64results about How to "Rich structure and function" patented technology

The invention discloses a tissue engineering cartilage and a preparation method thereof. The tissue engineering cartilage is cytoactive, consists of sequentially laminated cell patches including a surface layer, a middle layer, a deep layer and a calcified layer, and takes collagen matrix as a main component; the layers are compounded by collagen and hyaluronic acid, and the bordering integration of various layers of cartilage structures is promoted through hydrostatic culture; and the tissue engineering cartilage is prepared by preparing various layers of cartilage cell patches and assembling multiple structural layers. The prepared tissue engineering cartilage is in a layering arrangement of a natural cartilage, has a very good tissue structure and very good mechanical properties (frictional coefficient is 75-85 percent that of a natural cartilage tissue, and the elastic modulus is 80-90 percent that of the natural cartilage tissue.); the integration between different layers is good; experiments prove that the prepared tissue engineering cartilage can form the tidal line same as that of a normal cartilage tissue and has the same layering structure; and the prepared tissue engineering cartilage is capable of promoting regeneration and function recovery of a cartilage and obviously shortening the cycle of cartilage damage treatment and is applicable to cartilage defect restoration for a load-bearing part of a articular cartilage.

The invention relates to an intelligent energy-saving thermostat. The intelligent energy-saving thermostat is characterized by comprising a central processing unit (CPU) with an ARM framework chip, a touch screen display and other printed circuit motherboard and hardware which are provided with functions of a tablet personal computer as well as further comprising a sensor module, a temperature detection module and a temperature control output module which are needed by the thermostat and a storage module, a power module and an epitaxial device access module. The sensor module, the temperature detection module, the temperature control input and output module, the power module and the epitaxial device access module are all controlled by the central processing unit with the ARM framework chip as well as are communicated with other hardware such as a display module and a camera module of the tablet personal computer. The hardware of the thermostat is provided with an Android operating system and the temperature control function is achieved through the application software (APP). The intelligent energy-saving thermostat is initially designed on base of the hardware of the tablet personal computer with the ARM framework chip and operates the Android operating system, so that the intelligent energy-saving thermostat can have more powerful functions on aspects of intelligent control, air conditioning energy saving, remote control, multimedia information push, control instruction push, software and firmware update of products after sale and the like than a traditional thermostat with single chip and an intelligent home controller.

The invention discloses a full-automatic high-speed manufacturing method and a full-automatic high-speed manufacturing device of a metal packaging tank body and aims to solve the defects that machining requires many devices, automation degree is poor, operation efficiency is low, manufacturing cost stays at a high level and manufacturing quality is not high in the prior art. The technical scheme is characterized in that during automatic gradual conveying, the bottom opening edge of the metal tank body is rolled and flanged automatically in a first workstation, so that the opening edge can flange outwards, a metal tank bottom plate is additionally mounted at the bottom opening of the metal tank automatically in a second workstation to obtain the metal tank body, and the metal tank is overturned automatically in a third workstation, so that the tank bottom faces downwards and the opening faces upwards; the tank wall of the metal tank body is expanded automatically in a fourth workstation to be inclined outwards, the top opening edge of the metal tank body is automatically rolled and flanged in a fifth workstation, the top opening edge is overturned outwards, limit rings are automatically machined and stacked on the upper portion of the metal tank body automatically in a sixth workstation, the top opening edge of the metal tank body is outwards flanged, and accordingly, the manufacturing of the metal tank body is completed.

The invention discloses a unitized combined and assembled type egg welfare breeding cage, and belongs to the technical field of livestock machines. The cage comprises supporting legs, a pipe frame, a surface net, perch frame columns, perch bars, a movable door, a manual meadow, a manure scraper, a roller shaft, a manure removal belt, a frame layer, a rolling piece, an egg rolling piece, synchronous teeth, an egg collecting belt, a nipple water drinking device, an egg baffle, a trough, a water drinking pipe, an egg laying box body, a connection pin, an interlayer door and an egg conveying channel. The cage can provide functions of egg collecting, conveying, eating, perching, frame connecting and the like. The cage is complete in structural function, can meet welfare habit behaviors of laying hens such as grabbing for rest, scratching and laying in the cage, can also meet the production requirements for automatic manure removing, egg collecting and the like, and greatly improves the welfare breeding level of laying hens; due to the modularized producing, manufacturing and assembling mode, multiple cages can be connected and assembled, the device manufacturing and investment cost is reduced, the space occupation of a single hen is further increased, and the cage conforms to the development tendency of industrial welfare breeding.

