53results about How to "Easy to replace if damaged" patented technology

The invention discloses a cylindrical composite material bridge anti-collision device which comprises an anti-collision unit (1), wherein the anti-collision unit (1) is composed of a cylindrical body (2) and a filling material body (3) filled in the cylindrical body (2); the anti-collision unit (1) comprises straight cylinder shaped anti-collision members (4) and bended cylinder shaped anti-collision members (5); nonadjacent straight cylinder shaped anti-collision members are connected in series or in parallel through connecting rods (6) to form a strip-shaped anti-collision device; adjacent and mutually connected straight cylinder shaped anti-collision members (4), the straight cylinder shaped anti-collision members (4) and the bended cylinder shaped anti-collision members (5), or the bended cylinder shaped anti-collision members (5) are fixedly connected by adopting bolts (8) through a flange (7) arranged on the cylindrical body (2) to form a cyclic or C-shaped anti-collision structure; and a moving device (9) is arranged at the inner side of the anti-collision unit (1). The cylindrical composite material bridge anti-collision device, disclosed by the invention, has the advantages of a simple structure, low cost, easy installation and maintenance, strong self-floating capability, good buffering performance and low modulus of elasticity.

The invention relates to a bridge anti-collision device of a composite material, which is characterized in that the bridge anti-collision device of the composite material is in a bar-shaped structure or an annular structure which is matched with the shape of a bridge, wherein the bar-shaped or annular structure is at least provided with an anti-collision unit (10) or at least comprises one anti-collision unit (10) and one connecting rod (12). The two adjacent anti-collision units (10) which are mutually connected are connected by a flange (4) and a bolt (5), and the connecting rods (12) are installed at both ends of one anti-collision unit (10) or are installed between the two anti-collision units (10) which are adjacent but not connected with each other so as to form the annular structure; each anti-collision unit (10) comprises a casing (11), a filling material (3) filled in the casing (11) and a canvas bag (7) which is installed at one side of the casing and is filled with a buffering material (6), the canvas bags (7) are connected with the casings (11) by pull ropes (8), anti-collision handrails (9) are also connected on the casings (11), and the casings (11) are also solid casings of the composite material or are in a structure comprising two layers of internal and external composite material surface layers (1) and a sandwich material (2). The invention has low cost, good anti-collision performance, greenness and environmental protection.

The invention relates to a pigging object emitter. The pigging object emitter comprises a control valve and a storage cylinder. A one-way valve is arranged in a pipe; a one-way valve is arranged is arranged in a bypass branch pipe communicated with the pipe; and the one-way valves are connected with the storage cylinder. A plurality of pigging objects are arranged in a cavity of the storage cylinder. A riser pipe communicated with the storage cylinder is arranged on the upper part of the storage cylinder in the perpendicular direction; a cover plate is arranged on the upper part of the riser pipe; a gasket is arranged between the cover plate and the riser pipe; and the cover plate and the riser pipe are connected into a whole through a screw. The cover plate is provided with a plurality of keyway threaded holes; and a plurality of rapid rotating pins penetrate into the storage cylinder through the keyway threaded holes and are fixed. A one-way valve is connected between the storage cylinder and the pipe; and a pigging object emitter circuit is formed through the connections. The pigging object emitter has simple operation and easy part replacement, cleans the pipe during the production process, reduces the possibility of underwater leakage, and greatly reduces the equipment cost. The application range of the pigging object emitter is extended from land to underwater areas including deep water areas and ultra-deep water areas.

The invention discloses a composite material floating type net-shaped interception system and a construction method. A primary buoy, a lateral buoy, a secondary buoy and a small buoy are manufactured through a vacuum infusion one-time forming technology by means of fibers and resin and are connected through cables which are adjacent to one another and connected, then the relative positions of the buoys are determined through ultra-high-molecular-weight polyethylene nylon cables via anchors, the buoys are fixed to a riverbed, a pair of floating type net-shaped interception systems are symmetrically arranged on the two sides of a pier so that ships can be interrupted or poked to steer, and the systems serve as the first defensive line for buffering collisions. When the composite material floating type net-shaped interception system is used as a composite material floating body anti-collision device, if small ships collide with a bridge tower, high deformation capacity is achieved due to the fact that section shells of the buoys are made of elastic composite materials, and the buoys can be automatically restored and not damaged after compression.

