37results about How to "Implement auto-shrink" patented technology

The invention discloses an improved power distribution cabinet device. The improved power distribution cabinet device comprises a power distribution cabinet, a protection structure and a locking structure, wherein the protection structure is arranged in the power distribution cabinet, the locking structure is used for fixing the power distribution cabinet and comprises an assembly plate, a fixed connection arm and a locking arm, the fixed connection arm is fixedly arranged on a right end surface of the assembly plate, the locking arm is fixedly arranged at a right end of the fixed connection arm and extends upwards, first bevel surfaces are vertically and symmetrically arranged on a right end surface of the locking arm, installation grooves are vertically and symmetrically formed in the right end surface of the assembly plate and are provided with rightward ports, a communication groove is formed in a left end wall of each installation groove and communicates with an outer end, a spiral nail is arranged in the communication groove and is used for fixing the assembly plate on a wall, an insertion cavity is formed in a left end surface of the power distribution cabinet and is provided with a leftward port, a locking groove is formed in a right upper end of the insertion cavity, extends upwards and is matched with the locking arm, a push groove is further formed in a position, arranged below the locking groove, of a left end surface of the power distribution cabinet, a sliding arm is arranged in the push groove in a sliding way, and a drawing head is fixedly arranged at a leftend of the sliding arm.

The invention provides a security fence, and relates to the technical field of safety protection devices. The security fence comprises fixing assemblies, a coiling device, a connecting rope, a dryingdevice and a purse net assembly. The coiling device is connected with the inner walls of the fixing assemblies, the connecting rope is arranged on the coiling device, the purse net assembly is arranged at the end, stretching out of the coiling device, of the connecting rope, the coiling device is used for enabling the connecting rope and the purse net assembly to have the motion tend into a containing cavity, the end, stretching out of the coiling device, of the connecting rope runs through an opening and is connected with any adjacent fixing assemblies so that the purse net assembly is arranged between any two adjacent fixing assemblies, the drying device is located at the bottoms of the fixing assemblies, the drying device is used for heating and drying the purse net assembly inside thecontaining cavity, combination complexity of a purse net and a fence is relieved, the technical purpose of automatically coiling the purse net cannot be achieved, and the technical effects that integrated connection of the purse net and the fence is achieved, the purse net can be automatically retracted, and the purse net can be actively dried are achieved.

The invention relates to the technical field of polishing, and discloses a large-diameter inner hole polishing device for castings. The polishing device comprises a rotating shaft; a fixing chuck is fixedly connected to the outer side of the rotating shaft; a guide ring is fixedly connected to the outer side of the fixing chuck; polishing pieces are movably connected to the two sides of the guidering; and arc-shaped holes are formed in the polishing pieces. According to the large-diameter inner hole polishing device for the castings, a movable plug drives a pushing rod to operate, an electromagnet and a magnetic block are used in cooperation, when an arc-shaped clamping piece moves outwards, a guide rod pushes the pushing rod to move outwards under the action of the centrifugal force, meanwhile, a second sliding block is pulled to move rightwards, at the moment, the relative area of a positive plate and a negative plate is gradually increased, and the circuit voltage is gradually increased, so that the magnetism of the electromagnet is gradually increased, the effect of controlling the polishing pieces to move outwards through the magnetism is achieved, the polishing area of a polishing stone is increased, the purpose of automatically adjusting the diameters of polished inner holes is achieved, and the polishing efficiency is effectively improved.

The invention relates to a hand reel. The hand reel comprises a rack, a horizontal rotating shaft and a main driving device for driving the rotating shaft to rotate are rotatably connected to the rack, a rotation yarn frame is fixedly connected to the rotating shaft, one end of the rotating shaft is connected with the rack, the other end of the rotating shaft hangs, a yarn guide ring is movably connected to the position, above the rotation yarn frame, of the rack, and can be parallel to the axial direction of the rotating shaft to move back and forth, a yarn guide driving device used for driving the yarn guide ring to move back and forth is arranged on the rack, the hand reel can greatly shorten the axial length of the rotation yarn frame, rotating shaft loads can be reduced, one end of the rotating shaft hangs to facilitate falling of hand yarn, the rotation yarn frame can wind one piece of hand yarn each time, synchronous starting or synchronous stop between pieces of hand yarn doesnot exist, the idle condition of the other yarn due to one-by-one making up or gradual hank tie can be avoided, and production efficiency is effectively improved.

