58results about How to "To achieve the effect of stretching" patented technology

The invention discloses a steel strip unwinding device with the adjustable width. The steel strip unwinding device comprises a shell. A clamping plate is arranged in the shell. A telescopic plate, a telescopic spring and a connecting rod are fixedly connected to one side of the inner wall of the shell from top to bottom in sequence. A right clamping block is arranged on the other side of the inner wall of the shell. The telescopic plate comprises a fixed sleeve and a movable pipe. One end of the movable pipe is inserted into a groove formed in one side of the fixed sleeve. The fixed end of the fixed sleeve is fixedly connected with one side of the inner wall of the shell. The other end of the movable pipe is fixedly connected with one side of the clamping plate. One end of the telescopic plate is fixedly connected with one side face of the clamping plate. According to the steel strip unwinding device with the adjustable width, the width can be adjusted, the working efficiency is improved when the device is used by persons, the time of replacing the steel strip unwinding device is shortened, the life of people is facilitated, and the steel strip unwinding device with the adjustable width is compact in structure, reasonable in design, high in applicability and easy to apply and popularize.

The invention discloses a rubber hammer with an extensible handle. The hammer handle is composed of a fixed rod and a containing rod. One end of the fixed rod is fixedly installed on the side face of the hammer. The end, far away from the hammer, of the fixed rod is movably installed inside the containing rod. A partition plate is fixedly installed at the top of the fixed rod. A first stopping block and a second stopping block are fixedly installed at the two ends of the top of the partition plate correspondingly. A fixed strip which is fixedly installed at the top of the partition plate is arranged at the gap between the first stopping block and the second stopping block. A containing groove is formed in the fixed strip. A clamping device is arranged inside the hammer handle. The clamping device comprises a fixing block, and the fixing block is movably installed on the containing rod. A connecting rod is fixedly installed at the bottom of the fixing block. A first supporting plate is fixedly installed at the bottom of the connecting rod. A compressed spring is fixedly installed at the bottom of the first supporting plate. The rubber hammer with the extensible handle has the advantage that the handle can be extended and retracted, and the problem that the handle cannot be extended and retracted is solved.

The invention discloses a high-accuracy anti-oxidation electrode, and belongs to the field of high-accuracy electrodes. According to the high-accuracy anti-oxidation electrode, a base of the electrodeis made from aluminum, and the surface of the base is painted with a gold material coating; therefore, with the application of the treatment mode, the conductivity of an electrode main body is guaranteed, and oxidation resistance of the electrode main body is enhanced, so that the electrode can serve for a long time. An under-pan, which functions as fixing, is arranged at the outer side of the electrode main body, and a stable base is formed in the part, in correspondence to a lead hole, of an electroencephalogram cap, so that firm fixing can be guaranteed, and the electrode can be partiallydetached under such special situations that the number of leads is reduced and the like; therefore, modularization and professionalization are achieved.

An automatic lentinus edodes pileus slicing machine comprises a feeding hopper, a box body, a slicing knife, a conveying belt, a driving belt wheel and a driven belt wheel. After lentinus edodes is manually added into the feeding hopper, a fan-shaped containing hopper on a rotating shaft at the lower end of the feeding hopper rotates clockwise, a part of pileus falling at a round discharging guide opening is scooped up to be poured onto the conveying belt, the situation that pileus is crushed during manual feeding and rotation of a common rolling shaft is avoided, completeness and attractiveness of the pileus are guaranteed, lentinus edodes is flatly laid on the conveying belt through bristles and sequentially enter a feeding conveying belt, the situation that the lentinus edodes jumps or the machine gets stuck by the lentinus edodes during slicing is avoided, meanwhile, the feeding conveying belt and the conveying belt are set to be at the same rotating speed, and the situation that one end is too high in rotating speed, the exterior of the pileus is abraded, and attractive appearance is affected are avoided. During slicing, a double-shaft motor is used for driving a rocker to rotate, a sliding block connected with the lower end of a crank slides on a guide rail, a blade achieves the telescopic effect, and the reciprocating motion of the blade is accelerated or slowed down by adjusting the rotating speed of the double-shaft motor so as to control the thickness of a pileus piece.

