens, a second lens, a third lens and a fourth lens, the second lens has negative focal power; the third lens has positive focal power; a fourth lens; a fifth lens, wherein the fifth lens has positive focal power; a sixth lens, wherein the sixth lens has negative focal power; a seventh lens, wherein the seventh lens has positive focal power; the curvature radius R3 of the object side face of the second lens and the curvature radius R4 of the image side face of the second lens meet the condition that R3 / R4 is larger than or equal to 0.512 and smaller than or equal to 0.7735. The curvature radius R13 of the object side face of the seventh lens and the curvature radius R14 of the image side face of the seventh lens meet the condition that R13 / R14 is larger than or equal to 0.4207 and smaller than or equal to 5.7963. The radius of curvature R3 of the object side surface of the second lens and the radius of curvature R4 of the image side surface of the second lens satisfy 0.02 < = (R3-R4) / (R3 + R4) < = 0.4. The optical lens can realize at least one of the beneficial effects of high resolution, low cost, miniaturization, small aperture, small CRA, good temperature performance and the like.

A miniaturized three-reflection refrigeration type infrared optical system based on an LEO detector is characterized in that an image plane of a thermal imager is rotated by 90 degrees through a three-time reflection mode, so that the LEO type refrigeration infrared detector is rotated by 90 degrees to be installed, the problem that the transverse size is too large due to the structure of the detector is solved, and the miniaturized design of the whole thermal imager is realized. Based on the scheme, the optical system can reach 100% cold diaphragm efficiency, the system adopts a secondary imaging structure to reduce the aperture of the system, the optical path is reflected through the reflector to adapt to the installation requirement in a special space, and the diffractive optical element and the aspheric surface are used for athermalization and achromatism.

The utility model discloses a smoke removal type marking platform and a laser marking machine. The smoke removal type marking platform comprises a product jig, an air blowing piece and a smoke suction piece, the air blowing piece is provided with an air blowing opening which is in a long strip shape. The smoke suction part comprises a first flaring section, the first flaring section is arranged in a flaring mode in the direction of the product jig, and a smoke suction opening is formed in the side, facing the product jig, of the first flaring section and is in a long strip shape. The air blowing opening and the smoke suction opening are located in the two sides of the product jig, the air blowing opening blows smoke on the product jig towards the smoke suction opening, and the smoke is sucked and collected by the smoke suction opening. Smoke generated by marking on a product jig is blown to the smoke suction piece through the long-strip-shaped air blowing opening, and the smoke suction opening of the smoke suction piece comprehensively absorbs and collects the smoke so as to prevent the smoke from diffusing into air to cause pollution.

The application discloses a three-working-mode common-aperture different-frequency decoupling series-fed antenna and a radio frequency communication device, which has three independent input ports, each of which supports one working frequency band, and the three input ports are supported by three coaxial feed lines, the three coaxial feed lines include a first coaxial feed line, a second coaxial feed line and a third coaxial feed line, and the application comprises a multi-frequency series-fed radiator, which is provided with a multi-frequency current regulation structure and is used for realizing horizontal omnidirectional high-gain vertical polarization radiation mode of three working frequency bands; and a filtering structure, each working frequency band corresponds to one filtering structure, and the filtering structure is used for realizing independent working response of the three working frequency bands and high isolation between different-frequency ports. Through the design of the multi-frequency series-fed radiator and the filtering structure, the antenna realizes three-working-mode common-aperture working through a single antenna body and has the characteristics of high-gain horizontal omnidirectional radiation and different-frequency decoupling.

The utility model discloses an infrared wide-angle recognition optical system, and belongs to the field of optical lenses, the infrared wide-angle recognition optical system comprises a first lens (L1), a diaphragm (STO), a second lens (L2) and an optical filter (IR) which are sequentially arranged from an object plane to an image plane, the first lens (L1) is a plastic aspheric negative lens, the object side surface of the first lens (L1) is a concave surface, and the image side surface of the first lens (L1) is a concave surface; the second lens (L2) is a plastic aspheric positive lens, the object side surface of which is a convex surface and the image side surface of which is a convex surface. Each lens element satisfies the following relational expression: TTL / f is more than 4.13 and less than 4.416. The infrared wide-angle identification optical system is simple in structure, only comprises two lenses, is small in aperture, is large in field angle, has a good imaging effect, is low in production cost, and has mass production feasibility.

