32results about How to "Avoid scratching each other" patented technology

The invention relates to an air traffic control system and an operation method thereof based on virtual pathfinders. First, permitted fairways, courses, taxiways, as well as gate positions for the scheduled flights going in or out of the control area and the air data of the flights on the fairways are inputted into a three-dimensional electronic map; a controller selects corresponding flight courses for the flights on the electronic map according to the flight schedule, forming a prearranged flight plan. The system builds up a virtual pathfinder for each flight on a computer, reckons the travel position of the virtual pathfinder at each second and shows the actual position of the plane through the current control system. The system makes constant comparison and once the actual position of the plane does not accord with the virtual position and the offset goes beyond the value of a set offset alarm, the system gives an alarm. The invention can improve the utilization rate of the courses, reduce waiting time of the plane in the air and greatly reduce the work loads of the controller and the pilot.

The invention discloses a specification-divided deepwater live fish automatic catching device, which comprises a fish collecting box (1) and a fish luring bait feeding mechanism, and a fish inlet (5) and a fish outlet (6) are formed in the two opposite side surfaces of the fish collecting box (1) respectively; the device is characterized by further comprising a control system, a sealable fish inlet grating assembly is arranged in the fish inlet (5), and a sealable fish outlet grating assembly is arranged in the fish outlet (6); and the control system controls opening and closing of the fish inlet grating assembly and controls opening and closing of the fish outlet grating assembly. The fish automatic catching device can achieve the standard fish catching effect of catching large fishes and reserving small fishes, and the defect that large fishes and small fishes are caught together to cause fry waste is overcome.

The invention discloses a one-way clutch of an automobile engine. The one-way clutch comprises a driving star wheel, a driving gear and a shifting fork mechanism, wherein the driving star wheel comprises a star wheel mounting part and a star wheel connection part; the shifting fork mechanism comprises a spring cover, a resetting spring, a shifting fork stop sheet, a clamping spring and a clamping spring limiting seat which sleeve the star wheel connection part respectively; an annular outer flanging is arranged at one end of the spring cover, and an annular inner flanging is arranged at the other end of the spring cover; one end of the resetting spring is propped against the inner wall of the annular inner flanging, and the other end of the resetting spring is propped against the star wheel connection part; the shifting fork stop sheet is propped against the outer wall of the annular inner flanging of the spring cover; a shifting fork annular slot is formed between the annular outer flanging of the spring cover and the shifting fork stop sheet; a limiting ring slot is formed in one end, which is far away from the star wheel mounting part, of the star wheel connection part; the clamping spring is arranged in the limiting ring slot through the clamping spring limiting seat and is propped against one end, which is back on to the spring cover, of the shifting fork stop sheet. The one-way clutch is reasonable in structure and conveniently and precisely mounted; the phenomenon that the shifting fork mechanism is separated from a one-way device can be well avoided; the usability is greatly improved, and the service life is prolonged favorably.

The invention discloses an antiskid transport box. The antiskid transport box comprises a plurality of box bodies (1); supporting legs (3) are fixedly arranged at the four corners of a bottom plate (2) of each box body (1); fixing blocks (4) are arranged at the bottoms of the four supporting legs (3) of each box body; the bottom of each fixing block (4) is provided with a positioning groove (5); positioning tables (6) are fixedly arranged at the four corners of the top of each box body (1); and the four positioning tables (6) of the box body (1) on the lower layer are matched with the positioning grooves (5) of the box body (1) on the upper layer. The antiskid transport box has the beneficial effects that the structure is compact, the stability is high, transportation of a forklift is facilitated, and scratches among parts are prevented.

The invention discloses a module structure of a large semi-transparent display device, the module structure is applied to a shielding door of a subway, the module structure comprises a fixed frame, a transparent panel, a display screen and a backlight assembly, the fixed frame comprises a first square frame, a second square frame, a third square frame and a fourth square frame which are stacked and assembled from front to back, the display screen is arranged in the first square frame, and the second square frame is arranged in the fourth square frame. The backlight assembly is arranged in a backlight clamping groove between the second square frame and the third square frame, the corresponding components are arranged in a first wire groove in the back face, the backlight assembly is arranged in a backlight clamping groove between the second square frame and the third square frame, the corresponding components are arranged in a second wire groove in the back face of the second square frame, and the fourth square frame shields back face structures of the first square frame, the second square frame and the third square frame. The modularized frame structure is arranged, so that corresponding components with different functions can be orderly and stably arranged in different frame positions, the structure is compact and exquisite, wiring is reasonable and neat, and meanwhile, only square frames of corresponding parts need to be disassembled during maintenance.