The invention relates to tire mounting equipment and particularly relates to tire mounting equipment for chemical production. According to the tire mounting equipment for chemical production, labor intensity can be reduced, mounting efficiency can be improved, structural damage to a tire hub can be reduced, and automatic tire discharging and automatic tire assembly product discharging are achieved. Tire mounting equipment for chemical production comprises a bottom plate, a stand column rack, a pressing mechanism and a push-up mechanism, wherein the bottom plate is provided with a shape frame,the stand column rack is arranged on the bottom plate; the pressing mechanism for mounting the hub on the tire is arranged among the pressing mechanism, the bottom plate and the fixture; and the push-up mechanism and the extension mechanism are provided with push-up mechanisms for automatic discharging. The equipment is advantaged in that a cam rotates to drive the first push rod to move up and down, the effect that the pressing wheel block reciprocates up and down is achieved, and when the first fixing frame moves downwards, a hub can be pressed downwards to be installed on a tire.

The invention provides dehydrating and drying equipment for an external force neutralization extruding type yarn ball based on centrifugal force and relates to the field of spinning machinery processing. The equipment solves the problems that the yarn ball for spinning is inconvenient to dehydrate and dry in a mode of centrifugal force and external force neutralization in dehydrating and drying processes. The dehydrating and drying equipment for the external force neutralization extruding type yarn ball based on the centrifugal force comprises a drying base, wherein a centrifugal mechanism isarranged at the top of the drying base, and the top of the centrifugal mechanism is communicated with a centrifugal ventilation pipe. The dehydrating and drying equipment for the external force neutralization extruding type yarn ball based on the centrifugal force has the advantages that the position of a semi-spherical yarn ball pressurization tray is adjusted by an arranged compression cylinder,so that the yarn ball is put into a yarn ball containing base, the compression cylinder is controlled to move downward, a telescopic rod is controlled to move, a pressure plate drives a wedge block to extrude an arc-shaped pressurization folding sheet downward, and furthermore, a semi-circular pressurization plate extrudes the yarn ball to be dehydrated.

The invention relates to the technical field of clothes, and discloses a bagging mechanism of an automatic packaging and clothes folding bagging machine. Folded clothes are moved to the rear end of aconveying belt along with the conveying belt, the rear end of a plastic bag on an inclined plate is fixedly clamped to the clamped position of the inclined plate and a clamping groove. A small hole isformed in the plastic bag, a first air outlet pipe is aligned to the small hole in the plastic bag, and the plastic bag is opened through the effect that the first air outlet pipe blows air to the small hole. After the plastic bag is blown open by the air outlet pipe, supporting rods stretch into the plastic bag while rotating. The two supporting rods rotating reversely are arranged, the folded clothes are put into the plastic bag, and meanwhile the position of an air flue can be changed. The air flue blows to an opening of the plastic bag. By means of the changed air blowing angle of the airflue, the opening of the plastic bag is opened better. By means of the threaded connection effect of a screw and a nut, the position of a limiting block on the work face of the inclined face can be changed, and therefore the work face is adjusted to the position size used for containing the plastic bag, and guarantees are provided for placing the plastic bag better.

The invention provides a rotary cutter which comprises a handle, a rotating shaft, a rotating plate, at least one cutting tool and a shaft sleeve, wherein the handle comprises a holding part and a supporting part which are connected together, wherein the holding part takes a shape suitable for being held by hands; the supporting part comprises a first side wall, a second side wall and a bottom wall for connecting the first side wall with the second side wall; the rotating shaft is provided with a first positioning part; the rotating plate is rotatably arranged in the supporting part through the rotating shaft; the cutting tool is arranged in the rotating plate through an elastic part; an opening suitable for the cutting tool to extend or retract in the rotating plate is arranged on the edge of the rotating plate; the shaft sleeve is rotatably arranged in the rotating plate; the shaft sleeve is provided with a cam used for pushing the cutting tool out of the opening; the shaft sleeve is also provided with a second positioning part; and the first positioning part and the second positioning part are matched for driving the shaft sleeve to rotate by the rotating shaft. The rotary cutter can realize extension and retraction of a plurality of tool bits in rotation, can be provided with a plurality of cutting tools in an effective space, has a compact structure, saves space and cost, is convenient to carry and operate, and increases the working efficiency.