The invention relates to a traction device for an occluding cuff device. The traction device comprises a bottom plate and an occluding cuff. A motor is installed on the bottom plate. The output shaft end of the motor is provided with a rotating belt wheel. A slide rail positioning plate is installed in the middle of the bottom plate and provided with a first slide rail. A first fine adjusting slider and a second fine adjusting slider are installed in the first slide rail. A left supporting plate and a right supporting plate are installed on the bottom plate. A left guide wheel is installed on the left portion of the left supporting plate. A second slide rail is installed in the middle of the left supporting plate. A second slider is installed in the second slide rail. A right guide wheel is installed on the right portion of the right supporting plate. A third slide rail is installed in the middle of the right supporting plate. A third slider is installed in the third slide rail. The upper end of the third slider is fixedly connected with the right end of the occluding cuff. The two ends of the first fine adjusting slider, the two ends of the second fine adjusting slider, the two ends of the second slider and the two ends of the third slider are each provided with a fixed buckle plate. The left end of the first fine adjusting slider, the left end of the second slider, the right end of the second fine adjusting slider and the right end of the third slider are connected through a working belt. The right end of the second slider and the left end of the third slider are connected with the rotating belt wheel through a working belt.

The invention discloses a vertical type agricultural planting frame which is convenient to use. When plants grow normally, a first supporting frame and a second supporting frame can be pushed out by adopting a first electric push rod and a second electric push rod, and thus a planting frame is converted into a ladder-shaped planting frame, so that plants can receive light uniformly; when plants need management such as planting, fertilizing, fruit picking, pesticide spraying and the like, the first electric push rod and the second electric push rod are contracted, and thus the first supportingframe and the second supporting frame are contracted, so that a certain space is reserved between two adjacent planting frames for management personnel to use; a human body infrared sensor is mountedon one side of a first supporting column in an embedded manner, when the management personnel stand beside the planting frames, the human body infrared sensor can detect the existence of people, and thus the automatic contraction of the first supporting frame and the second supporting frame is realized; and the frame is simple in structure and convenient to mount, not only can the occupied area ofthe planting frames be effectively saved, but also uniform light reception of plants and normal growth of plants can be ensured.

The invention relates to a continuously-adjustable tourniquet device. The tourniquet device comprises a tourniquet shell. The tourniquet shell comprises a left shell body, a middle shell body, a right shell body and a bottom plate. A tourniquet is installed in the middle shell body, a motor is installed at the left front end of the bottom plate, a rotating belt wheel is installed at the motor output shaft end of the motor, a bottom sliding rail positioning plate is installed in the middle of the bottom plate, a first sliding rail is installed on the sliding rail positioning plate, a first sliding base is installed in the first sliding rail, the two ends of the first sliding base are fixedly connected with a working belt, a left rear supporting plate and a right rear supporting plate are installed at the left rear end and the right rear end of the bottom plate respectively, a left guide wheel is installed at the left upper end of the left rear supporting plate, a second sliding rail is installed on the left rear supporting plate, a second sliding base is installed in the second sliding rail, the upper end of the second sliding base is fixedly connected with the left end of the tourniquet, a first right guide wheel and a second right guide wheel are installed on the right of the right rear supporting plate, a third sliding rail is installed on the left side of the first right guide wheel, a third sliding block is installed in the third sliding rail, and the upper end of the third sliding block is fixedly connected with the right end of the tourniquet.

The invention discloses a water-saving type rock or concrete cylindrical sample manufacturing device. The water-saving type rock or concrete cylindrical sample manufacturing device comprises a frame; the frame is composed of a horizontal guide rail, a vertical stand column and a sliding rod, wherein the vertical stand column and the sliding rod are in sliding fit to adjust a sample mounting space and further can manufacture samples at any height; a sample can be mounted through clamping units of a bearing plate and a rubber plate and driven through a coaxial motor, and a driven grinding mode can be converted into a driving grinding mode; meanwhile, a grinding module which can slide left and right is arranged, and according to the difference of the distance between the grinding module and the center of the sample, cylindrical samples of different diameters can be manufactured; a cooling water pipe can slide along with a vertical slider to save water and energy. The water-saving type rock or concrete cylindrical sample manufacturing device is simple in structure and can complete manufacturing of the cylindrical samples within one step, thereby saving time and labor.