The invention discloses an atomization spray disc and a method for preparing narrow particle size alloy powder for additive manufacturing by gas atomization, and belongs to the field of powder preparation. The technical problem of low yield of preparation of narrow particle size alloy powder is solved. The atomization spray disc comprises a spray disc main body, a spray disc upper connecting bodyand a spray disc lower connecting body, wherein an annular seam is formed between the spray disc lower connecting body and the spray disc upper connecting body or an annular hole is formed in the spray disc upper connecting body. A method for preparing the narrow particle size alloy powder for additive manufacturing by gas atomization comprises the following steps that S1, fine particle size alloypowder with the median particle size of 60 micrometers or less is prepared by adopting an annular seam spray disc; coarse particle size alloy powder with the median particle size of 60 micrometers orabove is prepared by adopting an annular hole spray disc; S2, the parameters of the spray disc are determined; and S3, atomization technological parameters are determined. The method uses the atomization spray disc and has the advantages that the cost is low and the high-yield narrow particle size alloy powder is efficiently prepared.

The invention relates to a vehicle dimension automatic measurement instrument system, which comprises a portal frame, two long rails, two positioning optical gratings, a power supply cabinet, three groups of high-speed detection optical gratings and a control module, wherein the portal frame is in a rectangular shape formed by four square stripes; the two opposite square strips are mutually parallel; the two long rails are mutually parallel, and are respectively arranged at the two sides of the portal frame; a certain height is formed between the ground and the long rails; the two positioning optical gratings are respectively arranged on the corresponding long rails, correspond to each other, and are used for positioning the position of a vehicle; the power supply cabinet is positioned at one side of the long rails, and is mainly used for providing a power supply for a vehicle dimension automatic measuring instrument system; the three groups of high-speed detection optical gratings are respectively arranged on the surfaces of the portal frame and the long rails, and are used for measuring the practical outer contour data of the vehicle; the control module is connected with the portal frame and the long rails. The optical point intervals of the high-speed detection optical gratings are fine, so that the precision is high; meanwhile, the influence by external environment cannot be easily caused.

The invention relates to a frame-hiding three-glass energy-saving sound insulating window and a manufacture method thereof. The sound insulating window is characterized by comprising a flat opening window sash (1) consisting of a hollow glass inner layer and a single glass outer layer, a fixed window sash (2) and a window outer frame (3), wherein a muntin (11) needs to be arranged between the flat opening window sash (1) and the fixed window sash (2) according to design style; the hollow glass (4) is fixedly connected with the flat opening window sash (1) by a seal adhesive tape (5) and a flat opening window sash press strip (6); the single glass (7) is fixedly connected with the outer side of the flat opening window sash (1) by a double-side adhesive tape (8) and silicone structure adhesive (9); the top surface of the window outer frame (3) is in flexible embedded seal connection with a wall body (10) by a polyurethane foaming agent; and the top surface of the flat opening window sash (1) is connected with a window frame by a stainless steel sliding support (12). The invention has the advantages of firm and durable structure, tensile resistance, high shearing strength, stable quality, high noise reducing and sound insulating performance, air tightness, high watertight performance, high heat preserving performance and attractive appearance.

The invention discloses a die of a blade for an air blower, which consists of a plurality of sections of dies. The different sections of the dies are connected through a combination device, so that blades with different sizes are manufactured. The die divides a blade die into four sections, and each section comprises a plurality of options. By changing the sizes of a blade point die, a blade middle part die and a blade root die, the die can be used for manufacturing the blade with the other size from the manufacturing of the blade with one size. Meanwhile, at the beginning of a die manufacturing process, the manufacturing process of the blades with one or two sizes can be covered, and then blade assemblies with corresponding sizes can be additionally arranged according to the production demands. The die provided by the invention has the beneficial effects that the blades with the multiple sizes can be manufactured by one set of die, so that the cost is reduced; the die manufacturing space can be saved; and the die is convenient to transport.