The invention discloses an intelligent water meter capable of remotely checking data. The intelligent water meter comprises a shell, a first connecting pipe, a second connecting pipe, a U-shaped plateand a supporting plate; a display area is arranged at the top end of shell body, a sliding groove is formed in the outer side of the U-shaped plate; two ends of the support plate are fixedly connected with moving rods; one end of the moving rod penetrates through the sliding groove and extends out of the U-shaped plate to be fixedly connected with the baffle. The supporting plate is slidably connected to the U-shaped plate through a moving rod. The bottom end of the supporting plate is fixedly connected with a brush; a first sealing ring is fixedly connected to the outer edge of the first limiting plate; the invention discloses the intelligent water meter capable of remotely checking data. A water flow monitoring module, a central processing unit, a login module, an APP, a feedback unit and a water fee calculation module are arranged; water consumption is monitored through the water flow monitoring module, data are transmitted to the central processing unit, water fee calculation is taken out through the water fee calculation module and transmitted to the central processing unit through the feedback unit, and a worker can check the water fee through an APP.

The invention discloses a convenient-to-mount radiator for an electric airport ferry vehicle, and relates to the technical field of mounting. The convenient-to-mount radiator comprises a radiator, thetop of the radiator is fixedly connected with a rocker, the rocker is in transmission connection with a first transmission column through a rocker rotating shaft, the first transmission column is fixedly connected with a first arc-shaped gear, and the first arc-shaped gear is meshed with a second arc-shaped gear; the second arc-shaped gear is in transmission connection with a threaded rod througha transmission shaft, the threaded rod is in threaded connection with a threaded block, the left side of the threaded block is fixedly connected with a first rack, the first rack is engaged with thefirst gear, the first gear is in transmission connection with a second gear through a rotating shaft, and the second gear is engaged with the second rack; and the first gear and the second gear are rotationally connected with the left side of the radiator, the bottom of the second rack is fixedly connected with the top of a mounting base, and the mounting base is in threaded connection with a bolt.

The invention discloses a shearing-type door blocking device. A motor installation board is fixedly arranged on one side of a base, a servo motor is fixed to the installation board, a mother door rocker arm is rotatably connected with the base, a mother door and the mother door rocker arm are fixedly connected, and a child door which can be embedded into the mother door is rotatably connected withthe bottom of the mother door. A special-shaped crank provided with a long arm and a short arm is fixedly connected with a servo motor output shaft end, the other end of the long arm of the special-shaped crank is rotatably connected with one end of a connection rod, the other end of the connection rod is rotatably connected with one side of the child door, a middle end of the long arm of the special-shaped crank is rotatably connected with one end of a second connection rod, the other end of the second connection rod is rotatably connected with a middle end of the mother door rocker arm, theother end of the short arm of the special-shaped crank is connected with a tension spring, and the other end of the tension spring is connected with the base. According to the shearing-type door blocking device, a mode of the motor plus the connection rods can be directly used for driving a door plate, a worm and gear mechanism is omitted, and after being deenergized, the deenergized door plate can be reset directly through the tension spring. The shearing-type door blocking device has the outstanding advantages that the structure is simple, parts are easy to process, the maintenance cost islow, and the like.