The invention relates to a steam safety valve, and belongs to the field of thermal power and nuclear power valves. The steam safety valve comprises a valve body, a valve seat, a valve clack, a valve clack sleeve, a guide sleeve, a belleville spring, a lower spring seat, a spring, a valve rod, an upper spring seat and a spring cover and has a backpressure cavity, balance groove, steam discharging groove and strip-shaped groove structure. The valve body is in threaded connection with the valve seat, the valve clack and the valve clack sleeve are fixed through a locking nut, and a valve clack sleeve assembly is formed and arranged in the guide sleeve and vertically moves. A locating plate is arranged in a groove of the valve body, and compressed by the spring cover. A pin shaft is arranged on the valve rod and embedded into a strip-shaped groove of the valve clack sleeve assembly. Compared with the prior art, according to the technical scheme, the steam safety valve has the beneficial effects that the locating plate is arranged, and a valve clack limiting and valve rod guide structure is simplified; a universal check block and a belleville spring buffer device are arranged on the valve rod, and the influence generated by great impacts when the valve returns to the seat is reduced; and the pin shaft is arranged on the valve rod, the valve clack can be prevented from rotating, and the performance of the valve is guaranteed.

The invention discloses a light bar bending resistance testing machine. The light bar bending resistance testing machine comprises a general assembly bottom plate, a motor base, an adjusting end bottom plate and an action block, wherein a linear guide rail is arranged on the surface of the general assembly bottom plate, a lead screw is arranged at the upper portion of the linear guide rail, a protective baffle is arranged at the side surface of the general assembly bottom plate, a fixed seat is arranged on the surface of a fixed seat support table, butterfly nuts are connected at the internalportions of fixed screw holes, a motor is arranged on one side of the motor base, and one end of the lead screw penetrates through a fixed end support piece and then is connected with the motor; the surface of an adjusting end vertical plate is provided with a guide rail sliding block, the outer side of a poke rod is connected with a roller, and the surface of the roller is provided with guide slots. The light bar bending resistance testing machine is provided with the motor, the lead screw and the action block, and the motor and the thread transmission mode allow the roller to move at a constant speed so as to solve the stability of dragging for a long time, avoid the instability of manual operation and the fatigability of long-time operation and improve the efficiency of test work.

The invention relates to a movable distribution frame for tooth-shaped paper feeding. The movable distribution frame comprises a main body block, a plurality of first through holes are formed in the lower portion of the main body block, a plurality of second through holes are formed in the upper portion of the main body block, and the first through holes and the second through holes are all longitudinally formed and distributed in a staggered mode and are all inverted-T-shaped holes; the left end and the right end of the main body block are each connected with a connecting rod in a hinged mode, a base plate is arranged under the main body block, a slide way is arranged on the base plate, the left side and the right side of the slide way are each slidably provided with a quarter circular positioning block, and the two positioning blocks are bilaterally symmetrical about the median plane of the base plate. According to the movable distribution frame, tooth-shaped paper is completely separated, grooves are reserved for glue liquor applied to the tooth-shaped paper, and therefore the condition that the glue liquor is scraped off cannot be generated at all; meanwhile, due to the fact that the first through holes and the second through holes are distributed in the staggered mode, every two pieces of tooth-shaped paper are not located on the same horizontal, the condition that the sides of the tooth-shaped paper pieces mutually scrapes is avoided, and therefore the tooth-shaped paper cannot be turned over due to scraping.

The invention relates to an adjustable layering rack for tooth-shaped paper. The adjustable layering rack comprises a rectangular frame; vertical strip holes are formed in the left side surface and the right side surface of the rectangular frame correspondingly; two transverse bars are arranged in the strip holes and located on the upper sides and the lower sides of both the strip holes correspondingly; and the left ends and the right ends of both the transverse bars penetrate through the strip holes in the left side and the right side. Tooth-shaped paper is completely separated, meanwhile, every two adjacent tooth-shaped paper are not fed in the same horizontal plane, so that the situation that the sides of the tooth-shaped paper are mutually scraped is avoided, and accordingly, the tooth-shaped paper are prevented from being scraped and turned over. By rotating different screws, the heights of the transverse bars can be flexibly adjusted so as to adapt to the different using conditions.