The invention discloses an artificial fish reef in a steel-frame structure and aims to overcome the defects that an existing artificial fish reef is single in shape and function and low in economical benefit, is easy to block if being used in sea for a period of time, is adverse to gathered life of a fish school, and the artificial fish reef under the sea is relatively poor in stability and easy to swing to affect life of the fish school. The artificial fish reef in the steel-frame structure disclosed by the invention comprises an algae culture matrix and a fish reef matrix, wherein the lower end of the fish reef matrix is fixedly connected with a steel rack and the algae culture matrix is connected with an impact ball for impacting the fish reef matrix; high pressure gas for flushing a fish sheltering cavity is arranged on the fish reef matrix; the impact ball triggers a resilient mechanism to cut a gas cover, so that high pressure gas escapes to flush the fish sheltering cavity so as to prevent the fish sheltering cavity from being blocked. The artificial fish reef not only can provide a place for the fish school to inhabit, reproduce and shelter enemies, but also can be used for cultivating algae, so that the artificial fish reef is high in economical benefit. The artificial fish reef put in use is good in stability, and the fish sheltering cavity in the fish reef matrix is hardly blocked.

The invention provides an integrated naked-eye 3D display double-screen multifunctional advertisement machine system. The system comprises a naked-eye 3D display screen, a 2D liquid crystal display screen, network multimedia play equipment and a naked-eye network advertisement picture and text distribution system. The system has a diversified display method, can display 2D contents and naked-eye 3D contents, and enables a person to be able to watch a three-dimensional picture without wearing professional 3D glasses. The system also can provide a double-screen display mode module, and the upper and lower screens can achieve the independent display or the customized display of correlated contents. The system also can provides a network real-time distribution module, and carry out the management of the play contents through a server side and content distribution and program control of each client naked-eye 3D advertisement machine. A client receives an instruction sent by the server side, and carries out the playing according to the requirements. A double-screen touch control advertisement machine is diversified in structure function, and the play content is more attractive to the migrant population, enlarges the view field of the audience, meets the demands of an advertiser, and is suitable for the high-speed development of the society.

The invention provides a point pouring gate injection mould capable of automatically pushing out condensed materials. The point pouring gate injection mould comprises a fixed mould seat plate, a pouring gate removing plate, a split-flow channel plate, a fixed mould plate, a movable mould plate and a movable mould seat, wherein a first fixed-distance pull rod which is connected by using a hole shaft structure is arranged between the fixed mould plate and the movable mould seat; a second fixed-distance pull rod which is connected by using the hole shaft structure is arranged between the fixed mould seat plate and the movable mould seat; one part of the second fixed-distance pull rod, which corresponds to the fixed mould seat plate and the pouring gate removing plate, is fixedly provided with a fixed-distance sleeve; a separation compression spring for expanding the pouring gate removing plate and the split-flow channel plate is fixed on the second fixed-distance pull rod; pull rod through holes which are communicated with each other are arranged in the fixed mould seat plate and the pouring gate removing plate corresponding to each point pouring gate; each pull rod through hole is internally provided with a material pull rod and a reversed-tapered end of each material pull rod stretches into a split-flow channel in the split-flow channel plate; and a guide column which is connected by using the hole shaft structure is arranged between the fixed mould seat plate and the movable mould seat. The mould can be mounted on a horizontal injection machine, has the advantages of complete structure functions and reliable movement, prevents the appearance of a molded piece from being damaged to greatest extent, and can easily realize automatic and efficient injection production.

The invention discloses an intelligent sickbed which is based on control of a control system. The sickbed comprises a sickbed body and a bed board, and the sickbed body is provided with an automatic excrement collecting device and an automatic cleaning device which can work automatically under the control of the control system. An opening is formed in the portion, under the hips of a nursed person, on the bed board. The automatic excrement collecting device is arranged below the bed board and is located under the opening. The automatic cleaning device is arranged above the automatic excrementcollecting device. The sickbed is more intelligent, more complete in function and capable of effectively reducing the labor intensity of nursing personnel. The sickbed is suitable for any patient incapable of taking care of himself or herself.