The invention relates to an automatic telescopic lantern and a using method thereof. The automatic telescopic lantern comprises a lantern body, a bottom support, a sliding assembly and a lighting assembly. The bottom support is arranged at the lower end of the cage body, the sliding assembly is arranged at the upper end of the cage body, and the lighting assembly is arranged in the cage body. Thecage body comprises a plurality of steel wire ropes, and the outer side of the cage body is wrapped with elastic cloth. The use method is simple to operate and convenient to use; the lantern mainly overcomes the defects that a traditional lantern is troublesome to assemble and disassemble, time-consuming, labor-consuming and the like, the lantern provided is simple in structure, can achieve automatic contraction, can be unfolded when used in festivals, can be folded when not used in non-festivals, is convenient to use, saves the labor cost during assembly and disassembly, and is small in mainbody size and convenient to store and transport.

The invention discloses an intelligent breeding device for lotus roots. The breeding device includes a contracting bracket and a transparent film, wherein the transparent film is fixed on the outer surface of the contracting bracket, and the bottom of the contracting bracket is provided with a slide rail; the contracting bracket is slidably connected with the slide rail, and the contracting bracket comprises a support frame and a contracting rod; one side of the breeding device is provided with a transmission device, and the middle part of one side of the support frame is fixed with a slide block; the slide block is slidably connected with a slide groove, and is internally provided with threaded holes; one side of a frame is provided with a motor bracket, and a motor is fixed at the top of the motor bracket through bolts; the output shaft of the motor is fixedly connected with one end of a screw rod, and the other end of the screw rod is rotatablely connected with one end, away from the motor, of the slide groove through a bearing; the threaded holes are movably connected with the screw rod, a regulating device is arranged inside the breeding device, and a pool body is arranged inside the breeding device. The intelligent breeding device for lotus roots can provide a suitable invariable environment for the growth of lotus roots, and also can be used for mechanized equipment during harvesting.

The invention discloses a shrimp intercepting standing net for a water intake of an offshore nuclear power plant. The shrimp intercepting standing net comprises a plurality of net bags and collectingbags arranged at tails of the net bags, wherein the net bags are arranged in parallel, adjacent net bags are in matched connection, net openings are formed in end parts of the net bags, sinker rings are arranged at single sides of edges of the net openings, and a plurality of buoys are arranged at single sides, symmetric to the sinker rings, of the edges of the net openings; at least one inner bagis arranged inside any net bag, a plurality of inner bags are sequentially distributed at intervals along a direction from the net openings to the collecting bags when the quantity of the inner bagsis plural, a plurality of mesh openings are formed in both the net bags and the inner bags, and sizes of the mesh openings of the inner bags are of gradient distribution along the direction from the net openings to the collecting bags; and at least one hauling cable are arranged on the net bags and are used for fixing the net bags, and at least one ball float are arranged on the collecting bags.

The invention discloses an automatic pressure relief valve comprising a valve body, a valve element and a valve rod. A liquid inlet is formed in one side of the valve body; a liquid outlet is formed in the other side of the valve body; a cavity is formed inside the valve body, and the two ends of the cavity are connected with the liquid inlet and the liquid outlet correspondingly; a supporting frame is installed on the side, at the end of the liquid inlet, inside the valve body; a circular through hole is formed in the lower end of the supporting frame, and a T-shaped circular cylinder is installed inside the circular through hole; a compression spring is installed inside the T-shaped circular cylinder; a valve cover is installed at the upper end of the valve body through a bolt; one end of the valve element is installed inside the liquid inlet, and the other end of the valve element is installed inside the T-shaped circular cylinder and connected with one end of the compression spring; a valve rod is installed at the center of the valve cover; a tapered sleeve is installed at the lower end of the valve rod through a thread; and a hand wheel is installed at the upper end of the valve rod. The automatic pressure relief valve has the characteristics of being simple and reasonable in structure and flexible in operation.