The application relates to a projection light machine and a projection device. The projection light machine comprises a light source, a light cone, a collimating lens, a focusing lens and a lens which are arranged in sequence along the propagation path of the outgoing light of the light source; the light cone is used for collecting the outgoing light of the light source and emitting the light rays from an outlet; the collimating lens is used for collimating the light rays; the focusing lens is used for converging the light rays towards the lens; and the lens is used for projecting the light rays; the projection light machine satisfies the condition formula: [|ra2|, |rb2|]max <= D / 2; ra2 is the distance between the incident point of the light ray directly emitted at the edge of the outlet on the lens and the optical axis; rb2 is the distance between the incident point of the light ray emitted from the light cone after reflection at the edge of the outlet on the lens and the optical axis; and D is the effective aperture of the lens. The above projection light machine has small light ray loss, high light ray utilization rate and is beneficial to improving the projection brightness.

The utility model relates to an ignition tube structure of a gas valve, which comprises a tube body with a first gas outlet channel penetrating axially, and is characterized in that the front end of the tube body is connected with a ventilation joint, the ventilation joint is provided with a plurality of second gas outlet channels penetrating axially, the second gas outlet channels are communicated with the first gas outlet channel, and the second gas outlet channels are communicated with the first gas outlet channel. An annular air entraining groove is formed in the peripheral wall of the ventilation connector and divides the second air outlet channel into a front part and a rear part, the front part and the rear part are the front second air outlet channel and the rear second air outlet channel respectively, and the rear second air outlet channel is directly communicated with the first air outlet channel. Part of fuel gas jetted from the second rear gas outlet channel is blocked by the front end face of the gas entraining groove and guided outwards in the radial direction, the part of fuel gas can be closer to the ignition needle, the fuel gas can be ignited more efficiently through the ignition needle, and ignition sensitivity is better. The multiple second air outlet channels are arranged, so that the caliber of each second air outlet channel is very small, and the second air outlet channels are separated by the air entraining grooves, so that foreign matters are better prevented from entering the second air outlet channels.

The invention discloses a pipeline assembly, a cleaning method, a cleaning device and cleaning equipment, the pipeline assembly is applied to the cleaning equipment, an air channel allowing airflow to pass through is formed in the pipeline assembly, the pipeline assembly comprises a flexible part, and the flexible part can be driven to deform in the direction pointing to the interior of the air channel or the direction away from the interior of the air channel so as to adjust the caliber of the air channel. Therefore, the airflow velocity is controlled. The pipeline assembly can drive the flexible part to deform in the working process to achieve caliber adjustment of the air duct, when large-particle garbage is cleaned, the flexible part can be driven to deform in the direction pointing to the interior of the air duct, the caliber of the air duct is reduced, the air speed is increased, and the problems that the large-particle garbage moves slowly and flows back are solved; when the cleaning device is applied to small-particle garbage cleaning, the flexible part can be driven to reset to the initial position, the caliber of the air duct is increased, energy consumption and noise are reduced, dual optimization of the performance and energy efficiency of the cleaning device is achieved, and user experience is improved.

The invention relates to the field of tire vulcanizing equipment, in particular to a tire vulcanizing machine center mechanism vortex device, which comprises a mold assembly, a tire vulcanizing machine center mechanism vortex device and a tire vulcanizing machine center mechanism vortex device, and is characterized in that the mold assembly is internally provided with a tire body; the inner top end of the lifting column is fixedly connected with a connecting shell; the rotating shell is rotationally connected to the inner wall of the connecting shell; the rotating disc is rotationally connected to the top end of the rotating shell; the bottom of the upper chuck is fixedly connected with a connecting rod, and the bottom of the connecting rod is rotationally connected to the top end of the rotating disc; by arranging the telescopic frame and the spraying head capable of rotatably adjusting the spraying angle, on one hand, the distance between the spraying head and the inner wall of the capsule is shortened, high-temperature gas sprayed by the spraying head can make rapid contact with the inner wall of the capsule, and the inner wall of the capsule can be rapidly heated; on the other hand, high-temperature gas can make contact with the side walls of the capsule at different positions, the temperature of the inner wall of the capsule is evenly distributed, and then the production quality of a tire body is improved.