The invention discloses a smooth artificial fish reef structure and aims to settle the defects of single function, relatively low stability after coming into service, easy shake, incapability of facilitating aggregated living of fish swarms and easy blockage in an existing artificial fish reef. The smooth artificial fish reef structure comprises an alga culturing substrate and a fish reef substrate. A pulling rope and a mesh bag are connected between the alga culturing substrate and the fish reef substrate. The alga culturing substrate is connected with impact balls which are used for impacting with a fish reef substrate. The fish reef substrate is provided with high-pressure gas which is used for flushing a fish sheltering chamber. The impact balls trigger a rebound mechanism. The rebound mechanism cuts a gas cover open. The high-pressure gas is discharged for flushing the fish sheltering chamber, thereby preventing blockage of the fish sheltering chamber. The artificial fish reef can become a place for inhibiting, breeding, bait acquiring and sheltering for the fish swarms, and furthermore can be used for culturing the alga. The fish sheltering chamber in the fish reef substrate after coming into service are not easily blocked. Furthermore high stability, high reliability and small vibration amplitude of the artificial fish reef after being input into sea are realized. Furthermore the artificial fish reef facilitates aggregated living of the fish swarms.

The invention discloses a plant growth machine which comprises a cabinet, a plurality of planting plates, a nutrient solution supply system, a carbon dioxide supply system, a lighting system, an atomization system and a control system, wherein the planting plates are arranged in the cabinet in a layered shape and are used for fixing and growing of plants; the nutrient solution supply system is arranged in the cabinet and is used for providing nutrition for the plants; the carbon dioxide supply system is sued for supplying carbon dioxide to plant growth; the lighting system is arranged in the cabinet and comprises a red light generator, a blue light generator and a white light generator, and the proportion of the red light, the blue light and the white light is adjusted according to different stages of the plant growth so as to achieve the best lighting effect; the atomization system is arranged in the cabinet and is used for atomizing nutrient solutions to be absorbed so that plant roots and branches and leaves can absorb the nutrient solution exposed in the air; the control system is used for controlling the nutrient solution supply system, the carbon dioxide supply system, the lighting system and the atomization system to work. The plant growth machine is complete in structural function and capable of providing an efficient growing environment for the plants. The plant growth machine has great economical benefits.

The invention relates to a fodder feeding cart, aiming to solve the technical problems that a similar fodder feeding device in the prior art is high in manufacturing cost and inconvenient to stir and feed. The fodder feeding cart is characterized in that pushers are arranged on one side of a frame of the fodder feeding cart, a charging barrel is arranged on a stop plate of the frame in a manner of inclining from the barrel opening to the barrel bottom, the barrel bottom of the charging barrel is located on the pushers side of the frame, and a stirring rod is arranged inside the charging barrel; the outer diameter on the barrel opening side of the charging barrel is hinged to the frame through a barrel ear and a bolt, a discharge hole is formed in the bottom of the charging barrel on the barrel bottom side, and the discharge hole is connected with a lower discharge hole formed in the pushers side bottom of the frame through a discharge valve and a corrugated hose; one end of a screw rod serving as the stirring rod inside the charging barrel hermetically extends out of the charging barrel through a rod sleeve to be connected with a larger rocker; fodder is fed through the barrel opening of the charging barrel, stirred evenly by manually swinging the larger rocker, and fed by turning over the charging barrel or discharged through the discharge hole. The fodder feeding cart is reasonable in structural design, convenient to use, low in production cost, versatile in function and use method and applicable to stirring and feeding of dry and wet fodder.

The invention discloses a rotary drilling rig and a power head carriage thereof. The power head carriage of the rotary drilling rig comprises a carriage body, an oil cylinder seat plate is fixed at the top of the carriage body, a detachable lifting pulley is mounted on the upper portion of the carriage body, and a detachable lay-down pulley is mounted on the lower portion of the carriage body. The oil cylinder seat plate used for fixing a pressurizing oil cylinder is arranged on the carriage body and the detachable lifting pulley and lay-down pulley are mounted, so that the carriage has a double-pressurizing structure and can pressurize by the pressurizing oil cylinder and a pressurizing steel wire rope as well, and the rotary drilling rig is multifunctional, applicable to pressurizing of carriages of various rotary drilling rigs and wide in application range.