The invention discloses a storage box. The storage box comprises a box body with an upper end and a lower end, the box body comprises side walls which are hinged to each other in sequence, the box cover is hinged to the upper end and the lower end of each side wall, and the connecting shaft is used for hinging the side wall and the box cover. The storage box, the side wall and the box cover are hinged to each other, when the storage box is not used, the box opening cover can be opened, the whole storage box can be directly folded, storage and storage are facilitated, the problem that a large amount of space is occupied when empty boxes are stored is solved, four box covers are arranged at the upper end and the lower end of the box body, the box cover at the lower end of the box body is sealed by an adhesive tape and the like, so that the box body with the bottom sealing opening is formed, objects are loaded into the box body, then the box cover at the upper end is covered, the box cover close to the inner side of the box body can be used for supporting the box cover on the outer side, and the box cover on the outer side in the stacking process is not prone to deforming and pressingobjects in the box body.

The invention provides an ocean pier system for protecting a ship body by adopting a yawing mechanism, which belongs to the technical field of overwater building safety protection. The system comprises a pier, ring fixed connection ring rib plates, a connection fixing rotating rod, a fixing nut and anti-collision rotating barrels, wherein three layers of the ring fixed connection ring rib plates are arranged on the outer ring of the pier; a plurality of anti-collision rotating barrels are arranged between every two adjacent ring fixed connection ring rib plates; barrel end plates are respectively arranged at the upper end and the lower end of the anti-collision rotating barrel; and the outermost layer of the anti-collision rotating barrel is provided with a barrel outer wall, and the innermost layer is provided with a barrel inner wall. The system has the advantages that the anti-collision rotating barrel is convenient and fast to install, a single unit is convenient to replace when damaged, the arranged anti-collision rotating barrels can effectively play a role in shock absorption and energy consumption, impact force generated by collision is reduced, and energy exchange and vibration reaction between a ship body and a pier are remarkably reduced.

The invention discloses a steel rolling workpiece cooling device, and belongs to the technical field of steel rolling cooling equipment. The steel rolling workpiece cooling device is used for coolinga steel rolling workpiece, according to the technical scheme, a base is arranged below a steel rolling conveying belt, two side protecting plates are located on the two sides of the steel rolling conveying belt respectively, the lower ends of the two side protection plates are vertically connected with the base, the upper ends of the two side protection plates are connected with the bottom of thewater tank, a plurality of drainage grooves which are arranged in parallel and are discharged downwards are formed in the steel rolling conveying belt between the two side protection plates, the innerwall of the base is fixedly connected with a flow guide tank, the upper end of the flow guide tank is opposite to a drainage groove in the steel rolling conveyor belt, the bottom of the flow guide tank is fixedly connected with the upper end of the water storage tank, the bottom of the water storage tank is connected with the water pump, the water pump is connected with the water tank through a water delivery pipe, a plurality of cooling pipes are arranged on the bottom surface of the water tank, and a plurality of high-pressure atomizing nozzles are respectively arranged on the cooling pipes. So that the quality of the product is ensured, the cooling water can be recycled, so that the utilization rate of the cooling water is improved.

The invention discloses a panel stamping die which comprises a shank, an upper die and a lower die. The upper die comprises a punch set, a punch pad block, a punch holder, an upper plate, an up striking plate and a stripper plate, wherein the upper plate of the upper die is fixed through a dowel pin and a hexagonal sink screw, and a stripping rod is arranged on the upper die; the lower die comprises a male die, a lower stripping plate, a die holder, a die set and a die pad block, wherein a lower plate of the lower die is fixed through a dowel pin and a hexagonal sink screw, and an auxiliary guide pillar is arranged on the lower die; an elastic interval is arranged between the die holder and the lower stripping plate through a spring; and an external guide pillar is arranged between the upper die and the lower die. The die has the advantages that the positioning and guide are accurate, the die is convenient to repair and modify, the processing is time and labor saving, replacement of a damaged die and change of a finished die are facilitated, and the working efficiency can be improved.