The invention discloses a jellyfish intercepting net and a use method of the net. Th net comprises a plurality of net walls and net bags matched and connected with the net walls; two adjacent net walls are symmetrically distributed, one side of net wall along the length direction is provided with a plurality of sinker rings at intervals, one side of the net wall that is symmetrical to the sinker rings is provided with a plurality of buoys at intervals, the buoys correspond with the sinker rings one by one, the inner side of the net wall is provided with a guiding mechanism, and the guiding mechanism can guide jellyfish to the inner side of the net wall; and the end of the net wall is fixedly connected with a net ring, one end of the net ring is connected with the net bag, the net bag is used to collect jellyfish, the net bag is provided with at least one floating ball, the net bag is provided with at least one pull rope, and the net bag can be retracted into the net through the pull rope.

The invention discloses a telescopic structure which comprises an inner pipe, an outer pipe, a telescopic assembly connected with the inner pipe and a driving surface arranged on the outer pipe, wherein the telescopic assembly comprises an elastic piece and a protruding part, one end of the protruding part abuts against the elastic piece, the other end of the protruding part extends out of the side wall of the inner pipe, an inclined surface is formed on the protruding part, the driving surface and the end face of the outer pipe are located at different horizontal heights, when the inner pipe moves towards the outer pipe, the driving surface extrudes the convex part to move inwards along the inclined surface, and then the outer pipe continuously extrudes the convex part along the inclined surface, so that the convex part is propped against the inner wall of the outer pipe to translate, and the inner pipe and the outer pipe are overlapped and shrunk along the axial direction. The invention further discloses a selfie stick, a lamp holder and a photography tripod. The matching structure of the telescopic assembly and joints is simple, and the assembly size is reduced; and the adjacent pipe bodies can contract automatically without independent operation, operation is easy and convenient, and the length control flexibility is high.

The invention discloses a scaffold with sealing boards capable of achieving automatic sealing and obstacle overcoming in the lifting process. The scaffold comprises multiple layers of scaffold boards.The inner sides of the scaffold boards are connected with the sealing boards. The sealing boards can turn over relative to the scaffold boards so as to be used for fill in gaps between the scaffold boards and a building. A sliding board is further arranged on the inner side of each sealing board. Each sealing board and the corresponding sliding board are in sliding sleeved fit, and an elastic device is arranged between each sealing board and the corresponding sliding board. The sliding boards slide in the direction close to the sealing boards when bearing the acting force pointing to the sealing boards and compress the elastic devices in the sliding process, and the elastic devices push the sliding boards to reset when the acting force is removed. According to the scaffold, in the liftingprocess, if the scaffold meets building protrusions, the building protrusions can act on the sliding boards, the sliding boards slide in the direction close to the sealing boards when bearing actingforce of the protrusions and compress the elastic devices in the sliding process, and therefore the sealing boards can overcome the building protrusions smoothly; and after the sealing boards overcomethe building protrusions, the acting force of the protrusions is removed, and the elastic devices push the sliding boards to reset to achieve sealing.

The invention discloses a medical venous indwelling needle convenient for blood circulation in the technical field of medical injection devices. The medical venous indwelling needle comprises a diversion cavity, wherein fixing straps are arranged on the upper and lower sides of the diversion cavity; rotating rods are movably clamped with the interiors of the two sides, close to one sides, of the diversion cavity; the rotating rods are fixed to the side walls of the fixing straps; an energy storage spring is sleeved to the two ends of each rotating rod; the two ends of the rotating rods are movably connected with the inner wall of the diversion cavity through the energy storage springs; a connector is arranged at the upper end of the fixing strap at the top; a fixed clamping block is arranged on the side surface of the connector; a rotating pin is arranged at one end of the fixed clamping block; one end of the fixed clamping block is movably connected with one end of the side surface ofthe connector through the rotating pin; a clamping groove is formed in the side surface of the fixed clamping block. The medical venous indwelling needle is simple in structure and convenient to use,and ensures that the transfusion effect is better through fixing to a device and adjustment of a diversion tube.