The invention mainly provides a hydraulic brake controller. The brake sensitivity can be conveniently adjusted by the aid of the hydraulic brake controller. The hydraulic brake controller is characterized in that a main cylinder is provided with a first oil return hole corresponding to a reciprocating stroke of a piston, the first oil return hole is connected to oil storage space, and an adjusting screw which extends into the first oil return hole is arranged on a main controller body in a screwed manner. The hydraulic brake controller has the advantages that the speed of hydraulic oil flowing back to the oil storage space can be controlled by means of simply changing the extension degree of the adjusting screw which extends into the oil return hole, accordingly, the duration when brake force of the piston completely acts on a brake pad via the oil return hole can be prolonged or shortened, and the purpose of conveniently adjusting the brake sensitivity is achieved.

The invention provides an artificial fish reef facilitating placement and aims to solve the problems that conventional artificial fish reefs only have a single structure and function, are not easy to place, and are liable to blockage after being placed for use. The artificial fish reef comprises a seaweed cultivation base body and a fish reef base body. A pull rope and a net bag are connected to the seaweed cultivation base body and the fish reef base body. A plurality of lifting rings are arranged on the upper end of the fish reef base body. The lower end of the seaweed cultivation base body is provided with a plurality of pulling hooks corresponding to the lifting rings one to one, and the pulling hooks can be corroded by sea water easily. The lifting rings are connected to the pulling hooks. The seaweed cultivation base body is internally provided with an air inlet cavity body and a plurality of piston cavities communicated with the air inlet cavity, and the fish reef base body is internally provided with a fish shelter cavity leading to the outer wall. The seaweed cultivation base body is provided with a plurality of installing grooves in the lower surface and striking balls are fitted in the installing grooves. The striking balls are connected to the bottom surfaces of the installing grooves via hanging ropes which can be corroded by sea water easily. The striking balls are connected with limiting ropes, and the lower ends of the limiting ropes are connected with pulling rings which are movably connected to the pull rope in a sleeving manner.

The invention discloses a fabricated subway station platform. The fabricated subway station platform comprises side joists, a middle joist, side platform plates and a middle platform plate. The prefabricated edge joists and the prefabricated middle joist are fixed to the ground through expansion bolts, and the side platform plates and the middle platform plate are fixed to the corresponding side joists or the corresponding middle joist through field drilling and bar planting. The fabricated subway station platform has the following advantages: the structure is simple, the weight of a single piece is light, and transportation and installation are convenient; structural functions are complete, other professional work amount is reduced, and the construction speed can be increased; and a plateand beam fixing device is free of maintenance, durability is improved, all components are modularized, length and width adjustment is facilitated, factory production is facilitated, and the plate andbeam fixing device has high adaptability to different environments.

The invention discloses an assembling type bay window structure and relates to the technical field of the building industry. The assembling type bay window structure comprises a bay window frame formed by connecting transverse rods and vertical rods which are crossed longitudinally and transversely; an upper table plate and a lower table plate are installed on the bay window frame, and are horizontally arranged, and an upper area, a middle area and a lower area are divided in the bay window frame; an air conditioner outdoor unit can be placed in the upper area and the lower area, and the outersides of the upper area and the lower area are each provided with a blind window; a glass window is installed on the outer side of the middle area; the bay window frame is provided with a connectionstructure used for anchoring the bay window frame onto a room beam; after the bay window frame is anchored to the room beam, the upper table plate is lower than a ceiling of a room, and the lower table plate is at least higher than a floor of the room by 0.35 m. The bay window structure is very easy and fast to install, and the construction period can be shortened easily.

The invention discloses a preying-facilitated artificial reef which aims for settling defects of single functions, inconvenient preying of fish swarms at a reef position and easy blockage after an existing artificial reef comes into service. The preying-facilitated artificial reef comprises an alga culturing substrate and a reef substrate. A pull rope and a mesh bag are connected between the alga culturing substrate and the reef substrate. The alga culturing substrate is connected with impact balls which are used for impacting with the reef substrate. The reef substrate is provided with high-pressure gas which is used for flushing a fish sheltering chamber. The impact balls trigger a rebound mechanism. The rebound mechanism cuts a gas cover to open. The high-pressure is discharged and flushes the fish sheltering chamber, thereby preventing blockage of the fish sheltering chamber. The artificial reef can provide a place for inhibition, breeding, baiting and sheltering for fish swarms and furthermore can be used for culturing the alga, thereby realizing convenient preying of the fish swarms. After the artificial reed comes into service, blockage of the fish sheltering chamber in the reef substrate does not easily occur, thereby facilitating aggregation of the fish swarms.