The pier fluid anti-collision device includes the main body of the pier, the main body of the anti-collision device, the anti-collision steel pipe, the protective layer, the water-permeable energy-consuming block, and the composite floating body. Composite floating body; the main body of the anti-collision device includes an inner shell, an anti-collision steel pipe, a protective layer, a water-permeable energy-dissipating block, and an external shell. The inner layer of the innermost water permeable energy consumption block is provided with an inner casing, and the outer layer of the outermost water permeable energy consumption block is provided with an outer casing. The beneficial effects of the present invention are: since the impact of small boats on the pier is generally concentrated on the water surface, when the device is in use, the composite material floating body is connected to the main body of the anti-collision device, so that the main body of the anti-collision device floats on the water surface, and the main body of the anti-collision device floats on the water surface. It automatically rises and falls, so the position of the protected pier changes with the water level.

The invention discloses a steel casing, a full casing full rotary drilling machine and a drilling method for the drilling machine. The steel casing comprises a steel casing body, gear beds, gear sleeves and fasteners. The plurality of gear beds are embedded in the pipe wall at one end of the steel casing body and provided with the gear sleeves for cutting, and the gear beds and the gear sleeves are connected fixedly through the fasteners. Each gear sleeve includes an inner gear sleeve and an outer gear sleeve, the diameter of the circle of the outer contour line of the top of the outer gear sleeve is larger than the outer diameter of the steel casing, and the diameter of the circle of the inner contour line of the top of the inner gear sleeve is less than the inner diameter of the steel casing. The full casing full rotary drilling machine includes the steel casing. According to the drilling method for the full casing full rotary drilling machine, mud is filled between the outer wall ofthe steel casing and an obstacle during the drilling process. The gap between the obstacle and the outer wall of the steel casing is greatly increased, and the penetration speed is increased. At thesame time, the gear sleeves can be replaced, the maintenance cost is reduced, and the life of the steel casing is prolonged.

The invention discloses a multifunctional numerical control system debugging and troubleshooting practical training platform capable of rapidly recovering. According to the key points of the technicalscheme, the practical training platform comprises a console and a base fixedly connected to the bottom of the console, wherein the console comprises a main body part and an embedding part; the main body part comprises a front surface end and a back surface end; the top of the front surface end is provided with a numerical control system, and the top of the back surface end is provided with a numerical control interface; a fault box is arranged at the bottom of the numerical control system on the front surface end; a driving feedback system is arranged on one side of the bottom of the fault box on the front surface end; an I / O board is arranged on one side of the driving feedback system on the front surface end; a motor system is arranged on the base, and a rotary tower type knife rest isarranged on one side of the motor system; an input terminal is arranged at the bottom of the numerical control interface on the back surface end; an embedded control sub board is arranged at the bottom of the input terminal on the back surface end; an output terminal is arranged at the bottom of the embedded control sub board on the back surface end; and a control transformer is mounted on the back of the base.

The invention discloses an electrical method monitoring device suitable for true triaxial loading, which comprises an electrode mounting plate fixed on a loading plate, and a plurality of threaded holes which are used for mounting electrode bodies and are uniformly distributed in a rectangular array are formed in the electrode mounting plate; a plurality of wire grooves used for connecting end points of the threaded holes in the same column or the same row in series are formed in the side face, attached to the loading plate, of the electrode mounting plate, and the two ends of each wire groove extend to the edge of the electrode mounting plate. By adopting the device and the method, the electrical change characteristics of the rock sample in the whole loading damage process can be monitored in an omnibearing and three-dimensional manner.