The invention discloses sewage treatment equipment capable of automatically discharging sewage. The equipment comprises a pool body, one side of the pool body is fixedly provided with a shell, and a sewage outlet is formed in the bottom of one side, far away from the pool body, of the shell. The pool body is communicated with the shell through a through groove, a scraper blade is fixedly connected with the through groove, one end of the scraper blade makes contact with a conveying belt, and the other end of the scraper blade stretches into the shell. An inner cavity of the pool body is movably connected with a driving wheel and a driven wheel respectively, the back of the driving wheel is fixedly connected with an output shaft of a servo motor, the surface of the driving wheel is in transmission connection with the surface of the driven wheel through the conveying belt, and through holes are formed in the conveying belt. The sewage treatment equipment capable of automatically discharging the sewage achieves the effects of filtration and sewage discharge, solves the problems that the sewage discharge cost is high, a sewage discharge device is expensive and operation process is cumbersome, improves the sewage discharge efficiency and facilitates the people's life, and is reasonable in design, high in applicability, compact in structure and convenient for application and popularization.

The invention discloses a film opening device for an automatic bagging machine. The film opening device is characterized in that the film opening device comprises a film outer limiting structure and afilm inner supporting structure, wherein the film outer limiting structure is provided with a film channel, and a plurality of outer limiting roller shafts are arranged on a film inlet and a film outlet of the film channel correspondingly; the film inner supporting structure is arranged in the film channel, and a plurality of inner supporting roller shafts are arranged on the film inlet end and the film outlet end of the film inner supporting structure; and the plurality of outer limiting roller shafts are in one-to-one correspondence with the plurality of inner supporting roller shafts to form a plurality of opening channels for opening film bags. According to the film opening device for the automatic bagging machine, the film bags in the attached state can be opened, the film bags conveniently sleeve long material profiles, and the automatic bagging operation is achieved.

The invention relates to physical fitness equipment, in particular to physical fitness equipment with a protection function. According to the physical fitness equipment with the protection function, legs, hands and the back can be exercised, the equipment is automatically cleaned, and the safety is high. Physical fitness equipment with a protection function comprises bases, supports and a handrail, the supports are arranged on the bases on the two sides, the handrail is connected between the upper portions of the two supports, swing mechanisms are arranged on the lower portions of the supports, and protection mechanisms are arranged on the upper portions of the supports. Through cooperation of the swing mechanism and the protection mechanism, the swing mechanism achieves the leg stretching effect, and the swing mechanism drives the protection mechanism to protect the back of a body builder and prevent people from toppling backwards during exercise; through cooperation of the swing mechanism and the electric control mechanism, the swing mechanism automatically swings to achieve the leg stretching effect, and the problem that it is difficult to drive the swing mechanism to swing back and forth through self strength of people is solved.

The invention discloses a lawn telescopic adjustable LED underground lamp, and belongs to the technical field of LED underground lamps. Springs are welded to the ends, away from a lamp shell, of the fixed blocks correspondingly; mounting blocks are arranged at the top of the left side and the top of the right side of the lamp shell correspondingly, movable rods are arranged at the ends, away fromthe lamp shell, of the mounting blocks through pin shafts correspondingly, and the ends, away from the mounting blocks, of the two movable rods are fixedly connected through handles. A protective shell is arranged outside the LED base and the lamp shell; two groups of compression springs are arranged at the bottom of an inner cavity of the protective shell; the top of the compression spring is connected with the LED base through a top plate; ejector blocks are arranged on the left side and the right side of the lamp shell through springs, the ejector blocks penetrate through fixing holes formed in the ejector blocks to fix the lamp shell so as to fix the LED base, the ejector blocks are manually pressed to enable the ejector blocks to drive the springs to contract, and at the moment, the compression springs eject the ejector plates upwards through tension, so that the lamp shell moves upwards.