The invention discloses a sedimentation type artificial reef structure which aims for settling defects of single function, easy blockage after use for a certain time period, and incapability of promoting gathering living of a fish swarm in an existing artificial reef. The sedimentation type artificial reef structure comprises an alga culturing substrate and a reef substrate. A pull rope is connected between the alga culturing substrate and the reef substrate. The alga culturing substrate is connected with impact balls which are used for being impacted with the reef substrate. The reef substrate is provided with high-pressure gas for flushing a fish sheltering chamber. The impact balls trigger a rebound mechanism. The rebound mechanism cuts an air cover to open. The high-pressure gas is discharged for flushing the fish sheltering chamber, thereby preventing blockage of the fish sheltering chamber. The sedimentation type artificial reef structure can provide a place for inhibition, breeding, baiting and sheltering of fish swarms and furthermore can be used for culturing alga, thereby realizing high economic benefit. The fish sheltering chamber in the reef substrate are not easily blocked after coming into service.

The invention discloses an intelligent manhole cover capable of providing fault alarm and positioning. The novel intelligent manhole cover capable of providing the fault alarm and the positioning comprises a manhole cover body, a top cover and a boss, the manhole cover body is composed of the top cover and the boss, a plurality of fixing holes and water leakage holes for convenient fixing and drainage are formed in the top cover, the top cover is provided with a pattern to increase the friction of the top surface of the manhole cover body, the bottom of the top cover is provided with the boss,the bottom surface of the boss is provided with a boss end cover, the boss end cover is opened to repair or replace the components in the boss, a heat dissipation groove for heat dissipation are formed in the bottom surface of the boss, the boss is internally provided with a GPS positioning system, a pressure sensor, a temperature sensor, a processor and a battery, when the pressure of the manhole cover body reaches a limit, short-circuit occurs caused by the water leakage or the temperature is high, a processing system transmits the critical signal to a monitoring unit, and the position of the manhole cover body is detected by the GPS positioning system, which facilitates timely maintenance and repair; in short, the cover has perfect structure and functions, accurate positioning and convenient maintenance, and is suitable for popularization and use.

The invention relates to automatic integrated equipment of ferrite. The automatic integrated equipment comprises a charge coupled device (CCD) shooting region, a material strip corrector, a magnet sheet recycling box, a baffle limitation block, a magnet sheet transmission belt, a magnet sheet grabbing suction disc, a grabbing manipulator, a desktop robot, two dust removal air blowing heads, two composite roller seats, a material strip corrector, an X-direction grinding roller mechanism, a trimming and stripping mechanism, an air cylinder pressure regulator, a Y-direction grinding roller mechanism, a slicing mechanism, a photoelectric inductor, a thickness induction sensor, an automatic top material box and a finished product recycling box. By the automatic integrated equipment, a series ofoperation such as loading, transmission, dust removal, lamination induction, initial check, unfavorable product recycling, material taking, CCD shooting, angle adjustment, single- and double-side adhesive wrapping, X-direction grinding, Y-direction grinding, trimming, stripping, secondary combination, slicing, finished product discharging and recycling and the like on a ferrite magnet sheet can be automatically performed, the automatic integrated equipment is high in automation, intelligent control degree, processing efficiency and yield and is very convenient to use.

The invention provides a shock absorption device of a multifunctional child scooter and belongs to the technical field of child toys. The shock absorption device solves the problems that an existing scooter is too complex in structure and single in use function. The shock absorption device of the multifunctional child scooter is mainly characterized in that shock absorption seats are fixedly arranged at the two ends of a rotary shaft, each shock absorption seat comprises a cylindrical base, a shock absorption barrel is fixedly arranged on each cylindrical base, the outer cylindrical face of each cylindrical base is fixedly provided with a connecting sleeve which is perpendicular to the outer cylindrical face of the cylindrical base and used for connecting one end of the rotary shaft, the shock absorption seats are fixed to the rotary shaft through the connecting sleeves, a front fork is sleeved with the shock absorption barrels, springs are arranged between the front fork and the shockabsorption barrels, one end of each spring elastically abuts against the lower end face of the front fork, and the other end of each spring is fixed to the inner bottom face of the corresponding shock absorption barrel. The shock absorption device is simple and ingenious in structural design, safe and beautiful, the height of an upper round pipe and the height of a lower round pipe can be adjusted, and use is convenient.