The invention provides an automatic lifting type seaborne bridge pier collision preventing device and belongs to the technical field of water building safety protection. A soft pier face adjoining anddamping protection layer is installed on the outer wall of a bridge pier. An inner ring damping soft steel cylinder is connected to the outer wall of the soft pier face adjoining and damping protection layer. An outer ring collision preventing soft steel cylinder is arranged on the outer wall of the inner ring damping soft steel cylinder. End portion ring-shaped sealing plates are arranged at theupper ends and the lower ends of the outer ring collision preventing soft steel cylinder and the inner ring damping soft steel cylinder. The end portion ring-shaped sealing plates, the outer ring collision preventing soft steel cylinder and the inner ring damping soft steel cylinder define an area. According to the collision preventing device, the inflating capacity for increasing and floating aninflating outer bag body, the filling amount for filling damping sand layers and the arrangement number of light foam aluminum structure layers are set in a matched manner and determined according tothe actual situation, it is ensured that the overall ship collision preventing device body can float on and under the water surface and automatically ascend or descend along with rising and falling of torrents, and therefore the position of protected piers changes along with the water level.

The invention discloses a suspended high-reliability side shifter for a forklift. The suspended high-reliability side shifter comprises a hanging plate assembly, a frame assembly, a side shifting oil cylinder, an upper sliding block, a lower sliding block assembly and lower hooks. The frame assembly comprises an upper guide rail assembly, side plates and a lower cross beam. The upper guide rail assembly is provided with a hooked cold-drawn section bar, and the hooked cold-drawn section bar and the upper guide rail assembly are integrally formed. The upper sliding block is arranged in a sliding mounting groove in the lower end face of the hooked cold-drawn section bar. Oil cylinder bases are arranged at the lower end of the upper guide rail assembly in bilateral symmetry. A hanging plate is connected with a cylinder block of the side shifting oil cylinder. The left end and the right end of the side shifting oil cylinder are connected with the oil cylinder bases. A combined component of the hanging plate assembly and the side shifting oil cylinder is connected with the upper guide rail assembly in a sliding mode. The rear side of the lower cross beam is in threaded connection with the lower hooks. The lower sliding block assembly is arranged between the lower cross beam and the lower hooks. A plurality of grease nipples are arranged on the lower portion of the upper guide rail assembly. The suspended high-reliability side shifter is easy and convenient to configure, convenient to disassemble and assemble, short in machining time, less in consumed material, optimized in performance and optimal in operating characteristics and durability.

The invention provides a cylindrical mobile phone, comprising a plurality of display screen modules, a functional component and an imaging component, wherein the plurality of display screen modules are sequentially connected so as to form a cylindrical shape; the functional component and the imaging component are arranged at the central part of the cylindrical structure. The cylindrical mobile phone is novel in structure and unique in cylindrical surface display way, and can meet the special display demand of consumers. The space is fully utilized, and a larger camera lens can be configured on the mobile phone with a smaller volume.

The invention relates to a friction soft steel composite damper and an assembly method thereof. The friction soft steel composite damper comprises two dumbbell-shaped members, a circular friction plate, soft steel bars and high strength bolts, and the dumbbell-shaped members comprise cylinders. Roof plates and bottom plates which are coaxial with the cylinder are arranged at the upper and lower ends of the cylinders, bolt holes are evenly formed in the peripheries of the outer sides of the roof plates and the bottom plates, the circular friction plate is arranged between the bottom plates of the two dumbbell-shaped members, and through holes are evenly formed in the periphery of the outer side of the circular friction plate. The through holes correspond to the bolt holes in the bottom plates in a one-to-one mode, and the roof plates of the two dumbbell-shaped members are connected and fixed to the upper end and the lower end of an isolation structure through the high strength bolts penetrating through the bolt holes formed in the roof plates. The soft steel bars penetrate through the through holes and the bolt holes corresponding to the through hole in the two roof plates, and thetwo dumbbell-shaped members are connected and fastened to the circular friction plate though screw nuts by both ends of the soft steel bars. According to the friction soft steel composite damper, construction is convenient, maintenance and damage replacement after an earthquake are facilitated, two kinds of energy dissipation mechanisms of yield energy dissipation and friction energy dissipation of soft steel are adopted, and the energy dissipation effect is remarkable.