The invention discloses a multi-functional dedicated feather brush for a cartoon. The multi-functional dedicated feather brush comprises an outer wooden pole, a first limited block and a storage housing, wherein a handheld part is fixedly mounted on the left side of the outer wooden pole; a straight slot is formed in the upper surface of the outer wooden pole; rubber belts are respectively arranged on two sides of the straight slot; magnetic sheets are fixedly mounted at the bottoms of the rubber belts; a phosphor strip is fixedly connected to the front surface of the outer wooden pole; an inner wooden pole is arranged inside the outer wooden pole; a spring is mounted on one side of the inner wooden pole, and is positioned inside the straight slot; irons are fixedly mounted on the upper side and the lower side of the first limited block; one end of the first limited block penetrates through the straight slot to be fixedly connected with one end of the spring; a threaded connection shaft is arranged on one side of the inner wooden pole; a connecting seat is fixedly connected to one side of the threaded connection shaft; and a feather tract is mounted on one side of the connecting seat. The multi-functional dedicated feather brush is reasonable in design, and convenient to use, and has the functions of resisting skid, extending and retracting, and carrying a light source and a storage device.

The invention belongs to the field of medical treatment and especially relates to a walking stick with a ventilation effect. The walking stick comprises a supporting handle, wherein a first cavity isformed in the supporting handle, a plurality of first ventilation holes communicated with the outside are formed in a lateral wall of the first cavity, supporting blocks are fixedly connected to the two sides of the lower end of the supporting handle, grooves are formed in lower end faces of the supporting blocks, the first cavity is communicated with the grooves through connection pipes, telescopic pipes are fixedly connected to the lower ends of the connection pipes, supporting rods are arranged in the grooves, the lower ends of the telescopic pipes are fixedly connected with the upper endsof the supporting rods, three-way valves are arranged in the supporting rods, first air exhaust ends of the three-way valves are communicated with the grooves through first air exhaust channels, firstair exhaust openings are arranged on lateral walls of the grooves, control valves are arranged in the first air exhaust openings, a holding handle is fixedly connected between the two supporting rods, and a second cavity is formed in the holding handle. The walking stick disclosed by the invention not only has better ventilation and reduces patient pain, but also is convenient to use; furthermore, the length of the walking stick is convenient to adjust.

The invention relates to the technical field of power transmission and transformation, and discloses an intelligent fault monitoring device for power transmission and transformation, comprising a device body. A handle is fixedly connected to the front face of the device body. A base is fixedly connected to the bottom of the device body. A damping structure is fixedly connected to the inner portionof the base and the top of the damping structure is fixedly connected with the bottom of the device body. A damping support rod is fixedly connected to the inner portion of the base and the top of the damping support rod is fixedly connected with the bottom of the device body. A rubber spring is fixedly connected to the inner portion of the base and the top of the rubber spring is fixedly connected with the bottom of the device body. A connecting block is fixedly connected to the back face of the device body. A first connecting shaft is fixedly connected to the bottom of the connecting block.A telescopic structure is movably connected to the outer portion of the first connecting shaft. According to the intelligent fault monitoring device for power transmission and transformation, purposes of being high in damping function and convenient to move are achieved.

The invention belongs to the medical field, and in particular relates to a crutch with air-permeable effect, which includes a support handle, a first cavity is arranged inside the support handle, and a plurality of first air-permeable holes communicating with the outside are arranged on the side wall of the first cavity. hole, both sides of the lower end of the support bar are fixedly connected with support blocks, the lower end surface of the support block is provided with a groove, the first cavity communicates with the groove through a connecting pipe, the lower end of the connecting pipe is fixedly connected with a telescopic tube, and the groove A support rod is provided, the lower end of the telescopic tube is fixedly connected with the upper end of the support rod, and a three-way valve is arranged inside the support rod, the first exhaust end of the three-way valve communicates with the groove through the first exhaust channel, and the side of the groove A first exhaust port is arranged on the wall, a control valve is installed in the first exhaust port, a grip handle is fixedly connected between the two support rods, and a second cavity is arranged in the grip handle. The present invention not only has good gas permeability, relieves pain of patients, but also facilitates adjustment of its length, and is convenient to use.