The invention discloses a multifunctional CT detection platform device. The multifunctional CT detection platform device comprises a small workpiece turnplate, an annular host detection platform, a fixed conveying roll and a small conveying roll. Transverse and longitudinal movement of the small workpiece turnplate is adjusted, the lifting height of a motor turnplate is adjusted, a workpiece is placed, the height of a receiver holder in the annular host detection platform is adjusted in a driving manner to achieve an optimum detection distance, an annular gear rail is driven to rotate by controlling an annular driving gear motor in the annular host detection platform so as to drive a ray machine and a receiver which are mounted on the annular gear rail to rotate, and the ray machine and the receiver start working synchronously to complete an X-ray CT scanning detection process of the workpiece. The multifunctional CT detection platform device can detect various small workpieces, long plates and pipe workpieces, so that the detection range is widened; the multifunctional CT detection platform device not only improves the detection effect, but also greatly reduces the economic cost of equipment while the production efficiency is greatly improved; the multifunctional CT detection platform device is suitable for wide popularization.

The invention discloses a multifunctional airplane teaching model and a manufacturing method thereof. The multifunctional airplane teaching model comprises a fuselage, wings and empennages, the wingsare connected with the fuselage through wing sweepback structures, a horizontal empennage is connected with an upper part of a tail end of the fuselage through a horizontal empennage adjusting structure, and a vertical empennage is connected with the tail end of the fuselage through a vertical empennage slide rail slide block structure; the wing sweep changing structure is used for realizing sweepchanging of the wings of the airplane, the horizontal empennage adjusting structure is used for realizing full-motion change of the horizontal empennage, the vertical empennage slide rail slide blockstructure is used for realizing single-double transformation and V-shaped change of the vertical empennage, a slide block connecting rod structure is used for realizing folding and unfolding of the canard wing, and multiple operations such as sweep changing of the wings of the airplane, folding and unfolding of the canard wing, full-motion change of the horizontal empennage, single-double transformation and V-shaped change of the vertical empennage can be realized on a multifunctional airplane teaching model; and the model has the features of being convenient to use, diversified in structureand function, and simple to operate.

The invention provides a lifting device of a mobile toilet bowl for children, and belongs to the technical field of toys for children. The lifting device solves the problems that existing sliding carsare too complicated in structure and monotonous in use function. The lifting device of the mobile toilet bowl for the children is mainly characterized in that four columns are arranged at the lower portion of a device body, and a second motor is fixedly and vertically arranged on each column downwards; upper connection parts of wheels are fixedly provided with sleeves with inner threads, main shafts of the second motors penetrate into the sleeves, the outer walls of the main shafts of the second motors are provided with outer threads matched with the inner threads, and the main shafts of thesecond motors are in threaded connection with the sleeves. The structural functions of the mobile toilet bowl for the children are improved through the lifting device, the structural design is simpleand ingenious, the mobile toilet bowl is attractive, hygienic and convenient to use, and the sliding height can be adjusted.

The invention discloses a multifunctional water inlet connecting pipe for a diesel engine. The multifunctional water inlet connecting pipe for the diesel engine comprises a first branch flow channel,a second branch flow channel, a water inlet header pipe, an EGR cooler support and multiple water taking joints; one end of the first branch flow channel is provided with a first water outlet connecting port, and the other end is a first water inlet connecting port; one end of the second branch flow channel is provided with a second water outlet connecting port, and the other end is a second waterinlet connecting port; one end of the water inlet header pipe is connected with the first water inlet connecting port of the first branch flow channel and the second water inlet connecting port, andthe other end of the water inlet header pipe is a water inlet; the EGR cooler support is of a rectangular structure, is arranged at the top of one end of the first branch flow channel and the top of one end of the second branch flow channel and comprises multiple threaded hole lugs. According to the multifunctional water inlet connecting pipe for the diesel engine, through integrated design of theEGR cooler support function, supporting and fixing of an EGR cooler can be guaranteed while the cooling water flow of the engine is guaranteed effectively, the engine can meet China 6 emission requirements, and meanwhile, the performance and the reliability of the engine are improved.