The invention discloses a caulking gun with a replaceable nozzle part for building construction. The caulking gun comprises a glue tube, a piston which is arranged in the glue tube and a drive device which is connected with the piston, wherein one end of the glue tube is provided with a glue nozzle, the other end of the glue tube is fixedly connected with the drive device, the drive device is connected with the piston through a piston rod, the drive device comprises a shell and a motor and a drive roller which are arranged in the shell, the piston rod is provided with a guide groove extending in the axial direction, a fixed plate which is matched with the guide groove is also arranged in the shell, the fixed plate is arranged in the guide groove, and the glue nozzle is connected to the glue tube in a threaded way. The caulking gun has beneficial effects that the glue nozzle is connected with the glue tube in a threaded way, so that the damaged glue nozzle can be conveniently replaced; a glue outlet end of the glue nozzle can be connected with a sharp suction pipe in a threaded way, thus the sharp suction pipe can penetrate into a glue bag to suck the glue, and convenience can be achieved; the piston rod is provided with the guide groove, and the fixed plate is clamped into the guide groove, so that the follow-up rotation of the piston rod can be prevented.

The invention relates to a brake for protecting two or more elevator traction ropes which extend longitudinally, are parallel mutually and are arrayed lineally. The brake comprises two parallel clamping plates and a clamping plate driving device. The opposite surfaces of the two clamping plates are clamping surfaces. The brake is characterized in that: the wall of one side of one of the two clamping plates is provided with at least two longitudinal strip-shaped grooves, the wall of one side of the other clamping plate is provided with longitudinal strip-shaped lugs which correspond to the grooves, and the shapes of the lugs match with the inner shapes of the corresponding grooves. The brake adopts the grooves and the lugs to firmly clamp, lock and brake the traction rope, can effectively prevent the traction rope from sliding between the two parallel clamping plates, has a larger friction surface and improves the security. The asbestos lugs can be adopted to achieve the purposes of flexibly braking and protecting the traction rope through improving the flexibility and buffering during the contact with the traction rope.

The invention relates to the technical field of power distribution cabinets, and especially relates to a power distribution cabinet with an anti-theft function and for intelligent community power distribution engineering. The power distribution cabinet comprises an embedded groove formed in a wall body, a power distribution cabinet body is arranged in the embedded groove, and a sealing gasket used for filling a gap between the embedded groove and the power distribution cabinet body is arranged on the inner wall of the embedded groove through a fixing strip. Mounting seats are arranged on opposite side walls in the power distribution cabinet body through a group of hexagon socket screws, clamping mechanisms used for clamping the power distribution cabinet body into the embedding grooves are arranged on the surfaces of the mounting seats in a penetrating manner, limiting mechanisms are arranged between the clamping structures and the surfaces of the mounting seats, and an isolation plate is arranged in the power distribution cabinet body. By rotating the second gear, a reverse screw rod drives two clamping rods to move oppositely to get close to and get away from the clamping holes, so that the operation is more convenient during disassembly and assembly, the process of mounting and connecting by using bolts and expansion screws is omitted, the disassembly and assembly efficiency is improved, and later damaged replacement of the power distribution cabinet body is also facilitated.

The invention discloses a lifter for a lead cup of a high-position plate casting machine. According to the lifter, the lead cup (2) is positioned below a lead inlet pipe (1); and the lifter is arranged on the lead cup (2) and comprises levers (4), a spring (6), a fixing plate (7) and a cylinder (8), wherein middles of the two levers (4) are arranged on the fixing plate (7) by a guide pillar (5); stainless steel rods (3) are welded to two sides of the lead cup (2) respectively and are clamped at the front ends of the levers (4); the tail ends of the levers (4) are connected with the fixing plate (7) by the spring (6); and the cylinder (8) is arranged on the tail part of the fixing plate (7). The lifter is simple in structure, convenient to operate, high in continuous production of a workshop, low in labor intensity of workers and small in reject ratio of products, and the lead cup does not form a break and is stable in lead addition amount.