The invention discloses a medical wound dressing internal cleaning device, which comprises a device body, a conveying tube, a negative pressure absorption tube and a drainage tube installed on the side wall of the device body. The inner cavity of the device body is divided into a central positive pressure chamber for delivering cleaning fluid or drug administration and a central negative pressure chamber for absorbing liquefied water substances. The central positive pressure chamber and the central negative pressure chamber There are a number of drainage tube interfaces distributed on the outer wall, and the drainage tubes communicate with the corresponding central positive pressure chambers and central negative pressure chambers through the drainage tube interfaces; the central positive pressure chambers are connected with the delivery tube, and the The central negative pressure chamber is connected with the negative pressure absorption pipe. A medical wound dressing and a medical wound dressing cleaning system using the cleaning device are also disclosed. The invention separates the cleaning liquid entry circuit from the recovery circuit of the liquefied water accumulation, and can realize efficient circulation of the cleaning liquid inside the wound dressing.

The invention belongs to the field of smart home, and particularly relates to an spill-proof hand washing sink which comprises a hand washing tank; a water outlet is formed in the lower surface of the hand washing tank; an overturning cover is rotatably connected in the water outlet; a cavity is formed in the overturning cover; two second through holes are formed in each of the upper surface and the lower surface of the overturning cover; a sliding sleeve is arranged in the cavity; threaded rods are rotationally connected with the two inner surfaces of the overturning cover correspondingly; the threaded rods are coaxially and fixedly sleeved with rotating discs; two first through holes are formed in each rotating disc; two sliding blocks are slidably connected with the interior of the sliding sleeve; two third through holes are formed in each sliding block; the sliding blocks are in threaded connection with the threaded rods; a plurality of symmetrically-arranged limiting blocks are fixedly connected with the inner side wall of the sliding sleeve; and thin ropes are fixedly connected with the surfaces, away from each other, of the two sliding blocks. According to the spill-proof hand washing sink, by arranging the thin ropes and utilizing buoyancy of water, the anti-overflow function of the hand washing sink is achieved, water accumulation on the ground is avoided, and the thin ropes are made of an elastic material and are prevented from being wound.

The invention provides high-capacity electronic information storage equipment, and relates to the technical field of electronic information storage. The high-capacity electronic information storage equipment comprises a main body, a sliding groove is formed in the inner wall of the main body, a second sliding plate is arranged at the right end of the inner side of the sliding groove, and the sideface, away from the sliding groove, of the second sliding plate is fixedly connected with one end of a second damping telescopic rod; the end, away from the second sliding plate, of the second dampingtelescopic rod is fixedly connected with the outer wall of a locking ring, the inner wall of the locking ring is connected with the outer wall of a connector in a sliding mode, the left end of the connector is fixedly connected with the right end of a protective shell, and a fixing groove is formed in the inner wall of the protective shell. And the inner side of the fixing groove are fixedly connected with the two ends of the mounting plate. And through mutual cooperation of the second damping telescopic rod and the locking ring, the connector is contracted, and the moving stability of the connector is improved.

The invention discloses a water-saving rock or concrete cylindrical sample production device, comprising a frame, the frame includes a horizontal guide rail, a vertical column, and a slide bar, and the vertical column and the slide bar can be slidably matched to adjust the sample The size of the installation space can make samples of any height according to the needs; the samples are installed through the clamping parts of the pressure bearing plate and the rubber plate, the samples are driven by the coaxial motor, and the grinding changes from passive to active. At the same time, there is also a grinding assembly that can slide left and right. According to the distance between the grinding assembly and the center of the sample, cylindrical samples with different diameters can be produced; the cooling water pipe slides with the vertical slider to save water and energy; the structure of the present invention It is simple and can complete the production of cylindrical samples at one time, saving time, labor and effort.