The invention relates to a multilayer heat insulation plastic steel greenhouse, which is characterized in that a steel purlin is defined into an arch shape to form a single arch-shaped steel purlin, the two ends of the single arch-shaped steel purlin are connected onto a base, a plurality of single arch-shaped steel purlins are ranged in parallel at intervals and are respectively and fixedly arranged on transverse steel purlins, the single arch-shaped steel purlins are fixedly arranged on one or a plurality of transverse steel purlins to form an outer steel purlin framework, a plastic film or tarpaulin covers the outer steel purlin framework, a layer of arch-shaped steel purlin frame is at least arranged in the single arch-shaped steel purlin, a plastic sectional material is arranged on each layer of arch-shaped steel purlin frame to form a steel purlin slideway, and each single arch-shaped steel purlin is fixedly connected with the corresponding steel purlin slideway at intervals by a plurality of support frames. The multilayer heat insulation plastic steel greenhouse has the advantages that the structure is reasonable, the framework is firm, the layered covering closing is adopted, the film pulling and closing are convenient, films can be pulled out for sunlight transmission, the films are closed at night for heat insulation, light transmission, ventilation and heat insulation are integrated, the multilayer films are pulled for covering, each layer of film can be automatically opened or closed, the light-transmission and heat insulation planting or cultivation greenhouse is formed, the sunlight absorption and temperature maintaining effects and the harvesting of the greenhouse are improved, and the multilayer heat insulation plastic steel greenhouse is applicable to arch greenhouses, winter warm greenhouses and other greenhouses, and belongs to an ideal special device for a layered closing structure of the planting and cultivation greenhouses.

The invention provides an automatic telescopic device of a multifunctional child scooter and belongs to the technical field of child toys. The automatic telescopic device solves the problems that an existing scooter is too complex in structure and single in use function. The automatic telescopic device of the multifunctional child scooter is mainly characterized in that a round connecting board isfixedly arranged in an upper round pipe, an air cylinder is arranged in a lower round pipe, an air cylinder body of the air cylinder is fixedly connected to the inner portion of the lower round pipe,an air cylinder rod of the air cylinder extends into the upper round pipe, the extend-in end of the air cylinder rod is fixedly connected to the round connecting board, an inward-retracting opening ring turned inside from outside is arranged in the position of an upper pipe opening of the lower round pipe, an outward-retracting opening ring turned outside from inside is arranged in the position of a lower pipe opening of the upper round pipe, and the outward-retracting opening ring is located in the lower round pipe and clamped on the inward-retracting opening ring. The automatic telescopic device is simple and ingenious in structural design, safe and beautiful, the height of the upper round pipe and the height of the lower round pipe can be adjusted, and use is convenient.

The invention provides a pull device of a mobile closestool for children, and belongs to the technical field of children's toys. The pull device solves the problem that an existing walker car is too complex in structure and monotonous in use function. In the pull device of the mobile closestool for children, sliding tracks are symmetrically arranged on the inner wall of a body and located at the two edges of an opening of the body respectively, two turnup sliding rails are arranged at the edges of two long sides of an open bowl in the length direction of the open bowl respectively, and the turnup sliding rails are slidingly connected in the sliding tracks correspondingly; a side wall plate capable of sealing a clamping opening is arranged at the rear end of the open bowl, and a hand pull opening used for pulling the open bowl out of the clamping opening is formed in the side wall plate. The pull device is simple and ingenious in structural design; children can use the mobile closestoolat any time when playing outdoors; the pull device is attractive, sanitary and convenient to use.

The invention discloses a safety protection device based on high-voltage electric power engineering operation in the technical field of electric power engineering, which comprises a first frame and a second frame, a first battery box and a second battery box are arranged on one side surface of the top end of the first frame, a connecting plate is arranged on the rear end surface of the top end of the second frame, and a threaded bulge is arranged at the top end of the first frame. A connecting rope is arranged on one side of the threaded protrusion, a threaded cap is arranged at one end of the connecting rope, an embedded block is arranged on one side of the first frame, a hole block is arranged on one side of the embedded block, a bottom plate is arranged at the bottom of the first frame, and a long box is arranged at one end of the first frame and one end of the second frame and located above the bottom plate. When the protective device is used, the protective device can be changed according to the size of a protective field, the application range is wide, storage is convenient, meanwhile, the stability of the protective device is good, shaking is not prone to occurring, and follow-up use is facilitated; according to the arrangement structure, the functions are diversified, the warning effect and safety are high, and potential safety hazards are reduced to the minimum.