The invention provides a cable installation and stripping mechanism, comprising an outer skin dividing box, a first conveying pipe is fixedly installed on the left side of the outer skin dividing box, and a first controller is fixedly installed on the top of the outer skin dividing box, so the A shaping device is fixedly installed on the left side of the inner cavity of the outer skin dividing box, and a first electrically controlled telescopic rod is fixedly installed on the top of the inner cavity of the outer skin dividing box. The cable installation and stripping mechanism, by setting the splitting knife, uses the splitting knife to movably install on the positioning groove, the baffle plate is fixedly installed on the right side of the positioning groove, and the cable moves from left to right, so as to achieve the effect of combining and fixing the splitting knife. The friction between the wire and the splitting knife, the friction between the positioning groove and the splitting knife, and the baffle effectively fix the splitting knife, and it is convenient and convenient to replace it when damaged.

The invention provides a transverse excitation CO2 laser narrow pulse generating device based on a plasma switch, which comprises a focusing lens; a plasma switch, which is composed of a solid material and positioned at the focal point of the focusing lens, the focusing lens is provided with a hole. The TECO2 laser is focused on the hole of the plasma switch through the focusing lens to form a plasma. The tail part of the TECO2 laser is absorbed by the plasma, so as to generate laser narrow pulses. And a collimating lens arranged coaxially with the focusing lens for outputting the laser narrowpulse. The invention discloses a TECO2 laser narrow pulse generating device based on a plasma switch, which effectively cuts off a TECO2 laser pulse low-power long trailing part, achieves the aim ofcompressing the laser pulse width, has simple structure and convenient operation.

The invention discloses an automobile windshield wiper freezing preventing device using an electrothermal film. The device comprises the electrothermal film, a touch screen, a controller and a power supply, wherein the electrothermal film is connected with the power supply through a lead and the controller, the touch screen is connected with the controller through a data line, and the electrothermal film is pasted on the outer side of a windshield below a non-working position of a windshield wiper. The power supply is connected with a solar cell panel through a lead. The freezing preventing windshield wiper film is pasted in the local position below the windshield wiper, frost around the windshield wiper can be molten instantaneously during usage, then the windshield wiper can work to cooperate with front windshield demisting hot air, and the driving condition of an automobile can be quickly realized. The device is designed from the view of thermology, is simple in structure, is for vast users if used as a product, has no technical requirement for film pasting mounting and use and is more convenient to use and very convenient to replace once damaged. A large amount of existing equipment of the automobile is used, the cost is low, and refitting and transformation by vast owners are facilitated.

The invention relates to a buckling restrained brace large cantilever structure system, and belongs to the field of structural engineering. The structure system comprises a concrete combined column, aspecial-shaped cantilever beam and a buckling restrained brace arranged between the concrete combined column and the special-shaped cantilever beam; and the concrete combined column and the bucklingrestrained brace, and the special-shaped cantilever beam and the buckling restrained brace are connected through assembled metal connecting pieces. The buckling restrained brace is adopted as a support member of the structure system, and the special-shaped cantilever beam is connected with a square-section combined column; and the whole anti-seismic performance of the large cantilever structure system is effectively improved by utilizing the good energy dissipation and shock absorption effects of the buckling restrained brace. All parts of components in the whole structure system are connectedin an all-bolt connection mode, the field welding work is reduced, the connection is safe and reliable, the field assembly degree is high, the construction speed is high, the construction quality iseasy to guarantee, and the comprehensive cost performance is greatly improved.

The invention discloses an electric wire pay-off device. The electric wire pay-off device comprises a horizontally-arranged rectangular main body support, angle steel is arranged on the four corners of the rectangular main body support, steel plates are arranged on the four corners of the bottom side of the rectangular main body support, two directional wheels are arranged on one side of the bottom of each steel plate, two universal wheels are arranged on the other side of the bottom of each steel plate, a pay-off device frame is arranged in the position, located on the side of the directional wheels, of the top of the rectangular main body support, and galvanized square steel is arranged between the middle of the pay-off device frame and the middle of the rectangular main body support. The electric wire pay-off device has the characteristics of being multipurpose, time-saving and labor-saving.