The invention relates to the technical field of medical instruments, in particular to a rubber-like shape memory recyclable esophageal stent and a preparation method thereof. The esophageal stent is prepared from 70-85 parts by weight of a superelastic material, 13-20 parts by weight of a shape memory polymer material and 2-8 parts by weight of biocompatible nano micro powder. When being in use, the rubber-like shape memory recyclable esophageal stent is pressed and held in a catheter and is conveyed to a diseased region in a body; and after the catheter is removed, the pressed and held rubber-like shape memory recoverable esophageal stent recovers by means of hyperelasticity. The rubber-like shape memory recyclable esophageal stent is heated to the shape memory recovery temperature of the shape memory polymer material to recover to the initial structure during recycling, so that the esophageal stent is convenient to take out. The manufacturing material of the stent obtained by the invention has biocompatibility and small stimulation to tissues; automatic contraction of the stent can be realized through proper external stimulation; and by coating the surface of the stent with a therapeutic drug, the therapeutic effect can be further enhanced.

The invention discloses a portable relay-protection working platform comprising a box body, as well as a relay-protection calibrator, a tool kit and a power wire component which are arranged inside the box body, wherein one end of the bottom of the box body is provided with two rollers, while the other end of the bottom of the box body is provided with a telescopic pull rod; one side surface of the box body is provided with a side turnable cover which can be turned up and opened to a horizontal state; and the inner side of the side turnable cover is provided with a support leg component which can be turned open to support and position the side turnable cover at the horizontal state or folded to retract to the inside of the side turnable cover. By virtue of the working platform, the needed equipment, tools and devices for work can be conveniently carried at one time; the side turnable cover at the side surface can be turned to the horizontal state so as to serve as a climbing bench or an operation bench, thereby facilitating relevant protection and maintenance work on high equipment; the in-situ instruments in the platform are wired up, so that in-situ operation time is saved; the working platform is also provided with the power wire component that is provided with an automatic telescopic wire coil, the length of the power wire can be adjusted according to the distance to an in-situ power supply; and when the working platform is used, the working site is clean and orderly.

The invention discloses an automatic shrinking airplane floor air-conditioning air supply hose and a manufacturing method thereof. The automatic shrinking airplane floor air-conditioning air supply hose comprises an air supply hose main body; a shrinking rope is put through the air supply hose main body; one end of the shrinking rope is fixedly connected with the tail end of the air supply hose main body, while the other end of the shrinking rope is connected with a shrinking apparatus; the shrinking apparatus acts to pull the shrinking rope so that the air supply hose main body can shrink automatically. According to the automatic shrinking airplane floor air-conditioning air supply hose, a shrinking sleeve is attached on an inner adhesive tape layer; the shrinking rope is put through the shrinking sleeve; one end of the shrinking rope is fixed with a reducing joint, while the other end of the shrinking rope is connected with the automatic shrinking apparatus; when a flight is about to leave, the shrinking rope can be pulled by use of the automatic shrinking apparatus and then tightened, and therefore, the automatic shrinkage of the air supply hose can be realized.

The invention relates to the related field of intelligent street lamps, in particular to a street lamp capable of automatically saving electric energy, which comprises a lamp bracket and a box body fixedly mounted on the outer surface of the upper side end wall of the lamp bracket, and is characterized in that a first cavity is fixedly formed in the box body, a driving shaft is rotatably mounted on the right side end wall of the first cavity, the driving shaft is in power connection with a main shaft of a motor, the motor is fixedly installed on the end wall of the right side of the first cavity, a worm is fixedly installed on the outer surface of the driving shaft, and the worm and a worm wheel are in meshing transmission. According to the street lamp capable of automatically saving electric energy, the surface of a lampshade can be automatically cleaned, a cleaning brush can be tightly attached to the surface of the lampshade for cleaning, automatic power generation can be achieved through a solar panel, automatic contraction of solar energy can be achieved, pedestrians and vehicles can be automatically detected, automatic power-off of a circuit can be achieved, and all action processes can be controlled through clutching between shafts.

The invention discloses automatic processing equipment for riser drilling and packaging. The automatic processing equipment comprises a drilling mechanism, a paper feed mechanism, a sealing mechanism and a cutting mechanism, wherein drilling is performed on a riser through the drilling mechanism, during drilling, the paper feed mechanism is driven by the drilling mechanism to feed packaging paper, besides, the sealing mechanism is driven by the drilling mechanism to cover the packaging paper output from the paper feed mechanism on the riser, and butt joint sealing of two side edges of the packaging paper is realized; and the cutting mechanism is driven by the drilling mechanism to automatically cut the sealed packaging paper. The technical problem of automatic drilling and packaging of the riser is solved, the consistency of riser drilling is guaranteed, and the working efficiency of riser packaging is improved.