The invention discloses an automatically-feeding shielding case die. An automatic feeding mechanism is arranged in the die and comprises a sliding block, bearings, a movable block, an ejector pin, a spring and a pull rod; a pull rod groove is formed in the middle part of the sliding block; the pull rod is arranged in the pull rod groove; the bearings are arranged at the two sides of the pull rod groove; a groove is formed in the front end of the sliding block; the movable block is arranged in the groove; an ejector pin hole is formed in the movable block; the ejector pin is arranged in the ejector pin hole; the spring is arranged on the lower part of the ejector pin; the upper end of the pull rod is fixed to an upper base plate of the die; the sliding block is slidably installed on a female die plate of the die; a material belt is installed on the automatic feeding mechanism; and equidistant material belt holes are correspondingly formed in the two side edges of the material belt. Automatic loading for the shielding cases can be realized, so that the machining efficiency is increased, and scratching between the shielding cases during loading and conveying is avoided; and meanwhilethe special material belt is arranged to avoid adhesion, oil contamination and scratching during cleaning. Great increasing for the yield is brought, and the yield is increased to 90% or above from original 80%.

The invention discloses a pin type capacitor packaging assembly. The pin type capacitor packaging assembly comprises a box body (1) and a plurality of packaging units arranged in the box body (1), wherein the plurality of packaging units are sequentially stacked in a direction from the bottom end to the top end of the box body (1); a plurality of adhesive tapes (2) are arranged on the inner walls of the packaging units and can adhere to pins of a pin type capacitor to prevent the pin type capacitor from falling off. The pin type capacitor packaging assembly can effectively prevent the capacitor pins from mutual friction and scraping in a transportation process, and accordingly, the qualified rate of products is increased.

The invention discloses an ultrasonic coupling agent and a preparation method and application thereof. The ultrasonic coupling agent is prepared from the following raw materials: a wetting agent, a lubricating agent and a gel matrix, and the lubricating agent contains glyceryl monostearate phthalate. The ultrasonic coupling agent is water-based gel, has moderate viscosity, good adhesion effect on engineering plastics, high signal-to-noise ratio and good sound transmission, and can improve the flaw detection depth; the ultrasonic coupling agent is smooth in texture and low in friction coefficient, and the workpiece and the probe are prevented from being scratched when sliding under pressure.

The invention discloses a core-pulling pipe embosser. The core-pulling pipe embosser comprises a split-type mold core set which can be pulled out step by step. The split-type mold core set comprises amold core provided with an embossing mold mark and an inner supporting core which is close to the mold core to force the side face where the embossing mold mark of the mold core is located to be attached to the inner side face of a to-be-embossed pipe. By adoption of the split-type mold core set, the inner supporting core can be pulled out first to provide a space for the mold core to retreat, sothat a concave part of the pipe can be avoided, and the mold core can be easily pulled out of the pipe; and the mold core and the inner wall face of the pipe are prevented from being scratched, and deformation of the pipe can be reduced. The invention further provides the split-type mold core set used for the core-pulling pipe embosser. Core pulling can be conducted smoothly after embossing, andthe split-type mold core set is particularly suitable for embossing thick pipes.

The invention discloses a kitchen knife with a limiting function. A kitchen knife body comprises an upper knife body, a lower knife body and a knife handle. Front square grooves and rear square grooves are formed in the front end faces and the rear end faces of the lower left end and the lower right end of the lower knife body correspondingly and internally provided with strip-shaped holes correspondingly. A left wheel set and a right wheel set are arranged on the lower left end and the lower right end of the lower knife body correspondingly and comprise front cylinders and rear cylinders correspondingly. The inner diameters of a front bearing and a rear bearing are tightly matched with the outer diameters of the front ends of the front cylinders and the rear ends of the rear cylinders correspondingly. The front cylinders and the rear cylinders comprise front circular partition plates, rear circular partition plates, front square plates and rear square plates correspondingly and further comprise circular concave holes, front tapered holes, front circular through holes, large inner hexagonal concave holes, rear tapered holes and rear circular through holes. Circular nuts, front tapered parts and screws are of an integral structure, and hexagonal nuts and rear tapered parts are of an integral structure. According to the kitchen knife, it can be guaranteed that melons and fruits cannot be cut off, the height can be flexibly adjusted, and operation is easy and convenient.