The invention discloses a noninvasive tibia stretching traction apparatus, which comprises a clamping tube, wherein a connecting plate is arranged at one end of the clamping tube; mountain-climbing buckles are arranged at two sides of the connecting plate; a first protective layer and a second protective layer are arranged on the inner wall of the clamping pipe; lantern rings are arranged betweenthe first protective layer and the second protective layer; silicone exhaust tubes are arranged on the first protective layer and the second protective layer; the silicone exhaust tubes are arranged in a mode that one ends of the silicone exhaust tubes run through the clamping tube; the clamping tube is of a hollow structure and is provided with an interlayer; a drying agent is contained in the interlayer; air vents are kept in the inner layer of the clamping tube; a fixing device is arranged at the other end of the clamping tube; a fixing ring is arranged on the inner ring surface of each lantern ring; a protective device is arranged on the inner ring surface of each fixing ring; an electric cylinder is arranged on the clamping tube; the electric cylinder is fixedly connected to the clamping tube; a pedal is arranged at the tail end of the electric cylinder; the pedal is in hinged connection to the electric cylinder; and connecting rings, which are matched with the mountain-climbing buckles, are arranged on the pedal. With the application of the noninvasive tibia stretching traction apparatus, foot drop can be prevented; and by virtue of the air vents and the drying agent which are cooperated in use, sweat in legs of a patient can be absorbed conveniently.

The invention discloses a multifunctional intelligent crutch. The multifunctional intelligent crutch comprises a crutch body, a handle, an underarm support and a crutch head, wherein the crutch body comprises a main pipe, an upper pipe and a lower pipe; the handle is positioned on the main pipe; the underarm support is positioned at the upper part of the crutch body, and is connected with the upper pipe; the crutch head is positioned at the lower part of the crutch body; a first positioning hole, a first memory hole, a second positioning hole and a second memory hole are formed in the main pipe; a plurality of limiting holes are formed in the upper pipe and the lower pipe. The multifunctional intelligent crutch has the characteristics that the functions are diversified, the operation is convenient, the carrying is convenient and the like; the multifunctional intelligent crutch is suitable for being popularized and applied.

The invention discloses a cutting device for kraft paper protective films. The cutting device comprises a box body; support legs are arranged at the bottom of the box body; one end of the top of the box body is fixedly connected with a bracket; a cutting mechanism is arranged at the bottom of the bracket; a clamping device is arranged in the box body, and includes a forward / reverse rotating motor; an output shaft of the forward / reverse rotating motor is fixedly connected with the back surface of a wire winding wheel; the surface of the wire winding wheel is fixedly connected with one end of a pull rope; and the other end of the pull rope is clamped with a hanging ring arranged on one side of a connecting plate through a hanging hook. The cutting device for the kraft paper protective films reaches the clamping effect, effectively prevents the kraft paper protective films from shaking in the cutting process, prevents the kraft paper protective films from be inaccurately cut due to shaking, prevents wastes, improves the cutting efficiency, brings economic benefits, is convenient for people to use, and is reasonable in design, high in adaptability and convenient to popularize and apply.

The invention relates to the technical field of packaging bags, in particular to a packaging bag stably used. The packaging bag comprises a bag body, two supporting rods are arranged on one side of the bag body, handles are arranged on the two sides of the bag body correspondingly, the bag body is divided into an outer bag layer, an interlayer and an inner bag layer, two first grooves are formed in each of the two side walls of the bag body, two through holes are formed in the side wall of the bag body, fixed blocks are arranged at the positions, directly facing the through holes, of the innerwall of the bag body correspondingly, a plurality of airbag columns are arranged at the bottom end of the inner wall of the bag body, and two supporting plates are arranged inside the bag body. Through the supporting plates arranged inside the packaging bag and the supporting rods mounted on the packaging bag, the effect of opening the packaging bag is achieved, in addition, the packaging bag isdivided into the outer bag layer, the interlayer and the inner bag layer, thus the effect of improving the hardness of the packaging bag is achieved, and the situation that the packaging bag is affected with damp during shipment or scratched by the outside is avoided.