The invention relates to a foreign matter insertion prevention socket for children. The foreign matter insertion prevention socket comprises a coiling mechanism, an electric wire coiling mechanism, aninsertion prevention panel mechanism and a power strip connecting mechanism; the coiling mechanism comprises a bottom shell, a lock catch, a turntable and a coil spring; the bottom shell is providedwith a lock catch, and the lock catch can lock the pulled-out electric wire; and one end of the coil spring is fixedly connected with a connecting column on the upper end face of the bottom shell, theother end of the coil spring is fixedly connected with an inner arc of the rotary disc, and wire contraction can be achieved through pre-tightening and loosening of the coil spring. The turntable isrotationally connected with the upper end surface of the bottom shell, the electric wire coiling mechanism is fixedly mounted in the turntable, the lower end surface of the anti-insertion panel mechanism is fixedly connected with the upper end surface of the power strip connecting mechanism, the lower end surface of the power strip connecting mechanism is fixedly connected with the upper end surface of the bottom shell, the electric wire coiling mechanism can realize coiling of electric wires, the anti-insertion panel mechanism can prevent a conductive object from being inserted, and the powerstrip connecting mechanism is matched with the anti-insertion panel mechanism for use.

The invention discloses a multimedia system with an intelligent lifting function. The system involves a shell and a multimedia display mechanism; the top of the shell is open, the peripheral face andbottom face of the shell form a sealing structure, and a lifting mechanism is arranged inside the shell; the multimedia display mechanism comprises a base and a top plate, the base is connected with the lifting mechanism, and the cross section of the base and the cross section of the top plate are provided with outline shapes matched with the cross section of the shell; and the base can freely enter and exit from the shell through the top of the shell, and the top plate can seal the top of the shell. The multimedia system with the intelligent lifting function is simple and reasonable in structure and convenient to install and use; the multimedia system has excellent waterproof performance, and automatic contraction can be achieved during rainfall, so that it is guaranteed that the multimedia display mechanism cannot be invaded by rainwater; and the provided display mechanism can achieve the purpose of accurately advertising, so that the multimedia system is worthy of large-area popularization and application.

The invention discloses a net for intercepting hairy shrimp at a water intake of a coastal nuclear power plant, comprising: several mesh bags and a collection bag arranged at the tail of the mesh bags; several mesh bags are arranged side by side, and adjacent mesh bags cooperate with each other connected, the end of the mesh bag is provided with a mesh port, one side of the edge of the mesh port is provided with a sinker ring, and a number of buoys are arranged on the side symmetrical to the sinker ring at the edge of the mesh port; any There is at least one inner bag inside the mesh bag, and when there are multiple inner bags, the plurality of inner bags are distributed at intervals along the direction from the mesh mouth to the collection bag, and both the mesh bag and the inner bag are arranged There are several mesh holes, and the mesh size of the plurality of inner bags is distributed in a gradient along the direction from the mesh mouth to the collection bag; at least one pull rope is arranged on the mesh bag, and the pull rope is used to fix the mesh bag, At least one floating ball is arranged on the collection bag.

The invention provides a device for installing and locating a connection box of a photovoltaic assembly. The device comprises a base and N locating mechanisms; the base is in a cuboid shape and is hollow inside, and one end of the base is provided with an opening; the N locating mechanisms are laminatedly arranged inside the base and are slidingly connected to the base; the ends of the N locating mechanisms are movably connected with a closed end of the base; the front ends of the N locating mechanisms are arranged inside the base and are not in contact with the opening end of the base. The locating mechanisms of the invention comprises multiple daughter boards with different kinds of notches; furthermore, the upper surface of the base is provided with card holes with which the distance between daughter boards can be adjusted; and therefore not only the installation and locating function can be realized, inclination installation which may affect the quality is prevented, but also the device can be used in installation of connection boxes with different shapes so that the production flexibility and production efficiency can be greatly increased; and the device is sleeved by springs so that automatic retraction can be realized.