The invention relates to the technical field of medical instruments, in particular to a ball pricking needle for uniform injection in tumors, which comprises a puncture part and a handheld part, the handheld part comprises an upper tube body, a lower tube body and a connecting arm connected between the upper tube body and the lower tube body; the puncture part comprises an outer tube, a core needle movably inserted into the outer tube and a puncture needle assembly connected between the outer tube and the core needle, the core needle is in threaded connection with a nut and sleeved with a sealing ring, the nut is rotationally connected between the upper tube body and the lower tube body and located on the inner side of the connecting arm, and the sealing ring is sleeved with the nut. The sealing ring is in sealing contact with the inner wall of the outer pipe, the upper end of the outer pipe is connected with the lower end of the lower pipe body, and the axis of the outer pipe coincides with the axis of the upper pipe body and the axis of the lower pipe body. One-time puncture and multi-point injection in a tumor can be achieved more easily, liquid medicine can be prevented from flowing out in the injection process, organs around the tumor are not prone to being damaged in the injection process, and use is safer.

The invention relates to a short-wave telecentric optical system and an imaging method thereof. The optical system is composed of a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens and a tenth lens which are sequentially arranged in the light incidence direction. The invention relates to a large relative aperture limited yoke object space telecentric system which is matched with a refrigeration type short wave infrared detector 640 * 512 at 15 microns. The large-relative-aperture system is high in energy concentration ratio, and the refrigeration type short wave detector works in a low-temperature environment, is high in signal-to-noise ratio and has higher detail resolution. The telecentric optical path system has wide application in the fields of precision measurement, optical metrology instruments and the like, especially in occasions requiring high-precision measurement.

The utility model relates to the technical field of antennas, in particular to a miniaturized oscillator and an antenna. The vibrator surface is arranged on the upper surface of the vibrator arm, the vibrator surface comprises two groups of radiating bodies which are arranged orthogonally, and a first arc-shaped hollow structure and two second arc-shaped hollow structures which are symmetrically arranged on two sides of the first arc-shaped hollow structure are arranged on the central axis of each radiating body; the loading section is arranged at the corner of the bottom of the oscillator arm and is vertical to the oscillator surface; according to the utility model, by reducing the aperture of the oscillator, the miniaturization of the oscillator is realized.

The application discloses a kind of big zoom ratio mid-wave infrared optical systems based on secondary mirror switching and thermal light diaphragm variation F number, switching of short focal length and long focal length channel is realized by the cut-in and cut-out of secondary mirror, optical system transmits large field of view of short, medium focal length, reflects small field of view of long focal length, share rear group optical system and detector assembly, compact structure, small volume.Simultaneously, the rear group with thermal light diaphragm is designed separately, realizes variable F number design, together with the cassegrain reflective front group, realizes super long focal length structure, so that mid-wave infrared has four focal length segments of super long focal length / long focal length / medium focal length / short focal length, to realize the integration of large aperture, small field of view, long focal length compact design and large field of view, short focal length, wherein the F number of short, medium, long focal length is 4, the F number of super long focal length is 7, the lens of the application is suitable for high-resolution 640x512, 15 microns mid-wave refrigeration type detector, with the characteristics of large aperture, long focal length, large field of view, four fields of view have good imaging quality.

The invention relates to the field of textile technology, and discloses a multi-directional adjustable blowing device for a textile machine, comprising a machine body, a motor is arranged above the machine body; a rotating column, the output end of the motor is drivingly connected to the rotating column; an angle adjustment mechanism, the rotating column is provided with the angle adjustment mechanism, and textile dust generated on the surface of the machine body can be removed in a multi-angle, multi-region and targeted manner through the angle adjustment mechanism; the cone head part of the air cylinder is aligned with the needle bed position, so that when the hair dryer blows air, air passes through the sleeve joint of the air duct and the air cylinder to avoid air leakage; through the setting of the cone cover, when the air cylinder uses the cone head part to blow air, the rotating cone cover can close the ventilation holes opened on the surface of the air cylinder to increase the pressure inside the air cylinder; when blowing air through the other end of the air cylinder, the vents on the surface of the air cylinder are opened by rotating the cone cover, so that the air flow can be concentrated and outflowed through the vents, so that the area affected by the blowing is wider, and dust can be removed over a large area.

The utility model discloses a spraying mechanism which comprises a cleaning pipe for providing cleaning water, the cleaning pipe is provided with a spraying structure extending into an oil discharge pipe, and the spraying structure is provided with spraying holes used for spraying the cleaning water on the inner wall of the oil discharge pipe to clean oil stains. The utility model further discloses an oil stain cleaning device and an integrated cooker. The oil drain pipe cleaning device has the advantages that the oil drain pipe can be effectively cleaned, and the blocking condition is avoided.