An automatic slicing machine for shiitake mushroom caps, including a feeding hopper, a box body, a slicing knife, a conveyor belt, a driving pulley and a driven pulley. The type hopper rotates clockwise to lift up part of the mushroom caps falling on the circular discharge guide and pour them on the conveyor belt, avoiding the situation of manual loading and ordinary rolling shafts crushing the mushroom caps, ensuring that the bacteria The cover is complete and beautiful, and then use the bristles to spread the mushrooms on the conveyor belt, and then enter the feeding conveyor belt one by one to avoid the mushroom jumping or the cap being stuck inside when slicing. At the same time, the feeding conveyor belt and the conveyor belt are set at the same speed to prevent If the speed of one end is too fast, the outside of the cap will be worn, which will affect the appearance. When slicing, the double-axis motor is used to drive the rocker to rotate. Rotate speed to speed up or slow down the reciprocating motion of the blade to control the thickness of the cap sheet.

The invention relates to a flusher, in particular to an eye flushing device for the ophthalmology department. The technical problem to be solved is to provide the eye flushing device for the ophthalmology department, which is convenient to clean, automatic in operation and good in cleaning effect. The eye washing device for the ophthalmology department comprises a base, a supporting column, a sliding frame, a fixing frame, a water inlet pipe, a cover and a storage box, the supporting column is arranged in the middle of the top of the base, the sliding frame is connected to the supporting column in a sliding mode, the fixing frame is arranged on one side of the sliding frame, the cover is rotationally connected to one side of the top of the fixing frame, the storage box is arranged in the fixing frame, and the interior of the storage box is a hollow split layer. The lifting mode of the lifting mechanism is adopted, the sliding frame and parts on the sliding frame are adjusted up and down so as to be suitable for patients of different heights, and the stretching mode of an air cylinder telescopic rod is adopted by the stretching mechanism so as to achieve the effect of stretching eyes.

The present invention relates to the technical field of unmanned aerial vehicle panoramic photography, in particular to an unmanned aerial vehicle retractable frame for carrying a panoramic camera, including a bottom plate and a top plate, a panoramic camera is installed on the lower surface of the bottom plate, and the top plate is installed on an unmanned The bottom surface of the machine, the four corners of the lower surface of the top plate are provided with supporting feet, and a telescopic mechanism and a driving mechanism are arranged between the bottom plate and the top plate, and the driving mechanism is used to drive the telescopic mechanism to expand and contract. For the UAV retractable frame equipped with a panoramic camera, when the driving mechanism is used to drive the telescopic mechanism to extend, the image of the UAV will not fall within the viewing range of the panoramic camera. At the same time, when the driving mechanism drives the telescopic mechanism to shrink, the panoramic camera will The ground clearance height is greater than that of the supporting feet, which prevents the panoramic camera from being accidentally injured when the drone takes off and lands, and facilitates the takeoff and landing operation of the drone.

The invention provides a novel multi-layer printed circuit board. The novel multi-layer printed circuit board comprises a circuit board, a paster triode, a triode, a paster capacitor and an electrolytic capacitor, wherein the paster triode is arranged at one side of the surface of the circuit board, and the paster triode is fixedly connected with the circuit board; the triode is arranged at the middle part of the surface of the circuit board, and the triode is fixedly connected with the circuit board; the paster capacitor is arranged on the surface of the circuit board, and the paster capacitor is fixedly connected with the circuit board; and the electrolytic capacitor is arranged on the surface of the circuit board, and the electrolytic capacitor is fixedly connected with the circuit board. The circuit board is fixed through an upper fixed column and a lower fixed column, and the upper fixed column and the lower fixed column are supported on the bottom surface of the circuit board andpenetrate through a positioning hole close to the edge of the board by a positioning pin, thereby achieving the effect of fixing the multi-layer printed circuit board, being suitable for production and use of the novel multi-layer printed circuit board, and having good development prospects.